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Changes On Branch bug6e8afe516d
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Changes In Branch bug6e8afe516d Excluding Merge-Ins

This is equivalent to a diff from b1e5bf2c to 7e5f5e69

2019-08-28
19:27
Merge TIP #532 implementation now that [c1c842ef7792] (new tkBind.c: wrong assumption about ButtonRelease to match Button presses) is fixed. check-in: 84fbb57a user: fvogel tags: core-8-6-branch
2019-08-14
19:49
Fix some dark mode legibility issues with dialogs and message boxes on macOS. Thanks to Christopher Chavez. check-in: d0330408 user: culler tags: core-8-6-branch
04:16
Begin branch to remove deprecated API calls on Catalina check-in: 53c14cc2 user: kevin_walzer tags: catalina_dialogs
2019-08-13
18:30
In Tk 8.6, there are only maximum 5 buttons ..... Closed-Leaf check-in: 7e5f5e69 user: jan.nijtmans tags: bug6e8afe516d, tip-532
17:02
Fix change leftover by [77c5995568] check-in: 126ca38c user: fvogel tags: bug6e8afe516d, tip-532
09:34
Merge 8.6 check-in: 5f024186 user: jan.nijtmans tags: bug6e8afe516d, tip-532
09:32
Merge 8.6 check-in: 3bc85b07 user: jan.nijtmans tags: trunk
09:11
A few more places where "unsigned long" should have been used. check-in: b1e5bf2c user: jan.nijtmans tags: core-8-6-branch
08:33
Fix indenting in bind.test (taken from TIP #532 branch) check-in: f0455f9c user: jan.nijtmans tags: core-8-6-branch

Changes to doc/bind.n.

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'\"
'\" Copyright (c) 1990 The Regents of the University of California.
'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
'\" Copyright (c) 1998 by Scriptics Corporation.
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\" 
.TH bind n 8.0 Tk "Tk Built-In Commands"
.so man.macros
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
bind \- Arrange for X events to invoke Tcl scripts
.SH SYNOPSIS






|







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'\"
'\" Copyright (c) 1990 The Regents of the University of California.
'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
'\" Copyright (c) 1998 by Scriptics Corporation.
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH bind n 8.0 Tk "Tk Built-In Commands"
.so man.macros
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
bind \- Arrange for X events to invoke Tcl scripts
.SH SYNOPSIS

Changes to doc/event.n.

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as a path name for a Tk widget or as an integer window identifier.
Valid for \fBKeyPress\fR, \fBKeyRelease\fR, \fBButtonPress\fR,
\fBButtonRelease\fR, \fBEnter\fR, \fBLeave\fR, and \fBMotion\fR events.
Similar to \fB%S\fR substitution for binding scripts.
.TP
\fB\-time\fI integer\fR
\fIInteger\fR must be an integer value;  it specifies the \fItime\fR field
for the event.

Valid for \fBKeyPress\fR, \fBKeyRelease\fR, \fBButtonPress\fR,
\fBButtonRelease\fR, \fBEnter\fR, \fBLeave\fR, \fBMotion\fR,
and \fBProperty\fR events.
Corresponds to the \fB%t\fR substitution for binding scripts.
.TP
\fB\-warp\fI boolean\fR
\fIboolean\fR must be a boolean value;  it specifies whether






|
>







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as a path name for a Tk widget or as an integer window identifier.
Valid for \fBKeyPress\fR, \fBKeyRelease\fR, \fBButtonPress\fR,
\fBButtonRelease\fR, \fBEnter\fR, \fBLeave\fR, and \fBMotion\fR events.
Similar to \fB%S\fR substitution for binding scripts.
.TP
\fB\-time\fI integer\fR
\fIInteger\fR must be an integer value;  it specifies the \fItime\fR field
for the event. Additonally the special value \fBcurrent\fR is allowed,
this value will be substituted by the current event time.
Valid for \fBKeyPress\fR, \fBKeyRelease\fR, \fBButtonPress\fR,
\fBButtonRelease\fR, \fBEnter\fR, \fBLeave\fR, \fBMotion\fR,
and \fBProperty\fR events.
Corresponds to the \fB%t\fR substitution for binding scripts.
.TP
\fB\-warp\fI boolean\fR
\fIboolean\fR must be a boolean value;  it specifies whether

Added generic/tkArray.h.



































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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/*
 * tkArray.h --
 *
 * An array is a sequence of items, stored in a contiguous memory region.
 * Random access to any item is very fast. New items can be either appended
 * or prepended. An array may be traversed in the forward or backward direction.
 *
 * Copyright (c) 2018-2019 by Gregor Cramer.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

/*
 * Note that this file will not be included in header files, it is the purpose
 * of this file to be included in source files only. Thus we are not using the
 * prefix "Tk_" here for functions, because all the functions have private scope.
 */

/*
 * -------------------------------------------------------------------------------
 * Use the array in the following way:
 * -------------------------------------------------------------------------------
 * typedef struct { int key, value; } Pair;
 * TK_PTR_ARRAY_DEFINE(MyArray, Pair);
 * MyArray *arr = NULL;
 * if (MyArray_IsEmpty(arr)) {
 *     MyArray_Append(&arr, MakePair(1, 2));
 *     MyArray_Append(&arr, MakePair(2, 3));
 *     for (i = 0; i < MyArray_Size(arr); ++i) {
 *         Pair *p = MyArray_Get(arr, i);
 *         printf("%d -> %d\n", p->key, p->value);
 *         ckfree(p);
 *     }
 *     MyArray_Free(&arr);
 *     assert(arr == NULL);
 * }
 * -------------------------------------------------------------------------------
 * Or with aggregated elements:
 * -------------------------------------------------------------------------------
 * typedef struct { int key, value; } Pair;
 * TK_ARRAY_DEFINE(MyArray, Pair);
 * Pair p1 = { 1, 2 };
 * Pair p2 = { 2, 3 };
 * MyArray *arr = NULL;
 * if (MyArray_IsEmpty(arr)) {
 *     MyArray_Append(&arr, p1);
 *     MyArray_Append(&arr, p2);
 *     for (i = 0; i < MyArray_Size(arr); ++i) {
 *         const Pair *p = MyArray_Get(arr, i);
 *         printf("%d -> %d\n", p->key, p->value);
 *     }
 *     MyArray_Free(&arr);
 *     assert(arr == NULL);
 * }
 * -------------------------------------------------------------------------------
 */

/*************************************************************************/
/*
 * Two array types will be provided:
 * Use TK_ARRAY_DEFINE if your array is aggregating the elements. Use
 * TK_PTR_ARRAY_DEFINE if your array contains pointers to elements. But
 * in latter case the array is not responsible for the lifetime of the
 * elements.
 */
/*************************************************************************/
/*
 * Array_ElemSize: Returns the memory size for one array element.
 */
/*************************************************************************/
/*
 * Array_BufferSize: Returns the memory size for given number of elements.
 */
/*************************************************************************/
/*
 * Array_IsEmpty: Array is empty?
 */
/*************************************************************************/
/*
 * Array_Size: Number of elements in array.
 */
/*************************************************************************/
/*
 * Array_Capacity: Capacity of given array. This is the maximal number of
 * elements fitting into current array memory without resizing the buffer.
 */
/*************************************************************************/
/*
 * Array_SetSize: Set array size, new size must not exceed the capacity of
 * the array. This function has to be used with care when increasing the
 * array size.
 */
/*************************************************************************/
/*
 * Array_First: Returns position of first element in array. Given array
 * may be NULL.
 */
/*************************************************************************/
/*
 * Array_Last: Returns position after last element in array. Given array
 * may be empty.
 */
/*************************************************************************/
/*
 * Array_Front: Returns first element in array. Given array must not be
 * empty.
 */
/*************************************************************************/
/*
 * Array_Back: Returns last element in array. Given array must not be
 * empty.
 */
/*************************************************************************/
/*
 * Array_Resize: Resize buffer of array for given number of elements. The
 * array may grow or shrink. Note that this function is not initializing
 * the increased buffer.
 */
/*************************************************************************/
/*
 * Array_ResizeAndClear: Resize buffer of array for given number of
 * elements. The array may grow or shrink. The increased memory will be
 * filled with zeroes.
 */
/*************************************************************************/
/*
 * Array_Clear: Fill specified range with zeroes.
 */
/*************************************************************************/
/*
 * Array_Free: Resize array to size zero. This function will release the
 * array buffer.
 */
/*************************************************************************/
/*
 * Array_Append: Insert given element after end of array.
 */
/*************************************************************************/
/*
 * Array_PopBack: Shrink array by one element. Given array must not be
 * empty.
 */
/*************************************************************************/
/*
 * Array_Get: Random access to array element at given position. The given
 * index must not exceed current array size.
 */
/*************************************************************************/
/*
 * Array_Set: Replace array element at given position with new value. The
 * given index must not exceed current array size.
 */
/*************************************************************************/
/*
 * Array_Find: Return index position of element which matches given
 * argument. If not found then -1 will be returned.
 */
/*************************************************************************/

#ifndef TK_ARRAY_DEFINED
#define TK_ARRAY_DEFINED

#include "tkInt.h"

#if defined(__GNUC__) || defined(__clang__)
# define __TK_ARRAY_UNUSED __attribute__((unused))
#else
# define __TK_ARRAY_UNUSED
#endif

#define TK_ARRAY_DEFINE(AT, ElemType) /* AT = type of array */			\
/* ------------------------------------------------------------------------- */	\
typedef struct AT {								\
    size_t size;								\
    size_t capacity;								\
    ElemType buf[1];								\
} AT;										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Init(AT *arr)								\
{										\
    assert(arr);								\
    arr->size = 0;								\
    arr->capacity = 0;								\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_ElemSize()									\
{										\
    return sizeof(ElemType);							\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_BufferSize(size_t numElems)						\
{										\
    return numElems*sizeof(ElemType);						\
}										\
										\
__TK_ARRAY_UNUSED								\
static int									\
AT##_IsEmpty(const AT *arr)							\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return !arr || arr->size == 0u;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_Size(const AT *arr)							\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->size : 0u;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_Capacity(const AT *arr)							\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->capacity : 0u;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_First(AT *arr)								\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->buf : NULL;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Last(AT *arr)								\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->buf + arr->size : NULL;					\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Front(AT *arr)								\
{										\
    assert(arr);								\
    assert(arr->size != 0xdeadbeef);						\
    assert(!AT##_IsEmpty(arr));							\
    return &arr->buf[0];							\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Back(AT *arr)								\
{										\
    assert(arr);								\
    assert(arr->size != 0xdeadbeef);						\
    assert(!AT##_IsEmpty(arr));							\
    return &arr->buf[arr->size - 1];						\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Resize(AT **arrp, size_t newSize)						\
{										\
    assert(arrp);								\
    assert(!*arrp || (*arrp)->size != 0xdeadbeef);				\
    if (newSize == 0) {								\
	assert(!*arrp || ((*arrp)->size = 0xdeadbeef));				\
	ckfree(*arrp);								\
	*arrp = NULL;								\
    } else {									\
	int init = *arrp == NULL;						\
	size_t memSize = AT##_BufferSize(newSize - 1) + sizeof(AT);		\
	*arrp = ckrealloc(*arrp, memSize);					\
	if (init) {								\
	    (*arrp)->size = 0;							\
	} else if (newSize < (*arrp)->size) {					\
	    (*arrp)->size = newSize;						\
	}									\
	(*arrp)->capacity = newSize;						\
    }										\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Clear(AT *arr, size_t from, size_t to)					\
{										\
    assert(arr);								\
    assert(arr->size != 0xdeadbeef);						\
    assert(to <= AT##_Capacity(arr));						\
    assert(from <= to);								\
    memset(arr->buf + from, 0, AT##_BufferSize(to - from));			\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_ResizeAndClear(AT **arrp, size_t newSize)					\
{										\
    size_t oldCapacity;								\
    assert(arrp);								\
    oldCapacity = *arrp ? (*arrp)->capacity : 0;				\
    AT##_Resize(arrp, newSize);							\
    if (newSize > oldCapacity) {						\
	AT##_Clear(*arrp, oldCapacity, newSize);				\
    }										\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_SetSize(AT *arr, size_t newSize)						\
{										\
    assert(newSize <= AT##_Capacity(arr));					\
    assert(!arr || arr->size != 0xdeadbeef);					\
    if (arr) {									\
	arr->size = newSize;							\
    }										\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Append(AT **arrp, ElemType *elem)						\
{										\
    assert(arrp);								\
    if (!*arrp) {								\
	AT##_Resize(arrp, 1);							\
    } else if ((*arrp)->size == (*arrp)->capacity) {				\
	AT##_Resize(arrp, (*arrp)->capacity + ((*arrp)->capacity + 1)/2);	\
    }										\
    (*arrp)->buf[(*arrp)->size++] = *elem;					\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_PopBack(AT *arr)								\
{										\
    assert(!AT##_IsEmpty(arr));							\
    return arr->size -= 1;							\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Get(const AT *arr, size_t at)						\
{										\
    assert(arr);								\
    assert(at < AT##_Size(arr));						\
    return (ElemType *) &arr->buf[at];						\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Set(AT *arr, size_t at, ElemType *elem)					\
{										\
    assert(arr);								\
    assert(at < AT##_Size(arr));						\
    arr->buf[at] = *elem;							\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Free(AT **arrp)								\
{										\
    AT##_Resize(arrp, 0);							\
}										\
										\
__TK_ARRAY_UNUSED								\
static int									\
AT##_Find(const AT *arr, const ElemType *elem)					\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    if (arr) {									\
	const ElemType *buf = arr->buf;						\
	size_t i;								\
	for (i = 0; i < arr->size; ++i) {					\
	    if (memcmp(&buf[i], elem, sizeof(ElemType)) == 0) {			\
		return (int) i;							\
	    }									\
	}									\
    }										\
    return -1;									\
}										\
										\
__TK_ARRAY_UNUSED								\
static int									\
AT##_Contains(const AT *arr, const ElemType *elem)				\
{										\
    return AT##_Find(arr, elem) != -1;						\
}										\
/* ------------------------------------------------------------------------- */

#define TK_PTR_ARRAY_DEFINE(AT, ElemType) /* AT = type of array */		\
/* ------------------------------------------------------------------------- */	\
typedef struct AT {								\
    size_t size;								\
    size_t capacity;								\
    ElemType *buf[1];								\
} AT;										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_ElemSize()									\
{										\
    return sizeof(ElemType);							\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_BufferSize(size_t numElems)						\
{										\
    return numElems*sizeof(ElemType *);						\
}										\
										\
__TK_ARRAY_UNUSED								\
static int									\
AT##_IsEmpty(const AT *arr)							\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return !arr || arr->size == 0;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType **								\
AT##_First(AT *arr)								\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->buf : NULL;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType **								\
AT##_Last(AT *arr)								\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->buf + arr->size : NULL;					\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Front(AT *arr)								\
{										\
    assert(arr);								\
    assert(arr->size != 0xdeadbeef);						\
    assert(!AT##_IsEmpty(arr));							\
    return arr->buf[0];								\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Back(AT *arr)								\
{										\
    assert(arr);								\
    assert(arr->size != 0xdeadbeef);						\
    assert(!AT##_IsEmpty(arr));							\
    return arr->buf[arr->size - 1];						\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_Size(const AT *arr)							\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->size : 0;							\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_Capacity(const AT *arr)							\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->capacity : 0;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Resize(AT **arrp, size_t newCapacity)					\
{										\
    assert(arrp);								\
    assert(!*arrp || (*arrp)->size != 0xdeadbeef);				\
    if (newCapacity == 0) {							\
	assert(!*arrp || ((*arrp)->size = 0xdeadbeef));				\
	ckfree(*arrp);								\
	*arrp = NULL;								\
    } else {									\
	int init = *arrp == NULL;						\
	size_t memSize = AT##_BufferSize(newCapacity - 1) + sizeof(AT);		\
	*arrp = ckrealloc(*arrp, memSize);					\
	if (init) {								\
	    (*arrp)->size = 0;							\
	} else if (newCapacity < (*arrp)->size) {				\
	    (*arrp)->size = newCapacity;					\
	}									\
	(*arrp)->capacity = newCapacity;					\
    }										\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Clear(AT *arr, size_t from, size_t to)					\
{										\
    assert(arr);								\
    assert(arr->size != 0xdeadbeef);						\
    assert(to <= AT##_Capacity(arr));						\
    assert(from <= to);								\
    memset(arr->buf + from, 0, AT##_BufferSize(to - from));			\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_ResizeAndClear(AT **arrp, size_t newCapacity)				\
{										\
    size_t oldCapacity;								\
    assert(arrp);								\
    oldCapacity = *arrp ? (*arrp)->capacity : 0;				\
    AT##_Resize(arrp, newCapacity);						\
    if (newCapacity > oldCapacity) {						\
	AT##_Clear(*arrp, oldCapacity, newCapacity);				\
    }										\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_SetSize(AT *arr, size_t newSize)						\
{										\
    assert(arr);								\
    assert(newSize <= AT##_Capacity(arr));					\
    arr->size = newSize;							\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Append(AT **arrp, ElemType *elem)						\
{										\
    assert(arrp);								\
    if (!*arrp) {								\
	AT##_Resize(arrp, 1);							\
    } else if ((*arrp)->size == (*arrp)->capacity) {				\
	AT##_Resize(arrp, (*arrp)->capacity + ((*arrp)->capacity + 1)/2);	\
    }										\
    (*arrp)->buf[(*arrp)->size++] = elem;					\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_PopBack(AT *arr)								\
{										\
    assert(!AT##_IsEmpty(arr));							\
    return arr->size -= 1;							\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Get(const AT *arr, size_t at)						\
{										\
    assert(arr);								\
    assert(at < AT##_Size(arr));						\
    return arr->buf[at];							\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Set(AT *arr, size_t at, ElemType *elem)					\
{										\
    assert(arr);								\
    assert(at < AT##_Size(arr));						\
    arr->buf[at] = elem;							\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Free(AT **arrp)								\
{										\
    AT##_Resize(arrp, 0);							\
}										\
										\
__TK_ARRAY_UNUSED								\
static int									\
AT##_Find(const AT *arr, const ElemType *elem)					\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    if (arr) {									\
	ElemType *const *buf = arr->buf;					\
	size_t i;								\
	for (i = 0; i < arr->size; ++i) {					\
	    if (buf[i] == elem) {						\
		return (int) i;							\
	    }									\
	}									\
    }										\
    return -1;									\
}										\
										\
__TK_ARRAY_UNUSED								\
static int									\
AT##_Contains(const AT *arr, const ElemType *elem)				\
{										\
    return AT##_Find(arr, elem) != -1;						\
}										\
/* ------------------------------------------------------------------------- */

#endif /* TK_ARRAY_DEFINED */

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 105
 * End:
 * vi:set ts=8 sw=4:
 */

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/*
 * tkBind.c --
 *
 *	This file provides functions that associate Tcl commands with X events
 *	or sequences of X events.
 *
 * Copyright (c) 1989-1994 The Regents of the University of California.
 * Copyright (c) 1994-1997 Sun Microsystems, Inc.
 * Copyright (c) 1998 by Scriptics Corporation.

 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tkInt.h"



#ifdef _WIN32
#include "tkWinInt.h"
#elif defined(MAC_OSX_TK)
#include "tkMacOSXInt.h"
#else
#include "tkUnixInt.h"
#endif

















/*
 * File structure:
 *
 * Structure definitions and static variables.
 *
 * Init/Free this package.
 *
 * Tcl "bind" command (actually located in tkCmds.c) core implementation, plus
 * helpers.
 *
 * Tcl "event" command implementation, plus helpers.
 *
 * Package-specific common helpers.
 *
 * Non-package-specific helpers.
 */

/*



















































 * The following union is used to hold the detail information from an XEvent
 * (including Tk's XVirtualEvent extension).
 */



typedef union {
    KeySym keySym;		/* KeySym that corresponds to xkey.keycode. */
    int button;			/* Button that was pressed (xbutton.button). */
    Tk_Uid name;		/* Tk_Uid of virtual event. */

    ClientData clientData;	/* Used when type of Detail is unknown, and to



				 * ensure that all bytes of Detail are









				 * initialized when this structure is used in



				 * a hash key. */


} Detail;






































/*
 * The structure below represents a binding table. A binding table represents
 * a domain in which event bindings may occur. It includes a space of objects
 * relative to which events occur (usually windows, but not always), a history
 * of recent events in the domain, and a set of mappings that associate
 * particular Tcl commands with sequences of events in the domain. Multiple
 * binding tables may exist at once, either because there are multiple
 * applications open, or because there are multiple domains within an
 * application with separate event bindings for each (for example, each canvas
 * widget has a separate binding table for associating events with the items
 * in the canvas).
 *
 * Note: it is probably a bad idea to reduce EVENT_BUFFER_SIZE much below 30.
 * To see this, consider a triple mouse button click while the Shift key is
 * down (and auto-repeating). There may be as many as 3 auto-repeat events
 * after each mouse button press or release (see the first large comment block
 * within Tk_BindEvent for more on this), for a total of 20 events to cover
 * the three button presses and two intervening releases. If you reduce
 * EVENT_BUFFER_SIZE too much, shift multi-clicks will be lost.
 */

/*
 * NOTE: The changes which were needed to make Tk work on OSX 10.14 (Mojave)
 * also demand that the event ring be a bit bigger.  It might be wise to
 * augment the current double-click pattern matching by adding a new
 * DoubleClick modifier bit which could be set based on the clickCount of the
 * Apple NSEvent object.
 */

#ifdef MAC_OSX_TK
  #define EVENT_BUFFER_SIZE 90
#else
  #define EVENT_BUFFER_SIZE 30
#endif


typedef struct Tk_BindingTable_ {
    XEvent eventRing[EVENT_BUFFER_SIZE];
				/* Circular queue of recent events (higher
				 * indices are for more recent events). */
    Detail detailRing[EVENT_BUFFER_SIZE];
				/* "Detail" information (keySym, button,
				 * Tk_Uid, or 0) for each entry in
				 * eventRing. */
    int curEvent;		/* Index in eventRing of most recent event.
				 * Newer events have higher indices. */
    Tcl_HashTable patternTable;	/* Used to map from an event to a list of
				 * patterns that may match that event. Keys
				 * are PatternTableKey structs, values are
				 * (PatSeq *). */

    Tcl_HashTable objectTable;	/* Used to map from an object to a list of
				 * patterns associated with that object. Keys
				 * are ClientData, values are (PatSeq *). */
    Tcl_Interp *interp;		/* Interpreter in which commands are
				 * executed. */
} BindingTable;

/*
 * The following structure represents virtual event table. A virtual event
 * table provides a way to map from platform-specific physical events such as
 * button clicks or key presses to virtual events such as <<Paste>>,
 * <<Close>>, or <<ScrollWindow>>.
 *
 * A virtual event is usually never part of the event stream, but instead is
 * synthesized inline by matching low-level events. However, a virtual event
 * may be generated by platform-specific code or by Tcl commands. In that case,
 * no lookup of the virtual event will need to be done using this table,
 * because the virtual event is actually in the event stream.
 */

typedef struct {
    Tcl_HashTable patternTable;	/* Used to map from a physical event to a list
				 * of patterns that may match that event. Keys
				 * are PatternTableKey structs, values are
				 * (PatSeq *). */
    Tcl_HashTable nameTable;	/* Used to map a virtual event name to the
				 * array of physical events that can trigger
				 * it. Keys are the Tk_Uid names of the
				 * virtual events, values are PhysicalsOwned
				 * structs. */
} VirtualEventTable;

/*
 * The following structure is used as a key in a patternTable for both binding
 * tables and a virtual event tables.
 *
 * In a binding table, the object field corresponds to the binding tag for the
 * widget whose bindings are being accessed.
 *
 * In a virtual event table, the object field is always NULL. Virtual events
 * are a global definiton and are not tied to a particular binding tag.
 *
 * The same key is used for both types of pattern tables so that the helper
 * functions that traverse and match patterns will work for both binding
 * tables and virtual event tables.
 */

typedef struct {
    ClientData object;		/* For binding table, identifies the binding
				 * tag of the object (or class of objects)
				 * relative to which the event occurred. For
				 * virtual event table, always NULL. */
    int type;			/* Type of event (from X). */
    Detail detail;		/* Additional information, such as keysym,
				 * button, Tk_Uid, or 0 if nothing
				 * additional. */
} PatternTableKey;

/*
 * The following structure defines a pattern, which is matched against X
 * events as part of the process of converting X events into Tcl commands.



 */

typedef struct {
    int eventType;		/* Type of X event, e.g. ButtonPress. */

    int needMods;		/* Mask of modifiers that must be present (0
				 * means no modifiers are required). */
    Detail detail;		/* Additional information that must match
				 * event. Normally this is 0, meaning no
				 * additional information must match. For
				 * KeyPress and KeyRelease events, a keySym
				 * may be specified to select a particular
				 * keystroke (0 means any keystrokes). For
				 * button events, specifies a particular
				 * button (0 means any buttons are OK). For
				 * virtual events, specifies the Tk_Uid of the
				 * virtual event name (never 0). */
} TkPattern;









/*
 * The following structure defines a pattern sequence, which consists of one
 * or more patterns. In order to trigger, a pattern sequence must match the
 * most recent X events (first pattern to most recent event, next pattern to
 * next event, and so on). It is used as the hash value in a patternTable for
 * both binding tables and virtual event tables.
 *
 * In a binding table, it is the sequence of physical events that make up a
 * binding for an object.
 *
 * In a virtual event table, it is the sequence of physical events that define
 * a virtual event.
 *
 * The same structure is used for both types of pattern tables so that the
 * helper functions that traverse and match patterns will work for both
 * binding tables and virtual event tables.
 */

typedef struct PatSeq {
    int numPats;		/* Number of patterns in sequence (usually



				 * 1). */



    char *script;		/* Binding script to evaluate when sequence
				 * matches (ckalloc()ed) */
    int flags;			/* Miscellaneous flag values; see below for

				 * definitions. */
    struct PatSeq *nextSeqPtr;	/* Next in list of all pattern sequences that
				 * have the same initial pattern. NULL means
				 * end of list. */
    Tcl_HashEntry *hPtr;	/* Pointer to hash table entry for the initial
				 * pattern. This is the head of the list of
				 * which nextSeqPtr forms a part. */
    struct VirtualOwners *voPtr;/* In a binding table, always NULL. In a

				 * virtual event table, identifies the array
				 * of virtual events that can be triggered by
				 * this event. */
    struct PatSeq *nextObjPtr;	/* In a binding table, next in list of all
				 * pattern sequences for the same object (NULL
				 * for end of list). Needed to implement
				 * Tk_DeleteAllBindings. In a virtual event
				 * table, always NULL. */

    TkPattern pats[1];		/* Array of "numPats" patterns. Only one
				 * element is declared here but in actuality
				 * enough space will be allocated for
				 * "numPats" patterns. To match, pats[0] must
				 * match event n, pats[1] must match event
				 * n-1, etc. */
} PatSeq;

/*
 * Flag values for PatSeq structures:
 *
 * PAT_NEARBY		1 means that all of the events matching this sequence
 *			must occur with nearby X and Y mouse coordinates and
 *			close in time. This is typically used to restrict
 *			multiple button presses.

 */

#define PAT_NEARBY		0x1

/*
 * Constants that define how close together two events must be in milliseconds
 * or pixels to meet the PAT_NEARBY constraint:
 */

#define NEARBY_PIXELS		5
#define NEARBY_MS		500

/*
 * The following structure keeps track of all the virtual events that are
 * associated with a particular physical event. It is pointed to by the voPtr
 * field in a PatSeq in the patternTable of a virtual event table.
 */

typedef struct VirtualOwners {
    int numOwners;		/* Number of virtual events to trigger. */
    Tcl_HashEntry *owners[1];	/* Array of pointers to entries in nameTable.
				 * Enough space will actually be allocated for
				 * numOwners hash entries. */
} VirtualOwners;

/*
 * The following structure is used in the nameTable of a virtual event table
 * to associate a virtual event with all the physical events that can trigger
 * it.
 */
typedef struct {
    int numOwned;		/* Number of physical events owned. */
    PatSeq *patSeqs[1];		/* Array of pointers to physical event
				 * patterns. Enough space will actually be
				 * allocated to hold numOwned. */
} PhysicalsOwned;

/*
 * One of the following structures exists for each interpreter. This structure
 * keeps track of the current display and screen in the interpreter, so that a
 * command can be invoked whenever the display/screen changes (the command does
 * things like point tk::Priv at a display-specific structure).
 */

typedef struct {
    TkDisplay *curDispPtr;	/* Display for last binding command invoked in
				 * this application. */
    int curScreenIndex;		/* Index of screen for last binding command */
    int bindingDepth;		/* Number of active instances of Tk_BindEvent
				 * in this application. */
} ScreenInfo;

/*
 * The following structure keeps track of all the information local to the
 * binding package on a per interpreter basis.
 */

typedef struct TkBindInfo_ {
    VirtualEventTable virtualEventTable;
				/* The virtual events that exist in this
				 * interpreter. */
    ScreenInfo screenInfo;	/* Keeps track of the current display and
				 * screen, so it can be restored after a
				 * binding has executed. */
    int deleted;		/* 1 the application has been deleted but the
				 * structure has been preserved. */


} BindInfo;

/*
 * In X11R4 and earlier versions, XStringToKeysym is ridiculously slow. The
 * data structure and hash table below, along with the code that uses them,
 * implement a fast mapping from strings to keysyms. In X11R5 and later
 * releases XStringToKeysym is plenty fast so this stuff isn't needed. The
 * #define REDO_KEYSYM_LOOKUP is normally undefined, so that XStringToKeysym
 * gets used. It can be set in the Makefile to enable the use of the hash
 * table below.
 */

#ifdef REDO_KEYSYM_LOOKUP
typedef struct {
    const char *name;			/* Name of keysym. */
    KeySym value;		/* Numeric identifier for keysym. */
} KeySymInfo;
static const KeySymInfo keyArray[] = {
#ifndef lint
#include "ks_names.h"
#endif
    {NULL, 0}
};
static Tcl_HashTable keySymTable; /* keyArray hashed by keysym value. */
static Tcl_HashTable nameTable;	/* keyArray hashed by keysym name. */
#endif /* REDO_KEYSYM_LOOKUP */

/*
 * Set to non-zero when the package-wide static variables have been
 * initialized.
 */

static int initialized = 0;
TCL_DECLARE_MUTEX(bindMutex)

/*
 * A hash table is kept to map from the string names of event modifiers to
 * information about those modifiers. The structure for storing this
 * information, and the hash table built at initialization time, are defined
 * below.
 */

typedef struct {
    const char *name; /* Name of modifier. */
    int mask;			/* Button/modifier mask value, such as
				 * Button1Mask. */
    int flags;			/* Various flags; see below for
				 * definitions. */
} ModInfo;

/*
 * Flags for ModInfo structures:
 *
 * DOUBLE -		Non-zero means duplicate this event,
 *			e.g. for double-clicks.
 * TRIPLE -		Non-zero means triplicate this event,
 *			e.g. for triple-clicks.
 * QUADRUPLE -		Non-zero means quadruple this event,
 *			e.g. for 4-fold-clicks.
 * MULT_CLICKS -	Combination of all of above.
 */

#define DOUBLE		1
#define TRIPLE		2
#define QUADRUPLE	4
#define MULT_CLICKS	7

static const ModInfo modArray[] = {
    {"Control",		ControlMask,	0},
    {"Shift",		ShiftMask,	0},
    {"Lock",		LockMask,	0},
    {"Meta",		META_MASK,	0},
    {"M",		META_MASK,	0},








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/*
 * tkBind.c --
 *
 *	This file provides functions that associate Tcl commands with X events
 *	or sequences of X events.
 *
 * Copyright (c) 1989-1994 The Regents of the University of California.
 * Copyright (c) 1994-1997 Sun Microsystems, Inc.
 * Copyright (c) 1998 by Scriptics Corporation.
 * Copyright (c) 2018-2019 by Gregor Cramer.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tkInt.h"
#include "tkDList.h"
#include "tkArray.h"

#if defined(_WIN32)
#include "tkWinInt.h"
#elif defined(MAC_OSX_TK)
#include "tkMacOSXInt.h"
#else /* if defined(__unix__) */
#include "tkUnixInt.h"
#endif

#if NDEBUG
# define DEBUG(expr)
#else
# define DEBUG(expr) expr
#endif

#ifdef _MSC_VER
/*
 * Earlier versions of MSVC don't know snprintf, but _snprintf is compatible.
 * Note that sprintf is deprecated.
 */
# define snprintf _snprintf
#endif

#define SIZE_OF_ARRAY(arr) (sizeof(arr)/sizeof(arr[0]))

/*
 * File structure:
 *
 * Structure definitions and static variables.
 *
 * Init/Free this package.
 *
 * Tcl "bind" command (actually located in tkCmds.c) core implementation, plus helpers.

 *
 * Tcl "event" command implementation, plus helpers.
 *
 * Package-specific common helpers.
 *
 * Non-package-specific helpers.
 */

/*
 * In old implementation (the one that used an event ring), <Double-1> and <1><1> were
 * equivalent sequences. However it is logical to give <Double-1> higher precedence.
 * This can be achieved by setting PREFER_MOST_SPECIALIZED_EVENT to 1.
 */

#ifndef PREFER_MOST_SPECIALIZED_EVENT
# define PREFER_MOST_SPECIALIZED_EVENT 0
#endif

/*
 * Traditionally motion events can be combined with buttons in this way: <B1-B2-Motion>.
 * However it should be allowed to express this as <Motion-1-2> in addition. This can be
 * achieved by setting SUPPORT_ADDITIONAL_MOTION_SYNTAX to 1.
 */

#ifndef SUPPORT_ADDITIONAL_MOTION_SYNTAX
# define SUPPORT_ADDITIONAL_MOTION_SYNTAX 0 /* set to 1 if wanted */
#endif

/*
 * The output for motion events is of the type <B1-Motion>. This can be changed to become
 * <Motion-1> instead by setting PRINT_SHORT_MOTION_SYNTAX to 1, however this would be a
 * backwards incompatibility.
 */

#ifndef PRINT_SHORT_MOTION_SYNTAX
# define PRINT_SHORT_MOTION_SYNTAX 0 /* set to 1 if wanted */
#endif

#if !SUPPORT_ADDITIONAL_MOTION_SYNTAX
# undef PRINT_SHORT_MOTION_SYNTAX
# define PRINT_SHORT_MOTION_SYNTAX 0
#endif

/*
 * For debugging only, normally set to zero.
 */

#ifdef SUPPORT_DEBUGGING
# undef SUPPORT_DEBUGGING
#endif
#define SUPPORT_DEBUGGING 0

/*
 * Test validity of PSEntry items.
 */

# define TEST_PSENTRY(psPtr) psPtr->number != 0xdeadbeef
# define MARK_PSENTRY(psPtr) psPtr->number = 0xdeadbeef

/*
 * The following union is used to hold the detail information from an XEvent
 * (including Tk's XVirtualEvent extension).
 */

typedef KeySym Info;

typedef union {
    Info info;		/* This either corresponds to xkey.keycode, or to xbutton.button,
    			 * or is meaningless, depending on event type. */
    Tk_Uid name;	/* Tk_Uid of virtual event. */
} Detail;

/*
 * We need an extended event definition.
 */

typedef struct {
    XEvent xev;		/* The original event from server. */
    Detail detail;	/* Additional information (for hashing). */
    unsigned countAny;	/* Count of multi-events, like multi-clicks, or repeated key pressing,
    			 * this count does not depend on detail (keySym or button). */
    unsigned countDetailed;
    			/* Count of multi-events, like multi-clicks, or repeated key pressing,
    			 * this count considers the detail (keySym or button). */
} Event;

/*
 * We need a structure providing a list of pattern sequences.
 */

typedef unsigned EventMask;
typedef unsigned long ModMask;

struct PatSeq; /* forward declaration */

/* We need this array for bookkeeping the last matching modifier mask per pattern. */
TK_ARRAY_DEFINE(PSModMaskArr, ModMask);

typedef struct PSEntry {
    TK_DLIST_LINKS(PSEntry);	/* Makes this struct a double linked list; must be first entry. */
    Window window;		/* Window of last match. */
    struct PatSeq* psPtr;	/* Pointer to pattern sequence. */
    PSModMaskArr *lastModMaskArr;
    				/* Last matching modifier mask per pattern (except last pattern).
    				 * Only needed if pattern sequence is not single (more than one
				 * pattern), and if one of these patterns contains a non-zero
				 * modifier mask. */
    unsigned count;		/* Only promote to next level if this count has reached count of
    				 * pattern. */
    unsigned expired:1;		/* Whether this entry is expired, this means it has to be removed
    				 * from promotion list. */
    unsigned keepIt:1;		/* Whether to keep this entry, even if expired. */
} PSEntry;

/* Defining the whole PSList_* stuff (list of PSEntry items). */
TK_DLIST_DEFINE(PSList, PSEntry);

/* Don't keep larger arrays of modifier masks inside PSEntry. */
#define MAX_MOD_MASK_ARR_SIZE 8

/*
 * Maps and lookup tables from an event to a list of patterns that match that event.
 */

typedef struct {
    Tcl_HashTable patternTable;	/* Keys are PatternTableKey structs, values are (PatSeq *). */
    Tcl_HashTable listTable;	/* Keys are PatternTableKey structs, values are (PSList *). */
    PSList entryPool;		/* Contains free (unused) list items. */
    unsigned number;		/* Needed for enumeration of pattern sequences. */
} LookupTables;

/*
 * The structure below represents a binding table. A binding table represents
 * a domain in which event bindings may occur. It includes a space of objects
 * relative to which events occur (usually windows, but not always), a history
 * of recent events in the domain, and a set of mappings that associate
 * particular Tcl commands with sequences of events in the domain. Multiple
 * binding tables may exist at once, either because there are multiple
 * applications open, or because there are multiple domains within an
 * application with separate event bindings for each (for example, each canvas
 * widget has a separate binding table for associating events with the items
 * in the canvas).
 */
















/* defining the whole Promotion_* stuff (array of PSList entries) */





TK_ARRAY_DEFINE(PromArr, PSList);

typedef struct Tk_BindingTable_ {
    Event eventInfo[TK_LASTEVENT];
    				/* Containing the most recent event for every event type. */




    PromArr *promArr;		/* Contains the promoted pattern sequences. */
    Event *curEvent;		/* Pointing to most recent event. */




    ModMask curModMask;		/* Containing the current modifier mask. */
    LookupTables lookupTables;	/* Containing hash tables for fast lookup. */
    Tcl_HashTable objectTable;	/* Used to map from an object to a list of patterns associated with

    				 * that object. Keys are ClientData, values are (PatSeq *). */
    Tcl_Interp *interp;		/* Interpreter in which commands are executed. */

} BindingTable;

/*
 * The following structure represents virtual event table. A virtual event
 * table provides a way to map from platform-specific physical events such as
 * button clicks or key presses to virtual events such as <<Paste>>,
 * <<Close>>, or <<ScrollWindow>>.
 *
 * A virtual event is usually never part of the event stream, but instead is
 * synthesized inline by matching low-level events. However, a virtual event
 * may be generated by platform-specific code or by Tcl commands. In that case,
 * no lookup of the virtual event will need to be done using this table,
 * because the virtual event is actually in the event stream.
 */

typedef struct {
    LookupTables lookupTables;	/* Providing fast lookup tables to lists of pattern sequences. */



    Tcl_HashTable nameTable;	/* Used to map a virtual event name to the array of physical events

    				 * that can trigger it. Keys are the Tk_Uid names of the virtual
				 * events, values are PhysOwned structs. */

} VirtualEventTable;

/*
 * The following structure is used as a key in a patternTable for both binding
 * tables and a virtual event tables.
 *
 * In a binding table, the object field corresponds to the binding tag for the
 * widget whose bindings are being accessed.
 *
 * In a virtual event table, the object field is always NULL. Virtual events
 * are a global definiton and are not tied to a particular binding tag.
 *
 * The same key is used for both types of pattern tables so that the helper
 * functions that traverse and match patterns will work for both binding
 * tables and virtual event tables.
 */

typedef struct {
    ClientData object;		/* For binding table, identifies the binding tag of the object

    				 * (or class of objects) relative to which the event occurred.
				 * For virtual event table, always NULL. */
    unsigned type;		/* Type of event (from X). */
    Detail detail;		/* Additional information, such as keysym, button, Tk_Uid, or zero

    				 * if nothing additional. */
} PatternTableKey;

/*
 * The following structure defines a pattern, which is matched against X
 * events as part of the process of converting X events into Tcl commands.
 *
 * For technical reasons we do not use 'union Detail', although this would
 * be possible, instead 'info' and 'name' are both included.
 */

typedef struct {
    unsigned eventType;		/* Type of X event, e.g. ButtonPress. */
    unsigned count;		/* Multi-event count, e.g. double-clicks, triple-clicks, etc. */
    ModMask modMask;		/* Mask of modifiers that must be present (zero means no modifiers
    				 * are required). */
    Info info;			/* Additional information that must match event. Normally this is zero,

    				 * meaning no additional information must match. For KeyPress and

				 * KeyRelease events, it may be specified to select a particular
				 * keystroke (zero means any keystrokes). For button events, specifies

				 * a particular button (zero means any buttons are OK). */
    Tk_Uid name;		/* Specifies the Tk_Uid of the virtual event name. NULL if not a
    				 * virtual event. */
} TkPattern;

/*
 * The following structure keeps track of all the virtual events that are
 * associated with a particular physical event. It is pointed to by the 'owners'
 * field in a PatSeq in the patternTable of a virtual event table.
 */

TK_PTR_ARRAY_DEFINE(VirtOwners, Tcl_HashEntry); /* define array of hash entries */

/*
 * The following structure defines a pattern sequence, which consists of one
 * or more patterns. In order to trigger, a pattern sequence must match the
 * most recent X events (first pattern to most recent event, next pattern to
 * next event, and so on). It is used as the hash value in a patternTable for
 * both binding tables and virtual event tables.
 *
 * In a binding table, it is the sequence of physical events that make up a
 * binding for an object.
 *
 * In a virtual event table, it is the sequence of physical events that define
 * a virtual event.
 *
 * The same structure is used for both types of pattern tables so that the
 * helper functions that traverse and match patterns will work for both
 * binding tables and virtual event tables.
 */

typedef struct PatSeq {
    unsigned numPats;		/* Number of patterns in sequence (usually 1). */
    unsigned count;		/* Total number of repetition counts, summed over count in TkPattern. */
    unsigned number;		/* Needed for the decision whether a binding is less recently defined
    				 * than another, it is guaranteed that the most recently bound event
				 * has the highest number. */
    unsigned added:1;		/* Is this pattern sequence already added to lookup table? */
    unsigned modMaskUsed:1;	/* Does at least one pattern contain a non-zero modifier mask? */
    DEBUG(unsigned owned:1);	/* For debugging purposes. */
    char *script;		/* Binding script to evaluate when sequence matches (ckalloc()ed) */


    Tcl_Obj* object;		/* Token for object with which binding is associated. For virtual
    				 * event table this is NULL. */
    struct PatSeq *nextSeqPtr;	/* Next in list of all pattern sequences that have the same initial
    				 * pattern. NULL means end of list. */

    Tcl_HashEntry *hPtr;	/* Pointer to hash table entry for the initial pattern. This is the

    				 * head of the list of which nextSeqPtr forms a part. */

    union {
	VirtOwners *owners;	/* In a binding table it has no meaning. In a virtual event table,
				 * identifies the array of virtual events that can be triggered
				 * by this event. */
	struct PatSeq *nextObj;	/* In a binding table, next in list of all pattern sequences for

				 * the same object (NULL for end of list). Needed to implement
				 * Tk_DeleteAllBindings. In a virtual event table it has no meaning. */

    } ptr;
    TkPattern pats[1];		/* Array of "numPats" patterns. Only one element is declared here

    				 * but in actuality enough space will be allocated for "numPats"
				 * patterns (but usually 1). */


} PatSeq;

/*
 * Compute memory size of struct PatSeq with given pattern size.





 * The caller must be sure that pattern size is greater than zero.
 */
#define PATSEQ_MEMSIZE(numPats) (sizeof(PatSeq) + (numPats - 1)*sizeof(TkPattern))


/*
 * Constants that define how close together two events must be in milliseconds
 * or pixels to meet the PAT_NEARBY constraint:
 */

#define NEARBY_PIXELS	5
#define NEARBY_MS	500

/*
 * Needed as "no-number" constant for integers. The value of this constant is
 * outside of integer range (type "int"). (Unfortunatly current version of
 * Tcl/Tk does not provide C99 integer support.)
 */

#define NO_NUMBER (((Tcl_WideInt) (~ (unsigned) 0)) + 1)






/*
 * The following structure is used in the nameTable of a virtual event table
 * to associate a virtual event with all the physical events that can trigger
 * it.
 */


TK_PTR_ARRAY_DEFINE(PhysOwned, PatSeq); /* define array of pattern seqs */




/*
 * One of the following structures exists for each interpreter. This structure
 * keeps track of the current display and screen in the interpreter, so that a
 * command can be invoked whenever the display/screen changes (the command does
 * things like point tk::Priv at a display-specific structure).
 */

typedef struct {
    TkDisplay *curDispPtr;	/* Display for last binding command invoked in this application. */

    int curScreenIndex;		/* Index of screen for last binding command */
    unsigned bindingDepth;	/* Number of active instances of Tk_BindEvent in this application. */

} ScreenInfo;

/*
 * The following structure keeps track of all the information local to the
 * binding package on a per interpreter basis.
 */

typedef struct TkBindInfo_ {
    VirtualEventTable virtualEventTable;
				/* The virtual events that exist in this interpreter. */

    ScreenInfo screenInfo;	/* Keeps track of the current display and screen, so it can be

    				 * restored after a binding has executed. */
    int deleted;		/* 1 if the application has been deleted but the structure has been
    				 * preserved. */
    Time lastEventTime;		/* Needed for time measurement. */
    Time lastCurrentTime;	/* Needed for time measurement. */
} BindInfo;

/*
 * In X11R4 and earlier versions, XStringToKeysym is ridiculously slow. The
 * data structure and hash table below, along with the code that uses them,
 * implement a fast mapping from strings to keysyms. In X11R5 and later
 * releases XStringToKeysym is plenty fast so this stuff isn't needed. The
 * #define REDO_KEYSYM_LOOKUP is normally undefined, so that XStringToKeysym
 * gets used. It can be set in the Makefile to enable the use of the hash
 * table below.
 */

#ifdef REDO_KEYSYM_LOOKUP
typedef struct {
    const char *name;		/* Name of keysym. */
    KeySym value;		/* Numeric identifier for keysym. */
} KeySymInfo;
static const KeySymInfo keyArray[] = {
#ifndef lint
#include "ks_names.h"
#endif
    {NULL, 0}
};
static Tcl_HashTable keySymTable;	/* keyArray hashed by keysym value. */
static Tcl_HashTable nameTable;		/* keyArray hashed by keysym name. */
#endif /* REDO_KEYSYM_LOOKUP */









/*
 * A hash table is kept to map from the string names of event modifiers to
 * information about those modifiers. The structure for storing this
 * information, and the hash table built at initialization time, are defined
 * below.
 */

typedef struct {
    const char *name;	/* Name of modifier. */
    ModMask mask;	/* Button/modifier mask value, such as Button1Mask. */

    unsigned flags;	/* Various flags; see below for definitions. */

} ModInfo;

/*
 * Flags for ModInfo structures:
 *
 * DOUBLE -		Non-zero means duplicate this event, e.g. for double-clicks.

 * TRIPLE -		Non-zero means triplicate this event, e.g. for triple-clicks.

 * QUADRUPLE -		Non-zero means quadruple this event, e.g. for 4-fold-clicks.

 * MULT_CLICKS -	Combination of all of above.
 */

#define DOUBLE		(1<<0)
#define TRIPLE		(1<<1)
#define QUADRUPLE	(1<<2)
#define MULT_CLICKS	(DOUBLE|TRIPLE|QUADRUPLE)

static const ModInfo modArray[] = {
    {"Control",		ControlMask,	0},
    {"Shift",		ShiftMask,	0},
    {"Lock",		LockMask,	0},
    {"Meta",		META_MASK,	0},
    {"M",		META_MASK,	0},
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 * This module also keeps a hash table mapping from event names to information
 * about those events. The structure, an array to use to initialize the hash
 * table, and the hash table are all defined below.
 */

typedef struct {
    const char *name;	/* Name of event. */
    int type;			/* Event type for X, such as ButtonPress. */
    int eventMask;		/* Mask bits (for XSelectInput) for this event
				 * type. */
} EventInfo;

/*
 * Note: some of the masks below are an OR-ed combination of several masks.
 * This is necessary because X doesn't report up events unless you also ask
 * for down events. Also, X doesn't report button state in motion events
 * unless you've asked about button events.
 */

static const EventInfo eventArray[] = {
    {"Key",		KeyPress,		KeyPressMask},
    {"KeyPress",	KeyPress,		KeyPressMask},
    {"KeyRelease",	KeyRelease,		KeyPressMask|KeyReleaseMask},
    {"Button",		ButtonPress,		ButtonPressMask},
    {"ButtonPress",	ButtonPress,		ButtonPressMask},
    {"ButtonRelease",	ButtonRelease,
	    ButtonPressMask|ButtonReleaseMask},
    {"Motion",		MotionNotify,
	    ButtonPressMask|PointerMotionMask},
    {"Enter",		EnterNotify,		EnterWindowMask},
    {"Leave",		LeaveNotify,		LeaveWindowMask},
    {"FocusIn",		FocusIn,		FocusChangeMask},
    {"FocusOut",	FocusOut,		FocusChangeMask},
    {"Expose",		Expose,			ExposureMask},
    {"Visibility",	VisibilityNotify,	VisibilityChangeMask},
    {"Destroy",		DestroyNotify,		StructureNotifyMask},






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 * This module also keeps a hash table mapping from event names to information
 * about those events. The structure, an array to use to initialize the hash
 * table, and the hash table are all defined below.
 */

typedef struct {
    const char *name;	/* Name of event. */
    unsigned type;	/* Event type for X, such as ButtonPress. */
    unsigned eventMask;	/* Mask bits (for XSelectInput) for this event type. */

} EventInfo;

/*
 * Note: some of the masks below are an OR-ed combination of several masks.
 * This is necessary because X doesn't report up events unless you also ask
 * for down events. Also, X doesn't report button state in motion events
 * unless you've asked about button events.
 */

static const EventInfo eventArray[] = {
    {"Key",		KeyPress,		KeyPressMask},
    {"KeyPress",	KeyPress,		KeyPressMask},
    {"KeyRelease",	KeyRelease,		KeyPressMask|KeyReleaseMask},
    {"Button",		ButtonPress,		ButtonPressMask},
    {"ButtonPress",	ButtonPress,		ButtonPressMask},
    {"ButtonRelease",	ButtonRelease,		ButtonPressMask|ButtonReleaseMask},

    {"Motion",		MotionNotify,		ButtonPressMask|PointerMotionMask},

    {"Enter",		EnterNotify,		EnterWindowMask},
    {"Leave",		LeaveNotify,		LeaveWindowMask},
    {"FocusIn",		FocusIn,		FocusChangeMask},
    {"FocusOut",	FocusOut,		FocusChangeMask},
    {"Expose",		Expose,			ExposureMask},
    {"Visibility",	VisibilityNotify,	VisibilityChangeMask},
    {"Destroy",		DestroyNotify,		StructureNotifyMask},
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    {"Create",		CreateNotify,		SubstructureNotifyMask},
    {"MapRequest",	MapRequest,		SubstructureRedirectMask},
    {"ResizeRequest",	ResizeRequest,		ResizeRedirectMask},
    {NULL,		0,			0}
};
static Tcl_HashTable eventTable;



/*
 * The defines and table below are used to classify events into various
 * groups. The reason for this is that logically identical fields (e.g.
 * "state") appear at different places in different types of events. The
 * classification masks can be used to figure out quickly where to extract
 * information from events.
 */

#define KEY			0x1
#define BUTTON			0x2
#define MOTION			0x4
#define CROSSING		0x8
#define FOCUS			0x10
#define EXPOSE			0x20
#define VISIBILITY		0x40
#define CREATE			0x80
#define DESTROY			0x100
#define UNMAP			0x200
#define MAP			0x400
#define REPARENT		0x800
#define CONFIG			0x1000
#define GRAVITY			0x2000
#define CIRC			0x4000
#define PROP			0x8000
#define COLORMAP		0x10000
#define VIRTUAL			0x20000
#define ACTIVATE		0x40000
#define	MAPREQ			0x80000
#define	CONFIGREQ		0x100000
#define	RESIZEREQ		0x200000
#define CIRCREQ			0x400000

#define KEY_BUTTON_MOTION_VIRTUAL	(KEY|BUTTON|MOTION|VIRTUAL)
#define KEY_BUTTON_MOTION_CROSSING	(KEY|BUTTON|MOTION|VIRTUAL|CROSSING)

static const int flagArray[TK_LASTEVENT] = {
   /* Not used */		0,
   /* Not used */		0,






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    {"Create",		CreateNotify,		SubstructureNotifyMask},
    {"MapRequest",	MapRequest,		SubstructureRedirectMask},
    {"ResizeRequest",	ResizeRequest,		ResizeRedirectMask},
    {NULL,		0,			0}
};
static Tcl_HashTable eventTable;

static int eventArrayIndex[TK_LASTEVENT];

/*
 * The defines and table below are used to classify events into various
 * groups. The reason for this is that logically identical fields (e.g.
 * "state") appear at different places in different types of events. The
 * classification masks can be used to figure out quickly where to extract
 * information from events.
 */

#define KEY			(1<<0)
#define BUTTON			(1<<1)
#define MOTION			(1<<2)
#define CROSSING		(1<<3)
#define FOCUS			(1<<4)
#define EXPOSE			(1<<5)
#define VISIBILITY		(1<<6)
#define CREATE			(1<<7)
#define DESTROY			(1<<8)
#define UNMAP			(1<<9)
#define MAP			(1<<10)
#define REPARENT		(1<<11)
#define CONFIG			(1<<12)
#define GRAVITY			(1<<13)
#define CIRC			(1<<14)
#define PROP			(1<<15)
#define COLORMAP		(1<<16)
#define VIRTUAL			(1<<17)
#define ACTIVATE		(1<<18)
#define	MAPREQ			(1<<19)
#define	CONFIGREQ		(1<<20)
#define	RESIZEREQ		(1<<21)
#define CIRCREQ			(1<<22)

#define KEY_BUTTON_MOTION_VIRTUAL	(KEY|BUTTON|MOTION|VIRTUAL)
#define KEY_BUTTON_MOTION_CROSSING	(KEY|BUTTON|MOTION|VIRTUAL|CROSSING)

static const int flagArray[TK_LASTEVENT] = {
   /* Not used */		0,
   /* Not used */		0,
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/*
 * The following table is used to map between the location where an generated
 * event should be queued and the string used to specify the location.
 */

static const TkStateMap queuePosition[] = {
    {-1,			"now"},
    {TCL_QUEUE_HEAD,		"head"},
    {TCL_QUEUE_MARK,		"mark"},
    {TCL_QUEUE_TAIL,		"tail"},
    {-2,			NULL}
};

/*
 * The following tables are used as a two-way map between X's internal numeric
 * values for fields in an XEvent and the strings used in Tcl. The tables are
 * used both when constructing an XEvent from user input and when providing
 * data from an XEvent to the user.






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/*
 * The following table is used to map between the location where an generated
 * event should be queued and the string used to specify the location.
 */

static const TkStateMap queuePosition[] = {
    {-1,		"now"},
    {TCL_QUEUE_HEAD,	"head"},
    {TCL_QUEUE_MARK,	"mark"},
    {TCL_QUEUE_TAIL,	"tail"},
    {-2,		NULL}
};

/*
 * The following tables are used as a two-way map between X's internal numeric
 * values for fields in an XEvent and the strings used in Tcl. The tables are
 * used both when constructing an XEvent from user input and when providing
 * data from an XEvent to the user.
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    {NotifyPointer,		"NotifyPointer"},
    {NotifyPointerRoot,		"NotifyPointerRoot"},
    {NotifyDetailNone,		"NotifyDetailNone"},
    {-1, NULL}
};

static const TkStateMap circPlace[] = {
    {PlaceOnTop,		"PlaceOnTop"},
    {PlaceOnBottom,		"PlaceOnBottom"},
    {-1, NULL}
};

static const TkStateMap visNotify[] = {
    {VisibilityUnobscured,	  "VisibilityUnobscured"},
    {VisibilityPartiallyObscured, "VisibilityPartiallyObscured"},
    {VisibilityFullyObscured,	  "VisibilityFullyObscured"},
    {-1, NULL}
};

static const TkStateMap configureRequestDetail[] = {
    {None,		"None"},
    {Above,		"Above"},
    {Below,		"Below"},
    {BottomIf,		"BottomIf"},
    {TopIf,		"TopIf"},
    {Opposite,		"Opposite"},
    {-1, NULL}
};

static const TkStateMap propNotify[] = {
    {PropertyNewValue,	"NewValue"},
    {PropertyDelete,	"Delete"},
    {-1, NULL}
};







/*
 * Prototypes for local functions defined in this file:
 */

static void		ChangeScreen(Tcl_Interp *interp, char *dispName,
			    int screenIndex);
static int		CreateVirtualEvent(Tcl_Interp *interp,
			    VirtualEventTable *vetPtr, char *virtString,
			    const char *eventString);
static int		DeleteVirtualEvent(Tcl_Interp *interp,
			    VirtualEventTable *vetPtr, char *virtString,
			    const char *eventString);
static void		DeleteVirtualEventTable(VirtualEventTable *vetPtr);
static void		ExpandPercents(TkWindow *winPtr, const char *before,
			    XEvent *eventPtr,KeySym keySym,
			    unsigned int scriptCount, Tcl_DString *dsPtr);
static PatSeq *		FindSequence(Tcl_Interp *interp,
			    Tcl_HashTable *patternTablePtr, ClientData object,
			    const char *eventString, int create,
			    int allowVirtual, unsigned long *maskPtr);
static void		GetAllVirtualEvents(Tcl_Interp *interp,
			    VirtualEventTable *vetPtr);
static char *		GetField(char *p, char *copy, int size);
static Tcl_Obj *	GetPatternObj(PatSeq *psPtr);
static int		GetVirtualEvent(Tcl_Interp *interp,
			    VirtualEventTable *vetPtr, Tcl_Obj *virtName);
static Tk_Uid		GetVirtualEventUid(Tcl_Interp *interp,
			    char *virtString);
static int		HandleEventGenerate(Tcl_Interp *interp, Tk_Window main,
			    int objc, Tcl_Obj *const objv[]);
static void		InitVirtualEventTable(VirtualEventTable *vetPtr);
static PatSeq *		MatchPatterns(TkDisplay *dispPtr,
			    BindingTable *bindPtr, PatSeq *psPtr,
			    PatSeq *bestPtr, ClientData *objectPtr,

			    PatSeq **sourcePtrPtr);
static int		NameToWindow(Tcl_Interp *interp, Tk_Window main,
			    Tcl_Obj *objPtr, Tk_Window *tkwinPtr);
static int		ParseEventDescription(Tcl_Interp *interp,
			    const char **eventStringPtr, TkPattern *patPtr,
			    unsigned long *eventMaskPtr);
static void		DoWarp(ClientData clientData);

























































































































































































































































































































































































































































































/*
 *---------------------------------------------------------------------------
 *
 * TkBindInit --
 *
 *	This function is called when an application is created. It initializes
 *	all the structures used by bindings and virtual events. It must be
 *	called before any other functions in this file are called.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Memory allocated.
 *
 *---------------------------------------------------------------------------
 */








void
TkBindInit(
    TkMainInfo *mainPtr)	/* The newly created application. */
{
    BindInfo *bindInfoPtr;


    if (sizeof(XEvent) < sizeof(XVirtualEvent)) {
	Tcl_Panic("TkBindInit: virtual events can't be supported");

    }









































































    /*
     * Initialize the static data structures used by the binding package. They
     * are only initialized once, no matter how many interps are created.
     */

    if (!initialized) {
	Tcl_MutexLock(&bindMutex);
	if (!initialized) {
	    Tcl_HashEntry *hPtr;
	    const ModInfo *modPtr;
	    const EventInfo *eiPtr;
	    int newEntry;

#ifdef REDO_KEYSYM_LOOKUP
	    const KeySymInfo *kPtr;

	    Tcl_InitHashTable(&keySymTable, TCL_STRING_KEYS);
	    Tcl_InitHashTable(&nameTable, TCL_ONE_WORD_KEYS);
	    for (kPtr = keyArray; kPtr->name != NULL; kPtr++) {
		hPtr = Tcl_CreateHashEntry(&keySymTable, kPtr->name, &newEntry);
		Tcl_SetHashValue(hPtr, kPtr->value);
		hPtr = Tcl_CreateHashEntry(&nameTable, (char *) kPtr->value,
			&newEntry);
		if (newEntry) {
		    Tcl_SetHashValue(hPtr, kPtr->name);
		}
	    }
#endif /* REDO_KEYSYM_LOOKUP */













	    Tcl_InitHashTable(&modTable, TCL_STRING_KEYS);
	    for (modPtr = modArray; modPtr->name != NULL; modPtr++) {
		hPtr = Tcl_CreateHashEntry(&modTable, modPtr->name, &newEntry);
		Tcl_SetHashValue(hPtr, modPtr);
	    }

	    Tcl_InitHashTable(&eventTable, TCL_STRING_KEYS);
	    for (eiPtr = eventArray; eiPtr->name != NULL; eiPtr++) {
		hPtr = Tcl_CreateHashEntry(&eventTable, eiPtr->name, &newEntry);
		Tcl_SetHashValue(hPtr, eiPtr);
	    }

	    initialized = 1;
	}
	Tcl_MutexUnlock(&bindMutex);
    }

    mainPtr->bindingTable = Tk_CreateBindingTable(mainPtr->interp);

    bindInfoPtr = ckalloc(sizeof(BindInfo));
    InitVirtualEventTable(&bindInfoPtr->virtualEventTable);
    bindInfoPtr->screenInfo.curDispPtr = NULL;
    bindInfoPtr->screenInfo.curScreenIndex = -1;
    bindInfoPtr->screenInfo.bindingDepth = 0;
    bindInfoPtr->deleted = 0;


    mainPtr->bindInfo = bindInfoPtr;


    TkpInitializeMenuBindings(mainPtr->interp, mainPtr->bindingTable);
}

/*
 *---------------------------------------------------------------------------
 *






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    {NotifyPointer,		"NotifyPointer"},
    {NotifyPointerRoot,		"NotifyPointerRoot"},
    {NotifyDetailNone,		"NotifyDetailNone"},
    {-1, NULL}
};

static const TkStateMap circPlace[] = {
    {PlaceOnTop,	"PlaceOnTop"},
    {PlaceOnBottom,	"PlaceOnBottom"},
    {-1, NULL}
};

static const TkStateMap visNotify[] = {
    {VisibilityUnobscured,	  "VisibilityUnobscured"},
    {VisibilityPartiallyObscured, "VisibilityPartiallyObscured"},
    {VisibilityFullyObscured,	  "VisibilityFullyObscured"},
    {-1, NULL}
};

static const TkStateMap configureRequestDetail[] = {
    {None,	"None"},
    {Above,	"Above"},
    {Below,	"Below"},
    {BottomIf,	"BottomIf"},
    {TopIf,	"TopIf"},
    {Opposite,	"Opposite"},
    {-1, NULL}
};

static const TkStateMap propNotify[] = {
    {PropertyNewValue,	"NewValue"},
    {PropertyDelete,	"Delete"},
    {-1, NULL}
};

DEBUG(static int countTableItems = 0);
DEBUG(static int countEntryItems = 0);
DEBUG(static int countListItems = 0);
DEBUG(static int countBindItems = 0);
DEBUG(static int countSeqItems = 0);

/*
 * Prototypes for local functions defined in this file:
 */

static void		ChangeScreen(Tcl_Interp *interp, char *dispName, int screenIndex);

static int		CreateVirtualEvent(Tcl_Interp *interp, VirtualEventTable *vetPtr,

			    char *virtString, const char *eventString);
static int		DeleteVirtualEvent(Tcl_Interp *interp, VirtualEventTable *vetPtr,

			    char *virtString, const char *eventString);
static void		DeleteVirtualEventTable(VirtualEventTable *vetPtr);
static void		ExpandPercents(TkWindow *winPtr, const char *before, Event *eventPtr,

			    unsigned scriptCount, Tcl_DString *dsPtr);
static PatSeq *		FindSequence(Tcl_Interp *interp, LookupTables *lookupTables,

			    ClientData object, const char *eventString, int create,
			    int allowVirtual, EventMask *maskPtr);
static void		GetAllVirtualEvents(Tcl_Interp *interp, VirtualEventTable *vetPtr);

static const char *	GetField(const char *p, char *copy, unsigned size);
static Tcl_Obj *	GetPatternObj(const PatSeq *psPtr);
static int		GetVirtualEvent(Tcl_Interp *interp, VirtualEventTable *vetPtr,
			    Tcl_Obj *virtName);
static Tk_Uid		GetVirtualEventUid(Tcl_Interp *interp, char *virtString);

static int		HandleEventGenerate(Tcl_Interp *interp, Tk_Window main,
			    int objc, Tcl_Obj *const objv[]);
static void		InitVirtualEventTable(VirtualEventTable *vetPtr);
static PatSeq *		MatchPatterns(TkDisplay *dispPtr, Tk_BindingTable bindPtr, PSList *psList,


			    PSList *psSuccList, unsigned patIndex, const Event *eventPtr,
			    ClientData object, PatSeq **physPtrPtr);
static int		NameToWindow(Tcl_Interp *interp, Tk_Window main,
			    Tcl_Obj *objPtr, Tk_Window *tkwinPtr);
static unsigned		ParseEventDescription(Tcl_Interp *interp, const char **eventStringPtr,
			    TkPattern *patPtr, EventMask *eventMaskPtr);

static void		DoWarp(ClientData clientData);
static PSList *		GetLookupForEvent(LookupTables* lookupPtr, const Event *eventPtr,
			    Tcl_Obj *object, int onlyConsiderDetailedEvents);
static void		ClearLookupTable(LookupTables *lookupTables, ClientData object);
static void		ClearPromotionLists(Tk_BindingTable bindPtr, ClientData object);
static PSEntry *	MakeListEntry(PSList *pool, PatSeq *psPtr, int needModMasks);
static void		RemovePatSeqFromLookup(LookupTables *lookupTables, PatSeq *psPtr);
static void		RemovePatSeqFromPromotionLists(Tk_BindingTable bindPtr, PatSeq *psPtr);
static PatSeq *		DeletePatSeq(PatSeq *psPtr);
static void		InsertPatSeq(LookupTables *lookupTables, PatSeq *psPtr);
#if SUPPORT_DEBUGGING
void			TkpDumpPS(const PatSeq *psPtr);
void			TkpDumpPSList(const PSList *psList);
#endif

/*
 * Some useful helper functions.
 */
#ifdef SUPPORT_DEBUGGING
static int BindCount = 0;
#endif

static unsigned Max(unsigned a, unsigned b) { return a < b ? b : a; }
static int Abs(int n) { return n < 0 ? -n : n; }
static int IsOdd(int n) { return n & 1; }

static int TestNearbyTime(int lhs, int rhs) { return Abs(lhs - rhs) <= NEARBY_MS; }
static int TestNearbyCoords(int lhs, int rhs) { return Abs(lhs - rhs) <= NEARBY_PIXELS; }

static int
IsSubsetOf(
    ModMask lhsMask,	/* this is a subset */
    ModMask rhsMask)	/* of this bit field? */
{
    return (lhsMask & rhsMask) == lhsMask;
}

static const char*
SkipSpaces(
    const char* s)
{
    assert(s);
    while (isspace(UCHAR(*s)))
	++s;
    return s;
}

static const char*
SkipFieldDelims(
    const char* s)
{
    assert(s);
    while (*s == '-' || isspace(UCHAR(*s))) {
	++s;
    }
    return s;
}

static unsigned
GetButtonNumber(
    const char *field)
{
    assert(field);
    return (field[0] >= '1' && field[0] <= '5' && field[1] == '\0') ? field[0] - '0' : 0;
}

static Time
CurrentTimeInMilliSecs()
{
    Tcl_Time now;
    Tcl_GetTime(&now);
    return ((Time) now.sec)*1000 + ((Time) now.usec)/1000;
}

static Info
GetInfo(
    const PatSeq *psPtr,
    unsigned index)
{
    assert(psPtr);
    assert(index < psPtr->numPats);

    return psPtr->pats[index].info;
}

static unsigned
GetCount(
    const PatSeq *psPtr,
    unsigned index)
{
    assert(psPtr);
    assert(index < psPtr->numPats);

    return psPtr->pats[index].count;
}

static int
CountSpecialized(
    const PatSeq *fstMatchPtr,
    const PatSeq *sndMatchPtr)
{
    int fstCount = 0;
    int sndCount = 0;
    unsigned i;

    assert(fstMatchPtr);
    assert(sndMatchPtr);

    for (i = 0; i < fstMatchPtr->numPats; ++i) {
	if (GetInfo(fstMatchPtr, i)) { fstCount += GetCount(fstMatchPtr, i); }
    }
    for (i = 0; i < sndMatchPtr->numPats; ++i) {
	if (GetInfo(sndMatchPtr, i)) { sndCount += GetCount(sndMatchPtr, i); }
    }

    return sndCount - fstCount;
}

static int
MatchEventNearby(
    const XEvent *lhs,	/* previous button event */
    const XEvent *rhs)	/* current button event */
{
    assert(lhs);
    assert(rhs);
    assert(lhs->type == ButtonPress || lhs->type == ButtonRelease);
    assert(lhs->type == rhs->type);

    /* assert: lhs->xbutton.time <= rhs->xbutton.time */

    return TestNearbyTime(rhs->xbutton.time, lhs->xbutton.time)
	    && TestNearbyCoords(rhs->xbutton.x_root, lhs->xbutton.x_root)
	    && TestNearbyCoords(rhs->xbutton.y_root, lhs->xbutton.y_root);
}

static int
MatchEventRepeat(
    const XEvent *lhs,	/* previous key event */
    const XEvent *rhs)	/* current key event */
{
    assert(lhs);
    assert(rhs);
    assert(lhs->type == KeyPress || lhs->type == KeyRelease);
    assert(lhs->type == rhs->type);

    /* assert: lhs->xkey.time <= rhs->xkey.time */
    return TestNearbyTime(rhs->xkey.time, lhs->xkey.time);
}

static void
FreePatSeq(
    PatSeq *psPtr)
{
    assert(psPtr);
    assert(!psPtr->owned);
    DEBUG(MARK_PSENTRY(psPtr));
    ckfree(psPtr->script);
    if (!psPtr->object) {
	VirtOwners_Free(&psPtr->ptr.owners);
    }
    ckfree(psPtr);
    DEBUG(countSeqItems -= 1);
}

static void
RemoveListEntry(
    PSList *pool,
    PSEntry *psEntry)
{
    assert(pool);
    assert(psEntry);

    if (PSModMaskArr_Capacity(psEntry->lastModMaskArr) > MAX_MOD_MASK_ARR_SIZE) {
	PSModMaskArr_Free(&psEntry->lastModMaskArr);
    }
    PSList_Remove(psEntry);
    PSList_Append(pool, psEntry);
}

static void
ClearList(
    PSList *psList,
    PSList *pool,
    ClientData object)
{
    assert(psList);
    assert(pool);

    if (object) {
	PSEntry *psEntry;
	PSEntry *psNext;

	for (psEntry = PSList_First(psList); psEntry; psEntry = psNext) {
	    psNext = PSList_Next(psEntry);
	    if (psEntry->psPtr->object == object) {
		RemoveListEntry(pool, psEntry);
	    }
	}
    } else {
	PSList_Move(pool, psList);
    }
}

static PSEntry *
FreePatSeqEntry(
    PSList *pool,
    PSEntry *entry)
{
    PSEntry *next = PSList_Next(entry);
    PSModMaskArr_Free(&entry->lastModMaskArr);
    ckfree(entry);
    return next;
}

static unsigned
ResolveModifiers(
    TkDisplay *dispPtr,
    unsigned modMask)
{
    assert(dispPtr);

    if (dispPtr->metaModMask) {
	if (modMask & META_MASK) {
	    modMask &= ~(ModMask)META_MASK;
	    modMask |= dispPtr->metaModMask;
	}
    }
    if (dispPtr->altModMask) {
	if (modMask & ALT_MASK) {
	    modMask &= ~(ModMask)ALT_MASK;
	    modMask |= dispPtr->altModMask;
	}
    }

    return modMask;
}

static int
ButtonNumberFromState(
    unsigned state)
{
    if (!(state & ALL_BUTTONS)) { return 0; }
    if (state & Button1Mask) { return 1; }
    if (state & Button2Mask) { return 2; }
    if (state & Button3Mask) { return 3; }
    if (state & Button4Mask) { return 4; }
    return 5;
}

static void
SetupPatternKey(
    PatternTableKey *key,
    const PatSeq *psPtr)
{
    const TkPattern *patPtr;

    assert(key);
    assert(psPtr);

    /* otherwise on some systems the key contains uninitialized bytes */
    memset(key, 0, sizeof(PatternTableKey));

    patPtr = psPtr->pats;
    assert(!patPtr->info || !patPtr->name);

    key->object = psPtr->object;
    key->type = patPtr->eventType;
    if (patPtr->info) {
	key->detail.info = patPtr->info;
    } else {
	key->detail.name = patPtr->name;
    }
}

/*
 *--------------------------------------------------------------
 *
 * MakeListEntry --
 *
 *	Makes new entry item for lookup table. We are using a
 *	pool of items, this avoids superfluous memory allocation/
 *	deallocation.
 *
 * Results:
 *	New entry item.
 *
 * Side effects:
 *	Memory allocated.
 *
 *--------------------------------------------------------------
 */

static PSEntry *
MakeListEntry(
    PSList *pool,
    PatSeq *psPtr,
    int needModMasks)
{
    PSEntry *newEntry = NULL;

    assert(pool);
    assert(psPtr);
    assert(psPtr->numPats > 0);
    assert(TEST_PSENTRY(psPtr));

    if (PSList_IsEmpty(pool)) {
	newEntry = ckalloc(sizeof(PSEntry));
	newEntry->lastModMaskArr = NULL;
	DEBUG(countEntryItems += 1);
    } else {
	newEntry = PSList_First(pool);
	PSList_RemoveHead(pool);
    }

    if (!needModMasks) {
	PSModMaskArr_SetSize(newEntry->lastModMaskArr, 0);
    } else {
	if (PSModMaskArr_Capacity(newEntry->lastModMaskArr) < psPtr->numPats - 1) {
	    PSModMaskArr_Resize(&newEntry->lastModMaskArr, psPtr->numPats - 1);
	}
	PSModMaskArr_SetSize(newEntry->lastModMaskArr, psPtr->numPats - 1);
    }

    newEntry->psPtr = psPtr;
    newEntry->window = None;
    newEntry->expired = 0;
    newEntry->keepIt = 1;
    newEntry->count = 1;
    DEBUG(psPtr->owned = 0);

    return newEntry;
}

/*
 *--------------------------------------------------------------
 *
 * GetLookupForEvent --
 *
 *	Get specific pattern sequence table for given event.
 *
 * Results:
 *	Specific pattern sequence table for given event.
 *
 * Side effects:
 *	None.
 *
 *--------------------------------------------------------------
 */

static PSList *
GetLookupForEvent(
    LookupTables* lookupTables,
    const Event *eventPtr,
    Tcl_Obj *object,
    int onlyConsiderDetailedEvents)
{
    PatternTableKey key;
    Tcl_HashEntry *hPtr;

    assert(lookupTables);
    assert(eventPtr);

    /* otherwise on some systems the key contains uninitialized bytes */
    memset(&key, 0, sizeof(PatternTableKey));

    if (onlyConsiderDetailedEvents) {
	switch (eventPtr->xev.type) {
	case ButtonPress:   /* fallthru */
	case ButtonRelease: key.detail.info = eventPtr->xev.xbutton.button; break;
	case MotionNotify:  key.detail.info = ButtonNumberFromState(eventPtr->xev.xmotion.state); break;
	case KeyPress:      /* fallthru */
	case KeyRelease:    key.detail.info = eventPtr->detail.info; break;
	case VirtualEvent:  key.detail.name = eventPtr->detail.name; break;
	}
	if (!key.detail.name) {
	    assert(!key.detail.info);
	    return NULL;
	}
    }

    key.object = object;
    key.type = eventPtr->xev.type;
    hPtr = Tcl_FindHashEntry(&lookupTables->listTable, (char *) &key);
    return hPtr ? Tcl_GetHashValue(hPtr) : NULL;
}

/*
 *--------------------------------------------------------------
 *
 * ClearLookupTable --
 *
 *	Clear lookup table in given binding table, but only those
 *	bindings associated to given object. If object is NULL
 *	then remove all entries.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	None.
 *
 *--------------------------------------------------------------
 */
static void
ClearLookupTable(
    LookupTables *lookupTables,
    ClientData object)
{
    Tcl_HashSearch search;
    Tcl_HashEntry *hPtr;
    Tcl_HashEntry *nextPtr;
    PSList *pool = &lookupTables->entryPool;

    assert(lookupTables);

    for (hPtr = Tcl_FirstHashEntry(&lookupTables->listTable, &search); hPtr; hPtr = nextPtr) {
	PSList *psList;

	nextPtr = Tcl_NextHashEntry(&search);

	if (object) {
	    const PatternTableKey *key = Tcl_GetHashKey(&lookupTables->listTable, hPtr);
	    if (key->object != object) {
		continue;
	    }
	    Tcl_DeleteHashEntry(hPtr);
	}

	psList = Tcl_GetHashValue(hPtr);
	PSList_Move(pool, psList);
	ckfree(psList);
	DEBUG(countListItems -= 1);
    }
}

/*
 *--------------------------------------------------------------
 *
 * ClearPromotionLists --
 *
 *	Clear all the lists holding the promoted pattern
 *	sequences, which belongs to given object. If object
 *	is NULL then remove all patterns.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	None.
 *
 *--------------------------------------------------------------
 */

static void
ClearPromotionLists(
    Tk_BindingTable bindPtr,
    ClientData object)
{
    unsigned newArraySize = 0;
    unsigned i;

    assert(bindPtr);

    for (i = 0; i < PromArr_Size(bindPtr->promArr); ++i) {
	PSList *psList = PromArr_Get(bindPtr->promArr, i);
	ClearList(psList, &bindPtr->lookupTables.entryPool, object);
	if (!PSList_IsEmpty(psList)) {
	    newArraySize = i + 1;
	}
    }

    PromArr_SetSize(bindPtr->promArr, newArraySize);
}

/*
 *---------------------------------------------------------------------------
 *
 * TkBindInit --
 *
 *	This function is called when an application is created. It initializes
 *	all the structures used by bindings and virtual events. It must be
 *	called before any other functions in this file are called.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Memory allocated.
 *
 *---------------------------------------------------------------------------
 */

/*
 * Windoze compiler does not allow the definition of these static variables inside a function,
 * otherwise this should belong to function TkBindInit().
 */
TCL_DECLARE_MUTEX(bindMutex);
static int initialized = 0;

void
TkBindInit(
    TkMainInfo *mainPtr)	/* The newly created application. */
{
    BindInfo *bindInfoPtr;

    assert(mainPtr);

    /* otherwise virtual events can't be supported */
    assert(sizeof(XEvent) >= sizeof(XVirtualEvent));

    /* type of TkPattern.info is well defined? */
    assert(sizeof(Info) >= sizeof(KeySym));
    assert(sizeof(Info) >= sizeof(unsigned));

    /* ensure that our matching algorithm is working (when testing detail) */
    assert(sizeof(Detail) == sizeof(Tk_Uid));

    /* test that constant NO_NUMBER is indeed out of integer range */
    assert(sizeof(NO_NUMBER) > sizeof(int));
    assert(((int) NO_NUMBER) == 0 && NO_NUMBER != 0);

    /* test expected indices of Button1..Button5, otherwise our button handling is not working */
    assert(Button1 == 1 && Button2 == 2 && Button3 == 3 && Button4 == 4 && Button5 == 5);
    assert(Button2Mask == (Button1Mask << 1));
    assert(Button3Mask == (Button1Mask << 2));
    assert(Button4Mask == (Button1Mask << 3));
    assert(Button5Mask == (Button1Mask << 4));

    /* test expected values of button motion masks, otherwise our button handling is not working */
    assert(Button1MotionMask == Button1Mask);
    assert(Button2MotionMask == Button2Mask);
    assert(Button3MotionMask == Button3Mask);
    assert(Button4MotionMask == Button4Mask);
    assert(Button5MotionMask == Button5Mask);

    /* because we expect zero if keySym is empty */
    assert(NoSymbol == 0L);

    /* this must be a union, not a struct, otherwise comparison with NULL will not work */
    assert(Tk_Offset(Detail, name) == Tk_Offset(Detail, info));

    /* we use some constraints about X*Event */
    assert(Tk_Offset(XButtonEvent, time) == Tk_Offset(XMotionEvent, time));
    assert(Tk_Offset(XButtonEvent, x_root) == Tk_Offset(XMotionEvent, x_root));
    assert(Tk_Offset(XButtonEvent, y_root) == Tk_Offset(XMotionEvent, y_root));
    assert(Tk_Offset(XCreateWindowEvent, border_width) == Tk_Offset(XConfigureEvent, border_width));
    assert(Tk_Offset(XCreateWindowEvent, width) == Tk_Offset(XConfigureEvent, width));
    assert(Tk_Offset(XCreateWindowEvent, window) == Tk_Offset(XCirculateRequestEvent, window));
    assert(Tk_Offset(XCreateWindowEvent, window) == Tk_Offset(XConfigureEvent, window));
    assert(Tk_Offset(XCreateWindowEvent, window) == Tk_Offset(XGravityEvent, window));
    assert(Tk_Offset(XCreateWindowEvent, window) == Tk_Offset(XMapEvent, window));
    assert(Tk_Offset(XCreateWindowEvent, window) == Tk_Offset(XReparentEvent, window));
    assert(Tk_Offset(XCreateWindowEvent, window) == Tk_Offset(XUnmapEvent, window));
    assert(Tk_Offset(XCreateWindowEvent, x) == Tk_Offset(XConfigureEvent, x));
    assert(Tk_Offset(XCreateWindowEvent, x) == Tk_Offset(XGravityEvent, x));
    assert(Tk_Offset(XCreateWindowEvent, y) == Tk_Offset(XConfigureEvent, y));
    assert(Tk_Offset(XCreateWindowEvent, y) == Tk_Offset(XGravityEvent, y));
    assert(Tk_Offset(XCrossingEvent, time) == Tk_Offset(XEnterWindowEvent, time));
    assert(Tk_Offset(XCrossingEvent, time) == Tk_Offset(XLeaveWindowEvent, time));
    assert(Tk_Offset(XCrossingEvent, time) == Tk_Offset(XKeyEvent, time));
    assert(Tk_Offset(XKeyEvent, root) == Tk_Offset(XButtonEvent, root));
    assert(Tk_Offset(XKeyEvent, root) == Tk_Offset(XCrossingEvent, root));
    assert(Tk_Offset(XKeyEvent, root) == Tk_Offset(XMotionEvent, root));
    assert(Tk_Offset(XKeyEvent, state) == Tk_Offset(XButtonEvent, state));
    assert(Tk_Offset(XKeyEvent, state) == Tk_Offset(XMotionEvent, state));
    assert(Tk_Offset(XKeyEvent, subwindow) == Tk_Offset(XButtonEvent, subwindow));
    assert(Tk_Offset(XKeyEvent, subwindow) == Tk_Offset(XCrossingEvent, subwindow));
    assert(Tk_Offset(XKeyEvent, subwindow) == Tk_Offset(XMotionEvent, subwindow));
    assert(Tk_Offset(XKeyEvent, time) == Tk_Offset(XButtonEvent, time));
    assert(Tk_Offset(XKeyEvent, time) == Tk_Offset(XMotionEvent, time));
    assert(Tk_Offset(XKeyEvent, x) == Tk_Offset(XButtonEvent, x));
    assert(Tk_Offset(XKeyEvent, x) == Tk_Offset(XCrossingEvent, x));
    assert(Tk_Offset(XKeyEvent, x) == Tk_Offset(XMotionEvent, x));
    assert(Tk_Offset(XKeyEvent, x_root) == Tk_Offset(XButtonEvent, x_root));
    assert(Tk_Offset(XKeyEvent, x_root) == Tk_Offset(XCrossingEvent, x_root));
    assert(Tk_Offset(XKeyEvent, x_root) == Tk_Offset(XMotionEvent, x_root));
    assert(Tk_Offset(XKeyEvent, y) == Tk_Offset(XButtonEvent, y));
    assert(Tk_Offset(XKeyEvent, y) == Tk_Offset(XCrossingEvent, y));
    assert(Tk_Offset(XKeyEvent, y) == Tk_Offset(XMotionEvent, y));
    assert(Tk_Offset(XKeyEvent, y_root) == Tk_Offset(XButtonEvent, y_root));
    assert(Tk_Offset(XKeyEvent, y_root) == Tk_Offset(XCrossingEvent, y_root));
    assert(Tk_Offset(XKeyEvent, y_root) == Tk_Offset(XMotionEvent, y_root));

    /*
     * Initialize the static data structures used by the binding package. They
     * are only initialized once, no matter how many interps are created.
     */

    if (!initialized) {
	Tcl_MutexLock(&bindMutex);
	if (!initialized) {
	    Tcl_HashEntry *hPtr;
	    const ModInfo *modPtr;
	    const EventInfo *eiPtr;
	    int newEntry;
	    unsigned i;
#ifdef REDO_KEYSYM_LOOKUP
	    const KeySymInfo *kPtr;

	    Tcl_InitHashTable(&keySymTable, TCL_STRING_KEYS);
	    Tcl_InitHashTable(&nameTable, TCL_ONE_WORD_KEYS);
	    for (kPtr = keyArray; kPtr->name; ++kPtr) {
		hPtr = Tcl_CreateHashEntry(&keySymTable, kPtr->name, &newEntry);
		Tcl_SetHashValue(hPtr, kPtr->value);
		hPtr = Tcl_CreateHashEntry(&nameTable, (char *) kPtr->value, &newEntry);

		if (newEntry) {
		    Tcl_SetHashValue(hPtr, kPtr->name);
		}
	    }
#endif /* REDO_KEYSYM_LOOKUP */

	    for (i = 0; i < SIZE_OF_ARRAY(eventArrayIndex); ++i) {
		eventArrayIndex[i] = -1;
	    }
	    for (i = 0; i < SIZE_OF_ARRAY(eventArray); ++i) {
		unsigned type = eventArray[i].type;
		assert(type < TK_LASTEVENT);
		assert(type > 0 || i == SIZE_OF_ARRAY(eventArray) - 1);
		if (type > 0 && eventArrayIndex[type] == -1) {
		    eventArrayIndex[type] = i;
		}
	    }

	    Tcl_InitHashTable(&modTable, TCL_STRING_KEYS);
	    for (modPtr = modArray; modPtr->name; ++modPtr) {
		hPtr = Tcl_CreateHashEntry(&modTable, modPtr->name, &newEntry);
		Tcl_SetHashValue(hPtr, modPtr);
	    }

	    Tcl_InitHashTable(&eventTable, TCL_STRING_KEYS);
	    for (eiPtr = eventArray; eiPtr->name; ++eiPtr) {
		hPtr = Tcl_CreateHashEntry(&eventTable, eiPtr->name, &newEntry);
		Tcl_SetHashValue(hPtr, eiPtr);
	    }

	    initialized = 1;
	}
	Tcl_MutexUnlock(&bindMutex);
    }

    mainPtr->bindingTable = Tk_CreateBindingTable(mainPtr->interp);

    bindInfoPtr = ckalloc(sizeof(BindInfo));
    InitVirtualEventTable(&bindInfoPtr->virtualEventTable);
    bindInfoPtr->screenInfo.curDispPtr = NULL;
    bindInfoPtr->screenInfo.curScreenIndex = -1;
    bindInfoPtr->screenInfo.bindingDepth = 0;
    bindInfoPtr->deleted = 0;
    bindInfoPtr->lastCurrentTime = CurrentTimeInMilliSecs();
    bindInfoPtr->lastEventTime = 0;
    mainPtr->bindInfo = bindInfoPtr;
    DEBUG(countBindItems += 1);

    TkpInitializeMenuBindings(mainPtr->interp, mainPtr->bindingTable);
}

/*
 *---------------------------------------------------------------------------
 *
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 */

void
TkBindFree(
    TkMainInfo *mainPtr)	/* The newly created application. */
{
    BindInfo *bindInfoPtr;



    Tk_DeleteBindingTable(mainPtr->bindingTable);
    mainPtr->bindingTable = NULL;

    bindInfoPtr = mainPtr->bindInfo;
    DeleteVirtualEventTable(&bindInfoPtr->virtualEventTable);
    bindInfoPtr->deleted = 1;
    Tcl_EventuallyFree(bindInfoPtr, TCL_DYNAMIC);
    mainPtr->bindInfo = NULL;






}

/*
 *--------------------------------------------------------------
 *
 * Tk_CreateBindingTable --
 *






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 */

void
TkBindFree(
    TkMainInfo *mainPtr)	/* The newly created application. */
{
    BindInfo *bindInfoPtr;

    assert(mainPtr);

    Tk_DeleteBindingTable(mainPtr->bindingTable);
    mainPtr->bindingTable = NULL;

    bindInfoPtr = mainPtr->bindInfo;
    DeleteVirtualEventTable(&bindInfoPtr->virtualEventTable);
    bindInfoPtr->deleted = 1;
    Tcl_EventuallyFree(bindInfoPtr, TCL_DYNAMIC);
    mainPtr->bindInfo = NULL;

    DEBUG(countBindItems -= 1);
    assert(countBindItems > 0 || countTableItems == 0);
    assert(countBindItems > 0 || countEntryItems == 0);
    assert(countBindItems > 0 || countListItems == 0);
    assert(countBindItems > 0 || countSeqItems == 0);
}

/*
 *--------------------------------------------------------------
 *
 * Tk_CreateBindingTable --
 *
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 *	Memory is allocated for the new table.
 *
 *--------------------------------------------------------------
 */

Tk_BindingTable
Tk_CreateBindingTable(
    Tcl_Interp *interp)		/* Interpreter to associate with the binding
				 * table: commands are executed in this
				 * interpreter. */
{
    BindingTable *bindPtr = ckalloc(sizeof(BindingTable));
    int i;




    /*
     * Create and initialize a new binding table.
     */


    for (i = 0; i < EVENT_BUFFER_SIZE; i++) {
	bindPtr->eventRing[i].type = -1;
    }
    bindPtr->curEvent = 0;


    Tcl_InitHashTable(&bindPtr->patternTable,
	    sizeof(PatternTableKey)/sizeof(int));
    Tcl_InitHashTable(&bindPtr->objectTable, TCL_ONE_WORD_KEYS);
    bindPtr->interp = interp;
    return bindPtr;
}

/*
 *--------------------------------------------------------------






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 *	Memory is allocated for the new table.
 *
 *--------------------------------------------------------------
 */

Tk_BindingTable
Tk_CreateBindingTable(
    Tcl_Interp *interp)		/* Interpreter to associate with the binding table: commands are
    				 * executed in this interpreter. */

{
    BindingTable *bindPtr = ckalloc(sizeof(BindingTable));
    unsigned i;

    assert(interp);
    DEBUG(countTableItems += 1);

    /*
     * Create and initialize a new binding table.
     */

    memset(bindPtr, 0, sizeof(BindingTable));
    for (i = 0; i < SIZE_OF_ARRAY(bindPtr->eventInfo); ++i) {
	bindPtr->eventInfo[i].xev.type = -1;
    }
    bindPtr->curEvent = bindPtr->eventInfo; /* do not assign NULL */
    bindPtr->lookupTables.number = 0;
    PromArr_ResizeAndClear(&bindPtr->promArr, 2);
    Tcl_InitHashTable(&bindPtr->lookupTables.listTable, sizeof(PatternTableKey)/sizeof(int));
    Tcl_InitHashTable(&bindPtr->lookupTables.patternTable, sizeof(PatternTableKey)/sizeof(int));
    Tcl_InitHashTable(&bindPtr->objectTable, TCL_ONE_WORD_KEYS);
    bindPtr->interp = interp;
    return bindPtr;
}

/*
 *--------------------------------------------------------------
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 *--------------------------------------------------------------
 */

void
Tk_DeleteBindingTable(
    Tk_BindingTable bindPtr)	/* Token for the binding table to destroy. */
{
    PatSeq *psPtr, *nextPtr;
    Tcl_HashEntry *hPtr;
    Tcl_HashSearch search;



    /*
     * Find and delete all of the patterns associated with the binding table.
     */

    for (hPtr = Tcl_FirstHashEntry(&bindPtr->patternTable, &search);
	    hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) {



	for (psPtr = Tcl_GetHashValue(hPtr); psPtr != NULL; psPtr = nextPtr) {

	    nextPtr = psPtr->nextSeqPtr;
	    ckfree(psPtr->script);
	    ckfree(psPtr);
	}
    }











    /*
     * Clean up the rest of the information associated with the binding table.
     */


    Tcl_DeleteHashTable(&bindPtr->patternTable);
    Tcl_DeleteHashTable(&bindPtr->objectTable);

    ckfree(bindPtr);

}




















































/*
 *--------------------------------------------------------------
 *
 * Tk_CreateBinding --
 *
 *	Add a binding to a binding table, so that future calls to Tk_BindEvent
 *	may execute the command in the binding.






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 *--------------------------------------------------------------
 */

void
Tk_DeleteBindingTable(
    Tk_BindingTable bindPtr)	/* Token for the binding table to destroy. */
{

    Tcl_HashEntry *hPtr;
    Tcl_HashSearch search;

    assert(bindPtr);

    /*
     * Find and delete all of the patterns associated with the binding table.
     */

    hPtr = Tcl_FirstHashEntry(&bindPtr->lookupTables.patternTable, &search);
    for ( ; hPtr; hPtr = Tcl_NextHashEntry(&search)) {
	PatSeq *nextPtr;
	PatSeq *psPtr;

	for (psPtr = Tcl_GetHashValue(hPtr); psPtr; psPtr = nextPtr) {
	    assert(TEST_PSENTRY(psPtr));
	    nextPtr = psPtr->nextSeqPtr;

	    FreePatSeq(psPtr);
	}
    }

    /*
     * Don't forget to release lookup elements.
     */

    ClearLookupTable(&bindPtr->lookupTables, NULL);
    ClearPromotionLists(bindPtr, NULL);
    PromArr_Free(&bindPtr->promArr);
    DEBUG(countEntryItems -= PSList_Size(&bindPtr->lookupTables.entryPool));
    PSList_Traverse(&bindPtr->lookupTables.entryPool, FreePatSeqEntry);

    /*
     * Clean up the rest of the information associated with the binding table.
     */

    Tcl_DeleteHashTable(&bindPtr->lookupTables.patternTable);
    Tcl_DeleteHashTable(&bindPtr->lookupTables.listTable);
    Tcl_DeleteHashTable(&bindPtr->objectTable);

    ckfree(bindPtr);
    DEBUG(countTableItems -= 1);
}

/*
 *--------------------------------------------------------------
 *
 * InsertPatSeq --
 *
 *	Insert given pattern sequence into lookup table for fast
 *	access.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Memory allocated.
 *
 *--------------------------------------------------------------
 */

static void
InsertPatSeq(
    LookupTables *lookupTables,
    PatSeq *psPtr)
{
    assert(lookupTables);
    assert(psPtr);
    assert(TEST_PSENTRY(psPtr));
    assert(psPtr->numPats >= 1u);

    if (!(psPtr->added)) {
	PatternTableKey key;
	Tcl_HashEntry *hPtr;
	int isNew;
	PSList *psList;
	PSEntry *psEntry;

	SetupPatternKey(&key, psPtr);
	hPtr = Tcl_CreateHashEntry(&lookupTables->listTable, (char *) &key, &isNew);

	if (isNew) {
	    psList = ckalloc(sizeof(PSList));
	    PSList_Init(psList);
	    Tcl_SetHashValue(hPtr, psList);
	    DEBUG(countListItems += 1);
	} else {
	    psList = Tcl_GetHashValue(hPtr);
	}

	psEntry = MakeListEntry(&lookupTables->entryPool, psPtr, 0);
	PSList_Append(psList, psEntry);
	psPtr->added = 1;
    }
}
/*
 *--------------------------------------------------------------
 *
 * Tk_CreateBinding --
 *
 *	Add a binding to a binding table, so that future calls to Tk_BindEvent
 *	may execute the command in the binding.
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 *--------------------------------------------------------------
 */

unsigned long
Tk_CreateBinding(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tk_BindingTable bindPtr,	/* Table in which to create binding. */
    ClientData object,		/* Token for object with which binding is
				 * associated. */
    const char *eventString,	/* String describing event sequence that
				 * triggers binding. */
    const char *script,		/* Contains Tcl script to execute when
				 * binding triggers. */
    int append)			/* 0 means replace any existing binding for
				 * eventString; 1 means append to that
				 * binding. If the existing binding is for a
				 * callback function and not a Tcl command
				 * string, the existing binding will always be
				 * replaced. */
{
    PatSeq *psPtr;
    unsigned long eventMask;

    char *newStr, *oldStr;









    if (!*script) {

	/* Silently ignore empty scripts -- see SF#3006842 */
	return 1;
    }
    psPtr = FindSequence(interp, &bindPtr->patternTable, object, eventString,
	    1, 1, &eventMask);
    if (psPtr == NULL) {
	return 0;
    }

    if (psPtr->script == NULL) {









	int isNew;

	Tcl_HashEntry *hPtr;


	/*
	 * This pattern sequence was just created. Link the pattern into the
	 * list associated with the object, so that if the object goes away,
	 * these bindings will all automatically be deleted.
	 */

	hPtr = Tcl_CreateHashEntry(&bindPtr->objectTable, (char *) object,
		&isNew);
	if (isNew) {
	    psPtr->nextObjPtr = NULL;
	} else {
	    psPtr->nextObjPtr = Tcl_GetHashValue(hPtr);
	}
	Tcl_SetHashValue(hPtr, psPtr);

    }

    oldStr = psPtr->script;
    if ((append != 0) && (oldStr != NULL)) {
	size_t length1 = strlen(oldStr), length2 = strlen(script);


	newStr = ckalloc(length1 + length2 + 2);
	memcpy(newStr, oldStr, length1);
	newStr[length1] = '\n';
	memcpy(newStr+length1+1, script, length2+1);
    } else {
	size_t length = strlen(script);

	newStr = ckalloc(length + 1);
	memcpy(newStr, script, length+1);
    }
    if (oldStr != NULL) {
	ckfree(oldStr);
    }
    psPtr->script = newStr;
    return eventMask;
}

/*
 *--------------------------------------------------------------
 *






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 *--------------------------------------------------------------
 */

unsigned long
Tk_CreateBinding(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tk_BindingTable bindPtr,	/* Table in which to create binding. */
    ClientData object,		/* Token for object with which binding is associated. */

    const char *eventString,	/* String describing event sequence that triggers binding. */

    const char *script,		/* Contains Tcl script to execute when binding triggers. */

    int append)		/* 0 means replace any existing binding for eventString;

    				 * 1 means append to that binding. If the existing binding is
				 * for a callback function and not a Tcl command string, the
				 * existing binding will always be replaced. */

{
    PatSeq *psPtr;
    EventMask eventMask;
    char *oldStr;
    char *newStr;

    assert(bindPtr);
    assert(object);
    assert(eventString);
    assert(script);

    psPtr = FindSequence(interp, &bindPtr->lookupTables, object, eventString,
	    !!*script, 1, &eventMask);

    if (!*script) {
	assert(!psPtr || psPtr->added);
	/* Silently ignore empty scripts -- see SF#3006842 */
	return eventMask;
    }


    if (!psPtr) {
	return 0;
    }
    assert(TEST_PSENTRY(psPtr));

    if (psPtr->numPats > PromArr_Capacity(bindPtr->promArr)) {
	/*
	 * We have to increase the size of array containing the lists of promoted sequences.
	 * Normally the maximal size is 1, only in very seldom cases a bigger size is needed.
	 * Note that for technical reasons the capacity should be one higher than the expected
	 * maximal size.
	 */
	PromArr_ResizeAndClear(&bindPtr->promArr, psPtr->numPats);
    }

    if (!psPtr->script) {
	Tcl_HashEntry *hPtr;
	int isNew;

	/*
	 * This pattern sequence was just created. Link the pattern into the
	 * list associated with the object, so that if the object goes away,
	 * these bindings will all automatically be deleted.
	 */

	hPtr = Tcl_CreateHashEntry(&bindPtr->objectTable, (char *) object, &isNew);




	psPtr->ptr.nextObj = isNew ? NULL : Tcl_GetHashValue(hPtr);

	Tcl_SetHashValue(hPtr, psPtr);
	InsertPatSeq(&bindPtr->lookupTables, psPtr);
    }

    oldStr = psPtr->script;
    if (append && oldStr) {
	size_t length1 = strlen(oldStr);
	size_t length2 = strlen(script);

	newStr = ckalloc(length1 + length2 + 2);
	memcpy(newStr, oldStr, length1);
	newStr[length1] = '\n';
	memcpy(newStr + length1 + 1, script, length2 + 1);
    } else {
	size_t length = strlen(script);

	newStr = ckalloc(length + 1);
	memcpy(newStr, script, length + 1);
    }

    ckfree(oldStr);

    psPtr->script = newStr;
    return eventMask;
}

/*
 *--------------------------------------------------------------
 *
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 *--------------------------------------------------------------
 */

int
Tk_DeleteBinding(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tk_BindingTable bindPtr,	/* Table in which to delete binding. */
    ClientData object,		/* Token for object with which binding is
				 * associated. */
    const char *eventString)	/* String describing event sequence that
				 * triggers binding. */
{
    PatSeq *psPtr, *prevPtr;
    unsigned long eventMask;
    Tcl_HashEntry *hPtr;



    psPtr = FindSequence(interp, &bindPtr->patternTable, object, eventString,
	    0, 1, &eventMask);
    if (psPtr == NULL) {
	Tcl_ResetResult(interp);


	return TCL_OK;
    }


    /*
     * Unlink the binding from the list for its object, then from the list for
     * its pattern.
     */

    hPtr = Tcl_FindHashEntry(&bindPtr->objectTable, (char *) object);
    if (hPtr == NULL) {
	Tcl_Panic("Tk_DeleteBinding couldn't find object table entry");
    }
    prevPtr = Tcl_GetHashValue(hPtr);
    if (prevPtr == psPtr) {
	Tcl_SetHashValue(hPtr, psPtr->nextObjPtr);
    } else {
	for ( ; ; prevPtr = prevPtr->nextObjPtr) {
	    if (prevPtr == NULL) {
		Tcl_Panic("Tk_DeleteBinding couldn't find on object list");
	    }
	    if (prevPtr->nextObjPtr == psPtr) {
		prevPtr->nextObjPtr = psPtr->nextObjPtr;
		break;
	    }
	}
    }
    prevPtr = Tcl_GetHashValue(psPtr->hPtr);
    if (prevPtr == psPtr) {
	if (psPtr->nextSeqPtr == NULL) {
	    Tcl_DeleteHashEntry(psPtr->hPtr);
	} else {
	    Tcl_SetHashValue(psPtr->hPtr, psPtr->nextSeqPtr);
	}
    } else {
	for ( ; ; prevPtr = prevPtr->nextSeqPtr) {
	    if (prevPtr == NULL) {
		Tcl_Panic("Tk_DeleteBinding couldn't find on hash chain");
	    }
	    if (prevPtr->nextSeqPtr == psPtr) {
		prevPtr->nextSeqPtr = psPtr->nextSeqPtr;
		break;
	    }
	}
    }


    ckfree(psPtr->script);
    ckfree(psPtr);


    return TCL_OK;
}

/*
 *--------------------------------------------------------------
 *
 * Tk_GetBinding --






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 *--------------------------------------------------------------
 */

int
Tk_DeleteBinding(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tk_BindingTable bindPtr,	/* Table in which to delete binding. */
    ClientData object,		/* Token for object with which binding is associated. */

    const char *eventString)	/* String describing event sequence that triggers binding. */

{
    PatSeq *psPtr;

    assert(bindPtr);
    assert(object);
    assert(eventString);

    psPtr = FindSequence(interp, &bindPtr->lookupTables, object, eventString, 0, 1, NULL);

    if (!psPtr) {
	Tcl_ResetResult(interp);
    } else {
	Tcl_HashEntry *hPtr;
	PatSeq *prevPtr;

	assert(TEST_PSENTRY(psPtr));

	/*
	 * Unlink the binding from the list for its object.

	 */

	if (!(hPtr = Tcl_FindHashEntry(&bindPtr->objectTable, (char *) object))) {

	    Tcl_Panic("Tk_DeleteBinding couldn't find object table entry");
	}
	prevPtr = Tcl_GetHashValue(hPtr);
	if (prevPtr == psPtr) {
	    Tcl_SetHashValue(hPtr, psPtr->ptr.nextObj);















	} else {



	    for ( ; ; prevPtr = prevPtr->ptr.nextObj) {
		if (!prevPtr) {
		    Tcl_Panic("Tk_DeleteBinding couldn't find on object list");
		}
		if (prevPtr->ptr.nextObj == psPtr) {
		    prevPtr->ptr.nextObj = psPtr->ptr.nextObj;
		    break;
		}
	    }
	}

	RemovePatSeqFromLookup(&bindPtr->lookupTables, psPtr);
	RemovePatSeqFromPromotionLists(bindPtr, psPtr);
	DeletePatSeq(psPtr);
    }

    return TCL_OK;
}

/*
 *--------------------------------------------------------------
 *
 * Tk_GetBinding --
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 *--------------------------------------------------------------
 */

const char *
Tk_GetBinding(
    Tcl_Interp *interp,		/* Interpreter for error reporting. */
    Tk_BindingTable bindPtr,	/* Table in which to look for binding. */
    ClientData object,		/* Token for object with which binding is
				 * associated. */
    const char *eventString)	/* String describing event sequence that
				 * triggers binding. */
{
    PatSeq *psPtr;
    unsigned long eventMask;

    psPtr = FindSequence(interp, &bindPtr->patternTable, object, eventString,

	    0, 1, &eventMask);
    if (psPtr == NULL) {
	return NULL;
    }


    return psPtr->script;
}

/*
 *--------------------------------------------------------------
 *
 * Tk_GetAllBindings --
 *






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 *--------------------------------------------------------------
 */

const char *
Tk_GetBinding(
    Tcl_Interp *interp,		/* Interpreter for error reporting. */
    Tk_BindingTable bindPtr,	/* Table in which to look for binding. */
    ClientData object,		/* Token for object with which binding is associated. */

    const char *eventString)	/* String describing event sequence that triggers binding. */

{
    const PatSeq *psPtr;


    assert(bindPtr);
    assert(object);
    assert(eventString);



    psPtr = FindSequence(interp, &bindPtr->lookupTables, object, eventString, 0, 1, NULL);
    assert(!psPtr || TEST_PSENTRY(psPtr));
    return psPtr ? psPtr->script : NULL;
}

/*
 *--------------------------------------------------------------
 *
 * Tk_GetAllBindings --
 *
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void
Tk_GetAllBindings(
    Tcl_Interp *interp,		/* Interpreter returning result or error. */
    Tk_BindingTable bindPtr,	/* Table in which to look for bindings. */
    ClientData object)		/* Token for object. */
{






    PatSeq *psPtr;





































    Tcl_HashEntry *hPtr;
    Tcl_Obj *resultObj;





    hPtr = Tcl_FindHashEntry(&bindPtr->objectTable, (char *) object);


    if (hPtr == NULL) {




	return;
    }













































    resultObj = Tcl_NewObj();





























    for (psPtr = Tcl_GetHashValue(hPtr); psPtr != NULL;
	    psPtr = psPtr->nextObjPtr) {

	/*
	 * For each binding, output information about each of the patterns in

	 * its sequence.
	 */



	Tcl_ListObjAppendElement(NULL, resultObj, GetPatternObj(psPtr));


    }











    Tcl_SetObjResult(interp, resultObj);


}

/*
 *--------------------------------------------------------------
 *
 * Tk_DeleteAllBindings --
 *






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void
Tk_GetAllBindings(
    Tcl_Interp *interp,		/* Interpreter returning result or error. */
    Tk_BindingTable bindPtr,	/* Table in which to look for bindings. */
    ClientData object)		/* Token for object. */
{
    Tcl_HashEntry *hPtr;

    assert(bindPtr);
    assert(object);

    if ((hPtr = Tcl_FindHashEntry(&bindPtr->objectTable, (char *) object))) {
	const PatSeq *psPtr;
	Tcl_Obj *resultObj = Tcl_NewObj();

	/*
	 * For each binding, output information about each of the patterns in its sequence.
	 */

	for (psPtr = Tcl_GetHashValue(hPtr); psPtr; psPtr = psPtr->ptr.nextObj) {
	    assert(TEST_PSENTRY(psPtr));
	    Tcl_ListObjAppendElement(NULL, resultObj, GetPatternObj(psPtr));
	}
	Tcl_SetObjResult(interp, resultObj);
    }
}

/*
 *--------------------------------------------------------------
 *
 * RemovePatSeqFromLookup --
 *
 *	Remove given pattern sequence from lookup tables. This
 *	can be required before deleting the pattern sequence.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	None.
 *
 *--------------------------------------------------------------
 */

static void
RemovePatSeqFromLookup(
    LookupTables *lookupTables,	/* Remove from this lookup tables. */
    PatSeq *psPtr)		/* Remove this pattern sequence. */
{
    PatternTableKey key;
    Tcl_HashEntry *hPtr;

    assert(lookupTables);
    assert(psPtr);

    SetupPatternKey(&key, psPtr);

    if ((hPtr = Tcl_FindHashEntry(&lookupTables->listTable, (char *) &key))) {
	PSList *psList = Tcl_GetHashValue(hPtr);
	PSEntry *psEntry;

	TK_DLIST_FOREACH(psEntry, psList) {
	    if (psEntry->psPtr == psPtr) {
		psPtr->added = 0;
		RemoveListEntry(&lookupTables->entryPool, psEntry);
		return;
	    }
	}
    }

    assert(!"couldn't find pattern sequence in lookup");
}

/*
 *--------------------------------------------------------------
 *
 * RemovePatSeqFromPromotionLists --
 *
 *	Remove given pattern sequence from promotion lists. This
 *	can be required before deleting the pattern sequence.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	None.
 *
 *--------------------------------------------------------------
 */

static void
RemovePatSeqFromPromotionLists(
    Tk_BindingTable bindPtr,	/* Table in which to look for bindings. */
    PatSeq *psPtr)		/* Remove this pattern sequence. */
{
    unsigned i;

    assert(bindPtr);
    assert(psPtr);

    for (i = 0; i < PromArr_Size(bindPtr->promArr); ++i) {
	PSList *psList = PromArr_Get(bindPtr->promArr, i);
	PSEntry *psEntry;

	TK_DLIST_FOREACH(psEntry, psList) {
	    if (psEntry->psPtr == psPtr) {
		RemoveListEntry(&bindPtr->lookupTables.entryPool, psEntry);
		break;
	    }
	}
    }
}

/*
 *--------------------------------------------------------------
 *
 * DeletePatSeq --
 *
 *	Delete given pattern sequence. Possibly it is required
 *	to invoke RemovePatSeqFromLookup(), and RemovePatSeqFromPromotionLists()
 *	before.
 *
 * Results:
 *	Pointer to succeeding pattern sequence.
 *
 * Side effects:
 *	Deallocation of memory.
 *
 *--------------------------------------------------------------
 */

static PatSeq *
DeletePatSeq(
    PatSeq *psPtr)		/* Delete this pattern sequence. */
{
    PatSeq *prevPtr;
    PatSeq *nextPtr;

    assert(psPtr);
    assert(!psPtr->added);
    assert(!psPtr->owned);

    prevPtr = Tcl_GetHashValue(psPtr->hPtr);
    nextPtr = psPtr->ptr.nextObj;

    /*
     * Be sure to remove each binding from its hash chain in the pattern
     * table. If this is the last pattern in the chain, then delete the
     * hash entry too.
     */

    if (prevPtr == psPtr) {
	if (!psPtr->nextSeqPtr) {
	    Tcl_DeleteHashEntry(psPtr->hPtr);
	} else {
	    Tcl_SetHashValue(psPtr->hPtr, psPtr->nextSeqPtr);
	}
    } else {
	for ( ; ; prevPtr = prevPtr->nextSeqPtr) {
	    if (!prevPtr) {
		Tcl_Panic("DeletePatSeq couldn't find on hash chain");
	    }
	    if (prevPtr->nextSeqPtr == psPtr) {
		prevPtr->nextSeqPtr = psPtr->nextSeqPtr;
		break;
	    }
	}
    }

    FreePatSeq(psPtr);
    return nextPtr;
}

/*
 *--------------------------------------------------------------
 *
 * Tk_DeleteAllBindings --
 *
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 */

void
Tk_DeleteAllBindings(
    Tk_BindingTable bindPtr,	/* Table in which to delete bindings. */
    ClientData object)		/* Token for object. */
{
    PatSeq *psPtr, *prevPtr;
    PatSeq *nextPtr;
    Tcl_HashEntry *hPtr;




    hPtr = Tcl_FindHashEntry(&bindPtr->objectTable, (char *) object);
    if (hPtr == NULL) {
	return;
    }
    for (psPtr = Tcl_GetHashValue(hPtr); psPtr != NULL;
	    psPtr = nextPtr) {
	nextPtr = psPtr->nextObjPtr;

	/*
	 * Be sure to remove each binding from its hash chain in the pattern
	 * table. If this is the last pattern in the chain, then delete the
	 * hash entry too.

	 */

	prevPtr = Tcl_GetHashValue(psPtr->hPtr);
	if (prevPtr == psPtr) {
	    if (psPtr->nextSeqPtr == NULL) {
		Tcl_DeleteHashEntry(psPtr->hPtr);
	    } else {
		Tcl_SetHashValue(psPtr->hPtr, psPtr->nextSeqPtr);
	    }
	} else {
	    for ( ; ; prevPtr = prevPtr->nextSeqPtr) {
		if (prevPtr == NULL) {
		    Tcl_Panic("Tk_DeleteAllBindings couldn't find on hash chain");
		}
		if (prevPtr->nextSeqPtr == psPtr) {
		    prevPtr->nextSeqPtr = psPtr->nextSeqPtr;
		    break;

		}
	    }
	}
	ckfree(psPtr->script);
	ckfree(psPtr);
    }
    Tcl_DeleteHashEntry(hPtr);
}

/*
 *---------------------------------------------------------------------------
 *
 * Tk_BindEvent --






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2025
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2030
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 */

void
Tk_DeleteAllBindings(
    Tk_BindingTable bindPtr,	/* Table in which to delete bindings. */
    ClientData object)		/* Token for object. */
{
    PatSeq *psPtr;
    PatSeq *nextPtr;
    Tcl_HashEntry *hPtr;

    assert(bindPtr);
    assert(object);

    if (!(hPtr = Tcl_FindHashEntry(&bindPtr->objectTable, (char *) object))) {

	return;
    }




    /*



     * Don't forget to clear lookup tables.
     */

    ClearLookupTable(&bindPtr->lookupTables, object);
    ClearPromotionLists(bindPtr, object);






    for (psPtr = Tcl_GetHashValue(hPtr); psPtr; psPtr = nextPtr) {



	assert(TEST_PSENTRY(psPtr));
	DEBUG(psPtr->added = 0);

	nextPtr = DeletePatSeq(psPtr);
    }





    Tcl_DeleteHashEntry(hPtr);
}

/*
 *---------------------------------------------------------------------------
 *
 * Tk_BindEvent --
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 *	All Tcl binding scripts for each object are accumulated before the
 *	first binding is evaluated. If the action of a Tcl binding is to
 *	change or delete a binding, or delete the window associated with the
 *	binding, all the original Tcl binding scripts will still fire.
 *
 *---------------------------------------------------------------------------
 */




































































void
Tk_BindEvent(
    Tk_BindingTable bindPtr,	/* Table in which to look for bindings. */
    XEvent *eventPtr,		/* What actually happened. */
    Tk_Window tkwin,		/* Window on display where event occurred
				 * (needed in order to locate display
				 * information). */
    int numObjects,		/* Number of objects at *objectPtr. */
    ClientData *objectPtr)	/* Array of one or more objects to check for a
				 * matching binding. */
{
    TkDisplay *dispPtr;
    ScreenInfo *screenPtr;
    BindInfo *bindInfoPtr;
    TkDisplay *oldDispPtr;
    XEvent *ringPtr;
    PatSeq *vMatchDetailList, *vMatchNoDetailList;
    int flags, oldScreen;
    unsigned int scriptCount;
    Tcl_Interp *interp;





    Tcl_DString scripts;
    Tcl_InterpState interpState;
    Detail detail;
    char *p, *end;







    TkWindow *winPtr = (TkWindow *) tkwin;
    PatternTableKey key;




    /*
     * Ignore events on windows that don't have names: these are windows like
     * wrapper windows that shouldn't be visible to the application.
     */

    if (winPtr->pathName == NULL) {










	return;
    }











    /*
     * Ignore the event completely if it is an Enter, Leave, FocusIn, or
     * FocusOut event with detail NotifyInferior. The reason for ignoring
     * these events is that we don't want transitions between a window and its
     * children to visible to bindings on the parent: this would cause
     * problems for mega-widgets, since the internal structure of a
     * mega-widget isn't supposed to be visible to people watching the parent.


     */

    if ((eventPtr->type == EnterNotify) || (eventPtr->type == LeaveNotify)) {






	if (eventPtr->xcrossing.detail == NotifyInferior) {
	    return;
	}
    }


    if ((eventPtr->type == FocusIn) || (eventPtr->type == FocusOut)) {
	if (eventPtr->xfocus.detail == NotifyInferior) {
	    return;
	}
    }

    /*
     * Ignore event types which are not in flagArray and all zeroes there.
     * Most notably, NoExpose events can fill the ring buffer and disturb
     * (thus masking out) event sequences of interest.
     */

    if ((eventPtr->type >= TK_LASTEVENT) || !flagArray[eventPtr->type]) {
	return;
    }

    dispPtr = ((TkWindow *) tkwin)->dispPtr;
    bindInfoPtr = winPtr->mainPtr->bindInfo;

    /*
     * Add the new event to the ring of saved events for the binding table.
     * Two tricky points:
     *
     * 1. Combine consecutive MotionNotify events. Do this by putting the new
     *    event *on top* of the previous event.
     * 2. If a modifier key is held down, it auto-repeats to generate
     *    continuous KeyPress and KeyRelease events. These can flush the event
     *    ring so that valuable information is lost (such as repeated button
     *    clicks). To handle this, check for the special case of a modifier
     *    KeyPress arriving when the previous two events are a KeyRelease and
     *    KeyPress of the same key. If this happens, mark the most recent
     *    event (the KeyRelease) invalid and put the new event on top of the
     *    event before that (the KeyPress).
     */

    if ((eventPtr->type == MotionNotify)
	    && (bindPtr->eventRing[bindPtr->curEvent].type == MotionNotify)) {
	/*
	 * Don't advance the ring pointer.
	 */
    } else if (eventPtr->type == KeyPress) {
	int i;

	for (i = 0; ; i++) {
	    if (i >= dispPtr->numModKeyCodes) {
		goto advanceRingPointer;
	    }
	    if (dispPtr->modKeyCodes[i] == eventPtr->xkey.keycode) {










		break;
	    }












	}


	ringPtr = &bindPtr->eventRing[bindPtr->curEvent];
	if ((ringPtr->type != KeyRelease)
		|| (ringPtr->xkey.keycode != eventPtr->xkey.keycode)) {
	    goto advanceRingPointer;
	}


	if (bindPtr->curEvent <= 0) {
	    i = EVENT_BUFFER_SIZE - 1;



	} else {

	    i = bindPtr->curEvent - 1;



	}

	ringPtr = &bindPtr->eventRing[i];

	if ((ringPtr->type != KeyPress)


		|| (ringPtr->xkey.keycode != eventPtr->xkey.keycode)) {






















	    goto advanceRingPointer;





	}



	bindPtr->eventRing[bindPtr->curEvent].type = -1;





	bindPtr->curEvent = i;


    } else {


    advanceRingPointer:
	bindPtr->curEvent++;
	if (bindPtr->curEvent >= EVENT_BUFFER_SIZE) {
	    bindPtr->curEvent = 0;
	}



    }
    ringPtr = &bindPtr->eventRing[bindPtr->curEvent];
    memcpy(ringPtr, eventPtr, sizeof(XEvent));
    detail.clientData = 0;
    flags = flagArray[ringPtr->type];
    if (flags & KEY) {
	detail.keySym = TkpGetKeySym(dispPtr, ringPtr);
	if (detail.keySym == NoSymbol) {
	    detail.keySym = 0;
	}
    } else if (flags & BUTTON) {
	detail.button = ringPtr->xbutton.button;
    } else if (flags & VIRTUAL) {
	detail.name = ((XVirtualEvent *) ringPtr)->name;
    }
    bindPtr->detailRing[bindPtr->curEvent] = detail;

    /*
     * Find out if there are any virtual events that correspond to this
     * physical event (or sequence of physical events).
     */

    vMatchDetailList = NULL;
    vMatchNoDetailList = NULL;
    memset(&key, 0, sizeof(key));

    if (ringPtr->type != VirtualEvent) {
	Tcl_HashTable *veptPtr = &bindInfoPtr->virtualEventTable.patternTable;
	Tcl_HashEntry *hPtr;

	key.object = NULL;
	key.type = ringPtr->type;
	key.detail = detail;

	hPtr = Tcl_FindHashEntry(veptPtr, (char *) &key);
	if (hPtr != NULL) {
	    vMatchDetailList = Tcl_GetHashValue(hPtr);
	}

	if (key.detail.clientData != 0) {
	    key.detail.clientData = 0;
	    hPtr = Tcl_FindHashEntry(veptPtr, (char *) &key);
	    if (hPtr != NULL) {
		vMatchNoDetailList = Tcl_GetHashValue(hPtr);
	    }
	}
    }

    /*
     * Loop over all the binding tags, finding the binding script or callback
     * for each one. Append all of the binding scripts, with %-sequences
     * expanded, to "scripts", with null characters separating the scripts for
     * each object.
     */

    scriptCount = 0;

    Tcl_DStringInit(&scripts);

    for ( ; numObjects > 0; numObjects--, objectPtr++) {

	PatSeq *matchPtr = NULL, *sourcePtr = NULL;


	Tcl_HashEntry *hPtr;





	/*
	 * Match the new event against those recorded in the pattern table,
	 * saving the longest matching pattern. For events with details
	 * (button and key events), look for a binding for the specific key or
	 * button. First see if the event matches a physical event that the
	 * object is interested in, then look for a virtual event.




	 */

	key.object = *objectPtr;
	key.type = ringPtr->type;
	key.detail = detail;
	hPtr = Tcl_FindHashEntry(&bindPtr->patternTable, (char *) &key);
	if (hPtr != NULL) {
	    matchPtr = MatchPatterns(dispPtr, bindPtr, Tcl_GetHashValue(hPtr),
		    matchPtr, NULL, &sourcePtr);



	}




	if (vMatchDetailList != NULL) {
	    matchPtr = MatchPatterns(dispPtr, bindPtr, vMatchDetailList,
		    matchPtr, objectPtr, &sourcePtr);
	}





	/*
	 * If no match was found, look for a binding for all keys or buttons
	 * (detail of 0). Again, first match on a virtual event.
	 */

	if ((detail.clientData != 0) && (matchPtr == NULL)) {
	    key.detail.clientData = 0;
	    hPtr = Tcl_FindHashEntry(&bindPtr->patternTable, (char *) &key);
	    if (hPtr != NULL) {
		matchPtr = MatchPatterns(dispPtr, bindPtr,
			Tcl_GetHashValue(hPtr), matchPtr, NULL, &sourcePtr);


	    }


	    if (vMatchNoDetailList != NULL) {
		matchPtr = MatchPatterns(dispPtr, bindPtr, vMatchNoDetailList,

			matchPtr, objectPtr, &sourcePtr);



	    }
	}


	if (matchPtr != NULL) {
	    ExpandPercents(winPtr, sourcePtr->script, eventPtr,
		    detail.keySym, scriptCount++, &scripts);












	    /*



	     * A "" is added to the scripts string to separate the various

	     * scripts that should be invoked.








	     */




















	    Tcl_DStringAppend(&scripts, "", 1);
	}
    }








































































    if (Tcl_DStringLength(&scripts) == 0) {
	return;
    }

    /*
     * Now go back through and evaluate the binding for each object, in order,
     * dealing with "break" and "continue" exceptions appropriately.
     *
     * There are two tricks here:







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2537
 *	All Tcl binding scripts for each object are accumulated before the
 *	first binding is evaluated. If the action of a Tcl binding is to
 *	change or delete a binding, or delete the window associated with the
 *	binding, all the original Tcl binding scripts will still fire.
 *
 *---------------------------------------------------------------------------
 */

/* helper function */
static void
ResetCounters(
    Event *eventInfo,
    unsigned eventType,
    Window window)
{
    Event *curEvent;

    assert(eventInfo);
    curEvent = eventInfo + eventType;

    if (curEvent->xev.xany.window == window) {
	curEvent->xev.xany.window = None;
	eventInfo[eventType].countAny = 0;
	eventInfo[eventType].countDetailed = 0;
    }
}

/* helper function */
static int
IsBetterMatch(
    const PatSeq *fstMatchPtr,
    const PatSeq *sndMatchPtr)	/* this is a better match? */
{
    int diff;

    if (!sndMatchPtr) { return 0; }
    if (!fstMatchPtr) { return 1; }

    diff = CountSpecialized(fstMatchPtr, sndMatchPtr);
    if (diff > 0) { return 1; }
    if (diff < 0) { return 0; }

#if PREFER_MOST_SPECIALIZED_EVENT
    {	/* local scope */
#define M (Tcl_WideUInt)1000000
	static const Tcl_WideUInt weight[5] = { 0, 1, M, M*M, M*M*M };
#undef M
	Tcl_WideUInt fstCount = 0;
	Tcl_WideUInt sndCount = 0;
	unsigned i;

	/*
	 * Count the most high-ordered patterns.
	 *
	 * (This computation assumes that a sequence does not contain more than
	 * 1,000,000 single patterns. It can be precluded that in practice this
	 * assumption will not be violated.)
	 */

	for (i = 0; i < fstMatchPtr->numPats; ++i) {
	    assert(GetCount(fstMatchPtr, i) < SIZE_OF_ARRAY(weight));
	    fstCount += weight[GetCount(fstMatchPtr, i)];
	}
	for (i = 0; i < sndMatchPtr->numPats; ++i) {
	    assert(GetCount(sndMatchPtr, i) < SIZE_OF_ARRAY(weight));
	    sndCount += weight[GetCount(sndMatchPtr, i)];
	}
	if (sndCount > fstCount) { return 1; }
	if (sndCount < fstCount) { return 0; }
    }
#endif

    return sndMatchPtr->number > fstMatchPtr->number;
}

void
Tk_BindEvent(
    Tk_BindingTable bindPtr,	/* Table in which to look for bindings. */
    XEvent *eventPtr,		/* What actually happened. */
    Tk_Window tkwin,		/* Window on display where event occurred (needed in order to

    				 * locate display information). */
    int numObjects,		/* Number of objects at *objArr. */
    ClientData *objArr)		/* Array of one or more objects to check for a matching binding. */

{
    Tcl_Interp *interp;
    ScreenInfo *screenPtr;
    TkDisplay *dispPtr;
    TkDisplay *oldDispPtr;
    Event *curEvent;
    TkWindow *winPtr = (TkWindow *) tkwin;
    BindInfo *bindInfoPtr;

    Tcl_InterpState interpState;
    LookupTables *physTables;
    PatSeq *psPtr[2];
    PatSeq *matchPtrBuf[32];
    PatSeq **matchPtrArr = matchPtrBuf;
    PSList *psl[2];
    Tcl_DString scripts;


    const char *p;
    const char *end;
    unsigned scriptCount;
    int oldScreen;
    unsigned flags;
    unsigned arraySize;
    unsigned newArraySize;
    unsigned i, k;

    assert(bindPtr);
    assert(eventPtr);
    assert(tkwin);
    assert(numObjects >= 0);

    /*
     * Ignore events on windows that don't have names: these are windows like
     * wrapper windows that shouldn't be visible to the application.
     */

    if (!winPtr->pathName) {
	return;
    }

    flags = flagArray[eventPtr->type];

    /*
     * Ignore event types which are not in flagArray and all zeroes there.
     */

    if (eventPtr->type >= TK_LASTEVENT || !flags) {
	return;
    }

    if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
	bindPtr->curModMask = eventPtr->xkey.state;
    } else if (flags & CROSSING) {
	bindPtr->curModMask = eventPtr->xcrossing.state;
    }

    dispPtr = ((TkWindow *) tkwin)->dispPtr;
    bindInfoPtr = winPtr->mainPtr->bindInfo;
    curEvent = bindPtr->eventInfo + eventPtr->type;

    /*
     * Ignore the event completely if it is an Enter, Leave, FocusIn, or
     * FocusOut event with detail NotifyInferior. The reason for ignoring
     * these events is that we don't want transitions between a window and its
     * children to visible to bindings on the parent: this would cause
     * problems for mega-widgets, since the internal structure of a
     * mega-widget isn't supposed to be visible to people watching the parent.
     *
     * Furthermore we have to compute current time, needed for "event generate".
     */

    switch (eventPtr->type) {
    case EnterNotify:
    case LeaveNotify:
	if (eventPtr->xcrossing.time) {
	    bindInfoPtr->lastCurrentTime = CurrentTimeInMilliSecs();
	    bindInfoPtr->lastEventTime = eventPtr->xcrossing.time;
	}
	if (eventPtr->xcrossing.detail == NotifyInferior) {
	    return;
	}

	break;
    case FocusIn:
    case FocusOut:
	if (eventPtr->xfocus.detail == NotifyInferior) {
	    return;
	}

	break;



    case KeyPress:

    case KeyRelease: {

	int reset = 1;

	if (eventPtr->xkey.time) {

	    bindInfoPtr->lastCurrentTime = CurrentTimeInMilliSecs();
	    bindInfoPtr->lastEventTime = eventPtr->xkey.time;















	}







	/* modifier keys should not influence button events */
	for (i = 0; i < (unsigned) dispPtr->numModKeyCodes; ++i) {



	    if (dispPtr->modKeyCodes[i] == eventPtr->xkey.keycode) {
		reset = 0;
	    }
	}
	if (reset) {
	    /* reset repetition count for button events */
	    bindPtr->eventInfo[ButtonPress].countAny = 0;
	    bindPtr->eventInfo[ButtonPress].countDetailed = 0;
	    bindPtr->eventInfo[ButtonRelease].countAny = 0;
	    bindPtr->eventInfo[ButtonRelease].countDetailed = 0;
	}
	break;
    }
    case ButtonPress:
    case ButtonRelease:
	/* reset repetition count for key events */
	bindPtr->eventInfo[KeyPress].countAny = 0;
	bindPtr->eventInfo[KeyPress].countDetailed = 0;
	bindPtr->eventInfo[KeyRelease].countAny = 0;
	bindPtr->eventInfo[KeyRelease].countDetailed = 0;
	/* fallthru */
    case MotionNotify:
	if (eventPtr->xmotion.time) {
	    bindInfoPtr->lastCurrentTime = CurrentTimeInMilliSecs();
	    bindInfoPtr->lastEventTime = eventPtr->xmotion.time;
	}
	break;
    case PropertyNotify:
	if (eventPtr->xproperty.time) {
	    bindInfoPtr->lastCurrentTime = CurrentTimeInMilliSecs();
	    bindInfoPtr->lastEventTime = eventPtr->xproperty.time;

	}
	break;
    case DestroyNotify:
	ResetCounters(bindPtr->eventInfo, KeyPress, eventPtr->xany.window);

	ResetCounters(bindPtr->eventInfo, KeyRelease, eventPtr->xany.window);
	ResetCounters(bindPtr->eventInfo, ButtonPress, eventPtr->xany.window);
	ResetCounters(bindPtr->eventInfo, ButtonRelease, eventPtr->xany.window);
	break;
    }

    /*
     * Now check whether this is a repeating event (multi-click, repeated key press, and so on).
     */

    /* NOTE: if curEvent is not yet set, then the following cannot match: */
    if (curEvent->xev.xany.window == eventPtr->xany.window) {
	switch (eventPtr->type) {
	case KeyPress:
	case KeyRelease:
	    if (MatchEventRepeat(&curEvent->xev, eventPtr)) {
		if (curEvent->xev.xkey.keycode == eventPtr->xkey.keycode) {
		    ++curEvent->countDetailed;
		} else {
		    curEvent->countDetailed = 1;
		}
		++curEvent->countAny;
	    } else {
		curEvent->countAny = curEvent->countDetailed = 1;
	    }
	    break;
	case ButtonPress:
	case ButtonRelease:
	    if (MatchEventNearby(&curEvent->xev, eventPtr)) {
		if (curEvent->xev.xbutton.button == eventPtr->xbutton.button) {
		    ++curEvent->countDetailed;
		} else {
		    curEvent->countDetailed = 1;
		}
		++curEvent->countAny;
	    } else {
		curEvent->countAny = curEvent->countDetailed = 1;
	    }
	    break;
	case EnterNotify:
	case LeaveNotify:
	    if (TestNearbyTime(eventPtr->xcrossing.time, curEvent->xev.xcrossing.time)) {
		++curEvent->countAny;
	    } else {
		curEvent->countAny = 1;
	    }
	    break;
	case PropertyNotify:
	    if (TestNearbyTime(eventPtr->xproperty.time, curEvent->xev.xproperty.time)) {
		++curEvent->countAny;
	    } else {
		curEvent->countAny = 1;
	    }
	    break;
	default:
	    ++curEvent->countAny;
	    break;
	}
    } else {
	curEvent->countAny = curEvent->countDetailed = 1;
    }





    /*
     * Now update the details.
     */

    curEvent->xev = *eventPtr;



    if (flags & KEY) {
	curEvent->detail.info = TkpGetKeySym(dispPtr, eventPtr);



    } else if (flags & BUTTON) {
	curEvent->detail.info = eventPtr->xbutton.button;
    } else if (flags & MOTION) {



	curEvent->detail.info = ButtonNumberFromState(eventPtr->xmotion.state);




    } else if (flags & VIRTUAL) {



	curEvent->detail.name = ((XVirtualEvent *) eventPtr)->name;



    }








    bindPtr->curEvent = curEvent;








    physTables = &bindPtr->lookupTables;







    scriptCount = 0;
    arraySize = 0;
    Tcl_DStringInit(&scripts);

    if ((size_t) numObjects > SIZE_OF_ARRAY(matchPtrBuf)) {
	/* it's unrealistic that the buffer size is too small, but who knows? */
	matchPtrArr = ckalloc(numObjects*sizeof(matchPtrArr[0]));
    }
    memset(matchPtrArr, 0, numObjects*sizeof(matchPtrArr[0]));

    if (!PromArr_IsEmpty(bindPtr->promArr)) {
	for (k = 0; k < (unsigned) numObjects; ++k) {
	    psl[1] = PromArr_Last(bindPtr->promArr);
	    psl[0] = psl[1] - 1;

	    /*

	     * Loop over all promoted bindings, finding the longest matching one.



	     *
	     * Note that we must process all lists, because all matching patterns
	     * have to be promoted. Normally at most one list will be processed, and
	     * usually this list only contains one or two patterns.
	     */




	    for (i = PromArr_Size(bindPtr->promArr); i > 0; --i, --psl[0], --psl[1]) {

		psPtr[0] = MatchPatterns(dispPtr, bindPtr, psl[0], psl[1], i, curEvent, objArr[k], NULL);

		if (IsBetterMatch(matchPtrArr[k], psPtr[0])) {
		    /* we will process it later, because we still may find a pattern with better match */
		    matchPtrArr[k] = psPtr[0];
		}
		if (!PSList_IsEmpty(psl[1])) {
		    /* we have promoted sequences, adjust array size */
		    arraySize = Max(i + 1, arraySize);
		}



	    }
	}
    }

    /*
     * 1. Look for bindings for the specific detail (button and key events).

     * 2. Look for bindings without detail.

     */


    for (k = 0; k < (unsigned) numObjects; ++k) {
	PSList *psSuccList = PromArr_First(bindPtr->promArr);
	PatSeq *bestPtr;


	psl[0] = GetLookupForEvent(physTables, curEvent, objArr[k], 1);
	psl[1] = GetLookupForEvent(physTables, curEvent, objArr[k], 0);

	assert(psl[0] == NULL || psl[0] != psl[1]);


	psPtr[0] = MatchPatterns(dispPtr, bindPtr, psl[0], psSuccList, 0, curEvent, objArr[k], NULL);
	psPtr[1] = MatchPatterns(dispPtr, bindPtr, psl[1], psSuccList, 0, curEvent, objArr[k], NULL);

	if (!PSList_IsEmpty(psSuccList)) {
	    /* we have promoted sequences, adjust array size */
	    arraySize = Max(1u, arraySize);
	}

	bestPtr = psPtr[0] ? psPtr[0] : psPtr[1];

	if (matchPtrArr[k]) {


	    if (IsBetterMatch(matchPtrArr[k], bestPtr)) {
		matchPtrArr[k] = bestPtr;
	    } else {
		/*
		 * We've already found a higher level match, nevertheless it was required to
		 * process the level zero patterns because of possible promotions.
		 */
	    }
	    /*
	     * Now we have to catch up the processing of the script.
	     */
	} else {
	    /*
	     * We have to look whether we can find a better match in virtual table, provided that we
	     * don't have a higher level match.
	     */

	    matchPtrArr[k] = bestPtr;

	    if (eventPtr->type != VirtualEvent) {
		LookupTables *virtTables = &bindInfoPtr->virtualEventTable.lookupTables;
		PatSeq *matchPtr = matchPtrArr[k];
		PatSeq *mPtr;
		PSList *psl[2];

		/*
		 * Note that virtual events cannot promote.
		 */

		psl[0] = GetLookupForEvent(virtTables, curEvent, NULL, 1);
		psl[1] = GetLookupForEvent(virtTables, curEvent, NULL, 0);

		assert(psl[0] == NULL || psl[0] != psl[1]);

		mPtr = MatchPatterns(dispPtr, bindPtr, psl[0], NULL, 0, curEvent, objArr[k], &matchPtr);
		if (mPtr) {
		    matchPtrArr[k] = matchPtr;
		    matchPtr = mPtr;
		}
		if (MatchPatterns(dispPtr, bindPtr, psl[1], NULL, 0, curEvent, objArr[k], &matchPtr)) {
		    matchPtrArr[k] = matchPtr;
		}
	    }
	}

	if (matchPtrArr[k]) {
	    ExpandPercents(winPtr, matchPtrArr[k]->script, curEvent, scriptCount++, &scripts);
	    /* nul is added to the scripts string to separate the various scripts */
	    Tcl_DStringAppend(&scripts, "", 1);
	}
    }

    PromArr_SetSize(bindPtr->promArr, arraySize);

    /*
     * Remove expired pattern sequences.
     */

    for (i = 0, newArraySize = 0; i < arraySize; ++i) {
	PSList *psList = PromArr_Get(bindPtr->promArr, i);
	PSEntry *psEntry;
	PSEntry *psNext;

	for (psEntry = PSList_First(psList); psEntry; psEntry = psNext) {
	    const TkPattern *patPtr;

	    assert(i + 1 < psEntry->psPtr->numPats);

	    psNext = PSList_Next(psEntry);
	    patPtr = &psEntry->psPtr->pats[i + 1];

	    /*
	     * We have to remove the following entries from promotion list (but
	     * only if we don't want to keep it):
	     * ------------------------------------------------------------------
	     * 1) It is marked as expired (see MatchPatterns()).
	     * 2) If we have a Key event, and current entry is matching a Button.
	     * 3) If we have a Button event, and current entry is matching a Key.
	     * 4) If we have a detailed event, current entry it is also detailed,
	     *    we have matching event types, but the details are different.
	     * 5) Current entry has been matched with a different window.
	     */

	    if (psEntry->keepIt) {
		assert(!psEntry->expired);
		psEntry->keepIt = 0;
	    } else if (psEntry->expired
		    || psEntry->window != curEvent->xev.xany.window
		    || (patPtr->info
			&& curEvent->detail.info
			&& patPtr->eventType == (unsigned) curEvent->xev.type
			&& patPtr->info != curEvent->detail.info)) {
		RemoveListEntry(&bindPtr->lookupTables.entryPool, psEntry);
	    } else {
		switch (patPtr->eventType) {
		case ButtonPress:
		case ButtonRelease:
		    if (curEvent->xev.type == KeyPress || curEvent->xev.type == KeyRelease) {
			RemoveListEntry(&bindPtr->lookupTables.entryPool, psEntry);
		    }
		    break;
		case KeyPress:
		case KeyRelease:
		    if (curEvent->xev.type == ButtonPress || curEvent->xev.type == ButtonRelease) {
			RemoveListEntry(&bindPtr->lookupTables.entryPool, psEntry);
		    }
		    break;
		}
	    }
	}

	if (!PSList_IsEmpty(psList)) {
	    /* we still have promoted sequences, adjust array size */
	    newArraySize = Max(i + 1, newArraySize);
	}
    }

    PromArr_SetSize(bindPtr->promArr, newArraySize);

    if (matchPtrArr != matchPtrBuf) {
	ckfree(matchPtrArr);
    }

    if (Tcl_DStringLength(&scripts) == 0) {
	return; /* nothing to do */
    }

    /*
     * Now go back through and evaluate the binding for each object, in order,
     * dealing with "break" and "continue" exceptions appropriately.
     *
     * There are two tricks here:
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     * screen has changed.
     */

    interpState = Tcl_SaveInterpState(interp, TCL_OK);
    screenPtr = &bindInfoPtr->screenInfo;
    oldDispPtr = screenPtr->curDispPtr;
    oldScreen = screenPtr->curScreenIndex;
    if ((dispPtr != screenPtr->curDispPtr)
	    || (Tk_ScreenNumber(tkwin) != screenPtr->curScreenIndex)) {
	screenPtr->curDispPtr = dispPtr;
	screenPtr->curScreenIndex = Tk_ScreenNumber(tkwin);
	ChangeScreen(interp, dispPtr->name, screenPtr->curScreenIndex);
    }

    p = Tcl_DStringValue(&scripts);
    end = p + Tcl_DStringLength(&scripts);

    /*
     * Be careful when dereferencing screenPtr or bindInfoPtr. If we evaluate
     * something that destroys ".", bindInfoPtr would have been freed, but we
     * can tell that by first checking to see if winPtr->mainPtr == NULL.
     */

    Tcl_Preserve(bindInfoPtr);
    while (p < end) {

	int len = (int) strlen(p);
	int code;

	if (!bindInfoPtr->deleted) {
	    screenPtr->bindingDepth++;
	}
	Tcl_AllowExceptions(interp);

	code = Tcl_EvalEx(interp, p, len, TCL_EVAL_GLOBAL);
	p += len + 1;

	if (!bindInfoPtr->deleted) {
	    screenPtr->bindingDepth--;
	}
	if (code != TCL_OK) {
	    if (code == TCL_CONTINUE) {
		/*
		 * Do nothing: just go on to the next command.
		 */
	    } else if (code == TCL_BREAK) {
		break;
	    } else {
		Tcl_AddErrorInfo(interp, "\n    (command bound to event)");
		Tcl_BackgroundException(interp, code);
		break;
	    }

	}
    }

    if (!bindInfoPtr->deleted && (screenPtr->bindingDepth != 0)
	    && ((oldDispPtr != screenPtr->curDispPtr)
		    || (oldScreen != screenPtr->curScreenIndex))) {
	/*
	 * Some other binding script is currently executing, but its screen is
	 * no longer current. Change the current display back again.
	 */

	screenPtr->curDispPtr = oldDispPtr;
	screenPtr->curScreenIndex = oldScreen;
	ChangeScreen(interp, oldDispPtr->name, oldScreen);
    }
    (void) Tcl_RestoreInterpState(interp, interpState);
    Tcl_DStringFree(&scripts);

    Tcl_Release(bindInfoPtr);
}

/*
 *----------------------------------------------------------------------
 *
 * MatchPatterns --
 *
 *	Given a list of pattern sequences and a list of recent events, return
 *	the pattern sequence that best matches the event list, if there is
 *	one.
 *
 *	This function is used in two different ways. In the simplest use,

 *	"object" is NULL and psPtr is a list of pattern sequences, each of
 *	which corresponds to a binding. In this case, the function finds the

 *	pattern sequences that match the event list and returns the most






 *	specific of those, if there is more than one.












 *




 *	In the second case, psPtr is a list of pattern sequences, each of



 *	which corresponds to a definition for a virtual binding. In order for






 *	one of these sequences to "match", it must match the events (as above)


 *	but in addition there must be a binding for its associated virtual



 *	event on the current object. The "object" argument indicates which


 *	object the binding must be for.

 *






 * Results:


 *	The return value is NULL if bestPtr is NULL and no pattern matches the




 *	recent events from bindPtr. Otherwise the return value is the most


 *	specific pattern sequence among bestPtr and all those at psPtr that

 *	match the event list and object. If a pattern sequence other than



 *	bestPtr is returned, then *bestCommandPtr is filled in with a pointer









 *	to the command from the best sequence.

 *
















 * Side effects:



 *	None.




 *

 *----------------------------------------------------------------------


 */



static PatSeq *
MatchPatterns(
    TkDisplay *dispPtr,		/* Display from which the event came. */
    BindingTable *bindPtr,	/* Information about binding table, such as
				 * ring of recent events. */
    PatSeq *psPtr,		/* List of pattern sequences. */
    PatSeq *bestPtr,		/* The best match seen so far, from a previous
				 * call to this function. NULL means no prior
				 * best match. */


    ClientData *objectPtr,	/* If NULL, the sequences at psPtr correspond
				 * to "normal" bindings. If non-NULL, the
				 * sequences at psPtr correspond to virtual
				 * bindings; in order to match each sequence
				 * must correspond to a virtual binding for

				 * which a binding exists for object in

				 * bindPtr. */
    PatSeq **sourcePtrPtr)	/* Filled with the pattern sequence that
				 * contains the eventProc and clientData
				 * associated with the best match. If this
				 * differs from the return value, it is the
				 * virtual event that most closely matched the
				 * return value (a physical event). Not
				 * modified unless a result other than bestPtr
				 * is returned. */
{
    PatSeq *matchPtr, *bestSourcePtr, *sourcePtr;



    bestSourcePtr = *sourcePtrPtr;


    /*
     * Iterate over all the pattern sequences.
     */

    for ( ; psPtr != NULL; psPtr = psPtr->nextSeqPtr) {
	XEvent *eventPtr = &bindPtr->eventRing[bindPtr->curEvent];
	Detail *detailPtr = &bindPtr->detailRing[bindPtr->curEvent];
	TkPattern *patPtr = psPtr->pats;
	Window window = eventPtr->xany.window;
	int patCount, ringCount, flags, state, modMask, i;

	/*



	 * Iterate over all the patterns in a sequence to be sure that they
	 * all match.
	 */




	patCount = psPtr->numPats;
	ringCount = EVENT_BUFFER_SIZE;
	while (patCount > 0) {
	    if (ringCount <= 0) {
		goto nextSequence;
	    }
	    if (eventPtr->xany.type != patPtr->eventType) {
		/*
		 * Most of the event types are considered superfluous in that
		 * they are ignored if they occur in the middle of a pattern
		 * sequence and have mismatching types. The only ones that
		 * cannot be ignored are ButtonPress and ButtonRelease events


		 * (if the next event in the pattern is a KeyPress or
		 * KeyRelease) and KeyPress and KeyRelease events (if the next
		 * pattern event is a ButtonPress or ButtonRelease). Here are
		 * some tricky cases to consider:
		 * 1. Double-Button or Double-Key events.
		 * 2. Double-ButtonRelease or Double-KeyRelease events.
		 * 3. The arrival of various events like Enter and Leave and
		 *    FocusIn and GraphicsExpose between two button presses or
		 *    key presses.

		 * 4. Modifier keys like Shift and Control shouldn't generate
		 *    conflicts with button events.


		 */




		if ((patPtr->eventType == KeyPress)

			|| (patPtr->eventType == KeyRelease)) {
		    if ((eventPtr->xany.type == ButtonPress)
			    || (eventPtr->xany.type == ButtonRelease)) {
			goto nextSequence;


		    }
		} else if ((patPtr->eventType == ButtonPress)
			|| (patPtr->eventType == ButtonRelease)) {
		    if ((eventPtr->xany.type == KeyPress)
			    || (eventPtr->xany.type == KeyRelease)) {
			/*
			 * Ignore key events if they are modifier keys.
			 */

			for (i = 0; i < dispPtr->numModKeyCodes; i++) {
			    if (dispPtr->modKeyCodes[i]
				    == eventPtr->xkey.keycode) {
				/*
				 * This key is a modifier key, so ignore it.


				 */


				goto nextEvent;
















			    }
			}
			goto nextSequence;
		    }
		}
		goto nextEvent;
	    }
	    if (eventPtr->xany.type == CreateNotify
		    && eventPtr->xcreatewindow.parent != window) {
		goto nextSequence;
	    } else if (eventPtr->xany.window != window) {
		goto nextSequence;
	    }

	    /*
	     * Note: it's important for the keysym check to go before the
	     * modifier check, so we can ignore unwanted modifier keys before
	     * choking on the modifier check.


	     */



	    if ((patPtr->detail.clientData != 0)
		    && (patPtr->detail.clientData != detailPtr->clientData)) {
		/*
		 * The detail appears not to match. However, if the event is a
		 * KeyPress for a modifier key then just ignore the event.
		 * Otherwise event sequences like "aD" never match because the
		 * shift key goes down between the "a" and the "D".
		 */










		if (eventPtr->xany.type == KeyPress) {
		    for (i = 0; i < dispPtr->numModKeyCodes; i++) {
			if (dispPtr->modKeyCodes[i] == eventPtr->xkey.keycode) {
			    goto nextEvent;


			}
		    }
		}
		goto nextSequence;
	    }
	    flags = flagArray[eventPtr->type];
	    if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
		state = eventPtr->xkey.state;
	    } else if (flags & CROSSING) {
		state = eventPtr->xcrossing.state;
	    } else {
		state = 0;
	    }
	    if (patPtr->needMods != 0) {
		modMask = patPtr->needMods;
		if ((modMask & META_MASK) && (dispPtr->metaModMask != 0)) {
		    modMask = (modMask & ~META_MASK) | dispPtr->metaModMask;
		}
		if ((modMask & ALT_MASK) && (dispPtr->altModMask != 0)) {
		    modMask = (modMask & ~ALT_MASK) | dispPtr->altModMask;
		}

		if ((state & META_MASK) && (dispPtr->metaModMask != 0)) {
		    state = (state & ~META_MASK) | dispPtr->metaModMask;
		}
		if ((state & ALT_MASK) && (dispPtr->altModMask != 0)) {
		    state = (state & ~ALT_MASK) | dispPtr->altModMask;
		}

		if ((state & modMask) != modMask) {
		    goto nextSequence;
		}
	    }
	    if (psPtr->flags & PAT_NEARBY) {
		XEvent *firstPtr = &bindPtr->eventRing[bindPtr->curEvent];
		long timeDiff;

		timeDiff = ((long)firstPtr->xkey.time -
			    (long)eventPtr->xkey.time);
		if ((firstPtr->xkey.x_root
			    < (eventPtr->xkey.x_root - NEARBY_PIXELS))
			|| (firstPtr->xkey.x_root
			    > (eventPtr->xkey.x_root + NEARBY_PIXELS))
			|| (firstPtr->xkey.y_root
			    < (eventPtr->xkey.y_root - NEARBY_PIXELS))
			|| (firstPtr->xkey.y_root
			    > (eventPtr->xkey.y_root + NEARBY_PIXELS))
			|| (timeDiff > NEARBY_MS)) {
		    goto nextSequence;
		}
	    }
	    patPtr++;
	    patCount--;
	nextEvent:
	    if (eventPtr == bindPtr->eventRing) {
		eventPtr = &bindPtr->eventRing[EVENT_BUFFER_SIZE-1];
		detailPtr = &bindPtr->detailRing[EVENT_BUFFER_SIZE-1];
	    } else {
		eventPtr--;
		detailPtr--;
	    }
	    ringCount--;
	}

	matchPtr = psPtr;
	sourcePtr = psPtr;

	if (objectPtr != NULL) {
	    int iVirt;
	    VirtualOwners *voPtr;
	    PatternTableKey key;

	    /*
	     * The sequence matches the physical constraints. Is this object
	     * interested in any of the virtual events that correspond to this
	     * sequence?
	     */

	    voPtr = psPtr->voPtr;

	    memset(&key, 0, sizeof(key));
	    key.object = *objectPtr;
	    key.type = VirtualEvent;
	    key.detail.clientData = 0;

	    for (iVirt = 0; iVirt < voPtr->numOwners; iVirt++) {
		Tcl_HashEntry *hPtr = voPtr->owners[iVirt];

		key.detail.name = (Tk_Uid) Tcl_GetHashKey(hPtr->tablePtr,
			hPtr);
		hPtr = Tcl_FindHashEntry(&bindPtr->patternTable,
			(char *) &key);
		if (hPtr != NULL) {
		    /*
		     * This tag is interested in this virtual event and its
		     * corresponding physical event is a good match with the
		     * virtual event's definition.
		     */

		    PatSeq *virtMatchPtr = Tcl_GetHashValue(hPtr);

		    if ((virtMatchPtr->numPats != 1)
			    || (virtMatchPtr->nextSeqPtr != NULL)) {
			Tcl_Panic("MatchPattern: badly constructed virtual event");
		    }
		    sourcePtr = virtMatchPtr;
		    goto match;
		}
	    }

	    /*
	     * The physical event matches a virtual event's definition, but
	     * the tag isn't interested in it.
	     */

	    goto nextSequence;
	}
    match:

	/*
	 * This sequence matches. If we've already got another match, pick
	 * whichever is most specific. Detail is most important, then
	 * needMods.
	 */

	if (bestPtr != NULL) {
	    TkPattern *patPtr2;

	    if (matchPtr->numPats != bestPtr->numPats) {
		if (bestPtr->numPats > matchPtr->numPats) {
		    goto nextSequence;
		} else {
		    goto newBest;
		}
	    }
	    for (i = 0, patPtr = matchPtr->pats, patPtr2 = bestPtr->pats;
		    i < matchPtr->numPats; i++, patPtr++, patPtr2++) {
		if (patPtr->detail.clientData != patPtr2->detail.clientData) {
		    if (patPtr->detail.clientData == 0) {
			goto nextSequence;
		    } else {
			goto newBest;
		    }
		}
		if (patPtr->needMods != patPtr2->needMods) {
		    if ((patPtr->needMods & patPtr2->needMods)
			    == patPtr->needMods) {
			goto nextSequence;
		    } else if ((patPtr->needMods & patPtr2->needMods)
			    == patPtr2->needMods) {
			goto newBest;
		    }
		}
	    }

	    /*
	     * Tie goes to current best pattern.
	     *
	     * (1) For virtual vs. virtual, the least recently defined virtual
	     * wins, because virtuals are examined in order of definition.
	     * This order is _not_ guaranteed in the documentation.
	     *
	     * (2) For virtual vs. physical, the physical wins because all the
	     * physicals are examined before the virtuals. This order is
	     * guaranteed in the documentation.
	     *
	     * (3) For physical vs. physical pattern, the most recently
	     * defined physical wins, because physicals are examined in
	     * reverse order of definition. This order is guaranteed in the
	     * documentation.
	     */

	    goto nextSequence;
	}
    newBest:
	bestPtr = matchPtr;
	bestSourcePtr = sourcePtr;

    nextSequence:
	continue;
    }

    *sourcePtrPtr = bestSourcePtr;
    return bestPtr;
}

/*
 *--------------------------------------------------------------
 *
 * ExpandPercents --






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     * screen has changed.
     */

    interpState = Tcl_SaveInterpState(interp, TCL_OK);
    screenPtr = &bindInfoPtr->screenInfo;
    oldDispPtr = screenPtr->curDispPtr;
    oldScreen = screenPtr->curScreenIndex;

    if (dispPtr != screenPtr->curDispPtr || Tk_ScreenNumber(tkwin) != screenPtr->curScreenIndex) {
	screenPtr->curDispPtr = dispPtr;
	screenPtr->curScreenIndex = Tk_ScreenNumber(tkwin);
	ChangeScreen(interp, dispPtr->name, screenPtr->curScreenIndex);
    }




    /*
     * Be careful when dereferencing screenPtr or bindInfoPtr. If we evaluate
     * something that destroys ".", bindInfoPtr would have been freed, but we
     * can tell that by first checking to see if winPtr->mainPtr == NULL.
     */

    Tcl_Preserve(bindInfoPtr);

    for (p = Tcl_DStringValue(&scripts), end = p + Tcl_DStringLength(&scripts); p < end; ) {
	unsigned len = strlen(p);
	int code;

	if (!bindInfoPtr->deleted) {
	    ++screenPtr->bindingDepth;
	}
	Tcl_AllowExceptions(interp);

	code = Tcl_EvalEx(interp, p, len, TCL_EVAL_GLOBAL);
	p += len + 1;

	if (!bindInfoPtr->deleted) {
	    --screenPtr->bindingDepth;
	}
	if (code != TCL_OK && code != TCL_CONTINUE) {




	    if (code != TCL_BREAK) {


		Tcl_AddErrorInfo(interp, "\n    (command bound to event)");
		Tcl_BackgroundException(interp, code);

	    }
	    break;
	}
    }

    if (!bindInfoPtr->deleted
	    && screenPtr->bindingDepth > 0
	    && (oldDispPtr != screenPtr->curDispPtr || oldScreen != screenPtr->curScreenIndex)) {
	/*
	 * Some other binding script is currently executing, but its screen is
	 * no longer current. Change the current display back again.
	 */

	screenPtr->curDispPtr = oldDispPtr;
	screenPtr->curScreenIndex = oldScreen;
	ChangeScreen(interp, oldDispPtr->name, oldScreen);
    }
    Tcl_RestoreInterpState(interp, interpState);
    Tcl_DStringFree(&scripts);

    Tcl_Release(bindInfoPtr);
}

/*
 *----------------------------------------------------------------------
 *
 * MatchPatterns --
 *
 *	Given a list of pattern sequences and the recent event, return
 *	the pattern sequence that best matches this event, if there is
 *	one.
 *
 * Results:
 *
 *	The return value is NULL if no match is found. Otherwise the

 *	return value is the most specific pattern sequence among all
 *	those that match the event table.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

/* helper function */
static int
VirtPatIsBound(
    Tk_BindingTable bindPtr,	/* Table in which to look for bindings. */
    PatSeq *psPtr,		/* Test this pattern. */
    ClientData object,		/* Check for this binding tag. */
    PatSeq **physPtrPtr)	/* Input: the best physical event.
    				 * Output: the physical event associated with matching virtual event. */
{
    PatternTableKey key;
    const struct VirtOwners *owners;
    unsigned i;

    assert(bindPtr);
    assert(psPtr);
    assert(!psPtr->object);
    assert(physPtrPtr);

    if (*physPtrPtr) {
	const TkPattern *physPatPtr = (*physPtrPtr)->pats;
	const TkPattern *virtPatPtr = psPtr->pats;

	if (physPatPtr->info || !virtPatPtr->info) {
	    if (IsSubsetOf(virtPatPtr->modMask, physPatPtr->modMask)) {
		return 0; /* we cannot surpass this match */
	    }
	}
    }

    /* otherwise on some systems the key contains uninitialized bytes */
    memset(&key, 0, sizeof(key));

    key.object = object;
    key.type = VirtualEvent;
    owners = psPtr->ptr.owners;

    for (i = 0; i < VirtOwners_Size(owners); ++i) {
	Tcl_HashEntry *hPtr = VirtOwners_Get(owners, i);

	key.detail.name = (Tk_Uid) Tcl_GetHashKey(hPtr->tablePtr, hPtr);

	if ((hPtr = Tcl_FindHashEntry(&bindPtr->lookupTables.patternTable, (char *) &key))) {
	    /* The physical event matches this virtual event's definition. */
	    *physPtrPtr = (PatSeq *) Tcl_GetHashValue(hPtr);
	    return 1;
	}
    }

    return 0;
}

/* helper function */
static int
Compare(
    const PatSeq *fstMatchPtr,
    const PatSeq *sndMatchPtr) /* most recent match */
{
    int diff;

    if (!fstMatchPtr) { return +1; }
    assert(sndMatchPtr);
    diff = CountSpecialized(fstMatchPtr, sndMatchPtr);
    return diff ? diff : (int) sndMatchPtr->count - (int) fstMatchPtr->count;
}

/* helper function */
static int
CompareModMasks(
    const PSModMaskArr *fstModMaskArr,
    const PSModMaskArr *sndModMaskArr,
    ModMask fstModMask,
    ModMask sndModMask)
{
    int fstCount = 0;
    int sndCount = 0;
    int i;

    if (PSModMaskArr_IsEmpty(fstModMaskArr)) {
	if (!PSModMaskArr_IsEmpty(sndModMaskArr)) {
	    for (i = PSModMaskArr_Size(sndModMaskArr) - 1; i >= 0; --i) {
		if (*PSModMaskArr_Get(sndModMaskArr, i)) {
		    ++sndCount;
		}
	    }
	}
    } else if (PSModMaskArr_IsEmpty(sndModMaskArr)) {
	for (i = PSModMaskArr_Size(fstModMaskArr) - 1; i >= 0; --i) {
	    if (*PSModMaskArr_Get(fstModMaskArr, i)) {
		++fstCount;
	    }
	}
    } else {
	assert(PSModMaskArr_Size(fstModMaskArr) == PSModMaskArr_Size(sndModMaskArr));

	for (i = PSModMaskArr_Size(fstModMaskArr) - 1; i >= 0; --i) {
	    ModMask fstModMask = *PSModMaskArr_Get(fstModMaskArr, i);
	    ModMask sndModMask = *PSModMaskArr_Get(sndModMaskArr, i);

	    if (IsSubsetOf(fstModMask, sndModMask)) { ++sndCount; }
	    if (IsSubsetOf(sndModMask, fstModMask)) { ++fstCount; }
	}
    }

    /* Finally compare modifier masks of last pattern. */

    if (IsSubsetOf(fstModMask, sndModMask)) { ++sndCount; }
    if (IsSubsetOf(sndModMask, fstModMask)) { ++fstCount; }

    return fstCount - sndCount;
}

static PatSeq *
MatchPatterns(
    TkDisplay *dispPtr,		/* Display from which the event came. */
    Tk_BindingTable bindPtr,	/* Table in which to look for bindings. */

    PSList *psList,		/* List of potentially matching patterns, can be NULL. */

    PSList *psSuccList,		/* Add all matching higher-level pattern sequences to this list.
    				 * Can be NULL. */
    unsigned patIndex,		/* Match only this tag in sequence. */
    const Event *curEvent,	/* Match this event. */
    ClientData object,		/* Check for this binding tag. */
    PatSeq **physPtrPtr)	/* Input: the best physical event; NULL if we test physical events.
    				 * Output: the associated physical event for the best matching virtual
				 * event; NULL when we match physical events. */

{
    Window window;
    PSEntry *psEntry;
    PatSeq *bestPtr;
    PatSeq *bestPhysPtr;

    ModMask bestModMask;
    const PSModMaskArr *bestModMaskArr = NULL;





    assert(dispPtr);
    assert(bindPtr);
    assert(curEvent);

    if (!psList) {
	return NULL;
    }




    bestModMask = 0;
    bestPtr = NULL;
    bestPhysPtr = NULL;

    window = curEvent->xev.xany.window;



    for (psEntry = PSList_First(psList); psEntry; psEntry = PSList_Next(psEntry)) {
	if (patIndex == 0 || psEntry->window == window) {
	    PatSeq* psPtr = psEntry->psPtr;




	    assert(TEST_PSENTRY(psPtr));
	    assert((psPtr->object == NULL) == (physPtrPtr != NULL));
	    assert(psPtr->object || patIndex == 0);
	    assert(psPtr->numPats > patIndex);





	    if (psPtr->object





		    ? psPtr->object == object
		    : VirtPatIsBound(bindPtr, psPtr, object, physPtrPtr)) {
		TkPattern *patPtr = psPtr->pats + patIndex;



		if (patPtr->eventType == (unsigned) curEvent->xev.type
			&& (curEvent->xev.type != CreateNotify
				|| curEvent->xev.xcreatewindow.parent == window)
			&& (!patPtr->name || patPtr->name == curEvent->detail.name)
			&& (!patPtr->info || patPtr->info == curEvent->detail.info)) {
		    /*
		     * Resolve the modifier mask for Alt and Mod keys. Unfortunately this

		     * cannot be done in ParseEventDescription, otherwise this function would
		     * be the better place.
		     */
		    ModMask modMask = ResolveModifiers(dispPtr, patPtr->modMask);
		    ModMask curModMask = ResolveModifiers(dispPtr, bindPtr->curModMask);

		    psEntry->expired = 1; /* remove it from promotion list */

		    if ((modMask & ~curModMask) == 0) {
			unsigned count = patPtr->info ? curEvent->countDetailed : curEvent->countAny;



			if (patIndex < PSModMaskArr_Size(psEntry->lastModMaskArr)) {
			    PSModMaskArr_Set(psEntry->lastModMaskArr, patIndex, &modMask);
			}




			/*
			 * This pattern is finally matching.
			 */

			if (psPtr->numPats == patIndex + 1) {

			    if (patPtr->count <= count) {
				/*
				 * This is also a final pattern.
				 * We always prefer the pattern with better match.
				 * If completely equal than prefer most recently defined pattern.
				 */

				int cmp = Compare(bestPtr, psPtr);

				if (cmp == 0) {
				    cmp = CompareModMasks(psEntry->lastModMaskArr, bestModMaskArr,
					    modMask, bestModMask);
				}

				if (cmp > 0 || (cmp == 0 && bestPtr->number < psPtr->number)) {
				    bestPtr = psPtr;
				    bestModMask = modMask;
				    bestModMaskArr = psEntry->lastModMaskArr;
				    if (physPtrPtr) {
					bestPhysPtr = *physPtrPtr;
				    }
				}
			    } else {
				DEBUG(psEntry->expired = 0);
				psEntry->keepIt = 1; /* don't remove it from promotion list */
			    }









			} else if (psSuccList) {



			    /*



			     * Not a final pattern, but matching, so promote it to next level.
			     * But do not promote if count of current pattern is not yet reached.
			     */
			    if (patPtr->count == psEntry->count) {
				PSEntry *psNewEntry;

				assert(!patPtr->name);







				psNewEntry = MakeListEntry(
				    &bindPtr->lookupTables.entryPool, psPtr, psPtr->modMaskUsed);
				if (!PSModMaskArr_IsEmpty(psNewEntry->lastModMaskArr)) {
				    PSModMaskArr_Set(psNewEntry->lastModMaskArr, patIndex, &modMask);
				}
				assert(psNewEntry->keepIt);
				assert(psNewEntry->count == 1u);
				PSList_Append(psSuccList, psNewEntry);
				psNewEntry->window = window; /* bind to current window */
			    } else {
				assert(psEntry->count < patPtr->count);
				DEBUG(psEntry->expired = 0);

				psEntry->count += 1;
				psEntry->keepIt = 1; /* don't remove it from promotion list */
			    }
			}
		    }
		}

	    }







	}




    }











































































































    if (bestPhysPtr) {

	assert(physPtrPtr);


























	*physPtrPtr = bestPhysPtr;
















    }











    return bestPtr;
}

/*
 *--------------------------------------------------------------
 *
 * ExpandPercents --
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943

1944




1945
1946
1947
1948
1949
1950
1951
1952
1953
1954




1955
1956
1957
1958
1959
1960
1961
1962

1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976

1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286

2287
2288
2289

2290
2291
2292
2293
2294
2295
2296


2297
2298
2299
2300
2301
2302
2303
 *	None.
 *
 *--------------------------------------------------------------
 */

static void
ExpandPercents(
    TkWindow *winPtr,		/* Window where event occurred: needed to get
				 * input context. */
    const char *before,		/* Command containing percent expressions to
				 * be replaced. */
    XEvent *eventPtr,		/* X event containing information to be used
				 * in % replacements. */
    KeySym keySym,		/* KeySym: only relevant for KeyPress and
				 * KeyRelease events). */
    unsigned int scriptCount,	/* The number of script-based binding patterns
				 * matched so far for this event. */
    Tcl_DString *dsPtr)		/* Dynamic string in which to append new
				 * command. */
{
    int spaceNeeded, cvtFlags;	/* Used to substitute string as proper Tcl
				 * list element. */
    int number, flags, length;
#define NUM_SIZE 40
    const char *string;
    Tcl_DString buf;

    char numStorage[NUM_SIZE+1];





    Tcl_DStringInit(&buf);

    if (eventPtr->type < TK_LASTEVENT) {
	flags = flagArray[eventPtr->type];
    } else {
	flags = 0;
    }

    while (1) {




	/*
	 * Find everything up to the next % character and append it to the
	 * result string.
	 */

	for (string = before; (*string != 0) && (*string != '%'); string++) {
	    /* Empty loop body. */
	}

	if (string != before) {
	    Tcl_DStringAppend(dsPtr, before, (int) (string-before));
	    before = string;
	}
	if (*before == 0) {
	    break;
	}

	/*
	 * There's a percent sequence here. Process it.
	 */

	number = 0;
	string = "??";

	switch (before[1]) {
	case '#':
	    number = eventPtr->xany.serial;
	    goto doNumber;
	case 'a':
	    if (flags & CONFIG) {
		TkpPrintWindowId(numStorage, eventPtr->xconfigure.above);
		string = numStorage;
	    }
	    goto doString;
	case 'b':
	    if (flags & BUTTON) {
		number = eventPtr->xbutton.button;
		goto doNumber;
	    }
	    goto doString;
	case 'c':
	    if (flags & EXPOSE) {
		number = eventPtr->xexpose.count;
		goto doNumber;
	    }
	    goto doString;
	case 'd':
	    if (flags & (CROSSING|FOCUS)) {
		if (flags & FOCUS) {
		    number = eventPtr->xfocus.detail;
		} else {
		    number = eventPtr->xcrossing.detail;
		}
		string = TkFindStateString(notifyDetail, number);
	    } else if (flags & CONFIGREQ) {
		if (eventPtr->xconfigurerequest.value_mask & CWStackMode) {
		    string = TkFindStateString(configureRequestDetail,
			    eventPtr->xconfigurerequest.detail);
		} else {
		    string = "";
		}
	    } else if (flags & VIRTUAL) {
		XVirtualEvent *vePtr = (XVirtualEvent *) eventPtr;

		if (vePtr->user_data != NULL) {
		    string = Tcl_GetString(vePtr->user_data);
		} else {
		    string = "";
		}
	    }
	    goto doString;
	case 'f':
	    if (flags & CROSSING) {
		number = eventPtr->xcrossing.focus;
		goto doNumber;
	    }
	    goto doString;
	case 'h':
	    if (flags & EXPOSE) {
		number = eventPtr->xexpose.height;
	    } else if (flags & CONFIG) {
		number = eventPtr->xconfigure.height;
	    } else if (flags & CREATE) {
		number = eventPtr->xcreatewindow.height;
	    } else if (flags & CONFIGREQ) {
		number = eventPtr->xconfigurerequest.height;
	    } else if (flags & RESIZEREQ) {
		number = eventPtr->xresizerequest.height;
	    } else {
		goto doString;
	    }
	    goto doNumber;
	case 'i':
	    if (flags & CREATE) {
		TkpPrintWindowId(numStorage, eventPtr->xcreatewindow.window);
	    } else if (flags & CONFIGREQ) {
		TkpPrintWindowId(numStorage,
			eventPtr->xconfigurerequest.window);
	    } else if (flags & MAPREQ) {
		TkpPrintWindowId(numStorage, eventPtr->xmaprequest.window);
	    } else {
		TkpPrintWindowId(numStorage, eventPtr->xany.window);
	    }
	    string = numStorage;
	    goto doString;
	case 'k':
	    if ((flags & KEY) && (eventPtr->type != MouseWheelEvent)) {
		number = eventPtr->xkey.keycode;
		goto doNumber;
	    }
	    goto doString;
	case 'm':
	    if (flags & CROSSING) {
		number = eventPtr->xcrossing.mode;
		string = TkFindStateString(notifyMode, number);
	    } else if (flags & FOCUS) {
		number = eventPtr->xfocus.mode;
		string = TkFindStateString(notifyMode, number);
	    }
	    goto doString;
	case 'o':
	    if (flags & CREATE) {
		number = eventPtr->xcreatewindow.override_redirect;
	    } else if (flags & MAP) {
		number = eventPtr->xmap.override_redirect;
	    } else if (flags & REPARENT) {
		number = eventPtr->xreparent.override_redirect;
	    } else if (flags & CONFIG) {
		number = eventPtr->xconfigure.override_redirect;
	    } else {
		goto doString;
	    }
	    goto doNumber;
	case 'p':
	    if (flags & CIRC) {
		string = TkFindStateString(circPlace,
			eventPtr->xcirculate.place);
	    } else if (flags & CIRCREQ) {
		string = TkFindStateString(circPlace,
			eventPtr->xcirculaterequest.place);
	    }
	    goto doString;
	case 's':
	    if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
		number = eventPtr->xkey.state;
		goto doNumber;
	    } else if (flags & CROSSING) {
		number = eventPtr->xcrossing.state;
		goto doNumber;
	    } else if (flags & PROP) {
		string = TkFindStateString(propNotify,
			eventPtr->xproperty.state);
	    } else if (flags & VISIBILITY) {
		string = TkFindStateString(visNotify,
			eventPtr->xvisibility.state);
	    }
	    goto doString;
	case 't':
	    if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
		number = (int) eventPtr->xkey.time;
	    } else if (flags & CROSSING) {
		number = (int) eventPtr->xcrossing.time;
	    } else if (flags & PROP) {
		number = (int) eventPtr->xproperty.time;
	    } else {
		goto doString;
	    }
	    goto doNumber;
	case 'v':
	    number = eventPtr->xconfigurerequest.value_mask;
	    goto doNumber;
	case 'w':
	    if (flags & EXPOSE) {
		number = eventPtr->xexpose.width;
	    } else if (flags & CONFIG) {
		number = eventPtr->xconfigure.width;
	    } else if (flags & CREATE) {
		number = eventPtr->xcreatewindow.width;
	    } else if (flags & CONFIGREQ) {
		number = eventPtr->xconfigurerequest.width;
	    } else if (flags & RESIZEREQ) {
		number = eventPtr->xresizerequest.width;
	    } else {
		goto doString;
	    }
	    goto doNumber;
	case 'x':
	    if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
		number = eventPtr->xkey.x;
	    } else if (flags & CROSSING) {
		number = eventPtr->xcrossing.x;
	    } else if (flags & EXPOSE) {
		number = eventPtr->xexpose.x;
	    } else if (flags & (CREATE|CONFIG|GRAVITY)) {
		number = eventPtr->xcreatewindow.x;
	    } else if (flags & REPARENT) {
		number = eventPtr->xreparent.x;
	    } else if (flags & CREATE) {
		number = eventPtr->xcreatewindow.x;
	    } else if (flags & CONFIGREQ) {
		number = eventPtr->xconfigurerequest.x;
	    } else {
		goto doString;
	    }
	    goto doNumber;
	case 'y':
	    if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
		number = eventPtr->xkey.y;
	    } else if (flags & EXPOSE) {
		number = eventPtr->xexpose.y;
	    } else if (flags & (CREATE|CONFIG|GRAVITY)) {
		number = eventPtr->xcreatewindow.y;
	    } else if (flags & REPARENT) {
		number = eventPtr->xreparent.y;
	    } else if (flags & CROSSING) {
		number = eventPtr->xcrossing.y;
	    } else if (flags & CREATE) {
		number = eventPtr->xcreatewindow.y;
	    } else if (flags & CONFIGREQ) {
		number = eventPtr->xconfigurerequest.y;
	    } else {
		goto doString;
	    }
	    goto doNumber;
	case 'A':
	    if ((flags & KEY) && (eventPtr->type != MouseWheelEvent)) {
		Tcl_DStringFree(&buf);
		string = TkpGetString(winPtr, eventPtr, &buf);
	    }
	    goto doString;
	case 'B':
	    if (flags & CREATE) {
		number = eventPtr->xcreatewindow.border_width;
	    } else if (flags & CONFIGREQ) {
		number = eventPtr->xconfigurerequest.border_width;
	    } else if (flags & CONFIG) {
		number = eventPtr->xconfigure.border_width;
	    } else {
		goto doString;
	    }
	    goto doNumber;
	case 'D':
	    /*
	     * This is used only by the MouseWheel event.
	     */

	    if ((flags & KEY) && (eventPtr->type == MouseWheelEvent)) {
		number = eventPtr->xkey.keycode;
		goto doNumber;
	    }
	    goto doString;
	case 'E':
	    number = (int) eventPtr->xany.send_event;
	    goto doNumber;
	case 'K':
	    if ((flags & KEY) && (eventPtr->type != MouseWheelEvent)) {
		const char *name = TkKeysymToString(keySym);

		if (name != NULL) {
		    string = name;
		}
	    }
	    goto doString;
	case 'M':
	    number = scriptCount;
	    goto doNumber;
	case 'N':
	    if ((flags & KEY) && (eventPtr->type != MouseWheelEvent)) {
		number = (int) keySym;
		goto doNumber;
	    }
	    goto doString;
	case 'P':
	    if (flags & PROP) {
		string = Tk_GetAtomName((Tk_Window) winPtr,
			eventPtr->xproperty.atom);
	    }
	    goto doString;
	case 'R':
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		TkpPrintWindowId(numStorage, eventPtr->xkey.root);
		string = numStorage;
	    }
	    goto doString;
	case 'S':
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		TkpPrintWindowId(numStorage, eventPtr->xkey.subwindow);
		string = numStorage;
	    }
	    goto doString;
	case 'T':
	    number = eventPtr->type;
	    goto doNumber;
	case 'W': {
	    Tk_Window tkwin;

	    tkwin = Tk_IdToWindow(eventPtr->xany.display,
		    eventPtr->xany.window);
	    if (tkwin != NULL) {
		string = Tk_PathName(tkwin);
	    } else {
		string = "??";
	    }
	    goto doString;
	}
	case 'X':
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {

		number = eventPtr->xkey.x_root;
		Tk_IdToWindow(eventPtr->xany.display,
			eventPtr->xany.window);
		goto doNumber;
	    }
	    goto doString;
	case 'Y':
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {

		number = eventPtr->xkey.y_root;
		Tk_IdToWindow(eventPtr->xany.display,
			eventPtr->xany.window);
		goto doNumber;
	    }
	    goto doString;
	default:
	    numStorage[0] = before[1];
	    numStorage[1] = '\0';
	    string = numStorage;
	    goto doString;
	}

    doNumber:
	sprintf(numStorage, "%d", number);
	string = numStorage;


    doString:
	spaceNeeded = Tcl_ScanElement(string, &cvtFlags);
	length = Tcl_DStringLength(dsPtr);

	Tcl_DStringSetLength(dsPtr, length + spaceNeeded);
	spaceNeeded = Tcl_ConvertElement(string,
		Tcl_DStringValue(dsPtr) + length,
		cvtFlags | TCL_DONT_USE_BRACES);
	Tcl_DStringSetLength(dsPtr, length + spaceNeeded);
	before += 2;
    }


    Tcl_DStringFree(&buf);
}

/*
 *----------------------------------------------------------------------
 *
 * ChangeScreen --






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2900
2901
2902
2903
2904
2905
2906
2907

2908

2909



2910
2911
2912

2913


2914


2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925



2926

2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937


2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966

2967
2968
2969
2970
2971

2972
2973
2974
2975



2976

2977
2978
2979
2980

2981
2982
2983
2984
2985


2986


2987

2988
2989
2990
2991

2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004


3005
3006
3007
3008
3009
3010
3011

3012
3013
3014
3015
3016
3017
3018
3019
3020
3021

3022
3023
3024
3025

3026
3027

3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039


3040
3041
3042
3043
3044

3045
3046

3047
3048
3049
3050
3051

3052
3053

3054
3055

3056
3057

3058
3059
3060
3061
3062
3063
3064
3065
3066


3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082


3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099


3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116


3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131


3132
3133
3134
3135
3136
3137

3138
3139

3140
3141
3142
3143
3144
3145
3146
3147

3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158

3159
3160
3161
3162
3163

3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182



3183
3184


3185
3186
3187
3188
3189

3190



3191
3192
3193
3194

3195



3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216

3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
 *	None.
 *
 *--------------------------------------------------------------
 */

static void
ExpandPercents(
    TkWindow *winPtr,		/* Window where event occurred: needed to get input context. */

    const char *before,		/* Command containing percent expressions to be replaced. */

    Event *eventPtr,		/* Event containing information to be used in % replacements. */



    unsigned scriptCount,	/* The number of script-based binding patterns matched so far for
    				 * this event. */
    Tcl_DString *dsPtr)		/* Dynamic string in which to append new command. */

{


    unsigned flags;


    Tcl_DString buf;
    XEvent *evPtr;

    assert(winPtr);
    assert(before);
    assert(eventPtr);
    assert(dsPtr);

    Tcl_DStringInit(&buf);
    evPtr = &eventPtr->xev;
    flags = (evPtr->type < TK_LASTEVENT) ? flagArray[evPtr->type] : 0;





    while (1) {
	char numStorage[TCL_INTEGER_SPACE];
	const char *string;
	Tcl_WideInt number;

	/*
	 * Find everything up to the next % character and append it to the
	 * result string.
	 */

	for (string = before; *string && *string != '%'; ++string)


	    ;
	if (string != before) {
	    Tcl_DStringAppend(dsPtr, before, string - before);
	    before = string;
	}
	if (!*before) {
	    break;
	}

	/*
	 * There's a percent sequence here. Process it.
	 */

	number = NO_NUMBER;
	string = "??";

	switch (before[1]) {
	case '#':
	    number = evPtr->xany.serial;
	    break;
	case 'a':
	    if (flags & CONFIG) {
		TkpPrintWindowId(numStorage, evPtr->xconfigure.above);
		string = numStorage;
	    }
	    break;
	case 'b':
	    if (flags & BUTTON) {
		number = evPtr->xbutton.button;

	    }
	    break;
	case 'c':
	    if (flags & EXPOSE) {
		number = evPtr->xexpose.count;

	    }
	    break;
	case 'd':
	    if (flags & (CROSSING|FOCUS)) {



		int detail = (flags & FOCUS) ? evPtr->xfocus.detail : evPtr->xcrossing.detail;

		string = TkFindStateString(notifyDetail, detail);
	    } else if (flags & CONFIGREQ) {
		if (evPtr->xconfigurerequest.value_mask & CWStackMode) {
		    string = TkFindStateString(configureRequestDetail, evPtr->xconfigurerequest.detail);

		} else {
		    string = "";
		}
	    } else if (flags & VIRTUAL) {
		XVirtualEvent *vePtr = (XVirtualEvent *) evPtr;


		string = vePtr->user_data ? Tcl_GetString(vePtr->user_data) : "";


	    }

	    break;
	case 'f':
	    if (flags & CROSSING) {
		number = evPtr->xcrossing.focus;

	    }
	    break;
	case 'h':
	    if (flags & EXPOSE) {
		number = evPtr->xexpose.height;
	    } else if (flags & CONFIG) {
		number = evPtr->xconfigure.height;
	    } else if (flags & CREATE) {
		number = evPtr->xcreatewindow.height;
	    } else if (flags & CONFIGREQ) {
		number = evPtr->xconfigurerequest.height;
	    } else if (flags & RESIZEREQ) {
		number = evPtr->xresizerequest.height;


	    }
	    break;
	case 'i':
	    if (flags & CREATE) {
		TkpPrintWindowId(numStorage, evPtr->xcreatewindow.window);
	    } else if (flags & CONFIGREQ) {
		TkpPrintWindowId(numStorage, evPtr->xconfigurerequest.window);

	    } else if (flags & MAPREQ) {
		TkpPrintWindowId(numStorage, evPtr->xmaprequest.window);
	    } else {
		TkpPrintWindowId(numStorage, evPtr->xany.window);
	    }
	    string = numStorage;
	    break;
	case 'k':
	    if ((flags & KEY) && evPtr->type != MouseWheelEvent) {
		number = evPtr->xkey.keycode;

	    }
	    break;
	case 'm':
	    if (flags & CROSSING) {

		string = TkFindStateString(notifyMode, evPtr->xcrossing.mode);
	    } else if (flags & FOCUS) {

		string = TkFindStateString(notifyMode, evPtr->xfocus.mode);
	    }
	    break;
	case 'o':
	    if (flags & CREATE) {
		number = evPtr->xcreatewindow.override_redirect;
	    } else if (flags & MAP) {
		number = evPtr->xmap.override_redirect;
	    } else if (flags & REPARENT) {
		number = evPtr->xreparent.override_redirect;
	    } else if (flags & CONFIG) {
		number = evPtr->xconfigure.override_redirect;


	    }
	    break;
	case 'p':
	    if (flags & CIRC) {
		string = TkFindStateString(circPlace, evPtr->xcirculate.place);

	    } else if (flags & CIRCREQ) {
		string = TkFindStateString(circPlace, evPtr->xcirculaterequest.place);

	    }
	    break;
	case 's':
	    if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
		number = evPtr->xkey.state;

	    } else if (flags & CROSSING) {
		number = evPtr->xcrossing.state;

	    } else if (flags & PROP) {
		string = TkFindStateString(propNotify, evPtr->xproperty.state);

	    } else if (flags & VISIBILITY) {
		string = TkFindStateString(visNotify, evPtr->xvisibility.state);

	    }
	    break;
	case 't':
	    if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
		number = (int) evPtr->xkey.time;
	    } else if (flags & CROSSING) {
		number = (int) evPtr->xcrossing.time;
	    } else if (flags & PROP) {
		number = (int) evPtr->xproperty.time;


	    }
	    break;
	case 'v':
	    number = evPtr->xconfigurerequest.value_mask;
	    break;
	case 'w':
	    if (flags & EXPOSE) {
		number = evPtr->xexpose.width;
	    } else if (flags & CONFIG) {
		number = evPtr->xconfigure.width;
	    } else if (flags & CREATE) {
		number = evPtr->xcreatewindow.width;
	    } else if (flags & CONFIGREQ) {
		number = evPtr->xconfigurerequest.width;
	    } else if (flags & RESIZEREQ) {
		number = evPtr->xresizerequest.width;


	    }
	    break;
	case 'x':
	    if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
		number = evPtr->xkey.x;
	    } else if (flags & CROSSING) {
		number = evPtr->xcrossing.x;
	    } else if (flags & EXPOSE) {
		number = evPtr->xexpose.x;
	    } else if (flags & (CREATE|CONFIG|GRAVITY)) {
		number = evPtr->xcreatewindow.x;
	    } else if (flags & REPARENT) {
		number = evPtr->xreparent.x;
	    } else if (flags & CREATE) {
		number = evPtr->xcreatewindow.x;
	    } else if (flags & CONFIGREQ) {
		number = evPtr->xconfigurerequest.x;


	    }
	    break;
	case 'y':
	    if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
		number = evPtr->xkey.y;
	    } else if (flags & EXPOSE) {
		number = evPtr->xexpose.y;
	    } else if (flags & (CREATE|CONFIG|GRAVITY)) {
		number = evPtr->xcreatewindow.y;
	    } else if (flags & REPARENT) {
		number = evPtr->xreparent.y;
	    } else if (flags & CROSSING) {
		number = evPtr->xcrossing.y;
	    } else if (flags & CREATE) {
		number = evPtr->xcreatewindow.y;
	    } else if (flags & CONFIGREQ) {
		number = evPtr->xconfigurerequest.y;


	    }
	    break;
	case 'A':
	    if ((flags & KEY) && evPtr->type != MouseWheelEvent) {
		Tcl_DStringFree(&buf);
		string = TkpGetString(winPtr, evPtr, &buf);
	    }
	    break;
	case 'B':
	    if (flags & CREATE) {
		number = evPtr->xcreatewindow.border_width;
	    } else if (flags & CONFIGREQ) {
		number = evPtr->xconfigurerequest.border_width;
	    } else if (flags & CONFIG) {
		number = evPtr->xconfigure.border_width;


	    }
	    break;
	case 'D':
	    /*
	     * This is used only by the MouseWheel event.
	     */

	    if ((flags & KEY) && evPtr->type == MouseWheelEvent) {
		number = evPtr->xkey.keycode;

	    }
	    break;
	case 'E':
	    number = (int) evPtr->xany.send_event;
	    break;
	case 'K':
	    if ((flags & KEY) && evPtr->type != MouseWheelEvent) {
		const char *name = TkKeysymToString(eventPtr->detail.info);

		if (name) {
		    string = name;
		}
	    }
	    break;
	case 'M':
	    number = scriptCount;
	    break;
	case 'N':
	    if ((flags & KEY) && evPtr->type != MouseWheelEvent) {
		number = (int) eventPtr->detail.info;

	    }
	    break;
	case 'P':
	    if (flags & PROP) {
		string = Tk_GetAtomName((Tk_Window) winPtr, evPtr->xproperty.atom);

	    }
	    break;
	case 'R':
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		TkpPrintWindowId(numStorage, evPtr->xkey.root);
		string = numStorage;
	    }
	    break;
	case 'S':
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		TkpPrintWindowId(numStorage, evPtr->xkey.subwindow);
		string = numStorage;
	    }
	    break;
	case 'T':
	    number = evPtr->type;
	    break;
	case 'W': {
	    Tk_Window tkwin = Tk_IdToWindow(evPtr->xany.display, evPtr->xany.window);



	    if (tkwin) {
		string = Tk_PathName(tkwin);


	    }
	    break;
	}
	case 'X':
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {

		number = evPtr->xkey.x_root;



	    }
	    break;
	case 'Y':
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {

		number = evPtr->xkey.y_root;



	    }
	    break;
	default:
	    numStorage[0] = before[1];
	    numStorage[1] = '\0';
	    string = numStorage;
	    break;
	}

	if (number != NO_NUMBER) {
	    snprintf(numStorage, sizeof(numStorage), "%d", (int) number);
	    string = numStorage;
	}
	{   /* local scope */
	    int cvtFlags;
	    unsigned spaceNeeded = Tcl_ScanElement(string, &cvtFlags);
	    unsigned length = Tcl_DStringLength(dsPtr);

	    Tcl_DStringSetLength(dsPtr, length + spaceNeeded);
	    spaceNeeded = Tcl_ConvertElement(
		    string, Tcl_DStringValue(dsPtr) + length, cvtFlags | TCL_DONT_USE_BRACES);

	    Tcl_DStringSetLength(dsPtr, length + spaceNeeded);
	    before += 2;
	}
    }

    Tcl_DStringFree(&buf);
}

/*
 *----------------------------------------------------------------------
 *
 * ChangeScreen --
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static void
ChangeScreen(
    Tcl_Interp *interp,		/* Interpreter in which to invoke command. */
    char *dispName,		/* Name of new display. */
    int screenIndex)		/* Index of new screen. */
{
    Tcl_Obj *cmdObj = Tcl_ObjPrintf("::tk::ScreenChanged %s.%d",
	    dispName, screenIndex);
    int code;

    Tcl_IncrRefCount(cmdObj);
    code = Tcl_EvalObjEx(interp, cmdObj, TCL_EVAL_GLOBAL);
    if (code != TCL_OK) {
	Tcl_AddErrorInfo(interp,
		"\n    (changing screen in event binding)");
	Tcl_BackgroundException(interp, code);
    }
    Tcl_DecrRefCount(cmdObj);
}

/*
 *----------------------------------------------------------------------






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3259
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static void
ChangeScreen(
    Tcl_Interp *interp,		/* Interpreter in which to invoke command. */
    char *dispName,		/* Name of new display. */
    int screenIndex)		/* Index of new screen. */
{
    Tcl_Obj *cmdObj = Tcl_ObjPrintf("::tk::ScreenChanged %s.%d", dispName, screenIndex);

    int code;

    Tcl_IncrRefCount(cmdObj);
    code = Tcl_EvalObjEx(interp, cmdObj, TCL_EVAL_GLOBAL);
    if (code != TCL_OK) {
	Tcl_AddErrorInfo(interp, "\n    (changing screen in event binding)");

	Tcl_BackgroundException(interp, code);
    }
    Tcl_DecrRefCount(cmdObj);
}

/*
 *----------------------------------------------------------------------
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    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    int index, i;
    char *name;
    const char *event;
    Tk_Window tkwin = clientData;
    TkBindInfo bindInfo = ((TkWindow *) tkwin)->mainPtr->bindInfo;
    VirtualEventTable *vetPtr = &bindInfo->virtualEventTable;

    static const char *const optionStrings[] = {
	"add",		"delete",	"generate",	"info",
	NULL
    };
    enum options {
	EVENT_ADD,	EVENT_DELETE,	EVENT_GENERATE,	EVENT_INFO
    };



    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "option ?arg?");
	return TCL_ERROR;
    }
    if (Tcl_GetIndexFromObjStruct(interp, objv[1], optionStrings,
	    sizeof(char *), "option", 0, &index) != TCL_OK) {










	return TCL_ERROR;
    }





    switch ((enum options) index) {
    case EVENT_ADD:
	if (objc < 4) {
	    Tcl_WrongNumArgs(interp, 2, objv,
		    "virtual sequence ?sequence ...?");
	    return TCL_ERROR;
	}
	name = Tcl_GetString(objv[2]);
	for (i = 3; i < objc; i++) {
	    event = Tcl_GetString(objv[i]);
	    if (CreateVirtualEvent(interp, vetPtr, name, event) != TCL_OK) {
		return TCL_ERROR;
	    }
	}
	break;
    case EVENT_DELETE:
	if (objc < 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "virtual ?sequence ...?");
	    return TCL_ERROR;
	}
	name = Tcl_GetString(objv[2]);
	if (objc == 3) {
	    return DeleteVirtualEvent(interp, vetPtr, name, NULL);
	}
	for (i = 3; i < objc; i++) {
	    event = Tcl_GetString(objv[i]);
	    if (DeleteVirtualEvent(interp, vetPtr, name, event) != TCL_OK) {
		return TCL_ERROR;
	    }
	}
	break;
    case EVENT_GENERATE:
	if (objc < 4) {
	    Tcl_WrongNumArgs(interp, 2, objv,
		    "window event ?-option value ...?");
	    return TCL_ERROR;
	}
	return HandleEventGenerate(interp, tkwin, objc - 2, objv + 2);
    case EVENT_INFO:
	if (objc == 2) {
	    GetAllVirtualEvents(interp, vetPtr);
	    return TCL_OK;

	} else if (objc == 3) {
	    return GetVirtualEvent(interp, vetPtr, objv[2]);
	} else {

	    Tcl_WrongNumArgs(interp, 2, objv, "?virtual?");
	    return TCL_ERROR;
	}
    }
    return TCL_OK;
}

/*
 *---------------------------------------------------------------------------
 *






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    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    int index, i;
    char *name;
    const char *event;
    Tk_Window tkwin;
    TkBindInfo bindInfo;
    VirtualEventTable *vetPtr;

    static const char *const optionStrings[] = { "add", "delete", "generate", "info", NULL };



    enum options { EVENT_ADD, EVENT_DELETE, EVENT_GENERATE, EVENT_INFO };



    assert(clientData);

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "option ?arg?");
	return TCL_ERROR;
    }
    if (Tcl_GetIndexFromObjStruct(
	    interp, objv[1], optionStrings, sizeof(char *), "option", 0, &index) != TCL_OK) {
#ifdef SUPPORT_DEBUGGING
    	if (strcmp(Tcl_GetString(objv[1]), "debug") == 0) {
	    if (objc < 3) {
		Tcl_WrongNumArgs(interp, 1, objv, "debug number");
		return TCL_ERROR;
	    }
	    Tcl_GetIntFromObj(interp, objv[2], &BindCount);
	    return TCL_OK;
	}
#endif
	return TCL_ERROR;
    }

    tkwin = (Tk_Window) clientData;
    bindInfo = ((TkWindow *) tkwin)->mainPtr->bindInfo;
    vetPtr = &bindInfo->virtualEventTable;

    switch ((enum options) index) {
    case EVENT_ADD:
	if (objc < 4) {
	    Tcl_WrongNumArgs(interp, 2, objv, "virtual sequence ?sequence ...?");

	    return TCL_ERROR;
	}
	name = Tcl_GetString(objv[2]);
	for (i = 3; i < objc; ++i) {
	    event = Tcl_GetString(objv[i]);
	    if (!CreateVirtualEvent(interp, vetPtr, name, event)) {
		return TCL_ERROR;
	    }
	}
	break;
    case EVENT_DELETE:
	if (objc < 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "virtual ?sequence ...?");
	    return TCL_ERROR;
	}
	name = Tcl_GetString(objv[2]);
	if (objc == 3) {
	    return DeleteVirtualEvent(interp, vetPtr, name, NULL);
	}
	for (i = 3; i < objc; ++i) {
	    event = Tcl_GetString(objv[i]);
	    if (DeleteVirtualEvent(interp, vetPtr, name, event) != TCL_OK) {
		return TCL_ERROR;
	    }
	}
	break;
    case EVENT_GENERATE:
	if (objc < 4) {
	    Tcl_WrongNumArgs(interp, 2, objv, "window event ?-option value ...?");

	    return TCL_ERROR;
	}
	return HandleEventGenerate(interp, tkwin, objc - 2, objv + 2);
    case EVENT_INFO:
	if (objc == 2) {
	    GetAllVirtualEvents(interp, vetPtr);
	    return TCL_OK;
	}
	if (objc == 3) {
	    return GetVirtualEvent(interp, vetPtr, objv[2]);

	}
	Tcl_WrongNumArgs(interp, 2, objv, "?virtual?");
	return TCL_ERROR;

    }
    return TCL_OK;
}

/*
 *---------------------------------------------------------------------------
 *
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2472
 *	*vetPtr is now initialized.
 *
 *---------------------------------------------------------------------------
 */

static void
InitVirtualEventTable(
    VirtualEventTable *vetPtr)	/* Pointer to virtual event table. Memory is
				 * supplied by the caller. */
{


    Tcl_InitHashTable(&vetPtr->patternTable,
	    sizeof(PatternTableKey) / sizeof(int));
    Tcl_InitHashTable(&vetPtr->nameTable, TCL_ONE_WORD_KEYS);

}

/*
 *---------------------------------------------------------------------------
 *
 * DeleteVirtualEventTable --
 *






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3393
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3406
 *	*vetPtr is now initialized.
 *
 *---------------------------------------------------------------------------
 */

static void
InitVirtualEventTable(
    VirtualEventTable *vetPtr)	/* Pointer to virtual event table. Memory is supplied by the caller. */

{
    assert(vetPtr);
    memset(vetPtr, 0, sizeof(*vetPtr));
    Tcl_InitHashTable(&vetPtr->lookupTables.patternTable, sizeof(PatternTableKey)/sizeof(int));
    Tcl_InitHashTable(&vetPtr->lookupTables.listTable, sizeof(PatternTableKey)/sizeof(int));
    Tcl_InitHashTable(&vetPtr->nameTable, TCL_ONE_WORD_KEYS);
    PSList_Init(&vetPtr->lookupTables.entryPool);
}

/*
 *---------------------------------------------------------------------------
 *
 * DeleteVirtualEventTable --
 *
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2509
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static void
DeleteVirtualEventTable(
    VirtualEventTable *vetPtr)	/* The virtual event table to delete. */
{
    Tcl_HashEntry *hPtr;
    Tcl_HashSearch search;
    PatSeq *psPtr, *nextPtr;


    hPtr = Tcl_FirstHashEntry(&vetPtr->patternTable, &search);
    for ( ; hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) {



	psPtr = Tcl_GetHashValue(hPtr);
	for ( ; psPtr != NULL; psPtr = nextPtr) {
	    nextPtr = psPtr->nextSeqPtr;
	    ckfree(psPtr->voPtr);
	    ckfree(psPtr);
	}
    }
    Tcl_DeleteHashTable(&vetPtr->patternTable);

    hPtr = Tcl_FirstHashEntry(&vetPtr->nameTable, &search);
    for ( ; hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) {
	ckfree(Tcl_GetHashValue(hPtr));
    }
    Tcl_DeleteHashTable(&vetPtr->nameTable);





}

/*
 *----------------------------------------------------------------------
 *
 * CreateVirtualEvent --
 *






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static void
DeleteVirtualEventTable(
    VirtualEventTable *vetPtr)	/* The virtual event table to delete. */
{
    Tcl_HashEntry *hPtr;
    Tcl_HashSearch search;

    assert(vetPtr);

    hPtr = Tcl_FirstHashEntry(&vetPtr->lookupTables.patternTable, &search);
    for ( ; hPtr; hPtr = Tcl_NextHashEntry(&search)) {
	PatSeq *nextPtr;
	PatSeq *psPtr;

	for (psPtr = Tcl_GetHashValue(hPtr); psPtr; psPtr = nextPtr) {
	    assert(TEST_PSENTRY(psPtr));
	    nextPtr = psPtr->nextSeqPtr;
	    DEBUG(psPtr->owned = 0);
	    FreePatSeq(psPtr);
	}
    }
    Tcl_DeleteHashTable(&vetPtr->lookupTables.patternTable);

    hPtr = Tcl_FirstHashEntry(&vetPtr->nameTable, &search);
    for ( ; hPtr; hPtr = Tcl_NextHashEntry(&search)) {
	ckfree(Tcl_GetHashValue(hPtr));
    }
    Tcl_DeleteHashTable(&vetPtr->nameTable);
    Tcl_DeleteHashTable(&vetPtr->lookupTables.listTable);

    ClearLookupTable(&vetPtr->lookupTables, NULL);
    DEBUG(countEntryItems -= PSList_Size(&vetPtr->lookupTables.entryPool));
    PSList_Traverse(&vetPtr->lookupTables.entryPool, FreePatSeqEntry);
}

/*
 *----------------------------------------------------------------------
 *
 * CreateVirtualEvent --
 *
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2547
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2561
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2619
 */

static int
CreateVirtualEvent(
    Tcl_Interp *interp,		/* Used for error reporting. */
    VirtualEventTable *vetPtr,	/* Table in which to augment virtual event. */
    char *virtString,		/* Name of new virtual event. */
    const char *eventString)		/* String describing physical event that
				 * triggers virtual event. */
{
    PatSeq *psPtr;
    int dummy;
    Tcl_HashEntry *vhPtr;
    unsigned long eventMask;
    PhysicalsOwned *poPtr;
    VirtualOwners *voPtr;
    Tk_Uid virtUid;





    virtUid = GetVirtualEventUid(interp, virtString);
    if (virtUid == NULL) {
	return TCL_ERROR;
    }

    /*
     * Find/create physical event
     */

    psPtr = FindSequence(interp, &vetPtr->patternTable, NULL, eventString,
	    1, 0, &eventMask);
    if (psPtr == NULL) {
	return TCL_ERROR;
    }


    /*
     * Find/create virtual event.
     */

    vhPtr = Tcl_CreateHashEntry(&vetPtr->nameTable, virtUid, &dummy);

    /*
     * Make virtual event own the physical event.
     */

    poPtr = Tcl_GetHashValue(vhPtr);
    if (poPtr == NULL) {
	poPtr = ckalloc(sizeof(PhysicalsOwned));
	poPtr->numOwned = 0;
    } else {
	/*
	 * See if this virtual event is already defined for this physical
	 * event and just return if it is.
	 */

	int i;

	for (i = 0; i < poPtr->numOwned; i++) {
	    if (poPtr->patSeqs[i] == psPtr) {
		return TCL_OK;
	    }
	}
	poPtr = ckrealloc(poPtr, sizeof(PhysicalsOwned)
		+ poPtr->numOwned * sizeof(PatSeq *));
    }
    Tcl_SetHashValue(vhPtr, poPtr);
    poPtr->patSeqs[poPtr->numOwned] = psPtr;
    poPtr->numOwned++;

    /*
     * Make physical event so it can trigger the virtual event.
     */

    voPtr = psPtr->voPtr;
    if (voPtr == NULL) {
	voPtr = ckalloc(sizeof(VirtualOwners));
	voPtr->numOwners = 0;
    } else {
	voPtr = ckrealloc(voPtr, sizeof(VirtualOwners)
		+ voPtr->numOwners * sizeof(Tcl_HashEntry *));
    }
    psPtr->voPtr = voPtr;
    voPtr->owners[voPtr->numOwners] = vhPtr;
    voPtr->numOwners++;

    return TCL_OK;
}

/*
 *--------------------------------------------------------------
 *
 * DeleteVirtualEvent --
 *






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3515

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3518

3519
3520

3521

3522







3523



3524
3525
3526
3527
3528
3529
3530
3531
3532
 */

static int
CreateVirtualEvent(
    Tcl_Interp *interp,		/* Used for error reporting. */
    VirtualEventTable *vetPtr,	/* Table in which to augment virtual event. */
    char *virtString,		/* Name of new virtual event. */
    const char *eventString)	/* String describing physical event that triggers virtual event. */

{
    PatSeq *psPtr;
    int dummy;
    Tcl_HashEntry *vhPtr;

    PhysOwned *owned;

    Tk_Uid virtUid;

    assert(vetPtr);
    assert(virtString);
    assert(eventString);

    if (!(virtUid = GetVirtualEventUid(interp, virtString))) {

	return 0;
    }

    /*
     * Find/create physical event
     */

    if (!(psPtr = FindSequence(interp, &vetPtr->lookupTables, NULL, eventString, 1, 0, NULL))) {


	return 0;
    }
    assert(TEST_PSENTRY(psPtr));

    /*
     * Find/create virtual event.
     */

    vhPtr = Tcl_CreateHashEntry(&vetPtr->nameTable, virtUid, &dummy);

    /*
     * Make virtual event own the physical event.
     */

    owned = Tcl_GetHashValue(vhPtr);










    if (!PhysOwned_Contains(owned, psPtr)) {

	PhysOwned_Append(&owned, psPtr);






	Tcl_SetHashValue(vhPtr, owned);

	DEBUG(psPtr->owned = 1);
	InsertPatSeq(&vetPtr->lookupTables, psPtr);

	/* Make physical event so it can trigger the virtual event. */

	VirtOwners_Append(&psPtr->ptr.owners, vhPtr);







    }




    return 1;
}

/*
 *--------------------------------------------------------------
 *
 * DeleteVirtualEvent --
 *
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2742


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2751
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2755
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2766
2767
2768
2769
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2772
2773
2774
2775
2776
2777
 *--------------------------------------------------------------
 */

static int
DeleteVirtualEvent(
    Tcl_Interp *interp,		/* Used for error reporting. */
    VirtualEventTable *vetPtr,	/* Table in which to delete event. */
    char *virtString,		/* String describing event sequence that
				 * triggers binding. */
    const char *eventString)		/* The event sequence that should be deleted,
				 * or NULL to delete all event sequences for
				 * the entire virtual event. */
{
    int iPhys;
    Tk_Uid virtUid;
    Tcl_HashEntry *vhPtr;
    PhysicalsOwned *poPtr;
    PatSeq *eventPSPtr;





    virtUid = GetVirtualEventUid(interp, virtString);
    if (virtUid == NULL) {
	return TCL_ERROR;
    }

    vhPtr = Tcl_FindHashEntry(&vetPtr->nameTable, virtUid);
    if (vhPtr == NULL) {
	return TCL_OK;
    }
    poPtr = Tcl_GetHashValue(vhPtr);

    eventPSPtr = NULL;
    if (eventString != NULL) {
	unsigned long eventMask;


	/*
	 * Delete only the specific physical event associated with the virtual
	 * event. If the physical event doesn't already exist, or the virtual
	 * event doesn't own that physical event, return w/o doing anything.
	 */

	eventPSPtr = FindSequence(interp, &vetPtr->patternTable, NULL,
		eventString, 0, 0, &eventMask);
	if (eventPSPtr == NULL) {
	    const char *string = Tcl_GetString(Tcl_GetObjResult(interp));

	    return (string[0] != '\0') ? TCL_ERROR : TCL_OK;
	}
    }

    for (iPhys = poPtr->numOwned; --iPhys >= 0; ) {
	PatSeq *psPtr = poPtr->patSeqs[iPhys];

	if ((eventPSPtr == NULL) || (psPtr == eventPSPtr)) {
	    int iVirt;
	    VirtualOwners *voPtr;

	    /*
	     * Remove association between this physical event and the given
	     * virtual event that it triggers.
	     */

	    voPtr = psPtr->voPtr;
	    for (iVirt = 0; iVirt < voPtr->numOwners; iVirt++) {
		if (voPtr->owners[iVirt] == vhPtr) {
		    break;
		}
	    }
	    if (iVirt == voPtr->numOwners) {
		Tcl_Panic("DeleteVirtualEvent: couldn't find owner");
	    }
	    voPtr->numOwners--;
	    if (voPtr->numOwners == 0) {
		/*
		 * Removed last reference to this physical event, so remove it
		 * from physical->virtual map.
		 */

		PatSeq *prevPtr = Tcl_GetHashValue(psPtr->hPtr);

		if (prevPtr == psPtr) {
		    if (psPtr->nextSeqPtr == NULL) {
			Tcl_DeleteHashEntry(psPtr->hPtr);
		    } else {
			Tcl_SetHashValue(psPtr->hPtr,
				psPtr->nextSeqPtr);
		    }
		} else {
		    for ( ; ; prevPtr = prevPtr->nextSeqPtr) {
			if (prevPtr == NULL) {
			    Tcl_Panic("DeleteVirtualEvent couldn't find on hash chain");
			}
			if (prevPtr->nextSeqPtr == psPtr) {
			    prevPtr->nextSeqPtr = psPtr->nextSeqPtr;
			    break;
			}
		    }
		}
		ckfree(psPtr->voPtr);
		ckfree(psPtr);
	    } else {
		/*
		 * This physical event still triggers some other virtual
		 * event(s). Consolidate the list of virtual owners for this
		 * physical event so it no longer triggers the given virtual
		 * event.
		 */







		voPtr->owners[iVirt] = voPtr->owners[voPtr->numOwners];


	    }

	    /*
	     * Now delete the virtual event's reference to the physical event.
	     */

	    poPtr->numOwned--;
	    if (eventPSPtr != NULL && poPtr->numOwned != 0) {

		/*
		 * Just deleting this one physical event. Consolidate list of
		 * owned physical events and return.
		 */



		poPtr->patSeqs[iPhys] = poPtr->patSeqs[poPtr->numOwned];
		return TCL_OK;
	    }
	}
    }

    if (poPtr->numOwned == 0) {
	/*
	 * All the physical events for this virtual event were deleted, either
	 * because there was only one associated physical event or because the
	 * caller was deleting the entire virtual event. Now the virtual event
	 * itself should be deleted.
	 */

	ckfree(poPtr);
	Tcl_DeleteHashEntry(vhPtr);
    }
    return TCL_OK;
}

/*
 *---------------------------------------------------------------------------






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3548
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3603


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3611





















3612
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3644
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3650
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3652
3653
3654
3655
3656

3657
3658
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3660
3661
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3663
 *--------------------------------------------------------------
 */

static int
DeleteVirtualEvent(
    Tcl_Interp *interp,		/* Used for error reporting. */
    VirtualEventTable *vetPtr,	/* Table in which to delete event. */
    char *virtString,		/* String describing event sequence that triggers binding. */

    const char *eventString)	/* The event sequence that should be deleted, or NULL to delete

    				 * all event sequences for the entire virtual event. */
{
    int iPhys;
    Tk_Uid virtUid;
    Tcl_HashEntry *vhPtr;
    PhysOwned *owned;
    const PatSeq *eventPSPtr;
    PatSeq *lastElemPtr;

    assert(vetPtr);
    assert(virtString);

    if (!(virtUid = GetVirtualEventUid(interp, virtString))) {

	return TCL_ERROR;
    }

    if (!(vhPtr = Tcl_FindHashEntry(&vetPtr->nameTable, virtUid))) {

	return TCL_OK;
    }
    owned = Tcl_GetHashValue(vhPtr);

    eventPSPtr = NULL;
    if (eventString) {

	LookupTables *lookupTables = &vetPtr->lookupTables;

	/*
	 * Delete only the specific physical event associated with the virtual
	 * event. If the physical event doesn't already exist, or the virtual
	 * event doesn't own that physical event, return w/o doing anything.
	 */

	eventPSPtr = FindSequence(interp, lookupTables, NULL, eventString, 0, 0, NULL);

	if (!eventPSPtr) {
	    const char *string = Tcl_GetString(Tcl_GetObjResult(interp));

	    return string[0] ? TCL_ERROR : TCL_OK;
	}
    }

    for (iPhys = PhysOwned_Size(owned); --iPhys >= 0; ) {
	PatSeq *psPtr = PhysOwned_Get(owned, iPhys);

	assert(TEST_PSENTRY(psPtr));







	if (!eventPSPtr || psPtr == eventPSPtr) {
	    VirtOwners *owners = psPtr->ptr.owners;
	    int iVirt = VirtOwners_Find(owners, vhPtr);





	    assert(iVirt != -1); /* otherwise we couldn't find owner, and this should not happen */



	    /*
	     * Remove association between this physical event and the given
	     * virtual event that it triggers.
	     */


	    if (VirtOwners_Size(owners) > 1) {





















		/*
		 * This physical event still triggers some other virtual
		 * event(s). Consolidate the list of virtual owners for this
		 * physical event so it no longer triggers the given virtual
		 * event.
		 */
		VirtOwners_Set(owners, iVirt, VirtOwners_Back(owners));
		VirtOwners_PopBack(owners);
	    } else {
		/*
		 * Removed last reference to this physical event, so remove it
		 * from lookup table.
		 */
		DEBUG(psPtr->owned = 0);
		RemovePatSeqFromLookup(&vetPtr->lookupTables, psPtr);
		DeletePatSeq(psPtr);
	    }

	    /*
	     * Now delete the virtual event's reference to the physical event.
	     */

	    lastElemPtr = PhysOwned_Back(owned);

	    if (PhysOwned_PopBack(owned) > 0 && eventPSPtr) {
		/*
		 * Just deleting this one physical event. Consolidate list of
		 * owned physical events and return.
		 */
		if ((size_t) iPhys < PhysOwned_Size(owned)) {
		    PhysOwned_Set(owned, iPhys, lastElemPtr);
		}

		return TCL_OK;
	    }
	}
    }

    if (PhysOwned_IsEmpty(owned)) {
	/*
	 * All the physical events for this virtual event were deleted, either
	 * because there was only one associated physical event or because the
	 * caller was deleting the entire virtual event. Now the virtual event
	 * itself should be deleted.
	 */
	PhysOwned_Free(&owned);

	Tcl_DeleteHashEntry(vhPtr);
    }
    return TCL_OK;
}

/*
 *---------------------------------------------------------------------------
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2802
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2806
2807
2808
2809



2810
2811
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2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
static int
GetVirtualEvent(
    Tcl_Interp *interp,		/* Interpreter for reporting. */
    VirtualEventTable *vetPtr,	/* Table in which to look for event. */
    Tcl_Obj *virtName)		/* String describing virtual event. */
{
    Tcl_HashEntry *vhPtr;
    int iPhys;
    PhysicalsOwned *poPtr;
    Tk_Uid virtUid;
    Tcl_Obj *resultObj;




    virtUid = GetVirtualEventUid(interp, Tcl_GetString(virtName));
    if (virtUid == NULL) {
	return TCL_ERROR;
    }

    vhPtr = Tcl_FindHashEntry(&vetPtr->nameTable, virtUid);
    if (vhPtr == NULL) {
	return TCL_OK;
    }

    resultObj = Tcl_NewObj();
    poPtr = Tcl_GetHashValue(vhPtr);
    for (iPhys = 0; iPhys < poPtr->numOwned; iPhys++) {
	Tcl_ListObjAppendElement(NULL, resultObj,
		GetPatternObj(poPtr->patSeqs[iPhys]));
    }
    Tcl_SetObjResult(interp, resultObj);

    return TCL_OK;
}

/*






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3684
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3687
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3700
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3703

3704
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3706
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3710

3711
3712
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3716
3717
static int
GetVirtualEvent(
    Tcl_Interp *interp,		/* Interpreter for reporting. */
    VirtualEventTable *vetPtr,	/* Table in which to look for event. */
    Tcl_Obj *virtName)		/* String describing virtual event. */
{
    Tcl_HashEntry *vhPtr;
    unsigned iPhys;
    const PhysOwned *owned;
    Tk_Uid virtUid;
    Tcl_Obj *resultObj;

    assert(vetPtr);
    assert(virtName);

    if (!(virtUid = GetVirtualEventUid(interp, Tcl_GetString(virtName)))) {

	return TCL_ERROR;
    }

    if (!(vhPtr = Tcl_FindHashEntry(&vetPtr->nameTable, virtUid))) {

	return TCL_OK;
    }

    resultObj = Tcl_NewObj();
    owned = Tcl_GetHashValue(vhPtr);
    for (iPhys = 0; iPhys < PhysOwned_Size(owned); ++iPhys) {
	Tcl_ListObjAppendElement(NULL, resultObj, GetPatternObj(PhysOwned_Get(owned, iPhys)));

    }
    Tcl_SetObjResult(interp, resultObj);

    return TCL_OK;
}

/*
2850
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2854
2855
2856


2857
2858
2859
2860

2861
2862
2863
2864
2865
2866
2867
2868
2869
GetAllVirtualEvents(
    Tcl_Interp *interp,		/* Interpreter returning result. */
    VirtualEventTable *vetPtr)	/* Table containing events. */
{
    Tcl_HashEntry *hPtr;
    Tcl_HashSearch search;
    Tcl_Obj *resultObj;



    resultObj = Tcl_NewObj();
    hPtr = Tcl_FirstHashEntry(&vetPtr->nameTable, &search);
    for ( ; hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) {

	Tcl_ListObjAppendElement(NULL, resultObj, Tcl_ObjPrintf(
		"<<%s>>", (char *) Tcl_GetHashKey(hPtr->tablePtr, hPtr)));
    }
    Tcl_SetObjResult(interp, resultObj);
}

/*
 *---------------------------------------------------------------------------
 *






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3736
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3745
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3748
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3750

3751
3752
3753
3754
3755
3756
3757
GetAllVirtualEvents(
    Tcl_Interp *interp,		/* Interpreter returning result. */
    VirtualEventTable *vetPtr)	/* Table containing events. */
{
    Tcl_HashEntry *hPtr;
    Tcl_HashSearch search;
    Tcl_Obj *resultObj;

    assert(vetPtr);

    resultObj = Tcl_NewObj();
    hPtr = Tcl_FirstHashEntry(&vetPtr->nameTable, &search);
    for ( ; hPtr; hPtr = Tcl_NextHashEntry(&search)) {
	Tcl_Obj* msg = Tcl_ObjPrintf("<<%s>>", (char *) Tcl_GetHashKey(hPtr->tablePtr, hPtr));
	Tcl_ListObjAppendElement(NULL, resultObj, msg);

    }
    Tcl_SetObjResult(interp, resultObj);
}

/*
 *---------------------------------------------------------------------------
 *
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static int
HandleEventGenerate(
    Tcl_Interp *interp,		/* Interp for errors return and name lookup. */
    Tk_Window mainWin,		/* Main window associated with interp. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    union {XEvent general; XVirtualEvent virtual;} event;

    const char *p;
    const char *name, *windowName;
    int count, flags, synch, i, number, warp;
    Tcl_QueuePosition pos;
    TkPattern pat;
    Tk_Window tkwin, tkwin2;

    TkWindow *mainPtr;
    unsigned long eventMask;
    Tcl_Obj *userDataObj;







    static const char *const fieldStrings[] = {
	"-when",	"-above",	"-borderwidth",	"-button",
	"-count",	"-data",	"-delta",	"-detail",
	"-focus",	"-height",
	"-keycode",	"-keysym",	"-mode",	"-override",
	"-place",	"-root",	"-rootx",	"-rooty",
	"-sendevent",	"-serial",	"-state",	"-subwindow",
	"-time",	"-warp",	"-width",	"-window",
	"-x",		"-y",	NULL
    };
    enum field {
	EVENT_WHEN,	EVENT_ABOVE,	EVENT_BORDER,	EVENT_BUTTON,
	EVENT_COUNT,	EVENT_DATA,	EVENT_DELTA,	EVENT_DETAIL,
	EVENT_FOCUS,	EVENT_HEIGHT,
	EVENT_KEYCODE,	EVENT_KEYSYM,	EVENT_MODE,	EVENT_OVERRIDE,
	EVENT_PLACE,	EVENT_ROOT,	EVENT_ROOTX,	EVENT_ROOTY,
	EVENT_SEND,	EVENT_SERIAL,	EVENT_STATE,	EVENT_SUBWINDOW,
	EVENT_TIME,	EVENT_WARP,	EVENT_WIDTH,	EVENT_WINDOW,
	EVENT_X,	EVENT_Y
    };



    windowName = Tcl_GetString(objv[0]);
    if (!windowName[0]) {
	tkwin = mainWin;
    } else if (NameToWindow(interp, mainWin, objv[0], &tkwin) != TCL_OK) {
	return TCL_ERROR;
    }

    mainPtr = (TkWindow *) mainWin;
    if ((tkwin == NULL)
	    || (mainPtr->mainPtr != ((TkWindow *) tkwin)->mainPtr)) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"window id \"%s\" doesn't exist in this application",
		Tcl_GetString(objv[0])));
	Tcl_SetErrorCode(interp, "TK", "LOOKUP", "WINDOW",
		Tcl_GetString(objv[0]), NULL);
	return TCL_ERROR;
    }

    name = Tcl_GetString(objv[1]);

    p = name;
    eventMask = 0;
    userDataObj = NULL;
    count = ParseEventDescription(interp, &p, &pat, &eventMask);
    if (count == 0) {
	return TCL_ERROR;
    }
    if (count != 1) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"Double or Triple modifier not allowed", -1));
	Tcl_SetErrorCode(interp, "TK", "EVENT", "BAD_MODIFIER", NULL);
	return TCL_ERROR;
    }
    if (*p != '\0') {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"only one event specification allowed", -1));
	Tcl_SetErrorCode(interp, "TK", "EVENT", "MULTIPLE", NULL);
	return TCL_ERROR;
    }

    memset(&event, 0, sizeof(event));
    event.general.xany.type = pat.eventType;
    event.general.xany.serial = NextRequest(Tk_Display(tkwin));
    event.general.xany.send_event = False;
    if (windowName[0]) {
	event.general.xany.window = Tk_WindowId(tkwin);
    } else {
	event.general.xany.window =
		RootWindow(Tk_Display(tkwin), Tk_ScreenNumber(tkwin));
    }
    event.general.xany.display = Tk_Display(tkwin);

    flags = flagArray[event.general.xany.type];
    if (flags & DESTROY) {
	/*
	 * Event DestroyNotify should be generated by destroying the window.
	 */

	Tk_DestroyWindow(tkwin);
	return TCL_OK;
    }
    if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
	event.general.xkey.state = pat.needMods;
	if ((flags & KEY) && (event.general.xany.type != MouseWheelEvent)) {
	    TkpSetKeycodeAndState(tkwin, pat.detail.keySym, &event.general);
	} else if (flags & BUTTON) {
	    event.general.xbutton.button = pat.detail.button;
	} else if (flags & VIRTUAL) {
	    event.virtual.name = pat.detail.name;
	}
    }
    if (flags & (CREATE|UNMAP|MAP|REPARENT|CONFIG|GRAVITY|CIRC)) {
	event.general.xcreatewindow.window = event.general.xany.window;
    }

    if (flags & KEY_BUTTON_MOTION_CROSSING) {
	event.general.xkey.x_root = -1;
	event.general.xkey.y_root = -1;
    }

    if (event.general.xany.type == FocusIn
	    || event.general.xany.type == FocusOut) {
	event.general.xany.send_event = GENERATED_FOCUS_EVENT_MAGIC;
    }

    /*
     * Process the remaining arguments to fill in additional fields of the
     * event.
     */

    synch = 1;
    warp = 0;
    pos = TCL_QUEUE_TAIL;

    for (i = 2; i < objc; i += 2) {
	Tcl_Obj *optionPtr, *valuePtr;

	int index;

	optionPtr = objv[i];
	valuePtr = objv[i + 1];

	if (Tcl_GetIndexFromObjStruct(interp, optionPtr, fieldStrings,
		sizeof(char *), "option", TCL_EXACT, &index) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (objc & 1) {
	    /*
	     * This test occurs after Tcl_GetIndexFromObj() so that "event
	     * generate <Button> -xyz" will return the error message that
	     * "-xyz" is a bad option, rather than that the value for "-xyz"
	     * is missing.
	     */

	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "value for \"%s\" missing", Tcl_GetString(optionPtr)));
	    Tcl_SetErrorCode(interp, "TK", "EVENT", "MISSING_VALUE", NULL);
	    return TCL_ERROR;
	}

	switch ((enum field) index) {
	case EVENT_WARP:
	    if (Tcl_GetBooleanFromObj(interp, valuePtr, &warp) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (!(flags & KEY_BUTTON_MOTION_VIRTUAL)) {
		goto badopt;
	    }
	    break;
	case EVENT_WHEN:
	    pos = (Tcl_QueuePosition) TkFindStateNumObj(interp, optionPtr,
		    queuePosition, valuePtr);
	    if ((int) pos < -1) {
		return TCL_ERROR;
	    }
	    synch = 0;
	    if ((int) pos == -1) {
		synch = 1;
	    }
	    break;
	case EVENT_ABOVE:
	    if (NameToWindow(interp, tkwin, valuePtr, &tkwin2) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & CONFIG) {
		event.general.xconfigure.above = Tk_WindowId(tkwin2);
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_BORDER:
	    if (Tk_GetPixelsFromObj(interp,tkwin,valuePtr,&number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & (CREATE|CONFIG)) {
		event.general.xcreatewindow.border_width = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_BUTTON:
	    if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & BUTTON) {
		event.general.xbutton.button = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_COUNT:
	    if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & EXPOSE) {
		event.general.xexpose.count = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_DATA:
	    if (flags & VIRTUAL) {
		/*
		 * Do not increment reference count until after parsing
		 * completes and we know that the event generation is really
		 * going to happen.
		 */

		userDataObj = valuePtr;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_DELTA:
	    if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if ((flags & KEY) && (event.general.xkey.type == MouseWheelEvent)) {
		event.general.xkey.keycode = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_DETAIL:
	    number = TkFindStateNumObj(interp, optionPtr, notifyDetail,
		    valuePtr);
	    if (number < 0) {
		return TCL_ERROR;
	    }
	    if (flags & FOCUS) {
		event.general.xfocus.detail = number;
	    } else if (flags & CROSSING) {
		event.general.xcrossing.detail = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_FOCUS:
	    if (Tcl_GetBooleanFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & CROSSING) {
		event.general.xcrossing.focus = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_HEIGHT:
	    if (Tk_GetPixelsFromObj(interp, tkwin, valuePtr,
		    &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & EXPOSE) {
		event.general.xexpose.height = number;
	    } else if (flags & CONFIG) {
		event.general.xconfigure.height = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_KEYCODE:
	    if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if ((flags & KEY) && (event.general.xkey.type != MouseWheelEvent)) {
		event.general.xkey.keycode = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_KEYSYM: {
	    KeySym keysym;
	    const char *value;

	    value = Tcl_GetString(valuePtr);
	    keysym = TkStringToKeysym(value);
	    if (keysym == NoSymbol) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"unknown keysym \"%s\"", value));
		Tcl_SetErrorCode(interp, "TK", "LOOKUP", "KEYSYM", value,
			NULL);
		return TCL_ERROR;
	    }

	    TkpSetKeycodeAndState(tkwin, keysym, &event.general);
	    if (event.general.xkey.keycode == 0) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"no keycode for keysym \"%s\"", value));
		Tcl_SetErrorCode(interp, "TK", "LOOKUP", "KEYCODE", value,
			NULL);
		return TCL_ERROR;
	    }
	    if (!(flags & KEY)
		    || (event.general.xkey.type == MouseWheelEvent)) {
		goto badopt;
	    }
	    break;
	}
	case EVENT_MODE:
	    number = TkFindStateNumObj(interp,optionPtr,notifyMode,valuePtr);
	    if (number < 0) {
		return TCL_ERROR;
	    }
	    if (flags & CROSSING) {
		event.general.xcrossing.mode = number;
	    } else if (flags & FOCUS) {
		event.general.xfocus.mode = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_OVERRIDE:
	    if (Tcl_GetBooleanFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & CREATE) {
		event.general.xcreatewindow.override_redirect = number;
	    } else if (flags & MAP) {
		event.general.xmap.override_redirect = number;
	    } else if (flags & REPARENT) {
		event.general.xreparent.override_redirect = number;
	    } else if (flags & CONFIG) {
		event.general.xconfigure.override_redirect = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_PLACE:
	    number = TkFindStateNumObj(interp, optionPtr, circPlace, valuePtr);
	    if (number < 0) {
		return TCL_ERROR;
	    }
	    if (flags & CIRC) {
		event.general.xcirculate.place = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_ROOT:
	    if (NameToWindow(interp, tkwin, valuePtr, &tkwin2) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.root = Tk_WindowId(tkwin2);
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_ROOTX:
	    if (Tk_GetPixelsFromObj(interp,tkwin,valuePtr,&number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.x_root = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_ROOTY:
	    if (Tk_GetPixelsFromObj(interp,tkwin,valuePtr,&number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.y_root = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_SEND: {
	    const char *value;

	    value = Tcl_GetString(valuePtr);
	    if (isdigit(UCHAR(value[0]))) {
		/*
		 * Allow arbitrary integer values for the field; they are
		 * needed by a few of the tests in the Tk test suite.
		 */

		if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		    return TCL_ERROR;
		}




	    } else {



		if (Tcl_GetBooleanFromObj(interp,valuePtr,&number) != TCL_OK) {
		    return TCL_ERROR;
		}
	    }
	    event.general.xany.send_event = number;
	    break;
	}
	case EVENT_SERIAL:
	    if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    event.general.xany.serial = number;
	    break;
	case EVENT_STATE:
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		    return TCL_ERROR;
		}
		if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
		    event.general.xkey.state = number;
		} else {
		    event.general.xcrossing.state = number;
		}
	    } else if (flags & VISIBILITY) {
		number = TkFindStateNumObj(interp, optionPtr, visNotify,
			valuePtr);
		if (number < 0) {
		    return TCL_ERROR;
		}
		event.general.xvisibility.state = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_SUBWINDOW:
	    if (NameToWindow(interp, tkwin, valuePtr, &tkwin2) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.subwindow = Tk_WindowId(tkwin2);
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_TIME:




	    if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.time = number;
	    } else if (flags & PROP) {
		event.general.xproperty.time = number;
	    } else {
		goto badopt;
	    }
	    break;

	case EVENT_WIDTH:
	    if (Tk_GetPixelsFromObj(interp,tkwin,valuePtr,&number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & EXPOSE) {
		event.general.xexpose.width = number;
	    } else if (flags & (CREATE|CONFIG)) {
		event.general.xcreatewindow.width = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_WINDOW:
	    if (NameToWindow(interp, tkwin, valuePtr, &tkwin2) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & (CREATE|UNMAP|MAP|REPARENT|CONFIG|GRAVITY|CIRC)) {
		event.general.xcreatewindow.window = Tk_WindowId(tkwin2);
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_X:
	    if (Tk_GetPixelsFromObj(interp,tkwin,valuePtr,&number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.x = number;

		/*
		 * Only modify rootx as well if it hasn't been changed.






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static int
HandleEventGenerate(
    Tcl_Interp *interp,		/* Interp for errors return and name lookup. */
    Tk_Window mainWin,		/* Main window associated with interp. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    union { XEvent general; XVirtualEvent virtual; } event;

    const char *p;
    const char *name;
    const char *windowName;
    Tcl_QueuePosition pos;
    TkPattern pat;
    Tk_Window tkwin;
    Tk_Window tkwin2;
    TkWindow *mainPtr;
    EventMask eventMask;
    Tcl_Obj *userDataObj;
    int synch;
    int warp;
    unsigned count;
    unsigned flags;
    int number;
    unsigned i;

    static const char *const fieldStrings[] = {
	"-when",	"-above",	"-borderwidth",	"-button",
	"-count",	"-data",	"-delta",	"-detail",
	"-focus",	"-height",
	"-keycode",	"-keysym",	"-mode",	"-override",
	"-place",	"-root",	"-rootx",	"-rooty",
	"-sendevent",	"-serial",	"-state",	"-subwindow",
	"-time",	"-warp",	"-width",	"-window",
	"-x",		"-y",		NULL
    };
    enum field {
	EVENT_WHEN,	EVENT_ABOVE,	EVENT_BORDER,	EVENT_BUTTON,
	EVENT_COUNT,	EVENT_DATA,	EVENT_DELTA,	EVENT_DETAIL,
	EVENT_FOCUS,	EVENT_HEIGHT,
	EVENT_KEYCODE,	EVENT_KEYSYM,	EVENT_MODE,	EVENT_OVERRIDE,
	EVENT_PLACE,	EVENT_ROOT,	EVENT_ROOTX,	EVENT_ROOTY,
	EVENT_SEND,	EVENT_SERIAL,	EVENT_STATE,	EVENT_SUBWINDOW,
	EVENT_TIME,	EVENT_WARP,	EVENT_WIDTH,	EVENT_WINDOW,
	EVENT_X,	EVENT_Y
    };

    assert(mainWin);

    windowName = Tcl_GetString(objv[0]);
    if (!windowName[0]) {
	tkwin = mainWin;
    } else if (!NameToWindow(interp, mainWin, objv[0], &tkwin)) {
	return TCL_ERROR;
    }

    mainPtr = (TkWindow *) mainWin;

    if (!tkwin || mainPtr->mainPtr != ((TkWindow *) tkwin)->mainPtr) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"window id \"%s\" doesn't exist in this application",
		Tcl_GetString(objv[0])));
	Tcl_SetErrorCode(interp, "TK", "LOOKUP", "WINDOW", Tcl_GetString(objv[0]), NULL);

	return TCL_ERROR;
    }

    name = Tcl_GetString(objv[1]);

    p = name;
    eventMask = 0;
    userDataObj = NULL;
    if ((count = ParseEventDescription(interp, &p, &pat, &eventMask)) == 0) {

	return TCL_ERROR;
    }
    if (count != 1u) {
	Tcl_SetObjResult(interp,
		Tcl_NewStringObj("Double, Triple, or Quadruple modifier not allowed", -1));
	Tcl_SetErrorCode(interp, "TK", "EVENT", "BAD_MODIFIER", NULL);
	return TCL_ERROR;
    }
    if (*p) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("only one event specification allowed", -1));

	Tcl_SetErrorCode(interp, "TK", "EVENT", "MULTIPLE", NULL);
	return TCL_ERROR;
    }

    memset(&event, 0, sizeof(event));
    event.general.xany.type = pat.eventType;
    event.general.xany.serial = NextRequest(Tk_Display(tkwin));
    event.general.xany.send_event = 0;
    if (windowName[0]) {
	event.general.xany.window = Tk_WindowId(tkwin);
    } else {

	event.general.xany.window = RootWindow(Tk_Display(tkwin), Tk_ScreenNumber(tkwin));
    }
    event.general.xany.display = Tk_Display(tkwin);

    flags = flagArray[event.general.xany.type];
    if (flags & DESTROY) {
	/*
	 * Event DestroyNotify should be generated by destroying the window.
	 */

	Tk_DestroyWindow(tkwin);
	return TCL_OK;
    }
    if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
	event.general.xkey.state = pat.modMask;
	if ((flags & KEY) && event.general.xany.type != MouseWheelEvent) {
	    TkpSetKeycodeAndState(tkwin, pat.info, &event.general);
	} else if (flags & BUTTON) {
	    event.general.xbutton.button = pat.info;
	} else if (flags & VIRTUAL) {
	    event.virtual.name = pat.name;
	}
    }
    if (flags & (CREATE|UNMAP|MAP|REPARENT|CONFIG|GRAVITY|CIRC)) {
	event.general.xcreatewindow.window = event.general.xany.window;
    }

    if (flags & KEY_BUTTON_MOTION_CROSSING) {
	event.general.xkey.x_root = -1;
	event.general.xkey.y_root = -1;
    }

    if (event.general.xany.type == FocusIn || event.general.xany.type == FocusOut) {

	event.general.xany.send_event = GENERATED_FOCUS_EVENT_MAGIC;
    }

    /*
     * Process the remaining arguments to fill in additional fields of the event.

     */

    synch = 1;
    warp = 0;
    pos = TCL_QUEUE_TAIL;

    for (i = 2; i < (unsigned) objc; i += 2) {
	Tcl_Obj *optionPtr, *valuePtr;
	int badOpt = 0;
	int index;

	optionPtr = objv[i];
	valuePtr = objv[i + 1];

	if (Tcl_GetIndexFromObjStruct(interp, optionPtr, fieldStrings,
		sizeof(char *), "option", TCL_EXACT, &index) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (IsOdd(objc)) {
	    /*
	     * This test occurs after Tcl_GetIndexFromObj() so that "event
	     * generate <Button> -xyz" will return the error message that
	     * "-xyz" is a bad option, rather than that the value for "-xyz"
	     * is missing.
	     */

	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "value for \"%s\" missing", Tcl_GetString(optionPtr)));
	    Tcl_SetErrorCode(interp, "TK", "EVENT", "MISSING_VALUE", NULL);
	    return TCL_ERROR;
	}

	switch ((enum field) index) {
	case EVENT_WARP:
	    if (Tcl_GetBooleanFromObj(interp, valuePtr, &warp) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (!(flags & KEY_BUTTON_MOTION_VIRTUAL)) {
		badOpt = 1;
	    }
	    break;
	case EVENT_WHEN:
	    pos = (Tcl_QueuePosition) TkFindStateNumObj(interp, optionPtr, queuePosition, valuePtr);

	    if ((int) pos < -1) {
		return TCL_ERROR;
	    }

	    synch = ((int) pos == -1);


	    break;
	case EVENT_ABOVE:
	    if (!NameToWindow(interp, tkwin, valuePtr, &tkwin2)) {
		return TCL_ERROR;
	    }
	    if (flags & CONFIG) {
		event.general.xconfigure.above = Tk_WindowId(tkwin2);
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_BORDER:
	    if (Tk_GetPixelsFromObj(interp, tkwin, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & (CREATE|CONFIG)) {
		event.general.xcreatewindow.border_width = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_BUTTON:
	    if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & BUTTON) {
		event.general.xbutton.button = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_COUNT:
	    if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & EXPOSE) {
		event.general.xexpose.count = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_DATA:
	    if (flags & VIRTUAL) {
		/*
		 * Do not increment reference count until after parsing
		 * completes and we know that the event generation is really
		 * going to happen.
		 */

		userDataObj = valuePtr;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_DELTA:
	    if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if ((flags & KEY) && event.general.xkey.type == MouseWheelEvent) {
		event.general.xkey.keycode = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_DETAIL:
	    number = TkFindStateNumObj(interp, optionPtr, notifyDetail, valuePtr);

	    if (number < 0) {
		return TCL_ERROR;
	    }
	    if (flags & FOCUS) {
		event.general.xfocus.detail = number;
	    } else if (flags & CROSSING) {
		event.general.xcrossing.detail = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_FOCUS:
	    if (Tcl_GetBooleanFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & CROSSING) {
		event.general.xcrossing.focus = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_HEIGHT:
	    if (Tk_GetPixelsFromObj(interp, tkwin, valuePtr, &number) != TCL_OK) {

		return TCL_ERROR;
	    }
	    if (flags & EXPOSE) {
		event.general.xexpose.height = number;
	    } else if (flags & CONFIG) {
		event.general.xconfigure.height = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_KEYCODE:
	    if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if ((flags & KEY) && event.general.xkey.type != MouseWheelEvent) {
		event.general.xkey.keycode = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_KEYSYM: {
	    KeySym keysym;
	    const char *value;

	    value = Tcl_GetString(valuePtr);
	    keysym = TkStringToKeysym(value);
	    if (keysym == NoSymbol) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf("unknown keysym \"%s\"", value));

		Tcl_SetErrorCode(interp, "TK", "LOOKUP", "KEYSYM", value, NULL);

		return TCL_ERROR;
	    }

	    TkpSetKeycodeAndState(tkwin, keysym, &event.general);
	    if (event.general.xkey.keycode == 0) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf("no keycode for keysym \"%s\"", value));

		Tcl_SetErrorCode(interp, "TK", "LOOKUP", "KEYCODE", value, NULL);

		return TCL_ERROR;
	    }

	    if (!(flags & KEY) || (event.general.xkey.type == MouseWheelEvent)) {
		badOpt = 1;
	    }
	    break;
	}
	case EVENT_MODE:
	    if ((number = TkFindStateNumObj(interp, optionPtr, notifyMode, valuePtr)) < 0) {

		return TCL_ERROR;
	    }
	    if (flags & CROSSING) {
		event.general.xcrossing.mode = number;
	    } else if (flags & FOCUS) {
		event.general.xfocus.mode = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_OVERRIDE:
	    if (Tcl_GetBooleanFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & CREATE) {
		event.general.xcreatewindow.override_redirect = number;
	    } else if (flags & MAP) {
		event.general.xmap.override_redirect = number;
	    } else if (flags & REPARENT) {
		event.general.xreparent.override_redirect = number;
	    } else if (flags & CONFIG) {
		event.general.xconfigure.override_redirect = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_PLACE:
	    if ((number = TkFindStateNumObj(interp, optionPtr, circPlace, valuePtr)) < 0) {

		return TCL_ERROR;
	    }
	    if (flags & CIRC) {
		event.general.xcirculate.place = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_ROOT:
	    if (!NameToWindow(interp, tkwin, valuePtr, &tkwin2)) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.root = Tk_WindowId(tkwin2);
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_ROOTX:
	    if (Tk_GetPixelsFromObj(interp, tkwin, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.x_root = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_ROOTY:
	    if (Tk_GetPixelsFromObj(interp, tkwin, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.y_root = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_SEND: {
	    const char *value;

	    value = Tcl_GetString(valuePtr);
	    if (isdigit(UCHAR(value[0]))) {
		/*
		 * Allow arbitrary integer values for the field; they are
		 * needed by a few of the tests in the Tk test suite.
		 */

		if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		    return TCL_ERROR;
		}
		if (number) {
		    /*
		     * send_event only expects 1 or 0. We cannot allow arbitrary non-zero
		     * values, otherwise the thing with GENERATED_FOCUS_EVENT_MAGIC will not
		     * work.
		     */
		    number = 1;
		}
	    } else if (Tcl_GetBooleanFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }

	    event.general.xany.send_event |= number;
	    break;
	}
	case EVENT_SERIAL:
	    if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    event.general.xany.serial = number;
	    break;
	case EVENT_STATE:
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		    return TCL_ERROR;
		}
		if (flags & KEY_BUTTON_MOTION_VIRTUAL) {
		    event.general.xkey.state = number;
		} else {
		    event.general.xcrossing.state = number;
		}
	    } else if (flags & VISIBILITY) {
		if ((number = TkFindStateNumObj(interp, optionPtr, visNotify, valuePtr)) < 0) {


		    return TCL_ERROR;
		}
		event.general.xvisibility.state = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_SUBWINDOW:
	    if (!NameToWindow(interp, tkwin, valuePtr, &tkwin2)) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.subwindow = Tk_WindowId(tkwin2);
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_TIME: {
	    if (strcmp(Tcl_GetString(valuePtr), "current") == 0) {
		TkDisplay *dispPtr = ((TkWindow *) tkwin)->dispPtr;
		BindInfo *biPtr = mainPtr->mainPtr->bindInfo;
		number = dispPtr->lastEventTime + (CurrentTimeInMilliSecs() - biPtr->lastCurrentTime);
	    } else if (Tcl_GetIntFromObj(interp, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.time = number;
	    } else if (flags & PROP) {
		event.general.xproperty.time = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	}
	case EVENT_WIDTH:
	    if (Tk_GetPixelsFromObj(interp, tkwin, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & EXPOSE) {
		event.general.xexpose.width = number;
	    } else if (flags & (CREATE|CONFIG)) {
		event.general.xcreatewindow.width = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_WINDOW:
	    if (!NameToWindow(interp, tkwin, valuePtr, &tkwin2)) {
		return TCL_ERROR;
	    }
	    if (flags & (CREATE|UNMAP|MAP|REPARENT|CONFIG|GRAVITY|CIRC)) {
		event.general.xcreatewindow.window = Tk_WindowId(tkwin2);
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_X:
	    if (Tk_GetPixelsFromObj(interp, tkwin, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.x = number;

		/*
		 * Only modify rootx as well if it hasn't been changed.
3396
3397
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3400
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3406
3407
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3414
	    } else if (flags & EXPOSE) {
		event.general.xexpose.x = number;
	    } else if (flags & (CREATE|CONFIG|GRAVITY)) {
		event.general.xcreatewindow.x = number;
	    } else if (flags & REPARENT) {
		event.general.xreparent.x = number;
	    } else {
		goto badopt;
	    }
	    break;
	case EVENT_Y:
	    if (Tk_GetPixelsFromObj(interp,tkwin,valuePtr,&number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.y = number;

		/*
		 * Only modify rooty as well if it hasn't been changed.






|



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4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
	    } else if (flags & EXPOSE) {
		event.general.xexpose.x = number;
	    } else if (flags & (CREATE|CONFIG|GRAVITY)) {
		event.general.xcreatewindow.x = number;
	    } else if (flags & REPARENT) {
		event.general.xreparent.x = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	case EVENT_Y:
	    if (Tk_GetPixelsFromObj(interp, tkwin, valuePtr, &number) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (flags & KEY_BUTTON_MOTION_CROSSING) {
		event.general.xkey.y = number;

		/*
		 * Only modify rooty as well if it hasn't been changed.
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441

3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458


















3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
















3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519






3520
3521
3522
3523
3524
3525
3526
3527


3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541


3542
3543

3544
3545
3546
3547

3548
3549
3550
3551
3552
3553
3554
3555
	    } else if (flags & EXPOSE) {
		event.general.xexpose.y = number;
	    } else if (flags & (CREATE|CONFIG|GRAVITY)) {
		event.general.xcreatewindow.y = number;
	    } else if (flags & REPARENT) {
		event.general.xreparent.y = number;
	    } else {
		goto badopt;
	    }
	    break;
	}
	continue;

    badopt:
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"%s event doesn't accept \"%s\" option",
		name, Tcl_GetString(optionPtr)));
	Tcl_SetErrorCode(interp, "TK", "EVENT", "BAD_OPTION", NULL);
	return TCL_ERROR;

    }

    /*
     * Don't generate events for windows that don't exist yet.
     */

    if (!event.general.xany.window) {
	goto done;
    }

    if (userDataObj != NULL) {

	/*
	 * Must be virtual event to set that variable to non-NULL. Now we want
	 * to install the object into the event. Note that we must incr the
	 * refcount before firing it into the low-level event subsystem; the
	 * refcount will be decremented once the event has been processed.


















	 */

	event.virtual.user_data = userDataObj;
	Tcl_IncrRefCount(userDataObj);
    }

    /*
     * Now we have constructed the event, inject it into the event handling
     * code.
     */

    if (synch != 0) {
	Tk_HandleEvent(&event.general);
    } else {
	Tk_QueueWindowEvent(&event.general, pos);
    }

    /*
     * We only allow warping if the window is mapped.
     */

    if ((warp != 0) && Tk_IsMapped(tkwin)) {
	TkDisplay *dispPtr = TkGetDisplay(event.general.xmotion.display);

	Tk_Window warpWindow = Tk_IdToWindow(dispPtr->display,
		event.general.xmotion.window);

	if (!(dispPtr->flags & TK_DISPLAY_IN_WARP)) {
	    Tcl_DoWhenIdle(DoWarp, dispPtr);
	    dispPtr->flags |= TK_DISPLAY_IN_WARP;
	}

	if (warpWindow != dispPtr->warpWindow) {
	    if (warpWindow) {
		Tcl_Preserve(warpWindow);
	    }
	    if (dispPtr->warpWindow) {
		Tcl_Release(dispPtr->warpWindow);
	    }
	    dispPtr->warpWindow = warpWindow;
	}
	dispPtr->warpMainwin = mainWin;
	dispPtr->warpX = event.general.xmotion.x;
	dispPtr->warpY = event.general.xmotion.y;
    }

  done:
    Tcl_ResetResult(interp);
    return TCL_OK;
}

















static int
NameToWindow(
    Tcl_Interp *interp,		/* Interp for error return and name lookup. */
    Tk_Window mainWin,		/* Main window of application. */
    Tcl_Obj *objPtr,		/* Contains name or id string of window. */
    Tk_Window *tkwinPtr)	/* Filled with token for window. */
{
    const char *name = Tcl_GetString(objPtr);
    Tk_Window tkwin;







    if (name[0] == '.') {
	tkwin = Tk_NameToWindow(interp, name, mainWin);
	if (tkwin == NULL) {
	    return TCL_ERROR;
	}
    } else {
	Window id;



	/*
	 * Check for the winPtr being valid, even if it looks ok to
	 * TkpScanWindowId. [Bug #411307]
	 */

	if (TkpScanWindowId(NULL, name, &id) != TCL_OK) {
	    goto badWindow;
	}
	tkwin = Tk_IdToWindow(Tk_Display(mainWin), id);
	if (tkwin == NULL) {
	    goto badWindow;
	}
    }
    *tkwinPtr = tkwin;


    return TCL_OK;


  badWindow:
    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "bad window name/identifier \"%s\"", name));
    Tcl_SetErrorCode(interp, "TK", "LOOKUP", "WINDOW_ID", name, NULL);

    return TCL_ERROR;
}

/*
 *-------------------------------------------------------------------------
 *
 * DoWarp --
 *






|



<

|
|
|
<
|
|
>






|
<
<
<
|
<
|
|
|
|
|
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>


<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
|
|

|
<

|
|
|
|

|
|
|
|
|
|
|
|
|
|
|
|
|
|
|



>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>








|


>
>
>
>
>
>

|
<
|




>
>

|



|
<
<
|
<
<

|
|
>
>
|
|
>
|
<
|
<
>
|







4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318

4319
4320
4321
4322

4323
4324
4325
4326
4327
4328
4329
4330
4331
4332



4333

4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358



















4359
4360
4361
4362

4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421

4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434


4435


4436
4437
4438
4439
4440
4441
4442
4443
4444

4445

4446
4447
4448
4449
4450
4451
4452
4453
4454
	    } else if (flags & EXPOSE) {
		event.general.xexpose.y = number;
	    } else if (flags & (CREATE|CONFIG|GRAVITY)) {
		event.general.xcreatewindow.y = number;
	    } else if (flags & REPARENT) {
		event.general.xreparent.y = number;
	    } else {
		badOpt = 1;
	    }
	    break;
	}


    	if (badOpt) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "%s event doesn't accept \"%s\" option", name, Tcl_GetString(optionPtr)));

	    Tcl_SetErrorCode(interp, "TK", "EVENT", "BAD_OPTION", NULL);
	    return TCL_ERROR;
	}
    }

    /*
     * Don't generate events for windows that don't exist yet.
     */

    if (event.general.xany.window) {



	if (userDataObj) {

	    /*
	     * Must be virtual event to set that variable to non-NULL. Now we want
	     * to install the object into the event. Note that we must incr the
	     * refcount before firing it into the low-level event subsystem; the
	     * refcount will be decremented once the event has been processed.
	     */
	    event.virtual.user_data = userDataObj;
	    Tcl_IncrRefCount(userDataObj);
	}

	/*
	 * Now we have constructed the event, inject it into the event handling
	 * code.
	 */

	if (synch) {
	    Tk_HandleEvent(&event.general);
	} else {
	    Tk_QueueWindowEvent(&event.general, pos);
	}

	/*
	 * We only allow warping if the window is mapped.
	 */




















	if (warp && Tk_IsMapped(tkwin)) {
	    TkDisplay *dispPtr = TkGetDisplay(event.general.xmotion.display);

	    Tk_Window warpWindow = Tk_IdToWindow(dispPtr->display, event.general.xmotion.window);


	    if (!(dispPtr->flags & TK_DISPLAY_IN_WARP)) {
		Tcl_DoWhenIdle(DoWarp, dispPtr);
		dispPtr->flags |= TK_DISPLAY_IN_WARP;
	    }

	    if (warpWindow != dispPtr->warpWindow) {
		if (warpWindow) {
		    Tcl_Preserve(warpWindow);
		}
		if (dispPtr->warpWindow) {
		    Tcl_Release(dispPtr->warpWindow);
		}
		dispPtr->warpWindow = warpWindow;
	    }
	    dispPtr->warpMainwin = mainWin;
	    dispPtr->warpX = event.general.xmotion.x;
	    dispPtr->warpY = event.general.xmotion.y;
	}
    }

    Tcl_ResetResult(interp);
    return TCL_OK;
}
/*
 *---------------------------------------------------------------------------
 *
 * NameToWindow --
 *
 *	Helper function for lookup of a window given its path name. Our
 *	version is able to handle window id's.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	None.
 *
 *---------------------------------------------------------------------------
 */

static int
NameToWindow(
    Tcl_Interp *interp,		/* Interp for error return and name lookup. */
    Tk_Window mainWin,		/* Main window of application. */
    Tcl_Obj *objPtr,		/* Contains name or id string of window. */
    Tk_Window *tkwinPtr)	/* Filled with token for window. */
{
    const char *name;
    Tk_Window tkwin;

    assert(mainWin);
    assert(objPtr);
    assert(tkwinPtr);

    name = Tcl_GetString(objPtr);

    if (name[0] == '.') {
	if (!(tkwin = Tk_NameToWindow(interp, name, mainWin))) {

	    return 0;
	}
    } else {
	Window id;

	tkwin = NULL;

	/*
	 * Check for the winPtr being valid, even if it looks okay to
	 * TkpScanWindowId. [Bug #411307]
	 */

	if (TkpScanWindowId(NULL, name, &id) == TCL_OK) {


	    tkwin = Tk_IdToWindow(Tk_Display(mainWin), id);


	}

	if (!tkwin) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf("bad window name/identifier \"%s\"", name));
	    Tcl_SetErrorCode(interp, "TK", "LOOKUP", "WINDOW_ID", name, NULL);
	    return 0;
	}
    }


    assert(tkwin);

    *tkwinPtr = tkwin;
    return 1;
}

/*
 *-------------------------------------------------------------------------
 *
 * DoWarp --
 *
3566
3567
3568
3569
3570
3571
3572


3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
static void
DoWarp(
    ClientData clientData)
{
    TkDisplay *dispPtr = clientData;



    /*
     * DoWarp was scheduled only if the window was mapped. It needs to be
     * still mapped at the time the present idle callback is executed. Also
     * one needs to guard against window destruction in the meantime.
     * Finally, the case warpWindow == NULL is special in that it means
     * the whole screen.
     */

    if ((dispPtr->warpWindow == NULL) ||
            (Tk_IsMapped(dispPtr->warpWindow)
            && (Tk_WindowId(dispPtr->warpWindow) != None))) {
        TkpWarpPointer(dispPtr);
        XForceScreenSaver(dispPtr->display, ScreenSaverReset);
    }

    if (dispPtr->warpWindow) {
	Tcl_Release(dispPtr->warpWindow);
	dispPtr->warpWindow = NULL;






>
>








|
|
<







4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483

4484
4485
4486
4487
4488
4489
4490
static void
DoWarp(
    ClientData clientData)
{
    TkDisplay *dispPtr = clientData;

    assert(clientData);

    /*
     * DoWarp was scheduled only if the window was mapped. It needs to be
     * still mapped at the time the present idle callback is executed. Also
     * one needs to guard against window destruction in the meantime.
     * Finally, the case warpWindow == NULL is special in that it means
     * the whole screen.
     */

    if (!dispPtr->warpWindow ||
            (Tk_IsMapped(dispPtr->warpWindow) && Tk_WindowId(dispPtr->warpWindow) != None)) {

        TkpWarpPointer(dispPtr);
        XForceScreenSaver(dispPtr->display, ScreenSaverReset);
    }

    if (dispPtr->warpWindow) {
	Tcl_Release(dispPtr->warpWindow);
	dispPtr->warpWindow = NULL;
3615
3616
3617
3618
3619
3620
3621


3622
3623
3624
3625



3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
static Tk_Uid
GetVirtualEventUid(
    Tcl_Interp *interp,
    char *virtString)
{
    Tk_Uid uid;
    size_t length;



    length = strlen(virtString);

    if (length < 5 || virtString[0] != '<' || virtString[1] != '<' ||



	    virtString[length - 2] != '>' || virtString[length - 1] != '>') {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"virtual event \"%s\" is badly formed", virtString));
	Tcl_SetErrorCode(interp, "TK", "EVENT", "VIRTUAL", "MALFORMED", NULL);
	return NULL;
    }
    virtString[length - 2] = '\0';
    uid = Tk_GetUid(virtString + 2);
    virtString[length - 2] = '>';







>
>



|
>
>
>
|
|
<







4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532

4533
4534
4535
4536
4537
4538
4539
static Tk_Uid
GetVirtualEventUid(
    Tcl_Interp *interp,
    char *virtString)
{
    Tk_Uid uid;
    size_t length;

    assert(virtString);

    length = strlen(virtString);

    if (length < 5
	    || virtString[0] != '<'
	    || virtString[1] != '<'
	    || virtString[length - 2] != '>'
	    || virtString[length - 1] != '>') {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf("virtual event \"%s\" is badly formed", virtString));

	Tcl_SetErrorCode(interp, "TK", "EVENT", "VIRTUAL", "MALFORMED", NULL);
	return NULL;
    }
    virtString[length - 2] = '\0';
    uid = Tk_GetUid(virtString + 2);
    virtString[length - 2] = '>';

3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681


3682
3683
3684
3685
3686
3687
3688
3689



3690
3691





3692
3693
3694
3695
3696
3697
3698
3699

3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715

3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731

3732
3733
3734
3735
3736
3737
3738
3739
3740


3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753

3754
3755
3756
3757
3758
3759
3760
3761
3762


3763
3764
3765

3766
3767
3768
3769

3770

3771
3772
3773
3774
3775



3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793

3794
3795
3796


3797




3798
3799
3800
3801
3802

3803
3804
3805
3806
3807
3808
3809

3810
3811
3812
3813
3814
3815
3816
 *
 *----------------------------------------------------------------------
 */

static PatSeq *
FindSequence(
    Tcl_Interp *interp,		/* Interpreter to use for error reporting. */
    Tcl_HashTable *patternTablePtr,
				/* Table to use for lookup. */
    ClientData object,		/* For binding table, token for object with
				 * which binding is associated. For virtual
				 * event table, NULL. */
    const char *eventString,	/* String description of pattern to match on.
				 * See user documentation for details. */
    int create,			/* 0 means don't create the entry if it
				 * doesn't already exist. Non-zero means
				 * create. */
    int allowVirtual,		/* 0 means that virtual events are not allowed
				 * in the sequence. Non-zero otherwise. */
    unsigned long *maskPtr)	/* *maskPtr is filled in with the event types
				 * on which this pattern sequence depends. */
{
    TkPattern pats[EVENT_BUFFER_SIZE];


    int numPats, virtualFound;
    const char *p;
    TkPattern *patPtr;
    PatSeq *psPtr;
    Tcl_HashEntry *hPtr;
    int flags, count, isNew;
    size_t sequenceSize;
    unsigned long eventMask;



    PatternTableKey key;






    /*
     *-------------------------------------------------------------
     * Step 1: parse the pattern string to produce an array of Patterns. The
     * array is generated backwards, so that the lowest-indexed pattern
     * corresponds to the last event that must occur.
     *-------------------------------------------------------------
     */


    p = eventString;
    flags = 0;
    eventMask = 0;
    virtualFound = 0;

    patPtr = &pats[EVENT_BUFFER_SIZE-1];
    for (numPats = 0; numPats < EVENT_BUFFER_SIZE; numPats++, patPtr--) {
	while (isspace(UCHAR(*p))) {
	    p++;
	}
	if (*p == '\0') {
	    break;
	}

	count = ParseEventDescription(interp, &p, patPtr, &eventMask);
	if (count == 0) {

	    return NULL;
	}

	if (eventMask & VirtualEventMask) {
	    if (allowVirtual == 0) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"virtual event not allowed in definition of another virtual event",
			-1));
		Tcl_SetErrorCode(interp, "TK", "EVENT", "VIRTUAL", "INNER",
			NULL);
		return NULL;
	    }
	    virtualFound = 1;
	}

	/*

	 * Replicate events for DOUBLE, TRIPLE, QUADRUPLE.
	 */

	while ((count-- > 1) && (numPats < EVENT_BUFFER_SIZE-1)) {
	    flags |= PAT_NEARBY;
	    patPtr[-1] = patPtr[0];
	    patPtr--;
	    numPats++;
	}


    }

    /*
     *-------------------------------------------------------------
     * Step 2: find the sequence in the binding table if it exists, and add a
     * new sequence to the table if it doesn't.
     *-------------------------------------------------------------
     */

    if (numPats == 0) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"no events specified in binding", -1));
	Tcl_SetErrorCode(interp, "TK", "EVENT", "NO_EVENTS", NULL);

	return NULL;
    }
    if ((numPats > 1) && (virtualFound != 0)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"virtual events may not be composed", -1));
	Tcl_SetErrorCode(interp, "TK", "EVENT", "VIRTUAL", "COMPOSITION",
		NULL);
	return NULL;
    }



    patPtr = &pats[EVENT_BUFFER_SIZE-numPats];
    memset(&key, 0, sizeof(key));

    key.object = object;
    key.type = patPtr->eventType;
    key.detail = patPtr->detail;
    hPtr = Tcl_CreateHashEntry(patternTablePtr, (char *) &key, &isNew);

    sequenceSize = numPats*sizeof(TkPattern);

    if (!isNew) {
	for (psPtr = Tcl_GetHashValue(hPtr); psPtr != NULL;
		psPtr = psPtr->nextSeqPtr) {
	    if ((numPats == psPtr->numPats)
		    && ((flags & PAT_NEARBY) == (psPtr->flags & PAT_NEARBY))



		    && (memcmp(patPtr, psPtr->pats, sequenceSize) == 0)) {
		goto done;
	    }
	}
    }
    if (!create) {
	if (isNew) {
	    Tcl_DeleteHashEntry(hPtr);
	}

	/*
	 * No binding exists for the sequence, so return an empty error. This
	 * is a special error that the caller will check for in order to
	 * silently ignore this case. This is a hack that maintains backward
	 * compatibility for Tk_GetBinding but the various "bind" commands
	 * silently ignore missing bindings.
	 */


	return NULL;
    }
    psPtr = ckalloc(sizeof(PatSeq) + (numPats-1)*sizeof(TkPattern));


    psPtr->numPats = numPats;




    psPtr->script = NULL;
    psPtr->flags = flags;
    psPtr->nextSeqPtr = Tcl_GetHashValue(hPtr);
    psPtr->hPtr = hPtr;
    psPtr->voPtr = NULL;

    psPtr->nextObjPtr = NULL;
    Tcl_SetHashValue(hPtr, psPtr);

    memcpy(psPtr->pats, patPtr, sequenceSize);

  done:
    *maskPtr = eventMask;

    return psPtr;
}

/*
 *---------------------------------------------------------------------------
 *
 * ParseEventDescription --






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 *
 *----------------------------------------------------------------------
 */

static PatSeq *
FindSequence(
    Tcl_Interp *interp,		/* Interpreter to use for error reporting. */

    LookupTables *lookupTables,	/* Tables used for lookup. */
    ClientData object,		/* For binding table, token for object with which binding is
    				 * associated. For virtual event table, NULL. */

    const char *eventString,	/* String description of pattern to match on. See user
    				 * documentation for details. */
    int create,		/* 0 means don't create the entry if it doesn't already exist.

    				 * 1 means create. */
    int allowVirtual,		/* 0 means that virtual events are not allowed in the sequence.
    				 * 1 otherwise. */
    EventMask *maskPtr)		/* *maskPtr is filled in with the event types on which this
    				 * pattern sequence depends. */
{
    unsigned patsBufSize = 1;
    unsigned numPats;
    unsigned totalCount = 0;
    int virtualFound = 0;
    const char *p = eventString;
    TkPattern *patPtr;
    PatSeq *psPtr;
    Tcl_HashEntry *hPtr;
    int isNew;

    unsigned count;
    unsigned maxCount = 0;
    EventMask eventMask = 0;
    ModMask modMask = 0;
    PatternTableKey key;

    assert(lookupTables);
    assert(eventString);

    psPtr = ckalloc(PATSEQ_MEMSIZE(patsBufSize));

    /*
     *------------------------------------------------------------------
     * Step 1: parse the pattern string to produce an array of Patterns.


     *------------------------------------------------------------------
     */

    for (patPtr = psPtr->pats, numPats = 0; *(p = SkipSpaces(p)); ++patPtr, ++numPats) {
	if (numPats >= patsBufSize) {
	    unsigned pos = patPtr - psPtr->pats;
	    patsBufSize += patsBufSize;

	    psPtr = ckrealloc(psPtr, PATSEQ_MEMSIZE(patsBufSize));
	    patPtr = psPtr->pats + pos;



	}




	if ((count = ParseEventDescription(interp, &p, patPtr, &eventMask)) == 0) {
	    /* error encountered */
	    ckfree(psPtr);
	    return NULL;
	}

	if (eventMask & VirtualEventMask) {
	    if (!allowVirtual) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"virtual event not allowed in definition of another virtual event", -1));

		Tcl_SetErrorCode(interp, "TK", "EVENT", "VIRTUAL", "INNER", NULL);
		ckfree(psPtr);
		return NULL;
	    }
	    virtualFound = 1;
	}


	if (count > 1u) {
	    maxCount = Max(count, maxCount);

	}






	totalCount += count;
	modMask |= patPtr->modMask;
    }

    /*
     *------------------------------------------------------------------
     * Step 2: find the sequence in the binding table if it exists, and
     * add a new sequence to the table if it doesn't.
     *------------------------------------------------------------------
     */

    if (numPats == 0) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("no events specified in binding", -1));

	Tcl_SetErrorCode(interp, "TK", "EVENT", "NO_EVENTS", NULL);
	ckfree(psPtr);
	return NULL;
    }
    if (numPats > 1u && virtualFound) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("virtual events may not be composed", -1));

	Tcl_SetErrorCode(interp, "TK", "EVENT", "VIRTUAL", "COMPOSITION", NULL);
	ckfree(psPtr);
	return NULL;
    }
    if (patsBufSize > numPats) {
	psPtr = ckrealloc(psPtr, PATSEQ_MEMSIZE(numPats));
    }


    patPtr = psPtr->pats;
    psPtr->object = object;
    SetupPatternKey(&key, psPtr);

    hPtr = Tcl_CreateHashEntry(&lookupTables->patternTable, (char *) &key, &isNew);
    if (!isNew) {
	unsigned sequenceSize = numPats*sizeof(TkPattern);
	PatSeq *psPtr2;

	for (psPtr2 = Tcl_GetHashValue(hPtr); psPtr2; psPtr2 = psPtr2->nextSeqPtr) {
	    assert(TEST_PSENTRY(psPtr2));
	    if (numPats == psPtr2->numPats && memcmp(patPtr, psPtr2->pats, sequenceSize) == 0) {
		ckfree(psPtr);
		if (maskPtr) {
		    *maskPtr = eventMask;
		}
		return psPtr2;

	    }
	}
    }
    if (!create) {
	if (isNew) {
	    Tcl_DeleteHashEntry(hPtr);
	}

	/*
	 * No binding exists for the sequence, so return an empty error. This
	 * is a special error that the caller will check for in order to
	 * silently ignore this case. This is a hack that maintains backward
	 * compatibility for Tk_GetBinding but the various "bind" commands
	 * silently ignore missing bindings.
	 */

	ckfree(psPtr);
	return NULL;
    }

    DEBUG(countSeqItems += 1);

    psPtr->numPats = numPats;
    psPtr->count = totalCount;
    psPtr->number = lookupTables->number++;
    psPtr->added = 0;
    psPtr->modMaskUsed = (modMask != 0);
    psPtr->script = NULL;

    psPtr->nextSeqPtr = Tcl_GetHashValue(hPtr);
    psPtr->hPtr = hPtr;
    psPtr->ptr.nextObj = NULL;
    assert(psPtr->ptr.owners == NULL);
    DEBUG(psPtr->owned = 0);
    Tcl_SetHashValue(hPtr, psPtr);


    if (maskPtr) {

	*maskPtr = eventMask;
    }
    return psPtr;
}

/*
 *---------------------------------------------------------------------------
 *
 * ParseEventDescription --
3827
3828
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3833

3834



















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3957
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3968



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3971
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4072
 *	On exit, eventStringPtr points to rest of event string (after the
 *	closing '>', so that this function can be called repeatedly to parse
 *	all the events in the entire sequence.
 *
 *---------------------------------------------------------------------------
 */


static int



















ParseEventDescription(
    Tcl_Interp *interp,		/* For error messages. */
    const char **eventStringPtr,/* On input, holds a pointer to start of event
				 * string. On exit, gets pointer to rest of
				 * string after parsed event. */
    TkPattern *patPtr,		/* Filled with the pattern parsed from the
				 * event string. */
    unsigned long *eventMaskPtr)/* Filled with event mask of matched event. */
{
    char *p;
    unsigned long eventMask;
    int count, eventFlags;
#define FIELD_SIZE 48
    char field[FIELD_SIZE];
    Tcl_HashEntry *hPtr;
    Tcl_DString copy;

    Tcl_DStringInit(&copy);
    p = Tcl_DStringAppend(&copy, *eventStringPtr, -1);

    patPtr->eventType = -1;
    patPtr->needMods = 0;
    patPtr->detail.clientData = 0;

    eventMask = 0;
    count = 1;


    /*
     * Handle simple ASCII characters.
     */

    if (*p != '<') {
	char string[2];

	patPtr->eventType = KeyPress;
	eventMask = KeyPressMask;
	string[0] = *p;
	string[1] = 0;
	patPtr->detail.keySym = TkStringToKeysym(string);
	if (patPtr->detail.keySym == NoSymbol) {
	    if (isprint(UCHAR(*p))) {


		patPtr->detail.keySym = *p;
	    } else {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"bad ASCII character 0x%x", UCHAR(*p)));
		Tcl_SetErrorCode(interp, "TK", "EVENT", "BAD_CHAR", NULL);
		count = 0;
		goto done;
	    }
	}
	p++;
	goto end;
    }

    /*
     * A fancier event description. This can be either a virtual event or a
     * physical event.
     *
     * A virtual event description consists of:
     *
     * 1. double open angle brackets.
     * 2. virtual event name.
     * 3. double close angle brackets.
     *
     * A physical event description consists of:
     *
     * 1. open angle bracket.
     * 2. any number of modifiers, each followed by spaces or dashes.
     * 3. an optional event name.
     * 4. an option button or keysym name. Either this or item 3 *must* be
     *	  present; if both are present then they are separated by spaces or
     *	  dashes.
     * 5. a close angle bracket.
     */

    p++;
    if (*p == '<') {

	/*
	 * This is a virtual event: soak up all the characters up to the next
	 * '>'.
	 */

	char *field = p + 1;


	p = strchr(field, '>');
	if (p == field) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "virtual event \"<<>>\" is badly formed", -1));
	    Tcl_SetErrorCode(interp, "TK", "EVENT", "VIRTUAL", "MALFORMED",
		    NULL);
	    count = 0;
	    goto done;
	}
	if ((p == NULL) || (p[1] != '>')) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "missing \">\" in virtual binding", -1));
	    Tcl_SetErrorCode(interp, "TK", "EVENT", "VIRTUAL", "MALFORMED",
		    NULL);
	    count = 0;
	    goto done;
	}
	*p = '\0';
	patPtr->eventType = VirtualEvent;
	eventMask = VirtualEventMask;
	patPtr->detail.name = Tk_GetUid(field);
	*p = '>';

	p += 2;
	goto end;
    }


    while (1) {





	ModInfo *modPtr;

	p = GetField(p, field, FIELD_SIZE);

	if (*p == '>') {
	    /*
	     * This solves the problem of, e.g., <Control-M> being
	     * misinterpreted as Control + Meta + missing keysym instead of
	     * Control + KeyPress + M.
	     */

















































	     break;
	}
	hPtr = Tcl_FindHashEntry(&modTable, field);
	if (hPtr == NULL) {
	    break;
	}
	modPtr = Tcl_GetHashValue(hPtr);
	patPtr->needMods |= modPtr->mask;
	if (modPtr->flags & MULT_CLICKS) {
	    int i = modPtr->flags & MULT_CLICKS;























































































	    count = 2;



	    while (i >>= 1) {
		count++;












	    }
	}
	while ((*p == '-') || isspace(UCHAR(*p))) {
	    p++;
	}
    }

    eventFlags = 0;
    hPtr = Tcl_FindHashEntry(&eventTable, field);
    if (hPtr != NULL) {
	const EventInfo *eiPtr = Tcl_GetHashValue(hPtr);

	patPtr->eventType = eiPtr->type;
	eventFlags = flagArray[eiPtr->type];
	eventMask = eiPtr->eventMask;
	while ((*p == '-') || isspace(UCHAR(*p))) {
	    p++;
	}
	p = GetField(p, field, FIELD_SIZE);
    }
    if (*field != '\0') {
	if ((*field >= '1') && (*field <= '5') && (field[1] == '\0')) {
	    if (eventFlags == 0) {
		patPtr->eventType = ButtonPress;
		eventMask = ButtonPressMask;
	    } else if (eventFlags & KEY) {
		goto getKeysym;
	    } else if (!(eventFlags & BUTTON)) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"specified button \"%s\" for non-button event",
			field));
		Tcl_SetErrorCode(interp, "TK", "EVENT", "NON_BUTTON", NULL);
		count = 0;
		goto done;
	    }
	    patPtr->detail.button = (*field - '0');
	} else {

	getKeysym:
	    patPtr->detail.keySym = TkStringToKeysym(field);
	    if (patPtr->detail.keySym == NoSymbol) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"bad event type or keysym \"%s\"", field));
		Tcl_SetErrorCode(interp, "TK", "LOOKUP", "KEYSYM", field,
			NULL);
		count = 0;
		goto done;
	    }
	    if (eventFlags == 0) {
		patPtr->eventType = KeyPress;
		eventMask = KeyPressMask;
	    } else if (!(eventFlags & KEY)) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"specified keysym \"%s\" for non-key event", field));
		Tcl_SetErrorCode(interp, "TK", "EVENT", "NON_KEY", NULL);
		count = 0;
		goto done;
	    }
	}
    } else if (eventFlags == 0) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"no event type or button # or keysym", -1));
	Tcl_SetErrorCode(interp, "TK", "EVENT", "UNMODIFIABLE", NULL);
	count = 0;
	goto done;
    }

    while ((*p == '-') || isspace(UCHAR(*p))) {
	p++;
    }
    if (*p != '>') {
	while (*p != '\0') {
	    p++;
	    if (*p == '>') {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"extra characters after detail in binding", -1));
		Tcl_SetErrorCode(interp, "TK", "EVENT", "PAST_DETAIL", NULL);
		count = 0;
		goto done;
	    }
	}
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"missing \">\" in binding", -1));
	Tcl_SetErrorCode(interp, "TK", "EVENT", "MALFORMED", NULL);
	count = 0;
	goto done;
    }
    p++;

  end:
    *eventStringPtr += (p - Tcl_DStringValue(&copy));
    *eventMaskPtr |= eventMask;
  done:
    Tcl_DStringFree(&copy);
    return count;
}

/*
 *----------------------------------------------------------------------
 *
 * GetField --
 *






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 *	On exit, eventStringPtr points to rest of event string (after the
 *	closing '>', so that this function can be called repeatedly to parse
 *	all the events in the entire sequence.
 *
 *---------------------------------------------------------------------------
 */

/* helper function */
static unsigned
FinalizeParseEventDescription(
    Tcl_Interp *interp,
    TkPattern *patPtr,
    unsigned count,
    Tcl_Obj* errorObj,
    const char* errCode)
{
    assert(patPtr);
    assert(!errorObj == (count > 0));

    if (errorObj) {
	Tcl_SetObjResult(interp, errorObj);
	Tcl_SetErrorCode(interp, "TK", "EVENT", errCode, NULL);
    }
    patPtr->count = count;
    return count;
}

static unsigned
ParseEventDescription(
    Tcl_Interp *interp,		/* For error messages. */
    const char **eventStringPtr,/* On input, holds a pointer to start of event string. On exit,

    				 * gets pointer to rest of string after parsed event. */
    TkPattern *patPtr,		/* Filled with the pattern parsed from the event string. */

    EventMask *eventMaskPtr)	/* Filled with event mask of matched event. */
{
    const char *p;
    EventMask eventMask = 0;
    unsigned count = 1;






    assert(eventStringPtr);
    assert(patPtr);
    assert(eventMaskPtr);



    p = *eventStringPtr;

    memset(patPtr, 0, sizeof(TkPattern)); /* otherwise memcmp doesn't work */

    /*
     * Handle simple ASCII characters.
     */

    if (*p != '<') {
	char string[2];

	patPtr->eventType = KeyPress;
	eventMask = KeyPressMask;
	string[0] = *p;
	string[1] = '\0';
	patPtr->info = TkStringToKeysym(string);
	if (patPtr->info == NoSymbol) {
	    if (!isprint(UCHAR(*p))) {
		return FinalizeParseEventDescription(
			interp,
			patPtr, 0,


			Tcl_ObjPrintf("bad ASCII character 0x%x", UCHAR(*p)), "BAD_CHAR");



	    }




	    patPtr->info = *p;




















	}
	++p;

    } else {
	/*
	 * A fancier event description. This can be either a virtual event or a physical event.


	 *

	 * A virtual event description consists of:
	 *







	 * 1. double open angle brackets.



	 * 2. virtual event name.



	 * 3. double close angle brackets.






	 *



	 * A physical event description consists of:
	 *
	 * 1. open angle bracket.
	 * 2. any number of modifiers, each followed by spaces or dashes.
	 * 3. an optional event name.
	 * 4. an option button or keysym name. Either this or item 3 *must* be present; if both
	 *    are present then they are separated by spaces or dashes.
	 * 5. a close angle bracket.
	 */


	++p;
	if (*p == '<') {
	    /*
	     * This is a virtual event: soak up all the characters up to the next '>'.


	     */

	    const char *field = p + 1;
	    char buf[256];
	    char* bufPtr = buf;
	    unsigned size;

	    p = strchr(field, '>');
	    if (p == field) {
		return FinalizeParseEventDescription(
			interp,
			patPtr, 0,
			Tcl_NewStringObj("virtual event \"<<>>\" is badly formed", -1), "MALFORMED");
	    }
	    if (!p || p[1] != '>') {
		return FinalizeParseEventDescription(
			interp,
			patPtr, 0,
			Tcl_NewStringObj("missing \">\" in virtual binding", -1), "MALFORMED");
	    }

	    size = p - field;
	    if (size >= sizeof(buf)) {
		bufPtr = ckalloc(size + 1);
	    }
	    strncpy(bufPtr, field, size);
	    bufPtr[size] = '\0';
	    eventMask = VirtualEventMask;
	    patPtr->eventType = VirtualEvent;
	    patPtr->name = Tk_GetUid(bufPtr);
	    if (bufPtr != buf) {
		ckfree(bufPtr);
	    }
	    p += 2;
	} else {
	    unsigned eventFlags;
	    char field[512];
	    Tcl_HashEntry *hPtr;

	    while (1) {
		ModInfo *modPtr;

		p = GetField(p, field, sizeof(field));
		if (*p == '>') {
		    /*
		     * This solves the problem of, e.g., <Control-M> being
		     * misinterpreted as Control + Meta + missing keysym instead of
		     * Control + KeyPress + M.
		     */

		     break;
		}
		if (!(hPtr = Tcl_FindHashEntry(&modTable, field))) {

		    break;
		}
		modPtr = Tcl_GetHashValue(hPtr);
		patPtr->modMask |= modPtr->mask;
		if (modPtr->flags & MULT_CLICKS) {
		    unsigned i = modPtr->flags & MULT_CLICKS;

		    count = 2;
		    while (i >>= 1) {
			++count;
		    }
		}
		p = SkipFieldDelims(p);
	    }

	    eventFlags = 0;
	    if ((hPtr = Tcl_FindHashEntry(&eventTable, field))) {
		const EventInfo *eiPtr = Tcl_GetHashValue(hPtr);

		patPtr->eventType = eiPtr->type;
		eventFlags = flagArray[eiPtr->type];
		eventMask = eiPtr->eventMask;
		p = GetField(SkipFieldDelims(p), field, sizeof(field));
	    }
	    if (*field) {
		unsigned button = GetButtonNumber(field);

		if ((eventFlags & BUTTON)
			|| (button && eventFlags == 0)
			|| (SUPPORT_ADDITIONAL_MOTION_SYNTAX && (eventFlags & MOTION) && button == 0)) {
		    /* This must be a button (or bad motion) event */
		    if (button == 0) {
			return FinalizeParseEventDescription(
				interp,
				patPtr, 0,
				Tcl_ObjPrintf("bad button number \"%s\"", field), "BUTTON");
		    }
		    patPtr->info = button;
		    if (!(eventFlags & BUTTON)) {
			patPtr->eventType = ButtonPress;
			eventMask = ButtonPressMask;
		    }
		} else if ((eventFlags & KEY) || eventFlags == 0) {
		    /* This must be a key event */
		    patPtr->info = TkStringToKeysym(field);
		    if (patPtr->info == NoSymbol) {
			return FinalizeParseEventDescription(
				interp,
				patPtr, 0,
				Tcl_ObjPrintf("bad event type or keysym \"%s\"", field), "KEYSYM");
		    }
		    if (!(eventFlags & KEY)) {
			patPtr->eventType = KeyPress;
			eventMask = KeyPressMask;
		    }
		} else if (button) {
		    if (!SUPPORT_ADDITIONAL_MOTION_SYNTAX || patPtr->eventType != MotionNotify) {
			return FinalizeParseEventDescription(
				interp,
				patPtr, 0,
				Tcl_ObjPrintf("specified button \"%s\" for non-button event", field),
				"NON_BUTTON");
		    }
#if SUPPORT_ADDITIONAL_MOTION_SYNTAX
		    patPtr->modMask |= TkGetButtonMask(button);
		    p = SkipFieldDelims(p);
		    while (*p && *p != '>') {
			p = SkipFieldDelims(GetField(p, field, sizeof(field)));
			if ((button = GetButtonNumber(field)) == 0) {
			    return FinalizeParseEventDescription(
				    interp,
				    patPtr, 0,
				    Tcl_ObjPrintf("bad button number \"%s\"", field), "BUTTON");
			}
			patPtr->modMask |= TkGetButtonMask(button);
		    }
		    patPtr->info = ButtonNumberFromState(patPtr->modMask);
#endif
		} else {
		    return FinalizeParseEventDescription(
			    interp,
			    patPtr, 0,
			    Tcl_ObjPrintf("specified keysym \"%s\" for non-key event", field),
			    "NON_KEY");
		}
	    } else if (eventFlags == 0) {
		return FinalizeParseEventDescription(
			interp,
			patPtr, 0,
			Tcl_NewStringObj("no event type or button # or keysym", -1), "UNMODIFIABLE");
	    } else if (patPtr->eventType == MotionNotify) {
		patPtr->info = ButtonNumberFromState(patPtr->modMask);
	    }

	    p = SkipFieldDelims(p);

	    if (*p != '>') {
		while (*p) {
		    ++p;
		    if (*p == '>') {
			return FinalizeParseEventDescription(
				interp,
				patPtr, 0,
				Tcl_NewStringObj("extra characters after detail in binding", -1),
				"PAST_DETAIL");
		    }
		}
		return FinalizeParseEventDescription(
			interp,
			patPtr, 0,
			Tcl_NewStringObj("missing \">\" in binding", -1), "MALFORMED");
	    }


	    ++p;
	}
    }




















































































    *eventStringPtr = p;
    *eventMaskPtr |= eventMask;


    return FinalizeParseEventDescription(interp, patPtr, count, NULL, NULL);
}

/*
 *----------------------------------------------------------------------
 *
 * GetField --
 *
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4096
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4099
4100
4101
4102
4103
4104
4105
4106
4107
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

static char *
GetField(
    char *p,			/* Pointer to part of pattern. */
    char *copy,			/* Place to copy field. */
    int size)			/* Maximum number of characters to copy. */
{
    while ((*p != '\0') && !isspace(UCHAR(*p)) && (*p != '>')
	    && (*p != '-') && (size > 1)) {
	*copy = *p;
	p++;

	copy++;
	size--;
    }
    *copy = '\0';
    return p;
}

/*
 *---------------------------------------------------------------------------






|

|
|
|

|
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|
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>
|
<







5015
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5029
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5032

5033
5034
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5036
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 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

static const char *
GetField(
    const char *p,	/* Pointer to part of pattern. */
    char *copy,		/* Place to copy field. */
    unsigned size)	/* Maximum number of characters to copy. */
{
    assert(p);

    assert(copy);

    for ( ; *p && !isspace(UCHAR(*p)) && *p != '>' && *p != '-' && size > 1u; --size) {
	*copy++ = *p++;

    }
    *copy = '\0';
    return p;
}

/*
 *---------------------------------------------------------------------------
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 *	released; it starts with a refCount of zero.
 *
 *---------------------------------------------------------------------------
 */

static Tcl_Obj *
GetPatternObj(
    PatSeq *psPtr)
{
    TkPattern *patPtr;
    int patsLeft, needMods;
    const ModInfo *modPtr;
    const EventInfo *eiPtr;
    Tcl_Obj *patternObj = Tcl_NewObj();


    /*
     * The order of the patterns in the sequence is backwards from the order
     * in which they must be output.
     */


    for (patsLeft = psPtr->numPats, patPtr = &psPtr->pats[psPtr->numPats - 1];

	    patsLeft > 0; patsLeft--, patPtr--) {
	/*
	 * Check for simple case of an ASCII character.
	 */

	if ((patPtr->eventType == KeyPress)
		&& !(psPtr->flags & PAT_NEARBY)
		&& (patPtr->needMods == 0)
		&& (patPtr->detail.keySym < 128)
		&& isprint(UCHAR(patPtr->detail.keySym))
		&& (patPtr->detail.keySym != '<')
		&& (patPtr->detail.keySym != ' ')) {
	    char c = (char) patPtr->detail.keySym;

	    Tcl_AppendToObj(patternObj, &c, 1);
	    continue;
	}

	/*
	 * Check for virtual event.
	 */

	if (patPtr->eventType == VirtualEvent) {

	    Tcl_AppendPrintfToObj(patternObj, "<<%s>>", patPtr->detail.name);
	    continue;
	}



	/*
	 * It's a more general event specification. First check for "Double",
	 * "Triple", "Quadruple", then modifiers, then event type, then keysym
	 * or button detail.
	 */

























	Tcl_AppendToObj(patternObj, "<", 1);

	if ((psPtr->flags & PAT_NEARBY) && (patsLeft > 1)
		&& (memcmp(patPtr, patPtr-1, sizeof(TkPattern)) == 0)) {
	    patsLeft--;
	    patPtr--;
	    if ((patsLeft > 1) &&
		    (memcmp(patPtr, patPtr-1, sizeof(TkPattern)) == 0)) {
		patsLeft--;
		patPtr--;
		if ((patsLeft > 1) &&
			(memcmp(patPtr, patPtr-1, sizeof(TkPattern)) == 0)) {
		    patsLeft--;
		    patPtr--;
		    Tcl_AppendToObj(patternObj, "Quadruple-", 10);
		} else {
		    Tcl_AppendToObj(patternObj, "Triple-", 7);



















		}
	    } else {
		Tcl_AppendToObj(patternObj, "Double-", 7);
	    }
	}

	for (needMods = patPtr->needMods, modPtr = modArray;
		needMods != 0; modPtr++) {
	    if (modPtr->mask & needMods) {
		needMods &= ~modPtr->mask;
		Tcl_AppendPrintfToObj(patternObj, "%s-", modPtr->name);
	    }
	}

	for (eiPtr = eventArray; eiPtr->name != NULL; eiPtr++) {
	    if (eiPtr->type == patPtr->eventType) {
		Tcl_AppendToObj(patternObj, eiPtr->name, -1);
		if (patPtr->detail.clientData != 0) {
		    Tcl_AppendToObj(patternObj, "-", 1);
		}
		break;
	    }
	}

	if (patPtr->detail.clientData != 0) {
	    if ((patPtr->eventType == KeyPress)
		    || (patPtr->eventType == KeyRelease)) {
		const char *string = TkKeysymToString(patPtr->detail.keySym);

		if (string != NULL) {
		    Tcl_AppendToObj(patternObj, string, -1);
		}
	    } else {
		Tcl_AppendPrintfToObj(patternObj, "%d", patPtr->detail.button);
	    }
	}

	Tcl_AppendToObj(patternObj, ">", 1);
    }

    return patternObj;
}

/*
 *----------------------------------------------------------------------






|

<
<
<
<

>

<
<
<
<
>

|
>
|



<
|
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<

<
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>

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>
>
|

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<
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>
>
>
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>

<
<

|
<
<
<
<
<
<
<
<
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<
|
<
<
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<
<
<
<
<
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<
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<
<
<
<
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<







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5060
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5063
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5125

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5147
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5149


5150


















5151
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 *	released; it starts with a refCount of zero.
 *
 *---------------------------------------------------------------------------
 */

static Tcl_Obj *
GetPatternObj(
    const PatSeq *psPtr)
{




    Tcl_Obj *patternObj = Tcl_NewObj();
    unsigned i;





    assert(psPtr);

    for (i = 0; i < psPtr->numPats; ++i) {
	const TkPattern *patPtr = psPtr->pats + i;

	/*
	 * Check for simple case of an ASCII character.
	 */

	if (patPtr->eventType == KeyPress
		&& patPtr->count == 1
		&& patPtr->modMask == 0
		&& patPtr->info < 128
		&& isprint(UCHAR(patPtr->info))
		&& patPtr->info != '<'
		&& patPtr->info != ' ') {
	    char c = (char) patPtr->info;

	    Tcl_AppendToObj(patternObj, &c, 1);







	} else if (patPtr->eventType == VirtualEvent) {
	    assert(patPtr->name);
	    Tcl_AppendPrintfToObj(patternObj, "<<%s>>", patPtr->name);

	} else {
	    ModMask modMask;
	    const ModInfo *modPtr;

	    /*
	     * It's a more general event specification. First check for "Double",
	     * "Triple", "Quadruple", then modifiers, then event type, then keysym
	     * or button detail.
	     */

	    Tcl_AppendToObj(patternObj, "<", 1);

	    switch (patPtr->count) {
	    case 2: Tcl_AppendToObj(patternObj, "Double-", 7); break;
	    case 3: Tcl_AppendToObj(patternObj, "Triple-", 7); break;
	    case 4: Tcl_AppendToObj(patternObj, "Quadruple-", 10); break;
	    }

	    modMask = patPtr->modMask;
#if PRINT_SHORT_MOTION_SYNTAX
	    if (patPtr->eventType == MotionNotify) {
		modMask &= ~(ModMask)ALL_BUTTONS;
	    }
#endif

	    for (modPtr = modArray; modMask; ++modPtr) {
		if (modPtr->mask & modMask) {
		    modMask &= ~modPtr->mask;
		    Tcl_AppendPrintfToObj(patternObj, "%s-", modPtr->name);
		}
	    }

	    assert(patPtr->eventType < TK_LASTEVENT);
	    assert(((size_t) eventArrayIndex[patPtr->eventType]) < SIZE_OF_ARRAY(eventArray));
	    Tcl_AppendToObj(patternObj, eventArray[eventArrayIndex[patPtr->eventType]].name, -1);




	    if (patPtr->info) {
		switch (patPtr->eventType) {
		case KeyPress:
		case KeyRelease: {
		    const char *string = TkKeysymToString(patPtr->info);
		    if (string) {



			Tcl_AppendToObj(patternObj, "-", 1);

			Tcl_AppendToObj(patternObj, string, -1);
		    }
		    break;
		}
		case ButtonPress:
		case ButtonRelease:
		    assert(patPtr->info <= Button5);
		    Tcl_AppendPrintfToObj(patternObj, "-%d", (int) patPtr->info);
		    break;
#if PRINT_SHORT_MOTION_SYNTAX
		case MotionNotify: {
		    ModMask mask = patPtr->modMask;
		    while (mask & ALL_BUTTONS) {
			unsigned button = ButtonNumberFromState(mask);
			Tcl_AppendPrintfToObj(patternObj, "-%u", button);
			mask &= ~TkGetButtonMask(button);
		    }
		    break;
		}
#endif
		}


	    }












	    Tcl_AppendToObj(patternObj, ">", 1);


	}


















    }

    return patternObj;
}

/*
 *----------------------------------------------------------------------
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259

4260
4261
4262
4263
4264
4265
4266
4267

4268
4269
4270
4271
4272
4273
4274
KeySym
TkStringToKeysym(
    const char *name)		/* Name of a keysym. */
{
#ifdef REDO_KEYSYM_LOOKUP
    Tcl_HashEntry *hPtr = Tcl_FindHashEntry(&keySymTable, name);

    if (hPtr != NULL) {
	return (KeySym) Tcl_GetHashValue(hPtr);
    }

    if (strlen(name) == 1) {
	KeySym keysym = (KeySym) (unsigned char) name[0];

	if (TkKeysymToString(keysym) != NULL) {
	    return keysym;
	}
    }
#endif /* REDO_KEYSYM_LOOKUP */

    return XStringToKeysym(name);
}

/*
 *----------------------------------------------------------------------
 *
 * TkKeysymToString --






|


>
|


|




>







5173
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5199
KeySym
TkStringToKeysym(
    const char *name)		/* Name of a keysym. */
{
#ifdef REDO_KEYSYM_LOOKUP
    Tcl_HashEntry *hPtr = Tcl_FindHashEntry(&keySymTable, name);

    if (hPtr) {
	return (KeySym) Tcl_GetHashValue(hPtr);
    }
    assert(name);
    if (strlen(name) == 1u) {
	KeySym keysym = (KeySym) (unsigned char) name[0];

	if (TkKeysymToString(keysym)) {
	    return keysym;
	}
    }
#endif /* REDO_KEYSYM_LOOKUP */
    assert(name);
    return XStringToKeysym(name);
}

/*
 *----------------------------------------------------------------------
 *
 * TkKeysymToString --
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const char *
TkKeysymToString(
    KeySym keysym)
{
#ifdef REDO_KEYSYM_LOOKUP
    Tcl_HashEntry *hPtr = Tcl_FindHashEntry(&nameTable, (char *)keysym);

    if (hPtr != NULL) {
	return Tcl_GetHashValue(hPtr);
    }
#endif /* REDO_KEYSYM_LOOKUP */

    return XKeysymToString(keysym);
}







|







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const char *
TkKeysymToString(
    KeySym keysym)
{
#ifdef REDO_KEYSYM_LOOKUP
    Tcl_HashEntry *hPtr = Tcl_FindHashEntry(&nameTable, (char *)keysym);

    if (hPtr) {
	return Tcl_GetHashValue(hPtr);
    }
#endif /* REDO_KEYSYM_LOOKUP */

    return XKeysymToString(keysym);
}

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 *----------------------------------------------------------------------
 */

XEvent *
TkpGetBindingXEvent(
    Tcl_Interp *interp)		/* Interpreter. */
{
   TkWindow *winPtr = (TkWindow *) Tk_MainWindow(interp);
   BindingTable *bindPtr = winPtr->mainPtr->bindingTable;

   return &(bindPtr->eventRing[bindPtr->curEvent]);
}

/*
 *----------------------------------------------------------------------
 *
 * TkpCancelWarp --
 *






|
|

|







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 *----------------------------------------------------------------------
 */

XEvent *
TkpGetBindingXEvent(
    Tcl_Interp *interp)		/* Interpreter. */
{
    TkWindow *winPtr = (TkWindow *) Tk_MainWindow(interp);
    BindingTable *bindPtr = winPtr->mainPtr->bindingTable;

    return &bindPtr->curEvent->xev;
}

/*
 *----------------------------------------------------------------------
 *
 * TkpCancelWarp --
 *
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 *----------------------------------------------------------------------
 */

void
TkpCancelWarp(
    TkDisplay *dispPtr)
{


    if (dispPtr->flags & TK_DISPLAY_IN_WARP) {
	Tcl_CancelIdleCall(DoWarp, dispPtr);
	dispPtr->flags &= ~TK_DISPLAY_IN_WARP;
    }
}

/*







































































 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:

 */






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>

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 *----------------------------------------------------------------------
 */

void
TkpCancelWarp(
    TkDisplay *dispPtr)
{
    assert(dispPtr);

    if (dispPtr->flags & TK_DISPLAY_IN_WARP) {
	Tcl_CancelIdleCall(DoWarp, dispPtr);
	dispPtr->flags &= ~TK_DISPLAY_IN_WARP;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkpDumpPS --
 *
 *	Dump given pattern sequence to stdout.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

#if SUPPORT_DEBUGGING
void
TkpDumpPS(
    const PatSeq *psPtr)
{
    if (!psPtr) {
	fprintf(stdout, "<null>\n");
    } else {
	Tcl_Obj* result = GetPatternObj(psPtr);
	Tcl_IncrRefCount(result);
	fprintf(stdout, "%s", Tcl_GetString(result));
	if (psPtr->object) {
	    fprintf(stdout, " (%s)", (char *) psPtr->object);
	}
	fprintf(stdout, "\n");
	Tcl_DecrRefCount(result);
    }
}
#endif

/*
 *----------------------------------------------------------------------
 *
 * TkpDumpPSList --
 *
 *	Dump given pattern sequence list to stdout.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

#if SUPPORT_DEBUGGING
void
TkpDumpPSList(
    const PSList *psList)
{
    if (!psList) {
	fprintf(stdout, "<null>\n");
    } else {
	const PSEntry *psEntry;

	fprintf(stdout, "Dump PSList ========================================\n");
	TK_DLIST_FOREACH(psEntry, psList) {
	    TkpDumpPS(psEntry->psPtr);
	}
	fprintf(stdout, "====================================================\n");
    }
}
#endif

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 105
 * End:
 * vi:set ts=8 sw=4:
 */

Changes to generic/tkCanvUtil.c.

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 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tkInt.h"
#include "tkCanvas.h"
#include <assert.h>

/*
 * Structures defined only in this file.
 */

typedef struct SmoothAssocData {
    struct SmoothAssocData *nextPtr;






<







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 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tkInt.h"
#include "tkCanvas.h"


/*
 * Structures defined only in this file.
 */

typedef struct SmoothAssocData {
    struct SmoothAssocData *nextPtr;

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/*
 * tkDList.h --
 *
 * A list is headed by pointers to first and last element. The elements
 * are doubly linked so that an arbitrary element can be removed without
 * a need to traverse the list. New elements can be added to the list
 * before or after an existing element or at the head/tail of the list.
 * A list may be traversed in the forward or backward direction.
 *
 * Copyright (c) 2018 by Gregor Cramer.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

/*
 * Note that this file will not be included in header files, it is the purpose
 * of this file to be included in source files only. Thus we are not using the
 * prefix "Tk_" here for functions, because all the functions have private scope.
 */

/*
 * -------------------------------------------------------------------------------
 * Use the double linked list in the following way:
 * -------------------------------------------------------------------------------
 * typedef struct MyListEntry { TK_DLIST_LINKS(MyListEntry); int value; } MyListEntry;
 * TK_DLIST_DEFINE(MyList, MyListEntry);
 * MyList listHdr = TK_DLIST_LIST_INITIALIZER; // or MyList_Init(&listHdr)
 * MyListEntry *p;
 * int i = 0;
 * MyList_Append(&listHdr, ckalloc(sizeof(MyListEntry)));
 * MyList_Append(&listHdr, ckalloc(sizeof(MyListEntry)));
 * TK_DLIST_FOREACH(p, &listHdr) { p->value = i++; }
 * // ...
 * MyList_RemoveHead(&listHdr);
 * MyList_RemoveHead(&listHdr);
 * MyList_Clear(MyListEntry, &listHdr); // invokes ckfree() for each element
 * -------------------------------------------------------------------------------
 * IMPORTANT NOTE: TK_DLIST_LINKS must be used at start of struct!
 */

#ifndef TK_DLIST_DEFINED
#define TK_DLIST_DEFINED

#include "tkInt.h"

/*
 * List definitions.
 */

#define TK_DLIST_LINKS(ElemType)						\
struct {									\
    struct ElemType *prev;	/* previous element */				\
    struct ElemType *next;	/* next element */				\
} _dl_

#define TK_DLIST_LIST_INITIALIZER { NULL, NULL }
#define TK_DLIST_ELEM_INITIALIZER { NULL, NULL }

/*************************************************************************/
/*
 * DList_Init: Initialize list header. This can also be used to clear the
 * list.
 *
 * See also: DList_Clear()
 */
/*************************************************************************/
/*
 * DList_ElemInit: Initialize a list element.
 */
/*************************************************************************/
/*
 * DList_InsertAfter: Insert 'elem' after 'listElem'. 'elem' must not
 * be linked, but 'listElem' must be linked.
 */
/*************************************************************************/
/*
 * DList_InsertBefore: Insert 'elem' before 'listElem'. 'elem' must not
 * be linked, but 'listElem' must be linked.
 */
/*************************************************************************/
/*
 * DList_Prepend: Insert 'elem' at start of list. This element must not
 * be linked.
 *
 * See also: DList_Append()
 */
/*************************************************************************/
/*
 * DList_Append: Append 'elem' to end of list. This element must not
 * be linked.
 *
 * See also: DList_Prepend()
 */
/*************************************************************************/
/*
 * DList_Move: Append all list items of 'src' to end of 'dst'.
 */
/*************************************************************************/
/*
 * DList_Remove: Remove 'elem' from list. This element must be linked.
 *
 * See also: DList_Free()
 */
/*************************************************************************/
/*
 * DList_Free: Remove 'elem' from list and free it. This element must
 * be linked.
 *
 * See also: DList_Remove()
 */
/*************************************************************************/
/*
 * DList_RemoveHead: Remove first element from list. The list must
 * not be empty.
 *
 * See also: DList_FreeHead()
 */
/*************************************************************************/
/*
 * DList_RemoveTail: Remove last element from list. The list must
 * not be empty.
 *
 * See also: DList_FreeTail()
 */
/*************************************************************************/
/*
 * DList_FreeHead: Remove first element from list and free it.
 * The list must not be empty.
 *
 * See also: DList_RemoveHead()
 */
/*************************************************************************/
/*
 * DList_FreeTail: Remove last element from list and free it.
 * The list must not be empty.
 *
 * See also: DList_RemoveTail()
 */
/*************************************************************************/
/*
 * DList_SwapElems: Swap positions of given elements 'lhs' and 'rhs'.
 * Both elements must be linked, and must belong to same list.
 */
/*************************************************************************/
/*
 * DList_Clear: Clear whole list and free all elements.
 *
 * See also: DList_Init
 */
/*************************************************************************/
/*
 * DList_Traverse: Iterate over all elements in list from first to last.
 * Call given function func(head, elem) for each element. The function has
 * to return the next element in list to traverse, normally this is
 * DList_Next(elem).
 *
 * See also: TK_DLIST_FOREACH, TK_DLIST_FOREACH_REVERSE
 */
/*************************************************************************/
/*
 * DList_First: Return pointer of first element in list, maybe it's NULL.
 */
/*************************************************************************/
/*
 * DList_Last: Return pointer of last element in list, maybe it's NULL.
 */
/*************************************************************************/
/*
 * DList_Next: Return pointer of next element after 'elem', maybe it's NULL.
 *
 * See also: DList_Prev()
 */
/*************************************************************************/
/*
 * DList_Prev: Return pointer of previous element before 'elem', maybe it's
 * NULL.
 *
 * See also: DList_Next()
 */
/*************************************************************************/
/*
 * DList_IsEmpty: Test whether given list is empty.
 */
/*************************************************************************/
/*
 * DList_IsLinked: Test whether given element is linked.
 */
/*************************************************************************/
/*
 * DList_IsFirst: Test whether given element is first element in list.
 * Note that 'elem' must be linked.
 *
 * See also: DList_IsLast(), DList_IsLinked()
 */
/*************************************************************************/
/*
 * DList_IsLast: Test whether given element is last element in list.
 * Note that 'elem' must be linked.
 *
 * See also: DList_IsFirst(), DList_IsLinked()
 */
/*************************************************************************/
/*
 * DList_Size: Count number of elements in given list.
 */
/*************************************************************************/
/*
 * TK_DLIST_FOREACH: Iterate over all elements in list from first to last.
 * 'var' is the name of the variable which points to current element.
 *
 * See also: TK_DLIST_FOREACH_REVERSE, DList_Traverse()
 */
/*************************************************************************/
/*
 * TK_DLIST_FOREACH_REVERSE: Iterate over all elements in list from last
 * to first (backwards). 'var' is the name of the variable which points to
 * current element.
 */
/*************************************************************************/

#if defined(__GNUC__) || defined(__clang__)
# define __TK_DLIST_UNUSED __attribute__((unused))
#else
# define __TK_DLIST_UNUSED
#endif

#define TK_DLIST_DEFINE(LT, ElemType) /* LT = type of head/list */		\
/* ------------------------------------------------------------------------- */	\
typedef struct LT {								\
    struct ElemType *first;	/* first element */				\
    struct ElemType *last;	/* last element */				\
} LT;										\
										\
typedef struct ElemType *(LT##_Func)(LT *head, struct ElemType *elem);		\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Init(LT *head)								\
{										\
    assert(head);								\
    head->first = NULL;								\
    head->last = NULL;								\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_ElemInit(struct ElemType *elem)						\
{										\
    assert(elem);								\
    elem->_dl_.next = NULL;							\
    elem->_dl_.prev = NULL;							\
}										\
										\
__TK_DLIST_UNUSED								\
static int									\
LT##_IsEmpty(LT *head)								\
{										\
    assert(head);								\
    return head->first == NULL;							\
}										\
										\
__TK_DLIST_UNUSED								\
static int									\
LT##_IsLinked(struct ElemType *elem)						\
{										\
    assert(elem);								\
    return elem->_dl_.next && elem->_dl_.prev;					\
}										\
										\
__TK_DLIST_UNUSED								\
static int									\
LT##_IsFirst(struct ElemType *elem)						\
{										\
    assert(LT##_IsLinked(elem));						\
    return elem->_dl_.prev->_dl_.prev == elem;					\
}										\
										\
__TK_DLIST_UNUSED								\
static int									\
LT##_IsLast(struct ElemType *elem)						\
{										\
    assert(LT##_IsLinked(elem));						\
    return elem->_dl_.next->_dl_.next == elem;					\
}										\
										\
__TK_DLIST_UNUSED								\
static struct ElemType *							\
LT##_First(LT *head)								\
{										\
    assert(head);								\
    return head->first;								\
}										\
										\
__TK_DLIST_UNUSED								\
static struct ElemType *							\
LT##_Last(LT *head)								\
{										\
    assert(head);								\
    return head->last;								\
}										\
										\
__TK_DLIST_UNUSED								\
static struct ElemType *							\
LT##_Next(struct ElemType *elem)						\
{										\
    assert(elem);								\
    return LT##_IsLast(elem) ? NULL : elem->_dl_.next;				\
}										\
										\
__TK_DLIST_UNUSED								\
static struct ElemType *							\
LT##_Prev(struct ElemType *elem)						\
{										\
    assert(elem);								\
    return LT##_IsFirst(elem) ? NULL : elem->_dl_.prev;				\
}										\
										\
__TK_DLIST_UNUSED								\
static unsigned									\
LT##_Size(const LT *head)							\
{										\
    const struct ElemType *elem;						\
    unsigned size = 0;								\
    assert(head);								\
    if ((elem = head->first)) {							\
	for ( ; elem != (void *) head; elem = elem->_dl_.next) {		\
	    ++size;								\
	}									\
    }										\
    return size;								\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_InsertAfter(struct ElemType *listElem, struct ElemType *elem)		\
{										\
    assert(listElem);								\
    assert(elem);								\
    elem->_dl_.next = listElem->_dl_.next;					\
    elem->_dl_.prev = listElem;							\
    listElem->_dl_.next->_dl_.prev = elem;					\
    listElem->_dl_.next = elem;							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_InsertBefore(struct ElemType *listElem, struct ElemType *elem)		\
{										\
    assert(listElem);								\
    assert(elem);								\
    elem->_dl_.next = listElem;							\
    elem->_dl_.prev = listElem->_dl_.prev;;					\
    listElem->_dl_.prev->_dl_.next = elem;					\
    listElem->_dl_.prev = elem;							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Prepend(LT *head, struct ElemType *elem)					\
{										\
    assert(head);								\
    assert(elem);								\
    elem->_dl_.prev = (void *) head;						\
    if (!head->first) {								\
	elem->_dl_.next = (void *) head;					\
	head->last = elem;							\
    } else {									\
	elem->_dl_.next = head->first;						\
	head->first->_dl_.prev = elem;						\
    }										\
    head->first = elem;								\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Append(LT *head, struct ElemType *elem)					\
{										\
    assert(head);								\
    assert(elem);								\
    elem->_dl_.next = (void *) head;						\
    if (!head->first) {								\
	elem->_dl_.prev = (void *) head;					\
	head->first = elem;							\
    } else {									\
	elem->_dl_.prev = head->last;						\
	head->last->_dl_.next = elem;						\
    }										\
    head->last = elem;								\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Move(LT *dst, LT *src)							\
{										\
    assert(dst);								\
    assert(src);								\
    if (src->first) {								\
	if (dst->first) {							\
	    dst->last->_dl_.next = src->first;					\
	    src->first->_dl_.prev = dst->last;					\
	    dst->last = src->last;						\
	} else {								\
	    *dst = *src;							\
	    dst->first->_dl_.prev = (void *) dst;				\
	}									\
	dst->last->_dl_.next = (void *) dst;					\
	LT##_Init(src);								\
    }										\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Remove(struct ElemType *elem)						\
{										\
    int isFirst, isLast;							\
    assert(LT##_IsLinked(elem));						\
    isFirst = LT##_IsFirst(elem);						\
    isLast = LT##_IsLast(elem);							\
    if (isFirst && isLast) {							\
	((LT *) elem->_dl_.prev)->first = NULL;					\
	((LT *) elem->_dl_.next)->last = NULL;					\
    } else {									\
	if (isFirst) {								\
	    ((LT *) elem->_dl_.prev)->first = elem->_dl_.next;			\
	} else {								\
	    elem->_dl_.prev->_dl_.next = elem->_dl_.next;			\
	}									\
	if (isLast) {								\
	    ((LT *) elem->_dl_.next)->last = elem->_dl_.prev;			\
	} else {								\
	    elem->_dl_.next->_dl_.prev = elem->_dl_.prev;			\
	}									\
    }										\
    LT##_ElemInit(elem);							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Free(struct ElemType *elem)						\
{										\
    LT##_Remove(elem);								\
    ckfree((void *) elem);							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_RemoveHead(LT *head)							\
{										\
    assert(!LT##_IsEmpty(head));						\
    LT##_Remove(head->first);							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_RemoveTail(LT *head)							\
{										\
    assert(!LT##_IsEmpty(head));						\
    LT##_Remove(head->last);							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_FreeHead(LT *head)								\
{										\
    assert(!LT##_IsEmpty(head));						\
    LT##_Free(head->first);							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_FreeTail(LT *head)								\
{										\
    assert(!LT##_IsEmpty(head));						\
    LT##_Free(head->last);							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_SwapElems(struct ElemType *lhs, struct ElemType *rhs)			\
{										\
    assert(lhs);								\
    assert(rhs);								\
    if (lhs != rhs) {								\
	struct ElemType tmp;							\
	if (LT##_IsFirst(lhs))  {						\
	    ((LT *) lhs->_dl_.prev)->first = rhs;				\
	} else if (LT##_IsFirst(rhs)) {						\
	    ((LT *) rhs->_dl_.prev)->first = lhs;				\
	}									\
	if (LT##_IsLast(lhs))  {						\
	    ((LT *) lhs->_dl_.next)->last = rhs;				\
	} else if (LT##_IsLast(rhs)) {						\
	    ((LT *) rhs->_dl_.next)->last = lhs;				\
	}									\
	tmp._dl_ = lhs->_dl_;							\
	lhs->_dl_ = rhs->_dl_;							\
	rhs->_dl_ = tmp._dl_;							\
    }										\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Clear(LT *head)								\
{										\
    struct ElemType *p;								\
    struct ElemType *next;							\
    assert(head);								\
    for (p = head->first; p; p = next) {					\
	next = LT##_Next(p);							\
	ckfree((void *) p);							\
    }										\
    LT##_Init(head);								\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Traverse(LT *head, LT##_Func func)						\
{										\
    struct ElemType *next;							\
    struct ElemType *p;								\
    assert(head);								\
    for (p = head->first; p; p = next) {					\
	next = func(head, p);							\
    }										\
}										\
/* ------------------------------------------------------------------------- */

#define TK_DLIST_FOREACH(var, head)						\
    assert(head);								\
    for (var = head->first ? head->first : (void *) head; var != (void *) head; var = var->_dl_.next)

#define TK_DLIST_FOREACH_REVERSE(var, head)					\
    assert(head);								\
    for (var = head->last ? head->last : (void *) head; var != (void *) head; var = var->_dl_.prev)

#endif /* TK_DLIST_DEFINED */

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 105
 * End:
 * vi:set ts=8 sw=4:
 */

Changes to generic/tkEvent.c.

203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
			    XEvent *eventPtr);
static int		InvokeMouseHandlers(TkWindow *winPtr,
			    unsigned long mask, XEvent *eventPtr);
static Window		ParentXId(Display *display, Window w);
static int		RefreshKeyboardMappingIfNeeded(XEvent *eventPtr);
static int		TkXErrorHandler(ClientData clientData,
			    XErrorEvent *errEventPtr);
static void		UpdateButtonEventState(XEvent *eventPtr);
static int		WindowEventProc(Tcl_Event *evPtr, int flags);
#ifdef TK_USE_INPUT_METHODS
static void		CreateXIC(TkWindow *winPtr);
#endif /* TK_USE_INPUT_METHODS */

/*
 *----------------------------------------------------------------------






<







203
204
205
206
207
208
209

210
211
212
213
214
215
216
			    XEvent *eventPtr);
static int		InvokeMouseHandlers(TkWindow *winPtr,
			    unsigned long mask, XEvent *eventPtr);
static Window		ParentXId(Display *display, Window w);
static int		RefreshKeyboardMappingIfNeeded(XEvent *eventPtr);
static int		TkXErrorHandler(ClientData clientData,
			    XErrorEvent *errEventPtr);

static int		WindowEventProc(Tcl_Event *evPtr, int flags);
#ifdef TK_USE_INPUT_METHODS
static void		CreateXIC(TkWindow *winPtr);
#endif /* TK_USE_INPUT_METHODS */

/*
 *----------------------------------------------------------------------
542
543
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545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
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566
567
568
569
570
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572
573
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581
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583
584
585
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590
591
592
593
594
595
596
597
598
599
600
601
602
603
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605
606
607
608
609
610
611
612
613
614
615
616
617
618
unsigned long
TkGetButtonMask(
    unsigned int button)
{
    return (button > Button5) ? 0 : buttonMasks[button];
}

/*
 *----------------------------------------------------------------------
 *
 * UpdateButtonEventState --
 *
 *	Update the button event state in our TkDisplay using the XEvent
 *	passed. We also may modify the the XEvent passed to fit some aspects
 *	of our TkDisplay.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The TkDisplay's private button state may be modified. The eventPtr's
 *	state may be updated to reflect masks stored in our TkDisplay that the
 *	event doesn't contain. The eventPtr may also be modified to not
 *	contain a button state for the window in which it was not pressed in.
 *
 *----------------------------------------------------------------------
 */

static void
UpdateButtonEventState(
    XEvent *eventPtr)
{
    TkDisplay *dispPtr;

    switch (eventPtr->type) {
    case ButtonPress:
	dispPtr = TkGetDisplay(eventPtr->xbutton.display);
	dispPtr->mouseButtonWindow = eventPtr->xbutton.window;
	eventPtr->xbutton.state |= dispPtr->mouseButtonState;

	dispPtr->mouseButtonState |= TkGetButtonMask(eventPtr->xbutton.button);
	break;

    case ButtonRelease:
	dispPtr = TkGetDisplay(eventPtr->xbutton.display);
	dispPtr->mouseButtonWindow = None;
	dispPtr->mouseButtonState &= ~TkGetButtonMask(eventPtr->xbutton.button);
	eventPtr->xbutton.state |= dispPtr->mouseButtonState;
	break;

    case MotionNotify:
	dispPtr = TkGetDisplay(eventPtr->xmotion.display);
	if (dispPtr->mouseButtonState & ALL_BUTTONS) {
	    if (eventPtr->xbutton.window != dispPtr->mouseButtonWindow) {
		/*
		 * This motion event should not be interpreted as a button
		 * press + motion event since this is not the same window the
		 * button was pressed down in.
		 */

		dispPtr->mouseButtonState &= ~ALL_BUTTONS;
		dispPtr->mouseButtonWindow = None;
	    } else {
		eventPtr->xmotion.state |= dispPtr->mouseButtonState;
	    }
	}
	break;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * InvokeClientMessageHandlers --
 *
 *	Iterate the list of handlers and invoke the function pointer for each.






<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
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<
<
<
<
<
<
<
<
<
<
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<
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<
<
<
<
<
<







541
542
543
544
545
546
547































































548
549
550
551
552
553
554
unsigned long
TkGetButtonMask(
    unsigned int button)
{
    return (button > Button5) ? 0 : buttonMasks[button];
}
































































/*
 *----------------------------------------------------------------------
 *
 * InvokeClientMessageHandlers --
 *
 *	Iterate the list of handlers and invoke the function pointer for each.
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
    TkWindow *winPtr;
    unsigned long mask;
    InProgress ip;
    Tcl_Interp *interp = NULL;
    ThreadSpecificData *tsdPtr =
	    Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));

    UpdateButtonEventState(eventPtr);

    /*
     * If the generic handler processed this event we are done and can return.
     */

    if (InvokeGenericHandlers(tsdPtr, eventPtr)) {
	goto releaseEventResources;
    }






<
<







1141
1142
1143
1144
1145
1146
1147


1148
1149
1150
1151
1152
1153
1154
    TkWindow *winPtr;
    unsigned long mask;
    InProgress ip;
    Tcl_Interp *interp = NULL;
    ThreadSpecificData *tsdPtr =
	    Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));



    /*
     * If the generic handler processed this event we are done and can return.
     */

    if (InvokeGenericHandlers(tsdPtr, eventPtr)) {
	goto releaseEventResources;
    }

Changes to generic/tkFocus.c.

275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
    int retValue, delta;

    /*
     * If this was a generated event, just turn off the generated flag and
     * pass the event through to Tk bindings.
     */

    if (eventPtr->xfocus.send_event == GENERATED_FOCUS_EVENT_MAGIC) {
	eventPtr->xfocus.send_event = 0;
	return 1;
    }

    /*
     * Check for special events generated by embedded applications to request
     * the input focus. If this is one of those events, make the change in
     * focus and return without any additional processing of the event (note:






|
|







275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
    int retValue, delta;

    /*
     * If this was a generated event, just turn off the generated flag and
     * pass the event through to Tk bindings.
     */

    if ((eventPtr->xfocus.send_event & GENERATED_FOCUS_EVENT_MAGIC) == GENERATED_FOCUS_EVENT_MAGIC) {
	eventPtr->xfocus.send_event &= ~GENERATED_FOCUS_EVENT_MAGIC;
	return 1;
    }

    /*
     * Check for special events generated by embedded applications to request
     * the input focus. If this is one of those events, make the change in
     * focus and return without any additional processing of the event (note:

Changes to generic/tkImgPNG.c.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
/*
 * tkImgPNG.c --
 *
 *	A Tk photo image file handler for PNG files.
 *
 * Copyright (c) 2006-2008 Muonics, Inc.
 * Copyright (c) 2008 Donal K. Fellows
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "assert.h"
#include "tkInt.h"

#define	PNG_INT32(a,b,c,d)	\
	(((long)(a) << 24) | ((long)(b) << 16) | ((long)(c) << 8) | (long)(d))
#define	PNG_BLOCK_SZ	1024		/* Process up to 1k at a time. */
#define PNG_MIN(a, b) (((a) < (b)) ? (a) : (b))












<







1
2
3
4
5
6
7
8
9
10
11
12

13
14
15
16
17
18
19
/*
 * tkImgPNG.c --
 *
 *	A Tk photo image file handler for PNG files.
 *
 * Copyright (c) 2006-2008 Muonics, Inc.
 * Copyright (c) 2008 Donal K. Fellows
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */


#include "tkInt.h"

#define	PNG_INT32(a,b,c,d)	\
	(((long)(a) << 24) | ((long)(b) << 16) | ((long)(c) << 8) | (long)(d))
#define	PNG_BLOCK_SZ	1024		/* Process up to 1k at a time. */
#define PNG_MIN(a, b) (((a) < (b)) ? (a) : (b))

Changes to generic/tkInt.h.

488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
				 * applications using it. */

    /*
     * The following field were all added for Tk8.3
     */

    int mouseButtonState;	/* Current mouse button state for this
				 * display. */
    Window mouseButtonWindow;	/* Window the button state was set in, added
				 * in Tk 8.4. */
    Tk_Window warpWindow;
    Tk_Window warpMainwin;	/* For finding the root window for warping
				 * purposes. */
    int warpX;
    int warpY;






|







488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
				 * applications using it. */

    /*
     * The following field were all added for Tk8.3
     */

    int mouseButtonState;	/* Current mouse button state for this
				 * display. NOT USED as of 8.6.10 */
    Window mouseButtonWindow;	/* Window the button state was set in, added
				 * in Tk 8.4. */
    Tk_Window warpWindow;
    Tk_Window warpMainwin;	/* For finding the root window for warping
				 * purposes. */
    int warpX;
    int warpY;
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
#if defined(PURIFY) && defined(__clang__)
#if __has_feature(attribute_analyzer_noreturn) && \
	!defined(Tcl_Panic) && defined(Tcl_Panic_TCL_DECLARED)
void Tcl_Panic(const char *, ...) __attribute__((analyzer_noreturn));
#endif
#if !defined(CLANG_ASSERT)
#include <assert.h>
#define CLANG_ASSERT(x) assert(x)
#endif
#elif !defined(CLANG_ASSERT)
#define CLANG_ASSERT(x)
#endif /* PURIFY && __clang__ */

/*






<







991
992
993
994
995
996
997

998
999
1000
1001
1002
1003
1004
#if defined(PURIFY) && defined(__clang__)
#if __has_feature(attribute_analyzer_noreturn) && \
	!defined(Tcl_Panic) && defined(Tcl_Panic_TCL_DECLARED)
void Tcl_Panic(const char *, ...) __attribute__((analyzer_noreturn));
#endif
#if !defined(CLANG_ASSERT)

#define CLANG_ASSERT(x) assert(x)
#endif
#elif !defined(CLANG_ASSERT)
#define CLANG_ASSERT(x)
#endif /* PURIFY && __clang__ */

/*

Changes to macosx/tkMacOSXPort.h.

19
20
21
22
23
24
25

26
27
28
29
30
31
32
#include <stdio.h>
#include <ctype.h>
#include <fcntl.h>
#include <limits.h>
#include <math.h>
#include <pwd.h>
#include <stdlib.h>

#include <string.h>
#include <sys/types.h>
#include <sys/file.h>
#ifdef HAVE_SYS_SELECT_H
#   include <sys/select.h>
#endif
#include <sys/stat.h>






>







19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
#include <stdio.h>
#include <ctype.h>
#include <fcntl.h>
#include <limits.h>
#include <math.h>
#include <pwd.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <sys/types.h>
#include <sys/file.h>
#ifdef HAVE_SYS_SELECT_H
#   include <sys/select.h>
#endif
#include <sys/stat.h>

Changes to tests/bind.test.

30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
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    bind Test <Enter> {}
    bind Toplevel <Enter> {}
    bind xyz <Enter> {}
    bind {a b} <Enter> {}
    bind .t <Enter> {}
}

# This function fills the pattern matcher's ring buffer with events of
# the specified type.  This can be used when testing with generated
# events to make sure that there are no stray events in the ring
# buffer which might cause the pattern matcher to find unintended
# matches.  The size of the ring buffer is EVENT_BUFFER_SIZE, which is
# currently set to 30 (or 45 on macOS).  If this changes, the code
# below will need to change.
proc clearRingBuffer {{event}} {
    for {set i 0} {$i < 45} {incr i} {
	event generate . $event
    }
}

# move the mouse pointer away of the testing area
# otherwise some spurious events may pollute the tests
toplevel .top
wm geometry .top 50x50-50-50
update
event generate .top <Button-1> -warp 1
update






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    bind Test <Enter> {}
    bind Toplevel <Enter> {}
    bind xyz <Enter> {}
    bind {a b} <Enter> {}
    bind .t <Enter> {}
}














# move the mouse pointer away of the testing area
# otherwise some spurious events may pollute the tests
toplevel .top
wm geometry .top 50x50-50-50
update
event generate .top <Button-1> -warp 1
update
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    destroy .t.f
} -result {0}
test bind-15.22 {MatchPatterns procedure, time wrap-around} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    clearRingBuffer <Key>
} -body {
    bind .t.f <Double-1> {set x 1}
    set x 0
    event generate .t.f <Button-1> -time -100
    event generate .t.f <Button-1> -time 200
    event generate .t.f <ButtonRelease-1>
    return $x
} -cleanup {
    destroy .t.f
} -result {1}
test bind-15.23 {MatchPatterns procedure, time wrap-around} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    clearRingBuffer <Key>
} -body {
    bind .t.f <Double-1> {set x 1}
    set x 0
    event generate .t.f <Button-1> -time -100
    event generate .t.f <Button-1> -time 500
    event generate .t.f <ButtonRelease-1>
    return $x
} -cleanup {
    destroy .t.f
} -result {0}
test bind-15.24 {MatchPatterns procedure, virtual event} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    set x {}
    clearRingBuffer <Key>
} -body {
    event add <<Paste>> <Button-1>
    bind .t.f <<Paste>> {lappend x paste}
    event generate .t.f <Button-1>
    event generate .t.f <ButtonRelease-1>
    set x
} -cleanup {
    destroy .t.f
    event delete <<Paste>> <Button-1>
} -result {paste}
test bind-15.25 {MatchPatterns procedure, reject a  virtual event} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    set x {}
    clearRingBuffer <Key>
} -body {
    event add <<Paste>> <Shift-Button-1>
    bind .t.f <<Paste>> {lappend x paste}
    event generate .t.f <Button-1>
    event generate .t.f <ButtonRelease-1>
    set x
} -cleanup {
    destroy .t.f
    event delete <<Paste>> <Shift-Button-1>
} -result {}
test bind-15.26 {MatchPatterns procedure, reject a virtual event} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    set x {}
    clearRingBuffer <Key>
} -body {
    event add <<V1>> <Button>
    event add <<V2>> <Button-1>
    event add <<V3>> <Shift-Button-1>
    bind .t.f <<V2>> "lappend x V2%#"
    event generate .t.f <Button> -serial 101
    event generate .t.f <Button-1> -serial 102






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<







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    destroy .t.f
} -result {0}
test bind-15.22 {MatchPatterns procedure, time wrap-around} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update

} -body {
    bind .t.f <Double-1> {set x 1}
    set x 0
    event generate .t.f <Button-1> -time -100
    event generate .t.f <Button-1> -time 200
    event generate .t.f <ButtonRelease-1>
    return $x
} -cleanup {
    destroy .t.f
} -result {1}
test bind-15.23 {MatchPatterns procedure, time wrap-around} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update

} -body {
    bind .t.f <Double-1> {set x 1}
    set x 0
    event generate .t.f <Button-1> -time -100
    event generate .t.f <Button-1> -time 500
    event generate .t.f <ButtonRelease-1>
    return $x
} -cleanup {
    destroy .t.f
} -result {0}
test bind-15.24 {MatchPatterns procedure, virtual event} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    set x {}

} -body {
    event add <<Paste>> <Button-1>
    bind .t.f <<Paste>> {lappend x paste}
    event generate .t.f <Button-1>
    event generate .t.f <ButtonRelease-1>
    set x
} -cleanup {
    destroy .t.f
    event delete <<Paste>> <Button-1>
} -result {paste}
test bind-15.25 {MatchPatterns procedure, reject a  virtual event} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    set x {}

} -body {
    event add <<Paste>> <Shift-Button-1>
    bind .t.f <<Paste>> {lappend x paste}
    event generate .t.f <Button-1>
    event generate .t.f <ButtonRelease-1>
    set x
} -cleanup {
    destroy .t.f
    event delete <<Paste>> <Shift-Button-1>
} -result {}
test bind-15.26 {MatchPatterns procedure, reject a virtual event} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    set x {}

} -body {
    event add <<V1>> <Button>
    event add <<V2>> <Button-1>
    event add <<V3>> <Shift-Button-1>
    bind .t.f <<V2>> "lappend x V2%#"
    event generate .t.f <Button> -serial 101
    event generate .t.f <Button-1> -serial 102
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    event delete <<V3>> <Shift-Button-1>
} -result {V2102 V2103 V2105 Shift-Button-1}
test bind-15.27 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    clearRingBuffer <Button>
} -body {
    bind .t.f <KeyPress> {set x 0}
    bind .t.f 1 {set x 1}
    set x none
    event generate .t.f <Key-1>
    return $x
} -cleanup {
    destroy .t.f
} -result {1}
test bind-15.28 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    clearRingBuffer <Button>
} -body {
    bind .t.f <KeyPress> {set x 0}
    bind .t.f 1 {set x 1}
    set x none
    event generate .t.f <Key-2>
    return $x
} -cleanup {
    destroy .t.f
} -result {0}
test bind-15.29 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    clearRingBuffer <Button>
} -body {
    bind .t.f <KeyPress> {lappend x 0}
    bind .t.f 1 {lappend x 1}
    bind .t.f 21 {lappend x 2}
    set x none
    event generate .t.f <Key-2>
    event generate .t.f <KeyRelease-2>
    event generate .t.f <Key-1>
    set x
} -cleanup {
    destroy .t.f
} -result {none 0 2}
test bind-15.30 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    clearRingBuffer <Key>
} -body {
    bind .t.f <ButtonPress> {set x 0}
    bind .t.f <1> {set x 1}
    set x none
    event generate .t.f <Button-1>
    event generate .t.f <ButtonRelease-1>
    return $x
} -cleanup {
    destroy .t.f
} -result {1}
test bind-15.31 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    set x {}
    clearRingBuffer <Button>
} -body {
    bind .t.f <M1-Key> {set x 0}
    bind .t.f <M2-Key> {set x 1}
    event generate .t.f <Key-a> -state 0x18
    return $x
} -cleanup {
    destroy .t.f
} -result {1}
test bind-15.32 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    clearRingBuffer <Button>
} -body {
    bind .t.f <M2-Key> {set x 0}
    bind .t.f <M1-Key> {set x 1}
    set x none
    event generate .t.f <Key-a> -state 0x18
    return $x
} -cleanup {
    destroy .t.f
} -result {1}
test bind-15.33 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    set x {}
    clearRingBuffer <Key>
} -body {
    bind .t.f <1> {lappend x single}
    bind Test <1> {lappend x single(Test)}
    bind Test <Double-1> {lappend x double(Test)}
    event generate .t.f <Button-1>
    event generate .t.f <Button-1>
    event generate .t.f <Button-1>






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<















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    event delete <<V3>> <Shift-Button-1>
} -result {V2102 V2103 V2105 Shift-Button-1}
test bind-15.27 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update

} -body {
    bind .t.f <KeyPress> {set x 0}
    bind .t.f 1 {set x 1}
    set x none
    event generate .t.f <Key-1>
    return $x
} -cleanup {
    destroy .t.f
} -result {1}
test bind-15.28 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update

} -body {
    bind .t.f <KeyPress> {set x 0}
    bind .t.f 1 {set x 1}
    set x none
    event generate .t.f <Key-2>
    return $x
} -cleanup {
    destroy .t.f
} -result {0}
test bind-15.29 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update

} -body {
    bind .t.f <KeyPress> {lappend x 0}
    bind .t.f 1 {lappend x 1}
    bind .t.f 21 {lappend x 2}
    set x none
    event generate .t.f <Key-2>
    event generate .t.f <KeyRelease-2>
    event generate .t.f <Key-1>
    set x
} -cleanup {
    destroy .t.f
} -result {none 0 2}
test bind-15.30 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update

} -body {
    bind .t.f <ButtonPress> {set x 0}
    bind .t.f <1> {set x 1}
    set x none
    event generate .t.f <Button-1>
    event generate .t.f <ButtonRelease-1>
    return $x
} -cleanup {
    destroy .t.f
} -result {1}
test bind-15.31 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    set x {}

} -body {
    bind .t.f <M1-Key> {set x 0}
    bind .t.f <M2-Key> {set x 1}
    event generate .t.f <Key-a> -state 0x18
    return $x
} -cleanup {
    destroy .t.f
} -result {1}
test bind-15.32 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update

} -body {
    bind .t.f <M2-Key> {set x 0}
    bind .t.f <M1-Key> {set x 1}
    set x none
    event generate .t.f <Key-a> -state 0x18
    return $x
} -cleanup {
    destroy .t.f
} -result {1}
test bind-15.33 {MatchPatterns procedure, conflict resolution} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    set x {}

} -body {
    bind .t.f <1> {lappend x single}
    bind Test <1> {lappend x single(Test)}
    bind Test <Double-1> {lappend x double(Test)}
    event generate .t.f <Button-1>
    event generate .t.f <Button-1>
    event generate .t.f <Button-1>
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    set savedBind(All) [bind all <Key>]
    set savedBind(Entry) [bind Entry <Key>]
    entry .t.e
    pack .t.e
    focus -force .t.e
    foreach p [event info] {event delete $p}
    update
    clearRingBuffer <Button>
} -body {
    bind all <Key> {set z "%M"}
    bind Entry <Key> {set y "%M"}
    bind .t.e <Key> {set x "%M"}
    set x none; set y none; set z none
    event gen .t.e <Key-a>
    list $x $y $z






<







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    set savedBind(All) [bind all <Key>]
    set savedBind(Entry) [bind Entry <Key>]
    entry .t.e
    pack .t.e
    focus -force .t.e
    foreach p [event info] {event delete $p}
    update

} -body {
    bind all <Key> {set z "%M"}
    bind Entry <Key> {set y "%M"}
    bind .t.e <Key> {set x "%M"}
    set x none; set y none; set z none
    event gen .t.e <Key-a>
    list $x $y $z
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} -returnCodes error -result {wrong # args: should be "event delete virtual ?sequence ...?"}
test bind-17.9 {event command: delete many} -body {
    event delete <<Paste>>
    event add <<Paste>> <3> <1> <2> t
    event delete <<Paste>> <1> <2>
    lsort [event info <<Paste>>]
} -cleanup {

    event delete <<Paste>> <3> t
} -result {<Button-3> t}
test bind-17.10 {event command: delete all} -body {
    event add <<Paste>> a b
    event delete <<Paste>>
    event info <<Paste>>
} -cleanup {






>







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} -returnCodes error -result {wrong # args: should be "event delete virtual ?sequence ...?"}
test bind-17.9 {event command: delete many} -body {
    event delete <<Paste>>
    event add <<Paste>> <3> <1> <2> t
    event delete <<Paste>> <1> <2>
    lsort [event info <<Paste>>]
} -cleanup {
    event delete <<Paste>>
    event delete <<Paste>> <3> t
} -result {<Button-3> t}
test bind-17.10 {event command: delete all} -body {
    event add <<Paste>> a b
    event delete <<Paste>>
    event info <<Paste>>
} -cleanup {
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    event delete <<def>>
    event delete <<abc>>
} -result {{xyz abc def abc def} {} <Control-Button-2> <Shift-Button-2>}
test bind-19.15 {DeleteVirtualEvent procedure: owned by many, first} -setup {
    pack [frame .t.f -class Test -width 150 -height 100]
    pack [frame .t.g -class Test -width 150 -height 100]
    pack [frame .t.h -class Test -width 150 -height 100]

    focus -force .t.f
    update
    set x {}
    event delete <<def>>
    event delete <<xyz>>
    event delete <<abc>>
} -body {






>







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    event delete <<def>>
    event delete <<abc>>
} -result {{xyz abc def abc def} {} <Control-Button-2> <Shift-Button-2>}
test bind-19.15 {DeleteVirtualEvent procedure: owned by many, first} -setup {
    pack [frame .t.f -class Test -width 150 -height 100]
    pack [frame .t.g -class Test -width 150 -height 100]
    pack [frame .t.h -class Test -width 150 -height 100]
    after 250 ;# we need a bit time to ensure that .t.h is mapped (<TODO>: fix this race condition)
    focus -force .t.f
    update
    set x {}
    event delete <<def>>
    event delete <<xyz>>
    event delete <<abc>>
} -body {
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    event delete <<def>>
    event delete <<abc>>
} -result {{xyz abc def abc def} {} <Button-2> <Button-2>}
test bind-19.16 {DeleteVirtualEvent procedure: owned by many, middle} -setup {
    pack [frame .t.f -class Test -width 150 -height 100]
    pack [frame .t.g -class Test -width 150 -height 100]
    pack [frame .t.h -class Test -width 150 -height 100]

    focus -force .t.f
    update
    set x {}
    event delete <<def>>
    event delete <<xyz>>
    event delete <<abc>>
} -body {






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    event delete <<def>>
    event delete <<abc>>
} -result {{xyz abc def abc def} {} <Button-2> <Button-2>}
test bind-19.16 {DeleteVirtualEvent procedure: owned by many, middle} -setup {
    pack [frame .t.f -class Test -width 150 -height 100]
    pack [frame .t.g -class Test -width 150 -height 100]
    pack [frame .t.h -class Test -width 150 -height 100]
    after 250 ;# we need a bit time to ensure that .t.h is mapped (<TODO>: fix this race condition)
    focus -force .t.f
    update
    set x {}
    event delete <<def>>
    event delete <<xyz>>
    event delete <<abc>>
} -body {
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    event delete <<def>>
    event delete <<xyz>>
} -result {{xyz abc def xyz def} <Button-2> {} <Button-2>}
test bind-19.17 {DeleteVirtualEvent procedure: owned by many, last} -setup {
    pack [frame .t.f -class Test -width 150 -height 100]
    pack [frame .t.g -class Test -width 150 -height 100]
    pack [frame .t.h -class Test -width 150 -height 100]

    focus -force .t.f
    update
    set x {}
    event delete <<def>>
    event delete <<xyz>>
    event delete <<abc>>
} -body {






>







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    event delete <<def>>
    event delete <<xyz>>
} -result {{xyz abc def xyz def} <Button-2> {} <Button-2>}
test bind-19.17 {DeleteVirtualEvent procedure: owned by many, last} -setup {
    pack [frame .t.f -class Test -width 150 -height 100]
    pack [frame .t.g -class Test -width 150 -height 100]
    pack [frame .t.h -class Test -width 150 -height 100]
    after 250 ;# we need a bit time to ensure that .t.h is mapped (<TODO>: fix this race condition)
    focus -force .t.f
    update
    set x {}
    event delete <<def>>
    event delete <<xyz>>
    event delete <<abc>>
} -body {
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    destroy .t.f
} -result {260 1}
test bind-22.5 {HandleEventGenerate} -body {
    event generate . <xyz>
} -returnCodes error -result {bad event type or keysym "xyz"}
test bind-22.6 {HandleEventGenerate} -body {
    event generate . <Double-Button-1>
} -returnCodes error -result {Double or Triple modifier not allowed}
test bind-22.7 {HandleEventGenerate} -body {
    event generate . xyz
} -returnCodes error -result {only one event specification allowed}
test bind-22.8 {HandleEventGenerate} -body {
    event generate . <Button> -button
} -returnCodes error -result {value for "-button" missing}
test bind-22.9 {HandleEventGenerate} -setup {






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    destroy .t.f
} -result {260 1}
test bind-22.5 {HandleEventGenerate} -body {
    event generate . <xyz>
} -returnCodes error -result {bad event type or keysym "xyz"}
test bind-22.6 {HandleEventGenerate} -body {
    event generate . <Double-Button-1>
} -returnCodes error -result {Double, Triple, or Quadruple modifier not allowed}
test bind-22.7 {HandleEventGenerate} -body {
    event generate . xyz
} -returnCodes error -result {only one event specification allowed}
test bind-22.8 {HandleEventGenerate} -body {
    event generate . <Button> -button
} -returnCodes error -result {value for "-button" missing}
test bind-22.9 {HandleEventGenerate} -setup {
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    set x {}
} -body {
    bind .t.f <Key> "lappend x %E"
    event generate .t.f <Key> -sendevent 43
    return $x
} -cleanup {
    destroy .t.f
} -result {43}

test bind-22.93 {HandleEventGenerate: options <Key> -serial xyz} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    set x {}






|







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    set x {}
} -body {
    bind .t.f <Key> "lappend x %E"
    event generate .t.f <Key> -sendevent 43
    return $x
} -cleanup {
    destroy .t.f
} -result {1}

test bind-22.93 {HandleEventGenerate: options <Key> -serial xyz} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
    set x {}
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    frame .t.f -class Test -width 150 -height 100
} -body {
    bind .t.f <a---> {nothing}
    bind .t.f
} -cleanup {
    destroy .t.f
} -result a
test bind-25.4 {ParseEventDescription} -body {


    bind .t <<Shift-Paste>> {puts hi}
    bind .t


} -result {<<Shift-Paste>>}

# Assorted error cases in event sequence parsing
test bind-25.5 {ParseEventDescription procedure error cases} -body {
    bind .t \x7 {puts hi}
} -returnCodes error -result {bad ASCII character 0x7}
test bind-25.6 {ParseEventDescription procedure error cases} -body {






|
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>
>







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    frame .t.f -class Test -width 150 -height 100
} -body {
    bind .t.f <a---> {nothing}
    bind .t.f
} -cleanup {
    destroy .t.f
} -result a
test bind-25.4 {ParseEventDescription} -setup {
    frame .t.f -class Test -width 150 -height 100
} -body {
    bind .t.f <<Shift-Paste>> {puts hi}
    bind .t.f
} -cleanup {
    destroy .t.f
} -result {<<Shift-Paste>>}

# Assorted error cases in event sequence parsing
test bind-25.5 {ParseEventDescription procedure error cases} -body {
    bind .t \x7 {puts hi}
} -returnCodes error -result {bad ASCII character 0x7}
test bind-25.6 {ParseEventDescription procedure error cases} -body {
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test bind-27.1 {button names} -body {
    bind .t <Expose-1> foo
} -returnCodes error -result {specified button "1" for non-button event}
test bind-27.2 {button names} -body {
    bind .t <Button-6> foo
} -returnCodes error -result {specified keysym "6" for non-key event}
test bind-27.3 {button names} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
} -body {
    bind .t.f <Button-1> {lappend x "button 1"}






|







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test bind-27.1 {button names} -body {
    bind .t <Expose-1> foo
} -returnCodes error -result {specified button "1" for non-button event}
test bind-27.2 {button names} -body {
    bind .t <Button-6> foo
} -returnCodes error -result {bad button number "6"}
test bind-27.3 {button names} -setup {
    frame .t.f -class Test -width 150 -height 100
    pack .t.f
    focus -force .t.f
    update
} -body {
    bind .t.f <Button-1> {lappend x "button 1"}
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    bind .t.f <<TestUserData>> {set x "TestUserData >%d<"}
    event generate .t.f <<TestUserData>> -data [string index abc 1] -when head
    list $x [update] $x
} -cleanup {
    destroy .t.f
} -result {{} {} {TestUserData >b<}}

test bind-32 {-warp, window was destroyed before the idle callback DoWarp} -setup {
    frame .t.f
    pack .t.f
    focus -force .t.f
    update
} -body {
    event generate .t.f <Button-1> -warp 1
    event generate .t.f <ButtonRelease-1>
    destroy .t.f
    update  ;  # shall simply not crash
} -cleanup {
} -result {}






























































































































































































































































































































































































































































































# cleanup
cleanupTests
return

# vi:set ts=4 sw=4 et:
# Local Variables:
# mode: tcl
# End:






|











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    bind .t.f <<TestUserData>> {set x "TestUserData >%d<"}
    event generate .t.f <<TestUserData>> -data [string index abc 1] -when head
    list $x [update] $x
} -cleanup {
    destroy .t.f
} -result {{} {} {TestUserData >b<}}

test bind-32.1 {-warp, window was destroyed before the idle callback DoWarp} -setup {
    frame .t.f
    pack .t.f
    focus -force .t.f
    update
} -body {
    event generate .t.f <Button-1> -warp 1
    event generate .t.f <ButtonRelease-1>
    destroy .t.f
    update  ;  # shall simply not crash
} -cleanup {
} -result {}
test bind-32.2 {detection of double click should not fail} -setup {
    pack [frame .t.f]
    focus -force .t.f
    bind .t.f <Double-Button-1> { set x "Double" }
    update
    set x {}
} -body {
    event generate .t.f <ButtonPress-1>
    event generate .t.f <ButtonRelease-1>
    # Simulate a lot of intervening exposure events. The old implementation
    # that used an event ring overflowed, and the double click was not detected.
    # But new implementation should work properly.
    for {set i 0} {$i < 1000} {incr i} {
        event generate .t.f <Expose>
    }
    event generate .t.f <ButtonPress-1>
    event generate .t.f <ButtonRelease-1>
    set x
} -cleanup {
    destroy .t.f
} -result {Double}
test bind-32.3 {should trigger best match of modifier states} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <Alt-Control-Key-A> { lappend x "Alt-Control" }
    bind .t.f <Shift-Control-Key-A> { lappend x "Shift-Control" }
    bind .t.f <Shift-Key-A> { lappend x "Shift" }
    event generate .t.f <Alt-Control-Key-A>
    set x
} -cleanup {
    destroy .t.f
} -result {Shift-Control}
test bind-32.4 {should not trigger Double-1} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <Double-1> { set x "Double" }
    event generate .t.f <1> -time current
    after 1000
    event generate .t.f <1> -time current
    set x
} -cleanup {
    destroy .t.f
} -result {}
test bind-32.5 {should trigger Quadruple-1} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <Quadruple-1> { set x "Quadruple" }
    bind .t.f <Triple-1> { set x "Triple" }
    bind .t.f <Double-1> { set x "Double" }
    bind .t.f <1> { set x "Single" }
    # Old implementation triggered "Double", but new implementation
    # triggers "Quadruple", the latter behavior conforms to other toolkits.
    event generate .t.f <Button-1> -time 0
    event generate .t.f <Button-1> -time 400
    event generate .t.f <Button-1> -time 800
    event generate .t.f <Button-1> -time 1200
    set x
} -cleanup {
    destroy .t.f
} -result {Quadruple}
test bind-32.6 {problem with sendevent} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    # Old implementation was losing sendevent value
    bind .t.f <FocusIn> { set x "sendevent=%E" }
    event generate .t.f <FocusIn> -sendevent 1
    set x
} -cleanup {
    destroy .t.f
} -result {sendevent=1}
test bind-32.7 {test sequences} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <Double-1> { lappend x "Double" }
    bind .t.f <1><1><a> { lappend x "11" }
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <a>
    set x
} -cleanup {
    destroy .t.f
} -result {Double 11}
test bind-32.8 {test sequences} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <a><1><Double-1><1><a> { lappend x "Double" }
    event generate .t.f <a>
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <a>
    set x
} -cleanup {
    destroy .t.f
} -result {Double}
test bind-32.9 {trigger events for modifier keys} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <Any-Key> { set x "Key" }
    event generate .t.f <KeyPress> -keysym Caps_Lock
    set x
} -cleanup {
    destroy .t.f
} -result {Key}
test bind-32.10 {reset key state when destroying window} -setup {
    set x {}
} -body {
    pack [frame .t.f]; update; focus -force .t.f
    bind .t.f <Key-A> { set x "A" }
    event generate .t.f <KeyPress-A>
    event generate .t.f <KeyPress-A>
    destroy .t.f; update
    pack [frame .t.f]; update; focus -force .t.f
    bind .t.f <Key-A> { set x "A" }
    bind .t.f <Double-Key-A> { set x "AA" }
    event generate .t.f <KeyPress-A>
    destroy .t.f
    set x
} -result {A}
test bind-32.11 {match detailed virtual} -setup {
    pack [frame .t.f -class Test]
    focus -force .t.f
    update
    set x {}
} -body {
    event add <<TestControlButton1>> <Control-Button-1>
    bind Test <<TestControlButton1>> { set x "Control-Button-1" }
    bind Test <Button-1> { set x "Button-1" }
    bind .t.f <Button-1> { set x "Button-1" }
    event generate .t.f <Control-ButtonPress-1>
    set x
} -cleanup {
    destroy .t.f
    event delete <<TestControlButton1>>
    bind Test <Button-1> {#}
} -result {Control-Button-1}
test bind-32.12 {don't detect repetition when window has changed} -setup {
    pack [frame .t.f]
    pack [frame .t.g]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <Button-1> { set x "1" }
    bind .t.f <Double-Button-1> { set x "11" }
    event generate .t.f <ButtonPress-1>
    event generate .t.g <ButtonPress-1>
    event generate .t.f <ButtonPress-1>
    set x
} -cleanup {
    destroy .t.f
    destroy .t.g
} -result {1}
test bind-32.13 {don't detect repetition when window has changed} -setup {
    pack [frame .t.f]
    pack [frame .t.g]
    update
    set x {}
} -body {
    bind .t.f <Key-A> { set x "A" }
    bind .t.f <Double-Key-A> { set x "AA" }
    focus -force .t.f; event generate .t.f <KeyPress-A>
    focus -force .t.g; event generate .t.g <KeyPress-A>
    focus -force .t.f; event generate .t.f <KeyPress-A>
    set x
} -cleanup {
    destroy .t.f
    destroy .t.g
} -result {A}
test bind-32.14 {don't detect repetition when window has changed} -setup {
    pack [frame .t.f]
    pack [frame .t.g]
    update
    set x {}
} -body {
    bind .t.f <ButtonPress-1> { set x "1" }
    bind .t.f <Double-ButtonPress-1> { set x "11" }
    focus -force .t.f; event generate .t.f <ButtonPress-1>
    focus -force .t.g; event generate .t.g <ButtonPress-1>
    focus -force .t.f; event generate .t.f <ButtonPress-1>
    set x
} -cleanup {
    destroy .t.f
    destroy .t.g
} -result {1}
test bind-32.15 {reset button state when destroying window} -setup {
    set x {}
} -body {
    pack [frame .t.f]; update; focus -force .t.f
    bind .t.f <ButtonPress-1> { set x "1" }
    event generate .t.f <ButtonPress-1>
    event generate .t.f <ButtonPress-1>
    destroy .t.f; update
    pack [frame .t.f]; update; focus -force .t.f
    bind .t.f <ButtonPress-1> { set x "1" }
    bind .t.f <Double-ButtonPress-1> { set x "11" }
    event generate .t.f <ButtonPress-1>
    destroy .t.f
    set x
} -result {1}

test bind-33.1 {prefer longest match} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <a><1><1> { lappend x "a11" }
    bind .t.f <Double-1> { lappend x "Double" }
    event generate .t.f <a>
    event generate .t.f <1>
    event generate .t.f <1>
    set x
} -cleanup {
    destroy .t.f
} -result {a11}
test bind-33.2 {should prefer most specific event} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <Double-1> { lappend x "Double" }
    bind .t.f <1><1> { lappend x "11" }
    event generate .t.f <1>
    event generate .t.f <1>
    set x
} -cleanup {
    destroy .t.f
    # This test case shows that old implementation has an issue, because
    # it is expected that <Double-1> is matching, this binding
    # is more specific. But new implementation will be conform to old,
    # and so "11" is the expected result.
} -result {11}
test bind-33.3 {should prefer most specific event} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <a><Double-1><a> { lappend x "Double" }
    bind .t.f <a><1><1><a> { lappend x "11" }
    event generate .t.f <a>
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <a>
    set x
} -cleanup {
    destroy .t.f
    # Also this test case shows that old implementation has an issue, it is
    # expected that <a><Double-1><a> is matching, because <Double-1> is more
    # specific than <1><1>. But new implementation will be conform to old,
    # and so "11" is the expected result.
} -result {11}
test bind-33.4 {prefer most specific event} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <1><1> { lappend x "11" }
    bind .t.f <Double-1> { lappend x "Double" }
    event generate .t.f <1> -time 0
    event generate .t.f <1> -time 1000
    set x
} -cleanup {
    destroy .t.f
} -result {11}
test bind-33.5 {prefer most specific event} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <1><1> { lappend x "11" }
    bind .t.f <Double-ButtonPress> { lappend x "Double" }
    event generate .t.f <1>
    event generate .t.f <1>
    set x
} -cleanup {
    destroy .t.f
} -result {11}
test bind-33.6 {prefer most specific event} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <a><1><1><1><1><a> { lappend x "1111" }
    bind .t.f <a><ButtonPress><Double-ButtonPress><ButtonPress><a> { lappend x "Any-Double-Any" }
    event generate .t.f <a>
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <a>
    set x
} -cleanup {
    destroy .t.f
} -result {1111}
test bind-33.7 {prefer most specific event} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <ButtonPress-1><a> { lappend x "1" }
    bind .t.f <ButtonPress><a> { lappend x "Any" }
    event generate .t.f <1>
    event generate .t.f <a>
    set x
} -cleanup {
    destroy .t.f
} -result {1}
test bind-33.8 {prefer most specific event} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <Double-ButtonPress-1><a> { lappend x "1" }
    bind .t.f <ButtonPress><ButtonPress><a> { lappend x "Any" }
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <a>
    set x
} -cleanup {
    destroy .t.f
} -result {1}
test bind-33.9 {prefer last in case of homogeneous equal patterns} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <1><2><2><Double-1> { lappend x "first" }
    bind .t.f <1><Double-2><1><1> { lappend x "last" }
    event generate .t.f <1>
    event generate .t.f <2>
    event generate .t.f <2>
    event generate .t.f <1>
    event generate .t.f <1>
    set x
} -cleanup {
    destroy .t.f
} -result {last}
test bind-33.10 {prefer last in case of homogeneous equal patterns} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <1><Double-2><1><1> { lappend x "first" }
    bind .t.f <1><2><2><Double-1> { lappend x "last" }
    event generate .t.f <1>
    event generate .t.f <2>
    event generate .t.f <2>
    event generate .t.f <1>
    event generate .t.f <1>
    set x
} -cleanup {
    destroy .t.f
} -result {last}
test bind-33.11 {should prefer most specific} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <2><Double-1><Double-2><Double-1><2><2> { lappend x "first" }
    bind .t.f <2><1><1><2><2><Double-1><Double-2> { lappend x "last" }
    event generate .t.f <2>
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <2>
    event generate .t.f <2>
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <2>
    event generate .t.f <2>
    set x
} -cleanup {
    destroy .t.f
    # This test case shows that old implementation has an issue, because
    # it is expected that first one is matching, this binding
    # is more specific. But new implementation will be conform to old,
    # and so "last" is the expected result.
} -result {last}
test bind-33.12 {prefer last in case of homogeneous equal patterns} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <Control-1><1> { lappend x "first" }
    bind .t.f <1><Control-1> { lappend x "last" }
    event generate .t.f <Control-1>
    event generate .t.f <Control-1>
    set x
} -cleanup {
    destroy .t.f
} -result {last}
test bind-33.13 {prefer last in case of homogeneous equal patterns} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <1><Control-1> { lappend x "first" }
    bind .t.f <Control-1><1> { lappend x "last" }
    event generate .t.f <Control-1>
    event generate .t.f <Control-1>
    set x
} -cleanup {
    destroy .t.f
    # Old implementation failed, and returned "first", but this was wrong,
    # because both bindings are homogeneous equal, so the most recently defined
    # must be preferred.
} -result {last}
test bind-33.14 {prefer last in case of homogeneous equal patterns} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <1><ButtonPress><1><ButtonPress> { lappend x "first" }
    bind .t.f <ButtonPress><1><ButtonPress><1> { lappend x "last" }
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <1>
    set x
} -cleanup {
    destroy .t.f
} -result {last}
test bind-33.15 {prefer last in case of homogeneous equal patterns} -setup {
    pack [frame .t.f]
    focus -force .t.f
    update
    set x {}
} -body {
    bind .t.f <ButtonPress><1><ButtonPress><1> { lappend x "first" }
    bind .t.f <1><ButtonPress><1><ButtonPress> { lappend x "last" }
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <1>
    event generate .t.f <1>
    set x
} -cleanup {
    destroy .t.f
    # Old implementation failed, and returned "first", but this was wrong,
    # because both bindings are homogeneous equal, so the most recently defined
    # must be preferred.
} -result {last}


# cleanup
cleanupTests
return

# vi:set ts=4 sw=4 et:
# Local Variables:
# mode: tcl
# End:

Changes to unix/tkUnixPort.h.

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#include <math.h>
#include <pwd.h>
#ifdef NO_STDLIB_H
#   include "../compat/stdlib.h"
#else
#   include <stdlib.h>
#endif

#include <string.h>
#include <sys/types.h>
#include <sys/file.h>
#ifdef HAVE_SYS_SELECT_H
#   include <sys/select.h>
#endif
#include <sys/stat.h>






>







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#include <math.h>
#include <pwd.h>
#ifdef NO_STDLIB_H
#   include "../compat/stdlib.h"
#else
#   include <stdlib.h>
#endif
#include <assert.h>
#include <string.h>
#include <sys/types.h>
#include <sys/file.h>
#ifdef HAVE_SYS_SELECT_H
#   include <sys/select.h>
#endif
#include <sys/stat.h>

Changes to win/tkWinPort.h.

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 * compile under the windows compilers.
 *---------------------------------------------------------------------------
 */

#include <wchar.h>
#include <io.h>
#include <stdlib.h>

#include <errno.h>
#include <fcntl.h>
#include <malloc.h>
#include <ctype.h>
#include <math.h>
#include <string.h>
#include <limits.h>






>







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 * compile under the windows compilers.
 *---------------------------------------------------------------------------
 */

#include <wchar.h>
#include <io.h>
#include <stdlib.h>
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <malloc.h>
#include <ctype.h>
#include <math.h>
#include <string.h>
#include <limits.h>