Tcl Source Code

Changes On Branch tip-651
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Changes In Branch tip-651 Excluding Merge-Ins

This is equivalent to a diff from cfa529ea81 to daadbbf337

2022-11-20
17:38
Merge 8.6. TIP #651 implementation (since there are already 2 YES votes, no NO votes expected) check-in: 4218e66972 user: jan.nijtmans tags: core-8-branch
2022-11-17
11:18
doc update check-in: b564f03217 user: jan.nijtmans tags: core-8-branch
04:54
TIP 651 implementation Closed-Leaf check-in: daadbbf337 user: apnadkarni tags: tip-651
03:54
Merge 8.7 - reserve stub entry 687 check-in: 2166c1e9e1 user: apnadkarni tags: trunk, main
03:52
Reserve stub entry 687 for TIP #651 check-in: cfa529ea81 user: apnadkarni tags: core-8-branch
2022-11-16
09:37
http 2.10a4 -> 2.10b1, for upcoming release check-in: 4649724d42 user: jan.nijtmans tags: core-8-branch

Changes to doc/DString.3.

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\fBTcl_DStringTrunc\fR(\fIdsPtr, newLength\fR)
.sp
\fBTcl_DStringFree\fR(\fIdsPtr\fR)
.sp
\fBTcl_DStringResult\fR(\fIinterp, dsPtr\fR)
.sp
\fBTcl_DStringGetResult\fR(\fIinterp, dsPtr\fR)




.SH ARGUMENTS
.AS Tcl_DString newLength in/out
.AP Tcl_DString *dsPtr in/out
Pointer to structure that is used to manage a dynamic string.
.AP "const char" *bytes in
Pointer to characters to append to dynamic string.
.AP "const char" *element in






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\fBTcl_DStringTrunc\fR(\fIdsPtr, newLength\fR)
.sp
\fBTcl_DStringFree\fR(\fIdsPtr\fR)
.sp
\fBTcl_DStringResult\fR(\fIinterp, dsPtr\fR)
.sp
\fBTcl_DStringGetResult\fR(\fIinterp, dsPtr\fR)
.sp
Tcl_Obj *
\fBTcl_DStringToObj\fR(\fIdsPtr\fR)
.sp
.SH ARGUMENTS
.AS Tcl_DString newLength in/out
.AP Tcl_DString *dsPtr in/out
Pointer to structure that is used to manage a dynamic string.
.AP "const char" *bytes in
Pointer to characters to append to dynamic string.
.AP "const char" *element in
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.PP
\fBTcl_DStringResult\fR sets the result of \fIinterp\fR to the value of
the dynamic string given by \fIdsPtr\fR.  It does this by moving
a pointer from \fIdsPtr\fR to the interpreter's result.
This saves the cost of allocating new memory and copying the string.
\fBTcl_DStringResult\fR also reinitializes the dynamic string to
an empty string.



.PP
\fBTcl_DStringGetResult\fR does the opposite of \fBTcl_DStringResult\fR.
It sets the value of \fIdsPtr\fR to the result of \fIinterp\fR and
it clears \fIinterp\fR's result.
If possible it does this by moving a pointer rather than by copying
the string.











.SH KEYWORDS
append, dynamic string, free, result






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.PP
\fBTcl_DStringResult\fR sets the result of \fIinterp\fR to the value of
the dynamic string given by \fIdsPtr\fR.  It does this by moving
a pointer from \fIdsPtr\fR to the interpreter's result.
This saves the cost of allocating new memory and copying the string.
\fBTcl_DStringResult\fR also reinitializes the dynamic string to
an empty string.
Since the dynamic string is reinitialized, there is no need to
further call \fBTcl_DStringFree\fR on it and it can be reused without
calling \fBTcl_DStringInit\fR.
.PP
\fBTcl_DStringGetResult\fR does the opposite of \fBTcl_DStringResult\fR.
It sets the value of \fIdsPtr\fR to the result of \fIinterp\fR and
it clears \fIinterp\fR's result.
If possible it does this by moving a pointer rather than by copying
the string.
.PP
\fBTcl_DStringToObj\fR returns a \fBTcl_Obj\fR containing the value of
the dynamic string given by \fIdsPtr\fR.  It does this by moving
a pointer from \fIdsPtr\fR to a newly allocated \fBTcl_Obj\fR
and reinitializing to dynamic string to an empty string.
This saves the cost of allocating new memory and copying the string.
Since the dynamic string is reinitialized, there is no need to
further call \fBTcl_DStringFree\fR on it and it can be reused without
calling \fBTcl_DStringInit\fR.
The returned \fBTcl_Obj\fR has a reference count of 0.

.SH KEYWORDS
append, dynamic string, free, result

Changes to generic/tcl.decls.

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# TIP #650 (reserved)
#declare 686 {
#    int Tcl_GetWideUIntFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
#	    Tcl_WideUInt *uwidePtr)
#}

# TIP 651 (reserved)
#declare 687 {
#    Tcl_Obj *Tcl_DStringToObj(Tcl_DString *dsPtr)
#}


# ----- BASELINE -- FOR -- 8.7.0 / 9.0.0 ----- #

##############################################################################

# Define the platform specific public Tcl interface. These functions are only
# available on the designated platform.






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# TIP #650 (reserved)
#declare 686 {
#    int Tcl_GetWideUIntFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
#	    Tcl_WideUInt *uwidePtr)
#}

# TIP 651
declare 687 {
    Tcl_Obj *Tcl_DStringToObj(Tcl_DString *dsPtr)

}

# ----- BASELINE -- FOR -- 8.7.0 / 9.0.0 ----- #

##############################################################################

# Define the platform specific public Tcl interface. These functions are only
# available on the designated platform.

Changes to generic/tclDecls.h.

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				size_t numBytes, void **clientDataPtr,
				int *typePtr);
/* 682 */
EXTERN int		Tcl_RemoveChannelMode(Tcl_Interp *interp,
				Tcl_Channel chan, int mode);
/* 683 */
EXTERN int		Tcl_GetEncodingNulLength(Tcl_Encoding encoding);






typedef struct {
    const struct TclPlatStubs *tclPlatStubs;
    const struct TclIntStubs *tclIntStubs;
    const struct TclIntPlatStubs *tclIntPlatStubs;
} TclStubHooks;







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				size_t numBytes, void **clientDataPtr,
				int *typePtr);
/* 682 */
EXTERN int		Tcl_RemoveChannelMode(Tcl_Interp *interp,
				Tcl_Channel chan, int mode);
/* 683 */
EXTERN int		Tcl_GetEncodingNulLength(Tcl_Encoding encoding);
/* Slot 684 is reserved */
/* Slot 685 is reserved */
/* Slot 686 is reserved */
/* 687 */
EXTERN Tcl_Obj *	Tcl_DStringToObj(Tcl_DString *dsPtr);

typedef struct {
    const struct TclPlatStubs *tclPlatStubs;
    const struct TclIntStubs *tclIntStubs;
    const struct TclIntPlatStubs *tclIntPlatStubs;
} TclStubHooks;

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    Tcl_Trace (*tcl_CreateObjTrace2) (Tcl_Interp *interp, Tcl_Size level, int flags, Tcl_CmdObjTraceProc2 *objProc2, void *clientData, Tcl_CmdObjTraceDeleteProc *delProc); /* 677 */
    Tcl_Command (*tcl_NRCreateCommand2) (Tcl_Interp *interp, const char *cmdName, Tcl_ObjCmdProc2 *proc, Tcl_ObjCmdProc2 *nreProc2, void *clientData, Tcl_CmdDeleteProc *deleteProc); /* 678 */
    int (*tcl_NRCallObjProc2) (Tcl_Interp *interp, Tcl_ObjCmdProc2 *objProc2, void *clientData, size_t objc, Tcl_Obj *const objv[]); /* 679 */
    int (*tcl_GetNumberFromObj) (Tcl_Interp *interp, Tcl_Obj *objPtr, void **clientDataPtr, int *typePtr); /* 680 */
    int (*tcl_GetNumber) (Tcl_Interp *interp, const char *bytes, size_t numBytes, void **clientDataPtr, int *typePtr); /* 681 */
    int (*tcl_RemoveChannelMode) (Tcl_Interp *interp, Tcl_Channel chan, int mode); /* 682 */
    int (*tcl_GetEncodingNulLength) (Tcl_Encoding encoding); /* 683 */




} TclStubs;

extern const TclStubs *tclStubsPtr;

#ifdef __cplusplus
}
#endif






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    Tcl_Trace (*tcl_CreateObjTrace2) (Tcl_Interp *interp, Tcl_Size level, int flags, Tcl_CmdObjTraceProc2 *objProc2, void *clientData, Tcl_CmdObjTraceDeleteProc *delProc); /* 677 */
    Tcl_Command (*tcl_NRCreateCommand2) (Tcl_Interp *interp, const char *cmdName, Tcl_ObjCmdProc2 *proc, Tcl_ObjCmdProc2 *nreProc2, void *clientData, Tcl_CmdDeleteProc *deleteProc); /* 678 */
    int (*tcl_NRCallObjProc2) (Tcl_Interp *interp, Tcl_ObjCmdProc2 *objProc2, void *clientData, size_t objc, Tcl_Obj *const objv[]); /* 679 */
    int (*tcl_GetNumberFromObj) (Tcl_Interp *interp, Tcl_Obj *objPtr, void **clientDataPtr, int *typePtr); /* 680 */
    int (*tcl_GetNumber) (Tcl_Interp *interp, const char *bytes, size_t numBytes, void **clientDataPtr, int *typePtr); /* 681 */
    int (*tcl_RemoveChannelMode) (Tcl_Interp *interp, Tcl_Channel chan, int mode); /* 682 */
    int (*tcl_GetEncodingNulLength) (Tcl_Encoding encoding); /* 683 */
    void (*reserved684)(void);
    void (*reserved685)(void);
    void (*reserved686)(void);
    Tcl_Obj * (*tcl_DStringToObj) (Tcl_DString *dsPtr); /* 687 */
} TclStubs;

extern const TclStubs *tclStubsPtr;

#ifdef __cplusplus
}
#endif
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	(tclStubsPtr->tcl_GetNumberFromObj) /* 680 */
#define Tcl_GetNumber \
	(tclStubsPtr->tcl_GetNumber) /* 681 */
#define Tcl_RemoveChannelMode \
	(tclStubsPtr->tcl_RemoveChannelMode) /* 682 */
#define Tcl_GetEncodingNulLength \
	(tclStubsPtr->tcl_GetEncodingNulLength) /* 683 */






#endif /* defined(USE_TCL_STUBS) */

/* !END!: Do not edit above this line. */

#undef TclUnusedStubEntry
#if defined(USE_TCL_STUBS)






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	(tclStubsPtr->tcl_GetNumberFromObj) /* 680 */
#define Tcl_GetNumber \
	(tclStubsPtr->tcl_GetNumber) /* 681 */
#define Tcl_RemoveChannelMode \
	(tclStubsPtr->tcl_RemoveChannelMode) /* 682 */
#define Tcl_GetEncodingNulLength \
	(tclStubsPtr->tcl_GetEncodingNulLength) /* 683 */
/* Slot 684 is reserved */
/* Slot 685 is reserved */
/* Slot 686 is reserved */
#define Tcl_DStringToObj \
	(tclStubsPtr->tcl_DStringToObj) /* 687 */

#endif /* defined(USE_TCL_STUBS) */

/* !END!: Do not edit above this line. */

#undef TclUnusedStubEntry
#if defined(USE_TCL_STUBS)

Changes to generic/tclInt.h.

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			    void *clientData);
MODULE_SCOPE void	TclDeleteLateExitHandler(Tcl_ExitProc *proc,
			    void *clientData);
MODULE_SCOPE char *	TclDStringAppendObj(Tcl_DString *dsPtr,
			    Tcl_Obj *objPtr);
MODULE_SCOPE char *	TclDStringAppendDString(Tcl_DString *dsPtr,
			    Tcl_DString *toAppendPtr);
MODULE_SCOPE Tcl_Obj *	TclDStringToObj(Tcl_DString *dsPtr);
MODULE_SCOPE Tcl_Obj *const *TclFetchEnsembleRoot(Tcl_Interp *interp,
			    Tcl_Obj *const *objv, int objc, int *objcPtr);
MODULE_SCOPE Tcl_Obj *const *TclEnsembleGetRewriteValues(Tcl_Interp *interp);
MODULE_SCOPE Tcl_Namespace *TclEnsureNamespace(Tcl_Interp *interp,
			    Tcl_Namespace *namespacePtr);
MODULE_SCOPE void	TclFinalizeAllocSubsystem(void);
MODULE_SCOPE void	TclFinalizeAsync(void);






<







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			    void *clientData);
MODULE_SCOPE void	TclDeleteLateExitHandler(Tcl_ExitProc *proc,
			    void *clientData);
MODULE_SCOPE char *	TclDStringAppendObj(Tcl_DString *dsPtr,
			    Tcl_Obj *objPtr);
MODULE_SCOPE char *	TclDStringAppendDString(Tcl_DString *dsPtr,
			    Tcl_DString *toAppendPtr);

MODULE_SCOPE Tcl_Obj *const *TclFetchEnsembleRoot(Tcl_Interp *interp,
			    Tcl_Obj *const *objv, int objc, int *objcPtr);
MODULE_SCOPE Tcl_Obj *const *TclEnsembleGetRewriteValues(Tcl_Interp *interp);
MODULE_SCOPE Tcl_Namespace *TclEnsureNamespace(Tcl_Interp *interp,
			    Tcl_Namespace *namespacePtr);
MODULE_SCOPE void	TclFinalizeAllocSubsystem(void);
MODULE_SCOPE void	TclFinalizeAsync(void);
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 * MODULE_SCOPE void   TclDStringClear(Tcl_DString *dsPtr);
 */

#define TclDStringAppendLiteral(dsPtr, sLiteral) \
    Tcl_DStringAppend((dsPtr), (sLiteral), sizeof(sLiteral "") - 1)
#define TclDStringClear(dsPtr) \
    Tcl_DStringSetLength((dsPtr), 0)



/*
 *----------------------------------------------------------------
 * Macros used by the Tcl core to test for some special double values.
 * (deprecated) The ANSI C "prototypes" for these macros are:
 *
 * MODULE_SCOPE int	TclIsInfinite(double d);






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 * MODULE_SCOPE void   TclDStringClear(Tcl_DString *dsPtr);
 */

#define TclDStringAppendLiteral(dsPtr, sLiteral) \
    Tcl_DStringAppend((dsPtr), (sLiteral), sizeof(sLiteral "") - 1)
#define TclDStringClear(dsPtr) \
    Tcl_DStringSetLength((dsPtr), 0)
/* Backward compatibility for TclDStringToObj which is now exported */
#define TclDStringToObj Tcl_DStringToObj

/*
 *----------------------------------------------------------------
 * Macros used by the Tcl core to test for some special double values.
 * (deprecated) The ANSI C "prototypes" for these macros are:
 *
 * MODULE_SCOPE int	TclIsInfinite(double d);

Changes to generic/tclStubInit.c.

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    Tcl_CreateObjTrace2, /* 677 */
    Tcl_NRCreateCommand2, /* 678 */
    Tcl_NRCallObjProc2, /* 679 */
    Tcl_GetNumberFromObj, /* 680 */
    Tcl_GetNumber, /* 681 */
    Tcl_RemoveChannelMode, /* 682 */
    Tcl_GetEncodingNulLength, /* 683 */




};

/* !END!: Do not edit above this line. */






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    Tcl_CreateObjTrace2, /* 677 */
    Tcl_NRCreateCommand2, /* 678 */
    Tcl_NRCallObjProc2, /* 679 */
    Tcl_GetNumberFromObj, /* 680 */
    Tcl_GetNumber, /* 681 */
    Tcl_RemoveChannelMode, /* 682 */
    Tcl_GetEncodingNulLength, /* 683 */
    0, /* 684 */
    0, /* 685 */
    0, /* 686 */
    Tcl_DStringToObj, /* 687 */
};

/* !END!: Do not edit above this line. */

Changes to generic/tclTest.c.

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	}
	Tcl_SetObjResult(interp, Tcl_NewWideIntObj(Tcl_DStringLength(&dstring)));
    } else if (strcmp(argv[1], "result") == 0) {
	if (argc != 2) {
	    goto wrongNumArgs;
	}
	Tcl_DStringResult(interp, &dstring);





    } else if (strcmp(argv[1], "trunc") == 0) {
	if (argc != 3) {
	    goto wrongNumArgs;
	}
	if (Tcl_GetInt(interp, argv[2], &count) != TCL_OK) {
	    return TCL_ERROR;
	}
	Tcl_DStringSetLength(&dstring, count);
    } else if (strcmp(argv[1], "start") == 0) {
	if (argc != 2) {
	    goto wrongNumArgs;
	}
	Tcl_DStringStartSublist(&dstring);
    } else {
	Tcl_AppendResult(interp, "bad option \"", argv[1],
		"\": must be append, element, end, free, get, length, "
		"result, trunc, or start", NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*
 * The procedure below is used as a special freeProc to test how well






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	}
	Tcl_SetObjResult(interp, Tcl_NewWideIntObj(Tcl_DStringLength(&dstring)));
    } else if (strcmp(argv[1], "result") == 0) {
	if (argc != 2) {
	    goto wrongNumArgs;
	}
	Tcl_DStringResult(interp, &dstring);
    } else if (strcmp(argv[1], "toobj") == 0) {
	if (argc != 2) {
	    goto wrongNumArgs;
	}
	Tcl_SetObjResult(interp, Tcl_DStringToObj(&dstring));
    } else if (strcmp(argv[1], "trunc") == 0) {
	if (argc != 3) {
	    goto wrongNumArgs;
	}
	if (Tcl_GetInt(interp, argv[2], &count) != TCL_OK) {
	    return TCL_ERROR;
	}
	Tcl_DStringSetLength(&dstring, count);
    } else if (strcmp(argv[1], "start") == 0) {
	if (argc != 2) {
	    goto wrongNumArgs;
	}
	Tcl_DStringStartSublist(&dstring);
    } else {
	Tcl_AppendResult(interp, "bad option \"", argv[1],
		"\": must be append, element, end, free, get, gresult, length, "
		"result, start, toobj, or trunc", NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*
 * The procedure below is used as a special freeProc to test how well

Changes to generic/tclUtil.c.

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 *	empty string; it does not need to be Tcl_DStringFree'd after this if
 *	not used further.
 *
 *----------------------------------------------------------------------
 */

Tcl_Obj *
TclDStringToObj(
    Tcl_DString *dsPtr)
{
    Tcl_Obj *result;

    if (dsPtr->string == dsPtr->staticSpace) {
	if (dsPtr->length == 0) {
	    TclNewObj(result);






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 *	empty string; it does not need to be Tcl_DStringFree'd after this if
 *	not used further.
 *
 *----------------------------------------------------------------------
 */

Tcl_Obj *
Tcl_DStringToObj(
    Tcl_DString *dsPtr)
{
    Tcl_Obj *result;

    if (dsPtr->string == dsPtr->staticSpace) {
	if (dsPtr->length == 0) {
	    TclNewObj(result);

Changes to tests/dstring.test.

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    set result {}
    lappend result [testdstring gresult special]
    testdstring append z 1
    lappend result [testdstring get]
} -cleanup {
    testdstring free
} -result {{} {This is a specially-allocated stringz}}








































# cleanup
if {[testConstraint testdstring]} {
    testdstring free
}
::tcltest::cleanupTests
return

# Local Variables:
# mode: tcl
# fill-column: 78
# End:






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    set result {}
    lappend result [testdstring gresult special]
    testdstring append z 1
    lappend result [testdstring get]
} -cleanup {
    testdstring free
} -result {{} {This is a specially-allocated stringz}}

test dstring-7.1 {copying to Tcl_Obj} -constraints testdstring -setup {
    testdstring free
} -body {
    testdstring append xyz -1
    list [testdstring toobj] [testdstring length]
} -cleanup {
    testdstring free
} -result {xyz 0}
test dstring-7.2 {copying to a Tcl_Obj} -constraints testdstring -setup {
    testdstring free
    unset -nocomplain a
} -body {
    foreach l {a b c d e f g h i j k l m n o p} {
	testdstring append $l$l$l$l$l$l$l$l$l$l$l$l$l$l$l$l$l$l$l$l$l\n -1
    }
    set a [testdstring toobj]
    testdstring append abc -1
    list $a [testdstring get]
} -cleanup {
    testdstring free
} -result {{aaaaaaaaaaaaaaaaaaaaa
bbbbbbbbbbbbbbbbbbbbb
ccccccccccccccccccccc
ddddddddddddddddddddd
eeeeeeeeeeeeeeeeeeeee
fffffffffffffffffffff
ggggggggggggggggggggg
hhhhhhhhhhhhhhhhhhhhh
iiiiiiiiiiiiiiiiiiiii
jjjjjjjjjjjjjjjjjjjjj
kkkkkkkkkkkkkkkkkkkkk
lllllllllllllllllllll
mmmmmmmmmmmmmmmmmmmmm
nnnnnnnnnnnnnnnnnnnnn
ooooooooooooooooooooo
ppppppppppppppppppppp
} abc}


# cleanup
if {[testConstraint testdstring]} {
    testdstring free
}
::tcltest::cleanupTests
return

# Local Variables:
# mode: tcl
# fill-column: 78
# End: