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Overview
Comment:Use more TCL_AUTO_LENGTH, when appropriate
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SHA3-256: c643e8fe38b287d178ec9d9d7ea23ebab914cae1dd704bc81d262e41888fe911
User & Date: jan.nijtmans 2018-10-06 19:20:43
Context
2018-10-08
19:00
TIP #494 implementation: More use of size_t in Tcl 9 check-in: f3d49044c4 user: jan.nijtmans tags: trunk
2018-10-06
19:20
Use more TCL_AUTO_LENGTH, when appropriate Closed-Leaf check-in: c643e8fe38 user: jan.nijtmans tags: memory-API
18:33
merge trunk check-in: 52bb60626e user: jan.nijtmans tags: memory-API
Changes
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Changes to doc/Encoding.3.

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.AP "const char" *src in
For the \fBTcl_ExternalToUtf\fR functions, an array of bytes in the
specified encoding that are to be converted to UTF-8.  For the
\fBTcl_UtfToExternal\fR and \fBTcl_WinUtfToTChar\fR functions, an array of
UTF-8 characters to be converted to the specified encoding.
.AP "const TCHAR" *tsrc in
An array of Windows TCHAR characters to convert to UTF-8.
.AP int srcLen in
Length of \fIsrc\fR or \fItsrc\fR in bytes.  If the length is negative, the
encoding-specific length of the string is used.
.AP Tcl_DString *dstPtr out
Pointer to an uninitialized or free \fBTcl_DString\fR in which the converted
result will be stored.
.AP int flags in
Various flag bits OR-ed together.






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.AP "const char" *src in
For the \fBTcl_ExternalToUtf\fR functions, an array of bytes in the
specified encoding that are to be converted to UTF-8.  For the
\fBTcl_UtfToExternal\fR and \fBTcl_WinUtfToTChar\fR functions, an array of
UTF-8 characters to be converted to the specified encoding.
.AP "const TCHAR" *tsrc in
An array of Windows TCHAR characters to convert to UTF-8.
.AP size_t srcLen in
Length of \fIsrc\fR or \fItsrc\fR in bytes.  If the length is negative, the
encoding-specific length of the string is used.
.AP Tcl_DString *dstPtr out
Pointer to an uninitialized or free \fBTcl_DString\fR in which the converted
result will be stored.
.AP int flags in
Various flag bits OR-ed together.

Changes to generic/tclBasic.c.

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 */

int
Tcl_EvalEx(
    Tcl_Interp *interp,		/* Interpreter in which to evaluate the
				 * script. Also used for error reporting. */
    const char *script,		/* First character of script to evaluate. */
    size_t numBytes,		/* Number of bytes in script. If (size_t)-1, the
				 * script consists of all bytes up to the
				 * first null character. */
    int flags)			/* Collection of OR-ed bits that control the
				 * evaluation of the script. Only
				 * TCL_EVAL_GLOBAL is currently supported. */
{
    return TclEvalEx(interp, script, numBytes, flags, 1, NULL, script);
................................................................................
}

int
TclEvalEx(
    Tcl_Interp *interp,		/* Interpreter in which to evaluate the
				 * script. Also used for error reporting. */
    const char *script,		/* First character of script to evaluate. */
    size_t numBytes,		/* Number of bytes in script. If (size_t)-1, the
				 * script consists of all bytes up to the
				 * first NUL character. */
    int flags,			/* Collection of OR-ed bits that control the
				 * evaluation of the script. Only
				 * TCL_EVAL_GLOBAL is currently supported. */
    int line,			/* The line the script starts on. */
    int *clNextOuter,		/* Information about an outer context for */
................................................................................
	if (clNextOuter) {
	    clNext = clNextOuter;
	} else {
	    clNext = &iPtr->scriptCLLocPtr->loc[0];
	}
    }

    if (numBytes == (size_t)-1) {
	numBytes = strlen(script);
    }
    Tcl_ResetResult(interp);

    savedVarFramePtr = iPtr->varFramePtr;
    if (flags & TCL_EVAL_GLOBAL) {
	iPtr->varFramePtr = iPtr->rootFramePtr;






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int
Tcl_EvalEx(
    Tcl_Interp *interp,		/* Interpreter in which to evaluate the
				 * script. Also used for error reporting. */
    const char *script,		/* First character of script to evaluate. */
    size_t numBytes,		/* Number of bytes in script. If -1, the
				 * script consists of all bytes up to the
				 * first null character. */
    int flags)			/* Collection of OR-ed bits that control the
				 * evaluation of the script. Only
				 * TCL_EVAL_GLOBAL is currently supported. */
{
    return TclEvalEx(interp, script, numBytes, flags, 1, NULL, script);
................................................................................
}

int
TclEvalEx(
    Tcl_Interp *interp,		/* Interpreter in which to evaluate the
				 * script. Also used for error reporting. */
    const char *script,		/* First character of script to evaluate. */
    size_t numBytes,		/* Number of bytes in script. If -1, the
				 * script consists of all bytes up to the
				 * first NUL character. */
    int flags,			/* Collection of OR-ed bits that control the
				 * evaluation of the script. Only
				 * TCL_EVAL_GLOBAL is currently supported. */
    int line,			/* The line the script starts on. */
    int *clNextOuter,		/* Information about an outer context for */
................................................................................
	if (clNextOuter) {
	    clNext = clNextOuter;
	} else {
	    clNext = &iPtr->scriptCLLocPtr->loc[0];
	}
    }

    if (numBytes == TCL_AUTO_LENGTH) {
	numBytes = strlen(script);
    }
    Tcl_ResetResult(interp);

    savedVarFramePtr = iPtr->varFramePtr;
    if (flags & TCL_EVAL_GLOBAL) {
	iPtr->varFramePtr = iPtr->rootFramePtr;

Changes to generic/tclBinary.c.

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    length = byteArrayPtr->used;

    /*
     * How much space will string rep need?
     */

    size = length;
    for (i = 0; (i < length) && (size != (size_t)-1); i++) {
	if ((src[i] == 0) || (src[i] > 127)) {
	    size++;
	}
    }
    if (size == (size_t)-1) {
	Tcl_Panic("max size for a Tcl value exceeded");
    }

    dst = Tcl_Alloc(size + 1);
    objPtr->bytes = dst;
    objPtr->length = size;

................................................................................
{
    ByteArray *byteArrayPtr;
    size_t needed;

    if (Tcl_IsShared(objPtr)) {
	Tcl_Panic("%s called with shared object","TclAppendBytesToByteArray");
    }
    if (len == (size_t)-1) {
	Tcl_Panic("%s must be called with definite number of bytes to append",
		"TclAppendBytesToByteArray");
    }
    if (len == 0) {
	/* Append zero bytes is a no-op. */
	return;
    }






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    length = byteArrayPtr->used;

    /*
     * How much space will string rep need?
     */

    size = length;
    for (i = 0; (i < length) && (size != TCL_AUTO_LENGTH); i++) {
	if ((src[i] == 0) || (src[i] > 127)) {
	    size++;
	}
    }
    if (size == TCL_AUTO_LENGTH) {
	Tcl_Panic("max size for a Tcl value exceeded");
    }

    dst = Tcl_Alloc(size + 1);
    objPtr->bytes = dst;
    objPtr->length = size;

................................................................................
{
    ByteArray *byteArrayPtr;
    size_t needed;

    if (Tcl_IsShared(objPtr)) {
	Tcl_Panic("%s called with shared object","TclAppendBytesToByteArray");
    }
    if (len == TCL_AUTO_LENGTH) {
	Tcl_Panic("%s must be called with definite number of bytes to append",
		"TclAppendBytesToByteArray");
    }
    if (len == 0) {
	/* Append zero bytes is a no-op. */
	return;
    }

Changes to generic/tclCompExpr.c.

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

int
Tcl_ParseExpr(
    Tcl_Interp *interp,		/* Used for error reporting. */
    const char *start,		/* Start of source string to parse. */
    size_t numBytes,		/* Number of bytes in string. If (size_t)-1, the
				 * string consists of all bytes up to the
				 * first null character. */
    Tcl_Parse *parsePtr)	/* Structure to fill with information about
				 * the parsed expression; any previous
				 * information in the structure is ignored. */
{
    int code;
    OpNode *opTree = NULL;	/* Will point to the tree of operators. */
    Tcl_Obj *litList = Tcl_NewObj();	/* List to hold the literals. */
    Tcl_Obj *funcList = Tcl_NewObj();	/* List to hold the functon names. */
    Tcl_Parse *exprParsePtr = TclStackAlloc(interp, sizeof(Tcl_Parse));
				/* Holds the Tcl_Tokens of substitutions. */

    if (numBytes == (size_t)-1) {
	numBytes = (start ? strlen(start) : 0);
    }

    code = ParseExpr(interp, start, numBytes, &opTree, litList, funcList,
	    exprParsePtr, 1 /* parseOnly */);
    Tcl_DecrRefCount(funcList);
    Tcl_DecrRefCount(litList);






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

int
Tcl_ParseExpr(
    Tcl_Interp *interp,		/* Used for error reporting. */
    const char *start,		/* Start of source string to parse. */
    size_t numBytes,		/* Number of bytes in string. If -1, the
				 * string consists of all bytes up to the
				 * first null character. */
    Tcl_Parse *parsePtr)	/* Structure to fill with information about
				 * the parsed expression; any previous
				 * information in the structure is ignored. */
{
    int code;
    OpNode *opTree = NULL;	/* Will point to the tree of operators. */
    Tcl_Obj *litList = Tcl_NewObj();	/* List to hold the literals. */
    Tcl_Obj *funcList = Tcl_NewObj();	/* List to hold the functon names. */
    Tcl_Parse *exprParsePtr = TclStackAlloc(interp, sizeof(Tcl_Parse));
				/* Holds the Tcl_Tokens of substitutions. */

    if (numBytes == TCL_AUTO_LENGTH) {
	numBytes = (start ? strlen(start) : 0);
    }

    code = ParseExpr(interp, start, numBytes, &opTree, litList, funcList,
	    exprParsePtr, 1 /* parseOnly */);
    Tcl_DecrRefCount(funcList);
    Tcl_DecrRefCount(litList);

Changes to generic/tclCompile.c.

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void
TclCompileScript(
    Tcl_Interp *interp,		/* Used for error and status reporting. Also
				 * serves as context for finding and compiling
				 * commands. May not be NULL. */
    const char *script,		/* The source script to compile. */
    size_t numBytes,		/* Number of bytes in script. If (size_t)-1, the
				 * script consists of all bytes up to the
				 * first null character. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    int lastCmdIdx = -1;	/* Index into envPtr->cmdMapPtr of the last
				 * command this routine compiles into bytecode.
				 * Initial value of -1 indicates this routine






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void
TclCompileScript(
    Tcl_Interp *interp,		/* Used for error and status reporting. Also
				 * serves as context for finding and compiling
				 * commands. May not be NULL. */
    const char *script,		/* The source script to compile. */
    size_t numBytes,		/* Number of bytes in script. If -1, the
				 * script consists of all bytes up to the
				 * first null character. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    int lastCmdIdx = -1;	/* Index into envPtr->cmdMapPtr of the last
				 * command this routine compiles into bytecode.
				 * Initial value of -1 indicates this routine

Changes to generic/tclEncoding.c.

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char *
Tcl_ExternalToUtfDString(
    Tcl_Encoding encoding,	/* The encoding for the source string, or NULL
				 * for the default system encoding. */
    const char *src,		/* Source string in specified encoding. */
    size_t srcLen,		/* Source string length in bytes, or (size_t)-1 for
				 * encoding-specific string length. */
    Tcl_DString *dstPtr)	/* Uninitialized or free DString in which the
				 * converted string is stored. */
{
    char *dst;
    Tcl_EncodingState state;
    const Encoding *encodingPtr;
................................................................................
    if (encoding == NULL) {
	encoding = systemEncoding;
    }
    encodingPtr = (Encoding *) encoding;

    if (src == NULL) {
	srcLen = 0;
    } else if (srcLen == (size_t)-1) {
	srcLen = encodingPtr->lengthProc(src);
    }

    flags = TCL_ENCODING_START | TCL_ENCODING_END;

    while (1) {
	result = encodingPtr->toUtfProc(encodingPtr->clientData, src, srcLen,
................................................................................

int
Tcl_ExternalToUtf(
    Tcl_Interp *interp,		/* Interp for error return, if not NULL. */
    Tcl_Encoding encoding,	/* The encoding for the source string, or NULL
				 * for the default system encoding. */
    const char *src,		/* Source string in specified encoding. */
    size_t srcLen,		/* Source string length in bytes, or (size_t)-1
				 * for encoding-specific string length. */
    int flags,			/* Conversion control flags. */
    Tcl_EncodingState *statePtr,/* Place for conversion routine to store state
				 * information used during a piecewise
				 * conversion. Contents of statePtr are
				 * initialized and/or reset by conversion
				 * routine under control of flags argument. */
................................................................................
    if (encoding == NULL) {
	encoding = systemEncoding;
    }
    encodingPtr = (Encoding *) encoding;

    if (src == NULL) {
	srcLen = 0;
    } else if (srcLen == (size_t)-1) {
	srcLen = encodingPtr->lengthProc(src);
    }
    if (statePtr == NULL) {
	flags |= TCL_ENCODING_START | TCL_ENCODING_END;
	statePtr = &state;
    }
    if (srcReadPtr == NULL) {
................................................................................
 */

char *
Tcl_UtfToExternalDString(
    Tcl_Encoding encoding,	/* The encoding for the converted string, or
				 * NULL for the default system encoding. */
    const char *src,		/* Source string in UTF-8. */
    size_t srcLen,		/* Source string length in bytes, or (size_t)-1 for
				 * strlen(). */
    Tcl_DString *dstPtr)	/* Uninitialized or free DString in which the
				 * converted string is stored. */
{
    char *dst;
    Tcl_EncodingState state;
    const Encoding *encodingPtr;
................................................................................
    if (encoding == NULL) {
	encoding = systemEncoding;
    }
    encodingPtr = (Encoding *) encoding;

    if (src == NULL) {
	srcLen = 0;
    } else if (srcLen == (size_t)-1) {
	srcLen = strlen(src);
    }
    flags = TCL_ENCODING_START | TCL_ENCODING_END;
    while (1) {
	result = encodingPtr->fromUtfProc(encodingPtr->clientData, src,
		srcLen, flags, &state, dst, dstLen, &srcRead, &dstWrote,
		&dstChars);
................................................................................

int
Tcl_UtfToExternal(
    Tcl_Interp *interp,		/* Interp for error return, if not NULL. */
    Tcl_Encoding encoding,	/* The encoding for the converted string, or
				 * NULL for the default system encoding. */
    const char *src,		/* Source string in UTF-8. */
    size_t srcLen,		/* Source string length in bytes, or (size_t)-1
				 * for strlen(). */
    int flags,			/* Conversion control flags. */
    Tcl_EncodingState *statePtr,/* Place for conversion routine to store state
				 * information used during a piecewise
				 * conversion. Contents of statePtr are
				 * initialized and/or reset by conversion
				 * routine under control of flags argument. */
................................................................................
    if (encoding == NULL) {
	encoding = systemEncoding;
    }
    encodingPtr = (Encoding *) encoding;

    if (src == NULL) {
	srcLen = 0;
    } else if (srcLen == (size_t)-1) {
	srcLen = strlen(src);
    }
    if (statePtr == NULL) {
	flags |= TCL_ENCODING_START | TCL_ENCODING_END;
	statePtr = &state;
    }
    if (srcReadPtr == NULL) {
................................................................................
    while (1) {
	int argc;
	const char **argv;
	char *line;
	Tcl_DString lineString;

	Tcl_DStringInit(&lineString);
	if (Tcl_Gets(chan, &lineString) == (size_t)-1) {
	    break;
	}
	line = Tcl_DStringValue(&lineString);
	if (Tcl_SplitList(NULL, line, &argc, &argv) != TCL_OK) {
	    Tcl_DStringFree(&lineString);
	    continue;
	}






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 */

char *
Tcl_ExternalToUtfDString(
    Tcl_Encoding encoding,	/* The encoding for the source string, or NULL
				 * for the default system encoding. */
    const char *src,		/* Source string in specified encoding. */
    size_t srcLen,		/* Source string length in bytes, or -1 for
				 * encoding-specific string length. */
    Tcl_DString *dstPtr)	/* Uninitialized or free DString in which the
				 * converted string is stored. */
{
    char *dst;
    Tcl_EncodingState state;
    const Encoding *encodingPtr;
................................................................................
    if (encoding == NULL) {
	encoding = systemEncoding;
    }
    encodingPtr = (Encoding *) encoding;

    if (src == NULL) {
	srcLen = 0;
    } else if (srcLen == TCL_AUTO_LENGTH) {
	srcLen = encodingPtr->lengthProc(src);
    }

    flags = TCL_ENCODING_START | TCL_ENCODING_END;

    while (1) {
	result = encodingPtr->toUtfProc(encodingPtr->clientData, src, srcLen,
................................................................................

int
Tcl_ExternalToUtf(
    Tcl_Interp *interp,		/* Interp for error return, if not NULL. */
    Tcl_Encoding encoding,	/* The encoding for the source string, or NULL
				 * for the default system encoding. */
    const char *src,		/* Source string in specified encoding. */
    size_t srcLen,		/* Source string length in bytes, or -1
				 * for encoding-specific string length. */
    int flags,			/* Conversion control flags. */
    Tcl_EncodingState *statePtr,/* Place for conversion routine to store state
				 * information used during a piecewise
				 * conversion. Contents of statePtr are
				 * initialized and/or reset by conversion
				 * routine under control of flags argument. */
................................................................................
    if (encoding == NULL) {
	encoding = systemEncoding;
    }
    encodingPtr = (Encoding *) encoding;

    if (src == NULL) {
	srcLen = 0;
    } else if (srcLen == TCL_AUTO_LENGTH) {
	srcLen = encodingPtr->lengthProc(src);
    }
    if (statePtr == NULL) {
	flags |= TCL_ENCODING_START | TCL_ENCODING_END;
	statePtr = &state;
    }
    if (srcReadPtr == NULL) {
................................................................................
 */

char *
Tcl_UtfToExternalDString(
    Tcl_Encoding encoding,	/* The encoding for the converted string, or
				 * NULL for the default system encoding. */
    const char *src,		/* Source string in UTF-8. */
    size_t srcLen,		/* Source string length in bytes, or -1 for
				 * strlen(). */
    Tcl_DString *dstPtr)	/* Uninitialized or free DString in which the
				 * converted string is stored. */
{
    char *dst;
    Tcl_EncodingState state;
    const Encoding *encodingPtr;
................................................................................
    if (encoding == NULL) {
	encoding = systemEncoding;
    }
    encodingPtr = (Encoding *) encoding;

    if (src == NULL) {
	srcLen = 0;
    } else if (srcLen == TCL_AUTO_LENGTH) {
	srcLen = strlen(src);
    }
    flags = TCL_ENCODING_START | TCL_ENCODING_END;
    while (1) {
	result = encodingPtr->fromUtfProc(encodingPtr->clientData, src,
		srcLen, flags, &state, dst, dstLen, &srcRead, &dstWrote,
		&dstChars);
................................................................................

int
Tcl_UtfToExternal(
    Tcl_Interp *interp,		/* Interp for error return, if not NULL. */
    Tcl_Encoding encoding,	/* The encoding for the converted string, or
				 * NULL for the default system encoding. */
    const char *src,		/* Source string in UTF-8. */
    size_t srcLen,		/* Source string length in bytes, or -1
				 * for strlen(). */
    int flags,			/* Conversion control flags. */
    Tcl_EncodingState *statePtr,/* Place for conversion routine to store state
				 * information used during a piecewise
				 * conversion. Contents of statePtr are
				 * initialized and/or reset by conversion
				 * routine under control of flags argument. */
................................................................................
    if (encoding == NULL) {
	encoding = systemEncoding;
    }
    encodingPtr = (Encoding *) encoding;

    if (src == NULL) {
	srcLen = 0;
    } else if (srcLen == TCL_AUTO_LENGTH) {
	srcLen = strlen(src);
    }
    if (statePtr == NULL) {
	flags |= TCL_ENCODING_START | TCL_ENCODING_END;
	statePtr = &state;
    }
    if (srcReadPtr == NULL) {
................................................................................
    while (1) {
	int argc;
	const char **argv;
	char *line;
	Tcl_DString lineString;

	Tcl_DStringInit(&lineString);
	if (Tcl_Gets(chan, &lineString) == TCL_IO_FAILURE) {
	    break;
	}
	line = Tcl_DStringValue(&lineString);
	if (Tcl_SplitList(NULL, line, &argc, &argv) != TCL_OK) {
	    Tcl_DStringFree(&lineString);
	    continue;
	}

Changes to generic/tclEnv.c.

213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
...
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
...
413
414
415
416
417
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419
420
421
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423
424
425
426
427
...
518
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520
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522
523
524
525
526
527
528
529
530
531
532
     * exist, enlarge the array if necessary to make room. If the name exists,
     * free its old entry.
     */

    Tcl_MutexLock(&envMutex);
    index = TclpFindVariable(name, &length);

    if (index == (size_t)-1) {
#ifndef USE_PUTENV
	/*
	 * We need to handle the case where the environment may be changed
	 * outside our control. ourEnvironSize is only valid if the current
	 * environment is the one we allocated. [Bug 979640]
	 */

................................................................................

    /*
     * Watch out for versions of putenv that copy the string (e.g. VC++). In
     * this case we need to free the string immediately. Otherwise update the
     * string in the cache.
     */

    if ((index != (size_t)-1) && (environ[index] == p)) {
	ReplaceString(oldValue, p);
#ifdef HAVE_PUTENV_THAT_COPIES
    } else {
	/*
	 * This putenv() copies instead of taking ownership.
	 */

................................................................................
    index = TclpFindVariable(name, &length);

    /*
     * First make sure that the environment variable exists to avoid doing
     * needless work and to avoid recursion on the unset.
     */

    if (index == (size_t)-1) {
	Tcl_MutexUnlock(&envMutex);
	return;
    }

    /*
     * Remember the old value so we can free it if Tcl created the string.
     */
................................................................................
{
    size_t length, index;
    const char *result;

    Tcl_MutexLock(&envMutex);
    index = TclpFindVariable(name, &length);
    result = NULL;
    if (index != (size_t)-1) {
	Tcl_DString envStr;

	result = Tcl_ExternalToUtfDString(NULL, environ[index], -1, &envStr);
	result += length;
	if (*result == '=') {
	    result++;
	    Tcl_DStringInit(valuePtr);






|







 







|







 







|







 







|







213
214
215
216
217
218
219
220
221
222
223
224
225
226
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...
297
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300
301
302
303
304
305
306
307
308
309
310
311
...
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
...
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
     * exist, enlarge the array if necessary to make room. If the name exists,
     * free its old entry.
     */

    Tcl_MutexLock(&envMutex);
    index = TclpFindVariable(name, &length);

    if (index == TCL_AUTO_LENGTH) {
#ifndef USE_PUTENV
	/*
	 * We need to handle the case where the environment may be changed
	 * outside our control. ourEnvironSize is only valid if the current
	 * environment is the one we allocated. [Bug 979640]
	 */

................................................................................

    /*
     * Watch out for versions of putenv that copy the string (e.g. VC++). In
     * this case we need to free the string immediately. Otherwise update the
     * string in the cache.
     */

    if ((index != TCL_AUTO_LENGTH) && (environ[index] == p)) {
	ReplaceString(oldValue, p);
#ifdef HAVE_PUTENV_THAT_COPIES
    } else {
	/*
	 * This putenv() copies instead of taking ownership.
	 */

................................................................................
    index = TclpFindVariable(name, &length);

    /*
     * First make sure that the environment variable exists to avoid doing
     * needless work and to avoid recursion on the unset.
     */

    if (index == TCL_AUTO_LENGTH) {
	Tcl_MutexUnlock(&envMutex);
	return;
    }

    /*
     * Remember the old value so we can free it if Tcl created the string.
     */
................................................................................
{
    size_t length, index;
    const char *result;

    Tcl_MutexLock(&envMutex);
    index = TclpFindVariable(name, &length);
    result = NULL;
    if (index != TCL_AUTO_LENGTH) {
	Tcl_DString envStr;

	result = Tcl_ExternalToUtfDString(NULL, environ[index], -1, &envStr);
	result += length;
	if (*result == '=') {
	    result++;
	    Tcl_DStringInit(valuePtr);

Changes to generic/tclIO.c.

3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
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4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
....
4105
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4107
4108
4109
4110
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4112
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....
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4192
....
4514
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4528
....
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4542
4543
....
5582
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5589
5590
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5592
5593
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....
5623
5624
5625
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....
5733
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....
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
 *----------------------------------------------------------------------
 */

size_t
Tcl_Write(
    Tcl_Channel chan,		/* The channel to buffer output for. */
    const char *src,		/* Data to queue in output buffer. */
    size_t srcLen)			/* Length of data in bytes, or (size_t)-1 for
				 * strlen(). */
{
    /*
     * Always use the topmost channel of the stack
     */

    Channel *chanPtr;
    ChannelState *statePtr;	/* State info for channel */

    statePtr = ((Channel *) chan)->state;
    chanPtr = statePtr->topChanPtr;

    if (CheckChannelErrors(statePtr, TCL_WRITABLE) != 0) {
	return -1;
    }

    if (srcLen == (size_t)-1) {
	srcLen = strlen(src);
    }
    if (WriteBytes(chanPtr, src, srcLen) == -1) {
	return -1;
    }
    return srcLen;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
{
    Channel *chanPtr = (Channel *) chan;
    ChannelState *statePtr = chanPtr->state;	/* State info for channel */
    int result;
    Tcl_Obj *objPtr;

    if (CheckChannelErrors(statePtr, TCL_WRITABLE) != 0) {
	return (size_t)-1;
    }

    chanPtr = statePtr->topChanPtr;

    if (len == (size_t)-1) {
	len = strlen(src);
    }
    if (statePtr->encoding) {
	return WriteChars(chanPtr, src, len);
    }

    /*
................................................................................
    const char *src;
    size_t srcLen;

    statePtr = ((Channel *) chan)->state;
    chanPtr = statePtr->topChanPtr;

    if (CheckChannelErrors(statePtr, TCL_WRITABLE) != 0) {
	return (size_t)-1;
    }
    if (statePtr->encoding == NULL) {
	src = (char *) TclGetByteArrayFromObj(objPtr, &srcLen);
	return WriteBytes(chanPtr, src, srcLen);
    } else {
	src = TclGetStringFromObj(objPtr, &srcLen);
	return WriteChars(chanPtr, src, srcLen);
................................................................................
    ChannelBuffer *bufPtr;
    int inEofChar, skip, copiedTotal, oldLength, oldFlags, oldRemoved;
    Tcl_Encoding encoding;
    char *dst, *dstEnd, *eol, *eof;
    Tcl_EncodingState oldState;

    if (CheckChannelErrors(statePtr, TCL_READABLE) != 0) {
	return (size_t)-1;
    }

    /*
     * If we're sitting ready to read the eofchar, there's no need to
     * do it.
     */

................................................................................
    if (GotFlag(statePtr, CHANNEL_STICKY_EOF)) {
	SetFlag(statePtr, CHANNEL_EOF);
	assert(statePtr->inputEncodingFlags & TCL_ENCODING_END);
	assert(!GotFlag(statePtr, CHANNEL_BLOCKED|INPUT_SAW_CR));

	/* TODO: Do we need this? */
	UpdateInterest(chanPtr);
	return (size_t)-1;
    }

    /*
     * A binary version of Tcl_GetsObj. This could also handle encodings that
     * are ascii-7 pure (iso8859, utf-8, ...) with a final encoding conversion
     * done on objPtr.
     */
................................................................................
    /*
     * This operation should occur at the top of a channel stack.
     */

    chanPtr = statePtr->topChanPtr;

    if (CheckChannelErrors(statePtr, TCL_READABLE) != 0) {
	return (size_t)-1;
    }

    return DoRead(chanPtr, dst, bytesToRead, 0);
}
 
/*
 *----------------------------------------------------------------------
................................................................................
    Channel *chanPtr = (Channel *) chan;
    ChannelState *statePtr = chanPtr->state;
				/* State info for channel */
    int copied = 0;

    assert(bytesToRead > 0);
    if (CheckChannelErrors(statePtr, TCL_READABLE | CHANNEL_RAW_MODE) != 0) {
	return (size_t)-1;
    }

    /*
     * First read bytes from the push-back buffers.
     */

    while (chanPtr->inQueueHead && bytesToRead > 0) {
................................................................................
 */

size_t
Tcl_ReadChars(
    Tcl_Channel chan,		/* The channel to read. */
    Tcl_Obj *objPtr,		/* Input data is stored in this object. */
    size_t toRead,		/* Maximum number of characters to store, or
				 * (size_t)-1 to read all available data (up to EOF or
				 * when channel blocks). */
    int appendFlag)		/* If non-zero, data read from the channel
				 * will be appended to the object. Otherwise,
				 * the data will replace the existing contents
				 * of the object. */
{
    Channel *chanPtr = (Channel *) chan;
................................................................................
 */

static int
DoReadChars(
    Channel *chanPtr,		/* The channel to read. */
    Tcl_Obj *objPtr,		/* Input data is stored in this object. */
    size_t toRead,			/* Maximum number of characters to store, or
				 * (size_t)-1 to read all available data (up to EOF or
				 * when channel blocks). */
    int appendFlag)		/* If non-zero, data read from the channel
				 * will be appended to the object. Otherwise,
				 * the data will replace the existing contents
				 * of the object. */
{
    ChannelState *statePtr = chanPtr->state;






|













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|



|







 







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|







 







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|







 







|







 







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|







3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
....
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
....
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
....
4514
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
4540
4541
4542
4543
....
5582
5583
5584
5585
5586
5587
5588
5589
5590
5591
5592
5593
5594
5595
5596
....
5623
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
....
5733
5734
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
....
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
 *----------------------------------------------------------------------
 */

size_t
Tcl_Write(
    Tcl_Channel chan,		/* The channel to buffer output for. */
    const char *src,		/* Data to queue in output buffer. */
    size_t srcLen)			/* Length of data in bytes, or -1 for
				 * strlen(). */
{
    /*
     * Always use the topmost channel of the stack
     */

    Channel *chanPtr;
    ChannelState *statePtr;	/* State info for channel */

    statePtr = ((Channel *) chan)->state;
    chanPtr = statePtr->topChanPtr;

    if (CheckChannelErrors(statePtr, TCL_WRITABLE) != 0) {
	return TCL_IO_FAILURE;
    }

    if (srcLen == TCL_AUTO_LENGTH) {
	srcLen = strlen(src);
    }
    if (WriteBytes(chanPtr, src, srcLen) == -1) {
	return TCL_IO_FAILURE;
    }
    return srcLen;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
{
    Channel *chanPtr = (Channel *) chan;
    ChannelState *statePtr = chanPtr->state;	/* State info for channel */
    int result;
    Tcl_Obj *objPtr;

    if (CheckChannelErrors(statePtr, TCL_WRITABLE) != 0) {
	return TCL_IO_FAILURE;
    }

    chanPtr = statePtr->topChanPtr;

    if (len == TCL_AUTO_LENGTH) {
	len = strlen(src);
    }
    if (statePtr->encoding) {
	return WriteChars(chanPtr, src, len);
    }

    /*
................................................................................
    const char *src;
    size_t srcLen;

    statePtr = ((Channel *) chan)->state;
    chanPtr = statePtr->topChanPtr;

    if (CheckChannelErrors(statePtr, TCL_WRITABLE) != 0) {
	return TCL_IO_FAILURE;
    }
    if (statePtr->encoding == NULL) {
	src = (char *) TclGetByteArrayFromObj(objPtr, &srcLen);
	return WriteBytes(chanPtr, src, srcLen);
    } else {
	src = TclGetStringFromObj(objPtr, &srcLen);
	return WriteChars(chanPtr, src, srcLen);
................................................................................
    ChannelBuffer *bufPtr;
    int inEofChar, skip, copiedTotal, oldLength, oldFlags, oldRemoved;
    Tcl_Encoding encoding;
    char *dst, *dstEnd, *eol, *eof;
    Tcl_EncodingState oldState;

    if (CheckChannelErrors(statePtr, TCL_READABLE) != 0) {
	return TCL_IO_FAILURE;
    }

    /*
     * If we're sitting ready to read the eofchar, there's no need to
     * do it.
     */

................................................................................
    if (GotFlag(statePtr, CHANNEL_STICKY_EOF)) {
	SetFlag(statePtr, CHANNEL_EOF);
	assert(statePtr->inputEncodingFlags & TCL_ENCODING_END);
	assert(!GotFlag(statePtr, CHANNEL_BLOCKED|INPUT_SAW_CR));

	/* TODO: Do we need this? */
	UpdateInterest(chanPtr);
	return TCL_IO_FAILURE;
    }

    /*
     * A binary version of Tcl_GetsObj. This could also handle encodings that
     * are ascii-7 pure (iso8859, utf-8, ...) with a final encoding conversion
     * done on objPtr.
     */
................................................................................
    /*
     * This operation should occur at the top of a channel stack.
     */

    chanPtr = statePtr->topChanPtr;

    if (CheckChannelErrors(statePtr, TCL_READABLE) != 0) {
	return TCL_IO_FAILURE;
    }

    return DoRead(chanPtr, dst, bytesToRead, 0);
}
 
/*
 *----------------------------------------------------------------------
................................................................................
    Channel *chanPtr = (Channel *) chan;
    ChannelState *statePtr = chanPtr->state;
				/* State info for channel */
    int copied = 0;

    assert(bytesToRead > 0);
    if (CheckChannelErrors(statePtr, TCL_READABLE | CHANNEL_RAW_MODE) != 0) {
	return TCL_IO_FAILURE;
    }

    /*
     * First read bytes from the push-back buffers.
     */

    while (chanPtr->inQueueHead && bytesToRead > 0) {
................................................................................
 */

size_t
Tcl_ReadChars(
    Tcl_Channel chan,		/* The channel to read. */
    Tcl_Obj *objPtr,		/* Input data is stored in this object. */
    size_t toRead,		/* Maximum number of characters to store, or
				 * -1 to read all available data (up to EOF or
				 * when channel blocks). */
    int appendFlag)		/* If non-zero, data read from the channel
				 * will be appended to the object. Otherwise,
				 * the data will replace the existing contents
				 * of the object. */
{
    Channel *chanPtr = (Channel *) chan;
................................................................................
 */

static int
DoReadChars(
    Channel *chanPtr,		/* The channel to read. */
    Tcl_Obj *objPtr,		/* Input data is stored in this object. */
    size_t toRead,			/* Maximum number of characters to store, or
				 * -1 to read all available data (up to EOF or
				 * when channel blocks). */
    int appendFlag)		/* If non-zero, data read from the channel
				 * will be appended to the object. Otherwise,
				 * the data will replace the existing contents
				 * of the object. */
{
    ChannelState *statePtr = chanPtr->state;

Changes to generic/tclInt.h.

4166
4167
4168
4169
4170
4171
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4173
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4181
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4184
4185
4186
4187
4188
4189
4190
4191
4192
    (objPtr)->length   = 0; \
    (objPtr)->typePtr  = NULL; \
    TCL_DTRACE_OBJ_CREATE(objPtr)

/*
 * Invalidate the string rep first so we can use the bytes value for our
 * pointer chain, and signal an obj deletion (as opposed to shimmering) with
 * 'length == (size_t)-1'.
 * Use empty 'if ; else' to handle use in unbraced outer if/else conditions.
 */

# define TclDecrRefCount(objPtr) \
    if ((objPtr)->refCount-- > 1) ; else { \
	if (!(objPtr)->typePtr || !(objPtr)->typePtr->freeIntRepProc) { \
	    TCL_DTRACE_OBJ_FREE(objPtr); \
	    if ((objPtr)->bytes \
		    && ((objPtr)->bytes != &tclEmptyString)) { \
		Tcl_Free((objPtr)->bytes); \
	    } \
	    (objPtr)->length = (size_t)-1; \
	    TclFreeObjStorage(objPtr); \
	    TclIncrObjsFreed(); \
	} else { \
	    TclFreeObj(objPtr); \
	} \
    }







|











|







4166
4167
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4171
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4188
4189
4190
4191
4192
    (objPtr)->length   = 0; \
    (objPtr)->typePtr  = NULL; \
    TCL_DTRACE_OBJ_CREATE(objPtr)

/*
 * Invalidate the string rep first so we can use the bytes value for our
 * pointer chain, and signal an obj deletion (as opposed to shimmering) with
 * 'length == TCL_AUTO_LENGTH'.
 * Use empty 'if ; else' to handle use in unbraced outer if/else conditions.
 */

# define TclDecrRefCount(objPtr) \
    if ((objPtr)->refCount-- > 1) ; else { \
	if (!(objPtr)->typePtr || !(objPtr)->typePtr->freeIntRepProc) { \
	    TCL_DTRACE_OBJ_FREE(objPtr); \
	    if ((objPtr)->bytes \
		    && ((objPtr)->bytes != &tclEmptyString)) { \
		Tcl_Free((objPtr)->bytes); \
	    } \
	    (objPtr)->length = TCL_AUTO_LENGTH; \
	    TclFreeObjStorage(objPtr); \
	    TclIncrObjsFreed(); \
	} else { \
	    TclFreeObj(objPtr); \
	} \
    }

Changes to generic/tclStubInit.c.

111
112
113
114
115
116
117



118
119
120
121
122
123
124
125
126




127
128
129
130
131
132
133
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135
136
char *
Tcl_WinUtfToTChar(
    const char *string,
    size_t len,
    Tcl_DString *dsPtr)
{
    Tcl_DStringInit(dsPtr);



    return (char *)Tcl_UtfToUniCharDString(string, len, dsPtr);
}

char *
Tcl_WinTCharToUtf(
    const char *string,
    size_t len,
    Tcl_DString *dsPtr)
{




    if (len != (size_t)-1) {
	len /= 2;
    } else if (len == -1) {
	len = wcslen((wchar_t *)string);
    }
    Tcl_DStringInit(dsPtr);
    return Tcl_UniCharToUtfDString((Tcl_UniChar *)string, len, dsPtr);
}

#if defined(TCL_WIDE_INT_IS_LONG)






>
>
>









>
>
>
>
|

|







111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
char *
Tcl_WinUtfToTChar(
    const char *string,
    size_t len,
    Tcl_DString *dsPtr)
{
    Tcl_DStringInit(dsPtr);
    if (!string) {
	return NULL;
    }
    return (char *)Tcl_UtfToUniCharDString(string, len, dsPtr);
}

char *
Tcl_WinTCharToUtf(
    const char *string,
    size_t len,
    Tcl_DString *dsPtr)
{
    Tcl_DStringInit(dsPtr);
    if (!string) {
	return NULL;
    }
    if (len != TCL_AUTO_LENGTH) {
	len /= 2;
    } else {
	len = wcslen((wchar_t *)string);
    }
    Tcl_DStringInit(dsPtr);
    return Tcl_UniCharToUtfDString((Tcl_UniChar *)string, len, dsPtr);
}

#if defined(TCL_WIDE_INT_IS_LONG)

Changes to generic/tclUtf.c.

421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
...
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
...
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
				 * appended to this previously initialized
				 * DString. */
{
    Tcl_UniChar ch = 0, *w, *wString;
    const char *p, *end;
    size_t oldLength;

    if (length == (size_t)-1) {
	length = strlen(src);
    }

    /*
     * Unicode string length in Tcl_UniChars will be <= UTF-8 string length in
     * bytes.
     */
................................................................................
    /*
     * The separate implementations are faster.
     *
     * Since this is a time-sensitive function, we also do the check for the
     * single-byte char case specially.
     */

    if (length == (size_t)-1) {
	while (*src != '\0') {
	    src += TclUtfToUniChar(src, &ch);
	    i++;
	}
    } else {
	register const char *endPtr = src + length - 4;

................................................................................
    register size_t index)		/* The position of the desired character. */
{
    Tcl_UniChar ch = 0;
#if TCL_UTF_MAX <= 4
    int len = 1;
#endif

    if (index != (size_t)-1) {
	while (index--) {
#if TCL_UTF_MAX <= 4
	    src += (len = TclUtfToUniChar(src, &ch));
#else
	    src += TclUtfToUniChar(src, &ch);
#endif
	}






|







 







|







 







|







421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
...
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
...
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
				 * appended to this previously initialized
				 * DString. */
{
    Tcl_UniChar ch = 0, *w, *wString;
    const char *p, *end;
    size_t oldLength;

    if (length == TCL_AUTO_LENGTH) {
	length = strlen(src);
    }

    /*
     * Unicode string length in Tcl_UniChars will be <= UTF-8 string length in
     * bytes.
     */
................................................................................
    /*
     * The separate implementations are faster.
     *
     * Since this is a time-sensitive function, we also do the check for the
     * single-byte char case specially.
     */

    if (length == TCL_AUTO_LENGTH) {
	while (*src != '\0') {
	    src += TclUtfToUniChar(src, &ch);
	    i++;
	}
    } else {
	register const char *endPtr = src + length - 4;

................................................................................
    register size_t index)		/* The position of the desired character. */
{
    Tcl_UniChar ch = 0;
#if TCL_UTF_MAX <= 4
    int len = 1;
#endif

    if (index != TCL_AUTO_LENGTH) {
	while (index--) {
#if TCL_UTF_MAX <= 4
	    src += (len = TclUtfToUniChar(src, &ch));
#else
	    src += TclUtfToUniChar(src, &ch);
#endif
	}

Changes to generic/tclUtil.c.

386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
...
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
....
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
....
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
....
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
....
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
....
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
....
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
TclMaxListLength(
    const char *bytes,
    size_t numBytes,
    const char **endPtr)
{
    size_t count = 0;

    if ((numBytes == 0) || ((numBytes == (size_t)-1) && (*bytes == '\0'))) {
	/* Empty string case - quick exit */
	goto done;
    }

    /*
     * No list element before leading white space.
     */
................................................................................
    count += 1 - TclIsSpaceProc(*bytes);

    /*
     * Count white space runs as potential element separators.
     */

    while (numBytes) {
	if ((numBytes == (size_t)-1) && (*bytes == '\0')) {
	    break;
	}
	if (TclIsSpaceProc(*bytes)) {
	    /*
	     * Space run started; bump count.
	     */

	    count++;
	    do {
		bytes++;
		numBytes -= (numBytes != (size_t)-1);
	    } while (numBytes && TclIsSpaceProc(*bytes));
	    if ((numBytes == 0) || ((numBytes == (size_t)-1) && (*bytes == '\0'))) {
		break;
	    }

	    /*
	     * (*bytes) is non-space; return to counting state.
	     */
	}
	bytes++;
	numBytes -= (numBytes != (size_t)-1);
    }

    /*
     * No list element following trailing white space.
     */

    count -= TclIsSpaceProc(bytes[-1]);
................................................................................
 *
 *----------------------------------------------------------------------
 */

size_t
TclScanElement(
    const char *src,		/* String to convert to Tcl list element. */
    size_t length,		/* Number of bytes in src, or (size_t)-1. */
    char *flagPtr)		/* Where to store information to guide
				 * Tcl_ConvertElement. */
{
    const char *p = src;
    int nestingLevel = 0;	/* Brace nesting count */
    int forbidNone = 0;		/* Do not permit CONVERT_NONE mode. Something
				 * needs protection or escape. */
................................................................................
 *
 *----------------------------------------------------------------------
 */

size_t
Tcl_ConvertCountedElement(
    register const char *src,	/* Source information for list element. */
    size_t length,		/* Number of bytes in src, or (size_t)-1. */
    char *dst,			/* Place to put list-ified element. */
    int flags)			/* Flags produced by Tcl_ScanElement. */
{
    size_t numBytes = TclConvertElement(src, length, dst, flags);
    dst[numBytes] = '\0';
    return numBytes;
}
................................................................................
 *
 *----------------------------------------------------------------------
 */

size_t
TclConvertElement(
    register const char *src,	/* Source information for list element. */
    size_t length,		/* Number of bytes in src, or (size_t)-1. */
    char *dst,			/* Place to put list-ified element. */
    int flags)			/* Flags produced by Tcl_ScanElement. */
{
    int conversion = flags & CONVERT_MASK;
    char *p = dst;

    /*
................................................................................
	conversion = CONVERT_ESCAPE;
    }

    /*
     * No matter what the caller demands, empty string must be braced!
     */

    if ((src == NULL) || (length == 0) || (*src == '\0' && length == (size_t)-1)) {
	src = &tclEmptyString;
	length = 0;
	conversion = CONVERT_BRACE;
    }

    /*
     * Escape leading hash as needed and requested.
................................................................................

char *
Tcl_DStringAppend(
    Tcl_DString *dsPtr,		/* Structure describing dynamic string. */
    const char *bytes,		/* String to append. If length is -1 then this
				 * must be null-terminated. */
    size_t length)			/* Number of bytes from "bytes" to append. If
				 * (size_t)-1, then append all of bytes, up to null
				 * at end. */
{
    size_t newSize;

    if (length == (size_t)-1) {
	length = strlen(bytes);
    }
    newSize = length + dsPtr->length;

    /*
     * Allocate a larger buffer for the string if the current one isn't large
     * enough. Allocate extra space in the new buffer so that there will be
................................................................................
	dsPtr->spaceAvl = newSize * 2;
	if (dsPtr->string == dsPtr->staticSpace) {
	    char *newString = Tcl_Alloc(dsPtr->spaceAvl);

	    memcpy(newString, dsPtr->string, dsPtr->length);
	    dsPtr->string = newString;
	} else {
	    size_t offset = (size_t)-1;

	    /* See [16896d49fd] */
	    if (bytes >= dsPtr->string
		    && bytes <= dsPtr->string + dsPtr->length) {
		offset = bytes - dsPtr->string;
	    }

	    dsPtr->string = Tcl_Realloc(dsPtr->string, dsPtr->spaceAvl);

	    if (offset != (size_t)-1) {
		bytes = dsPtr->string + offset;
	    }
	}
    }

    /*
     * Copy the new string into the buffer at the end of the old one.






|







 







|










|

|








|







 







|







 







|







 







|







 







|







 







|




|







 







|









|







386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
...
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
....
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
....
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
....
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
....
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
....
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
....
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
TclMaxListLength(
    const char *bytes,
    size_t numBytes,
    const char **endPtr)
{
    size_t count = 0;

    if ((numBytes == 0) || ((numBytes == TCL_AUTO_LENGTH) && (*bytes == '\0'))) {
	/* Empty string case - quick exit */
	goto done;
    }

    /*
     * No list element before leading white space.
     */
................................................................................
    count += 1 - TclIsSpaceProc(*bytes);

    /*
     * Count white space runs as potential element separators.
     */

    while (numBytes) {
	if ((numBytes == TCL_AUTO_LENGTH) && (*bytes == '\0')) {
	    break;
	}
	if (TclIsSpaceProc(*bytes)) {
	    /*
	     * Space run started; bump count.
	     */

	    count++;
	    do {
		bytes++;
		numBytes -= (numBytes != TCL_AUTO_LENGTH);
	    } while (numBytes && TclIsSpaceProc(*bytes));
	    if ((numBytes == 0) || ((numBytes == TCL_AUTO_LENGTH) && (*bytes == '\0'))) {
		break;
	    }

	    /*
	     * (*bytes) is non-space; return to counting state.
	     */
	}
	bytes++;
	numBytes -= (numBytes != TCL_AUTO_LENGTH);
    }

    /*
     * No list element following trailing white space.
     */

    count -= TclIsSpaceProc(bytes[-1]);
................................................................................
 *
 *----------------------------------------------------------------------
 */

size_t
TclScanElement(
    const char *src,		/* String to convert to Tcl list element. */
    size_t length,		/* Number of bytes in src, or -1. */
    char *flagPtr)		/* Where to store information to guide
				 * Tcl_ConvertElement. */
{
    const char *p = src;
    int nestingLevel = 0;	/* Brace nesting count */
    int forbidNone = 0;		/* Do not permit CONVERT_NONE mode. Something
				 * needs protection or escape. */
................................................................................
 *
 *----------------------------------------------------------------------
 */

size_t
Tcl_ConvertCountedElement(
    register const char *src,	/* Source information for list element. */
    size_t length,		/* Number of bytes in src, or -1. */
    char *dst,			/* Place to put list-ified element. */
    int flags)			/* Flags produced by Tcl_ScanElement. */
{
    size_t numBytes = TclConvertElement(src, length, dst, flags);
    dst[numBytes] = '\0';
    return numBytes;
}
................................................................................
 *
 *----------------------------------------------------------------------
 */

size_t
TclConvertElement(
    register const char *src,	/* Source information for list element. */
    size_t length,		/* Number of bytes in src, or -1. */
    char *dst,			/* Place to put list-ified element. */
    int flags)			/* Flags produced by Tcl_ScanElement. */
{
    int conversion = flags & CONVERT_MASK;
    char *p = dst;

    /*
................................................................................
	conversion = CONVERT_ESCAPE;
    }

    /*
     * No matter what the caller demands, empty string must be braced!
     */

    if ((src == NULL) || (length == 0) || (*src == '\0' && length == TCL_AUTO_LENGTH)) {
	src = &tclEmptyString;
	length = 0;
	conversion = CONVERT_BRACE;
    }

    /*
     * Escape leading hash as needed and requested.
................................................................................

char *
Tcl_DStringAppend(
    Tcl_DString *dsPtr,		/* Structure describing dynamic string. */
    const char *bytes,		/* String to append. If length is -1 then this
				 * must be null-terminated. */
    size_t length)			/* Number of bytes from "bytes" to append. If
				 * -1, then append all of bytes, up to null
				 * at end. */
{
    size_t newSize;

    if (length == TCL_AUTO_LENGTH) {
	length = strlen(bytes);
    }
    newSize = length + dsPtr->length;

    /*
     * Allocate a larger buffer for the string if the current one isn't large
     * enough. Allocate extra space in the new buffer so that there will be
................................................................................
	dsPtr->spaceAvl = newSize * 2;
	if (dsPtr->string == dsPtr->staticSpace) {
	    char *newString = Tcl_Alloc(dsPtr->spaceAvl);

	    memcpy(newString, dsPtr->string, dsPtr->length);
	    dsPtr->string = newString;
	} else {
	    size_t offset = TCL_AUTO_LENGTH;

	    /* See [16896d49fd] */
	    if (bytes >= dsPtr->string
		    && bytes <= dsPtr->string + dsPtr->length) {
		offset = bytes - dsPtr->string;
	    }

	    dsPtr->string = Tcl_Realloc(dsPtr->string, dsPtr->spaceAvl);

	    if (offset != TCL_AUTO_LENGTH) {
		bytes = dsPtr->string + offset;
	    }
	}
    }

    /*
     * Copy the new string into the buffer at the end of the old one.

Changes to generic/tclZlib.c.

1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
....
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
    if (zshPtr->streamEnd) {
	return TCL_OK;
    }

    (void) TclGetByteArrayFromObj(data, &existing);

    if (zshPtr->mode == TCL_ZLIB_STREAM_INFLATE) {
	if (count == (size_t)-1) {
	    /*
	     * The only safe thing to do is restict to 65k. We might cause a
	     * panic for out of memory if we just kept growing the buffer.
	     */

	    count = MAX_BUFFER_SIZE;
	}
................................................................................
		Tcl_DecrRefCount(zshPtr->currentInput);
		zshPtr->currentInput = 0;
	    }
	    inflateEnd(&zshPtr->stream);
	}
    } else {
	Tcl_ListObjLength(NULL, zshPtr->outData, &listLen);
	if (count == (size_t)-1) {
	    count = 0;
	    for (i=0; i<listLen; i++) {
		Tcl_ListObjIndex(NULL, zshPtr->outData, i, &itemObj);
		itemPtr = TclGetByteArrayFromObj(itemObj, &itemLen);
		if (i == 0) {
		    count += itemLen - zshPtr->outPos;
		} else {






|







 







|







1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
....
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
    if (zshPtr->streamEnd) {
	return TCL_OK;
    }

    (void) TclGetByteArrayFromObj(data, &existing);

    if (zshPtr->mode == TCL_ZLIB_STREAM_INFLATE) {
	if (count == TCL_AUTO_LENGTH) {
	    /*
	     * The only safe thing to do is restict to 65k. We might cause a
	     * panic for out of memory if we just kept growing the buffer.
	     */

	    count = MAX_BUFFER_SIZE;
	}
................................................................................
		Tcl_DecrRefCount(zshPtr->currentInput);
		zshPtr->currentInput = 0;
	    }
	    inflateEnd(&zshPtr->stream);
	}
    } else {
	Tcl_ListObjLength(NULL, zshPtr->outData, &listLen);
	if (count == TCL_AUTO_LENGTH) {
	    count = 0;
	    for (i=0; i<listLen; i++) {
		Tcl_ListObjIndex(NULL, zshPtr->outData, i, &itemObj);
		itemPtr = TclGetByteArrayFromObj(itemObj, &itemLen);
		if (i == 0) {
		    count += itemLen - zshPtr->outPos;
		} else {

Changes to win/tclWin32Dll.c.

462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
 *
 *---------------------------------------------------------------------------
 */

TCHAR *
Tcl_WinUtfToTChar(
    const char *string,		/* Source string in UTF-8. */
    size_t len,			/* Source string length in bytes, or (size_t)-1
				 * for strlen(). */
    Tcl_DString *dsPtr)		/* Uninitialized or free DString in which the
				 * converted string is stored. */
{
    Tcl_DStringInit(dsPtr);
    if (!string) {
	return (TCHAR *)Tcl_DStringValue(dsPtr);
    }
    return Tcl_UtfToUniCharDString(string, len, dsPtr);
}

char *
Tcl_WinTCharToUtf(
    const TCHAR *string,	/* Source string in Unicode. */
    size_t len,			/* Source string length in bytes, or (size_t)-1
				 * for platform-specific string length. */
    Tcl_DString *dsPtr)		/* Uninitialized or free DString in which the
				 * converted string is stored. */
{
    Tcl_DStringInit(dsPtr);
    if (!string) {
	return Tcl_DStringValue(dsPtr);
    }
    if (len != (size_t)-1) {
	len /= 2;
    } else if (len < 0) {
	len = wcslen(string);
    }
    return Tcl_UniCharToUtfDString(string, len, dsPtr);
}
 
/*
 *------------------------------------------------------------------------






|






|







|






|

|

|







462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
 *
 *---------------------------------------------------------------------------
 */

TCHAR *
Tcl_WinUtfToTChar(
    const char *string,		/* Source string in UTF-8. */
    size_t len,			/* Source string length in bytes, or -1
				 * for strlen(). */
    Tcl_DString *dsPtr)		/* Uninitialized or free DString in which the
				 * converted string is stored. */
{
    Tcl_DStringInit(dsPtr);
    if (!string) {
	return NULL;
    }
    return Tcl_UtfToUniCharDString(string, len, dsPtr);
}

char *
Tcl_WinTCharToUtf(
    const TCHAR *string,	/* Source string in Unicode. */
    size_t len,			/* Source string length in bytes, or -1
				 * for platform-specific string length. */
    Tcl_DString *dsPtr)		/* Uninitialized or free DString in which the
				 * converted string is stored. */
{
    Tcl_DStringInit(dsPtr);
    if (!string) {
	return NULL;
    }
    if (len != TCL_AUTO_LENGTH) {
	len /= 2;
    } else {
	len = wcslen(string);
    }
    return Tcl_UniCharToUtfDString(string, len, dsPtr);
}
 
/*
 *------------------------------------------------------------------------

Changes to win/tclWinPipe.c.

847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
 *
 *	Given a HANDLE to a child process, return the process id for that
 *	child process.
 *
 * Results:
 *	Returns the process id for the child process. If the pid was not known
 *	by Tcl, either because the pid was not created by Tcl or the child
 *	process has already been reaped, -1 is returned.
 *
 * Side effects:
 *	None.
 *
 *--------------------------------------------------------------------------
 */







|







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 *
 *	Given a HANDLE to a child process, return the process id for that
 *	child process.
 *
 * Results:
 *	Returns the process id for the child process. If the pid was not known
 *	by Tcl, either because the pid was not created by Tcl or the child
 *	process has already been reaped, (size_t)-1 is returned.
 *
 * Side effects:
 *	None.
 *
 *--------------------------------------------------------------------------
 */