Tcl Source Code

jobs:
  gcc:
    runs-on: ubuntu-22.04
    strategy:
      matrix:
        cfgopt:
          - ""
          - "CFLAGS=-DTCL_UTF_MAX=3"
          - "CFLAGS=-DTCL_NO_DEPRECATED=1"
          - "--disable-shared"
          - "--enable-symbols"
          - "--enable-symbols=mem"
          - "--enable-symbols=all"
    defaults:
      run:

      run:
        shell: msys2 {0}
        working-directory: win
    strategy:
      matrix:
        cfgopt:
          - ""
          - "CFLAGS=-DTCL_UTF_MAX=3"
          - "CFLAGS=-DTCL_NO_DEPRECATED=1"
          - "--disable-shared"
          - "--enable-symbols"
          - "--enable-symbols=mem"
          - "--enable-symbols=all"
    # Using powershell means we need to explicitly stop on failure
    steps:

# Testing on Linux GCC
    - name: "Linux/GCC/Shared"
      os: linux
      dist: focal
      compiler: gcc
      env:
        - BUILD_DIR=unix
    - name: "Linux/GCC/Shared: UTF_MAX=4"
      os: linux
      dist: focal
      compiler: gcc
      env:
        - BUILD_DIR=unix
        - CFGOPT=CFLAGS=-DTCL_UTF_MAX=4
    - name: "Linux/GCC/Shared: NO_DEPRECATED"
      os: linux
      dist: focal
      compiler: gcc
      env:
        - BUILD_DIR=unix
        - CFGOPT="CFLAGS=-DTCL_NO_DEPRECATED=1"

        - touch generic/tclStubInit.c generic/tclOOStubInit.c generic/tclOOScript.h
        - PATH="$PATH:$VCDIR"
        - cd ${BUILD_DIR}
      install: []
      script:
        - cmd.exe //C vcvarsall.bat x64 '&&' nmake '-f' makefile.vc all tcltest
        - cmd.exe //C vcvarsall.bat x64 '&&' nmake '-f' makefile.vc test
    - name: "Windows/MSVC/Shared: UTF_MAX=4"
      os: windows
      compiler: cl
      env: *vcenv
      before_install: *vcpreinst
      install: []
      script:
        - cmd.exe //C vcvarsall.bat x64 '&&' nmake 'OPTS=utf16' '-f' makefile.vc all tcltest
        - cmd.exe //C vcvarsall.bat x64 '&&' nmake 'OPTS=utf16' '-f' makefile.vc test
    - name: "Windows/MSVC/Shared: NO_DEPRECATED"
      os: windows
      compiler: cl
      env: *vcenv
      before_install: *vcpreinst
      install: []
      script:

      compiler: cl
      env: *vcenv
      before_install: *vcpreinst
      install: []
      script:
        - cmd.exe //C vcvarsall.bat x86 '&&' nmake '-f' makefile.vc all tcltest
        - cmd.exe //C vcvarsall.bat x86 '&&' nmake '-f' makefile.vc test
    - name: "Windows/MSVC-x86/Shared: UTF_MAX=4"
      os: windows
      compiler: cl
      env: *vcenv
      before_install: *vcpreinst
      install: []
      script:
        - cmd.exe //C vcvarsall.bat x86 '&&' nmake 'OPTS=utf16' '-f' makefile.vc all tcltest
        - cmd.exe //C vcvarsall.bat x86 '&&' nmake 'OPTS=utf16' '-f' makefile.vc test
    - name: "Windows/MSVC-x86/Shared: NO_DEPRECATED"
      os: windows
      compiler: cl
      env: *vcenv
      before_install: *vcpreinst
      install: []
      script:

      env:
        - BUILD_DIR=win
        - CFGOPT="--enable-64bit"
      before_install: &makepreinst
        - touch generic/tclStubInit.c generic/tclOOStubInit.c generic/tclOOScript.h
        - choco install -y make zip
        - cd ${BUILD_DIR}
    - name: "Windows/GCC/Shared: UTF_MAX=4"
      os: windows
      compiler: gcc
      env:
        - BUILD_DIR=win
        - CFGOPT="--enable-64bit CFLAGS=-DTCL_UTF_MAX=4"
      before_install: *makepreinst
    - name: "Windows/GCC/Shared: NO_DEPRECATED"
      os: windows
      compiler: gcc
      env:
        - BUILD_DIR=win
        - CFGOPT="--enable-64bit CFLAGS=-DTCL_NO_DEPRECATED=1"
      before_install: *makepreinst

# Test on Windows with GCC native (32-bit)
    - name: "Windows/GCC-x86/Shared"
      os: windows
      compiler: gcc
      env:
        - BUILD_DIR=win
      before_install: *makepreinst
    - name: "Windows/GCC-x86/Shared: UTF_MAX=4"
      os: windows
      compiler: gcc
      env:
        - BUILD_DIR=win
        - CFGOPT="CFLAGS=-DTCL_UTF_MAX=4"
      before_install: *makepreinst
    - name: "Windows/GCC-x86/Shared: NO_DEPRECATED"
      os: windows
      compiler: gcc
      env:
        - BUILD_DIR=win
        - CFGOPT="CFLAGS=-DTCL_NO_DEPRECATED=1"
      before_install: *makepreinst

typedef Tcl_UniChar chr;	/* The type itself. */
typedef int pchr;		/* What it promotes to. */
typedef unsigned uchr;		/* Unsigned type that will hold a chr. */
typedef int celt;		/* Type to hold chr, or NOCELT */
#define	NOCELT (-1)		/* Celt value which is not valid chr */
#define	CHR(c) (UCHAR(c))	/* Turn char literal into chr literal */
#define	DIGITVAL(c) ((c)-'0')	/* Turn chr digit into its value */
#if TCL_UTF_MAX > 3
#define	CHRBITS	32		/* Bits in a chr; must not use sizeof */
#define	CHR_MIN	0x00000000	/* Smallest and largest chr; the value */
#define	CHR_MAX	0x10FFFF	/* CHR_MAX-CHR_MIN+1 should fit in uchr */
#else
#define	CHRBITS	16		/* Bits in a chr; must not use sizeof */
#define	CHR_MIN	0x0000		/* Smallest and largest chr; the value */
#define	CHR_MAX	0xFFFF		/* CHR_MAX-CHR_MIN+1 should fit in uchr */
#endif

/*
 * Functions operating on chr.
 */

#define	iscalnum(x)	Tcl_UniCharIsAlnum(x)
#define	iscalpha(x)	Tcl_UniCharIsAlpha(x)

	    if (interp) {
		const char *nonbyte;
		int ucs4;

		irPtr = TclFetchInternalRep(objPtr, &tclByteArrayType);
		baPtr = GET_BYTEARRAY(irPtr);
		nonbyte = TclUtfAtIndex(Tcl_GetString(objPtr), baPtr->bad);
		TclUtfToUCS4(nonbyte, &ucs4);

		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"expected byte sequence but character %d "
			"was '%1s' (U+%06X)", baPtr->bad, nonbyte, ucs4));
		Tcl_SetErrorCode(interp, "TCL", "VALUE", "BYTES", NULL);
	    }
	    return NULL;

	    if (interp) {
		const char *nonbyte;
		int ucs4;

		irPtr = TclFetchInternalRep(objPtr, &tclByteArrayType);
		baPtr = GET_BYTEARRAY(irPtr);
		nonbyte = TclUtfAtIndex(Tcl_GetString(objPtr), baPtr->bad);
		TclUtfToUCS4(nonbyte, &ucs4);

		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"expected byte sequence but character %d "
			"was '%1s' (U+%06X)", baPtr->bad, nonbyte, ucs4));
		Tcl_SetErrorCode(interp, "TCL", "VALUE", "BYTES", NULL);
	    }
	    return NULL;

    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;

  badChar:
    if (pure) {
	ucs4 = c;
    } else {
	TclUtfToUCS4((const char *)(data - 1), &ucs4);
    }
    TclDecrRefCount(resultObj);
    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "invalid hexadecimal digit \"%c\" (U+%06X) at position %d",
	    ucs4, ucs4, (int) (data - datastart - 1)));
    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "INVALID", NULL);
    return TCL_ERROR;

    TclDecrRefCount(resultObj);
    return TCL_ERROR;

  badUu:
    if (pure) {
	ucs4 = c;
    } else {
	TclUtfToUCS4((const char *)(data - 1), &ucs4);
    }
    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "invalid uuencode character \"%c\" (U+%06X) at position %d",
	    ucs4, ucs4, (int) (data - datastart - 1)));
    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "INVALID", NULL);
    TclDecrRefCount(resultObj);
    return TCL_ERROR;

	ucs4 = c;
    } else {
	/* The decoder is byte-oriented. If we saw a byte that's not a
	 * valid member of the base64 alphabet, it could be the lead byte
	 * of a multi-byte character. */

	/* Safe because we know data is NUL-terminated */
	TclUtfToUCS4((const char *)(data - 1), &ucs4);
    }

    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "invalid base64 character \"%c\" (U+%06X) at position %d",
	    ucs4, ucs4, (int) (data - datastart - 1)));
    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "INVALID", NULL);
    TclDecrRefCount(resultObj);

	/*
	 * Convert character to Unicode for comparison purposes. If either
	 * string is at the terminating null, do a byte-wise comparison and
	 * bail out immediately.
	 */

	if ((*left != '\0') && (*right != '\0')) {
	    left += TclUtfToUCS4(left, &uniLeft);
	    right += TclUtfToUCS4(right, &uniRight);

	    /*
	     * Convert both chars to lower for the comparison, because
	     * dictionary sorts are case-insensitive. Covert to lower, not
	     * upper, so chars between Z and a will sort before A (where most
	     * other interesting punctuations occur).
	     */

	 * is a *major* win when splitting on a long string (especially in the
	 * megabyte range!) - DKF
	 */

	Tcl_InitHashTable(&charReuseTable, TCL_ONE_WORD_KEYS);

	for ( ; stringPtr < end; stringPtr += len) {
	    len = TclUtfToUCS4(stringPtr, &ch);
	    hPtr = Tcl_CreateHashEntry(&charReuseTable, INT2PTR(ch), &isNew);
	    if (isNew) {
		TclNewStringObj(objPtr, stringPtr, len);

		/*
		 * Don't need to fiddle with refcount...
		 */

	 * Normal case: split on any of a given set of characters. Discard
	 * instances of the split characters.
	 */

	splitEnd = splitChars + splitCharLen;

	for (element = stringPtr; stringPtr < end; stringPtr += len) {
	    len = TclUtfToUCS4(stringPtr, &ch);
	    for (p = splitChars; p < splitEnd; p += splitLen) {
		splitLen = TclUtfToUCS4(p, &splitChar);
		if (ch == splitChar) {
		    TclNewStringObj(objPtr, element, stringPtr - element);
		    Tcl_ListObjAppendElement(NULL, listPtr, objPtr);
		    element = stringPtr + len;
		    break;
		}
	    }

	    }
	    goto str_is_done;
	}
	end = string1 + length1;
	for (; string1 < end; string1 += length2, failat++) {
	    int ucs4;

	    length2 = TclUtfToUCS4(string1, &ucs4);
	    if (!chcomp(ucs4)) {
		result = 0;
		break;
	    }
	}
    }

    if (index >= length) {
	index = length - 1;
    }
    cur = 0;
    if (index > 0) {
	p = &string[index];

	(void)TclUniCharToUCS4(p, &ch);
	for (cur = index; cur >= 0; cur--) {
	    int delta = 0;
	    const Tcl_UniChar *next;

	    if (!Tcl_UniCharIsWordChar(ch)) {
		break;
	    }

	    next = TclUCS4Prev(p, string);
	    do {
		next += delta;

		delta = TclUniCharToUCS4(next, &ch);
	    } while (next + delta < p);
	    p = next;
	}
	if (cur != index) {
	    cur += 1;
	}
    }

    if (index < 0) {
	index = 0;
    }
    if (index < length) {
	p = &string[index];
	end = string+length;
	for (cur = index; p < end; cur++) {
	    p += TclUniCharToUCS4(p, &ch);
	    if (!Tcl_UniCharIsWordChar(ch)) {
		break;
	    }
	}
	if (cur == index) {
	    cur++;
	}

	Tcl_SetObjLength(resultPtr, length1);
	Tcl_SetObjResult(interp, resultPtr);
    } else {
	int first, last;
	const char *start, *end;
	Tcl_Obj *resultPtr;

	length1 = Tcl_NumUtfChars(string1, length1) - 1;
	if (TclGetIntForIndexM(interp,objv[2],length1, &first) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (first < 0) {
	    first = 0;
	}
	last = first;

	Tcl_SetObjLength(resultPtr, length1);
	Tcl_SetObjResult(interp, resultPtr);
    } else {
	int first, last;
	const char *start, *end;
	Tcl_Obj *resultPtr;

	length1 = Tcl_NumUtfChars(string1, length1) - 1;
	if (TclGetIntForIndexM(interp,objv[2],length1, &first) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (first < 0) {
	    first = 0;
	}
	last = first;

	Tcl_SetObjLength(resultPtr, length1);
	Tcl_SetObjResult(interp, resultPtr);
    } else {
	int first, last;
	const char *start, *end;
	Tcl_Obj *resultPtr;

	length1 = Tcl_NumUtfChars(string1, length1) - 1;
	if (TclGetIntForIndexM(interp,objv[2],length1, &first) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (first < 0) {
	    first = 0;
	}
	last = first;

     * We reject leading underscores in bareword.  No sensible reason why.
     * Might be inspired by reserved identifier rules in C, which of course
     * have no direct relevance here.
     */

    if (!TclIsBareword(*start) || *start == '_') {
	if (Tcl_UtfCharComplete(start, numBytes)) {
	    scanned = TclUtfToUCS4(start, &ch);
	} else {
	    char utfBytes[8];

	    memcpy(utfBytes, start, numBytes);
	    utfBytes[numBytes] = '\0';
	    scanned = TclUtfToUCS4(utfBytes, &ch);
	}
	*lexemePtr = INVALID;
	Tcl_DecrRefCount(literal);
	return scanned;
    }
    end = start;
    while (numBytes && TclIsBareword(*end)) {

    }

    Tcl_AppendToObj(appendObj, "\"", -1);
    p = stringPtr;
    for (;  (*p != '\0') && (i < maxChars);  p+=len) {
	int ucs4;

	len = TclUtfToUCS4(p, &ucs4);
	switch (ucs4) {
	case '"':
	    Tcl_AppendToObj(appendObj, "\\\"", -1);
	    i += 2;
	    continue;
	case '\f':
	    Tcl_AppendToObj(appendObj, "\\f", -1);

	/*
	 * Convert byte offsets to character offsets; important if multibyte
	 * characters are present in the source!
	 */

	Tcl_DictObjPut(NULL, cmd, Tcl_NewStringObj("scriptfrom", -1),
		Tcl_NewWideIntObj(Tcl_NumUtfChars(codePtr->source,
			sourceOffset)));
	Tcl_DictObjPut(NULL, cmd, Tcl_NewStringObj("scriptto", -1),
		Tcl_NewWideIntObj(Tcl_NumUtfChars(codePtr->source,
			sourceOffset + sourceLength - 1)));
	Tcl_DictObjPut(NULL, cmd, Tcl_NewStringObj("script", -1),
		Tcl_NewStringObj(codePtr->source+sourceOffset, sourceLength));
	Tcl_ListObjAppendElement(NULL, commands, cmd);
    }

#undef Decode

		 * Do not write error message into interpreter if caller
		 * wants to know error location.
		 */
		*errorLocPtr = result == TCL_OK ? TCL_INDEX_NONE : nBytesProcessed;
	    } else {
		/* Caller wants error message on failure */
		if (result != TCL_OK && interp != NULL) {
		    Tcl_Size pos = Tcl_NumUtfChars(srcStart, nBytesProcessed);
		    int ucs4;
		    char buf[TCL_INTEGER_SPACE];
		    TclUtfToUCS4(&srcStart[nBytesProcessed], &ucs4);
		    snprintf(buf, sizeof(buf), "%" TCL_SIZE_MODIFIER "u", nBytesProcessed);
		    Tcl_SetObjResult(
			interp,
			Tcl_ObjPrintf(
			    "unexpected character at index %" TCL_SIZE_MODIFIER
			    "u: 'U+%06X'",
			    pos,

		*dst++ = 0;
		src += 2;
	    }

	} else if (!Tcl_UtfCharComplete(src, srcEnd - src)) {
	    /*
	     * Incomplete byte sequence.
	     * Always check before using TclUtfToUCS4. Not doing can so
	     * cause it run beyond the end of the buffer! If we happen such an
	     * incomplete char its bytes are made to represent themselves
	     * unless the user has explicitly asked to be told.
	     */

	    if (flags & ENCODING_INPUT) {
		/* Incomplete bytes for modified UTF-8 target */

	    if (PROFILE_REPLACE(profile)) {
		ch = UNICODE_REPLACE_CHAR;
		++src;
	    } else {
		/* TCL_ENCODING_PROFILE_TCL8 */
		char chbuf[2];
		chbuf[0] = UCHAR(*src++); chbuf[1] = 0;
		TclUtfToUCS4(chbuf, &ch);
	    }
	    dst += Tcl_UniCharToUtf(ch, dst);
	} else {
	    int low;
	    int isInvalid = 0;
	    size_t len = TclUtfToUCS4(src, &ch);
	    if (flags & ENCODING_INPUT) {
		if ((len < 2) && (ch != 0)) {
		    isInvalid = 1;
		} else if ((ch > 0xFFFF) && !(flags & ENCODING_UTF)) {
		    isInvalid = 1;
		}
		if (isInvalid) {

		    src = saveSrc;
		    break;
		}
		if (PROFILE_REPLACE(profile)) {
		    ch = UNICODE_REPLACE_CHAR;
		} else {
		    low = ch;
		    len = (src <= srcEnd - 3) ? TclUtfToUCS4(src, &low) : 0;

		    if ((!LOW_SURROGATE(low)) || (ch & 0x400)) {

			if (PROFILE_STRICT(profile)) {
			    result = TCL_CONVERT_UNKNOWN;
			    src = saveSrc;
			    break;

	    result = TCL_CONVERT_MULTIBYTE;
	    break;
	}
	if (dst > dstEnd) {
	    result = TCL_CONVERT_NOSPACE;
	    break;
	}
	len = TclUtfToUCS4(src, &ch);
	if (SURROGATE(ch)) {
	    if (PROFILE_STRICT(flags)) {
		result = TCL_CONVERT_UNKNOWN;
		break;
	    }
	    if (PROFILE_REPLACE(flags)) {
		ch = UNICODE_REPLACE_CHAR;

	    result = TCL_CONVERT_MULTIBYTE;
	    break;
	}
	if (dst > dstEnd) {
	    result = TCL_CONVERT_NOSPACE;
	    break;
	}
	len = TclUtfToUCS4(src, &ch);
	if (SURROGATE(ch)) {
	    if (PROFILE_STRICT(flags)) {
		result = TCL_CONVERT_UNKNOWN;
		break;
	    }
	    if (PROFILE_REPLACE(flags)) {
		ch = UNICODE_REPLACE_CHAR;

	    result = TCL_CONVERT_MULTIBYTE;
	    break;
	}
	if (dst > dstEnd) {
	    result = TCL_CONVERT_NOSPACE;
	    break;
	}
#if TCL_UTF_MAX < 4
	len = TclUtfToUniChar(src, &ch);
	if ((ch >= 0xD800) && (len < 3)) {
	    if (PROFILE_STRICT(flags)) {
		result = TCL_CONVERT_UNKNOWN;
		break;
	    }
	    src += len;
	    src += TclUtfToUniChar(src, &ch);
	    ch = UNICODE_REPLACE_CHAR;
	}
#else
	len = TclUtfToUniChar(src, &ch);
	if (ch > 0xFFFF) {
	    if (PROFILE_STRICT(flags)) {
		result = TCL_CONVERT_UNKNOWN;
		break;
	    }
	    ch = UNICODE_REPLACE_CHAR;
	}
#endif
	if (PROFILE_STRICT(flags) && SURROGATE(ch)) {
	    result = TCL_CONVERT_SYNTAX;
	    break;
	}

	src += len;

	     */

	    result = TCL_CONVERT_MULTIBYTE;
	    break;
	}
	len = TclUtfToUniChar(src, &ch);

#if TCL_UTF_MAX > 3
	/* Unicode chars > +U0FFFF cannot be represented in any table encoding */
	if (ch & 0xFFFF0000) {
	    word = 0;
	} else
#else
	if (!len) {
	    word = 0;
	} else
#endif
	    word = fromUnicode[(ch >> 8)][ch & 0xFF];

	if ((word == 0) && (ch != 0)) {
	    if (PROFILE_STRICT(flags)) {
		result = TCL_CONVERT_UNKNOWN;
		break;
	    }

	len = TclUtfToUniChar(src, &ch);

	/*
	 * Check for illegal characters.
	 */

	if (ch > 0xFF
#if TCL_UTF_MAX < 4
		|| ((ch >= 0xD800) && (len < 3))
#endif
		) {
	    if (PROFILE_STRICT(flags)) {
		result = TCL_CONVERT_UNKNOWN;
		break;
	    }
#if TCL_UTF_MAX < 4
	    if ((ch >= 0xD800) && (len < 3)) {
		len = 4;
	    }
#endif
	    /*
	     * Plunge on, using '?' as a fallback character.
	     */

	    ch = (Tcl_UniChar) '?'; /* Profiles TCL8 and REPLACE */
	}

#endif
#ifdef PURIFY
	    ".purify"
#endif
#ifdef STATIC_BUILD
	    ".static"
#endif
#if TCL_UTF_MAX < 4
	    ".utf-16"
#endif
}};

const char *
Tcl_InitSubsystems(void)
{
    if (inExit != 0) {
	Tcl_Panic("Tcl_InitSubsystems called while exiting");

		O2S(valuePtr)));
	ustring1 = TclGetUnicodeFromObj_(valuePtr, &length);
	match = 1;
	if (length > 0) {
	    int ch;
	    end = ustring1 + length;
	    for (p=ustring1 ; p<end ; ) {
		p += TclUniCharToUCS4(p, &ch);
		if (!tclStringClassTable[opnd].comparator(ch)) {
		    match = 0;
		    break;
		}
	    }
	}
	TRACE_APPEND(("%d\n", match));

MODULE_SCOPE const char*TclGetCommandTypeName(Tcl_Command command);
MODULE_SCOPE void	TclRegisterCommandTypeName(
			    Tcl_ObjCmdProc *implementationProc,
			    const char *nameStr);
MODULE_SCOPE int	TclUtfCmp(const char *cs, const char *ct);
MODULE_SCOPE int	TclUtfCasecmp(const char *cs, const char *ct);
MODULE_SCOPE int	TclUtfCount(int ch);
#if TCL_UTF_MAX > 3
#   define TclUtfToUCS4 Tcl_UtfToUniChar
#   define TclUniCharToUCS4(src, ptr) (*ptr = *(src),1)
#   define TclUCS4Prev(src, ptr) (((src) > (ptr)) ? ((src) - 1) : (src))
#else
    MODULE_SCOPE int	TclUtfToUCS4(const char *, int *);
    MODULE_SCOPE int	TclUniCharToUCS4(const Tcl_UniChar *, int *);
    MODULE_SCOPE const Tcl_UniChar *TclUCS4Prev(const Tcl_UniChar *, const Tcl_UniChar *);
#endif
MODULE_SCOPE Tcl_Obj *	TclpNativeToNormalized(void *clientData);
MODULE_SCOPE Tcl_Obj *	TclpFilesystemPathType(Tcl_Obj *pathPtr);
MODULE_SCOPE int	TclpDlopen(Tcl_Interp *interp, Tcl_Obj *pathPtr,
			    Tcl_LoadHandle *loadHandle,
			    Tcl_FSUnloadFileProc **unloadProcPtr, int flags);
MODULE_SCOPE int	TclpUtime(Tcl_Obj *pathPtr, struct utimbuf *tval);
#ifdef TCL_LOAD_FROM_MEMORY

MODULE_SCOPE void *	TclpThreadGetGlobalTSD(void *tsdKeyPtr);
MODULE_SCOPE void	TclErrorStackResetIf(Tcl_Interp *interp,
			    const char *msg, Tcl_Size length);
/* Tip 430 */
MODULE_SCOPE int    TclZipfs_Init(Tcl_Interp *interp);


#if TCL_UTF_MAX > 3
    MODULE_SCOPE int *TclGetUnicodeFromObj_(Tcl_Obj *, int *);
    MODULE_SCOPE Tcl_Obj *TclNewUnicodeObj(const int *, int);
    MODULE_SCOPE void TclAppendUnicodeToObj(Tcl_Obj *, const int *, int);
    MODULE_SCOPE int TclUniCharNcasecmp(const int *, const int *, unsigned long);
    MODULE_SCOPE int TclUniCharCaseMatch(const int *, const int *, int);
    MODULE_SCOPE int TclUniCharNcmp(const int *, const int *, unsigned long);
#   undef Tcl_NumUtfChars
#   define Tcl_NumUtfChars TclNumUtfChars
#   undef Tcl_GetCharLength
#   define Tcl_GetCharLength TclGetCharLength
#   undef Tcl_UtfAtIndex
#   define Tcl_UtfAtIndex TclUtfAtIndex
#   undef Tcl_GetRange
#   define Tcl_GetRange TclGetRange
#   undef Tcl_GetUniChar
#   define Tcl_GetUniChar TclGetUniChar
#else
#   define tclUniCharStringType tclStringType
#   define TclGetUnicodeFromObj_ Tcl_GetUnicodeFromObj
#   define TclNewUnicodeObj Tcl_NewUnicodeObj
#   define TclAppendUnicodeToObj Tcl_AppendUnicodeToObj
#   define TclUniCharNcasecmp Tcl_UniCharNcasecmp
#   define TclUniCharCaseMatch Tcl_UniCharCaseMatch
#   define TclUniCharNcmp Tcl_UniCharNcmp
#   undef TclNumUtfChars
#   define TclNumUtfChars Tcl_NumUtfChars
#   undef TclGetCharLength
#   define TclGetCharLength Tcl_GetCharLength
#   undef TclUtfAtIndex
#   define TclUtfAtIndex Tcl_UtfAtIndex
#   undef TclGetRange
#   define TclGetRange Tcl_GetRange
#   undef TclGetUniChar
#   define TclGetUniChar Tcl_GetUniChar
#endif


/*
 * Many parsing tasks need a common definition of whitespace.
 * Use this routine and macro to achieve that and place
 * optimization (fragile on changes) in one place.
 */

 * string handling. The macro's expression result is 1 for the 1-byte case or
 * the result of Tcl_UtfToUniChar. The ANSI C "prototype" for this macro is:
 *
 * MODULE_SCOPE int	TclUtfToUniChar(const char *string, Tcl_UniChar *ch);
 *----------------------------------------------------------------
 */

#if TCL_UTF_MAX > 3
#define TclUtfToUniChar(str, chPtr) \
	(((UCHAR(*(str))) < 0x80) ?		\
	    ((*(chPtr) = UCHAR(*(str))), 1)	\
	    : Tcl_UtfToUniChar(str, chPtr))
#else
#define TclUtfToUniChar(str, chPtr) \
	(((UCHAR(*(str))) < 0x80) ?		\
	    ((*(chPtr) = UCHAR(*(str))), 1)	\
	    : Tcl_UtfToChar16(str, chPtr))
#endif

/*
 *----------------------------------------------------------------
 * Macro counterpart of the Tcl_NumUtfChars() function. To be used in speed-
 * -sensitive points where it pays to avoid a function call in the common case
 * of counting along a string of all one-byte characters.  The ANSI C
 * "prototype" for this macro is:

    Tcl_MutexLock(&tableMutex);
    typeTableInitialized = 1;
    Tcl_InitHashTable(&typeTable, TCL_STRING_KEYS);
    Tcl_MutexUnlock(&tableMutex);

    Tcl_RegisterObjType(&tclByteArrayType);
    Tcl_RegisterObjType(&tclDoubleType);
#if (TCL_UTF_MAX < 4) || !defined(TCL_NO_DEPRECATED)
    Tcl_RegisterObjType(&tclStringType);
#endif
#if (TCL_UTF_MAX > 3) && !defined(TCL_NO_DEPRECATED)
    /* Only registered for 8.7, not for 9.0 any more.
     * See [https://core.tcl-lang.org/tk/tktview/6b49149b4e] */
    Tcl_RegisterObjType(&tclUniCharStringType);
#endif
    Tcl_RegisterObjType(&tclListType);
    Tcl_RegisterObjType(&tclDictType);
    Tcl_RegisterObjType(&tclByteCodeType);

	 * We have to convert here in case the user has put a backslash in
	 * front of a multi-byte utf-8 character. While this means nothing
	 * special, we shouldn't break up a correct utf-8 character. [Bug
	 * #217987] test subst-3.2
	 */

	if (Tcl_UtfCharComplete(p, numBytes - 1)) {
	    count = TclUtfToUCS4(p, &unichar) + 1;	/* +1 for '\' */
	} else {
	    char utfBytes[8];

	    memcpy(utfBytes, p, numBytes - 1);
	    utfBytes[numBytes - 1] = '\0';
	    count = TclUtfToUCS4(utfBytes, &unichar) + 1;
	}
	result = unichar;
	break;
    }

  done:
    if (readPtr != NULL) {

	    break;
	}
	case 'c':
	    /*
	     * Scan a single Unicode character.
	     */

	    offset = TclUtfToUCS4(string, &i);
	    string += offset;
	    if (!(flags & SCAN_SUPPRESS)) {
		TclNewIntObj(objPtr, i);
		Tcl_IncrRefCount(objPtr);
		CLANG_ASSERT(objs);
		objs[objIndex++] = objPtr;
	    }

static void		SetUnicodeObj(Tcl_Obj *objPtr,
			    const Tcl_UniChar *unicode, Tcl_Size numChars);
static Tcl_Size		UnicodeLength(const Tcl_UniChar *unicode);
#if !defined(TCL_NO_DEPRECATED)
static int		UTF16Length(const unsigned short *unicode);
#endif
static void		UpdateStringOfString(Tcl_Obj *objPtr);
#if (TCL_UTF_MAX) > 3 && !defined(TCL_NO_DEPRECATED)
static void		DupUTF16StringInternalRep(Tcl_Obj *objPtr,
			    Tcl_Obj *copyPtr);
static int		SetUTF16StringFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr);
static void		UpdateStringOfUTF16String(Tcl_Obj *objPtr);
#endif

#define ISCONTINUATION(bytes) (\
	((((bytes)[0] & 0xC0) == 0x80) || (((bytes)[0] == '\xED') \
	&& (((bytes)[1] & 0xF0) == 0xB0) && (((bytes)[2] & 0xC0) == 0x80))))

#define SURROGATE(c_)      (((c_) & ~0x7FF) == 0xD800)
#define HIGH_SURROGATE(c_) (((c_) & ~0x3FF) == 0xD800)
#define LOW_SURROGATE(c_)  (((c_) & ~0x3FF) == 0xDC00)

/*
 * The structure below defines the string Tcl object type by means of
 * functions that can be invoked by generic object code.
 */

#if TCL_UTF_MAX < 4

#define tclUniCharStringType tclStringType
#define GET_UNICHAR_STRING GET_STRING
#define UniCharString String
#define UNICHAR_STRING_MAXCHARS STRING_MAXCHARS
#define uniCharStringAlloc stringAlloc
#define uniCharStringRealloc stringRealloc
#define uniCharStringAttemptAlloc stringAttemptAlloc
#define uniCharStringAttemptRealloc stringAttemptRealloc
#define uniCharStringCheckLimits stringCheckLimits
#define SET_UNICHAR_STRING SET_STRING
#define UNICHAR_STRING_SIZE STRING_SIZE

const Tcl_ObjType tclStringType = {
    "string",			/* name */
    FreeStringInternalRep,	/* freeIntRepPro */
    DupStringInternalRep,	/* dupIntRepProc */
    UpdateStringOfString,	/* updateStringProc */
    SetStringFromAny		/* setFromAnyProc */
};

#else

#ifndef TCL_NO_DEPRECATED
const Tcl_ObjType tclStringType = {
    "string",			/* name */
    FreeStringInternalRep,	/* freeIntRepPro */
    DupUTF16StringInternalRep,	/* dupIntRepProc */
    UpdateStringOfUTF16String,	/* updateStringProc */
    SetUTF16StringFromAny		/* setFromAnyProc */

	char *bytes = (char *)ckalloc(Tcl_DStringLength(&ds) + 1U);
	memcpy(bytes, string, Tcl_DStringLength(&ds));
	bytes[Tcl_DStringLength(&ds)] = 0;
	objPtr->bytes = bytes;
	objPtr->length = Tcl_DStringLength(&ds);
	Tcl_DStringFree(&ds);
}
#endif

#endif

/*
 * TCL STRING GROWTH ALGORITHM
 *
 * When growing strings (during an append, for example), the following growth
 * algorithm is used:

    Tcl_Obj *objPtr;

    TclNewObj(objPtr);
    SetUnicodeObj(objPtr, unicode, numChars);
    return objPtr;
}

#if (TCL_UTF_MAX > 3) && !defined(TCL_NO_DEPRECATED)
Tcl_Obj *
Tcl_NewUnicodeObj(
    const unsigned short *unicode,	/* The unicode string used to initialize the
				 * new object. */
    int numChars)		/* Number of characters in the unicode
				 * string. */
{

    if (numChars == -1) {
	TclNumUtfCharsM(numChars, objPtr->bytes, objPtr->length);
	stringPtr->numChars = numChars;
    }
    return numChars;
}

#if (TCL_UTF_MAX > 3) && !defined(TCL_NO_DEPRECATED)
#undef Tcl_GetCharLength
int
Tcl_GetCharLength(
    Tcl_Obj *objPtr)		/* The String object to get the num chars
				 * of. */
{
    int numChars;

     * because improper bytearrays have worthless internal reps.
     */

    if (TclIsPureByteArray(objPtr)) {
	(void) Tcl_GetByteArrayFromObj(objPtr, &numChars);
    } else {
	Tcl_GetString(objPtr);
	numChars = Tcl_NumUtfChars(objPtr->bytes, objPtr->length);
    }

    return numChars;
}
#endif

    Tcl_Size length = TCL_INDEX_NONE;

    if (objPtr->bytes == &tclEmptyString) {
	return TCL_EMPTYSTRING_YES;
    }

    if (TclIsPureByteArray(objPtr)
	&& Tcl_GetCharLength(objPtr) == 0) {
	return TCL_EMPTYSTRING_YES;
    }

    if (TclListObjIsCanonical(objPtr)) {
	TclListObjLengthM(NULL, objPtr, &length);
	return length == 0;
    }

 *
 * Side effects:
 *	Fills unichar with the index'th Unicode character.
 *
 *----------------------------------------------------------------------
 */

#if (TCL_UTF_MAX > 3) && !defined(TCL_NO_DEPRECATED)
#undef Tcl_GetUniChar
int
Tcl_GetUniChar(
    Tcl_Obj *objPtr,		/* The object to get the Unicode charater
				 * from. */
    Tcl_Size index)		/* Get the index'th Unicode character. */
{

	stringPtr = GET_UNICHAR_STRING(objPtr);
    }

    if (index >= stringPtr->numChars) {
	return -1;
    }
    ch = stringPtr->unicode[index];
#if TCL_UTF_MAX < 4
    /* See: bug [11ae2be95dac9417] */
    if (SURROGATE(ch)) {
	if (ch & 0x400) {
	    if ((index > 0)
		    && HIGH_SURROGATE(stringPtr->unicode[index-1])) {
		ch = -1; /* low surrogate preceded by high surrogate */
	    }
	} else if ((++index < stringPtr->numChars)
		&& LOW_SURROGATE(stringPtr->unicode[index])) {
	    /* high surrogate followed by low surrogate */
	    ch = (((ch & 0x3FF) << 10) |
			(stringPtr->unicode[index] & 0x3FF)) + 0x10000;
	}
    }
#endif
    return ch;
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_GetUnicode --

    if (lengthPtr != NULL) {
	*lengthPtr = stringPtr->numChars;
    }
    return stringPtr->unicode;
}

#if TCL_UTF_MAX > 3 && !defined(TCL_NO_DEPRECATED)
unsigned short *
Tcl_GetUnicodeFromObj(
    Tcl_Obj *objPtr,		/* The object to find the Unicode string
				 * for. */
    int *lengthPtr)		/* If non-NULL, the location where the string
				 * rep's Tcl_UniChar length should be stored. If
				 * NULL, no length is stored. */

				 * for. */
    void *lengthPtr)	/* If non-NULL, the location where the string
				 * rep's unichar length should be stored. If
				 * NULL, no length is stored. */
{
    String *stringPtr;

#if TCL_UTF_MAX > 3
    SetUTF16StringFromAny(NULL, objPtr);
#else
    SetStringFromAny(NULL, objPtr);
#endif
    stringPtr = GET_STRING(objPtr);

    if (lengthPtr != NULL) {
	*(ptrdiff_t *)lengthPtr = stringPtr->numChars;
    }
    return stringPtr->unicode;
}

 *
 * Side effects:
 *	Changes the internal rep of "objPtr" to the String type.
 *
 *----------------------------------------------------------------------
 */

#if TCL_UTF_MAX > 3 && !defined(TCL_NO_DEPRECATED)
#undef Tcl_GetRange
Tcl_Obj *
Tcl_GetRange(
    Tcl_Obj *objPtr,		/* The Tcl object to find the range of. */
    int first,			/* First index of the range. */
    int last)			/* Last index of the range. */
{

	if (last < first) {
	    TclNewObj(newObjPtr);
	    return newObjPtr;
	}
	return Tcl_NewByteArrayObj(bytes + first, last - first + 1);
    }

    int numChars = Tcl_NumUtfChars(objPtr->bytes, objPtr->length);

    if (last < 0 || last >= numChars) {
	last = numChars - 1;
    }
    if (last < first) {
	TclNewObj(newObjPtr);
	return newObjPtr;

    if (last < 0 || last >= stringPtr->numChars) {
	last = stringPtr->numChars - 1;
    }
    if (last < first) {
	TclNewObj(newObjPtr);
	return newObjPtr;
    }
#if TCL_UTF_MAX < 4
    /* See: bug [11ae2be95dac9417] */
    if ((first > 0) && LOW_SURROGATE(stringPtr->unicode[first])
	    && HIGH_SURROGATE(stringPtr->unicode[first-1])) {
	++first;
    }
    if ((last + 1 < stringPtr->numChars)
	    && LOW_SURROGATE(stringPtr->unicode[last+1])
	    && HIGH_SURROGATE(stringPtr->unicode[last])) {
	++last;
    }
#endif
    return TclNewUnicodeObj(stringPtr->unicode + first, last - first + 1);
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_SetStringObj --

    if (stringPtr->hasUnicode) {
	AppendUnicodeToUnicodeRep(objPtr, unicode, length);
    } else {
	AppendUnicodeToUtfRep(objPtr, unicode, length);
    }
}

#if TCL_UTF_MAX > 3 && !defined(TCL_NO_DEPRECATED)
void
Tcl_AppendUnicodeToObj(
    Tcl_Obj *objPtr,		/* Points to the object to append to. */
    const unsigned short *unicode,	/* The unicode string to append to the
				 * object. */
    Tcl_Size length)		/* Number of chars in Unicode. Negative
    				 * lengths means nul terminated */

		    s1 = value1Ptr->bytes;
		    s2 = value2Ptr->bytes;
		    memCmpFn = memcmp;
		} else {
		    s1 = (char *) TclGetUnicodeFromObj_(value1Ptr, NULL);
		    s2 = (char *) TclGetUnicodeFromObj_(value2Ptr, NULL);
		    if (
#if defined(WORDS_BIGENDIAN) && (TCL_UTF_MAX > 3)
			    1
#else
			    checkEq
#endif
			    ) {
			memCmpFn = memcmp;
			s1len *= sizeof(Tcl_UniChar);

		 * TclpUtfNcmp2 if we are case-sensitive and no specific
		 * length was requested.
		 */

		if ((reqlength < 0) && !nocase) {
		    memCmpFn = (memCmpFn_t)(void *)TclpUtfNcmp2;
		} else {
		    s1len = Tcl_NumUtfChars(s1, s1len);
		    s2len = Tcl_NumUtfChars(s2, s2len);
		    memCmpFn = (memCmpFn_t)(void *)
			    (nocase ? Tcl_UtfNcasecmp : Tcl_UtfNcmp);
		}
	    }
	}

	/* At this point s1len, s2len, and reqlength should by now have been

TclStringReverse(
    Tcl_Obj *objPtr,
    int flags)
{
    UniCharString *stringPtr;
    Tcl_UniChar ch = 0;
    int inPlace = flags & TCL_STRING_IN_PLACE;
#if TCL_UTF_MAX < 4
    int needFlip = 0;
#endif

    if (TclIsPureByteArray(objPtr)) {
	Tcl_Size numBytes;
	unsigned char *from = Tcl_GetByteArrayFromObj(objPtr, &numBytes);

	if (!inPlace || Tcl_IsShared(objPtr)) {
	    objPtr = Tcl_NewByteArrayObj(NULL, numBytes);

	     */

	    objPtr = TclNewUnicodeObj(&ch, 1);
	    Tcl_SetObjLength(objPtr, stringPtr->numChars);
	    to = TclGetUnicodeFromObj_(objPtr, NULL);
	    stringPtr = GET_UNICHAR_STRING(objPtr);
	    while (--src >= from) {
#if TCL_UTF_MAX < 4
		ch = *src;
		if (SURROGATE(ch)) {
		    needFlip = 1;
		}
		*to++ = ch;
#else
		*to++ = *src;
#endif
	    }
	} else {
	    /*
	     * Reversing in place.
	     */

#if TCL_UTF_MAX < 4
	    to = src;
#endif
	    while (--src > from) {
		ch = *src;
#if TCL_UTF_MAX < 4
		if (SURROGATE(ch)) {
		    needFlip = 1;
		}
#endif
		*src = *from;
		*from++ = ch;
	    }
	}
#if TCL_UTF_MAX < 4
	if (needFlip) {
	    /*
	     * Flip back surrogate pairs.
	     */

	    from = to - stringPtr->numChars;
	    while (--to >= from) {
		ch = *to;
		if (HIGH_SURROGATE(ch)) {
		    if ((to-1 >= from) && LOW_SURROGATE(to[-1])) {
			to[0] = to[-1];
			to[-1] = ch;
			--to;
		    }
		}
	    }
	}
#endif
    }

    if (objPtr->bytes) {
	Tcl_Size numChars = stringPtr->numChars;
	Tcl_Size numBytes = objPtr->length;
	char *to, *from = objPtr->bytes;

	    while (bytesLeft) {
		/*
		 * NOTE: We know that the from buffer is NUL-terminated. It's
		 * part of the contract for objPtr->bytes values. Thus, we can
		 * skip calling Tcl_UtfCharComplete() here.
		 */

		int bytesInChar = TclUtfToUCS4(from, &chw);

		ReverseBytes((unsigned char *)to, (unsigned char *)from,
			bytesInChar);
		to += bytesInChar;
		from += bytesInChar;
		bytesLeft -= bytesInChar;
	    }

	stringPtr->numChars = needed;
    } else {
	numAppendChars = 0;
    }
    dst = stringPtr->unicode + numOrigChars;
    if (numAppendChars-- > 0) {
	bytes += TclUtfToUniChar(bytes, &unichar);
#if TCL_UTF_MAX > 3
	/* join upper/lower surrogate */
	if (bytes && (stringPtr->unicode[numOrigChars - 1] | 0x3FF) == 0xDBFF && (unichar | 0x3FF) == 0xDFFF) {
		stringPtr->numChars--;
		unichar = ((stringPtr->unicode[numOrigChars - 1] & 0x3FF) << 10) + (unichar & 0x3FF) + 0x10000;
		dst--;
	}
#endif
	*dst++ = unichar;
	while (numAppendChars-- > 0) {
	    bytes += TclUtfToUniChar(bytes, &unichar);
	    *dst++ = unichar;
	}
    }
    *dst = 0;

#undef Tcl_AppendUnicodeToObj
#undef Tcl_NewUnicodeObj
#undef Tcl_SetUnicodeObj
#undef Tcl_UniCharNcasecmp
#undef Tcl_UniCharCaseMatch
#undef Tcl_UniCharLen
#undef Tcl_UniCharNcmp
#undef Tcl_GetRange
#undef Tcl_GetUniChar
#undef Tcl_DumpActiveMemory
#undef Tcl_ValidateAllMemory
#undef Tcl_FindHashEntry
#undef Tcl_CreateHashEntry
#undef Tcl_Panic
#undef Tcl_FindExecutable
#undef Tcl_SetExitProc

#define TclStaticLibrary Tcl_StaticLibrary
#undef Tcl_UniCharToUtfDString
#undef Tcl_UtfToUniCharDString
#undef Tcl_UtfToUniChar
#undef Tcl_MacOSXOpenBundleResources
#undef TclWinConvertWSAError
#undef TclWinConvertError
#undef Tcl_NumUtfChars
#undef Tcl_GetCharLength
#undef Tcl_UtfAtIndex
#undef Tcl_GetRange
#undef Tcl_GetUniChar
#undef TclObjInterpProc

#if defined(_WIN32) || defined(__CYGWIN__)
#define TclWinConvertWSAError (void (*)(DWORD))(void *)Tcl_WinConvertError
#define TclWinConvertError (void (*)(DWORD))(void *)Tcl_WinConvertError
#endif


#if TCL_UTF_MAX > 3 && defined(TCL_NO_DEPRECATED)
static void uniCodePanic(void) {
    Tcl_Panic("Tcl is compiled without the the UTF16 compatibility layer (-DTCL_NO_DEPRECATED)");
}
#   define Tcl_GetUnicode (unsigned short *(*)(Tcl_Obj *))(void *)uniCodePanic
#   define Tcl_GetUnicodeFromObj (unsigned short *(*)(Tcl_Obj *, int *))(void *)uniCodePanic
#   define TclGetUnicodeFromObj (unsigned short *(*)(Tcl_Obj *, void *))(void *)uniCodePanic
#   define Tcl_NewUnicodeObj (Tcl_Obj *(*)(const unsigned short *, int))(void *)uniCodePanic

		    "integer value too large to represent", -1));
	    result = TCL_ERROR;
	}
    }
    return result;
}
#define Tcl_ExprLongObj (int(*)(Tcl_Interp*,Tcl_Obj*,long*))exprIntObj
#if TCL_UTF_MAX < 4 && !defined(TCL_NO_DEPRECATED)
static int uniCharNcmp(const Tcl_UniChar *ucs, const Tcl_UniChar *uct, unsigned int n){
   return Tcl_UniCharNcmp(ucs, uct, (unsigned long)n);
}
#define Tcl_UniCharNcmp (int(*)(const Tcl_UniChar*,const Tcl_UniChar*,unsigned long))(void *)uniCharNcmp
static int uniCharNcasecmp(const Tcl_UniChar *ucs, const Tcl_UniChar *uct, unsigned int n){
   return Tcl_UniCharNcasecmp(ucs, uct, (unsigned long)n);
}
#define Tcl_UniCharNcasecmp (int(*)(const Tcl_UniChar*,const Tcl_UniChar*,unsigned long))(void *)uniCharNcasecmp
#endif
static int utfNcmp(const char *s1, const char *s2, unsigned int n){
   return Tcl_UtfNcmp(s1, s2, (unsigned long)n);
}
#define Tcl_UtfNcmp (int(*)(const char*,const char*,unsigned long))(void *)utfNcmp
static int utfNcasecmp(const char *s1, const char *s2, unsigned int n){
   return Tcl_UtfNcasecmp(s1, s2, (unsigned long)n);
}

#   undef TclpGmtime
#   define TclpGmtime 0
#   define TclpLocaltime_unix 0
#   define TclpGmtime_unix 0
#   define Tcl_SetExitProc 0
#   define Tcl_SetPanicProc 0
#   define Tcl_FindExecutable 0
#if TCL_UTF_MAX < 4
#   define Tcl_GetUnicode 0
#   define Tcl_AppendUnicodeToObj 0
#   define Tcl_UniCharCaseMatch 0
#   define Tcl_UniCharNcasecmp 0
#   define Tcl_UniCharNcmp 0
#endif
#   undef Tcl_StringMatch
#   define Tcl_StringMatch 0
#   define TclBN_reverse 0
#   undef TclBN_s_mp_mul_digs_fast
#   define TclBN_s_mp_mul_digs_fast 0
#   undef TclBN_s_mp_sqr_fast
#   define TclBN_s_mp_sqr_fast 0

#endif
#ifdef PURIFY
	    ".purify"
#endif
#ifdef STATIC_BUILD
	    ".static"
#endif
#if TCL_UTF_MAX < 4
	    ".utf-16"
#endif
;

int
Tcltest_Init(
    Tcl_Interp *interp)		/* Interpreter for application. */
{
    Tcl_CmdInfo info;

 *	The caller must ensure that the source buffer is long enough that this
 *	routine does not run off the end and dereference non-existent memory
 *	looking for trail bytes. If the source buffer is known to be '\0'
 *	terminated, this cannot happen. Otherwise, the caller should call
 *	Tcl_UtfCharComplete() before calling this routine to ensure that
 *	enough bytes remain in the string.
 *
 *	If TCL_UTF_MAX <= 4, special handling of Surrogate pairs is done:
 *	For any UTF-8 string containing a character outside of the BMP, the
 *	first call to this function will fill *chPtr with the high surrogate
 *	and generate a return value of 1. Calling Tcl_UtfToUniChar again
 *	will produce the low surrogate and a return value of 3. Because *chPtr
 *	is used to remember whether the high surrogate is already produced, it
 *	is recommended to initialize the variable it points to as 0 before
 *	the first call to Tcl_UtfToUniChar is done.

    wString = (int *) (Tcl_DStringValue(dsPtr) + oldLength);

    w = wString;
    p = src;
    endPtr = src + length;
    optPtr = endPtr - 4;
    while (p <= optPtr) {
	p += TclUtfToUCS4(p, &ch);
	*w++ = ch;
    }
    while ((p < endPtr) && Tcl_UtfCharComplete(p, endPtr-p)) {
	p += TclUtfToUCS4(p, &ch);
	*w++ = ch;
    }
    while (p < endPtr) {
	*w++ = UCHAR(*p++);
    }
    *w = '\0';
    Tcl_DStringSetLength(dsPtr,

	    }
	    i++;
	}
    }
    return i;
}

#if (TCL_UTF_MAX > 3) && !defined(TCL_NO_DEPRECATED)
#undef Tcl_NumUtfChars
int
Tcl_NumUtfChars(
    const char *src,	/* The UTF-8 string to measure. */
    int length)		/* The length of the string in bytes, or -1
			 * for strlen(string). */
{
    unsigned short ch = 0;

const char *
Tcl_UtfFindFirst(
    const char *src,		/* The UTF-8 string to be searched. */
    int ch)			/* The Unicode character to search for. */
{
    while (1) {
	int find, len = TclUtfToUCS4(src, &find);

	if (find == ch) {
	    return src;
	}
	if (*src == '\0') {
	    return NULL;
	}

Tcl_UtfFindLast(
    const char *src,		/* The UTF-8 string to be searched. */
    int ch)			/* The Unicode character to search for. */
{
    const char *last = NULL;

    while (1) {
	int find, len = TclUtfToUCS4(src, &find);

	if (find == ch) {
	    last = src;
	}
	if (*src == '\0') {
	    break;
	}

	i = Tcl_UtfToChar16(src, &ch);
	src += i;
    }
    if ((ch >= 0xD800) && (i < 3)) {
	/* Index points at character following high Surrogate */
	return -1;
    }
    TclUtfToUCS4(src, &i);
    return i;
}

/*
 *---------------------------------------------------------------------------
 *
 * Tcl_UtfAtIndex --
 *
 *	Returns a pointer to the specified character (not byte) position in
 *	the UTF-8 string. If TCL_UTF_MAX < 4, characters > U+FFFF count as
 *	2 positions, but then the pointer should never be placed between
 *	the two positions.
 *
 * Results:
 *	As above.
 *
 * Side effects:
 *	None.
 *
 *---------------------------------------------------------------------------
 */

#if TCL_UTF_MAX < 4
#   undef Tcl_UtfToUniChar
#   define Tcl_UtfToUniChar Tcl_UtfToChar16
#endif

const char *
TclUtfAtIndex(
    const char *src,	/* The UTF-8 string. */
    int index)		/* The position of the desired character. */
{
	Tcl_UniChar ch = 0;
    int len = 0;

    while (index-- > 0) {
	len = (Tcl_UtfToUniChar)(src, &ch);
	src += len;
    }
#if TCL_UTF_MAX < 4
    if ((ch >= 0xD800) && (len < 3)) {
	/* Index points at character following high Surrogate */
	src += (Tcl_UtfToUniChar)(src, &ch);
    }
#endif
    return src;
}

#if (TCL_UTF_MAX > 3) && !defined(TCL_NO_DEPRECATED)
#undef Tcl_UtfAtIndex
const char *
Tcl_UtfAtIndex(
    const char *src,	/* The UTF-8 string. */
    int index)		/* The position of the desired character. */
{
    unsigned short ch = 0;
    int len = 0;

    /*
     * Iterate over the string until we hit the terminating null.
     */

    src = dst = str;
    while (*src) {
	len = TclUtfToUCS4(src, &ch);
	upChar = Tcl_UniCharToUpper(ch);

	/*
	 * To keep badly formed Utf strings from getting inflated by the
	 * conversion (thereby causing a segfault), only copy the upper case
	 * char to dst if its size is <= the original char.
	 */

    /*
     * Iterate over the string until we hit the terminating null.
     */

    src = dst = str;
    while (*src) {
	len = TclUtfToUCS4(src, &ch);
	lowChar = Tcl_UniCharToLower(ch);

	/*
	 * To keep badly formed Utf strings from getting inflated by the
	 * conversion (thereby causing a segfault), only copy the lower case
	 * char to dst if its size is <= the original char.
	 */

     * Capitalize the first character and then lowercase the rest of the
     * characters until we get to a null.
     */

    src = dst = str;

    if (*src) {
	len = TclUtfToUCS4(src, &ch);
	titleChar = Tcl_UniCharToTitle(ch);

	if ((len < TclUtfCount(titleChar)) || ((titleChar & ~0x7FF) == 0xD800)) {
	    memmove(dst, src, len);
	    dst += len;
	} else {
	    dst += Tcl_UniCharToUtf(titleChar, dst);
	}
	src += len;
    }
    while (*src) {
	len = TclUtfToUCS4(src, &ch);
	lowChar = ch;
	/* Special exception for Georgian Asomtavruli chars, no titlecase. */
	if ((unsigned)(lowChar - 0x1C90) >= 0x30) {
	    lowChar = Tcl_UniCharToLower(lowChar);
	}

	if ((len < TclUtfCount(lowChar)) || ((lowChar & ~0x7FF) == 0xD800)) {

	 * only when both strings are of at least n chars long (no need for \0
	 * check)
	 */

	cs += TclUtfToUniChar(cs, &ch1);
	ct += TclUtfToUniChar(ct, &ch2);
	if (ch1 != ch2) {
#if TCL_UTF_MAX < 4
	    /* Surrogates always report higher than non-surrogates */
	    if (((ch1 & 0xFC00) == 0xD800)) {
	    if ((ch2 & 0xFC00) != 0xD800) {
		return ch1;
	    }
	    } else if ((ch2 & 0xFC00) == 0xD800) {
		return -ch2;
	    }
#endif
	    return (ch1 - ch2);
	}
    }
    return 0;
}

/*

	 * n must be interpreted as chars, not bytes.
	 * This should be called only when both strings are of
	 * at least n chars long (no need for \0 check)
	 */
	cs += TclUtfToUniChar(cs, &ch1);
	ct += TclUtfToUniChar(ct, &ch2);
	if (ch1 != ch2) {
#if TCL_UTF_MAX < 4
	    /* Surrogates always report higher than non-surrogates */
	    if (((ch1 & 0xFC00) == 0xD800)) {
	    if ((ch2 & 0xFC00) != 0xD800) {
		return ch1;
	    }
	    } else if ((ch2 & 0xFC00) == 0xD800) {
		return -ch2;
	    }
#endif
	    ch1 = Tcl_UniCharToLower(ch1);
	    ch2 = Tcl_UniCharToLower(ch2);
	    if (ch1 != ch2) {
		return (ch1 - ch2);
	    }
	}
    }

{
    Tcl_UniChar ch1 = 0, ch2 = 0;

    while (*cs && *ct) {
	cs += TclUtfToUniChar(cs, &ch1);
	ct += TclUtfToUniChar(ct, &ch2);
	if (ch1 != ch2) {
#if TCL_UTF_MAX < 4
	    /* Surrogates always report higher than non-surrogates */
	    if (((ch1 & 0xFC00) == 0xD800)) {
	    if ((ch2 & 0xFC00) != 0xD800) {
		return ch1;
	    }
	    } else if ((ch2 & 0xFC00) == 0xD800) {
		return -ch2;
	    }
#endif
	    return ch1 - ch2;
	}
    }
    return UCHAR(*cs) - UCHAR(*ct);
}



{
    Tcl_UniChar ch1 = 0, ch2 = 0;

    while (*cs && *ct) {
	cs += TclUtfToUniChar(cs, &ch1);
	ct += TclUtfToUniChar(ct, &ch2);
	if (ch1 != ch2) {
#if TCL_UTF_MAX < 4
	    /* Surrogates always report higher than non-surrogates */
	    if (((ch1 & 0xFC00) == 0xD800)) {
	    if ((ch2 & 0xFC00) != 0xD800) {
		return ch1;
	    }
	    } else if ((ch2 & 0xFC00) == 0xD800) {
		return -ch2;
	    }
#endif
	    ch1 = Tcl_UniCharToLower(ch1);
	    ch2 = Tcl_UniCharToLower(ch2);
	    if (ch1 != ch2) {
		return ch1 - ch2;
	    }
	}
    }

int
TclUniCharNcmp(
    const Tcl_UniChar *ucs,	/* Unicode string to compare to uct. */
    const Tcl_UniChar *uct,	/* Unicode string ucs is compared to. */
    unsigned long numChars)	/* Number of unichars to compare. */
{
#if defined(WORDS_BIGENDIAN) && (TCL_UTF_MAX > 3)
    /*
     * We are definitely on a big-endian machine; memcmp() is safe
     */

    return memcmp(ucs, uct, numChars*sizeof(Tcl_UniChar));

#else /* !WORDS_BIGENDIAN */
    /*
     * We can't simply call memcmp() because that is not lexically correct.
     */

    for ( ; numChars != 0; ucs++, uct++, numChars--) {
	if (*ucs != *uct) {
	    return (*ucs - *uct);
	}
    }
    return 0;
#endif /* WORDS_BIGENDIAN */
}

#if (TCL_UTF_MAX > 3) && !defined(TCL_NO_DEPRECATED)
int
Tcl_UniCharNcmp(
    const unsigned short *ucs,	/* Unicode string to compare to uct. */
    const unsigned short *uct,	/* Unicode string ucs is compared to. */
    unsigned long numChars)	/* Number of unichars to compare. */
{
#if defined(WORDS_BIGENDIAN) && (TCL_UTF_MAX > 3)
    /*
     * We are definitely on a big-endian machine; memcmp() is safe
     */

    return memcmp(ucs, uct, numChars*sizeof(Tcl_UniChar));

#else /* !WORDS_BIGENDIAN */

		return (lcs - lct);
	    }
	}
    }
    return 0;
}

#if (TCL_UTF_MAX > 3) && !defined(TCL_NO_DEPRECATED)
int
Tcl_UniCharNcasecmp(
    const unsigned short *ucs,	/* Unicode string to compare to uct. */
    const unsigned short *uct,	/* Unicode string ucs is compared to. */
    unsigned long numChars)	/* Number of unichars to compare. */
{
    for ( ; numChars != 0; numChars--, ucs++, uct++) {

	    return 0;
	}
	uniStr++;
	uniPattern++;
    }
}

#if (TCL_UTF_MAX > 3) && !defined(TCL_NO_DEPRECATED)
int
Tcl_UniCharCaseMatch(
    const unsigned short *uniStr,	/* Unicode String. */
    const unsigned short *uniPattern,
				/* Pattern, which may contain special
				 * characters. */
    int nocase)			/* 0 for case sensitive, 1 for insensitive */

	    return 0;
	}
	string++;
	pattern++;
    }
}

/*
 *---------------------------------------------------------------------------
 *
 * TclUtfToUCS4 --
 *
 *	Extracts the 4-byte codepoint from the leading bytes of the
 *	Modified UTF-8 string "src".  This is a utility routine to
 *	contain the surrogate gymnastics in one place.
 *
 *	The caller must ensure that the source buffer is long enough that this
 *	routine does not run off the end and dereference non-existent memory
 *	looking for trail bytes. If the source buffer is known to be '\0'
 *	terminated, this cannot happen. Otherwise, the caller should call
 *	Tcl_UtfCharComplete() before calling this routine to ensure that
 *	enough bytes remain in the string.
 *
 * Results:
 *	Fills *usc4Ptr with the UCS4 code point and returns the number of bytes
 *	consumed from the source string.
 *
 * Side effects:
 *	None.
 *
 *---------------------------------------------------------------------------
 */

#if TCL_UTF_MAX < 4
int
TclUtfToUCS4(
    const char *src,	/* The UTF-8 string. */
    int *ucs4Ptr)	/* Filled with the UCS4 codepoint represented
			 * by the UTF-8 string. */
{
#   undef Tcl_UtfToUniChar
    return Tcl_UtfToUniChar(src, ucs4Ptr);
}

int
TclUniCharToUCS4(
    const Tcl_UniChar *src,	/* The Tcl_UniChar string. */
    int *ucs4Ptr)	/* Filled with the UCS4 codepoint represented
			 * by the Tcl_UniChar string. */
{
    if (((src[0] & 0xFC00) == 0xD800) && ((src[1] & 0xFC00) == 0xDC00)) {
	*ucs4Ptr = (((src[0] & 0x3FF) << 10) | (src[1] & 0x3FF)) + 0x10000;
	return 2;
    }
    *ucs4Ptr = src[0];
    return 1;
}

const Tcl_UniChar *TclUCS4Prev(const Tcl_UniChar *src, const Tcl_UniChar *ptr) {
    if (src <= ptr + 1) {
    	return ptr;
    }
    if (((src[-1] & 0xFC00) == 0xDC00) && ((src[-2] & 0xFC00) == 0xD800)) {
	return src - 2;
    }
    return src - 1;
}



#endif

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

    do {
	const char *q = trim;
	Tcl_Size pInc = 0, bytesLeft = numTrim;

	pp = Tcl_UtfPrev(p, bytes);
	do {
	    pp += pInc;
 	    pInc = TclUtfToUCS4(pp, &ch1);
	} while (pp + pInc < p);

	/*
	 * Inner loop: scan trim string for match to current character.
	 */

	do {
	    pInc = TclUtfToUCS4(q, &ch2);

	    if (ch1 == ch2) {
		break;
	    }

	    q += pInc;
	    bytesLeft -= pInc;

    }

    /*
     * Outer loop: iterate over string to be trimmed.
     */

    do {
	Tcl_Size pInc = TclUtfToUCS4(p, &ch1);
	const char *q = trim;
	Tcl_Size bytesLeft = numTrim;

	/*
	 * Inner loop: scan trim string for match to current character.
	 */

	do {
	    Tcl_Size qInc = TclUtfToUCS4(q, &ch2);

	    if (ch1 == ch2) {
		break;
	    }

	    q += qInc;
	    bytesLeft -= qInc;

	numBytes -= trimLeft;

	/* If we did not trim the whole string, it starts with a character
	 * that we will not trim. Skip over it. */
	if (numBytes > 0) {
	    int ch;
	    const char *first = bytes + trimLeft;
	    bytes += TclUtfToUCS4(first, &ch);
	    numBytes -= (bytes - first);

	    if (numBytes > 0) {
		/* When bytes is NUL-terminated, returns
		 * 0 <= trimRight <= numBytes */
		trimRight = TclTrimRight(bytes, numBytes, trim, numTrim);
	    }

	     * This is a special case optimization for single-byte utf.
	     */

	    if (UCHAR(*pattern) < 0x80) {
		ch2 = (int)
			(nocase ? tolower(UCHAR(*pattern)) : UCHAR(*pattern));
	    } else {
		TclUtfToUCS4(pattern, &ch2);
		if (nocase) {
		    ch2 = Tcl_UniCharToLower(ch2);
		}
	    }

	    while (1) {
		/*
		 * Optimization for matching - cruise through the string
		 * quickly if the next char in the pattern isn't a special
		 * character
		 */

		if ((p != '[') && (p != '?') && (p != '\\')) {
		    if (nocase) {
			while (*str) {
			    charLen = TclUtfToUCS4(str, &ch1);
			    if (ch2==ch1 || ch2==Tcl_UniCharToLower(ch1)) {
				break;
			    }
			    str += charLen;
			}
		    } else {
			/*
			 * There's no point in trying to make this code
			 * shorter, as the number of bytes you want to compare
			 * each time is non-constant.
			 */

			while (*str) {
			    charLen = TclUtfToUCS4(str, &ch1);
			    if (ch2 == ch1) {
				break;
			    }
			    str += charLen;
			}
		    }
		}
		if (Tcl_StringCaseMatch(str, pattern, nocase)) {
		    return 1;
		}
		if (*str == '\0') {
		    return 0;
		}
		str += TclUtfToUCS4(str, &ch1);
	    }
	}

	/*
	 * Check for a "?" as the next pattern character. It matches any
	 * single character.
	 */

	if (p == '?') {
	    pattern++;
	    str += TclUtfToUCS4(str, &ch1);
	    continue;
	}

	/*
	 * Check for a "[" as the next pattern character. It is followed by a
	 * list of characters that are acceptable, or by a range (two
	 * characters separated by "-").
	 */

	if (p == '[') {
	    int startChar = 0, endChar = 0;

	    pattern++;
	    if (UCHAR(*str) < 0x80) {
		ch1 = (int)
			(nocase ? tolower(UCHAR(*str)) : UCHAR(*str));
		str++;
	    } else {
		str += TclUtfToUCS4(str, &ch1);
		if (nocase) {
		    ch1 = Tcl_UniCharToLower(ch1);
		}
	    }
	    while (1) {
		if ((*pattern == ']') || (*pattern == '\0')) {
		    return 0;
		}
		if (UCHAR(*pattern) < 0x80) {
		    startChar = (int) (nocase
			    ? tolower(UCHAR(*pattern)) : UCHAR(*pattern));
		    pattern++;
		} else {
		    pattern += TclUtfToUCS4(pattern, &startChar);
		    if (nocase) {
			startChar = Tcl_UniCharToLower(startChar);
		    }
		}
		if (*pattern == '-') {
		    pattern++;
		    if (*pattern == '\0') {
			return 0;
		    }
		    if (UCHAR(*pattern) < 0x80) {
			endChar = (int) (nocase
				? tolower(UCHAR(*pattern)) : UCHAR(*pattern));
			pattern++;
		    } else {
			pattern += TclUtfToUCS4(pattern, &endChar);
			if (nocase) {
			    endChar = Tcl_UniCharToLower(endChar);
			}
		    }
		    if (((startChar <= ch1) && (ch1 <= endChar))
			    || ((endChar <= ch1) && (ch1 <= startChar))) {
			/*

	}

	/*
	 * There's no special character. Just make sure that the next bytes of
	 * each string match.
	 */

	str += TclUtfToUCS4(str, &ch1);
	pattern += TclUtfToUCS4(pattern, &ch2);
	if (nocase) {
	    if (Tcl_UniCharToLower(ch1) != Tcl_UniCharToLower(ch2)) {
		return 0;
	    }
	} else if (ch1 != ch2) {
	    return 0;
	}

}

::tcltest::loadTestedCommands
catch [list package require -exact tcl::test [info patchlevel]]

source [file join [file dirname [info script]] tcltests.tcl]

testConstraint ucs2 [expr {[format %c 0x010000] eq "\uFFFD"}]
testConstraint fullutf [expr {[format %c 0x010000] ne "\uFFFD"}]
testConstraint utf16 [expr {[string length [format %c 0x10000]] == 2}]
testConstraint utf32 [expr {[testConstraint fullutf]
		&& [string length [format %c 0x10000]] == 1}]

testConstraint Uesc [expr {"\U0041" eq "A"}]
testConstraint pre388 [expr {"\x741" eq "A"}]
testConstraint pairsTo4bytes [expr {[llength [info commands teststringbytes]]
		&& [string length [teststringbytes \uD83D\uDCA9]] == 4}]

testConstraint testbytestring [llength [info commands testbytestring]]
testConstraint testfindfirst [llength [info commands testfindfirst]]
testConstraint testfindlast [llength [info commands testfindlast]]
testConstraint testnumutfchars [llength [info commands testnumutfchars]]
testConstraint teststringobj [llength [info commands teststringobj]]
testConstraint testutfnext [llength [info commands testutfnext]]
testConstraint testutfprev [llength [info commands testutfprev]]

} 1
test utf-1.5 {Tcl_UniCharToUtf: overflowed Tcl_UniChar} testbytestring {
    expr {[format %c 0x110000] eq [testbytestring \xEF\xBF\xBD]}
} 1
test utf-1.6 {Tcl_UniCharToUtf: negative Tcl_UniChar} testbytestring {
    expr {[format %c -1] eq [testbytestring \xEF\xBF\xBD]}
} 1
test utf-1.7.0 {Tcl_UniCharToUtf: 4 byte sequences} {fullutf testbytestring} {
    expr {"\U014E4E" eq [testbytestring \xF0\x94\xB9\x8E]}
} 1
test utf-1.7.1 {Tcl_UniCharToUtf: 4 byte sequences} {Uesc ucs2 testbytestring} {
    expr {"\U014E4E" eq [testbytestring \xF0\x94\xB9\x8E]}
} 0
test utf-1.8 {Tcl_UniCharToUtf: 3 byte sequence, high surrogate} testbytestring {
    expr {"\uD842" eq [testbytestring \xED\xA1\x82]}
} 1
test utf-1.9 {Tcl_UniCharToUtf: 3 byte sequence, low surrogate} testbytestring {
    expr {"\uDC42" eq [testbytestring \xED\xB1\x82]}
} 1
test utf-1.10 {Tcl_UniCharToUtf: 3 byte sequence, high surrogate} testbytestring {
    expr {[format %c 0xD842] eq [testbytestring \xED\xA1\x82]}
} 1
test utf-1.11 {Tcl_UniCharToUtf: 3 byte sequence, low surrogate} testbytestring {
    expr {[format %c 0xDC42] eq [testbytestring \xED\xB1\x82]}
} 1
test utf-1.12 {Tcl_UniCharToUtf: 4 byte sequence, high/low surrogate} {pairsTo4bytes testbytestring} {
    expr {"\uD842\uDC42" eq [testbytestring \xF0\xA0\xA1\x82]}
} 1
test utf-1.13.0 {Tcl_UniCharToUtf: Invalid surrogate} {Uesc ucs2} {
    expr {"\UD842" eq "\uD842"}
} 1
test utf-1.13.1 {Tcl_UniCharToUtf: Invalid surrogate} {fullutf testbytestring} {
    expr {"\UD842" eq [testbytestring \xEF\xBF\xBD]}
} 1
test utf-1.14 {Tcl_UniCharToUtf: surrogate pairs from concat} {
    set lo \uDE02
    return \uD83D$lo
} \uD83D\uDE02
test utf-1.15 {Tcl_UniCharToUtf: surrogate pairs from concat} {

} 1
test utf-2.6 {Tcl_UtfToUniChar: lead (3-byte) followed by 1 trail} testbytestring {
    string length [testbytestring \xE2\xA2]
} 2
test utf-2.7 {Tcl_UtfToUniChar: lead (3-byte) followed by 2 trail} testbytestring {
    string length [testbytestring \xE4\xB9\x8E]
} 1
test utf-2.8.0 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail} {ucs2 testbytestring} {
    string length [testbytestring \xF0\x90\x80\x80]
} 2
test utf-2.8.1 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail} utf16 {
    string length 𐀀
} 2
test utf-2.8.2 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail} utf32 {
    string length 𐀀
} 1
test utf-2.9.0 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail} {ucs2 testbytestring} {
    string length [testbytestring \xF4\x8F\xBF\xBF]
} 2
test utf-2.9.1 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail} utf16 {
    string length \U10FFFF
} 2
test utf-2.9.2 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail} utf32 {
    string length \U10FFFF
} 1
test utf-2.10 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail, underflow} testbytestring {
    string length [testbytestring \xF0\x8F\xBF\xBF]
} 4
test utf-2.11 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail, overflow} testbytestring {
    # Would decode to U+110000 but that is outside the Unicode range.

} 1
test utf-6.9 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0\x00]
} 1
test utf-6.10 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0]G
} 1
test utf-6.11.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xA0\xA0\x00]
} 1
test utf-6.11.1 {Tcl_UtfNext} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xA0\xA0\x00]
} 2
test utf-6.12 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0\xD0]
} 1
test utf-6.13 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0\xE8]

} 1
test utf-6.28 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\xF2]
} 1
test utf-6.29 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\xF8]
} 1
test utf-6.30.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xF2]
} 1
test utf-6.30.1 {Tcl_UtfNext} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xF2\x00]
} 1
test utf-6.31 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2]G
} 1
test utf-6.32.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xF2\xA0]
} 1
test utf-6.32.1 {Tcl_UtfNext} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xF2\xA0\x00]
} 1
test utf-6.33 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xD0]
} 1
test utf-6.34 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xE8]

} 3
test utf-6.67 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext 蠠[testbytestring \xF8]
} 3
test utf-6.68 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xA0]G
} 1
test utf-6.69.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0]
} 1
test utf-6.69.1 {Tcl_UtfNext} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0]
} 4
test utf-6.70 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xA0\xD0]
} 1
test utf-6.71 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xA0\xE8]
} 1
test utf-6.72 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xA0\xF2]
} 1
test utf-6.73 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xA0\xF8]
} 1
test utf-6.74.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0]G
} 1
test utf-6.74.1 {Tcl_UtfNext} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0]G
} 4
test utf-6.75.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xA0]
} 1
test utf-6.75.1 {Tcl_UtfNext} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xA0]
} 4
test utf-6.76.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xD0]
} 1
test utf-6.76.1 {Tcl_UtfNext} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xD0]
} 4
test utf-6.77.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xE8]
} 1
test utf-6.77.1 {Tcl_UtfNext} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xE8]
} 4
test utf-6.78.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xF2]
} 1
test utf-6.78.1 {Tcl_UtfNext} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xF2]
} 4
test utf-6.79.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0G\xF8]
} 1
test utf-6.79.1 {Tcl_UtfNext} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0G\xF8]
} 4
test utf-6.80 {Tcl_UtfNext - overlong sequences} testutfnext {
    testutfnext \x00
} 2
test utf-6.81 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring} {
    testutfnext [testbytestring \xC0\x81]

} 1
test utf-6.85 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE0\xA0\x80]
} 3
test utf-6.86 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF0\x80\x80\x80]
} 1
test utf-6.87.0 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xF0\x90\x80\x80]
} 1
test utf-6.87.1 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xF0\x90\x80\x80]
} 4
test utf-6.88.0 {Tcl_UtfNext, pointing to 2th byte of 3-byte valid sequence} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xA0\xA0\x00]
} 1
test utf-6.88.1 {Tcl_UtfNext, pointing to 2th byte of 3-byte valid sequence} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xA0\xA0\x00]
} 2
test utf-6.89.0 {Tcl_UtfNext, pointing to 2th byte of 3-byte invalid sequence} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \x80\x80\x00]
} 1
test utf-6.89.1 {Tcl_UtfNext, pointing to 2th byte of 3-byte invalid sequence} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \x80\x80\x00]
} 2
test utf-6.90.0 {Tcl_UtfNext, validity check [493dccc2de]} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xF4\x8F\xBF\xBF]
} 1
test utf-6.90.1 {Tcl_UtfNext, validity check [493dccc2de]} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xF4\x8F\xBF\xBF]
} 4
test utf-6.91 {Tcl_UtfNext, validity check [493dccc2de]} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF4\x90\x80\x80]
} 1
test utf-6.92.0 {Tcl_UtfNext, pointing to 2th byte of 4-byte valid sequence} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xA0\xA0\xA0]
} 1
test utf-6.92.1 {Tcl_UtfNext, pointing to 2th byte of 4-byte valid sequence} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xA0\xA0\xA0]
} 3
test utf-6.93.0 {Tcl_UtfNext, pointing to 2th byte of 4-byte invalid sequence} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \x80\x80\x80]
} 1
test utf-6.93.1 {Tcl_UtfNext, pointing to 2th byte of 4-byte invalid sequence} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \x80\x80\x80]
} 3
test utf-6.94.0 {Tcl_UtfNext, pointing to 2th byte of 5-byte invalid sequence} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \xA0\xA0\xA0\xA0]
} 1
test utf-6.94.1 {Tcl_UtfNext, pointing to 2th byte of 5-byte invalid sequence} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \xA0\xA0\xA0\xA0]
} 3
test utf-6.95.0 {Tcl_UtfNext, pointing to 2th byte of 5-byte invalid sequence} {testutfnext testbytestring ucs2} {
    testutfnext [testbytestring \x80\x80\x80\x80]
} 1
test utf-6.95.1 {Tcl_UtfNext, pointing to 2th byte of 5-byte invalid sequence} {testutfnext testbytestring fullutf} {
    testutfnext [testbytestring \x80\x80\x80\x80]
} 3

test utf-7.1 {Tcl_UtfPrev} testutfprev {
    testutfprev {}
} 0
test utf-7.2 {Tcl_UtfPrev} testutfprev {

} 2
test utf-7.9.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8\xA0\xA0\xA0] 3
} 2
test utf-7.9.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8\xA0\xF8\xA0] 3
} 2
test utf-7.10.0 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF2\xA0]
} 2
test utf-7.10.1 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF2\xA0]
} 1
test utf-7.10.2 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xA0] 3
} 2
test utf-7.10.3 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xA0] 3
} 1
test utf-7.10.4 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF2\xA0\xF8\xA0] 3
} 2
test utf-7.10.5 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF2\xA0\xF8\xA0] 3
} 1
test utf-7.11 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE8\xA0]
} 1
test utf-7.11.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE8\xA0\xA0\xA0] 3

} 3
test utf-7.14.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8\xA0\xA0\xA0] 4
} 3
test utf-7.14.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8\xA0\xA0\xF8] 4
} 3
test utf-7.15.0 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF2\xA0\xA0]
} 3
test utf-7.15.1 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF2\xA0\xA0]
} 1
test utf-7.15.2 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xA0] 4
} 3
test utf-7.15.3 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xA0] 4
} 1
test utf-7.15.4 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xF8] 4
} 3
test utf-7.15.5 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xF8] 4
} 1
test utf-7.16 {Tcl_UtfPrev} testutfprev {
    testutfprev A蠠
} 1
test utf-7.16.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE8\xA0\xA0\xA0] 4

} 3
test utf-7.18.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev [testbytestring A\xA0\xA0\xA0\xF8] 4
} 3
test utf-7.19 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev [testbytestring A\xF8\xA0\xA0\xA0]
} 4
test utf-7.20.0 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev [testbytestring A\xF2\xA0\xA0\xA0]
} 4
test utf-7.20.1 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev [testbytestring A\xF2\xA0\xA0\xA0]
} 1
test utf-7.21 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE8\xA0\xA0\xA0]
} 4
test utf-7.22 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xD0\xA0\xA0\xA0]

} 1
test utf-7.37 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE0\xA0\x80] 3
} 1
test utf-7.38 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE0\xA0\x80] 2
} 1
test utf-7.39.0 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF0\x90\x80\x80]
} 4
test utf-7.39.1 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF0\x90\x80\x80]
} 1
test utf-7.40.0 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF0\x90\x80\x80] 4
} 3
test utf-7.40.1 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF0\x90\x80\x80] 4
} 1
test utf-7.41.0 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF0\x90\x80\x80] 3
} 2
test utf-7.41.1 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF0\x90\x80\x80] 3
} 1
test utf-7.42 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF0\x90\x80\x80] 2
} 1
test utf-7.43 {Tcl_UtfPrev -- no lead byte at start}  {testutfprev testbytestring} {
    testutfprev [testbytestring \xA0]

} 0
test utf-7.47.1 {Tcl_UtfPrev, pointing to 3th byte of 3-byte valid sequence} testutfprev {
    testutfprev 蠠 2
} 0
test utf-7.47.2 {Tcl_UtfPrev, pointing to 3th byte of 3-byte invalid sequence} {testutfprev testbytestring} {
    testutfprev [testbytestring \xE8\xA0\x00] 2
} 0
test utf-7.48.0 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF]
} 4
test utf-7.48.1 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF]
} 1
test utf-7.48.2 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF] 4
} 3
test utf-7.48.3 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF] 4
} 1
test utf-7.48.4 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF] 3
} 2
test utf-7.48.5 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF] 3
} 1
test utf-7.48.6 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF] 2
} 1
test utf-7.49.0 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF4\x90\x80\x80]
} 4
test utf-7.49.1 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF4\x90\x80\x80] 4
} 3
test utf-7.49.2 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF4\x90\x80\x80] 3

} 乎
test utf-8.3 {Tcl_UniCharAtIndex: index > 0} {
    string index abcd 2
} c
test utf-8.4 {Tcl_UniCharAtIndex: index > 0} {
    string index 乎ɚÿՃ 2
} ÿ
test utf-8.5.0 {Tcl_UniCharAtIndex: high surrogate} ucs2 {
    string index \uD842 0
} \uD842
test utf-8.5.1 {Tcl_UniCharAtIndex: high surrogate} utf32 {
    string index \uD842 0
} \uD842
test utf-8.5.2 {Tcl_UniCharAtIndex: high surrogate} utf16 {
    string index \uD842 0
} \uD842
test utf-8.6 {Tcl_UniCharAtIndex: low surrogate} {
    string index \uDC42 0
} \uDC42
test utf-8.7.0 {Tcl_UniCharAtIndex: Emoji} ucs2 {
    string index \uD83D\uDE00G 0
} \uD83D
test utf-8.7.1 {Tcl_UniCharAtIndex: Emoji} utf32 {
    string index 😀G 0
} 😀
test utf-8.7.2 {Tcl_UniCharAtIndex: Emoji} utf16 {
    string index 😀G 0
} 😀
test utf-8.8.0 {Tcl_UniCharAtIndex: Emoji} ucs2 {
    string index \uD83D\uDE00G 1
} \uDE00
test utf-8.8.1 {Tcl_UniCharAtIndex: Emoji} utf32 {
    string index 😀G 1
} G
test utf-8.8.2 {Tcl_UniCharAtIndex: Emoji} utf16 {
    string index 😀G 1
} {}
test utf-8.9.0 {Tcl_UniCharAtIndex: Emoji} ucs2 {
    string index \uD83D\uDE00G 2
} G
test utf-8.9.1 {Tcl_UniCharAtIndex: Emoji} utf32 {
    string index 😀G 2
} {}
test utf-8.9.2 {Tcl_UniCharAtIndex: Emoji} utf16 {
    string index 😀G 2
} G
test utf-8.10.0 {Tcl_UniCharAtIndex: Emoji} ucs2 {
    string index 😀G 0
} \uFFFD
test utf-8.10.1 {Tcl_UniCharAtIndex: Emoji} utf32 {
    string index 😀G 0
} 😀
test utf-8.10.2 {Tcl_UniCharAtIndex: Emoji} utf16 {
    string index 😀G 0
} 😀
test utf-8.11.0 {Tcl_UniCharAtIndex: Emoji} ucs2 {
    string index 😀G 1
} G
test utf-8.11.1 {Tcl_UniCharAtIndex: Emoji} utf32 {
    string index 😀G 1
} G
test utf-8.11.2 {Tcl_UniCharAtIndex: Emoji} utf16 {
    string index 😀G 1
} {}
test utf-8.12.0 {Tcl_UniCharAtIndex: Emoji} ucs2 {
    string index 😀G 2
} {}
test utf-8.12.1 {Tcl_UniCharAtIndex: Emoji} utf32 {
    string index 😀G 2
} {}
test utf-8.12.2 {Tcl_UniCharAtIndex: Emoji} utf16 {
    string index 😀G 2
} G

test utf-9.1 {Tcl_UtfAtIndex: index = 0} {
    string range abcd 0 2
} abc
test utf-9.2 {Tcl_UtfAtIndex: index > 0} {
    string range 乎ɚÿՃklmnop 1 5
} ɚÿՃkl
test utf-9.3.0 {Tcl_UtfAtIndex: index = 0, Emoji} ucs2 {
    string range \uD83D\uDE00G 0 0
} \uD83D
test utf-9.3.1 {Tcl_UtfAtIndex: index = 0, Emoji} utf32 {
    string range 😀G 0 0
} 😀
test utf-9.3.2 {Tcl_UtfAtIndex: index = 0, Emoji} utf16 {
    string range 😀G 0 0
} 😀
test utf-9.4.0 {Tcl_UtfAtIndex: index > 0, Emoji} ucs2 {
    string range \uD83D\uDE00G 1 1
} \uDE00
test utf-9.4.1 {Tcl_UtfAtIndex: index > 0, Emoji} utf32 {
    string range 😀G 1 1
} G
test utf-9.4.2 {Tcl_UtfAtIndex: index > 0, Emoji} utf16 {
    string range 😀G 1 1
} {}
test utf-9.5.0 {Tcl_UtfAtIndex: index > 0, Emoji} ucs2 {
    string range \uD83D\uDE00G 2 2
} G
test utf-9.5.1 {Tcl_UtfAtIndex: index > 0, Emoji} utf32 {
    string range 😀G 2 2
} {}
test utf-9.5.2 {Tcl_UtfAtIndex: index > 0, Emoji} utf16 {
    string range 😀G 2 2
} G
test utf-9.6.0 {Tcl_UtfAtIndex: index = 0, Emoji} ucs2 {
    string range 😀G 0 0
} \uFFFD
test utf-9.6.1 {Tcl_UtfAtIndex: index = 0, Emoji} utf32 {
    string range 😀G 0 0
} 😀
test utf-9.6.2 {Tcl_UtfAtIndex: index = 0, Emoji} utf16 {
    string range 😀G 0 0
} 😀
test utf-9.7.0 {Tcl_UtfAtIndex: index > 0, Emoji} ucs2 {
    string range 😀G 1 1
} G
test utf-9.7.1 {Tcl_UtfAtIndex: index > 0, Emoji} utf32 {
    string range 😀G 1 1
} G
test utf-9.7.2 {Tcl_UtfAtIndex: index > 0, Emoji} utf16 {
    string range 😀G 1 1
} {}
test utf-9.8.0 {Tcl_UtfAtIndex: index > 0, Emoji} ucs2 {
    string range 😀G 2 2
} {}
test utf-9.8.1 {Tcl_UtfAtIndex: index > 0, Emoji} utf32 {
    string range 😀G 2 2
} {}
test utf-9.8.2 {Tcl_UtfAtIndex: index > 0, Emoji} utf16 {
    string range 😀G 2 2
} G

test utf-10.1 {Tcl_UtfBackslash: dst == NULL} {
    set x \n
} {
}
test utf-10.2 {Tcl_UtfBackslash: \u subst} testbytestring {
    expr {"\uA2" eq [testbytestring \xC2\xA2]}
} 1
test utf-10.3 {Tcl_UtfBackslash: longer \u subst} testbytestring {
    expr {"\u4E21" eq [testbytestring \xE4\xB8\xA1]}
} 1
test utf-10.4 {Tcl_UtfBackslash: stops at first non-hex} testbytestring {
    expr {"\u4E2k" eq "[testbytestring \xD3\xA2]k"}
} 1
test utf-10.5 {Tcl_UtfBackslash: stops after 4 hex chars} testbytestring {
    expr {"\u4E216" eq "[testbytestring \xE4\xB8\xA1]6"}
} 1
test utf-10.6 {Tcl_UtfBackslash: stops after 5 hex chars} {fullutf testbytestring} {
    expr {"\U1E2165" eq "[testbytestring \xF0\x9E\x88\x96]5"}
} 1
test utf-10.7 {Tcl_UtfBackslash: stops after 6 hex chars} {fullutf testbytestring} {
    expr {"\U10E2165" eq "[testbytestring \xF4\x8E\x88\x96]5"}
} 1

proc bsCheck {char num {constraints {}}} {
    global errNum
    test utf-10.$errNum {backslash substitution} $constraints {
	scan $char %c value

bsCheck \14	12
bsCheck \141	97
bsCheck b\0	98
bsCheck \x	120
bsCheck \xa	10
bsCheck \xA	10
bsCheck \x41	65
bsCheck \x541	65	pre388	;# == \x41
bsCheck \x541	84	!pre388	;# == \x54 1
bsCheck \u	117
bsCheck \uk	117
bsCheck \u41	65
bsCheck \ua	10
bsCheck \uA	10
bsCheck \340	224
bsCheck \uA1	161
bsCheck \u4E21	20001
bsCheck \741    225	pre388	;# == \341
bsCheck \741    60	!pre388	;# == \74 1
bsCheck \U      85
bsCheck \Uk     85
bsCheck \U41    65			Uesc
bsCheck \Ua     10			Uesc
bsCheck \UA     10			Uesc
bsCheck \UA1    161			Uesc
bsCheck \U4E21  20001			Uesc
bsCheck \U004E21        20001		Uesc
bsCheck \U00004E21      20001		Uesc
bsCheck \U0000004E21    78		Uesc
bsCheck \U00110000      69632		fullutf
bsCheck \U01100000      69632		fullutf
bsCheck \U11000000      69632		fullutf
bsCheck \U0010FFFF      1114111		fullutf
bsCheck \U010FFFF0      1114111		fullutf
bsCheck \U10FFFF00      1114111		fullutf
bsCheck \UFFFFFFFF      1048575		fullutf

test utf-11.1 {Tcl_UtfToUpper} {
    string toupper {}
} {}
test utf-11.2 {Tcl_UtfToUpper} {
    string toupper abc
} ABC
test utf-11.3 {Tcl_UtfToUpper} {
    string toupper \xE3gh
} \xC3GH
test utf-11.4 {Tcl_UtfToUpper} {
    string toupper ǣgh
} ǢGH
test utf-11.5 {Tcl_UtfToUpper Georgian (new in Unicode 11)} {
    string toupper აᲐ
} ᲐᲐ
test utf-11.6 {Tcl_UtfToUpper beyond U+FFFF} fullutf {
    string toupper 𐐨
} 𐐀
test utf-11.7 {Tcl_UtfToUpper beyond U+FFFF} fullutf {
    string toupper 𐐨
} 𐐀
test utf-11.8 {Tcl_UtfToUpper low/high surrogate)} {
    string toupper \uDC24\uD824
} \uDC24\uD824

test utf-12.1 {Tcl_UtfToLower} {

} ǣgh
test utf-12.5 {Tcl_UtfToLower Georgian (new in Unicode 11)} {
    string tolower აᲐ
} აა
test utf-12.6 {Tcl_UtfToLower low/high surrogate)} {
    string tolower \uDC24\uD824
} \uDC24\uD824
test utf-12.7 {Tcl_UtfToLower beyond U+FFFF} fullutf {
    string tolower 𐐀
} 𐐨
test utf-12.8 {Tcl_UtfToLower beyond U+FFFF} fullutf {
    string tolower 𐐀
} 𐐨

test utf-13.1 {Tcl_UtfToTitle} {
    string totitle {}
} {}
test utf-13.2 {Tcl_UtfToTitle} {

} აᲐ
test utf-13.6 {Tcl_UtfToTitle Georgian (new in Unicode 11)} {
    string totitle Აა
} Აა
test utf-13.7 {Tcl_UtfToTitle low/high surrogate)} {
    string totitle \uDC24\uD824
} \uDC24\uD824
test utf-13.8 {Tcl_UtfToTitle beyond U+FFFF} fullutf {
    string totitle 𐐨𐐀
} 𐐀𐐨
test utf-13.9 {Tcl_UtfToTitle beyond U+FFFF} fullutf {
    string totitle 𐐨𐐀
} 𐐀𐐨

test utf-14.1 {Tcl_UtfNcasecmp} {
    string compare -nocase a b
} -1
test utf-14.2 {Tcl_UtfNcasecmp} {

test utf-19.1 {TclUniCharLen} -body {
    list [regexp \\d abc456def foo] $foo
} -cleanup {
    unset -nocomplain foo
} -result {1 4}

test utf-20.1 {TclUniCharNcmp} utf32 {
    string compare [string range [format %c 0xFFFF] 0 0] [string range [format %c 0x10000] 0 0]
} -1
test utf-20.2 {[4c591fa487] TclUniCharNcmp/TclUtfNcmp} utf32 {
    set one [format %c 0xFFFF]
    set two [format %c 0x10000]
    set first [string compare $one $two]
    string range $one 0 0
    string range $two 0 0
    set second [string compare $one $two]
    expr {($first == $second) ? "agree" : "disagree"}

    incr count
}
variable count 1
UniCharCaseCmpTest < a b
UniCharCaseCmpTest > b a
UniCharCaseCmpTest > B a
UniCharCaseCmpTest > aBcB abca
UniCharCaseCmpTest < \uFFFF [format %c 0x10000] utf32
UniCharCaseCmpTest < \uFFFF \U10000		utf32
UniCharCaseCmpTest > [format %c 0x10000] \uFFFF	utf32
UniCharCaseCmpTest > \U10000 \uFFFF		utf32


test utf-26.1 {Tcl_UniCharDString} -setup {
    testobj freeallvars
} -constraints {teststringobj testbytestring} -cleanup {
    testobj freeallvars
} -body {

#
# NOTE: For older (Visual C++ 6 or the 2003 SDK), to use the Platform
# SDK (not expressly needed), run setenv.bat after
# vcvars32.bat according to the instructions for it.  This can also
# turn on the 64-bit compiler, if your SDK has it.
#
# Basic macros and options usable on the commandline (see rules.vc for more info):
#	OPTS=msvcrt,noembed,nothreads,pdbs,profile,static,symbols,thrdalloc,time64bit,unchecked,utf16,none
#		Sets special options for the core.  The default is for none.
#		Any combination of the above may be used (comma separated).
#		'none' will over-ride everything to nothing.
#
# 		noembed   = Without this option, the Tcl core library scripts
#			    are embedded into the executable if "static" is
#			    specified in OPTS, or into the DLL otherwise. If

#		symbols   = Adds symbols for step debugging.
#		thrdalloc = Use the thread allocator (shared global free pool).
#		time64bit = Forces a build using 64-bit time_t for 32-bit build
#			    (CRT library should support this).
#		unchecked = Allows a symbols build to not use the debug
#			    enabled runtime (msvcrt.dll not msvcrtd.dll
#			    or libcmt.lib not libcmtd.lib).
#		utf16     = Forces a build using UTF-16 representation internally.
#
#	STATS=compdbg,memdbg,none
#		Sets optional memory and bytecode compiler debugging code added
#		to the core.  The default is for none.  Any combination of the
#		above may be used (comma separated).  'none' will over-ride
#		everything to nothing.
#

# UNCHECKED - 1 -> when doing a debug build with symbols, use the release
#           C runtime, 0 -> use the debug C runtime.
# USE_STUBS - 1 -> compile to use stubs interfaces, 0 -> direct linking
# CONFIG_CHECK - 1 -> check current build configuration against Tcl
#           configuration (ignored for Tcl itself)
# _USE_64BIT_TIME_T - forces a build using 64-bit time_t for 32-bit build
#           (CRT library should support this, not needed for Tcl 9.x)
# TCL_UTF_MAX=3 - forces a build using UTF-16 internally (not recommended).
# Further, LINKERFLAGS are modified based on above.

# Default values for all the above
STATIC_BUILD	= 0
TCL_THREADS	= 1
DEBUG		= 0
SYMBOLS		= 0

!endif

!if $(TCL_MAJOR_VERSION) == 8
!if [nmakehlp -f $(OPTS) "time64bit"]
!message *** Force 64-bit time_t
_USE_64BIT_TIME_T = 1
!endif

!if [nmakehlp -f $(OPTS) "utf16"]
!message *** Force UTF-16 internally
TCL_UTF_MAX = 3
!endif
!endif

# Yes, it's weird that the "symbols" option controls DEBUG and
# the "pdbs" option controls SYMBOLS. That's historical.
!if [nmakehlp -f $(OPTS) "symbols"]
!message *** Doing symbols
DEBUG		= 1

!if "$(_USE_64BIT_TIME_T)" == "1"
OPTDEFINES	= $(OPTDEFINES) /D_USE_64BIT_TIME_T=1
!endif

# _ATL_XP_TARGETING - Newer SDK's need this to build for XP
COMPILERFLAGS  = /D_ATL_XP_TARGETING
!endif
!if "$(TCL_UTF_MAX)" == "3"
OPTDEFINES	= $(OPTDEFINES) /DTCL_UTF_MAX=3
!endif
!if "$(TCL_BUILD_FOR)" == "8"
OPTDEFINES	= $(OPTDEFINES) /DTCL_MAJOR_VERSION=8
!endif

# Like the TEA system only set this non empty for non-Tk extensions
# Note: some extensions use PACKAGE_NAME and others use PACKAGE_TCLNAME
# so we pass both