Tcl Source Code

sudo: false
language: c

matrix:
  include:
    - os: linux
      dist: trusty
      compiler: clang
      env:
        - BUILD_DIR=unix
    - os: linux
      dist: trusty
      compiler: clang
      env:
        - CFGOPT=--disable-shared
        - BUILD_DIR=unix
    - os: linux
      dist: trusty
      compiler: gcc
      env:
        - BUILD_DIR=unix
    - os: linux
      dist: trusty
      compiler: gcc
      env:
        - CFGOPT=--disable-shared
        - BUILD_DIR=unix
    - os: linux
      dist: trusty
      compiler: gcc-4.9
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-4.9
      env:
        - BUILD_DIR=unix
    - os: linux
      dist: trusty
      compiler: gcc-5
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-5
      env:
        - BUILD_DIR=unix
    - os: linux
      dist: trusty
      compiler: gcc-6
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-6
      env:
        - BUILD_DIR=unix
    - os: linux
      dist: trusty
      compiler: gcc-7
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-7
................................................................................
        - NO_DIRECT_CONFIGURE=1
    - os: osx
      osx_image: xcode9
      env:
        - BUILD_DIR=macosx
        - NO_DIRECT_CONFIGURE=1
    - os: osx
      osx_image: xcode10
      env:
        - BUILD_DIR=macosx
        - NO_DIRECT_CONFIGURE=1
### C builds not currently supported on Windows instances
#    - os: windows
#      env:
#        - BUILD_DIR=win
### ... so proxy with a Mingw cross-compile
# Test with mingw-w64 (32 bit)
    - os: linux
      dist: trusty
      compiler: i686-w64-mingw32-gcc
      addons:
        apt:
          packages:
            - gcc-mingw-w64-base
            - binutils-mingw-w64-i686
            - gcc-mingw-w64-i686
................................................................................
            - wine
      env:
        - BUILD_DIR=win
        - CFGOPT=--host=i686-w64-mingw32
        - NO_DIRECT_TEST=1
# Test with mingw-w64 (64 bit)
    - os: linux
      dist: trusty
      compiler: x86_64-w64-mingw32-gcc
      addons:
        apt:
          packages:
            - gcc-mingw-w64-base
            - binutils-mingw-w64-x86-64
            - gcc-mingw-w64-x86-64

sudo: false
language: c

matrix:
  include:
    - os: linux
      dist: xenial
      compiler: clang
      env:
        - BUILD_DIR=unix
    - os: linux
      dist: xenial
      compiler: clang
      env:
        - CFGOPT=--disable-shared
        - BUILD_DIR=unix
    - os: linux
      dist: xenial
      compiler: gcc
      env:
        - BUILD_DIR=unix
    - os: linux
      dist: xenial
      compiler: gcc
      env:
        - CFGOPT=--disable-shared
        - BUILD_DIR=unix
    - os: linux
      dist: xenial
      compiler: gcc-4.9
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-4.9
      env:
        - BUILD_DIR=unix
    - os: linux
      dist: xenial
      compiler: gcc-5
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-5
      env:
        - BUILD_DIR=unix
    - os: linux
      dist: xenial
      compiler: gcc-6
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-6
      env:
        - BUILD_DIR=unix
    - os: linux
      dist: xenial
      compiler: gcc-7
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-7
................................................................................
        - NO_DIRECT_CONFIGURE=1
    - os: osx
      osx_image: xcode9
      env:
        - BUILD_DIR=macosx
        - NO_DIRECT_CONFIGURE=1
    - os: osx
      osx_image: xcode10.2
      env:
        - BUILD_DIR=macosx
        - NO_DIRECT_CONFIGURE=1
### C builds not currently supported on Windows instances
#    - os: windows
#      env:
#        - BUILD_DIR=win
### ... so proxy with a Mingw cross-compile
# Test with mingw-w64 (32 bit)
    - os: linux
      dist: xenial
      compiler: i686-w64-mingw32-gcc
      addons:
        apt:
          packages:
            - gcc-mingw-w64-base
            - binutils-mingw-w64-i686
            - gcc-mingw-w64-i686
................................................................................
            - wine
      env:
        - BUILD_DIR=win
        - CFGOPT=--host=i686-w64-mingw32
        - NO_DIRECT_TEST=1
# Test with mingw-w64 (64 bit)
    - os: linux
      dist: xenial
      compiler: x86_64-w64-mingw32-gcc
      addons:
        apt:
          packages:
            - gcc-mingw-w64-base
            - binutils-mingw-w64-x86-64
            - gcc-mingw-w64-x86-64

    if (objc != 2) {
	MathFuncWrongNumArgs(interp, 2, objc, objv);
	return TCL_ERROR;
    }
    if (Tcl_GetDoubleFromObj(interp, objv[1], &dResult) != TCL_OK) {
#ifdef ACCEPT_NAN
	if (objv[1]->typePtr == &tclDoubleType) {
	    Tcl_SetObjResult(interp, objv[1]);
	    return TCL_OK;
	}
#endif
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, Tcl_NewDoubleObj(dResult));

    if (objc != 2) {
	MathFuncWrongNumArgs(interp, 2, objc, objv);
	return TCL_ERROR;
    }
    if (Tcl_GetDoubleFromObj(interp, objv[1], &dResult) != TCL_OK) {
#ifdef ACCEPT_NAN
	if (TclHasIntRep(objv[1], &tclDoubleType)) {
	    Tcl_SetObjResult(interp, objv[1]);
	    return TCL_OK;
	}
#endif
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, Tcl_NewDoubleObj(dResult));

#define SET_BYTEARRAY(irPtr, baPtr) \
		(irPtr)->twoPtrValue.ptr1 = (baPtr)
 
int
TclIsPureByteArray(
    Tcl_Obj * objPtr)
{
    return objPtr->typePtr == &properByteArrayType;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_NewByteArrayObj --
 *
................................................................................
    int improper = 0;
    const char *src, *srcEnd;
    unsigned char *dst;
    Tcl_UniChar ch = 0;
    ByteArray *byteArrayPtr;
    Tcl_ObjIntRep ir;

    if (objPtr->typePtr == &properByteArrayType) {
	return TCL_OK;
    }
    if (objPtr->typePtr == &tclByteArrayType) {
	return TCL_OK;
    }

    src = TclGetStringFromObj(objPtr, &length);
    srcEnd = src + length;

    byteArrayPtr = Tcl_Alloc(BYTEARRAY_SIZE(length));
................................................................................

    srcArrayPtr = GET_BYTEARRAY(TclFetchIntRep(srcPtr, &tclByteArrayType));
    length = srcArrayPtr->used;

    copyArrayPtr = ckalloc(BYTEARRAY_SIZE(length));
    copyArrayPtr->used = length;
    copyArrayPtr->allocated = length;
    memcpy(copyArrayPtr->bytes, srcArrayPtr->bytes, (size_t) length);

    SET_BYTEARRAY(&ir, copyArrayPtr);
    Tcl_StoreIntRep(copyPtr, &tclByteArrayType, &ir);
}

static void
DupProperByteArrayInternalRep(
................................................................................

    srcArrayPtr = GET_BYTEARRAY(TclFetchIntRep(srcPtr, &properByteArrayType));
    length = srcArrayPtr->used;

    copyArrayPtr = Tcl_Alloc(BYTEARRAY_SIZE(length));
    copyArrayPtr->used = length;
    copyArrayPtr->allocated = length;
    memcpy(copyArrayPtr->bytes, srcArrayPtr->bytes, (size_t) length);

    SET_BYTEARRAY(&ir, copyArrayPtr);
    Tcl_StoreIntRep(copyPtr, &properByteArrayType, &ir);
}
 
/*
 *----------------------------------------------------------------------
................................................................................
 badIndex:
    errorString = "not enough arguments for all format specifiers";
    goto error;

 badField:
    {
	Tcl_UniChar ch = 0;
	char buf[TCL_UTF_MAX + 1];

	TclUtfToUniChar(errorString, &ch);
	buf[Tcl_UniCharToUtf(ch, buf)] = '\0';
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"bad field specifier \"%s\"", buf));
	return TCL_ERROR;
    }
................................................................................
 badIndex:
    errorString = "not enough arguments for all format specifiers";
    goto error;

 badField:
    {
	Tcl_UniChar ch = 0;
	char buf[TCL_UTF_MAX + 1];

	TclUtfToUniChar(errorString, &ch);
	buf[Tcl_UniCharToUtf(ch, buf)] = '\0';
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"bad field specifier \"%s\"", buf));
	return TCL_ERROR;
    }

#define SET_BYTEARRAY(irPtr, baPtr) \
		(irPtr)->twoPtrValue.ptr1 = (baPtr)
 
int
TclIsPureByteArray(
    Tcl_Obj * objPtr)
{
    return TclHasIntRep(objPtr, &properByteArrayType);
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_NewByteArrayObj --
 *
................................................................................
    int improper = 0;
    const char *src, *srcEnd;
    unsigned char *dst;
    Tcl_UniChar ch = 0;
    ByteArray *byteArrayPtr;
    Tcl_ObjIntRep ir;

    if (TclHasIntRep(objPtr, &properByteArrayType)) {
	return TCL_OK;
    }
    if (TclHasIntRep(objPtr, &tclByteArrayType)) {
	return TCL_OK;
    }

    src = TclGetStringFromObj(objPtr, &length);
    srcEnd = src + length;

    byteArrayPtr = Tcl_Alloc(BYTEARRAY_SIZE(length));
................................................................................

    srcArrayPtr = GET_BYTEARRAY(TclFetchIntRep(srcPtr, &tclByteArrayType));
    length = srcArrayPtr->used;

    copyArrayPtr = ckalloc(BYTEARRAY_SIZE(length));
    copyArrayPtr->used = length;
    copyArrayPtr->allocated = length;
    memcpy(copyArrayPtr->bytes, srcArrayPtr->bytes, length);

    SET_BYTEARRAY(&ir, copyArrayPtr);
    Tcl_StoreIntRep(copyPtr, &tclByteArrayType, &ir);
}

static void
DupProperByteArrayInternalRep(
................................................................................

    srcArrayPtr = GET_BYTEARRAY(TclFetchIntRep(srcPtr, &properByteArrayType));
    length = srcArrayPtr->used;

    copyArrayPtr = Tcl_Alloc(BYTEARRAY_SIZE(length));
    copyArrayPtr->used = length;
    copyArrayPtr->allocated = length;
    memcpy(copyArrayPtr->bytes, srcArrayPtr->bytes, length);

    SET_BYTEARRAY(&ir, copyArrayPtr);
    Tcl_StoreIntRep(copyPtr, &properByteArrayType, &ir);
}
 
/*
 *----------------------------------------------------------------------
................................................................................
 badIndex:
    errorString = "not enough arguments for all format specifiers";
    goto error;

 badField:
    {
	Tcl_UniChar ch = 0;
	char buf[TCL_UTF_MAX + 1] = "";

	TclUtfToUniChar(errorString, &ch);
	buf[Tcl_UniCharToUtf(ch, buf)] = '\0';
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"bad field specifier \"%s\"", buf));
	return TCL_ERROR;
    }
................................................................................
 badIndex:
    errorString = "not enough arguments for all format specifiers";
    goto error;

 badField:
    {
	Tcl_UniChar ch = 0;
	char buf[TCL_UTF_MAX + 1] = "";

	TclUtfToUniChar(errorString, &ch);
	buf[Tcl_UniCharToUtf(ch, buf)] = '\0';
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"bad field specifier \"%s\"", buf));
	return TCL_ERROR;
    }

    }

    /*
     * fields.seconds could be an unsigned number that overflowed. Make sure
     * that it isn't.
     */

    if (objv[1]->typePtr == &tclBignumType) {
	Tcl_SetObjResult(interp, literals[LIT_INTEGER_VALUE_TOO_LARGE]);
	return TCL_ERROR;
    }

    /*
     * Convert UTC time to local.
     */

    }

    /*
     * fields.seconds could be an unsigned number that overflowed. Make sure
     * that it isn't.
     */

    if (TclHasIntRep(objv[1], &tclBignumType)) {
	Tcl_SetObjResult(interp, literals[LIT_INTEGER_VALUE_TOO_LARGE]);
	return TCL_ERROR;
    }

    /*
     * Convert UTC time to local.
     */

	for ( ; stringPtr < end; stringPtr += len) {
	    int fullchar;
	    len = TclUtfToUniChar(stringPtr, &ch);
	    fullchar = ch;

#if TCL_UTF_MAX <= 4
	    if (!len) {
		len += TclUtfToUniChar(stringPtr, &ch);
		fullchar = (((fullchar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
	    }
#endif

	    /*
	     * Assume Tcl_UniChar is an integral type...
	     */
................................................................................
	 */

	if (TclIsPureByteArray(objv[1])) {
	    unsigned char uch = (unsigned char) ch;

	    Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(&uch, 1));
	} else {
	    char buf[4];

	    end = Tcl_UniCharToUtf(ch, buf);
	    if (!end) {
		end = Tcl_UniCharToUtf(-1, buf);
	    }
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, end));
	}
    }
    return TCL_OK;
}
 
................................................................................
	}
	break;
    }
    case STR_IS_DIGIT:
	chcomp = Tcl_UniCharIsDigit;
	break;
    case STR_IS_DOUBLE: {
	if ((objPtr->typePtr == &tclDoubleType) ||
		(objPtr->typePtr == &tclIntType) ||
		(objPtr->typePtr == &tclBignumType)) {
	    break;
	}
	string1 = TclGetStringFromObj(objPtr, &length1);
	if (length1 == 0) {
	    if (strict) {
		result = 0;
	    }
................................................................................
	break;
    }
    case STR_IS_GRAPH:
	chcomp = Tcl_UniCharIsGraph;
	break;
    case STR_IS_INT:
    case STR_IS_ENTIER:
	if ((objPtr->typePtr == &tclIntType) ||
		(objPtr->typePtr == &tclBignumType)) {
	    break;
	}
	string1 = TclGetStringFromObj(objPtr, &length1);
	if (length1 == 0) {
	    if (strict) {
		result = 0;
	    }
................................................................................
	}
	end = string1 + length1;
	for (; string1 < end; string1 += length2, failat++) {
	    int fullchar;
	    length2 = TclUtfToUniChar(string1, &ch);
	    fullchar = ch;
#if TCL_UTF_MAX <= 4
	    if (!length2) {
	    	length2 = TclUtfToUniChar(string1, &ch);
	    	fullchar = (((fullchar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
	    }
#endif
	    if (!chcomp(fullchar)) {
		result = 0;
		break;
	    }
................................................................................

    /*
     * This test is tricky, but has to be that way or you get other strange
     * inconsistencies (see test string-10.20.1 for illustration why!)
     */

    if (!TclHasStringRep(objv[objc-2])
	    && (objv[objc-2]->typePtr == &tclDictType)){
	int i, done;
	Tcl_DictSearch search;

	/*
	 * We know the type exactly, so all dict operations will succeed for
	 * sure. This shortens this code quite a bit.
	 */

	for ( ; stringPtr < end; stringPtr += len) {
	    int fullchar;
	    len = TclUtfToUniChar(stringPtr, &ch);
	    fullchar = ch;

#if TCL_UTF_MAX <= 4
	    if ((ch >= 0xD800) && (len < 3)) {
		len += TclUtfToUniChar(stringPtr + len, &ch);
		fullchar = (((fullchar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
	    }
#endif

	    /*
	     * Assume Tcl_UniChar is an integral type...
	     */
................................................................................
	 */

	if (TclIsPureByteArray(objv[1])) {
	    unsigned char uch = (unsigned char) ch;

	    Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(&uch, 1));
	} else {
	    char buf[TCL_UTF_MAX] = "";

	    end = Tcl_UniCharToUtf(ch, buf);
	    if ((ch >= 0xD800) && (end < 3)) {
		end += Tcl_UniCharToUtf(-1, buf + end);
	    }
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, end));
	}
    }
    return TCL_OK;
}
 
................................................................................
	}
	break;
    }
    case STR_IS_DIGIT:
	chcomp = Tcl_UniCharIsDigit;
	break;
    case STR_IS_DOUBLE: {
	if (TclHasIntRep(objPtr, &tclDoubleType) ||
		TclHasIntRep(objPtr, &tclIntType) ||
		TclHasIntRep(objPtr, &tclBignumType)) {
	    break;
	}
	string1 = TclGetStringFromObj(objPtr, &length1);
	if (length1 == 0) {
	    if (strict) {
		result = 0;
	    }
................................................................................
	break;
    }
    case STR_IS_GRAPH:
	chcomp = Tcl_UniCharIsGraph;
	break;
    case STR_IS_INT:
    case STR_IS_ENTIER:
	if (TclHasIntRep(objPtr, &tclIntType) ||
		TclHasIntRep(objPtr, &tclBignumType)) {
	    break;
	}
	string1 = TclGetStringFromObj(objPtr, &length1);
	if (length1 == 0) {
	    if (strict) {
		result = 0;
	    }
................................................................................
	}
	end = string1 + length1;
	for (; string1 < end; string1 += length2, failat++) {
	    int fullchar;
	    length2 = TclUtfToUniChar(string1, &ch);
	    fullchar = ch;
#if TCL_UTF_MAX <= 4
	    if ((ch >= 0xD800) && (length2 < 3)) {
	    	length2 += TclUtfToUniChar(string1 + length2, &ch);
	    	fullchar = (((fullchar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
	    }
#endif
	    if (!chcomp(fullchar)) {
		result = 0;
		break;
	    }
................................................................................

    /*
     * This test is tricky, but has to be that way or you get other strange
     * inconsistencies (see test string-10.20.1 for illustration why!)
     */

    if (!TclHasStringRep(objv[objc-2])
	    && TclHasIntRep(objv[objc-2], &tclDictType)){
	int i, done;
	Tcl_DictSearch search;

	/*
	 * We know the type exactly, so all dict operations will succeed for
	 * sure. This shortens this code quite a bit.
	 */

	count++;
    }

    for (endTokenPtr = tokenPtr + parse.numTokens;
	    tokenPtr < endTokenPtr; tokenPtr = TokenAfter(tokenPtr)) {
	size_t length;
	int literal, catchRange, breakJump;
	char buf[TCL_UTF_MAX];
	JumpFixup startFixup, okFixup, returnFixup, breakFixup;
	JumpFixup continueFixup, otherFixup, endFixup;

	switch (tokenPtr->type) {
	case TCL_TOKEN_TEXT:
	    literal = TclRegisterLiteral(envPtr,
		    tokenPtr->start, tokenPtr->size, 0);

	count++;
    }

    for (endTokenPtr = tokenPtr + parse.numTokens;
	    tokenPtr < endTokenPtr; tokenPtr = TokenAfter(tokenPtr)) {
	size_t length;
	int literal, catchRange, breakJump;
	char buf[TCL_UTF_MAX] = "";
	JumpFixup startFixup, okFixup, returnFixup, breakFixup;
	JumpFixup continueFixup, otherFixup, endFixup;

	switch (tokenPtr->type) {
	case TCL_TOKEN_TEXT:
	    literal = TclRegisterLiteral(envPtr,
		    tokenPtr->start, tokenPtr->size, 0);

	    if (tempPtr != NULL) {
		Tcl_AppendToObj(tempPtr, tokenPtr->start, tokenPtr->size);
	    }
	    break;

	case TCL_TOKEN_BS:
	    if (tempPtr != NULL) {
		char utfBuf[TCL_UTF_MAX];
		size_t length = TclParseBackslash(tokenPtr->start,
			tokenPtr->size, NULL, utfBuf);

		Tcl_AppendToObj(tempPtr, utfBuf, length);
	    }
	    break;

................................................................................
				 * compile. */
    size_t count,		/* Number of tokens to consider at tokenPtr.
				 * Must be at least 1. */
    CompileEnv *envPtr)		/* Holds the resulting instructions. */
{
    Tcl_DString textBuffer;	/* Holds concatenated chars from adjacent
				 * TCL_TOKEN_TEXT, TCL_TOKEN_BS tokens. */
    char buffer[TCL_UTF_MAX];
    int numObjsToConcat, adjust;
    size_t i, length;
    unsigned char *entryCodeNext = envPtr->codeNext;
#define NUM_STATIC_POS 20
    int isLiteral, maxNumCL, numCL;
    int *clPosition = NULL;
    int depth = TclGetStackDepth(envPtr);

	    if (tempPtr != NULL) {
		Tcl_AppendToObj(tempPtr, tokenPtr->start, tokenPtr->size);
	    }
	    break;

	case TCL_TOKEN_BS:
	    if (tempPtr != NULL) {
		char utfBuf[TCL_UTF_MAX] = "";
		size_t length = TclParseBackslash(tokenPtr->start,
			tokenPtr->size, NULL, utfBuf);

		Tcl_AppendToObj(tempPtr, utfBuf, length);
	    }
	    break;

................................................................................
				 * compile. */
    size_t count,		/* Number of tokens to consider at tokenPtr.
				 * Must be at least 1. */
    CompileEnv *envPtr)		/* Holds the resulting instructions. */
{
    Tcl_DString textBuffer;	/* Holds concatenated chars from adjacent
				 * TCL_TOKEN_TEXT, TCL_TOKEN_BS tokens. */
    char buffer[TCL_UTF_MAX] = "";
    int numObjsToConcat, adjust;
    size_t i, length;
    unsigned char *entryCodeNext = envPtr->codeNext;
#define NUM_STATIC_POS 20
    int isLiteral, maxNumCL, numCL;
    int *clPosition = NULL;
    int depth = TclGetStackDepth(envPtr);

    /*
     * Since lists and dictionaries have very closely-related string
     * representations (i.e. the same parsing code) we can safely special-case
     * the conversion from lists to dictionaries.
     */

    if (objPtr->typePtr == &tclListType) {
	int objc, i;
	Tcl_Obj **objv;

	/* Cannot fail, we already know the Tcl_ObjType is "list". */
	TclListObjGetElements(NULL, objPtr, &objc, &objv);
	if (objc & 1) {
	    goto missingValue;

    /*
     * Since lists and dictionaries have very closely-related string
     * representations (i.e. the same parsing code) we can safely special-case
     * the conversion from lists to dictionaries.
     */

    if (TclHasIntRep(objPtr, &tclListType)) {
	int objc, i;
	Tcl_Obj **objv;

	/* Cannot fail, we already know the Tcl_ObjType is "list". */
	TclListObjGetElements(NULL, objPtr, &objc, &objv);
	if (objc & 1) {
	    goto missingValue;

	 */

	if (objc != 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "script");
	    return TCL_ERROR;
	}

	if ((objv[2]->typePtr != &tclByteCodeType) && (TCL_OK
		!= TclSetByteCodeFromAny(interp, objv[2], NULL, NULL))) {
	    return TCL_ERROR;
	}
	codeObjPtr = objv[2];
	break;

    case DISAS_CLASS_CONSTRUCTOR:
................................................................................
	    return TCL_ERROR;
	}

	/*
	 * Compile if necessary.
	 */

	if (procPtr->bodyPtr->typePtr != &tclByteCodeType) {
	    Command cmd;

	    /*
	     * Yes, this is ugly, but we need to pass the namespace in to the
	     * compiler in two places.
	     */

................................................................................
	    return TCL_ERROR;
	}

	/*
	 * Compile if necessary.
	 */

	if (procPtr->bodyPtr->typePtr != &tclByteCodeType) {
	    Command cmd;

	    /*
	     * Yes, this is ugly, but we need to pass the namespace in to the
	     * compiler in two places.
	     */

................................................................................
	if (procPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "body not available for this kind of method", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		    "METHODTYPE", NULL);
	    return TCL_ERROR;
	}
	if (procPtr->bodyPtr->typePtr != &tclByteCodeType) {
	    Command cmd;

	    /*
	     * Yes, this is ugly, but we need to pass the namespace in to the
	     * compiler in two places.
	     */

	 */

	if (objc != 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "script");
	    return TCL_ERROR;
	}

	if (!TclHasIntRep(objv[2], &tclByteCodeType) && (TCL_OK
		!= TclSetByteCodeFromAny(interp, objv[2], NULL, NULL))) {
	    return TCL_ERROR;
	}
	codeObjPtr = objv[2];
	break;

    case DISAS_CLASS_CONSTRUCTOR:
................................................................................
	    return TCL_ERROR;
	}

	/*
	 * Compile if necessary.
	 */

	if (!TclHasIntRep(procPtr->bodyPtr, &tclByteCodeType)) {
	    Command cmd;

	    /*
	     * Yes, this is ugly, but we need to pass the namespace in to the
	     * compiler in two places.
	     */

................................................................................
	    return TCL_ERROR;
	}

	/*
	 * Compile if necessary.
	 */

	if (!TclHasIntRep(procPtr->bodyPtr, &tclByteCodeType)) {
	    Command cmd;

	    /*
	     * Yes, this is ugly, but we need to pass the namespace in to the
	     * compiler in two places.
	     */

................................................................................
	if (procPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "body not available for this kind of method", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		    "METHODTYPE", NULL);
	    return TCL_ERROR;
	}
	if (!TclHasIntRep(procPtr->bodyPtr, &tclByteCodeType)) {
	    Command cmd;

	    /*
	     * Yes, this is ugly, but we need to pass the namespace in to the
	     * compiler in two places.
	     */

	    src += 1;
	    dst += Tcl_UniCharToUtf(*chPtr, dst);
	} else {
	    int len = TclUtfToUniChar(src, chPtr);
	    src += len;
	    dst += Tcl_UniCharToUtf(*chPtr, dst);
#if TCL_UTF_MAX <= 4
	    if (!len) {
		src += TclUtfToUniChar(src, chPtr);
		dst += Tcl_UniCharToUtf(*chPtr, dst);
	    }
#endif
	}
    }

    *srcReadPtr = src - srcStart;
................................................................................

	/*
	 * Check for illegal characters.
	 */

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

	    ch = (Tcl_UniChar) '?';
	}

	    src += 1;
	    dst += Tcl_UniCharToUtf(*chPtr, dst);
	} else {
	    int len = TclUtfToUniChar(src, chPtr);
	    src += len;
	    dst += Tcl_UniCharToUtf(*chPtr, dst);
#if TCL_UTF_MAX <= 4
	    if ((*chPtr >= 0xD800) && (len < 3)) {
		src += TclUtfToUniChar(src + len, chPtr);
		dst += Tcl_UniCharToUtf(*chPtr, dst);
	    }
#endif
	}
    }

    *srcReadPtr = src - srcStart;
................................................................................

	/*
	 * Check for illegal characters.
	 */

	if (ch > 0xff
#if TCL_UTF_MAX <= 4
		|| ((ch >= 0xD800) && (len < 3))
#endif
		) {
	    if (flags & TCL_ENCODING_STOPONERROR) {
		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) '?';
	}

	TRACE(("\"%.30s\" \"%.30s\" => ", O2S(valuePtr), O2S(value2Ptr)));

	/*
	 * Extract the desired list element.
	 */

	if ((TclListObjGetElements(interp, valuePtr, &objc, &objv) == TCL_OK)
		&& (value2Ptr->typePtr != &tclListType)
		&& (TclGetIntForIndexM(NULL, value2Ptr, objc-1,
			&index) == TCL_OK)) {
	    TclDecrRefCount(value2Ptr);
	    tosPtr--;
	    pcAdjustment = 1;
	    goto lindexFastPath;
	}
................................................................................
	} else if (TclIsPureByteArray(valuePtr)) {
	    objResultPtr = Tcl_NewByteArrayObj(
		    Tcl_GetByteArrayFromObj(valuePtr, NULL)+index, 1);
	} else if (valuePtr->bytes && slength == valuePtr->length) {
	    objResultPtr = Tcl_NewStringObj((const char *)
		    valuePtr->bytes+index, 1);
	} else {
	    char buf[4];
	    int ch = Tcl_GetUniChar(valuePtr, index);

	    /*
	     * This could be: Tcl_NewUnicodeObj((const Tcl_UniChar *)&ch, 1)
	     * but creating the object as a string seems to be faster in
	     * practical use.
	     */
	    if (ch == -1) {
		objResultPtr = Tcl_NewObj();
	    } else {
		slength = Tcl_UniCharToUtf(ch, buf);
		if (!slength) {
		    slength = Tcl_UniCharToUtf(-1, buf);
		}
		objResultPtr = Tcl_NewStringObj(buf, slength);
	    }
	}

	TRACE_APPEND(("\"%s\"\n", O2S(objResultPtr)));
	NEXT_INST_F(1, 2, 1);
................................................................................
	    TclNewObj(statePtr);
	    ir.twoPtrValue.ptr1 = searchPtr;
	    ir.twoPtrValue.ptr2 = dictPtr;
	    Tcl_StoreIntRep(statePtr, &dictIteratorType, &ir);
	}
	varPtr = LOCAL(opnd);
	if (varPtr->value.objPtr) {
	    if (varPtr->value.objPtr->typePtr == &dictIteratorType) {
		Tcl_Panic("mis-issued dictFirst!");
	    }
	    TclDecrRefCount(varPtr->value.objPtr);
	}
	varPtr->value.objPtr = statePtr;
	Tcl_IncrRefCount(statePtr);
	goto pushDictIteratorResult;
................................................................................
    objBytesIfUnshared = 0.0;
    strBytesIfUnshared = 0.0;
    strBytesSharedMultX = 0.0;
    strBytesSharedOnce = 0.0;
    for (i = 0;  i < globalTablePtr->numBuckets;  i++) {
	for (entryPtr = globalTablePtr->buckets[i];  entryPtr != NULL;
		entryPtr = entryPtr->nextPtr) {
	    if (entryPtr->objPtr->typePtr == &tclByteCodeType) {
		numByteCodeLits++;
	    }
	    (void) TclGetStringFromObj(entryPtr->objPtr, &length);
	    refCountSum += entryPtr->refCount;
	    objBytesIfUnshared += (entryPtr->refCount * sizeof(Tcl_Obj));
	    strBytesIfUnshared += (entryPtr->refCount * (length+1));
	    if (entryPtr->refCount > 1) {

	TRACE(("\"%.30s\" \"%.30s\" => ", O2S(valuePtr), O2S(value2Ptr)));

	/*
	 * Extract the desired list element.
	 */

	if ((TclListObjGetElements(interp, valuePtr, &objc, &objv) == TCL_OK)
		&& !TclHasIntRep(value2Ptr, &tclListType)
		&& (TclGetIntForIndexM(NULL, value2Ptr, objc-1,
			&index) == TCL_OK)) {
	    TclDecrRefCount(value2Ptr);
	    tosPtr--;
	    pcAdjustment = 1;
	    goto lindexFastPath;
	}
................................................................................
	} else if (TclIsPureByteArray(valuePtr)) {
	    objResultPtr = Tcl_NewByteArrayObj(
		    Tcl_GetByteArrayFromObj(valuePtr, NULL)+index, 1);
	} else if (valuePtr->bytes && slength == valuePtr->length) {
	    objResultPtr = Tcl_NewStringObj((const char *)
		    valuePtr->bytes+index, 1);
	} else {
	    char buf[TCL_UTF_MAX] = "";
	    int ch = Tcl_GetUniChar(valuePtr, index);

	    /*
	     * This could be: Tcl_NewUnicodeObj((const Tcl_UniChar *)&ch, 1)
	     * but creating the object as a string seems to be faster in
	     * practical use.
	     */
	    if (ch == -1) {
		objResultPtr = Tcl_NewObj();
	    } else {
		slength = Tcl_UniCharToUtf(ch, buf);
		if ((ch >= 0xD800) && (slength < 3)) {
		    slength += Tcl_UniCharToUtf(-1, buf + slength);
		}
		objResultPtr = Tcl_NewStringObj(buf, slength);
	    }
	}

	TRACE_APPEND(("\"%s\"\n", O2S(objResultPtr)));
	NEXT_INST_F(1, 2, 1);
................................................................................
	    TclNewObj(statePtr);
	    ir.twoPtrValue.ptr1 = searchPtr;
	    ir.twoPtrValue.ptr2 = dictPtr;
	    Tcl_StoreIntRep(statePtr, &dictIteratorType, &ir);
	}
	varPtr = LOCAL(opnd);
	if (varPtr->value.objPtr) {
	    if (TclHasIntRep(varPtr->value.objPtr, &dictIteratorType)) {
		Tcl_Panic("mis-issued dictFirst!");
	    }
	    TclDecrRefCount(varPtr->value.objPtr);
	}
	varPtr->value.objPtr = statePtr;
	Tcl_IncrRefCount(statePtr);
	goto pushDictIteratorResult;
................................................................................
    objBytesIfUnshared = 0.0;
    strBytesIfUnshared = 0.0;
    strBytesSharedMultX = 0.0;
    strBytesSharedOnce = 0.0;
    for (i = 0;  i < globalTablePtr->numBuckets;  i++) {
	for (entryPtr = globalTablePtr->buckets[i];  entryPtr != NULL;
		entryPtr = entryPtr->nextPtr) {
	    if (TclHasIntRep(entryPtr->objPtr, &tclByteCodeType)) {
		numByteCodeLits++;
	    }
	    (void) TclGetStringFromObj(entryPtr->objPtr, &length);
	    refCountSum += entryPtr->refCount;
	    objBytesIfUnshared += (entryPtr->refCount * sizeof(Tcl_Obj));
	    strBytesIfUnshared += (entryPtr->refCount * (length+1));
	    if (entryPtr->refCount > 1) {

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

unsigned
Tcl_GetFSDeviceFromStat(
    const Tcl_StatBuf *statPtr)
{
    return (unsigned) statPtr->st_dev;
}

unsigned
Tcl_GetFSInodeFromStat(
    const Tcl_StatBuf *statPtr)
{
    return (unsigned) statPtr->st_ino;
}

unsigned
Tcl_GetModeFromStat(
    const Tcl_StatBuf *statPtr)
{
    return (unsigned) statPtr->st_mode;
}

int
Tcl_GetLinkCountFromStat(
    const Tcl_StatBuf *statPtr)
{
    return (int)statPtr->st_nlink;
................................................................................
}

unsigned
Tcl_GetBlockSizeFromStat(
    const Tcl_StatBuf *statPtr)
{
#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
    return (unsigned) statPtr->st_blksize;
#else
    /*
     * Not a great guess, but will do...
     */

    return GUESSED_BLOCK_SIZE;
#endif

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

unsigned
Tcl_GetFSDeviceFromStat(
    const Tcl_StatBuf *statPtr)
{
    return statPtr->st_dev;
}

unsigned
Tcl_GetFSInodeFromStat(
    const Tcl_StatBuf *statPtr)
{
    return statPtr->st_ino;
}

unsigned
Tcl_GetModeFromStat(
    const Tcl_StatBuf *statPtr)
{
    return statPtr->st_mode;
}

int
Tcl_GetLinkCountFromStat(
    const Tcl_StatBuf *statPtr)
{
    return (int)statPtr->st_nlink;
................................................................................
}

unsigned
Tcl_GetBlockSizeFromStat(
    const Tcl_StatBuf *statPtr)
{
#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
    return statPtr->st_blksize;
#else
    /*
     * Not a great guess, but will do...
     */

    return GUESSED_BLOCK_SIZE;
#endif

 * MODULE_SCOPE int	TclIsPureByteArray(Tcl_Obj *objPtr);
 *----------------------------------------------------------------
 */

MODULE_SCOPE int	TclIsPureByteArray(Tcl_Obj *objPtr);
#define TclIsPureDict(objPtr) \
	(((objPtr)->bytes==NULL) && ((objPtr)->typePtr==&tclDictType))


#define TclFetchIntRep(objPtr, type) \
	(((objPtr)->typePtr == type) ? &((objPtr)->internalRep) : NULL)


/*
 *----------------------------------------------------------------
 * Macro used by the Tcl core to compare Unicode strings. On big-endian
 * systems we can use the more efficient memcmp, but this would not be
 * lexically correct on little-endian systems. The ANSI C "prototype" for

 * MODULE_SCOPE int	TclIsPureByteArray(Tcl_Obj *objPtr);
 *----------------------------------------------------------------
 */

MODULE_SCOPE int	TclIsPureByteArray(Tcl_Obj *objPtr);
#define TclIsPureDict(objPtr) \
	(((objPtr)->bytes==NULL) && ((objPtr)->typePtr==&tclDictType))
#define TclHasIntRep(objPtr, type) \
	((objPtr)->typePtr == (type)) 
#define TclFetchIntRep(objPtr, type) \
	(TclHasIntRep((objPtr), (type)) ? &((objPtr)->internalRep) : NULL)


/*
 *----------------------------------------------------------------
 * Macro used by the Tcl core to compare Unicode strings. On big-endian
 * systems we can use the more efficient memcmp, but this would not be
 * lexically correct on little-endian systems. The ANSI C "prototype" for

     * Dictionaries are a special case; they have a string representation such
     * that *all* valid dictionaries are valid lists. Hence we can convert
     * more directly. Only do this when there's no existing string rep; if
     * there is, it is the string rep that's authoritative (because it could
     * describe duplicate keys).
     */

    if (!TclHasStringRep(objPtr) && (objPtr->typePtr == &tclDictType)) {
	Tcl_Obj *keyPtr, *valuePtr;
	Tcl_DictSearch search;
	int done, size;

	/*
	 * Create the new list representation. Note that we do not need to do
	 * anything with the string representation as the transformation (and

     * Dictionaries are a special case; they have a string representation such
     * that *all* valid dictionaries are valid lists. Hence we can convert
     * more directly. Only do this when there's no existing string rep; if
     * there is, it is the string rep that's authoritative (because it could
     * describe duplicate keys).
     */

    if (!TclHasStringRep(objPtr) && TclHasIntRep(objPtr, &tclDictType)) {
	Tcl_Obj *keyPtr, *valuePtr;
	Tcl_DictSearch search;
	int done, size;

	/*
	 * Create the new list representation. Note that we do not need to do
	 * anything with the string representation as the transformation (and

				 * written. At most TCL_UTF_MAX bytes will be
				 * written there. */
{
    register const char *p = src+1;
    Tcl_UniChar unichar = 0;
    int result;
    size_t count;
    char buf[TCL_UTF_MAX];

    if (numBytes == 0) {
	if (readPtr != NULL) {
	    *readPtr = 0;
	}
	return 0;
    }
................................................................................
    }

  done:
    if (readPtr != NULL) {
	*readPtr = count;
    }
    count = Tcl_UniCharToUtf(result, dst);
    if (!count) {
	/* Special case for handling high surrogates. */
	count = Tcl_UniCharToUtf(-1, dst);
    }
    return count;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................

    adjust = 0;
    result = NULL;
    for (; count>0 && code==TCL_OK ; count--, tokenPtr++) {
	Tcl_Obj *appendObj = NULL;
	const char *append = NULL;
	int appendByteLength = 0;
	char utfCharBytes[TCL_UTF_MAX];

	switch (tokenPtr->type) {
	case TCL_TOKEN_TEXT:
	    append = tokenPtr->start;
	    appendByteLength = tokenPtr->size;
	    break;

				 * written. At most TCL_UTF_MAX bytes will be
				 * written there. */
{
    register const char *p = src+1;
    Tcl_UniChar unichar = 0;
    int result;
    size_t count;
    char buf[TCL_UTF_MAX] = "";

    if (numBytes == 0) {
	if (readPtr != NULL) {
	    *readPtr = 0;
	}
	return 0;
    }
................................................................................
    }

  done:
    if (readPtr != NULL) {
	*readPtr = count;
    }
    count = Tcl_UniCharToUtf(result, dst);
    if ((result >= 0xD800) && (count < 3)) {
	/* Special case for handling high surrogates. */
	count += Tcl_UniCharToUtf(-1, dst + count);
    }
    return count;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................

    adjust = 0;
    result = NULL;
    for (; count>0 && code==TCL_OK ; count--, tokenPtr++) {
	Tcl_Obj *appendObj = NULL;
	const char *append = NULL;
	int appendByteLength = 0;
	char utfCharBytes[TCL_UTF_MAX] = "";

	switch (tokenPtr->type) {
	case TCL_TOKEN_TEXT:
	    append = tokenPtr->start;
	    appendByteLength = tokenPtr->size;
	    break;

Tcl_Obj *
TclPathPart(
    Tcl_Interp *interp,		/* Used for error reporting */
    Tcl_Obj *pathPtr,		/* Path to take dirname of */
    Tcl_PathPart portion)	/* Requested portion of name */
{
    Tcl_ObjIntRep *irPtr = TclFetchIntRep(pathPtr, &fsPathType);

    if (irPtr) {
	FsPath *fsPathPtr = PATHOBJ(pathPtr);

	if (PATHFLAGS(pathPtr) != 0) {
	    switch (portion) {
	    case TCL_PATH_DIRNAME: {
		/*
		 * Check if the joined-on bit has any directory delimiters in
................................................................................
int
Tcl_FSConvertToPathType(
    Tcl_Interp *interp,		/* Interpreter in which to store error message
				 * (if necessary). */
    Tcl_Obj *pathPtr)		/* Object to convert to a valid, current path
				 * type. */
{
    Tcl_ObjIntRep *irPtr = TclFetchIntRep(pathPtr, &fsPathType);

    /*
     * While it is bad practice to examine an object's type directly, this is
     * actually the best thing to do here. The reason is that if we are
     * converting this object to FsPath type for the first time, we don't need
     * to worry whether the 'cwd' has changed. On the other hand, if this
     * object is already of FsPath type, and is a relative path, we do have to
     * worry about the cwd. If the cwd has changed, we must recompute the
     * path.
     */

    if (irPtr) {
	if (TclFSEpochOk(PATHOBJ(pathPtr)->filesystemEpoch)) {
	    return TCL_OK;
	}

	TclGetString(pathPtr);
	Tcl_StoreIntRep(pathPtr, &fsPathType, NULL);
    }
................................................................................

static int
MakePathFromNormalized(
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    Tcl_Obj *pathPtr)		/* The object to convert. */
{
    FsPath *fsPathPtr;
    Tcl_ObjIntRep *irPtr = TclFetchIntRep(pathPtr, &fsPathType);

    if (irPtr) {

	return TCL_OK;
    }

    fsPathPtr = Tcl_Alloc(sizeof(FsPath));

    /*
     * It's a pure normalized absolute path.
................................................................................

int
TclFSEnsureEpochOk(
    Tcl_Obj *pathPtr,
    const Tcl_Filesystem **fsPtrPtr)
{
    FsPath *srcFsPathPtr;
    Tcl_ObjIntRep *irPtr = TclFetchIntRep(pathPtr, &fsPathType);

    if (irPtr == NULL) {

	return TCL_OK;
    }

    srcFsPathPtr = PATHOBJ(pathPtr);

    /*
     * Check if the filesystem has changed in some way since this object's
................................................................................
void
TclFSSetPathDetails(
    Tcl_Obj *pathPtr,
    const Tcl_Filesystem *fsPtr,
    ClientData clientData)
{
    FsPath *srcFsPathPtr;
    Tcl_ObjIntRep *irPtr = TclFetchIntRep(pathPtr, &fsPathType);;

    /*
     * Make sure pathPtr is of the correct type.
     */

    if (irPtr == NULL) {
	if (SetFsPathFromAny(NULL, pathPtr) != TCL_OK) {
	    return;
	}
    }

    srcFsPathPtr = PATHOBJ(pathPtr);
    srcFsPathPtr->fsPtr = fsPtr;
................................................................................
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    Tcl_Obj *pathPtr)		/* The object to convert. */
{
    size_t len;
    FsPath *fsPathPtr;
    Tcl_Obj *transPtr;
    char *name;
    Tcl_ObjIntRep *irPtr = TclFetchIntRep(pathPtr, &fsPathType);

    if (irPtr) {

	return TCL_OK;
    }

    /*
     * First step is to translate the filename. This is similar to
     * Tcl_TranslateFilename, but shouldn't convert everything to windows
     * backslashes on that platform. The current implementation of this piece
................................................................................
 */

int
TclNativePathInFilesystem(
    Tcl_Obj *pathPtr,
    ClientData *clientDataPtr)
{
    Tcl_ObjIntRep *irPtr = TclFetchIntRep(pathPtr, &fsPathType);

    /*
     * A special case is required to handle the empty path "". This is a valid
     * path (i.e. the user should be able to do 'file exists ""' without
     * throwing an error), but equally the path doesn't exist. Those are the
     * semantics of Tcl (at present anyway), so we have to abide by them here.
     */

    if (irPtr) {
	if (pathPtr->bytes != NULL && pathPtr->bytes[0] == '\0') {
	    /*
	     * We reject the empty path "".
	     */

	    return -1;
	}

Tcl_Obj *
TclPathPart(
    Tcl_Interp *interp,		/* Used for error reporting */
    Tcl_Obj *pathPtr,		/* Path to take dirname of */
    Tcl_PathPart portion)	/* Requested portion of name */
{
    if (TclHasIntRep(pathPtr, &fsPathType)) {


	FsPath *fsPathPtr = PATHOBJ(pathPtr);

	if (PATHFLAGS(pathPtr) != 0) {
	    switch (portion) {
	    case TCL_PATH_DIRNAME: {
		/*
		 * Check if the joined-on bit has any directory delimiters in
................................................................................
int
Tcl_FSConvertToPathType(
    Tcl_Interp *interp,		/* Interpreter in which to store error message
				 * (if necessary). */
    Tcl_Obj *pathPtr)		/* Object to convert to a valid, current path
				 * type. */
{


    /*
     * While it is bad practice to examine an object's type directly, this is
     * actually the best thing to do here. The reason is that if we are
     * converting this object to FsPath type for the first time, we don't need
     * to worry whether the 'cwd' has changed. On the other hand, if this
     * object is already of FsPath type, and is a relative path, we do have to
     * worry about the cwd. If the cwd has changed, we must recompute the
     * path.
     */

    if (TclHasIntRep(pathPtr, &fsPathType)) {
	if (TclFSEpochOk(PATHOBJ(pathPtr)->filesystemEpoch)) {
	    return TCL_OK;
	}

	TclGetString(pathPtr);
	Tcl_StoreIntRep(pathPtr, &fsPathType, NULL);
    }
................................................................................

static int
MakePathFromNormalized(
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    Tcl_Obj *pathPtr)		/* The object to convert. */
{
    FsPath *fsPathPtr;



    if (TclHasIntRep(pathPtr, &fsPathType)) {
	return TCL_OK;
    }

    fsPathPtr = Tcl_Alloc(sizeof(FsPath));

    /*
     * It's a pure normalized absolute path.
................................................................................

int
TclFSEnsureEpochOk(
    Tcl_Obj *pathPtr,
    const Tcl_Filesystem **fsPtrPtr)
{
    FsPath *srcFsPathPtr;



    if (!TclHasIntRep(pathPtr, &fsPathType)) {
	return TCL_OK;
    }

    srcFsPathPtr = PATHOBJ(pathPtr);

    /*
     * Check if the filesystem has changed in some way since this object's
................................................................................
void
TclFSSetPathDetails(
    Tcl_Obj *pathPtr,
    const Tcl_Filesystem *fsPtr,
    ClientData clientData)
{
    FsPath *srcFsPathPtr;


    /*
     * Make sure pathPtr is of the correct type.
     */

    if (!TclHasIntRep(pathPtr, &fsPathType)) {
	if (SetFsPathFromAny(NULL, pathPtr) != TCL_OK) {
	    return;
	}
    }

    srcFsPathPtr = PATHOBJ(pathPtr);
    srcFsPathPtr->fsPtr = fsPtr;
................................................................................
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    Tcl_Obj *pathPtr)		/* The object to convert. */
{
    size_t len;
    FsPath *fsPathPtr;
    Tcl_Obj *transPtr;
    char *name;



    if (TclHasIntRep(pathPtr, &fsPathType)) {
	return TCL_OK;
    }

    /*
     * First step is to translate the filename. This is similar to
     * Tcl_TranslateFilename, but shouldn't convert everything to windows
     * backslashes on that platform. The current implementation of this piece
................................................................................
 */

int
TclNativePathInFilesystem(
    Tcl_Obj *pathPtr,
    ClientData *clientDataPtr)
{


    /*
     * A special case is required to handle the empty path "". This is a valid
     * path (i.e. the user should be able to do 'file exists ""' without
     * throwing an error), but equally the path doesn't exist. Those are the
     * semantics of Tcl (at present anyway), so we have to abide by them here.
     */

    if (TclHasIntRep(pathPtr, &fsPathType)) {
	if (pathPtr->bytes != NULL && pathPtr->bytes[0] == '\0') {
	    /*
	     * We reject the empty path "".
	     */

	    return -1;
	}

				 * required. */
{
    int gotXpg, gotSequential, value, i, flags;
    char *end;
    Tcl_UniChar ch = 0;
    int objIndex, xpgSize, nspace = numVars;
    int *nassign = TclStackAlloc(interp, nspace * sizeof(int));
    char buf[TCL_UTF_MAX+1];
    Tcl_Obj *errorMsg;		/* Place to build an error messages. Note that
				 * these are messy operations because we do
				 * not want to use the formatting engine;
				 * we're inside there! */

    /*
     * Initialize an array that records the number of times a variable is
................................................................................
	    /*
	     * Scan a single Unicode character.
	     */

	    offset = TclUtfToUniChar(string, &sch);
	    i = (int)sch;
#if TCL_UTF_MAX == 4
	    if (!offset) {
		offset = TclUtfToUniChar(string, &sch);
		i = (((i<<10) & 0x0FFC00) + 0x10000) + (sch & 0x3FF);
	    }
#endif
	    string += offset;
	    if (!(flags & SCAN_SUPPRESS)) {
		objPtr = Tcl_NewWideIntObj(i);
		Tcl_IncrRefCount(objPtr);

				 * required. */
{
    int gotXpg, gotSequential, value, i, flags;
    char *end;
    Tcl_UniChar ch = 0;
    int objIndex, xpgSize, nspace = numVars;
    int *nassign = TclStackAlloc(interp, nspace * sizeof(int));
    char buf[TCL_UTF_MAX+1] = "";
    Tcl_Obj *errorMsg;		/* Place to build an error messages. Note that
				 * these are messy operations because we do
				 * not want to use the formatting engine;
				 * we're inside there! */

    /*
     * Initialize an array that records the number of times a variable is
................................................................................
	    /*
	     * Scan a single Unicode character.
	     */

	    offset = TclUtfToUniChar(string, &sch);
	    i = (int)sch;
#if TCL_UTF_MAX == 4
	    if (((sch & 0xFC00) == 0xD800) && (offset < 3)) {
		offset += TclUtfToUniChar(string+offset, &sch);
		i = (((i<<10) & 0x0FFC00) + 0x10000) + (sch & 0x3FF);
	    }
#endif
	    string += offset;
	    if (!(flags & SCAN_SUPPRESS)) {
		objPtr = Tcl_NewWideIntObj(i);
		Tcl_IncrRefCount(objPtr);

	    char buf[4];
	    int code, length;

	    if (TclGetIntFromObj(interp, segment, &code) != TCL_OK) {
		goto error;
	    }
	    length = Tcl_UniCharToUtf(code, buf);
	    if (!length) {
		/* Special case for handling high surrogates. */
		length = Tcl_UniCharToUtf(-1, buf);
	    }
	    segment = Tcl_NewStringObj(buf, length);
	    Tcl_IncrRefCount(segment);
	    allocSegment = 1;
	    break;
	}

	    char buf[4];
	    int code, length;

	    if (TclGetIntFromObj(interp, segment, &code) != TCL_OK) {
		goto error;
	    }
	    length = Tcl_UniCharToUtf(code, buf);
	    if ((code >= 0xD800) && (length < 3)) {
		/* Special case for handling high surrogates. */
		length += Tcl_UniCharToUtf(-1, buf + length);
	    }
	    segment = Tcl_NewStringObj(buf, length);
	    Tcl_IncrRefCount(segment);
	    allocSegment = 1;
	    break;
	}

	    buf[0] = (char) ((ch >> 6) | 0xC0);
	    return 2;
	}
	if (ch <= 0xFFFF) {
	    if ((ch & 0xF800) == 0xD800) {
		if (ch & 0x0400) {
		    /* Low surrogate */
		    if (((buf[0] & 0xF8) == 0xF0) && ((buf[1] & 0xC0) == 0x80)
			    && ((buf[2] & 0xCF) == 0)) {
			/* Previous Tcl_UniChar was a High surrogate, so combine */
			buf[3] = (char) ((ch & 0x3F) | 0x80);
			buf[2] |= (char) (((ch >> 6) & 0x0F) | 0x80);
			return 4;
		    }
		    /* Previous Tcl_UniChar was not a High surrogate, so just output */
		} else {
		    /* High surrogate */
		    ch += 0x40;
		    /* Fill buffer with specific 3-byte (invalid) byte combination,
		       so following Low surrogate can recognize it and combine */
		    buf[2] = (char) ((ch << 4) & 0x30);
		    buf[1] = (char) (((ch >> 2) & 0x3F) | 0x80);
		    buf[0] = (char) (((ch >> 8) & 0x07) | 0xF0);
		    return 0;
		}
	    }
	    goto three;
	}
	if (ch <= 0x10FFFF) {
	    buf[3] = (char) ((ch | 0x80) & 0xBF);
	    buf[2] = (char) (((ch >> 6) | 0x80) & 0xBF);
	    buf[1] = (char) (((ch >> 12) | 0x80) & 0xBF);
	    buf[0] = (char) ((ch >> 18) | 0xF0);
	    return 4;
	}
    } else if (ch == -1) {
	if (((buf[0] & 0xF8) == 0xF0) && ((buf[1] & 0xC0) == 0x80)
		&& ((buf[2] & 0xCF) == 0)) {
	    ch = 0xD7C0 + ((buf[0] & 0x07) << 8) + ((buf[1] & 0x3F) << 2)
		    + ((buf[2] & 0x30) >> 4);
	    goto three;



	}
    }

    ch = 0xFFFD;
three:
    buf[2] = (char) ((ch | 0x80) & 0xBF);
    buf[1] = (char) (((ch >> 6) | 0x80) & 0xBF);
................................................................................
    for (w = uniStr; w < wEnd; ) {
	if (!len && ((*w & 0xFC00) != 0xDC00)) {
	    /* Special case for handling high surrogates. */
	    p += Tcl_UniCharToUtf(-1, p);
	}
	len = Tcl_UniCharToUtf(*w, p);
	p += len;



	w++;
    }
    if (!len) {
	/* Special case for handling high surrogates. */
	p += Tcl_UniCharToUtf(-1, p);
    }
    Tcl_DStringSetLength(dsPtr, oldLength + (p - string));
................................................................................

int
Tcl_UtfToUniChar(
    register const char *src,	/* The UTF-8 string. */
    register Tcl_UniChar *chPtr)/* Filled with the Tcl_UniChar represented by
				 * the UTF-8 string. */
{
    register int byte;

    /*
     * Unroll 1 to 3 (or 4) byte UTF-8 sequences.
     */

    byte = *((unsigned char *) src);
    if (byte < 0xC0) {
	/*
	 * Handles properly formed UTF-8 characters between 0x01 and 0x7F.
	 * Treats naked trail bytes 0x80 to 0x9F as valid characters from
	 * the cp1252 table. See: <https://en.wikipedia.org/wiki/UTF-8>
	 * Also treats \0 and other naked trail bytes 0xA0 to 0xBF as valid
	 * characters representing themselves.
	 */

	if ((unsigned)(byte-0x80) < (unsigned) 0x20) {














	    *chPtr = (Tcl_UniChar) cp1252[byte-0x80];
	} else {
	    *chPtr = (Tcl_UniChar) byte;
	}
	return 1;
    } else if (byte < 0xE0) {
	if ((src[1] & 0xC0) == 0x80) {
	    /*
	     * Two-byte-character lead-byte followed by a trail-byte.
	     */

	    *chPtr = (Tcl_UniChar) (((byte & 0x1F) << 6) | (src[1] & 0x3F));
	    if ((unsigned)(*chPtr - 1) >= (UNICODE_SELF - 1)) {
		return 2;
	    }
	}

	/*
	 * A two-byte-character lead-byte not followed by trail-byte
................................................................................
	 */
    } else if (byte < 0xF0) {
	if (((src[1] & 0xC0) == 0x80) && ((src[2] & 0xC0) == 0x80)) {
	    /*
	     * Three-byte-character lead byte followed by two trail bytes.
	     */

	    *chPtr = (Tcl_UniChar) (((byte & 0x0F) << 12)
		    | ((src[1] & 0x3F) << 6) | (src[2] & 0x3F));
	    if (*chPtr > 0x7FF) {
		return 3;
	    }
	}

	/*
................................................................................
    }
    else if (byte < 0xF8) {
	if (((src[1] & 0xC0) == 0x80) && ((src[2] & 0xC0) == 0x80) && ((src[3] & 0xC0) == 0x80)) {
	    /*
	     * Four-byte-character lead byte followed by three trail bytes.
	     */
#if TCL_UTF_MAX <= 4
	    Tcl_UniChar surrogate;

	    byte = (((byte & 0x07) << 18) | ((src[1] & 0x3F) << 12)
		    | ((src[2] & 0x3F) << 6) | (src[3] & 0x3F)) - 0x10000;
	    surrogate = (Tcl_UniChar) (0xD800 + (byte >> 10));
	    if (byte & 0x100000) {

		/* out of range, < 0x10000 or > 0x10ffff */
	    } else if (*chPtr != surrogate) {
		/* produce high surrogate, but don't advance source pointer */
		*chPtr = surrogate;
		return 0;
	    } else {
		/* produce low surrogate, and advance source pointer */
		*chPtr = (Tcl_UniChar) (0xDC00 | (byte & 0x3FF));

		return 4;
	    }
#else
	    *chPtr = (Tcl_UniChar) (((byte & 0x07) << 18) | ((src[1] & 0x3F) << 12)
		    | ((src[2] & 0x3F) << 6) | (src[3] & 0x3F));
	    if ((unsigned)(*chPtr - 0x10000) <= 0xFFFFF) {
		return 4;
	    }
#endif
	}

	/*
	 * A four-byte-character lead-byte not followed by two trail-bytes
	 * represents itself.
	 */
    }

    *chPtr = (Tcl_UniChar) byte;
    return 1;
}
 
/*
 *---------------------------------------------------------------------------
 *
 * Tcl_UtfToUniCharDString --
................................................................................
	p += TclUtfToUniChar(p, &ch);
	*w++ = ch;
    }
    end += 4;
    while (p < end) {
	if (Tcl_UtfCharComplete(p, end-p)) {
	    p += TclUtfToUniChar(p, &ch);
	} else if ((unsigned)((UCHAR(*p)-0x80)) < (unsigned) 0x20) {
	    ch = (Tcl_UniChar) cp1252[UCHAR(*p++)-0x80];
	} else {
	    ch = UCHAR(*p++);
	}
	*w++ = ch;
    }
    *w = '\0';
    Tcl_DStringSetLength(dsPtr,
................................................................................
    int fullchar;
    Tcl_UniChar find = 0;

    while (1) {
	len = TclUtfToUniChar(src, &find);
	fullchar = find;
#if TCL_UTF_MAX <= 4
	if (!len) {
	    len += TclUtfToUniChar(src, &find);
	    fullchar = (((fullchar & 0x3ff) << 10) | (find & 0x3ff)) + 0x10000;
	}
#endif
	if (fullchar == ch) {
	    return src;
	}
	if (*src == '\0') {
................................................................................
    const char *last;

    last = NULL;
    while (1) {
	len = TclUtfToUniChar(src, &find);
	fullchar = find;
#if TCL_UTF_MAX <= 4
	if (!len) {
	    len += TclUtfToUniChar(src, &find);
	    fullchar = (((fullchar & 0x3ff) << 10) | (find & 0x3ff)) + 0x10000;
	}
#endif
	if (fullchar == ch) {
	    last = src;
	}
	if (*src == '\0') {
................................................................................
Tcl_UtfNext(
    const char *src)		/* The current location in the string. */
{
    Tcl_UniChar ch = 0;
    size_t len = TclUtfToUniChar(src, &ch);

#if TCL_UTF_MAX <= 4
    if (len == 0) {
      len = TclUtfToUniChar(src, &ch);
    }
#endif
    return src + len;
}
 
/*
 *---------------------------------------------------------------------------
................................................................................
Tcl_UniCharAtIndex(
    register const char *src,	/* The UTF-8 string to dereference. */
    register size_t index)		/* The position of the desired character. */
{
    Tcl_UniChar ch = 0;
    int fullchar = 0;
#if TCL_UTF_MAX <= 4
	size_t len = 1;
#endif

    src += TclUtfToUniChar(src, &ch);
    while (index--) {
#if TCL_UTF_MAX <= 4
	src += (len = TclUtfToUniChar(src, &ch));
#else
	src += TclUtfToUniChar(src, &ch);
#endif
    }
    fullchar = ch;
#if TCL_UTF_MAX <= 4
     if (!len) {
	/* If last Tcl_UniChar was a high surrogate, combine with low surrogate */
	(void)TclUtfToUniChar(src, &ch);
	fullchar = (((fullchar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
    }
#endif
    return fullchar;
}
................................................................................
const char *
Tcl_UtfAtIndex(
    register const char *src,	/* The UTF-8 string. */
    register size_t index)		/* The position of the desired character. */
{
    Tcl_UniChar ch = 0;
#if TCL_UTF_MAX <= 4
    size_t 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
	}
#if TCL_UTF_MAX <= 4
	if (!len) {
	    /* Index points at character following High Surrogate */
	    src += TclUtfToUniChar(src, &ch);
	}
#endif
    }
    return src;
}
 
/*
 *---------------------------------------------------------------------------
................................................................................
int
Tcl_UtfToUpper(
    char *str)			/* String to convert in place. */
{
    Tcl_UniChar ch = 0;
    int upChar;
    char *src, *dst;
    size_t bytes;

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

    src = dst = str;
    while (*src) {
	bytes = TclUtfToUniChar(src, &ch);
	upChar = ch;
#if TCL_UTF_MAX <= 4
	if (!bytes) {
	    /* TclUtfToUniChar only returns 0 for chars > 0xffff ! */
	    bytes = TclUtfToUniChar(src, &ch);
	    /* Combine surrogates */
	    upChar = (((upChar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
	}
#endif
	upChar = Tcl_UniCharToUpper(upChar);

	/*
	 * 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.
	 */

	if ((bytes < TclUtfCount(upChar)) || ((upChar & 0xF800) == 0xD800)) {
	    memcpy(dst, src, bytes);
	    dst += bytes;
	} else {
	    dst += Tcl_UniCharToUtf(upChar, dst);
	}
	src += bytes;
    }
    *dst = '\0';
    return (dst - str);
}
 
/*
 *----------------------------------------------------------------------
................................................................................
int
Tcl_UtfToLower(
    char *str)			/* String to convert in place. */
{
    Tcl_UniChar ch = 0;
    int lowChar;
    char *src, *dst;
    size_t bytes;

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

    src = dst = str;
    while (*src) {
	bytes = TclUtfToUniChar(src, &ch);
	lowChar = ch;
#if TCL_UTF_MAX <= 4
	if (!bytes) {
	    /* TclUtfToUniChar only returns 0 for chars > 0xffff ! */
	    bytes = TclUtfToUniChar(src, &ch);
	    /* Combine surrogates */
	    lowChar = (((lowChar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
	}
#endif
	lowChar = Tcl_UniCharToLower(lowChar);

	/*
	 * 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.
	 */

	if ((bytes < TclUtfCount(lowChar)) || ((lowChar & 0xF800) == 0xD800)) {
	    memcpy(dst, src, bytes);
	    dst += bytes;
	} else {
	    dst += Tcl_UniCharToUtf(lowChar, dst);
	}
	src += bytes;
    }
    *dst = '\0';
    return (dst - str);
}
 
/*
 *----------------------------------------------------------------------
................................................................................
int
Tcl_UtfToTitle(
    char *str)			/* String to convert in place. */
{
    Tcl_UniChar ch = 0;
    int titleChar, lowChar;
    char *src, *dst;
    size_t bytes;

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

    src = dst = str;

    if (*src) {
	bytes = TclUtfToUniChar(src, &ch);
	titleChar = ch;
#if TCL_UTF_MAX <= 4
	if (!bytes) {
	    /* TclUtfToUniChar only returns 0 for chars > 0xffff ! */
	    bytes = TclUtfToUniChar(src, &ch);
	    /* Combine surrogates */
	    titleChar = (((titleChar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
	}
#endif
	titleChar = Tcl_UniCharToTitle(titleChar);

	if ((bytes < TclUtfCount(titleChar)) || ((titleChar & 0xF800) == 0xD800)) {
	    memcpy(dst, src, bytes);
	    dst += bytes;
	} else {
	    dst += Tcl_UniCharToUtf(titleChar, dst);
	}
	src += bytes;
    }
    while (*src) {
	bytes = TclUtfToUniChar(src, &ch);
	lowChar = ch;
#if TCL_UTF_MAX <= 4
	if (!bytes) {
	    /* TclUtfToUniChar only returns 0 for chars > 0xffff ! */
	    bytes = TclUtfToUniChar(src, &ch);
	    /* Combine surrogates */
	    lowChar = (((lowChar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
	}
#endif
	/* Special exception for Georgian Asomtavruli chars, no titlecase. */
	if ((unsigned)(lowChar - 0x1C90) >= 0x30) {
	    lowChar = Tcl_UniCharToLower(lowChar);
	}

	if ((bytes < TclUtfCount(lowChar)) || ((lowChar & 0xF800) == 0xD800)) {
	    memcpy(dst, src, bytes);
	    dst += bytes;
	} else {
	    dst += Tcl_UniCharToUtf(lowChar, dst);
	}
	src += bytes;
    }
    *dst = '\0';
    return (dst - str);
}
 
/*
 *----------------------------------------------------------------------

	    buf[0] = (char) ((ch >> 6) | 0xC0);
	    return 2;
	}
	if (ch <= 0xFFFF) {
	    if ((ch & 0xF800) == 0xD800) {
		if (ch & 0x0400) {
		    /* Low surrogate */
		    if (((buf[0] & 0xC0) == 0x80) && ((buf[1] & 0xCF) == 0)) {

			/* Previous Tcl_UniChar was a high surrogate, so combine */
			buf[2] = (char) ((ch & 0x3F) | 0x80);
			buf[1] |= (char) (((ch >> 6) & 0x0F) | 0x80);
			return 3;
		    }
		    /* Previous Tcl_UniChar was not a high surrogate, so just output */
		} else {
		    /* High surrogate */
		    ch += 0x40;
		    /* Fill buffer with specific 3-byte (invalid) byte combination,
		       so following low surrogate can recognize it and combine */
		    buf[2] = (char) ((ch << 4) & 0x30);
		    buf[1] = (char) (((ch >> 2) & 0x3F) | 0x80);
		    buf[0] = (char) (((ch >> 8) & 0x07) | 0xF0);
		    return 1;
		}
	    }
	    goto three;
	}
	if (ch <= 0x10FFFF) {
	    buf[3] = (char) ((ch | 0x80) & 0xBF);
	    buf[2] = (char) (((ch >> 6) | 0x80) & 0xBF);
	    buf[1] = (char) (((ch >> 12) | 0x80) & 0xBF);
	    buf[0] = (char) ((ch >> 18) | 0xF0);
	    return 4;
	}
    } else if (ch == -1) {
	if (((buf[0] & 0xC0) == 0x80) && ((buf[1] & 0xCF) == 0)
		&& ((buf[-1] & 0xF8) == 0xF0)) {
	    ch = 0xD7C0 + ((buf[-1] & 0x07) << 8) + ((buf[0] & 0x3F) << 2)
		    + ((buf[1] & 0x30) >> 4);
	    buf[1] = (char) ((ch | 0x80) & 0xBF);
	    buf[0] = (char) (((ch >> 6) | 0x80) & 0xBF);
	    buf[-1] = (char) ((ch >> 12) | 0xE0);
	    return 2;
	}
    }

    ch = 0xFFFD;
three:
    buf[2] = (char) ((ch | 0x80) & 0xBF);
    buf[1] = (char) (((ch >> 6) | 0x80) & 0xBF);
................................................................................
    for (w = uniStr; w < wEnd; ) {
	if (!len && ((*w & 0xFC00) != 0xDC00)) {
	    /* Special case for handling high surrogates. */
	    p += Tcl_UniCharToUtf(-1, p);
	}
	len = Tcl_UniCharToUtf(*w, p);
	p += len;
	if ((*w >= 0xD800) && (len < 3)) {
	    len = 0; /* Indication that high surrogate was found */
	}
	w++;
    }
    if (!len) {
	/* Special case for handling high surrogates. */
	p += Tcl_UniCharToUtf(-1, p);
    }
    Tcl_DStringSetLength(dsPtr, oldLength + (p - string));
................................................................................

int
Tcl_UtfToUniChar(
    register const char *src,	/* The UTF-8 string. */
    register Tcl_UniChar *chPtr)/* Filled with the Tcl_UniChar represented by
				 * the UTF-8 string. */
{
    Tcl_UniChar byte;

    /*
     * Unroll 1 to 4 byte UTF-8 sequences.
     */

    byte = *((unsigned char *) src);
    if (byte < 0xC0) {
	/*
	 * Handles properly formed UTF-8 characters between 0x01 and 0x7F.
	 * Treats naked trail bytes 0x80 to 0x9F as valid characters from
	 * the cp1252 table. See: <https://en.wikipedia.org/wiki/UTF-8>
	 * Also treats \0 and other naked trail bytes 0xA0 to 0xBF as valid
	 * characters representing themselves.
	 */

#if TCL_UTF_MAX <= 4
	/* If *chPtr contains a high surrogate (produced by a previous
	 * Tcl_UtfToUniChar() call) and the next 3 bytes are UTF-8 continuation
	 * bytes, then we must produce a follow-up low surrogate. We only
	 * do that if the high surrogate matches the bits we encounter.
	 */
	if ((byte >= 0x80)
		&& (((((byte - 0x10) << 2) & 0xFC) | 0xD800) == (*chPtr & 0xFCFC))
		&& ((src[1] & 0xF0) == (((*chPtr << 4) & 0x30) | 0x80))
		&& ((src[2] & 0xC0) == 0x80)) {
	    *chPtr = ((src[1] & 0x0F) << 6) + (src[2] & 0x3F) + 0xDC00;
	    return 3;
	}
#endif
	if (byte-0x80 < 0x20) {
	    *chPtr = cp1252[byte-0x80];
	} else {
	    *chPtr = byte;
	}
	return 1;
    } else if (byte < 0xE0) {
	if ((src[1] & 0xC0) == 0x80) {
	    /*
	     * Two-byte-character lead-byte followed by a trail-byte.
	     */

	    *chPtr = (((byte & 0x1F) << 6) | (src[1] & 0x3F));
	    if ((unsigned)(*chPtr - 1) >= (UNICODE_SELF - 1)) {
		return 2;
	    }
	}

	/*
	 * A two-byte-character lead-byte not followed by trail-byte
................................................................................
	 */
    } else if (byte < 0xF0) {
	if (((src[1] & 0xC0) == 0x80) && ((src[2] & 0xC0) == 0x80)) {
	    /*
	     * Three-byte-character lead byte followed by two trail bytes.
	     */

	    *chPtr = (((byte & 0x0F) << 12)
		    | ((src[1] & 0x3F) << 6) | (src[2] & 0x3F));
	    if (*chPtr > 0x7FF) {
		return 3;
	    }
	}

	/*
................................................................................
    }
    else if (byte < 0xF8) {
	if (((src[1] & 0xC0) == 0x80) && ((src[2] & 0xC0) == 0x80) && ((src[3] & 0xC0) == 0x80)) {
	    /*
	     * Four-byte-character lead byte followed by three trail bytes.
	     */
#if TCL_UTF_MAX <= 4


	    Tcl_UniChar high = (((byte & 0x07) << 8) | ((src[1] & 0x3F) << 2)
		    | ((src[2] & 0x3F) >> 4)) - 0x40;


	    if (high >= 0x400) {
		/* out of range, < 0x10000 or > 0x10ffff */




	    } else {
		/* produce high surrogate, advance source pointer */

		*chPtr = 0xD800 + high;
		return 1;
	    }
#else
	    *chPtr = (((byte & 0x07) << 18) | ((src[1] & 0x3F) << 12)
		    | ((src[2] & 0x3F) << 6) | (src[3] & 0x3F));
	    if ((*chPtr - 0x10000) <= 0xFFFFF) {
		return 4;
	    }
#endif
	}

	/*
	 * A four-byte-character lead-byte not followed by two trail-bytes
	 * represents itself.
	 */
    }

    *chPtr = byte;
    return 1;
}
 
/*
 *---------------------------------------------------------------------------
 *
 * Tcl_UtfToUniCharDString --
................................................................................
	p += TclUtfToUniChar(p, &ch);
	*w++ = ch;
    }
    end += 4;
    while (p < end) {
	if (Tcl_UtfCharComplete(p, end-p)) {
	    p += TclUtfToUniChar(p, &ch);
	} else if (((UCHAR(*p)-0x80)) < 0x20) {
	    ch = cp1252[UCHAR(*p++)-0x80];
	} else {
	    ch = UCHAR(*p++);
	}
	*w++ = ch;
    }
    *w = '\0';
    Tcl_DStringSetLength(dsPtr,
................................................................................
    int fullchar;
    Tcl_UniChar find = 0;

    while (1) {
	len = TclUtfToUniChar(src, &find);
	fullchar = find;
#if TCL_UTF_MAX <= 4
	if ((ch >= 0xD800) && (len < 3)) {
	    len += TclUtfToUniChar(src + len, &find);
	    fullchar = (((fullchar & 0x3ff) << 10) | (find & 0x3ff)) + 0x10000;
	}
#endif
	if (fullchar == ch) {
	    return src;
	}
	if (*src == '\0') {
................................................................................
    const char *last;

    last = NULL;
    while (1) {
	len = TclUtfToUniChar(src, &find);
	fullchar = find;
#if TCL_UTF_MAX <= 4
	if ((ch >= 0xD800) && (len < 3)) {
	    len += TclUtfToUniChar(src + len, &find);
	    fullchar = (((fullchar & 0x3ff) << 10) | (find & 0x3ff)) + 0x10000;
	}
#endif
	if (fullchar == ch) {
	    last = src;
	}
	if (*src == '\0') {
................................................................................
Tcl_UtfNext(
    const char *src)		/* The current location in the string. */
{
    Tcl_UniChar ch = 0;
    size_t len = TclUtfToUniChar(src, &ch);

#if TCL_UTF_MAX <= 4
    if ((ch >= 0xD800) && (len < 3)) {
	len += TclUtfToUniChar(src + len, &ch);
    }
#endif
    return src + len;
}
 
/*
 *---------------------------------------------------------------------------
................................................................................
Tcl_UniCharAtIndex(
    register const char *src,	/* The UTF-8 string to dereference. */
    register size_t index)		/* The position of the desired character. */
{
    Tcl_UniChar ch = 0;
    int fullchar = 0;
#if TCL_UTF_MAX <= 4
	size_t len = 0;
#endif

    src += TclUtfToUniChar(src, &ch);
    while (index--) {
#if TCL_UTF_MAX <= 4
	src += (len = TclUtfToUniChar(src, &ch));
#else
	src += TclUtfToUniChar(src, &ch);
#endif
    }
    fullchar = ch;
#if TCL_UTF_MAX <= 4
    if ((ch >= 0xD800) && (len < 3)) {
	/* If last Tcl_UniChar was a high surrogate, combine with low surrogate */
	(void)TclUtfToUniChar(src, &ch);
	fullchar = (((fullchar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
    }
#endif
    return fullchar;
}
................................................................................
const char *
Tcl_UtfAtIndex(
    register const char *src,	/* The UTF-8 string. */
    register size_t index)		/* The position of the desired character. */
{
    Tcl_UniChar ch = 0;
#if TCL_UTF_MAX <= 4
    size_t len = 0;
#endif

    if (index != TCL_AUTO_LENGTH) {
	while (index--) {
#if TCL_UTF_MAX <= 4
	    src += (len = TclUtfToUniChar(src, &ch));
#else
	    src += TclUtfToUniChar(src, &ch);
#endif
	}
#if TCL_UTF_MAX <= 4
    if ((ch >= 0xD800) && (len < 3)) {
	/* Index points at character following high Surrogate */
	src += TclUtfToUniChar(src, &ch);
    }
#endif
    }
    return src;
}
 
/*
 *---------------------------------------------------------------------------
................................................................................
int
Tcl_UtfToUpper(
    char *str)			/* String to convert in place. */
{
    Tcl_UniChar ch = 0;
    int upChar;
    char *src, *dst;
    size_t len;

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

    src = dst = str;
    while (*src) {
	len = TclUtfToUniChar(src, &ch);
	upChar = ch;
#if TCL_UTF_MAX <= 4
	if ((ch >= 0xD800) && (len < 3)) {

	    len += TclUtfToUniChar(src + len, &ch);
	    /* Combine surrogates */
	    upChar = (((upChar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
	}
#endif
	upChar = Tcl_UniCharToUpper(upChar);

	/*
	 * 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.
	 */

	if ((len < TclUtfCount(upChar)) || ((upChar & 0xF800) == 0xD800)) {
	    memcpy(dst, src, len);
	    dst += len;
	} else {
	    dst += Tcl_UniCharToUtf(upChar, dst);
	}
	src += len;
    }
    *dst = '\0';
    return (dst - str);
}
 
/*
 *----------------------------------------------------------------------
................................................................................
int
Tcl_UtfToLower(
    char *str)			/* String to convert in place. */
{
    Tcl_UniChar ch = 0;
    int lowChar;
    char *src, *dst;
    size_t len;

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

    src = dst = str;
    while (*src) {
	len = TclUtfToUniChar(src, &ch);
	lowChar = ch;
#if TCL_UTF_MAX <= 4
	if ((ch >= 0xD800) && (len < 3)) {

	    len += TclUtfToUniChar(src + len, &ch);
	    /* Combine surrogates */
	    lowChar = (((lowChar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
	}
#endif
	lowChar = Tcl_UniCharToLower(lowChar);

	/*
	 * 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.
	 */

	if ((len < TclUtfCount(lowChar)) || ((lowChar & 0xF800) == 0xD800)) {
	    memcpy(dst, src, len);
	    dst += len;
	} else {
	    dst += Tcl_UniCharToUtf(lowChar, dst);
	}
	src += len;
    }
    *dst = '\0';
    return (dst - str);
}
 
/*
 *----------------------------------------------------------------------
................................................................................
int
Tcl_UtfToTitle(
    char *str)			/* String to convert in place. */
{
    Tcl_UniChar ch = 0;
    int titleChar, lowChar;
    char *src, *dst;
    size_t len;

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

    src = dst = str;

    if (*src) {
	len = TclUtfToUniChar(src, &ch);
	titleChar = ch;
#if TCL_UTF_MAX <= 4
	if ((ch >= 0xD800) && (len < 3)) {

	    len += TclUtfToUniChar(src + len, &ch);
	    /* Combine surrogates */
	    titleChar = (((titleChar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
	}
#endif
	titleChar = Tcl_UniCharToTitle(titleChar);

	if ((len < TclUtfCount(titleChar)) || ((titleChar & 0xF800) == 0xD800)) {
	    memcpy(dst, src, len);
	    dst += len;
	} else {
	    dst += Tcl_UniCharToUtf(titleChar, dst);
	}
	src += len;
    }
    while (*src) {
	len = TclUtfToUniChar(src, &ch);
	lowChar = ch;
#if TCL_UTF_MAX <= 4
	if ((ch >= 0xD800) && (len < 3)) {

	    len += TclUtfToUniChar(src + len, &ch);
	    /* Combine surrogates */
	    lowChar = (((lowChar & 0x3ff) << 10) | (ch & 0x3ff)) + 0x10000;
	}
#endif
	/* Special exception for Georgian Asomtavruli chars, no titlecase. */
	if ((unsigned)(lowChar - 0x1C90) >= 0x30) {
	    lowChar = Tcl_UniCharToLower(lowChar);
	}

	if ((len < TclUtfCount(lowChar)) || ((lowChar & 0xF800) == 0xD800)) {
	    memcpy(dst, src, len);
	    dst += len;
	} else {
	    dst += Tcl_UniCharToUtf(lowChar, dst);
	}
	src += len;
    }
    *dst = '\0';
    return (dst - str);
}
 
/*
 *----------------------------------------------------------------------

 *	This cache is never cleared.
 *
 *-------------------------------------------------------------------------
 */

#ifdef _WIN32
#define LIBRARY_SIZE	    64

static inline int
WCharToUtf(
    const WCHAR *wSrc,
    char *dst)
{
    char *start = dst;

    while (*wSrc != '\0') {
	dst += Tcl_UniCharToUtf(*wSrc, dst);
	wSrc++;
    }
    *dst = '\0';
    return (int) (dst - start);
}
#endif /* _WIN32 */

Tcl_Obj *
TclZipfs_TclLibrary(void)
{
    Tcl_Obj *vfsInitScript;
    int found;
................................................................................
    /*
     * Look for the library file system within the DLL/shared library.  Note
     * that we must mount the zip file and dll before releasing to search.
     */

#if defined(_WIN32)
    hModule = TclWinGetTclInstance();
    if (GetModuleFileNameW(hModule, wName, MAX_PATH) == 0) {
	GetModuleFileNameA(hModule, dllName, MAX_PATH);
    } else {
	WCharToUtf(wName, dllName);
    }

    if (ZipfsAppHookFindTclInit(dllName) == TCL_OK) {
	return Tcl_NewStringObj(zipfs_literal_tcl_library, -1);
    }
#elif /* !_WIN32 && */ defined(CFG_RUNTIME_DLLFILE)
    if (ZipfsAppHookFindTclInit(
	    CFG_RUNTIME_LIBDIR "/" CFG_RUNTIME_DLLFILE) == TCL_OK) {

 *	This cache is never cleared.
 *
 *-------------------------------------------------------------------------
 */

#ifdef _WIN32
#define LIBRARY_SIZE	    64















#endif /* _WIN32 */

Tcl_Obj *
TclZipfs_TclLibrary(void)
{
    Tcl_Obj *vfsInitScript;
    int found;
................................................................................
    /*
     * Look for the library file system within the DLL/shared library.  Note
     * that we must mount the zip file and dll before releasing to search.
     */

#if defined(_WIN32)
    hModule = TclWinGetTclInstance();
    GetModuleFileNameW(hModule, wName, MAX_PATH);
    WideCharToMultiByte(CP_UTF8, 0, wName, -1, dllName, sizeof(dllName), NULL, NULL);




    if (ZipfsAppHookFindTclInit(dllName) == TCL_OK) {
	return Tcl_NewStringObj(zipfs_literal_tcl_library, -1);
    }
#elif /* !_WIN32 && */ defined(CFG_RUNTIME_DLLFILE)
    if (ZipfsAppHookFindTclInit(
	    CFG_RUNTIME_LIBDIR "/" CFG_RUNTIME_DLLFILE) == TCL_OK) {

    for (w = (TCHAR *)string; w < wEnd; ) {
	if (!blen && ((*w & 0xFC00) != 0xDC00)) {
	    /* Special case for handling high surrogates. */
	    p += Tcl_UniCharToUtf(-1, p);
	}
	blen = Tcl_UniCharToUtf(*w, p);
	p += blen;




	w++;
    }
    if (!blen) {
	/* Special case for handling high surrogates. */
	p += Tcl_UniCharToUtf(-1, p);
    }
    Tcl_DStringSetLength(dsPtr, oldLength + (p - result));

    for (w = (TCHAR *)string; w < wEnd; ) {
	if (!blen && ((*w & 0xFC00) != 0xDC00)) {
	    /* Special case for handling high surrogates. */
	    p += Tcl_UniCharToUtf(-1, p);
	}
	blen = Tcl_UniCharToUtf(*w, p);
	p += blen;
	if ((*w >= 0xD800) && (blen < 3)) {
	    /* Indication that high surrogate is handled */
	    blen = 0;
	}
	w++;
    }
    if (!blen) {
	/* Special case for handling high surrogates. */
	p += Tcl_UniCharToUtf(-1, p);
    }
    Tcl_DStringSetLength(dsPtr, oldLength + (p - result));