Tcl Source Code

	int (*strCmpFn)(const Tcl_UniChar*,const Tcl_UniChar*,unsigned long);
	Tcl_UniChar *p;

	numMatches = 0;
	nocase = (cflags & TCL_REG_NOCASE);
	strCmpFn = nocase ? Tcl_UniCharNcasecmp : Tcl_UniCharNcmp;

	wsrc = TclGetUnicodeFromObj(objv[0], &slen);
	wstring = TclGetUnicodeFromObj(objv[1], &wlen);
	wsubspec = TclGetUnicodeFromObj(objv[2], &wsublen);
	wend = wstring + wlen - (slen ? slen - 1 : 0);
	result = TCL_OK;

	if (slen == 0) {
	    /*
	     * regsub behavior for "" matches between each character. 'string
	     * map' skips the "" case.
	     */

	    if (wstring < wend) {
		resultPtr = Tcl_NewUnicodeObj(wstring, 0);
		Tcl_IncrRefCount(resultPtr);
		for (; wstring < wend; wstring++) {
		    TclAppendUnicodeToObj(resultPtr, wsubspec, wsublen);
		    TclAppendUnicodeToObj(resultPtr, wstring, 1);
		    numMatches++;
		}
		wlen = 0;
	    }
	} else {
	    wsrclc = Tcl_UniCharToLower(*wsrc);
	    for (p = wfirstChar = wstring; wstring < wend; wstring++) {
		if ((*wstring == *wsrc ||
			(nocase && Tcl_UniCharToLower(*wstring)==wsrclc)) &&
			(slen==1 || (strCmpFn(wstring, wsrc,
				(unsigned long) slen) == 0))) {
		    if (numMatches == 0) {
			resultPtr = Tcl_NewUnicodeObj(wstring, 0);
			Tcl_IncrRefCount(resultPtr);
		    }
		    if (p != wstring) {
			TclAppendUnicodeToObj(resultPtr, p, wstring - p);
			p = wstring + slen;
		    } else {
			p += slen;
		    }
		    wstring = p - 1;

		    TclAppendUnicodeToObj(resultPtr, wsubspec, wsublen);
		    numMatches++;
		}
	    }
	    if (numMatches) {
		wlen    = wfirstChar + wlen - p;
		wstring = p;
	    }

     */

    if (objv[1] == objv[0]) {
	objPtr = Tcl_DuplicateObj(objv[1]);
    } else {
	objPtr = objv[1];
    }
    wstring = TclGetUnicodeFromObj(objPtr, &wlen);
    if (objv[2] == objv[0]) {
	subPtr = Tcl_DuplicateObj(objv[2]);
    } else {
	subPtr = objv[2];
    }
    if (!command) {
	wsubspec = TclGetUnicodeFromObj(subPtr, &wsublen);
    }

    result = TCL_OK;

    /*
     * The following loop is to handle multiple matches within the same source
     * string; each iteration handles one match and its corresponding

	    Tcl_IncrRefCount(resultPtr);
	    if (offset > 0) {
		/*
		 * Copy the initial portion of the string in if an offset was
		 * specified.
		 */

		TclAppendUnicodeToObj(resultPtr, wstring, offset);
	    }
	}
	numMatches++;

	/*
	 * Copy the portion of the source string before the match to the
	 * result variable.
	 */

	Tcl_RegExpGetInfo(regExpr, &info);
	start = info.matches[0].start;
	end = info.matches[0].end;
	TclAppendUnicodeToObj(resultPtr, wstring + offset, start);

	/*
	 * In command-prefix mode, the substitutions are added as quoted
	 * arguments to the subSpec to form a command, that is then executed
	 * and the result used as the string to substitute in. Actually,
	 * everything is passed through Tcl_EvalObjv, as that's much faster.
	 */

	    Tcl_ResetResult(interp);

	    /*
	     * Refetch the unicode, in case the representation was smashed by
	     * the user code.
	     */

	    wstring = TclGetUnicodeFromObj(objPtr, &wlen);

	    offset += end;
	    if (end == 0 || start == end) {
		/*
		 * Always consume at least one character of the input string
		 * in order to prevent infinite loops, even when we
		 * technically matched the empty string; we must not match
		 * again at the same spot.
		 */

		if (offset < wlen) {
		    TclAppendUnicodeToObj(resultPtr, wstring + offset, 1);
		}
		offset++;
	    }
	    if (all) {
		continue;
	    } else {
		break;

		idx = 0;
	    } else if (ch == '\\') {
		ch = wsrc[1];
		if ((ch >= '0') && (ch <= '9')) {
		    idx = ch - '0';
		} else if ((ch == '\\') || (ch == '&')) {
		    *wsrc = ch;
		    TclAppendUnicodeToObj(resultPtr, wfirstChar,
			    wsrc - wfirstChar + 1);
		    *wsrc = '\\';
		    wfirstChar = wsrc + 2;
		    wsrc++;
		    continue;
		} else {
		    continue;
		}
	    } else {
		continue;
	    }

	    if (wfirstChar != wsrc) {
		TclAppendUnicodeToObj(resultPtr, wfirstChar,
			wsrc - wfirstChar);
	    }

	    if (idx <= info.nsubs) {
		subStart = info.matches[idx].start;
		subEnd = info.matches[idx].end;
		if ((subStart >= 0) && (subEnd >= 0)) {
		    TclAppendUnicodeToObj(resultPtr,
			    wstring + offset + subStart, subEnd - subStart);
		}
	    }

	    if (*wsrc == '\\') {
		wsrc++;
	    }
	    wfirstChar = wsrc + 1;
	}

	if (wfirstChar != wsrc) {
	    TclAppendUnicodeToObj(resultPtr, wfirstChar, wsrc - wfirstChar);
	}

	if (end == 0) {
	    /*
	     * Always consume at least one character of the input string in
	     * order to prevent infinite loops.
	     */

	    if (offset < wlen) {
		TclAppendUnicodeToObj(resultPtr, wstring + offset, 1);
	    }
	    offset++;
	} else {
	    offset += end;
	    if (start == end) {
		/*
		 * We matched an empty string, which means we must go forward
		 * one more step so we don't match again at the same spot.
		 */

		if (offset < wlen) {
		    TclAppendUnicodeToObj(resultPtr, wstring + offset, 1);
		}
		offset++;
	    }
	}
	if (!all) {
	    break;
	}

	 * On zero matches, just ignore the offset, since it shouldn't matter
	 * to us in this case, and the user may have skewed it.
	 */

	resultPtr = objv[1];
	Tcl_IncrRefCount(resultPtr);
    } else if (offset < wlen) {
	TclAppendUnicodeToObj(resultPtr, wstring + offset, wlen - offset);
    }
    if (objc == 4) {
	if (Tcl_ObjSetVar2(interp, objv[3], NULL, resultPtr,
		TCL_LEAVE_ERR_MSG) == NULL) {
	    result = TCL_ERROR;
	} else {
	    /*

    if (objv[objc-2] == objv[objc-1]) {
	sourceObj = Tcl_DuplicateObj(objv[objc-1]);
	copySource = 1;
    } else {
	sourceObj = objv[objc-1];
    }
    ustring1 = TclGetUnicodeFromObj(sourceObj, &length1);
    if (length1 == 0) {
	/*
	 * Empty input string, just stop now.
	 */

	goto done;
    }

	 * identical to the multi-pair case. This will be >30% faster on
	 * larger strings.
	 */

	int mapLen, u2lc;
	Tcl_UniChar *mapString;

	ustring2 = TclGetUnicodeFromObj(mapElemv[0], &length2);
	p = ustring1;
	if ((length2 > length1) || (length2 == 0)) {
	    /*
	     * Match string is either longer than input or empty.
	     */

	    ustring1 = end;
	} else {
	    mapString = TclGetUnicodeFromObj(mapElemv[1], &mapLen);
	    u2lc = (nocase ? Tcl_UniCharToLower(*ustring2) : 0);
	    for (; ustring1 < end; ustring1++) {
		if (((*ustring1 == *ustring2) ||
			(nocase&&Tcl_UniCharToLower(*ustring1)==u2lc)) &&
			(length2==1 || strCmpFn(ustring1, ustring2,
				(unsigned long) length2) == 0)) {
		    if (p != ustring1) {
			TclAppendUnicodeToObj(resultPtr, p, ustring1-p);
			p = ustring1 + length2;
		    } else {
			p += length2;
		    }
		    ustring1 = p - 1;

		    TclAppendUnicodeToObj(resultPtr, mapString, mapLen);
		}
	    }
	}
    } else {
	Tcl_UniChar **mapStrings;
	int *mapLens, *u2lc = NULL;

	/*
	 * Precompute pointers to the unicode string and length. This saves us
	 * repeated function calls later, significantly speeding up the
	 * algorithm. We only need the lowercase first char in the nocase
	 * case.
	 */

	mapStrings = TclStackAlloc(interp, mapElemc*2*sizeof(Tcl_UniChar *));
	mapLens = TclStackAlloc(interp, mapElemc * 2 * sizeof(int));
	if (nocase) {
	    u2lc = TclStackAlloc(interp, mapElemc * sizeof(int));
	}
	for (index = 0; index < mapElemc; index++) {
	    mapStrings[index] = TclGetUnicodeFromObj(mapElemv[index],
		    mapLens+index);
	    if (nocase && ((index % 2) == 0)) {
		u2lc[index/2] = Tcl_UniCharToLower(*mapStrings[index]);
	    }
	}
	for (p = ustring1; ustring1 < end; ustring1++) {
	    for (index = 0; index < mapElemc; index += 2) {

			(end-ustring1 >= length2) && ((length2 == 1) ||
			!strCmpFn(ustring2, ustring1, length2))) {
		    if (p != ustring1) {
			/*
			 * Put the skipped chars onto the result first.
			 */

			TclAppendUnicodeToObj(resultPtr, p, ustring1-p);
			p = ustring1 + length2;
		    } else {
			p += length2;
		    }

		    /*
		     * Adjust len to be full length of matched string.
		     */

		    ustring1 = p - 1;

		    /*
		     * Append the map value to the unicode string.
		     */

		    TclAppendUnicodeToObj(resultPtr,
			    mapStrings[index+1], mapLens[index+1]);
		    break;
		}
	    }
	}
	if (nocase) {
	    TclStackFree(interp, u2lc);
	}
	TclStackFree(interp, mapLens);
	TclStackFree(interp, mapStrings);
    }
    if (p != ustring1) {
	/*
	 * Put the rest of the unmapped chars onto result.
	 */

	TclAppendUnicodeToObj(resultPtr, p, ustring1 - p);
    }
    Tcl_SetObjResult(interp, resultPtr);
  done:
    if (mapWithDict) {
	TclStackFree(interp, mapElemv);
    }
    if (copySource) {

 * Bison generates several labels that happen to be unused. MS Visual C++
 * doesn't like that, and complains. Tell it to shut up.
 */

#ifdef _MSC_VER
#pragma warning( disable : 4102 )
#endif /* _MSC_VER */












/*
 * yyparse will accept a 'struct DateInfo' as its parameter; that's where the
 * parsed fields will be returned.
 */

typedef struct DateInfo {

    Tcl_Obj* messages;		/* Error messages */
    const char* separatrix;	/* String separating messages */

    time_t dateYear;
    time_t dateMonth;
    time_t dateDay;
    int dateHaveDate;

    time_t dateHour;
    time_t dateMinutes;
    time_t dateSeconds;
    int dateMeridian;
    int dateHaveTime;

    time_t dateTimezone;
    int dateDSTmode;
    int dateHaveZone;

    time_t dateRelMonth;

/*
 * Daylight-savings mode: on, off, or not yet known.
 */

typedef enum _DSTMODE {
    DSTon, DSToff, DSTmaybe
} DSTMODE;

/*
 * Meridian: am, pm, or 24-hour style.
 */

typedef enum _MERIDIAN {
    MERam, MERpm, MER24
} MERIDIAN;




# ifndef YY_NULLPTR
#  if defined __cplusplus && 201103L <= __cplusplus
#   define YY_NULLPTR nullptr
#  else
#   define YY_NULLPTR 0
#  endif

	if (value3Ptr == value2Ptr) {
	    objResultPtr = valuePtr;
	    goto doneStringMap;
	} else if (valuePtr == value2Ptr) {
	    objResultPtr = value3Ptr;
	    goto doneStringMap;
	}
	ustring1 = TclGetUnicodeFromObj(valuePtr, &length);
	if (length == 0) {
	    objResultPtr = valuePtr;
	    goto doneStringMap;
	}
	ustring2 = TclGetUnicodeFromObj(value2Ptr, &length2);
	if (length2 > length || length2 == 0) {
	    objResultPtr = valuePtr;
	    goto doneStringMap;
	} else if (length2 == length) {
	    if (memcmp(ustring1, ustring2, sizeof(Tcl_UniChar) * length)) {
		objResultPtr = valuePtr;
	    } else {
		objResultPtr = value3Ptr;
	    }
	    goto doneStringMap;
	}
	ustring3 = TclGetUnicodeFromObj(value3Ptr, &length3);

	objResultPtr = Tcl_NewUnicodeObj(ustring1, 0);
	p = ustring1;
	end = ustring1 + length;
	for (; ustring1 < end; ustring1++) {
	    if ((*ustring1 == *ustring2) && (length2==1 ||
		    memcmp(ustring1, ustring2, sizeof(Tcl_UniChar) * length2)
			    == 0)) {
		if (p != ustring1) {
		    TclAppendUnicodeToObj(objResultPtr, p, ustring1-p);
		    p = ustring1 + length2;
		} else {
		    p += length2;
		}
		ustring1 = p - 1;

		TclAppendUnicodeToObj(objResultPtr, ustring3, length3);
	    }
	}
	if (p != ustring1) {
	    /*
	     * Put the rest of the unmapped chars onto result.
	     */

	    TclAppendUnicodeToObj(objResultPtr, p, ustring1 - p);
	}
    doneStringMap:
	TRACE_WITH_OBJ(("%.20s %.20s %.20s => ",
		O2S(value2Ptr), O2S(value3Ptr), O2S(valuePtr)), objResultPtr);
	NEXT_INST_V(1, 3, 1);

    case INST_STR_FIND:

	NEXT_INST_F(1, 2, 1);

    case INST_STR_CLASS:
	opnd = TclGetInt1AtPtr(pc+1);
	valuePtr = OBJ_AT_TOS;
	TRACE(("%s \"%.30s\" => ", tclStringClassTable[opnd].name,
		O2S(valuePtr)));
	ustring1 = TclGetUnicodeFromObj(valuePtr, &length);
	match = 1;
	if (length > 0) {
	    end = ustring1 + length;
	    for (p=ustring1 ; p<end ; p++) {
		if (!tclStringClassTable[opnd].comparator(*p)) {
		    match = 0;
		    break;

	 * both.
	 */

	if (TclHasIntRep(valuePtr, &tclStringType)
		|| TclHasIntRep(value2Ptr, &tclStringType)) {
	    Tcl_UniChar *ustring1, *ustring2;

	    ustring1 = TclGetUnicodeFromObj(valuePtr, &length);
	    ustring2 = TclGetUnicodeFromObj(value2Ptr, &length2);
	    match = TclUniCharMatch(ustring1, length, ustring2, length2,
		    nocase);
	} else if (TclIsPureByteArray(valuePtr) && !nocase) {
	    unsigned char *bytes1, *bytes2;

	    bytes1 = Tcl_GetByteArrayFromObj(valuePtr, &length);
	    bytes2 = Tcl_GetByteArrayFromObj(value2Ptr, &length2);

 * doesn't like that, and complains. Tell it to shut up.
 */

#ifdef _MSC_VER
#pragma warning( disable : 4102 )
#endif /* _MSC_VER */









/*
 * yyparse will accept a 'struct DateInfo' as its parameter; that's where the
 * parsed fields will be returned.
 */

typedef struct DateInfo {

    Tcl_Obj* messages;		/* Error messages */
    const char* separatrix;	/* String separating messages */

    time_t dateYear;
    time_t dateMonth;
    time_t dateDay;
    int dateHaveDate;

    time_t dateHour;
    time_t dateMinutes;
    time_t dateSeconds;
    int dateMeridian;
    int dateHaveTime;

    time_t dateTimezone;
    int dateDSTmode;
    int dateHaveZone;

    time_t dateRelMonth;

 * Daylight-savings mode: on, off, or not yet known.
 */

typedef enum _DSTMODE {
    DSTon, DSToff, DSTmaybe
} DSTMODE;

/*
 * Meridian: am, pm, or 24-hour style.
 */

typedef enum _MERIDIAN {
    MERam, MERpm, MER24
} MERIDIAN;

%}

%union {
    time_t Number;
    enum _MERIDIAN Meridian;
}

}

# TIP 431: temporary directory creation function
declare 258 {
    Tcl_Obj *TclpCreateTemporaryDirectory(Tcl_Obj *dirObj,
	    Tcl_Obj *basenameObj)
}
# TIP 548
declare 259 {
    Tcl_UniChar *TclGetUnicodeFromObj(Tcl_Obj *objPtr, int *lengthPtr)
}
declare 260 {
    void TclAppendUnicodeToObj(Tcl_Obj *objPtr, const Tcl_UniChar *unicode,
	    int length)
}

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

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

interface tclIntPlat

EXTERN void		TclStaticPackage(Tcl_Interp *interp,
				const char *pkgName,
				Tcl_PackageInitProc *initProc,
				Tcl_PackageInitProc *safeInitProc);
/* 258 */
EXTERN Tcl_Obj *	TclpCreateTemporaryDirectory(Tcl_Obj *dirObj,
				Tcl_Obj *basenameObj);
/* 259 */
EXTERN Tcl_UniChar *	TclGetUnicodeFromObj(Tcl_Obj *objPtr, int *lengthPtr);
/* 260 */
EXTERN void		TclAppendUnicodeToObj(Tcl_Obj *objPtr,
				const Tcl_UniChar *unicode, int length);

typedef struct TclIntStubs {
    int magic;
    void *hooks;

    void (*reserved0)(void);
    void (*reserved1)(void);

    Tcl_Obj * (*tclPtrGetVar) (Tcl_Interp *interp, Tcl_Var varPtr, Tcl_Var arrayPtr, Tcl_Obj *part1Ptr, Tcl_Obj *part2Ptr, const int flags); /* 252 */
    Tcl_Obj * (*tclPtrSetVar) (Tcl_Interp *interp, Tcl_Var varPtr, Tcl_Var arrayPtr, Tcl_Obj *part1Ptr, Tcl_Obj *part2Ptr, Tcl_Obj *newValuePtr, const int flags); /* 253 */
    Tcl_Obj * (*tclPtrIncrObjVar) (Tcl_Interp *interp, Tcl_Var varPtr, Tcl_Var arrayPtr, Tcl_Obj *part1Ptr, Tcl_Obj *part2Ptr, Tcl_Obj *incrPtr, const int flags); /* 254 */
    int (*tclPtrObjMakeUpvar) (Tcl_Interp *interp, Tcl_Var otherPtr, Tcl_Obj *myNamePtr, int myFlags); /* 255 */
    int (*tclPtrUnsetVar) (Tcl_Interp *interp, Tcl_Var varPtr, Tcl_Var arrayPtr, Tcl_Obj *part1Ptr, Tcl_Obj *part2Ptr, const int flags); /* 256 */
    void (*tclStaticPackage) (Tcl_Interp *interp, const char *pkgName, Tcl_PackageInitProc *initProc, Tcl_PackageInitProc *safeInitProc); /* 257 */
    Tcl_Obj * (*tclpCreateTemporaryDirectory) (Tcl_Obj *dirObj, Tcl_Obj *basenameObj); /* 258 */
    Tcl_UniChar * (*tclGetUnicodeFromObj) (Tcl_Obj *objPtr, int *lengthPtr); /* 259 */
    void (*tclAppendUnicodeToObj) (Tcl_Obj *objPtr, const Tcl_UniChar *unicode, int length); /* 260 */
} TclIntStubs;

extern const TclIntStubs *tclIntStubsPtr;

#ifdef __cplusplus
}
#endif

	(tclIntStubsPtr->tclPtrObjMakeUpvar) /* 255 */
#define TclPtrUnsetVar \
	(tclIntStubsPtr->tclPtrUnsetVar) /* 256 */
#define TclStaticPackage \
	(tclIntStubsPtr->tclStaticPackage) /* 257 */
#define TclpCreateTemporaryDirectory \
	(tclIntStubsPtr->tclpCreateTemporaryDirectory) /* 258 */
#define TclGetUnicodeFromObj \
	(tclIntStubsPtr->tclGetUnicodeFromObj) /* 259 */
#define TclAppendUnicodeToObj \
	(tclIntStubsPtr->tclAppendUnicodeToObj) /* 260 */

#endif /* defined(USE_TCL_STUBS) */

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

#undef TCL_STORAGE_CLASS
#define TCL_STORAGE_CLASS DLLIMPORT

    /*
     * Save the target object so we can extract strings from it later.
     */

    regexpPtr->string = NULL;
    regexpPtr->objPtr = textObj;

    udata = TclGetUnicodeFromObj(textObj, &length);

    if (offset > length) {
	offset = length;
    }
    udata += offset;
    length -= offset;

#ifndef TCL_NO_DEPRECATED
#undef Tcl_GetUnicode
Tcl_UniChar *
Tcl_GetUnicode(
    Tcl_Obj *objPtr)		/* The object to find the unicode string
				 * for. */
{
    return TclGetUnicodeFromObj(objPtr, NULL);
}
#endif /* TCL_NO_DEPRECATED */

/*
 *----------------------------------------------------------------------
 *
 * TclGetUnicodeFromObj --
 *
 *	Get the Unicode form of the String object with length. If the object
 *	is not already a String object, it will be converted to one. If the
 *	String object does not have a Unicode rep, then one is create from the
 *	UTF string format.
 *
 * Results:
 *	Returns a pointer to the object's internal Unicode string.
 *
 * Side effects:
 *	Converts the object to have the String internal rep.
 *
 *----------------------------------------------------------------------
 */

Tcl_UniChar *
TclGetUnicodeFromObj(
    Tcl_Obj *objPtr,		/* The object to find the unicode string
				 * for. */
    int *lengthPtr)		/* If non-NULL, the location where the string
				 * rep's unichar length should be stored. If
				 * NULL, no length is stored. */
{
    String *stringPtr;

{
    Tcl_AppendLimitedToObj(objPtr, bytes, length, INT_MAX, NULL);
}

/*
 *----------------------------------------------------------------------
 *
 * TclAppendUnicodeToObj --
 *
 *	This function appends a Unicode string to an object in the most
 *	efficient manner possible. Length must be >= 0.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Invalidates the string rep and creates a new Unicode string.
 *
 *----------------------------------------------------------------------
 */

void
TclAppendUnicodeToObj(
    Tcl_Obj *objPtr,		/* Points to the object to append to. */
    const Tcl_UniChar *unicode,	/* The unicode string to append to the
				 * object. */
    int length)			/* Number of chars in "unicode". */
{
    String *stringPtr;

    if (stringPtr->hasUnicode) {
	/*
	 * If appendObjPtr is not of the "String" type, don't convert it.
	 */

	if (TclHasIntRep(appendObjPtr, &tclStringType)) {
	    Tcl_UniChar *unicode =
		    TclGetUnicodeFromObj(appendObjPtr, &numChars);

	    AppendUnicodeToUnicodeRep(objPtr, unicode, numChars);
	} else {
	    bytes = TclGetStringFromObj(appendObjPtr, &length);
	    AppendUtfToUnicodeRep(objPtr, bytes, length);
	}
	return;

    }

    if (binary) {
	/* Result will be pure byte array. Pre-size it */
	Tcl_GetByteArrayFromObj(objPtr, &length);
    } else if (unichar) {
	/* Result will be pure Tcl_UniChar array. Pre-size it. */
	TclGetUnicodeFromObj(objPtr, &length);
    } else {
	/* Result will be concat of string reps. Pre-size it. */
	Tcl_GetStringFromObj(objPtr, &length);
    }

    if (length == 0) {
	/* Any repeats of empty is empty. */

	    return NULL;
	}
	Tcl_SetObjLength(objResultPtr, length);
	while (count - done > done) {
	    Tcl_AppendObjToObj(objResultPtr, objResultPtr);
	    done *= 2;
	}
	TclAppendUnicodeToObj(objResultPtr, Tcl_GetUnicode(objResultPtr),
		(count - done) * length);
    } else {
	/*
	 * Efficiently concatenate string reps.
	 */

	if (!inPlace || Tcl_IsShared(objPtr)) {

	oc = objc;
	do {
	    Tcl_Obj *objPtr = *ov++;

	    if ((objPtr->bytes == NULL) || (objPtr->length)) {
		int numChars;

		TclGetUnicodeFromObj(objPtr, &numChars); /* PANIC? */
		if (numChars) {
		    last = objc - oc;
		    if (length == 0) {
			first = last;
		    } else if (numChars > INT_MAX - length) {
			goto overflow;
		    }

	if (inPlace && !Tcl_IsShared(*objv)) {
	    int start;

	    objResultPtr = *objv++; objc--;

	    /* Ugly interface! Force resize of the unicode array. */
	    TclGetUnicodeFromObj(objResultPtr, &start);
	    Tcl_InvalidateStringRep(objResultPtr);
	    if (0 == Tcl_AttemptSetObjLength(objResultPtr, length)) {
		if (interp) {
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    	"concatenation failed: unable to alloc %"
			TCL_Z_MODIFIER "u bytes",
			STRING_SIZE(length)));

	    dst = Tcl_GetUnicode(objResultPtr);
	}
	while (objc--) {
	    Tcl_Obj *objPtr = *objv++;

	    if ((objPtr->bytes == NULL) || (objPtr->length)) {
		int more;
		Tcl_UniChar *src = TclGetUnicodeFromObj(objPtr, &more);
		memcpy(dst, src, more * sizeof(Tcl_UniChar));
		dst += more;
	    }
	}
    } else {
	/* Efficiently concatenate string reps */
	char *dst;

	     * Do a unicode-specific comparison if both of the args are of
	     * String type. If the char length == byte length, we can do a
	     * memcmp. In benchmark testing this proved the most efficient
	     * check between the unicode and string comparison operations.
	     */

	    if (nocase) {
		s1 = (char *) TclGetUnicodeFromObj(value1Ptr, &s1len);
		s2 = (char *) TclGetUnicodeFromObj(value2Ptr, &s2len);
		memCmpFn = (memCmpFn_t)Tcl_UniCharNcasecmp;
	    } else {
		s1len = Tcl_GetCharLength(value1Ptr);
		s2len = Tcl_GetCharLength(value2Ptr);
		if ((s1len == value1Ptr->length)
			&& (value1Ptr->bytes != NULL)
			&& (s2len == value2Ptr->length)

     * locking down in practice more firmly just what encodings produce
     * what supported results for the objPtr->bytes values.  For now,
     * do only the well-defined Tcl_UniChar array search.
     */

    {
	Tcl_UniChar *check, *end, *uh;
	Tcl_UniChar *un = TclGetUnicodeFromObj(needle, &ln);

	uh = TclGetUnicodeFromObj(haystack, &lh);
	if ((lh < ln) || (start > lh - ln)) {
	    /* Don't start the loop if there cannot be a valid answer */
	    return -1;
	}
	end = uh + lh;

	for (check = uh + start; check + ln <= end; check++) {

	    }
	    check--;
	}
	return -1;
    }

    {
	Tcl_UniChar *check, *uh = TclGetUnicodeFromObj(haystack, &lh);
	Tcl_UniChar *un = TclGetUnicodeFromObj(needle, &ln);

	if (last >= lh) {
	    last = lh - 1;
	}
	if (last + 1 < ln) {
	    /* Don't start the loop if there cannot be a valid answer */
	    return -1;

     * when it can be determined objPtr->bytes points to a string of
     * all single-byte characters so we can index it directly.
     */

    /* The traditional implementation... */
    {
	int numChars;
	Tcl_UniChar *ustring = TclGetUnicodeFromObj(objPtr, &numChars);

	/* TODO: Is there an in-place option worth pursuing here? */

	result = Tcl_NewUnicodeObj(ustring, first);
	if (insertPtr) {
	    Tcl_AppendObjToObj(result, insertPtr);
	}
	if (first + count < numChars) {
	    TclAppendUnicodeToObj(result, ustring + first + count,
		    numChars - first - count);
	}

	return result;
    }
}


#   define TclFindNamespace Tcl_FindNamespace
#   define TclFindCommand Tcl_FindCommand
#   define TclGetCommandFromObj Tcl_GetCommandFromObj
#   define TclGetCommandFullName Tcl_GetCommandFullName
#   define TclpLocaltime_unix TclpLocaltime
#   define TclpGmtime_unix TclpGmtime
#   define TclOldFreeObj TclFreeObj
#   define Tcl_GetUnicodeFromObj TclGetUnicodeFromObj
#   define Tcl_AppendUnicodeToObj TclAppendUnicodeToObj

static int
seekOld(
    Tcl_Channel chan,		/* The channel on which to seek. */
    int offset,			/* Offset to seek to. */
    int mode)			/* Relative to which location to seek? */
{

    TclPtrGetVar, /* 252 */
    TclPtrSetVar, /* 253 */
    TclPtrIncrObjVar, /* 254 */
    TclPtrObjMakeUpvar, /* 255 */
    TclPtrUnsetVar, /* 256 */
    TclStaticPackage, /* 257 */
    TclpCreateTemporaryDirectory, /* 258 */
    TclGetUnicodeFromObj, /* 259 */
    TclAppendUnicodeToObj, /* 260 */
};

static const TclIntPlatStubs tclIntPlatStubs = {
    TCL_STUB_MAGIC,
    0,
#if !defined(_WIN32) && !defined(__CYGWIN__) && !defined(MAC_OSX_TCL) /* UNIX */
    TclGetAndDetachPids, /* 0 */

    int varIndex, option, i, length;
#define MAX_STRINGS 11
    const char *index, *string, *strings[MAX_STRINGS+1];
    String *strPtr;
    Tcl_Obj **varPtr;
    static const char *const options[] = {
	"append", "appendstrings", "get", "get2", "length", "length2",
	"set", "set2", "setlength", "maxchars", "getunicode",
	"appendself", "appendself2", NULL
    };

    if (objc < 3) {
	wrongNumArgs:
	Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
	return TCL_ERROR;
    }

		strPtr = varPtr[varIndex]->internalRep.twoPtrValue.ptr1;
		length = strPtr->maxChars;
	    } else {
		length = -1;
	    }
	    Tcl_SetIntObj(Tcl_GetObjResult(interp), length);
	    break;
	case 10:			/* getunicode */
	    if (objc != 3) {
		goto wrongNumArgs;
	    }
	    TclGetUnicodeFromObj(varPtr[varIndex], NULL);
	    break;
	case 11:			/* appendself */
	    if (objc != 4) {
		goto wrongNumArgs;
	    }
	    if (varPtr[varIndex] == NULL) {
		SetVarToObj(varPtr, varIndex, Tcl_NewObj());
	    }

			"index value out of range", -1));
		return TCL_ERROR;
	    }

	    Tcl_AppendToObj(varPtr[varIndex], string + i, length - i);
	    Tcl_SetObjResult(interp, varPtr[varIndex]);
	    break;
	case 12:			/* appendself2 */
	    if (objc != 4) {
		goto wrongNumArgs;
	    }
	    if (varPtr[varIndex] == NULL) {
		SetVarToObj(varPtr, varIndex, Tcl_NewObj());
	    }

	    /*
	     * If the object bound to variable "varIndex" is shared, we must
	     * "copy on write" and append to a copy of the object.
	     */

	    if (Tcl_IsShared(varPtr[varIndex])) {
		SetVarToObj(varPtr, varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
	    }

	    unicode = TclGetUnicodeFromObj(varPtr[varIndex], &length);

	    if (Tcl_GetIntFromObj(interp, objv[3], &i) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if ((i < 0) || (i > length)) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"index value out of range", -1));
		return TCL_ERROR;
	    }

	    TclAppendUnicodeToObj(varPtr[varIndex], unicode + i, length - i);
	    Tcl_SetObjResult(interp, varPtr[varIndex]);
	    break;
    }

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

     * XXX: TclReToGlob tells us about
    trivial = nocase ? 0 : TclMatchIsTrivial(TclGetString(ptnObj));
     */

    if (TclHasIntRep(strObj, &tclStringType) || (strObj->typePtr == NULL)) {
	Tcl_UniChar *udata, *uptn;

	udata = TclGetUnicodeFromObj(strObj, &length);
	uptn  = TclGetUnicodeFromObj(ptnObj, &plen);
	match = TclUniCharMatch(udata, length, uptn, plen, flags);
    } else if (TclIsPureByteArray(strObj) && TclIsPureByteArray(ptnObj)
		&& !flags) {
	unsigned char *data, *ptn;

	data = Tcl_GetByteArrayFromObj(strObj, &length);
	ptn  = Tcl_GetByteArrayFromObj(ptnObj, &plen);

    testConstraint testbytestring   [llength [info commands testbytestring]]
    testConstraint testchannel      [llength [info commands testchannel]]
    testConstraint openpipe         1
    testConstraint testfevent       [llength [info commands testfevent]]
    testConstraint testchannelevent [llength [info commands testchannelevent]]
    testConstraint testmainthread   [llength [info commands testmainthread]]


    # You need a *very* special environment to do some tests.  In particular,
    # many file systems do not support large-files...
    testConstraint largefileSupport [expr {$::tcl_platform(os) ne "Darwin"}]

    # some tests can only be run is umask is 2 if "umask" cannot be run, the
    # tests will be skipped.

    variable x running
    set l abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz
    proc writelots {s l} {
	for {set i 0} {$i < 2000} {incr i} {
	    chan puts $s $l
	}
    }
} -constraints {socket tempNotMac fileevent} -body {
    proc accept {s a p} {
	variable x
	chan event $s readable [namespace code [list readit $s]]
	chan configure $s -blocking off
	set x accepted
    }
    proc readit {s} {

testConstraint testbytestring [llength [info commands testbytestring]]
testConstraint testchannel      [llength [info commands testchannel]]
testConstraint openpipe         1
testConstraint testfevent       [llength [info commands testfevent]]
testConstraint testchannelevent [llength [info commands testchannelevent]]
testConstraint testmainthread   [llength [info commands testmainthread]]
testConstraint testobj		[llength [info commands testobj]]


# You need a *very* special environment to do some tests.  In
# particular, many file systems do not support large-files...
testConstraint largefileSupport [expr {$::tcl_platform(os) ne "Darwin"}]

# some tests can only be run is umask is 2
# if "umask" cannot be run, the tests will be skipped.

    close $f
    lappend l [file size $path(test1)]
    set l
} {0 60 72}
set path(pipe)   [makeFile {} pipe]
set path(output) [makeFile {} output]
test io-27.6 {FlushChannel, async flushing, async close} \
	{stdio asyncPipeClose openpipe} {
    # This test may fail on old Unix systems (seen on IRIX64 6.5) with
    # obsolete gettimeofday() calls.  See Tcl Bugs 3530533, 1942197.
    file delete $path(pipe)
    file delete $path(output)
    set f [open $path(pipe) w]
    puts $f "set f \[[list open $path(output) w]]"
    puts $f {

    # allow a little time for the background process to close.
    # otherwise, the following test fails on the [file delete $path(output)
    # on Windows because a process still has the file open.
    after 100 set v 1; vwait v
    set result
} ok
test io-29.32 {Tcl_WriteChars, background flush to slow reader} \
	{stdio asyncPipeClose openpipe} {
    # This test may fail on old Unix systems (seen on IRIX64 6.5) with
    # obsolete gettimeofday() calls.  See Tcl Bugs 3530533, 1942197.
    file delete $path(pipe)
    file delete $path(output)
    set f [open $path(pipe) w]
    puts $f "set f \[[list open $path(output) w]]"
    puts $f {fconfigure $f -translation lf}

} 1
test stringObj-13.8 {Tcl_GetCharLength with identity nulls} {testobj testbytestring} {
    string length [testbytestring \x01\x00\x02]
} 3

test stringObj-14.1 {Tcl_SetObjLength on pure unicode object} testobj {
    teststringobj set 1 foo
    teststringobj getunicode 1
    teststringobj append 1 bar -1
    teststringobj getunicode 1
    teststringobj append 1 bar -1
    teststringobj setlength 1 0
    teststringobj append 1 bar -1
    teststringobj get 1
} {bar}

test stringObj-15.1 {Tcl_Append*ToObj: self appends} testobj {

test utf-25.1 {Tcl_UniCharNcasecmp} -constraints teststringobj \
    -setup {
	testobj freeallvars
    } \
    -body {
	teststringobj set 1 a
	teststringobj set 2 b
	teststringobj getunicode 1
	teststringobj getunicode 2
	string compare -nocase [teststringobj get 1] [teststringobj get 2]
    } \
    -cleanup {
	testobj freeallvars
    } \
    -result -1
test utf-25.2 {Tcl_UniCharNcasecmp} -constraints teststringobj \
    -setup {
	testobj freeallvars
    } \
    -body {
	teststringobj set 1 b
	teststringobj set 2 a
	teststringobj getunicode 1
	teststringobj getunicode 2
	string compare -nocase [teststringobj get 1] [teststringobj get 2]
    } \
    -cleanup {
	testobj freeallvars
    } \
    -result 1
test utf-25.3 {Tcl_UniCharNcasecmp} -constraints teststringobj \
    -setup {
	testobj freeallvars
    } \
    -body {
	teststringobj set 1 B
	teststringobj set 2 a
	teststringobj getunicode 1
	teststringobj getunicode 2
	string compare -nocase [teststringobj get 1] [teststringobj get 2]
    } \
    -cleanup {
	testobj freeallvars
    } \
    -result 1

test utf-25.4 {Tcl_UniCharNcasecmp} -constraints teststringobj \
    -setup {
	testobj freeallvars
    } \
    -body {
	teststringobj set 1 aBcB
	teststringobj set 2 abca
	teststringobj getunicode 1
	teststringobj getunicode 2
	string compare -nocase [teststringobj get 1] [teststringobj get 2]
    } \
    -cleanup {
	testobj freeallvars
    } \
    -result 1