Tcl Source Code

2011-05-24  Donal K. Fellows  <[email protected]>

	* library/msgcat/msgcat.tcl (msgcat::mcset, msgcat::mcmset): Remove
	some useless code; [dict set] builds dictionary levels for us.

2011-05-17  Andreas Kupries  <[email protected]>

	* generic/tclCompile.c (TclFixupForwardJump): Tracked down and fixed
	* generic/tclBasic.c (TclArgumentBCEnter): the cause of a violation
	of my assertion that 'ePtr->nline == objc' in TclArgumentBCEnter.
	When a bytecode was grown during jump fixup the pc -> command line
	mapping was not updated. When things aligned just wrong the mapping
	would direct command A to the data for command B, with a different
	number of arguments.

2011-05-11  Reinhard Max  <[email protected]>

	* unix/tclUnixSock.c (TcpWatchProc): No need to check for server
	sockets here, as the generic server code already takes care of
	that.
	* tests/socket.test (accept): Add tests to make sure that this
	remains so.

2011-05-10  Don Porter  <[email protected]>

	* generic/tclInt.h:     New internal routines TclScanElement() and
	* generic/tclUtil.c:    TclConvertElement() are rewritten guts of
	machinery to produce string rep of lists.  The new routines avoid
	and correct [Bug 3173086].  See comments for much more detail.

	* generic/tclDictObj.c:         Update all callers.
	* generic/tclIndexObj.c:
	* generic/tclListObj.c:
	* generic/tclUtil.c:
	* tests/list.test:

2011-05-09  Donal K. Fellows  <[email protected]>

	* generic/tclNamesp.c (NamespacePathCmd): Convert to use Tcl_Obj API
	* generic/tclPkg.c (Tcl_PackageObjCmd):   for result generation in
	* generic/tclTimer.c (Tcl_AfterObjCmd):   [after info], [namespace
	path] and [package versions].

2011-05-09  Don Porter  <[email protected]>

	* generic/tclListObj.c:	Revise empty string tests so that we avoid
	potentially expensive string rep generations, especially for dicts.

2011-05-07  Donal K. Fellows  <[email protected]>

	* generic/tclLoad.c (TclGetLoadedPackages): Convert to use Tcl_Obj API
	for result generation.

2011-05-07  Miguel Sofer  <[email protected]>

	* generic/tclInt.h: fix USE_TCLALLOC so that it can be enabled
	* unix/Makefile.in: without editing the Makefile

2011-05-05  Don Porter  <[email protected]>

	* generic/tclListObj.c:	Stop generating string rep of dict when
	converting to list.  Tolerate NULL interps more completely.

2011-05-03  Don Porter  <[email protected]>

	* generic/tclUtil.c:	Tighten Tcl_SplitList().
	* generic/tclListObj.c:	Tighten SetListFromAny().
	* generic/tclDictObj.c:	Tighten SetDictFromAny().
	* tests/join.test:
	* tests/mathop.test:

2011-05-02  Don Porter  <[email protected]>

	* generic/tclCmdMZ.c:	Revised TclFindElement() interface.  The
	* generic/tclDictObj.c:	final argument had been bracePtr, the address
	* generic/tclListObj.c:	of a boolean var, where the caller can be told
	* generic/tclParse.c:	whether or not the parsed list element was
	* generic/tclUtil.c:	enclosed in braces.  In practice, no callers
	really care about that.  What the callers really want to know is
	whether the list element value exists as a literal substring of the
	string being parsed, or whether a call to TclCopyAndCollpase() is
	needed to produce the list element value.  Now the final argument
	is changed to do what callers actually need.  This is a better fit
	for the calls in tclParse.c, where now a good deal of post-processing
	checking for "naked backslashes" is no longer necessary.
	***POTENTIAL INCOMPATIBILITY***

	* generic/tclUtil.c:	TclCountSpaceRuns()

	* generic/tclCmdMZ.c:	Use new routines to replace calls to
	* generic/tclListObj.c:	isspace() and their /* INTL */ risk.
	* generic/tclStrToD.c:
	* generic/tclUtf.c:
	* unix/tclUnixFile.c:

	* generic/tclStringObj.c:	Improved reaction to out of memory.

2011-04-27  Don Porter  <[email protected]>

	* generic/tclCmdMZ.c:	TclFreeIntRep() correction & cleanup.
	* generic/tclExecute.c:
	* generic/tclIndexObj.c:

of arguments.  \fBTcl_VarEval\fR is now deprecated.
.PP
\fBTcl_VarEvalVA\fR is the same as \fBTcl_VarEval\fR except that
instead of taking a variable number of arguments it takes an argument
list. Like \fBTcl_VarEval\fR, \fBTcl_VarEvalVA\fR is deprecated.

.SH "FLAG BITS"
.PP
Any ORed combination of the following values may be used for the
\fIflags\fR argument to procedures such as \fBTcl_EvalObjEx\fR:
.TP 23
\fBTCL_EVAL_DIRECT\fR
.
This flag is only used by \fBTcl_EvalObjEx\fR; it is ignored by
other procedures.  If this flag bit is set, the script is not
compiled to bytecodes; instead it is executed directly
as is done by \fBTcl_EvalEx\fR.  The
\fBTCL_EVAL_DIRECT\fR flag is useful in situations where the
contents of an object are going to change immediately, so the
bytecodes will not be reused in a future execution.  In this case,
it is faster to execute the script directly.
.TP 23
\fBTCL_EVAL_GLOBAL\fR
.
If this flag is set, the script is processed at global level.  This
means that it is evaluated in the global namespace and its variable
context consists of global variables only (it ignores any Tcl
procedures that are active).

.SH "MISCELLANEOUS DETAILS"
.PP
During the processing of a Tcl command it is legal to make nested
calls to evaluate other commands (this is how procedures and
some control structures are implemented).
If a code other than \fBTCL_OK\fR is returned

}
declare 216 {
    void Tcl_Release(ClientData clientData)
}
declare 217 {
    void Tcl_ResetResult(Tcl_Interp *interp)
}
declare 218 generic {
    int Tcl_ScanElement(const char *src, int *flagPtr)
}
declare 219 generic {
    int Tcl_ScanCountedElement(const char *src, int length, int *flagPtr)
}
# Obsolete
declare 220 {
    int Tcl_SeekOld(Tcl_Channel chan, int offset, int mode)
}
declare 221 {
    int Tcl_ServiceAll(void)

 * Flag values passed to Tcl_ConvertElement.
 * TCL_DONT_USE_BRACES forces it not to enclose the element in braces, but to
 *	use backslash quoting instead.
 * TCL_DONT_QUOTE_HASH disables the default quoting of the '#' character. It
 *	is safe to leave the hash unquoted when the element is not the first
 *	element of a list, and this flag can be used by the caller to indicate
 *	that condition.


 */

#define TCL_DONT_USE_BRACES	1
#define TCL_DONT_QUOTE_HASH	8

/*
 * Flag that may be passed to Tcl_GetIndexFromObj to force it to disallow

	 * (1) ePtr->nline == objc
	 * (2) (ePtr->line[word] < 0) => !literal, for all words
	 * (3) (word == 0) => !literal
	 *
	 * Item (2) is why we can use objv to get the literals, and do not
	 * have to save them at compile time.
	 */

        if (ePtr->nline != objc) {
            Tcl_Panic ("TIP 280 data structure inconsistency");
        }

	for (word = 1; word < objc; word++) {
	    if (ePtr->line[word] >= 0) {
		int isnew;
		Tcl_HashEntry *hPtr = Tcl_CreateHashEntry(iPtr->lineLABCPtr,
			objv[word], &isnew);
		CFWordBC *cfwPtr = ckalloc(sizeof(CFWordBC));

	    rangePtr->catchOffset += 3;
	    break;
	default:
	    Tcl_Panic("TclFixupForwardJump: bad ExceptionRange type %d",
		    rangePtr->type);
	}
    }

    /*
     * TIP #280: Adjust the mapping from PC values to the per-command
     * information about arguments and their line numbers.
     *
     * Note: We cannot simply remove an out-of-date entry and then reinsert
     * with the proper PC, because then we might overwrite another entry which
     * was at that location. Therefore we pull (copy + delete) all effected
     * entries (beyond the fixed PC) into an array, update them there, and at
     * last reinsert them all.
     */

    {
	ExtCmdLoc* eclPtr = envPtr->extCmdMapPtr;

	/* A helper structure */

	typedef struct {
	    int pc;
	    int cmd;
	} MAP;

	/*
	 * And the helper array. At most the whole hashtable is placed into
	 * this.
	 */

	MAP *map = (MAP*) ckalloc (sizeof(MAP) * eclPtr->litInfo.numEntries);

	Tcl_HashSearch hSearch;
	Tcl_HashEntry* hPtr;
	int n, k, isnew;

	/*
	 * Phase I: Locate the affected entries, and save them in adjusted
	 * form to the array. This removes them from the hash.
	 */

	for (n = 0, hPtr = Tcl_FirstHashEntry(&eclPtr->litInfo, &hSearch);
	     hPtr != NULL;
	     hPtr = Tcl_NextHashEntry(&hSearch)) {

	    map [n].cmd = PTR2INT(Tcl_GetHashValue(hPtr));
	    map [n].pc  = PTR2INT(Tcl_GetHashKey (&eclPtr->litInfo,hPtr));

	    if (map[n].pc >= (jumpFixupPtr->codeOffset + 2)) {
		Tcl_DeleteHashEntry(hPtr);
		map [n].pc += 3;
		n++;
	    }
	}

	/*
	 * Phase II: Re-insert the modified entries into the hash.
	 */

	for (k=0;k<n;k++) {
	    hPtr = Tcl_CreateHashEntry(&eclPtr->litInfo, INT2PTR(map[k].pc), &isnew);
	    Tcl_SetHashValue(hPtr, INT2PTR(map[k].cmd));
	}

	ckfree (map);
    }

    return 1;			/* the jump was grown */
}

/*
 *----------------------------------------------------------------------
 *
 * TclGetInstructionTable --

				CONST84 char **startPtr,
				CONST84 char **endPtr);
/* 216 */
EXTERN void		Tcl_Release(ClientData clientData);
/* 217 */
EXTERN void		Tcl_ResetResult(Tcl_Interp *interp);
/* 218 */
EXTERN int		Tcl_ScanElement(const char *src, int *flagPtr);
/* 219 */
EXTERN int		Tcl_ScanCountedElement(const char *src, int length,
				int *flagPtr);
/* 220 */
EXTERN int		Tcl_SeekOld(Tcl_Channel chan, int offset, int mode);
/* 221 */
EXTERN int		Tcl_ServiceAll(void);
/* 222 */
EXTERN int		Tcl_ServiceEvent(int flags);

    void (*tcl_RegisterObjType) (const Tcl_ObjType *typePtr); /* 211 */
    Tcl_RegExp (*tcl_RegExpCompile) (Tcl_Interp *interp, const char *pattern); /* 212 */
    int (*tcl_RegExpExec) (Tcl_Interp *interp, Tcl_RegExp regexp, const char *text, const char *start); /* 213 */
    int (*tcl_RegExpMatch) (Tcl_Interp *interp, const char *text, const char *pattern); /* 214 */
    void (*tcl_RegExpRange) (Tcl_RegExp regexp, int index, CONST84 char **startPtr, CONST84 char **endPtr); /* 215 */
    void (*tcl_Release) (ClientData clientData); /* 216 */
    void (*tcl_ResetResult) (Tcl_Interp *interp); /* 217 */
    int (*tcl_ScanElement) (const char *src, int *flagPtr); /* 218 */
    int (*tcl_ScanCountedElement) (const char *src, int length, int *flagPtr); /* 219 */
    int (*tcl_SeekOld) (Tcl_Channel chan, int offset, int mode); /* 220 */
    int (*tcl_ServiceAll) (void); /* 221 */
    int (*tcl_ServiceEvent) (int flags); /* 222 */
    void (*tcl_SetAssocData) (Tcl_Interp *interp, const char *name, Tcl_InterpDeleteProc *proc, ClientData clientData); /* 223 */
    void (*tcl_SetChannelBufferSize) (Tcl_Channel chan, int sz); /* 224 */
    int (*tcl_SetChannelOption) (Tcl_Interp *interp, Tcl_Channel chan, const char *optionName, const char *newValue); /* 225 */
    int (*tcl_SetCommandInfo) (Tcl_Interp *interp, const char *cmdName, const Tcl_CmdInfo *infoPtr); /* 226 */

 */

static void
UpdateStringOfDict(
    Tcl_Obj *dictPtr)
{
#define LOCAL_SIZE 20
    int localFlags[LOCAL_SIZE], *flagPtr = NULL;
    Dict *dict = dictPtr->internalRep.otherValuePtr;
    ChainEntry *cPtr;
    Tcl_Obj *keyPtr, *valuePtr;
    int i, length, bytesNeeded = 0;
    const char *elem;
    char *dst;
    const int maxFlags = UINT_MAX / sizeof(int);

    /*
     * This field is the most useful one in the whole hash structure, and it
     * is not exposed by any API function...
     */

    int numElems = dict->table.numEntries * 2;

    /* Handle empty list case first, simplifies what follows */
    if (numElems == 0) {
	dictPtr->bytes = tclEmptyStringRep;
	dictPtr->length = 0;
	return;
    }

    /*
     * Pass 1: estimate space, gather flags.
     */

    if (numElems <= LOCAL_SIZE) {
	flagPtr = localFlags;
    } else if (numElems > maxFlags) {
	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
    } else {
	flagPtr = ckalloc(numElems * sizeof(int));
    }

    for (i=0,cPtr=dict->entryChainHead; i<numElems; i+=2,cPtr=cPtr->nextPtr) {
	/*
	 * Assume that cPtr is never NULL since we know the number of array
	 * elements already.
	 */

	flagPtr[i] = ( i ? TCL_DONT_QUOTE_HASH : 0 );
	keyPtr = Tcl_GetHashKey(&dict->table, &cPtr->entry);
	elem = TclGetStringFromObj(keyPtr, &length);
	bytesNeeded += TclScanElement(elem, length, flagPtr+i);
	if (bytesNeeded < 0) {
	    Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
	}

	flagPtr[i+1] = TCL_DONT_QUOTE_HASH;
	valuePtr = Tcl_GetHashValue(&cPtr->entry);
	elem = TclGetStringFromObj(valuePtr, &length);
	bytesNeeded += TclScanElement(elem, length, flagPtr+i+1);
	if (bytesNeeded < 0) {
	    Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
	}
    }
    if (bytesNeeded > INT_MAX - numElems + 1) {
	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
    }
    bytesNeeded += numElems;

    /*
     * Pass 2: copy into string rep buffer.
     */

    dictPtr->length = bytesNeeded - 1;
    dictPtr->bytes = ckalloc(bytesNeeded);
    dst = dictPtr->bytes;
    for (i=0,cPtr=dict->entryChainHead; i<numElems; i+=2,cPtr=cPtr->nextPtr) {
	flagPtr[i] |= ( i ? TCL_DONT_QUOTE_HASH : 0 );
	keyPtr = Tcl_GetHashKey(&dict->table, &cPtr->entry);
	elem = TclGetStringFromObj(keyPtr, &length);
	dst += TclConvertElement(elem, length, dst, flagPtr[i]);

	*dst++ = ' ';

	flagPtr[i+1] |= TCL_DONT_QUOTE_HASH;
	valuePtr = Tcl_GetHashValue(&cPtr->entry);
	elem = TclGetStringFromObj(valuePtr, &length);
	dst += TclConvertElement(elem, length, dst, flagPtr[i+1]);

	*dst++ = ' ';
    }
    dictPtr->bytes[dictPtr->length] = '\0';

    if (flagPtr != localFlags) {
	ckfree(flagPtr);
    }






}

/*
 *----------------------------------------------------------------------
 *
 * SetDictFromAny --
 *

 */

static int
SetDictFromAny(
    Tcl_Interp *interp,
    Tcl_Obj *objPtr)
{

    Tcl_HashEntry *hPtr;

    int isNew, result;



    Dict *dict = ckalloc(sizeof(Dict));

    InitChainTable(dict);

    /*
     * 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;


	}


	for (i=0 ; i<objc ; i+=2) {



	




	    /* Store key and value in the hash table we're building. */


	    hPtr = CreateChainEntry(dict, objv[i], &isNew);
	    if (!isNew) {
		Tcl_Obj *discardedValue = Tcl_GetHashValue(hPtr);

		/*
		 * Not really a well-formed dictionary as there are duplicate
		 * keys, so better get the string rep here so that we can
		 * convert back.
		 */

		(void) Tcl_GetString(objPtr);

		TclDecrRefCount(discardedValue);
	    }
	    Tcl_SetHashValue(hPtr, objv[i+1]);
	    Tcl_IncrRefCount(objv[i+1]); /* Since hash now holds ref to it */
	}
    } else {



	int length;







	const char *nextElem = TclGetStringFromObj(objPtr, &length);
	const char *limit = (nextElem + length);



	while (nextElem < limit) {
	    Tcl_Obj *keyPtr, *valuePtr;

	    const char *elemStart;





	    int elemSize, literal;

	    result = TclFindElement(interp, nextElem, (limit - nextElem),
		    &elemStart, &nextElem, &elemSize, &literal);
	    if (result != TCL_OK) {



		goto errorExit;
	    }
	    if (elemStart == limit) {
		break;
	    }
	    if (nextElem == limit) {
		goto missingValue;
	    }






	    if (literal) {
		TclNewStringObj(keyPtr, elemStart, elemSize);

	    } else {


		/* Avoid double copy */
		TclNewObj(keyPtr);
		keyPtr->bytes = ckalloc((unsigned) elemSize + 1);
		keyPtr->length = TclCopyAndCollapse(elemSize, elemStart,
			keyPtr->bytes);




	    }

	    result = TclFindElement(interp, nextElem, (limit - nextElem),
		    &elemStart, &nextElem, &elemSize, &literal);
	    if (result != TCL_OK) {



		TclDecrRefCount(keyPtr);



		goto errorExit;
	    }







	    if (literal) {
		TclNewStringObj(valuePtr, elemStart, elemSize);

	    } else {


		/* Avoid double copy */
		TclNewObj(valuePtr);
		valuePtr->bytes = ckalloc((unsigned) elemSize + 1);
		valuePtr->length = TclCopyAndCollapse(elemSize, elemStart,
			valuePtr->bytes);
	    }

	    /* Store key and value in the hash table we're building. */


	    hPtr = CreateChainEntry(dict, keyPtr, &isNew);
	    if (!isNew) {
		Tcl_Obj *discardedValue = Tcl_GetHashValue(hPtr);

		TclDecrRefCount(keyPtr);
		TclDecrRefCount(discardedValue);
	    }
	    Tcl_SetHashValue(hPtr, valuePtr);
	    Tcl_IncrRefCount(valuePtr); /* since hash now holds ref to it */
	}
    }

    /*
     * Free the old internalRep before setting the new one. We do this as late
     * as possible to allow the conversion code, in particular
     * Tcl_GetStringFromObj, to use that old internalRep.
     */

    TclFreeIntRep(objPtr);
    dict->epoch = 0;
    dict->chain = NULL;
    dict->refcount = 1;
    objPtr->internalRep.otherValuePtr = dict;
    objPtr->typePtr = &tclDictType;
    return TCL_OK;

  missingValue:
    if (interp != NULL) {
	Tcl_SetResult(interp, "missing value to go with key", TCL_STATIC);
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DICTIONARY", NULL);
    }

    result = TCL_ERROR;

  errorExit:
    if (interp != NULL) {
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DICTIONARY", NULL);
    }
    DeleteChainTable(dict);
    ckfree(dict);
    return result;
}

/*
 *----------------------------------------------------------------------

			origObjv[i]->internalRep.otherValuePtr;

		elementStr = ecrPtr->fullSubcmdName;
		elemLen = strlen(elementStr);
	    } else {
		elementStr = TclGetStringFromObj(origObjv[i], &elemLen);
	    }
	    flags = 0;
	    len = TclScanElement(elementStr, elemLen, &flags);

	    if (MAY_QUOTE_WORD && len != elemLen) {
		char *quotedElementStr = TclStackAlloc(interp, (unsigned)len);

		len = TclConvertElement(elementStr, elemLen,
			quotedElementStr, flags);
		Tcl_AppendToObj(objPtr, quotedElementStr, len);
		TclStackFree(interp, quotedElementStr);
	    } else {
		Tcl_AppendToObj(objPtr, elementStr, elemLen);
	    }

	    Tcl_AppendStringsToObj(objPtr, ecrPtr->fullSubcmdName, NULL);
	} else {
	    /*
	     * Quote the argument if it contains spaces (Bug 942757).
	     */

	    elementStr = TclGetStringFromObj(objv[i], &elemLen);
	    flags = 0;
	    len = TclScanElement(elementStr, elemLen, &flags);

	    if (MAY_QUOTE_WORD && len != elemLen) {
		char *quotedElementStr = TclStackAlloc(interp,(unsigned) len);

		len = TclConvertElement(elementStr, elemLen,
			quotedElementStr, flags);
		Tcl_AppendToObj(objPtr, quotedElementStr, len);
		TclStackFree(interp, quotedElementStr);
	    } else {
		Tcl_AppendToObj(objPtr, elementStr, elemLen);
	    }
	}

MODULE_SCOPE ContLineLoc *TclContinuationsEnter(Tcl_Obj *objPtr, int num,
			    int *loc);
MODULE_SCOPE void	TclContinuationsEnterDerived(Tcl_Obj *objPtr,
			    int start, int *clNext);
MODULE_SCOPE ContLineLoc *TclContinuationsGet(Tcl_Obj *objPtr);
MODULE_SCOPE void	TclContinuationsCopy(Tcl_Obj *objPtr,
			    Tcl_Obj *originObjPtr);
MODULE_SCOPE int	TclConvertElement(const char *src, int length,
			    char *dst, int flags);
MODULE_SCOPE void	TclDeleteNamespaceVars(Namespace *nsPtr);
/* TIP #280 - Modified token based evulation, with line information. */
MODULE_SCOPE int	TclEvalEx(Tcl_Interp *interp, const char *script,
			    int numBytes, int flags, int line,
			    int *clNextOuter, const char *outerScript);
MODULE_SCOPE Tcl_ObjCmdProc TclFileAttrsCmd;
MODULE_SCOPE Tcl_ObjCmdProc TclFileCopyCmd;

MODULE_SCOPE Tcl_Obj *	TclLsetList(Tcl_Interp *interp, Tcl_Obj *listPtr,
			    Tcl_Obj *indexPtr, Tcl_Obj *valuePtr);
MODULE_SCOPE Tcl_Obj *	TclLsetFlat(Tcl_Interp *interp, Tcl_Obj *listPtr,
			    int indexCount, Tcl_Obj *const indexArray[],
			    Tcl_Obj *valuePtr);
MODULE_SCOPE Tcl_Command TclMakeEnsemble(Tcl_Interp *interp, const char *name,
			    const EnsembleImplMap map[]);
MODULE_SCOPE int	TclMaxListLength(const char *bytes, int numBytes,
			    const char **endPtr);
MODULE_SCOPE int	TclMergeReturnOptions(Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[], Tcl_Obj **optionsPtrPtr,
			    int *codePtr, int *levelPtr);
MODULE_SCOPE int	TclNokia770Doubles(void);
MODULE_SCOPE void	TclNsDecrRefCount(Namespace *nsPtr);
MODULE_SCOPE void	TclObjVarErrMsg(Tcl_Interp *interp, Tcl_Obj *part1Ptr,
			    Tcl_Obj *part2Ptr, const char *operation,

MODULE_SCOPE void	TclpThreadExit(int status);
MODULE_SCOPE void	TclRememberCondition(Tcl_Condition *mutex);
MODULE_SCOPE void	TclRememberJoinableThread(Tcl_ThreadId id);
MODULE_SCOPE void	TclRememberMutex(Tcl_Mutex *mutex);
MODULE_SCOPE void	TclRemoveScriptLimitCallbacks(Tcl_Interp *interp);
MODULE_SCOPE int	TclReToGlob(Tcl_Interp *interp, const char *reStr,
			    int reStrLen, Tcl_DString *dsPtr, int *flagsPtr);
MODULE_SCOPE int	TclScanElement(const char *string, int length,
			    int *flagPtr);
MODULE_SCOPE void	TclSetBgErrorHandler(Tcl_Interp *interp,
			    Tcl_Obj *cmdPrefix);
MODULE_SCOPE void	TclSetBignumIntRep(Tcl_Obj *objPtr,
			    mp_int *bignumValue);
MODULE_SCOPE void	TclSetCmdNameObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
			    Command *cmdPtr);
MODULE_SCOPE void	TclSetDuplicateObj(Tcl_Obj *dupPtr, Tcl_Obj *objPtr);

	    (objPtr)->internalRep.otherValuePtr = cachePtr->firstObjPtr; \
	    cachePtr->firstObjPtr = objPtr;				\
	    ++cachePtr->numObjects;					\
	}								\
    } while (0)

#else /* not PURIFY or USE_THREAD_ALLOC */

#if defined(USE_TCLALLOC) && USE_TCLALLOC
    MODULE_SCOPE void TclFinalizeAllocSubsystem();
    MODULE_SCOPE void TclInitAlloc();
#else
#   define USE_TCLALLOC 0
#endif

#ifdef TCL_THREADS
/* declared in tclObj.c */
MODULE_SCOPE Tcl_Mutex	tclObjMutex;
#endif

#  define TclAllocObjStorageEx(interp, objPtr) \

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

static List *
AttemptNewList(
    Tcl_Interp *interp,
    int objc,
    Tcl_Obj *const objv[])
{
    List *listRepPtr = NewListIntRep(objc, objv, 0);

    if (interp != NULL && listRepPtr == NULL) {
	if (objc > LIST_MAX) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "max length of a Tcl list (%d elements) exceeded",

				 * referenced by objv. */
    Tcl_Obj ***objvPtr)		/* Where to store the pointer to an array of
				 * pointers to the list's objects. */
{
    register List *listRepPtr;

    if (listPtr->typePtr != &tclListType) {
	int result;





	if (listPtr->bytes == tclEmptyStringRep) {






	    *objcPtr = 0;
	    *objvPtr = NULL;
	    return TCL_OK;
	}

	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}
    }
    listRepPtr = ListRepPtr(listPtr);
    *objcPtr = listRepPtr->elemCount;

    register Tcl_Obj **elemPtrs;
    int numElems, numRequired, newMax, newSize, i;

    if (Tcl_IsShared(listPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_ListObjAppendElement");
    }
    if (listPtr->typePtr != &tclListType) {
	int result;

	if (listPtr->bytes == tclEmptyStringRep) {

	    Tcl_SetListObj(listPtr, 1, &objPtr);
	    return TCL_OK;
	}

	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}
    }

    listRepPtr = ListRepPtr(listPtr);

    register Tcl_Obj *listPtr,	/* List object to index into. */
    register int index,		/* Index of element to return. */
    Tcl_Obj **objPtrPtr)	/* The resulting Tcl_Obj* is stored here. */
{
    register List *listRepPtr;

    if (listPtr->typePtr != &tclListType) {
	int result;

	if (listPtr->bytes == tclEmptyStringRep) {

	    *objPtrPtr = NULL;
	    return TCL_OK;
	}

	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}
    }

    listRepPtr = ListRepPtr(listPtr);

    Tcl_Interp *interp,		/* Used to report errors if not NULL. */
    register Tcl_Obj *listPtr,	/* List object whose #elements to return. */
    register int *intPtr)	/* The resulting int is stored here. */
{
    register List *listRepPtr;

    if (listPtr->typePtr != &tclListType) {
	int result;

	if (listPtr->bytes == tclEmptyStringRep) {

	    *intPtr = 0;
	    return TCL_OK;
	}

	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}
    }

    listRepPtr = ListRepPtr(listPtr);

    register Tcl_Obj **elemPtrs;
    int numElems, numRequired, numAfterLast, start, i, j, isShared;

    if (Tcl_IsShared(listPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_ListObjReplace");
    }
    if (listPtr->typePtr != &tclListType) {

	if (listPtr->bytes == tclEmptyStringRep) {


	    if (objc) {
		Tcl_SetListObj(listPtr, objc, NULL);
	    } else {
		return TCL_OK;
	    }
	} else {
	    int result = SetListFromAny(interp, listPtr);

	    indexArray++;
	    break;
	}
	indexArray++;

	if (index < 0 || index > elemCount) {
	    /* ...the index points outside the sublist. */
	    if (interp != NULL) {
		Tcl_SetObjResult(interp,
			Tcl_NewStringObj("list index out of range", -1));
	    }
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSET", "BADINDEX",
		    NULL);
	    break;
	}

	/*
	 * No error conditions.  As long as we're not yet on the last index,

     * Ensure that the listPtr parameter designates an unshared list.
     */

    if (Tcl_IsShared(listPtr)) {
	Tcl_Panic("%s called with shared object", "TclListObjSetElement");
    }
    if (listPtr->typePtr != &tclListType) {
	int result;

	if (listPtr->bytes == tclEmptyStringRep) {
	    if (interp != NULL) {
		Tcl_SetObjResult(interp,
			Tcl_NewStringObj("list index out of range", -1));
	    }
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSET", "BADINDEX",
		    NULL);
	    return TCL_ERROR;
	}
	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;

 */

static int
SetListFromAny(
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    Tcl_Obj *objPtr)		/* The object to convert. */
{








    List *listRepPtr;
    Tcl_Obj **elemPtrs;

    /*
     * 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).

	/*
	 * Populate the list representation.
	 */

	elemPtrs = &listRepPtr->elements;
	Tcl_DictObjFirst(NULL, objPtr, &search, &keyPtr, &valuePtr, &done);

	while (!done) {
	    *elemPtrs++ = keyPtr;
	    *elemPtrs++ = valuePtr;
	    Tcl_IncrRefCount(keyPtr);
	    Tcl_IncrRefCount(valuePtr);
	    Tcl_DictObjNext(&search, &keyPtr, &valuePtr, &done);
	}
    } else {



	int estCount, length;







	const char *limit, *nextElem = TclGetStringFromObj(objPtr, &length);

	/*



	 * Allocate enough space to hold a (Tcl_Obj *) for each
	 * (possible) list element.
	 */

	estCount = TclMaxListLength(nextElem, length, &limit);
	estCount += (estCount == 0); /* Smallest List struct holds 1 element. */
	listRepPtr = AttemptNewList(interp, estCount, NULL);
	if (listRepPtr == NULL) {
	    return TCL_ERROR;
	}
	elemPtrs = &listRepPtr->elements;

	/* Each iteration, parse and store a list element */


	while (nextElem < limit) {
	    const char *elemStart;
	    int elemSize, literal;

	    if (TCL_OK != TclFindElement(interp, nextElem, (limit - nextElem),
		    &elemStart, &nextElem, &elemSize, &literal)) {


		while (--elemPtrs >= &listRepPtr->elements) {
		    Tcl_DecrRefCount(*elemPtrs);
		}
		ckfree((char *) listRepPtr);



		return TCL_ERROR;
	    }
	    if (elemStart == limit) {
		break;
	    }



	    /* TODO: replace panic with error on alloc failure? */






	    if (literal) {
		TclNewStringObj(*elemPtrs, elemStart, elemSize);

	    } else {
		TclNewObj(*elemPtrs);
		(*elemPtrs)->bytes = ckalloc((unsigned) elemSize + 1);
		(*elemPtrs)->length = TclCopyAndCollapse(elemSize, elemStart,
			(*elemPtrs)->bytes);
	    }





	    Tcl_IncrRefCount(*elemPtrs++);/* Since list now holds ref to it. */
	}

 	listRepPtr->elemCount = elemPtrs - &listRepPtr->elements;
    }

    /*
     * Free the old internalRep before setting the new one. We do this as late
     * as possible to allow the conversion code, in particular
     * Tcl_GetStringFromObj, to use that old internalRep.
     */


    TclFreeIntRep(objPtr);
    ListSetIntRep(objPtr, listRepPtr);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------

 */

static void
UpdateStringOfList(
    Tcl_Obj *listPtr)		/* List object with string rep to update. */
{
#   define LOCAL_SIZE 20
    int localFlags[LOCAL_SIZE], *flagPtr = NULL;
    List *listRepPtr = ListRepPtr(listPtr);
    int numElems = listRepPtr->elemCount;
    int i, length, bytesNeeded = 0;
    const char *elem;
    char *dst;

    Tcl_Obj **elemPtrs;

    /*
     * Mark the list as being canonical; although it will now have a string
     * rep, it is one we derived through proper "canonical" quoting and so
     * it's known to be free from nasties relating to [concat] and [eval].
     */

    listRepPtr->canonicalFlag = 1;

    /* Handle empty list case first, so rest of the routine is simpler */

    if (numElems == 0) {
	listPtr->bytes = tclEmptyStringRep;
	listPtr->length = 0;
	return;
    }

    /*
     * Pass 1: estimate space, gather flags.
     */

    if (numElems <= LOCAL_SIZE) {
	flagPtr = localFlags;
    } else {
	/* We know numElems <= LIST_MAX, so this is safe. */
	flagPtr = ckalloc(numElems * sizeof(int));
    }

    elemPtrs = &listRepPtr->elements;
    for (i = 0; i < numElems; i++) {
	flagPtr[i] = ( i ? TCL_DONT_QUOTE_HASH : 0 );
	elem = TclGetStringFromObj(elemPtrs[i], &length);
	bytesNeeded += TclScanElement(elem, length, flagPtr+i);
	if (bytesNeeded < 0) {

	    Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);

	}


    }
    if (bytesNeeded > INT_MAX - numElems + 1) {
	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
    }
    bytesNeeded += numElems;

    /*
     * Pass 2: copy into string rep buffer.
     */

    listPtr->length = bytesNeeded - 1;
    listPtr->bytes = ckalloc(bytesNeeded);
    dst = listPtr->bytes;
    for (i = 0; i < numElems; i++) {
	flagPtr[i] |= ( i ? TCL_DONT_QUOTE_HASH : 0 );
	elem = TclGetStringFromObj(elemPtrs[i], &length);
	dst += TclConvertElement(elem, length, dst, flagPtr[i]);

	*dst++ = ' ';

    }
    listPtr->bytes[listPtr->length] = '\0';

    if (flagPtr != localFlags) {
	ckfree(flagPtr);
    }















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

	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LOAD", "ENTRYPOINT",
		    NULL);
	    code = TCL_ERROR;
	    goto done;
	}
	code = pkgPtr->initProc(target);
    }

    /*
     * Test for whether the initialization failed. If so, transfer the error
     * from the target interpreter to the originating one.
     */

    if (code != TCL_OK) {
	Tcl_TransferResult(target, code, interp);
	goto done;
    }

    /*
     * Record the fact that the package has been loaded in the target
     * interpreter.
     *
     * Update the proper reference count.
     */

    Tcl_MutexLock(&packageMutex);
    if (Tcl_IsSafe(target)) {
	pkgPtr->safeInterpRefCount++;
    } else {
	pkgPtr->interpRefCount++;
    }
    Tcl_MutexUnlock(&packageMutex);

    /*
     * Refetch ipFirstPtr: loading the package may have introduced additional
     * static packages at the head of the linked list!
     */

    ipFirstPtr = Tcl_GetAssocData(target, "tclLoad", NULL);
    ipPtr = ckalloc(sizeof(InterpPackage));
    ipPtr->pkgPtr = pkgPtr;
    ipPtr->nextPtr = ipFirstPtr;
    Tcl_SetAssocData(target, "tclLoad", LoadCleanupProc, ipPtr);




  done:
    Tcl_DStringFree(&pkgName);
    Tcl_DStringFree(&initName);
    Tcl_DStringFree(&safeInitName);
    Tcl_DStringFree(&unloadName);
    Tcl_DStringFree(&safeUnloadName);

    Tcl_Interp *interp,		/* Interpreter in which to return information
				 * or error message. */
    const char *targetName)	/* Name of target interpreter or NULL. If
				 * NULL, return info about all interps;
				 * otherwise, just return info about this
				 * interpreter. */
{

    Tcl_Interp *target;
    LoadedPackage *pkgPtr;
    InterpPackage *ipPtr;
    Tcl_Obj *resultObj, *pkgDesc[2];

    if (targetName == NULL) {
	/*
	 * Return information about all of the available packages.
	 */

	resultObj = Tcl_NewObj();
	Tcl_MutexLock(&packageMutex);
	for (pkgPtr = firstPackagePtr; pkgPtr != NULL;
		pkgPtr = pkgPtr->nextPtr) {

	    pkgDesc[0] = Tcl_NewStringObj(pkgPtr->fileName, -1);
	    pkgDesc[1] = Tcl_NewStringObj(pkgPtr->packageName, -1);
	    Tcl_ListObjAppendElement(NULL, resultObj,

		    Tcl_NewListObj(2, pkgDesc));
	}
	Tcl_MutexUnlock(&packageMutex);
	Tcl_SetObjResult(interp, resultObj);
	return TCL_OK;
    }

    /*
     * Return information about only the packages that are loaded in a given
     * interpreter.
     */

    target = Tcl_GetSlave(interp, targetName);
    if (target == NULL) {
	return TCL_ERROR;
    }
    ipPtr = Tcl_GetAssocData(target, "tclLoad", NULL);
    resultObj = Tcl_NewObj();
    for (; ipPtr != NULL; ipPtr = ipPtr->nextPtr) {
	pkgPtr = ipPtr->pkgPtr;

	pkgDesc[0] = Tcl_NewStringObj(pkgPtr->fileName, -1);
	pkgDesc[1] = Tcl_NewStringObj(pkgPtr->packageName, -1);
	Tcl_ListObjAppendElement(NULL, resultObj, Tcl_NewListObj(2, pkgDesc));

    }
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * LoadCleanupProc --

    }

    /*
     * If no path is given, return the current path.
     */

    if (objc == 1) {
        Tcl_Obj *resultObj = Tcl_NewObj();



	for (i=0 ; i<nsPtr->commandPathLength ; i++) {
	    if (nsPtr->commandPathArray[i].nsPtr != NULL) {
                Tcl_ListObjAppendElement(NULL, resultObj, Tcl_NewStringObj(
                        nsPtr->commandPathArray[i].nsPtr->fullName, -1));
	    }
	}
        Tcl_SetObjResult(interp, resultObj);
	return TCL_OK;
    }

    /*
     * There is a path given, so parse it into an array of namespace pointers.
     */

    Tcl_Interp *interp,		/* Interpreter in which to log information. */
    const char *script,		/* First character in script containing
				 * command (must be <= command). */
    const char *command,	/* First character in command that generated
				 * the error. */
    int length,			/* Number of bytes in command (-1 means use
				 * all bytes up to first null byte). */
    const unsigned char *pc,    /* Current pc of bytecode execution context */
    Tcl_Obj **tosPtr)           /* Current stack of bytecode execution
                                 * context */
{
    register const char *p;
    Interp *iPtr = (Interp *) interp;
    int overflow, limit = 150;
    Var *varPtr, *arrayPtr;

    if (iPtr->flags & ERR_ALREADY_LOGGED) {

        iPtr->errorStack = newObj;
    }
    if (iPtr->resetErrorStack) {
	int len;

        iPtr->resetErrorStack = 0;
	Tcl_ListObjLength(interp, iPtr->errorStack, &len);

        /*
         * Reset while keeping the list intrep as much as possible.
         */

        Tcl_ListObjReplace(interp, iPtr->errorStack, 0, len, 0, NULL);
        if (pc != NULL) {
            Tcl_Obj *innerContext;

            innerContext = TclGetInnerContext(interp, pc, tosPtr);
            if (innerContext != NULL) {
                Tcl_ListObjAppendElement(NULL, iPtr->errorStack,
                        iPtr->innerLiteral);
                Tcl_ListObjAppendElement(NULL, iPtr->errorStack, innerContext);
            }
        } else if (command != NULL) {
            Tcl_ListObjAppendElement(NULL, iPtr->errorStack,
                    iPtr->innerLiteral);
            Tcl_ListObjAppendElement(NULL, iPtr->errorStack,
                    Tcl_NewStringObj(command, length));
        }
    } 

    if (!iPtr->framePtr->objc) {
        /*
         * Special frame, nothing to report.
         */
    } else if (iPtr->varFramePtr != iPtr->framePtr) {
        /*
         * uplevel case, [lappend errorstack UP $relativelevel]
         */

        Tcl_ListObjAppendElement(NULL, iPtr->errorStack, iPtr->upLiteral);
        Tcl_ListObjAppendElement(NULL, iPtr->errorStack, Tcl_NewIntObj(
		iPtr->framePtr->level - iPtr->varFramePtr->level));
    } else if (iPtr->framePtr != iPtr->rootFramePtr) {
        /*
         * normal case, [lappend errorstack CALL [info level 0]]
         */

        Tcl_ListObjAppendElement(NULL, iPtr->errorStack, iPtr->callLiteral);
        Tcl_ListObjAppendElement(NULL, iPtr->errorStack, Tcl_NewListObj(
		iPtr->framePtr->objc, iPtr->framePtr->objv));
    }
}

/*

 *
 * Side effects:
 *	Reset errorstack if it needs be, and in that case remember the
 *	passed-in error message as inner context.
 *
 *----------------------------------------------------------------------
 */

void
TclErrorStackResetIf(
    Tcl_Interp *interp,
    const char *msg,
    int length)
{
    Interp *iPtr = (Interp *) interp;

    if (Tcl_IsShared(iPtr->errorStack)) {
        Tcl_Obj *newObj;
            
        newObj = Tcl_DuplicateObj(iPtr->errorStack);
        Tcl_DecrRefCount(iPtr->errorStack);
        Tcl_IncrRefCount(newObj);
        iPtr->errorStack = newObj;
    }
    if (iPtr->resetErrorStack) {
	int len;

        iPtr->resetErrorStack = 0;
	Tcl_ListObjLength(interp, iPtr->errorStack, &len);

        /*
         * Reset while keeping the list intrep as much as possible.
         */

        Tcl_ListObjReplace(interp, iPtr->errorStack, 0, len, 0, NULL);
        Tcl_ListObjAppendElement(NULL, iPtr->errorStack, iPtr->innerLiteral);
        Tcl_ListObjAppendElement(NULL, iPtr->errorStack,
                Tcl_NewStringObj(msg, length));
    } 
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_LogCommandInfo --

		    parsePtr->numTokens = wordIndex;
		} else {
		    /*
		     * Recalculate the number of Tcl_Tokens needed to store
		     * tokens representing the expanded list.
		     */

		    const char *listStart;
		    int growthNeeded = wordIndex + 2*elemCount
			    - parsePtr->numTokens;

		    parsePtr->numWords += elemCount - 1;
		    if (growthNeeded > 0) {
			TclGrowParseTokenArray(parsePtr, growthNeeded);
			tokenPtr = &parsePtr->tokenPtr[wordIndex];

	DupBlock(availPtr->script, argv4, (unsigned) length + 1);
	break;
    }
    case PKG_NAMES:
	if (objc != 2) {
	    Tcl_WrongNumArgs(interp, 2, objv, NULL);
	    return TCL_ERROR;
	} else {
	    Tcl_Obj *resultObj;

	    resultObj = Tcl_NewObj();
	    tablePtr = &iPtr->packageTable;
	    for (hPtr = Tcl_FirstHashEntry(tablePtr, &search); hPtr != NULL;
		    hPtr = Tcl_NextHashEntry(&search)) {
		pkgPtr = Tcl_GetHashValue(hPtr);
		if ((pkgPtr->version != NULL) || (pkgPtr->availPtr != NULL)) {
		    Tcl_ListObjAppendElement(NULL,resultObj, Tcl_NewStringObj(
			    Tcl_GetHashKey(tablePtr, hPtr), -1));
		}
	    }
	    Tcl_SetObjResult(interp, resultObj);
	}
	break;
    case PKG_PRESENT: {
	const char *name;

	if (objc < 3) {
	    goto require;
	}
	argv2 = TclGetString(objv[2]);
	if ((argv2[0] == '-') && (strcmp(argv2, "-exact") == 0)) {
	    if (objc != 5) {
		goto requireSyntax;

	ckfree(iva);
	ckfree(ivb);
	break;
    case PKG_VERSIONS:
	if (objc != 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "package");
	    return TCL_ERROR;
	} else {
	    Tcl_Obj *resultObj = Tcl_NewObj();

	    argv2 = TclGetString(objv[2]);
	    hPtr = Tcl_FindHashEntry(&iPtr->packageTable, argv2);
	    if (hPtr != NULL) {
		pkgPtr = Tcl_GetHashValue(hPtr);
		for (availPtr = pkgPtr->availPtr; availPtr != NULL;
			availPtr = availPtr->nextPtr) {
		    Tcl_ListObjAppendElement(NULL, resultObj,
			    Tcl_NewStringObj(availPtr->version, -1));
		}
	    }
	    Tcl_SetObjResult(interp, resultObj);
	}
	break;
    case PKG_VSATISFIES: {
	char *argv2i = NULL;

	if (objc < 4) {
	    Tcl_WrongNumArgs(interp, 2, objv, "version ?requirement ...?");

	    return TCL_ERROR;
	}

	argv2 = TclGetString(objv[2]);
	if (CheckVersionAndConvert(interp, argv2, &argv2i, NULL) != TCL_OK) {
	    return TCL_ERROR;
	} else if (CheckAllRequirements(interp, objc-3, objv+3) != TCL_OK) {

{
    Tcl_WideInt ms = 0;		/* Number of milliseconds to wait */
    Tcl_Time wakeup;
    AfterInfo *afterPtr;
    AfterAssocData *assocPtr;
    int length;
    int index;

    static const char *const afterSubCmds[] = {
	"cancel", "idle", "info", NULL
    };
    enum afterSubCmds {AFTER_CANCEL, AFTER_IDLE, AFTER_INFO};
    ThreadSpecificData *tsdPtr = InitTimer();

    if (objc < 2) {

	afterPtr->nextPtr = assocPtr->firstAfterPtr;
	assocPtr->firstAfterPtr = afterPtr;
	Tcl_DoWhenIdle(AfterProc, afterPtr);
	Tcl_SetObjResult(interp, Tcl_ObjPrintf("after#%d", afterPtr->id));
	break;
    case AFTER_INFO:
	if (objc == 2) {
            Tcl_Obj *resultObj = Tcl_NewObj();

	    for (afterPtr = assocPtr->firstAfterPtr; afterPtr != NULL;
		    afterPtr = afterPtr->nextPtr) {
		if (assocPtr->interp == interp) {
                    Tcl_ListObjAppendElement(NULL, resultObj, Tcl_ObjPrintf(
                            "after#%d", afterPtr->id));

		}
	    }
            Tcl_SetObjResult(interp, resultObj);
	    return TCL_OK;
	}
	if (objc != 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "?id?");
	    return TCL_ERROR;
	}
	afterPtr = GetAfterEvent(assocPtr, objv[2]);

 */

static ProcessGlobalValue executableName = {
    0, 0, NULL, NULL, NULL, NULL, NULL
};

/*
 * The following values are used in the flags arguments of Tcl*Scan*Element and
 * Tcl*Convert*Element. The values TCL_DONT_USE_BRACES and TCL_DONT_QUOTE_HASH
 * are defined in tcl.h, like so:

 *
#define TCL_DONT_USE_BRACES     1
#define TCL_DONT_QUOTE_HASH     8
 *
 * Those are public flag bits which callers of the public routines
 * Tcl_Convert*Element() can use to indicate:
 *
 * TCL_DONT_USE_BRACES -	1 means the caller is insisting that brace



 *				quoting not be used when converting the list




 *				element.
 * TCL_DONT_QUOTE_HASH -	1 means the caller insists that a leading hash
 *				character ('#') should *not* be quoted. This
 *				is appropriate when the caller can guarantee
 *				the element is not the first element of a
 *				list, so [eval] cannot mis-parse the element
 *				as a comment.
 *
 * The remaining values which can be carried by the flags of these routines
 * are for internal use only.  Make sure they do not overlap with the public
 * values above.
 *
 * The Tcl*Scan*Element() routines make a determination which of 4 modes of
 * conversion is most appropriate for Tcl*Convert*Element() to perform, and
 * sets two bits of the flags value to indicate the mode selected.
 *
 * CONVERT_NONE		The element needs no quoting.  Its literal string
 *			is suitable as is.
 * CONVERT_BRACE	The conversion should be enclosing the literal string
 *			in braces.
 * CONVERT_ESCAPE	The conversion should be using backslashes to escape
 *			any characters in the string that require it.
 * CONVERT_MASK		A mask value used to extract the conversion mode from
 *			the flags argument.
 *			Also indicates a strange conversion mode where all
 *			special characters are escaped with backslashes 
 *			*except for braces*.  This is a strange and unnecessary
 *			case, but it's part of the historical way in which
 *			lists have been formatted in Tcl.  To experiment with
 *			removing this case, set the value of COMPAT to 0.
 *
 * One last flag value is used only by callers of TclScanElement().  The flag
 * value produced by a call to Tcl*Scan*Element() will never leave this bit
 * set.
 *
 * CONVERT_ANY		The caller of TclScanElement() declares it can make
 *			no promise about what public flags will be passed to
 *			the matching call of TclConvertElement().  As such,
 *			TclScanElement() has to determine the worst case
 *			destination buffer length over all possibilities, and
 *			in other cases this means an overestimate of the
 *			required size.
 *
 * For more details, see the comments on the Tcl*Scan*Element and 
 * Tcl*Convert*Element routines.
 */

#define COMPAT 1
#define CONVERT_NONE	0
#define CONVERT_BRACE	2
#define CONVERT_ESCAPE	4
#define CONVERT_MASK	(CONVERT_BRACE | CONVERT_ESCAPE)
#define CONVERT_ANY	16

/*
 * The following key is used by Tcl_PrintDouble and TclPrecTraceProc to
 * access the precision to be used for double formatting.
 */

static Tcl_ThreadDataKey precisionKey;

    "end-offset",			/* name */
    NULL,				/* freeIntRepProc */
    NULL,				/* dupIntRepProc */
    UpdateStringOfEndOffset,		/* updateStringProc */
    SetEndOffsetFromAny
};

/*
 *	*	STRING REPRESENTATION OF LISTS	*	*	*
 *
 * The next several routines implement the conversions of strings to and
 * from Tcl lists.  To understand their operation, the rules of parsing
 * and generating the string representation of lists must be known.  Here
 * we describe them in one place.
 *
 * A list is made up of zero or more elements.  Any string is a list if
 * it is made up of alternating substrings of element-separating ASCII
 * whitespace and properly formatted elements.
 *
 * The ASCII characters which can make up the whitespace between list
 * elements are:
 *
 *	\u0009	\t	TAB
 *	\u000A	\n	NEWLINE
 *	\u000B	\v	VERTICAL TAB
 *	\u000C	\f	FORM FEED
 * 	\u000D	\r	CARRIAGE RETURN
 *	\u0020		SPACE
 *
 * NOTE: differences between this and other places where Tcl defines a role
 * for "whitespace".
 *
 *	* Unlike command parsing, here NEWLINE is just another whitespace
 *	  character; its role as a command terminator in a script has no
 *	  importance here.
 *
 *	* Unlike command parsing, the BACKSLASH NEWLINE sequence is not
 *	  considered to be a whitespace character.
 *
 *	* Other Unicode whitespace characters (recognized by
 *	  [string is space] or Tcl_UniCharIsSpace()) do not play any role
 *	  as element separators in Tcl lists.
 *
 *	* The NUL byte ought not appear, as it is not in strings properly
 *	  encoded for Tcl, but if it is present, it is not treated as
 *	  separating whitespace, or a string terminator.  It is just
 *	  another character in a list element.
 *
 * The interpretaton of a formatted substring as a list element follows
 * rules similar to the parsing of the words of a command in a Tcl script.
 * Backslash substitution plays a key role, and is defined exactly as it is
 * in command parsing.  The same routine, TclParseBackslash() is used in both
 * command parsing and list parsing.  
 *
 * NOTE:  This means that if and when backslash substitution rules ever
 * change for command parsing, the interpretation of strings as lists also
 * changes.
 * 
 * Backslash substitution replaces an "escape sequence" of one or more
 * characters starting with
 *		\u005c	\	BACKSLASH
 * with a single character.  The one character escape sequent case happens
 * only when BACKSLASH is the last character in the string.  In all other
 * cases, the escape sequence is at least two characters long.
 *
 * The formatted substrings are interpreted as element values according to
 * the following cases:
 *
 * * If the first character of a formatted substring is
 *		\u007b	{	OPEN BRACE
 *   then the end of the substring is the matching 
 *		\u007d	}	CLOSE BRACE
 *   character, where matching is determined by counting nesting levels,
 *   and not including any brace characters that are contained within a
 *   backslash escape sequence in the nesting count.  Having found the
 *   matching brace, all characters between the braces are the string
 *   value of the element.  If no matching close brace is found before the
 *   end of the string, the string is not a Tcl list.  If the character
 *   following the close brace is not an element separating whitespace
 *   character, or the end of the string, then the string is not a Tcl list.
 *
 *   NOTE: this differs from a brace-quoted word in the parsing of a
 *   Tcl command only in its treatment of the backslash-newline sequence.
 *   In a list element, the literal characters in the backslash-newline
 *   sequence become part of the element value.  In a script word,
 *   conversion to a single SPACE character is done.
 *
 *   NOTE: Most list element values can be represented by a formatted
 *   substring using brace quoting.  The exceptions are any element value
 *   that includes an unbalanced brace not in a backslash escape sequence,
 *   and any value that ends with a backslash not itself in a backslash
 *   escape sequence.
 * 
 * * If the first character of a formatted substring is
 *		\u0022	"	QUOTE
 *   then the end of the substring is the next QUOTE character, not counting
 *   any QUOTE characters that are contained within a backslash escape
 *   sequence.  If no next QUOTE is found before the end of the string, the
 *   string is not a Tcl list.  If the character following the closing QUOTE
 *   is not an element separating whitespace character, or the end of the
 *   string, then the string is not a Tcl list.  Having found the limits
 *   of the substring, the element value is produced by performing backslash
 *   substitution on the character sequence between the open and close QUOTEs.
 *
 *   NOTE: Any element value can be represented by this style of formatting,
 *   given suitable choice of backslash escape sequences.
 *
 * * All other formatted substrings are terminated by the next element
 *   separating whitespace character in the string.  Having found the limits
 *   of the substring, the element value is produced by performing backslash
 *   substitution on it.
 *
 *   NOTE:  Any element value can be represented by this style of formatting,
 *   given suitable choice of backslash escape sequences, with one exception.
 *   The empty string cannot be represented as a list element without the use
 *   of either braces or quotes to delimit it.
 *
 * This collection of parsing rules is implemented in the routine
 * TclFindElement().
 *
 * In order to produce lists that can be parsed by these rules, we need
 * the ability to distinguish between characters that are part of a list
 * element value from characters providing syntax that define the structure
 * of the list.  This means that our code that generates lists must at a
 * minimum be able to produce escape sequences for the 10 characters
 * identified above that have significance to a list parser.
 *
 *	*	*	CANONICAL LISTS	*	*	*	*	*	
 *
 * In addition to the basic rules for parsing strings into Tcl lists, there
 * are additional properties to be met by the set of list values that are
 * generated by Tcl.  Such list values are often said to be in "canonical
 * form":
 *
 * * When any canonical list is evaluated as a Tcl script, it is a script
 *   of either zero commands (an empty list) or exactly one command.  The
 *   command word is exactly the first element of the list, and each argument
 *   word is exactly one of the following elements of the list.  This means
 *   that any characters that have special meaning during script evaluation
 *   need special treatment when canonical lists are produced:
 *
 *	* Whitespace between elements may not include NEWLINE.
 *	* The command terminating character,
 *		\u003b	;	SEMICOLON
 *	  must be BRACEd, QUOTEd, or escaped so that it does not terminate
 * 	  the command prematurely.
 *	* Any of the characters that begin substitutions in scripts,
 *		\u0024	$	DOLLAR
 *		\u005b	[	OPEN BRACKET
 *		\u005c	\	BACKSLASH
 *	  need to be BRACEd or escaped.
 *	* In any list where the first character of the first element is
 *		\u0023	#	HASH
 *	  that HASH character must be BRACEd, QUOTEd, or escaped so that it
 *	  does not convert the command into a comment.
 *	* Any list element that contains the character sequence
 *	  BACKSLASH NEWLINE cannot be formatted with BRACEs.  The
 *	  BACKSLASH character must be represented by an escape
 *	  sequence, and unless QUOTEs are used, the NEWLINE must
 *	  be as well.
 *
 * * It is also guaranteed that one can use a canonical list as a building
 *   block of a larger script within command substitution, as in this example:
 *	set script "puts \[[list $cmd $arg]]"; eval $script
 *   To support this usage, any appearance of the character
 *		\u005d	]	CLOSE BRACKET
 *   in a list element must be BRACEd, QUOTEd, or escaped.
 *
 * * Finally it is guaranteed that enclosing a canonical list in braces
 *   produces a new value that is also a canonical list.  This new list has
 *   length 1, and its only element is the original canonical list.  This
 *   same guarantee also makes it possible to construct scripts where an
 *   argument word is given a list value by enclosing the canonical form
 *   of that list in braces:
 *	set script "puts {[list $one $two $three]}"; eval $script
 *   This sort of coding was once fairly common, though it's become more
 *   idiomatic to see the following instead:
 *	set script [list puts [list $one $two $three]]; eval $script
 *   In order to support this guarantee, every canonical list must have 
 *   balance when counting those braces that are not in escape sequences.
 *
 * Within these constraints, the canonical list generation routines
 * TclScanElement() and TclConvertElement() attempt to generate the string
 * for any list that is easiest to read.  When an element value is itself
 * acceptable as the formatted substring, it is usually used (CONVERT_NONE).
 * When some quoting or escaping is required, use of BRACEs (CONVERT_BRACE)
 * is usually preferred over the use of escape sequences (CONVERT_ESCAPE).
 * There are some exceptions to both of these preferences for reasons of
 * code simplicity, efficiency, and continuation of historical habits.
 * Canonical lists never use the QUOTE formatting to delimit their elements
 * because that form of quoting does not nest, which makes construction of
 * nested lists far too much trouble.  Canonical lists always use only a
 * single SPACE character for element-separating whitespace.
 *
 *	*	*	FUTURE CONSIDERATIONS	*	*	*
 *
 * When a list element requires quoting or escaping due to a CLOSE BRACKET
 * character or an internal QUOTE character, a strange formatting mode is
 * recommended.  For example, if the value "a{b]c}d" is converted by the
 * usual modes:
 *
 *	CONVERT_BRACE:	a{b]c}d		=> {a{b]c}d}
 *	CONVERT_ESCAPE:	a{b]c}d		=> a\{b\]c\}d
 *
 * we get perfectly usable formatted list elements.  However, this is not
 * what Tcl releases have been producing.  Instead, we have:
 *
 *	CONVERT_MASK:	a{b]c}d		=> a{b\]c}d
 *
 * where the CLOSE BRACKET is escaped, but the BRACEs are not.  The same
 * effect can be seen replacing ] with " in this example.  There does not
 * appear to be any functional or aesthetic purpose for this strange
 * additional mode.  The sole purpose I can see for preserving it is to
 * keep generating the same formatted lists programmers have become accustomed
 * to, and perhaps written tests to expect.  That is, compatibility only.
 * The additional code complexity required to support this mode is significant.
 * The lines of code supporting it are delimited in the routines below with
 * #if COMPAT directives.  This makes it easy to experiment with eliminating
 * this formatting mode simply with "#define COMPAT 0" above.  I believe
 * this is worth considering.
 * 
 * Another consideration is the treatment of QUOTE characters in list elements.
 * TclConvertElement() must have the ability to produce the escape sequence
 * \" so that when a list element begins with a QUOTE we do not confuse
 * that first character with a QUOTE used as list syntax to define list
 * structure.  However, that is the only place where QUOTE characters need
 * quoting.  In this way, handling QUOTE could really be much more like
 * the way we handle HASH which also needs quoting and escaping only in
 * particular situations.  Following up this could increase the set of
 * list elements that can use the CONVERT_NONE formatting mode.
 *
 * More speculative is that the demands of canonical list form require brace
 * balance for the list as a whole, while the current implementation achieves
 * this by establishing brace balance for every element.
 *
 * Finally, a reminder that the rules for parsing and formatting lists are
 * closely tied together with the rules for parsing and evaluating scripts,
 * and will need to evolve in sync.
 */

/*
 *----------------------------------------------------------------------
 *
 * TclMaxListLength --
 *
 *	Given 'bytes' pointing to 'numBytes' bytes, scan through them and
 *	count the number of whitespace runs that could be list element

 *	None.
 *
 *----------------------------------------------------------------------
 */

int
TclMaxListLength(
    const char *bytes,
    int numBytes,
    const char **endPtr)
{
    int count = 0;

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

 *
 *	If TCL_OK is returned, then *elementPtr will be set to point to the
 *	first element of list, and *nextPtr will be set to point to the
 *	character just after any white space following the last character
 *	that's part of the element. If this is the last argument in the list,
 *	then *nextPtr will point just after the last character in the list
 *	(i.e., at the character at list+listLength). If sizePtr is non-NULL,
 *	*sizePtr is filled in with the number of bytes in the element. If
 *	the element is in braces, then *elementPtr will point to the character
 *	after the opening brace and *sizePtr will not include either of the
 *	braces. If there isn't an element in the list, *sizePtr will be zero,
 *	and both *elementPtr and *nextPtr will point just after the last
 *	character in the list. If literalPtr is non-NULL, *literalPtr is set
 *	to a boolean value indicating whether the substring returned as
 *	the values of **elementPtr and *sizePtr is the literal value of
 *	a list element.  If not, a call to TclCopyAndCollapse() is needed
 *	to produce the actual value of the list element.  Note: this function
 *	does NOT collapse backslash sequences, but uses *literalPtr to tell
 * 	callers when it is required for them to do so.

				 * of pointers to list elements. */
{
    const char **argv, *end, *element;
    char *p;
    int length, size, i, result, elSize;

    /*
     * Allocate enough space to work in. A (const char *) for each
     * (possible) list element plus one more for terminating NULL,
     * plus as many bytes as in the original string value, plus one
     * more for a terminating '\0'.  Space used to hold element separating
     * white space in the original string gets re-purposed to hold '\0'
     * characters in the argv array.
     */

	argv[i] = p;
	if (literal) {
	    memcpy(p, element, (size_t) elSize);
	    p += elSize;
	    *p = 0;
	    p++;
	} else {
	    p += 1 + TclCopyAndCollapse(elSize, element, p);

	}
    }

    argv[i] = NULL;
    *argvPtr = argv;
    *argcPtr = i;
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_ScanElement --
 *
 *	This function is a companion function to Tcl_ConvertElement. It scans
 *	a string to see what needs to be done to it (e.g. add backslashes or
 *	enclosing braces) to make the string into a valid Tcl list element.
 *
 * Results:
 *	The return value is an overestimate of the number of bytes that
 *	will be needed by Tcl_ConvertElement to produce a valid list element
 *	from src. The word at *flagPtr is filled in with a value needed by
 *	Tcl_ConvertElement when doing the actual conversion.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

int
Tcl_ScanElement(
    register const char *src,	/* String to convert to list element. */
    register int *flagPtr)	/* Where to store information to guide
				 * Tcl_ConvertCountedElement. */
{
    return Tcl_ScanCountedElement(src, -1, flagPtr);
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_ScanCountedElement --
 *
 *	This function is a companion function to Tcl_ConvertCountedElement. It
 *	scans a string to see what needs to be done to it (e.g. add
 *	backslashes or enclosing braces) to make the string into a valid Tcl
 *	list element. If length is -1, then the string is scanned from src up
 *	to the first null byte.
 *
 * Results:
 *	The return value is an overestimate of the number of bytes that
 *	will be needed by Tcl_ConvertCountedElement to produce a valid list
 *	element from src. The word at *flagPtr is filled in with a value
 *	needed by Tcl_ConvertCountedElement when doing the actual conversion.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

int
Tcl_ScanCountedElement(
    const char *src,		/* String to convert to Tcl list element. */
    int length,			/* Number of bytes in src, or -1. */
    int *flagPtr)		/* Where to store information to guide
				 * Tcl_ConvertElement. */
{
    int flags = CONVERT_ANY;
    int numBytes = TclScanElement(src, length, &flags);

    *flagPtr = flags;
    return numBytes;
}

/*
 *----------------------------------------------------------------------
 *
 * TclScanElement --
 *
 *	This function is a companion function to TclConvertElement. It
 *	scans a string to see what needs to be done to it (e.g. add
 *	backslashes or enclosing braces) to make the string into a valid Tcl
 *	list element. If length is -1, then the string is scanned from src up
 *	to the first null byte.  A NULL value for src is treated as an
 *	empty string.  The incoming value of *flagPtr is a report from the
 *	caller what additional flags it will pass to TclConvertElement().
 *
 * Results:
 *	The recommended formatting mode for the element is determined and
 *	a value is written to *flagPtr indicating that recommendation.  This
 *	recommendation is combined with the incoming flag values in *flagPtr
 *	set by the caller to determine how many bytes will be needed by
 *	TclConvertElement() in which to write the formatted element following
 *	the recommendation modified by the flag values.  This number of bytes
 *	is the return value of the routine.  In some situations it may be
 *	an overestimate, but so long as the caller passes the same flags
 *	to TclConvertElement(), it will be large enough.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

int
TclScanElement(
    const char *src,		/* String to convert to Tcl list element. */
    int length,			/* Number of bytes in src, or -1. */
    int *flagPtr)		/* Where to store information to guide
				 * Tcl_ConvertElement. */
{

    const char *p = src;
    int nestingLevel = 0;	/* Brace nesting count */

    int forbidNone = 0;		/* Do not permit CONVERT_NONE mode. Something
				   needs protection or escape. */
    int requireEscape = 0;	/* Force use of CONVERT_ESCAPE mode.  For some
				 * reason bare or brace-quoted form fails. */
    int extra = 0;		/* Count of number of extra bytes needed for
				 * formatted element, assuming we use escape
				 * sequences in formatting. */
    int bytesNeeded;		/* Buffer length computed to complete the
				 * element formatting in the selected mode. */
#if COMPAT
    int preferEscape = 0;	/* Use preferences to track whether to use */
    int preferBrace = 0;	/* CONVERT_MASK mode. */
    int braceCount = 0;		/* Count of all braces '{' '}' seen. */








#endif







    


    if ((p == NULL) || (length == 0) || ((*p == '\0') && (length == -1))) {
	/* Empty string element must be brace quoted. */
	*flagPtr = CONVERT_BRACE;
	return 2;
    }

    if ((*p == '{') || (*p == '"')) {
	/*
	 * Must escape or protect so leading character of value is not
	 * misinterpreted as list element delimiting syntax.





	 */
	forbidNone = 1;


#if COMPAT
	preferBrace = 1;
#endif
    }



    while (length) {





	switch (*p) {
	case '{':
#if COMPAT
	    braceCount++;
#endif
	    extra++;				/* Escape '{' => '\{' */
	    nestingLevel++;
	    break;
	case '}':
#if COMPAT
	    braceCount++;
#endif
	    extra++;				/* Escape '}' => '\}' */
	    nestingLevel--;
	    if (nestingLevel < 0) {

		/* Unbalanced braces!  Cannot format with brace quoting. */
		requireEscape = 1;
	    }
	    break;
	case ']':
	case '"':
#if COMPAT
	    forbidNone = 1;
	    extra++;		/* Escapes all just prepend a backslash */
	    preferEscape = 1;
	    break;
#else
	    /* FLOW THROUGH */
#endif
	case '[':
	case '$':
	case ';':
	case ' ':
	case '\f':
	case '\n':
	case '\r':
	case '\t':
	case '\v':
	    forbidNone = 1;
	    extra++;		/* Escape sequences all one byte longer. */
#if COMPAT
	    preferBrace = 1;
#endif
	    break;
	case '\\':
	    extra++;				/* Escape '\' => '\\' */
	    if ((length == 1) || ((length == -1) && (p[1] == '\0'))) {
		/* Final backslash. Cannot format with brace quoting. */
		requireEscape = 1;		
		break;
	    }
	    if (p[1] == '\n') {

		extra++;	/* Escape newline => '\n', one byte longer */
		/* Backslash newline sequence.  Brace quoting not permitted. */
		requireEscape = 1;
		length -= (length > 0);
		p++;
		break;
	    }

	    if ((p[1] == '{') || (p[1] == '}') || (p[1] == '\\')) {
		extra++;	/* Escape sequences all one byte longer. */
		length -= (length > 0);
		p++;
	    }
	    forbidNone = 1;
#if COMPAT
	    preferBrace = 1;
#endif
	    break;
	case '\0':
	    if (length == -1) {
		goto endOfString;
	    }
	    /* TODO: Panic on improper encoding? */
	    break;
	}
	length -= (length > 0);
	p++;
    }

    endOfString:
    if (nestingLevel != 0) {
	/* Unbalanced braces!  Cannot format with brace quoting. */
	requireEscape = 1;
    }

    /* We need at least as many bytes as are in the element value... */
    bytesNeeded = p - src;

    if (requireEscape) {
	/*
	 * We must use escape sequences.  Add all the extra bytes needed
	 * to have room to create them.
	 */
	bytesNeeded += extra;
	/* Make room to escape leading #, if needed. */
	if ((*src == '#') && !(*flagPtr & TCL_DONT_QUOTE_HASH)) {
	    bytesNeeded++;
	}
	*flagPtr = CONVERT_ESCAPE;
	goto overflowCheck;
    }
    if (*flagPtr & CONVERT_ANY) {
	/*
	 * The caller has not let us know what flags it will pass to
	 * TclConvertElement() so compute the max size we might need for
	 * any possible choice.  Normally the formatting using escape
	 * sequences is the longer one, and a minimum "extra" value of 2
	 * makes sure we don't request too small a buffer in those edge
	 * cases where that's not true.
	 */
	if (extra < 2) {
	    extra = 2;
	}
	*flagPtr &= ~CONVERT_ANY;
	*flagPtr |= TCL_DONT_USE_BRACES;
    }
    if (forbidNone) {
	/* We must request some form of quoting of escaping... */
#if COMPAT
	if (preferEscape && !preferBrace) {
	    /*
	     * If we are quoting solely due to ] or internal " characters
	     * use the CONVERT_MASK mode where we escape all special 
	     * characters except for braces.  "extra" counted space needed
	     * to escape braces too, so substract "braceCount" to get our
	     * actual needs.
	     */
	    bytesNeeded += (extra - braceCount);
	    /* Make room to escape leading #, if needed. */
	    if ((*src == '#') && !(*flagPtr & TCL_DONT_QUOTE_HASH)) {
		bytesNeeded++;
	    }
	    /*
	     * If the caller reports it will direct TclConvertElement() to
	     * use full escapes on the element, add back the bytes needed to
	     * escape the braces.
	     */
	    if (*flagPtr & TCL_DONT_USE_BRACES) {
		bytesNeeded += braceCount;
	    }
	    *flagPtr = CONVERT_MASK;
	    goto overflowCheck;
	}
#endif
	if (*flagPtr & TCL_DONT_USE_BRACES) {
	    /*
	     * If the caller reports it will direct TclConvertElement() to
	     * use escapes, add the extra bytes needed to have room for them.
	     */
	    bytesNeeded += extra;
	    /* Make room to escape leading #, if needed. */
	    if ((*src == '#') && !(*flagPtr & TCL_DONT_QUOTE_HASH)) {
		bytesNeeded++;
	    }
	} else {
	    /* Add 2 bytes for room for the enclosing braces. */
	    bytesNeeded += 2;
	}
	*flagPtr = CONVERT_BRACE;
	goto overflowCheck;
    }

    /* So far, no need to quote or escape anything. */
    if ((*src == '#') && !(*flagPtr & TCL_DONT_QUOTE_HASH)) {
	/* If we need to quote a leading #, make room to enclose in braces. */
	bytesNeeded += 2;
    }
    *flagPtr = CONVERT_NONE;

    overflowCheck:
    if (bytesNeeded < 0) {
	Tcl_Panic("TclScanElement: string length overflow");
    }
    return bytesNeeded;
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_ConvertElement --
 *

int
Tcl_ConvertCountedElement(
    register const char *src,	/* Source information for list element. */
    int length,			/* Number of bytes in src, or -1. */
    char *dst,			/* Place to put list-ified element. */
    int flags)			/* Flags produced by Tcl_ScanElement. */
{
    int numBytes = TclConvertElement(src, length, dst, flags);
    dst[numBytes] = '\0';
    return numBytes;
}

/*
 *----------------------------------------------------------------------
 *
 * TclConvertElement --
 *
 *	This is a companion function to TclScanElement. Given the
 *	information produced by TclScanElement, this function converts
 *	a string to a list element equal to that string.
 *
 * Results:
 *	Information is copied to *dst in the form of a list element identical
 *	to src (i.e. if Tcl_SplitList is applied to dst it will produce a
 *	string identical to src). The return value is a count of the number of
 *	characters copied (not including the terminating NULL character).
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

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

    /* Let the caller demand we use escape sequences rather than braces. */
    if ((flags & TCL_DONT_USE_BRACES) && (conversion & CONVERT_BRACE)) {
	conversion = CONVERT_ESCAPE;
    }

    /* No matter what the caller demands, empty string must be braced! */
    if ((src == NULL) || (length == 0) || ((*src == '\0') && (length == -1))) {
	src = tclEmptyStringRep;

	length = 0;
	conversion = CONVERT_BRACE;
    }

    /* Escape leading hash as needed and requested. */
    if ((*src == '#') && !(flags & TCL_DONT_QUOTE_HASH)) {


















	if (conversion == CONVERT_ESCAPE) {











	    p[0] = '\\';
	    p[1] = '#';
	    p += 2;
	    src++;
	    length--;
	} else {
	    conversion = CONVERT_BRACE;
	}
    }

    /* No escape or quoting needed.  Copy the literal string value. */
    if (conversion == CONVERT_NONE) {
	if (length == -1) {
	    /* TODO: INT_MAX overflow? */
	    while (*src) {
		*p++ = *src++;
	    }
	    return p - dst;
	} else {
	    memcpy(dst, src, length);
	    return length;
	}
    }

    /* Formatted string is original string enclosed in braces. */
    if (conversion == CONVERT_BRACE) {
	*p = '{';
	p++;
	if (length == -1) {
	    /* TODO: INT_MAX overflow? */
	    while (*src) {
		*p++ = *src++;
	    }
	} else {
	    memcpy(p, src, length);
	    p += length;
	}
	*p = '}';
	p++;
	return p - dst;
    }

    /* conversion == CONVERT_ESCAPE or CONVERT_MASK */

    /* Formatted string is original string converted to escape sequences. */
    for ( ; length; src++, length -= (length > 0)) {
	switch (*src) {
	case ']':
	case '[':
	case '$':
	case ';':
	case ' ':
	case '\\':
	case '"':
	    *p = '\\';
	    p++;
	    break;
	case '{':
	case '}':





#if COMPAT


	    if (conversion == CONVERT_ESCAPE) {
#endif
		*p = '\\';
		p++;
#if COMPAT
	    }
#endif
	    break;
	case '\f':
	    *p = '\\';
	    p++;
	    *p = 'f';
	    p++;
	    continue;
	case '\n':
	    *p = '\\';
	    p++;
	    *p = 'n';
	    p++;
	    continue;
	case '\r':
	    *p = '\\';
	    p++;
	    *p = 'r';
	    p++;
	    continue;
	case '\t':
	    *p = '\\';
	    p++;
	    *p = 't';
	    p++;
	    continue;
	case '\v':
	    *p = '\\';
	    p++;
	    *p = 'v';
	    p++;
	    continue;
	case '\0':
	    if (length == -1) {
		return p - dst;
	    }
	    /* 
	     * If we reach this point, there's an embedded NULL in the
	     * string range being processed, which should not happen when
	     * the encoding rules for Tcl strings are properly followed.
	     * If the day ever comes when we stop tolerating such things,
	     * this is where to put the Tcl_Panic().
	     */
	    break;
	}
	*p = *src;
	p++;
    }


    return p - dst;
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_Merge --
 *

char *
Tcl_Merge(
    int argc,			/* How many strings to merge. */
    const char *const *argv)	/* Array of string values. */
{
#   define LOCAL_SIZE 20
    int localFlags[LOCAL_SIZE], *flagPtr = NULL;
    int i, bytesNeeded = 0;
    char *result, *dst;
    const int maxFlags = UINT_MAX / sizeof(int);

    if (argc == 0) {
	/*
	 * Handle empty list case first, so logic of the general case
	 * can be simpler.
	 */
	result = ckalloc(1);
	result[0] = '\0';
	return result;
    }

    /*
     * Pass 1: estimate space, gather flags.
     */

    if (argc <= LOCAL_SIZE) {
	flagPtr = localFlags;
    } else if (argc > maxFlags) {
	/*
	 * We cannot allocate a large enough flag array to format this
	 * list in one pass.  We could imagine converting this routine
	 * to a multi-pass implementation, but for sizeof(int) == 4, 
	 * the limit is a max of 2^30 list elements and since each element
	 * is at least one byte formatted, and requires one byte space
	 * between it and the next one, that a minimum space requirement
	 * of 2^31 bytes, which is already INT_MAX. If we tried to format
	 * a list of > maxFlags elements, we're just going to overflow
	 * the size limits on the formatted string anyway, so just issue
	 * that same panic early.
	 */
	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
    } else {
	flagPtr = ckalloc(argc * sizeof(int));
    }

    for (i = 0; i < argc; i++) {
	flagPtr[i] = ( i ? TCL_DONT_QUOTE_HASH : 0 );
	bytesNeeded += TclScanElement(argv[i], -1, &flagPtr[i]);
	if (bytesNeeded < 0) {
	    Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
	}
    }
    if (bytesNeeded > INT_MAX - argc + 1) {
	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
    }
    bytesNeeded += argc;

    /*
     * Pass two: copy into the result area.
     */

    result = ckalloc(bytesNeeded);
    dst = result;
    for (i = 0; i < argc; i++) {

	flagPtr[i] |= ( i ? TCL_DONT_QUOTE_HASH : 0 );
	dst += TclConvertElement(argv[i], -1, dst, flagPtr[i]);
	*dst = ' ';
	dst++;
    }



    dst[-1] = 0;


    if (flagPtr != localFlags) {
	ckfree(flagPtr);
    }
    return result;
}


char *
Tcl_DStringAppendElement(
    Tcl_DString *dsPtr,		/* Structure describing dynamic string. */
    const char *element)	/* String to append. Must be
				 * null-terminated. */
{

    char *dst = dsPtr->string + dsPtr->length;
    int needSpace = TclNeedSpace(dsPtr->string, dst);


    int flags = needSpace ? TCL_DONT_QUOTE_HASH : 0;
    int newSize = dsPtr->length + needSpace
	    + TclScanElement(element, -1, &flags);

    /*
     * Allocate a larger buffer for the string if the current one isn't large
     * enough. Allocate extra space in the new buffer so that there will be
     * room to grow before we have to allocate again. SPECIAL NOTE: must use
     * memcpy, not strcpy, to copy the string to a larger buffer, since there
     * may be embedded NULLs in the string in some cases.
     */

    if (newSize >= dsPtr->spaceAvl) {
	dsPtr->spaceAvl = newSize * 2;
	if (dsPtr->string == dsPtr->staticSpace) {
	    char *newString = ckalloc(dsPtr->spaceAvl);

	    memcpy(newString, dsPtr->string, (size_t) dsPtr->length);
	    dsPtr->string = newString;
	} else {
	    dsPtr->string = ckrealloc(dsPtr->string, dsPtr->spaceAvl);
	}
	dst = dsPtr->string + dsPtr->length;
    }

    /*
     * Convert the new string to a list element and copy it into the buffer at
     * the end, with a space, if needed.
     */


    if (needSpace) {
	*dst = ' ';
	dst++;
	dsPtr->length++;

	/*
	 * If we need a space to separate this element from preceding stuff,
	 * then this element will not lead a list, and need not have it's
	 * leading '#' quoted.
	 */

	flags |= TCL_DONT_QUOTE_HASH;
    }
    dsPtr->length += TclConvertElement(element, -1, dst, flags);
    dsPtr->string[dsPtr->length] = '\0';
    return dsPtr->string;
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_DStringSetLength --

	set dest $src
    }

    set ns [uplevel 1 [list ::namespace current]]

    set locale [string tolower $locale]








    dict set Msgs $locale $ns $src $dest
    return $dest
}

# msgcat::mcmset --
#
#	Set the translation for multiple strings in a specified locale.

	return -code error "bad translation list:\
		 should be \"[lindex [info level 0] 0] locale {src dest ...}\""
    }

    set locale [string tolower $locale]
    set ns [uplevel 1 [list ::namespace current]]








    foreach {src dest} $pairs {
        dict set Msgs $locale $ns $src $dest
    }

    return $length
}

    list [catch join msg] $msg $errorCode
} {1 {wrong # args: should be "join list ?joinString?"} {TCL WRONGARGS}}
test join-2.2 {join errors} {
    list [catch {join a b c} msg] $msg $errorCode
} {1 {wrong # args: should be "join list ?joinString?"} {TCL WRONGARGS}}
test join-2.3 {join errors} {
    list [catch {join "a \{ c" 111} msg] $msg $errorCode
} {1 {unmatched open brace in list} {TCL VALUE LIST BRACE}}

test join-3.1 {joinString is binary ok} {
  string length [join {a b c} a\0b]
} 9
test join-3.2 {join is binary ok} {
  string length [join "a\0b a\0b a\0b"]
} 11

	set last [expr $last-1]
    }
    return [concat $result $list]
}
test list-3.1 {SetListFromAny and lrange/concat results} {
    slowsort {fred julie alex carol bill annie}
} {alex annie bill carol fred julie}

test list-4.1 {Bug 3173086} {
    string is list "{[list \\\\\}]}"
} 1

# cleanup
::tcltest::cleanupTests
return

        lappend res [TestOp $op 5.0 1]
        lappend exp "can't use floating-point value as operand of \"$op\" ARITH DOMAIN {floating-point value}"
        lappend res [TestOp $op 1 5.0]
        lappend exp "can't use floating-point value as operand of \"$op\" ARITH DOMAIN {floating-point value}"
    }
    foreach op {in ni} {
        lappend res [TestOp $op 5 "a b \{ c"]
        lappend exp "unmatched open brace in list TCL VALUE LIST BRACE"
    }
    lappend res [TestOp % 5 0]
    lappend exp "divide by zero ARITH DIVZERO {divide by zero}"
    lappend res [TestOp % 9838923468297346238478737647637375 0]
    lappend exp "divide by zero ARITH DIVZERO {divide by zero}"
    lappend res [TestOp / 5 0]
    lappend exp "divide by zero ARITH DIVZERO {divide by zero}"

    after cancel $timer
    close $s
    return $x
} -cleanup {
    interp bgerror {} $handler
} -result {divide by zero}

test socket_$af-6.2 {
    readable fileevent on server socket
} -setup {
    set sock [socket -server dummy 0]
} -body {
    fileevent $sock readable dummy
} -cleanup {
    close $sock
} -returnCodes 1 -result "channel is not readable"

test socket_$af-6.3 {writable fileevent on server socket} -setup {
    set sock [socket -server dummy 0]
} -body {
    fileevent $sock writable dummy
} -cleanup {
    close $sock
} -returnCodes 1 -result "channel is not writable"

test socket_$af-7.1 {testing socket specific options} -setup {
    file delete $path(script)
    set f [open $path(script) w]
    puts $f {
	set ss [socket -server accept 0]
	proc accept args {
	    global x

    set result ""
    set numbers [list 1.0 +1.0 ++1.0 +-1.0 -+1.0 -1.0 --1.0 "- +1.0"]
    foreach num $numbers {
	lappend result [string is double -strict $num]
    }
    set result
} {1 1 0 0 0 1 0 0}
test string-6.92 {string is integer, 32-bit overflow} {
    # Bug 718878
    set x 0x100000000
    list [string is integer -failindex var $x] $var
} {0 -1}
test string-6.93 {string is integer, 32-bit overflow} {
    # Bug 718878
    set x 0x100000000
    append x ""
    list [string is integer -failindex var $x] $var
} {0 -1}
test string-6.94 {string is integer, 32-bit overflow} {
    # Bug 718878
    set x 0x100000000
    list [string is integer -failindex var [expr {$x}]] $var
} {0 -1}
test string-6.95 {string is wideinteger, true} {
    string is wideinteger +1234567890
} 1

regerror.o: $(REGHDRS) $(GENERIC_DIR)/regerrs.h $(GENERIC_DIR)/regerror.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/regerror.c

tclAppInit.o: $(UNIX_DIR)/tclAppInit.c
	$(CC) -c $(APP_CC_SWITCHES) $(UNIX_DIR)/tclAppInit.c




tclAlloc.o: $(GENERIC_DIR)/tclAlloc.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclAlloc.c

tclAssembly.o: $(GENERIC_DIR)/tclAssembly.c $(COMPILEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclAssembly.c

tclAsync.o: $(GENERIC_DIR)/tclAsync.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclAsync.c

 * a #define of TCL_LOCAL_APPINIT instead of rewriting this entire file. The
 * #if checks for that #define and uses Tcl_AppInit if it doesn't exist.
 */

#ifndef TCL_LOCAL_APPINIT
#define TCL_LOCAL_APPINIT Tcl_AppInit
#endif
#ifndef MODULE_SCOPE
#   define MODULE_SCOPE extern
#endif
MODULE_SCOPE int TCL_LOCAL_APPINIT(Tcl_Interp *);
MODULE_SCOPE int main(int, char **);

/*
 * The following #if block allows you to change how Tcl finds the startup
 * script, prime the library or encoding paths, fiddle with the argv, etc.,
 * without needing to rewrite Tcl_Main()

TcpWatchProc(
    ClientData instanceData,	/* The socket state. */
    int mask)			/* Events of interest; an OR-ed combination of
				 * TCL_READABLE, TCL_WRITABLE and
				 * TCL_EXCEPTION. */
{
    TcpState *statePtr = (TcpState *) instanceData;








    TcpFdList *fds;

    for (fds = statePtr->fds; fds != NULL; fds = fds->next) {
        if (mask) {
            Tcl_CreateFileHandler(fds->fd, mask,
                                  (Tcl_FileProc *) Tcl_NotifyChannel,
                                  (ClientData) statePtr->channel);
        } else {
            Tcl_DeleteFileHandler(fds->fd);
        }

    }
}

/*
 *----------------------------------------------------------------------
 *
 * TcpGetHandleProc --

		echo "$as_me:$LINENO: result:    Using 64-bit $MACHINE mode" >&5
echo "${ECHO_T}   Using 64-bit $MACHINE mode" >&6
		;;
	    ia64)
		MACHINE="IA64"
		echo "$as_me:$LINENO: result:    Using 64-bit $MACHINE mode" >&5
echo "${ECHO_T}   Using 64-bit $MACHINE mode" >&6
		;;
	    *)
		cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

			#ifdef _WIN64
			#error 64-bit
			#endif

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  tcl_win_64bit=no
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

tcl_win_64bit=yes

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
		if test "$tcl_win_64bit" = "yes" ; then
			do64bit=amd64
			MACHINE="AMD64"
			echo "$as_me:$LINENO: result:    Using 64-bit $MACHINE mode" >&5
echo "${ECHO_T}   Using 64-bit $MACHINE mode" >&6
		fi
		;;
	esac
    else
	if test "${SHARED_BUILD}" = "0" ; then
	    # static
            echo "$as_me:$LINENO: result: using static flags" >&5
echo "${ECHO_T}using static flags" >&6

	    amd64|x64|yes)
		MACHINE="AMD64" ; # assume AMD64 as default 64-bit build
		AC_MSG_RESULT([   Using 64-bit $MACHINE mode])
		;;
	    ia64)
		MACHINE="IA64"
		AC_MSG_RESULT([   Using 64-bit $MACHINE mode])
		;;
	    *)
		AC_TRY_COMPILE([
			#ifdef _WIN64
			#error 64-bit
			#endif
		], [],
			tcl_win_64bit=no,
			tcl_win_64bit=yes
		)
		if test "$tcl_win_64bit" = "yes" ; then
			do64bit=amd64
			MACHINE="AMD64"
			AC_MSG_RESULT([   Using 64-bit $MACHINE mode])
		fi
		;;
	esac
    else
	if test "${SHARED_BUILD}" = "0" ; then
	    # static
            AC_MSG_RESULT([using static flags])
	    runtime=-MT