} else {
	    end = start + (step * (len - 1));
	    dend = end;
	}
    }

    if (len > TCL_SIZE_MAX) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"max length of a Tcl list exceeded", TCL_AUTO_LENGTH));
	Tcl_SetErrorCode(interp, "TCL", "MEMORY", (void *)NULL);
	return TCL_ERROR;
    }

    if (arithSeriesObj) {
	*arithSeriesObj = (useDoubles)
	    ? NewArithSeriesDbl(dstart, dend, dstep, len)

		/* If this exists, it has already been populated */
		objv = arithSeriesRepPtr->elements;
	    } else {
		/* Construct the elements array */
		objv = (Tcl_Obj **) Tcl_Alloc(sizeof(Tcl_Obj*) * objc);
		if (objv == NULL) {
		    if (interp) {
			Tcl_SetObjResult(interp, Tcl_NewStringObj(
				"max length of a Tcl list exceeded",
				TCL_AUTO_LENGTH));
			Tcl_SetErrorCode(interp, "TCL", "MEMORY", (void *)NULL);
		    }
		    return TCL_ERROR;
		}
		arithSeriesRepPtr->elements = objv;

		Tcl_Size i;

	} else {
	    objv = NULL;
	}
	*objvPtr = objv;
	*objcPtr = objc;
    } else {
	if (interp != NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "value is not an arithseries", TCL_AUTO_LENGTH));
	    Tcl_SetErrorCode(interp, "TCL", "VALUE", "UNKNOWN", (void *)NULL);
	}
	return TCL_ERROR;
    }
    return TCL_OK;
}


	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "imm8");
	    goto cleanup;
	}
	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK) {
	    goto cleanup;
	}
	if (opnd < 0 || opnd > 3) {
	    Tcl_SetObjResult(interp,
		     Tcl_NewStringObj("operand must be [0..3]", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "OPERAND<0,>3", (void *)NULL);
	    goto cleanup;
	}
	BBEmitInstInt1(assemEnvPtr, tblIdx, opnd, opnd);
	break;

    case ASSEM_CONCAT1:

	    goto cleanup;
	}
	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK) {
	    goto cleanup;
	}
	if (opnd < 2) {
	    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
		Tcl_SetObjResult(interp,
			Tcl_NewStringObj("operand must be >=2", -1));
		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "OPERAND>=2", (void *)NULL);
	    }
	    goto cleanup;
	}
	BBEmitInstInt4(assemEnvPtr, tblIdx, opnd, opnd);
	break;

    Tcl_Size i;

    if (TclListObjLength(interp, jumps, &objc) != TCL_OK) {
	return TCL_ERROR;
    }
    if (objc % 2 != 0) {
	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "jump table must have an even number of list elements",
		    -1));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADJUMPTABLE", (void *)NULL);
	}
	return TCL_ERROR;
    }
    if (TclListObjGetElements(interp, jumps, &objc, &objv) != TCL_OK) {
	return TCL_ERROR;
    }

    for (i = 0; i < objc; i+=2) {
	DEBUG_PRINT("  %s -> %s\n", TclGetString(objv[i]),
		TclGetString(objv[i+1]));
	hashEntry = Tcl_CreateHashEntry(jtHashPtr, TclGetString(objv[i]),
		&isNew);
	if (!isNew) {
	    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"duplicate entry in jump table for \"%s\"",
			TclGetString(objv[i])));
		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "DUPJUMPTABLEENTRY", (void *)NULL);
		DeleteMirrorJumpTable(jtPtr);
		return TCL_ERROR;
	    }
	}
	Tcl_SetHashValue(hashEntry, objv[i+1]);
	Tcl_IncrRefCount(objv[i+1]);

    Tcl_Interp* interp = (Tcl_Interp*) assemEnvPtr->envPtr->iPtr;
    Tcl_Obj* operandObj;

    TclNewObj(operandObj);
    if (!TclWordKnownAtCompileTime(*tokenPtrPtr, operandObj)) {
	Tcl_DecrRefCount(operandObj);
	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "assembly code may not contain substitutions", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "NOSUBST", (void *)NULL);
	}
	return TCL_ERROR;
    }
    *tokenPtrPtr = TokenAfter(*tokenPtrPtr);
    Tcl_IncrRefCount(operandObj);
    *operandObjPtr = operandObj;

	Tcl_DecrRefCount(varNameObj);
	return TCL_INDEX_NONE;
    }
    localVar = TclFindCompiledLocal(varNameStr, varNameLen, 1, envPtr);
    Tcl_DecrRefCount(varNameObj);
    if (localVar < 0) {
	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "cannot use this instruction to create a variable"
		    " in a non-proc context", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "LVT", (void *)NULL);
	}
	return TCL_INDEX_NONE;
    }
    *tokenPtrPtr = TokenAfter(tokenPtr);
    return localVar;
}

    const char* name,		/* Variable name to check */
    int nameLen)		/* Length of the variable */
{
    const char* p;

    for (p = name; p+2 < name+nameLen;  p++) {
	if ((*p == ':') && (p[1] == ':')) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "variable \"%s\" is not local", name));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "NONLOCAL", name, (void *)NULL);
	    return TCL_ERROR;
	}
    }
    return TCL_OK;
}


 */

static int
CheckOneByte(
    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
    int value)			/* Value to check */
{
    Tcl_Obj* result;		/* Error message */

    if (value < 0 || value > 0xFF) {
	result = Tcl_NewStringObj("operand does not fit in one byte", -1);
	Tcl_SetObjResult(interp, result);
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "1BYTE", (void *)NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*

 */

static int
CheckSignedOneByte(
    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
    int value)			/* Value to check */
{
    Tcl_Obj* result;		/* Error message */

    if (value > 0x7F || value < -0x80) {
	result = Tcl_NewStringObj("operand does not fit in one byte", -1);
	Tcl_SetObjResult(interp, result);
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "1BYTE", (void *)NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*

 */

static int
CheckNonNegative(
    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
    int value)			/* Value to check */
{
    Tcl_Obj* result;		/* Error message */

    if (value < 0) {
	result = Tcl_NewStringObj("operand must be nonnegative", -1);
	Tcl_SetObjResult(interp, result);
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "NONNEGATIVE", (void *)NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*

 */

static int
CheckStrictlyPositive(
    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
    int value)			/* Value to check */
{
    Tcl_Obj* result;		/* Error message */

    if (value <= 0) {
	result = Tcl_NewStringObj("operand must be positive", -1);
	Tcl_SetObjResult(interp, result);
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "POSITIVE", (void *)NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*

    entry = Tcl_CreateHashEntry(&assemEnvPtr->labelHash, labelName, &isNew);
    if (!isNew) {
	/*
	 * This is a duplicate label.
	 */

	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "duplicate definition of label \"%s\"", labelName));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "DUPLABEL", labelName,
		    (void *)NULL);
	}
	return TCL_ERROR;
    }

    /*

{
    CompileEnv* envPtr = assemEnvPtr->envPtr;
				/* Compilation environment */
    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
				/* Tcl interpreter */

    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"undefined label \"%s\"", TclGetString(jumpTarget)));
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "NOLABEL",
		TclGetString(jumpTarget), (void *)NULL);
	Tcl_SetErrorLine(interp, bbPtr->jumpLine);
    }
}

/*

	opcode = (envPtr->codeStart)[offset];
	if (BytecodeMightThrow(opcode)) {
	    /*
	     * Report an error for a throw in the wrong context.
	     */

	    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"\"%s\" instruction may not appear in "
			"a context where an exception has been "
			"caught and not disposed of.",
			tclInstructionTable[opcode].name));
		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADTHROW", (void *)NULL);
		AddBasicBlockRangeToErrorInfo(assemEnvPtr, blockPtr);
	    }
	    return TCL_ERROR;
	}
	offset += tclInstructionTable[opcode].numBytes;
    }

	 * among the paths that reach it.
	 */

	if (blockPtr->initialStackDepth == initialStackDepth) {
	    return TCL_OK;
	}
	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "inconsistent stack depths on two execution paths", -1));

	    /*
	     * TODO - add execution trace of both paths
	     */

	    Tcl_SetErrorLine(interp, blockPtr->startLine);
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACK", (void *)NULL);

    /*
     * Calculate minimum stack depth, and flag an error if the block
     * underflows the stack.
     */

    if (initialStackDepth + blockPtr->minStackDepth < 0) {
	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj("stack underflow", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACK", (void *)NULL);
	    AddBasicBlockRangeToErrorInfo(assemEnvPtr, blockPtr);
	    Tcl_SetErrorLine(interp, blockPtr->startLine);
	}
	return TCL_ERROR;
    }

    /*
     * Make sure that the block doesn't try to pop below the stack level of an
     * enclosing catch.
     */

    if (blockPtr->enclosingCatch != 0 &&
	    initialStackDepth + blockPtr->minStackDepth
	    < (blockPtr->enclosingCatch->initialStackDepth
		+ blockPtr->enclosingCatch->finalStackDepth)) {
	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "code pops stack below level of enclosing catch", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACKINCATCH", (void *)NULL);
	    AddBasicBlockRangeToErrorInfo(assemEnvPtr, blockPtr);
	    Tcl_SetErrorLine(interp, blockPtr->startLine);
	}
	return TCL_ERROR;
    }

	/*
	 * Exit with unbalanced stack.
	 */

	if (depth != 1) {
	    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"stack is unbalanced on exit from the code (depth=%d)",
			depth));
		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACK", (void *)NULL);
	    }
	    return TCL_ERROR;
	}

	/*
	 * Record stack usage.

     * rechecked.
     */

    if (bbPtr->catchState == BBCS_UNKNOWN) {
	bbPtr->enclosingCatch = enclosing;
    } else if (bbPtr->enclosingCatch != enclosing) {
	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "execution reaches an instruction in inconsistent "
		    "exception contexts", -1));
	    Tcl_SetErrorLine(interp, bbPtr->startLine);
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADCATCH", (void *)NULL);
	}
	return TCL_ERROR;
    }
    if (state > bbPtr->catchState) {
	bbPtr->catchState = state;

	/*
	 * If the block ends a catch, the state for the successor is whatever
	 * the state was on entry to the catch.
	 */

	if (enclosing == NULL) {
	    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"endCatch without a corresponding beginCatch", -1));
		Tcl_SetErrorLine(interp, bbPtr->startLine);
		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADENDCATCH", (void *)NULL);
	    }
	    return TCL_ERROR;
	}
	fallThruEnclosing = enclosing->enclosingCatch;
	fallThruState = enclosing->catchState;

static int
CheckForUnclosedCatches(
    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
{
    CompileEnv* envPtr = assemEnvPtr->envPtr;
				/* Compilation environment */
    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
				/* Tcl interpreter */

    if (assemEnvPtr->curr_bb->catchState >= BBCS_INCATCH) {
	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {


	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "catch still active on exit from assembly code", -1));
	    Tcl_SetErrorLine(interp,
		    assemEnvPtr->curr_bb->enclosingCatch->startLine);
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "UNCLOSEDCATCH", (void *)NULL);
	}
	return TCL_ERROR;
    }
    return TCL_OK;

static int
buildInfoObjCmd2(
    void *clientData,
    Tcl_Interp *interp,		/* Current interpreter. */
    Tcl_Size objc,		/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{












    if (objc > 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "?option?");
	return TCL_ERROR;



    }
    if (objc == 2) {



	Tcl_Size len;
	const char *arg = TclGetStringFromObj(objv[1], &len);
	if (len == 7 && !strcmp(arg, "version")) {
	    char buf[80];
	    const char *p = strchr((char *)clientData, '.');
	    if (p) {
		const char *q = strchr(p + 1, '.');
		const char *r = strchr(p + 1, '+');
		p = (q < r) ? q : r;
	    }
	    if (p) {



		memcpy(buf, (char *)clientData, p - (char *)clientData);
		buf[p - (char *)clientData] = '\0';
		Tcl_AppendResult(interp, buf, (char *)NULL);
	    }
	    return TCL_OK;
	} else if (len == 10 && !strcmp(arg, "patchlevel")) {

	    char buf[80];
	    const char *p = strchr((char *)clientData, '+');


	    if (p) {
		memcpy(buf, (char *)clientData, p - (char *)clientData);
		buf[p - (char *)clientData] = '\0';
		Tcl_AppendResult(interp, buf, (char *)NULL);
	    }
	    return TCL_OK;
	} else if (len == 6 && !strcmp(arg, "commit")) {
	    const char *q, *p = strchr((char *)clientData, '+');
	    if (p) {
		if ((q = strchr(p, '.'))) {
		    char buf[80];
		    memcpy(buf, p + 1, q - p - 1);
		    buf[q - p - 1] = '\0';
		    Tcl_AppendResult(interp, buf, (char *)NULL);
		} else {
		    Tcl_AppendResult(interp, p + 1, (char *)NULL);
		}
	    }
	    return TCL_OK;
	} else if (len == 8 && !strcmp(arg, "compiler")) {
	    const char *p = strchr((char *)clientData, '.');
	    while (p) {



		if (!strncmp(p + 1, "clang-", 6)
			|| !strncmp(p + 1, "gcc-", 4)
			|| !strncmp(p + 1, "icc-", 4)
			|| !strncmp(p + 1, "msvc-", 5)) {
		    const char *q = strchr(p + 1, '.');
		    if (q) {
			char buf[16];
			memcpy(buf, p + 1, q - p - 1);
			buf[q - p - 1] = '\0';
			Tcl_AppendResult(interp, buf, (char *)NULL);
		    } else {


			Tcl_AppendResult(interp, p + 1, (char *)NULL);
		    }
		    return TCL_OK;
		}
		p = strchr(p + 1, '.');
	    }
	    Tcl_AppendResult(interp, "0", (char *)NULL);
	    return TCL_OK;
	}


	const char *p = strchr((char *)clientData, '.');
	while (p) {
	    if (!strncmp(p + 1, arg, len)
		    && ((p[len + 1] == '.') || (p[len + 1] == '\0'))) {
		Tcl_AppendResult(interp, "1", (char *)NULL);
		return TCL_OK;
	    }
	    p = strchr(p + 1, '.');
	}
	Tcl_AppendResult(interp, "0", (char *)NULL);
	return TCL_OK;
    }
    Tcl_AppendResult(interp, (char *)clientData, (char *)NULL);
    return TCL_OK;
}

static int
buildInfoObjCmd(
    void *clientData,
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    return buildInfoObjCmd2(clientData, interp, objc, objv);
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_CreateInterp --
 *
 *	Create a new TCL command interpreter.
 *

    void *clientData,
    Tcl_Interp *interp,
    TCL_UNUSED(int) /*objc*/,
    TCL_UNUSED(Tcl_Obj *const *) /* objv */)
{
    const UnsafeEnsembleInfo *infoPtr = (const UnsafeEnsembleInfo *)clientData;

    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "not allowed to invoke subcommand %s of %s",
	    infoPtr->commandName, infoPtr->ensembleNsName));
    Tcl_SetErrorCode(interp, "TCL", "SAFE", "SUBCOMMAND", (char *)NULL);
    return TCL_ERROR;
}

/*
 *--------------------------------------------------------------
 *

     *
     * But as we currently limit ourselves to the global namespace only for
     * the source, in order to avoid potential confusion, lets prevent "::" in
     * the token too. - dl
     */

    if (strstr(hiddenCmdToken, "::") != NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"cannot use namespace qualifiers in hidden command"
		" token (rename)", -1));
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "HIDDENTOKEN", (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Find the command to hide. An error is returned if cmdName can't be
     * found. Look up the command only from the global namespace. Full path of

    cmdPtr = (Command *) cmd;

    /*
     * Check that the command is really in global namespace
     */

    if (cmdPtr->nsPtr != iPtr->globalNsPtr) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"can only hide global namespace commands (use rename then hide)",
		-1));
	Tcl_SetErrorCode(interp, "TCL", "HIDE", "NON_GLOBAL", (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Initialize the hidden command table if necessary.
     */

     * It is an error to move an exposed command to a hidden command with
     * hiddenCmdToken if a hidden command with the name hiddenCmdToken already
     * exists.
     */

    hPtr = Tcl_CreateHashEntry(hiddenCmdTablePtr, hiddenCmdToken, &isNew);
    if (!isNew) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"hidden command named \"%s\" already exists",
		hiddenCmdToken));
	Tcl_SetErrorCode(interp, "TCL", "HIDE", "ALREADY_HIDDEN", (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * NB: This code is currently 'like' a rename to a special separate name
     * table. Changes here and in TclRenameCommand must be kept in synch until

    /*
     * Check that we have a regular name for the command (that the user is not
     * trying to do an expose and a rename (to another namespace) at the same
     * time).
     */

    if (strstr(cmdName, "::") != NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"cannot expose to a namespace (use expose to toplevel, then rename)",
		-1));
	Tcl_SetErrorCode(interp, "TCL", "EXPOSE", "NON_GLOBAL", (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Get the command from the hidden command table:
     */

    hPtr = NULL;
    hiddenCmdTablePtr = iPtr->hiddenCmdTablePtr;
    if (hiddenCmdTablePtr != NULL) {
	hPtr = Tcl_FindHashEntry(hiddenCmdTablePtr, hiddenCmdToken);
    }
    if (hPtr == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"unknown hidden command \"%s\"", hiddenCmdToken));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "HIDDENTOKEN",
		hiddenCmdToken, (char *)NULL);
	return TCL_ERROR;
    }
    cmdPtr = (Command *) Tcl_GetHashValue(hPtr);

    /*
     * Check that we have a true global namespace command (enforced by
     * Tcl_HideCommand but let's double check. (If it was not, we would not
     * really know how to handle it).
     */

    if (cmdPtr->nsPtr != iPtr->globalNsPtr) {
	/*
	 * This case is theoretically impossible, we might rather Tcl_Panic
	 * than 'nicely' erroring out ?
	 */

	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"trying to expose a non-global command namespace command",
		-1));
	return TCL_ERROR;
    }

    /*
     * This is the global table.
     */

    nsPtr = cmdPtr->nsPtr;

    /*
     * It is an error to overwrite an existing exposed command as a result of
     * exposing a previously hidden command.
     */

    hPtr = Tcl_CreateHashEntry(&nsPtr->cmdTable, cmdName, &isNew);
    if (!isNew) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"exposed command \"%s\" already exists", cmdName));
	Tcl_SetErrorCode(interp, "TCL", "EXPOSE", "COMMAND_EXISTS", (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Command resolvers (per-interp, per-namespace) might have resolved to a
     * command for the given namespace scope with this command not being

     * Find the existing command. An error is returned if cmdName can't be
     * found.
     */

    cmd = Tcl_FindCommand(interp, oldName, NULL, /*flags*/ 0);
    cmdPtr = (Command *) cmd;
    if (cmdPtr == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"can't %s \"%s\": command doesn't exist",
		((newName == NULL) || (*newName == '\0')) ? "delete" : "rename",
		oldName));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "COMMAND", oldName, (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * If the new command name is NULL or empty, delete the command. Do this
     * with Tcl_DeleteCommandFromToken, since we already have the command.

     * create the containing namespaces just like Tcl_CreateObjCommand would.
     */

    TclGetNamespaceForQualName(interp, newName, NULL,
	    TCL_CREATE_NS_IF_UNKNOWN, &newNsPtr, &dummy1, &dummy2, &newTail);

    if ((newNsPtr == NULL) || (newTail == NULL)) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"can't rename to \"%s\": bad command name", newName));
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "COMMAND", (char *)NULL);
	result = TCL_ERROR;
	goto done;
    }
    if (Tcl_FindHashEntry(&newNsPtr->cmdTable, newTail) != NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"can't rename to \"%s\": command already exists", newName));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "RENAME",
		"TARGET_EXISTS", (char *)NULL);
	result = TCL_ERROR;
	goto done;
    }

    /*

    Tcl_ResetResult(interp);

    /*
     * If the interpreter has been deleted, return an error.
     */

    if (iPtr->flags & DELETED) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"attempt to call eval in deleted interpreter", -1));
	Tcl_SetErrorCode(interp, "TCL", "IDELETE",
		"attempt to call eval in deleted interpreter", (char *)NULL);
	return TCL_ERROR;
    }

    if (iPtr->execEnvPtr->rewind) {
	return TCL_ERROR;
    }

     * probably because of an infinite loop somewhere.
     */

    if ((iPtr->numLevels <= iPtr->maxNestingDepth)) {
	return TCL_OK;
    }

    Tcl_SetObjResult(interp, Tcl_NewStringObj(
	    "too many nested evaluations (infinite loop?)", -1));
    Tcl_SetErrorCode(interp, "TCL", "LIMIT", "STACK", (char *)NULL);
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *

	} else {
	    id = "ICANCEL";
	    if (length == 0) {
		message = "eval canceled";
	    }
	}

	Tcl_SetObjResult(interp, Tcl_NewStringObj(message, -1));
	Tcl_SetErrorCode(interp, "TCL", "CANCEL", id, message, (char *)NULL);
    }

    /*
     * Return TCL_ERROR to the caller (not necessarily just the Tcl core
     * itself) that indicates further processing of the script or command in
     * progress should halt gracefully and as soon as possible.

	    cmdPtr = preCmdPtr;
	} else if (flags & TCL_EVAL_NORESOLVE) {
	    /*
	     * When it's been deleted, and we're told not to attempt resolving
	     * it ourselves, all we can do is raise an error.
	     */

	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "attempt to invoke a deleted command"));
	    Tcl_SetErrorCode(interp, "TCL", "EVAL", "DELETEDCOMMAND", (char *)NULL);
	    return TCL_ERROR;
	}
    }
    if (cmdPtr == NULL) {
	cmdPtr = TEOV_LookupCmdFromObj(interp, objv[0], lookupNsPtr);
	if (!cmdPtr) {

     *
     * In this case we worry a bit less about recursion for now, and call the
     * "blocking" interface.
     */

    cmdPtr = TEOV_LookupCmdFromObj(interp, newObjv[0], lookupNsPtr);
    if (cmdPtr == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"invalid command name \"%s\"", TclGetString(objv[0])));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "COMMAND",
		TclGetString(objv[0]), (char *)NULL);

	/*
	 * Release any resources we locked and allocated during the handler
	 * call.
	 */

				 * result code was returned. */
    int returnCode)		/* The unexpected result code. */
{
    char buf[TCL_INTEGER_SPACE];

    Tcl_ResetResult(interp);
    if (returnCode == TCL_BREAK) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"invoked \"break\" outside of a loop", -1));
    } else if (returnCode == TCL_CONTINUE) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"invoked \"continue\" outside of a loop", -1));
    } else {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"command returned bad code: %d", returnCode));
    }
    snprintf(buf, sizeof(buf), "%d", returnCode);
    Tcl_SetErrorCode(interp, "TCL", "UNEXPECTED_RESULT_CODE", buf, (char *)NULL);
}

/*
 *---------------------------------------------------------------------------

				 * TCL_INVOKE_HIDDEN, TCL_INVOKE_NO_UNKNOWN,
				 * or TCL_INVOKE_NO_TRACEBACK. */
{
    if (interp == NULL) {
	return TCL_ERROR;
    }
    if ((objc < 1) || (objv == NULL)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"illegal argument vector", -1));
	return TCL_ERROR;
    }
    if ((flags & TCL_INVOKE_HIDDEN) == 0) {
	Tcl_Panic("TclObjInvoke: called without TCL_INVOKE_HIDDEN");
    }
    return Tcl_NRCallObjProc(interp, TclNRInvoke, NULL, objc, objv);
}

    cmdName = TclGetString(objv[0]);
    hTblPtr = iPtr->hiddenCmdTablePtr;
    if (hTblPtr != NULL) {
	hPtr = Tcl_FindHashEntry(hTblPtr, cmdName);
    }
    if (hPtr == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"invalid hidden command name \"%s\"", cmdName));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "HIDDENTOKEN", cmdName,
		(char *)NULL);
	return TCL_ERROR;
    }
    cmdPtr = (Command *) Tcl_GetHashValue(hPtr);

    /*

	    return TCL_ERROR;
	}
	Tcl_SetObjResult(interp, Tcl_NewBignumObj(&root));
    }
    return TCL_OK;

  negarg:
    Tcl_SetObjResult(interp, Tcl_NewStringObj(
	    "square root of negative argument", -1));
    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
	    "domain error: argument not in valid range", (char *)NULL);
    return TCL_ERROR;
}

static int
ExprSqrtFunc(

    case FP_SUBNORMAL:
	TclNewLiteralStringObj(objPtr, "subnormal");
	break;
    case FP_ZERO:
	TclNewLiteralStringObj(objPtr, "zero");
	break;
    default:
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"unable to classify number: %f", d));
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, objPtr);
    return TCL_OK;
}

/*

    while (tail > name + 1) {
	tail--;
	if (*tail == ':' && tail[-1] == ':') {
	    name = tail + 1;
	    break;
	}
    }
    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "%s arguments for math function \"%s\"",
	    (found < expected ? "not enough" : "too many"), name));
    Tcl_SetErrorCode(interp, "TCL", "WRONGARGS", (char *)NULL);
}

#ifdef USE_DTRACE
/*
 *----------------------------------------------------------------------
 *

    if (objc < 1) {
	Tcl_WrongNumArgs(interp, 1, objv, "?command? ?arg ...?");
	return TCL_ERROR;
    }

    if (!(iPtr->varFramePtr->isProcCallFrame & 1)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"tailcall can only be called from a proc, lambda or method", -1));
	Tcl_SetErrorCode(interp, "TCL", "TAILCALL", "ILLEGAL", (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Invocation without args just clears a scheduled tailcall; invocation
     * with an argument replaces any previously scheduled tailcall.

    if (objc > 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "?returnValue?");
	return TCL_ERROR;
    }

    if (!corPtr) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"yield can only be called in a coroutine", -1));
	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ILLEGAL_YIELD", (char *)NULL);
	return TCL_ERROR;
    }

    if (objc == 2) {
	Tcl_SetObjResult(interp, objv[1]);
    }

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "command ?arg ...?");
	return TCL_ERROR;
    }

    if (!corPtr) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"yieldto can only be called in a coroutine", -1));
	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ILLEGAL_YIELD", (char *)NULL);
	return TCL_ERROR;
    }

    if (((Namespace *) nsPtr)->flags & NS_DYING) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"yieldto called in deleted namespace", -1));
	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "YIELDTO_IN_DELETED",
		(char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Add the tailcall in the caller env, then just yield.

			corPtr->yieldPtr = NULL;
			break;
		    }
		}
	    }
	    iPtr->execEnvPtr = corPtr->eePtr;

	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "cannot yield: C stack busy", -1));
	    Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "CANT_YIELD",
		    (char *)NULL);
	    return TCL_ERROR;
	}

	void *type = data[1];
	if (type == CORO_ACTIVATE_YIELD) {

    /*
     * Look up the coroutine.
     */

    cmdPtr = (Command *) Tcl_GetCommandFromObj(interp, objv[1]);
    if ((!cmdPtr) || (cmdPtr->nreProc != TclNRInterpCoroutine)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"can only get coroutine type of a coroutine", -1));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "COROUTINE",
		TclGetString(objv[1]), (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * An active coroutine is "active". Can't tell what it might do in the
     * future.
     */

    corPtr = (CoroutineData *) cmdPtr->objClientData;
    if (!COR_IS_SUSPENDED(corPtr)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("active", -1));
	return TCL_OK;
    }

    /*
     * Inactive coroutines are classified by the (effective) command used to
     * suspend them, which matters when you're injecting a probe.
     */

    switch (corPtr->nargs) {
    case COROUTINE_ARGUMENTS_SINGLE_OPTIONAL:
	Tcl_SetObjResult(interp, Tcl_NewStringObj("yield", -1));
	return TCL_OK;
    case COROUTINE_ARGUMENTS_ARBITRARY:
	Tcl_SetObjResult(interp, Tcl_NewStringObj("yieldto", -1));
	return TCL_OK;
    default:
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"unknown coroutine type", -1));
	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "BAD_TYPE", (char *)NULL);
	return TCL_ERROR;
    }
}

/*
 *----------------------------------------------------------------------

    /*
     * How to get a coroutine from its handle.
     */

    Command *cmdPtr = (Command *) Tcl_GetCommandFromObj(interp, objPtr);

    if ((!cmdPtr) || (cmdPtr->nreProc != TclNRInterpCoroutine)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(errMsg, -1));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "COROUTINE",
		TclGetString(objPtr), (char *) NULL);
	return NULL;
    }
    return (CoroutineData *) cmdPtr->objClientData;
}

    corPtr = GetCoroutineFromObj(interp, objv[1],
	    "can only inject a command into a coroutine");
    if (!corPtr) {
	return TCL_ERROR;
    }
    if (!COR_IS_SUSPENDED(corPtr)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"can only inject a command into a suspended coroutine", -1));
	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ACTIVE", (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Add the callback to the coro's execEnv, so that it is the first thing
     * to happen when the coro is resumed.

    corPtr = GetCoroutineFromObj(interp, objv[1],
	    "can only inject a probe command into a coroutine");
    if (!corPtr) {
	return TCL_ERROR;
    }
    if (!COR_IS_SUSPENDED(corPtr)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"can only inject a probe command into a suspended coroutine",
		-1));
	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ACTIVE", (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Add the callback to the coro's execEnv, so that it is the first thing
     * to happen when the coro is resumed.

    corPtr = GetCoroutineFromObj(interp, objv[1],
	    "can only inject a command into a coroutine");
    if (!corPtr) {
	return TCL_ERROR;
    }
    if (!COR_IS_SUSPENDED(corPtr)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"can only inject a command into a suspended coroutine", -1));
	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ACTIVE", (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Add the callback to the coro's execEnv, so that it is the first thing
     * to happen when the coro is resumed.

    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    CoroutineData *corPtr = (CoroutineData *) clientData;

    if (!COR_IS_SUSPENDED(corPtr)) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"coroutine \"%s\" is already running",
		TclGetString(objv[0])));
	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "BUSY", (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Parse all the arguments to work out what to feed as the result of the
     * [yield]. TRICKY POINT: objc==0 happens here! It occurs when a coroutine

	} else if (objc > 2) {
	    Tcl_WrongNumArgs(interp, 1, objv, "?arg?");
	    return TCL_ERROR;
	}
	break;
    default:
	if (corPtr->nargs + 1 != objc) {
	    Tcl_SetObjResult(interp,
		    Tcl_NewStringObj("wrong coro nargs; how did we get here? "
		    "not implemented!", -1));
	    Tcl_SetErrorCode(interp, "TCL", "WRONGARGS", (char *)NULL);
	    return TCL_ERROR;
	}
	/* fallthrough */
    case COROUTINE_ARGUMENTS_ARBITRARY:
	if (objc > 1) {
	    Tcl_SetObjResult(interp, Tcl_NewListObj(objc - 1, objv + 1));

    }

    procName = TclGetString(objv[1]);
    TclGetNamespaceForQualName(interp, procName, inNsPtr, 0,
	    &nsPtr, &altNsPtr, &cxtNsPtr, &simpleName);

    if (nsPtr == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"can't create procedure \"%s\": unknown namespace",
		procName));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "NAMESPACE", (char *)NULL);
	return TCL_ERROR;
    }
    if (simpleName == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"can't create procedure \"%s\": bad procedure name",
		procName));
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "COMMAND", procName, (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * We ARE creating the coroutine command: allocate the corresponding
     * struct and create the corresponding command.

    if (bytes && numBytesPtr) {
	if (numBytes > INT_MAX) {
	    /* Caller asked for numBytes to be written to an int, but the
	     * value is outside the int range. */

	    if (interp) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"byte sequence length exceeds INT_MAX", -1));
		Tcl_SetErrorCode(interp, "TCL", "API", "OUTDATED", (void *)NULL);
	    }
	    return NULL;
	} else {
	    *(int *)numBytesPtr = (int) numBytes;
	}
    }

	int ch;
	int count = TclUtfToUniChar(src, &ch);

	if (ch > 255) {
	    proper = 0;
	    if (demandProper) {
		if (interp) {
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			    "expected byte sequence but character %"
			    TCL_Z_MODIFIER "u was '%1s' (U+%06X)",
			    dst - byteArrayPtr->bytes, src, ch));
		    Tcl_SetErrorCode(interp, "TCL", "VALUE", "BYTES", (void *)NULL);
		}
		Tcl_Free(byteArrayPtr);
		*byteArrayPtrPtr = NULL;
		return proper;
	    }
	}

		if (TclListObjLength(interp, objv[arg], &listc) != TCL_OK) {
		    return TCL_ERROR;
		}

		if (count == BINARY_ALL) {
		    count = listc;
		} else if (count > listc) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "number of elements in list does not match count",
			    -1));
		    return TCL_ERROR;
		}
		if (TclListObjGetElements(interp, objv[arg], &listc,
			&listv) != TCL_OK) {
		    return TCL_ERROR;
		}
		arg++;
	    }
	    offset += count*size;
	    break;

	case 'x':
	    if (count == BINARY_ALL) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"cannot use \"*\" in format string with \"x\"", -1));
		return TCL_ERROR;
	    } else if (count == BINARY_NOCOUNT) {
		count = 1;
	    }
	    offset += count;
	    break;
	case 'X':

	}
    }
    Tcl_SetObjResult(interp, resultPtr);
    return TCL_OK;

 badValue:
    Tcl_ResetResult(interp);
    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "expected %s string but got \"%s\" instead",
	    errorString, errorValue));
    return TCL_ERROR;

 badCount:
    errorString = "missing count for \"@\" field specifier";
    goto error;

 badIndex:
    errorString = "not enough arguments for all format specifiers";
    goto error;

 badField:
    {
	Tcl_UniChar ch = 0;
	char buf[5] = "";

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

 error:
    Tcl_SetObjResult(interp, Tcl_NewStringObj(errorString, -1));
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * BinaryScanCmd --

 badField:
    {
	Tcl_UniChar ch = 0;
	char buf[5] = "";

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

 error:
    Tcl_SetObjResult(interp, Tcl_NewStringObj(errorString, -1));
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * GetFormatSpec --

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

	}
	switch (index) {
	case OPT_MAXLEN:
	    if (TclGetWideIntFromObj(interp, objv[i + 1], &maxlen) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (maxlen < 0) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"line length out of range", -1));
		Tcl_SetErrorCode(interp, "TCL", "BINARY", "ENCODE",
			"LINE_LENGTH", (void *)NULL);
		return TCL_ERROR;
	    }
	    break;
	case OPT_WRAPCHAR:
	    wrapchar = (const char *)Tcl_GetBytesFromObj(NULL,

	switch (index) {
	case OPT_MAXLEN:
	    if (Tcl_GetIntFromObj(interp, objv[i + 1],
		    &lineLength) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if (lineLength < 5 || lineLength > 85) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"line length out of range", -1));
		Tcl_SetErrorCode(interp, "TCL", "BINARY", "ENCODE",
			"LINE_LENGTH", (void *)NULL);
		return TCL_ERROR;
	    }
	    lineLength = ((lineLength - 1) & -4) + 1; /* 5, 9, 13 ... */
	    break;
	case OPT_WRAPCHAR:
	    wrapchar = (const unsigned char *)TclGetStringFromObj(
		    objv[i + 1], &wrapcharlen);
	    {
		const unsigned char *p = wrapchar;
		Tcl_Size numBytes = wrapcharlen;

		while (numBytes) {
		    switch (*p) {
			case '\t':
			case '\v':
			case '\f':
			case '\r':

			    p++; numBytes--;
			    continue;
			case '\n':
			    numBytes--;
			    break;
			default:
			badwrap:
			    Tcl_SetObjResult(interp, Tcl_NewStringObj(
				    "invalid wrapchar; will defeat decoding",
				    -1));
			    Tcl_SetErrorCode(interp, "TCL", "BINARY",
				    "ENCODE", "WRAPCHAR", (void *)NULL);
			    return TCL_ERROR;
		    }
		}
		if (numBytes) {
		    goto badwrap;





		}
	    }
	    break;
	}
    }

    /*

	goto shortUu;
    }
    Tcl_SetByteArrayLength(resultObj, cursor - begin);
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;

  shortUu:
    Tcl_SetObjResult(interp, Tcl_ObjPrintf("short uuencode data"));
    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "SHORT", (void *)NULL);
    TclDecrRefCount(resultObj);
    return TCL_ERROR;

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

	 * valid member of the base64 alphabet, it could be the lead byte
	 * of a multi-byte character. */

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

    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "invalid base64 character \"%c\" (U+%06X) at position %"
	    TCL_Z_MODIFIER "u", ucs4, ucs4, data - datastart - 1));
    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "INVALID", (void *)NULL);
    TclDecrRefCount(resultObj);
    return TCL_ERROR;
}

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

	fileName = Tcl_TranslateFileName(interp, TclGetString(objv[2]), &buffer);
	if (fileName == NULL) {
	    return TCL_ERROR;
	}
	result = Tcl_DumpActiveMemory(fileName);
	Tcl_DStringFree(&buffer);
	if (result != TCL_OK) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf("error accessing %s: %s",
                    TclGetString(objv[2]), Tcl_PosixError(interp)));
	    return TCL_ERROR;
	}
	return TCL_OK;
    }
    if (strcmp(TclGetString(objv[1]),"break_on_malloc") == 0) {
	Tcl_WideInt value;
	if (objc != 3) {
	    goto argError;
	}
	if (TclGetWideIntFromObj(interp, objv[2], &value) != TCL_OK) {
	    return TCL_ERROR;
	}
	break_on_malloc = value;
	return TCL_OK;
    }
    if (strcmp(TclGetString(objv[1]),"info") == 0) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"%-25s %10" TCL_Z_MODIFIER "u\n%-25s %10" TCL_Z_MODIFIER "u\n%-25s %10" TCL_Z_MODIFIER "u\n%-25s %10" TCL_Z_MODIFIER "u\n%-25s %10" TCL_Z_MODIFIER "u\n%-25s %10" TCL_Z_MODIFIER "u\n",
		"total mallocs", total_mallocs, "total frees", total_frees,
		"current packets allocated", current_malloc_packets,
		"current bytes allocated", current_bytes_malloced,
		"maximum packets allocated", maximum_malloc_packets,
		"maximum bytes allocated", maximum_bytes_malloced));
	return TCL_OK;
    }
    if (strcmp(TclGetString(objv[1]), "init") == 0) {
	if (objc != 3) {
	    goto bad_suboption;
	}
	init_malloced_bodies = (strcmp(TclGetString(objv[2]),"on") == 0);
	return TCL_OK;
    }
    if (strcmp(TclGetString(objv[1]), "objs") == 0) {
	if (objc != 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "file");
	    return TCL_ERROR;
	}
	fileName = Tcl_TranslateFileName(interp, TclGetString(objv[2]), &buffer);
	if (fileName == NULL) {
	    return TCL_ERROR;
	}
	fileP = fopen(fileName, "w");
	if (fileP == NULL) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
                    "cannot open output file: %s",
                    Tcl_PosixError(interp)));
	    return TCL_ERROR;
	}
	TclDbDumpActiveObjects(fileP);
	fclose(fileP);
	Tcl_DStringFree(&buffer);
	return TCL_OK;
    }

	if (objc != 3) {
	    goto bad_suboption;
	}
	validate_memory = (strcmp(TclGetString(objv[2]),"on") == 0);
	return TCL_OK;
    }

    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
            "bad option \"%s\": should be active, break_on_malloc, info, "
            "init, objs, onexit, tag, trace, trace_on_at_malloc, or validate",
            TclGetString(objv[1])));
    return TCL_ERROR;

  argError:
    Tcl_WrongNumArgs(interp, 2, objv, "count");
    return TCL_ERROR;

  bad_suboption:

	/* if locale was not yet used */
	if (!(opts->flags & CLF_LOCALE_USED)) {
	    opts->localeObj = NormLocaleObj(dataPtr, opts->interp,
		    opts->localeObj, &opts->mcDictObj);

	    if (opts->localeObj == NULL) {
		Tcl_SetObjResult(opts->interp, Tcl_NewStringObj(
			"locale not specified and no default locale set",
			TCL_AUTO_LENGTH));
		Tcl_SetErrorCode(opts->interp, "CLOCK", "badOption", (char *)NULL);
		return NULL;
	    }
	    opts->flags |= CLF_LOCALE_USED;

	    /* check locale literals already available (on demand creation) */
	    if (dataPtr->mcLiterals == NULL) {

    }
    dict = objv[1];
    if (Tcl_DictObjGet(interp, dict, dataPtr->literals[LIT_LOCALSECONDS],
	    &secondsObj)!= TCL_OK) {
	return TCL_ERROR;
    }
    if (secondsObj == NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("key \"localseconds\" not "
		"found in dictionary", TCL_AUTO_LENGTH));
	return TCL_ERROR;
    }
    if ((TclGetWideIntFromObj(interp, secondsObj, &fields.localSeconds) != TCL_OK)
	    || (TclGetIntFromObj(interp, objv[3], &changeover) != TCL_OK)
	    || ConvertLocalToUTC(dataPtr, interp, &fields, objv[2], changeover)) {
	return TCL_ERROR;
    }

{
    Tcl_Obj *value = NULL;

    if (Tcl_DictObjGet(interp, dict, key, &value) != TCL_OK) {
	return TCL_ERROR;
    }
    if (value == NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"expected key(s) not found in dictionary", TCL_AUTO_LENGTH));
	return TCL_ERROR;
    }
    return Tcl_GetIndexFromObj(interp, value, eras, "era", TCL_EXACT, storePtr);
}

static int
FetchIntField(
    Tcl_Interp *interp,
    Tcl_Obj *dict,
    Tcl_Obj *key,
    int *storePtr)
{
    Tcl_Obj *value = NULL;

    if (Tcl_DictObjGet(interp, dict, key, &value) != TCL_OK) {
	return TCL_ERROR;
    }
    if (value == NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"expected key(s) not found in dictionary", TCL_AUTO_LENGTH));
	return TCL_ERROR;
    }
    return TclGetIntFromObj(interp, value, storePtr);
}

static int
ClockGetjuliandayfromerayearmonthdayObjCmd(

    /*
     * If conversion fails, report an error.
     */

    if (localErrno != 0
	    || (fields->seconds == -1 && timeVal.tm_yday == -1)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"time value too large/small to represent", TCL_AUTO_LENGTH));
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------

    /*
     * Use 'localtime' to determine local year, month, day, time of day.
     */

    tock = (time_t) fields->seconds;
    if ((Tcl_WideInt) tock != fields->seconds) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"number too large to represent as a Posix time", TCL_AUTO_LENGTH));
	Tcl_SetErrorCode(interp, "CLOCK", "argTooLarge", (char *)NULL);
	return TCL_ERROR;
    }
    TzsetIfNecessary();
    timeVal = ThreadSafeLocalTime(&tock);
    if (timeVal == NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"localtime failed (clock value may be too "
		"large/small to represent)", TCL_AUTO_LENGTH));
	Tcl_SetErrorCode(interp, "CLOCK", "localtimeFailed", (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Fill in the date in 'fields' and use it to derive Julian Day.
     */

	Tcl_WCharToUtfDString(varValue, -1, &ds);
	Tcl_DStringResult(interp, &ds);
    }
#else
    varName = TclGetString(objv[1]);
    varValue = getenv(varName);
    if (varValue != NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		varValue, TCL_AUTO_LENGTH));
    }
#endif
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------

	    goto badOptionMsg;
	}
	/* if already specified */
	if (saw & (1 << optionIndex)) {
	    if (operation != CLC_OP_SCN && optionIndex == CLC_ARGS_BASE) {
		goto badOptionMsg;
	    }
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "bad option \"%s\": doubly present",
		    TclGetString(objv[i])));
	    goto badOption;
	}
	switch (optionIndex) {
	case CLC_ARGS_FORMAT:
	    if (operation == CLC_OP_ADD) {
		goto badOptionMsg;
	    }

    /*
     * Check options.
     */

    if ((saw & (1 << CLC_ARGS_GMT))
	    && (saw & (1 << CLC_ARGS_TIMEZONE))) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"cannot use -gmt and -timezone in same call", TCL_AUTO_LENGTH));
	Tcl_SetErrorCode(interp, "CLOCK", "gmtWithTimezone", (char *)NULL);
	return TCL_ERROR;
    }
    if (gmtFlag) {
	opts->timezoneObj = dataPtr->literals[LIT_GMT];
    } else if (opts->timezoneObj == NULL
	    || TclGetString(opts->timezoneObj) == NULL

	memcpy(&dataPtr->lastBase.date, date, ClockCacheableDateFieldsSize);
	TclSetObjRef(dataPtr->lastBase.timezoneObj, opts->timezoneObj);
    }

    return TCL_OK;

  badOptionMsg:
    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "bad option \"%s\": must be %s",
	    TclGetString(objv[i]), syntax));

  badOption:
    Tcl_SetErrorCode(interp, "CLOCK", "badOption",
	    (i < objc) ? TclGetString(objv[i]) : (char *)NULL, (char *)NULL);
    return TCL_ERROR;
}


    /* If free scan */
    if (opts.formatObj == NULL) {
	/* Use compiled version of FreeScan - */

	/* [SB] TODO: Perhaps someday we'll localize the legacy code. Right now,
	 * it's not localized. */
	if (opts.localeObj != NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "legacy [clock scan] does not support -locale", TCL_AUTO_LENGTH));
	    Tcl_SetErrorCode(interp, "CLOCK", "flagWithLegacyFormat", (char *)NULL);
	    ret = TCL_ERROR;
	    goto done;
	}
	ret = ClockFreeScan(&yy, objv[1], &opts);
    } else {
	/* Use compiled version of Scan - */

    }

    /* some overflow checks */
    if (info->flags & CLF_JULIANDAY) {
	double curJDN = (double)yydate.julianDay
		+ ((double)yySecondOfDay - SECONDS_PER_DAY/2) / SECONDS_PER_DAY;
	if (curJDN > opts->dataPtr->maxJDN) {
	    Tcl_SetObjResult(opts->interp, Tcl_NewStringObj(
		    "requested date too large to represent", TCL_AUTO_LENGTH));
	    Tcl_SetErrorCode(opts->interp, "CLOCK", "dateTooLarge", (char *)NULL);
	    return TCL_ERROR;
	}
    }

    /* Local seconds to UTC (stored in yydate.seconds) */

	    goto error;
	}
    }

    return TCL_OK;

  error:
    Tcl_SetObjResult(opts->interp, Tcl_ObjPrintf(
	    "unable to convert input string: %s", errMsg));
    Tcl_SetErrorCode(opts->interp, "CLOCK", "invInpStr", errCode, (char *)NULL);
    return TCL_ERROR;
}

/*----------------------------------------------------------------------
 *
 * ClockFreeScan --

     * Notice that many yy-defines point to values in the "info" or "date"
     * structure, e. g. yySecondOfDay -> info->date.secondOfDay or
     *			yyMonth -> info->date.month (same as yydate.month)
     */
    yyInput = TclGetString(strObj);

    if (TclClockFreeScan(interp, info) != TCL_OK) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"unable to convert date-time string \"%s\": %s",
		TclGetString(strObj), Tcl_GetString(Tcl_GetObjResult(interp))));
	goto done;
    }

    /*
     * If the caller supplied a date in the string, update the date with
     * the value. If the caller didn't specify a time with the date, default to
     * midnight.

	fss->objRefCount++;
	ObjClockFmtScn(objPtr) = fss;
    }

    Tcl_MutexUnlock(&ClockFmtMutex);

    if (fss == NULL && interp != NULL) {
	Tcl_AppendResult(interp, "retrieve clock format failed \"",
		strFmt ? strFmt : "", "\"", NULL);
	Tcl_SetErrorCode(interp, "TCL", "EINVAL", (char *)NULL);
    }

    return fss;
}

/*

	    return TCL_RETURN;
	}

	if (val == 0) {
	    val = 7;
	}
	if (val > 7) {
	    Tcl_SetObjResult(opts->interp, Tcl_NewStringObj(
		    "day of week is greater than 7", TCL_AUTO_LENGTH));
	    Tcl_SetErrorCode(opts->interp, "CLOCK", "badDayOfWeek", (char *)NULL);
	    return TCL_ERROR;
	}
	info->date.dayOfWeek = val;
	yyInput++;
	return TCL_OK;
    }

    ret = TCL_OK;
  done:
    return ret;

    /* Error case reporting. */

  overflow:
    Tcl_SetObjResult(opts->interp, Tcl_NewStringObj(
	    "integer value too large to represent", TCL_AUTO_LENGTH));
    Tcl_SetErrorCode(opts->interp, "CLOCK", "dateTooLarge", (char *)NULL);
    goto done;

  not_match:
#if 1
    Tcl_SetObjResult(opts->interp, Tcl_NewStringObj(
	    "input string does not match supplied format", TCL_AUTO_LENGTH));
#else
    /* to debug where exactly scan breaks */
    Tcl_SetObjResult(opts->interp, Tcl_ObjPrintf(
	    "input string \"%s\" does not match supplied format \"%s\","
	    " locale \"%s\" - token \"%s\"",
	    info->dateStart, HashEntry4FmtScn(fss)->key.string,
	    TclGetString(opts->localeObj),
	    tok && tok->tokWord.start ? tok->tokWord.start : "NULL"));
#endif
    Tcl_SetErrorCode(opts->interp, "CLOCK", "badInputString", (char *)NULL);
    goto done;
}

#define FrmResultIsAllocated(dateFmt) \
    (dateFmt->resEnd - dateFmt->resMem > MIN_FMT_RESULT_BLOCK_ALLOC)

	Tcl_DString ds;
	result = Tcl_UtfToExternalDStringEx(NULL, TCLFSENCODING, TclGetString(dir), -1, 0, &ds, NULL);
	Tcl_DStringFree(&ds);
	if (result == TCL_OK) {
	    result = Tcl_FSChdir(dir);
	}
	if (result != TCL_OK) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "couldn't change working directory to \"%s\": %s",
		    TclGetString(dir), Tcl_PosixError(interp)));
	    result = TCL_ERROR;
	}
    }
    if (objc != 2) {
	Tcl_DecrRefCount(dir);
    }
    return result;

    if (objc == 1) {
	Tcl_SetObjResult(interp, Tcl_GetEncodingSearchPath());
	return TCL_OK;
    }

    dirListObj = objv[1];
    if (Tcl_SetEncodingSearchPath(dirListObj) == TCL_ERROR) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"expected directory list but got \"%s\"",
		TclGetString(dirListObj)));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "ENCODING", "BADPATH",
		(void *)NULL);
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, dirListObj);
    return TCL_OK;
}

    Tcl_Obj* const objv[])  /* Vector of command line args */
{
    if (objc > 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "?encoding?");
	return TCL_ERROR;
    }
    if (objc == 1) {
	Tcl_SetObjResult(interp,
		Tcl_NewStringObj(Tcl_GetEncodingName(NULL), -1));
    } else {
	return Tcl_SetSystemEncoding(interp, TclGetString(objv[1]));
    }
    return TCL_OK;
}

/*

    }
    if (GetStatBuf(interp, objv[1], Tcl_FSStat, &buf) != TCL_OK) {
	return TCL_ERROR;
    }
#if defined(_WIN32)
    /* We use a value of 0 to indicate the access time not available */
    if (Tcl_GetAccessTimeFromStat(&buf) == 0) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"could not get access time for file \"%s\"",
		TclGetString(objv[1])));
	return TCL_ERROR;
    }
#endif

    if (objc == 3) {
	/*
	 * Need separate variable for reading longs from an object on 64-bit
	 * platforms. [Bug 698146]
	 */

	Tcl_WideInt newTime;

	if (TclGetWideIntFromObj(interp, objv[2], &newTime) != TCL_OK) {
	    return TCL_ERROR;
	}

	tval.actime = newTime;
	tval.modtime = Tcl_GetModificationTimeFromStat(&buf);

	if (Tcl_FSUtime(objv[1], &tval) != 0) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "could not set access time for file \"%s\": %s",
		    TclGetString(objv[1]), Tcl_PosixError(interp)));
	    return TCL_ERROR;
	}

	/*
	 * Do another stat to ensure that the we return the new recognized
	 * atime - hopefully the same as the one we sent in. However, fs's
	 * like FAT don't even know what atime is.

    }
    if (GetStatBuf(interp, objv[1], Tcl_FSStat, &buf) != TCL_OK) {
	return TCL_ERROR;
    }
#if defined(_WIN32)
    /* We use a value of 0 to indicate the modification time not available */
    if (Tcl_GetModificationTimeFromStat(&buf) == 0) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"could not get modification time for file \"%s\"",
		TclGetString(objv[1])));
	return TCL_ERROR;
    }
#endif
    if (objc == 3) {
	/*
	 * Need separate variable for reading longs from an object on 64-bit
	 * platforms. [Bug 698146]
	 */

	Tcl_WideInt newTime;

	if (TclGetWideIntFromObj(interp, objv[2], &newTime) != TCL_OK) {
	    return TCL_ERROR;
	}

	tval.actime = Tcl_GetAccessTimeFromStat(&buf);
	tval.modtime = newTime;

	if (Tcl_FSUtime(objv[1], &tval) != 0) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "could not set modification time for file \"%s\": %s",
		    TclGetString(objv[1]), Tcl_PosixError(interp)));
	    return TCL_ERROR;
	}

	/*
	 * Do another stat to ensure that the we return the new recognized
	 * mtime - hopefully the same as the one we sent in.
	 */

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "name");
	return TCL_ERROR;
    }
    if (GetStatBuf(interp, objv[1], Tcl_FSLstat, &buf) != TCL_OK) {
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, Tcl_NewStringObj(
	    GetTypeFromMode((unsigned short) buf.st_mode), -1));
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * FileAttrSizeCmd --

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "name");
	return TCL_ERROR;
    }
    fsInfo = Tcl_FSFileSystemInfo(objv[1]);
    if (fsInfo == NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("unrecognised path", -1));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "FILESYSTEM",
		TclGetString(objv[1]), (void *)NULL);
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, fsInfo);
    return TCL_OK;
}

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "name");
	return TCL_ERROR;
    }
    res = Tcl_FSSplitPath(objv[1], (Tcl_Size *)NULL);
    if (res == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"could not read \"%s\": no such file or directory",
		TclGetString(objv[1])));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "PATHSPLIT", "NONESUCH",
		(void *)NULL);
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, res);
    return TCL_OK;
}

	case TCL_PLATFORM_UNIX:
	    separator = "/";
	    break;
	case TCL_PLATFORM_WINDOWS:
	    separator = "\\";
	    break;
	}
	Tcl_SetObjResult(interp, Tcl_NewStringObj(separator, 1));
    } else {
	Tcl_Obj *separatorObj = Tcl_FSPathSeparator(objv[1]);

	if (separatorObj == NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "unrecognised path", -1));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "FILESYSTEM",
		    TclGetString(objv[1]), (void *)NULL);
	    return TCL_ERROR;
	}
	Tcl_SetObjResult(interp, separatorObj);
    }
    return TCL_OK;

    } else {
	status = statProc(pathPtr, statPtr);
    }
    Tcl_DStringFree(&ds);

    if (status < 0) {
	if (interp != NULL) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "could not read \"%s\": %s",
		    TclGetString(pathPtr), Tcl_PosixError(interp)));
	}
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*

	result = TclListObjLength(interp, statePtr->vCopyList[i],
	    &statePtr->varcList[i]);
	if (result != TCL_OK) {
	    result = TCL_ERROR;
	    goto done;
	}
	if (statePtr->varcList[i] < 1) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"%s varlist is empty",
		(statePtr->resultList != NULL ? "lmap" : "foreach")));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION",
		(statePtr->resultList != NULL ? "LMAP" : "FOREACH"),
		"NEEDVARS", (void *)NULL);
	    result = TCL_ERROR;
	    goto done;
	}
	TclListObjGetElements(NULL, statePtr->vCopyList[i],
	    &statePtr->varcList[i], &statePtr->varvList[i]);

	/* Values */

    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    Tcl_Obj *boolObj;

    if (objc <= 1) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"wrong # args: no expression after \"%s\" argument",
		TclGetString(objv[0])));
	Tcl_SetErrorCode(interp, "TCL", "WRONGARGS", (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * At this point, objv[1] refers to the main expression to test. The
     * arguments after the expression must be "then" (optional) and a script

	 * At this point in the loop, objv and objc refer to an expression to
	 * test, either for the main expression or an expression following an
	 * "elseif". The arguments after the expression must be "then"
	 * (optional) and a script to execute if the expression is true.
	 */

	if (i >= objc) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "wrong # args: no expression after \"%s\" argument",
		    clause));
	    Tcl_SetErrorCode(interp, "TCL", "WRONGARGS", (char *)NULL);
	    return TCL_ERROR;
	}
	if (!thenScriptIndex) {
	    TclNewObj(boolObj);
	    Tcl_NRAddCallback(interp, IfConditionCallback, data[0], data[1],
		    INT2PTR(i), boolObj);

    if (strcmp(clause, "else") == 0) {
	i++;
	if (i >= objc) {
	    goto missingScript;
	}
    }
    if (i < objc - 1) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"wrong # args: extra words after \"else\" clause in \"if\" command",
		-1));
	Tcl_SetErrorCode(interp, "TCL", "WRONGARGS", (char *)NULL);
	return TCL_ERROR;
    }
    if (thenScriptIndex) {
	/*
	 * TIP #280. Make invoking context available to branch/else.
	 */

	return TclNREvalObjEx(interp, objv[thenScriptIndex], 0,
		iPtr->cmdFramePtr, thenScriptIndex);
    }
    return TclNREvalObjEx(interp, objv[i], 0, iPtr->cmdFramePtr, i);

  missingScript:
    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "wrong # args: no script following \"%s\" argument",
	    TclGetString(objv[i-1])));
    Tcl_SetErrorCode(interp, "TCL", "WRONGARGS", (char *)NULL);
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *

	Tcl_WrongNumArgs(interp, 1, objv, "procname");
	return TCL_ERROR;
    }

    name = TclGetString(objv[1]);
    procPtr = TclFindProc(iPtr, name);
    if (procPtr == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"\"%s\" isn't a procedure", name));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "PROCEDURE", name, (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Build a return list containing the arguments.
     */

	Tcl_WrongNumArgs(interp, 1, objv, "procname");
	return TCL_ERROR;
    }

    name = TclGetString(objv[1]);
    procPtr = TclFindProc(iPtr, name);
    if (procPtr == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"\"%s\" isn't a procedure", name));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "PROCEDURE", name, (char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Here we used to return procPtr->bodyPtr, except when the body was
     * bytecompiled - in that case, the return was a copy of the body's string

    }

    procName = TclGetString(objv[1]);
    argName = TclGetString(objv[2]);

    procPtr = TclFindProc(iPtr, procName);
    if (procPtr == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"\"%s\" isn't a procedure", procName));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "PROCEDURE", procName,
		(char *)NULL);
	return TCL_ERROR;
    }

    for (localPtr = procPtr->firstLocalPtr;  localPtr != NULL;
	    localPtr = localPtr->nextPtr) {

		}
		Tcl_SetObjResult(interp, Tcl_NewBooleanObj(0));
	    }
	    return TCL_OK;
	}
    }

    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "procedure \"%s\" doesn't have an argument \"%s\"",
	    procName, argName));
    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "ARGUMENT", argName, (char *)NULL);
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *

	if (target == NULL) {
	    return TCL_ERROR;
	}
    }

    iPtr = (Interp *) target;
    Tcl_SetObjResult(interp, iPtr->errorStack);

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

    if (TclGetIntFromObj(interp, objv[1], &level) != TCL_OK) {
	code = TCL_ERROR;
	goto done;
    }

    if ((level > topLevel) || (level <= - topLevel)) {
    levelError:
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"bad level \"%s\"", TclGetString(objv[1])));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "LEVEL",
		TclGetString(objv[1]), (char *)NULL);
	code = TCL_ERROR;
	goto done;
    }

    /*

    if (objc != 1) {
	Tcl_WrongNumArgs(interp, 1, objv, NULL);
	return TCL_ERROR;
    }

    name = Tcl_GetHostName();
    if (name) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(name, -1));
	return TCL_OK;
    }

    Tcl_SetObjResult(interp, Tcl_NewStringObj(
	    "unable to determine name of host", -1));
    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "HOSTNAME", "UNKNOWN", (char *)NULL);
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *

	return TCL_OK;
    }

    Tcl_WrongNumArgs(interp, 1, objv, "?number?");
    return TCL_ERROR;

  levelError:
    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "bad level \"%s\"", TclGetString(objv[1])));
    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "LEVEL",
	    TclGetString(objv[1]), (char *)NULL);
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------

    if (objc != 1) {
	Tcl_WrongNumArgs(interp, 1, objv, NULL);
	return TCL_ERROR;
    }

    libDirName = Tcl_GetVar2(interp, "tcl_library", NULL, TCL_GLOBAL_ONLY);
    if (libDirName != NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(libDirName, -1));
	return TCL_OK;
    }

    Tcl_SetObjResult(interp, Tcl_NewStringObj(
	    "no library has been specified for Tcl", -1));
    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "VARIABLE", "tcl_library", (char *)NULL);
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *

	Tcl_WrongNumArgs(interp, 1, objv, NULL);
	return TCL_ERROR;
    }

    patchlevel = Tcl_GetVar2(interp, "tcl_patchLevel", NULL,
	    (TCL_GLOBAL_ONLY | TCL_LEAVE_ERR_MSG));
    if (patchlevel != NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(patchlevel, -1));
	return TCL_OK;
    }
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------

{
    if (objc != 1) {
	Tcl_WrongNumArgs(interp, 1, objv, NULL);
	return TCL_ERROR;
    }

#ifdef TCL_SHLIB_EXT
    Tcl_SetObjResult(interp, Tcl_NewStringObj(TCL_SHLIB_EXT, -1));
#endif
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *

    /*
     * There's one special case: safe child interpreters can't see aliases as
     * aliases as they're part of the security mechanisms.
     */

    if (Tcl_IsSafe(interp)
	    && (((Command *) command)->objProc == TclAliasObjCmd)) {
	Tcl_AppendResult(interp, "native", (char *)NULL);
    } else {
	Tcl_SetObjResult(interp,
		Tcl_NewStringObj(TclGetCommandTypeName(command), -1));
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *

     * First, extract the element to be returned.
     * TclLindexFlat adds a ref count which is handled.
     */

    if (objc == 2) {
	if (!listLen) {
	    /* empty list, throw the same error as with index "end" */
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"index \"end\" out of range", -1));
	    Tcl_SetErrorCode(interp, "TCL", "VALUE", "INDEX"
		"OUTOFRANGE", (char *)NULL);
	    return TCL_ERROR;
	}

	result = Tcl_ListObjIndex(interp, listPtr, (listLen-1),	&elemPtr);
	if (result != TCL_OK) {
	    return result;
	}

	Tcl_WrongNumArgs(interp, 1, objv, "count ?value ...?");
	return TCL_ERROR;
    }
    if (TCL_OK != TclGetWideIntFromObj(interp, objv[1], &elementCount)) {
	return TCL_ERROR;
    }
    if (elementCount < 0) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"bad count \"%" TCL_LL_MODIFIER "d\": must be integer >= 0", elementCount));

	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LREPEAT", "NEGARG",
		(char *)NULL);
	return TCL_ERROR;
    }

    /*
     * Skip forward to the interesting arguments now we've finished parsing.
     */

    objc -= 2;
    objv += 2;

    /* Final sanity check. Do not exceed limits on max list length. */

    if (elementCount && objc > LIST_MAX/elementCount) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"max length of a Tcl list (%" TCL_SIZE_MODIFIER "d elements) exceeded", LIST_MAX));

	Tcl_SetErrorCode(interp, "TCL", "MEMORY", (char *)NULL);
	return TCL_ERROR;
    }
    totalElems = objc * elementCount;

    /*
     * Get an empty list object that is allocated large enough to hold each

	     */

	    if (startPtr != NULL) {
		Tcl_DecrRefCount(startPtr);
		startPtr = NULL;
	    }
	    if (i > objc-4) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"missing starting index", -1));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (char *)NULL);
		result = TCL_ERROR;
		goto done;
	    }
	    i++;
	    if (objv[i] == objv[objc - 2]) {
		/*

	    } else {
		startPtr = objv[i];
	    }
	    Tcl_IncrRefCount(startPtr);
	    break;
	case LSEARCH_STRIDE:		/* -stride */
	    if (i > objc-4) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"\"-stride\" option must be "
			"followed by stride length", -1));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (char *)NULL);
		result = TCL_ERROR;
		goto done;
	    }
	    if (TclGetWideIntFromObj(interp, objv[i+1], &wide) != TCL_OK) {
		result = TCL_ERROR;
		goto done;
	    }
	    if (wide < 1) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"stride length must be at least 1", -1));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSEARCH",
			"BADSTRIDE", (char *)NULL);
		result = TCL_ERROR;
		goto done;
	    }
	    groupSize = wide;
	    i++;
	    break;
	case LSEARCH_INDEX: {		/* -index */
	    Tcl_Obj **indices;
	    Tcl_Size j;

	    if (allocatedIndexVector) {
		TclStackFree(interp, sortInfo.indexv);
		allocatedIndexVector = 0;
	    }
	    if (i > objc-4) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"\"-index\" option must be followed by list index",
			-1));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (char *)NULL);
		result = TCL_ERROR;
		goto done;
	    }

	    /*
	     * Store the extracted indices for processing by sublist

	    for (j=0 ; j<sortInfo.indexc ; j++) {
		int encoded = 0;
		if (TclIndexEncode(interp, indices[j], TCL_INDEX_NONE,
			TCL_INDEX_NONE, &encoded) != TCL_OK) {
		    result = TCL_ERROR;
		}
		if (encoded == (int)TCL_INDEX_NONE) {
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			    "index \"%s\" out of range",
			    TclGetString(indices[j])));
		    Tcl_SetErrorCode(interp, "TCL", "VALUE", "INDEX"
			    "OUTOFRANGE", (char *)NULL);
		    result = TCL_ERROR;
		}
		if (result == TCL_ERROR) {
		    Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
			    "\n    (-index option item number %" TCL_Z_MODIFIER "u)", j));

    }

    /*
     * Subindices only make sense if asked for with -index option set.
     */

    if (returnSubindices && sortInfo.indexc==0) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"-subindices cannot be used without -index option", -1));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSEARCH",
		"BAD_OPTION_MIX", (char *)NULL);
	result = TCL_ERROR;
	goto done;
    }

    if (bisect && (allMatches || negatedMatch)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"-bisect is not compatible with -all or -not", -1));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSEARCH",
		"BAD_OPTION_MIX", (char *)NULL);
	result = TCL_ERROR;
	goto done;
    }

    if (mode == REGEXP) {

    /*
     * Check for sanity when grouping elements of the overall list together
     * because of the -stride option. [TIP #351]
     */

    if (groupSize > 1) {
	if (listc % groupSize) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "list size must be a multiple of the stride length",
		    -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSEARCH", "BADSTRIDE",
		    (char *)NULL);
	    result = TCL_ERROR;
	    goto done;
	}
	if (sortInfo.indexc > 0) {
	    /*
	     * Use the first value in the list supplied to -index as the
	     * offset of the element within each group by which to sort.
	     */

	    groupOffset = TclIndexDecode(sortInfo.indexv[0], groupSize - 1);
	    if (groupOffset < 0 || groupOffset >= groupSize) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"when used with \"-stride\", the leading \"-index\""
			" value must be within the group", -1));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSEARCH",
			"BADINDEX", (char *)NULL);
		result = TCL_ERROR;
		goto done;
	    }
	    if (sortInfo.indexc == 1) {
		sortInfo.indexc = 0;

	    goto done;
	    break;
	}
	break;

/*    Error cases: incomplete arguments */
    case 12:
	 opmode = (SequenceOperators)values[1]; goto KeywordError; break;
    case 112:
	 opmode = (SequenceOperators)values[2]; goto KeywordError; break;
    case 1212:
	 opmode = (SequenceOperators)values[3]; goto KeywordError; break;
    KeywordError:
	 switch (opmode) {
	 case LSEQ_DOTS:
	 case LSEQ_TO:
	      Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		  "missing \"to\" value."));
	      break;
	 case LSEQ_COUNT:
	      Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		  "missing \"count\" value."));
	      break;
	 case LSEQ_BY:
	      Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		  "missing \"by\" value."));
	      break;
	 }
	 goto done;
	 break;

/*    All other argument errors */
    default:
	 Tcl_WrongNumArgs(interp, 1, objv, "n ??op? n ??by? n??");
	 goto done;
	 break;
    }

    /*
     * Success!  Now lets create the series object.
     */
    status = TclNewArithSeriesObj(interp, &arithSeriesPtr,
		  useDoubles, start, end, step, elementCount);

	}
	switch (index) {
	case LSORT_ASCII:
	    sortInfo.sortMode = SORTMODE_ASCII;
	    break;
	case LSORT_COMMAND:
	    if (i == objc-2) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"\"-command\" option must be followed "
			"by comparison command", -1));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (char *)NULL);
		sortInfo.resultCode = TCL_ERROR;
		goto done;
	    }
	    sortInfo.sortMode = SORTMODE_COMMAND;
	    cmdPtr = objv[i+1];
	    i++;

	    sortInfo.isIncreasing = 1;
	    break;
	case LSORT_INDEX: {
	    Tcl_Size sortindex;
	    Tcl_Obj **indexv;

	    if (i == objc-2) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"\"-index\" option must be followed by list index",
			-1));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (char *)NULL);
		sortInfo.resultCode = TCL_ERROR;
		goto done;
	    }
	    if (TclListObjGetElements(interp, objv[i+1], &sortindex,
		    &indexv) != TCL_OK) {
		sortInfo.resultCode = TCL_ERROR;

	    for (j=0 ; j<sortindex ; j++) {
		int encoded = 0;
		int result = TclIndexEncode(interp, indexv[j],
			TCL_INDEX_NONE, TCL_INDEX_NONE, &encoded);

		if ((result == TCL_OK) && (encoded == (int)TCL_INDEX_NONE)) {
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			    "index \"%s\" out of range",
			    TclGetString(indexv[j])));
		    Tcl_SetErrorCode(interp, "TCL", "VALUE", "INDEX"
			    "OUTOFRANGE", (char *)NULL);
		    result = TCL_ERROR;
		}
		if (result == TCL_ERROR) {
		    Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
			    "\n    (-index option item number %" TCL_Z_MODIFIER "u)", j));

	    sortInfo.unique = 1;
	    break;
	case LSORT_INDICES:
	    indices = 1;
	    break;
	case LSORT_STRIDE:
	    if (i == objc-2) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"\"-stride\" option must be "
			"followed by stride length", -1));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (char *)NULL);
		sortInfo.resultCode = TCL_ERROR;
		goto done;
	    }
	    if (TclGetWideIntFromObj(interp, objv[i+1], &wide) != TCL_OK) {
		sortInfo.resultCode = TCL_ERROR;
		goto done;
	    }
	    if (wide < 2) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"stride length must be at least 2", -1));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSORT",
			"BADSTRIDE", (char *)NULL);
		sortInfo.resultCode = TCL_ERROR;
		goto done;
	    }
	    groupSize = wide;
	    group = 1;

    /*
     * Check for sanity when grouping elements of the overall list together
     * because of the -stride option. [TIP #326]
     */

    if (group) {
	if (length % groupSize) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "list size must be a multiple of the stride length",
		    -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSORT", "BADSTRIDE",
		    (char *)NULL);
	    sortInfo.resultCode = TCL_ERROR;
	    goto done;
	}
	length = length / groupSize;
	if (sortInfo.indexc > 0) {
	    /*
	     * Use the first value in the list supplied to -index as the
	     * offset of the element within each group by which to sort.
	     */

	    groupOffset = TclIndexDecode(sortInfo.indexv[0], groupSize - 1);
	    if (groupOffset < 0 || groupOffset >= groupSize) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"when used with \"-stride\", the leading \"-index\""
			" value must be within the group", -1));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSORT",
			"BADINDEX", (char *)NULL);
		sortInfo.resultCode = TCL_ERROR;
		goto done;
	    }
	    if (sortInfo.indexc == 1) {
		sortInfo.indexc = 0;

    elmArrSize = length * sizeof(SortElement);
    if (elmArrSize <= MAXCALLOC) {
	elementArray = (SortElement *)Tcl_Alloc(elmArrSize);
    } else {
	elementArray = (SortElement *)malloc(elmArrSize);
    }
    if (!elementArray) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"no enough memory to proccess sort of %" TCL_Z_MODIFIER "u items", length));

	Tcl_SetErrorCode(interp, "TCL", "MEMORY", (char *)NULL);
	sortInfo.resultCode = TCL_ERROR;
	goto done;
    }

    for (i=0; i < length; i++) {
	idx = groupSize * i + groupOffset;

	/*
	 * Parse the result of the command.
	 */

	if (TclGetIntFromObj(infoPtr->interp,
		Tcl_GetObjResult(infoPtr->interp), &order) != TCL_OK) {
	    Tcl_SetObjResult(infoPtr->interp, Tcl_NewStringObj(
		    "-compare command returned non-integer result", -1));
	    Tcl_SetErrorCode(infoPtr->interp, "TCL", "OPERATION", "LSORT",
		    "COMPARISONFAILED", (char *)NULL);
	    infoPtr->resultCode = TCL_ERROR;
	    return 0;
	}
    }
    if (!infoPtr->isIncreasing) {

		&currentObj) != TCL_OK) {
	    infoPtr->resultCode = TCL_ERROR;
	    return NULL;
	}
	if (currentObj == NULL) {
	    if (index == TCL_INDEX_NONE) {
		index = TCL_INDEX_END - infoPtr->indexv[i];
		Tcl_SetObjResult(infoPtr->interp, Tcl_ObjPrintf(
			"element end-%d missing from sublist \"%s\"",
			index, TclGetString(objPtr)));
	    } else {
		Tcl_SetObjResult(infoPtr->interp, Tcl_ObjPrintf(
			"element %d missing from sublist \"%s\"",
			index, TclGetString(objPtr)));
	    }
	    Tcl_SetErrorCode(infoPtr->interp, "TCL", "OPERATION", "LSORT",
		    "INDEXFAILED", (char *)NULL);
	    infoPtr->resultCode = TCL_ERROR;
	    return NULL;
	}
	objPtr = currentObj;

    /*
     * Check if the user requested -inline, but specified match variables; a
     * no-no.
     */

    if (doinline && ((objc - 2) != 0)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"regexp match variables not allowed when using -inline", -1));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "REGEXP",
		"MIX_VAR_INLINE", (void *)NULL);
	goto optionError;
    }

    /*
     * Handle the odd about case separately.

	 * object. (If they aren't, that's cheap to do.)
	 */

	if (TclListObjLength(interp, objv[2], &numParts) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (numParts < 1) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "command prefix must be a list of at least one element",
		    -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "REGSUB",
		    "CMDEMPTY", (void *)NULL);
	    return TCL_ERROR;
	}
	regExpr = Tcl_GetRegExpFromObj(interp, objv[0], cflags);
    }

    if (objc == 4) {
	const char *string = TclGetStringFromObj(objv[1], &length2);

	if ((length2 > 1) &&
		strncmp(string, "-nocase", length2) == 0) {
	    nocase = 1;
	} else {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "bad option \"%s\": must be -nocase", string));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INDEX", "option",
		    string, (void *)NULL);
	    return TCL_ERROR;
	}
    }

    /*

	    Tcl_SetObjResult(interp, objv[objc-1]);
	    return TCL_OK;
	} else if (mapElemc & 1) {
	    /*
	     * The charMap must be an even number of key/value items.
	     */

	    Tcl_SetObjResult(interp,
		    Tcl_NewStringObj("char map list unbalanced", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "MAP",
		    "UNBALANCED", (void *)NULL);
	    return TCL_ERROR;
	}
    }

    /*

    if (objc == 4) {
	Tcl_Size length;
	const char *string = TclGetStringFromObj(objv[1], &length);

	if ((length > 1) && strncmp(string, "-nocase", length) == 0) {
	    nocase = TCL_MATCH_NOCASE;
	} else {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "bad option \"%s\": must be -nocase", string));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INDEX", "option",
		    string, (void *)NULL);
	    return TCL_ERROR;
	}
    }
    Tcl_SetObjResult(interp, Tcl_NewBooleanObj(
		TclStringMatchObj(objv[objc-1], objv[objc-2], nocase)));

	    if (TclGetWideIntFromObj(interp, objv[i], &reqlength) != TCL_OK) {
		return TCL_ERROR;
	    }
	    if ((Tcl_WideUInt)reqlength > TCL_SIZE_MAX) {
		reqlength = -1;
	    }
	} else {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "bad option \"%s\": must be -nocase or -length",
		    string2));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INDEX", "option",
		    string2, (void *)NULL);
	    return TCL_ERROR;
	}
    }

    /*

	    }
	    if ((Tcl_WideUInt)wreqlength > TCL_SIZE_MAX) {
	    	*reqlength = -1;
	    } else {
	    	*reqlength = wreqlength;
	    }
	} else {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "bad option \"%s\": must be -nocase or -length",
		    string));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INDEX", "option",
		    string, (void *)NULL);
	    return TCL_ERROR;
	}
    }
    return TCL_OK;
}

	default:
	    if (foundmode) {
		/*
		 * Mode already set via -exact, -glob, or -regexp.
		 */

		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"bad option \"%s\": %s option already found",
			TclGetString(objv[i]), options[mode]));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH",
			"DOUBLEOPT", (void *)NULL);
		return TCL_ERROR;
	    }
	    foundmode = 1;
	    mode = index;
	    break;

	    /*
	     * Check for TIP#75 options specifying the variables to write
	     * regexp information into.
	     */

	case OPT_INDEXV:
	    i++;
	    if (i >= objc-2) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"missing variable name argument to %s option",
			"-indexvar"));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH",
			"NOVAR", (void *)NULL);
		return TCL_ERROR;
	    }
	    indexVarObj = objv[i];
	    numMatchesSaved = -1;
	    break;
	case OPT_MATCHV:
	    i++;
	    if (i >= objc-2) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"missing variable name argument to %s option",
			"-matchvar"));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH",
			"NOVAR", (void *)NULL);
		return TCL_ERROR;
	    }
	    matchVarObj = objv[i];
	    numMatchesSaved = -1;
	    break;
	}
    }

  finishedOptions:
    if (objc - i < 2) {
	Tcl_WrongNumArgs(interp, 1, objv,
		"?-option ...? string ?pattern body ...? ?default body?");
	return TCL_ERROR;
    }
    if (indexVarObj != NULL && mode != OPT_REGEXP) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"%s option requires -regexp option", "-indexvar"));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH",
		"MODERESTRICTION", (void *)NULL);
	return TCL_ERROR;
    }
    if (matchVarObj != NULL && mode != OPT_REGEXP) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"%s option requires -regexp option", "-matchvar"));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH",
		"MODERESTRICTION", (void *)NULL);
	return TCL_ERROR;
    }

    stringObj = objv[i];
    objc -= i + 1;

    /*
     * Complain if there is an odd number of words in the list of patterns and
     * bodies.
     */

    if (objc % 2) {
	Tcl_ResetResult(interp);
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"extra switch pattern with no body", -1));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH", "BADARM",
		(void *)NULL);

	/*
	 * Check if this can be due to a badly placed comment in the switch
	 * block.
	 *

    /*
     * Complain if the last body is a continuation. Note that this check
     * assumes that the list is non-empty!
     */

    if (strcmp(TclGetString(objv[objc-1]), "-") == 0) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"no body specified for pattern \"%s\"",
		TclGetString(objv[objc-2])));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH", "BADARM",
		"FALLTHROUGH", (void *)NULL);
	return TCL_ERROR;
    }

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

    /*
     * The type must be a list of at least length 1.
     */

    if (TclListObjLength(interp, objv[1], &len) != TCL_OK) {
	return TCL_ERROR;
    } else if (len < 1) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"type must be non-empty list", -1));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "THROW", "BADEXCEPTION",
		(void *)NULL);
	return TCL_ERROR;
    }

    /*
     * Now prepare the result options dictionary. We use the list API as it is

		0, &type) != TCL_OK) {
	    Tcl_DecrRefCount(handlersObj);
	    return TCL_ERROR;
	}
	switch (type) {
	case TryFinally:	/* finally script */
	    if (i < objc-2) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"finally clause must be last", -1));
		Tcl_DecrRefCount(handlersObj);
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRY", "FINALLY",
			"NONTERMINAL", (void *)NULL);
		return TCL_ERROR;
	    } else if (i == objc-1) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"wrong # args to finally clause: must be"
			" \"... finally script\"", -1));
		Tcl_DecrRefCount(handlersObj);
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRY", "FINALLY",
			"ARGUMENT", (void *)NULL);
		return TCL_ERROR;
	    }
	    finallyObj = objv[++i];
	    break;

	case TryOn:		/* on code variableList script */
	    if (i > objc-4) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"wrong # args to on clause: must be \"... on code"
			" variableList script\"", -1));
		Tcl_DecrRefCount(handlersObj);
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRY", "ON",
			"ARGUMENT", (void *)NULL);
		return TCL_ERROR;
	    }
	    if (TclGetCompletionCodeFromObj(interp, objv[i+1],
		    &code) != TCL_OK) {
		Tcl_DecrRefCount(handlersObj);
		return TCL_ERROR;
	    }
	    info[2] = NULL;
	    goto commonHandler;

	case TryTrap:		/* trap pattern variableList script */
	    if (i > objc-4) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"wrong # args to trap clause: "
			"must be \"... trap pattern variableList script\"",
			-1));
		Tcl_DecrRefCount(handlersObj);
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRY", "TRAP",
			"ARGUMENT", (void *)NULL);
		return TCL_ERROR;
	    }
	    code = 1;
	    if (TclListObjLength(NULL, objv[i+1], &dummy) != TCL_OK) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"bad prefix '%s': must be a list",
			TclGetString(objv[i+1])));
		Tcl_DecrRefCount(handlersObj);
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRY", "TRAP",
			"EXNFORMAT", (void *)NULL);
		return TCL_ERROR;
	    }
	    info[2] = objv[i+1];

		    Tcl_NewListObj(5, info));
	    haveHandlers = 1;
	    i += 3;
	    break;
	}
    }
    if (bodyShared) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"last non-finally clause must not have a body of \"-\"", -1));
	Tcl_DecrRefCount(handlersObj);
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRY", "BADFALLTHROUGH",
		(void *)NULL);
	return TCL_ERROR;
    }
    if (!haveHandlers) {
	Tcl_DecrRefCount(handlersObj);

     * Check depth to avoid overflow of the C execution stack by too many
     * nested calls of TclCompileScript, considering interp recursionlimit.
     * Use factor 5/4 (1.25) to avoid being too mistaken when recognizing the
     * limit during "mixed" evaluation and compilation process (nested
     * eval+compile) and is good enough for default recursionlimit (1000).
     */
    if (iPtr->numLevels / 5 > iPtr->maxNestingDepth / 4) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"too many nested compilations (infinite loop?)", -1));
	Tcl_SetErrorCode(interp, "TCL", "LIMIT", "STACK", (char *)NULL);
	TclCompileSyntaxError(interp, envPtr);
	return;
    }

    if (numBytes < 0) {
	numBytes = strlen(script);
    }

    /* Each iteration compiles one command from the script. */

    if (numBytes > 0) {
	if (numBytes >= INT_MAX) {
	    /*
	     * Note this gets -errorline as 1. Not worth figuring out which line
	     * crosses the limit to get -errorline for this error case.
	     */
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "Script length %" TCL_SIZE_MODIFIER
		    "d exceeds max permitted length %d.",
		    numBytes, INT_MAX-1));
	    Tcl_SetErrorCode(interp, "TCL", "LIMIT", "SCRIPTLENGTH", (void *)NULL);
	    TclCompileSyntaxError(interp, envPtr);
	    return;
	}
	/*
	 * Don't use system stack (size of Tcl_Parse is ca. 400 bytes), so
	 * many nested compilations (body enclosed in body) can cause abnormal

    if (Tcl_DictObjGet(interp, pDB, pkgName, &pkgDict) != TCL_OK
	    || pkgDict == NULL) {
	/*
	 * Maybe a Tcl_Panic is better, because the package data has to be
	 * present.
	 */

	Tcl_SetObjResult(interp, Tcl_NewStringObj("package not known", -1));
	Tcl_SetErrorCode(interp, "TCL", "FATAL", "PKGCFG_BASE",
		TclGetString(pkgName), (void *)NULL);
	return TCL_ERROR;
    }

    switch (index) {
    case CFG_GET:
	if (objc != 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "key");
	    return TCL_ERROR;
	}

	if (Tcl_DictObjGet(interp, pkgDict, objv[2], &val) != TCL_OK
		|| val == NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj("key not known", -1));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "CONFIG",
		    TclGetString(objv[2]), (void *)NULL);
	    return TCL_ERROR;
	}

	if (cdPtr->encoding) {
	    venc = Tcl_GetEncoding(interp, cdPtr->encoding);

	    return TCL_ERROR;
	}

	Tcl_DictObjSize(interp, pkgDict, &m);
	listPtr = Tcl_NewListObj(m, NULL);

	if (!listPtr) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "insufficient memory to create list", -1));
	    Tcl_SetErrorCode(interp, "TCL", "MEMORY", (void *)NULL);
	    return TCL_ERROR;
	}

	if (m) {
	    Tcl_DictSearch s;
	    Tcl_Obj *key;

    dict->chain = NULL;
    dict->refCount = 1;
    DictSetInternalRep(objPtr, dict);
    return TCL_OK;

  missingValue:
    if (interp != NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"missing value to go with key", -1));
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DICTIONARY", (void *)NULL);
    }
  errorInFindDictElement:
    DeleteChainTable(dict);
    Tcl_Free(dict);
    return TCL_ERROR;
}

	    int isNew;			/* Dummy */

	    if (flags & DICT_PATH_EXISTS) {
		return DICT_PATH_NON_EXISTENT;
	    }
	    if ((flags & DICT_PATH_CREATE) != DICT_PATH_CREATE) {
		if (interp != NULL) {
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			    "key \"%s\" not known in dictionary",
			    TclGetString(keyv[i])));
		    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "DICT",
			    TclGetString(keyv[i]), (void *)NULL);
		}
		return NULL;
	    }

	    /*

	return TCL_ERROR;
    }
    result = Tcl_DictObjGet(interp, dictPtr, objv[objc-1], &valuePtr);
    if (result != TCL_OK) {
	return result;
    }
    if (valuePtr == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"key \"%s\" not known in dictionary",
		TclGetString(objv[objc-1])));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "DICT",
		TclGetString(objv[objc-1]), (void *)NULL);
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, valuePtr);
    return TCL_OK;
}

    dict = GetDictFromObj(interp, objv[1]);
    if (dict == NULL) {
	return TCL_ERROR;
    }

    statsStr = Tcl_HashStats(&dict->table);
    Tcl_SetObjResult(interp, Tcl_NewStringObj(statsStr, -1));
    Tcl_Free(statsStr);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *

     * Parse arguments.
     */

    if (TclListObjGetElements(interp, objv[1], &varc, &varv) != TCL_OK) {
	return TCL_ERROR;
    }
    if (varc != 2) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"must have exactly two variable names", -1));
	Tcl_SetErrorCode(interp, "TCL", "SYNTAX", "dict", "for", (void *)NULL);
	return TCL_ERROR;
    }
    searchPtr = (Tcl_DictSearch *)TclStackAlloc(interp, sizeof(Tcl_DictSearch));
    if (Tcl_DictObjFirst(interp, objv[2], searchPtr, &keyObj, &valueObj,
	    &done) != TCL_OK) {
	TclStackFree(interp, searchPtr);

     * Parse arguments.
     */

    if (TclListObjGetElements(interp, objv[1], &varc, &varv) != TCL_OK) {
	return TCL_ERROR;
    }
    if (varc != 2) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"must have exactly two variable names", -1));
	Tcl_SetErrorCode(interp, "TCL", "SYNTAX", "dict", "map", (void *)NULL);
	return TCL_ERROR;
    }
    storagePtr = (DictMapStorage *)TclStackAlloc(interp, sizeof(DictMapStorage));
    if (Tcl_DictObjFirst(interp, objv[2], &storagePtr->search, &keyObj,
	    &valueObj, &done) != TCL_OK) {
	TclStackFree(interp, storagePtr);

	 * copying from the "dict for" implementation has occurred!
	 */

	if (TclListObjGetElements(interp, objv[3], &varc, &varv) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (varc != 2) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "must have exactly two variable names", -1));
	    Tcl_SetErrorCode(interp, "TCL", "SYNTAX", "dict", "filter", (void *)NULL);
	    return TCL_ERROR;
	}
	keyVarObj = varv[0];
	valueVarObj = varv[1];
	scriptObj = objv[4];

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

	procPtr = TclFindProc((Interp *) interp, TclGetString(objv[2]));
	if (procPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "\"%s\" isn't a procedure", TclGetString(objv[2])));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "PROC",
		    TclGetString(objv[2]), (void *)NULL);
	    return TCL_ERROR;
	}

	/*
	 * Compile (if uncompiled) and disassemble a procedure.

	 */

	oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]);
	if (oPtr == NULL) {
	    return TCL_ERROR;
	}
	if (oPtr->classPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "\"%s\" is not a class", TclGetString(objv[2])));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "CLASS",
		    TclGetString(objv[2]), (void *)NULL);
	    return TCL_ERROR;
	}

	methodPtr = oPtr->classPtr->constructorPtr;
	if (methodPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "\"%s\" has no defined constructor",
		    TclGetString(objv[2])));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		    "CONSRUCTOR", (void *)NULL);
	    return TCL_ERROR;
	}
	procPtr = TclOOGetProcFromMethod(methodPtr);
	if (procPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "body not available for this kind of constructor", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		    "METHODTYPE", (void *)NULL);
	    return TCL_ERROR;
	}

	/*
	 * Compile if necessary.

	 */

	oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]);
	if (oPtr == NULL) {
	    return TCL_ERROR;
	}
	if (oPtr->classPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "\"%s\" is not a class", TclGetString(objv[2])));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "CLASS",
		    TclGetString(objv[2]), (void *)NULL);
	    return TCL_ERROR;
	}

	methodPtr = oPtr->classPtr->destructorPtr;
	if (methodPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "\"%s\" has no defined destructor",
		    TclGetString(objv[2])));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		    "DESRUCTOR", (void *)NULL);
	    return TCL_ERROR;
	}
	procPtr = TclOOGetProcFromMethod(methodPtr);
	if (procPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "body not available for this kind of destructor", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		    "METHODTYPE", (void *)NULL);
	    return TCL_ERROR;
	}

	/*
	 * Compile if necessary.

	 */

	oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]);
	if (oPtr == NULL) {
	    return TCL_ERROR;
	}
	if (oPtr->classPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "\"%s\" is not a class", TclGetString(objv[2])));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "CLASS",
		    TclGetString(objv[2]), (void *)NULL);
	    return TCL_ERROR;
	}
	hPtr = Tcl_FindHashEntry(&oPtr->classPtr->classMethods,
		objv[3]);
	goto methodBody;

	/*
	 * Compile (if necessary) and disassemble a method body.
	 */

    methodBody:
	if (hPtr == NULL) {
	unknownMethod:
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "unknown method \"%s\"", TclGetString(objv[3])));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "METHOD",
		    TclGetString(objv[3]), (void *)NULL);
	    return TCL_ERROR;
	}
	procPtr = TclOOGetProcFromMethod((Method *)Tcl_GetHashValue(hPtr));
	if (procPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "body not available for this kind of method", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		    "METHODTYPE", (void *)NULL);
	    return TCL_ERROR;
	}
	if (!TclHasInternalRep(procPtr->bodyPtr, &tclByteCodeType)) {
	    Command cmd;

    /*
     * Do the actual disassembly.
     */

    ByteCodeGetInternalRep(codeObjPtr, &tclByteCodeType, codePtr);

    if (codePtr->flags & TCL_BYTECODE_PRECOMPILED) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"may not disassemble prebuilt bytecode", -1));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		"BYTECODE", (void *)NULL);
	return TCL_ERROR;
    }
    if (clientData) {
	Tcl_SetObjResult(interp,
		DisassembleByteCodeAsDicts(codeObjPtr));

		 * wants to know error location.
		 */
		*errorLocPtr = result == TCL_OK ? TCL_INDEX_NONE : nBytesProcessed;
	    } else {
		/* Caller wants error message on failure */
		if (result != TCL_OK && interp != NULL) {
		    char buf[TCL_INTEGER_SPACE];
		    snprintf(buf, sizeof(buf), "%" TCL_SIZE_MODIFIER "d", nBytesProcessed);

		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			    "unexpected byte sequence starting at index %"
			    TCL_SIZE_MODIFIER "d: '\\x%02X'",
			    nBytesProcessed, UCHAR(srcStart[nBytesProcessed])));
		    Tcl_SetErrorCode(
			    interp, "TCL", "ENCODING", "ILLEGALSEQUENCE", buf, (void *)NULL);
		}
	    }
	    if (result != TCL_OK) {
		errno = (result == TCL_CONVERT_NOSPACE) ? ENOMEM : EILSEQ;
	    }
	    return result;
	}

		if (result != TCL_OK && interp != NULL) {
		    Tcl_Size pos = Tcl_NumUtfChars(srcStart, nBytesProcessed);
		    int ucs4;
		    char buf[TCL_INTEGER_SPACE];

		    TclUtfToUniChar(&srcStart[nBytesProcessed], &ucs4);
		    snprintf(buf, sizeof(buf), "%" TCL_SIZE_MODIFIER "d", nBytesProcessed);
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			    "unexpected character at index %" TCL_SIZE_MODIFIER
			    "u: 'U+%06X'",
			    pos, ucs4));
		    Tcl_SetErrorCode(interp, "TCL", "ENCODING", "ILLEGALSEQUENCE",
			    buf, (void *)NULL);
		}
	    }
	    if (result != TCL_OK) {
		errno = (result == TCL_CONVERT_NOSPACE) ? ENOMEM : EILSEQ;
	    }

	    map = Tcl_DuplicateObj(TclGetProcessGlobalValue(&encodingFileMap));
	    Tcl_DictObjPut(NULL, map, nameObj, dir[i]);
	    TclSetProcessGlobalValue(&encodingFileMap, map, NULL);
	}
    }

    if ((NULL == chan) && (interp != NULL)) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"unknown encoding \"%s\"", name));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "ENCODING", name, (void *)NULL);
    }
    Tcl_DecrRefCount(fileNameObj);
    Tcl_DecrRefCount(nameObj);
    Tcl_DecrRefCount(searchPath);

    return chan;

	encoding = LoadTableEncoding(name, ENCODING_MULTIBYTE, chan);
	break;
    case 'E':
	encoding = LoadEscapeEncoding(name, chan);
	break;
    }
    if ((encoding == NULL) && (interp != NULL)) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"invalid encoding file \"%s\"", name));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "ENCODING", name, (void *)NULL);
    }
    Tcl_CloseEx(NULL, chan, 0);

    return encoding;
}


    }
    if (interp) {
	/* This code assumes at least two profiles :-) */
	Tcl_Obj *errorObj = Tcl_ObjPrintf("bad profile name \"%s\": must be",
		profileName);
	for (i = 0; i < (numProfiles - 1); ++i) {
	    Tcl_AppendStringsToObj(
		errorObj, " ", encodingProfiles[i].name, ",", (void *)NULL);
	}
	Tcl_AppendStringsToObj(
	    errorObj, " or ", encodingProfiles[numProfiles-1].name, (void *)NULL);

	Tcl_SetObjResult(interp, errorObj);
	Tcl_SetErrorCode(
	    interp, "TCL", "ENCODING", "PROFILE", profileName, (void *)NULL);
    }
    return TCL_ERROR;
}

/*
 *------------------------------------------------------------------------
 *

    for (i = 0; i < sizeof(encodingProfiles) / sizeof(encodingProfiles[0]); ++i) {
	if (profileValue == encodingProfiles[i].value) {
	    return encodingProfiles[i].name;
	}
    }
    if (interp) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"Internal error. Bad profile id \"%d\".",
		profileValue));
	Tcl_SetErrorCode(
	    interp, "TCL", "ENCODING", "PROFILEID", (void *)NULL);
    }
    return NULL;
}

/*

    Tcl_Obj *listObj;
    const char *simpleName;
    enum EnsSubcmds index;
    int done;

    if (nsPtr == NULL || nsPtr->flags & NS_DEAD) {
	if (!Tcl_InterpDeleted(interp)) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "tried to manipulate ensemble of deleted namespace",
		    -1));
	    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "DEAD", (void *)NULL);
	}
	return TCL_ERROR;
    }

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "subcommand ?arg ...?");

			}
			if (allocatedMapFlag) {
			    Tcl_DecrRefCount(mapObj);
			}
			return TCL_ERROR;
		    }
		    if (len < 1) {
			Tcl_SetObjResult(interp, Tcl_NewStringObj(
				"ensemble subcommand implementations "
				"must be non-empty lists", -1));
			Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE",
				"EMPTY_TARGET", (void *)NULL);
			Tcl_DictObjDone(&search);
			if (patchedDict) {
			    Tcl_DecrRefCount(patchedDict);
			}
			if (allocatedMapFlag) {

			    Tcl_DictObjDone(&search);
			    if (patchedDict) {
				Tcl_DecrRefCount(patchedDict);
			    }
			    goto freeMapAndError;
			}
			if (len < 1) {
			    Tcl_SetObjResult(interp, Tcl_NewStringObj(
				    "ensemble subcommand implementations "
				    "must be non-empty lists", -1));
			    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE",
				    "EMPTY_TARGET", (void *)NULL);
			    Tcl_DictObjDone(&search);
			    if (patchedDict) {
				Tcl_DecrRefCount(patchedDict);
			    }
			    goto freeMapAndError;

		    mapObj = (patchedDict ? patchedDict : objv[1]);
		    if (patchedDict) {
			allocatedMapFlag = 1;
		    }
		    continue;
		}
		case CONF_NAMESPACE:
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "option -namespace is read-only", -1));
		    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "READ_ONLY",
			    (void *)NULL);
		    goto freeMapAndError;
		case CONF_PREFIX:
		    if (Tcl_GetBooleanFromObj(interp, objv[1],
			    &permitPrefix) != TCL_OK) {
			goto freeMapAndError;

    Tcl_Obj *subcmdList)
{
    Command *cmdPtr = (Command *) token;
    EnsembleConfig *ensemblePtr;
    Tcl_Obj *oldList;

    if (cmdPtr->objProc != TclEnsembleImplementationCmd) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"command is not an ensemble", -1));
	Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", (void *)NULL);
	return TCL_ERROR;
    }
    if (subcmdList != NULL) {
	Tcl_Size length;

	if (TclListObjLength(interp, subcmdList, &length) != TCL_OK) {

{
    Command *cmdPtr = (Command *) token;
    EnsembleConfig *ensemblePtr;
    Tcl_Obj *oldList;
    Tcl_Size length;

    if (cmdPtr->objProc != TclEnsembleImplementationCmd) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"command is not an ensemble", -1));
	Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", (void *)NULL);
	return TCL_ERROR;
    }
    if (paramList == NULL) {
	length = 0;
    } else {
	if (TclListObjLength(interp, paramList, &length) != TCL_OK) {

    Tcl_Obj *mapDict)
{
    Command *cmdPtr = (Command *) token;
    EnsembleConfig *ensemblePtr;
    Tcl_Obj *oldDict;

    if (cmdPtr->objProc != TclEnsembleImplementationCmd) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"command is not an ensemble", -1));
	Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", (void *)NULL);
	return TCL_ERROR;
    }
    if (mapDict != NULL) {
	Tcl_Size size;
	int done;
	Tcl_DictSearch search;

	    if (Tcl_ListObjIndex(interp, valuePtr, 0, &cmdObjPtr) != TCL_OK) {
		Tcl_DictObjDone(&search);
		return TCL_ERROR;
	    }
	    bytes = TclGetString(cmdObjPtr);
	    if (bytes[0] != ':' || bytes[1] != ':') {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"ensemble target is not a fully-qualified command",
			-1));
		Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE",
			"UNQUALIFIED_TARGET", (void *)NULL);
		Tcl_DictObjDone(&search);
		return TCL_ERROR;
	    }
	}

    Tcl_Obj *unknownList)
{
    Command *cmdPtr = (Command *) token;
    EnsembleConfig *ensemblePtr;
    Tcl_Obj *oldList;

    if (cmdPtr->objProc != TclEnsembleImplementationCmd) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"command is not an ensemble", -1));
	Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", (void *)NULL);
	return TCL_ERROR;
    }
    if (unknownList != NULL) {
	Tcl_Size length;

	if (TclListObjLength(interp, unknownList, &length) != TCL_OK) {

    int flags)
{
    Command *cmdPtr = (Command *) token;
    EnsembleConfig *ensemblePtr;
    int wasCompiled;

    if (cmdPtr->objProc != TclEnsembleImplementationCmd) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"command is not an ensemble", -1));
	Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", (void *)NULL);
	return TCL_ERROR;
    }

    ensemblePtr = (EnsembleConfig *)cmdPtr->objClientData;
    wasCompiled = ensemblePtr->flags & ENSEMBLE_COMPILE;

    Tcl_Obj **subcmdListPtr)
{
    Command *cmdPtr = (Command *) token;
    EnsembleConfig *ensemblePtr;

    if (cmdPtr->objProc != TclEnsembleImplementationCmd) {
	if (interp != NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "command is not an ensemble", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", (void *)NULL);
	}
	return TCL_ERROR;
    }

    ensemblePtr = (EnsembleConfig *)cmdPtr->objClientData;
    *subcmdListPtr = ensemblePtr->subcmdList;

    Tcl_Obj **paramListPtr)
{
    Command *cmdPtr = (Command *) token;
    EnsembleConfig *ensemblePtr;

    if (cmdPtr->objProc != TclEnsembleImplementationCmd) {
	if (interp != NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "command is not an ensemble", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", (void *)NULL);
	}
	return TCL_ERROR;
    }

    ensemblePtr = (EnsembleConfig *)cmdPtr->objClientData;
    *paramListPtr = ensemblePtr->parameterList;

    Tcl_Obj **mapDictPtr)
{
    Command *cmdPtr = (Command *) token;
    EnsembleConfig *ensemblePtr;

    if (cmdPtr->objProc != TclEnsembleImplementationCmd) {
	if (interp != NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "command is not an ensemble", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", (void *)NULL);
	}
	return TCL_ERROR;
    }

    ensemblePtr = (EnsembleConfig *)cmdPtr->objClientData;
    *mapDictPtr = ensemblePtr->subcommandDict;

    Tcl_Obj **unknownListPtr)
{
    Command *cmdPtr = (Command *) token;
    EnsembleConfig *ensemblePtr;

    if (cmdPtr->objProc != TclEnsembleImplementationCmd) {
	if (interp != NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "command is not an ensemble", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", (void *)NULL);
	}
	return TCL_ERROR;
    }

    ensemblePtr = (EnsembleConfig *)cmdPtr->objClientData;
    *unknownListPtr = ensemblePtr->unknownHandler;

    int *flagsPtr)
{
    Command *cmdPtr = (Command *) token;
    EnsembleConfig *ensemblePtr;

    if (cmdPtr->objProc != TclEnsembleImplementationCmd) {
	if (interp != NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "command is not an ensemble", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", (void *)NULL);
	}
	return TCL_ERROR;
    }

    ensemblePtr = (EnsembleConfig *)cmdPtr->objClientData;
    *flagsPtr = ensemblePtr->flags;

    Tcl_Namespace **namespacePtrPtr)
{
    Command *cmdPtr = (Command *) token;
    EnsembleConfig *ensemblePtr;

    if (cmdPtr->objProc != TclEnsembleImplementationCmd) {
	if (interp != NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "command is not an ensemble", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", (void *)NULL);
	}
	return TCL_ERROR;
    }

    ensemblePtr = (EnsembleConfig *)cmdPtr->objClientData;
    *namespacePtrPtr = (Tcl_Namespace *) ensemblePtr->nsPtr;

	 */

	cmdPtr = (Command *) TclGetOriginalCommand((Tcl_Command) cmdPtr);

	if (cmdPtr == NULL
		|| cmdPtr->objProc != TclEnsembleImplementationCmd) {
	    if (flags & TCL_LEAVE_ERR_MSG) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"\"%s\" is not an ensemble command",
			TclGetString(cmdNameObj)));
		Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "ENSEMBLE",
			TclGetString(cmdNameObj), (void *)NULL);
	    }
	    return NULL;
	}
    }

    if (ensemblePtr->nsPtr->flags & NS_DEAD) {
	/*
	 * Don't know how we got here, but make things give up quickly.
	 */

	if (!Tcl_InterpDeleted(interp)) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "ensemble activated for deleted namespace", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "DEAD", (void *)NULL);
	}
	return TCL_ERROR;
    }

    /*
     * If the table of subcommands is valid just lookup up the command there

     * all...
     */

    Tcl_ResetResult(interp);
    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "SUBCOMMAND",
	    TclGetString(subObj), (void *)NULL);
    if (ensemblePtr->subcommandTable.numEntries == 0) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"unknown subcommand \"%s\": namespace %s does not"
		" export any commands", TclGetString(subObj),
		ensemblePtr->nsPtr->fullName));
	return TCL_ERROR;
    }
    errorObj = Tcl_ObjPrintf("unknown%s subcommand \"%s\": must be ",
	    (ensemblePtr->flags & TCL_ENSEMBLE_PREFIX ? " or ambiguous" : ""),
	    TclGetString(subObj));
    if (ensemblePtr->subcommandTable.numEntries == 1) {
	Tcl_AppendToObj(errorObj, ensemblePtr->subcommandArrayPtr[0], -1);

     */

    Tcl_Preserve(ensemblePtr);
    TclSkipTailcall(interp);
    result = Tcl_EvalObjv(interp, paramc, paramv, 0);
    if ((result == TCL_OK) && (ensemblePtr->flags & ENSEMBLE_DEAD)) {
	if (!Tcl_InterpDeleted(interp)) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "unknown subcommand handler deleted its ensemble", -1));
	    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "UNKNOWN_DELETED",
		    (void *)NULL);
	}
	result = TCL_ERROR;
    }
    Tcl_Release(ensemblePtr);

    /*
     * Convert exceptional result to an error.
     */

    if (!Tcl_InterpDeleted(interp)) {
	if (result != TCL_ERROR) {
	    Tcl_ResetResult(interp);
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "unknown subcommand handler returned bad code: ", -1));
	    switch (result) {
	    case TCL_RETURN:
		Tcl_AppendToObj(Tcl_GetObjResult(interp), "return", -1);
		break;
	    case TCL_BREAK:
		Tcl_AppendToObj(Tcl_GetObjResult(interp), "break", -1);
		break;

     */

    TclNewLiteralStringObj(keyPtr, "-level");
    Tcl_IncrRefCount(keyPtr);
    result = Tcl_DictObjGet(NULL, objv[2], keyPtr, &valuePtr);
    Tcl_DecrRefCount(keyPtr);
    if (result != TCL_OK || valuePtr == NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"missing return option \"-level\"", -1));
	Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (void *)NULL);
	return TCL_ERROR;
    }
    if (Tcl_GetIntFromObj(interp, valuePtr, &level) == TCL_ERROR) {
	return TCL_ERROR;
    }
    TclNewLiteralStringObj(keyPtr, "-code");
    Tcl_IncrRefCount(keyPtr);
    result = Tcl_DictObjGet(NULL, objv[2], keyPtr, &valuePtr);
    Tcl_DecrRefCount(keyPtr);
    if (result != TCL_OK || valuePtr == NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"missing return option \"-code\"", -1));
	Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (void *)NULL);
	return TCL_ERROR;
    }
    if (Tcl_GetIntFromObj(interp, valuePtr, &code) == TCL_ERROR) {
	return TCL_ERROR;
    }

	    mask &= ~TCL_TIMER_EVENTS;
	    break;
	case OPT_NO_WEVTS:
	    mask &= ~TCL_WINDOW_EVENTS;
	    break;
	case OPT_TIMEOUT:
	    if (++i >= objc) {
	needArg:
		Tcl_ResetResult(interp);
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"argument required for \"%s\"", vWaitOptionStrings[index]));
		Tcl_SetErrorCode(interp, "TCL", "EVENT", "ARGUMENT", (void *)NULL);
		result = TCL_ERROR;
		goto done;
	    }
	    if (Tcl_GetIntFromObj(interp, objv[i], &timeout) != TCL_OK) {
		result = TCL_ERROR;
		goto done;
	    }
	    if (timeout < 0) {
		Tcl_ResetResult(interp);
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"timeout must be positive", -1));
		Tcl_SetErrorCode(interp, "TCL", "EVENT", "NEGTIME", (void *)NULL);
		result = TCL_ERROR;
		goto done;
	    }
	    break;
	case OPT_LAST:
	    i++;

	    }
	    if (TclGetChannelFromObj(interp, objv[i], &chan, &mode, 0)
		    != TCL_OK) {
		result = TCL_ERROR;
		goto done;
	    }
	    if (!(mode & TCL_READABLE)) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"channel \"%s\" wasn't open for reading",
			TclGetString(objv[i])));
		result = TCL_ERROR;
		goto done;
	    }
	    Tcl_CreateChannelHandler(chan, TCL_READABLE,
		    VwaitChannelReadProc, &vwaitItems[numItems]);
	    vwaitItems[numItems].donePtr = &done;
	    vwaitItems[numItems].sequence = -1;

	    }
	    if (TclGetChannelFromObj(interp, objv[i], &chan, &mode, 0)
		    != TCL_OK) {
		result = TCL_ERROR;
		goto done;
	    }
	    if (!(mode & TCL_WRITABLE)) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"channel \"%s\" wasn't open for writing",
			TclGetString(objv[i])));
		result = TCL_ERROR;
		goto done;
	    }
	    Tcl_CreateChannelHandler(chan, TCL_WRITABLE,
		    VwaitChannelWriteProc, &vwaitItems[numItems]);
	    vwaitItems[numItems].donePtr = &done;
	    vwaitItems[numItems].sequence = -1;
	    vwaitItems[numItems].mask = TCL_WRITABLE;
	    vwaitItems[numItems].sourceObj = objv[i];
	    numItems++;
	    break;
	}
    }

  endOfOptionLoop:
    if ((mask & (TCL_FILE_EVENTS | TCL_IDLE_EVENTS |
	    TCL_TIMER_EVENTS | TCL_WINDOW_EVENTS)) == 0) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"can't wait: would block forever", -1));
	Tcl_SetErrorCode(interp, "TCL", "EVENT", "NO_SOURCES", (void *)NULL);
	result = TCL_ERROR;
	goto done;
    }

    if ((timeout > 0) && ((mask & TCL_TIMER_EVENTS) == 0)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"timer events disabled with timeout specified", -1));
	Tcl_SetErrorCode(interp, "TCL", "EVENT", "NO_TIME", (void *)NULL);
	result = TCL_ERROR;
	goto done;
    }

    for (result = TCL_OK; i < objc; i++) {
	result = Tcl_TraceVar2(interp, TclGetString(objv[i]), NULL,

	result = TCL_ERROR;
	goto done;
    }

    if (!(mask & TCL_FILE_EVENTS)) {
	for (i = 0; i < numItems; i++) {
	    if (vwaitItems[i].mask) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"file events disabled with channel(s) specified", -1));
		Tcl_SetErrorCode(interp, "TCL", "EVENT", "NO_FILE_EVENT", (void *)NULL);
		result = TCL_ERROR;
		goto done;
	    }
	}
    }

	   ((!any && (done < numItems)) || (any && !done))) {
	foundEvent = Tcl_DoOneEvent(mask);
	if (Tcl_Canceled(interp, TCL_LEAVE_ERR_MSG) == TCL_ERROR) {
	    break;
	}
	if (Tcl_LimitExceeded(interp)) {
	    Tcl_ResetResult(interp);
	    Tcl_SetObjResult(interp, Tcl_NewStringObj("limit exceeded", -1));
	    Tcl_SetErrorCode(interp, "TCL", "EVENT", "LIMIT", (void *)NULL);
	    break;
	}
	if ((numItems == 0) && (timeout == 0)) {
	    /*
	     * Behavior like "update": clear interpreter's result because
	     * event handlers could have executed commands.
	     */
	    Tcl_ResetResult(interp);
	    result = TCL_OK;
	    goto done;
	}
    }

    if (!foundEvent) {
	Tcl_ResetResult(interp);
	Tcl_SetObjResult(interp, Tcl_NewStringObj((numItems == 0) ?
		"can't wait: would wait forever" :
		"can't wait for variable(s)/channel(s): would wait forever",
		-1));
	Tcl_SetErrorCode(interp, "TCL", "EVENT", "NO_SOURCES", (void *)NULL);
	result = TCL_ERROR;
	goto done;
    }

    if (!done && !timedOut) {
	/*

    while (Tcl_DoOneEvent(flags) != 0) {
	if (Tcl_Canceled(interp, TCL_LEAVE_ERR_MSG) == TCL_ERROR) {
	    return TCL_ERROR;
	}
	if (Tcl_LimitExceeded(interp)) {
	    Tcl_ResetResult(interp);
	    Tcl_SetObjResult(interp, Tcl_NewStringObj("limit exceeded", -1));
	    return TCL_ERROR;
	}
    }

    /*
     * Must clear the interpreter's result because event handlers could have
     * executed commands.

	void *yieldParameter;

    case INST_YIELD:
	corPtr = iPtr->execEnvPtr->corPtr;
	TRACE(("%.30s => ", O2S(OBJ_AT_TOS)));
	if (!corPtr) {
	    TRACE_APPEND(("ERROR: yield outside coroutine\n"));
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "yield can only be called in a coroutine", -1));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ILLEGAL_YIELD",
		    (void *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}

    case INST_YIELD_TO_INVOKE:
	corPtr = iPtr->execEnvPtr->corPtr;
	valuePtr = OBJ_AT_TOS;
	if (!corPtr) {
	    TRACE(("[%.30s] => ERROR: yield outside coroutine\n",
		    O2S(valuePtr)));
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "yieldto can only be called in a coroutine", -1));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ILLEGAL_YIELD",
		    (void *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}
	if (((Namespace *)TclGetCurrentNamespace(interp))->flags & NS_DYING) {
	    TRACE(("[%.30s] => ERROR: yield in deleted\n",
		    O2S(valuePtr)));
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "yieldto called in deleted namespace", -1));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "YIELDTO_IN_DELETED",
		    (void *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}

    case INST_TAILCALL: {
	Tcl_Obj *listPtr, *nsObjPtr;

	opnd = TclGetUInt1AtPtr(pc+1);

	if (!(iPtr->varFramePtr->isProcCallFrame & 1)) {
	    TRACE(("%d => ERROR: tailcall in non-proc context\n", opnd));
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "tailcall can only be called from a proc or lambda", -1));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "TAILCALL", "ILLEGAL", (void *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}

#ifdef TCL_COMPILE_DEBUG

	    level += framePtr->level;
	}
	for (; ((int)framePtr->level!=level) && (framePtr!=rootFramePtr) ;
		framePtr = framePtr->callerVarPtr) {
	    /* Empty loop body */
	}
	if (framePtr == rootFramePtr) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "bad level \"%s\"", TclGetString(OBJ_AT_TOS)));
	    TRACE_ERROR(interp);
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "STACK_LEVEL",
		    TclGetString(OBJ_AT_TOS), (void *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}

	    origCmd = cmd;
	}

	TclNewObj(objResultPtr);
	Tcl_GetCommandFullName(interp, origCmd, objResultPtr);
	if (TclCheckEmptyString(objResultPtr) == TCL_EMPTYSTRING_YES ) {
	    Tcl_DecrRefCount(objResultPtr);
	    instOriginError:
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "invalid command name \"%s\"", TclGetString(OBJ_AT_TOS)));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "COMMAND",
		    TclGetString(OBJ_AT_TOS), (void *)NULL);
	    CACHE_STACK_INFO();
	    TRACE_APPEND(("ERROR: not command\n"));
	    goto gotError;
	}

	Tcl_Size skip, newDepth;

    case INST_TCLOO_SELF:
	framePtr = iPtr->varFramePtr;
	if (framePtr == NULL ||
		!(framePtr->isProcCallFrame & FRAME_IS_METHOD)) {
	    TRACE(("=> ERROR: no TclOO call context\n"));
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "self may only be called from inside a method",
		    -1));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "OO", "CONTEXT_REQUIRED", (void *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}
	contextPtr = (CallContext *)framePtr->clientData;

	valuePtr = OBJ_AT_DEPTH(opnd - 2);
	objv = &OBJ_AT_DEPTH(opnd - 1);
	skip = 2;
	TRACE(("%d => ", opnd));
	if (framePtr == NULL ||
		!(framePtr->isProcCallFrame & FRAME_IS_METHOD)) {
	    TRACE_APPEND(("ERROR: no TclOO call context\n"));
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "nextto may only be called from inside a method",
		    -1));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "OO", "CONTEXT_REQUIRED", (void *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}
	contextPtr = (CallContext *)framePtr->clientData;

	oPtr = (Object *) Tcl_GetObjectFromObj(interp, valuePtr);
	if (oPtr == NULL) {
	    TRACE_APPEND(("ERROR: \"%.30s\" not object\n", O2S(valuePtr)));
	    goto gotError;
	} else {
	    Class *classPtr = oPtr->classPtr;
	    struct MInvoke *miPtr;
	    Tcl_Size i;
	    const char *methodType;

	    if (classPtr == NULL) {
		TRACE_APPEND(("ERROR: \"%.30s\" not class\n", O2S(valuePtr)));
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"\"%s\" is not a class", TclGetString(valuePtr)));
		DECACHE_STACK_INFO();
		Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_REQUIRED", (void *)NULL);
		CACHE_STACK_INFO();
		goto gotError;
	    }

	    for (i=contextPtr->index+1 ; i<contextPtr->callPtr->numChain ; i++) {

		    O2S(valuePtr)));
	    for (i = contextPtr->index ; i != TCL_INDEX_NONE ; i--) {
		miPtr = contextPtr->callPtr->chain + i;
		if (miPtr->isFilter
			|| miPtr->mPtr->declaringClassPtr != classPtr) {
		    continue;
		}
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"%s implementation by \"%s\" not reachable from here",
			methodType, TclGetString(valuePtr)));
		DECACHE_STACK_INFO();
		Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_NOT_REACHABLE",
			(void *)NULL);
		CACHE_STACK_INFO();
		goto gotError;
	    }
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "%s has no non-filter implementation by \"%s\"",
		    methodType, TclGetString(valuePtr)));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_NOT_THERE", (void *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}

    case INST_TCLOO_NEXT:
	opnd = TclGetUInt1AtPtr(pc+1);
	objv = &OBJ_AT_DEPTH(opnd - 1);
	framePtr = iPtr->varFramePtr;
	skip = 1;
	TRACE(("%d => ", opnd));
	if (framePtr == NULL ||
		!(framePtr->isProcCallFrame & FRAME_IS_METHOD)) {
	    TRACE_APPEND(("ERROR: no TclOO call context\n"));
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "next may only be called from inside a method",
		    -1));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "OO", "CONTEXT_REQUIRED", (void *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}
	contextPtr = (CallContext *)framePtr->clientData;

	    } else if (contextPtr->callPtr->flags & DESTRUCTOR) {
		methodType = "destructor";
	    } else {
		methodType = "method";
	    }

	    TRACE_APPEND(("ERROR: no TclOO next impl\n"));
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "no next %s implementation", methodType));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "OO", "NOTHING_NEXT", (void *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
#ifdef TCL_COMPILE_DEBUG
	} else if (tclTraceExec >= 2) {
	    int i;

			    (Tcl_WideUInt)w2*(Tcl_WideUInt)wResult);
		    goto wideResultOfArithmetic;
		}
		break;

	    case INST_RSHIFT:
		if (w2 < 0) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "negative shift argument", -1));
#ifdef ERROR_CODE_FOR_EARLY_DETECTED_ARITH_ERROR
		    DECACHE_STACK_INFO();
		    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
			    "domain error: argument not in valid range",
			    (void *)NULL);
		    CACHE_STACK_INFO();
#endif /* ERROR_CODE_FOR_EARLY_DETECTED_ARITH_ERROR */

		    wResult = w1 >> ((int) w2);
		    goto wideResultOfArithmetic;
		}
		break;

	    case INST_LSHIFT:
		if (w2 < 0) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "negative shift argument", -1));
#ifdef ERROR_CODE_FOR_EARLY_DETECTED_ARITH_ERROR
		    DECACHE_STACK_INFO();
		    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
			    "domain error: argument not in valid range",
			    (void *)NULL);
		    CACHE_STACK_INFO();
#endif /* ERROR_CODE_FOR_EARLY_DETECTED_ARITH_ERROR */

		    /*
		     * Technically, we could hold the value (1 << (INT_MAX+1))
		     * in an mp_int, but since we're using mp_mul_2d() to do
		     * the work, and it takes only an int argument, that's a
		     * good place to draw the line.
		     */

		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "integer value too large to represent", -1));
#ifdef ERROR_CODE_FOR_EARLY_DETECTED_ARITH_ERROR
		    DECACHE_STACK_INFO();
		    Tcl_SetErrorCode(interp, "ARITH", "IOVERFLOW",
			    "integer value too large to represent", (void *)NULL);
		    CACHE_STACK_INFO();
#endif /* ERROR_CODE_FOR_EARLY_DETECTED_ARITH_ERROR */
		    goto gotError;

	if (Tcl_DictObjGet(interp, dictPtr, OBJ_AT_TOS,
		&objResultPtr) != TCL_OK) {
	    TRACE_APPEND(("ERROR reading leaf dictionary key \"%.30s\": %s",
		    O2S(dictPtr), O2S(Tcl_GetObjResult(interp))));
	    goto gotError;
	}
	if (!objResultPtr) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "key \"%s\" not known in dictionary",
		    TclGetString(OBJ_AT_TOS)));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "DICT",
		    TclGetString(OBJ_AT_TOS), (void *)NULL);
	    CACHE_STACK_INFO();
	    TRACE_ERROR(interp);
	    goto gotError;
	}

	/*
	 * Division by zero in an expression. Control only reaches this point
	 * by "goto divideByZero".
	 */

    divideByZero:
	Tcl_SetObjResult(interp, Tcl_NewStringObj("divide by zero", -1));
	DECACHE_STACK_INFO();
	Tcl_SetErrorCode(interp, "ARITH", "DIVZERO", "divide by zero", (void *)NULL);
	CACHE_STACK_INFO();
	goto gotError;

    outOfMemory:
	Tcl_SetObjResult(interp, Tcl_NewStringObj("out of memory", -1));
	DECACHE_STACK_INFO();
	Tcl_SetErrorCode(interp, "ARITH", "OUTOFMEMORY", "out of memory", (void *)NULL);
	CACHE_STACK_INFO();
	goto gotError;

	/*
	 * Exponentiation of zero by negative number in an expression. Control
	 * only reaches this point by "goto exponOfZero".
	 */

    exponOfZero:
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"exponentiation of zero by negative power", -1));
	DECACHE_STACK_INFO();
	Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
		"exponentiation of zero by negative power", (void *)NULL);
	CACHE_STACK_INFO();

	/*
	 * Almost all error paths feed through here rather than assigning to

	    mp_clear(&big2);
	    break;
	default:
	    /* Unused, here to silence compiler warning */
	    invalid = 0;
	}
	if (invalid) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "negative shift argument", -1));
	    return GENERAL_ARITHMETIC_ERROR;
	}

	/*
	 * Zero shifted any number of bits is still zero.
	 */

		/*
		 * Technically, we could hold the value (1 << (INT_MAX+1)) in
		 * an mp_int, but since we're using mp_mul_2d() to do the
		 * work, and it takes only an int argument, that's a good
		 * place to draw the line.
		 */

		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"integer value too large to represent", -1));
		return GENERAL_ARITHMETIC_ERROR;
	    }
	    shift = (int)(*((const Tcl_WideInt *)ptr2));

	    /*
	     * Handle shifts within the native wide range.
	     */

	 * 268435455, which fits into a signed 32 bit int which is within the
	 * range of the Tcl_WideInt type. This means any numeric Tcl_Obj value
	 * not using TCL_NUMBER_INT type must hold a value larger than we
	 * accept.
	 */

	if (type2 != TCL_NUMBER_INT) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "exponent too large", -1));
	    return GENERAL_ARITHMETIC_ERROR;
	}

	/* From here (up to overflowExpon) w1 and exponent w2 are wide-int's. */
	assert(type1 == TCL_NUMBER_INT && type2 == TCL_NUMBER_INT);

	if (w1 == 2) {

		wResult = oddExponent ? -Exp64Value[base] : Exp64Value[base];
		WIDE_RESULT(wResult);
	    }
	}

    overflowExpon:

	if ((TclGetWideIntFromObj(NULL, value2Ptr, &w2) != TCL_OK)
		|| !TclHasInternalRep(value2Ptr, &tclIntType)
		|| (Tcl_WideUInt)w2 >= (1<<28)) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "exponent too large", -1));
	    return GENERAL_ARITHMETIC_ERROR;
	}
	Tcl_TakeBignumFromObj(NULL, valuePtr, &big1);
	err = mp_init(&bigResult);
	if (err == MP_OKAY) {
	    /* Don't use "mp_expt_n" directly here, it doesn't exist in libtommath 1.2 */
	    err = TclBN_mp_expt_n(&big1, (int)w2, &bigResult);

    } else if (type == TCL_NUMBER_DOUBLE) {
	description = "floating-point value";
    } else {
	/* TODO: No caller needs this. Eliminate? */
	description = "(big) integer";
    }

    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "can't use %s \"%s\" as operand of \"%s\"", description,
	    TclGetString(opndPtr), op));
    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN", description, (void *)NULL);
}

/*
 *----------------------------------------------------------------------
 *
 * TclGetSrcInfoForPc, GetSrcInfoForPc, TclGetSourceFromFrame --

    double value)		/* Value returned after error; used to
				 * distinguish underflows from overflows. */
{
    const char *s;

    if ((errno == EDOM) || isnan(value)) {
	s = "domain error: argument not in valid range";
	Tcl_SetObjResult(interp, Tcl_NewStringObj(s, -1));
	Tcl_SetErrorCode(interp, "ARITH", "DOMAIN", s, (void *)NULL);
    } else if ((errno == ERANGE) || isinf(value)) {
	if (value == 0.0) {
	    s = "floating-point value too small to represent";
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(s, -1));
	    Tcl_SetErrorCode(interp, "ARITH", "UNDERFLOW", s, (void *)NULL);
	} else {
	    s = "floating-point value too large to represent";
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(s, -1));
	    Tcl_SetErrorCode(interp, "ARITH", "OVERFLOW", s, (void *)NULL);
	}
    } else {
	Tcl_Obj *objPtr = Tcl_ObjPrintf(
		"unknown floating-point error, errno = %d", errno);

	Tcl_SetErrorCode(interp, "ARITH", "UNKNOWN",

     * overwriting the symlink.
     */

    if ((Tcl_FSStat(target, &statBuf) != 0) || !S_ISDIR(statBuf.st_mode)) {
	if ((objc - i) > 2) {
	    errno = ENOTDIR;
	    Tcl_PosixError(interp);
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "error %s: target \"%s\" is not a directory",
		    (copyFlag?"copying":"renaming"), TclGetString(target)));
	    result = TCL_ERROR;
	} else {
	    /*
	     * Even though already have target == translated(objv[i+1]), pass
	     * the original argument down, so if there's an error, the error
	     * message will reflect the original arguments.
	     */

	}
	Tcl_DecrRefCount(split);
	split = NULL;
    }

  done:
    if (errfile != NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"can't create directory \"%s\": %s",
		TclGetString(errfile), Tcl_PosixError(interp)));
	result = TCL_ERROR;
    }
    if (split != NULL) {
	Tcl_DecrRefCount(split);
    }
    if (target != NULL) {
	Tcl_DecrRefCount(target);

	     * We own a reference count on errorBuffer, if it was set as a
	     * result of this call.
	     */

	    result = Tcl_FSRemoveDirectory(objv[i], force, &errorBuffer);
	    if (result != TCL_OK) {
		if ((force == 0) && (errno == EEXIST)) {
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			    "error deleting \"%s\": directory not empty",
			    TclGetString(objv[i])));
		    Tcl_PosixError(interp);
		    goto done;
		}

		/*
		 * If possible, use the untranslated name for the file.
		 */

    }
    if (result != TCL_OK) {
	if (errfile == NULL) {
	    /*
	     * We try to accommodate poor error results from our Tcl_FS calls.
	     */

	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "error deleting unknown file: %s",
		    Tcl_PosixError(interp)));
	} else {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "error deleting \"%s\": %s",
		    TclGetString(errfile), Tcl_PosixError(interp)));
	}
    }

  done:
    if (errorBuffer != NULL) {
	Tcl_DecrRefCount(errorBuffer);
    }

	 * implementations of copy and rename on all platforms also prevent
	 * this.
	 */

	if (S_ISDIR(sourceStatBuf.st_mode)
		&& !S_ISDIR(targetStatBuf.st_mode)) {
	    errno = EISDIR;
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "can't overwrite file \"%s\" with directory \"%s\"",
		    TclGetString(target), TclGetString(source)));
	    goto done;
	}
	if (!S_ISDIR(sourceStatBuf.st_mode)
		&& S_ISDIR(targetStatBuf.st_mode)) {
	    errno = EISDIR;
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "can't overwrite directory \"%s\" with file \"%s\"",
		    TclGetString(target), TclGetString(source)));
	    goto done;
	}

	/*
	 * The destination exists, but appears to be ok to over-write, and
	 * -force is given. We now try to adjust permissions to ensure the
	 * operation succeeds. If we can't adjust permissions, we'll let the

    if (copyFlag == 0) {
	result = Tcl_FSRenameFile(source, target);
	if (result == TCL_OK) {
	    goto done;
	}

	if (errno == EINVAL) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "error renaming \"%s\" to \"%s\": trying to rename a"
		    " volume or move a directory into itself",
		    TclGetString(source), TclGetString(target)));
	    goto done;
	} else if (errno != EXDEV) {
	    errfile = target;
	    goto done;
	}

	/*

	 */

	if (Tcl_FSStat(source, &sourceStatBuf) != 0) {
	    /*
	     * Actual file doesn't exist.
	     */

	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "error copying \"%s\": the target of this link doesn't"
		    " exist", TclGetString(source)));
	    goto done;
	} else {
	    int counter = 0;

	    while (1) {
		Tcl_Obj *path = Tcl_FSLink(actualSource, NULL, 0);
		if (path == NULL) {

	} else {
	    result = Tcl_FSDeleteFile(source);
	    if (result != TCL_OK) {
		errfile = source;
	    }
	}
	if (result != TCL_OK) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf("can't unlink \"%s\": %s",
		    TclGetString(errfile), Tcl_PosixError(interp)));
	    errfile = NULL;
	}
    }

  done:
    if (errfile != NULL) {
	Tcl_Obj *errorMsg = Tcl_ObjPrintf("error %s \"%s\"",

	if (objStrings == NULL) {
	    if (Tcl_GetErrno() != 0) {
		/*
		 * There was an error, probably that the filePtr is not
		 * accepted by any filesystem
		 */

		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"could not read \"%s\": %s",
			TclGetString(filePtr), Tcl_PosixError(interp)));
	    }
	    return TCL_ERROR;
	}

	/*
	 * We own the object now.
	 */

	 * Get one attribute.
	 */

	int index;
	Tcl_Obj *objPtr = NULL;

	if (numObjStrings == 0) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "bad option \"%s\", there are no file attributes in this"
		    " filesystem", TclGetString(objv[0])));
	    Tcl_SetErrorCode(interp, "TCL","OPERATION","FATTR","NONE", (void *)NULL);
	    goto end;
	}

	if (Tcl_GetIndexFromObj(interp, objv[0], attributeStrings,
		"option", TCL_INDEX_TEMP_TABLE, &index) != TCL_OK) {
	    goto end;

	/*
	 * Set option/value pairs.
	 */

	int i, index;

	if (numObjStrings == 0) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "bad option \"%s\", there are no file attributes in this"
		    " filesystem", TclGetString(objv[0])));
	    Tcl_SetErrorCode(interp, "TCL","OPERATION","FATTR","NONE", (void *)NULL);
	    goto end;
	}

	for (i = 0; i < objc ; i += 2) {
	    if (Tcl_GetIndexFromObj(interp, objv[i], attributeStrings,
		    "option", TCL_INDEX_TEMP_TABLE, &index) != TCL_OK) {
		goto end;
	    }
	    if (i + 1 == objc) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"value for \"%s\" missing", TclGetString(objv[i])));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "FATTR",
			"NOVALUE", (void *)NULL);
		goto end;
	    }
	    if (Tcl_FSFileAttrsSet(interp, index, filePtr,
		    objv[i + 1]) != TCL_OK) {
		goto end;

	if (contents == NULL) {
	    /*
	     * We handle three common error cases specially, and for all other
	     * errors, we use the standard Posix error message.
	     */

	    if (errno == EEXIST) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"could not create new link \"%s\": that path already"
			" exists", TclGetString(objv[index])));
		Tcl_PosixError(interp);
	    } else if (errno == ENOENT) {
		/*
		 * There are two cases here: either the target doesn't exist,
		 * or the directory of the src doesn't exist.
		 */

		int access;
		Tcl_Obj *dirPtr = TclPathPart(interp, objv[index],
			TCL_PATH_DIRNAME);

		if (dirPtr == NULL) {
		    return TCL_ERROR;
		}
		access = Tcl_FSAccess(dirPtr, F_OK);
		Tcl_DecrRefCount(dirPtr);
		if (access != 0) {
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			    "could not create new link \"%s\": no such file"
			    " or directory", TclGetString(objv[index])));
		    Tcl_PosixError(interp);
		} else {
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			    "could not create new link \"%s\": target \"%s\" "
			    "doesn't exist", TclGetString(objv[index]),
			    TclGetString(objv[index+1])));
		    errno = ENOENT;
		    Tcl_PosixError(interp);
		}
	    } else {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"could not create new link \"%s\" pointing to \"%s\": %s",
			TclGetString(objv[index]),
			TclGetString(objv[index+1]), Tcl_PosixError(interp)));
	    }
	    return TCL_ERROR;
	}
    } else {
	if (Tcl_FSConvertToPathType(interp, objv[index]) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (Tcl_UtfToExternalDStringEx(interp, TCLFSENCODING, TclGetString(objv[index]),
		TCL_INDEX_NONE, 0, &ds, NULL) != TCL_OK) {
	    Tcl_DStringFree(&ds);
	    return TCL_ERROR;
	}
	Tcl_DStringFree(&ds);

	/*
	 * Read link
	 */

	contents = Tcl_FSLink(objv[index], NULL, 0);
	if (contents == NULL) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "could not read link \"%s\": %s",
		    TclGetString(objv[index]), Tcl_PosixError(interp)));
	    return TCL_ERROR;
	}
    }
    Tcl_SetObjResult(interp, contents);
    if (objc == 2) {
	/*
	 * If we are reading a link, we need to free this result refCount. If

	return TCL_ERROR;
    }
    Tcl_DStringFree(&ds);

    contents = Tcl_FSLink(objv[1], NULL, 0);

    if (contents == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"could not read link \"%s\": %s",
		TclGetString(objv[1]), Tcl_PosixError(interp)));
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, contents);
    Tcl_DecrRefCount(contents);
    return TCL_OK;
}


     * Deal with results.
     */

    if (chan == NULL) {
	if (nameVarObj) {
	    TclDecrRefCount(nameObj);
	}
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"can't create temporary file: %s", Tcl_PosixError(interp)));
	return TCL_ERROR;
    }
    Tcl_RegisterChannel(interp, chan);
    if (nameVarObj != NULL) {
	if (Tcl_ObjSetVar2(interp, nameVarObj, NULL, nameObj,
		TCL_LEAVE_ERR_MSG) == NULL) {
	    Tcl_UnregisterChannel(interp, chan);
	    return TCL_ERROR;
	}
    }
    Tcl_SetObjResult(interp, Tcl_NewStringObj(Tcl_GetChannelName(chan), -1));
    return TCL_OK;
}

/*
 *---------------------------------------------------------------------------
 *
 * TclFileTempDirCmd --

    }

    /*
     * Deal with results.
     */

    if (dirNameObj == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"can't create temporary directory: %s",
		Tcl_PosixError(interp)));
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, dirNameObj);
    return TCL_OK;
}

/*

	    /*
	     * Do nothing; This is normal operations in Tcl 9.
	     * Keep accepting as a no-op option to accommodate old scripts.
	     */
	    break;
	case GLOB_DIR:				/* -dir */
	    if (i == (objc-1)) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"missing argument to \"-directory\"", -1));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (void *)NULL);
		return TCL_ERROR;
	    }
	    if (dir != PATH_NONE) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			dir == PATH_DIR
			    ? "\"-directory\" may only be used once"
			    : "\"-directory\" cannot be used with \"-path\"",
			-1));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "GLOB",
			"BADOPTIONCOMBINATION", (void *)NULL);
		return TCL_ERROR;
	    }
	    dir = PATH_DIR;
	    globFlags |= TCL_GLOBMODE_DIR;
	    pathOrDir = objv[i+1];
	    i++;
	    break;
	case GLOB_JOIN:				/* -join */
	    join = 1;
	    break;
	case GLOB_TAILS:				/* -tails */
	    globFlags |= TCL_GLOBMODE_TAILS;
	    break;
	case GLOB_PATH:				/* -path */
	    if (i == (objc-1)) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"missing argument to \"-path\"", -1));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (void *)NULL);
		return TCL_ERROR;
	    }
	    if (dir != PATH_NONE) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			dir == PATH_GENERAL
			    ? "\"-path\" may only be used once"
			    : "\"-path\" cannot be used with \"-dictionary\"",
			-1));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "GLOB",
			"BADOPTIONCOMBINATION", (void *)NULL);
		return TCL_ERROR;
	    }
	    dir = PATH_GENERAL;
	    pathOrDir = objv[i+1];
	    i++;
	    break;
	case GLOB_TYPE:				/* -types */
	    if (i == (objc-1)) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"missing argument to \"-types\"", -1));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (void *)NULL);
		return TCL_ERROR;
	    }
	    typePtr = objv[i+1];
	    if (TclListObjLength(interp, typePtr, &length) != TCL_OK) {
		return TCL_ERROR;
	    }
	    i++;
	    break;
	case GLOB_LAST:				/* -- */
	    i++;
	    goto endOfForLoop;
	}
    }

  endOfForLoop:
    if ((globFlags & TCL_GLOBMODE_TAILS) && (pathOrDir == NULL)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"\"-tails\" must be used with either "
		"\"-directory\" or \"-path\"", -1));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "GLOB",
		"BADOPTIONCOMBINATION", (void *)NULL);
	return TCL_ERROR;
    }

    separators = NULL;
    switch (tclPlatform) {

		/*
		 * Error cases. We reset the 'join' flag to zero, since we
		 * haven't yet made use of it.
		 */

	    badTypesArg:
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"bad argument to \"-types\": %s",
			TclGetString(look)));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "BAD", (void *)NULL);
		result = TCL_ERROR;
		join = 0;
		goto endOfGlob;

	    badMacTypesArg:
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"only one MacOS type or creator argument"
			" to \"-types\" allowed", -1));
		result = TCL_ERROR;
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "BAD", (void *)NULL);
		join = 0;
		goto endOfGlob;
	    }
	}
    }

		/*
		 * Balanced braces.
		 */

		closeBrace = p;
		break;
	    }
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "unmatched open-brace in file name", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "GLOB", "BALANCE",
		    (void *)NULL);
	    return TCL_ERROR;

	} else if (*p == '}') {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "unmatched close-brace in file name", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "GLOB", "BALANCE",
		    (void *)NULL);
	    return TCL_ERROR;
	}
    }

    /*

{
    ChannelState *statePtr;	/* State of the real channel. */

    statePtr = ((Channel *) chan)->state->bottomChanPtr->state;

    if (GotFlag(statePtr, CHANNEL_INCLOSE)) {
	if (interp != NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "illegal recursive call to close through close-handler"
		    " of channel", -1));
	}
	return TCL_ERROR;
    }

    if (DetachChannel(interp, chan) != TCL_OK) {
	return TCL_OK;
    }

	    name = chanPtr->state->channelName;
	}
    }

    hTblPtr = GetChannelTable(interp);
    hPtr = Tcl_FindHashEntry(hTblPtr, name);
    if (hPtr == NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"can not find channel named \"%s\"", chanName));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "CHANNEL", chanName, (char *)NULL);
	return NULL;
    }

    /*
     * Always return bottom-most channel in the stack. This one lives the
     * longest - other channels may go away unnoticed. The other APIs

    while ((statePtr != NULL) && (statePtr->topChanPtr != prevChanPtr)) {
	statePtr = statePtr->nextCSPtr;
    }

    if (statePtr == NULL) {
	if (interp) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "couldn't find state for channel \"%s\"",
		    Tcl_GetChannelName(prevChan)));
	}
	return NULL;
    }

    /*
     * Here we check if the given "mask" matches the "flags" of the already
     * existing channel.
     *
     *	  | - | R | W | RW |
     *	--+---+---+---+----+	<=>  0 != (chan->mask & prevChan->mask)
     *	- |   |   |   |    |
     *	R |   | + |   | +  |	The superceding channel is allowed to restrict
     *	W |   |   | + | +  |	the capabilities of the superceded one!
     *	RW|   | + | + | +  |
     *	--+---+---+---+----+
     */

    if ((mask & GotFlag(statePtr, TCL_READABLE|TCL_WRITABLE)) == 0) {
	if (interp) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "reading and writing both disallowed for channel \"%s\"",
		    Tcl_GetChannelName(prevChan)));
	}
	return NULL;
    }

    /*
     * Flush the buffers. This ensures that any data still in them at this
     * time is not handled by the new transformation. Restrict this to

	 * TODO: Examine what can go wrong if Tcl_Flush() call disturbs
	 * the stacking state of this channel during its operations.
	 */
	if (Tcl_Flush((Tcl_Channel) prevChanPtr) != TCL_OK) {
	    statePtr->csPtrR = csPtrR;
	    statePtr->csPtrW = csPtrW;
	    if (interp) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"could not flush channel \"%s\"",
			Tcl_GetChannelName(prevChan)));
	    }
	    return NULL;
	}

	statePtr->csPtrR = csPtrR;
	statePtr->csPtrW = csPtrW;
    }

		 * Move error messages put by the driver into the chan/ip
		 * bypass area into the regular interpreter result. Fall back
		 * to the regular message if nothing was found in the
		 * bypasses.
		 */

		if (!TclChanCaughtErrorBypass(interp, chan) && interp) {
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			    "could not flush channel \"%s\"",
			    Tcl_GetChannelName((Tcl_Channel) chanPtr)));
		}
		return TCL_ERROR;
	    }

	    statePtr->csPtrR  = csPtrR;
	    statePtr->csPtrW = csPtrW;
	}

    }

    ResetFlag(statePtr, mode);
    return TCL_OK;

 error:
    if (interp != NULL) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"Tcl_RemoveChannelMode error: %s. Channel: \"%s\"",
		emsg, Tcl_GetChannelName((Tcl_Channel) chan)));
    }
    return TCL_ERROR;
}

/*
 *---------------------------------------------------------------------------
 *

{
    if (!GotFlag(statePtr, CHANNEL_DEAD)) {
	return 0;
    }

    Tcl_SetErrno(EINVAL);
    if (interp) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"unable to access channel: invalid channel", -1));
    }
    return 1;
}

/*
 *----------------------------------------------------------------------
 *

		 * area into the regular interpreter result. Fall back to the
		 * regular message if nothing was found in the bypasses.
		 */

		Tcl_SetErrno(errorCode);
		if (interp != NULL && !TclChanCaughtErrorBypass(interp,
			(Tcl_Channel) chanPtr)) {
		    Tcl_SetObjResult(interp,
			    Tcl_NewStringObj(Tcl_PosixError(interp), -1));
		}

		/*
		 * An unreportable bypassed message is kept, for the caller of
		 * Tcl_Seek, Tcl_Write, etc.
		 */
	    }

    if (statePtr->refCount > 0) {
	Tcl_Panic("called Tcl_Close on channel with refCount > 0");
    }

    if (GotFlag(statePtr, CHANNEL_INCLOSE)) {
	if (interp) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "illegal recursive call to close through close-handler"
		    " of channel", -1));
	}
	return TCL_ERROR;
    }
    SetFlag(statePtr, CHANNEL_INCLOSE);

    /*
     * When the channel has an escape sequence driven encoding such as