}
declare 218 {
    int Tcl_ScanElement(const char *src, int *flagPtr)
}
declare 219 {
    int Tcl_ScanCountedElement(const char *src, int length, int *flagPtr)
}

declare 220 {
    TCL_SIZE_T Tcl_Seek(Tcl_Channel chan, TCL_SIZE_T offset, int mode)

}
declare 221 {
    int Tcl_ServiceAll(void)
}
declare 222 {
    int Tcl_ServiceEvent(int flags)
}
declare 223 {

declare 244 {
    void Tcl_StaticPackage(Tcl_Interp *interp, const char *pkgName,
	    Tcl_PackageInitProc *initProc, Tcl_PackageInitProc *safeInitProc)
}
declare 245 {
    int Tcl_StringMatch(const char *str, const char *pattern)
}

declare 246 {
    TCL_SIZE_T Tcl_Tell(Tcl_Channel chan)

}
declare 247 {
    int Tcl_TraceVar(Tcl_Interp *interp, const char *varName, int flags,
	    Tcl_VarTraceProc *proc, ClientData clientData)
}
declare 248 {
    int Tcl_TraceVar2(Tcl_Interp *interp, const char *part1, const char *part2,
	    int flags, Tcl_VarTraceProc *proc, ClientData clientData)

}
declare 489 {
    void Tcl_SetWideIntObj(Tcl_Obj *objPtr, Tcl_WideInt wideValue)
}
declare 490 {
    Tcl_StatBuf *Tcl_AllocStatBuf(void)
}
# Kept on Tcl9, for binary compatibility with Tcl8
declare 491 {
    Tcl_WideInt Tcl_SeekOld(Tcl_Channel chan, Tcl_WideInt offset, int mode)
}
# Kept on Tcl9, for binary compatibility with Tcl8
declare 492 {
    Tcl_WideInt Tcl_TellOld(Tcl_Channel chan)
}

# TIP#91 (back-compat enhancements for channels) dkf
declare 493 {
    Tcl_DriverWideSeekProc *Tcl_ChannelWideSeekProc(
	    const Tcl_ChannelType *chanTypePtr)
}

/*
 * TIP #218: Channel Actions, Ids for Tcl_DriverThreadActionProc.
 */

#define TCL_CHANNEL_THREAD_INSERT (0)
#define TCL_CHANNEL_THREAD_REMOVE (1)

/*
 * Still to be TIPped.
 *
 * Actual definition could be size_t, ssize_t, int,
 * unsigned int, __int64, __uint64. Still to be
 * decided. Can be overridden with -DTCL_SIZE_T=<whatever>.
 *
 * However, anything different than size_t, ssize_t or
 * ptrdiff_t will result in stub tables incompatible with
 * Tcl 9. Anything different than int or unsigned int will
 * result in stub tables incompatible with Tcl 8. So, on
 * platforms where sizeof(int) != sizeof(size_t) it is
 * impossible to create an extensions which is compatible
 * with both Tcl8 and Tcl9.
 */

#ifndef TCL_SIZE_T
#   define TCL_SIZE_T int /* should be size_t or ssize_t */
#endif
#define TCL_NOSIZE ((TCL_SIZE_T)-1)

/*
 * Typedefs for the various operations in a channel type:
 */

typedef int	(Tcl_DriverBlockModeProc) (ClientData instanceData, int mode);
typedef int	(Tcl_DriverCloseProc) (ClientData instanceData,
			Tcl_Interp *interp);

	}
	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", TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "OPERAND>=2", NULL);
	    }
	    goto cleanup;
	}
	BBEmitInstInt4(assemEnvPtr, tblIdx, opnd, opnd);
	break;

    if (Tcl_ListObjGetElements(interp, jumps, &objc, &objv) != 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",
		    TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADJUMPTABLE", NULL);
	}
	return TCL_ERROR;
    }

    /*
     * Allocate the jumptable.

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

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

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

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", TCL_NOSIZE);
	Tcl_SetObjResult(interp, result);
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "1BYTE", NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}


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", TCL_NOSIZE);
	Tcl_SetObjResult(interp, result);
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "1BYTE", NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}


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", TCL_NOSIZE);
	Tcl_SetObjResult(interp, result);
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "NONNEGATIVE", NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}


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", TCL_NOSIZE);
	Tcl_SetObjResult(interp, result);
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "POSITIVE", NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}


	 */

	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", TCL_NOSIZE));

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

	    Tcl_SetErrorLine(interp, blockPtr->startLine);
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACK", 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", TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACK", 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", TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACKINCATCH", -1);
	    AddBasicBlockRangeToErrorInfo(assemEnvPtr, blockPtr);
	    Tcl_SetErrorLine(interp, blockPtr->startLine);
	}
	return TCL_ERROR;
    }

    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", TCL_NOSIZE));
	    Tcl_SetErrorLine(interp, bbPtr->startLine);
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADCATCH", 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", TCL_NOSIZE));
		Tcl_SetErrorLine(interp, bbPtr->startLine);
		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADENDCATCH", NULL);
	    }
	    return TCL_ERROR;
	}
	fallThruEnclosing = enclosing->enclosingCatch;
	fallThruState = enclosing->catchState;

				/* 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", TCL_NOSIZE));
	    Tcl_SetErrorLine(interp,
		    assemEnvPtr->curr_bb->enclosingCatch->startLine);
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "UNCLOSEDCATCH", NULL);
	}
	return TCL_ERROR;
    }
    return TCL_OK;

     * 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)", TCL_NOSIZE));
        Tcl_SetErrorCode(interp, "TCL", "VALUE", "HIDDENTOKEN", 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

    /*
     * 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)",
                TCL_NOSIZE));
        Tcl_SetErrorCode(interp, "TCL", "HIDE", "NON_GLOBAL", NULL);
	return TCL_ERROR;
    }

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

     * 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)",
                TCL_NOSIZE));
        Tcl_SetErrorCode(interp, "TCL", "EXPOSE", "NON_GLOBAL", NULL);
	return TCL_ERROR;
    }

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

	/*
	 * This case is theoritically impossible, we might rather Tcl_Panic
	 * than 'nicely' erroring out ?
	 */

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

    /*
     * This is the global table.
     */

     * The trace function needs to get a fully qualified name for old and new
     * commands [Tcl bug #651271], or else there's no way for the trace
     * function to get the namespace from which the old command is being
     * renamed!
     */

    Tcl_DStringInit(&newFullName);
    Tcl_DStringAppend(&newFullName, newNsPtr->fullName, TCL_NOSIZE);
    if (newNsPtr != iPtr->globalNsPtr) {
	TclDStringAppendLiteral(&newFullName, "::");
    }
    Tcl_DStringAppend(&newFullName, newTail, TCL_NOSIZE);
    cmdPtr->refCount++;
    CallCommandTraces(iPtr, cmdPtr, Tcl_GetString(oldFullName),
	    Tcl_DStringValue(&newFullName), TCL_TRACE_RENAME);
    Tcl_DStringFree(&newFullName);

    /*
     * The new command name is okay, so remove the command from its current

    /*
     * Add the full name of the containing namespace, followed by the "::"
     * separator, and the command name.
     */

    if (cmdPtr != NULL) {
	if (cmdPtr->nsPtr != NULL) {
	    Tcl_AppendToObj(objPtr, cmdPtr->nsPtr->fullName, TCL_NOSIZE);
	    if (cmdPtr->nsPtr != iPtr->globalNsPtr) {
		Tcl_AppendToObj(objPtr, "::", 2);
	    }
	}
	if (cmdPtr->hPtr != NULL) {
	    name = Tcl_GetHashKey(cmdPtr->hPtr->tablePtr, cmdPtr->hPtr);
	    Tcl_AppendToObj(objPtr, name, TCL_NOSIZE);
	}
    }
}

/*
 *----------------------------------------------------------------------
 *

    /*
     * 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", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "IDELETE",
		"attempt to call eval in deleted interpreter", NULL);
	return TCL_ERROR;
    }

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

     */

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

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

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

        Tcl_SetObjResult(interp, Tcl_NewStringObj(message, TCL_NOSIZE));
        Tcl_SetErrorCode(interp, "TCL", "CANCEL", id, message, 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.

 */

int
Tcl_EvalEx(
    Tcl_Interp *interp,		/* Interpreter in which to evaluate the
				 * script. Also used for error reporting. */
    const char *script,		/* First character of script to evaluate. */
    int numBytes,		/* Number of bytes in script. If TCL_NOSIZE, the
				 * script consists of all bytes up to the
				 * first null character. */
    int flags)			/* Collection of OR-ed bits that control the
				 * evaluation of the script. Only
				 * TCL_EVAL_GLOBAL is currently supported. */
{
    return TclEvalEx(interp, script, numBytes, flags, 1, NULL, script);

	if (clNextOuter) {
	    clNext = clNextOuter;
	} else {
	    clNext = &iPtr->scriptCLLocPtr->loc[0];
	}
    }

    if (numBytes == TCL_NOSIZE) {
	numBytes = strlen(script);
    }
    Tcl_ResetResult(interp);

    savedVarFramePtr = iPtr->varFramePtr;
    if (flags & TCL_EVAL_GLOBAL) {
	iPtr->varFramePtr = iPtr->rootFramePtr;

int
Tcl_Eval(
    Tcl_Interp *interp,		/* Token for command interpreter (returned by
				 * previous call to Tcl_CreateInterp). */
    const char *script)		/* Pointer to TCL command to execute. */
{
    int code = Tcl_EvalEx(interp, script, TCL_NOSIZE, 0);

    /*
     * For backwards compatibility with old C code that predates the object
     * system in Tcl 8.0, we have to mirror the object result back into the
     * string result (some callers may expect it there).
     */

    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", TCL_NOSIZE));
    } else if (returnCode == TCL_CONTINUE) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"invoked \"continue\" outside of a loop", TCL_NOSIZE));
    } else {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"command returned bad code: %d", returnCode));
    }
    sprintf(buf, "%d", returnCode);
    Tcl_SetErrorCode(interp, "TCL", "UNEXPECTED_RESULT_CODE", buf, NULL);
}

    if (*exprstring == '\0') {
	/*
	 * Legacy compatibility - return 0 for the zero-length string.
	 */

	*ptr = 0;
    } else {
	exprPtr = Tcl_NewStringObj(exprstring, TCL_NOSIZE);
	Tcl_IncrRefCount(exprPtr);
	result = Tcl_ExprLongObj(interp, exprPtr, ptr);
	Tcl_DecrRefCount(exprPtr);
	if (result != TCL_OK) {
	    (void) Tcl_GetStringResult(interp);
	}
    }

    if (*exprstring == '\0') {
	/*
	 * Legacy compatibility - return 0 for the zero-length string.
	 */

	*ptr = 0.0;
    } else {
	exprPtr = Tcl_NewStringObj(exprstring, TCL_NOSIZE);
	Tcl_IncrRefCount(exprPtr);
	result = Tcl_ExprDoubleObj(interp, exprPtr, ptr);
	Tcl_DecrRefCount(exprPtr);
				/* Discard the expression object. */
	if (result != TCL_OK) {
	    (void) Tcl_GetStringResult(interp);
	}

	 * An empty string. Just set the result boolean to 0 (false).
	 */

	*ptr = 0;
	return TCL_OK;
    } else {
	int result;
	Tcl_Obj *exprPtr = Tcl_NewStringObj(exprstring, TCL_NOSIZE);

	Tcl_IncrRefCount(exprPtr);
	result = Tcl_ExprBooleanObj(interp, exprPtr, ptr);
	Tcl_DecrRefCount(exprPtr);
	if (result != TCL_OK) {
	    /*
	     * Move the interpreter's object result to the string result, then

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

    if ((objc < 1) || (objv == NULL)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
                "illegal argument vector", TCL_NOSIZE));
	return TCL_ERROR;
    }

    if ((flags & TCL_INVOKE_HIDDEN) == 0) {
	Tcl_Panic("TclObjInvoke: called without TCL_INVOKE_HIDDEN");
    }

    if (expr[0] == '\0') {
	/*
	 * An empty string. Just set the interpreter's result to 0.
	 */

	Tcl_SetObjResult(interp, Tcl_NewIntObj(0));
    } else {
	Tcl_Obj *resultPtr, *exprObj = Tcl_NewStringObj(expr, TCL_NOSIZE);

	Tcl_IncrRefCount(exprObj);
	code = Tcl_ExprObj(interp, exprObj, &resultPtr);
	Tcl_DecrRefCount(exprObj);
	if (code == TCL_OK) {
	    Tcl_SetObjResult(interp, resultPtr);
	    Tcl_DecrRefCount(resultPtr);

void
Tcl_AddErrorInfo(
    Tcl_Interp *interp,		/* Interpreter to which error information
				 * pertains. */
    const char *message)	/* Message to record. */
{
    Tcl_AddObjErrorInfo(interp, message, TCL_NOSIZE);
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_AddObjErrorInfo --
 *
 *	Add information to the errorInfo field that describes the current
 *	error. This routine differs from Tcl_AddErrorInfo by taking a byte
 *	pointer and length.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	"length" bytes from "message" are appended to the errorInfo field. If
 *	"length" is TCL_NOSIZE, use bytes up to the first NULL byte. If we are
 *	just starting to log an error, errorInfo is initialized from the error
 *	message in the interpreter's result.
 *
 *----------------------------------------------------------------------
 */

void
Tcl_AddObjErrorInfo(
    Tcl_Interp *interp,		/* Interpreter to which error information
				 * pertains. */
    const char *message,	/* Points to the first byte of an array of
				 * bytes of the message. */
    int length)			/* The number of bytes in the message. If TCL_NOSIZE,
				 * then append all bytes up to a NULL byte. */
{
    register Interp *iPtr = (Interp *) interp;

    /*
     * If we are just starting to log an error, errorInfo is initialized from
     * the error message in the interpreter's result.
     */

    iPtr->flags |= ERR_LEGACY_COPY;
    if (iPtr->errorInfo == NULL) {
	if (iPtr->result[0] != 0) {
	    /*
	     * The interp's string result is set, apparently by some extension
	     * making a deprecated direct write to it. That extension may
	     * expect interp->result to continue to be set, so we'll take
	     * special pains to avoid clearing it, until we drop support for
	     * interp->result completely.
	     */

	    iPtr->errorInfo = Tcl_NewStringObj(iPtr->result, TCL_NOSIZE);
	} else {
	    iPtr->errorInfo = iPtr->objResultPtr;
	}
	Tcl_IncrRefCount(iPtr->errorInfo);
	if (!iPtr->errorCode) {
	    Tcl_SetErrorCode(interp, "NONE", NULL);
	}

    Tcl_DStringInit(&buf);
    while (1) {
	string = va_arg(argList, char *);
	if (string == NULL) {
	    break;
	}
	Tcl_DStringAppend(&buf, string, TCL_NOSIZE);
    }

    result = Tcl_Eval(interp, Tcl_DStringValue(&buf));
    Tcl_DStringFree(&buf);
    return result;
}


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

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

static int
ExprSqrtFunc(

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

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

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

        Tcl_Namespace *nsPtr = (Tcl_Namespace *) iPtr->varFramePtr->nsPtr;
        Tcl_Namespace *ns1Ptr;
        NRE_callback *tailcallPtr;

        listPtr = Tcl_NewListObj(objc-1, objv+1);
        Tcl_IncrRefCount(listPtr);

        nsObjPtr = Tcl_NewStringObj(nsPtr->fullName, TCL_NOSIZE);
        if ((TCL_OK != TclGetNamespaceFromObj(interp, nsObjPtr, &ns1Ptr))
                || (nsPtr != ns1Ptr)) {
            Tcl_Panic("Tailcall failed to find the proper namespace");
        }
        Tcl_IncrRefCount(nsObjPtr);

        TclNRAddCallback(interp, TclNRTailcallEval, listPtr, nsObjPtr,

    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", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ILLEGAL_YIELD", 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", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ILLEGAL_YIELD", NULL);
	return TCL_ERROR;
    }

    /*
     * Add the tailcall in the caller env, then just yield.
     *
     * This is essentially code from TclNRTailcallObjCmd
     */

    listPtr = Tcl_NewListObj(objc-1, objv+1);
    Tcl_IncrRefCount(listPtr);

    nsObjPtr = Tcl_NewStringObj(nsPtr->fullName, TCL_NOSIZE);
    if ((TCL_OK != TclGetNamespaceFromObj(interp, nsObjPtr, &ns1Ptr))
	    || (nsPtr != ns1Ptr)) {
	Tcl_Panic("yieldto failed to find the proper namespace");
    }
    Tcl_IncrRefCount(nsObjPtr);

    /*

    } else {
        /*
         * Coroutine is active: yield
         */

        if (corPtr->stackLevel != stackLevel) {
            Tcl_SetObjResult(interp, Tcl_NewStringObj(
                    "cannot yield: C stack busy", TCL_NOSIZE));
            Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "CANT_YIELD",
                    NULL);
            return TCL_ERROR;
        }

        if (type == CORO_ACTIVATE_YIELD) {
            corPtr->nargs = COROUTINE_ARGUMENTS_SINGLE_OPTIONAL;

	Tcl_WrongNumArgs(interp, 1, objv, "coroName cmd ?arg1 arg2 ...?");
	return TCL_ERROR;
    }

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

    corPtr = cmdPtr->objClientData;
    if (!COR_IS_SUSPENDED(corPtr)) {
        Tcl_SetObjResult(interp, Tcl_NewStringObj(
                "can only inject a command into a suspended coroutine", TCL_NOSIZE));
        Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ACTIVE", 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.

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

     * struct and create the corresponding command.
     */

    corPtr = ckalloc(sizeof(CoroutineData));

    Tcl_DStringInit(&ds);
    if (nsPtr != iPtr->globalNsPtr) {
	Tcl_DStringAppend(&ds, nsPtr->fullName, TCL_NOSIZE);
	TclDStringAppendLiteral(&ds, "::");
    }
    Tcl_DStringAppend(&ds, procName, TCL_NOSIZE);

    cmdPtr = (Command *) Tcl_NRCreateCommand(interp, Tcl_DStringValue(&ds),
	    /*objProc*/ NULL, TclNRInterpCoroutine, corPtr, DeleteCoroutine);
    Tcl_DStringFree(&ds);

    corPtr->cmdPtr = cmdPtr;
    cmdPtr->refCount++;

		arg++;

		if (count == BINARY_ALL) {
		    count = listc;
		} else if (count > listc) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "number of elements in list does not match count",
			    TCL_NOSIZE));
		    return TCL_ERROR;
		}
	    }
	    offset += count*size;
	    break;

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

	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, TCL_NOSIZE));
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * BinaryScanCmd --

	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, TCL_NOSIZE));
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * GetFormatSpec --

	    (unsigned long)current_bytes_malloced,
	    maximum_malloc_packets,
	    (unsigned long)maximum_bytes_malloced);
    if (flags == 0) {
	fprintf((FILE *)clientData, "%s", buf);
    } else {
	/* Assume objPtr to append to */
	Tcl_AppendToObj((Tcl_Obj *) clientData, buf, TCL_NOSIZE);
    }
    return 1;
}

/*
 *----------------------------------------------------------------------
 *

     * Create the client data, which is a refcounted literal pool.
     */

    data = ckalloc(sizeof(ClockClientData));
    data->refCount = 0;
    data->literals = ckalloc(LIT__END * sizeof(Tcl_Obj*));
    for (i = 0; i < LIT__END; ++i) {
	data->literals[i] = Tcl_NewStringObj(literals[i], TCL_NOSIZE);
	Tcl_IncrRefCount(data->literals[i]);
    }

    /*
     * Install the commands.
     */

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

    /*
     * 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_NOSIZE));
	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_NOSIZE));
	Tcl_SetErrorCode(interp, "CLOCK", "argTooLarge", 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_NOSIZE));
	Tcl_SetErrorCode(interp, "CLOCK", "localtimeFailed", NULL);
	return TCL_ERROR;
    }

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

    sprintf(buffer+1, "%02d", diff / 3600);
    diff %= 3600;
    sprintf(buffer+3, "%02d", diff / 60);
    diff %= 60;
    if (diff > 0) {
	sprintf(buffer+5, "%02d", diff);
    }
    fields->tzName = Tcl_NewStringObj(buffer, TCL_NOSIZE);
    Tcl_IncrRefCount(fields->tzName);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *

	return TCL_ERROR;
    }
    varName = TclGetString(objv[1]);
    varValue = getenv(varName);
    if (varValue == NULL) {
	varValue = "";
    }
    Tcl_SetObjResult(interp, Tcl_NewStringObj(varValue, TCL_NOSIZE));
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * ThreadSafeLocalTime --

    case ENC_SYSTEM:
	if (objc > 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "?encoding?");
	    return TCL_ERROR;
	}
	if (objc == 2) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    Tcl_GetEncodingName(NULL), TCL_NOSIZE));
	} else {
	    return Tcl_SetSystemEncoding(interp, TclGetString(objv[2]));
	}
	break;
    }
    return TCL_OK;
}

    Tcl_DStringInit(&newBuf);
    TclDStringAppendLiteral(&newBuf, "tcl:file:");
    for (i=0 ; unsafeInfo[i].cmdName != NULL ; i++) {
	if (unsafeInfo[i].unsafe) {
	    const char *oldName, *newName;

	    Tcl_DStringSetLength(&oldBuf, 13);
	    oldName = Tcl_DStringAppend(&oldBuf, unsafeInfo[i].cmdName, TCL_NOSIZE);
	    Tcl_DStringSetLength(&newBuf, 9);
	    newName = Tcl_DStringAppend(&newBuf, unsafeInfo[i].cmdName, TCL_NOSIZE);
	    if (TclRenameCommand(interp, oldName, "___tmp") != TCL_OK
		    || Tcl_HideCommand(interp, "___tmp", newName) != TCL_OK) {
		Tcl_Panic("problem making 'file %s' safe: %s",
			unsafeInfo[i].cmdName,
			Tcl_GetString(Tcl_GetObjResult(interp)));
	    }
	    Tcl_CreateObjCommand(interp, oldName, BadFileSubcommand,

	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), TCL_NOSIZE));
    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", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "FILESYSTEM",
		Tcl_GetString(objv[1]), NULL);
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, fsInfo);
    return TCL_OK;
}

	}
	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", TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "FILESYSTEM",
		    Tcl_GetString(objv[1]), NULL);
	    return TCL_ERROR;
	}
	Tcl_SetObjResult(interp, separatorObj);
    }
    return TCL_OK;

    STORE_ARY("blksize", Tcl_NewLongObj((long)statPtr->st_blksize));
#endif
    STORE_ARY("atime",	Tcl_NewLongObj((long)statPtr->st_atime));
    STORE_ARY("mtime",	Tcl_NewLongObj((long)statPtr->st_mtime));
    STORE_ARY("ctime",	Tcl_NewLongObj((long)statPtr->st_ctime));
    mode = (unsigned short) statPtr->st_mode;
    STORE_ARY("mode",	Tcl_NewIntObj(mode));
    STORE_ARY("type",	Tcl_NewStringObj(GetTypeFromMode(mode), TCL_NOSIZE));
#undef STORE_ARY

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

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

     */

    listObjPtr = Tcl_NewListObj(0, NULL);
    for (localPtr = procPtr->firstLocalPtr;  localPtr != NULL;
	    localPtr = localPtr->nextPtr) {
	if (TclIsVarArgument(localPtr)) {
	    Tcl_ListObjAppendElement(interp, listObjPtr,
		    Tcl_NewStringObj(localPtr->name, TCL_NOSIZE));
	}
    }
    Tcl_SetObjResult(interp, listObjPtr);
    return TCL_OK;
}

/*

	if (entryPtr != NULL) {
	    if (specificNsInPattern) {
		cmd = Tcl_GetHashValue(entryPtr);
		elemObjPtr = Tcl_NewObj();
		Tcl_GetCommandFullName(interp, cmd, elemObjPtr);
	    } else {
		cmdName = Tcl_GetHashKey(&nsPtr->cmdTable, entryPtr);
		elemObjPtr = Tcl_NewStringObj(cmdName, TCL_NOSIZE);
	    }
	    Tcl_ListObjAppendElement(interp, listPtr, elemObjPtr);
	    Tcl_SetObjResult(interp, listPtr);
	    return TCL_OK;
	}
	if ((nsPtr != globalNsPtr) && !specificNsInPattern) {
	    Tcl_HashTable *tablePtr = NULL;	/* Quell warning. */

	    if (entryPtr == NULL) {
		tablePtr = &globalNsPtr->cmdTable;
		entryPtr = Tcl_FindHashEntry(tablePtr, simplePattern);
	    }
	    if (entryPtr != NULL) {
		cmdName = Tcl_GetHashKey(tablePtr, entryPtr);
		Tcl_ListObjAppendElement(interp, listPtr,
			Tcl_NewStringObj(cmdName, TCL_NOSIZE));
		Tcl_SetObjResult(interp, listPtr);
		return TCL_OK;
	    }
	}
    } else if (nsPtr->commandPathLength == 0 || specificNsInPattern) {
	/*
	 * The pattern is non-trivial, but either there is no explicit path or

	    if ((simplePattern == NULL)
		    || Tcl_StringMatch(cmdName, simplePattern)) {
		if (specificNsInPattern) {
		    cmd = Tcl_GetHashValue(entryPtr);
		    elemObjPtr = Tcl_NewObj();
		    Tcl_GetCommandFullName(interp, cmd, elemObjPtr);
		} else {
		    elemObjPtr = Tcl_NewStringObj(cmdName, TCL_NOSIZE);
		}
		Tcl_ListObjAppendElement(interp, listPtr, elemObjPtr);
	    }
	    entryPtr = Tcl_NextHashEntry(&search);
	}

	/*

	    entryPtr = Tcl_FirstHashEntry(&globalNsPtr->cmdTable, &search);
	    while (entryPtr != NULL) {
		cmdName = Tcl_GetHashKey(&globalNsPtr->cmdTable, entryPtr);
		if ((simplePattern == NULL)
			|| Tcl_StringMatch(cmdName, simplePattern)) {
		    if (Tcl_FindHashEntry(&nsPtr->cmdTable,cmdName) == NULL) {
			Tcl_ListObjAppendElement(interp, listPtr,
				Tcl_NewStringObj(cmdName, TCL_NOSIZE));
		    }
		}
		entryPtr = Tcl_NextHashEntry(&search);
	    }
	}
    } else {
	/*

	Tcl_InitObjHashTable(&addedCommandsTable);

	entryPtr = Tcl_FirstHashEntry(&nsPtr->cmdTable, &search);
	while (entryPtr != NULL) {
	    cmdName = Tcl_GetHashKey(&nsPtr->cmdTable, entryPtr);
	    if ((simplePattern == NULL)
		    || Tcl_StringMatch(cmdName, simplePattern)) {
		elemObjPtr = Tcl_NewStringObj(cmdName, TCL_NOSIZE);
		Tcl_ListObjAppendElement(interp, listPtr, elemObjPtr);
		(void) Tcl_CreateHashEntry(&addedCommandsTable,
			elemObjPtr, &isNew);
	    }
	    entryPtr = Tcl_NextHashEntry(&search);
	}

		foundGlobal = 1;
	    }
	    entryPtr = Tcl_FirstHashEntry(&pathNsPtr->cmdTable, &search);
	    while (entryPtr != NULL) {
		cmdName = Tcl_GetHashKey(&pathNsPtr->cmdTable, entryPtr);
		if ((simplePattern == NULL)
			|| Tcl_StringMatch(cmdName, simplePattern)) {
		    elemObjPtr = Tcl_NewStringObj(cmdName, TCL_NOSIZE);
		    (void) Tcl_CreateHashEntry(&addedCommandsTable,
			    elemObjPtr, &isNew);
		    if (isNew) {
			Tcl_ListObjAppendElement(interp, listPtr, elemObjPtr);
		    } else {
			TclDecrRefCount(elemObjPtr);
		    }

	if (!foundGlobal) {
	    entryPtr = Tcl_FirstHashEntry(&globalNsPtr->cmdTable, &search);
	    while (entryPtr != NULL) {
		cmdName = Tcl_GetHashKey(&globalNsPtr->cmdTable, entryPtr);
		if ((simplePattern == NULL)
			|| Tcl_StringMatch(cmdName, simplePattern)) {
		    elemObjPtr = Tcl_NewStringObj(cmdName, TCL_NOSIZE);
		    if (Tcl_FindHashEntry(&addedCommandsTable,
			    (char *) elemObjPtr) == NULL) {
			Tcl_ListObjAppendElement(interp, listPtr, elemObjPtr);
		    } else {
			TclDecrRefCount(elemObjPtr);
		    }
		}

    switch (framePtr->type) {
    case TCL_LOCATION_EVAL:
	/*
	 * Evaluation, dynamic script. Type, line, cmd, the latter through
	 * str.
	 */

	ADD_PAIR("type", Tcl_NewStringObj(typeString[framePtr->type], TCL_NOSIZE));
	ADD_PAIR("line", Tcl_NewIntObj(framePtr->line[0]));
	ADD_PAIR("cmd", Tcl_NewStringObj(framePtr->cmd.str.cmd,
		framePtr->cmd.str.len));
	break;

    case TCL_LOCATION_EVAL_LIST:
	/*
	 * List optimized evaluation. Type, line, cmd, the latter through
	 * listPtr, possibly a frame.
	 */

	ADD_PAIR("type", Tcl_NewStringObj(typeString[framePtr->type], TCL_NOSIZE));
	ADD_PAIR("line", Tcl_NewIntObj(1));

	/*
	 * We put a duplicate of the command list obj into the result to
	 * ensure that the 'pure List'-property of the command itself is not
	 * destroyed. Otherwise the query here would disable the list
	 * optimization path in Tcl_EvalObjEx.
	 */

	ADD_PAIR("cmd", Tcl_DuplicateObj(framePtr->cmd.listPtr));
	break;

    case TCL_LOCATION_PREBC:
	/*
	 * Precompiled. Result contains the type as signal, nothing else.
	 */

	ADD_PAIR("type", Tcl_NewStringObj(typeString[framePtr->type], TCL_NOSIZE));
	break;

    case TCL_LOCATION_BC: {
	/*
	 * Execution of bytecode. Talk to the BC engine to fill out the frame.
	 */

	TclGetSrcInfoForPc(fPtr);

	/*
	 * Now filled: cmd.str.(cmd,len), line
	 * Possibly modified: type, path!
	 */

	ADD_PAIR("type", Tcl_NewStringObj(typeString[fPtr->type], TCL_NOSIZE));
	if (fPtr->line) {
	    ADD_PAIR("line", Tcl_NewIntObj(fPtr->line[0]));
	}

	if (fPtr->type == TCL_LOCATION_SOURCE) {
	    ADD_PAIR("file", fPtr->data.eval.path);

    }

    case TCL_LOCATION_SOURCE:
	/*
	 * Evaluation of a script file.
	 */

	ADD_PAIR("type", Tcl_NewStringObj(typeString[framePtr->type], TCL_NOSIZE));
	ADD_PAIR("line", Tcl_NewIntObj(framePtr->line[0]));
	ADD_PAIR("file", framePtr->data.eval.path);

	/*
	 * Refcount framePtr->data.eval.path goes up when lv is converted into
	 * the result list object.
	 */

	    /*
	     * This is a non-standard command. Luckily, it's told us how to
	     * render extra information about its frame.
	     */

	    for (i=0 ; i<efiPtr->length ; i++) {
		lv[lc++] = Tcl_NewStringObj(efiPtr->fields[i].name, TCL_NOSIZE);
		if (efiPtr->fields[i].proc) {
		    lv[lc++] =
			efiPtr->fields[i].proc(efiPtr->fields[i].clientData);
		} else {
		    lv[lc++] = efiPtr->fields[i].clientData;
		}
	    }

"		::foreach cmd [::info commands tcl::mathfunc::$pattern] {\n"
"		    ::set cmd [::namespace tail $cmd]\n"
"		    ::if {$cmd ni $cmds} {\n"
"			::lappend cmds $cmd\n"
"		    }\n"
"		}\n"
"		::return $cmds\n"
"	    } [::namespace current]] ", TCL_NOSIZE);

    if (objc == 2) {
	Tcl_Obj *arg = Tcl_NewListObj(1, &(objv[1]));

	Tcl_AppendObjToObj(script, arg);
	Tcl_DecrRefCount(arg);
    }

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

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

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

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

    libDirName = Tcl_GetVar(interp, "tcl_library", TCL_GLOBAL_ONLY);
    if (libDirName != NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(libDirName, TCL_NOSIZE));
	return TCL_OK;
    }

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

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

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

	    } else {
	    simpleProcOK:
		if (specificNsInPattern) {
		    elemObjPtr = Tcl_NewObj();
		    Tcl_GetCommandFullName(interp, (Tcl_Command) cmdPtr,
			    elemObjPtr);
		} else {
		    elemObjPtr = Tcl_NewStringObj(simplePattern, TCL_NOSIZE);
		}
		Tcl_ListObjAppendElement(interp, listPtr, elemObjPtr);
	    }
	}
    } else
#endif /* !INFO_PROCS_SEARCH_GLOBAL_NS */
    {

		} else {
		procOK:
		    if (specificNsInPattern) {
			elemObjPtr = Tcl_NewObj();
			Tcl_GetCommandFullName(interp, (Tcl_Command) cmdPtr,
				elemObjPtr);
		    } else {
			elemObjPtr = Tcl_NewStringObj(cmdName, TCL_NOSIZE);
		    }
		    Tcl_ListObjAppendElement(interp, listPtr, elemObjPtr);
		}
	    }
	    entryPtr = Tcl_NextHashEntry(&search);
	}

			cmdPtr = Tcl_GetHashValue(entryPtr);
			realCmdPtr = (Command *) TclGetOriginalCommand(
				(Tcl_Command) cmdPtr);

			if (TclIsProc(cmdPtr) || ((realCmdPtr != NULL)
				&& TclIsProc(realCmdPtr))) {
			    Tcl_ListObjAppendElement(interp, listPtr,
				    Tcl_NewStringObj(cmdName, TCL_NOSIZE));
			}
		    }
		}
		entryPtr = Tcl_NextHashEntry(&search);
	    }
	}
#endif

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

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

	     */

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

	    }
	    if (i > objc-4) {
		if (startPtr != NULL) {
		    Tcl_DecrRefCount(startPtr);
		}
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"\"-index\" option must be followed by list index",
			TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", NULL);
		return TCL_ERROR;
	    }

	    /*
	     * Store the extracted indices for processing by sublist
	     * extraction. Note that we don't do this using objects because

     */

    if (returnSubindices && sortInfo.indexc==0) {
	if (startPtr != NULL) {
	    Tcl_DecrRefCount(startPtr);
	}
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"-subindices cannot be used without -index option", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSEARCH",
		"BAD_OPTION_MIX", NULL);
	return TCL_ERROR;
    }

    if (bisect && (allMatches || negatedMatch)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"-bisect is not compatible with -all or -not", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSEARCH",
		"BAD_OPTION_MIX", NULL);
	return TCL_ERROR;
    }

    if (mode == REGEXP) {
	/*

	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", TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", NULL);
		sortInfo.resultCode = TCL_ERROR;
		goto done2;
	    }
	    sortInfo.sortMode = SORTMODE_COMMAND;
	    cmdPtr = objv[i+1];
	    i++;

	case LSORT_INDEX: {
	    int indexc, dummy;
	    Tcl_Obj **indexv;

	    if (i == objc-2) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"\"-index\" option must be followed by list index",
			TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", NULL);
		sortInfo.resultCode = TCL_ERROR;
		goto done2;
	    }
	    if (TclListObjGetElements(interp, objv[i+1], &indexc,
		    &indexv) != TCL_OK) {
		sortInfo.resultCode = TCL_ERROR;

	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", TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", NULL);
		sortInfo.resultCode = TCL_ERROR;
		goto done2;
	    }
	    if (Tcl_GetIntFromObj(interp, objv[i+1], &groupSize) != TCL_OK) {
		sortInfo.resultCode = TCL_ERROR;
		goto done2;
	    }
	    if (groupSize < 2) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"stride length must be at least 2", TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSORT",
			"BADSTRIDE", NULL);
		sortInfo.resultCode = TCL_ERROR;
		goto done2;
	    }
	    group = 1;
	    i++;

     * 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",
		    TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSORT", "BADSTRIDE",
		    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 = sortInfo.indexv[0];
	    if (groupOffset <= SORTIDX_END) {
		groupOffset = (groupOffset - SORTIDX_END) + 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", TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSORT",
			"BADINDEX", NULL);
		sortInfo.resultCode = TCL_ERROR;
		goto done;
	    }
	    if (sortInfo.indexc == 1) {
		sortInfo.indexc = 0;

	/*
	 * 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", TCL_NOSIZE));
	    Tcl_SetErrorCode(infoPtr->interp, "TCL", "OPERATION", "LSORT",
		    "COMPARISONFAILED", NULL);
	    infoPtr->resultCode = TCL_ERROR;
	    return 0;
	}
    }
    if (!infoPtr->isIncreasing) {

    /*
     * 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", TCL_NOSIZE));
	goto optionError;
    }

    /*
     * Handle the odd about case separately.
     */

	if (length1 == 0) {
	    if (strict) {
		result = 0;
	    }
	    goto str_is_done;
	}
	end = string1 + length1;
	if (TclParseNumber(NULL, objPtr, NULL, NULL, TCL_NOSIZE,
		(const char **) &stop, 0) != TCL_OK) {
	    result = 0;
	    failat = 0;
	} else {
	    failat = stop - string1;
	    if (stop < end) {
		result = 0;

	if (length1 == 0) {
	    if (strict) {
		result = 0;
	    }
	    goto str_is_done;
	}
	end = string1 + length1;
	if (TclParseNumber(NULL, objPtr, NULL, NULL, TCL_NOSIZE,
		(const char **) &stop, TCL_PARSE_INTEGER_ONLY) == TCL_OK) {
	    if (stop == end) {
		/*
		 * Entire string parses as an integer.
		 */

		break;

	     * Don't bother computing the failure point if we're not going to
	     * return it.
	     */

	    break;
	}
	end = string1 + length1;
	if (TclParseNumber(NULL, objPtr, NULL, NULL, TCL_NOSIZE,
		(const char **) &stop, TCL_PARSE_INTEGER_ONLY) == TCL_OK) {
	    if (stop == end) {
		/*
		 * Entire string parses as an integer, but rejected by
		 * Tcl_Get(Wide)IntFromObj() so we must have overflowed the
		 * target type, and our convention is to return failure at
		 * index -1 in that situation.

	    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", TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "MAP",
		    "UNBALANCED", NULL);
	    return TCL_ERROR;
	}
    }

    /*

	end = Tcl_UtfAtIndex(start, last - first + 1);
	resultPtr = Tcl_NewStringObj(string1, end - string1);
	string2 = TclGetString(resultPtr) + (start - string1);

	length2 = Tcl_UtfToLower(string2);
	Tcl_SetObjLength(resultPtr, length2 + (start - string1));

	Tcl_AppendToObj(resultPtr, end, TCL_NOSIZE);
	Tcl_SetObjResult(interp, resultPtr);
    }

    return TCL_OK;
}

/*

	end = Tcl_UtfAtIndex(start, last - first + 1);
	resultPtr = Tcl_NewStringObj(string1, end - string1);
	string2 = TclGetString(resultPtr) + (start - string1);

	length2 = Tcl_UtfToUpper(string2);
	Tcl_SetObjLength(resultPtr, length2 + (start - string1));

	Tcl_AppendToObj(resultPtr, end, TCL_NOSIZE);
	Tcl_SetObjResult(interp, resultPtr);
    }

    return TCL_OK;
}

/*

	end = Tcl_UtfAtIndex(start, last - first + 1);
	resultPtr = Tcl_NewStringObj(string1, end - string1);
	string2 = TclGetString(resultPtr) + (start - string1);

	length2 = Tcl_UtfToTitle(string2);
	Tcl_SetObjLength(resultPtr, length2 + (start - string1));

	Tcl_AppendToObj(resultPtr, end, TCL_NOSIZE);
	Tcl_SetObjResult(interp, resultPtr);
    }

    return TCL_OK;
}

/*

     * 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", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH", "BADARM",
		NULL);

	/*
	 * Check if this can be due to a badly placed comment in the switch
	 * block.
	 *
	 * The following is an heuristic to detect the infamous "comment in
	 * switch" error: just check if a pattern begins with '#'.
	 */

	if (splitObjs) {
	    for (i=0 ; i<objc ; i+=2) {
		if (TclGetString(objv[i])[0] == '#') {
		    Tcl_AppendToObj(Tcl_GetObjResult(interp),
			    ", this may be due to a comment incorrectly"
			    " placed outside of a switch body - see the"
			    " \"switch\" documentation", TCL_NOSIZE);
		    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH",
			    "BADARM", "COMMENT?", NULL);
		    break;
		}
	    }
	}

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

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

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

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

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

    unsigned int pcOffset)
{
    DictUpdateInfo *duiPtr = clientData;
    int i;

    for (i=0 ; i<duiPtr->length ; i++) {
	if (i) {
	    Tcl_AppendToObj(appendObj, ", ", TCL_NOSIZE);
	}
	Tcl_AppendPrintfToObj(appendObj, "%%v%u", duiPtr->varIndices[i]);
    }
}

/*
 *----------------------------------------------------------------------

    ByteCode *codePtr,
    unsigned int pcOffset)
{
    register ForeachInfo *infoPtr = clientData;
    register ForeachVarList *varsPtr;
    int i, j;

    Tcl_AppendToObj(appendObj, "data=[", TCL_NOSIZE);

    for (i=0 ; i<infoPtr->numLists ; i++) {
	if (i) {
	    Tcl_AppendToObj(appendObj, ", ", TCL_NOSIZE);
	}
	Tcl_AppendPrintfToObj(appendObj, "%%v%u",
		(unsigned) (infoPtr->firstValueTemp + i));
    }
    Tcl_AppendPrintfToObj(appendObj, "], loop=%%v%u",
	    (unsigned) infoPtr->loopCtTemp);
    for (i=0 ; i<infoPtr->numLists ; i++) {
	if (i) {
	    Tcl_AppendToObj(appendObj, ",", TCL_NOSIZE);
	}
	Tcl_AppendPrintfToObj(appendObj, "\n\t\t it%%v%u\t[",
		(unsigned) (infoPtr->firstValueTemp + i));
	varsPtr = infoPtr->varLists[i];
	for (j=0 ; j<varsPtr->numVars ; j++) {
	    if (j) {
		Tcl_AppendToObj(appendObj, ", ", TCL_NOSIZE);
	    }
	    Tcl_AppendPrintfToObj(appendObj, "%%v%u",
		    (unsigned) varsPtr->varIndexes[j]);
	}
	Tcl_AppendToObj(appendObj, "]", TCL_NOSIZE);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TclCompileFormatCmd --

    hPtr = Tcl_FirstHashEntry(&jtPtr->hashTable, &search);
    for (; hPtr ; hPtr = Tcl_NextHashEntry(&search)) {
	keyPtr = Tcl_GetHashKey(&jtPtr->hashTable, hPtr);
	offset = PTR2INT(Tcl_GetHashValue(hPtr));

	if (i++) {
	    Tcl_AppendToObj(appendObj, ", ", TCL_NOSIZE);
	    if (i%4==0) {
		Tcl_AppendToObj(appendObj, "\n\t\t", TCL_NOSIZE);
	    }
	}
	Tcl_AppendPrintfToObj(appendObj, "\"%s\"->pc %d",
		keyPtr, pcOffset + offset);
    }
}


    int words;

    for (words=1 ; words<parsePtr->numWords ; words++) {
	tokenPtr = TokenAfter(tokenPtr);
	CompileWord(envPtr, tokenPtr, interp, words);
    }
    if (parsePtr->numWords <= 2) {
	PushLiteral(envPtr, identity, TCL_NOSIZE);
	words++;
    }
    if (words > 3) {
	/*
	 * Reverse order of arguments to get precise agreement with [expr] in
	 * calcuations, including roundoff errors.
	 */

			TclParseNumber(NULL, NULL, NULL, start, scanned,
				&stop, TCL_PARSE_NO_WHITESPACE);

			if (isdigit(UCHAR(*stop)) || (stop == start + 1)) {
			    switch (start[1]) {
			    case 'b':
				Tcl_AppendToObj(post,
					" (invalid binary number?)", TCL_NOSIZE);
				parsePtr->errorType = TCL_PARSE_BAD_NUMBER;
				errCode = "BADNUMBER";
				subErrCode = "BINARY";
				break;
			    case 'o':
				Tcl_AppendToObj(post,
					" (invalid octal number?)", TCL_NOSIZE);
				parsePtr->errorType = TCL_PARSE_BAD_NUMBER;
				errCode = "BADNUMBER";
				subErrCode = "OCTAL";
				break;
			    default:
				if (isdigit(UCHAR(start[1]))) {
				    Tcl_AppendToObj(post,
					    " (invalid octal number?)", TCL_NOSIZE);
				    parsePtr->errorType = TCL_PARSE_BAD_NUMBER;
				    errCode = "BADNUMBER";
				    subErrCode = "OCTAL";
				}
				break;
			    }
			}

		(start + scanned + limit > parsePtr->end) ? "" : "...");

	/*
	 * Next, append any postscript message.
	 */

	if (post != NULL) {
	    Tcl_AppendToObj(msg, ";\n", TCL_NOSIZE);
	    Tcl_AppendObjToObj(msg, post);
	    Tcl_DecrRefCount(post);
	}
	Tcl_SetObjResult(interp, msg);

	/*
	 * Finally, place context information in the errorInfo.

    sprintf(ptrBuf1, "%p", codePtr);
    sprintf(ptrBuf2, "%p", iPtr);
    Tcl_AppendPrintfToObj(bufferObj,
	    "ByteCode 0x%s, refCt %u, epoch %u, interp 0x%s (epoch %u)\n",
	    ptrBuf1, codePtr->refCount, codePtr->compileEpoch, ptrBuf2,
	    iPtr->compileEpoch);
    Tcl_AppendToObj(bufferObj, "  Source ", TCL_NOSIZE);
    PrintSourceToObj(bufferObj, codePtr->source,
	    TclMin(codePtr->numSrcBytes, 55));
    Tcl_AppendPrintfToObj(bufferObj,
	    "\n  Cmds %d, src %d, inst %d, litObjs %u, aux %d, stkDepth %u, code/src %.2f\n",
	    numCmds, codePtr->numSrcBytes, codePtr->numCodeBytes,
	    codePtr->numLitObjects, codePtr->numAuxDataItems,
	    codePtr->maxStackDepth,

			(localPtr->flags & (VAR_ARRAY|VAR_LINK)) ? "" : ", scalar",
			(localPtr->flags & VAR_ARRAY) ? ", array" : "",
			(localPtr->flags & VAR_LINK) ? ", link" : "",
			(localPtr->flags & VAR_ARGUMENT) ? ", arg" : "",
			(localPtr->flags & VAR_TEMPORARY) ? ", temp" : "",
			(localPtr->flags & VAR_RESOLVED) ? ", resolved" : "");
		if (TclIsVarTemporary(localPtr)) {
		    Tcl_AppendToObj(bufferObj, "\n", TCL_NOSIZE);
		} else {
		    Tcl_AppendPrintfToObj(bufferObj, ", \"%s\"\n",
			    localPtr->name);
		}
		localPtr = localPtr->nextPtr;
	    }
	}

     * If there were no commands (e.g., an expression or an empty string was
     * compiled), just print all instructions and return.
     */

    if (numCmds == 0) {
	pc = codeStart;
	while (pc < codeLimit) {
	    Tcl_AppendToObj(bufferObj, "    ", TCL_NOSIZE);
	    pc += FormatInstruction(codePtr, pc, bufferObj);
	}
	return bufferObj;
    }

    /*
     * Print table showing the code offset, source offset, and source length

	Tcl_AppendPrintfToObj(bufferObj, "%s%4d: pc %d-%d, src %d-%d",
		((i % 2)? "     " : "\n   "),
		(i+1), codeOffset, (codeOffset + codeLen - 1),
		srcOffset, (srcOffset + srcLen - 1));
    }
    if (numCmds > 0) {
	Tcl_AppendToObj(bufferObj, "\n", TCL_NOSIZE);
    }

    /*
     * Print each instruction. If the instruction corresponds to the start of
     * a command, print the command's source. Note that we don't need the code
     * length here.
     */

	}

	/*
	 * Print instructions before command i.
	 */

	while ((pc-codeStart) < codeOffset) {
	    Tcl_AppendToObj(bufferObj, "    ", TCL_NOSIZE);
	    pc += FormatInstruction(codePtr, pc, bufferObj);
	}

	Tcl_AppendPrintfToObj(bufferObj, "  Command %d: ", i+1);
	PrintSourceToObj(bufferObj, (codePtr->source + srcOffset),
		TclMin(srcLen, 55));
	Tcl_AppendToObj(bufferObj, "\n", TCL_NOSIZE);
    }
    if (pc < codeLimit) {
	/*
	 * Print instructions after the last command.
	 */

	while (pc < codeLimit) {
	    Tcl_AppendToObj(bufferObj, "    ", TCL_NOSIZE);
	    pc += FormatInstruction(codePtr, pc, bufferObj);
	}
    }
    return bufferObj;
}

/*

	    break;
	}
    }
    if (suffixObj) {
	const char *bytes;
	int length;

	Tcl_AppendToObj(bufferObj, "\t# ", TCL_NOSIZE);
	bytes = Tcl_GetStringFromObj(codePtr->objArrayPtr[opnd], &length);
	PrintSourceToObj(bufferObj, bytes, TclMin(length, 40));
    } else if (suffixBuffer[0]) {
	Tcl_AppendPrintfToObj(bufferObj, "\t# %s", suffixBuffer);
	if (suffixSrc) {
	    PrintSourceToObj(bufferObj, suffixSrc, 40);
	}
    }
    Tcl_AppendToObj(bufferObj, "\n", TCL_NOSIZE);
    if (auxPtr && auxPtr->type->printProc) {
	Tcl_AppendToObj(bufferObj, "\t\t[", TCL_NOSIZE);
	auxPtr->type->printProc(auxPtr->clientData, bufferObj, codePtr,
		pcOffset);
	Tcl_AppendToObj(bufferObj, "]\n", TCL_NOSIZE);
    }
    return numBytes;
}

/*
 *----------------------------------------------------------------------
 *

    const char *stringPtr,	/* The string to print. */
    int maxChars)		/* Maximum number of chars to print. */
{
    register const char *p;
    register int i = 0;

    if (stringPtr == NULL) {
	Tcl_AppendToObj(appendObj, "\"\"", TCL_NOSIZE);
	return;
    }

    Tcl_AppendToObj(appendObj, "\"", TCL_NOSIZE);
    p = stringPtr;
    for (;  (*p != '\0') && (i < maxChars);  p++, i++) {
	switch (*p) {
	case '"':
	    Tcl_AppendToObj(appendObj, "\\\"", TCL_NOSIZE);
	    continue;
	case '\f':
	    Tcl_AppendToObj(appendObj, "\\f", TCL_NOSIZE);
	    continue;
	case '\n':
	    Tcl_AppendToObj(appendObj, "\\n", TCL_NOSIZE);
	    continue;
	case '\r':
	    Tcl_AppendToObj(appendObj, "\\r", TCL_NOSIZE);
	    continue;
	case '\t':
	    Tcl_AppendToObj(appendObj, "\\t", TCL_NOSIZE);
	    continue;
	case '\v':
	    Tcl_AppendToObj(appendObj, "\\v", TCL_NOSIZE);
	    continue;
	default:
	    Tcl_AppendPrintfToObj(appendObj, "%c", *p);
	    continue;
	}
    }
    Tcl_AppendToObj(appendObj, "\"", TCL_NOSIZE);
}

#ifdef TCL_COMPILE_STATS
/*
 *----------------------------------------------------------------------
 *
 * RecordByteCodeStats --

{
    Tcl_DString cmdName;
    const Tcl_Config *cfg;
    Tcl_Encoding venc = Tcl_GetEncoding(NULL, valEncoding);
    QCCD *cdPtr = ckalloc(sizeof(QCCD));

    cdPtr->interp = interp;
    cdPtr->pkg = Tcl_NewStringObj(pkgName, TCL_NOSIZE);

    /*
     * Phase I: Adding the provided information to the internal database of
     * package meta data. Only if we have an ok encoding.
     *
     * Phase II: Create a command for querying this database, specific to the
     * package registerting its configuration. This is the approved interface

	/*
	 * Extend the package configuration...
	 */

	for (cfg=configuration ; cfg->key!=NULL && cfg->key[0]!='\0' ; cfg++) {
	    Tcl_DString conv;
	    const char *convValue =
		    Tcl_ExternalToUtfDString(venc, cfg->value, TCL_NOSIZE, &conv);

	    /*
	     * We know that the keys are in ASCII/UTF-8, so for them is no
	     * conversion required.
	     */

	    Tcl_DictObjPut(interp, pkgDict, Tcl_NewStringObj(cfg->key, TCL_NOSIZE),
		    Tcl_NewStringObj(convValue, TCL_NOSIZE));
	    Tcl_DStringFree(&conv);
	}

	/*
	 * We're now done with the encoding, so drop it.
	 */

    /*
     * Now create the interface command for retrieval of the package
     * information.
     */

    Tcl_DStringInit(&cmdName);
    TclDStringAppendLiteral(&cmdName, "::");
    Tcl_DStringAppend(&cmdName, pkgName, TCL_NOSIZE);

    /*
     * The incomplete command name is the name of the namespace to place it
     * in.
     */

    if (Tcl_FindNamespace(interp, Tcl_DStringValue(&cmdName), NULL,

    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", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "FATAL", "PKGCFG_BASE",
		Tcl_GetString(pkgName), NULL);
	return TCL_ERROR;
    }

    switch ((enum subcmds) 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", TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "CONFIG",
		    Tcl_GetString(objv[2]), NULL);
	    return TCL_ERROR;
	}

	Tcl_SetObjResult(interp, val);
	return TCL_OK;

    case CFG_LIST:
	if (objc != 2) {
	    Tcl_WrongNumArgs(interp, 2, objv, NULL);
	    return TCL_ERROR;
	}

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

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

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

static void
TclDateerror(
    YYLTYPE* location,
    DateInfo* infoPtr,
    const char *s)
{
    Tcl_Obj* t;
    Tcl_AppendToObj(infoPtr->messages, infoPtr->separatrix, TCL_NOSIZE);
    Tcl_AppendToObj(infoPtr->messages, s, TCL_NOSIZE);
    Tcl_AppendToObj(infoPtr->messages, " (characters ", TCL_NOSIZE);
    t = Tcl_NewIntObj(location->first_column);
    Tcl_IncrRefCount(t);
    Tcl_AppendObjToObj(infoPtr->messages, t);
    Tcl_DecrRefCount(t);
    Tcl_AppendToObj(infoPtr->messages, "-", TCL_NOSIZE);
    t = Tcl_NewIntObj(location->last_column);
    Tcl_IncrRefCount(t);
    Tcl_AppendObjToObj(infoPtr->messages, t);
    Tcl_DecrRefCount(t);
    Tcl_AppendToObj(infoPtr->messages, ")", TCL_NOSIZE);
    infoPtr->separatrix = "\n";
}

static time_t
ToSeconds(
    time_t Hours,
    time_t Minutes,

    status = yyparse(&dateInfo);
    if (status == 1) {
	Tcl_SetObjResult(interp, dateInfo.messages);
	Tcl_DecrRefCount(dateInfo.messages);
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DATE", "PARSE", NULL);
	return TCL_ERROR;
    } else if (status == 2) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("memory exhausted", TCL_NOSIZE));
	Tcl_DecrRefCount(dateInfo.messages);
	Tcl_SetErrorCode(interp, "TCL", "MEMORY", NULL);
	return TCL_ERROR;
    } else if (status != 0) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("Unknown status returned "
						  "from date parser. Please "
						  "report this error as a "
						  "bug in Tcl.", TCL_NOSIZE));
	Tcl_DecrRefCount(dateInfo.messages);
	Tcl_SetErrorCode(interp, "TCL", "BUG", NULL);
	return TCL_ERROR;
    }
    Tcl_DecrRefCount(dateInfo.messages);

    if (yyHaveDate > 1) {
	Tcl_SetObjResult(interp,
		Tcl_NewStringObj("more than one date in string", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DATE", "MULTIPLE", NULL);
	return TCL_ERROR;
    }
    if (yyHaveTime > 1) {
	Tcl_SetObjResult(interp,
		Tcl_NewStringObj("more than one time of day in string", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DATE", "MULTIPLE", NULL);
	return TCL_ERROR;
    }
    if (yyHaveZone > 1) {
	Tcl_SetObjResult(interp,
		Tcl_NewStringObj("more than one time zone in string", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DATE", "MULTIPLE", NULL);
	return TCL_ERROR;
    }
    if (yyHaveDay > 1) {
	Tcl_SetObjResult(interp,
		Tcl_NewStringObj("more than one weekday in string", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DATE", "MULTIPLE", NULL);
	return TCL_ERROR;
    }
    if (yyHaveOrdinalMonth > 1) {
	Tcl_SetObjResult(interp,
		Tcl_NewStringObj("more than one ordinal month in string", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DATE", "MULTIPLE", NULL);
	return TCL_ERROR;
    }

    result = Tcl_NewObj();
    resultElement = Tcl_NewObj();
    if (yyHaveDate) {

/* 217 */
EXTERN void		Tcl_ResetResult(Tcl_Interp *interp);
/* 218 */
EXTERN int		Tcl_ScanElement(const char *src, int *flagPtr);
/* 219 */
EXTERN int		Tcl_ScanCountedElement(const char *src, int length,
				int *flagPtr);
/* 220 */
EXTERN TCL_SIZE_T	Tcl_Seek(Tcl_Channel chan, TCL_SIZE_T offset,
				int mode);
/* 221 */
EXTERN int		Tcl_ServiceAll(void);
/* 222 */
EXTERN int		Tcl_ServiceEvent(int flags);
/* 223 */
EXTERN void		Tcl_SetAssocData(Tcl_Interp *interp,
				const char *name, Tcl_InterpDeleteProc *proc,

/* 244 */
EXTERN void		Tcl_StaticPackage(Tcl_Interp *interp,
				const char *pkgName,
				Tcl_PackageInitProc *initProc,
				Tcl_PackageInitProc *safeInitProc);
/* 245 */
EXTERN int		Tcl_StringMatch(const char *str, const char *pattern);
/* 246 */
EXTERN TCL_SIZE_T	Tcl_Tell(Tcl_Channel chan);
/* 247 */
EXTERN int		Tcl_TraceVar(Tcl_Interp *interp, const char *varName,
				int flags, Tcl_VarTraceProc *proc,
				ClientData clientData);
/* 248 */
EXTERN int		Tcl_TraceVar2(Tcl_Interp *interp, const char *part1,
				const char *part2, int flags,

EXTERN Tcl_Obj *	Tcl_NewWideIntObj(Tcl_WideInt wideValue);
/* 489 */
EXTERN void		Tcl_SetWideIntObj(Tcl_Obj *objPtr,
				Tcl_WideInt wideValue);
/* 490 */
EXTERN Tcl_StatBuf *	Tcl_AllocStatBuf(void);
/* 491 */
EXTERN Tcl_WideInt	Tcl_SeekOld(Tcl_Channel chan, Tcl_WideInt offset,
				int mode);
/* 492 */
EXTERN Tcl_WideInt	Tcl_TellOld(Tcl_Channel chan);
/* 493 */
EXTERN Tcl_DriverWideSeekProc * Tcl_ChannelWideSeekProc(
				const Tcl_ChannelType *chanTypePtr);
/* 494 */
EXTERN int		Tcl_DictObjPut(Tcl_Interp *interp, Tcl_Obj *dictPtr,
				Tcl_Obj *keyPtr, Tcl_Obj *valuePtr);
/* 495 */

    int (*tcl_RegExpExec) (Tcl_Interp *interp, Tcl_RegExp regexp, const char *text, const char *start); /* 213 */
    int (*tcl_RegExpMatch) (Tcl_Interp *interp, const char *text, const char *pattern); /* 214 */
    void (*tcl_RegExpRange) (Tcl_RegExp regexp, int index, const char **startPtr, const char **endPtr); /* 215 */
    void (*tcl_Release) (ClientData clientData); /* 216 */
    void (*tcl_ResetResult) (Tcl_Interp *interp); /* 217 */
    int (*tcl_ScanElement) (const char *src, int *flagPtr); /* 218 */
    int (*tcl_ScanCountedElement) (const char *src, int length, int *flagPtr); /* 219 */
    TCL_SIZE_T (*tcl_Seek) (Tcl_Channel chan, TCL_SIZE_T offset, int mode); /* 220 */
    int (*tcl_ServiceAll) (void); /* 221 */
    int (*tcl_ServiceEvent) (int flags); /* 222 */
    void (*tcl_SetAssocData) (Tcl_Interp *interp, const char *name, Tcl_InterpDeleteProc *proc, ClientData clientData); /* 223 */
    void (*tcl_SetChannelBufferSize) (Tcl_Channel chan, int sz); /* 224 */
    int (*tcl_SetChannelOption) (Tcl_Interp *interp, Tcl_Channel chan, const char *optionName, const char *newValue); /* 225 */
    int (*tcl_SetCommandInfo) (Tcl_Interp *interp, const char *cmdName, const Tcl_CmdInfo *infoPtr); /* 226 */
    void (*tcl_SetErrno) (int err); /* 227 */

    const char * (*tcl_SignalId) (int sig); /* 239 */
    const char * (*tcl_SignalMsg) (int sig); /* 240 */
    void (*tcl_SourceRCFile) (Tcl_Interp *interp); /* 241 */
    int (*tcl_SplitList) (Tcl_Interp *interp, const char *listStr, int *argcPtr, const char ***argvPtr); /* 242 */
    void (*tcl_SplitPath) (const char *path, int *argcPtr, const char ***argvPtr); /* 243 */
    void (*tcl_StaticPackage) (Tcl_Interp *interp, const char *pkgName, Tcl_PackageInitProc *initProc, Tcl_PackageInitProc *safeInitProc); /* 244 */
    int (*tcl_StringMatch) (const char *str, const char *pattern); /* 245 */
    TCL_SIZE_T (*tcl_Tell) (Tcl_Channel chan); /* 246 */
    int (*tcl_TraceVar) (Tcl_Interp *interp, const char *varName, int flags, Tcl_VarTraceProc *proc, ClientData clientData); /* 247 */
    int (*tcl_TraceVar2) (Tcl_Interp *interp, const char *part1, const char *part2, int flags, Tcl_VarTraceProc *proc, ClientData clientData); /* 248 */
    char * (*tcl_TranslateFileName) (Tcl_Interp *interp, const char *name, Tcl_DString *bufferPtr); /* 249 */
    int (*tcl_Ungets) (Tcl_Channel chan, const char *str, int len, int atHead); /* 250 */
    void (*tcl_UnlinkVar) (Tcl_Interp *interp, const char *varName); /* 251 */
    int (*tcl_UnregisterChannel) (Tcl_Interp *interp, Tcl_Channel chan); /* 252 */
    int (*tcl_UnsetVar) (Tcl_Interp *interp, const char *varName, int flags); /* 253 */

    int (*tcl_GetCommandInfoFromToken) (Tcl_Command token, Tcl_CmdInfo *infoPtr); /* 484 */
    int (*tcl_SetCommandInfoFromToken) (Tcl_Command token, const Tcl_CmdInfo *infoPtr); /* 485 */
    Tcl_Obj * (*tcl_DbNewWideIntObj) (Tcl_WideInt wideValue, const char *file, int line); /* 486 */
    int (*tcl_GetWideIntFromObj) (Tcl_Interp *interp, Tcl_Obj *objPtr, Tcl_WideInt *widePtr); /* 487 */
    Tcl_Obj * (*tcl_NewWideIntObj) (Tcl_WideInt wideValue); /* 488 */
    void (*tcl_SetWideIntObj) (Tcl_Obj *objPtr, Tcl_WideInt wideValue); /* 489 */
    Tcl_StatBuf * (*tcl_AllocStatBuf) (void); /* 490 */
    Tcl_WideInt (*tcl_SeekOld) (Tcl_Channel chan, Tcl_WideInt offset, int mode); /* 491 */
    Tcl_WideInt (*tcl_TellOld) (Tcl_Channel chan); /* 492 */
    Tcl_DriverWideSeekProc * (*tcl_ChannelWideSeekProc) (const Tcl_ChannelType *chanTypePtr); /* 493 */
    int (*tcl_DictObjPut) (Tcl_Interp *interp, Tcl_Obj *dictPtr, Tcl_Obj *keyPtr, Tcl_Obj *valuePtr); /* 494 */
    int (*tcl_DictObjGet) (Tcl_Interp *interp, Tcl_Obj *dictPtr, Tcl_Obj *keyPtr, Tcl_Obj **valuePtrPtr); /* 495 */
    int (*tcl_DictObjRemove) (Tcl_Interp *interp, Tcl_Obj *dictPtr, Tcl_Obj *keyPtr); /* 496 */
    int (*tcl_DictObjSize) (Tcl_Interp *interp, Tcl_Obj *dictPtr, int *sizePtr); /* 497 */
    int (*tcl_DictObjFirst) (Tcl_Interp *interp, Tcl_Obj *dictPtr, Tcl_DictSearch *searchPtr, Tcl_Obj **keyPtrPtr, Tcl_Obj **valuePtrPtr, int *donePtr); /* 498 */
    void (*tcl_DictObjNext) (Tcl_DictSearch *searchPtr, Tcl_Obj **keyPtrPtr, Tcl_Obj **valuePtrPtr, int *donePtr); /* 499 */

	(tclStubsPtr->tcl_Release) /* 216 */
#define Tcl_ResetResult \
	(tclStubsPtr->tcl_ResetResult) /* 217 */
#define Tcl_ScanElement \
	(tclStubsPtr->tcl_ScanElement) /* 218 */
#define Tcl_ScanCountedElement \
	(tclStubsPtr->tcl_ScanCountedElement) /* 219 */
#define Tcl_Seek \
	(tclStubsPtr->tcl_Seek) /* 220 */
#define Tcl_ServiceAll \
	(tclStubsPtr->tcl_ServiceAll) /* 221 */
#define Tcl_ServiceEvent \
	(tclStubsPtr->tcl_ServiceEvent) /* 222 */
#define Tcl_SetAssocData \
	(tclStubsPtr->tcl_SetAssocData) /* 223 */
#define Tcl_SetChannelBufferSize \

	(tclStubsPtr->tcl_SplitList) /* 242 */
#define Tcl_SplitPath \
	(tclStubsPtr->tcl_SplitPath) /* 243 */
#define Tcl_StaticPackage \
	(tclStubsPtr->tcl_StaticPackage) /* 244 */
#define Tcl_StringMatch \
	(tclStubsPtr->tcl_StringMatch) /* 245 */
#define Tcl_Tell \
	(tclStubsPtr->tcl_Tell) /* 246 */
#define Tcl_TraceVar \
	(tclStubsPtr->tcl_TraceVar) /* 247 */
#define Tcl_TraceVar2 \
	(tclStubsPtr->tcl_TraceVar2) /* 248 */
#define Tcl_TranslateFileName \
	(tclStubsPtr->tcl_TranslateFileName) /* 249 */
#define Tcl_Ungets \

	(tclStubsPtr->tcl_GetWideIntFromObj) /* 487 */
#define Tcl_NewWideIntObj \
	(tclStubsPtr->tcl_NewWideIntObj) /* 488 */
#define Tcl_SetWideIntObj \
	(tclStubsPtr->tcl_SetWideIntObj) /* 489 */
#define Tcl_AllocStatBuf \
	(tclStubsPtr->tcl_AllocStatBuf) /* 490 */
#define Tcl_SeekOld \
	(tclStubsPtr->tcl_SeekOld) /* 491 */
#define Tcl_TellOld \
	(tclStubsPtr->tcl_TellOld) /* 492 */
#define Tcl_ChannelWideSeekProc \
	(tclStubsPtr->tcl_ChannelWideSeekProc) /* 493 */
#define Tcl_DictObjPut \
	(tclStubsPtr->tcl_DictObjPut) /* 494 */
#define Tcl_DictObjGet \
	(tclStubsPtr->tcl_DictObjGet) /* 495 */
#define Tcl_DictObjRemove \

    objPtr->internalRep.otherValuePtr = dict;
    objPtr->typePtr = &tclDictType;
    return TCL_OK;

  missingValue:
    if (interp != NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"missing value to go with key", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DICTIONARY", NULL);
    }
    result = TCL_ERROR;

  errorExit:
    if (interp != NULL) {
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DICTIONARY", NULL);

	if (result != TCL_OK) {
	    return result;
	}
    }
    dict = dictPtr->internalRep.otherValuePtr;

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

     */

    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", TCL_NOSIZE));
	return TCL_ERROR;
    }
    searchPtr = TclStackAlloc(interp, sizeof(Tcl_DictSearch));
    if (Tcl_DictObjFirst(interp, objv[2], searchPtr, &keyObj, &valueObj,
	    &done) != TCL_OK) {
	TclStackFree(interp, searchPtr);
	return TCL_ERROR;

     */

    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", TCL_NOSIZE));
	return TCL_ERROR;
    }
    storagePtr = TclStackAlloc(interp, sizeof(DictMapStorage));
    if (Tcl_DictObjFirst(interp, objv[2], &storagePtr->search, &keyObj,
	    &valueObj, &done) != TCL_OK) {
	TclStackFree(interp, storagePtr);
	return TCL_ERROR;

	 */

	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", TCL_NOSIZE));
	    return TCL_ERROR;
	}
	keyVarObj = varv[0];
	valueVarObj = varv[1];
	scriptObj = objv[4];

	/*

 */

void
Tcl_SetDefaultEncodingDir(
    const char *path)
{
    Tcl_Obj *searchPath = Tcl_GetEncodingSearchPath();
    Tcl_Obj *directory = Tcl_NewStringObj(path, TCL_NOSIZE);

    searchPath = Tcl_DuplicateObj(searchPath);
    Tcl_ListObjReplace(NULL, searchPath, 0, 0, 1, &directory);
    Tcl_SetEncodingSearchPath(searchPath);
}

/*

    Tcl_MutexLock(&encodingMutex);
    for (hPtr = Tcl_FirstHashEntry(&encodingTable, &search); hPtr != NULL;
	    hPtr = Tcl_NextHashEntry(&search)) {
	Encoding *encodingPtr = Tcl_GetHashValue(hPtr);

	Tcl_CreateHashEntry(&table,
		Tcl_NewStringObj(encodingPtr->name, TCL_NOSIZE), &dummy);
    }
    Tcl_MutexUnlock(&encodingMutex);

    FillEncodingFileMap();
    map = TclGetProcessGlobalValue(&encodingFileMap);

    /*

static Tcl_Channel
OpenEncodingFileChannel(
    Tcl_Interp *interp,		/* Interp for error reporting, if not NULL. */
    const char *name)		/* The name of the encoding file on disk and
				 * also the name for new encoding. */
{
    Tcl_Obj *nameObj = Tcl_NewStringObj(name, TCL_NOSIZE);
    Tcl_Obj *fileNameObj = Tcl_DuplicateObj(nameObj);
    Tcl_Obj *searchPath = Tcl_DuplicateObj(Tcl_GetEncodingSearchPath());
    Tcl_Obj *map = TclGetProcessGlobalValue(&encodingFileMap);
    Tcl_Obj **dir, *path, *directory = NULL;
    Tcl_Channel chan = NULL;
    int i, numDirs;

    Tcl_ListObjGetElements(NULL, searchPath, &numDirs, &dir);
    Tcl_IncrRefCount(nameObj);
    Tcl_AppendToObj(fileNameObj, ".enc", TCL_NOSIZE);
    Tcl_IncrRefCount(fileNameObj);
    Tcl_DictObjGet(NULL, map, nameObj, &directory);

    /*
     * Check that any cached directory is still on the encoding search path.
     */

    Tcl_Namespace *namespacePtr)
{
    register Namespace *nsPtr = (Namespace *) namespacePtr;

    if (namespacePtr == TclGetGlobalNamespace(nsPtr->interp)) {
	return Tcl_NewStringObj("::", 2);
    } else {
	return Tcl_NewStringObj(nsPtr->fullName, TCL_NOSIZE);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TclNamespaceEnsembleCmd --

    Tcl_Obj *listObj;
    int index, done;

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

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

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

	    Tcl_Obj *resultObj, *tmpObj = NULL;	/* silence gcc 4 warning */
	    int flags = 0;			/* silence gcc 4 warning */

	    TclNewObj(resultObj);

	    /* -map option */
	    Tcl_ListObjAppendElement(NULL, resultObj,
		    Tcl_NewStringObj(ensembleConfigOptions[CONF_MAP], TCL_NOSIZE));
	    Tcl_GetEnsembleMappingDict(NULL, token, &tmpObj);
	    Tcl_ListObjAppendElement(NULL, resultObj,
		    (tmpObj != NULL) ? tmpObj : Tcl_NewObj());

	    /* -namespace option */
	    Tcl_ListObjAppendElement(NULL, resultObj,
		    Tcl_NewStringObj(ensembleConfigOptions[CONF_NAMESPACE],
			    TCL_NOSIZE));
	    namespacePtr = NULL;		/* silence gcc 4 warning */
	    Tcl_GetEnsembleNamespace(NULL, token, &namespacePtr);
	    Tcl_ListObjAppendElement(NULL, resultObj, NewNsObj(namespacePtr));

	    /* -parameters option */
	    Tcl_ListObjAppendElement(NULL, resultObj,
		    Tcl_NewStringObj(ensembleConfigOptions[CONF_PARAM], TCL_NOSIZE));
	    Tcl_GetEnsembleParameterList(NULL, token, &tmpObj);
	    Tcl_ListObjAppendElement(NULL, resultObj,
		    (tmpObj != NULL) ? tmpObj : Tcl_NewObj());

	    /* -prefix option */
	    Tcl_ListObjAppendElement(NULL, resultObj,
		    Tcl_NewStringObj(ensembleConfigOptions[CONF_PREFIX], TCL_NOSIZE));
	    Tcl_GetEnsembleFlags(NULL, token, &flags);
	    Tcl_ListObjAppendElement(NULL, resultObj,
		    Tcl_NewBooleanObj(flags & TCL_ENSEMBLE_PREFIX));

	    /* -subcommands option */
	    Tcl_ListObjAppendElement(NULL, resultObj,
		    Tcl_NewStringObj(ensembleConfigOptions[CONF_SUBCMDS], TCL_NOSIZE));
	    Tcl_GetEnsembleSubcommandList(NULL, token, &tmpObj);
	    Tcl_ListObjAppendElement(NULL, resultObj,
		    (tmpObj != NULL) ? tmpObj : Tcl_NewObj());

	    /* -unknown option */
	    Tcl_ListObjAppendElement(NULL, resultObj,
		    Tcl_NewStringObj(ensembleConfigOptions[CONF_UNKNOWN], TCL_NOSIZE));
	    Tcl_GetEnsembleUnknownHandler(NULL, token, &tmpObj);
	    Tcl_ListObjAppendElement(NULL, resultObj,
		    (tmpObj != NULL) ? tmpObj : Tcl_NewObj());

	    Tcl_SetObjResult(interp, resultObj);
	} else {
	    int len, allocatedMapFlag = 0;

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

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

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

    if (cmdPtr->objProc != NsEnsembleImplementationCmd) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"command is not an ensemble", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", NULL);
	return TCL_ERROR;
    }
    if (subcmdList != NULL) {
	int length;

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

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

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

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

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

		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",
			TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE",
			"UNQUALIFIED_TARGET", NULL);
		Tcl_DictObjDone(&search);
		return TCL_ERROR;
	    }
	}

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

    if (cmdPtr->objProc != NsEnsembleImplementationCmd) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"command is not an ensemble", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "NOT_ENSEMBLE", NULL);
	return TCL_ERROR;
    }
    if (unknownList != NULL) {
	int length;

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

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

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

    ensemblePtr = cmdPtr->objClientData;
    wasCompiled = ensemblePtr->flags & ENSEMBLE_COMPILE;

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

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

    ensemblePtr = cmdPtr->objClientData;
    *subcmdListPtr = ensemblePtr->subcmdList;

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

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

    ensemblePtr = cmdPtr->objClientData;
    *paramListPtr = ensemblePtr->parameterList;

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

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

    ensemblePtr = cmdPtr->objClientData;
    *mapDictPtr = ensemblePtr->subcommandDict;

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

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

    ensemblePtr = cmdPtr->objClientData;
    *unknownListPtr = ensemblePtr->unknownHandler;

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

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

    ensemblePtr = cmdPtr->objClientData;
    *flagsPtr = ensemblePtr->flags;

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

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

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

    /*
     * Construct the path for the ensemble namespace and create it.
     */

    Tcl_DStringInit(&buf);
    Tcl_DStringInit(&hiddenBuf);
    TclDStringAppendLiteral(&hiddenBuf, "tcl:");
    Tcl_DStringAppend(&hiddenBuf, name, TCL_NOSIZE);
    TclDStringAppendLiteral(&hiddenBuf, ":");
    hiddenLen = Tcl_DStringLength(&hiddenBuf);
    if (name[0] == ':' && name[1] == ':') {
	/*
	 * An absolute name, so use it directly.
	 */

	cmdName = name;
	Tcl_DStringAppend(&buf, name, TCL_NOSIZE);
	ensembleFlags = TCL_ENSEMBLE_PREFIX;
    } else {
	/*
	 * Not an absolute name, so do munging of it. Note that this treats a
	 * multi-word list differently to a single word.
	 */

	TclDStringAppendLiteral(&buf, "::tcl");

	if (Tcl_SplitList(NULL, name, &nameCount, &nameParts) != TCL_OK) {
	    Tcl_Panic("invalid ensemble name '%s'", name);
	}

	for (i = 0; i < nameCount; ++i) {
	    TclDStringAppendLiteral(&buf, "::");
	    Tcl_DStringAppend(&buf, nameParts[i], TCL_NOSIZE);
	}
    }

    ns = Tcl_FindNamespace(interp, Tcl_DStringValue(&buf), NULL,
	    TCL_CREATE_NS_IF_UNKNOWN);
    if (!ns) {
	Tcl_Panic("unable to find or create %s namespace!",

    if (ensemble != NULL) {
	Tcl_Obj *mapDict, *fromObj, *toObj;
	Command *cmdPtr;

	TclDStringAppendLiteral(&buf, "::");
	TclNewObj(mapDict);
	for (i=0 ; map[i].name != NULL ; i++) {
	    fromObj = Tcl_NewStringObj(map[i].name, TCL_NOSIZE);
	    TclNewStringObj(toObj, Tcl_DStringValue(&buf),
		    Tcl_DStringLength(&buf));
	    Tcl_AppendToObj(toObj, map[i].name, TCL_NOSIZE);
	    Tcl_DictObjPut(NULL, mapDict, fromObj, toObj);

	    if (map[i].proc || map[i].nreProc) {
		/*
		 * If the command is unsafe, hide it when we're in a safe
		 * interpreter. The code to do this is really hokey! It also
		 * doesn't work properly yet; this function is always
		 * currently called before the safe-interp flag is set so the
		 * Tcl_IsSafe check fails.
		 */

		if (map[i].unsafe && Tcl_IsSafe(interp)) {
		    cmdPtr = (Command *)
			    Tcl_NRCreateCommand(interp, "___tmp", map[i].proc,
			    map[i].nreProc, map[i].clientData, NULL);
		    Tcl_DStringSetLength(&hiddenBuf, hiddenLen);
		    if (Tcl_HideCommand(interp, "___tmp",
			    Tcl_DStringAppend(&hiddenBuf, map[i].name, TCL_NOSIZE))) {
			Tcl_Panic("%s", Tcl_GetString(Tcl_GetObjResult(interp)));
		    }
		} else {
		    /*
		     * Not hidden, so just create it. Yay!
		     */

    if (ensemblePtr->nsPtr->flags & NS_DYING) {
	/*
	 * 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", TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "DEAD", NULL);
	}
	return TCL_ERROR;
    }

    /*
     * Determine if the table of subcommands is right. If so, we can just look

		TclGetString(objv[1+ensemblePtr->numParameters]), NULL);
	return TCL_ERROR;
    }
    errorObj = Tcl_ObjPrintf("unknown%s subcommand \"%s\": must be ",
	    (ensemblePtr->flags & TCL_ENSEMBLE_PREFIX ? " or ambiguous" : ""),
	    TclGetString(objv[1+ensemblePtr->numParameters]));
    if (ensemblePtr->subcommandTable.numEntries == 1) {
	Tcl_AppendToObj(errorObj, ensemblePtr->subcommandArrayPtr[0], TCL_NOSIZE);
    } else {
	int i;

	for (i=0 ; i<ensemblePtr->subcommandTable.numEntries-1 ; i++) {
	    Tcl_AppendToObj(errorObj, ensemblePtr->subcommandArrayPtr[i], TCL_NOSIZE);
	    Tcl_AppendToObj(errorObj, ", ", 2);
	}
	Tcl_AppendPrintfToObj(errorObj, "or %s",
		ensemblePtr->subcommandArrayPtr[i]);
    }
    Tcl_SetObjResult(interp, errorObj);
    return TCL_ERROR;

    Tcl_Preserve(ensemblePtr);
    ((Interp *) interp)->evalFlags |= TCL_EVAL_REDIRECT;
    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", TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "UNKNOWN_DELETED",
		    NULL);
	}
	result = TCL_ERROR;
    }
    Tcl_Release(ensemblePtr);

     * Oh no! An exceptional result. Convert 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: ", TCL_NOSIZE));
	    switch (result) {
	    case TCL_RETURN:
		Tcl_AppendToObj(Tcl_GetObjResult(interp), "return", TCL_NOSIZE);
		break;
	    case TCL_BREAK:
		Tcl_AppendToObj(Tcl_GetObjResult(interp), "break", TCL_NOSIZE);
		break;
	    case TCL_CONTINUE:
		Tcl_AppendToObj(Tcl_GetObjResult(interp), "continue", TCL_NOSIZE);
		break;
	    default:
		Tcl_AppendPrintfToObj(Tcl_GetObjResult(interp), "%d", result);
	    }
	    Tcl_AddErrorInfo(interp, "\n    result of "
		    "ensemble unknown subcommand handler: ");
	    Tcl_AddErrorInfo(interp, TclGetString(unknownCmd));

	TclNewLiteralStringObj(varNamePtr, "env");
	Tcl_IncrRefCount(varNamePtr);
	TclArraySet(interp, varNamePtr, NULL);
	Tcl_DecrRefCount(varNamePtr);
    } else {
	Tcl_MutexLock(&envMutex);
	for (i = 0; environ[i] != NULL; i++) {
	    p1 = Tcl_ExternalToUtfDString(NULL, environ[i], TCL_NOSIZE, &envString);
	    p2 = strchr(p1, '=');
	    if (p2 == NULL) {
		/*
		 * This condition seem to happen occasionally under some
		 * versions of Solaris, or when encoding accidents swallow the
		 * '='; ignore the entry.
		 */

	 * Compare the new value to the existing value. If they're the same
	 * then quit immediately (e.g. don't rewrite the value or propagate it
	 * to other interpreters). Otherwise, when there are N interpreters
	 * there will be N! propagations of the same value among the
	 * interpreters.
	 */

	env = Tcl_ExternalToUtfDString(NULL, environ[index], TCL_NOSIZE, &envString);
	if (strcmp(value, env + (length + 1)) == 0) {
	    Tcl_DStringFree(&envString);
	    Tcl_MutexUnlock(&envMutex);
	    return;
	}
	Tcl_DStringFree(&envString);

     */

    valueLength = strlen(value);
    p = ckalloc(nameLength + valueLength + 2);
    memcpy(p, name, nameLength);
    p[nameLength] = '=';
    memcpy(p+nameLength+1, value, valueLength+1);
    p2 = Tcl_UtfToExternalDString(NULL, p, TCL_NOSIZE, &envString);

    /*
     * Copy the native string to heap memory.
     */

    p = ckrealloc(p, Tcl_DStringLength(&envString) + 1);
    memcpy(p, p2, (unsigned) Tcl_DStringLength(&envString) + 1);

    }

    /*
     * First convert the native string to UTF. Then separate the string into
     * name and value parts, and call TclSetEnv to do all of the real work.
     */

    name = Tcl_ExternalToUtfDString(NULL, assignment, TCL_NOSIZE, &nameString);
    value = strchr(name, '=');

    if ((value != NULL) && (value != name)) {
	value[0] = '\0';
	TclSetEnv(name, value+1);
    }

    string[length+1] = '\0';
#else
    string = ckalloc(length + 1);
    memcpy(string, name, (size_t) length);
    string[length] = '\0';
#endif /* WIN32 */

    Tcl_UtfToExternalDString(NULL, string, TCL_NOSIZE, &envString);
    string = ckrealloc(string, Tcl_DStringLength(&envString) + 1);
    memcpy(string, Tcl_DStringValue(&envString),
	    (unsigned) Tcl_DStringLength(&envString)+1);
    Tcl_DStringFree(&envString);

    putenv(string);

    Tcl_MutexLock(&envMutex);
    index = TclpFindVariable(name, &length);
    result = NULL;
    if (index != -1) {
	Tcl_DString envStr;

	result = Tcl_ExternalToUtfDString(NULL, environ[index], TCL_NOSIZE, &envStr);
	result += length;
	if (*result == '=') {
	    result++;
	    Tcl_DStringInit(valuePtr);
	    Tcl_DStringAppend(valuePtr, result, TCL_NOSIZE);
	    result = Tcl_DStringValue(valuePtr);
	} else {
	    result = NULL;
	}
	Tcl_DStringFree(&envStr);
    }
    Tcl_MutexUnlock(&envMutex);

		TclNewLiteralStringObj(keyPtr, "-errorinfo");
		Tcl_IncrRefCount(keyPtr);
		Tcl_DictObjGet(NULL, options, keyPtr, &valuePtr);
		Tcl_DecrRefCount(keyPtr);

		Tcl_WriteChars(errChannel,
			"error in background error handler:\n", TCL_NOSIZE);
		if (valuePtr) {
		    Tcl_WriteObj(errChannel, valuePtr);
		} else {
		    Tcl_WriteObj(errChannel, Tcl_GetObjResult(interp));
		}
		Tcl_WriteChars(errChannel, "\n", 1);
		Tcl_Flush(errChannel);

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

		Tcl_IncrRefCount(resultPtr);
		if (Tcl_FindCommand(interp, "bgerror", NULL,
			TCL_GLOBAL_ONLY) == NULL) {
		    Tcl_RestoreInterpState(interp, saved);
		    Tcl_WriteObj(errChannel, Tcl_GetVar2Ex(interp,
			    "errorInfo", NULL, TCL_GLOBAL_ONLY));
		    Tcl_WriteChars(errChannel, "\n", TCL_NOSIZE);
		} else {
		    Tcl_DiscardInterpState(saved);
		    Tcl_WriteChars(errChannel,
			    "bgerror failed to handle background error.\n",-1);
		    Tcl_WriteChars(errChannel, "    Original error: ", TCL_NOSIZE);
		    Tcl_WriteObj(errChannel, tempObjv[1]);
		    Tcl_WriteChars(errChannel, "\n", TCL_NOSIZE);
		    Tcl_WriteChars(errChannel, "    Error in bgerror: ", TCL_NOSIZE);
		    Tcl_WriteObj(errChannel, resultPtr);
		    Tcl_WriteChars(errChannel, "\n", TCL_NOSIZE);
		}
		Tcl_DecrRefCount(resultPtr);
		Tcl_Flush(errChannel);
	    } else {
		Tcl_DiscardInterpState(saved);
	    }
	}

    while (!done && foundEvent) {
	foundEvent = Tcl_DoOneEvent(TCL_ALL_EVENTS);
	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", TCL_NOSIZE));
	    break;
	}
    }
    Tcl_UntraceVar(interp, nameString,
	    TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
	    VwaitVarProc, &done);

    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", TCL_NOSIZE));
	    return TCL_ERROR;
	}
    }

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

    case INST_YIELD: {
	CoroutineData *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", TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ILLEGAL_YIELD",
		    NULL);
	    goto gotError;
	}

#ifdef TCL_COMPILE_DEBUG
	TRACE_WITH_OBJ(("yield, result="), iPtr->objResultPtr);

        NRE_callback *tailcallPtr;

	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", TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "TCL", "TAILCALL", "ILLEGAL", NULL);
	    goto gotError;
	}

#ifdef TCL_COMPILE_DEBUG
	{
	    register int i;

	/*
	 * Push the evaluation of the called command into the NR callback
	 * stack.
	 */

	listPtr = Tcl_NewListObj(opnd, &OBJ_AT_DEPTH(opnd-1));
	nsObjPtr = Tcl_NewStringObj(iPtr->varFramePtr->nsPtr->fullName, TCL_NOSIZE);
	Tcl_IncrRefCount(listPtr);
	Tcl_IncrRefCount(nsObjPtr);
	TclNRAddCallback(interp, TclNRTailcallEval, listPtr, nsObjPtr,
		NULL, NULL);

	/*
	 * Unstitch ourselves and do a [return].

	}
	part1Ptr = objPtr;
	opnd = -1;
	varPtr = TclObjLookupVarEx(interp, objPtr, part2Ptr,
		TCL_LEAVE_ERR_MSG, "read", 1, 1, &arrayPtr);
	if (!varPtr) {
	    Tcl_AddObjErrorInfo(interp,
		    "\n    (reading value of variable to increment)", TCL_NOSIZE);
	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
	    Tcl_DecrRefCount(incrPtr);
	    goto gotError;
	}
	cleanup = ((part2Ptr == NULL)? 1 : 2);
	goto doIncrVar;

	CallContext *contextPtr;

	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",
		    TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "TCL", "OO", "CONTEXT_REQUIRED", NULL);
	    goto gotError;
	}
	contextPtr = framePtr->clientData;

	/*
	 * Call out to get the name; it's expensive to compute but cached.

		    lResult = l1 - l2*lResult;
		    goto longResultOfArithmetic;
		}

	    case INST_RSHIFT:
		if (l2 < 0) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "negative shift argument", TCL_NOSIZE));
#if 0
		    DECACHE_STACK_INFO();
		    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
			    "domain error: argument not in valid range",
			    NULL);
		    CACHE_STACK_INFO();
#endif

		    lResult = l1 >> ((int) l2);
		    goto longResultOfArithmetic;
		}

	    case INST_LSHIFT:
		if (l2 < 0) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "negative shift argument", TCL_NOSIZE));
#if 0
		    DECACHE_STACK_INFO();
		    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
			    "domain error: argument not in valid range",
			    NULL);
		    CACHE_STACK_INFO();
#endif

		     * 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", TCL_NOSIZE));
#if 0
		    DECACHE_STACK_INFO();
		    Tcl_SetErrorCode(interp, "ARITH", "IOVERFLOW",
			    "integer value too large to represent", NULL);
		    CACHE_STACK_INFO();
#endif
		    goto gotError;

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

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

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

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

	/*
	 * Almost all error paths feed through here rather than assigning to
	 * result themselves (for a small but consistent saving).

	    break;
	default:
	    /* Unused, here to silence compiler warning */
	    invalid = 0;
	}
	if (invalid) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "negative shift argument", TCL_NOSIZE));
	    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", TCL_NOSIZE));
		return GENERAL_ARITHMETIC_ERROR;
	    }
	    shift = (int)(*((const long *)ptr2));

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

	 * range of the long int type. This means any numeric Tcl_Obj value
	 * not using TCL_NUMBER_LONG type must hold a value larger than we
	 * accept.
	 */

	if (type2 != TCL_NUMBER_LONG) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "exponent too large", TCL_NOSIZE));
	    return GENERAL_ARITHMETIC_ERROR;
	}

	if (type1 == TCL_NUMBER_LONG) {
	    if (l1 == 2) {
		/*
		 * Reduce small powers of 2 to shifts.

#endif

    overflowExpon:
	Tcl_TakeBignumFromObj(NULL, value2Ptr, &big2);
	if (big2.used > 1) {
	    mp_clear(&big2);
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "exponent too large", TCL_NOSIZE));
	    return GENERAL_ARITHMETIC_ERROR;
	}
	Tcl_TakeBignumFromObj(NULL, valuePtr, &big1);
	mp_init(&bigResult);
	mp_expt_d(&big1, big2.dp[0], &bigResult);
	mp_clear(&big1);
	mp_clear(&big2);

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

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

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

		Tcl_ResetResult(interp);
	    }

	    res = Tcl_FSFileAttrsGet(interp, index, filePtr, &objPtrAttr);
	    if (res == TCL_OK) {
		Tcl_Obj *objPtr =
			Tcl_NewStringObj(attributeStrings[index], TCL_NOSIZE);

		Tcl_ListObjAppendElement(interp, listPtr, objPtr);
		Tcl_ListObjAppendElement(interp, listPtr, objPtrAttr);
		nbAtts++;
	    }
	}

    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), TCL_NOSIZE));
    return TCL_OK;
}

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

 */

Tcl_PathType
Tcl_GetPathType(
    const char *path)
{
    Tcl_PathType type;
    Tcl_Obj *tempObj = Tcl_NewStringObj(path, TCL_NOSIZE);

    Tcl_IncrRefCount(tempObj);
    type = Tcl_FSGetPathType(tempObj);
    Tcl_DecrRefCount(tempObj);
    return type;
}


    char *p;
    const char *str;

    /*
     * Perform the splitting, using objectified, vfs-aware code.
     */

    tmpPtr = Tcl_NewStringObj(path, TCL_NOSIZE);
    Tcl_IncrRefCount(tmpPtr);
    resultPtr = Tcl_FSSplitPath(tmpPtr, argcPtr);
    Tcl_IncrRefCount(resultPtr);
    Tcl_DecrRefCount(tmpPtr);

    /*
     * Calculate space required for the result.

    /*
     * Build the list of paths.
     */

    for (i = 0; i < argc; i++) {
	Tcl_ListObjAppendElement(NULL, listObj,
		Tcl_NewStringObj(argv[i], TCL_NOSIZE));
    }

    /*
     * Ask the objectified code to join the paths.
     */

    Tcl_IncrRefCount(listObj);

    const char *name,		/* File name, which may begin with "~" (to
				 * indicate current user's home directory) or
				 * "~<user>" (to indicate any user's home
				 * directory). */
    Tcl_DString *bufferPtr)	/* Uninitialized or free DString filled with
				 * name after tilde substitution. */
{
    Tcl_Obj *path = Tcl_NewStringObj(name, TCL_NOSIZE);
    Tcl_Obj *transPtr;

    Tcl_IncrRefCount(path);
    transPtr = Tcl_FSGetTranslatedPath(interp, path);
    if (transPtr == NULL) {
	Tcl_DecrRefCount(path);
	return NULL;

	Tcl_DString dirString;

	dir = TclGetEnv("HOME", &dirString);
	if (dir == NULL) {
	    if (interp) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"couldn't find HOME environment "
			"variable to expand path", TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "FILENAME", "NO_HOME", NULL);
	    }
	    return NULL;
	}
	Tcl_JoinPath(1, &dir, resultPtr);
	Tcl_DStringFree(&dirString);
    } else if (TclpGetUserHome(user, resultPtr) == NULL) {

	switch (index) {
	case GLOB_NOCOMPLAIN:			/* -nocomplain */
	    globFlags |= TCL_GLOBMODE_NO_COMPLAIN;
	    break;
	case GLOB_DIR:				/* -dir */
	    if (i == (objc-1)) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"missing argument to \"-directory\"", TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", NULL);
		return TCL_ERROR;
	    }
	    if (dir != PATH_NONE) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"\"-directory\" cannot be used with \"-path\"", TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "GLOB",
			"BADOPTIONCOMBINATION", 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\"", TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", NULL);
		return TCL_ERROR;
	    }
	    if (dir != PATH_NONE) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"\"-path\" cannot be used with \"-directory\"", TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "GLOB",
			"BADOPTIONCOMBINATION", 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\"", TCL_NOSIZE));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", NULL);
		return TCL_ERROR;
	    }
	    typePtr = objv[i+1];
	    if (Tcl_ListObjLength(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\"", TCL_NOSIZE));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "GLOB",
		"BADOPTIONCOMBINATION", NULL);
	return TCL_ERROR;
    }

    separators = NULL;		/* lint. */
    switch (tclPlatform) {

		/*
		 * The whole thing is a prefix. This means we must remove any
		 * 'tails' flag too, since it is irrelevant now (the same
		 * effect will happen without it), but in particular its use
		 * in TclGlob requires a non-NULL pathOrDir.
		 */

		Tcl_DStringAppend(&pref, first, TCL_NOSIZE);
		globFlags &= ~TCL_GLOBMODE_TAILS;
		pathOrDir = NULL;
	    } else {
		/*
		 * Have to split off the end.
		 */

		Tcl_DStringAppend(&prefix, find, 1);
		search = find+1;
		if (*search == '\0') {
		    break;
		}
	    }
	    if (*search != '\0') {
		Tcl_DStringAppend(&prefix, search, TCL_NOSIZE);
	    }
	    Tcl_DStringFree(&pref);
	}
    }

    if (pathOrDir != NULL) {
	Tcl_IncrRefCount(pathOrDir);

		result = TCL_ERROR;
		join = 0;
		goto endOfGlob;

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

	if (length == 0) {
	    Tcl_Obj *errorMsg =
		    Tcl_ObjPrintf("no files matched glob pattern%s \"",
			    (join || (objc == 1)) ? "" : "s");

	    if (join) {
		Tcl_AppendToObj(errorMsg, Tcl_DStringValue(&prefix), TCL_NOSIZE);
	    } else {
		const char *sep = "";

		for (i = 0; i < objc; i++) {
		    Tcl_AppendPrintfToObj(errorMsg, "%s%s",
			    sep, Tcl_GetString(objv[i]));
		    sep = " ";
		}
	    }
	    Tcl_AppendToObj(errorMsg, "\"", TCL_NOSIZE);
	    Tcl_SetObjResult(interp, errorMsg);
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "GLOB", "NOMATCH",
		    NULL);
	    result = TCL_ERROR;
	}
    }

	    *tail = '\0';
	    head = DoTildeSubst(interp, start+1, &buffer);
	    *tail = c;
	    if (head == NULL) {
		return TCL_ERROR;
	    }
	    if (head != Tcl_DStringValue(&buffer)) {
		Tcl_DStringAppend(&buffer, head, TCL_NOSIZE);
	    }
	    pathPrefix = TclDStringToObj(&buffer);
	    Tcl_IncrRefCount(pathPrefix);
	    globFlags |= TCL_GLOBMODE_DIR;
	    if (c != '\0') {
		tail++;
	    }

	    }
	    tail = p;
	    Tcl_IncrRefCount(pathPrefix);
	} else if (pathPrefix == NULL && (tail[0] == '/'
		|| (tail[0] == '\\' && tail[1] == '\\'))) {
	    int driveNameLen;
	    Tcl_Obj *driveName;
	    Tcl_Obj *temp = Tcl_NewStringObj(tail, TCL_NOSIZE);
	    Tcl_IncrRefCount(temp);

	    switch (TclGetPathType(temp, NULL, &driveNameLen, &driveName)) {
	    case TCL_PATH_VOLUME_RELATIVE: {
		/*
		 * Volume relative path which is equivalent to a path in the
		 * root of the cwd's volume. We will actually return

		 * Balanced braces.
		 */

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

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

    /*

	*closeBrace = '\0';
	for (p = openBrace; p != closeBrace; ) {
	    p++;
	    element = p;
	    SkipToChar(&p, ',');
	    Tcl_DStringSetLength(&newName, baseLength);
	    Tcl_DStringAppend(&newName, element, p-element);
	    Tcl_DStringAppend(&newName, closeBrace+1, TCL_NOSIZE);
	    result = DoGlob(interp, matchesObj, separators, pathPtr, flags,
		    Tcl_DStringValue(&newName), types);
	    if (result != TCL_OK) {
		break;
	    }
	}
	*closeBrace = '}';

			    Channel *chanPtr);
static int		CloseChannel(Tcl_Interp *interp, Channel *chanPtr,
			    int errorCode);
static int		CloseChannelPart(Tcl_Interp *interp, Channel *chanPtr,
			    int errorCode, int flags);
static int		CloseWrite(Tcl_Interp *interp, Channel *chanPtr);
static void		CommonGetsCleanup(Channel *chanPtr);
static TCL_SIZE_T CopyAndTranslateBuffer(ChannelState *statePtr,
			    char *result, TCL_SIZE_T space);
static TCL_SIZE_T CopyBuffer(Channel *chanPtr, char *result, TCL_SIZE_T space);
static int		CopyData(CopyState *csPtr, int mask);
static void		CopyEventProc(ClientData clientData, int mask);
static void		CreateScriptRecord(Tcl_Interp *interp,
			    Channel *chanPtr, int mask, Tcl_Obj *scriptPtr);
static void		DeleteChannelTable(ClientData clientData,
			    Tcl_Interp *interp);
static void		DeleteScriptRecord(Tcl_Interp *interp,
			    Channel *chanPtr, int mask);
static int		DetachChannel(Tcl_Interp *interp, Tcl_Channel chan);
static void		DiscardInputQueued(ChannelState *statePtr,
			    int discardSavedBuffers);
static void		DiscardOutputQueued(ChannelState *chanPtr);
static TCL_SIZE_T DoRead(Channel *chanPtr, char *srcPtr, TCL_SIZE_T slen, int allowShortReads);
static TCL_SIZE_T DoWrite(Channel *chanPtr, const char *src, TCL_SIZE_T srcLen);
static TCL_SIZE_T DoReadChars(Channel *chan, Tcl_Obj *objPtr, TCL_SIZE_T toRead,
			    int appendFlag);
static int		DoWriteChars(Channel *chan, const char *src, int len);
static int		FilterInputBytes(Channel *chanPtr,
			    GetsState *statePtr);
static int		FlushChannel(Tcl_Interp *interp, Channel *chanPtr,
			    int calledFromAsyncFlush);
static int		TclGetsObjBinary(Tcl_Channel chan, Tcl_Obj *objPtr);

    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", TCL_NOSIZE));
	}
	return TCL_ERROR;
    }

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

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

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

		 * 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), TCL_NOSIZE));
		}

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

	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", TCL_NOSIZE));
	}
	return TCL_ERROR;
    }
    SetFlag(statePtr, CHANNEL_INCLOSE);

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

	result = EINVAL;
    }

    if (stickyError != 0) {
	Tcl_SetErrno(stickyError);
	if (interp != NULL) {
	    Tcl_SetObjResult(interp,
			     Tcl_NewStringObj(Tcl_PosixError(interp), TCL_NOSIZE));
	}
	flushcode = -1;
    }
    if ((flushcode != 0) || (result != 0)) {
	return TCL_ERROR;
    }
    return TCL_OK;

    /*
     * Is the channel unstacked ? If not we fail.
     */

    if (chanPtr != statePtr->topChanPtr) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"half-close not applicable to stack of transformations", TCL_NOSIZE));
	return TCL_ERROR;
    }

    /*
     * Check direction against channel mode. It is an error if we try to close
     * a direction not supported by the channel (already closed, or never
     * opened for that direction).

     * handler. That won't do.
     */

    if (statePtr->flags & CHANNEL_INCLOSE) {
	if (interp) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
                    "illegal recursive call to close through close-handler"
                    " of channel", TCL_NOSIZE));
	}
	return TCL_ERROR;
    }

    if (flags & TCL_CLOSE_READ) {
	/*
	 * Call the finalization code directly. There are no events to handle,

    Tcl_Channel chan,		/* The channel from which to read. */
    char *bufPtr,		/* Where to store input read. */
    int bytesToRead)		/* Maximum number of bytes to read. */
{
    Channel *chanPtr = (Channel *) chan;
    ChannelState *statePtr = chanPtr->state;
				/* State info for channel */
    TCL_SIZE_T nread, result, copied, copiedNow;

    /*
     * The check below does too much because it will reject a call to this
     * function with a channel which is part of an 'fcopy'. But we have to
     * allow this here or else the chaining in the transformation drivers will
     * fail with 'file busy' error instead of retrieving and transforming the
     * data to copy.

 */

int
Tcl_ReadChars(
    Tcl_Channel chan,		/* The channel to read. */
    Tcl_Obj *objPtr,		/* Input data is stored in this object. */
    int toRead,			/* Maximum number of characters to store, or
				 * TCL_NOSIZE to read all available data (up to EOF or
				 * when channel blocks). */
    int appendFlag)		/* If non-zero, data read from the channel
				 * will be appended to the object. Otherwise,
				 * the data will replace the existing contents
				 * of the object. */
{
    Channel *chanPtr = (Channel *) chan;

	 * data in the buffers.
	 */

	UpdateInterest(chanPtr);
	return -1;
    }

    return (int) DoReadChars(chanPtr, objPtr, toRead, appendFlag);
}
/*
 *---------------------------------------------------------------------------
 *
 * DoReadChars --
 *
 *	Reads from the channel until the requested number of characters have
 *	been seen, EOF is seen, or the channel would block. EOL and EOF
 *	translation is done. If reading binary data, the raw bytes are wrapped
 *	in a Tcl byte array object. Otherwise, the raw bytes are converted to
 *	UTF-8 using the channel's current encoding and stored in a Tcl string
 *	object.
 *
 * Results:
 *	The number of characters read, or TCL_NOSIZE on error. Use Tcl_GetErrno() to
 *	retrieve the error code for the error that occurred.
 *
 * Side effects:
 *	May cause input to be buffered.
 *
 *---------------------------------------------------------------------------
 */

static TCL_SIZE_T
DoReadChars(
    Channel *chanPtr,		/* The channel to read. */
    Tcl_Obj *objPtr,		/* Input data is stored in this object. */
    TCL_SIZE_T toRead,			/* Maximum number of characters to store, or
				 * -1 to read all available data (up to EOF or
				 * when channel blocks). */
    int appendFlag)		/* If non-zero, data read from the channel
				 * will be appended to the object. Otherwise,
				 * the data will replace the existing contents
				 * of the object. */
{
    ChannelState *statePtr = chanPtr->state;
				/* State info for channel */
    ChannelBuffer *bufPtr;
    TCL_SIZE_T offset, factor, copied, copiedNow;
    int result;
    Tcl_Encoding encoding;
#define UTF_EXPANSION_FACTOR	1024

    /*
     * This operation should occur at the top of a channel stack.
     */

 *
 * Side effects:
 *	May flush output on the channel. May discard queued input.
 *
 *----------------------------------------------------------------------
 */

TCL_SIZE_T
Tcl_Seek(
    Tcl_Channel chan,		/* The channel on which to seek. */
    TCL_SIZE_T offset,			/* Offset to seek to. */
    int mode)			/* Relative to which location to seek? */
{
    Channel *chanPtr = (Channel *) chan;
				/* The real IO channel. */
    ChannelState *statePtr = chanPtr->state;
				/* State info for channel */
    int inputBuffered, outputBuffered;
				/* # bytes held in buffers. */
    int result;			/* Of device driver operations. */
    TCL_SIZE_T curPos;		/* Position on the device. */
    int wasAsync;		/* Was the channel nonblocking before the seek
				 * operation? If so, must restore to
				 * non-blocking mode after the seek. */

    if (CheckChannelErrors(statePtr, TCL_WRITABLE | TCL_READABLE) != 0) {
	return TCL_NOSIZE;
    }

    /*
     * Disallow seek on dead channels - channels that have been closed but not
     * yet been deallocated. Such channels can be found if the exit handler
     * for channel cleanup has run but the channel is still registered in an
     * interpreter.
     */

    if (CheckForDeadChannel(NULL, statePtr)) {
	return TCL_NOSIZE;
    }

    /*
     * This operation should occur at the top of a channel stack.
     */

    chanPtr = statePtr->topChanPtr;

    /*
     * Disallow seek on channels whose type does not have a seek procedure
     * defined. This means that the channel does not support seeking.
     */

    if (chanPtr->typePtr->seekProc == NULL) {
	Tcl_SetErrno(EINVAL);
	return TCL_NOSIZE;
    }

    /*
     * Compute how much input and output is buffered. If both input and output
     * is buffered, cannot compute the current position.
     */

    inputBuffered = Tcl_InputBuffered(chan);
    outputBuffered = Tcl_OutputBuffered(chan);

    if ((inputBuffered != 0) && (outputBuffered != 0)) {
	Tcl_SetErrno(EFAULT);
	return TCL_NOSIZE;
    }

    /*
     * If we are seeking relative to the current position, compute the
     * corrected offset taking into account the amount of unread input.
     */

 *
 * Tcl_Tell --
 *
 *	Returns the position of the next character to be read/written on this
 *	channel.
 *
 * Results:
 *	A nonnegative integer on success, TCL_NOSIZE on failure. If failed, use
 *	Tcl_GetErrno() to retrieve the POSIX error code for the error that
 *	occurred.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

TCL_SIZE_T
Tcl_Tell(
    Tcl_Channel chan)		/* The channel to return pos for. */
{
    Channel *chanPtr = (Channel *) chan;
				/* The real IO channel. */
    ChannelState *statePtr = chanPtr->state;
				/* State info for channel */
    TCL_SIZE_T inputBuffered, outputBuffered;
				/* # bytes held in buffers. */
    int result;			/* Of calling device driver. */
    TCL_SIZE_T curPos;		/* Position on device. */

    if (CheckChannelErrors(statePtr, TCL_WRITABLE | TCL_READABLE) != 0) {
	return TCL_NOSIZE;
    }

    /*
     * Disallow tell on dead channels -- channels that have been closed but
     * not yet been deallocated. Such channels can be found if the exit
     * handler for channel cleanup has run but the channel is still registered
     * in an interpreter.
     */

    if (CheckForDeadChannel(NULL, statePtr)) {
	return TCL_NOSIZE;
    }

    /*
     * This operation should occur at the top of a channel stack.
     */

    chanPtr = statePtr->topChanPtr;

    /*
     * Disallow tell on channels whose type does not have a seek procedure
     * defined. This means that the channel does not support seeking.
     */

    if (chanPtr->typePtr->seekProc == NULL) {
	Tcl_SetErrno(EINVAL);
	return TCL_NOSIZE;
    }

    /*
     * Compute how much input and output is buffered. If both input and output
     * is buffered, cannot compute the current position.
     */

    inputBuffered = Tcl_InputBuffered(chan);
    outputBuffered = Tcl_OutputBuffered(chan);

    /*
     * Get the current position in the device and compute the position where
     * the next character will be read or written. Note that we prefer the
     * wideSeekProc if that is available and non-NULL...
     */

    curPos = ChanSeek(chanPtr, 0, SEEK_CUR, &result);
    if (curPos == TCL_NOSIZE) {
	Tcl_SetErrno(result);
	return TCL_NOSIZE;
    }

    if (inputBuffered != 0) {
	return curPos - inputBuffered;
    }
    return curPos + outputBuffered;
}

/*
 *---------------------------------------------------------------------------
 *
 * Tcl_SeekOld, Tcl_TellOld --
 *
 *	Backward-compatability versions of the seek/tell interface which used
 *	64-bit offsets. This interface is not documented or expected
 *	to be supported indefinitely.
 *
 * Results:
 *	As for Tcl_Seek and Tcl_Tell respectively, except expanded to
 *	64-bits even on platforms which support only 32-bits.
 *
 * Side effects:
 *	As for Tcl_Seek and Tcl_Tell respectively.
 *
 *---------------------------------------------------------------------------
 */

Tcl_WideInt
Tcl_SeekOld(
    Tcl_Channel chan,		/* The channel on which to seek. */
    Tcl_WideInt offset,		/* Offset to seek to. */
    int mode)			/* Relative to which location to seek? */
{
	TCL_SIZE_T wResult;

    wResult = Tcl_Seek(chan, (TCL_SIZE_T) offset, mode);
    if (wResult == TCL_NOSIZE) {
    	return -1;
    }
    return (Tcl_WideInt) wResult;
}

Tcl_WideInt
Tcl_TellOld(
    Tcl_Channel chan)		/* The channel to return pos for. */
{
    TCL_SIZE_T wResult = Tcl_Tell(chan);

    if (wResult == TCL_NOSIZE) {
    	return -1;
    }
    return (Tcl_WideInt) wResult;
}

/*
 *---------------------------------------------------------------------------
 *
 * Tcl_TruncateChannel --
 *
 *	Truncate a channel to the given length.

		"blocking buffering buffersize encoding eofchar translation";
	const char **argv;
	int argc, i;
	Tcl_DString ds;
        Tcl_Obj *errObj;

	Tcl_DStringInit(&ds);
	Tcl_DStringAppend(&ds, genericopt, TCL_NOSIZE);
	if (optionList && (*optionList)) {
	    TclDStringAppendLiteral(&ds, " ");
	    Tcl_DStringAppend(&ds, optionList, TCL_NOSIZE);
	}
	if (Tcl_SplitList(interp, Tcl_DStringValue(&ds),
		&argc, &argv) != TCL_OK) {
	    Tcl_Panic("malformed option list in channel driver");
	}
	Tcl_ResetResult(interp);
	errObj = Tcl_ObjPrintf("bad option \"%s\": should be one of ",

     * If the channel is in the middle of a background copy, fail.
     */

    if (statePtr->csPtrR || statePtr->csPtrW) {
	if (interp) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
                    "unable to set channel options: background copy in"
                    " progress", TCL_NOSIZE));
	}
	return TCL_ERROR;
    }

    /*
     * Disallow options on dead channels -- channels that have been closed but
     * not yet been deallocated. Such channels can be found if the exit

	} else if ((newValue[0] == 'n') &&
		(strncmp(newValue, "none", len) == 0)) {
	    ResetFlag(statePtr, CHANNEL_LINEBUFFERED);
	    SetFlag(statePtr, CHANNEL_UNBUFFERED);
	} else if (interp) {
            Tcl_SetObjResult(interp, Tcl_NewStringObj(
                    "bad value for -buffering: must be one of"
                    " full, line, or none", TCL_NOSIZE));
            return TCL_ERROR;
	}
	return TCL_OK;
    } else if (HaveOpt(7, "-buffersize")) {
	int newBufferSize;

	if (Tcl_GetInt(interp, newValue, &newBufferSize) == TCL_ERROR) {

	    int inValue = (int) argv[0][0];
	    int outValue = (int) argv[outIndex][0];

	    if (inValue & 0x80 || outValue & 0x80) {
		if (interp) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
                            "bad value for -eofchar: must be non-NUL ASCII"
                            " character", TCL_NOSIZE));
		}
		ckfree(argv);
		return TCL_ERROR;
	    }
	    if (GotFlag(statePtr, TCL_READABLE)) {
		statePtr->inEofChar = inValue;
	    }
	    if (GotFlag(statePtr, TCL_WRITABLE)) {
		statePtr->outEofChar = outValue;
	    }
	} else {
	    if (interp) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"bad value for -eofchar: should be a list of zero,"
			" one, or two elements", TCL_NOSIZE));
	    }
	    ckfree(argv);
	    return TCL_ERROR;
	}
	if (argv != NULL) {
	    ckfree(argv);
	}

	} else if (argc == 2) {
	    readMode = GotFlag(statePtr, TCL_READABLE) ? argv[0] : NULL;
	    writeMode = GotFlag(statePtr, TCL_WRITABLE) ? argv[1] : NULL;
	} else {
	    if (interp) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"bad value for -translation: must be a one or two"
			" element list", TCL_NOSIZE));
	    }
	    ckfree(argv);
	    return TCL_ERROR;
	}

	if (readMode) {
	    TclEolTranslation translation;

		translation = TCL_TRANSLATE_CRLF;
	    } else if (strcmp(readMode, "platform") == 0) {
		translation = TCL_PLATFORM_TRANSLATION;
	    } else {
		if (interp) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "bad value for -translation: must be one of "
                            "auto, binary, cr, lf, crlf, or platform", TCL_NOSIZE));
		}
		ckfree(argv);
		return TCL_ERROR;
	    }

	    /*
	     * Reset the EOL flags since we need to look at any buffered data

		statePtr->outputTranslation = TCL_TRANSLATE_CRLF;
	    } else if (strcmp(writeMode, "platform") == 0) {
		statePtr->outputTranslation = TCL_PLATFORM_TRANSLATION;
	    } else {
		if (interp) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "bad value for -translation: must be one of "
                            "auto, binary, cr, lf, crlf, or platform", TCL_NOSIZE));
		}
		ckfree(argv);
		return TCL_ERROR;
	    }
	}
	ckfree(argv);
	return TCL_OK;

 *	May schedule a background copy operation that causes both channels to
 *	be marked busy.
 *
 *----------------------------------------------------------------------
 */

int
TclCopyChannelOld(
    Tcl_Interp *interp,		/* Current interpreter. */
    Tcl_Channel inChan,		/* Channel to read from. */
    Tcl_Channel outChan,	/* Channel to write to. */
    Tcl_WideInt toRead,		/* Amount of data to copy, or -1 for all. */
    Tcl_Obj *cmdPtr)		/* Pointer to script to execute or NULL. */
{
    return TclCopyChannelOld(interp, inChan, outChan, (TCL_SIZE_T) toRead,
            cmdPtr);
}

int
TclCopyChannel(
    Tcl_Interp *interp,		/* Current interpreter. */
    Tcl_Channel inChan,		/* Channel to read from. */
    Tcl_Channel outChan,	/* Channel to write to. */
    TCL_SIZE_T toRead,		/* Amount of data to copy, or TCL_NO_SIZE for all. */
    Tcl_Obj *cmdPtr)		/* Pointer to script to execute or NULL. */
{
    Channel *inPtr = (Channel *) inChan;
    Channel *outPtr = (Channel *) outChan;
    ChannelState *inStatePtr, *outStatePtr;
    int readFlags, writeFlags;
    CopyState *csPtr;
    int nonBlocking = (cmdPtr) ? CHANNEL_NONBLOCKING : 0;

    csPtr = ckalloc(sizeof(CopyState) + inStatePtr->bufSize);
    csPtr->bufSize = inStatePtr->bufSize;
    csPtr->readPtr = inPtr;
    csPtr->writePtr = outPtr;
    csPtr->readFlags = readFlags;
    csPtr->writeFlags = writeFlags;
    csPtr->toRead = toRead;
    csPtr->total = 0;
    csPtr->interp = interp;
    if (cmdPtr) {
	Tcl_IncrRefCount(cmdPtr);
    }
    csPtr->cmdPtr = cmdPtr;

    inStatePtr->csPtrR  = csPtr;

    CopyState *csPtr,		/* State of copy operation. */
    int mask)			/* Current channel event flags. */
{
    Tcl_Interp *interp;
    Tcl_Obj *cmdPtr, *errObj = NULL, *bufObj = NULL, *msg = NULL;
    Tcl_Channel inChan, outChan;
    ChannelState *inStatePtr, *outStatePtr;
    int result = TCL_OK;
    TCL_SIZE_T size, sizeb, total;
    const char *buffer;
    int inBinary, outBinary, sameEncoding;
				/* Encoding control */
    int underflow;		/* Input underflow */

    inChan	= (Tcl_Channel) csPtr->readPtr;
    outChan	= (Tcl_Channel) csPtr->writePtr;

    sameEncoding = (inStatePtr->encoding == outStatePtr->encoding);

    if (!(inBinary || sameEncoding)) {
	TclNewObj(bufObj);
	Tcl_IncrRefCount(bufObj);
    }

    while (csPtr->toRead != 0) {
	/*
	 * Check for unreported background errors.
	 */

	Tcl_GetChannelError(inChan, &msg);
	if ((inStatePtr->unreportedError != 0) || (msg != NULL)) {
	    Tcl_SetErrno(inStatePtr->unreportedError);

	    size = 0;
	    underflow = 1;
	} else {
	    /*
	     * Read up to bufSize bytes.
	     */

	    if ((csPtr->toRead == TCL_NOSIZE)
                    || (csPtr->toRead > csPtr->bufSize)) {
		sizeb = csPtr->bufSize;
	    } else {
		sizeb = csPtr->toRead;
	    }

	    if (inBinary || sameEncoding) {
		size = DoRead(inStatePtr->topChanPtr, csPtr->buffer, sizeb,
                              !GotFlag(inStatePtr, CHANNEL_NONBLOCKING));
	    } else {
		size = DoReadChars(inStatePtr->topChanPtr, bufObj, sizeb,

	/*
	 * Update the current byte count. Do it now so the count is valid
	 * before a return or break takes us out of the loop. The invariant at
	 * the top of the loop should be that csPtr->toRead holds the number
	 * of bytes left to copy.
	 */

	if (csPtr->toRead != TCL_NOSIZE) {
	    csPtr->toRead -= size;
	}
	csPtr->total += size;

	/*
	 * Break loop if EOF && (size>0)
	 */

 *
 * DoRead --
 *
 *	Reads a given number of bytes from a channel. No encoding conversions
 *	are applied to the bytes being read.
 *
 * Results:
 *	The number of characters read, or TCL_NOSIZE on error. Use Tcl_GetErrno() to
 *	retrieve the error code for the error that occurred.
 *
 * Side effects:
 *	May cause input to be buffered.
 *
 *----------------------------------------------------------------------
 */

static TCL_SIZE_T
DoRead(
    Channel *chanPtr,		/* The channel from which to read. */
    char *bufPtr,		/* Where to store input read. */
    TCL_SIZE_T toRead,			/* Maximum number of bytes to read. */
    int allowShortReads)	/* Allow half-blocking (pipes,sockets) */
{
    ChannelState *statePtr = chanPtr->state;
				/* State info for channel */
    TCL_SIZE_T copied;			/* How many characters were copied into the
				 * result string? */
    TCL_SIZE_T copiedNow;		/* How many characters were copied from the
				 * current input buffer? */
    int result;			/* Of calling GetInput. */

    /*
     * If we have not encountered a sticky EOF, clear the EOF bit. Either way
     * clear the BLOCKED bit. We want to discover these anew during each
     * operation.

		    goto done;
		}
		ResetFlag(statePtr, CHANNEL_BLOCKED);
	    }
	    result = GetInput(chanPtr);
	    if (result != 0) {
		if (result != EAGAIN) {
		    copied = TCL_NOSIZE;
		}
		goto done;
	    }
	} else if (allowShortReads) {
            copied += copiedNow;
            break;
        }

 *
 * Side effects:
 *	Consumes buffered input. May deallocate one buffer.
 *
 *----------------------------------------------------------------------
 */

static TCL_SIZE_T
CopyAndTranslateBuffer(
    ChannelState *statePtr,	/* Channel state from which to read input. */
    char *result,		/* Where to store the copied input. */
    TCL_SIZE_T space)			/* How many bytes are available in result to
				 * store the copied input? */
{
    ChannelBuffer *bufPtr;	/* The buffer from which to copy bytes. */
    TCL_SIZE_T bytesInBuffer;		/* How many bytes are available to be copied
				 * in the current input buffer? */
    TCL_SIZE_T copied;			/* How many characters were already copied
				 * into the destination space? */
    TCL_SIZE_T i;			/* Iterates over the copied input looking for
				 * the input eofChar. */

    /*
     * If there is no input at all, return zero. The invariant is that either
     * there is no buffer in the queue, or if the first buffer is empty, it is
     * also the last buffer (and thus there is no input in the queue). Note
     * also that if the buffer is empty, we leave it in the queue.

	/*
	 * Copy the current chunk into the result buffer.
	 */

	if (bytesInBuffer < space) {
	    space = bytesInBuffer;
	}
	memcpy(result, RemovePoint(bufPtr), space);
	bufPtr->nextRemoved += space;
	copied = space;
	break;
    case TCL_TRANSLATE_CR: {
	char *end;

	if (bytesInBuffer == 0) {

 *
 * Side effects:
 *	Consumes buffered input. May deallocate one buffer.
 *
 *----------------------------------------------------------------------
 */

static TCL_SIZE_T
CopyBuffer(
    Channel *chanPtr,		/* Channel from which to read input. */
    char *result,		/* Where to store the copied input. */
    TCL_SIZE_T space)			/* How many bytes are available in result to
				 * store the copied input? */
{
    ChannelBuffer *bufPtr;	/* The buffer from which to copy bytes. */
    TCL_SIZE_T bytesInBuffer;		/* How many bytes are available to be copied
				 * in the current input buffer? */
    TCL_SIZE_T copied;			/* How many characters were already copied
				 * into the destination space? */

    /*
     * If there is no input at all, return zero. The invariant is that either
     * there is no buffer in the queue, or if the first buffer is empty, it is
     * also the last buffer (and thus there is no input in the queue). Note
     * also that if the buffer is empty, we don't leave it in the queue, but

     * Copy the current chunk into the result buffer.
     */

    if (bytesInBuffer < space) {
	space = bytesInBuffer;
    }

    memcpy(result, RemovePoint(bufPtr), space);
    bufPtr->nextRemoved += space;
    copied = space;

    /*
     * We don't care about in-stream EOF characters here as the data read here
     * may still flow through one or more transformations, i.e. is not in its
     * final state yet.

    hTblPtr = GetChannelTable(interp);
    TclNewObj(resultPtr);
    if ((pattern != NULL) && TclMatchIsTrivial(pattern)
	    && !((pattern[0] == 's') && (pattern[1] == 't')
	    && (pattern[2] == 'd'))) {
	if ((Tcl_FindHashEntry(hTblPtr, pattern) != NULL)
		&& (Tcl_ListObjAppendElement(interp, resultPtr,
		Tcl_NewStringObj(pattern, TCL_NOSIZE)) != TCL_OK)) {
	    goto error;
	}
	goto done;
    }

    for (hPtr = Tcl_FirstHashEntry(hTblPtr, &hSearch); hPtr != NULL;
	    hPtr = Tcl_NextHashEntry(&hSearch)) {

	     */

	    name = statePtr->channelName;
	}

	if (((pattern == NULL) || Tcl_StringMatch(name, pattern)) &&
		(Tcl_ListObjAppendElement(interp, resultPtr,
			Tcl_NewStringObj(name, TCL_NOSIZE)) != TCL_OK)) {
	error:
	    TclDecrRefCount(resultPtr);
	    return TCL_ERROR;
	}
    }

  done:

 */

typedef struct CopyState {
    struct Channel *readPtr;	/* Pointer to input channel. */
    struct Channel *writePtr;	/* Pointer to output channel. */
    int readFlags;		/* Original read channel flags. */
    int writeFlags;		/* Original write channel flags. */
    TCL_SIZE_T toRead;		/* Number of bytes to copy, or TCL_NOSIZE. */
    TCL_SIZE_T total;		/* Total bytes transferred (written). */
    Tcl_Interp *interp;		/* Interp that started the copy. */
    Tcl_Obj *cmdPtr;		/* Command to be invoked at completion. */
    TCL_SIZE_T bufSize;		/* Size of appended buffer. */
    char buffer[1];		/* Copy buffer, this must be the last
				 * field. */
} CopyState;

/*
 * struct ChannelBuffer:
 *

	if (Tcl_GetIndexFromObj(interp, objv[3], originOptions, "origin", 0,
		&optionIndex) != TCL_OK) {
	    return TCL_ERROR;
	}
	mode = modeArray[optionIndex];
    }

    result = Tcl_SeekOld(chan, offset, mode);
    if (result == Tcl_LongAsWide(-1)) {
	/*
	 * TIP #219.
	 * Capture error messages put by the driver into the bypass area and
	 * put them into the regular interpreter result. Fall back to the
	 * regular message if nothing was found in the bypass.
	 */

     * channel table of this interpreter.
     */

    if (TclGetChannelFromObj(interp, objv[1], &chan, NULL, 0) != TCL_OK) {
	return TCL_ERROR;
    }

    newLoc = Tcl_TellOld(chan);

    /*
     * TIP #219.
     * Capture error messages put by the driver into the bypass area and put
     * them into the regular interpreter result.
     */

	    return TCL_ERROR;
	}
	return TCL_OK;
    }

    resultPtr = Tcl_NewObj();
    if (Tcl_GetChannelHandle(chan, TCL_READABLE, NULL) == TCL_OK) {
	if (Tcl_ReadChars(chan, resultPtr, TCL_NOSIZE, 0) < 0) {
	    /*
	     * TIP #219.
	     * Capture error messages put by the driver into the bypass area
	     * and put them into the regular interpreter result. Fall back to
	     * the regular message if nothing was found in the bypass.
	     */

	    if ((permString[scanned] == '0')
		    && (permString[scanned+1] >= '0')
		    && (permString[scanned+1] <= '7')) {
		Tcl_Obj *permObj;

		TclNewLiteralStringObj(permObj, "0o");
		Tcl_AppendToObj(permObj, permString+scanned+1, TCL_NOSIZE);
		code = TclGetIntFromObj(NULL, permObj, &prot);
		Tcl_DecrRefCount(permObj);
	    }

	    if ((code == TCL_ERROR)
		    && TclGetIntFromObj(interp, objv[3], &prot) != TCL_OK) {
		return TCL_ERROR;

	}
	ckfree(cmdArgv);
    }
    if (chan == NULL) {
	return TCL_ERROR;
    }
    Tcl_RegisterChannel(interp, chan);
    Tcl_SetObjResult(interp, Tcl_NewStringObj(Tcl_GetChannelName(chan), TCL_NOSIZE));
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * TcpAcceptCallbacksDeleteProc --

		TCL_EXACT, &optionIndex) != TCL_OK) {
	    return TCL_ERROR;
	}
	switch ((enum socketOptions) optionIndex) {
	case SKT_ASYNC:
	    if (server == 1) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"cannot set -async option for server sockets", TCL_NOSIZE));
		return TCL_ERROR;
	    }
	    async = 1;
	    break;
	case SKT_MYADDR:
	    a++;
	    if (a >= objc) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"no argument given for -myaddr option", TCL_NOSIZE));
		return TCL_ERROR;
	    }
	    myaddr = TclGetString(objv[a]);
	    break;
	case SKT_MYPORT: {
	    const char *myPortName;

	    a++;
	    if (a >= objc) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"no argument given for -myport option", TCL_NOSIZE));
		return TCL_ERROR;
	    }
	    myPortName = TclGetString(objv[a]);
	    if (TclSockGetPort(interp, myPortName, "tcp", &myport) != TCL_OK) {
		return TCL_ERROR;
	    }
	    break;
	}
	case SKT_SERVER:
	    if (async == 1) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"cannot set -async option for server sockets", TCL_NOSIZE));
		return TCL_ERROR;
	    }
	    server = 1;
	    a++;
	    if (a >= objc) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"no argument given for -server option", TCL_NOSIZE));
		return TCL_ERROR;
	    }
	    script = TclGetString(objv[a]);
	    break;
	default:
	    Tcl_Panic("Tcl_SocketObjCmd: bad option index to SocketOptions");
	}
    }
    if (server) {
	host = myaddr;		/* NULL implies INADDR_ANY */
	if (myport != 0) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "option -myport is not valid for servers", TCL_NOSIZE));
	    return TCL_ERROR;
	}
    } else if (a < objc) {
	host = TclGetString(objv[a]);
	a++;
    } else {
	Interp *iPtr;

	chan = Tcl_OpenTcpClient(interp, port, host, myaddr, myport, async);
	if (chan == NULL) {
	    return TCL_ERROR;
	}
    }

    Tcl_RegisterChannel(interp, chan);
    Tcl_SetObjResult(interp, Tcl_NewStringObj(Tcl_GetChannelName(chan), TCL_NOSIZE));
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_FcopyObjCmd --

	    break;
	case FcopyCommand:
	    cmdPtr = objv[i+1];
	    break;
	}
    }

    return TclCopyChannelOld(interp, inChan, outChan, toRead, cmdPtr);
}

/*
 *---------------------------------------------------------------------------
 *
 * ChanPendingObjCmd --
 *

	 */

	if (Tcl_GetWideIntFromObj(interp, objv[2], &length) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (length < 0) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "cannot truncate to negative length of file", TCL_NOSIZE));
	    return TCL_ERROR;
	}
    } else {
	/*
	 * User wants to truncate to the current file position.
	 */

	length = Tcl_TellOld(chan);
	if (length == Tcl_WideAsLong(-1)) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "could not determine current location in \"%s\": %s",
		    TclGetString(objv[1]), Tcl_PosixError(interp)));
	    return TCL_ERROR;
	}
    }

    }

    channelNames[0] = Tcl_GetChannelName(rchan);
    channelNames[1] = Tcl_GetChannelName(wchan);

    resultPtr = Tcl_NewObj();
    Tcl_ListObjAppendElement(NULL, resultPtr,
	    Tcl_NewStringObj(channelNames[0], TCL_NOSIZE));
    Tcl_ListObjAppendElement(NULL, resultPtr,
	    Tcl_NewStringObj(channelNames[1], TCL_NOSIZE));
    Tcl_SetObjResult(interp, resultPtr);

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

    ensemble = TclMakeEnsemble(interp, "chan", initMap);
    Tcl_GetEnsembleMappingDict(NULL, ensemble, &mapObj);
    for (i=0 ; extras[i] ; i+=2) {
	/*
	 * Can assume that reference counts are all incremented.
	 */

	Tcl_DictObjPut(NULL, mapObj, Tcl_NewStringObj(extras[i], TCL_NOSIZE),
		Tcl_NewStringObj(extras[i+1], TCL_NOSIZE));
    }
    Tcl_SetEnsembleMappingDict(interp, ensemble, mapObj);
    return ensemble;
}

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

    if (preserve == P_PRESERVE) {
	state = Tcl_SaveInterpState(dataPtr->interp, res);
    }

    Tcl_IncrRefCount(command);
    res = Tcl_ListObjAppendElement(dataPtr->interp, command,
	    Tcl_NewStringObj((char *) op, TCL_NOSIZE));
    if (res != TCL_OK) {
	goto cleanup;
    }

    /*
     * Use a byte-array to prevent the misinterpretation of binary data coming
     * through as UTF while at the tcl level.

#define FreeReceivedError(p) \
	if ((p)->base.mustFree) {                               \
	    ckfree((p)->base.msgStr);                           \
	}
#define PassReceivedErrorInterp(i,p) \
	if ((i) != NULL) {                                      \
	    Tcl_SetChannelErrorInterp((i),                      \
		    Tcl_NewStringObj((p)->base.msgStr, TCL_NOSIZE));    \
	}                                                       \
	FreeReceivedError(p)
#define PassReceivedError(c,p) \
	Tcl_SetChannelError((c), Tcl_NewStringObj((p)->base.msgStr, TCL_NOSIZE)); \
	FreeReceivedError(p)
#define ForwardSetStaticError(p,emsg) \
	(p)->base.code = TCL_ERROR;                             \
	(p)->base.mustFree = 0;                                 \
	(p)->base.msgStr = (char *) (emsg)
#define ForwardSetDynamicError(p,emsg) \
	(p)->base.code = TCL_ERROR;                             \
	(p)->base.mustFree = 1;                                 \
	(p)->base.msgStr = (char *) (emsg)

static void		ForwardSetObjError(ForwardParam *p, Tcl_Obj *objPtr);

static ReflectedChannelMap *	GetThreadReflectedChannelMap(void);
static void		DeleteThreadReflectedChannelMap(ClientData clientData);

#endif /* TCL_THREADS */

#define SetChannelErrorStr(c,msgStr) \
	Tcl_SetChannelError((c), Tcl_NewStringObj((msgStr), TCL_NOSIZE))

static Tcl_Obj *	MarshallError(Tcl_Interp *interp);
static void		UnmarshallErrorResult(Tcl_Interp *interp,
			    Tcl_Obj *msgObj);

/*
 * Static functions for this file:

    methods = 0;
    while (listc > 0) {
	if (Tcl_GetIndexFromObj(interp, listv[listc-1], methodNames,
		"method", TCL_EXACT, &methIndex) != TCL_OK) {
	    TclNewLiteralStringObj(err, "chan handler \"");
	    Tcl_AppendObjToObj(err, cmdObj);
	    Tcl_AppendToObj(err, " initialize\" returned ", TCL_NOSIZE);
	    Tcl_AppendObjToObj(err, Tcl_GetObjResult(interp));
	    Tcl_SetObjResult(interp, err);
	    Tcl_DecrRefCount(resObj);
	    goto error;
	}

	methods |= FLAG(methIndex);

#endif

    /*
     * Return handle as result of command.
     */

    Tcl_SetObjResult(interp,
            Tcl_NewStringObj(chanPtr->state->channelName, TCL_NOSIZE));
    return TCL_OK;

  error:
    /*
     * Signal to ReflectClose to not call 'finalize'.
     */

    /* ASSERT: rcPtr->method & FLAG(METH_SEEK) */

    Tcl_Preserve(rcPtr);

    offObj  = Tcl_NewWideIntObj(offset);
    baseObj = Tcl_NewStringObj(
            (seekMode == SEEK_SET) ? "start" :
            (seekMode == SEEK_CUR) ? "current" : "end", TCL_NOSIZE);
    Tcl_IncrRefCount(offObj);
    Tcl_IncrRefCount(baseObj);

    if (InvokeTclMethod(rcPtr, "seek", offObj, baseObj, &resObj) != TCL_OK) {
	Tcl_SetChannelError(rcPtr->chan, resObj);
        goto invalid;
    }

	p.setOpt.name = optionName;
	p.setOpt.value = newValue;

	ForwardOpToHandlerThread(rcPtr, ForwardedSetOpt, &p);

	if (p.base.code != TCL_OK) {
	    Tcl_Obj *err = Tcl_NewStringObj(p.base.msgStr, TCL_NOSIZE);

	    UnmarshallErrorResult(interp, err);
	    Tcl_DecrRefCount(err);
	    FreeReceivedError(&p);
	}

	return p.base.code;
    }
#endif
    Tcl_Preserve(rcPtr);

    optionObj = Tcl_NewStringObj(optionName, TCL_NOSIZE);
    valueObj = Tcl_NewStringObj(newValue, TCL_NOSIZE);

    Tcl_IncrRefCount(optionObj);
    Tcl_IncrRefCount(valueObj);

    result = InvokeTclMethod(rcPtr, "configure",optionObj,valueObj, &resObj);
    if (result != TCL_OK) {
	UnmarshallErrorResult(interp, resObj);

	} else {
	    opcode = ForwardedGetOpt;
	}

	ForwardOpToHandlerThread(rcPtr, opcode, &p);

	if (p.base.code != TCL_OK) {
	    Tcl_Obj *err = Tcl_NewStringObj(p.base.msgStr, TCL_NOSIZE);

	    UnmarshallErrorResult(interp, err);
	    Tcl_DecrRefCount(err);
	    FreeReceivedError(&p);
	}

	return p.base.code;

	optionObj = NULL;
    } else {
	/*
	 * Retrieve the value of one option.
	 */

	method = "cget";
	optionObj = Tcl_NewStringObj(optionName, TCL_NOSIZE);
        Tcl_IncrRefCount(optionObj);
    }

    Tcl_Preserve(rcPtr);

    if (InvokeTclMethod(rcPtr, method, optionObj, NULL, &resObj)!=TCL_OK) {
	UnmarshallErrorResult(interp, resObj);

	eventStr = "write";
	break;
    default:
	eventStr = "";
	break;
    }

    evObj = Tcl_NewStringObj(eventStr, TCL_NOSIZE);
    Tcl_IncrRefCount(evObj);
    /* assert evObj.refCount == 1 */
    return evObj;
}

/*
 *----------------------------------------------------------------------

    if (rcPtr->dead) {
	/*
	 * The channel is marked as dead. Bail out immediately, with an
	 * appropriate error.
	 */

	if (resultObjPtr != NULL) {
	    resObj = Tcl_NewStringObj(msg_dstlost, TCL_NOSIZE);
	    *resultObjPtr = resObj;
	    Tcl_IncrRefCount(resObj);
	}

        /*
         * Not touching argOneObj, argTwoObj, they have not been used.
         * See the contract as well.

     */

    /*
     * Insert method into the pre-allocated area, after the command prefix,
     * before the channel id.
     */

    methObj = Tcl_NewStringObj(method, TCL_NOSIZE);
    Tcl_IncrRefCount(methObj);
    rcPtr->argv[rcPtr->argc - 2] = methObj;

    /*
     * Append the additional argument containing method specific details
     * behind the channel id. If specified.
     *

	break;
    }

    case ForwardedSeek: {
	Tcl_Obj *offObj = Tcl_NewWideIntObj(paramPtr->seek.offset);
	Tcl_Obj *baseObj = Tcl_NewStringObj(
                (paramPtr->seek.seekMode==SEEK_SET) ? "start" :
                (paramPtr->seek.seekMode==SEEK_CUR) ? "current" : "end", TCL_NOSIZE);

        Tcl_IncrRefCount(offObj);
        Tcl_IncrRefCount(baseObj);

        Tcl_Preserve(rcPtr);
	if (InvokeTclMethod(rcPtr, "seek", offObj, baseObj, &resObj)!=TCL_OK){
	    ForwardSetObjError(paramPtr, resObj);

	}
        Tcl_Release(rcPtr);
        Tcl_DecrRefCount(blockObj);
	break;
    }

    case ForwardedSetOpt: {
	Tcl_Obj *optionObj = Tcl_NewStringObj(paramPtr->setOpt.name, TCL_NOSIZE);
	Tcl_Obj *valueObj  = Tcl_NewStringObj(paramPtr->setOpt.value, TCL_NOSIZE);

        Tcl_IncrRefCount(optionObj);
        Tcl_IncrRefCount(valueObj);
        Tcl_Preserve(rcPtr);
	if (InvokeTclMethod(rcPtr, "configure", optionObj, valueObj,
                &resObj) != TCL_OK) {
	    ForwardSetObjError(paramPtr, resObj);
	}
        Tcl_Release(rcPtr);
        Tcl_DecrRefCount(optionObj);
        Tcl_DecrRefCount(valueObj);
	break;
    }

    case ForwardedGetOpt: {
	/*
	 * Retrieve the value of one option.
	 */

	Tcl_Obj *optionObj = Tcl_NewStringObj(paramPtr->getOpt.name, TCL_NOSIZE);

        Tcl_IncrRefCount(optionObj);
        Tcl_Preserve(rcPtr);
	if (InvokeTclMethod(rcPtr, "cget", optionObj, NULL, &resObj)!=TCL_OK){
	    ForwardSetObjError(paramPtr, resObj);
	} else {
	    TclDStringAppendObj(paramPtr->getOpt.value, resObj);

		ckfree((p)->base.msgStr);				\
	    }								\
	} while (0)
#define PassReceivedErrorInterp(i,p) \
	do {								\
	    if ((i) != NULL) {						\
		Tcl_SetChannelErrorInterp((i),				\
			Tcl_NewStringObj((p)->base.msgStr, TCL_NOSIZE));	\
	    }								\
	    FreeReceivedError(p);					\
	} while (0)
#define PassReceivedError(c,p) \
	do {								\
	    Tcl_SetChannelError((c),					\
		    Tcl_NewStringObj((p)->base.msgStr, TCL_NOSIZE));		\
	    FreeReceivedError(p);					\
	} while (0)
#define ForwardSetStaticError(p,emsg) \
	do {								\
	    (p)->base.code = TCL_ERROR;					\
	    (p)->base.mustFree = 0;					\
	    (p)->base.msgStr = (char *) (emsg);				\

			    Tcl_Obj *objPtr);
static ReflectedTransformMap *	GetThreadReflectedTransformMap(void);
static void		DeleteThreadReflectedTransformMap(
			    ClientData clientData);
#endif /* TCL_THREADS */

#define SetChannelErrorStr(c,msgStr) \
	Tcl_SetChannelError((c), Tcl_NewStringObj((msgStr), TCL_NOSIZE))

static Tcl_Obj *	MarshallError(Tcl_Interp *interp);
static void		UnmarshallErrorResult(Tcl_Interp *interp,
			    Tcl_Obj *msgObj);

/*
 * Static functions for this file:

#endif /* TCL_THREADS */

    /*
     * Return the channel as the result of the command.
     */

    Tcl_SetObjResult(interp, Tcl_NewStringObj(
	    Tcl_GetChannelName(rtPtr->chan), TCL_NOSIZE));
    return TCL_OK;

  error:
    /*
     * We are not going through ReflectClose as we never had a channel
     * structure.
     */

	eventStr = "write";
	break;
    default:
	eventStr = "";
	break;
    }

    evObj = Tcl_NewStringObj(eventStr, TCL_NOSIZE);
    Tcl_IncrRefCount(evObj);
    return evObj;
}

/*
 *----------------------------------------------------------------------
 *

    if (rtPtr->dead) {
	/*
	 * The transform is marked as dead. Bail out immediately, with an
	 * appropriate error.
	 */

	if (resultObjPtr != NULL) {
	    resObj = Tcl_NewStringObj(msg_dstlost, TCL_NOSIZE);
	    *resultObjPtr = resObj;
	    Tcl_IncrRefCount(resObj);
	}
	return TCL_ERROR;
    }

    /*
     * NOTE (5): Decide impl. issue: Cache objects with method names?
     * Requires TSD data as reflections can be created in many different
     * threads.
     * NO: Caching of command resolutions means storage per channel.
     */

    /*
     * Insert method into the pre-allocated area, after the command prefix,
     * before the channel id.
     */

    methObj = Tcl_NewStringObj(method, TCL_NOSIZE);
    Tcl_IncrRefCount(methObj);
    rtPtr->argv[rtPtr->argc - 2] = methObj;

    /*
     * Append the additional argument containing method specific details
     * behind the channel id. If specified.
     *

    const char *native;

    if (Tcl_GetInt(NULL, string, portPtr) != TCL_OK) {
	/*
	 * Don't bother translating 'proto' to native.
	 */

	native = Tcl_UtfToExternalDString(NULL, string, TCL_NOSIZE, &ds);
	sp = getservbyname(native, proto);		/* INTL: Native. */
	Tcl_DStringFree(&ds);
	if (sp != NULL) {
	    *portPtr = ntohs((unsigned short) sp->s_port);
	    return TCL_OK;
	}
    }
    if (Tcl_GetInt(interp, string, portPtr) != TCL_OK) {
	return TCL_ERROR;
    }
    if (*portPtr > 0xFFFF) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"couldn't open socket: port number too high", TCL_NOSIZE));
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------

    struct addrinfo *v6head = NULL, *v6ptr = NULL;
    char *native = NULL, portbuf[TCL_INTEGER_SPACE], *portstring;
    const char *family = NULL;
    Tcl_DString ds;
    int result, i;

    if (host != NULL) {
	native = Tcl_UtfToExternalDString(NULL, host, TCL_NOSIZE, &ds);
    }

    /*
     * Workaround for OSX's apparent inability to resolve "localhost", "0"
     * when the loopback device is the only available network interface.
     */
    if (host != NULL && port == 0) {

int
Tcl_Stat(
    const char *path,		/* Path of file to stat (in current CP). */
    struct stat *oldStyleBuf)	/* Filled with results of stat call. */
{
    int ret;
    Tcl_StatBuf buf;
    Tcl_Obj *pathPtr = Tcl_NewStringObj(path, TCL_NOSIZE);

    Tcl_IncrRefCount(pathPtr);
    ret = Tcl_FSStat(pathPtr, &buf);
    Tcl_DecrRefCount(pathPtr);
    if (ret != -1) {
#ifndef TCL_WIDE_INT_IS_LONG
	Tcl_WideInt tmp1, tmp2, tmp3 = 0;

/* Obsolete */
int
Tcl_Access(
    const char *path,		/* Path of file to access (in current CP). */
    int mode)			/* Permission setting. */
{
    int ret;
    Tcl_Obj *pathPtr = Tcl_NewStringObj(path, TCL_NOSIZE);

    Tcl_IncrRefCount(pathPtr);
    ret = Tcl_FSAccess(pathPtr,mode);
    Tcl_DecrRefCount(pathPtr);

    return ret;
}

/* Obsolete */
Tcl_Channel
Tcl_OpenFileChannel(
    Tcl_Interp *interp,		/* Interpreter for error reporting; can be
				 * NULL. */
    const char *path,		/* Name of file to open. */
    const char *modeString,	/* A list of POSIX open modes or a string such
				 * as "rw". */
    int permissions)		/* If the open involves creating a file, with
				 * what modes to create it? */
{
    Tcl_Channel ret;
    Tcl_Obj *pathPtr = Tcl_NewStringObj(path, TCL_NOSIZE);

    Tcl_IncrRefCount(pathPtr);
    ret = Tcl_FSOpenFileChannel(interp, pathPtr, modeString, permissions);
    Tcl_DecrRefCount(pathPtr);

    return ret;
}

/* Obsolete */
int
Tcl_Chdir(
    const char *dirName)
{
    int ret;
    Tcl_Obj *pathPtr = Tcl_NewStringObj(dirName, TCL_NOSIZE);
    Tcl_IncrRefCount(pathPtr);
    ret = Tcl_FSChdir(pathPtr);
    Tcl_DecrRefCount(pathPtr);
    return ret;
}

/* Obsolete */

int
Tcl_EvalFile(
    Tcl_Interp *interp,		/* Interpreter in which to process file. */
    const char *fileName)	/* Name of file to process. Tilde-substitution
				 * will be performed on this name. */
{
    int ret;
    Tcl_Obj *pathPtr = Tcl_NewStringObj(fileName, TCL_NOSIZE);

    Tcl_IncrRefCount(pathPtr);
    ret = Tcl_FSEvalFile(interp, pathPtr);
    Tcl_DecrRefCount(pathPtr);
    return ret;
}


     */

    cwd = Tcl_FSGetCwd(NULL);
    if (cwd == NULL) {
	if (interp != NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "glob couldn't determine the current working directory",
		    TCL_NOSIZE));
	}
	return TCL_ERROR;
    }

    fsPtr = Tcl_FSGetFileSystemForPath(cwd);
    if (fsPtr != NULL && fsPtr->matchInDirectoryProc != NULL) {
	TclNewObj(tmpResultPtr);

    ckfree(modeArgv);

    if (!gotRW) {
	if (interp != NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "access mode must include either RDONLY, WRONLY, or RDWR",
		    TCL_NOSIZE));
	}
	return -1;
    }
    return mode;
}

/*

    string = Tcl_GetString(objPtr);

    /*
     * If first character is not a BOM, append the remaining characters,
     * otherwise replace them. [Bug 3466099]
     */

    if (Tcl_ReadChars(chan, objPtr, TCL_NOSIZE,
	    memcmp(string, "\xef\xbb\xbf", 3)) < 0) {
	Tcl_Close(interp, chan);
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"couldn't read file \"%s\": %s",
		Tcl_GetString(pathPtr), Tcl_PosixError(interp)));
	goto end;
    }

    string = Tcl_GetString(objPtr);

    /*
     * If first character is not a BOM, append the remaining characters,
     * otherwise replace them. [Bug 3466099]
     */

    if (Tcl_ReadChars(chan, objPtr, TCL_NOSIZE,
	    memcmp(string, "\xef\xbb\xbf", 3)) < 0) {
	Tcl_Close(interp, chan);
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"couldn't read file \"%s\": %s",
		Tcl_GetString(pathPtr), Tcl_PosixError(interp)));
	Tcl_DecrRefCount(objPtr);
	return TCL_ERROR;

	    return NULL;
	}

	/*
	 * Apply appropriate flags parsed out above.
	 */

	if (seekFlag && Tcl_Seek(retVal, 0, SEEK_END)
		< (Tcl_WideInt) 0) {
	    if (interp != NULL) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"could not seek to end of file while opening \"%s\": %s",
			Tcl_GetString(pathPtr), Tcl_PosixError(interp)));
	    }
	    Tcl_Close(NULL, retVal);

    }

    if (attrTable != NULL) {
	/*
	 * It's a constant attribute table, so use T_GIFO.
	 */

	Tcl_Obj *tmpObj = Tcl_NewStringObj(attributeName, TCL_NOSIZE);
	int result;

	result = Tcl_GetIndexFromObj(NULL, tmpObj, attrTable, NULL, TCL_EXACT,
		indexPtr);
	TclDecrRefCount(tmpObj);
	if (listObj != NULL) {
	    TclDecrRefCount(listObj);

	 * and we must avoid a possible infinite loop. Try to delete the file
	 * we probably created, and then exit.
	 */

	Tcl_FSDeleteFile(copyToPtr);
	Tcl_DecrRefCount(copyToPtr);
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"couldn't load from current filesystem", TCL_NOSIZE));
	return TCL_ERROR;
    }

    if (TclCrossFilesystemCopy(interp, pathPtr, copyToPtr) != TCL_OK) {
	/*
	 * Cross-platform copy failed.
	 */

    Tcl_Interp *interp,		/* Tcl interpreter */
    Tcl_LoadHandle handle)	/* Handle of the file to unload */
{
    if (handle->unloadFileProcPtr == NULL) {
	if (interp != NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "cannot unload: filesystem does not support unloading",
		    TCL_NOSIZE));
	}
	return TCL_ERROR;
    }
    TclpUnloadFile(handle);
    return TCL_OK;
}


    }

    /*
     * Copy it synchronously. We might wish to add an asynchronous option to
     * support vfs's which are slow (e.g. network sockets).
     */

    if (TclCopyChannel(interp, in, out, TCL_NOSIZE, NULL) == TCL_OK) {
	result = TCL_OK;
    }

    /*
     * If the copy failed, assume that copy channel left a good error message.
     */

    if (fsPtr == NULL) {
	return NULL;
    }

    resPtr = Tcl_NewListObj(0, NULL);
    Tcl_ListObjAppendElement(NULL, resPtr,
	    Tcl_NewStringObj(fsPtr->typeName, TCL_NOSIZE));

    if (fsPtr->filesystemPathTypeProc != NULL) {
	Tcl_Obj *typePtr = fsPtr->filesystemPathTypeProc(pathPtr);

	if (typePtr != NULL) {
	    Tcl_ListObjAppendElement(NULL, resPtr, typePtr);
	}

SetIndexFromAny(
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    register Tcl_Obj *objPtr)	/* The object to convert. */
{
    if (interp) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
	    "can't convert value to index except via Tcl_GetIndexFromObj API",
	    TCL_NOSIZE));
    }
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *