if (objPtr == NULL && interp) {
	description = "invalid arithmetic series parameter values";
	goto domain;
    }
    return objPtr;

  exceeded:
    Tcl_SetObjResult(interp, Tcl_NewStringObj(
	    "max length of a Tcl list exceeded", TCL_AUTO_LENGTH));
    Tcl_SetErrorCode(interp, "TCL", "MEMORY", (char *)NULL);
    return NULL;

  domain:
    Tcl_SetObjResult(interp, Tcl_NewStringObj(description, TCL_AUTO_LENGTH));
    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN", description, (char *)NULL);
    return NULL;

  notANumber:
    description = "non-numeric floating-point value";
    Tcl_PrintDouble(NULL, isnan(dstart) ? dstart : dend, tmp);
    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "cannot use %s \"%s\" to estimate length of arith-series",
	    description, tmp));
    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN", description, (char *)NULL);
    return NULL;
}

/*
 *----------------------------------------------------------------------
 *

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

		Tcl_Size i;

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

    codePtr = CompileAssembleObj(interp, objv[1]);

    /*
     * On failure, report error line.
     */

    if (codePtr == NULL) {
	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
		"\n    (\"%s\" body, line %d)",
		Tcl_GetString(objv[0]), Tcl_GetErrorLine(interp)));
	return TCL_ERROR;
    }

    /*
     * Use NRE to evaluate the bytecode from the trampoline.
     */

    /*
     * Compile the code and convert any error from the compilation into
     * bytecode reporting the error;
     */

    if (TCL_ERROR == TclAssembleCode(envPtr, tokenPtr[1].start,
	    tokenPtr[1].size, TCL_EVAL_DIRECT)) {
	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
		"\n    (\"%.*s\" body, line %d)",
		(int)parsePtr->tokenPtr->size, parsePtr->tokenPtr->start,
		Tcl_GetErrorLine(interp)));
	envPtr->numCommands = numCommands;
	envPtr->codeNext = envPtr->codeStart + offset;
	envPtr->currStackDepth = depth;
	envPtr->exceptArrayNext = numExnRanges;
	while (envPtr->auxDataArrayNext > numAuxRanges) {
	    Tcl_Size auxIdx = --envPtr->auxDataArrayNext;
	    AuxData *auxDataPtr = &envPtr->auxDataArrayPtr[auxIdx];

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

    case ASSEM_CONCAT1:

	if (GetNextOperand(assemEnvPtr, &tokenPtr, &operand1Obj) != TCL_OK) {
	    goto cleanup;
	}
	if (TclListObjGetElements(interp, operand1Obj, &jtObjc, &jtObjv) != TCL_OK) {
	    goto cleanup;
	}
	if (jtObjc % 2 != 0) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "jump table must have an even number of list elements",
		    TCL_AUTO_LENGTH));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADJUMPTABLE", (char *)NULL);
	    goto cleanup;
	}

	if (TalInstructionTable[tblIdx].tclInstCode == INST_JUMP_TABLE) {
	    JumptableInfo* jtPtr = AllocJumptable();

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

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

    DEBUG_PRINT("jump table {\n");
    for (i = 0; i < objc; i+=2) {
	DEBUG_PRINT("  %s -> %s\n", TclGetString(objv[i]),
		TclGetString(objv[i+1]));
	if (Tcl_GetWideIntFromObj(NULL, objv[i], &key) != TCL_OK) {
	    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"jump table must have 64-bit integer keys",
			TCL_AUTO_LENGTH));
		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADJUMPTABLEENTRY", (char *)NULL);
	    }
	    goto error;
	}
	hPtr = Tcl_CreateHashEntry(&jtnPtr->hashTable, INT2PTR(key), &isNew);
	if (!isNew) {
	    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"duplicate entry in jump table for \"%s\"",
			TclGetString(objv[i])));
		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "DUPJUMPTABLEENTRY", (char *)NULL);
	    }
	    goto error;
	}
	Tcl_SetHashValue(hPtr, objv[i+1]);
	Tcl_IncrRefCount(objv[i+1]);
    }

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

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

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

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

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

static int
CheckOneByte(
    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
    Tcl_Size value)		/* Value to check */
{
    if (value < 0 || value > 0xFF) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"operand does not fit in one byte", TCL_AUTO_LENGTH));
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "1BYTE", (char *)NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*

static int
CheckSignedOneByte(
    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
    Tcl_Size value)		/* Value to check */
{
    if (value > 0x7F || value < -0x80) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"operand does not fit in one byte", TCL_AUTO_LENGTH));
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "1BYTE", (char *)NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*

static int
CheckNonNegative(
    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
    Tcl_Size value)		/* Value to check */
{
    if (value < 0 || value > INT_MAX) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"operand must be nonnegative", TCL_AUTO_LENGTH));
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "NONNEGATIVE", (char *)NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*

static int
CheckStrictlyPositive(
    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
    Tcl_Size value)		/* Value to check */
{
    if (value <= 0 || value > INT_MAX) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"operand must be positive", TCL_AUTO_LENGTH));
	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "POSITIVE", (char *)NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*

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

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

    /*

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

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

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

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

	 * among the paths that reach it.
	 */

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

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

	    Tcl_SetErrorLine(interp, blockPtr->startLine);
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACK", (char *)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_AUTO_LENGTH));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACK", (char *)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_AUTO_LENGTH));
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACKINCATCH", (char *)NULL);
	    AddBasicBlockRangeToErrorInfo(assemEnvPtr, blockPtr);
	    Tcl_SetErrorLine(interp, blockPtr->startLine);
	}
	return TCL_ERROR;
    }

	/*
	 * Exit with unbalanced stack.
	 */

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

	/*
	 * Record stack usage.

     * rechecked.
     */

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

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

    if (assemEnvPtr->curr_bb->catchState >= BBCS_INCATCH) {
	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "catch still active on exit from assembly code",
		    TCL_AUTO_LENGTH));
	    Tcl_SetErrorLine(interp,
		    assemEnvPtr->curr_bb->enclosingCatch->startLine);
	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "UNCLOSEDCATCH", (char *)NULL);
	}
	return TCL_ERROR;
    }
    return TCL_OK;

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

    if (bbPtr->successor1 != NULL) {
	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
		"\n    in assembly code between lines %d and %d",
		bbPtr->startLine, bbPtr->successor1->startLine));
	return;
    }
    Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
	    "\n    in assembly code between line %d and end of assembly code",
	    bbPtr->startLine));
}

/*
 *-----------------------------------------------------------------------------
 *
 * DupAssembleCodeInternalRep --
 *

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

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

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

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

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

    cmdPtr = (Command *) cmd;

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

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

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

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

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

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

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

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

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

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

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

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

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

    /*
     * This is the global table.
     */

    nsPtr = cmdPtr->nsPtr;

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

    hPtr = Tcl_CreateHashEntry(&nsPtr->cmdTable, cmdName, &isNew);
    if (!isNew) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"exposed command \"%s\" already exists", cmdName));

	Tcl_SetErrorCode(interp, "TCL", "EXPOSE", "COMMAND_EXISTS", (char *)NULL);
	return TCL_ERROR;
    }

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

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

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

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

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

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

    if ((newNsPtr == NULL) || (newTail == NULL)) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"can't rename to \"%s\": bad command name", newName));

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

	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "RENAME",
		"TARGET_EXISTS", (char *)NULL);
	result = TCL_ERROR;
	goto done;
    }

    /*

    Tcl_ResetResult(interp);

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

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

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

     * probably because of an infinite loop somewhere.
     */

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

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

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

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

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

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

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

		    code = TclListObjLength(interp, objv[objectsUsed],
			    &numElements);
		    if (code == TCL_ERROR) {
			/*
			 * Attempt to expand a non-list.
			 */

			Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
				"\n    (expanding word %" TCL_SIZE_MODIFIER "d)", objectsUsed));

			Tcl_DecrRefCount(objv[objectsUsed]);
			break;
		    }
		    expandRequested = 1;
		    expand[objectsUsed] = 1;

		    additionalObjsCount = (numElements ? numElements : 1);

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

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

				 * TCL_INVOKE_HIDDEN is now supported, and
				 * must be supplied. */
{
    if (interp == NULL) {
	return TCL_ERROR;
    }
    if ((objc < 1) || (objv == NULL)) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"illegal argument vector", TCL_INDEX_NONE));
	return TCL_ERROR;
    }
    if (flags != TCL_INVOKE_HIDDEN) {
	Tcl_Panic("TclObjInvoke: called without just TCL_INVOKE_HIDDEN");
    }
    return Tcl_NRCallObjProc(interp, TclNRInvoke, NULL, objc, objv);
}

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

    /*

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

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

static int
ExprSqrtFunc(

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    /*
     * Look up the coroutine.
     */

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

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

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

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

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

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

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

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

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

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

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

    }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		    break;
		default:
		    goto badwrap;
		}
	    }
	    if (numBytes) {
	    badwrap:
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"invalid wrapchar; will defeat decoding", -1));
		Tcl_SetErrorCode(interp, "TCL", "BINARY",
			"ENCODE", "WRAPCHAR", (char *)NULL);
		return TCL_ERROR;
	    }
	    break;
	}
    }

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

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

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

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

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

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

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

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

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

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

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

{
    Tcl_Obj *value = NULL;

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

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

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

static int
ClockGetjuliandayfromerayearmonthdayObjCmd(

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

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

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

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

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

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

    /*
     * Check options.
     */

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

		goto baseNow;
	    }

	    if (TclHasInternalRep(baseObj, &tclBignumType)) {
		goto baseOverflow;
	    }

	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "bad seconds \"%s\": must be now or integer",
		    TclGetString(baseObj)));
	    i = baseIdx;
	    goto badOption;
	}
	/*
	 * Seconds could be an unsigned number that overflowed. Make sure
	 * that it isn't. Additionally it may be too complex to calculate
	 * julianday etc (forwards/backwards) by too large/small values, thus

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

    return TCL_OK;

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

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

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

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

    }

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

    /* If seconds overflows the day (not valide case, or 24:00), increase days */
    if (yySecondOfDay >= SECONDS_PER_DAY) {

	    goto error;
	}
    }

    return TCL_OK;

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

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

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

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

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

    Tcl_MutexUnlock(&ClockFmtMutex);

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

    return fss;
}

/*

	    return TCL_RETURN;
	}

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

    ret = TCL_OK;
  done:
    return ret;

    /* Error case reporting. */

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

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

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

    int rewind = iPtr->execEnvPtr->rewind;

    /*
     * We disable catch in interpreters where the limit has been exceeded.
     */

    if (rewind || Tcl_LimitExceeded(interp)) {
	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
		"\n    (\"catch\" body line %d)", Tcl_GetErrorLine(interp)));
	return TCL_ERROR;
    }

    if (objc >= 3) {
	if (NULL == Tcl_ObjSetVar2(interp, varNamePtr, NULL,
		Tcl_GetObjResult(interp), TCL_LEAVE_ERR_MSG)) {
	    return TCL_ERROR;

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

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

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

static int
EvalCmdErrMsg(
    TCL_UNUSED(void **),
    Tcl_Interp *interp,
    int result)
{
    if (result == TCL_ERROR) {
	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
		"\n    (\"eval\" body line %d)", Tcl_GetErrorLine(interp)));
    }
    return result;
}

int
Tcl_EvalObjCmd(
    void *clientData,

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

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

	Tcl_WideInt newTime;

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

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

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

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

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

	Tcl_WideInt newTime;

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

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

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

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

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

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

	    break;
	}
	Tcl_SetObjResult(interp, Tcl_NewStringObj(separator, 1));
    } else {
	Tcl_Obj *separatorObj = Tcl_FSPathSeparator(objv[1]);

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

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

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

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

	    }
	}
	break;
    case TCL_BREAK:
	result = TCL_OK;
	goto finish;
    case TCL_ERROR:
	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
		"\n    (\"%s\" body line %d)",
		(statePtr->resultList != NULL ? "lmap" : "foreach"),
		Tcl_GetErrorLine(interp)));
	TCL_FALLTHROUGH();
    default:
	goto done;
    }

    /*
     * Test if there is work still to be done. If so, do the next round of

		TclObjTypeHasProc(statePtr->aCopyList[i],indexProc) != NULL;

	for (v=0 ; v<statePtr->varcList[i] ; v++) {
	    k = statePtr->index[i]++;
	    if (k < statePtr->argcList[i]) {
		if (isAbstractList) {
		    if (TclObjTypeIndex(interp, statePtr->aCopyList[i], k, &valuePtr) != TCL_OK) {
			Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
				"\n    (setting %s loop variable \"%s\")",
				(statePtr->resultList != NULL ? "lmap" : "foreach"),
				TclGetString(statePtr->varvList[i][v])));
			return TCL_ERROR;
		    }
		} else {
		    valuePtr = statePtr->argvList[i][k];
		}
	    } else {
		TclNewObj(valuePtr);	/* Empty string */
	    }

	    varValuePtr = Tcl_ObjSetVar2(interp, statePtr->varvList[i][v],
		    NULL, valuePtr, TCL_LEAVE_ERR_MSG);

	    if (varValuePtr == NULL) {
		Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
			"\n    (setting %s loop variable \"%s\")",
			(statePtr->resultList != NULL ? "lmap" : "foreach"),
			TclGetString(statePtr->varvList[i][v])));
		return TCL_ERROR;
	    }
	}
    }

    return TCL_OK;
}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    }

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

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

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

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

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

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

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

    /*

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

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

	return TCL_OK;
    }

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

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

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

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

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

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

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

	     */

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

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

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

	    /*
	     * Store the extracted indices for processing by sublist

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

		    goto done;
		}
		sortInfo.indexv[j] = encoded;
	    }
	    break;
	}
	default:
	    TCL_UNREACHABLE();
	}
    }

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

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

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

    if (mode == REGEXP) {

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

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

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

    if (allowedArgs & RangeKeywordArg) {
	result = Tcl_GetIndexFromObj(NULL, argPtr, seq_operations,
		"range operation", 0, &opmode);
    }
    if (result == TCL_OK) {
	if (allowedArgs & LastArg) {
	    /* keyword found, but no followed number */
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "missing \"%s\" value.", TclGetString(argPtr)));
	    return ErrArg;
	}
	*keywordIndexPtr = opmode;
	return RangeKeywordArg;
    } else {
	Tcl_Obj *exprValueObj;
	if (!(allowedArgs & NumericArg)) {

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

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

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

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

		if ((result == TCL_OK) && (encoded == (int)TCL_INDEX_NONE)) {
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			    "index \"%s\" out of range",
			    TclGetString(indexv[j])));
		    Tcl_SetErrorCode(interp, "TCL", "VALUE", "INDEX", "OUTOFRANGE", (char *)NULL);
		    result = TCL_ERROR;
		}
		if (result == TCL_ERROR) {
		    Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
			    "\n    (-index option item number %" TCL_Z_MODIFIER "u)", j));
		    sortInfo.resultCode = TCL_ERROR;
		    goto done;
		}
	    }
	    indexPtr = objv[i+1];
	    i++;
	    break;

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

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

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

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

    elmArrSize = length * sizeof(SortElement);
    if (elmArrSize <= MAXCALLOC) {
	elementArray = (SortElement *)Tcl_Alloc(elmArrSize);
    } else {
	elementArray = (SortElement *)malloc(elmArrSize);
    }
    if (!elementArray) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"no enough memory to proccess sort of %" TCL_Z_MODIFIER "u items", length));
	Tcl_SetErrorCode(interp, "TCL", "MEMORY", (char *)NULL);
	sortInfo.resultCode = TCL_ERROR;
	goto done;
    }

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

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

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

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

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

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

    /*
     * Handle the odd about case separately.

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

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

	    result = Tcl_EvalObjv(interp, numArgs, args, 0);
	    for (idx = 0 ; idx <= info.nsubs ; idx++) {
		TclDecrRefCount(args[idx + numParts]);
	    }
	    Tcl_Free(args);
	    if (result != TCL_OK) {
		if (result == TCL_ERROR) {
		    Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
			    "\n    (%s substitution computation script)",
			    options[REGSUB_COMMAND]));
		}
		goto done;
	    }

	    Tcl_AppendObjToObj(resultPtr, Tcl_GetObjResult(interp));
	    Tcl_ResetResult(interp);

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

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

    /*

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

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

    /*

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

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

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

    /*

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

	    return TCL_ERROR;
	}
	flags |= optionFlags[optionIndex];
    }
    if (flags >> 16) {			/* negative options specified */
	if (flags & 0xFFFF) {		/* positive options specified too */
	    if (interp) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "cannot combine positive and negative options", -1));
	    }
	    return TCL_ERROR;
	}
	/* mask default flags using negative options */
	flags = TCL_SUBST_ALL & ~(flags >> 16);
    }
    *flagPtr = flags;

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

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

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

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

  finishedOptions:
    if (objc - i < 2) {
	Tcl_WrongNumArgs(interp, 1, objv,
		"?-option ...? string ?pattern body ...? ?default body?");
	return TCL_ERROR;
    }
    if (indexVarObj != NULL && mode != OPT_REGEXP) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"%s option requires -regexp option", "-indexvar"));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH",
		"MODERESTRICTION", (char *)NULL);
	return TCL_ERROR;
    }
    if (matchVarObj != NULL && mode != OPT_REGEXP) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"%s option requires -regexp option", "-matchvar"));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH",
		"MODERESTRICTION", (char *)NULL);
	return TCL_ERROR;
    }
    if (noCase && mode == OPT_INTEGER) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"-nocase option cannot be used with -integer option"));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH",
		"MODERESTRICTION", (char *)NULL);
	return TCL_ERROR;
    }

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

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

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

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

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

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

    if (mode == OPT_INTEGER) {
	if (Tcl_GetWideIntFromObj(interp, valueObj, &intValue) != TCL_OK) {

     * Generate an error message if necessary.
     */

    if (result == TCL_ERROR) {
	int limit = 50;
	int overflow = (patternLength > limit);

	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
		"\n    (\"%.*s%s\" arm line %d)",
		(int) (overflow ? limit : patternLength), pattern,
		(overflow ? "..." : ""), Tcl_GetErrorLine(interp)));
    }
    TclStackFree(interp, ctxPtr);
    return result;
}

/*
 *----------------------------------------------------------------------

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

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

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

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

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

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

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

static int
TryPostBody(
    void *data[],
    Tcl_Interp *interp,
    int result)
{
    Tcl_Obj *resultObj, *options, *handlersObj, *finallyObj, *cmdObj, **objv;
    int code, objc;
    Tcl_Size i, numHandlers = 0;

    handlersObj = (Tcl_Obj *)data[0];
    finallyObj = (Tcl_Obj *)data[1];
    objv = (Tcl_Obj **)data[2];
    objc = PTR2INT(data[3]);

    cmdObj = objv[0];

    /*
     * Check for limits/rewinding, which override normal trapping behaviour.
     */

    if (((Interp*) interp)->execEnvPtr->rewind || Tcl_LimitExceeded(interp)) {
	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
		"\n    (\"%s\" body line %d)", TclGetString(cmdObj),
		Tcl_GetErrorLine(interp)));
	if (handlersObj != NULL) {
	    Tcl_DecrRefCount(handlersObj);
	}
	return TCL_ERROR;
    }

    /*
     * Basic processing of the outcome of the script, including adding of
     * errorinfo trace.
     */

    if (result == TCL_ERROR) {
	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
		"\n    (\"%s\" body line %d)", TclGetString(cmdObj),
		Tcl_GetErrorLine(interp)));
    }
    resultObj = Tcl_GetObjResult(interp);
    Tcl_IncrRefCount(resultObj);
    options = Tcl_GetReturnOptions(interp, result);
    Tcl_IncrRefCount(options);
    Tcl_ResetResult(interp);

    }

    /*
     * Process the finally clause.
     */

    if (finallyObj != NULL) {
	Tcl_NRAddCallback(interp, TryPostFinal, resultObj, options, cmdObj,
		NULL);
	return TclNREvalObjEx(interp, finallyObj, 0,
		((Interp *) interp)->cmdFramePtr, objc - 1);
    }

    /*
     * Install the correct result/options into the interpreter and clean up

static int
TryPostHandler(
    void *data[],
    Tcl_Interp *interp,
    int result)
{
    Tcl_Obj *resultObj, *cmdObj, *options, *handlerKindObj, **objv;
    Tcl_Obj *finallyObj;
    int finallyIndex;

    objv = (Tcl_Obj **)data[0];
    options = (Tcl_Obj *)data[1];
    handlerKindObj = (Tcl_Obj *)data[2];
    finallyIndex = PTR2INT(data[3]);

    cmdObj = objv[0];
    finallyObj = finallyIndex ? objv[finallyIndex] : 0;

    /*
     * Check for limits/rewinding, which override normal trapping behaviour.
     */

    if (((Interp*) interp)->execEnvPtr->rewind || Tcl_LimitExceeded(interp)) {
	options = During(interp, result, options, Tcl_ObjPrintf(
		"\n    (\"%s ... %s\" handler line %d)",
		TclGetString(cmdObj), TclGetString(handlerKindObj),
		Tcl_GetErrorLine(interp)));
	Tcl_DecrRefCount(options);
	return TCL_ERROR;
    }

    /*
     * The handler result completely substitutes for the result of the body.
     */

    resultObj = Tcl_GetObjResult(interp);
    Tcl_IncrRefCount(resultObj);
    if (result == TCL_ERROR) {
	options = During(interp, result, options, Tcl_ObjPrintf(
		"\n    (\"%s ... %s\" handler line %d)",
		TclGetString(cmdObj), TclGetString(handlerKindObj),
		Tcl_GetErrorLine(interp)));
    } else {
	Tcl_DecrRefCount(options);
	options = Tcl_GetReturnOptions(interp, result);
	Tcl_IncrRefCount(options);
    }

    /*
     * Process the finally clause if it is present.
     */

    if (finallyObj != NULL) {
	Interp *iPtr = (Interp *) interp;

	Tcl_NRAddCallback(interp, TryPostFinal, resultObj, options, cmdObj,
		NULL);

	/* The 'finally' script is always the last argument word. */
	return TclNREvalObjEx(interp, finallyObj, 0, iPtr->cmdFramePtr,
		finallyIndex);
    }

static int
TryPostFinal(
    void *data[],
    Tcl_Interp *interp,
    int result)
{
    Tcl_Obj *resultObj, *options, *cmdObj;

    resultObj = (Tcl_Obj *)data[0];
    options = (Tcl_Obj *)data[1];
    cmdObj = (Tcl_Obj *)data[2];

    /*
     * If the result wasn't OK, we need to adjust the result options.
     */

    if (result != TCL_OK) {
	Tcl_DecrRefCount(resultObj);
	resultObj = NULL;
	if (result == TCL_ERROR) {
	    options = During(interp, result, options, Tcl_ObjPrintf(
		    "\n    (\"%s ... finally\" body line %d)",
		    TclGetString(cmdObj), Tcl_GetErrorLine(interp)));
	} else {
	    Tcl_Obj *origOptions = options;

	    options = Tcl_GetReturnOptions(interp, result);
	    Tcl_IncrRefCount(options);
	    Tcl_DecrRefCount(origOptions);
	}

	}
	const char *s = Tcl_GetString(objv[2]);
	if (!strcmp(s, "replace")) {
	    profile = TCL_ENCODING_PROFILE_REPLACE;
	} else if (!strcmp(s, "strict")) {
	    profile = TCL_ENCODING_PROFILE_STRICT;
	} else {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "Invalid value \"%s\" supplied for option \"-profile\". "
		    "Must be \"strict\" or \"replace\".", s));
	    return TCL_ERROR;
	}
    } else if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "?-profile PROFILE? STRING");
	return TCL_ERROR;
    }

	Tcl_SetObjResult(interp, msg);

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

	numBytes = parsePtr->end - parsePtr->string;
	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
		"\n    (parsing expression \"%.*s%s\")",
		(numBytes < limit) ? (int)numBytes : (int)limit - 3,
		parsePtr->string, (numBytes < limit) ? "" : "..."));
	if (errCode) {
	    Tcl_SetErrorCode(interp, "TCL", "PARSE", "EXPR", errCode,
		    subErrCode, (char *)NULL);
	}
    }

    return TCL_ERROR;

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

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

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

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

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

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

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

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

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

	    return TCL_ERROR;
	}

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

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

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

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

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

	    int isNew;			/* Dummy */

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

	    /*

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

     * Parse arguments.
     */

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

    if (result == TCL_CONTINUE) {
	result = TCL_OK;
    } else if (result != TCL_OK) {
	if (result == TCL_BREAK) {
	    Tcl_ResetResult(interp);
	    result = TCL_OK;
	} else if (result == TCL_ERROR) {
	    Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
		    "\n    (\"dict for\" body line %d)",
		    Tcl_GetErrorLine(interp)));
	}
	goto done;
    }

    /*
     * Get the next mapping from the dictionary.
     */

     * Parse arguments.
     */

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

    if (result == TCL_CONTINUE) {
	result = TCL_OK;
    } else if (result != TCL_OK) {
	if (result == TCL_BREAK) {
	    Tcl_ResetResult(interp);
	    result = TCL_OK;
	} else if (result == TCL_ERROR) {
	    Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
		    "\n    (\"dict map\" body line %d)",
		    Tcl_GetErrorLine(interp)));
	}
	goto done;
    } else {
	keyObj = Tcl_ObjGetVar2(interp, storagePtr->keyVarObj, NULL,
		TCL_LEAVE_ERR_MSG);
	if (keyObj == NULL) {
	    result = TCL_ERROR;

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

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

		Tcl_ResetResult(interp);
		Tcl_DictObjDone(&search);
		TCL_FALLTHROUGH();
	    case TCL_CONTINUE:
		result = TCL_OK;
		break;
	    case TCL_ERROR:
		Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
			"\n    (\"dict filter\" script line %d)",
			Tcl_GetErrorLine(interp)));
		TCL_FALLTHROUGH();
	    default:
		goto abnormalResult;
	    }

	    TclDecrRefCount(keyObj);
	    TclDecrRefCount(valueObj);

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

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

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

	classPtr = TclOOGetClassFromObj(interp, ooWhat);
	if (classPtr == NULL) {
	    return TCL_ERROR;
	}

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

	oPtr = classPtr->thisPtr;
	bodyType = "body of constructor";

	classPtr = TclOOGetClassFromObj(interp, ooWhat);
	if (classPtr == NULL) {
	    return TCL_ERROR;
	}

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

	oPtr = classPtr->thisPtr;
	bodyType = "body of destructor";

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

    methodBody:
	if (hPtr == NULL) {
	unknownMethod:
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "unknown method \"%s\"", TclGetString(ooWhat)));
	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "METHOD",
		    TclGetString(ooWhat), (char *)NULL);
	    return TCL_ERROR;
	}
	procPtr = TclOOGetProcFromMethod((Method *)Tcl_GetHashValue(hPtr));
	if (procPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "body not available for this kind of method", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		    "METHODTYPE", (char *)NULL);
	    return TCL_ERROR;
	}
	bodyType = "body of method";

    compileMethodIfNeeded:

    /*
     * Do the actual disassembly.
     */

    ByteCodeGetInternalRep(codeObjPtr, &tclByteCodeType, codePtr);

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

			? TCL_INDEX_NONE : nBytesProcessed;
	    } else {
		/* Caller wants error message on failure */
		if (result != TCL_OK && interp != NULL) {
		    char buf[TCL_INTEGER_SPACE];
		    snprintf(buf, sizeof(buf), "%" TCL_SIZE_MODIFIER "d",
			    nBytesProcessed);
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			    "unexpected byte sequence starting at index %"
			    TCL_SIZE_MODIFIER "d: '\\x%02X'",
			    nBytesProcessed, UCHAR(srcStart[nBytesProcessed])));
		    Tcl_SetErrorCode(
			    interp, "TCL", "ENCODING", "ILLEGALSEQUENCE", buf,
			    (char *)NULL);
		}
	    }
	    if (result != TCL_OK) {
		errno = (result == TCL_CONVERT_NOSPACE) ? ENOMEM : EILSEQ;

		    Tcl_Size pos = Tcl_NumUtfChars(srcStart, nBytesProcessed);
		    int ucs4;
		    char buf[TCL_INTEGER_SPACE];

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

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

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

    return chan;
}

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

    return encoding;
}


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

	Tcl_SetErrorCode(
		interp, "TCL", "ENCODING", "PROFILEID", (char *)NULL);
    }
    return NULL;
}

/*

 */
static inline void
Utf8procErrorToTclError(
    Tcl_Interp *interp,		// Interpreter to put error description into.
    utf8proc_ssize_t errcode)	// Error code to convert.
{
    const char *errorMsg = utf8proc_errmsg(errcode);
    Tcl_SetObjResult(interp, Tcl_NewStringObj(
	    errorMsg ? errorMsg : "Unicode normalization failed.",
	    TCL_AUTO_LENGTH));
    switch (errcode) {
    case UTF8PROC_ERROR_NOMEM:
	// Memory allocation failure can use the standard Tcl code.
	Tcl_SetErrorCode(interp, "TCL", "MEMORY", NULL);
	break;
    case UTF8PROC_ERROR_OVERFLOW:
	Tcl_SetErrorCode(interp, "TCL", "UNICODE", "OVERFLOW", NULL);

    Tcl_UnicodeNormalizationForm normForm, // TCL_{NFC,NFD,NFKC,NFKC}
    int profile,		// TCL_ENCODING_PROFILE_{STRICT,REPLACE}
    utf8proc_uint8_t **bufPtrPtr) // On success, output length excluding nul.
{
    if (profile != TCL_ENCODING_PROFILE_REPLACE &&
	    profile != TCL_ENCODING_PROFILE_STRICT) {
	if (interp) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "Invalid value %d passed for encoding profile.",
		    profile));
	    Tcl_SetErrorCode(
		    interp, "TCL", "ENCODING", "PROFILEID", (char *)NULL);
	}
	return -1;
    }

    unsigned options = UTF8PROC_STABLE;

	options |= UTF8PROC_COMPOSE | UTF8PROC_COMPAT;
	break;
    case TCL_NFKD:
	options |= UTF8PROC_DECOMPOSE | UTF8PROC_COMPAT;
	break;
    default:
	if (interp) {
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "Invalid value %d passed for normalization form.",
		    normForm));
	    Tcl_SetErrorCode(
		    interp, "TCL", "ENCODING", "NORMFORM", (char *)NULL);
	}
	return -1;
    }

    if (numBytes < 0) {

		break;
	    }
	    *to++ = 0x80;
	    from++;
	}
    }
    if (from < fromEnd) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"Output buffer too small.", -1));
	result = TCL_CONVERT_NOSPACE;
    } else {
	assert(to <= toEnd);
	*to = '\0'; /* NUL terminate the output */
	if (lengthPtr) {
	    *lengthPtr = to-bufPtr;
	}

{
    Namespace *nsPtr = (Namespace *) TclGetCurrentNamespace(interp);
    Tcl_Command token;		/* The ensemble command. */
    enum EnsSubcmds index;

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

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

		const char *cmd;

		if (TclListObjGetElements(interp, listObj, &len,
			&listv) != TCL_OK) {
		    goto mapError;
		}
		if (len < 1) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "ensemble subcommand implementations "
			    "must be non-empty lists", TCL_AUTO_LENGTH));
		    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE",
			    "EMPTY_TARGET", (char *)NULL);
		    goto mapError;
		}
		cmd = TclGetString(listv[0]);
		if (!(cmd[0] == ':' && cmd[1] == ':')) {
		    Tcl_Obj *newList = Tcl_NewListObj(len, listv);

	    }

	    do {
		if (TclListObjLength(interp, listObj, &len) != TCL_OK) {
		    goto finishSearchAndError;
		}
		if (len < 1) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "ensemble subcommand implementations "
			    "must be non-empty lists", TCL_AUTO_LENGTH));
		    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE",
			    "EMPTY_TARGET", (char *)NULL);
		    goto finishSearchAndError;
		}
		if (TclListObjGetElements(interp, listObj, &len,
			&listv) != TCL_OK) {
		    goto finishSearchAndError;

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

    Tcl_Interp *interp,		/* Where to report an error. May be NULL. */
    Tcl_Command token)		/* What to check for ensemble-ness. */
{
    Command *cmdPtr = (Command *) token;

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

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

	 */

	token = TclGetOriginalCommand(token);

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

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

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

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

     * all...
     */

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

     */

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

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

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

    /*
     * Check for a valid return options dictionary.
     */

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

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

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

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

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

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

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

	result = TCL_ERROR;
	goto done;
    }

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

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

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

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

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

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

	void *yieldParameter;

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

    case INST_YIELD_TO_INVOKE:
	corPtr = iPtr->execEnvPtr->corPtr;
	valuePtr = OBJ_AT_TOS;
	TRACE(("[%.30s] => ", O2S(valuePtr)));
	if (!corPtr) {
	    TRACE_APPEND(("ERROR: yield outside coroutine\n"));
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "yieldto can only be called in a coroutine", -1));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ILLEGAL_YIELD",
		    (char *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}
	if (((Namespace *)TclGetCurrentNamespace(interp))->flags & NS_DYING) {
	    TRACE_APPEND(("ERROR: yield in deleted\n"));
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "yieldto called in deleted namespace", -1));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "YIELDTO_IN_DELETED",
		    (char *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}
	Tcl_Size yieldTargetLength;
	if (TclListObjLength(NULL, valuePtr, &yieldTargetLength) != TCL_OK
		|| yieldTargetLength < 2) {
	    TRACE_APPEND(("ERROR: no valid target list in yieldto"));
	    // Weird case; pretend it's like no arguments given to scripts
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "wrong # args: should be \"yieldto command ?arg ...?\""));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "WRONGARGS", (char *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}

#ifdef TCL_COMPILE_DEBUG

#ifndef REMOVE_DEPRECATED_OPCODES
    doTailcall:
#endif // REMOVE_DEPRECATED_OPCODES
	TRACE(("%u ", (unsigned) numArgs));
	if (!(iPtr->varFramePtr->isProcCallFrame & 1)) {
	    TRACE_APPEND(("=> ERROR: tailcall in non-proc context\n"));
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "tailcall can only be called from a proc or lambda", -1));
	    DECACHE_STACK_INFO();
	    Tcl_SetErrorCode(interp, "TCL", "TAILCALL", "ILLEGAL", (char *)NULL);
	    CACHE_STACK_INFO();
	    goto gotError;
	}
	if (numArgs < 2) {
	    Tcl_Panic("must be at least one command word argument to INST_TAILCALL");

	}
#endif // REMOVE_DEPRECATED_OPCODES
	goto setTailcall;

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

	listPtr = OBJ_AT_TOS;

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

	origCmd = TclGetOriginalCommand(cmd);
	if (origCmd == NULL) {
	    origCmd = cmd;
	}

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

	CallContext *contextPtr;
	Tcl_Size skip, newDepth;

    case INST_TCLOO_SELF:
	contextPtr = GetTclOOCallContext(iPtr);
	if (!contextPtr) {
	    TRACE(("=> ERROR: no TclOO call context\n"));
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "self may only be called from inside a method",
		    -1));
	    DECACHE_STACK_INFO();
	    OO_ERROR(interp, CONTEXT_REQUIRED);
	    CACHE_STACK_INFO();
	    goto gotError;
	}

	/*

	    }
	    return mPtr->type2Ptr->callProc(mPtr->clientData, interp,
		    (Tcl_ObjectContext) contextPtr, numArgs, objv);
	}

    tclooFrameRequired:
	TRACE_APPEND(("ERROR: no TclOO call context\n"));
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"%s may only be called from inside a method",
		TclGetString(objv[0])));
	DECACHE_STACK_INFO();
	OO_ERROR(interp, CONTEXT_REQUIRED);
	CACHE_STACK_INFO();
	goto gotError;
    tclooNoNext:
	TRACE_APPEND(("ERROR: no TclOO next impl\n"));
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"no next %s implementation", TclOOContextTypeName(contextPtr)));
	OO_ERROR(interp, NOTHING_NEXT);
	CACHE_STACK_INFO();
	goto gotError;
    tclooNoTargetClass:
	TRACE_APPEND(("ERROR: \"%.30s\" not on reachable chain\n",
		O2S(valuePtr)));
	// Decide what error message to issue
	for (Tcl_Size i = contextPtr->index ; i >= 0 ; i--) {
	    MInvoke *miPtr = contextPtr->callPtr->chain + i;
	    if (miPtr->isFilter) {
		/* Filters are always at the head of the chain, and we never
		 * want them at this point. */
		break;
	    }
	    if (miPtr->mPtr->declaringClassPtr == clsPtr) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"%s implementation by \"%s\" not reachable from here",
			TclOOContextTypeName(contextPtr),
			TclGetString(valuePtr)));
		OO_ERROR(interp, CLASS_NOT_REACHABLE);
		CACHE_STACK_INFO();
		goto gotError;
	    }
	}
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"%s has no non-filter implementation by \"%s\"",
		TclOOContextTypeName(contextPtr), TclGetString(valuePtr)));
	OO_ERROR(interp, CLASS_NOT_THERE);
	CACHE_STACK_INFO();
	goto gotError;

    case INST_TCLOO_IS_OBJECT:
	TRACE(("\"%.30s\" => ", O2S(OBJ_AT_TOS)));
	DECACHE_STACK_INFO();

		&fromIdx) != TCL_OK) {
	    CACHE_STACK_INFO();
	    TRACE_ERROR(interp);
	    goto gotError;
	}
	if (flags & TCL_LREPLACE_NEED_IN_RANGE) {
	    if (fromIdx < 0 || fromIdx >= length) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"index \"%s\" out of range", Tcl_GetString(fromIdxObj)));
		Tcl_SetErrorCode(interp, "TCL", "VALUE", "INDEX", "OUTOFRANGE",
			(char *)NULL);
		CACHE_STACK_INFO();
		TRACE_ERROR(interp);
		goto gotError;
	    }
	}

		    wResult = (Tcl_WideInt)((Tcl_WideUInt)w1 -
			    (Tcl_WideUInt)w2*(Tcl_WideUInt)wResult);
		    goto wideResultOfArithmetic;
		}

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

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

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

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

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

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

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

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

    outOfMemory:
	Tcl_SetObjResult(interp, Tcl_NewStringObj("cannot allocate", -1));
	DECACHE_STACK_INFO();
	Tcl_SetErrorCode(interp, "TCL", "MEMORY", (char *)NULL);
	CACHE_STACK_INFO();
	goto gotError;

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

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

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

	    invalid = mp_isneg(&big2);
	    mp_clear(&big2);
	    break;
	default:
	    TCL_UNREACHABLE();
	}
	if (invalid) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "negative shift argument", -1));
	    return GENERAL_ARITHMETIC_ERROR;
	}

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

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

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

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

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

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

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

	if (w1 == 2) {

	}

    overflowExpon:

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

	    goto cleanupOnError;
	}
	switch (type) {
	case TCL_NUMBER_DOUBLE:
	    useDoubles = 1;
	    break;
	case TCL_NUMBER_NAN:
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "domain error: argument not in valid range"));
	    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
		    "domain error: argument not in valid range", NULL);
	    goto cleanupOnError;
	}
    }

    if (to) {
	if (ParseArithSeriesArgument(interp, &to, &ptr, &type) != TCL_OK) {
	    goto cleanupOnError;
	}
	switch (type) {
	case TCL_NUMBER_DOUBLE:
	    useDoubles = 1;
	    break;
	case TCL_NUMBER_NAN:
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "cannot use non-numeric floating-point value \"%s\" to "
		    "estimate length of arith-series",
		    TclGetString(to)));
	    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
		    "domain error: argument not in valid range", NULL);
	    goto cleanupOnError;
	}
    }

    if (step) {
	if (ParseArithSeriesArgument(interp, &step, &ptr, &type) != TCL_OK) {
	    goto cleanupOnError;
	}
	switch (type) {
	case TCL_NUMBER_DOUBLE:
	    useDoubles = 1;
	    break;
	case TCL_NUMBER_NAN:
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "domain error: argument not in valid range"));
	    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
		    "domain error: argument not in valid range", NULL);
	    goto cleanupOnError;
	}
    }

    // Convert count to integer if not already

		// Switch to the object holding integer version of the count.
		TclNewIntObj(count, wCount);
		Tcl_IncrRefCount(count);
	    }
	    break;
	}
	case TCL_NUMBER_NAN:
	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		    "expected integer but got \"%s\"",
		    TclGetString(count)));
	    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
		    "domain error: argument not in valid range", NULL);
	    goto cleanupOnError;
	}
    }

    // Parameters comprehended and normalised. Now construct the series.

    if (GetNumberFromObj(NULL, opndPtr, &ptr, &type) != TCL_OK) {
	Tcl_Size length;
	if (TclHasInternalRep(opndPtr, &tclDictType)) {
	    Tcl_DictObjSize(NULL, opndPtr, &length);
	    if (length > 0) {
	    listRep:
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"cannot use a list as %soperand of \"%s\"", ord, op));
		Tcl_SetErrorCode(interp, "ARITH", "DOMAIN", "list", (char *)NULL);
		return;
	    }
	}
	Tcl_ObjTypeLengthProc *lengthProc = TclObjTypeHasProc(opndPtr, lengthProc);
	Tcl_Size objcPtr;
	Tcl_Obj **objvPtr;

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

    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	    "cannot use %s \"%s\" as %soperand of \"%s\"", description,
	    TclGetString(opndPtr), ord, op));
    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN", description, (char *)NULL);
}

/*
 *----------------------------------------------------------------------
 *
 * TclGetSrcInfoForPc, GetSrcInfoForPc, TclGetSourceFromFrame --

     * overwriting the symlink.
     */

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

	}
	Tcl_DecrRefCount(split);
	split = NULL;
    }

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

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

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

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

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

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

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

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

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

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

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

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

	/*

	 */

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

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

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

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

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

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

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

	/*
	 * We own the object now.
	 */

	 * Get one attribute.
	 */

	int index;
	Tcl_Obj *objPtr = NULL;

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

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

	/*
	 * Set option/value pairs.
	 */

	int i, index;

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

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

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

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

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

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

	/*
	 * Read link
	 */

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

    if (CheckFilenameEncodable(interp, objv[1]) != TCL_OK) {
	return TCL_ERROR;
    }

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

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

     * Deal with results.
     */

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

    }

    /*
     * Deal with results.
     */

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

	    /*
	     * Do nothing; This is normal operations in Tcl 9.
	     * Keep accepting as a no-op option to accommodate old scripts.
	     */
	    break;
	case GLOB_DIR:				/* -dir */
	    if (i == (objc-1)) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"missing argument to \"-directory\"", -1));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (char *)NULL);
		return TCL_ERROR;
	    }
	    if (dir != PATH_NONE) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			dir == PATH_DIR
			    ? "\"-directory\" may only be used once"

	    join = 1;
	    break;
	case GLOB_TAILS:				/* -tails */
	    globFlags |= TCL_GLOBMODE_TAILS;
	    break;
	case GLOB_PATH:				/* -path */
	    if (i == (objc-1)) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"missing argument to \"-path\"", -1));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (char *)NULL);
		return TCL_ERROR;
	    }
	    if (dir != PATH_NONE) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			dir == PATH_GENERAL
			    ? "\"-path\" may only be used once"
			    : "\"-path\" cannot be used with \"-dictionary\"",
			-1));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "GLOB",
			"BADOPTIONCOMBINATION", (char *)NULL);
		return TCL_ERROR;
	    }
	    dir = PATH_GENERAL;
	    pathOrDir = objv[i+1];
	    i++;
	    break;
	case GLOB_TYPE:				/* -types */
	    if (i == (objc-1)) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"missing argument to \"-types\"", -1));
		Tcl_SetErrorCode(interp, "TCL", "ARGUMENT", "MISSING", (char *)NULL);
		return TCL_ERROR;
	    }
	    typePtr = objv[i+1];
	    if (TclListObjLength(interp, typePtr, &length) != TCL_OK) {
		return TCL_ERROR;
	    }
	    i++;
	    break;
	case GLOB_LAST:				/* -- */
	    i++;
	    goto endOfForLoop;
	default:
	    TCL_UNREACHABLE();
	}
    }

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

    separators = NULL;
    switch (tclPlatform) {

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

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

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

		/*
		 * Balanced braces.
		 */

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

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

    /*

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    }

    ResetFlag(statePtr, mode);
    return TCL_OK;

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

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

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

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

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

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

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

    if ((flags & (TCL_READABLE | TCL_WRITABLE)) == 0) {
	return TclClose(interp, chan);
    }
    if ((flags & (TCL_READABLE | TCL_WRITABLE)) == (TCL_READABLE | TCL_WRITABLE)) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"double-close of channels not supported by %ss",
		chanPtr->typePtr->typeName));
	return TCL_ERROR;
    }

    /*
     * Does the channel support half-close anyway? Error if not.
     */

    if (!chanPtr->typePtr->close2Proc) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"half-close of channels not supported by %ss",
		chanPtr->typePtr->typeName));
	return TCL_ERROR;
    }

    /*
     * 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", -1));
	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).
     */

    if (!(GotFlag(statePtr, TCL_READABLE|TCL_WRITABLE) & flags)) {
	const char *msg;

	if (flags & TCL_CLOSE_READ) {
	    msg = "read";
	} else {
	    msg = "write";
	}
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"Half-close of %s-side not possible, side not opened or"
		" already closed", msg));
	return TCL_ERROR;
    }

    /*
     * A user may try to call half-close from within a channel close handler.
     * That won't do.
     */

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

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

    /*
     * 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", -1));
	}
	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

	    ResetFlag(statePtr, CHANNEL_UNBUFFERED);
	    SetFlag(statePtr, CHANNEL_LINEBUFFERED);
	} 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", -1));
	    return TCL_ERROR;
	}
	return TCL_OK;
    } else if (HaveOpt(7, "-buffersize")) {
	Tcl_WideInt newBufferSize;
	Tcl_Obj obj;
	int code;

	return TCL_OK;
    } else if (HaveOpt(2, "-encoding")) {
	Tcl_Encoding encoding;
	int profile;

	if ((newValue[0] == '\0') || !strcmp(newValue, "binary")) {
	    if (interp) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"unknown encoding \"%s\": No longer supported.\n"
			"\tplease use either \"-translation binary\" "
			"or \"-encoding iso8859-1\"", newValue));
	    }
	    return TCL_ERROR;
	} else {
	    encoding = Tcl_GetEncoding(interp, newValue);
	    if (encoding == NULL) {
		return TCL_ERROR;
	    }

#endif
		))) {
	    if (GotFlag(statePtr, TCL_READABLE)) {
		statePtr->inEofChar = newValue[0];
	    }
	} else {
	    if (interp) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"bad value for -eofchar: must be non-NUL ASCII"
			" character", TCL_INDEX_NONE));
	    }
	    Tcl_Free((void *)argv);
	    return TCL_ERROR;
	}
	if (argv != NULL) {
	    Tcl_Free((void *)argv);
	}

	    readMode = GotFlag(statePtr, TCL_READABLE) ? argv[0] : NULL;
	    writeMode = GotFlag(statePtr, TCL_WRITABLE) ? argv[0] : NULL;
	} 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", -1));
	    }
	    Tcl_Free((void *)argv);
	    return TCL_ERROR;
	}

	if (readMode) {
	    TclEolTranslation translation;

		translation = TCL_TRANSLATE_CR;
	    } else if (strcmp(readMode, "crlf") == 0) {
		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", -1));
		}
		Tcl_Free((void *)argv);
		return TCL_ERROR;
	    }

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