int
TkStateParseProc(
ClientData clientData, /* some flags.*/
Tcl_Interp *interp, /* Used for reporting errors. */
Tk_Window tkwin, /* Window containing canvas widget. */
const char *value, /* Value of option. */
char *widgRec, /* Pointer to record for item. */
int offset) /* Offset into item. */
{
int c;
int flags = PTR2INT(clientData);
size_t length;
Tcl_Obj *msgObj;
register Tk_State *statePtr = (Tk_State *) (widgRec + offset);
if (value == NULL || *value == 0) {
*statePtr = TK_STATE_NULL;
return TCL_OK;
}
c = value[0];
length = strlen(value);
if ((c == 'n') && (strncmp(value, "normal", length) == 0)) {
*statePtr = TK_STATE_NORMAL;
return TCL_OK;
}
if ((c == 'd') && (strncmp(value, "disabled", length) == 0)) {
*statePtr = TK_STATE_DISABLED;
return TCL_OK;
}
if ((c == 'a') && (flags&1) && (strncmp(value, "active", length) == 0)) {
*statePtr = TK_STATE_ACTIVE;
return TCL_OK;
}
if ((c == 'h') && (flags&2) && (strncmp(value, "hidden", length) == 0)) {
*statePtr = TK_STATE_HIDDEN;
return TCL_OK;
}
msgObj = Tcl_ObjPrintf("bad %s value \"%s\": must be normal",
((flags & 4) ? "-default" : "state"), value);
if (flags & 1) {
Tcl_AppendToObj(msgObj, ", active", -1);
}
if (flags & 2) {
Tcl_AppendToObj(msgObj, ", hidden", -1);
}
if (flags & 3) {
Tcl_AppendToObj(msgObj, ",", -1);
}
Tcl_AppendToObj(msgObj, " or disabled", -1);
Tcl_SetObjResult(interp, msgObj);
Tcl_SetErrorCode(interp, "TK", "VALUE", "STATE", NULL);
*statePtr = TK_STATE_NORMAL;
return TCL_ERROR;
}
int
TclDumpMemoryInfo(ClientData clientData, int flags)
{
char buf[1024];
if (clientData == NULL) { return 0; }
sprintf(buf,
"total mallocs %10d\n"
"total frees %10d\n"
"current packets allocated %10d\n"
"current bytes allocated %10lu\n"
"maximum packets allocated %10d\n"
"maximum bytes allocated %10lu\n",
total_mallocs,
total_frees,
current_malloc_packets,
current_bytes_malloced,
maximum_malloc_packets,
maximum_bytes_malloced);
if (flags == 0) {
fprintf((FILE *)clientData, "%s", buf);
} else {
/* Assume objPtr to append to */
Tcl_AppendToObj((Tcl_Obj *) clientData, buf, -1);
}
return 1;
}
/*
* ------------------------------------------------------------------------
* Itk_ArchOptAccessError()
*
* Simply utility which adds error information after an option
* value access fails. Adds traceback information to the given
* interpreter.
* ------------------------------------------------------------------------
*/
void
Itk_ArchOptAccessError(
Tcl_Interp *interp, /* interpreter handling this object */
ArchInfo *info, /* info associated with mega-widget */
ArchOption *archOpt) /* option that couldn't be accessed */
{
Tcl_ResetResult(interp);
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"internal error: cannot access itk_option(", archOpt->switchName, ")",
(char*)NULL);
if (info->itclObj->accessCmd) {
Tcl_Obj *resultPtr = Tcl_GetObjResult(interp);
Tcl_AppendToObj(resultPtr, " in widget \"", -1);
Tcl_GetCommandFullName(interp, info->itclObj->accessCmd, resultPtr);
Tcl_AppendToObj(resultPtr, "\"", -1);
}
}
/*
* ------------------------------------------------------------------------
* Itk_ArchOptConfigError()
*
* Simply utility which adds error information after a option
* configuration fails. Adds traceback information to the given
* interpreter.
* ------------------------------------------------------------------------
*/
void
Itk_ArchOptConfigError(
Tcl_Interp *interp, /* interpreter handling this object */
ArchInfo *info, /* info associated with mega-widget */
ArchOption *archOpt) /* configuration option that failed */
{
Tcl_Obj *objPtr;
objPtr = Tcl_NewStringObj((char*)NULL, 0);
Tcl_IncrRefCount(objPtr);
Tcl_AppendToObj(objPtr, "\n (while configuring option \"", -1);
Tcl_AppendToObj(objPtr, archOpt->switchName, -1);
Tcl_AppendToObj(objPtr, "\"", -1);
if (info->itclObj && info->itclObj->accessCmd) {
Tcl_AppendToObj(objPtr, " for widget \"", -1);
Tcl_GetCommandFullName(interp, info->itclObj->accessCmd, objPtr);
Tcl_AppendToObj(objPtr, "\")", -1);
}
Tcl_AddErrorInfo(interp, Tcl_GetStringFromObj(objPtr, (int*)NULL));
Tcl_DecrRefCount(objPtr);
}
/*
* ------------------------------------------------------------------------
* Itk_GetArchInfo()
*
* Finds the extra Archetype info associated with the given object.
* Returns TCL_OK and a pointer to the info if found. Returns
* TCL_ERROR along with an error message in interp->result if not.
* ------------------------------------------------------------------------
*/
int
Itk_GetArchInfo(
Tcl_Interp *interp, /* interpreter handling this object */
ItclObject *contextObj, /* object with desired data */
ArchInfo **infoPtr) /* returns: pointer to extra info */
{
Tcl_HashTable *objsWithArchInfo;
Tcl_HashEntry *entry;
/*
* If there is any problem finding the info, return an error.
*/
objsWithArchInfo = ItkGetObjsWithArchInfo(interp);
entry = Tcl_FindHashEntry(objsWithArchInfo, (char*)contextObj);
if (!entry) {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"internal error: no Archetype information for widget",
(char*)NULL);
if (contextObj->accessCmd) {
Tcl_Obj *resultPtr = Tcl_GetObjResult(interp);
Tcl_AppendToObj(resultPtr, " \"", -1);
Tcl_GetCommandFullName(interp, contextObj->accessCmd, resultPtr);
Tcl_AppendToObj(resultPtr, "\"", -1);
}
return TCL_ERROR;
}
/*
* Otherwise, return the requested info.
*/
*infoPtr = (ArchInfo*)Tcl_GetHashValue(entry);
return TCL_OK;
}
static int
CheckIfVarUnset(
Tcl_Interp *interp, /* Interpreter for error reporting. */
int varIndex) /* Index of the test variable to check. */
{
if (varPtr[varIndex] == NULL) {
char buf[32 + TCL_INTEGER_SPACE];
sprintf(buf, "variable %d is unset (NULL)", varIndex);
Tcl_ResetResult(interp);
Tcl_AppendToObj(Tcl_GetObjResult(interp), buf, -1);
return 1;
}
return 0;
}
static void
setBrlapiError (Tcl_Interp *interp) {
const char *text = brlapi_strerror(&brlapi_error);
const char *name;
int number;
switch (brlapi_error.brlerrno) {
case BRLAPI_ERROR_LIBCERR:
name = "LIBC";
number = brlapi_error.libcerrno;
break;
case BRLAPI_ERROR_GAIERR:
name = "GAI";
number = brlapi_error.gaierrno;
break;
default:
name = "BRL";
number = brlapi_error.brlerrno;
break;
}
{
Tcl_Obj *const elements[] = {
Tcl_NewStringObj("BrlAPI", -1),
Tcl_NewStringObj(name, -1),
Tcl_NewIntObj(number),
Tcl_NewStringObj(text, -1)
};
Tcl_SetObjErrorCode(interp, Tcl_NewListObj(4, elements));
}
Tcl_Obj *result = Tcl_GetObjResult(interp);
Tcl_SetStringObj(result, "BrlAPI error: ", -1);
size_t length = strlen(text);
while (length > 0) {
size_t end = length - 1;
if (text[end] != '\n') break;
length = end;
}
Tcl_AppendToObj(result, text, length);
}
static int
initProcNsCompile(Tcl_Interp *interp, Tcl_Parse *parsePtr,
CompileEnv *envPtr) {
if (parsePtr->numWords != 1) {
Tcl_ResetResult(interp);
Tcl_AppendToObj(Tcl_GetObjResult(interp),
"wrong # args: should be '::xotcl::initProcNS'", -1);
envPtr->maxStackDepth = 0;
return TCL_ERROR;
}
TclEmitOpcode(instructions[INST_INITPROC].bytecode, envPtr);
envPtr->maxStackDepth = 0;
return TCL_OK;
}
static int
PlaceInfoCommand(
Tcl_Interp *interp, /* Interp into which to place result. */
Tk_Window tkwin) /* Token for the window to get info on. */
{
Slave *slavePtr;
Tcl_Obj *infoObj;
slavePtr = FindSlave(tkwin);
if (slavePtr == NULL) {
return TCL_OK;
}
infoObj = Tcl_NewObj();
if (slavePtr->masterPtr != NULL) {
Tcl_AppendToObj(infoObj, "-in", -1);
Tcl_ListObjAppendElement(NULL, infoObj,
TkNewWindowObj(slavePtr->masterPtr->tkwin));
Tcl_AppendToObj(infoObj, " ", -1);
}
Tcl_AppendPrintfToObj(infoObj,
"-x %d -relx %.4g -y %d -rely %.4g",
slavePtr->x, slavePtr->relX, slavePtr->y, slavePtr->relY);
if (slavePtr->flags & CHILD_WIDTH) {
Tcl_AppendPrintfToObj(infoObj, " -width %d", slavePtr->width);
} else {
Tcl_AppendToObj(infoObj, " -width {}", -1);
}
if (slavePtr->flags & CHILD_REL_WIDTH) {
Tcl_AppendPrintfToObj(infoObj,
" -relwidth %.4g", slavePtr->relWidth);
} else {
Tcl_AppendToObj(infoObj, " -relwidth {}", -1);
}
if (slavePtr->flags & CHILD_HEIGHT) {
Tcl_AppendPrintfToObj(infoObj, " -height %d", slavePtr->height);
} else {
Tcl_AppendToObj(infoObj, " -height {}", -1);
}
if (slavePtr->flags & CHILD_REL_HEIGHT) {
Tcl_AppendPrintfToObj(infoObj,
" -relheight %.4g", slavePtr->relHeight);
} else {
Tcl_AppendToObj(infoObj, " -relheight {}", -1);
}
Tcl_AppendPrintfToObj(infoObj, " -anchor %s -bordermode %s",
Tk_NameOfAnchor(slavePtr->anchor),
borderModeStrings[slavePtr->borderMode]);
Tcl_SetObjResult(interp, infoObj);
return TCL_OK;
}
int
TclpListVolumes(
Tcl_Interp *interp) /* Interpreter to which to pass the volume list */
{
HParamBlockRec pb;
Str255 name;
OSErr theError = noErr;
Tcl_Obj *resultPtr, *elemPtr;
short volIndex = 1;
resultPtr = Tcl_NewObj();
/*
* We use two facts:
* 1) The Mac volumes are enumerated by the ioVolIndex parameter of
* the HParamBlockRec. They run through the integers contiguously,
* starting at 1.
* 2) PBHGetVInfoSync returns an error when you ask for a volume index
* that does not exist.
*
*/
while ( 1 ) {
pb.volumeParam.ioNamePtr = (StringPtr) & name;
pb.volumeParam.ioVolIndex = volIndex;
theError = PBHGetVInfoSync(&pb);
if ( theError != noErr ) {
break;
}
elemPtr = Tcl_NewStringObj((char *) name + 1, (int) name[0]);
Tcl_AppendToObj(elemPtr, ":", 1);
Tcl_ListObjAppendElement(interp, resultPtr, elemPtr);
volIndex++;
}
Tcl_SetObjResult(interp, resultPtr);
return TCL_OK;
}
static int
GetVariableIndex(
Tcl_Interp *interp, /* Interpreter for error reporting. */
const char *string, /* String containing a variable index
* specified as a nonnegative number less than
* NUMBER_OF_OBJECT_VARS. */
int *indexPtr) /* Place to store converted result. */
{
int index;
if (Tcl_GetInt(interp, string, &index) != TCL_OK) {
return TCL_ERROR;
}
if (index < 0 || index >= NUMBER_OF_OBJECT_VARS) {
Tcl_ResetResult(interp);
Tcl_AppendToObj(Tcl_GetObjResult(interp), "bad variable index", -1);
return TCL_ERROR;
}
*indexPtr = index;
return TCL_OK;
}
/* Load the file f into the string s. */
static void
load_file(FILE* f,
Tcl_Obj* s)
{
char* block = NULL;
size_t block_size = 16384;
size_t rcount = 0;
/* Allocate a block for I/O. */
block = malloc(block_size);
if (!block) {
perror("malloc");
exit(1);
}
/* Iterate over each block of input. */
for (;;) {
/* Read a block. */
rcount = fread(block, 1, block_size, f);
if (rcount == 0) {
/* Check for errors. */
if (ferror(f)) {
perror("fread");
exit(1);
}
/* EOF */
break;
}
/* Append a block. */
Tcl_AppendToObj(s, block, rcount);
}
/* Free block. */
free(block);
}
static int
TestintobjCmd(
ClientData clientData, /* Not used. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
int intValue, varIndex, i;
long longValue;
const char *index, *subCmd, *string;
if (objc < 3) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
subCmd = Tcl_GetString(objv[1]);
if (strcmp(subCmd, "set") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
string = Tcl_GetString(objv[3]);
if (Tcl_GetInt(interp, string, &i) != TCL_OK) {
return TCL_ERROR;
}
intValue = i;
/*
* If the object currently bound to the variable with index varIndex
* has ref count 1 (i.e. the object is unshared) we can modify that
* object directly. Otherwise, if RC>1 (i.e. the object is shared), we
* must create a new object to modify/set and decrement the old
* formerly-shared object's ref count. This is "copy on write".
*/
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetIntObj(varPtr[varIndex], intValue);
} else {
SetVarToObj(varIndex, Tcl_NewIntObj(intValue));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "set2") == 0) { /* doesn't set result */
if (objc != 4) {
goto wrongNumArgs;
}
string = Tcl_GetString(objv[3]);
if (Tcl_GetInt(interp, string, &i) != TCL_OK) {
return TCL_ERROR;
}
intValue = i;
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetIntObj(varPtr[varIndex], intValue);
} else {
SetVarToObj(varIndex, Tcl_NewIntObj(intValue));
}
} else if (strcmp(subCmd, "setlong") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
string = Tcl_GetString(objv[3]);
if (Tcl_GetInt(interp, string, &i) != TCL_OK) {
return TCL_ERROR;
}
intValue = i;
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetLongObj(varPtr[varIndex], intValue);
} else {
SetVarToObj(varIndex, Tcl_NewLongObj(intValue));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "setmaxlong") == 0) {
long maxLong = LONG_MAX;
if (objc != 3) {
goto wrongNumArgs;
}
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetLongObj(varPtr[varIndex], maxLong);
} else {
SetVarToObj(varIndex, Tcl_NewLongObj(maxLong));
}
} else if (strcmp(subCmd, "ismaxlong") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetLongFromObj(interp, varPtr[varIndex], &longValue) != TCL_OK) {
return TCL_ERROR;
}
Tcl_AppendToObj(Tcl_GetObjResult(interp),
((longValue == LONG_MAX)? "1" : "0"), -1);
} else if (strcmp(subCmd, "get") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "get2") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
string = Tcl_GetString(varPtr[varIndex]);
Tcl_AppendToObj(Tcl_GetObjResult(interp), string, -1);
} else if (strcmp(subCmd, "inttoobigtest") == 0) {
/*
* If long ints have more bits than ints on this platform, verify that
* Tcl_GetIntFromObj returns an error if the long int held in an
* integer object's internal representation is too large to fit in an
* int.
*/
if (objc != 3) {
goto wrongNumArgs;
}
#if (INT_MAX == LONG_MAX) /* int is same size as long int */
Tcl_AppendToObj(Tcl_GetObjResult(interp), "1", -1);
#else
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetLongObj(varPtr[varIndex], LONG_MAX);
} else {
SetVarToObj(varIndex, Tcl_NewLongObj(LONG_MAX));
}
if (Tcl_GetIntFromObj(interp, varPtr[varIndex], &i) != TCL_OK) {
Tcl_ResetResult(interp);
Tcl_AppendToObj(Tcl_GetObjResult(interp), "1", -1);
return TCL_OK;
}
Tcl_AppendToObj(Tcl_GetObjResult(interp), "0", -1);
#endif
} else if (strcmp(subCmd, "mult10") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetIntFromObj(interp, varPtr[varIndex],
&intValue) != TCL_OK) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetIntObj(varPtr[varIndex], intValue * 10);
} else {
SetVarToObj(varIndex, Tcl_NewIntObj(intValue * 10));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "div10") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetIntFromObj(interp, varPtr[varIndex],
&intValue) != TCL_OK) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetIntObj(varPtr[varIndex], intValue / 10);
} else {
SetVarToObj(varIndex, Tcl_NewIntObj(intValue / 10));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"bad option \"", Tcl_GetString(objv[1]),
"\": must be set, get, get2, mult10, or div10", NULL);
return TCL_ERROR;
}
return TCL_OK;
}
void TclTextInterp::doEvent() {
if (!done_waiting())
return;
// no recursive calls to TclEvalObj; this prevents
// display update ui from messing up Tcl.
if (callLevel)
return;
Tcl_Channel inChannel = Tcl_GetStdChannel(TCL_STDIN);
Tcl_Channel outChannel = Tcl_GetStdChannel(TCL_STDOUT);
if (needPrompt && consoleisatty) {
#if TCL_MINOR_VERSION >= 4
if (gotPartial) {
Tcl_WriteChars(outChannel, "? ", -1);
} else {
Tcl_WriteChars(outChannel, VMD_CMD_PROMPT, -1);
}
#else
if (gotPartial) {
Tcl_Write(outChannel, "? ", -1);
} else {
Tcl_Write(outChannel, VMD_CMD_PROMPT, -1);
}
#endif
#if defined(VMDTKCON)
vmdcon_purge();
#endif
Tcl_Flush(outChannel);
needPrompt = 0;
}
#if defined(VMD_NANOHUB)
return;
#endif
//
// MPI builds of VMD cannot try to read any command input from the
// console because it creates shutdown problems, at least with MPICH.
// File-based command input is fine however.
//
// For the time being, the Android builds won't attempt to get any
// console input. Any input we're going to get is going to come via
// some means other than stdin, such as a network socket, text box, etc.
//
if (ignorestdin)
return;
if (!vmd_check_stdin())
return;
//
// event loop based on tclMain.c
//
// According to the Tcl docs, GetsObj returns -1 on error or EOF.
int length = Tcl_GetsObj(inChannel, commandPtr);
if (length < 0) {
if (Tcl_Eof(inChannel)) {
// exit if we're not a tty, or if eofexit is set
if ((!consoleisatty) || app->get_eofexit())
app->VMDexit("", 0, 0);
} else {
msgErr << "Error reading Tcl input: " << Tcl_ErrnoMsg(Tcl_GetErrno())
<< sendmsg;
}
return;
}
needPrompt = 1;
// add the newline removed by Tcl_GetsObj
Tcl_AppendToObj(commandPtr, "\n", 1);
char *stringrep = Tcl_GetStringFromObj(commandPtr, NULL);
if (!Tcl_CommandComplete(stringrep)) {
gotPartial = 1;
return;
}
gotPartial = 0;
callLevel++;
#if defined(VMD_NANOHUB)
Tcl_EvalObjEx(interp, commandPtr, 0);
#else
Tcl_RecordAndEvalObj(interp, commandPtr, 0);
#endif
callLevel--;
#if TCL_MINOR_VERSION >= 4
Tcl_DecrRefCount(commandPtr);
commandPtr = Tcl_NewObj();
Tcl_IncrRefCount(commandPtr);
#else
// XXX this crashes Tcl 8.5.[46] with an internal panic
Tcl_SetObjLength(commandPtr, 0);
#endif
// if ok, send to stdout; if not, send to stderr
Tcl_Obj *resultPtr = Tcl_GetObjResult(interp);
char *bytes = Tcl_GetStringFromObj(resultPtr, &length);
#if defined(VMDTKCON)
if (length > 0) {
vmdcon_append(VMDCON_ALWAYS, bytes,length);
vmdcon_append(VMDCON_ALWAYS, "\n", 1);
}
vmdcon_purge();
#else
if (length > 0) {
#if TCL_MINOR_VERSION >= 4
Tcl_WriteChars(outChannel, bytes, length);
Tcl_WriteChars(outChannel, "\n", 1);
#else
Tcl_Write(outChannel, bytes, length);
Tcl_Write(outChannel, "\n", 1);
#endif
}
Tcl_Flush(outChannel);
#endif
}
int TclTextInterp::evalString(const char *s) {
#if defined(VMD_NANOHUB)
if (Tcl_Eval(interp, s) != TCL_OK) {
#else
if (Tcl_RecordAndEval(interp, s, 0) != TCL_OK) {
#endif
// Don't print error message if there's nothing to show.
if (strlen(Tcl_GetStringResult(interp)))
msgErr << Tcl_GetStringResult(interp) << sendmsg;
return FALSE;
}
return TRUE;
}
void TclTextInterp::setString(const char *name, const char *val) {
if (interp)
Tcl_SetVar(interp, name, val,
TCL_GLOBAL_ONLY | TCL_LEAVE_ERR_MSG);
}
void TclTextInterp::setMap(const char *name, const char *key,
const char *val) {
if (interp)
Tcl_SetVar2(interp, name, key, val,
TCL_GLOBAL_ONLY | TCL_LEAVE_ERR_MSG);
}
// There's a fair amount of code duplication between doEvent and evalFile,
// maybe these could be combined somehow, say by having TclTextInterp keep
// track of its Tcl_Channel objects.
//
// Side note: Reading line-by-line gives different Tcl semantics than
// just calling Tcl_EvalFile. Shell commands (e.g., stty) are properly
// parsed when read line-by-line and passed to Tcl_RecordAndEval, but are
// unrecognized when contained in a file read by Tcl_EvalFile. I would
// consider this a bug.
int TclTextInterp::evalFile(const char *fname) {
Tcl_Channel inchannel = Tcl_OpenFileChannel(interp, fname, "r", 0644);
Tcl_Channel outchannel = Tcl_GetStdChannel(TCL_STDOUT);
if (inchannel == NULL) {
msgErr << "Error opening file " << fname << sendmsg;
msgErr << Tcl_GetStringResult(interp) << sendmsg;
return 1;
}
Tcl_Obj *cmdPtr = Tcl_NewObj();
Tcl_IncrRefCount(cmdPtr);
int length = 0;
while ((length = Tcl_GetsObj(inchannel, cmdPtr)) >= 0) {
Tcl_AppendToObj(cmdPtr, "\n", 1);
char *stringrep = Tcl_GetStringFromObj(cmdPtr, NULL);
if (!Tcl_CommandComplete(stringrep)) {
continue;
}
// check if "exit" was called
if (app->exitFlag) break;
#if defined(VMD_NANOHUB)
Tcl_EvalObjEx(interp, cmdPtr, 0);
#else
Tcl_RecordAndEvalObj(interp, cmdPtr, 0);
#endif
#if TCL_MINOR_VERSION >= 4
Tcl_DecrRefCount(cmdPtr);
cmdPtr = Tcl_NewObj();
Tcl_IncrRefCount(cmdPtr);
#else
// XXX this crashes Tcl 8.5.[46] with an internal panic
Tcl_SetObjLength(cmdPtr, 0);
#endif
// XXX this makes sure the display is updated
// after each line read from the file or pipe
// So, this is also where we'd optimise reading multiple
// lines at once
//
// In VR modes (CAVE, FreeVR, VR Juggler) the draw method will
// not be called from app->display_update(), so multiple lines
// of input could be combined in one frame, if possible
app->display_update();
Tcl_Obj *resultPtr = Tcl_GetObjResult(interp);
char *bytes = Tcl_GetStringFromObj(resultPtr, &length);
#if defined(VMDTKCON)
if (length > 0) {
vmdcon_append(VMDCON_ALWAYS, bytes,length);
vmdcon_append(VMDCON_ALWAYS, "\n", 1);
}
vmdcon_purge();
#else
if (length > 0) {
#if TCL_MINOR_VERSION >= 4
Tcl_WriteChars(outchannel, bytes, length);
Tcl_WriteChars(outchannel, "\n", 1);
#else
Tcl_Write(outchannel, bytes, length);
Tcl_Write(outchannel, "\n", 1);
#endif
}
Tcl_Flush(outchannel);
#endif
}
Tcl_Close(interp, inchannel);
Tcl_DecrRefCount(cmdPtr);
return 0;
}
/* $scale set $newValue
*/
static int
ScaleSetCommand(
void *recordPtr, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[])
{
Scale *scalePtr = recordPtr;
double from = 0.0, to = 1.0, value;
int result = TCL_OK;
if (objc != 3) {
Tcl_WrongNumArgs(interp, 1, objv, "set value");
return TCL_ERROR;
}
if (Tcl_GetDoubleFromObj(interp, objv[2], &value) != TCL_OK) {
return TCL_ERROR;
}
if (scalePtr->core.state & TTK_STATE_DISABLED) {
return TCL_OK;
}
/* ASSERT: fromObj and toObj are valid doubles.
*/
Tcl_GetDoubleFromObj(interp, scalePtr->scale.fromObj, &from);
Tcl_GetDoubleFromObj(interp, scalePtr->scale.toObj, &to);
/* Limit new value to between 'from' and 'to':
*/
if (from < to) {
value = value < from ? from : value > to ? to : value;
} else {
value = value < to ? to : value > from ? from : value;
}
/*
* Set value:
*/
Tcl_DecrRefCount(scalePtr->scale.valueObj);
scalePtr->scale.valueObj = Tcl_NewDoubleObj(value);
Tcl_IncrRefCount(scalePtr->scale.valueObj);
TtkRedisplayWidget(&scalePtr->core);
/*
* Set attached variable, if any:
*/
if (scalePtr->scale.variableObj != NULL) {
Tcl_ObjSetVar2(interp, scalePtr->scale.variableObj, NULL,
scalePtr->scale.valueObj, TCL_GLOBAL_ONLY);
}
if (WidgetDestroyed(&scalePtr->core)) {
return TCL_ERROR;
}
/*
* Invoke -command, if any:
*/
if (scalePtr->scale.commandObj != NULL) {
Tcl_Obj *cmdObj = Tcl_DuplicateObj(scalePtr->scale.commandObj);
Tcl_IncrRefCount(cmdObj);
Tcl_AppendToObj(cmdObj, " ", 1);
Tcl_AppendObjToObj(cmdObj, scalePtr->scale.valueObj);
result = Tcl_EvalObjEx(interp, cmdObj, TCL_EVAL_GLOBAL);
Tcl_DecrRefCount(cmdObj);
}
return result;
}
void
Tcl_WrongNumArgs(
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments to print from objv. */
Tcl_Obj *const objv[], /* Initial argument objects, which should be
* included in the error message. */
const char *message) /* Error message to print after the leading
* objects in objv. The message may be
* NULL. */
{
Tcl_Obj *objPtr;
int i, len, elemLen, flags;
Interp *iPtr = (Interp *) interp;
const char *elementStr;
/*
* [incr Tcl] does something fairly horrific when generating error
* messages for its ensembles; it passes the whole set of ensemble
* arguments as a list in the first argument. This means that this code
* causes a problem in iTcl if it attempts to correctly quote all
* arguments, which would be the correct thing to do. We work around this
* nasty behaviour for now, and hope that we can remove it all in the
* future...
*/
#ifndef AVOID_HACKS_FOR_ITCL
int isFirst = 1; /* Special flag used to inhibit the treating
* of the first word as a list element so the
* hacky way Itcl generates error messages for
* its ensembles will still work. [Bug
* 1066837] */
# define MAY_QUOTE_WORD (!isFirst)
# define AFTER_FIRST_WORD (isFirst = 0)
#else /* !AVOID_HACKS_FOR_ITCL */
# define MAY_QUOTE_WORD 1
# define AFTER_FIRST_WORD (void) 0
#endif /* AVOID_HACKS_FOR_ITCL */
TclNewObj(objPtr);
if (iPtr->flags & INTERP_ALTERNATE_WRONG_ARGS) {
Tcl_AppendObjToObj(objPtr, Tcl_GetObjResult(interp));
Tcl_AppendToObj(objPtr, " or \"", -1);
} else {
Tcl_AppendToObj(objPtr, "wrong # args: should be \"", -1);
}
/*
* Check to see if we are processing an ensemble implementation, and if so
* rewrite the results in terms of how the ensemble was invoked.
*/
if (iPtr->ensembleRewrite.sourceObjs != NULL) {
int toSkip = iPtr->ensembleRewrite.numInsertedObjs;
int toPrint = iPtr->ensembleRewrite.numRemovedObjs;
Tcl_Obj *const *origObjv = iPtr->ensembleRewrite.sourceObjs;
/*
* We only know how to do rewriting if all the replaced objects are
* actually arguments (in objv) to this function. Otherwise it just
* gets too complicated and we'd be better off just giving a slightly
* confusing error message...
*/
if (objc < toSkip) {
goto addNormalArgumentsToMessage;
}
/*
* Strip out the actual arguments that the ensemble inserted.
*/
objv += toSkip;
objc -= toSkip;
/*
* We assume no object is of index type.
*/
for (i=0 ; i<toPrint ; i++) {
/*
* Add the element, quoting it if necessary.
*/
if (origObjv[i]->typePtr == &indexType) {
register IndexRep *indexRep =
origObjv[i]->internalRep.twoPtrValue.ptr1;
elementStr = EXPAND_OF(indexRep);
elemLen = strlen(elementStr);
} else if (origObjv[i]->typePtr == &tclEnsembleCmdType) {
register EnsembleCmdRep *ecrPtr =
origObjv[i]->internalRep.twoPtrValue.ptr1;
elementStr = ecrPtr->fullSubcmdName;
elemLen = strlen(elementStr);
} else {
elementStr = TclGetStringFromObj(origObjv[i], &elemLen);
}
flags = 0;
len = TclScanElement(elementStr, elemLen, &flags);
if (MAY_QUOTE_WORD && len != elemLen) {
char *quotedElementStr = TclStackAlloc(interp,
(unsigned)len + 1);
len = TclConvertElement(elementStr, elemLen,
quotedElementStr, flags);
Tcl_AppendToObj(objPtr, quotedElementStr, len);
TclStackFree(interp, quotedElementStr);
} else {
Tcl_AppendToObj(objPtr, elementStr, elemLen);
}
AFTER_FIRST_WORD;
/*
* Add a space if the word is not the last one (which has a
* moderately complex condition here).
*/
if (i<toPrint-1 || objc!=0 || message!=NULL) {
Tcl_AppendStringsToObj(objPtr, " ", NULL);
}
}
}
/*
* Now add the arguments (other than those rewritten) that the caller took
* from its calling context.
*/
addNormalArgumentsToMessage:
for (i = 0; i < objc; i++) {
/*
* If the object is an index type use the index table which allows for
* the correct error message even if the subcommand was abbreviated.
* Otherwise, just use the string rep.
*/
if (objv[i]->typePtr == &indexType) {
register IndexRep *indexRep = objv[i]->internalRep.twoPtrValue.ptr1;
Tcl_AppendStringsToObj(objPtr, EXPAND_OF(indexRep), NULL);
} else if (objv[i]->typePtr == &tclEnsembleCmdType) {
register EnsembleCmdRep *ecrPtr =
objv[i]->internalRep.twoPtrValue.ptr1;
Tcl_AppendStringsToObj(objPtr, ecrPtr->fullSubcmdName, NULL);
} else {
/*
* Quote the argument if it contains spaces (Bug 942757).
*/
elementStr = TclGetStringFromObj(objv[i], &elemLen);
flags = 0;
len = TclScanElement(elementStr, elemLen, &flags);
if (MAY_QUOTE_WORD && len != elemLen) {
char *quotedElementStr = TclStackAlloc(interp,
(unsigned) len + 1);
len = TclConvertElement(elementStr, elemLen,
quotedElementStr, flags);
Tcl_AppendToObj(objPtr, quotedElementStr, len);
TclStackFree(interp, quotedElementStr);
} else {
Tcl_AppendToObj(objPtr, elementStr, elemLen);
}
}
AFTER_FIRST_WORD;
/*
* Append a space character (" ") if there is more text to follow
* (either another element from objv, or the message string).
*/
if (i<objc-1 || message!=NULL) {
Tcl_AppendStringsToObj(objPtr, " ", NULL);
}
}
/*
* Add any trailing message bits and set the resulting string as the
* interpreter result. Caller is responsible for reporting this as an
* actual error.
*/
if (message != NULL) {
Tcl_AppendStringsToObj(objPtr, message, NULL);
}
Tcl_AppendStringsToObj(objPtr, "\"", NULL);
Tcl_SetObjResult(interp, objPtr);
#undef MAY_QUOTE_WORD
#undef AFTER_FIRST_WORD
}
/* ARGSUSED */
static void
StdinProc(
ClientData clientData, /* The state of interactive cmd line */
int mask) /* Not used. */
{
int code, length;
InteractiveState *isPtr = clientData;
Tcl_Channel chan = isPtr->input;
Tcl_Obj *commandPtr = isPtr->commandPtr;
Tcl_Interp *interp = isPtr->interp;
if (Tcl_IsShared(commandPtr)) {
Tcl_DecrRefCount(commandPtr);
commandPtr = Tcl_DuplicateObj(commandPtr);
Tcl_IncrRefCount(commandPtr);
}
length = Tcl_GetsObj(chan, commandPtr);
if (length < 0) {
if (Tcl_InputBlocked(chan)) {
return;
}
if (isPtr->tty) {
/*
* Would be better to find a way to exit the mainLoop? Or perhaps
* evaluate [exit]? Leaving as is for now due to compatibility
* concerns.
*/
Tcl_Exit(0);
}
Tcl_DeleteChannelHandler(chan, StdinProc, isPtr);
return;
}
if (Tcl_IsShared(commandPtr)) {
Tcl_DecrRefCount(commandPtr);
commandPtr = Tcl_DuplicateObj(commandPtr);
Tcl_IncrRefCount(commandPtr);
}
Tcl_AppendToObj(commandPtr, "\n", 1);
if (!TclObjCommandComplete(commandPtr)) {
isPtr->prompt = PROMPT_CONTINUE;
goto prompt;
}
isPtr->prompt = PROMPT_START;
Tcl_GetStringFromObj(commandPtr, &length);
Tcl_SetObjLength(commandPtr, --length);
/*
* Disable the stdin channel handler while evaluating the command;
* otherwise if the command re-enters the event loop we might process
* commands from stdin before the current command is finished. Among other
* things, this will trash the text of the command being evaluated.
*/
Tcl_CreateChannelHandler(chan, 0, StdinProc, isPtr);
code = Tcl_RecordAndEvalObj(interp, commandPtr, TCL_EVAL_GLOBAL);
isPtr->input = chan = Tcl_GetStdChannel(TCL_STDIN);
Tcl_DecrRefCount(commandPtr);
isPtr->commandPtr = commandPtr = Tcl_NewObj();
Tcl_IncrRefCount(commandPtr);
if (chan != NULL) {
Tcl_CreateChannelHandler(chan, TCL_READABLE, StdinProc, isPtr);
}
if (code != TCL_OK) {
chan = Tcl_GetStdChannel(TCL_STDERR);
if (chan != NULL) {
Tcl_WriteObj(chan, Tcl_GetObjResult(interp));
Tcl_WriteChars(chan, "\n", 1);
}
} else if (isPtr->tty) {
Tcl_Obj *resultPtr = Tcl_GetObjResult(interp);
chan = Tcl_GetStdChannel(TCL_STDOUT);
Tcl_IncrRefCount(resultPtr);
Tcl_GetStringFromObj(resultPtr, &length);
if ((length > 0) && (chan != NULL)) {
Tcl_WriteObj(chan, resultPtr);
Tcl_WriteChars(chan, "\n", 1);
}
Tcl_DecrRefCount(resultPtr);
}
/*
* If a tty stdin is still around, output a prompt.
*/
prompt:
if (isPtr->tty && (isPtr->input != NULL)) {
Prompt(interp, isPtr);
isPtr->input = Tcl_GetStdChannel(TCL_STDIN);
}
}
void
Tcl_Main(
int argc, /* Number of arguments. */
char **argv, /* Array of argument strings. */
Tcl_AppInitProc *appInitProc)
/* Application-specific initialization
* function to call after most initialization
* but before starting to execute commands. */
{
Tcl_Obj *path, *resultPtr, *argvPtr, *commandPtr = NULL;
const char *encodingName = NULL;
PromptType prompt = PROMPT_START;
int code, length, tty, exitCode = 0;
Tcl_Channel inChannel, outChannel, errChannel;
Tcl_Interp *interp;
Tcl_DString appName;
Tcl_FindExecutable(argv[0]);
interp = Tcl_CreateInterp();
Tcl_InitMemory(interp);
/*
* If the application has not already set a startup script, parse the
* first few command line arguments to determine the script path and
* encoding.
*/
if (NULL == Tcl_GetStartupScript(NULL)) {
/*
* Check whether first 3 args (argv[1] - argv[3]) look like
* -encoding ENCODING FILENAME
* or like
* FILENAME
*/
if ((argc > 3) && (0 == strcmp("-encoding", argv[1]))
&& ('-' != argv[3][0])) {
Tcl_SetStartupScript(Tcl_NewStringObj(argv[3], -1), argv[2]);
argc -= 3;
argv += 3;
} else if ((argc > 1) && ('-' != argv[1][0])) {
Tcl_SetStartupScript(Tcl_NewStringObj(argv[1], -1), NULL);
argc--;
argv++;
}
}
path = Tcl_GetStartupScript(&encodingName);
if (path == NULL) {
Tcl_ExternalToUtfDString(NULL, argv[0], -1, &appName);
} else {
const char *pathName = Tcl_GetStringFromObj(path, &length);
Tcl_ExternalToUtfDString(NULL, pathName, length, &appName);
path = Tcl_NewStringObj(Tcl_DStringValue(&appName), -1);
Tcl_SetStartupScript(path, encodingName);
}
Tcl_SetVar(interp, "argv0", Tcl_DStringValue(&appName), TCL_GLOBAL_ONLY);
Tcl_DStringFree(&appName);
argc--;
argv++;
Tcl_SetVar2Ex(interp, "argc", NULL, Tcl_NewIntObj(argc), TCL_GLOBAL_ONLY);
argvPtr = Tcl_NewListObj(0, NULL);
while (argc--) {
Tcl_DString ds;
Tcl_ExternalToUtfDString(NULL, *argv++, -1, &ds);
Tcl_ListObjAppendElement(NULL, argvPtr, Tcl_NewStringObj(
Tcl_DStringValue(&ds), Tcl_DStringLength(&ds)));
Tcl_DStringFree(&ds);
}
Tcl_SetVar2Ex(interp, "argv", NULL, argvPtr, TCL_GLOBAL_ONLY);
/*
* Set the "tcl_interactive" variable.
*/
tty = isatty(0);
Tcl_SetVar(interp, "tcl_interactive", ((path == NULL) && tty) ? "1" : "0",
TCL_GLOBAL_ONLY);
/*
* Invoke application-specific initialization.
*/
Tcl_Preserve(interp);
if (appInitProc(interp) != TCL_OK) {
errChannel = Tcl_GetStdChannel(TCL_STDERR);
if (errChannel) {
Tcl_WriteChars(errChannel,
"application-specific initialization failed: ", -1);
Tcl_WriteObj(errChannel, Tcl_GetObjResult(interp));
Tcl_WriteChars(errChannel, "\n", 1);
}
}
if (Tcl_InterpDeleted(interp)) {
goto done;
}
if (Tcl_LimitExceeded(interp)) {
goto done;
}
/*
* If a script file was specified then just source that file and quit.
* Must fetch it again, as the appInitProc might have reset it.
*/
path = Tcl_GetStartupScript(&encodingName);
if (path != NULL) {
code = Tcl_FSEvalFileEx(interp, path, encodingName);
if (code != TCL_OK) {
errChannel = Tcl_GetStdChannel(TCL_STDERR);
if (errChannel) {
Tcl_Obj *options = Tcl_GetReturnOptions(interp, code);
Tcl_Obj *keyPtr, *valuePtr;
TclNewLiteralStringObj(keyPtr, "-errorinfo");
Tcl_IncrRefCount(keyPtr);
Tcl_DictObjGet(NULL, options, keyPtr, &valuePtr);
Tcl_DecrRefCount(keyPtr);
if (valuePtr) {
Tcl_WriteObj(errChannel, valuePtr);
}
Tcl_WriteChars(errChannel, "\n", 1);
}
exitCode = 1;
}
goto done;
}
/*
* We're running interactively. Source a user-specific startup file if the
* application specified one and if the file exists.
*/
Tcl_SourceRCFile(interp);
if (Tcl_LimitExceeded(interp)) {
goto done;
}
/*
* Process commands from stdin until there's an end-of-file. Note that we
* need to fetch the standard channels again after every eval, since they
* may have been changed.
*/
commandPtr = Tcl_NewObj();
Tcl_IncrRefCount(commandPtr);
/*
* Get a new value for tty if anyone writes to ::tcl_interactive
*/
Tcl_LinkVar(interp, "tcl_interactive", (char *) &tty, TCL_LINK_BOOLEAN);
inChannel = Tcl_GetStdChannel(TCL_STDIN);
outChannel = Tcl_GetStdChannel(TCL_STDOUT);
while ((inChannel != NULL) && !Tcl_InterpDeleted(interp)) {
if (mainLoopProc == NULL) {
if (tty) {
Prompt(interp, &prompt);
if (Tcl_InterpDeleted(interp)) {
break;
}
if (Tcl_LimitExceeded(interp)) {
break;
}
inChannel = Tcl_GetStdChannel(TCL_STDIN);
if (inChannel == NULL) {
break;
}
}
if (Tcl_IsShared(commandPtr)) {
Tcl_DecrRefCount(commandPtr);
commandPtr = Tcl_DuplicateObj(commandPtr);
Tcl_IncrRefCount(commandPtr);
}
length = Tcl_GetsObj(inChannel, commandPtr);
if (length < 0) {
if (Tcl_InputBlocked(inChannel)) {
/*
* This can only happen if stdin has been set to
* non-blocking. In that case cycle back and try again.
* This sets up a tight polling loop (since we have no
* event loop running). If this causes bad CPU hogging, we
* might try toggling the blocking on stdin instead.
*/
continue;
}
/*
* Either EOF, or an error on stdin; we're done
*/
break;
}
/*
* Add the newline removed by Tcl_GetsObj back to the string. Have
* to add it back before testing completeness, because it can make
* a difference. [Bug 1775878]
*/
if (Tcl_IsShared(commandPtr)) {
Tcl_DecrRefCount(commandPtr);
commandPtr = Tcl_DuplicateObj(commandPtr);
Tcl_IncrRefCount(commandPtr);
}
Tcl_AppendToObj(commandPtr, "\n", 1);
if (!TclObjCommandComplete(commandPtr)) {
prompt = PROMPT_CONTINUE;
continue;
}
prompt = PROMPT_START;
/*
* The final newline is syntactically redundant, and causes some
* error messages troubles deeper in, so lop it back off.
*/
Tcl_GetStringFromObj(commandPtr, &length);
Tcl_SetObjLength(commandPtr, --length);
code = Tcl_RecordAndEvalObj(interp, commandPtr, TCL_EVAL_GLOBAL);
inChannel = Tcl_GetStdChannel(TCL_STDIN);
outChannel = Tcl_GetStdChannel(TCL_STDOUT);
errChannel = Tcl_GetStdChannel(TCL_STDERR);
Tcl_DecrRefCount(commandPtr);
commandPtr = Tcl_NewObj();
Tcl_IncrRefCount(commandPtr);
if (code != TCL_OK) {
if (errChannel) {
Tcl_WriteObj(errChannel, Tcl_GetObjResult(interp));
Tcl_WriteChars(errChannel, "\n", 1);
}
} else if (tty) {
resultPtr = Tcl_GetObjResult(interp);
Tcl_IncrRefCount(resultPtr);
Tcl_GetStringFromObj(resultPtr, &length);
if ((length > 0) && outChannel) {
Tcl_WriteObj(outChannel, resultPtr);
Tcl_WriteChars(outChannel, "\n", 1);
}
Tcl_DecrRefCount(resultPtr);
}
} else { /* (mainLoopProc != NULL) */
/*
* If a main loop has been defined while running interactively, we
* want to start a fileevent based prompt by establishing a
* channel handler for stdin.
*/
InteractiveState *isPtr = NULL;
if (inChannel) {
if (tty) {
Prompt(interp, &prompt);
}
isPtr = (InteractiveState *)
ckalloc(sizeof(InteractiveState));
isPtr->input = inChannel;
isPtr->tty = tty;
isPtr->commandPtr = commandPtr;
isPtr->prompt = prompt;
isPtr->interp = interp;
Tcl_UnlinkVar(interp, "tcl_interactive");
Tcl_LinkVar(interp, "tcl_interactive", (char *) &(isPtr->tty),
TCL_LINK_BOOLEAN);
Tcl_CreateChannelHandler(inChannel, TCL_READABLE, StdinProc,
isPtr);
}
mainLoopProc();
mainLoopProc = NULL;
if (inChannel) {
tty = isPtr->tty;
Tcl_UnlinkVar(interp, "tcl_interactive");
Tcl_LinkVar(interp, "tcl_interactive", (char *) &tty,
TCL_LINK_BOOLEAN);
prompt = isPtr->prompt;
commandPtr = isPtr->commandPtr;
if (isPtr->input != NULL) {
Tcl_DeleteChannelHandler(isPtr->input, StdinProc, isPtr);
}
ckfree((char *) isPtr);
}
inChannel = Tcl_GetStdChannel(TCL_STDIN);
outChannel = Tcl_GetStdChannel(TCL_STDOUT);
errChannel = Tcl_GetStdChannel(TCL_STDERR);
}
#ifdef TCL_MEM_DEBUG
/*
* This code here only for the (unsupported and deprecated) [checkmem]
* command.
*/
if (tclMemDumpFileName != NULL) {
mainLoopProc = NULL;
Tcl_DeleteInterp(interp);
}
#endif
}
done:
if ((exitCode == 0) && (mainLoopProc != NULL)
&& !Tcl_LimitExceeded(interp)) {
/*
* If everything has gone OK so far, call the main loop proc, if it
* exists. Packages (like Tk) can set it to start processing events at
* this point.
*/
mainLoopProc();
mainLoopProc = NULL;
}
if (commandPtr != NULL) {
Tcl_DecrRefCount(commandPtr);
}
/*
* Rather than calling exit, invoke the "exit" command so that users can
* replace "exit" with some other command to do additional cleanup on
* exit. The Tcl_EvalObjEx call should never return.
*/
if (!Tcl_InterpDeleted(interp)) {
if (!Tcl_LimitExceeded(interp)) {
Tcl_Obj *cmd = Tcl_ObjPrintf("exit %d", exitCode);
Tcl_IncrRefCount(cmd);
Tcl_EvalObjEx(interp, cmd, TCL_EVAL_GLOBAL);
Tcl_DecrRefCount(cmd);
}
/*
* If Tcl_EvalObjEx returns, trying to eval [exit], something unusual
* is happening. Maybe interp has been deleted; maybe [exit] was
* redefined, maybe we've blown up because of an exceeded limit. We
* still want to cleanup and exit.
*/
if (!Tcl_InterpDeleted(interp)) {
Tcl_DeleteInterp(interp);
}
}
Tcl_SetStartupScript(NULL, NULL);
/*
* If we get here, the master interp has been deleted. Allow its
* destruction with the last matching Tcl_Release.
*/
Tcl_Release(interp);
Tcl_Exit(exitCode);
}
static int
TestobjCmd(
ClientData clientData, /* Not used. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
int varIndex, destIndex, i;
const char *index, *subCmd, *string;
const Tcl_ObjType *targetType;
if (objc < 2) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
subCmd = Tcl_GetString(objv[1]);
if (strcmp(subCmd, "assign") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
string = Tcl_GetString(objv[3]);
if (GetVariableIndex(interp, string, &destIndex) != TCL_OK) {
return TCL_ERROR;
}
SetVarToObj(destIndex, varPtr[varIndex]);
Tcl_SetObjResult(interp, varPtr[destIndex]);
} else if (strcmp(subCmd, "convert") == 0) {
const char *typeName;
if (objc != 4) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
typeName = Tcl_GetString(objv[3]);
if ((targetType = Tcl_GetObjType(typeName)) == NULL) {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"no type ", typeName, " found", NULL);
return TCL_ERROR;
}
if (Tcl_ConvertToType(interp, varPtr[varIndex], targetType)
!= TCL_OK) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "duplicate") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
string = Tcl_GetString(objv[3]);
if (GetVariableIndex(interp, string, &destIndex) != TCL_OK) {
return TCL_ERROR;
}
SetVarToObj(destIndex, Tcl_DuplicateObj(varPtr[varIndex]));
Tcl_SetObjResult(interp, varPtr[destIndex]);
} else if (strcmp(subCmd, "freeallvars") == 0) {
if (objc != 2) {
goto wrongNumArgs;
}
for (i = 0; i < NUMBER_OF_OBJECT_VARS; i++) {
if (varPtr[i] != NULL) {
Tcl_DecrRefCount(varPtr[i]);
varPtr[i] = NULL;
}
}
} else if (strcmp(subCmd, "invalidateStringRep") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
Tcl_InvalidateStringRep(varPtr[varIndex]);
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "newobj") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
SetVarToObj(varIndex, Tcl_NewObj());
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "objtype") == 0) {
const char *typeName;
/*
* Return an object containing the name of the argument's type of
* internal rep. If none exists, return "none".
*/
if (objc != 3) {
goto wrongNumArgs;
}
if (objv[2]->typePtr == NULL) {
Tcl_SetObjResult(interp, Tcl_NewStringObj("none", -1));
} else {
typeName = objv[2]->typePtr->name;
Tcl_SetObjResult(interp, Tcl_NewStringObj(typeName, -1));
}
} else if (strcmp(subCmd, "refcount") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, Tcl_NewIntObj(varPtr[varIndex]->refCount));
} else if (strcmp(subCmd, "type") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
if (varPtr[varIndex]->typePtr == NULL) { /* a string! */
Tcl_AppendToObj(Tcl_GetObjResult(interp), "string", -1);
} else {
Tcl_AppendToObj(Tcl_GetObjResult(interp),
varPtr[varIndex]->typePtr->name, -1);
}
} else if (strcmp(subCmd, "types") == 0) {
if (objc != 2) {
goto wrongNumArgs;
}
if (Tcl_AppendAllObjTypes(interp,
Tcl_GetObjResult(interp)) != TCL_OK) {
return TCL_ERROR;
}
} else {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"bad option \"", Tcl_GetString(objv[1]),
"\": must be assign, convert, duplicate, freeallvars, "
"newobj, objcount, objtype, refcount, type, or types", NULL);
return TCL_ERROR;
}
return TCL_OK;
}
Tcl_Channel
Tcl_OpenTcpServer(
Tcl_Interp *interp, /* For error reporting - may be NULL. */
int port, /* Port number to open. */
const char *myHost, /* Name of local host. */
Tcl_TcpAcceptProc *acceptProc,
/* Callback for accepting connections from new
* clients. */
ClientData acceptProcData) /* Data for the callback. */
{
int status = 0, sock = -1, reuseaddr = 1, chosenport = 0;
struct addrinfo *addrlist = NULL, *addrPtr; /* socket address */
TcpState *statePtr = NULL;
char channelName[SOCK_CHAN_LENGTH];
const char *errorMsg = NULL;
TcpFdList *fds = NULL, *newfds;
/*
* Try to record and return the most meaningful error message, i.e. the
* one from the first socket that went the farthest before it failed.
*/
enum { LOOKUP, SOCKET, BIND, LISTEN } howfar = LOOKUP;
int my_errno = 0;
if (!TclCreateSocketAddress(interp, &addrlist, myHost, port, 1, &errorMsg)) {
my_errno = errno;
goto error;
}
for (addrPtr = addrlist; addrPtr != NULL; addrPtr = addrPtr->ai_next) {
sock = socket(addrPtr->ai_family, addrPtr->ai_socktype,
addrPtr->ai_protocol);
if (sock == -1) {
if (howfar < SOCKET) {
howfar = SOCKET;
my_errno = errno;
}
continue;
}
/*
* Set the close-on-exec flag so that the socket will not get
* inherited by child processes.
*/
fcntl(sock, F_SETFD, FD_CLOEXEC);
/*
* Set kernel space buffering
*/
TclSockMinimumBuffers(INT2PTR(sock), SOCKET_BUFSIZE);
/*
* Set up to reuse server addresses automatically and bind to the
* specified port.
*/
(void) setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
(char *) &reuseaddr, sizeof(reuseaddr));
/*
* Make sure we use the same port number when opening two server
* sockets for IPv4 and IPv6 on a random port.
*
* As sockaddr_in6 uses the same offset and size for the port member
* as sockaddr_in, we can handle both through the IPv4 API.
*/
if (port == 0 && chosenport != 0) {
((struct sockaddr_in *) addrPtr->ai_addr)->sin_port =
htons(chosenport);
}
#ifdef IPV6_V6ONLY
/* Missing on: Solaris 2.8 */
if (addrPtr->ai_family == AF_INET6) {
int v6only = 1;
(void) setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY,
&v6only, sizeof(v6only));
}
#endif /* IPV6_V6ONLY */
status = bind(sock, addrPtr->ai_addr, addrPtr->ai_addrlen);
if (status == -1) {
if (howfar < BIND) {
howfar = BIND;
my_errno = errno;
}
close(sock);
sock = -1;
continue;
}
if (port == 0 && chosenport == 0) {
address sockname;
socklen_t namelen = sizeof(sockname);
/*
* Synchronize port numbers when binding to port 0 of multiple
* addresses.
*/
if (getsockname(sock, &sockname.sa, &namelen) >= 0) {
chosenport = ntohs(sockname.sa4.sin_port);
}
}
status = listen(sock, SOMAXCONN);
if (status < 0) {
if (howfar < LISTEN) {
howfar = LISTEN;
my_errno = errno;
}
close(sock);
sock = -1;
continue;
}
if (statePtr == NULL) {
/*
* Allocate a new TcpState for this socket.
*/
statePtr = ckalloc(sizeof(TcpState));
memset(statePtr, 0, sizeof(TcpState));
statePtr->acceptProc = acceptProc;
statePtr->acceptProcData = acceptProcData;
sprintf(channelName, SOCK_TEMPLATE, (long) statePtr);
newfds = &statePtr->fds;
} else {
newfds = ckalloc(sizeof(TcpFdList));
memset(newfds, (int) 0, sizeof(TcpFdList));
fds->next = newfds;
}
newfds->fd = sock;
newfds->statePtr = statePtr;
fds = newfds;
/*
* Set up the callback mechanism for accepting connections from new
* clients.
*/
Tcl_CreateFileHandler(sock, TCL_READABLE, TcpAccept, fds);
}
error:
if (addrlist != NULL) {
freeaddrinfo(addrlist);
}
if (statePtr != NULL) {
statePtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
statePtr, 0);
return statePtr->channel;
}
if (interp != NULL) {
Tcl_Obj *errorObj = Tcl_NewStringObj("couldn't open socket: ", -1);
if (errorMsg == NULL) {
errno = my_errno;
Tcl_AppendToObj(errorObj, Tcl_PosixError(interp), -1);
} else {
Tcl_AppendToObj(errorObj, errorMsg, -1);
}
Tcl_SetObjResult(interp, errorObj);
}
if (sock != -1) {
close(sock);
}
return NULL;
}
static int
TeststringobjCmd(
ClientData clientData, /* Not used. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
Tcl_UniChar *unicode;
int varIndex, option, i, length;
#define MAX_STRINGS 11
const char *index, *string, *strings[MAX_STRINGS+1];
TestString *strPtr;
static const char *const options[] = {
"append", "appendstrings", "get", "get2", "length", "length2",
"set", "set2", "setlength", "maxchars", "getunicode",
"appendself", "appendself2", NULL
};
if (objc < 3) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objv[1], options, "option", 0, &option)
!= TCL_OK) {
return TCL_ERROR;
}
switch (option) {
case 0: /* append */
if (objc != 5) {
goto wrongNumArgs;
}
if (Tcl_GetIntFromObj(interp, objv[4], &length) != TCL_OK) {
return TCL_ERROR;
}
if (varPtr[varIndex] == NULL) {
SetVarToObj(varIndex, Tcl_NewObj());
}
/*
* If the object bound to variable "varIndex" is shared, we must
* "copy on write" and append to a copy of the object.
*/
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
string = Tcl_GetString(objv[3]);
Tcl_AppendToObj(varPtr[varIndex], string, length);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 1: /* appendstrings */
if (objc > (MAX_STRINGS+3)) {
goto wrongNumArgs;
}
if (varPtr[varIndex] == NULL) {
SetVarToObj(varIndex, Tcl_NewObj());
}
/*
* If the object bound to variable "varIndex" is shared, we must
* "copy on write" and append to a copy of the object.
*/
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
for (i = 3; i < objc; i++) {
strings[i-3] = Tcl_GetString(objv[i]);
}
for ( ; i < 12 + 3; i++) {
strings[i - 3] = NULL;
}
Tcl_AppendStringsToObj(varPtr[varIndex], strings[0], strings[1],
strings[2], strings[3], strings[4], strings[5],
strings[6], strings[7], strings[8], strings[9],
strings[10], strings[11]);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 2: /* get */
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 3: /* get2 */
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varIndex)) {
return TCL_ERROR;
}
string = Tcl_GetString(varPtr[varIndex]);
Tcl_AppendToObj(Tcl_GetObjResult(interp), string, -1);
break;
case 4: /* length */
if (objc != 3) {
goto wrongNumArgs;
}
Tcl_SetIntObj(Tcl_GetObjResult(interp), (varPtr[varIndex] != NULL)
? varPtr[varIndex]->length : -1);
break;
case 5: /* length2 */
if (objc != 3) {
goto wrongNumArgs;
}
if (varPtr[varIndex] != NULL) {
Tcl_ConvertToType(NULL, varPtr[varIndex],
Tcl_GetObjType("string"));
strPtr = (TestString *)
(varPtr[varIndex])->internalRep.otherValuePtr;
length = (int) strPtr->allocated;
} else {
length = -1;
}
Tcl_SetIntObj(Tcl_GetObjResult(interp), length);
break;
case 6: /* set */
if (objc != 4) {
goto wrongNumArgs;
}
/*
* If the object currently bound to the variable with index
* varIndex has ref count 1 (i.e. the object is unshared) we can
* modify that object directly. Otherwise, if RC>1 (i.e. the
* object is shared), we must create a new object to modify/set
* and decrement the old formerly-shared object's ref count. This
* is "copy on write".
*/
string = Tcl_GetStringFromObj(objv[3], &length);
if ((varPtr[varIndex] != NULL)
&& !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetStringObj(varPtr[varIndex], string, length);
} else {
SetVarToObj(varIndex, Tcl_NewStringObj(string, length));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 7: /* set2 */
if (objc != 4) {
goto wrongNumArgs;
}
SetVarToObj(varIndex, objv[3]);
break;
case 8: /* setlength */
if (objc != 4) {
goto wrongNumArgs;
}
if (Tcl_GetIntFromObj(interp, objv[3], &length) != TCL_OK) {
return TCL_ERROR;
}
if (varPtr[varIndex] != NULL) {
Tcl_SetObjLength(varPtr[varIndex], length);
}
break;
case 9: /* maxchars */
if (objc != 3) {
goto wrongNumArgs;
}
if (varPtr[varIndex] != NULL) {
Tcl_ConvertToType(NULL, varPtr[varIndex],
Tcl_GetObjType("string"));
strPtr = (TestString *)
(varPtr[varIndex])->internalRep.otherValuePtr;
length = strPtr->maxChars;
} else {
length = -1;
}
Tcl_SetIntObj(Tcl_GetObjResult(interp), length);
break;
case 10: /* getunicode */
if (objc != 3) {
goto wrongNumArgs;
}
Tcl_GetUnicodeFromObj(varPtr[varIndex], NULL);
break;
case 11: /* appendself */
if (objc != 4) {
goto wrongNumArgs;
}
if (varPtr[varIndex] == NULL) {
SetVarToObj(varIndex, Tcl_NewObj());
}
/*
* If the object bound to variable "varIndex" is shared, we must
* "copy on write" and append to a copy of the object.
*/
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
string = Tcl_GetStringFromObj(varPtr[varIndex], &length);
if (Tcl_GetIntFromObj(interp, objv[3], &i) != TCL_OK) {
return TCL_ERROR;
}
if ((i < 0) || (i > length)) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"index value out of range", -1));
return TCL_ERROR;
}
Tcl_AppendToObj(varPtr[varIndex], string + i, length - i);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 12: /* appendself2 */
if (objc != 4) {
goto wrongNumArgs;
}
if (varPtr[varIndex] == NULL) {
SetVarToObj(varIndex, Tcl_NewObj());
}
/*
* If the object bound to variable "varIndex" is shared, we must
* "copy on write" and append to a copy of the object.
*/
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
unicode = Tcl_GetUnicodeFromObj(varPtr[varIndex], &length);
if (Tcl_GetIntFromObj(interp, objv[3], &i) != TCL_OK) {
return TCL_ERROR;
}
if ((i < 0) || (i > length)) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"index value out of range", -1));
return TCL_ERROR;
}
Tcl_AppendUnicodeToObj(varPtr[varIndex], unicode + i, length - i);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
}
return TCL_OK;
}
int
TkOffsetParseProc(
ClientData clientData, /* not used */
Tcl_Interp *interp, /* Interpreter to send results back to */
Tk_Window tkwin, /* Window on same display as tile */
const char *value, /* Name of image */
char *widgRec, /* Widget structure record */
int offset) /* Offset of tile in record */
{
Tk_TSOffset *offsetPtr = (Tk_TSOffset *) (widgRec + offset);
Tk_TSOffset tsoffset;
const char *q, *p;
int result;
Tcl_Obj *msgObj;
if ((value == NULL) || (*value == 0)) {
tsoffset.flags = TK_OFFSET_CENTER|TK_OFFSET_MIDDLE;
goto goodTSOffset;
}
tsoffset.flags = 0;
p = value;
switch (value[0]) {
case '#':
if (PTR2INT(clientData) & TK_OFFSET_RELATIVE) {
tsoffset.flags = TK_OFFSET_RELATIVE;
p++;
break;
}
goto badTSOffset;
case 'e':
switch(value[1]) {
case '\0':
tsoffset.flags = TK_OFFSET_RIGHT|TK_OFFSET_MIDDLE;
goto goodTSOffset;
case 'n':
if (value[2]!='d' || value[3]!='\0') {
goto badTSOffset;
}
tsoffset.flags = INT_MAX;
goto goodTSOffset;
}
case 'w':
if (value[1] != '\0') {goto badTSOffset;}
tsoffset.flags = TK_OFFSET_LEFT|TK_OFFSET_MIDDLE;
goto goodTSOffset;
case 'n':
if ((value[1] != '\0') && (value[2] != '\0')) {
goto badTSOffset;
}
switch(value[1]) {
case '\0':
tsoffset.flags = TK_OFFSET_CENTER|TK_OFFSET_TOP;
goto goodTSOffset;
case 'w':
tsoffset.flags = TK_OFFSET_LEFT|TK_OFFSET_TOP;
goto goodTSOffset;
case 'e':
tsoffset.flags = TK_OFFSET_RIGHT|TK_OFFSET_TOP;
goto goodTSOffset;
}
goto badTSOffset;
case 's':
if ((value[1] != '\0') && (value[2] != '\0')) {
goto badTSOffset;
}
switch(value[1]) {
case '\0':
tsoffset.flags = TK_OFFSET_CENTER|TK_OFFSET_BOTTOM;
goto goodTSOffset;
case 'w':
tsoffset.flags = TK_OFFSET_LEFT|TK_OFFSET_BOTTOM;
goto goodTSOffset;
case 'e':
tsoffset.flags = TK_OFFSET_RIGHT|TK_OFFSET_BOTTOM;
goto goodTSOffset;
}
goto badTSOffset;
case 'c':
if (strncmp(value, "center", strlen(value)) != 0) {
goto badTSOffset;
}
tsoffset.flags = TK_OFFSET_CENTER|TK_OFFSET_MIDDLE;
goto goodTSOffset;
}
/*
* Check for an extra offset.
*/
q = strchr(p, ',');
if (q == NULL) {
if (PTR2INT(clientData) & TK_OFFSET_INDEX) {
if (Tcl_GetInt(interp, (char *) p, &tsoffset.flags) != TCL_OK) {
Tcl_ResetResult(interp);
goto badTSOffset;
}
tsoffset.flags |= TK_OFFSET_INDEX;
goto goodTSOffset;
}
goto badTSOffset;
}
*((char *) q) = 0;
result = Tk_GetPixels(interp, tkwin, (char *) p, &tsoffset.xoffset);
*((char *) q) = ',';
if (result != TCL_OK) {
return TCL_ERROR;
}
if (Tk_GetPixels(interp, tkwin, (char*)q+1, &tsoffset.yoffset) != TCL_OK) {
return TCL_ERROR;
}
/*
* Below is a hack to allow the stipple/tile offset to be stored in the
* internal tile structure. Most of the times, offsetPtr is a pointer to
* an already existing tile structure. However if this structure is not
* already created, we must do it with Tk_GetTile()!!!!
*/
goodTSOffset:
memcpy(offsetPtr, &tsoffset, sizeof(Tk_TSOffset));
return TCL_OK;
badTSOffset:
msgObj = Tcl_ObjPrintf("bad offset \"%s\": expected \"x,y\"", value);
if (PTR2INT(clientData) & TK_OFFSET_RELATIVE) {
Tcl_AppendToObj(msgObj, ", \"#x,y\"", -1);
}
if (PTR2INT(clientData) & TK_OFFSET_INDEX) {
Tcl_AppendToObj(msgObj, ", <index>", -1);
}
Tcl_AppendToObj(msgObj, ", n, ne, e, se, s, sw, w, nw, or center", -1);
Tcl_SetObjResult(interp, msgObj);
Tcl_SetErrorCode(interp, "TK", "VALUE", "OFFSET", NULL);
return TCL_ERROR;
}
static int
RectOvalToPostscript(
Tcl_Interp *interp, /* Interpreter for error reporting. */
Tk_Canvas canvas, /* Information about overall canvas. */
Tk_Item *itemPtr, /* Item for which Postscript is wanted. */
int prepass) /* 1 means this is a prepass to collect font
* information; 0 means final Postscript is
* being created. */
{
Tcl_Obj *pathObj, *psObj;
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr;
double y1, y2;
XColor *color;
XColor *fillColor;
Pixmap fillStipple;
Tk_State state = itemPtr->state;
Tcl_InterpState interpState;
y1 = Tk_CanvasPsY(canvas, rectOvalPtr->bbox[1]);
y2 = Tk_CanvasPsY(canvas, rectOvalPtr->bbox[3]);
/*
* Generate a string that creates a path for the rectangle or oval. This
* is the only part of the function's code that is type-specific.
*/
if (rectOvalPtr->header.typePtr == &tkRectangleType) {
pathObj = Tcl_ObjPrintf(
"%.15g %.15g moveto "
"%.15g 0 rlineto "
"0 %.15g rlineto "
"%.15g 0 rlineto "
"closepath\n",
rectOvalPtr->bbox[0], y1,
rectOvalPtr->bbox[2]-rectOvalPtr->bbox[0],
y2-y1,
rectOvalPtr->bbox[0]-rectOvalPtr->bbox[2]);
} else {
pathObj = Tcl_ObjPrintf(
"matrix currentmatrix\n"
"%.15g %.15g translate "
"%.15g %.15g scale "
"1 0 moveto 0 0 1 0 360 arc\n"
"setmatrix\n",
(rectOvalPtr->bbox[0] + rectOvalPtr->bbox[2])/2, (y1 + y2)/2,
(rectOvalPtr->bbox[2] - rectOvalPtr->bbox[0])/2, (y1 - y2)/2);
}
if (state == TK_STATE_NULL) {
state = Canvas(canvas)->canvas_state;
}
color = rectOvalPtr->outline.color;
fillColor = rectOvalPtr->fillColor;
fillStipple = rectOvalPtr->fillStipple;
if (Canvas(canvas)->currentItemPtr == itemPtr) {
if (rectOvalPtr->outline.activeColor!=NULL) {
color = rectOvalPtr->outline.activeColor;
}
if (rectOvalPtr->activeFillColor!=NULL) {
fillColor = rectOvalPtr->activeFillColor;
}
if (rectOvalPtr->activeFillStipple!=None) {
fillStipple = rectOvalPtr->activeFillStipple;
}
} else if (state == TK_STATE_DISABLED) {
if (rectOvalPtr->outline.disabledColor!=NULL) {
color = rectOvalPtr->outline.disabledColor;
}
if (rectOvalPtr->disabledFillColor!=NULL) {
fillColor = rectOvalPtr->disabledFillColor;
}
if (rectOvalPtr->disabledFillStipple!=None) {
fillStipple = rectOvalPtr->disabledFillStipple;
}
}
/*
* Make our working space.
*/
psObj = Tcl_NewObj();
interpState = Tcl_SaveInterpState(interp, TCL_OK);
/*
* First draw the filled area of the rectangle.
*/
if (fillColor != NULL) {
Tcl_AppendObjToObj(psObj, pathObj);
Tcl_ResetResult(interp);
if (Tk_CanvasPsColor(interp, canvas, fillColor) != TCL_OK) {
goto error;
}
Tcl_AppendObjToObj(psObj, Tcl_GetObjResult(interp));
if (fillStipple != None) {
Tcl_AppendToObj(psObj, "clip ", -1);
Tcl_ResetResult(interp);
if (Tk_CanvasPsStipple(interp, canvas, fillStipple) != TCL_OK) {
goto error;
}
Tcl_AppendObjToObj(psObj, Tcl_GetObjResult(interp));
if (color != NULL) {
Tcl_AppendToObj(psObj, "grestore gsave\n", -1);
}
} else {
Tcl_AppendToObj(psObj, "fill\n", -1);
}
}
/*
* Now draw the outline, if there is one.
*/
if (color != NULL) {
Tcl_AppendObjToObj(psObj, pathObj);
Tcl_AppendToObj(psObj, "0 setlinejoin 2 setlinecap\n", -1);
Tcl_ResetResult(interp);
if (Tk_CanvasPsOutline(canvas, itemPtr,
&rectOvalPtr->outline)!= TCL_OK) {
goto error;
}
Tcl_AppendObjToObj(psObj, Tcl_GetObjResult(interp));
}
/*
* Plug the accumulated postscript back into the result.
*/
(void) Tcl_RestoreInterpState(interp, interpState);
Tcl_AppendObjToObj(Tcl_GetObjResult(interp), psObj);
Tcl_DecrRefCount(psObj);
Tcl_DecrRefCount(pathObj);
return TCL_OK;
error:
Tcl_DiscardInterpState(interpState);
Tcl_DecrRefCount(psObj);
Tcl_DecrRefCount(pathObj);
return TCL_ERROR;
}
static int
TestindexobjCmd(
ClientData clientData, /* Not used. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
int allowAbbrev, index, index2, setError, i, result;
const char **argv;
static const char *const tablePtr[] = {"a", "b", "check", NULL};
/*
* Keep this structure declaration in sync with tclIndexObj.c
*/
struct IndexRep {
void *tablePtr; /* Pointer to the table of strings. */
int offset; /* Offset between table entries. */
int index; /* Selected index into table. */
};
struct IndexRep *indexRep;
if ((objc == 3) && (strcmp(Tcl_GetString(objv[1]),
"check") == 0)) {
/*
* This code checks to be sure that the results of Tcl_GetIndexFromObj
* are properly cached in the object and returned on subsequent
* lookups.
*/
if (Tcl_GetIntFromObj(interp, objv[2], &index2) != TCL_OK) {
return TCL_ERROR;
}
Tcl_GetIndexFromObj(NULL, objv[1], tablePtr, "token", 0, &index);
indexRep = (struct IndexRep *) objv[1]->internalRep.otherValuePtr;
indexRep->index = index2;
result = Tcl_GetIndexFromObj(NULL, objv[1],
tablePtr, "token", 0, &index);
if (result == TCL_OK) {
Tcl_SetIntObj(Tcl_GetObjResult(interp), index);
}
return result;
}
if (objc < 5) {
Tcl_AppendToObj(Tcl_GetObjResult(interp), "wrong # args", -1);
return TCL_ERROR;
}
if (Tcl_GetBooleanFromObj(interp, objv[1], &setError) != TCL_OK) {
return TCL_ERROR;
}
if (Tcl_GetBooleanFromObj(interp, objv[2], &allowAbbrev) != TCL_OK) {
return TCL_ERROR;
}
argv = (const char **) ckalloc((unsigned) ((objc-3) * sizeof(char *)));
for (i = 4; i < objc; i++) {
argv[i-4] = Tcl_GetString(objv[i]);
}
argv[objc-4] = NULL;
/*
* Tcl_GetIndexFromObj assumes that the table is statically-allocated so
* that its address is different for each index object. If we accidently
* allocate a table at the same address as that cached in the index
* object, clear out the object's cached state.
*/
if (objv[3]->typePtr != NULL
&& !strcmp("index", objv[3]->typePtr->name)) {
indexRep = (struct IndexRep *) objv[3]->internalRep.otherValuePtr;
if (indexRep->tablePtr == (void *) argv) {
objv[3]->typePtr->freeIntRepProc(objv[3]);
objv[3]->typePtr = NULL;
}
}
result = Tcl_GetIndexFromObj((setError? interp : NULL), objv[3],
argv, "token", (allowAbbrev? 0 : TCL_EXACT), &index);
ckfree((char *) argv);
if (result == TCL_OK) {
Tcl_SetIntObj(Tcl_GetObjResult(interp), index);
}
return result;
}
void
Tcl_MainEx(
int argc, /* Number of arguments. */
TCHAR **argv, /* Array of argument strings. */
Tcl_AppInitProc *appInitProc,
/* Application-specific initialization
* function to call after most initialization
* but before starting to execute commands. */
Tcl_Interp *interp)
{
Tcl_Obj *path, *resultPtr, *argvPtr, *appName;
const char *encodingName = NULL;
int code, exitCode = 0;
Tcl_MainLoopProc *mainLoopProc;
Tcl_Channel chan;
InteractiveState is;
TclpSetInitialEncodings();
TclpFindExecutable((const char *)argv[0]);
Tcl_InitMemory(interp);
is.interp = interp;
is.prompt = PROMPT_START;
is.commandPtr = Tcl_NewObj();
/*
* If the application has not already set a startup script, parse the
* first few command line arguments to determine the script path and
* encoding.
*/
if (NULL == Tcl_GetStartupScript(NULL)) {
/*
* Check whether first 3 args (argv[1] - argv[3]) look like
* -encoding ENCODING FILENAME
* or like
* FILENAME
*/
if ((argc > 3) && (0 == _tcscmp(TEXT("-encoding"), argv[1]))
&& ('-' != argv[3][0])) {
Tcl_Obj *value = NewNativeObj(argv[2], -1);
Tcl_SetStartupScript(NewNativeObj(argv[3], -1),
Tcl_GetString(value));
Tcl_DecrRefCount(value);
argc -= 3;
argv += 3;
} else if ((argc > 1) && ('-' != argv[1][0])) {
Tcl_SetStartupScript(NewNativeObj(argv[1], -1), NULL);
argc--;
argv++;
}
}
path = Tcl_GetStartupScript(&encodingName);
if (path == NULL) {
appName = NewNativeObj(argv[0], -1);
} else {
appName = path;
}
Tcl_SetVar2Ex(interp, "argv0", NULL, appName, TCL_GLOBAL_ONLY);
argc--;
argv++;
Tcl_SetVar2Ex(interp, "argc", NULL, Tcl_NewIntObj(argc), TCL_GLOBAL_ONLY);
argvPtr = Tcl_NewListObj(0, NULL);
while (argc--) {
Tcl_ListObjAppendElement(NULL, argvPtr, NewNativeObj(*argv++, -1));
}
Tcl_SetVar2Ex(interp, "argv", NULL, argvPtr, TCL_GLOBAL_ONLY);
/*
* Set the "tcl_interactive" variable.
*/
is.tty = isatty(0);
Tcl_SetVar2Ex(interp, "tcl_interactive", NULL,
Tcl_NewIntObj(!path && is.tty), TCL_GLOBAL_ONLY);
/*
* Invoke application-specific initialization.
*/
Tcl_Preserve(interp);
if (appInitProc(interp) != TCL_OK) {
chan = Tcl_GetStdChannel(TCL_STDERR);
if (chan) {
Tcl_WriteChars(chan,
"application-specific initialization failed: ", -1);
Tcl_WriteObj(chan, Tcl_GetObjResult(interp));
Tcl_WriteChars(chan, "\n", 1);
}
}
if (Tcl_InterpDeleted(interp)) {
goto done;
}
if (Tcl_LimitExceeded(interp)) {
goto done;
}
if (TclFullFinalizationRequested()) {
/*
* Arrange for final deletion of the main interp
*/
/* ARGH Munchhausen effect */
Tcl_CreateExitHandler(FreeMainInterp, interp);
}
/*
* Invoke the script specified on the command line, if any. Must fetch it
* again, as the appInitProc might have reset it.
*/
path = Tcl_GetStartupScript(&encodingName);
if (path != NULL) {
Tcl_ResetResult(interp);
code = Tcl_FSEvalFileEx(interp, path, encodingName);
if (code != TCL_OK) {
chan = Tcl_GetStdChannel(TCL_STDERR);
if (chan) {
Tcl_Obj *options = Tcl_GetReturnOptions(interp, code);
Tcl_Obj *keyPtr, *valuePtr;
TclNewLiteralStringObj(keyPtr, "-errorinfo");
Tcl_IncrRefCount(keyPtr);
Tcl_DictObjGet(NULL, options, keyPtr, &valuePtr);
Tcl_DecrRefCount(keyPtr);
if (valuePtr) {
Tcl_WriteObj(chan, valuePtr);
}
Tcl_WriteChars(chan, "\n", 1);
Tcl_DecrRefCount(options);
}
exitCode = 1;
}
goto done;
}
/*
* We're running interactively. Source a user-specific startup file if the
* application specified one and if the file exists.
*/
Tcl_SourceRCFile(interp);
if (Tcl_LimitExceeded(interp)) {
goto done;
}
/*
* Process commands from stdin until there's an end-of-file. Note that we
* need to fetch the standard channels again after every eval, since they
* may have been changed.
*/
Tcl_IncrRefCount(is.commandPtr);
/*
* Get a new value for tty if anyone writes to ::tcl_interactive
*/
Tcl_LinkVar(interp, "tcl_interactive", (char *) &is.tty, TCL_LINK_BOOLEAN);
is.input = Tcl_GetStdChannel(TCL_STDIN);
while ((is.input != NULL) && !Tcl_InterpDeleted(interp)) {
mainLoopProc = TclGetMainLoop();
if (mainLoopProc == NULL) {
int length;
if (is.tty) {
Prompt(interp, &is);
if (Tcl_InterpDeleted(interp)) {
break;
}
if (Tcl_LimitExceeded(interp)) {
break;
}
is.input = Tcl_GetStdChannel(TCL_STDIN);
if (is.input == NULL) {
break;
}
}
if (Tcl_IsShared(is.commandPtr)) {
Tcl_DecrRefCount(is.commandPtr);
is.commandPtr = Tcl_DuplicateObj(is.commandPtr);
Tcl_IncrRefCount(is.commandPtr);
}
length = Tcl_GetsObj(is.input, is.commandPtr);
if (length < 0) {
if (Tcl_InputBlocked(is.input)) {
/*
* This can only happen if stdin has been set to
* non-blocking. In that case cycle back and try again.
* This sets up a tight polling loop (since we have no
* event loop running). If this causes bad CPU hogging, we
* might try toggling the blocking on stdin instead.
*/
continue;
}
/*
* Either EOF, or an error on stdin; we're done
*/
break;
}
/*
* Add the newline removed by Tcl_GetsObj back to the string. Have
* to add it back before testing completeness, because it can make
* a difference. [Bug 1775878]
*/
if (Tcl_IsShared(is.commandPtr)) {
Tcl_DecrRefCount(is.commandPtr);
is.commandPtr = Tcl_DuplicateObj(is.commandPtr);
Tcl_IncrRefCount(is.commandPtr);
}
Tcl_AppendToObj(is.commandPtr, "\n", 1);
if (!TclObjCommandComplete(is.commandPtr)) {
is.prompt = PROMPT_CONTINUE;
continue;
}
is.prompt = PROMPT_START;
/*
* The final newline is syntactically redundant, and causes some
* error messages troubles deeper in, so lop it back off.
*/
Tcl_GetStringFromObj(is.commandPtr, &length);
Tcl_SetObjLength(is.commandPtr, --length);
code = Tcl_RecordAndEvalObj(interp, is.commandPtr,
TCL_EVAL_GLOBAL);
is.input = Tcl_GetStdChannel(TCL_STDIN);
Tcl_DecrRefCount(is.commandPtr);
is.commandPtr = Tcl_NewObj();
Tcl_IncrRefCount(is.commandPtr);
if (code != TCL_OK) {
chan = Tcl_GetStdChannel(TCL_STDERR);
if (chan) {
Tcl_WriteObj(chan, Tcl_GetObjResult(interp));
Tcl_WriteChars(chan, "\n", 1);
}
} else if (is.tty) {
resultPtr = Tcl_GetObjResult(interp);
Tcl_IncrRefCount(resultPtr);
Tcl_GetStringFromObj(resultPtr, &length);
chan = Tcl_GetStdChannel(TCL_STDOUT);
if ((length > 0) && chan) {
Tcl_WriteObj(chan, resultPtr);
Tcl_WriteChars(chan, "\n", 1);
}
Tcl_DecrRefCount(resultPtr);
}
} else { /* (mainLoopProc != NULL) */
/*
* If a main loop has been defined while running interactively, we
* want to start a fileevent based prompt by establishing a
* channel handler for stdin.
*/
if (is.input) {
if (is.tty) {
Prompt(interp, &is);
}
Tcl_CreateChannelHandler(is.input, TCL_READABLE,
StdinProc, &is);
}
mainLoopProc();
Tcl_SetMainLoop(NULL);
if (is.input) {
Tcl_DeleteChannelHandler(is.input, StdinProc, &is);
}
is.input = Tcl_GetStdChannel(TCL_STDIN);
}
/*
* This code here only for the (unsupported and deprecated) [checkmem]
* command.
*/
#ifdef TCL_MEM_DEBUG
if (tclMemDumpFileName != NULL) {
Tcl_SetMainLoop(NULL);
Tcl_DeleteInterp(interp);
}
#endif /* TCL_MEM_DEBUG */
}
done:
mainLoopProc = TclGetMainLoop();
if ((exitCode == 0) && mainLoopProc && !Tcl_LimitExceeded(interp)) {
/*
* If everything has gone OK so far, call the main loop proc, if it
* exists. Packages (like Tk) can set it to start processing events at
* this point.
*/
mainLoopProc();
Tcl_SetMainLoop(NULL);
}
if (is.commandPtr != NULL) {
Tcl_DecrRefCount(is.commandPtr);
}
/*
* Rather than calling exit, invoke the "exit" command so that users can
* replace "exit" with some other command to do additional cleanup on
* exit. The Tcl_EvalObjEx call should never return.
*/
if (!Tcl_InterpDeleted(interp) && !Tcl_LimitExceeded(interp)) {
Tcl_Obj *cmd = Tcl_ObjPrintf("exit %d", exitCode);
Tcl_IncrRefCount(cmd);
Tcl_EvalObjEx(interp, cmd, TCL_EVAL_GLOBAL);
Tcl_DecrRefCount(cmd);
}
/*
* If Tcl_EvalObjEx returns, trying to eval [exit], something unusual is
* happening. Maybe interp has been deleted; maybe [exit] was redefined,
* maybe we've blown up because of an exceeded limit. We still want to
* cleanup and exit.
*/
Tcl_Exit(exitCode);
}
/* ARGSUSED */
int
Tcl_OpenObjCmd(
ClientData notUsed, /* Not used. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
int pipeline, prot;
const char *modeString, *what;
Tcl_Channel chan;
if ((objc < 2) || (objc > 4)) {
Tcl_WrongNumArgs(interp, 1, objv, "fileName ?access? ?permissions?");
return TCL_ERROR;
}
prot = 0666;
if (objc == 2) {
modeString = "r";
} else {
modeString = TclGetString(objv[2]);
if (objc == 4) {
char *permString = TclGetString(objv[3]);
int code = TCL_ERROR;
int scanned = TclParseAllWhiteSpace(permString, -1);
/* Support legacy octal numbers */
if ((permString[scanned] == '0')
&& (permString[scanned+1] >= '0')
&& (permString[scanned+1] <= '7')) {
Tcl_Obj *permObj;
TclNewLiteralStringObj(permObj, "0o");
Tcl_AppendToObj(permObj, permString+scanned+1, -1);
code = TclGetIntFromObj(NULL, permObj, &prot);
Tcl_DecrRefCount(permObj);
}
if ((code == TCL_ERROR)
&& TclGetIntFromObj(interp, objv[3], &prot) != TCL_OK) {
return TCL_ERROR;
}
}
}
pipeline = 0;
what = TclGetString(objv[1]);
if (what[0] == '|') {
pipeline = 1;
}
/*
* Open the file or create a process pipeline.
*/
if (!pipeline) {
chan = Tcl_FSOpenFileChannel(interp, objv[1], modeString, prot);
} else {
int mode, seekFlag, cmdObjc, binary;
const char **cmdArgv;
if (Tcl_SplitList(interp, what+1, &cmdObjc, &cmdArgv) != TCL_OK) {
return TCL_ERROR;
}
mode = TclGetOpenModeEx(interp, modeString, &seekFlag, &binary);
if (mode == -1) {
chan = NULL;
} else {
int flags = TCL_STDERR | TCL_ENFORCE_MODE;
switch (mode & (O_RDONLY | O_WRONLY | O_RDWR)) {
case O_RDONLY:
flags |= TCL_STDOUT;
break;
case O_WRONLY:
flags |= TCL_STDIN;
break;
case O_RDWR:
flags |= (TCL_STDIN | TCL_STDOUT);
break;
default:
Tcl_Panic("Tcl_OpenCmd: invalid mode value");
break;
}
chan = Tcl_OpenCommandChannel(interp, cmdObjc, cmdArgv, flags);
if (binary && chan) {
Tcl_SetChannelOption(interp, chan, "-translation", "binary");
}
}
ckfree((char *) cmdArgv);
}
if (chan == NULL) {
return TCL_ERROR;
}
Tcl_RegisterChannel(interp, chan);
Tcl_AppendResult(interp, Tcl_GetChannelName(chan), NULL);
return TCL_OK;
}
static int
ValidateFormat(
Tcl_Interp *interp, /* Current interpreter. */
const char *format, /* The format string. */
int numVars, /* The number of variables passed to the scan
* command. */
int *totalSubs) /* The number of variables that will be
* required. */
{
int gotXpg, gotSequential, value, i, flags;
char *end;
Tcl_UniChar ch;
int objIndex, xpgSize, nspace = numVars;
int *nassign = TclStackAlloc(interp, nspace * sizeof(int));
char buf[TCL_UTF_MAX+1];
Tcl_Obj *errorMsg; /* Place to build an error messages. Note that
* these are messy operations because we do
* not want to use the formatting engine;
* we're inside there! */
/*
* Initialize an array that records the number of times a variable is
* assigned to by the format string. We use this to detect if a variable
* is multiply assigned or left unassigned.
*/
for (i = 0; i < nspace; i++) {
nassign[i] = 0;
}
xpgSize = objIndex = gotXpg = gotSequential = 0;
while (*format != '\0') {
format += Tcl_UtfToUniChar(format, &ch);
flags = 0;
if (ch != '%') {
continue;
}
format += Tcl_UtfToUniChar(format, &ch);
if (ch == '%') {
continue;
}
if (ch == '*') {
flags |= SCAN_SUPPRESS;
format += Tcl_UtfToUniChar(format, &ch);
goto xpgCheckDone;
}
if ((ch < 0x80) && isdigit(UCHAR(ch))) { /* INTL: "C" locale. */
/*
* Check for an XPG3-style %n$ specification. Note: there must
* not be a mixture of XPG3 specs and non-XPG3 specs in the same
* format string.
*/
value = strtoul(format-1, &end, 10); /* INTL: "C" locale. */
if (*end != '$') {
goto notXpg;
}
format = end+1;
format += Tcl_UtfToUniChar(format, &ch);
gotXpg = 1;
if (gotSequential) {
goto mixedXPG;
}
objIndex = value - 1;
if ((objIndex < 0) || (numVars && (objIndex >= numVars))) {
goto badIndex;
} else if (numVars == 0) {
/*
* In the case where no vars are specified, the user can
* specify %9999$ legally, so we have to consider special
* rules for growing the assign array. 'value' is guaranteed
* to be > 0.
*/
xpgSize = (xpgSize > value) ? xpgSize : value;
}
goto xpgCheckDone;
}
notXpg:
gotSequential = 1;
if (gotXpg) {
mixedXPG:
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"cannot mix \"%\" and \"%n$\" conversion specifiers",
-1));
Tcl_SetErrorCode(interp, "TCL", "FORMAT", "MIXEDSPECTYPES", NULL);
goto error;
}
xpgCheckDone:
/*
* Parse any width specifier.
*/
if ((ch < 0x80) && isdigit(UCHAR(ch))) { /* INTL: "C" locale. */
value = strtoul(format-1, (char **) &format, 10); /* INTL: "C" locale. */
flags |= SCAN_WIDTH;
format += Tcl_UtfToUniChar(format, &ch);
}
/*
* Handle any size specifier.
*/
switch (ch) {
case 'l':
if (*format == 'l') {
flags |= SCAN_BIG;
format += 1;
format += Tcl_UtfToUniChar(format, &ch);
break;
}
case 'L':
flags |= SCAN_LONGER;
case 'h':
format += Tcl_UtfToUniChar(format, &ch);
}
if (!(flags & SCAN_SUPPRESS) && numVars && (objIndex >= numVars)) {
goto badIndex;
}
/*
* Handle the various field types.
*/
switch (ch) {
case 'c':
if (flags & SCAN_WIDTH) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"field width may not be specified in %c conversion",
-1));
Tcl_SetErrorCode(interp, "TCL", "FORMAT", "BADWIDTH", NULL);
goto error;
}
/*
* Fall through!
*/
case 'n':
case 's':
if (flags & (SCAN_LONGER|SCAN_BIG)) {
invalidFieldSize:
buf[Tcl_UniCharToUtf(ch, buf)] = '\0';
errorMsg = Tcl_NewStringObj(
"field size modifier may not be specified in %", -1);
Tcl_AppendToObj(errorMsg, buf, -1);
Tcl_AppendToObj(errorMsg, " conversion", -1);
Tcl_SetObjResult(interp, errorMsg);
Tcl_SetErrorCode(interp, "TCL", "FORMAT", "BADSIZE", NULL);
goto error;
}
/*
* Fall through!
*/
case 'd':
case 'e':
case 'E':
case 'f':
case 'g':
case 'G':
case 'i':
case 'o':
case 'x':
case 'X':
case 'b':
break;
case 'u':
if (flags & SCAN_BIG) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"unsigned bignum scans are invalid", -1));
Tcl_SetErrorCode(interp, "TCL", "FORMAT", "BADUNSIGNED",NULL);
goto error;
}
break;
/*
* Bracket terms need special checking
*/
case '[':
if (flags & (SCAN_LONGER|SCAN_BIG)) {
goto invalidFieldSize;
}
if (*format == '\0') {
goto badSet;
}
format += Tcl_UtfToUniChar(format, &ch);
if (ch == '^') {
if (*format == '\0') {
goto badSet;
}
format += Tcl_UtfToUniChar(format, &ch);
}
if (ch == ']') {
if (*format == '\0') {
goto badSet;
}
format += Tcl_UtfToUniChar(format, &ch);
}
while (ch != ']') {
if (*format == '\0') {
goto badSet;
}
format += Tcl_UtfToUniChar(format, &ch);
}
break;
badSet:
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"unmatched [ in format string", -1));
Tcl_SetErrorCode(interp, "TCL", "FORMAT", "BRACKET", NULL);
goto error;
default:
buf[Tcl_UniCharToUtf(ch, buf)] = '\0';
errorMsg = Tcl_NewStringObj(
"bad scan conversion character \"", -1);
Tcl_AppendToObj(errorMsg, buf, -1);
Tcl_AppendToObj(errorMsg, "\"", -1);
Tcl_SetObjResult(interp, errorMsg);
Tcl_SetErrorCode(interp, "TCL", "FORMAT", "BADTYPE", NULL);
goto error;
}
if (!(flags & SCAN_SUPPRESS)) {
if (objIndex >= nspace) {
/*
* Expand the nassign buffer. If we are using XPG specifiers,
* make sure that we grow to a large enough size. xpgSize is
* guaranteed to be at least one larger than objIndex.
*/
value = nspace;
if (xpgSize) {
nspace = xpgSize;
} else {
nspace += 16; /* formerly STATIC_LIST_SIZE */
}
nassign = TclStackRealloc(interp, nassign,
nspace * sizeof(int));
for (i = value; i < nspace; i++) {
nassign[i] = 0;
}
}
nassign[objIndex]++;
objIndex++;
}
}
/*
* Verify that all of the variable were assigned exactly once.
*/
if (numVars == 0) {
if (xpgSize) {
numVars = xpgSize;
} else {
numVars = objIndex;
}
}
if (totalSubs) {
*totalSubs = numVars;
}
for (i = 0; i < numVars; i++) {
if (nassign[i] > 1) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"variable is assigned by multiple \"%n$\" conversion specifiers",
-1));
Tcl_SetErrorCode(interp, "TCL", "FORMAT", "POLYASSIGNED", NULL);
goto error;
} else if (!xpgSize && (nassign[i] == 0)) {
/*
* If the space is empty, and xpgSize is 0 (means XPG wasn't used,
* and/or numVars != 0), then too many vars were given
*/
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"variable is not assigned by any conversion specifiers",
-1));
Tcl_SetErrorCode(interp, "TCL", "FORMAT", "UNASSIGNED", NULL);
goto error;
}
}
TclStackFree(interp, nassign);
return TCL_OK;
badIndex:
if (gotXpg) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"\"%n$\" argument index out of range", -1));
Tcl_SetErrorCode(interp, "TCL", "FORMAT", "INDEXRANGE", NULL);
} else {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"different numbers of variable names and field specifiers",
-1));
Tcl_SetErrorCode(interp, "TCL", "FORMAT", "FIELDVARMISMATCH", NULL);
}
error:
TclStackFree(interp, nassign);
return TCL_ERROR;
}
static void
PrintUsage(
Tcl_Interp *interp, /* Place information in this interp's result
* area. */
const Tcl_ArgvInfo *argTable)
/* Array of command-specific argument
* descriptions. */
{
register const Tcl_ArgvInfo *infoPtr;
int width, numSpaces;
#define NUM_SPACES 20
static const char spaces[] = " ";
char tmp[TCL_DOUBLE_SPACE];
Tcl_Obj *msg;
/*
* First, compute the width of the widest option key, so that we can make
* everything line up.
*/
width = 4;
for (infoPtr = argTable; infoPtr->type != TCL_ARGV_END; infoPtr++) {
int length;
if (infoPtr->keyStr == NULL) {
continue;
}
length = strlen(infoPtr->keyStr);
if (length > width) {
width = length;
}
}
/*
* Now add the option information, with pretty-printing.
*/
msg = Tcl_NewStringObj("Command-specific options:", -1);
for (infoPtr = argTable; infoPtr->type != TCL_ARGV_END; infoPtr++) {
if ((infoPtr->type == TCL_ARGV_HELP) && (infoPtr->keyStr == NULL)) {
Tcl_AppendPrintfToObj(msg, "\n%s", infoPtr->helpStr);
continue;
}
Tcl_AppendPrintfToObj(msg, "\n %s:", infoPtr->keyStr);
numSpaces = width + 1 - strlen(infoPtr->keyStr);
while (numSpaces > 0) {
if (numSpaces >= NUM_SPACES) {
Tcl_AppendToObj(msg, spaces, NUM_SPACES);
} else {
Tcl_AppendToObj(msg, spaces, numSpaces);
}
numSpaces -= NUM_SPACES;
}
Tcl_AppendToObj(msg, infoPtr->helpStr, -1);
switch (infoPtr->type) {
case TCL_ARGV_INT:
Tcl_AppendPrintfToObj(msg, "\n\t\tDefault value: %d",
*((int *) infoPtr->dstPtr));
break;
case TCL_ARGV_FLOAT:
Tcl_AppendPrintfToObj(msg, "\n\t\tDefault value: %g",
*((double *) infoPtr->dstPtr));
sprintf(tmp, "%g", *((double *) infoPtr->dstPtr));
break;
case TCL_ARGV_STRING: {
char *string = *((char **) infoPtr->dstPtr);
if (string != NULL) {
Tcl_AppendPrintfToObj(msg, "\n\t\tDefault value: \"%s\"",
string);
}
break;
}
default:
break;
}
}
Tcl_SetObjResult(interp, msg);
}
static void
AppendSystemError(
Tcl_Interp *interp, /* Current interpreter. */
DWORD error) /* Result code from error. */
{
int length;
WCHAR *wMsgPtr, **wMsgPtrPtr = &wMsgPtr;
const char *msg;
char id[TCL_INTEGER_SPACE], msgBuf[24 + TCL_INTEGER_SPACE];
Tcl_DString ds;
Tcl_Obj *resultPtr = Tcl_GetObjResult(interp);
if (Tcl_IsShared(resultPtr)) {
resultPtr = Tcl_DuplicateObj(resultPtr);
}
length = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS
| FORMAT_MESSAGE_ALLOCATE_BUFFER, NULL, error,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (WCHAR *) wMsgPtrPtr,
0, NULL);
if (length == 0) {
char *msgPtr;
length = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS
| FORMAT_MESSAGE_ALLOCATE_BUFFER, NULL, error,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (char *) &msgPtr,
0, NULL);
if (length > 0) {
wMsgPtr = (WCHAR *) LocalAlloc(LPTR, (length + 1) * sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, msgPtr, length + 1, wMsgPtr,
length + 1);
LocalFree(msgPtr);
}
}
if (length == 0) {
if (error == ERROR_CALL_NOT_IMPLEMENTED) {
strcpy(msgBuf, "function not supported under Win32s");
} else {
sprintf(msgBuf, "unknown error: %ld", error);
}
msg = msgBuf;
} else {
Tcl_Encoding encoding;
char *msgPtr;
encoding = Tcl_GetEncoding(NULL, "unicode");
Tcl_ExternalToUtfDString(encoding, (char *) wMsgPtr, -1, &ds);
Tcl_FreeEncoding(encoding);
LocalFree(wMsgPtr);
msgPtr = Tcl_DStringValue(&ds);
length = Tcl_DStringLength(&ds);
/*
* Trim the trailing CR/LF from the system message.
*/
if (msgPtr[length-1] == '\n') {
--length;
}
if (msgPtr[length-1] == '\r') {
--length;
}
msgPtr[length] = 0;
msg = msgPtr;
}
sprintf(id, "%ld", error);
Tcl_SetErrorCode(interp, "WINDOWS", id, msg, NULL);
Tcl_AppendToObj(resultPtr, msg, length);
Tcl_SetObjResult(interp, resultPtr);
if (length != 0) {
Tcl_DStringFree(&ds);
}
}