ClientData
TclNativeCreateNativeRep(
Tcl_Obj *pathPtr)
{
char *nativePathPtr;
const char *str;
Tcl_DString ds;
Tcl_Obj *validPathPtr;
size_t len;
if (TclFSCwdIsNative()) {
/*
* The cwd is native, which means we can use the translated path
* without worrying about normalization (this will also usually be
* shorter so the utf-to-external conversion will be somewhat faster).
*/
validPathPtr = Tcl_FSGetTranslatedPath(NULL, pathPtr);
if (validPathPtr == NULL) {
return NULL;
}
} else {
/*
* Make sure the normalized path is set.
*/
validPathPtr = Tcl_FSGetNormalizedPath(NULL, pathPtr);
if (validPathPtr == NULL) {
return NULL;
}
Tcl_IncrRefCount(validPathPtr);
}
str = TclGetString(validPathPtr);
len = validPathPtr->length;
Tcl_UtfToExternalDString(NULL, str, len, &ds);
len = Tcl_DStringLength(&ds) + sizeof(char);
if (strlen(Tcl_DStringValue(&ds)) < len - sizeof(char)) {
/* See bug [3118489]: NUL in filenames */
Tcl_DecrRefCount(validPathPtr);
Tcl_DStringFree(&ds);
return NULL;
}
Tcl_DecrRefCount(validPathPtr);
nativePathPtr = ckalloc(len);
memcpy(nativePathPtr, Tcl_DStringValue(&ds), (size_t) len);
Tcl_DStringFree(&ds);
return nativePathPtr;
}
ClientData
TclNativeCreateNativeRep(
Tcl_Obj *pathPtr)
{
char *nativePathPtr;
Tcl_DString ds;
Tcl_Obj *validPathPtr;
int len;
char *str;
if (TclFSCwdIsNative()) {
/*
* The cwd is native, which means we can use the translated path
* without worrying about normalization (this will also usually be
* shorter so the utf-to-external conversion will be somewhat faster).
*/
validPathPtr = Tcl_FSGetTranslatedPath(NULL, pathPtr);
if (validPathPtr == NULL) {
return NULL;
}
} else {
/*
* Make sure the normalized path is set.
*/
validPathPtr = Tcl_FSGetNormalizedPath(NULL, pathPtr);
if (validPathPtr == NULL) {
return NULL;
}
Tcl_IncrRefCount(validPathPtr);
}
str = Tcl_GetStringFromObj(validPathPtr, &len);
Tcl_UtfToExternalDString(NULL, str, len, &ds);
len = Tcl_DStringLength(&ds) + sizeof(char);
Tcl_DecrRefCount(validPathPtr);
nativePathPtr = ckalloc((unsigned) len);
memcpy((void*)nativePathPtr, (void*)Tcl_DStringValue(&ds), (size_t) len);
Tcl_DStringFree(&ds);
return (ClientData)nativePathPtr;
}
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, *LObj;
int commandLen;
char *commandStr;
const char *encodingName = NULL;
int code, exitCode = 0, isL = 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 initial args (argv[1] and beyond) look like
* -encoding ENCODING FILENAME
* or like
* [-opt1] [-opt2] ... [-optn] FILENAME
*/
/* Create argv list obj for L. */
L->global->tclsh_argc = 1;
L->global->tclsh_argv = Tcl_NewObj();
Tcl_ListObjAppendElement(NULL, L->global->tclsh_argv,
NewNativeObj(argv[0], -1));
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) {
/* Pass over all options to look for a file name. */
int i;
Tcl_Obj *argObj;
for (i = 1; i < argc; ++i) {
argObj = NewNativeObj(argv[i], -1);
Tcl_ListObjAppendElement(NULL, L->global->tclsh_argv, argObj);
++L->global->tclsh_argc;
if ('-' != argv[i][0]) {
Tcl_SetStartupScript(argObj, NULL);
argc -= i;
argv += i;
break;
} else if (!_tcscmp(argv[i], TEXT("--version")) ||
!_tcscmp(argv[i], TEXT("-version"))) {
if (strlen(L_VER_TAG)) {
printf("L version is %s %s for %s\n",
L_VER_TAG, L_VER_UTC, L_VER_PLATFORM);
} else {
printf("L version is %s for %s\n",
L_VER_UTC, L_VER_PLATFORM);
}
printf("Built by: %s\n", L_VER_USER);
printf("Built in: %s\n", L_VER_PWD);
printf("Built on: %s\n", L_VER_BUILD_TIME);
exit(0);
}
}
}
}
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);
L->global->script_argc = argc;
argvPtr = Tcl_NewListObj(0, NULL);
while (argc--) {
Tcl_ListObjAppendElement(NULL, argvPtr, NewNativeObj(*argv++, -1));
}
Tcl_SetVar2Ex(interp, "argv", NULL, argvPtr, TCL_GLOBAL_ONLY);
L->global->script_argv = argvPtr;
Tcl_IncrRefCount(argvPtr);
/*
* 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) {
int argc, i;
char *av0path;
Tcl_Obj **argvObjs, *pathObj;
/*
* Set L->global->forceL if argv[0] is "L", or "-L" or "--L" was given
* as a cmd-line option. This causes Tcl_FSEvalFileEx() to wrap the
* input file in a #lang L regardless of its extension.
*/
if (L->global->tclsh_argv) {
Tcl_ListObjGetElements(interp, L->global->tclsh_argv, &argc,
&argvObjs);
pathObj = Tcl_FSGetNormalizedPath(interp, argvObjs[0]);
av0path = Tcl_GetString(pathObj);
if (av0path) {
L->global->forceL = (!strcmp(av0path+strlen(av0path)-2, "/L"));
}
for (i = 1; i < argc; ++i) {
if (!strcmp(Tcl_GetString(argvObjs[i]), "--L") ||
!strcmp(Tcl_GetString(argvObjs[i]), "-L")) {
L->global->forceL = 1;
}
}
}
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, "L", (char *) &isL, TCL_LINK_BOOLEAN);
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;
}
/*
* Check for the #lang comments and sub them out for
* meaningful commands.
*/
commandStr = Tcl_GetStringFromObj(is.commandPtr, &commandLen);
if (!isL && strncasecmp(commandStr, "#lang l", 7) == 0) {
Tcl_SetStringObj(is.commandPtr, "set ::L 1", -1);
} else if (isL && strncasecmp(commandStr, "#lang tcl", 9) == 0) {
Tcl_SetStringObj(is.commandPtr, "set('::L',0);", -1);
}
/*
* 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;
if (isL) {
LObj = Tcl_NewStringObj("L {", -1);
Tcl_AppendObjToObj(LObj, is.commandPtr);
if (commandStr[commandLen-1] != ';') {
Tcl_AppendToObj(LObj, ";", -1);
}
Tcl_AppendToObj(LObj, "}\n", -1);
Tcl_DecrRefCount(is.commandPtr);
is.commandPtr = LObj;
Tcl_IncrRefCount(is.commandPtr);
}
/*
* 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);
}
