1 |
/* $Header$ */
|
2 |
|
3 |
/*
|
4 |
* tkConsole.c --
|
5 |
*
|
6 |
* This file implements a Tcl console for systems that may not
|
7 |
* otherwise have access to a console. It uses the Text widget
|
8 |
* and provides special access via a console command.
|
9 |
*
|
10 |
* Copyright (c) 1995-1996 Sun Microsystems, Inc.
|
11 |
*
|
12 |
* See the file "license.terms" for information on usage and redistribution
|
13 |
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
14 |
*
|
15 |
* RCS: @(#) $Id: tkconsole.c,v 1.1.1.1 2001/06/13 04:58:57 dtashley Exp $
|
16 |
*/
|
17 |
|
18 |
#include "tk.h"
|
19 |
#include <string.h>
|
20 |
|
21 |
#include "tkInt.h"
|
22 |
|
23 |
/*
|
24 |
* A data structure of the following type holds information for each console
|
25 |
* which a handler (i.e. a Tcl command) has been defined for a particular
|
26 |
* top-level window.
|
27 |
*/
|
28 |
|
29 |
typedef struct ConsoleInfo {
|
30 |
Tcl_Interp *consoleInterp; /* Interpreter for the console. */
|
31 |
Tcl_Interp *interp; /* Interpreter to send console commands. */
|
32 |
} ConsoleInfo;
|
33 |
|
34 |
typedef struct ThreadSpecificData {
|
35 |
Tcl_Interp *gStdoutInterp;
|
36 |
} ThreadSpecificData;
|
37 |
static Tcl_ThreadDataKey dataKey;
|
38 |
static int consoleInitialized = 0;
|
39 |
|
40 |
/*
|
41 |
* The Mutex below is used to lock access to the consoleIntialized flag
|
42 |
*/
|
43 |
|
44 |
TCL_DECLARE_MUTEX(consoleMutex)
|
45 |
|
46 |
/*
|
47 |
* Forward declarations for procedures defined later in this file:
|
48 |
*
|
49 |
* The first three will be used in the tk app shells...
|
50 |
*/
|
51 |
|
52 |
void TkConsolePrint _ANSI_ARGS_((Tcl_Interp *interp,
|
53 |
int devId, char *buffer, long size));
|
54 |
|
55 |
static int ConsoleCmd _ANSI_ARGS_((ClientData clientData,
|
56 |
Tcl_Interp *interp, int argc, char **argv));
|
57 |
static void ConsoleDeleteProc _ANSI_ARGS_((ClientData clientData));
|
58 |
static void ConsoleEventProc _ANSI_ARGS_((ClientData clientData,
|
59 |
XEvent *eventPtr));
|
60 |
static int InterpreterCmd _ANSI_ARGS_((ClientData clientData,
|
61 |
Tcl_Interp *interp, int argc, char **argv));
|
62 |
|
63 |
static int ConsoleInput _ANSI_ARGS_((ClientData instanceData,
|
64 |
char *buf, int toRead, int *errorCode));
|
65 |
static int ConsoleOutput _ANSI_ARGS_((ClientData instanceData,
|
66 |
char *buf, int toWrite, int *errorCode));
|
67 |
static int ConsoleClose _ANSI_ARGS_((ClientData instanceData,
|
68 |
Tcl_Interp *interp));
|
69 |
static void ConsoleWatch _ANSI_ARGS_((ClientData instanceData,
|
70 |
int mask));
|
71 |
static int ConsoleHandle _ANSI_ARGS_((ClientData instanceData,
|
72 |
int direction, ClientData *handlePtr));
|
73 |
|
74 |
/*
|
75 |
* This structure describes the channel type structure for file based IO:
|
76 |
*/
|
77 |
|
78 |
static Tcl_ChannelType consoleChannelType = {
|
79 |
"console", /* Type name. */
|
80 |
NULL, /* Always non-blocking.*/
|
81 |
ConsoleClose, /* Close proc. */
|
82 |
ConsoleInput, /* Input proc. */
|
83 |
ConsoleOutput, /* Output proc. */
|
84 |
NULL, /* Seek proc. */
|
85 |
NULL, /* Set option proc. */
|
86 |
NULL, /* Get option proc. */
|
87 |
ConsoleWatch, /* Watch for events on console. */
|
88 |
ConsoleHandle, /* Get a handle from the device. */
|
89 |
};
|
90 |
|
91 |
|
92 |
#ifdef __WIN32__
|
93 |
|
94 |
#include <windows.h>
|
95 |
|
96 |
/*
|
97 |
*----------------------------------------------------------------------
|
98 |
*
|
99 |
* ShouldUseConsoleChannel
|
100 |
*
|
101 |
* Check to see if console window should be used for a given
|
102 |
* standard channel
|
103 |
*
|
104 |
* Results:
|
105 |
* None.
|
106 |
*
|
107 |
* Side effects:
|
108 |
* Creates the console channel and installs it as the standard
|
109 |
* channels.
|
110 |
*
|
111 |
*----------------------------------------------------------------------
|
112 |
*/
|
113 |
static int ShouldUseConsoleChannel(type)
|
114 |
int type;
|
115 |
{
|
116 |
DWORD handleId; /* Standard handle to retrieve. */
|
117 |
DCB dcb;
|
118 |
DWORD consoleParams;
|
119 |
DWORD fileType;
|
120 |
int mode;
|
121 |
char *bufMode;
|
122 |
HANDLE handle;
|
123 |
|
124 |
switch (type) {
|
125 |
case TCL_STDIN:
|
126 |
handleId = STD_INPUT_HANDLE;
|
127 |
mode = TCL_READABLE;
|
128 |
bufMode = "line";
|
129 |
break;
|
130 |
case TCL_STDOUT:
|
131 |
handleId = STD_OUTPUT_HANDLE;
|
132 |
mode = TCL_WRITABLE;
|
133 |
bufMode = "line";
|
134 |
break;
|
135 |
case TCL_STDERR:
|
136 |
handleId = STD_ERROR_HANDLE;
|
137 |
mode = TCL_WRITABLE;
|
138 |
bufMode = "none";
|
139 |
break;
|
140 |
default:
|
141 |
return 0;
|
142 |
break;
|
143 |
}
|
144 |
|
145 |
handle = GetStdHandle(handleId);
|
146 |
|
147 |
/*
|
148 |
* Note that we need to check for 0 because Windows will return 0 if this
|
149 |
* is not a console mode application, even though this is not a valid
|
150 |
* handle.
|
151 |
*/
|
152 |
|
153 |
if ((handle == INVALID_HANDLE_VALUE) || (handle == 0)) {
|
154 |
return 1;
|
155 |
}
|
156 |
fileType = GetFileType(handle);
|
157 |
|
158 |
/*
|
159 |
* If the file is a character device, we need to try to figure out
|
160 |
* whether it is a serial port, a console, or something else. We
|
161 |
* test for the console case first because this is more common.
|
162 |
*/
|
163 |
|
164 |
if (fileType == FILE_TYPE_CHAR) {
|
165 |
dcb.DCBlength = sizeof( DCB ) ;
|
166 |
if (!GetConsoleMode(handle, &consoleParams) &&
|
167 |
!GetCommState(handle, &dcb)) {
|
168 |
/*
|
169 |
* Don't use a CHAR type channel for stdio, otherwise Tk
|
170 |
* runs into trouble with the MS DevStudio debugger.
|
171 |
*/
|
172 |
|
173 |
return 1;
|
174 |
}
|
175 |
} else if (fileType == FILE_TYPE_UNKNOWN) {
|
176 |
return 1;
|
177 |
} else if (Tcl_GetStdChannel(type) == NULL) {
|
178 |
return 1;
|
179 |
}
|
180 |
|
181 |
return 0;
|
182 |
}
|
183 |
#else
|
184 |
/*
|
185 |
* Mac should always use a console channel, Unix should if it's trying to
|
186 |
*/
|
187 |
|
188 |
#define ShouldUseConsoleChannel(chan) (1)
|
189 |
#endif
|
190 |
|
191 |
/*
|
192 |
*----------------------------------------------------------------------
|
193 |
*
|
194 |
* Tk_InitConsoleChannels --
|
195 |
*
|
196 |
* Create the console channels and install them as the standard
|
197 |
* channels. All I/O will be discarded until TkConsoleInit is
|
198 |
* called to attach the console to a text widget.
|
199 |
*
|
200 |
* Results:
|
201 |
* None.
|
202 |
*
|
203 |
* Side effects:
|
204 |
* Creates the console channel and installs it as the standard
|
205 |
* channels.
|
206 |
*
|
207 |
*----------------------------------------------------------------------
|
208 |
*/
|
209 |
|
210 |
void
|
211 |
Tk_InitConsoleChannels(interp)
|
212 |
Tcl_Interp *interp;
|
213 |
{
|
214 |
Tcl_Channel consoleChannel;
|
215 |
|
216 |
/*
|
217 |
* Ensure that we are getting the matching version of Tcl. This is
|
218 |
* really only an issue when Tk is loaded dynamically.
|
219 |
*/
|
220 |
|
221 |
if (Tcl_InitStubs(interp, TCL_VERSION, 1) == NULL) {
|
222 |
return;
|
223 |
}
|
224 |
|
225 |
Tcl_MutexLock(&consoleMutex);
|
226 |
if (!consoleInitialized) {
|
227 |
|
228 |
consoleInitialized = 1;
|
229 |
|
230 |
/*
|
231 |
* check for STDIN, otherwise create it
|
232 |
*
|
233 |
* Don't do this check on the Mac, because it is hard to prevent
|
234 |
* callbacks from the SIOUX layer from opening stdout & stdin, but
|
235 |
* we don't want to use the SIOUX console. Since the console is not
|
236 |
* actually created till something is written to the channel, it is
|
237 |
* okay to just ignore it here.
|
238 |
*
|
239 |
* This is still a bit of a hack, however, and should be cleaned up
|
240 |
* when we have a better abstraction for the console.
|
241 |
*/
|
242 |
|
243 |
if (ShouldUseConsoleChannel(TCL_STDIN)) {
|
244 |
consoleChannel = Tcl_CreateChannel(&consoleChannelType, "console0",
|
245 |
(ClientData) TCL_STDIN, TCL_READABLE);
|
246 |
if (consoleChannel != NULL) {
|
247 |
Tcl_SetChannelOption(NULL, consoleChannel,
|
248 |
"-translation", "lf");
|
249 |
Tcl_SetChannelOption(NULL, consoleChannel,
|
250 |
"-buffering", "none");
|
251 |
Tcl_SetChannelOption(NULL, consoleChannel,
|
252 |
"-encoding", "utf-8");
|
253 |
}
|
254 |
Tcl_SetStdChannel(consoleChannel, TCL_STDIN);
|
255 |
}
|
256 |
|
257 |
/*
|
258 |
* check for STDOUT, otherwise create it
|
259 |
*/
|
260 |
|
261 |
if (ShouldUseConsoleChannel(TCL_STDOUT)) {
|
262 |
consoleChannel = Tcl_CreateChannel(&consoleChannelType, "console1",
|
263 |
(ClientData) TCL_STDOUT, TCL_WRITABLE);
|
264 |
if (consoleChannel != NULL) {
|
265 |
Tcl_SetChannelOption(NULL, consoleChannel,
|
266 |
"-translation", "lf");
|
267 |
Tcl_SetChannelOption(NULL, consoleChannel,
|
268 |
"-buffering", "none");
|
269 |
Tcl_SetChannelOption(NULL, consoleChannel,
|
270 |
"-encoding", "utf-8");
|
271 |
}
|
272 |
Tcl_SetStdChannel(consoleChannel, TCL_STDOUT);
|
273 |
}
|
274 |
|
275 |
/*
|
276 |
* check for STDERR, otherwise create it
|
277 |
*/
|
278 |
|
279 |
if (ShouldUseConsoleChannel(TCL_STDERR)) {
|
280 |
consoleChannel = Tcl_CreateChannel(&consoleChannelType, "console2",
|
281 |
(ClientData) TCL_STDERR, TCL_WRITABLE);
|
282 |
if (consoleChannel != NULL) {
|
283 |
Tcl_SetChannelOption(NULL, consoleChannel,
|
284 |
"-translation", "lf");
|
285 |
Tcl_SetChannelOption(NULL, consoleChannel,
|
286 |
"-buffering", "none");
|
287 |
Tcl_SetChannelOption(NULL, consoleChannel,
|
288 |
"-encoding", "utf-8");
|
289 |
}
|
290 |
Tcl_SetStdChannel(consoleChannel, TCL_STDERR);
|
291 |
}
|
292 |
}
|
293 |
Tcl_MutexUnlock(&consoleMutex);
|
294 |
}
|
295 |
|
296 |
/*
|
297 |
*----------------------------------------------------------------------
|
298 |
*
|
299 |
* Tk_CreateConsoleWindow --
|
300 |
*
|
301 |
* Initialize the console. This code actually creates a new
|
302 |
* application and associated interpreter. This effectivly hides
|
303 |
* the implementation from the main application.
|
304 |
*
|
305 |
* Results:
|
306 |
* None.
|
307 |
*
|
308 |
* Side effects:
|
309 |
* A new console it created.
|
310 |
*
|
311 |
*----------------------------------------------------------------------
|
312 |
*/
|
313 |
|
314 |
int
|
315 |
Tk_CreateConsoleWindow(interp)
|
316 |
Tcl_Interp *interp; /* Interpreter to use for prompting. */
|
317 |
{
|
318 |
Tcl_Interp *consoleInterp;
|
319 |
ConsoleInfo *info;
|
320 |
Tk_Window mainWindow = Tk_MainWindow(interp);
|
321 |
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
|
322 |
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
|
323 |
#ifdef MAC_TCL
|
324 |
static char initCmd[] = "source -rsrc {Console}";
|
325 |
#else
|
326 |
static char initCmd[] = "source $tk_library/console.tcl";
|
327 |
#endif
|
328 |
|
329 |
consoleInterp = Tcl_CreateInterp();
|
330 |
if (consoleInterp == NULL) {
|
331 |
goto error;
|
332 |
}
|
333 |
|
334 |
/*
|
335 |
* Initialized Tcl and Tk.
|
336 |
*/
|
337 |
|
338 |
if (Tcl_Init(consoleInterp) != TCL_OK) {
|
339 |
goto error;
|
340 |
}
|
341 |
if (Tk_Init(consoleInterp) != TCL_OK) {
|
342 |
goto error;
|
343 |
}
|
344 |
tsdPtr->gStdoutInterp = interp;
|
345 |
|
346 |
/*
|
347 |
* Add console commands to the interp
|
348 |
*/
|
349 |
info = (ConsoleInfo *) ckalloc(sizeof(ConsoleInfo));
|
350 |
info->interp = interp;
|
351 |
info->consoleInterp = consoleInterp;
|
352 |
Tcl_CreateCommand(interp, "console", ConsoleCmd, (ClientData) info,
|
353 |
(Tcl_CmdDeleteProc *) ConsoleDeleteProc);
|
354 |
Tcl_CreateCommand(consoleInterp, "consoleinterp", InterpreterCmd,
|
355 |
(ClientData) info, (Tcl_CmdDeleteProc *) NULL);
|
356 |
|
357 |
Tk_CreateEventHandler(mainWindow, StructureNotifyMask, ConsoleEventProc,
|
358 |
(ClientData) info);
|
359 |
|
360 |
Tcl_Preserve((ClientData) consoleInterp);
|
361 |
if (Tcl_Eval(consoleInterp, initCmd) == TCL_ERROR) {
|
362 |
/* goto error; -- no problem for now... */
|
363 |
printf("Eval error: %s", consoleInterp->result);
|
364 |
}
|
365 |
Tcl_Release((ClientData) consoleInterp);
|
366 |
return TCL_OK;
|
367 |
|
368 |
error:
|
369 |
if (consoleInterp != NULL) {
|
370 |
Tcl_DeleteInterp(consoleInterp);
|
371 |
}
|
372 |
return TCL_ERROR;
|
373 |
}
|
374 |
|
375 |
/*
|
376 |
*----------------------------------------------------------------------
|
377 |
*
|
378 |
* ConsoleOutput--
|
379 |
*
|
380 |
* Writes the given output on the IO channel. Returns count of how
|
381 |
* many characters were actually written, and an error indication.
|
382 |
*
|
383 |
* Results:
|
384 |
* A count of how many characters were written is returned and an
|
385 |
* error indication is returned in an output argument.
|
386 |
*
|
387 |
* Side effects:
|
388 |
* Writes output on the actual channel.
|
389 |
*
|
390 |
*----------------------------------------------------------------------
|
391 |
*/
|
392 |
|
393 |
static int
|
394 |
ConsoleOutput(instanceData, buf, toWrite, errorCode)
|
395 |
ClientData instanceData; /* Indicates which device to use. */
|
396 |
char *buf; /* The data buffer. */
|
397 |
int toWrite; /* How many bytes to write? */
|
398 |
int *errorCode; /* Where to store error code. */
|
399 |
{
|
400 |
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
|
401 |
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
|
402 |
|
403 |
*errorCode = 0;
|
404 |
Tcl_SetErrno(0);
|
405 |
|
406 |
if (tsdPtr->gStdoutInterp != NULL) {
|
407 |
TkConsolePrint(tsdPtr->gStdoutInterp, (int) instanceData, buf,
|
408 |
toWrite);
|
409 |
}
|
410 |
|
411 |
return toWrite;
|
412 |
}
|
413 |
|
414 |
/*
|
415 |
*----------------------------------------------------------------------
|
416 |
*
|
417 |
* ConsoleInput --
|
418 |
*
|
419 |
* Read input from the console. Not currently implemented.
|
420 |
*
|
421 |
* Results:
|
422 |
* Always returns EOF.
|
423 |
*
|
424 |
* Side effects:
|
425 |
* None.
|
426 |
*
|
427 |
*----------------------------------------------------------------------
|
428 |
*/
|
429 |
|
430 |
/* ARGSUSED */
|
431 |
static int
|
432 |
ConsoleInput(instanceData, buf, bufSize, errorCode)
|
433 |
ClientData instanceData; /* Unused. */
|
434 |
char *buf; /* Where to store data read. */
|
435 |
int bufSize; /* How much space is available
|
436 |
* in the buffer? */
|
437 |
int *errorCode; /* Where to store error code. */
|
438 |
{
|
439 |
return 0; /* Always return EOF. */
|
440 |
}
|
441 |
|
442 |
/*
|
443 |
*----------------------------------------------------------------------
|
444 |
*
|
445 |
* ConsoleClose --
|
446 |
*
|
447 |
* Closes the IO channel.
|
448 |
*
|
449 |
* Results:
|
450 |
* Always returns 0 (success).
|
451 |
*
|
452 |
* Side effects:
|
453 |
* Frees the dummy file associated with the channel.
|
454 |
*
|
455 |
*----------------------------------------------------------------------
|
456 |
*/
|
457 |
|
458 |
/* ARGSUSED */
|
459 |
static int
|
460 |
ConsoleClose(instanceData, interp)
|
461 |
ClientData instanceData; /* Unused. */
|
462 |
Tcl_Interp *interp; /* Unused. */
|
463 |
{
|
464 |
return 0;
|
465 |
}
|
466 |
|
467 |
/*
|
468 |
*----------------------------------------------------------------------
|
469 |
*
|
470 |
* ConsoleWatch --
|
471 |
*
|
472 |
* Called by the notifier to set up the console device so that
|
473 |
* events will be noticed. Since there are no events on the
|
474 |
* console, this routine just returns without doing anything.
|
475 |
*
|
476 |
* Results:
|
477 |
* None.
|
478 |
*
|
479 |
* Side effects:
|
480 |
* None.
|
481 |
*
|
482 |
*----------------------------------------------------------------------
|
483 |
*/
|
484 |
|
485 |
/* ARGSUSED */
|
486 |
static void
|
487 |
ConsoleWatch(instanceData, mask)
|
488 |
ClientData instanceData; /* Device ID for the channel. */
|
489 |
int mask; /* OR-ed combination of
|
490 |
* TCL_READABLE, TCL_WRITABLE and
|
491 |
* TCL_EXCEPTION, for the events
|
492 |
* we are interested in. */
|
493 |
{
|
494 |
}
|
495 |
|
496 |
/*
|
497 |
*----------------------------------------------------------------------
|
498 |
*
|
499 |
* ConsoleHandle --
|
500 |
*
|
501 |
* Invoked by the generic IO layer to get a handle from a channel.
|
502 |
* Because console channels are not devices, this function always
|
503 |
* fails.
|
504 |
*
|
505 |
* Results:
|
506 |
* Always returns TCL_ERROR.
|
507 |
*
|
508 |
* Side effects:
|
509 |
* None.
|
510 |
*
|
511 |
*----------------------------------------------------------------------
|
512 |
*/
|
513 |
|
514 |
/* ARGSUSED */
|
515 |
static int
|
516 |
ConsoleHandle(instanceData, direction, handlePtr)
|
517 |
ClientData instanceData; /* Device ID for the channel. */
|
518 |
int direction; /* TCL_READABLE or TCL_WRITABLE to indicate
|
519 |
* which direction of the channel is being
|
520 |
* requested. */
|
521 |
ClientData *handlePtr; /* Where to store handle */
|
522 |
{
|
523 |
return TCL_ERROR;
|
524 |
}
|
525 |
|
526 |
/*
|
527 |
*----------------------------------------------------------------------
|
528 |
*
|
529 |
* ConsoleCmd --
|
530 |
*
|
531 |
* The console command implements a Tcl interface to the various console
|
532 |
* options.
|
533 |
*
|
534 |
* Results:
|
535 |
* None.
|
536 |
*
|
537 |
* Side effects:
|
538 |
* None.
|
539 |
*
|
540 |
*----------------------------------------------------------------------
|
541 |
*/
|
542 |
|
543 |
static int
|
544 |
ConsoleCmd(clientData, interp, argc, argv)
|
545 |
ClientData clientData; /* Not used. */
|
546 |
Tcl_Interp *interp; /* Current interpreter. */
|
547 |
int argc; /* Number of arguments. */
|
548 |
char **argv; /* Argument strings. */
|
549 |
{
|
550 |
ConsoleInfo *info = (ConsoleInfo *) clientData;
|
551 |
char c;
|
552 |
size_t length;
|
553 |
int result;
|
554 |
Tcl_Interp *consoleInterp;
|
555 |
Tcl_DString dString;
|
556 |
|
557 |
if (argc < 2) {
|
558 |
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
559 |
" option ?arg arg ...?\"", (char *) NULL);
|
560 |
return TCL_ERROR;
|
561 |
}
|
562 |
|
563 |
c = argv[1][0];
|
564 |
length = strlen(argv[1]);
|
565 |
result = TCL_OK;
|
566 |
consoleInterp = info->consoleInterp;
|
567 |
Tcl_Preserve((ClientData) consoleInterp);
|
568 |
Tcl_DStringInit(&dString);
|
569 |
|
570 |
if ((c == 't') && (strncmp(argv[1], "title", length)) == 0) {
|
571 |
Tcl_DStringAppend(&dString, "wm title . ", -1);
|
572 |
if (argc == 3) {
|
573 |
Tcl_DStringAppendElement(&dString, argv[2]);
|
574 |
}
|
575 |
Tcl_Eval(consoleInterp, Tcl_DStringValue(&dString));
|
576 |
} else if ((c == 'h') && (strncmp(argv[1], "hide", length)) == 0) {
|
577 |
Tcl_DStringAppend(&dString, "wm withdraw . ", -1);
|
578 |
Tcl_Eval(consoleInterp, Tcl_DStringValue(&dString));
|
579 |
} else if ((c == 's') && (strncmp(argv[1], "show", length)) == 0) {
|
580 |
Tcl_DStringAppend(&dString, "wm deiconify . ", -1);
|
581 |
Tcl_Eval(consoleInterp, Tcl_DStringValue(&dString));
|
582 |
} else if ((c == 'e') && (strncmp(argv[1], "eval", length)) == 0) {
|
583 |
if (argc == 3) {
|
584 |
result = Tcl_Eval(consoleInterp, argv[2]);
|
585 |
Tcl_AppendResult(interp, Tcl_GetStringResult(consoleInterp),
|
586 |
(char *) NULL);
|
587 |
} else {
|
588 |
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
589 |
" eval command\"", (char *) NULL);
|
590 |
return TCL_ERROR;
|
591 |
}
|
592 |
} else {
|
593 |
Tcl_AppendResult(interp, "bad option \"", argv[1],
|
594 |
"\": should be hide, show, or title",
|
595 |
(char *) NULL);
|
596 |
result = TCL_ERROR;
|
597 |
}
|
598 |
Tcl_DStringFree(&dString);
|
599 |
Tcl_Release((ClientData) consoleInterp);
|
600 |
return result;
|
601 |
}
|
602 |
|
603 |
/*
|
604 |
*----------------------------------------------------------------------
|
605 |
*
|
606 |
* InterpreterCmd --
|
607 |
*
|
608 |
* This command allows the console interp to communicate with the
|
609 |
* main interpreter.
|
610 |
*
|
611 |
* Results:
|
612 |
* None.
|
613 |
*
|
614 |
* Side effects:
|
615 |
* None.
|
616 |
*
|
617 |
*----------------------------------------------------------------------
|
618 |
*/
|
619 |
|
620 |
static int
|
621 |
InterpreterCmd(clientData, interp, argc, argv)
|
622 |
ClientData clientData; /* Not used. */
|
623 |
Tcl_Interp *interp; /* Current interpreter. */
|
624 |
int argc; /* Number of arguments. */
|
625 |
char **argv; /* Argument strings. */
|
626 |
{
|
627 |
ConsoleInfo *info = (ConsoleInfo *) clientData;
|
628 |
char c;
|
629 |
size_t length;
|
630 |
int result;
|
631 |
Tcl_Interp *otherInterp;
|
632 |
|
633 |
if (argc < 2) {
|
634 |
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
635 |
" option ?arg arg ...?\"", (char *) NULL);
|
636 |
return TCL_ERROR;
|
637 |
}
|
638 |
|
639 |
c = argv[1][0];
|
640 |
length = strlen(argv[1]);
|
641 |
otherInterp = info->interp;
|
642 |
Tcl_Preserve((ClientData) otherInterp);
|
643 |
if ((c == 'e') && (strncmp(argv[1], "eval", length)) == 0) {
|
644 |
result = Tcl_GlobalEval(otherInterp, argv[2]);
|
645 |
Tcl_AppendResult(interp, otherInterp->result, (char *) NULL);
|
646 |
} else if ((c == 'r') && (strncmp(argv[1], "record", length)) == 0) {
|
647 |
Tcl_RecordAndEval(otherInterp, argv[2], TCL_EVAL_GLOBAL);
|
648 |
result = TCL_OK;
|
649 |
Tcl_ResetResult(interp);
|
650 |
Tcl_AppendResult(interp, otherInterp->result, (char *) NULL);
|
651 |
} else {
|
652 |
Tcl_AppendResult(interp, "bad option \"", argv[1],
|
653 |
"\": should be eval or record",
|
654 |
(char *) NULL);
|
655 |
result = TCL_ERROR;
|
656 |
}
|
657 |
Tcl_Release((ClientData) otherInterp);
|
658 |
return result;
|
659 |
}
|
660 |
|
661 |
/*
|
662 |
*----------------------------------------------------------------------
|
663 |
*
|
664 |
* ConsoleDeleteProc --
|
665 |
*
|
666 |
* If the console command is deleted we destroy the console window
|
667 |
* and all associated data structures.
|
668 |
*
|
669 |
* Results:
|
670 |
* None.
|
671 |
*
|
672 |
* Side effects:
|
673 |
* A new console it created.
|
674 |
*
|
675 |
*----------------------------------------------------------------------
|
676 |
*/
|
677 |
|
678 |
static void
|
679 |
ConsoleDeleteProc(clientData)
|
680 |
ClientData clientData;
|
681 |
{
|
682 |
ConsoleInfo *info = (ConsoleInfo *) clientData;
|
683 |
|
684 |
Tcl_DeleteInterp(info->consoleInterp);
|
685 |
info->consoleInterp = NULL;
|
686 |
}
|
687 |
|
688 |
/*
|
689 |
*----------------------------------------------------------------------
|
690 |
*
|
691 |
* ConsoleEventProc --
|
692 |
*
|
693 |
* This event procedure is registered on the main window of the
|
694 |
* slave interpreter. If the user or a running script causes the
|
695 |
* main window to be destroyed, then we need to inform the console
|
696 |
* interpreter by invoking "tkConsoleExit".
|
697 |
*
|
698 |
* Results:
|
699 |
* None.
|
700 |
*
|
701 |
* Side effects:
|
702 |
* Invokes the "tkConsoleExit" procedure in the console interp.
|
703 |
*
|
704 |
*----------------------------------------------------------------------
|
705 |
*/
|
706 |
|
707 |
static void
|
708 |
ConsoleEventProc(clientData, eventPtr)
|
709 |
ClientData clientData;
|
710 |
XEvent *eventPtr;
|
711 |
{
|
712 |
ConsoleInfo *info = (ConsoleInfo *) clientData;
|
713 |
Tcl_Interp *consoleInterp;
|
714 |
Tcl_DString dString;
|
715 |
|
716 |
if (eventPtr->type == DestroyNotify) {
|
717 |
|
718 |
Tcl_DStringInit(&dString);
|
719 |
|
720 |
consoleInterp = info->consoleInterp;
|
721 |
|
722 |
/*
|
723 |
* It is possible that the console interpreter itself has
|
724 |
* already been deleted. In that case the consoleInterp
|
725 |
* field will be set to NULL. If the interpreter is already
|
726 |
* gone, we do not have to do any work here.
|
727 |
*/
|
728 |
|
729 |
if (consoleInterp == (Tcl_Interp *) NULL) {
|
730 |
return;
|
731 |
}
|
732 |
Tcl_Preserve((ClientData) consoleInterp);
|
733 |
Tcl_DStringAppend(&dString, "tkConsoleExit", -1);
|
734 |
Tcl_Eval(consoleInterp, Tcl_DStringValue(&dString));
|
735 |
Tcl_DStringFree(&dString);
|
736 |
Tcl_Release((ClientData) consoleInterp);
|
737 |
}
|
738 |
}
|
739 |
|
740 |
/*
|
741 |
*----------------------------------------------------------------------
|
742 |
*
|
743 |
* TkConsolePrint --
|
744 |
*
|
745 |
* Prints to the give text to the console. Given the main interp
|
746 |
* this functions find the appropiate console interp and forwards
|
747 |
* the text to be added to that console.
|
748 |
*
|
749 |
* Results:
|
750 |
* None.
|
751 |
*
|
752 |
* Side effects:
|
753 |
* None.
|
754 |
*
|
755 |
*----------------------------------------------------------------------
|
756 |
*/
|
757 |
|
758 |
void
|
759 |
TkConsolePrint(interp, devId, buffer, size)
|
760 |
Tcl_Interp *interp; /* Main interpreter. */
|
761 |
int devId; /* TCL_STDOUT for stdout, TCL_STDERR for
|
762 |
* stderr. */
|
763 |
char *buffer; /* Text buffer. */
|
764 |
long size; /* Size of text buffer. */
|
765 |
{
|
766 |
Tcl_DString command, output;
|
767 |
Tcl_CmdInfo cmdInfo;
|
768 |
char *cmd;
|
769 |
ConsoleInfo *info;
|
770 |
Tcl_Interp *consoleInterp;
|
771 |
int result;
|
772 |
|
773 |
if (interp == NULL) {
|
774 |
return;
|
775 |
}
|
776 |
|
777 |
if (devId == TCL_STDERR) {
|
778 |
cmd = "tkConsoleOutput stderr ";
|
779 |
} else {
|
780 |
cmd = "tkConsoleOutput stdout ";
|
781 |
}
|
782 |
|
783 |
result = Tcl_GetCommandInfo(interp, "console", &cmdInfo);
|
784 |
if (result == 0) {
|
785 |
return;
|
786 |
}
|
787 |
info = (ConsoleInfo *) cmdInfo.clientData;
|
788 |
|
789 |
Tcl_DStringInit(&output);
|
790 |
Tcl_DStringAppend(&output, buffer, size);
|
791 |
|
792 |
Tcl_DStringInit(&command);
|
793 |
Tcl_DStringAppend(&command, cmd, (int) strlen(cmd));
|
794 |
Tcl_DStringAppendElement(&command, output.string);
|
795 |
|
796 |
consoleInterp = info->consoleInterp;
|
797 |
Tcl_Preserve((ClientData) consoleInterp);
|
798 |
Tcl_Eval(consoleInterp, command.string);
|
799 |
Tcl_Release((ClientData) consoleInterp);
|
800 |
|
801 |
Tcl_DStringFree(&command);
|
802 |
Tcl_DStringFree(&output);
|
803 |
}
|
804 |
|
805 |
/* End of tkconsole.c */
|