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1 | // |
2 | // $Header$ | |
3 | // | |
4 | // SWIG file for building expectk | |
5 | // Dave Beazley | |
6 | // March 18, 1996 | |
7 | // | |
8 | /* Revision History | |
9 | * $Log$ | |
10 | * Revision 1.1 2002/04/29 19:56:56 RD | |
11 | * Since I have made several changes to SWIG over the years to accomodate | |
12 | * special cases and other things in wxPython, and since I plan on making | |
13 | * several more, I've decided to put the SWIG sources in wxPython's CVS | |
14 | * instead of relying on maintaining patches. This effectivly becomes a | |
15 | * fork of an obsolete version of SWIG, :-( but since SWIG 1.3 still | |
16 | * doesn't have some things I rely on in 1.1, not to mention that my | |
17 | * custom patches would all have to be redone, I felt that this is the | |
18 | * easier road to take. | |
19 | * | |
20 | * Revision 1.2 1999/11/05 21:45:14 beazley | |
21 | * Minor Changes | |
22 | * | |
23 | * Revision 1.1.1.1 1999/02/28 02:00:55 beazley | |
24 | * Swig1.1 | |
25 | * | |
26 | * Revision 1.1 1996/05/22 19:47:45 beazley | |
27 | * Initial revision | |
28 | * | |
29 | */ | |
30 | ||
31 | ||
32 | #ifdef AUTODOC | |
33 | %subsection "expectk.i" | |
34 | %text %{ | |
35 | This module provides a main() function for building an extended version of | |
36 | expectk. It has been tested with Expect 5.19, but may need modification | |
37 | for newer versions. | |
38 | %} | |
39 | #endif | |
40 | ||
41 | %{ | |
42 | ||
43 | /* exp_main_tk.c - main for expectk | |
44 | ||
45 | This is "main.c" from the Tk distribution with some minor modifications to | |
46 | support Expect. | |
47 | ||
48 | Don Libes, NIST, 12/19/92 | |
49 | ||
50 | */ | |
51 | ||
52 | ||
53 | /* | |
54 | * main.c -- | |
55 | * | |
56 | * This file contains the main program for "wish", a windowing | |
57 | * shell based on Tk and Tcl. It also provides a template that | |
58 | * can be used as the basis for main programs for other Tk | |
59 | * applications. | |
60 | * | |
61 | * Copyright (c) 1990-1993 The Regents of the University of California. | |
62 | * All rights reserved. | |
63 | * | |
64 | * Permission is hereby granted, without written agreement and without | |
65 | * license or royalty fees, to use, copy, modify, and distribute this | |
66 | * software and its documentation for any purpose, provided that the | |
67 | * above copyright notice and the following two paragraphs appear in | |
68 | * all copies of this software. | |
69 | * | |
70 | * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR | |
71 | * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT | |
72 | * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF | |
73 | * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
74 | * | |
75 | * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, | |
76 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY | |
77 | * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS | |
78 | * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO | |
79 | * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. | |
80 | */ | |
81 | ||
82 | /*#include "tkConfig.h"*/ | |
83 | /*#include "tkInt.h"*/ | |
84 | #include <tk.h> | |
85 | #include "expect_tcl.h" | |
86 | #include "Dbg.h" | |
87 | #include "string.h" | |
88 | ||
89 | #ifdef TK_EXTENDED | |
90 | # include "tclExtend.h" | |
91 | #endif | |
92 | ||
93 | /* | |
94 | * Global variables used by the main program: | |
95 | */ | |
96 | ||
97 | static Tk_Window mainWindow; /* The main window for the application. If | |
98 | * NULL then the application no longer | |
99 | * exists. */ | |
100 | static Tcl_Interp *interp; /* Interpreter for this application. */ | |
101 | #if 0 | |
102 | char *tcl_RcFileName = NULL; /* Name of a user-specific startup script | |
103 | * to source if the application is being run | |
104 | * interactively (e.g. "~/.wishrc"). Set | |
105 | * by Tcl_AppInit. NULL means don't source | |
106 | * anything ever. */ | |
107 | #endif | |
108 | static Tcl_DString command; /* Used to assemble lines of terminal input | |
109 | * into Tcl commands. */ | |
110 | static int tty; /* Non-zero means standard input is a | |
111 | * terminal-like device. Zero means it's | |
112 | * a file. */ | |
113 | static char normalExitCmd[] = "exit"; | |
114 | static char errorExitCmd[] = "exit 1"; | |
115 | ||
116 | /* | |
117 | * Command-line options: | |
118 | */ | |
119 | ||
120 | int synchronize = 0; | |
121 | char *fileName = NULL; | |
122 | char *name = NULL; | |
123 | char *display = NULL; | |
124 | char *geometry = NULL; | |
125 | ||
126 | /* for Expect */ | |
127 | int my_rc = 1; | |
128 | int sys_rc = 1; | |
129 | int optcmd_eval(); | |
130 | int dashdash; /* not used, but Tk's arg parser requires a placeholder */ | |
131 | #ifdef TCL_DEBUGGER | |
132 | int optcmd_debug(); | |
133 | #endif | |
134 | ||
135 | Tk_ArgvInfo argTable[] = { | |
136 | {"-file", TK_ARGV_STRING, (char *) NULL, (char *) &fileName, | |
137 | "File from which to read commands"}, | |
138 | {"-geometry", TK_ARGV_STRING, (char *) NULL, (char *) &geometry, | |
139 | "Initial geometry for window"}, | |
140 | {"-display", TK_ARGV_STRING, (char *) NULL, (char *) &display, | |
141 | "Display to use"}, | |
142 | {"-name", TK_ARGV_STRING, (char *) NULL, (char *) &name, | |
143 | "Name to use for application"}, | |
144 | {"-sync", TK_ARGV_CONSTANT, (char *) 1, (char *) &synchronize, | |
145 | "Use synchronous mode for display server"}, | |
146 | ||
147 | /* for Expect */ | |
148 | {"-buffer", TK_ARGV_STRING, (char *) 1, (char *) &exp_buffer_command_input, | |
149 | "Buffer command input"}, | |
150 | {"-command", TK_ARGV_GENFUNC, (char *) optcmd_eval, (char *)0, | |
151 | "Command(s) to execute immediately"}, | |
152 | {"-diag", TK_ARGV_CONSTANT, (char *) 1, (char *) &exp_is_debugging, | |
153 | "Enable diagnostics"}, | |
154 | {"--", TK_ARGV_REST, (char *)NULL, (char *)&dashdash, | |
155 | "End of options"}, | |
156 | #if TCL_DEBUGGER | |
157 | {"-Debug", TK_ARGV_GENFUNC, (char *) optcmd_debug, (char *)0, | |
158 | "Enable debugger"}, | |
159 | #endif | |
160 | {"-interactive", TK_ARGV_CONSTANT, (char *) 1, (char *) &exp_interactive, | |
161 | "Interactive mode"}, | |
162 | {"-norc", TK_ARGV_CONSTANT, (char *) 0, (char *) &my_rc, | |
163 | "Don't read ~/.expect.rc"}, | |
164 | {"-NORC", TK_ARGV_CONSTANT, (char *) 0, (char *) &sys_rc, | |
165 | "Don't read system-wide expect.rc"}, | |
166 | {(char *) NULL, TK_ARGV_END, (char *) NULL, (char *) NULL, | |
167 | (char *) NULL} | |
168 | }; | |
169 | ||
170 | #ifdef TCL_DEBUGGER | |
171 | /*ARGSUSED*/ | |
172 | int | |
173 | optcmd_debug(dst,interp,key,argc,argv) | |
174 | char *dst; | |
175 | Tcl_Interp *interp; | |
176 | char *key; | |
177 | int argc; | |
178 | char **argv; | |
179 | { | |
180 | int i; | |
181 | ||
182 | if (argc == 0) { | |
183 | strcpy(interp->result,"-Debug flag needs 1 or 0 argument"); | |
184 | return -1; | |
185 | } | |
186 | ||
187 | if (Tcl_GetInt(interp,argv[0],&i) != TCL_OK) { | |
188 | return -1; | |
189 | } | |
190 | ||
191 | if (i) { | |
192 | Dbg_On(interp,0); | |
193 | } | |
194 | ||
195 | argc--; | |
196 | for (i=0;i<argc;i++) { | |
197 | argv[i] = argv[i+1]; | |
198 | } | |
199 | ||
200 | return argc; | |
201 | } | |
202 | #endif /*TCL_DEBUGGER*/ | |
203 | ||
204 | /*ARGSUSED*/ | |
205 | int | |
206 | optcmd_eval(dst,interp,key,argc,argv) | |
207 | char *dst; | |
208 | Tcl_Interp *interp; | |
209 | char *key; | |
210 | int argc; | |
211 | char **argv; | |
212 | { | |
213 | int i; | |
214 | int rc; | |
215 | ||
216 | exp_cmdlinecmds = 1; | |
217 | ||
218 | rc = Tcl_Eval(interp,argv[0]); | |
219 | if (rc == TCL_ERROR) return -1; | |
220 | ||
221 | argc--; | |
222 | for (i=0;i<argc;i++) { | |
223 | argv[i] = argv[i+1]; | |
224 | } | |
225 | ||
226 | return argc; | |
227 | } | |
228 | ||
229 | /* | |
230 | * Declaration for Tcl command procedure to create demo widget. This | |
231 | * procedure is only invoked if SQUARE_DEMO is defined. | |
232 | */ | |
233 | ||
234 | extern int SquareCmd _ANSI_ARGS_((ClientData clientData, | |
235 | Tcl_Interp *interp, int argc, char *argv[])); | |
236 | ||
237 | /* | |
238 | * Forward declarations for procedures defined later in this file: | |
239 | */ | |
240 | ||
241 | static void Prompt _ANSI_ARGS_((Tcl_Interp *interp, int partial)); | |
242 | static void StdinProc _ANSI_ARGS_((ClientData clientData, | |
243 | int mask)); | |
244 | \f | |
245 | /* | |
246 | *---------------------------------------------------------------------- | |
247 | * | |
248 | * main -- | |
249 | * | |
250 | * Main program for Wish. | |
251 | * | |
252 | * Results: | |
253 | * None. This procedure never returns (it exits the process when | |
254 | * it's done | |
255 | * | |
256 | * Side effects: | |
257 | * This procedure initializes the wish world and then starts | |
258 | * interpreting commands; almost anything could happen, depending | |
259 | * on the script being interpreted. | |
260 | * | |
261 | *---------------------------------------------------------------------- | |
262 | */ | |
263 | ||
264 | int | |
265 | main(argc, argv) | |
266 | int argc; /* Number of arguments. */ | |
267 | char **argv; /* Array of argument strings. */ | |
268 | { | |
269 | char *args, *p, *msg, *class; | |
270 | char buf[20]; | |
271 | int code; | |
272 | int SWIG_init(Tcl_Interp *); | |
273 | extern char *exp_argv0; | |
274 | int used_argv1_for_filename = 0; /* added for Expect - DEL */ | |
275 | ||
276 | #ifdef TK_EXTENDED | |
277 | tk_mainInterp = interp = Tcl_CreateExtendedInterp(); | |
278 | #else | |
279 | interp = Tcl_CreateInterp(); | |
280 | #endif | |
281 | #ifdef TCL_MEM_DEBUG | |
282 | Tcl_InitMemory(interp); | |
283 | #endif | |
284 | ||
285 | if (Exp_Init(interp) == TCL_ERROR) { | |
286 | fprintf(stderr,"Exp_Init failed: %s\n",interp->result); | |
287 | return 1; | |
288 | } | |
289 | ||
290 | /* Add SWIG Extension */ | |
291 | ||
292 | if (SWIG_init(interp) == TCL_ERROR) { | |
293 | fprintf(stderr,"Unable to initialize user-extensions : %s\n", interp->result); | |
294 | return 1; | |
295 | } | |
296 | exp_argv0 = argv[0]; | |
297 | ||
298 | #ifdef TCL_DEBUGGER | |
299 | Dbg_ArgcArgv(argc,argv,1); | |
300 | #endif | |
301 | ||
302 | /* | |
303 | * Parse command-line arguments. | |
304 | */ | |
305 | ||
306 | if (Tk_ParseArgv(interp, (Tk_Window) NULL, &argc, argv, argTable, 0) | |
307 | != TCL_OK) { | |
308 | fprintf(stderr, "%s\n", interp->result); | |
309 | exit(1); | |
310 | } | |
311 | ||
312 | if (!fileName) { /* added for Expect - DEL */ | |
313 | fileName = argv[1]; | |
314 | used_argv1_for_filename = 1; | |
315 | } | |
316 | ||
317 | if (name == NULL) { | |
318 | if (fileName != NULL) { | |
319 | p = fileName; | |
320 | } else { | |
321 | p = argv[0]; | |
322 | } | |
323 | name = strrchr(p, '/'); | |
324 | if (name != NULL) { | |
325 | name++; | |
326 | } else { | |
327 | name = p; | |
328 | } | |
329 | } | |
330 | ||
331 | /* if user hasn't explicitly requested we be interactive */ | |
332 | /* look for a file or some other source of commands */ | |
333 | if (fileName && !exp_interactive) { | |
334 | if (0 == strcmp(fileName,"-")) { | |
335 | exp_cmdfile = stdin; | |
336 | } else if (exp_buffer_command_input) { | |
337 | if (NULL == (exp_cmdfile = fopen(fileName,"r"))) { | |
338 | perror(fileName); | |
339 | exp_exit(interp,1); | |
340 | } else { | |
341 | exp_close_on_exec(fileno(exp_cmdfile)); | |
342 | } | |
343 | } else { | |
344 | exp_cmdfilename = fileName; | |
345 | } | |
346 | } else if (!exp_cmdlinecmds) { | |
347 | /* no other source of commands, force interactive */ | |
348 | exp_interactive = 1; | |
349 | } | |
350 | ||
351 | /* | |
352 | * If a display was specified, put it into the DISPLAY | |
353 | * environment variable so that it will be available for | |
354 | * any sub-processes created by us. | |
355 | */ | |
356 | ||
357 | if (display != NULL) { | |
358 | Tcl_SetVar2(interp, "env", "DISPLAY", display, TCL_GLOBAL_ONLY); | |
359 | } | |
360 | ||
361 | /* | |
362 | * Initialize the Tk application. If a -name option was provided, | |
363 | * use it; otherwise, if a file name was provided, use the last | |
364 | * element of its path as the name of the application; otherwise | |
365 | * use the last element of the program name. For the application's | |
366 | * class, capitalize the first letter of the name. | |
367 | */ | |
368 | ||
369 | #if TK_MAJOR_VERSION >= 4 | |
370 | class = (char *) ckalloc((unsigned) (strlen(name) + 1)); | |
371 | strcpy(class, name); | |
372 | class[0] = toupper((unsigned char) class[0]); | |
373 | mainWindow = Tk_CreateMainWindow(interp, display, name, class); | |
374 | #else | |
375 | # if TK_MAJOR_VERSION == 3 && TK_MINOR_VERSION < 4 | |
376 | mainWindow = Tk_CreateMainWindow(interp, display, name); | |
377 | # else | |
378 | mainWindow = Tk_CreateMainWindow(interp, display, name, "Tk"); | |
379 | # endif | |
380 | #endif | |
381 | ||
382 | if (mainWindow == NULL) { | |
383 | fprintf(stderr, "%s\n", interp->result); | |
384 | exit(1); | |
385 | } | |
386 | #if TK_MAJOR_VERSION == 3 && TK_MINOR_VERSION < 4 | |
387 | Tk_SetClass(mainWindow, "Tk"); | |
388 | #endif | |
389 | if (synchronize) { | |
390 | XSynchronize(Tk_Display(mainWindow), True); | |
391 | } | |
392 | ||
393 | #if TK_MAJOR_VERSION < 4 | |
394 | Tk_GeometryRequest(mainWindow, 200, 200); | |
395 | #endif | |
396 | ||
397 | /* | |
398 | * Make command-line arguments available in the Tcl variables "argc" | |
399 | * and "argv". Also set the "geometry" variable from the geometry | |
400 | * specified on the command line. | |
401 | */ | |
402 | ||
403 | if (used_argv1_for_filename) { /* added for Expect - DEL */ | |
404 | argv++; | |
405 | argc--; | |
406 | /* if no script name, use interpreter name */ | |
407 | if (!argv[0] && !fileName) argv[0] = name; | |
408 | } | |
409 | ||
410 | args = Tcl_Merge(argc-1, argv+1); | |
411 | Tcl_SetVar(interp, "argv", args, TCL_GLOBAL_ONLY); | |
412 | ckfree(args); | |
413 | sprintf(buf, "%d", argc-1); | |
414 | Tcl_SetVar(interp, "argc", buf, TCL_GLOBAL_ONLY); | |
415 | Tcl_SetVar(interp, "argv0", (fileName != NULL) ? fileName : argv[0], | |
416 | TCL_GLOBAL_ONLY); | |
417 | if (geometry != NULL) { | |
418 | #if TK_MAJOR_VERSION < 4 | |
419 | Tcl_SetVar(interp, "geometry", geometry, TCL_GLOBAL_ONLY); | |
420 | #else | |
421 | Tcl_SetVar(interp, "geometry", geometry, TCL_GLOBAL_ONLY); | |
422 | code = Tcl_VarEval(interp, "wm geometry . ", geometry, (char *) NULL); | |
423 | if (code != TCL_OK) { | |
424 | fprintf(stderr, "%s\n", interp->result); | |
425 | } | |
426 | #endif | |
427 | } | |
428 | ||
429 | /* | |
430 | * Set the "tcl_interactive" variable. | |
431 | */ | |
432 | ||
433 | tty = isatty(0); | |
434 | Tcl_SetVar(interp, "tcl_interactive", | |
435 | ((fileName == NULL) && tty) ? "1" : "0", TCL_GLOBAL_ONLY); | |
436 | ||
437 | /* | |
438 | * Add a few application-specific commands to the application's | |
439 | * interpreter. | |
440 | */ | |
441 | ||
442 | #ifdef SQUARE_DEMO | |
443 | Tcl_CreateCommand(interp, "square", SquareCmd, (ClientData) mainWindow, | |
444 | (void (*)()) NULL); | |
445 | #endif | |
446 | ||
447 | if (Tcl_Init(interp) == TCL_ERROR) { | |
448 | fprintf(stderr,"Tcl_Init failed: %s\n",interp->result); | |
449 | return 1; | |
450 | } | |
451 | if (Tk_Init(interp) == TCL_ERROR) { | |
452 | fprintf(stderr,"Tk_Init failed: %s\n",interp->result); | |
453 | return 1; | |
454 | } | |
455 | ||
456 | /* Call Exp_Init again because Tcl_Init resets auto_path, sigh. */ | |
457 | /* A better solution would be to execute Tcl/Tk_Init much earlier */ | |
458 | /* (before argc/argv is processed). */ | |
459 | ||
460 | if (Exp_Init(interp) == TCL_ERROR) { | |
461 | fprintf(stderr,"Exp_Init failed: %s\n",interp->result); | |
462 | return 1; | |
463 | } | |
464 | ||
465 | #if 0 | |
466 | tcl_RcFileName = "~/.wishrc"; | |
467 | ||
468 | /* | |
469 | * Invoke application-specific initialization. | |
470 | */ | |
471 | ||
472 | if (Tcl_AppInit(interp) != TCL_OK) { | |
473 | fprintf(stderr, "Tcl_AppInit failed: %s\n", interp->result); | |
474 | } | |
475 | #endif | |
476 | ||
477 | exp_interpret_rcfiles(interp,my_rc,sys_rc); | |
478 | ||
479 | #ifdef TK_EXTENDED | |
480 | tclAppName = "Wish"; | |
481 | tclAppLongname = "Wish - Tk Shell"; | |
482 | tclAppVersion = TK_VERSION; | |
483 | Tcl_ShellEnvInit (interp, TCLSH_ABORT_STARTUP_ERR, | |
484 | name, | |
485 | 0, NULL, /* argv var already set */ | |
486 | fileName == NULL, /* interactive? */ | |
487 | NULL); /* Standard default file */ | |
488 | #endif | |
489 | ||
490 | /* | |
491 | * Set the geometry of the main window, if requested. | |
492 | */ | |
493 | ||
494 | if (geometry != NULL) { | |
495 | code = Tcl_VarEval(interp, "wm geometry . ", geometry, (char *) NULL); | |
496 | if (code != TCL_OK) { | |
497 | fprintf(stderr, "%s\n", interp->result); | |
498 | } | |
499 | } | |
500 | ||
501 | /* | |
502 | * Invoke the script specified on the command line, if any. | |
503 | */ | |
504 | ||
505 | /* become interactive if requested or "nothing to do" */ | |
506 | if (exp_interactive) { | |
507 | (void) exp_interpreter(interp); | |
508 | } else if (exp_cmdfile) { | |
509 | int rc = exp_interpret_cmdfile(interp,exp_cmdfile); | |
510 | if (rc != TCL_OK) exp_exit(interp,rc); | |
511 | Tk_MainLoop(); | |
512 | } else if (exp_cmdfilename) { | |
513 | int rc = exp_interpret_cmdfilename(interp,exp_cmdfilename); | |
514 | if (rc != TCL_OK) exp_exit(interp,rc); | |
515 | Tk_MainLoop(); | |
516 | } | |
517 | ||
518 | /* | |
519 | * Don't exit directly, but rather invoke the Tcl "exit" command. | |
520 | * This gives the application the opportunity to redefine "exit" | |
521 | * to do additional cleanup. | |
522 | */ | |
523 | ||
524 | Tcl_Eval(interp,normalExitCmd); | |
525 | exit(1); | |
526 | ||
527 | #if 0 | |
528 | if (fileName != NULL) { | |
529 | Dbg_On(interp,0); | |
530 | code = Tcl_VarEval(interp, "source ", fileName, (char *) NULL); | |
531 | if (code != TCL_OK) { | |
532 | goto error; | |
533 | } | |
534 | tty = 0; | |
535 | } else { | |
536 | /* | |
537 | * Commands will come from standard input, so set up an event | |
538 | * handler for standard input. If the input device is aEvaluate the | |
539 | * .rc file, if one has been specified, set up an event handler | |
540 | * for standard input, and print a prompt if the input | |
541 | * device is a terminal. | |
542 | */ | |
543 | ||
544 | if (tcl_RcFileName != NULL) { | |
545 | Tcl_DString buffer; | |
546 | char *fullName; | |
547 | ||
548 | fullName = Tcl_TildeSubst(interp, tcl_RcFileName, &buffer); | |
549 | if (fullName == NULL) { | |
550 | fprintf(stderr, "%s\n", interp->result); | |
551 | } else { | |
552 | if (access(fullName, R_OK) == 0) { | |
553 | code = Tcl_EvalFile(interp, fullName); | |
554 | if (code != TCL_OK) { | |
555 | fprintf(stderr, "%s\n", interp->result); | |
556 | } | |
557 | } | |
558 | } | |
559 | Tcl_DStringFree(&buffer); | |
560 | } | |
561 | Tk_CreateFileHandler(0, TK_READABLE, StdinProc, (ClientData) 0); | |
562 | if (tty) { | |
563 | Prompt(interp, 0); | |
564 | } | |
565 | } | |
566 | fflush(stdout); | |
567 | Tcl_DStringInit(&command); | |
568 | ||
569 | /* | |
570 | * Loop infinitely, waiting for commands to execute. When there | |
571 | * are no windows left, Tk_MainLoop returns and we exit. | |
572 | */ | |
573 | ||
574 | Tk_MainLoop(); | |
575 | ||
576 | /* | |
577 | * Don't exit directly, but rather invoke the Tcl "exit" command. | |
578 | * This gives the application the opportunity to redefine "exit" | |
579 | * to do additional cleanup. | |
580 | */ | |
581 | ||
582 | Tcl_Eval(interp, "exit"); | |
583 | exit(1); | |
584 | ||
585 | error: | |
586 | msg = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY); | |
587 | if (msg == NULL) { | |
588 | msg = interp->result; | |
589 | } | |
590 | fprintf(stderr, "%s\n", msg); | |
591 | Tcl_Eval(interp, errorExitCmd); | |
592 | return 1; /* Needed only to prevent compiler warnings. */ | |
593 | ||
594 | #endif /*0*/ | |
595 | } | |
596 | \f | |
597 | #if 0 | |
598 | /* | |
599 | *---------------------------------------------------------------------- | |
600 | * | |
601 | * StdinProc -- | |
602 | * | |
603 | * This procedure is invoked by the event dispatcher whenever | |
604 | * standard input becomes readable. It grabs the next line of | |
605 | * input characters, adds them to a command being assembled, and | |
606 | * executes the command if it's complete. | |
607 | * | |
608 | * Results: | |
609 | * None. | |
610 | * | |
611 | * Side effects: | |
612 | * Could be almost arbitrary, depending on the command that's | |
613 | * typed. | |
614 | * | |
615 | *---------------------------------------------------------------------- | |
616 | */ | |
617 | ||
618 | /* ARGSUSED */ | |
619 | static void | |
620 | StdinProc(clientData, mask) | |
621 | ClientData clientData; /* Not used. */ | |
622 | int mask; /* Not used. */ | |
623 | { | |
624 | #define BUFFER_SIZE 4000 | |
625 | char input[BUFFER_SIZE+1]; | |
626 | static int gotPartial = 0; | |
627 | char *cmd; | |
628 | int code, count; | |
629 | ||
630 | count = read(fileno(stdin), input, BUFFER_SIZE); | |
631 | if (count <= 0) { | |
632 | if (!gotPartial) { | |
633 | if (tty) { | |
634 | Tcl_Eval(interp, "exit"); | |
635 | exit(1); | |
636 | } else { | |
637 | Tk_DeleteFileHandler(0); | |
638 | } | |
639 | return; | |
640 | } else { | |
641 | count = 0; | |
642 | } | |
643 | } | |
644 | cmd = Tcl_DStringAppend(&command, input, count); | |
645 | if (count != 0) { | |
646 | if ((input[count-1] != '\n') && (input[count-1] != ';')) { | |
647 | gotPartial = 1; | |
648 | goto prompt; | |
649 | } | |
650 | if (!Tcl_CommandComplete(cmd)) { | |
651 | gotPartial = 1; | |
652 | goto prompt; | |
653 | } | |
654 | } | |
655 | gotPartial = 0; | |
656 | ||
657 | /* | |
658 | * Disable the stdin file handler while evaluating the command; | |
659 | * otherwise if the command re-enters the event loop we might | |
660 | * process commands from stdin before the current command is | |
661 | * finished. Among other things, this will trash the text of the | |
662 | * command being evaluated. | |
663 | */ | |
664 | ||
665 | Tk_CreateFileHandler(0, 0, StdinProc, (ClientData) 0); | |
666 | code = Tcl_RecordAndEval(interp, cmd, 0); | |
667 | Tk_CreateFileHandler(0, TK_READABLE, StdinProc, (ClientData) 0); | |
668 | Tcl_DStringFree(&command); | |
669 | if (*interp->result != 0) { | |
670 | if ((code != TCL_OK) || (tty)) { | |
671 | printf("%s\n", interp->result); | |
672 | } | |
673 | } | |
674 | ||
675 | /* | |
676 | * Output a prompt. | |
677 | */ | |
678 | ||
679 | prompt: | |
680 | if (tty) { | |
681 | Prompt(interp, gotPartial); | |
682 | } | |
683 | } | |
684 | \f | |
685 | /* | |
686 | *---------------------------------------------------------------------- | |
687 | * | |
688 | * Prompt -- | |
689 | * | |
690 | * Issue a prompt on standard output, or invoke a script | |
691 | * to issue the prompt. | |
692 | * | |
693 | * Results: | |
694 | * None. | |
695 | * | |
696 | * Side effects: | |
697 | * A prompt gets output, and a Tcl script may be evaluated | |
698 | * in interp. | |
699 | * | |
700 | *---------------------------------------------------------------------- | |
701 | */ | |
702 | ||
703 | static void | |
704 | Prompt(interp, partial) | |
705 | Tcl_Interp *interp; /* Interpreter to use for prompting. */ | |
706 | int partial; /* Non-zero means there already | |
707 | * exists a partial command, so use | |
708 | * the secondary prompt. */ | |
709 | { | |
710 | char *promptCmd; | |
711 | int code; | |
712 | ||
713 | promptCmd = Tcl_GetVar(interp, | |
714 | partial ? "tcl_prompt2" : "tcl_prompt1", TCL_GLOBAL_ONLY); | |
715 | if (promptCmd == NULL) { | |
716 | defaultPrompt: | |
717 | if (!partial) { | |
718 | fputs("% ", stdout); | |
719 | } | |
720 | } else { | |
721 | code = Tcl_Eval(interp, promptCmd); | |
722 | if (code != TCL_OK) { | |
723 | Tcl_AddErrorInfo(interp, | |
724 | "\n (script that generates prompt)"); | |
725 | fprintf(stderr, "%s\n", interp->result); | |
726 | goto defaultPrompt; | |
727 | } | |
728 | } | |
729 | fflush(stdout); | |
730 | } | |
731 | #endif /*0*/ | |
732 | ||
733 | %} |