/[ascend]/trunk/tcltk98/generic/interface/Driver.c
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Contents of /trunk/tcltk98/generic/interface/Driver.c

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Revision 21 - (show annotations) (download) (as text)
Thu Dec 9 02:03:34 2004 UTC (17 years, 11 months ago) by aw0a
File MIME type: text/x-csrc
File size: 40335 byte(s)
fixed environment vars
1 /*
2 * Driver.c
3 * by Kirk Abbott and Ben Allan
4 * Created: 1/94
5 * Version: $Revision: 1.48 $
6 * Version control file: $RCSfile: Driver.c,v $
7 * Date last modified: $Date: 2003/08/23 18:43:06 $
8 * Last modified by: $Author: ballan $
9 *
10 * This file is part of the ASCEND Tcl/Tk interface
11 *
12 * Copyright 1997, Carnegie Mellon University
13 *
14 * The ASCEND Tcl/Tk interface is free software; you can redistribute
15 * it and/or modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of the
17 * License, or (at your option) any later version.
18 *
19 * The ASCEND Tcl/Tk interface is distributed in hope that it will be
20 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 * General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with the program; if not, write to the Free Software Foundation,
26 * Inc., 675 Mass Ave, Cambridge, MA 02139 USA. Check the file named
27 * COPYING. COPYING is found in ../compiler.
28 */
29
30 #include <stdarg.h>
31 #include <ctype.h>
32 #include <signal.h>
33 #include <time.h>
34 #include "tcl.h"
35 #include "tk.h"
36 #include "utilities/ascConfig.h"
37 #ifndef __WIN32__
38 #include <unistd.h>
39 #else
40 #define WIN32_LEAN_AND_MEAN
41 #include <windows.h>
42 #include <locale.h>
43 #undef WIN32_LEAN_AND_MEAN
44 #endif /* __WIN32__ */
45 #include "utilities/ascMalloc.h" /* for ascshutdown */
46 #include "utilities/ascPanic.h" /* for Asc_Panic */
47 #include "utilities/ascEnvVar.h"
48 #include "compiler/compiler.h"
49 #include "compiler/ascCompiler.h"
50 #include "compiler/instance_enum.h"
51 #include "compiler/fractions.h"
52 #include "compiler/dimen.h"
53 #include "compiler/compiler.h" /* for symchar for units.h */
54 #include "compiler/units.h"
55 #include "solver/slv_types.h"
56 #include "solver/var.h"
57 #include "solver/rel.h"
58 #include "solver/logrel.h"
59 #include "solver/discrete.h"
60 #include "solver/mtx.h"
61 #include "solver/slv_stdcalls.h"
62 #include "interface/AscBitmaps.h"
63 #include "interface/HelpProc.h"
64 #include "interface/Commands.h"
65 #include "interface/Driver.h"
66 #include "interface/ScriptProc.h"
67 #include "interface/SolverProc.h"
68 #include "interface/UnitsProc.h"
69
70 #ifndef lint
71 static CONST char DriverID[] = "$Id: Driver.c,v 1.48 2003/08/23 18:43:06 ballan Exp $";
72 #endif
73
74
75 /*
76 * The following are the environment variables ASCEND requires.
77 * If the user does not have the DIST_ENVIRONVAR set in his or her
78 * environment, a default value is set based on the directory where the
79 * ascend binary lives. The other enviornment variables will be set
80 * to default values keyed off of DIST_ENVIRONVAR. See the function
81 * CheckEnvironmentVars later in this file for the details.
82 */
83 #define DIST_ENVIRONVAR "ASCENDDIST"
84 #define ASCTK_ENVIRONVAR "ASCENDTK"
85 #define BITMAP_ENVIRONVAR "ASCENDBITMAPS"
86 #define LIBR_ENVIRONVAR "ASCENDLIBRARY"
87
88 /*
89 * EXPORTED VARIABLES
90 */
91
92 /**
93 * g_compiler_timing
94 *
95 * TRUE if compiler timing is to be printed.
96 * default is false, set to TRUE by passing -t on the command line
97 */
98 int g_compiler_timing = 0;
99
100 /**
101 * g_interp
102 *
103 * Interpreter for this application. We need to make it global
104 * so that our signal/floating-porint traps can access it.
105 */
106 Tcl_Interp *g_interp;
107
108 /*
109 * zz_debug
110 *
111 * Comes from the yacc file if yacc was built with debugging information
112 */
113 #ifdef ZZ_DEBUG
114 extern int zz_debug;
115 #endif
116
117
118 /*
119 * Declarations for procedures defined outside of this file.
120 */
121 extern int Tktable_Init(Tcl_Interp*);
122
123 /*
124 * Forward declarations for procedures defined later in this file.
125 */
126 static int AscDriver(int, CONST84 char * argv[]);
127 static void AscTrap(int);
128 static int AscCheckEnvironVars(Tcl_Interp*);
129 static void AscPrintHelpExit(CONST char *);
130 static int AscProcessCommandLine(Tcl_Interp*, int, CONST84 char **);
131 static void Prompt(Tcl_Interp*, int);
132 static int AscSetStartupFile(Tcl_Interp*);
133 static void StdinProc(ClientData, int);
134 #ifdef DEBUG_MALLOC
135 static void InitDebugMalloc(void);
136 #endif /* DEBUG_MALLOC */
137 #ifdef __WIN32__
138 static void setargv(int*, char ***);
139 #endif /* __WIN32__ */
140
141
142 /*
143 * LOCALLY GLOBAL VARIABLES
144 */
145
146 /*
147 * g_interface_simplify_relations
148 *
149 * TRUE for compiler optimizations
150 * default is TRUE, set to FALSE by passing +s on the command line
151 */
152 static int g_interface_simplify_relations = TRUE;
153
154 /*
155 * g_interfacever
156 *
157 * TRUE if windows to be built; default is TRUE, false is not supported
158 */
159 static int g_interfacever = 1;
160
161 /*
162 * g_command
163 *
164 * Used to assemble lines of terminal input into Tcl commands.
165 */
166 static Tcl_DString g_command;
167
168 /*
169 * g_line
170 *
171 * Used to read the next line from the terminal input.
172 */
173 static Tcl_DString g_line;
174
175 /*
176 * tty
177 *
178 * Non-zero means standard input is a terminal-like device.
179 * Zero means it's a file.
180 */
181 static int tty;
182
183 /*
184 * initScriptTclAdjust
185 * initScriptTkAdjust
186 *
187 * These two variables hold Tcl scripts that will set the TCL_LIBRARY
188 * and TK_LIBRARY environment variables if they are not already
189 * set in the user's environment.
190 * TCL_LIBRARY is set to: dirnameofexecutable/../../Tcl/lib/tcl8.0
191 * TK_LIBRARY is set to $tcl_library/../tk8.0
192 */
193 static char initScriptTclAdjust[] =
194 "proc asc_tclInit {} {\n\
195 global env\n\
196 rename asc_tclInit {}\n\
197 set errors {}\n\
198 set dirs {}\n\
199 if [info exists env(TCL_LIBRARY)] {\n\
200 return\n\
201 } else {\n\
202 set parentDir [file dirname [info nameofexecutable]]\n\
203 set env(TCL_LIBRARY) $parentDir/../../Tcl/lib/tcl8.0\n\
204 }\n\
205 }\n\
206 asc_tclInit";
207 /* for tcl, FOO/ascend4/bin/ascend4.exe is the executable, then
208 * /-- up to FOO/ascend4/bin
209 * set parentDir [file dirname [info nameofexecutable]]\n\
210 * Then if Tcl is next to ascend4, ../../Tcl/lib/tcl8.0 should work.
211 */
212
213 static char initScriptTkAdjust[] =
214 "proc asc_tkInit {} {\n\
215 global env\n\
216 rename asc_tkInit {}\n\
217 set errors {}\n\
218 set dirs {}\n\
219 if [info exists env(TK_LIBRARY)] {\n\
220 return\n\
221 } else {\n\
222 set parentDir [file dirname [info library]]\n\
223 set env(TK_LIBRARY) $parentDir/tk8.0\n\
224 }\n\
225 }\n\
226 asc_tkInit";
227 /*
228 * This assumes tcl_library has been found and that tcl8.0 and tk8.0
229 * are installed in the same lib directory -- the default tcl/tk install.
230 */
231
232 /*
233 * build_name
234 *
235 * who built this binary and when
236 */
237 #ifndef TIMESTAMP
238 static char build_name[]="by anonymous";
239 #else
240 static char build_name[]=TIMESTAMP;
241 #endif /* TIMESTAMP */
242
243
244
245 /*
246 * main or WinMain
247 *
248 * The main entry point for a Unix or Windows application.
249 *
250 * Each just calls AscDriver().
251 * These are based on functions from the Tk 8.0 distribution.
252 * See unix/tkAppInit.c and win/winMain.c in their sources.
253 */
254 #ifndef __WIN32__
255
256 int main(int argc, CONST84 char *argv[])
257 {
258 AscDriver(argc, argv);
259 return 0;
260 }
261
262 #else /* __WIN32__ */
263
264 int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
265 LPSTR lpszCmdLine, int nCmdShow)
266 {
267 int argc;
268 char **argv;
269 char *p;
270 char buffer[MAX_PATH];
271
272 /*
273 * Set up the default locale to be standard "C" locale so parsing
274 * is performed correctly.
275 */
276 setlocale(LC_ALL, "C");
277
278 /*
279 * Increase the application queue size from default value of 8.
280 * At the default value, cross application SendMessage of WM_KILLFOCUS
281 * will fail because the handler will not be able to do a PostMessage!
282 * This is only needed for Windows 3.x, since NT dynamically expands
283 * the queue.
284 */
285 SetMessageQueue(64);
286
287 /*
288 * Create the console channels and install them as the standard
289 * channels. All I/O will be discarded until TkConsoleInit is
290 * called to attach the console to a text widget.
291 */
292
293 /*
294 * Windows expects us to parse our arguments ourselves.
295 */
296 setargv(&argc, &argv);
297
298 /*
299 * Replace argv[0] with full pathname of executable, and forward
300 * slashes substituted for backslashes.
301 */
302 GetModuleFileName(NULL, buffer, sizeof(buffer));
303 argv[0] = buffer;
304 for (p = buffer; *p != '\0'; p++) {
305 if (*p == '\\') {
306 *p = '/';
307 }
308 }
309
310 AscDriver(argc, argv);
311 return 1;
312 }
313 #endif /* __WIN32__ */
314
315
316 /*
317 * int AscDriver( argc, argv )
318 * int argc;
319 * char *argv;
320 *
321 * A common entry point for Windows and Unix. The corresponding
322 * WinMain() and main() functions just call this function.
323 *
324 * This function creates a Tcl interpreter, initializes Tcl and Tk,
325 * initializes the Ascend data structures, sets up the user's
326 * environment, sources ASCEND's startup script, and calls Tk_MainLoop
327 * so the user can interact with ASCEND. Cleans up and exits the
328 * program when Tk_MainLoop returns.
329 *
330 * This function is based on the functions Tk_Main and Tcl_AppInit
331 * from the Tk8.0 distribution. See the files tkMain.c and tkAppInit.c
332 * in the Tk sources.
333 *
334 */
335 static int AscDriver(int argc, CONST84 char *argv[])
336 {
337 Tcl_Interp *interp; /* local version of global g_interp */
338 Tcl_Channel inChannel;
339 Tcl_Channel outChannel;
340
341 /*
342 * Create the Tk Console
343 *
344 * Create the console channels and install them as the standard
345 * channels. All I/O will be discarded until TkConsoleInit() is
346 * called to attach the console to a text widget.
347 */
348 #ifdef ASC_USE_TK_CONSOLE
349 TkConsoleCreate();
350 #endif /* ASC_USE_TK_CONSOLE */
351
352 /*
353 * Find the name of the current executable---available in the
354 * Tcl command `info nameofexecutable'
355 */
356 Tcl_FindExecutable(argv[0]);
357
358 /*
359 * Create the interpreter
360 */
361 g_interp = Tcl_CreateInterp();
362 interp = g_interp;
363 if( interp == NULL ) {
364 Asc_Panic(2, "Asc_Driver",
365 "Call to Tcl_CreateInterp returned NULL interpreter");
366 }
367
368 /*
369 * Check the arguments on the command line
370 */
371 AscProcessCommandLine(interp, argc, argv);
372
373 /*
374 * Set the "tcl_interactive" variable.
375 *
376 * ASCEND sets tty to `1', since we assume ASCEND is always interactive.
377 */
378 tty = 1;
379 Tcl_SetVar(interp, "tcl_interactive", "1", TCL_GLOBAL_ONLY);
380
381 /*
382 * Initialize Tcl and Tk
383 */
384 (void)Tcl_Eval(interp,initScriptTclAdjust);
385 if (Tcl_Init(interp) == TCL_ERROR) {
386 Asc_Panic(2, "Asc_Driver", "Tcl initialization failed:\n%s",
387 Tcl_GetStringResult(interp));
388 }
389 (void)Tcl_Eval(interp,initScriptTkAdjust);
390 if (Tk_Init(interp) == TCL_ERROR) {
391 Asc_Panic(2, "Asc_Driver", "Tk initialization failed:\n%s",
392 Tcl_GetStringResult(interp));
393 }
394 Tcl_StaticPackage( interp, "Tk", Tk_Init, Tk_SafeInit );
395
396 /*
397 * Initialize the console and the ASCEND printf() substitutes.
398 * All output before this point is lost.
399 */
400 #ifdef ASC_USE_TK_CONSOLE
401 if (TkConsoleInit(interp) == TCL_ERROR) {
402 Asc_Panic(2, "Asc_Driver",
403 "Call to TkConsoleInit failed:\n%s",
404 Tcl_GetStringResult(interp));
405 }
406 #endif /* ASC_USE_TK_CONSOLE */
407 #ifdef USE_ASC_PRINTF
408 Asc_PrintInit();
409 #endif /* USE_ASC_PRINTF */
410
411 /*
412 * Now that our console and printing functions are properly
413 * initialized, print our startup banner.
414 */
415 PRINTF("ASCEND VERSION IV\n");
416 PRINTF("Compiler Implemention Version: 2.0\n");
417 PRINTF("Written by Tom Epperly,Kirk Abbott, and Ben Allan\n");
418 PRINTF(" Built: %s %s %s\n",__DATE__,__TIME__,build_name);
419 PRINTF("Copyright(C) 1990, 1993, 1994 Thomas Guthrie Epperly\n");
420 PRINTF("Copyright(C) 1993-1996 Kirk Andre Abbott, Ben Allan\n");
421 PRINTF("Copyright(C) 1997 Carnegie Mellon University\n");
422
423 /*
424 * Call the init procedures for included packages.
425 */
426 #ifdef STATIC_TKTABLE
427 if( Tktable_Init(interp) == TCL_ERROR ) {
428 Asc_Panic(2, "Asc_Driver",
429 "Call to Tktable_Init failed:\n%s",
430 Tcl_GetStringResult(interp));
431 }
432 #endif /* STATIC_TKTABLE */
433
434 /*
435 * Initialize ASCEND C Structures
436 * Create ASCEND Tcl Commands
437 */
438 clock();
439 /* the next line should NOT be Asc_SignalHandlerPush */
440 (void)signal(SIGINT, AscTrap);
441 #ifdef DEBUG_MALLOC
442 InitDebugMalloc();
443 ascstatus("Memory status after calling InitDebugMalloc()");
444 #endif /* DEBUG_MALLOC */
445 if ( Asc_CompilerInit(g_interface_simplify_relations) != 0 ) {
446 Asc_Panic(2, "Asc_CompilerInit",
447 "Insufficient memory to initialize compiler.");
448 }
449 SlvRegisterStandardClients();
450 if( Asc_HelpInit() == TCL_ERROR ) {
451 Asc_Panic(2, "Asc_HelpInit",
452 "Insufficient memory to initialize help system.");
453 }
454 Asc_CreateCommands(interp);
455 Asc_RegisterBitmaps(interp);
456
457 /*
458 * Set the environment, and set find the
459 * location of ASCEND's startup file.
460 */
461 AscCheckEnvironVars(interp);
462 if( AscSetStartupFile(interp) != TCL_OK ) {
463 Asc_Panic(2, "Asc_Driver",
464 "Cannot find ~/.ascendrc nor the default AscendRC\n%s",
465 Tcl_GetStringResult(interp));
466 }
467
468 /*
469 * Evaluate the ~/.ascendrc or $ASCENDTK/AscendRC file
470 */
471 Tcl_SourceRCFile(interp);
472
473 /*
474 * Establish a channel handlers for stdin and stdout
475 */
476 inChannel = Tcl_GetStdChannel(TCL_STDIN);
477 if (inChannel) {
478 Tcl_CreateChannelHandler(inChannel, TCL_READABLE, StdinProc,
479 (ClientData) inChannel);
480 }
481 if (tty) {
482 Prompt(interp, 0);
483 }
484 outChannel = Tcl_GetStdChannel(TCL_STDOUT);
485 if (outChannel) {
486 Tcl_Flush(outChannel);
487 }
488
489 /*
490 * Initialize the Dynamic Strings used in StdinProc()
491 */
492 Tcl_DStringInit(&g_command);
493 Tcl_DStringInit(&g_line);
494 Tcl_ResetResult(interp);
495
496 /*
497 * Loop infinitely, waiting for commands to execute. When there
498 * are no windows left, Tk_MainLoop returns and we exit.
499 */
500 #ifdef DEBUG_MALLOC
501 ascstatus("Memory status before calling Tk_MainLoop()");
502 #endif /* DEBUG_MALLOC */
503 if (Asc_ScriptConfigureInterrupt(1,interp)!=0) {
504 Asc_Panic(2, "Asc_ScriptConfigureInterrupt",
505 "Unable to configure script interrupt.");
506 }
507 Tk_MainLoop();
508 Asc_ScriptConfigureInterrupt(0,interp);
509 #ifdef DEBUG_MALLOC
510 ascstatus("Memory status after Tk_MainLoop() exits");
511 #endif /* DEBUG_MALLOC */
512
513 /*
514 * Do ASCEND Cleanup
515 */
516 Asc_HelpDestroy();
517 Asc_UnitValue(NULL);
518 Asc_SolvMemoryCleanup();
519 Asc_CompilerDestroy();
520 Asc_DestroyEnvironment();
521 #ifdef DEBUG_MALLOC
522 ascshutdown("Memory status just before exiting");
523 #endif /* DEBUG_MALLOC */
524
525 /*
526 * Destroy the interpreter and exit
527 */
528 Tcl_DeleteInterp(interp);
529 Tcl_Exit(0);
530 return 0;
531 }
532
533
534 /*
535 *-----------------------------------------------------------------
536 * int AscCheckEnvironVars(interp)
537 * Tcl_Interp *interp;
538 *
539 * This function checks the following environment variables and sets them
540 * to the default value if they are not set. This function will set
541 * DIST_ENVIRONVAR to the parent of the directory where the ASCEND binary
542 * lives if it is not set, e.g., if the ascend binary is
543 * /foo/bar/ascend4
544 * DIST_ENVIRONVAR is set to "/foo".
545 *
546 * We check to see if ASCTK_ENVIRONVAR points to the proper place by
547 * looking for the ASCEND startup script "AscendRC". If we find it, set
548 * the Tcl variable tcl_rcFileName to its location, otherwise, call
549 * Asc_Panic() to exit.
550 *
551 * Returns a standard Tcl return code.
552 *
553 * CPP_MACRO ENVIRONMENT VAR DEFAULT VALUE
554 * ================= =============== =============
555 * DIST_ENVIRONVAR ASCENDDIST parent of binary's directory
556 * AWW20041208: ASCTK_ENVIRONVAR ASCENDTK ASCENDDIST/TK
557 * ASCTK_ENVIRONVAR ASCENDTK ASCENDDIST/../../tcltk98/TK
558 * BITMAP_ENVIRONVAR ASCENDBITMAPS ASCENDTK/bitmaps
559 * LIBR_ENVIRONVAR ASCENDLIBRARY
560 * .:ASCENDDIST/models/libraries:ASCENDDIST/models/examples
561 *
562 */
563 static int AscCheckEnvironVars(Tcl_Interp *interp)
564 {
565 char *tmpenv; /* holds values returned by Asc_GetEnv() */
566 Tcl_DString ascenddist; /* holds the value of DIST_ENVIRONVAR */
567 Tcl_DString buffer2; /* used to incrementally build environment
568 * variable values
569 */
570 Tcl_DString buffer1; /* holds the environment variable value in the
571 * native format: result of passing buffer2
572 * into Tcl_TranslateFileName()
573 */
574 Tcl_Channel c; /* used to test if file exists */
575
576 /* initialize */
577 Tcl_DStringInit(&ascenddist);
578 Tcl_DStringInit(&buffer1);
579 Tcl_DStringInit(&buffer2);
580
581 /*
582 * Get the value of the ASCENDDIST environment variable;
583 * if not set, set it to the parent of the directory containing
584 * the ascend binary. For example, if the ascend binary is
585 * /foo/bar/bin/ascend4, set ASCENDDIST to /foo/bar
586 * If Tcl doesn't know where we are---the Tcl command
587 * `info nameofexecutable' returns ""---then ASCENDDIST is set
588 * to "."
589 */
590 if( Asc_ImportPathList(DIST_ENVIRONVAR) == 0 ) {
591 if( (tmpenv = Asc_GetEnv(DIST_ENVIRONVAR)) == NULL ) {
592 /* shouldn't be NULL since we just imported it successfully */
593 Asc_Panic(2, "CheckEnvironmentVars",
594 "Asc_GetEnv(%s) returned NULL value.", DIST_ENVIRONVAR);
595 }
596 Tcl_DStringAppend(&ascenddist, tmpenv, -1);
597 ascfree(tmpenv);
598 } else {
599 char cmd[] =
600 "file nativename [file dirname [file dirname [info nameofexecutable]]]";
601 if( Tcl_Eval(interp, cmd) == TCL_OK ) {
602 Tcl_DStringGetResult(interp, &ascenddist);
603 if(Asc_SetPathList(DIST_ENVIRONVAR,Tcl_DStringValue(&ascenddist)) != 0) {
604 Asc_Panic(2, "AscCheckEnvironVars",
605 "Asc_SetPathList() returned Nonzero: "
606 "Not enough memory to extend the environment");
607 }
608 }
609 }
610 /* Make sure the Tcl side can also see this variable */
611 Tcl_SetVar2(interp, "env", DIST_ENVIRONVAR,
612 Tcl_DStringValue(&ascenddist), TCL_GLOBAL_ONLY);
613
614 /*
615 * If the user's environment does not have ASCENDLIBRARY set, then set
616 * it to a reasonable default.
617 */
618 if( Asc_ImportPathList(LIBR_ENVIRONVAR) == 0 ) {
619 if( (tmpenv = Asc_GetEnv(LIBR_ENVIRONVAR)) == NULL ) {
620 /* shouldn't be NULL since we just imported it successfully */
621 Asc_Panic(2, "CheckEnvironmentVars",
622 "Asc_GetEnv(%s) returned NULL value.", LIBR_ENVIRONVAR);
623 }
624 /* Make sure the Tcl side can also see this variable */
625 Tcl_SetVar2(interp, "env", LIBR_ENVIRONVAR, tmpenv, TCL_GLOBAL_ONLY);
626 ascfree(tmpenv);
627 } else {
628 /* Add ``.'' to the ASCENDLIBRARY envar */
629 if( Asc_SetPathList(LIBR_ENVIRONVAR, ".") != 0 ) {
630 Asc_Panic(2, "AscCheckEnvironVars",
631 "Asc_SetPathList() returned Nonzero: "
632 "Not enough memory to extend the environment");
633 }
634
635 /* Add ``$ASCENDDIST/models'' to the ASCENDLIBRARY envar */
636 Tcl_DStringAppend(&buffer2, Tcl_DStringValue(&ascenddist), -1);
637 Tcl_DStringAppend(&buffer2, "/models", -1);
638 if( NULL != (Tcl_TranslateFileName(interp, Tcl_DStringValue(&buffer2),
639 &buffer1))) {
640 if(Asc_AppendPath(LIBR_ENVIRONVAR, Tcl_DStringValue(&buffer1)) != 0) {
641 Asc_Panic(2, "AscCheckEnvironVars",
642 "Asc_AppendPath() returned Nonzero: "
643 "Not enough memory to extend the environment");
644 }
645 Tcl_DStringFree(&buffer1);
646 }
647 Tcl_DStringFree(&buffer2);
648
649 /* Add ``$ASCENDDIST/models/examples'' to the ASCENDLIBRARY envar */
650 Tcl_DStringAppend(&buffer2, Tcl_DStringValue(&ascenddist), -1);
651 Tcl_DStringAppend(&buffer2, "/models/examples", -1);
652 if( NULL != (Tcl_TranslateFileName(interp, Tcl_DStringValue(&buffer2),
653 &buffer1))) {
654 if(Asc_AppendPath(LIBR_ENVIRONVAR, Tcl_DStringValue(&buffer1)) != 0) {
655 Asc_Panic(2, "AscCheckEnvironVars",
656 "Asc_AppendPath() returned Nonzero: "
657 "Not enough memory to extend the environment");
658 }
659 Tcl_DStringFree(&buffer1);
660 }
661 Tcl_DStringFree(&buffer2);
662
663 /* Add ``$ASCENDDIST/models/libraries'' to the ASCENDLIBRARY envar */
664 Tcl_DStringAppend(&buffer2, Tcl_DStringValue(&ascenddist), -1);
665 Tcl_DStringAppend(&buffer2, "/models/libraries", -1);
666 if( NULL != (Tcl_TranslateFileName(interp, Tcl_DStringValue(&buffer2),
667 &buffer1))) {
668 if(Asc_AppendPath(LIBR_ENVIRONVAR, Tcl_DStringValue(&buffer1)) != 0) {
669 Asc_Panic(2, "AscCheckEnvironVars",
670 "Asc_AppendPath() returned Nonzero: "
671 "Not enough memory to extend the environment");
672 }
673 Tcl_DStringFree(&buffer1);
674 }
675 Tcl_DStringFree(&buffer2);
676
677 /* Get the full value of the environment variable and set
678 * $env(ASCENDLIBRARY) in the Tcl code
679 */
680 if( (tmpenv = Asc_GetEnv(LIBR_ENVIRONVAR)) == NULL ) {
681 /* shouldn't be NULL since we just set it. memory error! */
682 Asc_Panic(2, "CheckEnvironmentVars",
683 "Asc_GetEnv(%s) returned NULL value.", LIBR_ENVIRONVAR);
684 }
685 /* Make sure the Tcl side can also see this variable */
686 Tcl_SetVar2(interp, "env", LIBR_ENVIRONVAR, tmpenv, TCL_GLOBAL_ONLY);
687 ascfree(tmpenv);
688 }
689
690 /*
691 * If the user's environment does not have ASCENDTK set, then set it
692 * by appending `TK' to ASCENDDIST. Later in this function, we check
693 * to make sure it is a valid directory by checking for the existence
694 * of `AscendRC' in that directory.
695 */
696 if( Asc_ImportPathList(ASCTK_ENVIRONVAR) == 0 ) {
697 if( (tmpenv = Asc_GetEnv(ASCTK_ENVIRONVAR)) == NULL ) {
698 /* shouldn't be NULL since we just imported it successfully */
699 Asc_Panic(2, "CheckEnvironmentVars",
700 "Asc_GetEnv(%s) returned NULL value.", ASCTK_ENVIRONVAR);
701 }
702 /* store ASCENDTK in ``buffer1'' so we can check for ASCENDTK/AscendRC
703 * below
704 */
705 Tcl_DStringAppend(&buffer1, tmpenv, -1);
706 ascfree(tmpenv);
707 } else {
708 Tcl_DStringAppend(&buffer2, Tcl_DStringValue(&ascenddist), -1);
709 /* AWW20041208: Tcl_DStringAppend(&buffer2, "/TK", -1);
710 */
711 Tcl_DStringAppend(&buffer2, "/../../tcltk98/TK", -1);
712 if(NULL != (Tcl_TranslateFileName(interp, Tcl_DStringValue(&buffer2),
713 &buffer1))) {
714 if( Asc_SetPathList(ASCTK_ENVIRONVAR, Tcl_DStringValue(&buffer1)) != 0) {
715 Asc_Panic(2, "Asc_EnvironmentInit",
716 "Not enough memory to initialize the environment");
717 }
718 }
719 Tcl_DStringFree(&buffer2);
720 }
721 /* Make sure the Tcl side can also see this variable */
722 Tcl_SetVar2(interp, "env", ASCTK_ENVIRONVAR,
723 Tcl_DStringValue(&buffer1), TCL_GLOBAL_ONLY);
724
725 /*
726 * Check to see if ASCENDTK looks reasonable by checking
727 * for ASCENDTK/AscendRC We use the Tcl channel
728 * mechanism to see if file exists.
729 */
730 Tcl_DStringAppend(&buffer1, "/AscendRC", -1 );
731 c = Tcl_OpenFileChannel( NULL, Tcl_DStringValue(&buffer1), "r", 0 );
732 if( c != (Tcl_Channel)NULL ) {
733 /*
734 * file exists. close the channel and set tcl_rcfilename to
735 * this location
736 */
737 Tcl_Close( NULL, c );
738 Tcl_SetVar(interp, "tcl_rcFileName", Tcl_DStringValue(&buffer1),
739 TCL_GLOBAL_ONLY);
740 } else {
741 Asc_Panic(2, "AscCheckEnvironVars",
742 "ERROR: Cannot find the file \"%s\" in the subdirectory \"..\/..\/tcltk98\/TK\"\n"
743 "under the directory \"%s\"\n"
744 "Please check the value of the environment variables %s and\n"
745 "and %s and start ASCEND again.\n",
746 "AscendRC", Tcl_DStringValue(&ascenddist), DIST_ENVIRONVAR,
747 ASCTK_ENVIRONVAR);
748 }
749 Tcl_DStringFree(&buffer1);
750
751 /*
752 * If the user's environment does not have ASCENDBITMAPS set, then set
753 * it by appending `bitmaps' to ASCENDTK.
754 */
755 if( Asc_ImportPathList(BITMAP_ENVIRONVAR) == 0 ) {
756 if( (tmpenv = Asc_GetEnv(BITMAP_ENVIRONVAR)) == NULL ) {
757 /* shouldn't be NULL since we just imported it successfully */
758 Asc_Panic(2, "CheckEnvironmentVars",
759 "Asc_GetEnv(%s) returned NULL value.", BITMAP_ENVIRONVAR);
760 }
761 /* Make sure the Tcl side can also see this variable */
762 Tcl_SetVar2(interp, "env", BITMAP_ENVIRONVAR, tmpenv, TCL_GLOBAL_ONLY);
763 ascfree(tmpenv);
764 } else {
765 Tcl_DStringAppend(&buffer2, Tcl_DStringValue(&ascenddist), -1);
766 Tcl_DStringAppend(&buffer2, "/TK/bitmaps", -1);
767 if(NULL != (Tcl_TranslateFileName(interp, Tcl_DStringValue(&buffer2),
768 &buffer1))) {
769 if(Asc_SetPathList(BITMAP_ENVIRONVAR, Tcl_DStringValue(&buffer1)) != 0) {
770 Asc_Panic(2, "Asc_EnvironmentInit",
771 "Not enough memory to initialize the environment");
772 }
773 }
774 Tcl_DStringFree(&buffer2);
775 /* Make sure the Tcl side can also see this variable */
776 Tcl_SetVar2(interp, "env", BITMAP_ENVIRONVAR,
777 Tcl_DStringValue(&buffer1), TCL_GLOBAL_ONLY);
778 Tcl_DStringFree(&buffer1);
779 }
780
781 /* Cleanup */
782 Tcl_DStringFree(&ascenddist);
783
784 return TCL_OK;
785 }
786
787
788 /*
789 * int AscSetStartupFile(interp)
790 * Tcl_Interp *interp;
791 *
792 * Look for ~/.ascendrc; if found, set the Tcl variable tcl_rcFileName
793 * to this file's location. This overrides the value set in
794 * AscCheckEnvironVars().
795 * If ~/_ascendrc is available it only gets used if ~/.ascendrc is not.
796 * Returns a standard Tcl return code.
797 */
798 static int AscSetStartupFile(Tcl_Interp *interp)
799 {
800 char *fullname; /* try to find this if first fails */
801 Tcl_DString buffer;
802 Tcl_Channel c; /* used to check for file existance */
803
804 Tcl_ResetResult(interp);
805
806 fullname = Tcl_TranslateFileName( interp, "~/.ascendrc", &buffer );
807 if( fullname != NULL ) {
808 /*
809 * Use the Tcl file channel routines to determine if ~/.ascendrc
810 * exists. We cannot use access() since Windows doesn't use it.
811 */
812 c = Tcl_OpenFileChannel( NULL, fullname, "r", 0 );
813 if( c != (Tcl_Channel)NULL ) {
814 /* file exists. close the channel and set tcl_rcFileName. */
815 Tcl_Close( NULL, c );
816 Tcl_SetVar(interp, "tcl_rcFileName", fullname, TCL_GLOBAL_ONLY);
817 Tcl_DStringFree(&buffer);
818 return TCL_OK;
819 }
820 Tcl_DStringFree(&buffer);
821 }
822 fullname = Tcl_TranslateFileName( interp, "~/_ascendrc", &buffer );
823 if( fullname != NULL ) {
824 /*
825 * Use the Tcl file channel routines to determine if ~/_ascendrc
826 * exists. We cannot use access() since Windows doesn't use it.
827 */
828 c = Tcl_OpenFileChannel( NULL, fullname, "r", 0 );
829 if( c != (Tcl_Channel)NULL ) {
830 /* file exists. close the channel and set tcl_rcFileName */
831 Tcl_Close( NULL, c );
832 Tcl_SetVar(interp, "tcl_rcFileName", fullname, TCL_GLOBAL_ONLY);
833 Tcl_DStringFree(&buffer);
834 return TCL_OK;
835 }
836 Tcl_DStringFree(&buffer);
837 }
838 return TCL_OK; /* probably should be TCL_ERROR */
839 }
840
841
842
843 /*
844 * file = AscProcessCommandLine(argc, argv)
845 * char *file;
846 * int argc;
847 * char *argv[];
848 *
849 * Process the options given on the command line `argv' where `argc' is
850 * the length of argv.
851 *
852 * Strip out ASCEND specific flags and then pass the rest to Tcl so it
853 * can set what it needs.
854 *
855 * This function may call exit() if the user requests help.
856 */
857 static int AscProcessCommandLine(Tcl_Interp *interp, int argc, CONST84 char **argv)
858 {
859 int i;
860 int flag; /* set to 1 for `+arg', -1 for `-arg' */
861 size_t length; /* length of an argv */
862 char *args;
863 char buf[MAXIMUM_NUMERIC_LENGTH]; /* space for integer->string conversion */
864 int new_argc = 0; /* the argc we will pass to Tcl */
865 #ifdef ZZ_DEBUG
866 zz_debug = 0; /* nonzero to print parser debugging info*/
867 #endif
868
869 for( i = 1; i < argc; i++ ) {
870 if( (length = strlen(argv[i])) == 0 ) {
871 /* ignore 0-length arguments */
872 continue;
873 }
874
875 if(( length >= 2 ) && ( strncmp(argv[i],"-h",2) == 0 )) {
876 AscPrintHelpExit(argv[0]);
877 }
878 if(( length >= 2 ) && ( strncmp(argv[i],"-H",2) == 0 )) {
879 AscPrintHelpExit(argv[0]);
880 }
881 if(( length >= 4 ) && ( strncmp(argv[i],"help",4) == 0 )) {
882 AscPrintHelpExit(argv[0]);
883 }
884
885 if( argv[i][0] == '-' ) {
886 flag = -1;
887 } else if( argv[i][0] == '+' ) {
888 flag = 1;
889 } else {
890 flag = 0;
891 }
892
893 if(( length == 2 ) && ( flag != 0 )) {
894 switch( argv[i][1] ) {
895 case 'd':
896 /* '-d' turns on scanner debugging (if ascend was built with it)
897 * '+d' turns off scanner debugging [default]
898 */
899 if( flag == -1 ) {
900 #ifdef ZZ_DEBUG
901 zz_debug = 1;
902 } else {
903 zz_debug = 0;
904 #else
905 FPRINTF(ASCERR, "Sorry, %s wasn't compiled with %s defined.\n",
906 argv[0], "ZZ_DEBUG");
907 #endif /* ZZ_DEBUG */
908 }
909 break;
910 case 's':
911 /* '-s' turns on compiler optimizations [default]
912 * '+s' turns off compiler optimizations
913 */
914 if( flag == -1 ) {
915 g_interface_simplify_relations = 1;
916 } else {
917 g_interface_simplify_relations = 0;
918 }
919 break;
920 case 't':
921 /* '-t' turns on timing of compiler optimizations
922 * '+t' turns off timing of compiler optimizations [default]
923 */
924 if( flag == 0 ) {
925 g_compiler_timing = 1;
926 } else {
927 g_compiler_timing = 0;
928 }
929 break;
930 case 'c':
931 case 'g':
932 fprintf(ASCERR, "WARNING! Obsolete ASCEND option \"%s\"\n", argv[i]);
933 break;
934 default:
935 /* unknown ASCEND option, pass it on to Tcl
936 */
937 argv[++new_argc] = argv[i];
938 break;
939 }
940 } else {
941 /* unknown ASCEND option, pass it on to Tcl
942 */
943 argv[++new_argc] = argv[i];
944 }
945 }
946
947 /*
948 * Make command-line arguments available in the Tcl variables "argc"
949 * and "argv".
950 */
951 args = Tcl_Merge(new_argc, (argv+1));
952 Tcl_SetVar(interp, "argv", args, TCL_GLOBAL_ONLY);
953 ckfree(args);
954 sprintf(buf, "%d", new_argc);
955 Tcl_SetVar(interp, "argc", buf, TCL_GLOBAL_ONLY);
956 Tcl_SetVar(interp, "argv0", argv[0], TCL_GLOBAL_ONLY);
957
958 return TCL_OK;
959 }
960
961
962 /*
963 * AscPrintHelpExit(invoke_name)
964 * CONST char *invoke_name;
965 *
966 * Print a help message and exit. Use invoke_name as the name of
967 * the binary
968 */
969 static
970 void AscPrintHelpExit(CONST char *invoke_name)
971 {
972 PRINTF("usage: %s [options]\n"
973 "\n"
974 "where options include [default value]:\n"
975 " -h print this message\n"
976 " -/+d turn on/off yacc debugging [off]\n"
977 " -/+s turn on/off compiler optimizations [on]\n"
978 " -/+t turn on/off timing of compiler operations [off]\n",
979 invoke_name);
980 Tcl_Exit(0); /* Show this help message and leave */
981 }
982
983
984 /*
985 * AscTrap(sig)
986 * int sig;
987 *
988 * Function to call when we receive an interrupt.
989 */
990 static
991 void AscTrap(int sig)
992 {
993 putchar('\n');
994 Asc_Panic(sig, "AscTrap", "Caught Signal: %d", sig);
995 }
996
997
998 /*
999 * See this file's header for documentation.
1000 */
1001 int Asc_LoadWin(ClientData cdata, Tcl_Interp *interp,
1002 int argc, CONST84 char *argv[])
1003 {
1004 (void)cdata; /* stop gcc whine about unused parameter */
1005 (void)argv; /* stop gcc whine about unused parameter */
1006
1007 if ( argc != 1 ) {
1008 FPRINTF(stderr,"call is: ascloadwin <no args> \n");
1009 return TCL_ERROR;
1010 }
1011 if (g_interfacever) {
1012 Tcl_SetResult(interp, "1", TCL_STATIC);
1013 } else {
1014 Tcl_SetResult(interp, "0", TCL_STATIC);
1015 }
1016 return TCL_OK;
1017 }
1018
1019
1020 /*
1021 *----------------------------------------------------------------------
1022 *----------------------------------------------------------------------
1023 * The following StdinProc() and Prompt() are from tkMain.c in
1024 * the Tk4.1 distribution (and did not change in Tk8.0).
1025 *----------------------------------------------------------------------
1026 *----------------------------------------------------------------------
1027 */
1028 /*
1029 *----------------------------------------------------------------------
1030 *
1031 * StdinProc --
1032 *
1033 * This procedure is invoked by the event dispatcher whenever
1034 * standard input becomes readable. It grabs the next line of
1035 * input characters, adds them to a command being assembled, and
1036 * executes the command if it's complete.
1037 *
1038 * Results:
1039 * None.
1040 *
1041 * Side effects:
1042 * Could be almost arbitrary, depending on the command that's
1043 * typed.
1044 *
1045 *----------------------------------------------------------------------
1046 */
1047
1048 /* ARGSUSED */
1049 static void
1050 StdinProc(clientData, mask)
1051 ClientData clientData; /* Not used. */
1052 int mask; /* Not used. */
1053 {
1054 static int gotPartial = 0;
1055 char *cmd;
1056 int code, count;
1057 Tcl_Channel chan = (Tcl_Channel) clientData;
1058
1059 Tcl_Interp *interp = g_interp; /* use a local copy of the
1060 * global tcl interpreter
1061 */
1062
1063 (void)clientData; /* stop gcc whine about unused parameter */
1064 (void)mask; /* stop gcc whine about unused parameter */
1065
1066 count = Tcl_Gets(chan, &g_line);
1067
1068 if (count < 0) {
1069 if (!gotPartial) {
1070 if (tty) {
1071 return;
1072 } else {
1073 Tcl_DeleteChannelHandler(chan, StdinProc, (ClientData) chan);
1074 }
1075 return;
1076 } else {
1077 count = 0;
1078 }
1079 }
1080
1081 (void) Tcl_DStringAppend(&g_command, Tcl_DStringValue(&g_line), -1);
1082 cmd = Tcl_DStringAppend(&g_command, "\n", -1);
1083 Tcl_DStringFree(&g_line);
1084
1085 if (!Tcl_CommandComplete(cmd)) {
1086 gotPartial = 1;
1087 goto prompt;
1088 }
1089 gotPartial = 0;
1090
1091 /*
1092 * Disable the stdin channel handler while evaluating the command;
1093 * otherwise if the command re-enters the event loop we might
1094 * process commands from stdin before the current command is
1095 * finished. Among other things, this will trash the text of the
1096 * command being evaluated.
1097 */
1098
1099 Tcl_CreateChannelHandler(chan, 0, StdinProc, (ClientData) chan);
1100 code = Tcl_RecordAndEval(interp, cmd, TCL_EVAL_GLOBAL);
1101 Tcl_CreateChannelHandler(chan, TCL_READABLE, StdinProc,
1102 (ClientData) chan);
1103 Tcl_DStringFree(&g_command);
1104 if (*interp->result != 0) {
1105 if ((code != TCL_OK) || (tty)) {
1106 /*
1107 * The statement below used to call "printf", but that resulted
1108 * in core dumps under Solaris 2.3 if the result was very long.
1109 *
1110 * NOTE: This probably will not work under Windows either.
1111 */
1112
1113 puts(interp->result);
1114 }
1115 }
1116
1117 /*
1118 * Output a prompt.
1119 */
1120
1121 prompt:
1122 if (tty) {
1123 Prompt(interp, gotPartial);
1124 }
1125 Tcl_ResetResult(interp);
1126 }
1127
1128 /*
1129 *----------------------------------------------------------------------
1130 *
1131 * Prompt --
1132 *
1133 * Issue a prompt on standard output, or invoke a script
1134 * to issue the prompt.
1135 *
1136 * Results:
1137 * None.
1138 *
1139 * Side effects:
1140 * A prompt gets output, and a Tcl script may be evaluated
1141 * in interp.
1142 *
1143 *----------------------------------------------------------------------
1144 */
1145
1146 static void
1147 Prompt(interp, partial)
1148 Tcl_Interp *interp; /* Interpreter to use for prompting. */
1149 int partial; /* Non-zero means there already
1150 * exists a partial command, so use
1151 * the secondary prompt. */
1152 {
1153 CONST84 char *promptCmd;
1154 int code;
1155 Tcl_Channel outChannel, errChannel;
1156 CONST84 char *subPrompt;
1157
1158 errChannel = Tcl_GetChannel(interp, "stderr", NULL);
1159
1160 subPrompt = (partial ? "tcl_prompt2" : "tcl_prompt1");
1161 promptCmd = Tcl_GetVar(interp, subPrompt, TCL_GLOBAL_ONLY);
1162 if (promptCmd == NULL) {
1163 defaultPrompt:
1164
1165 /*
1166 * We must check that outChannel is a real channel - it
1167 * is possible that someone has transferred stdout out of
1168 * this interpreter with "interp transfer".
1169 */
1170
1171 outChannel = Tcl_GetChannel(interp, "stdout", NULL);
1172 if (outChannel != (Tcl_Channel) NULL) {
1173 if (!partial) {
1174 Tcl_Write(outChannel, "AscendIV% ", 10);
1175 } else {
1176 Tcl_Write(outChannel, "more? ", 6);
1177 }
1178 }
1179 } else {
1180 code = Tcl_Eval(interp, promptCmd);
1181 if (code != TCL_OK) {
1182 Tcl_AddErrorInfo(interp,
1183 "\n (script that generates prompt)");
1184 /*
1185 * We must check that errChannel is a real channel - it
1186 * is possible that someone has transferred stderr out of
1187 * this interpreter with "interp transfer".
1188 */
1189
1190 errChannel = Tcl_GetChannel(interp, "stderr", NULL);
1191 if (errChannel != (Tcl_Channel) NULL) {
1192 Tcl_Write(errChannel, interp->result, -1);
1193 Tcl_Write(errChannel, "\n", 1);
1194 }
1195 goto defaultPrompt;
1196 }
1197 }
1198 outChannel = Tcl_GetChannel(interp, "stdout", NULL);
1199 if (outChannel != (Tcl_Channel) NULL) {
1200 Tcl_Flush(outChannel);
1201 }
1202 }
1203
1204 /*
1205 *----------------------------------------------------------------------
1206 * Tom Epperly's Malloc Debugger
1207 *----------------------------------------------------------------------
1208 */
1209 #ifdef DEBUG_MALLOC
1210 static void InitDebugMalloc(void)
1211 {
1212 union dbmalloptarg m;
1213 m.str = NULL;
1214 m.i = 0;
1215 dbmallopt(MALLOC_CKDATA,&m);
1216 }
1217
1218 int Asc_DebugMallocCmd(ClientData cdata, Tcl_Interp *interp,
1219 int argc, CONST84 char *argv[])
1220 {
1221 union dbmalloptarg m;
1222
1223 if ( argc != 2 ) {
1224 Tcl_SetResult(interp, "wrong # args : Usage __dbmalloc ?on?off?",
1225 TCL_STATIC);
1226 return TCL_ERROR;
1227 }
1228 m.str = NULL;
1229 if (strcmp(argv[1],"on")==0) {
1230 m.i = 1;
1231 } else if (strcmp(argv[1],"off")==0) {
1232 m.i = 0;
1233 } else {
1234 Tcl_SetResult(interp, "incorrect args : should be \"on\" or \"off\"",
1235 TCL_STATIC);
1236 return TCL_ERROR;
1237 }
1238 dbmallopt(MALLOC_CKDATA,&m); /* turn on str* mem* and b* checking */
1239 return TCL_OK;
1240 }
1241 #endif /* DEBUG_MALLOC */
1242
1243 #ifdef __WIN32__
1244 /*
1245 *-------------------------------------------------------------------------
1246 *
1247 * setargv --
1248 *
1249 * Parse the Windows command line string into argc/argv. Done here
1250 * because we don't trust the builtin argument parser in crt0.
1251 * Windows applications are responsible for breaking their command
1252 * line into arguments.
1253 *
1254 * 2N backslashes + quote -> N backslashes + begin quoted string
1255 * 2N + 1 backslashes + quote -> literal
1256 * N backslashes + non-quote -> literal
1257 * quote + quote in a quoted string -> single quote
1258 * quote + quote not in quoted string -> empty string
1259 * quote -> begin quoted string
1260 *
1261 * Results:
1262 * Fills argcPtr with the number of arguments and argvPtr with the
1263 * array of arguments.
1264 *
1265 * Side effects:
1266 * Memory allocated.
1267 *
1268 * This function is from the Tk 8.0 distribution. See win/winMain.c in
1269 * their sources.
1270 *
1271 *--------------------------------------------------------------------------
1272 */
1273 static void
1274 setargv(argcPtr, argvPtr)
1275 int *argcPtr; /* Filled with number of argument strings. */
1276 char ***argvPtr; /* Filled with argument strings (malloc'd). */
1277 {
1278 char *cmdLine, *p, *arg, *argSpace;
1279 char **argv;
1280 int argc, size, inquote, copy, slashes;
1281
1282 cmdLine = GetCommandLine();
1283
1284 /*
1285 * Precompute an overly pessimistic guess at the number of arguments
1286 * in the command line by counting non-space spans.
1287 */
1288
1289 size = 2;
1290 for (p = cmdLine; *p != '\0'; p++) {
1291 if (isspace(*p)) {
1292 size++;
1293 while (isspace(*p)) {
1294 p++;
1295 }
1296 if (*p == '\0') {
1297 break;
1298 }
1299 }
1300 }
1301 argSpace = (char *) ckalloc((unsigned) (size * sizeof(char *)
1302 + strlen(cmdLine) + 1));
1303 argv = (char **) argSpace;
1304 argSpace += size * sizeof(char *);
1305 size--;
1306
1307 p = cmdLine;
1308 for (argc = 0; argc < size; argc++) {
1309 argv[argc] = arg = argSpace;
1310 while (isspace(*p)) {
1311 p++;
1312 }
1313 if (*p == '\0') {
1314 break;
1315 }
1316
1317 inquote = 0;
1318 slashes = 0;
1319 while (1) {
1320 copy = 1;
1321 while (*p == '\\') {
1322 slashes++;
1323 p++;
1324 }
1325 if (*p == '"') {
1326 if ((slashes & 1) == 0) {
1327 copy = 0;
1328 if ((inquote) && (p[1] == '"')) {
1329 p++;
1330 copy = 1;
1331 } else {
1332 inquote = !inquote;
1333 }
1334 }
1335 slashes >>= 1;
1336 }
1337
1338 while (slashes) {
1339 *arg = '\\';
1340 arg++;
1341 slashes--;
1342 }
1343
1344 if ((*p == '\0') || (!inquote && isspace(*p))) {
1345 break;
1346 }
1347 if (copy != 0) {
1348 *arg = *p;
1349 arg++;
1350 }
1351 p++;
1352 }
1353 *arg = '\0';
1354 argSpace = arg + 1;
1355 }
1356 argv[argc] = NULL;
1357
1358 *argcPtr = argc;
1359 *argvPtr = argv;
1360 }
1361
1362 #endif /* __WIN32__ */

john.pye@anu.edu.au
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