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7dc6e754 | 1 | /* Copyright (C) 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc. |
224c49f9 JB |
2 | * This program is free software; you can redistribute it and/or modify |
3 | * it under the terms of the GNU General Public License as published by | |
4 | * the Free Software Foundation; either version 2, or (at your option) | |
5 | * any later version. | |
6 | * | |
7 | * This program is distributed in the hope that it will be useful, | |
8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
10 | * GNU General Public License for more details. | |
11 | * | |
12 | * You should have received a copy of the GNU General Public License | |
13 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
14 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
15 | * Boston, MA 02111-1307 USA | |
224c49f9 JB |
16 | * |
17 | * As a special exception, the Free Software Foundation gives permission | |
18 | * for additional uses of the text contained in its release of GUILE. | |
19 | * | |
20 | * The exception is that, if you link the GUILE library with other files | |
21 | * to produce an executable, this does not by itself cause the | |
22 | * resulting executable to be covered by the GNU General Public License. | |
23 | * Your use of that executable is in no way restricted on account of | |
24 | * linking the GUILE library code into it. | |
25 | * | |
26 | * This exception does not however invalidate any other reasons why | |
27 | * the executable file might be covered by the GNU General Public License. | |
28 | * | |
29 | * This exception applies only to the code released by the | |
30 | * Free Software Foundation under the name GUILE. If you copy | |
31 | * code from other Free Software Foundation releases into a copy of | |
32 | * GUILE, as the General Public License permits, the exception does | |
33 | * not apply to the code that you add in this way. To avoid misleading | |
34 | * anyone as to the status of such modified files, you must delete | |
35 | * this exception notice from them. | |
36 | * | |
37 | * If you write modifications of your own for GUILE, it is your choice | |
38 | * whether to permit this exception to apply to your modifications. | |
82892bed | 39 | * If you do not wish that, delete this exception notice. */ |
224c49f9 JB |
40 | |
41 | /* "script.c" argv tricks for `#!' scripts. | |
d3be4a7a | 42 | Authors: Aubrey Jaffer and Jim Blandy */ |
224c49f9 | 43 | |
6e8d25a6 GB |
44 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, |
45 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
46 | ||
224c49f9 JB |
47 | #include <stdio.h> |
48 | #include <ctype.h> | |
49 | #include "_scm.h" | |
50 | #include "gh.h" | |
51 | #include "load.h" | |
fef07353 | 52 | #include "version.h" |
224c49f9 JB |
53 | |
54 | #include "script.h" | |
55 | ||
bd9e24b3 GH |
56 | #ifdef HAVE_STRING_H |
57 | #include <string.h> | |
58 | #endif | |
59 | ||
d3be4a7a | 60 | #ifdef HAVE_UNISTD_H |
224c49f9 | 61 | #include <unistd.h> /* for X_OK define */ |
224c49f9 JB |
62 | #endif |
63 | ||
64 | /* Concatentate str2 onto str1 at position n and return concatenated | |
65 | string if file exists; 0 otherwise. */ | |
66 | ||
67 | static char * | |
6e8d25a6 | 68 | scm_cat_path (char *str1, const char *str2, long n) |
224c49f9 JB |
69 | { |
70 | if (!n) | |
71 | n = strlen (str2); | |
72 | if (str1) | |
73 | { | |
74 | long len = strlen (str1); | |
75 | str1 = (char *) realloc (str1, (scm_sizet) (len + n + 1)); | |
76 | if (!str1) | |
77 | return 0L; | |
78 | strncat (str1 + len, str2, n); | |
79 | return str1; | |
80 | } | |
81 | str1 = (char *) malloc ((scm_sizet) (n + 1)); | |
82 | if (!str1) | |
83 | return 0L; | |
84 | str1[0] = 0; | |
85 | strncat (str1, str2, n); | |
86 | return str1; | |
87 | } | |
88 | ||
89 | #if 0 | |
90 | static char * | |
6e8d25a6 | 91 | scm_try_path (char *path) |
224c49f9 JB |
92 | { |
93 | FILE *f; | |
94 | /* fprintf(stderr, "Trying %s\n", path);fflush(stderr); */ | |
95 | if (!path) | |
96 | return 0L; | |
97 | SCM_SYSCALL (f = fopen (path, "r"); | |
98 | ); | |
99 | if (f) | |
100 | { | |
101 | fclose (f); | |
102 | return path; | |
103 | } | |
104 | free (path); | |
105 | return 0L; | |
106 | } | |
107 | ||
108 | static char * | |
6e8d25a6 | 109 | scm_sep_init_try (char *path, const char *sep, const char *initname) |
224c49f9 JB |
110 | { |
111 | if (path) | |
112 | path = scm_cat_path (path, sep, 0L); | |
113 | if (path) | |
114 | path = scm_cat_path (path, initname, 0L); | |
115 | return scm_try_path (path); | |
116 | } | |
117 | #endif | |
118 | ||
119 | #ifndef LINE_INCREMENTORS | |
120 | #define LINE_INCREMENTORS '\n' | |
121 | #ifdef MSDOS | |
122 | #define WHITE_SPACES ' ':case '\t':case '\r':case '\f':case 26 | |
123 | #else | |
124 | #define WHITE_SPACES ' ':case '\t':case '\r':case '\f' | |
125 | #endif /* def MSDOS */ | |
126 | #endif /* ndef LINE_INCREMENTORS */ | |
127 | ||
128 | #ifndef MAXPATHLEN | |
129 | #define MAXPATHLEN 80 | |
130 | #endif /* ndef MAXPATHLEN */ | |
131 | #ifndef X_OK | |
132 | #define X_OK 1 | |
133 | #endif /* ndef X_OK */ | |
134 | ||
224c49f9 | 135 | char * |
d3be4a7a | 136 | scm_find_executable (const char *name) |
224c49f9 JB |
137 | { |
138 | char tbuf[MAXPATHLEN]; | |
139 | int i = 0; | |
140 | FILE *f; | |
141 | ||
142 | /* fprintf(stderr, "s_f_e checking access %s ->%d\n", name, access(name, X_OK)); fflush(stderr); */ | |
143 | if (access (name, X_OK)) | |
144 | return 0L; | |
145 | f = fopen (name, "r"); | |
146 | if (!f) | |
147 | return 0L; | |
148 | if ((fgetc (f) == '#') && (fgetc (f) == '!')) | |
149 | { | |
150 | while (1) | |
151 | switch (tbuf[i++] = fgetc (f)) | |
152 | { | |
153 | case /*WHITE_SPACES */ ' ': | |
154 | case '\t': | |
155 | case '\r': | |
156 | case '\f': | |
157 | case EOF: | |
158 | tbuf[--i] = 0; | |
159 | fclose (f); | |
160 | return scm_cat_path (0L, tbuf, 0L); | |
161 | } | |
162 | } | |
163 | fclose (f); | |
164 | return scm_cat_path (0L, name, 0L); | |
165 | } | |
224c49f9 | 166 | |
224c49f9 JB |
167 | |
168 | /* Read a \nnn-style escape. We've just read the backslash. */ | |
169 | static int | |
6e8d25a6 | 170 | script_get_octal (FILE *f) |
224c49f9 JB |
171 | { |
172 | int i; | |
173 | int value = 0; | |
174 | ||
175 | for (i = 0; i < 3; i++) | |
176 | { | |
177 | int c = getc (f); | |
178 | if ('0' <= c && c <= '7') | |
179 | value = (value * 8) + (c - '0'); | |
180 | else | |
181 | scm_wta (SCM_UNDEFINED, | |
182 | "malformed script: bad octal backslash escape", | |
183 | "script argument parser"); | |
184 | } | |
185 | return value; | |
186 | } | |
187 | ||
188 | ||
189 | static int | |
6e8d25a6 | 190 | script_get_backslash (FILE *f) |
224c49f9 JB |
191 | { |
192 | int c = getc (f); | |
193 | ||
194 | switch (c) | |
195 | { | |
196 | case 'a': return '\a'; | |
197 | case 'b': return '\b'; | |
198 | case 'f': return '\f'; | |
199 | case 'n': return '\n'; | |
200 | case 'r': return '\r'; | |
201 | case 't': return '\t'; | |
202 | case 'v': return '\v'; | |
203 | ||
204 | case '\\': | |
205 | case ' ': | |
206 | case '\t': | |
207 | case '\n': | |
208 | return c; | |
209 | ||
210 | case '0': case '1': case '2': case '3': | |
211 | case '4': case '5': case '6': case '7': | |
212 | ungetc (c, f); | |
213 | return script_get_octal (f); | |
214 | ||
215 | case EOF: | |
216 | scm_wta (SCM_UNDEFINED, | |
217 | "malformed script: backslash followed by EOF", | |
218 | "script argument parser"); | |
219 | return 0; /* not reached? */ | |
220 | ||
221 | default: | |
222 | scm_wta (SCM_UNDEFINED, | |
223 | "malformed script: bad backslash sequence", | |
224 | "script argument parser"); | |
225 | return 0; /* not reached? */ | |
226 | } | |
227 | } | |
228 | ||
229 | ||
230 | static char * | |
6e8d25a6 | 231 | script_read_arg (FILE *f) |
224c49f9 JB |
232 | { |
233 | int size = 7; | |
234 | char *buf = malloc (size + 1); | |
235 | int len = 0; | |
236 | ||
237 | if (! buf) | |
238 | return 0; | |
239 | ||
240 | for (;;) | |
241 | { | |
242 | int c = getc (f); | |
243 | switch (c) | |
244 | { | |
245 | case '\\': | |
246 | c = script_get_backslash (f); | |
247 | /* The above produces a new character to add to the argument. | |
248 | Fall through. */ | |
249 | default: | |
250 | if (len >= size) | |
251 | { | |
252 | size = (size + 1) * 2; | |
253 | buf = realloc (buf, size); | |
254 | if (! buf) | |
255 | return 0; | |
256 | } | |
257 | buf[len++] = c; | |
258 | break; | |
259 | ||
260 | case '\n': | |
261 | /* This may terminate an arg now, but it will terminate the | |
262 | entire list next time through. */ | |
263 | ungetc ('\n', f); | |
264 | case EOF: | |
265 | if (len == 0) | |
266 | { | |
267 | free (buf); | |
268 | return 0; | |
269 | } | |
270 | /* Otherwise, those characters terminate the argument; fall | |
271 | through. */ | |
272 | case ' ': | |
273 | buf[len] = '\0'; | |
274 | return buf; | |
275 | ||
276 | case '\t': | |
277 | free (buf); | |
278 | scm_wta (SCM_UNDEFINED, | |
279 | "malformed script: TAB in meta-arguments", | |
280 | "argument parser"); | |
281 | return 0; /* not reached? */ | |
282 | } | |
283 | } | |
284 | } | |
285 | ||
286 | ||
287 | static int | |
6e8d25a6 | 288 | script_meta_arg_P (char *arg) |
224c49f9 JB |
289 | { |
290 | if ('\\' != arg[0]) | |
291 | return 0L; | |
292 | #ifdef MSDOS | |
293 | return !arg[1]; | |
294 | #else | |
295 | switch (arg[1]) | |
296 | { | |
297 | case 0: | |
298 | case '%': | |
299 | case WHITE_SPACES: | |
300 | return !0; | |
301 | default: | |
302 | return 0L; | |
303 | } | |
304 | #endif | |
305 | } | |
306 | ||
307 | char ** | |
6e8d25a6 | 308 | scm_get_meta_args (int argc, char **argv) |
224c49f9 JB |
309 | { |
310 | int nargc = argc, argi = 1, nargi = 1; | |
311 | char *narg, **nargv; | |
312 | if (!(argc > 2 && script_meta_arg_P (argv[1]))) | |
313 | return 0L; | |
314 | if (!(nargv = (char **) malloc ((1 + nargc) * sizeof (char *)))) | |
315 | return 0L; | |
316 | nargv[0] = argv[0]; | |
317 | while (((argi + 1) < argc) && (script_meta_arg_P (argv[argi]))) | |
318 | { | |
319 | FILE *f = fopen (argv[++argi], "r"); | |
320 | if (f) | |
321 | { | |
322 | nargc--; /* to compensate for replacement of '\\' */ | |
323 | while (1) | |
324 | switch (getc (f)) | |
325 | { | |
326 | case EOF: | |
327 | return 0L; | |
328 | default: | |
329 | continue; | |
330 | case '\n': | |
331 | goto found_args; | |
332 | } | |
333 | found_args: | |
334 | while ((narg = script_read_arg (f))) | |
335 | if (!(nargv = (char **) realloc (nargv, | |
336 | (1 + ++nargc) * sizeof (char *)))) | |
337 | return 0L; | |
338 | else | |
339 | nargv[nargi++] = narg; | |
340 | fclose (f); | |
341 | nargv[nargi++] = argv[argi++]; | |
342 | } | |
343 | } | |
344 | while (argi <= argc) | |
345 | nargv[nargi++] = argv[argi++]; | |
346 | return nargv; | |
347 | } | |
348 | ||
349 | int | |
6e8d25a6 | 350 | scm_count_argv (char **argv) |
224c49f9 JB |
351 | { |
352 | int argc = 0; | |
353 | while (argv[argc]) | |
354 | argc++; | |
355 | return argc; | |
356 | } | |
357 | ||
358 | ||
359 | /* For use in error messages. */ | |
360 | char *scm_usage_name = 0; | |
361 | ||
362 | void | |
363 | scm_shell_usage (int fatal, char *message) | |
364 | { | |
365 | if (message) | |
366 | fprintf (stderr, "%s\n", message); | |
367 | ||
368 | fprintf (stderr, | |
369 | "Usage: %s OPTION ...\n" | |
370 | "Evaluate Scheme code, interactively or from a script.\n" | |
371 | "\n" | |
372 | " -s SCRIPT load Scheme source code from FILE, and exit\n" | |
373 | " -c EXPR evalute Scheme expression EXPR, and exit\n" | |
374 | " -- stop scanning arguments; run interactively\n" | |
375 | "The above switches stop argument processing, and pass all\n" | |
376 | "remaining arguments as the value of (command-line).\n" | |
377 | "\n" | |
378 | " -l FILE load Scheme source code from FILE\n" | |
379 | " -e FUNCTION after reading script, apply FUNCTION to\n" | |
380 | " command line arguments\n" | |
381 | " -ds do -s script at this point\n" | |
97c524bd | 382 | " -q inhibit loading of user init file\n" |
224c49f9 JB |
383 | " --emacs enable Emacs protocol (experimental)\n" |
384 | " -h, --help display this help and exit\n" | |
385 | " -v, --version display version information and exit\n" | |
386 | " \\ read arguments from following script lines\n", | |
387 | scm_usage_name); | |
388 | ||
389 | if (fatal) | |
8e568309 | 390 | exit (fatal); |
224c49f9 JB |
391 | } |
392 | ||
393 | ||
394 | /* Some symbols used by the command-line compiler. */ | |
395 | SCM_SYMBOL (sym_load, "load"); | |
396 | SCM_SYMBOL (sym_eval_string, "eval-string"); | |
397 | SCM_SYMBOL (sym_command_line, "command-line"); | |
398 | SCM_SYMBOL (sym_begin, "begin"); | |
399 | SCM_SYMBOL (sym_load_user_init, "load-user-init"); | |
400 | SCM_SYMBOL (sym_top_repl, "top-repl"); | |
401 | SCM_SYMBOL (sym_quit, "quit"); | |
402 | ||
403 | ||
404 | /* Given an array of command-line switches, return a Scheme expression | |
405 | to carry out the actions specified by the switches. | |
406 | ||
407 | If you told me this should have been written in Scheme, I'd | |
408 | probably agree. I'd say I didn't feel comfortable doing that in | |
409 | the present system. You'd say, well, fix the system so you are | |
410 | comfortable doing that. I'd agree again. *shrug* | |
411 | ||
412 | We load the ice-9 system from here. It might be nicer if the | |
413 | libraries initialized from the inner_main function in guile.c (which | |
414 | will be auto-generated eventually) could assume ice-9 were already | |
415 | loaded. Then again, it might be nice if ice-9 could assume that | |
416 | certain libraries were already loaded. The solution is to break up | |
417 | ice-9 into modules which can be frozen and statically linked like any | |
418 | other module. Then all the modules can describe their dependencies in | |
419 | the usual way, and the auto-generated inner_main will do the right | |
1b1b4739 | 420 | thing. */ |
224c49f9 | 421 | |
1abb11b6 MD |
422 | static char guile[] = "guile"; |
423 | ||
224c49f9 JB |
424 | SCM |
425 | scm_compile_shell_switches (int argc, char **argv) | |
426 | { | |
427 | SCM tail = SCM_EOL; /* We accumulate the list backwards, | |
428 | and then reverse! it before we | |
429 | return it. */ | |
430 | SCM do_script = SCM_EOL; /* The element of the list containing | |
431 | the "load" command, in case we get | |
432 | the "-ds" switch. */ | |
433 | SCM entry_point = SCM_EOL; /* for -e switch */ | |
434 | int interactive = 1; /* Should we go interactive when done? */ | |
97c524bd | 435 | int inhibit_user_init = 0; /* Don't load user init file */ |
224c49f9 JB |
436 | int use_emacs_interface = 0; |
437 | int i; | |
1abb11b6 | 438 | char *argv0 = guile; |
224c49f9 JB |
439 | |
440 | if (argc > 0) | |
441 | { | |
d0e32dd5 | 442 | argv0 = argv[0]; |
224c49f9 JB |
443 | scm_usage_name = strrchr (argv[0], '/'); |
444 | if (! scm_usage_name) | |
445 | scm_usage_name = argv[0]; | |
446 | else | |
447 | scm_usage_name++; | |
448 | } | |
449 | if (! scm_usage_name) | |
1abb11b6 | 450 | scm_usage_name = guile; |
224c49f9 JB |
451 | |
452 | for (i = 1; i < argc; i++) | |
453 | { | |
454 | if (! strcmp (argv[i], "-s")) /* load script */ | |
455 | { | |
456 | if (++i >= argc) | |
457 | scm_shell_usage (1, "missing argument to `-s' switch"); | |
458 | ||
459 | /* If we specified the -ds option, do_script points to the | |
460 | cdr of an expression like (load #f); we replace the car | |
461 | (i.e., the #f) with the script name. */ | |
462 | if (do_script != SCM_EOL) | |
463 | { | |
464 | SCM_SETCAR (do_script, scm_makfrom0str (argv[i])); | |
465 | do_script = SCM_EOL; | |
466 | } | |
467 | else | |
468 | /* Construct an application of LOAD to the script name. */ | |
469 | tail = scm_cons (scm_cons2 (sym_load, | |
470 | scm_makfrom0str (argv[i]), | |
471 | SCM_EOL), | |
472 | tail); | |
473 | argv0 = argv[i]; | |
474 | i++; | |
475 | interactive = 0; | |
476 | break; | |
477 | } | |
478 | ||
479 | else if (! strcmp (argv[i], "-c")) /* evaluate expr */ | |
480 | { | |
481 | if (++i >= argc) | |
482 | scm_shell_usage (1, "missing argument to `-c' switch"); | |
483 | tail = scm_cons (scm_cons2 (sym_eval_string, | |
484 | scm_makfrom0str (argv[i]), | |
485 | SCM_EOL), | |
486 | tail); | |
487 | i++; | |
488 | interactive = 0; | |
489 | break; | |
490 | } | |
491 | ||
492 | else if (! strcmp (argv[i], "--")) /* end args; go interactive */ | |
493 | { | |
494 | i++; | |
495 | break; | |
496 | } | |
497 | ||
498 | else if (! strcmp (argv[i], "-l")) /* load a file */ | |
499 | { | |
500 | if (++i < argc) | |
501 | tail = scm_cons (scm_cons2 (sym_load, | |
502 | scm_makfrom0str (argv[i]), | |
503 | SCM_EOL), | |
504 | tail); | |
505 | else | |
506 | scm_shell_usage (1, "missing argument to `-l' switch"); | |
507 | } | |
508 | ||
509 | else if (! strcmp (argv[i], "-e")) /* entry point */ | |
510 | { | |
511 | if (++i < argc) | |
512 | entry_point = gh_symbol2scm (argv[i]); | |
513 | else | |
514 | scm_shell_usage (1, "missing argument to `-e' switch"); | |
515 | } | |
516 | ||
517 | else if (! strcmp (argv[i], "-ds")) /* do script here */ | |
518 | { | |
519 | /* We put a dummy "load" expression, and let the -s put the | |
520 | filename in. */ | |
521 | if (do_script != SCM_EOL) | |
522 | scm_shell_usage (1, "the -ds switch may only be specified once"); | |
523 | do_script = scm_cons (SCM_BOOL_F, SCM_EOL); | |
524 | tail = scm_cons (scm_cons (sym_load, do_script), | |
525 | tail); | |
526 | } | |
527 | ||
528 | else if (! strcmp (argv[i], "--emacs")) /* use emacs protocol */ | |
529 | use_emacs_interface = 1; | |
530 | ||
97c524bd MD |
531 | else if (! strcmp (argv[i], "-q")) /* don't load user init */ |
532 | inhibit_user_init = 1; | |
533 | ||
224c49f9 JB |
534 | else if (! strcmp (argv[i], "-h") |
535 | || ! strcmp (argv[i], "--help")) | |
536 | { | |
537 | scm_shell_usage (0, 0); | |
538 | exit (0); | |
539 | } | |
540 | ||
541 | else if (! strcmp (argv[i], "-v") | |
542 | || ! strcmp (argv[i], "--version")) | |
543 | { | |
544 | /* Print version number. */ | |
545 | printf ("Guile %s\n" | |
0d46112f | 546 | "Copyright (c) 1995, 1996, 1997 Free Software Foundation\n" |
224c49f9 JB |
547 | "Guile may be distributed under the terms of the GNU General Public Licence;\n" |
548 | "certain other uses are permitted as well. For details, see the file\n" | |
549 | "`COPYING', which is included in the Guile distribution.\n" | |
550 | "There is no warranty, to the extent permitted by law.\n", | |
fef07353 | 551 | SCM_CHARS (scm_version ())); |
224c49f9 JB |
552 | exit (0); |
553 | } | |
554 | ||
555 | else | |
556 | { | |
557 | fprintf (stderr, "%s: Unrecognized switch `%s'\n", | |
558 | scm_usage_name, argv[i]); | |
559 | scm_shell_usage (1, 0); | |
560 | } | |
561 | } | |
562 | ||
563 | /* Check to make sure the -ds got a -s. */ | |
564 | if (do_script != SCM_EOL) | |
565 | scm_shell_usage (1, "the `-ds' switch requires the use of `-s' as well"); | |
566 | ||
567 | /* Make any remaining arguments available to the | |
568 | script/command/whatever. */ | |
28795b1f | 569 | scm_set_program_arguments (argc ? argc - i : 0, argv + i, argv0); |
224c49f9 JB |
570 | |
571 | /* If the --emacs switch was set, now is when we process it. */ | |
440e7b07 JB |
572 | { |
573 | SCM vcell = scm_sysintern0_no_module_lookup ("use-emacs-interface"); | |
156dcb09 | 574 | SCM_SETCDR (vcell, SCM_BOOL(use_emacs_interface)); |
440e7b07 | 575 | } |
224c49f9 JB |
576 | |
577 | /* Handle the `-e' switch, if it was specified. */ | |
578 | if (entry_point != SCM_EOL) | |
579 | tail = scm_cons (scm_cons2 (entry_point, | |
580 | scm_cons (sym_command_line, SCM_EOL), | |
581 | SCM_EOL), | |
582 | tail); | |
583 | ||
97c524bd | 584 | /* If we didn't end with a -c or a -s, start the repl. */ |
224c49f9 JB |
585 | if (interactive) |
586 | { | |
224c49f9 JB |
587 | tail = scm_cons (scm_cons (sym_top_repl, SCM_EOL), tail); |
588 | } | |
08fea088 GH |
589 | else |
590 | { | |
591 | /* After doing all the other actions prescribed by the command line, | |
592 | quit. */ | |
593 | tail = scm_cons (scm_cons (sym_quit, SCM_EOL), | |
6b8d19d3 | 594 | tail); |
e1a191a8 GH |
595 | /* Allow asyncs (signal handlers etc.) to be run. */ |
596 | scm_mask_ints = 0; | |
08fea088 | 597 | } |
224c49f9 | 598 | |
97c524bd MD |
599 | /* After the following line, actions will be added to the front. */ |
600 | tail = scm_reverse_x (tail, SCM_UNDEFINED); | |
601 | ||
602 | /* If we didn't end with a -c or a -s and didn't supply a -q, load | |
603 | the user's customization file. */ | |
604 | if (interactive && !inhibit_user_init) | |
605 | { | |
606 | tail = scm_cons (scm_cons (sym_load_user_init, SCM_EOL), tail); | |
607 | } | |
608 | ||
224c49f9 | 609 | { |
97c524bd | 610 | SCM val = scm_cons (sym_begin, tail); |
224c49f9 | 611 | |
ebe2a6c1 | 612 | #if 0 |
224c49f9 JB |
613 | scm_write (val, SCM_UNDEFINED); |
614 | scm_newline (SCM_UNDEFINED); | |
ebe2a6c1 | 615 | #endif |
224c49f9 JB |
616 | |
617 | return val; | |
618 | } | |
619 | } | |
620 | ||
621 | ||
622 | void | |
6e8d25a6 | 623 | scm_shell (int argc, char **argv) |
224c49f9 JB |
624 | { |
625 | /* If present, add SCSH-style meta-arguments from the top of the | |
626 | script file to the argument vector. See the SCSH manual: "The | |
627 | meta argument" for more details. */ | |
628 | { | |
629 | char **new_argv = scm_get_meta_args (argc, argv); | |
630 | ||
631 | if (new_argv) | |
632 | { | |
633 | argv = new_argv; | |
634 | argc = scm_count_argv (new_argv); | |
635 | } | |
636 | } | |
637 | ||
08fea088 | 638 | exit (scm_exit_status (scm_eval_x (scm_compile_shell_switches (argc,argv)))); |
224c49f9 JB |
639 | } |
640 | ||
641 | ||
642 | void | |
643 | scm_init_script () | |
644 | { | |
645 | #include "script.x" | |
646 | } |