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e6e2e95a | 1 | /* Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2001 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 | 47 | #include <stdio.h> |
e6e2e95a | 48 | #include <errno.h> |
224c49f9 | 49 | #include <ctype.h> |
e6e2e95a | 50 | |
a0599745 MD |
51 | #include "libguile/_scm.h" |
52 | #include "libguile/gh.h" | |
53 | #include "libguile/load.h" | |
54 | #include "libguile/version.h" | |
224c49f9 | 55 | |
db4b4ca6 | 56 | #include "libguile/validate.h" |
a0599745 | 57 | #include "libguile/script.h" |
224c49f9 | 58 | |
bd9e24b3 GH |
59 | #ifdef HAVE_STRING_H |
60 | #include <string.h> | |
61 | #endif | |
62 | ||
d3be4a7a | 63 | #ifdef HAVE_UNISTD_H |
224c49f9 | 64 | #include <unistd.h> /* for X_OK define */ |
224c49f9 JB |
65 | #endif |
66 | ||
67 | /* Concatentate str2 onto str1 at position n and return concatenated | |
68 | string if file exists; 0 otherwise. */ | |
69 | ||
70 | static char * | |
6e8d25a6 | 71 | scm_cat_path (char *str1, const char *str2, long n) |
224c49f9 JB |
72 | { |
73 | if (!n) | |
74 | n = strlen (str2); | |
75 | if (str1) | |
76 | { | |
77 | long len = strlen (str1); | |
78 | str1 = (char *) realloc (str1, (scm_sizet) (len + n + 1)); | |
79 | if (!str1) | |
80 | return 0L; | |
81 | strncat (str1 + len, str2, n); | |
82 | return str1; | |
83 | } | |
84 | str1 = (char *) malloc ((scm_sizet) (n + 1)); | |
85 | if (!str1) | |
86 | return 0L; | |
87 | str1[0] = 0; | |
88 | strncat (str1, str2, n); | |
89 | return str1; | |
90 | } | |
91 | ||
92 | #if 0 | |
93 | static char * | |
6e8d25a6 | 94 | scm_try_path (char *path) |
224c49f9 JB |
95 | { |
96 | FILE *f; | |
97 | /* fprintf(stderr, "Trying %s\n", path);fflush(stderr); */ | |
98 | if (!path) | |
99 | return 0L; | |
100 | SCM_SYSCALL (f = fopen (path, "r"); | |
101 | ); | |
102 | if (f) | |
103 | { | |
104 | fclose (f); | |
105 | return path; | |
106 | } | |
107 | free (path); | |
108 | return 0L; | |
109 | } | |
110 | ||
111 | static char * | |
6e8d25a6 | 112 | scm_sep_init_try (char *path, const char *sep, const char *initname) |
224c49f9 JB |
113 | { |
114 | if (path) | |
115 | path = scm_cat_path (path, sep, 0L); | |
116 | if (path) | |
117 | path = scm_cat_path (path, initname, 0L); | |
118 | return scm_try_path (path); | |
119 | } | |
120 | #endif | |
121 | ||
122 | #ifndef LINE_INCREMENTORS | |
123 | #define LINE_INCREMENTORS '\n' | |
124 | #ifdef MSDOS | |
125 | #define WHITE_SPACES ' ':case '\t':case '\r':case '\f':case 26 | |
126 | #else | |
127 | #define WHITE_SPACES ' ':case '\t':case '\r':case '\f' | |
128 | #endif /* def MSDOS */ | |
129 | #endif /* ndef LINE_INCREMENTORS */ | |
130 | ||
131 | #ifndef MAXPATHLEN | |
132 | #define MAXPATHLEN 80 | |
133 | #endif /* ndef MAXPATHLEN */ | |
134 | #ifndef X_OK | |
135 | #define X_OK 1 | |
136 | #endif /* ndef X_OK */ | |
137 | ||
224c49f9 | 138 | char * |
d3be4a7a | 139 | scm_find_executable (const char *name) |
224c49f9 JB |
140 | { |
141 | char tbuf[MAXPATHLEN]; | |
142 | int i = 0; | |
143 | FILE *f; | |
144 | ||
145 | /* fprintf(stderr, "s_f_e checking access %s ->%d\n", name, access(name, X_OK)); fflush(stderr); */ | |
146 | if (access (name, X_OK)) | |
147 | return 0L; | |
148 | f = fopen (name, "r"); | |
149 | if (!f) | |
150 | return 0L; | |
151 | if ((fgetc (f) == '#') && (fgetc (f) == '!')) | |
152 | { | |
153 | while (1) | |
154 | switch (tbuf[i++] = fgetc (f)) | |
155 | { | |
156 | case /*WHITE_SPACES */ ' ': | |
157 | case '\t': | |
158 | case '\r': | |
159 | case '\f': | |
160 | case EOF: | |
161 | tbuf[--i] = 0; | |
162 | fclose (f); | |
163 | return scm_cat_path (0L, tbuf, 0L); | |
164 | } | |
165 | } | |
166 | fclose (f); | |
167 | return scm_cat_path (0L, name, 0L); | |
168 | } | |
224c49f9 | 169 | |
224c49f9 JB |
170 | |
171 | /* Read a \nnn-style escape. We've just read the backslash. */ | |
172 | static int | |
6e8d25a6 | 173 | script_get_octal (FILE *f) |
db4b4ca6 | 174 | #define FUNC_NAME "script_get_octal" |
224c49f9 JB |
175 | { |
176 | int i; | |
177 | int value = 0; | |
178 | ||
179 | for (i = 0; i < 3; i++) | |
180 | { | |
181 | int c = getc (f); | |
182 | if ('0' <= c && c <= '7') | |
183 | value = (value * 8) + (c - '0'); | |
184 | else | |
db4b4ca6 DH |
185 | SCM_MISC_ERROR ("malformed script: bad octal backslash escape", |
186 | SCM_EOL); | |
224c49f9 JB |
187 | } |
188 | return value; | |
189 | } | |
db4b4ca6 | 190 | #undef FUNC_NAME |
224c49f9 JB |
191 | |
192 | ||
193 | static int | |
6e8d25a6 | 194 | script_get_backslash (FILE *f) |
db4b4ca6 | 195 | #define FUNC_NAME "script_get_backslash" |
224c49f9 JB |
196 | { |
197 | int c = getc (f); | |
198 | ||
199 | switch (c) | |
200 | { | |
201 | case 'a': return '\a'; | |
202 | case 'b': return '\b'; | |
203 | case 'f': return '\f'; | |
204 | case 'n': return '\n'; | |
205 | case 'r': return '\r'; | |
206 | case 't': return '\t'; | |
207 | case 'v': return '\v'; | |
208 | ||
209 | case '\\': | |
210 | case ' ': | |
211 | case '\t': | |
212 | case '\n': | |
213 | return c; | |
214 | ||
215 | case '0': case '1': case '2': case '3': | |
216 | case '4': case '5': case '6': case '7': | |
217 | ungetc (c, f); | |
218 | return script_get_octal (f); | |
db4b4ca6 | 219 | |
224c49f9 | 220 | case EOF: |
db4b4ca6 | 221 | SCM_MISC_ERROR ("malformed script: backslash followed by EOF", SCM_EOL); |
224c49f9 JB |
222 | return 0; /* not reached? */ |
223 | ||
224 | default: | |
db4b4ca6 | 225 | SCM_MISC_ERROR ("malformed script: bad backslash sequence", SCM_EOL); |
224c49f9 JB |
226 | return 0; /* not reached? */ |
227 | } | |
228 | } | |
db4b4ca6 | 229 | #undef FUNC_NAME |
224c49f9 JB |
230 | |
231 | ||
232 | static char * | |
6e8d25a6 | 233 | script_read_arg (FILE *f) |
db4b4ca6 | 234 | #define FUNC_NAME "script_read_arg" |
224c49f9 JB |
235 | { |
236 | int size = 7; | |
237 | char *buf = malloc (size + 1); | |
238 | int len = 0; | |
239 | ||
240 | if (! buf) | |
241 | return 0; | |
242 | ||
243 | for (;;) | |
244 | { | |
245 | int c = getc (f); | |
246 | switch (c) | |
247 | { | |
248 | case '\\': | |
249 | c = script_get_backslash (f); | |
250 | /* The above produces a new character to add to the argument. | |
251 | Fall through. */ | |
252 | default: | |
253 | if (len >= size) | |
254 | { | |
255 | size = (size + 1) * 2; | |
256 | buf = realloc (buf, size); | |
257 | if (! buf) | |
258 | return 0; | |
259 | } | |
260 | buf[len++] = c; | |
261 | break; | |
262 | ||
263 | case '\n': | |
264 | /* This may terminate an arg now, but it will terminate the | |
265 | entire list next time through. */ | |
266 | ungetc ('\n', f); | |
267 | case EOF: | |
268 | if (len == 0) | |
269 | { | |
270 | free (buf); | |
271 | return 0; | |
272 | } | |
273 | /* Otherwise, those characters terminate the argument; fall | |
274 | through. */ | |
275 | case ' ': | |
276 | buf[len] = '\0'; | |
277 | return buf; | |
278 | ||
279 | case '\t': | |
280 | free (buf); | |
db4b4ca6 | 281 | SCM_MISC_ERROR ("malformed script: TAB in meta-arguments", SCM_EOL); |
224c49f9 JB |
282 | return 0; /* not reached? */ |
283 | } | |
284 | } | |
285 | } | |
db4b4ca6 | 286 | #undef FUNC_NAME |
224c49f9 JB |
287 | |
288 | ||
289 | static int | |
6e8d25a6 | 290 | script_meta_arg_P (char *arg) |
224c49f9 JB |
291 | { |
292 | if ('\\' != arg[0]) | |
293 | return 0L; | |
294 | #ifdef MSDOS | |
295 | return !arg[1]; | |
296 | #else | |
297 | switch (arg[1]) | |
298 | { | |
299 | case 0: | |
300 | case '%': | |
301 | case WHITE_SPACES: | |
302 | return !0; | |
303 | default: | |
304 | return 0L; | |
305 | } | |
306 | #endif | |
307 | } | |
308 | ||
309 | char ** | |
6e8d25a6 | 310 | scm_get_meta_args (int argc, char **argv) |
224c49f9 JB |
311 | { |
312 | int nargc = argc, argi = 1, nargi = 1; | |
313 | char *narg, **nargv; | |
314 | if (!(argc > 2 && script_meta_arg_P (argv[1]))) | |
315 | return 0L; | |
316 | if (!(nargv = (char **) malloc ((1 + nargc) * sizeof (char *)))) | |
317 | return 0L; | |
318 | nargv[0] = argv[0]; | |
319 | while (((argi + 1) < argc) && (script_meta_arg_P (argv[argi]))) | |
320 | { | |
321 | FILE *f = fopen (argv[++argi], "r"); | |
322 | if (f) | |
323 | { | |
324 | nargc--; /* to compensate for replacement of '\\' */ | |
325 | while (1) | |
326 | switch (getc (f)) | |
327 | { | |
328 | case EOF: | |
329 | return 0L; | |
330 | default: | |
331 | continue; | |
332 | case '\n': | |
333 | goto found_args; | |
334 | } | |
335 | found_args: | |
336 | while ((narg = script_read_arg (f))) | |
337 | if (!(nargv = (char **) realloc (nargv, | |
338 | (1 + ++nargc) * sizeof (char *)))) | |
339 | return 0L; | |
340 | else | |
341 | nargv[nargi++] = narg; | |
342 | fclose (f); | |
343 | nargv[nargi++] = argv[argi++]; | |
344 | } | |
345 | } | |
346 | while (argi <= argc) | |
347 | nargv[nargi++] = argv[argi++]; | |
348 | return nargv; | |
349 | } | |
350 | ||
351 | int | |
6e8d25a6 | 352 | scm_count_argv (char **argv) |
224c49f9 JB |
353 | { |
354 | int argc = 0; | |
355 | while (argv[argc]) | |
356 | argc++; | |
357 | return argc; | |
358 | } | |
359 | ||
360 | ||
361 | /* For use in error messages. */ | |
362 | char *scm_usage_name = 0; | |
363 | ||
364 | void | |
365 | scm_shell_usage (int fatal, char *message) | |
366 | { | |
367 | if (message) | |
368 | fprintf (stderr, "%s\n", message); | |
369 | ||
370 | fprintf (stderr, | |
371 | "Usage: %s OPTION ...\n" | |
372 | "Evaluate Scheme code, interactively or from a script.\n" | |
373 | "\n" | |
374 | " -s SCRIPT load Scheme source code from FILE, and exit\n" | |
375 | " -c EXPR evalute Scheme expression EXPR, and exit\n" | |
376 | " -- stop scanning arguments; run interactively\n" | |
377 | "The above switches stop argument processing, and pass all\n" | |
378 | "remaining arguments as the value of (command-line).\n" | |
379 | "\n" | |
380 | " -l FILE load Scheme source code from FILE\n" | |
381 | " -e FUNCTION after reading script, apply FUNCTION to\n" | |
382 | " command line arguments\n" | |
383 | " -ds do -s script at this point\n" | |
d150e491 | 384 | " --debug start with debugging evaluator and backtraces\n" |
97c524bd | 385 | " -q inhibit loading of user init file\n" |
224c49f9 | 386 | " --emacs enable Emacs protocol (experimental)\n" |
39cde5c5 MG |
387 | " --use-srfi=LS load SRFI modules for the SRFIs in LS,\n" |
388 | " which is a list of numbers like \"2,13,14\"\n" | |
224c49f9 JB |
389 | " -h, --help display this help and exit\n" |
390 | " -v, --version display version information and exit\n" | |
391 | " \\ read arguments from following script lines\n", | |
392 | scm_usage_name); | |
393 | ||
394 | if (fatal) | |
8e568309 | 395 | exit (fatal); |
224c49f9 JB |
396 | } |
397 | ||
398 | ||
399 | /* Some symbols used by the command-line compiler. */ | |
400 | SCM_SYMBOL (sym_load, "load"); | |
401 | SCM_SYMBOL (sym_eval_string, "eval-string"); | |
402 | SCM_SYMBOL (sym_command_line, "command-line"); | |
403 | SCM_SYMBOL (sym_begin, "begin"); | |
404 | SCM_SYMBOL (sym_load_user_init, "load-user-init"); | |
405 | SCM_SYMBOL (sym_top_repl, "top-repl"); | |
406 | SCM_SYMBOL (sym_quit, "quit"); | |
39cde5c5 | 407 | SCM_SYMBOL (sym_use_srfis, "use-srfis"); |
224c49f9 JB |
408 | |
409 | ||
410 | /* Given an array of command-line switches, return a Scheme expression | |
411 | to carry out the actions specified by the switches. | |
412 | ||
413 | If you told me this should have been written in Scheme, I'd | |
414 | probably agree. I'd say I didn't feel comfortable doing that in | |
415 | the present system. You'd say, well, fix the system so you are | |
416 | comfortable doing that. I'd agree again. *shrug* | |
ac16426b | 417 | */ |
224c49f9 | 418 | |
1abb11b6 MD |
419 | static char guile[] = "guile"; |
420 | ||
224c49f9 JB |
421 | SCM |
422 | scm_compile_shell_switches (int argc, char **argv) | |
423 | { | |
424 | SCM tail = SCM_EOL; /* We accumulate the list backwards, | |
425 | and then reverse! it before we | |
426 | return it. */ | |
427 | SCM do_script = SCM_EOL; /* The element of the list containing | |
428 | the "load" command, in case we get | |
429 | the "-ds" switch. */ | |
430 | SCM entry_point = SCM_EOL; /* for -e switch */ | |
431 | int interactive = 1; /* Should we go interactive when done? */ | |
97c524bd | 432 | int inhibit_user_init = 0; /* Don't load user init file */ |
224c49f9 JB |
433 | int use_emacs_interface = 0; |
434 | int i; | |
1abb11b6 | 435 | char *argv0 = guile; |
224c49f9 JB |
436 | |
437 | if (argc > 0) | |
438 | { | |
d0e32dd5 | 439 | argv0 = argv[0]; |
224c49f9 JB |
440 | scm_usage_name = strrchr (argv[0], '/'); |
441 | if (! scm_usage_name) | |
442 | scm_usage_name = argv[0]; | |
443 | else | |
444 | scm_usage_name++; | |
445 | } | |
446 | if (! scm_usage_name) | |
1abb11b6 | 447 | scm_usage_name = guile; |
224c49f9 JB |
448 | |
449 | for (i = 1; i < argc; i++) | |
450 | { | |
451 | if (! strcmp (argv[i], "-s")) /* load script */ | |
452 | { | |
453 | if (++i >= argc) | |
454 | scm_shell_usage (1, "missing argument to `-s' switch"); | |
455 | ||
456 | /* If we specified the -ds option, do_script points to the | |
457 | cdr of an expression like (load #f); we replace the car | |
458 | (i.e., the #f) with the script name. */ | |
54778cd3 | 459 | if (!SCM_NULLP (do_script)) |
224c49f9 JB |
460 | { |
461 | SCM_SETCAR (do_script, scm_makfrom0str (argv[i])); | |
462 | do_script = SCM_EOL; | |
463 | } | |
464 | else | |
465 | /* Construct an application of LOAD to the script name. */ | |
466 | tail = scm_cons (scm_cons2 (sym_load, | |
467 | scm_makfrom0str (argv[i]), | |
468 | SCM_EOL), | |
469 | tail); | |
470 | argv0 = argv[i]; | |
471 | i++; | |
472 | interactive = 0; | |
473 | break; | |
474 | } | |
475 | ||
476 | else if (! strcmp (argv[i], "-c")) /* evaluate expr */ | |
477 | { | |
478 | if (++i >= argc) | |
479 | scm_shell_usage (1, "missing argument to `-c' switch"); | |
480 | tail = scm_cons (scm_cons2 (sym_eval_string, | |
481 | scm_makfrom0str (argv[i]), | |
482 | SCM_EOL), | |
483 | tail); | |
484 | i++; | |
485 | interactive = 0; | |
486 | break; | |
487 | } | |
488 | ||
489 | else if (! strcmp (argv[i], "--")) /* end args; go interactive */ | |
490 | { | |
491 | i++; | |
492 | break; | |
493 | } | |
494 | ||
495 | else if (! strcmp (argv[i], "-l")) /* load a file */ | |
496 | { | |
497 | if (++i < argc) | |
498 | tail = scm_cons (scm_cons2 (sym_load, | |
499 | scm_makfrom0str (argv[i]), | |
500 | SCM_EOL), | |
501 | tail); | |
502 | else | |
503 | scm_shell_usage (1, "missing argument to `-l' switch"); | |
504 | } | |
505 | ||
506 | else if (! strcmp (argv[i], "-e")) /* entry point */ | |
507 | { | |
508 | if (++i < argc) | |
509 | entry_point = gh_symbol2scm (argv[i]); | |
510 | else | |
511 | scm_shell_usage (1, "missing argument to `-e' switch"); | |
512 | } | |
513 | ||
514 | else if (! strcmp (argv[i], "-ds")) /* do script here */ | |
515 | { | |
516 | /* We put a dummy "load" expression, and let the -s put the | |
517 | filename in. */ | |
54778cd3 | 518 | if (!SCM_NULLP (do_script)) |
224c49f9 JB |
519 | scm_shell_usage (1, "the -ds switch may only be specified once"); |
520 | do_script = scm_cons (SCM_BOOL_F, SCM_EOL); | |
521 | tail = scm_cons (scm_cons (sym_load, do_script), | |
522 | tail); | |
523 | } | |
524 | ||
d150e491 MD |
525 | else if (! strcmp (argv[i], "--debug")) /* debug eval + backtraces */ |
526 | { | |
527 | SCM_DEVAL_P = 1; | |
528 | SCM_BACKTRACE_P = 1; | |
1dafc56a | 529 | SCM_RECORD_POSITIONS_P = 1; |
d150e491 MD |
530 | SCM_RESET_DEBUG_MODE; |
531 | } | |
532 | ||
224c49f9 JB |
533 | else if (! strcmp (argv[i], "--emacs")) /* use emacs protocol */ |
534 | use_emacs_interface = 1; | |
535 | ||
97c524bd MD |
536 | else if (! strcmp (argv[i], "-q")) /* don't load user init */ |
537 | inhibit_user_init = 1; | |
538 | ||
39cde5c5 MG |
539 | else if (! strncmp (argv[i], "--use-srfi=", 11)) /* load SRFIs */ |
540 | { | |
541 | SCM srfis = SCM_EOL; /* List of requested SRFIs. */ | |
542 | char * p = argv[i] + 11; | |
543 | while (*p) | |
544 | { | |
545 | long num; | |
546 | char * end; | |
547 | ||
548 | num = strtol (p, &end, 10); | |
549 | if (end - p > 0) | |
550 | { | |
551 | srfis = scm_cons (scm_long2num (num), srfis); | |
552 | if (*end) | |
553 | { | |
554 | if (*end == ',') | |
555 | p = end + 1; | |
556 | else | |
557 | scm_shell_usage (1, "invalid SRFI specification"); | |
558 | } | |
559 | else | |
560 | break; | |
561 | } | |
562 | else | |
563 | scm_shell_usage (1, "invalid SRFI specification"); | |
564 | } | |
565 | if (scm_ilength (srfis) <= 0) | |
566 | scm_shell_usage (1, "invalid SRFI specification"); | |
567 | srfis = scm_reverse_x (srfis, SCM_UNDEFINED); | |
568 | tail = scm_cons (scm_listify | |
569 | (sym_use_srfis, | |
570 | scm_listify (scm_sym_quote, | |
571 | srfis, SCM_UNDEFINED), | |
572 | SCM_UNDEFINED), | |
573 | tail); | |
574 | } | |
575 | ||
224c49f9 JB |
576 | else if (! strcmp (argv[i], "-h") |
577 | || ! strcmp (argv[i], "--help")) | |
578 | { | |
579 | scm_shell_usage (0, 0); | |
580 | exit (0); | |
581 | } | |
582 | ||
583 | else if (! strcmp (argv[i], "-v") | |
584 | || ! strcmp (argv[i], "--version")) | |
585 | { | |
586 | /* Print version number. */ | |
587 | printf ("Guile %s\n" | |
f2c9fcb0 | 588 | "Copyright (c) 1995, 1996, 1997, 2000 Free Software Foundation\n" |
224c49f9 JB |
589 | "Guile may be distributed under the terms of the GNU General Public Licence;\n" |
590 | "certain other uses are permitted as well. For details, see the file\n" | |
591 | "`COPYING', which is included in the Guile distribution.\n" | |
592 | "There is no warranty, to the extent permitted by law.\n", | |
86c991c2 | 593 | SCM_STRING_CHARS (scm_version ())); |
224c49f9 JB |
594 | exit (0); |
595 | } | |
596 | ||
597 | else | |
598 | { | |
599 | fprintf (stderr, "%s: Unrecognized switch `%s'\n", | |
600 | scm_usage_name, argv[i]); | |
601 | scm_shell_usage (1, 0); | |
602 | } | |
603 | } | |
604 | ||
605 | /* Check to make sure the -ds got a -s. */ | |
54778cd3 | 606 | if (!SCM_NULLP (do_script)) |
224c49f9 JB |
607 | scm_shell_usage (1, "the `-ds' switch requires the use of `-s' as well"); |
608 | ||
609 | /* Make any remaining arguments available to the | |
610 | script/command/whatever. */ | |
28795b1f | 611 | scm_set_program_arguments (argc ? argc - i : 0, argv + i, argv0); |
224c49f9 JB |
612 | |
613 | /* If the --emacs switch was set, now is when we process it. */ | |
86d31dfe | 614 | scm_c_define ("use-emacs-interface", SCM_BOOL (use_emacs_interface)); |
224c49f9 JB |
615 | |
616 | /* Handle the `-e' switch, if it was specified. */ | |
54778cd3 | 617 | if (!SCM_NULLP (entry_point)) |
224c49f9 JB |
618 | tail = scm_cons (scm_cons2 (entry_point, |
619 | scm_cons (sym_command_line, SCM_EOL), | |
620 | SCM_EOL), | |
621 | tail); | |
622 | ||
97c524bd | 623 | /* If we didn't end with a -c or a -s, start the repl. */ |
224c49f9 JB |
624 | if (interactive) |
625 | { | |
224c49f9 JB |
626 | tail = scm_cons (scm_cons (sym_top_repl, SCM_EOL), tail); |
627 | } | |
08fea088 GH |
628 | else |
629 | { | |
630 | /* After doing all the other actions prescribed by the command line, | |
631 | quit. */ | |
632 | tail = scm_cons (scm_cons (sym_quit, SCM_EOL), | |
6b8d19d3 | 633 | tail); |
e1a191a8 GH |
634 | /* Allow asyncs (signal handlers etc.) to be run. */ |
635 | scm_mask_ints = 0; | |
08fea088 | 636 | } |
224c49f9 | 637 | |
97c524bd MD |
638 | /* After the following line, actions will be added to the front. */ |
639 | tail = scm_reverse_x (tail, SCM_UNDEFINED); | |
640 | ||
641 | /* If we didn't end with a -c or a -s and didn't supply a -q, load | |
642 | the user's customization file. */ | |
643 | if (interactive && !inhibit_user_init) | |
644 | { | |
645 | tail = scm_cons (scm_cons (sym_load_user_init, SCM_EOL), tail); | |
646 | } | |
647 | ||
224c49f9 | 648 | { |
97c524bd | 649 | SCM val = scm_cons (sym_begin, tail); |
224c49f9 | 650 | |
ebe2a6c1 | 651 | #if 0 |
224c49f9 JB |
652 | scm_write (val, SCM_UNDEFINED); |
653 | scm_newline (SCM_UNDEFINED); | |
ebe2a6c1 | 654 | #endif |
224c49f9 JB |
655 | |
656 | return val; | |
657 | } | |
658 | } | |
659 | ||
660 | ||
661 | void | |
6e8d25a6 | 662 | scm_shell (int argc, char **argv) |
224c49f9 JB |
663 | { |
664 | /* If present, add SCSH-style meta-arguments from the top of the | |
665 | script file to the argument vector. See the SCSH manual: "The | |
666 | meta argument" for more details. */ | |
667 | { | |
668 | char **new_argv = scm_get_meta_args (argc, argv); | |
669 | ||
670 | if (new_argv) | |
671 | { | |
672 | argv = new_argv; | |
673 | argc = scm_count_argv (new_argv); | |
674 | } | |
675 | } | |
676 | ||
b3138544 | 677 | exit (scm_exit_status (scm_eval_x (scm_compile_shell_switches (argc, argv), |
deec8fc2 | 678 | scm_current_module ()))); |
224c49f9 JB |
679 | } |
680 | ||
681 | ||
682 | void | |
683 | scm_init_script () | |
684 | { | |
8dc9439f | 685 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 686 | #include "libguile/script.x" |
8dc9439f | 687 | #endif |
224c49f9 | 688 | } |
89e00824 ML |
689 | |
690 | /* | |
691 | Local Variables: | |
692 | c-file-style: "gnu" | |
693 | End: | |
694 | */ |