Commit | Line | Data |
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48dc9f34 | 1 | /* Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. |
73be1d9e MV |
2 | * This library is free software; you can redistribute it and/or |
3 | * modify it under the terms of the GNU Lesser General Public | |
4 | * License as published by the Free Software Foundation; either | |
5 | * version 2.1 of the License, or (at your option) any later version. | |
224c49f9 | 6 | * |
73be1d9e MV |
7 | * This library 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 GNU | |
10 | * Lesser General Public License for more details. | |
224c49f9 | 11 | * |
73be1d9e MV |
12 | * You should have received a copy of the GNU Lesser General Public |
13 | * License along with this library; if not, write to the Free Software | |
14 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
15 | */ | |
224c49f9 JB |
16 | |
17 | /* "script.c" argv tricks for `#!' scripts. | |
d3be4a7a | 18 | Authors: Aubrey Jaffer and Jim Blandy */ |
224c49f9 | 19 | |
773ca93e RB |
20 | #if HAVE_CONFIG_H |
21 | # include <config.h> | |
22 | #endif | |
6e8d25a6 | 23 | |
224c49f9 | 24 | #include <stdio.h> |
e6e2e95a | 25 | #include <errno.h> |
224c49f9 | 26 | #include <ctype.h> |
e6e2e95a | 27 | |
a0599745 MD |
28 | #include "libguile/_scm.h" |
29 | #include "libguile/gh.h" | |
30 | #include "libguile/load.h" | |
31 | #include "libguile/version.h" | |
224c49f9 | 32 | |
db4b4ca6 | 33 | #include "libguile/validate.h" |
a0599745 | 34 | #include "libguile/script.h" |
224c49f9 | 35 | |
bd9e24b3 GH |
36 | #ifdef HAVE_STRING_H |
37 | #include <string.h> | |
38 | #endif | |
39 | ||
d3be4a7a | 40 | #ifdef HAVE_UNISTD_H |
224c49f9 | 41 | #include <unistd.h> /* for X_OK define */ |
224c49f9 JB |
42 | #endif |
43 | ||
7beabedb MG |
44 | #ifdef HAVE_IO_H |
45 | #include <io.h> | |
46 | #endif | |
47 | ||
224c49f9 JB |
48 | /* Concatentate str2 onto str1 at position n and return concatenated |
49 | string if file exists; 0 otherwise. */ | |
50 | ||
51 | static char * | |
6e8d25a6 | 52 | scm_cat_path (char *str1, const char *str2, long n) |
224c49f9 JB |
53 | { |
54 | if (!n) | |
55 | n = strlen (str2); | |
56 | if (str1) | |
57 | { | |
1be6b49c ML |
58 | size_t len = strlen (str1); |
59 | str1 = (char *) realloc (str1, (size_t) (len + n + 1)); | |
224c49f9 JB |
60 | if (!str1) |
61 | return 0L; | |
62 | strncat (str1 + len, str2, n); | |
63 | return str1; | |
64 | } | |
67329a9e | 65 | str1 = (char *) scm_malloc ((size_t) (n + 1)); |
224c49f9 JB |
66 | if (!str1) |
67 | return 0L; | |
68 | str1[0] = 0; | |
69 | strncat (str1, str2, n); | |
70 | return str1; | |
71 | } | |
72 | ||
73 | #if 0 | |
74 | static char * | |
6e8d25a6 | 75 | scm_try_path (char *path) |
224c49f9 JB |
76 | { |
77 | FILE *f; | |
78 | /* fprintf(stderr, "Trying %s\n", path);fflush(stderr); */ | |
79 | if (!path) | |
80 | return 0L; | |
81 | SCM_SYSCALL (f = fopen (path, "r"); | |
82 | ); | |
83 | if (f) | |
84 | { | |
85 | fclose (f); | |
86 | return path; | |
87 | } | |
88 | free (path); | |
89 | return 0L; | |
90 | } | |
91 | ||
92 | static char * | |
6e8d25a6 | 93 | scm_sep_init_try (char *path, const char *sep, const char *initname) |
224c49f9 JB |
94 | { |
95 | if (path) | |
96 | path = scm_cat_path (path, sep, 0L); | |
97 | if (path) | |
98 | path = scm_cat_path (path, initname, 0L); | |
99 | return scm_try_path (path); | |
100 | } | |
101 | #endif | |
102 | ||
103 | #ifndef LINE_INCREMENTORS | |
104 | #define LINE_INCREMENTORS '\n' | |
105 | #ifdef MSDOS | |
106 | #define WHITE_SPACES ' ':case '\t':case '\r':case '\f':case 26 | |
107 | #else | |
108 | #define WHITE_SPACES ' ':case '\t':case '\r':case '\f' | |
109 | #endif /* def MSDOS */ | |
110 | #endif /* ndef LINE_INCREMENTORS */ | |
111 | ||
112 | #ifndef MAXPATHLEN | |
113 | #define MAXPATHLEN 80 | |
114 | #endif /* ndef MAXPATHLEN */ | |
115 | #ifndef X_OK | |
116 | #define X_OK 1 | |
117 | #endif /* ndef X_OK */ | |
118 | ||
224c49f9 | 119 | char * |
d3be4a7a | 120 | scm_find_executable (const char *name) |
224c49f9 JB |
121 | { |
122 | char tbuf[MAXPATHLEN]; | |
123 | int i = 0; | |
124 | FILE *f; | |
125 | ||
126 | /* fprintf(stderr, "s_f_e checking access %s ->%d\n", name, access(name, X_OK)); fflush(stderr); */ | |
127 | if (access (name, X_OK)) | |
128 | return 0L; | |
129 | f = fopen (name, "r"); | |
130 | if (!f) | |
131 | return 0L; | |
132 | if ((fgetc (f) == '#') && (fgetc (f) == '!')) | |
133 | { | |
134 | while (1) | |
135 | switch (tbuf[i++] = fgetc (f)) | |
136 | { | |
137 | case /*WHITE_SPACES */ ' ': | |
138 | case '\t': | |
139 | case '\r': | |
140 | case '\f': | |
141 | case EOF: | |
142 | tbuf[--i] = 0; | |
143 | fclose (f); | |
144 | return scm_cat_path (0L, tbuf, 0L); | |
145 | } | |
146 | } | |
147 | fclose (f); | |
148 | return scm_cat_path (0L, name, 0L); | |
149 | } | |
224c49f9 | 150 | |
224c49f9 JB |
151 | |
152 | /* Read a \nnn-style escape. We've just read the backslash. */ | |
153 | static int | |
6e8d25a6 | 154 | script_get_octal (FILE *f) |
db4b4ca6 | 155 | #define FUNC_NAME "script_get_octal" |
224c49f9 JB |
156 | { |
157 | int i; | |
158 | int value = 0; | |
159 | ||
160 | for (i = 0; i < 3; i++) | |
161 | { | |
162 | int c = getc (f); | |
163 | if ('0' <= c && c <= '7') | |
164 | value = (value * 8) + (c - '0'); | |
165 | else | |
db4b4ca6 DH |
166 | SCM_MISC_ERROR ("malformed script: bad octal backslash escape", |
167 | SCM_EOL); | |
224c49f9 JB |
168 | } |
169 | return value; | |
170 | } | |
db4b4ca6 | 171 | #undef FUNC_NAME |
224c49f9 JB |
172 | |
173 | ||
174 | static int | |
6e8d25a6 | 175 | script_get_backslash (FILE *f) |
db4b4ca6 | 176 | #define FUNC_NAME "script_get_backslash" |
224c49f9 JB |
177 | { |
178 | int c = getc (f); | |
179 | ||
180 | switch (c) | |
181 | { | |
182 | case 'a': return '\a'; | |
183 | case 'b': return '\b'; | |
184 | case 'f': return '\f'; | |
185 | case 'n': return '\n'; | |
186 | case 'r': return '\r'; | |
187 | case 't': return '\t'; | |
188 | case 'v': return '\v'; | |
189 | ||
190 | case '\\': | |
191 | case ' ': | |
192 | case '\t': | |
193 | case '\n': | |
194 | return c; | |
195 | ||
196 | case '0': case '1': case '2': case '3': | |
197 | case '4': case '5': case '6': case '7': | |
198 | ungetc (c, f); | |
199 | return script_get_octal (f); | |
db4b4ca6 | 200 | |
224c49f9 | 201 | case EOF: |
db4b4ca6 | 202 | SCM_MISC_ERROR ("malformed script: backslash followed by EOF", SCM_EOL); |
224c49f9 JB |
203 | return 0; /* not reached? */ |
204 | ||
205 | default: | |
db4b4ca6 | 206 | SCM_MISC_ERROR ("malformed script: bad backslash sequence", SCM_EOL); |
224c49f9 JB |
207 | return 0; /* not reached? */ |
208 | } | |
209 | } | |
db4b4ca6 | 210 | #undef FUNC_NAME |
224c49f9 JB |
211 | |
212 | ||
213 | static char * | |
6e8d25a6 | 214 | script_read_arg (FILE *f) |
db4b4ca6 | 215 | #define FUNC_NAME "script_read_arg" |
224c49f9 | 216 | { |
1be6b49c | 217 | size_t size = 7; |
67329a9e | 218 | char *buf = scm_malloc (size + 1); |
1be6b49c | 219 | size_t len = 0; |
224c49f9 JB |
220 | |
221 | if (! buf) | |
222 | return 0; | |
223 | ||
224 | for (;;) | |
225 | { | |
226 | int c = getc (f); | |
227 | switch (c) | |
228 | { | |
229 | case '\\': | |
230 | c = script_get_backslash (f); | |
231 | /* The above produces a new character to add to the argument. | |
232 | Fall through. */ | |
233 | default: | |
234 | if (len >= size) | |
235 | { | |
236 | size = (size + 1) * 2; | |
237 | buf = realloc (buf, size); | |
238 | if (! buf) | |
239 | return 0; | |
240 | } | |
241 | buf[len++] = c; | |
242 | break; | |
243 | ||
244 | case '\n': | |
245 | /* This may terminate an arg now, but it will terminate the | |
246 | entire list next time through. */ | |
247 | ungetc ('\n', f); | |
248 | case EOF: | |
249 | if (len == 0) | |
250 | { | |
251 | free (buf); | |
252 | return 0; | |
253 | } | |
254 | /* Otherwise, those characters terminate the argument; fall | |
255 | through. */ | |
256 | case ' ': | |
257 | buf[len] = '\0'; | |
258 | return buf; | |
259 | ||
260 | case '\t': | |
261 | free (buf); | |
db4b4ca6 | 262 | SCM_MISC_ERROR ("malformed script: TAB in meta-arguments", SCM_EOL); |
224c49f9 JB |
263 | return 0; /* not reached? */ |
264 | } | |
265 | } | |
266 | } | |
db4b4ca6 | 267 | #undef FUNC_NAME |
224c49f9 JB |
268 | |
269 | ||
270 | static int | |
6e8d25a6 | 271 | script_meta_arg_P (char *arg) |
224c49f9 JB |
272 | { |
273 | if ('\\' != arg[0]) | |
274 | return 0L; | |
275 | #ifdef MSDOS | |
276 | return !arg[1]; | |
277 | #else | |
278 | switch (arg[1]) | |
279 | { | |
280 | case 0: | |
281 | case '%': | |
282 | case WHITE_SPACES: | |
283 | return !0; | |
284 | default: | |
285 | return 0L; | |
286 | } | |
287 | #endif | |
288 | } | |
289 | ||
290 | char ** | |
6e8d25a6 | 291 | scm_get_meta_args (int argc, char **argv) |
224c49f9 JB |
292 | { |
293 | int nargc = argc, argi = 1, nargi = 1; | |
294 | char *narg, **nargv; | |
295 | if (!(argc > 2 && script_meta_arg_P (argv[1]))) | |
296 | return 0L; | |
67329a9e | 297 | if (!(nargv = (char **) scm_malloc ((1 + nargc) * sizeof (char *)))) |
224c49f9 JB |
298 | return 0L; |
299 | nargv[0] = argv[0]; | |
300 | while (((argi + 1) < argc) && (script_meta_arg_P (argv[argi]))) | |
301 | { | |
302 | FILE *f = fopen (argv[++argi], "r"); | |
303 | if (f) | |
304 | { | |
305 | nargc--; /* to compensate for replacement of '\\' */ | |
306 | while (1) | |
307 | switch (getc (f)) | |
308 | { | |
309 | case EOF: | |
310 | return 0L; | |
311 | default: | |
312 | continue; | |
313 | case '\n': | |
314 | goto found_args; | |
315 | } | |
316 | found_args: | |
317 | while ((narg = script_read_arg (f))) | |
318 | if (!(nargv = (char **) realloc (nargv, | |
319 | (1 + ++nargc) * sizeof (char *)))) | |
320 | return 0L; | |
321 | else | |
322 | nargv[nargi++] = narg; | |
323 | fclose (f); | |
324 | nargv[nargi++] = argv[argi++]; | |
325 | } | |
326 | } | |
327 | while (argi <= argc) | |
328 | nargv[nargi++] = argv[argi++]; | |
329 | return nargv; | |
330 | } | |
331 | ||
332 | int | |
6e8d25a6 | 333 | scm_count_argv (char **argv) |
224c49f9 JB |
334 | { |
335 | int argc = 0; | |
336 | while (argv[argc]) | |
337 | argc++; | |
338 | return argc; | |
339 | } | |
340 | ||
341 | ||
342 | /* For use in error messages. */ | |
343 | char *scm_usage_name = 0; | |
344 | ||
345 | void | |
346 | scm_shell_usage (int fatal, char *message) | |
347 | { | |
48dc9f34 KR |
348 | FILE *fp = (fatal ? stderr : stdout); |
349 | ||
224c49f9 | 350 | if (message) |
48dc9f34 | 351 | fprintf (fp, "%s\n", message); |
224c49f9 | 352 | |
48dc9f34 | 353 | fprintf (fp, |
224c49f9 JB |
354 | "Usage: %s OPTION ...\n" |
355 | "Evaluate Scheme code, interactively or from a script.\n" | |
356 | "\n" | |
defdc4b4 | 357 | " [-s] FILE load Scheme source code from FILE, and exit\n" |
224c49f9 JB |
358 | " -c EXPR evalute Scheme expression EXPR, and exit\n" |
359 | " -- stop scanning arguments; run interactively\n" | |
360 | "The above switches stop argument processing, and pass all\n" | |
361 | "remaining arguments as the value of (command-line).\n" | |
defdc4b4 | 362 | "If FILE begins with `-' the -s switch is mandatory.\n" |
224c49f9 JB |
363 | "\n" |
364 | " -l FILE load Scheme source code from FILE\n" | |
365 | " -e FUNCTION after reading script, apply FUNCTION to\n" | |
366 | " command line arguments\n" | |
367 | " -ds do -s script at this point\n" | |
d150e491 | 368 | " --debug start with debugging evaluator and backtraces\n" |
3682a51a MV |
369 | " --no-debug start with normal evaluator\n" |
370 | " Default is to enable debugging for interactive\n" | |
371 | " use, but not for `-s' and `-c'.\n" | |
97c524bd | 372 | " -q inhibit loading of user init file\n" |
224c49f9 | 373 | " --emacs enable Emacs protocol (experimental)\n" |
39cde5c5 MG |
374 | " --use-srfi=LS load SRFI modules for the SRFIs in LS,\n" |
375 | " which is a list of numbers like \"2,13,14\"\n" | |
224c49f9 JB |
376 | " -h, --help display this help and exit\n" |
377 | " -v, --version display version information and exit\n" | |
e69681ae KR |
378 | " \\ read arguments from following script lines\n" |
379 | "\n" | |
17c22047 | 380 | "Please report bugs to bug-guile@gnu.org\n", |
224c49f9 JB |
381 | scm_usage_name); |
382 | ||
383 | if (fatal) | |
8e568309 | 384 | exit (fatal); |
224c49f9 JB |
385 | } |
386 | ||
387 | ||
388 | /* Some symbols used by the command-line compiler. */ | |
389 | SCM_SYMBOL (sym_load, "load"); | |
390 | SCM_SYMBOL (sym_eval_string, "eval-string"); | |
391 | SCM_SYMBOL (sym_command_line, "command-line"); | |
392 | SCM_SYMBOL (sym_begin, "begin"); | |
3682a51a | 393 | SCM_SYMBOL (sym_turn_on_debugging, "turn-on-debugging"); |
224c49f9 JB |
394 | SCM_SYMBOL (sym_load_user_init, "load-user-init"); |
395 | SCM_SYMBOL (sym_top_repl, "top-repl"); | |
396 | SCM_SYMBOL (sym_quit, "quit"); | |
39cde5c5 | 397 | SCM_SYMBOL (sym_use_srfis, "use-srfis"); |
224c49f9 JB |
398 | |
399 | ||
400 | /* Given an array of command-line switches, return a Scheme expression | |
401 | to carry out the actions specified by the switches. | |
402 | ||
403 | If you told me this should have been written in Scheme, I'd | |
404 | probably agree. I'd say I didn't feel comfortable doing that in | |
405 | the present system. You'd say, well, fix the system so you are | |
406 | comfortable doing that. I'd agree again. *shrug* | |
ac16426b | 407 | */ |
224c49f9 | 408 | |
1abb11b6 MD |
409 | static char guile[] = "guile"; |
410 | ||
224c49f9 JB |
411 | SCM |
412 | scm_compile_shell_switches (int argc, char **argv) | |
413 | { | |
414 | SCM tail = SCM_EOL; /* We accumulate the list backwards, | |
415 | and then reverse! it before we | |
416 | return it. */ | |
417 | SCM do_script = SCM_EOL; /* The element of the list containing | |
418 | the "load" command, in case we get | |
419 | the "-ds" switch. */ | |
420 | SCM entry_point = SCM_EOL; /* for -e switch */ | |
421 | int interactive = 1; /* Should we go interactive when done? */ | |
97c524bd | 422 | int inhibit_user_init = 0; /* Don't load user init file */ |
224c49f9 | 423 | int use_emacs_interface = 0; |
3682a51a MV |
424 | int turn_on_debugging = 0; |
425 | int dont_turn_on_debugging = 0; | |
426 | ||
224c49f9 | 427 | int i; |
1abb11b6 | 428 | char *argv0 = guile; |
224c49f9 JB |
429 | |
430 | if (argc > 0) | |
431 | { | |
d0e32dd5 | 432 | argv0 = argv[0]; |
224c49f9 JB |
433 | scm_usage_name = strrchr (argv[0], '/'); |
434 | if (! scm_usage_name) | |
435 | scm_usage_name = argv[0]; | |
436 | else | |
437 | scm_usage_name++; | |
438 | } | |
439 | if (! scm_usage_name) | |
1abb11b6 | 440 | scm_usage_name = guile; |
224c49f9 JB |
441 | |
442 | for (i = 1; i < argc; i++) | |
443 | { | |
defdc4b4 | 444 | if ((! strcmp (argv[i], "-s")) || (argv[i][0] != '-')) /* load script */ |
224c49f9 | 445 | { |
defdc4b4 | 446 | if ((argv[i][0] == '-') && (++i >= argc)) |
224c49f9 JB |
447 | scm_shell_usage (1, "missing argument to `-s' switch"); |
448 | ||
449 | /* If we specified the -ds option, do_script points to the | |
450 | cdr of an expression like (load #f); we replace the car | |
451 | (i.e., the #f) with the script name. */ | |
54778cd3 | 452 | if (!SCM_NULLP (do_script)) |
224c49f9 JB |
453 | { |
454 | SCM_SETCAR (do_script, scm_makfrom0str (argv[i])); | |
455 | do_script = SCM_EOL; | |
456 | } | |
457 | else | |
458 | /* Construct an application of LOAD to the script name. */ | |
459 | tail = scm_cons (scm_cons2 (sym_load, | |
460 | scm_makfrom0str (argv[i]), | |
461 | SCM_EOL), | |
462 | tail); | |
463 | argv0 = argv[i]; | |
464 | i++; | |
465 | interactive = 0; | |
466 | break; | |
467 | } | |
468 | ||
469 | else if (! strcmp (argv[i], "-c")) /* evaluate expr */ | |
470 | { | |
471 | if (++i >= argc) | |
472 | scm_shell_usage (1, "missing argument to `-c' switch"); | |
473 | tail = scm_cons (scm_cons2 (sym_eval_string, | |
474 | scm_makfrom0str (argv[i]), | |
475 | SCM_EOL), | |
476 | tail); | |
477 | i++; | |
478 | interactive = 0; | |
479 | break; | |
480 | } | |
481 | ||
482 | else if (! strcmp (argv[i], "--")) /* end args; go interactive */ | |
483 | { | |
484 | i++; | |
485 | break; | |
486 | } | |
487 | ||
488 | else if (! strcmp (argv[i], "-l")) /* load a file */ | |
489 | { | |
490 | if (++i < argc) | |
491 | tail = scm_cons (scm_cons2 (sym_load, | |
492 | scm_makfrom0str (argv[i]), | |
493 | SCM_EOL), | |
494 | tail); | |
495 | else | |
496 | scm_shell_usage (1, "missing argument to `-l' switch"); | |
497 | } | |
498 | ||
499 | else if (! strcmp (argv[i], "-e")) /* entry point */ | |
500 | { | |
501 | if (++i < argc) | |
8b31d75b | 502 | entry_point = scm_c_read_string (argv[i]); |
224c49f9 JB |
503 | else |
504 | scm_shell_usage (1, "missing argument to `-e' switch"); | |
505 | } | |
506 | ||
507 | else if (! strcmp (argv[i], "-ds")) /* do script here */ | |
508 | { | |
509 | /* We put a dummy "load" expression, and let the -s put the | |
510 | filename in. */ | |
54778cd3 | 511 | if (!SCM_NULLP (do_script)) |
224c49f9 JB |
512 | scm_shell_usage (1, "the -ds switch may only be specified once"); |
513 | do_script = scm_cons (SCM_BOOL_F, SCM_EOL); | |
514 | tail = scm_cons (scm_cons (sym_load, do_script), | |
515 | tail); | |
516 | } | |
517 | ||
3682a51a MV |
518 | else if (! strcmp (argv[i], "--debug")) |
519 | { | |
520 | turn_on_debugging = 1; | |
521 | dont_turn_on_debugging = 0; | |
522 | } | |
523 | ||
524 | else if (! strcmp (argv[i], "--no-debug")) | |
d150e491 | 525 | { |
3682a51a MV |
526 | dont_turn_on_debugging = 1; |
527 | turn_on_debugging = 0; | |
d150e491 MD |
528 | } |
529 | ||
224c49f9 JB |
530 | else if (! strcmp (argv[i], "--emacs")) /* use emacs protocol */ |
531 | use_emacs_interface = 1; | |
532 | ||
97c524bd MD |
533 | else if (! strcmp (argv[i], "-q")) /* don't load user init */ |
534 | inhibit_user_init = 1; | |
535 | ||
39cde5c5 MG |
536 | else if (! strncmp (argv[i], "--use-srfi=", 11)) /* load SRFIs */ |
537 | { | |
538 | SCM srfis = SCM_EOL; /* List of requested SRFIs. */ | |
539 | char * p = argv[i] + 11; | |
540 | while (*p) | |
541 | { | |
542 | long num; | |
543 | char * end; | |
544 | ||
545 | num = strtol (p, &end, 10); | |
546 | if (end - p > 0) | |
547 | { | |
548 | srfis = scm_cons (scm_long2num (num), srfis); | |
549 | if (*end) | |
550 | { | |
551 | if (*end == ',') | |
552 | p = end + 1; | |
553 | else | |
554 | scm_shell_usage (1, "invalid SRFI specification"); | |
555 | } | |
556 | else | |
557 | break; | |
558 | } | |
559 | else | |
560 | scm_shell_usage (1, "invalid SRFI specification"); | |
561 | } | |
562 | if (scm_ilength (srfis) <= 0) | |
563 | scm_shell_usage (1, "invalid SRFI specification"); | |
564 | srfis = scm_reverse_x (srfis, SCM_UNDEFINED); | |
1afff620 KN |
565 | tail = scm_cons (scm_list_2 (sym_use_srfis, |
566 | scm_list_2 (scm_sym_quote, srfis)), | |
39cde5c5 MG |
567 | tail); |
568 | } | |
569 | ||
224c49f9 JB |
570 | else if (! strcmp (argv[i], "-h") |
571 | || ! strcmp (argv[i], "--help")) | |
572 | { | |
573 | scm_shell_usage (0, 0); | |
574 | exit (0); | |
575 | } | |
576 | ||
577 | else if (! strcmp (argv[i], "-v") | |
578 | || ! strcmp (argv[i], "--version")) | |
579 | { | |
580 | /* Print version number. */ | |
581 | printf ("Guile %s\n" | |
e62b37a0 | 582 | "Copyright (c) 1995, 1996, 1997, 2000, 2001, 2002 Free Software Foundation\n" |
224c49f9 JB |
583 | "Guile may be distributed under the terms of the GNU General Public Licence;\n" |
584 | "certain other uses are permitted as well. For details, see the file\n" | |
585 | "`COPYING', which is included in the Guile distribution.\n" | |
586 | "There is no warranty, to the extent permitted by law.\n", | |
86c991c2 | 587 | SCM_STRING_CHARS (scm_version ())); |
224c49f9 JB |
588 | exit (0); |
589 | } | |
590 | ||
591 | else | |
592 | { | |
593 | fprintf (stderr, "%s: Unrecognized switch `%s'\n", | |
594 | scm_usage_name, argv[i]); | |
595 | scm_shell_usage (1, 0); | |
596 | } | |
597 | } | |
598 | ||
599 | /* Check to make sure the -ds got a -s. */ | |
54778cd3 | 600 | if (!SCM_NULLP (do_script)) |
224c49f9 JB |
601 | scm_shell_usage (1, "the `-ds' switch requires the use of `-s' as well"); |
602 | ||
603 | /* Make any remaining arguments available to the | |
604 | script/command/whatever. */ | |
28795b1f | 605 | scm_set_program_arguments (argc ? argc - i : 0, argv + i, argv0); |
224c49f9 JB |
606 | |
607 | /* If the --emacs switch was set, now is when we process it. */ | |
86d31dfe | 608 | scm_c_define ("use-emacs-interface", SCM_BOOL (use_emacs_interface)); |
224c49f9 JB |
609 | |
610 | /* Handle the `-e' switch, if it was specified. */ | |
54778cd3 | 611 | if (!SCM_NULLP (entry_point)) |
224c49f9 JB |
612 | tail = scm_cons (scm_cons2 (entry_point, |
613 | scm_cons (sym_command_line, SCM_EOL), | |
614 | SCM_EOL), | |
615 | tail); | |
616 | ||
97c524bd | 617 | /* If we didn't end with a -c or a -s, start the repl. */ |
224c49f9 JB |
618 | if (interactive) |
619 | { | |
224c49f9 JB |
620 | tail = scm_cons (scm_cons (sym_top_repl, SCM_EOL), tail); |
621 | } | |
08fea088 GH |
622 | else |
623 | { | |
624 | /* After doing all the other actions prescribed by the command line, | |
625 | quit. */ | |
626 | tail = scm_cons (scm_cons (sym_quit, SCM_EOL), | |
6b8d19d3 | 627 | tail); |
08fea088 | 628 | } |
224c49f9 | 629 | |
97c524bd MD |
630 | /* After the following line, actions will be added to the front. */ |
631 | tail = scm_reverse_x (tail, SCM_UNDEFINED); | |
632 | ||
633 | /* If we didn't end with a -c or a -s and didn't supply a -q, load | |
634 | the user's customization file. */ | |
635 | if (interactive && !inhibit_user_init) | |
636 | { | |
637 | tail = scm_cons (scm_cons (sym_load_user_init, SCM_EOL), tail); | |
638 | } | |
639 | ||
3682a51a | 640 | /* If debugging was requested, or we are interactive and debugging |
480fa28d NJ |
641 | was not explicitly turned off, turn on debugging. */ |
642 | if (turn_on_debugging || (interactive && !dont_turn_on_debugging)) | |
3682a51a MV |
643 | { |
644 | tail = scm_cons (scm_cons (sym_turn_on_debugging, SCM_EOL), tail); | |
645 | } | |
646 | ||
224c49f9 | 647 | { |
97c524bd | 648 | SCM val = scm_cons (sym_begin, tail); |
224c49f9 | 649 | |
53e82297 | 650 | #if 0 |
224c49f9 JB |
651 | scm_write (val, SCM_UNDEFINED); |
652 | scm_newline (SCM_UNDEFINED); | |
ebe2a6c1 | 653 | #endif |
224c49f9 JB |
654 | |
655 | return val; | |
656 | } | |
657 | } | |
658 | ||
659 | ||
660 | void | |
6e8d25a6 | 661 | scm_shell (int argc, char **argv) |
224c49f9 JB |
662 | { |
663 | /* If present, add SCSH-style meta-arguments from the top of the | |
664 | script file to the argument vector. See the SCSH manual: "The | |
665 | meta argument" for more details. */ | |
666 | { | |
667 | char **new_argv = scm_get_meta_args (argc, argv); | |
668 | ||
669 | if (new_argv) | |
670 | { | |
671 | argv = new_argv; | |
672 | argc = scm_count_argv (new_argv); | |
673 | } | |
674 | } | |
675 | ||
b3138544 | 676 | exit (scm_exit_status (scm_eval_x (scm_compile_shell_switches (argc, argv), |
deec8fc2 | 677 | scm_current_module ()))); |
224c49f9 JB |
678 | } |
679 | ||
680 | ||
681 | void | |
682 | scm_init_script () | |
683 | { | |
a0599745 | 684 | #include "libguile/script.x" |
224c49f9 | 685 | } |
89e00824 ML |
686 | |
687 | /* | |
688 | Local Variables: | |
689 | c-file-style: "gnu" | |
690 | End: | |
691 | */ |