Commit | Line | Data |
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c374ab69 MV |
1 | /* readline.c --- line editing support for Guile */ |
2 | ||
e81d98ec | 3 | /* Copyright (C) 1997,1999,2000,2001 Free Software Foundation, Inc. |
c374ab69 MV |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2, or (at your option) | |
8 | * any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this software; see the file COPYING. If not, write to | |
c6e23ea2 JB |
17 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
18 | * Boston, MA 02111-1307 USA | |
c374ab69 MV |
19 | * |
20 | */ | |
f48e47b9 | 21 | |
f48e47b9 | 22 | |
c374ab69 MV |
23 | \f |
24 | ||
739b3bf1 | 25 | #include "libguile/_scm.h" |
62947883 | 26 | #ifdef HAVE_RL_GETC_FUNCTION |
fbf68f8b | 27 | #include "libguile.h" |
739b3bf1 MD |
28 | #include "libguile/gh.h" |
29 | #include "libguile/iselect.h" | |
30 | ||
ffdeebc3 | 31 | #include <stdio.h> |
48552b1d MD |
32 | #ifdef HAVE_UNISTD_H |
33 | #include <unistd.h> | |
34 | #endif | |
c374ab69 MV |
35 | #include <readline/readline.h> |
36 | #include <readline/history.h> | |
5e90b6ac | 37 | #ifndef __MINGW32__ |
c374ab69 | 38 | #include <sys/time.h> |
5e90b6ac MV |
39 | #else |
40 | #include <io.h> | |
41 | #endif | |
b71099ba | 42 | #include <signal.h> |
c374ab69 | 43 | |
1c537018 | 44 | #include "libguile/validate.h" |
a0599745 | 45 | #include "guile-readline/readline.h" |
c374ab69 | 46 | |
593be5d2 | 47 | scm_t_option scm_readline_opts[] = { |
c374ab69 MV |
48 | { SCM_OPTION_BOOLEAN, "history-file", 1, |
49 | "Use history file." }, | |
50 | { SCM_OPTION_INTEGER, "history-length", 200, | |
51 | "History length." }, | |
52 | { SCM_OPTION_INTEGER, "bounce-parens", 500, | |
53 | "Time (ms) to show matching opening parenthesis (0 = off)."} | |
54 | }; | |
55 | ||
56 | extern void stifle_history (int max); | |
57 | ||
b916d813 | 58 | SCM_DEFINE (scm_readline_options, "readline-options-interface", 0, 1, 0, |
f48e47b9 GB |
59 | (SCM setting), |
60 | "") | |
61 | #define FUNC_NAME s_scm_readline_options | |
c374ab69 MV |
62 | { |
63 | SCM ans = scm_options (setting, | |
64 | scm_readline_opts, | |
65 | SCM_N_READLINE_OPTIONS, | |
f48e47b9 | 66 | FUNC_NAME); |
c374ab69 MV |
67 | stifle_history (SCM_HISTORY_LENGTH); |
68 | return ans; | |
69 | } | |
f48e47b9 | 70 | #undef FUNC_NAME |
c374ab69 MV |
71 | |
72 | #ifndef HAVE_STRDUP | |
73 | static char * | |
74 | strdup (char *s) | |
75 | { | |
1be6b49c | 76 | size_t len = strlen (s); |
c374ab69 MV |
77 | char *new = malloc (len + 1); |
78 | strcpy (new, s); | |
79 | return new; | |
80 | } | |
81 | #endif /* HAVE_STRDUP */ | |
82 | ||
83 | #ifndef HAVE_RL_CLEANUP_AFTER_SIGNAL | |
84 | ||
85 | /* These are readline functions added in release 2.3. They will work | |
86 | * together with readline-2.1 and 2.2. (The readline interface is | |
87 | * disabled for earlier releases.) | |
88 | * They are declared static; if we want to use them elsewhere, then | |
89 | * we need external declarations for them, but at the moment, I don't | |
90 | * think anything else in Guile ought to use these. | |
91 | */ | |
92 | ||
93 | extern void _rl_clean_up_for_exit (); | |
94 | extern void _rl_kill_kbd_macro (); | |
95 | extern int _rl_init_argument (); | |
96 | ||
2e3d5987 | 97 | void |
c374ab69 MV |
98 | rl_cleanup_after_signal () |
99 | { | |
100 | #ifdef HAVE_RL_CLEAR_SIGNALS | |
101 | _rl_clean_up_for_exit (); | |
102 | #endif | |
103 | (*rl_deprep_term_function) (); | |
104 | #ifdef HAVE_RL_CLEAR_SIGNALS | |
105 | rl_clear_signals (); | |
106 | #endif | |
107 | rl_pending_input = 0; | |
108 | } | |
109 | ||
2e3d5987 | 110 | void |
c374ab69 MV |
111 | rl_free_line_state () |
112 | { | |
113 | register HIST_ENTRY *entry; | |
114 | ||
115 | free_undo_list (); | |
116 | ||
117 | entry = current_history (); | |
118 | if (entry) | |
119 | entry->data = (char *)NULL; | |
120 | ||
121 | _rl_kill_kbd_macro (); | |
122 | rl_clear_message (); | |
123 | _rl_init_argument (); | |
124 | } | |
125 | ||
126 | #endif /* !HAVE_RL_CLEANUP_AFTER_SIGNAL */ | |
127 | ||
128 | static int promptp; | |
129 | static SCM input_port; | |
130 | static SCM before_read; | |
131 | ||
132 | static int | |
e81d98ec | 133 | current_input_getc (FILE *in SCM_UNUSED) |
c374ab69 | 134 | { |
379b35da | 135 | if (promptp && !SCM_FALSEP (before_read)) |
c374ab69 MV |
136 | { |
137 | scm_apply (before_read, SCM_EOL, SCM_EOL); | |
138 | promptp = 0; | |
139 | } | |
bc858b80 | 140 | return scm_getc (input_port); |
c374ab69 MV |
141 | } |
142 | ||
143 | static void | |
144 | redisplay () | |
145 | { | |
146 | rl_redisplay (); | |
147 | /* promptp = 1; */ | |
148 | } | |
149 | ||
c374ab69 MV |
150 | static int in_readline = 0; |
151 | #ifdef USE_THREADS | |
593be5d2 | 152 | static scm_t_mutex reentry_barrier_mutex; |
c374ab69 MV |
153 | #endif |
154 | ||
f48e47b9 GB |
155 | static SCM internal_readline (SCM text); |
156 | static SCM handle_error (void *data, SCM tag, SCM args); | |
48552b1d | 157 | static void reentry_barrier (void); |
f48e47b9 GB |
158 | |
159 | ||
b916d813 | 160 | SCM_DEFINE (scm_readline, "%readline", 0, 4, 0, |
f48e47b9 GB |
161 | (SCM text, SCM inp, SCM outp, SCM read_hook), |
162 | "") | |
163 | #define FUNC_NAME s_scm_readline | |
164 | { | |
165 | SCM ans; | |
166 | ||
167 | reentry_barrier (); | |
168 | ||
169 | before_read = SCM_BOOL_F; | |
170 | ||
171 | if (!SCM_UNBNDP (text)) | |
172 | { | |
379b35da | 173 | if (!SCM_STRINGP (text)) |
f48e47b9 GB |
174 | { |
175 | --in_readline; | |
176 | scm_wrong_type_arg (s_scm_readline, SCM_ARG1, text); | |
177 | } | |
f48e47b9 GB |
178 | } |
179 | ||
379b35da DH |
180 | if (!((SCM_UNBNDP (inp) && SCM_OPINFPORTP (scm_cur_inp)) |
181 | || SCM_OPINFPORTP (inp))) | |
f48e47b9 GB |
182 | { |
183 | --in_readline; | |
184 | scm_misc_error (s_scm_readline, | |
185 | "Input port is not open or not a file port", | |
186 | SCM_EOL); | |
187 | } | |
188 | ||
379b35da DH |
189 | if (!((SCM_UNBNDP (outp) && SCM_OPINFPORTP (scm_cur_outp)) |
190 | || SCM_OPOUTFPORTP (outp))) | |
f48e47b9 GB |
191 | { |
192 | --in_readline; | |
193 | scm_misc_error (s_scm_readline, | |
194 | "Output port is not open or not a file port", | |
195 | SCM_EOL); | |
196 | } | |
197 | ||
198 | if (!(SCM_UNBNDP (read_hook) || SCM_FALSEP (read_hook))) | |
199 | { | |
200 | if (!(SCM_NFALSEP (scm_thunk_p (read_hook)))) | |
201 | { | |
202 | --in_readline; | |
203 | scm_wrong_type_arg (s_scm_readline, SCM_ARG4, read_hook); | |
204 | } | |
205 | before_read = read_hook; | |
206 | } | |
207 | ||
208 | scm_readline_init_ports (inp, outp); | |
209 | ||
210 | ans = scm_internal_catch (SCM_BOOL_T, | |
593be5d2 | 211 | (scm_t_catch_body) internal_readline, |
f60d011a | 212 | (void *) SCM_UNPACK (text), |
f48e47b9 GB |
213 | handle_error, 0); |
214 | ||
8f99e3f3 | 215 | #ifndef __MINGW32__ |
f48e47b9 GB |
216 | fclose (rl_instream); |
217 | fclose (rl_outstream); | |
8f99e3f3 | 218 | #endif |
f48e47b9 GB |
219 | |
220 | --in_readline; | |
221 | return ans; | |
222 | } | |
223 | #undef FUNC_NAME | |
224 | ||
225 | ||
c374ab69 MV |
226 | static void |
227 | reentry_barrier () | |
228 | { | |
229 | int reentryp = 0; | |
230 | #ifdef USE_THREADS | |
593be5d2 | 231 | /* We should rather use scm_t_mutexry_lock when it becomes available */ |
c374ab69 MV |
232 | scm_mutex_lock (&reentry_barrier_mutex); |
233 | #endif | |
234 | if (in_readline) | |
235 | reentryp = 1; | |
236 | else | |
237 | ++in_readline; | |
238 | #ifdef USE_THREADS | |
239 | scm_mutex_unlock (&reentry_barrier_mutex); | |
240 | #endif | |
241 | if (reentryp) | |
f48e47b9 | 242 | scm_misc_error (s_scm_readline, "readline is not reentrant", SCM_EOL); |
c374ab69 MV |
243 | } |
244 | ||
245 | static SCM | |
246 | handle_error (void *data, SCM tag, SCM args) | |
247 | { | |
248 | rl_free_line_state (); | |
249 | rl_cleanup_after_signal (); | |
739b3bf1 | 250 | fputc ('\n', rl_outstream); /* We don't want next output on this line */ |
8f99e3f3 | 251 | #ifndef __MINGW32__ |
c374ab69 MV |
252 | fclose (rl_instream); |
253 | fclose (rl_outstream); | |
8f99e3f3 | 254 | #endif |
c374ab69 MV |
255 | --in_readline; |
256 | scm_handle_by_throw (data, tag, args); | |
257 | return SCM_UNSPECIFIED; /* never reached */ | |
258 | } | |
259 | ||
260 | static SCM | |
261 | internal_readline (SCM text) | |
262 | { | |
263 | SCM ret; | |
264 | char *s; | |
08b5e6c3 | 265 | char *prompt = SCM_UNBNDP (text) ? "" : SCM_STRING_CHARS (text); |
c374ab69 MV |
266 | |
267 | promptp = 1; | |
268 | s = readline (prompt); | |
269 | if (s) | |
270 | ret = scm_makfrom0str (s); | |
271 | else | |
272 | ret = SCM_EOF_VAL; | |
273 | ||
274 | free (s); | |
275 | ||
276 | return ret; | |
277 | } | |
278 | ||
279 | static FILE * | |
280 | stream_from_fport (SCM port, char *mode, const char *subr) | |
281 | { | |
282 | int fd; | |
283 | FILE *f; | |
284 | ||
593be5d2 | 285 | fd = dup (((struct scm_t_fport *) SCM_STREAM (port))->fdes); |
c374ab69 MV |
286 | if (fd == -1) |
287 | { | |
288 | --in_readline; | |
289 | scm_syserror (subr); | |
290 | } | |
291 | ||
292 | f = fdopen (fd, mode); | |
293 | if (f == NULL) | |
294 | { | |
295 | --in_readline; | |
296 | scm_syserror (subr); | |
297 | } | |
298 | ||
299 | return f; | |
300 | } | |
301 | ||
2e3d5987 MD |
302 | void |
303 | scm_readline_init_ports (SCM inp, SCM outp) | |
304 | { | |
305 | if (SCM_UNBNDP (inp)) | |
306 | inp = scm_cur_inp; | |
307 | ||
308 | if (SCM_UNBNDP (outp)) | |
309 | outp = scm_cur_outp; | |
310 | ||
379b35da | 311 | if (!SCM_OPINFPORTP (inp)) { |
2e3d5987 MD |
312 | scm_misc_error (0, |
313 | "Input port is not open or not a file port", | |
314 | SCM_EOL); | |
315 | } | |
316 | ||
379b35da | 317 | if (!SCM_OPOUTFPORTP (outp)) { |
2e3d5987 MD |
318 | scm_misc_error (0, |
319 | "Output port is not open or not a file port", | |
320 | SCM_EOL); | |
321 | } | |
322 | ||
323 | input_port = inp; | |
8f99e3f3 | 324 | #ifndef __MINGW32__ |
f48e47b9 GB |
325 | rl_instream = stream_from_fport (inp, "r", s_scm_readline); |
326 | rl_outstream = stream_from_fport (outp, "w", s_scm_readline); | |
8f99e3f3 | 327 | #endif |
2e3d5987 MD |
328 | } |
329 | ||
c374ab69 | 330 | |
c374ab69 | 331 | |
b916d813 | 332 | SCM_DEFINE (scm_add_history, "add-history", 1, 0, 0, |
f48e47b9 GB |
333 | (SCM text), |
334 | "") | |
335 | #define FUNC_NAME s_scm_add_history | |
c374ab69 MV |
336 | { |
337 | char* s; | |
cbaee92a | 338 | SCM_VALIDATE_STRING (1,text); |
c374ab69 | 339 | |
08b5e6c3 | 340 | s = SCM_STRING_CHARS (text); |
c374ab69 MV |
341 | add_history (strdup (s)); |
342 | ||
343 | return SCM_UNSPECIFIED; | |
344 | } | |
f48e47b9 | 345 | #undef FUNC_NAME |
c374ab69 MV |
346 | |
347 | ||
b916d813 | 348 | SCM_DEFINE (scm_read_history, "read-history", 1, 0, 0, |
f48e47b9 GB |
349 | (SCM file), |
350 | "") | |
351 | #define FUNC_NAME s_scm_read_history | |
c374ab69 | 352 | { |
cbaee92a | 353 | SCM_VALIDATE_STRING (1,file); |
08b5e6c3 | 354 | return SCM_NEGATE_BOOL (read_history (SCM_STRING_CHARS (file))); |
c374ab69 | 355 | } |
f48e47b9 | 356 | #undef FUNC_NAME |
c374ab69 MV |
357 | |
358 | ||
b916d813 | 359 | SCM_DEFINE (scm_write_history, "write-history", 1, 0, 0, |
f48e47b9 GB |
360 | (SCM file), |
361 | "") | |
362 | #define FUNC_NAME s_scm_write_history | |
c374ab69 | 363 | { |
cbaee92a | 364 | SCM_VALIDATE_STRING (1,file); |
08b5e6c3 | 365 | return SCM_NEGATE_BOOL (write_history (SCM_STRING_CHARS (file))); |
c374ab69 | 366 | } |
f48e47b9 | 367 | #undef FUNC_NAME |
c374ab69 | 368 | |
8ed35a15 MV |
369 | SCM_DEFINE (scm_clear_history, "clear-history", 0, 0, 0, |
370 | (), | |
371 | "Clear the history buffer of the readline machinery.") | |
372 | #define FUNC_NAME s_scm_clear_history | |
373 | { | |
374 | clear_history(); | |
375 | return SCM_UNSPECIFIED; | |
376 | } | |
377 | #undef FUNC_NAME | |
378 | ||
c374ab69 | 379 | |
b916d813 | 380 | SCM_DEFINE (scm_filename_completion_function, "filename-completion-function", 2, 0, 0, |
f48e47b9 GB |
381 | (SCM text, SCM continuep), |
382 | "") | |
383 | #define FUNC_NAME s_scm_filename_completion_function | |
c374ab69 MV |
384 | { |
385 | char *s; | |
386 | SCM ans; | |
cbaee92a | 387 | SCM_VALIDATE_STRING (1,text); |
dcb17187 MV |
388 | #ifdef HAVE_RL_FILENAME_COMPLETION_FUNCTION |
389 | s = rl_filename_completion_function (SCM_STRING_CHARS (text), SCM_NFALSEP (continuep)); | |
390 | #else | |
08b5e6c3 | 391 | s = filename_completion_function (SCM_STRING_CHARS (text), SCM_NFALSEP (continuep)); |
dcb17187 | 392 | #endif |
c374ab69 MV |
393 | ans = scm_makfrom0str (s); |
394 | free (s); | |
395 | return ans; | |
396 | } | |
f48e47b9 | 397 | #undef FUNC_NAME |
c374ab69 MV |
398 | |
399 | /* | |
400 | * The following has been modified from code contributed by | |
401 | * Andrew Archibald <aarchiba@undergrad.math.uwaterloo.ca> | |
402 | */ | |
403 | ||
404 | SCM scm_readline_completion_function_var; | |
405 | ||
406 | static char * | |
407 | completion_function (char *text, int continuep) | |
408 | { | |
296ff5e7 | 409 | SCM compfunc = SCM_VARIABLE_REF (scm_readline_completion_function_var); |
c374ab69 MV |
410 | SCM res; |
411 | ||
412 | if (SCM_FALSEP (compfunc)) | |
413 | return NULL; /* #f => completion disabled */ | |
414 | else | |
415 | { | |
416 | SCM t = scm_makfrom0str (text); | |
417 | SCM c = continuep ? SCM_BOOL_T : SCM_BOOL_F; | |
5b2a7b59 | 418 | res = scm_apply (compfunc, scm_list_2 (t, c), SCM_EOL); |
c374ab69 MV |
419 | |
420 | if (SCM_FALSEP (res)) | |
421 | return NULL; | |
422 | ||
379b35da | 423 | if (!SCM_STRINGP (res)) |
f48e47b9 | 424 | scm_misc_error (s_scm_readline, |
c374ab69 | 425 | "Completion function returned bogus value: %S", |
5b2a7b59 | 426 | scm_list_1 (res)); |
08b5e6c3 | 427 | return strdup (SCM_STRING_CHARS (res)); |
c374ab69 MV |
428 | } |
429 | } | |
430 | ||
431 | /*Bouncing parenthesis (reimplemented by GH, 11/23/98, since readline is strict gpl)*/ | |
432 | ||
576cdec4 MD |
433 | static int match_paren (int x, int k); |
434 | static int find_matching_paren (int k); | |
435 | static void init_bouncing_parens (); | |
c374ab69 MV |
436 | |
437 | static void | |
576cdec4 | 438 | init_bouncing_parens () |
c374ab69 | 439 | { |
576cdec4 MD |
440 | if (strncmp (rl_get_keymap_name (rl_get_keymap ()), "vi", 2)) |
441 | { | |
442 | rl_bind_key (')', match_paren); | |
443 | rl_bind_key (']', match_paren); | |
444 | rl_bind_key ('}', match_paren); | |
445 | } | |
c374ab69 MV |
446 | } |
447 | ||
448 | static int | |
449 | find_matching_paren(int k) | |
450 | { | |
451 | register int i; | |
452 | register char c = 0; | |
453 | int end_parens_found = 0; | |
454 | ||
455 | /* Choose the corresponding opening bracket. */ | |
456 | if (k == ')') c = '('; | |
457 | else if (k == ']') c = '['; | |
458 | else if (k == '}') c = '{'; | |
459 | ||
460 | for (i=rl_point-2; i>=0; i--) | |
461 | { | |
462 | /* Is the current character part of a character literal? */ | |
463 | if (i - 2 >= 0 | |
464 | && rl_line_buffer[i - 1] == '\\' | |
465 | && rl_line_buffer[i - 2] == '#') | |
466 | ; | |
467 | else if (rl_line_buffer[i] == k) | |
468 | end_parens_found++; | |
469 | else if (rl_line_buffer[i] == '"') | |
470 | { | |
471 | /* Skip over a string literal. */ | |
472 | for (i--; i >= 0; i--) | |
473 | if (rl_line_buffer[i] == '"' | |
474 | && ! (i - 1 >= 0 | |
475 | && rl_line_buffer[i - 1] == '\\')) | |
476 | break; | |
477 | } | |
478 | else if (rl_line_buffer[i] == c) | |
479 | { | |
576cdec4 MD |
480 | if (end_parens_found==0) |
481 | return i; | |
c374ab69 MV |
482 | else --end_parens_found; |
483 | } | |
484 | } | |
485 | return -1; | |
486 | } | |
487 | ||
576cdec4 MD |
488 | static int |
489 | match_paren (int x, int k) | |
c374ab69 | 490 | { |
8f99e3f3 SJ |
491 | int tmp; |
492 | #ifndef __MINGW32__ | |
493 | int fno; | |
aba2031a | 494 | SELECT_TYPE readset; |
c374ab69 | 495 | struct timeval timeout; |
8f99e3f3 SJ |
496 | #endif |
497 | ||
576cdec4 | 498 | rl_insert (x, k); |
c374ab69 | 499 | if (!SCM_READLINE_BOUNCE_PARENS) |
576cdec4 | 500 | return 0; |
c374ab69 MV |
501 | |
502 | /* Did we just insert a quoted paren? If so, then don't bounce. */ | |
503 | if (rl_point - 1 >= 1 | |
504 | && rl_line_buffer[rl_point - 2] == '\\') | |
576cdec4 | 505 | return 0; |
c374ab69 | 506 | |
8f99e3f3 | 507 | #ifndef __MINGW32__ |
c374ab69 MV |
508 | tmp = 1000 * SCM_READLINE_BOUNCE_PARENS; |
509 | timeout.tv_sec = tmp / 1000000; | |
510 | timeout.tv_usec = tmp % 1000000; | |
576cdec4 | 511 | FD_ZERO (&readset); |
bc858b80 MD |
512 | fno = fileno (rl_instream); |
513 | FD_SET (fno, &readset); | |
8f99e3f3 SJ |
514 | #endif |
515 | ||
576cdec4 MD |
516 | if (rl_point > 1) |
517 | { | |
518 | tmp = rl_point; | |
519 | rl_point = find_matching_paren (k); | |
520 | if (rl_point > -1) | |
521 | { | |
522 | rl_redisplay (); | |
8f99e3f3 | 523 | #ifndef __MINGW32__ |
bc858b80 | 524 | scm_internal_select (fno + 1, &readset, NULL, NULL, &timeout); |
8f99e3f3 SJ |
525 | #else |
526 | WaitForSingleObject (GetStdHandle(STD_INPUT_HANDLE), | |
527 | SCM_READLINE_BOUNCE_PARENS); | |
528 | #endif | |
576cdec4 MD |
529 | } |
530 | rl_point = tmp; | |
c374ab69 | 531 | } |
576cdec4 | 532 | return 0; |
c374ab69 MV |
533 | } |
534 | ||
b71099ba MD |
535 | #if defined (HAVE_RL_PRE_INPUT_HOOK) && defined (GUILE_SIGWINCH_SA_RESTART_CLEARED) |
536 | /* Readline disables SA_RESTART on SIGWINCH. | |
537 | * This code turns it back on. | |
538 | */ | |
539 | static int | |
540 | sigwinch_enable_restart (void) | |
541 | { | |
542 | #ifdef HAVE_SIGINTERRUPT | |
543 | siginterrupt (SIGWINCH, 0); | |
544 | #else | |
545 | struct sigaction action; | |
546 | ||
547 | sigaction (SIGWINCH, NULL, &action); | |
548 | action.sa_flags |= SA_RESTART; | |
549 | sigaction (SIGWINCH, &action, NULL); | |
550 | #endif | |
551 | return 0; | |
552 | } | |
553 | #endif | |
554 | ||
26047451 MD |
555 | #endif /* HAVE_RL_GETC_FUNCTION */ |
556 | ||
c374ab69 MV |
557 | void |
558 | scm_init_readline () | |
559 | { | |
62947883 | 560 | #ifdef HAVE_RL_GETC_FUNCTION |
a0599745 | 561 | #include "guile-readline/readline.x" |
c374ab69 | 562 | scm_readline_completion_function_var |
296ff5e7 | 563 | = scm_c_define ("*readline-completion-function*", SCM_BOOL_F); |
8f99e3f3 | 564 | #ifndef __MINGW32__ |
c374ab69 | 565 | rl_getc_function = current_input_getc; |
8f99e3f3 | 566 | #endif |
c374ab69 | 567 | rl_redisplay_function = redisplay; |
dcb17187 MV |
568 | #if defined (_RL_FUNCTION_TYPEDEF) |
569 | rl_completion_entry_function = (rl_compentry_func_t*) completion_function; | |
570 | #else | |
c374ab69 | 571 | rl_completion_entry_function = (Function*) completion_function; |
dcb17187 | 572 | #endif |
c374ab69 | 573 | rl_basic_word_break_characters = "\t\n\"'`;()"; |
5c11cc9d | 574 | rl_readline_name = "Guile"; |
b71099ba MD |
575 | #if defined (HAVE_RL_PRE_INPUT_HOOK) && defined (GUILE_SIGWINCH_SA_RESTART_CLEARED) |
576 | rl_pre_input_hook = sigwinch_enable_restart; | |
577 | #endif | |
5c11cc9d | 578 | |
c374ab69 | 579 | #ifdef USE_THREADS |
b74b1a63 | 580 | scm_mutex_init (&reentry_barrier_mutex); |
c374ab69 MV |
581 | #endif |
582 | scm_init_opts (scm_readline_options, | |
583 | scm_readline_opts, | |
584 | SCM_N_READLINE_OPTIONS); | |
585 | init_bouncing_parens(); | |
586 | scm_add_feature ("readline"); | |
62947883 | 587 | #endif /* HAVE_RL_GETC_FUNCTION */ |
c374ab69 MV |
588 | } |
589 | ||
89e00824 ML |
590 | /* |
591 | Local Variables: | |
592 | c-file-style: "gnu" | |
593 | End: | |
594 | */ |