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0f2d19dd JB |
1 | /* Copyright (C) 1995,1996 Free Software Foundation, Inc. |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
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. | |
39 | * If you do not wish that, delete this exception notice. | |
40 | */ | |
41 | \f | |
42 | ||
43 | #include <stdio.h> | |
44 | #include "_scm.h" | |
45 | ||
46 | \f | |
47 | ||
48 | \f | |
49 | ||
50 | /* {Names of immediate symbols} | |
51 | * | |
52 | * This table must agree with the declarations in scm.h: {Immediate Symbols}. | |
53 | */ | |
54 | ||
55 | char *scm_isymnames[] = | |
56 | { | |
57 | /* This table must agree with the declarations */ | |
58 | "#@and", | |
59 | "#@begin", | |
60 | "#@case", | |
61 | "#@cond", | |
62 | "#@do", | |
63 | "#@if", | |
64 | "#@lambda", | |
65 | "#@let", | |
66 | "#@let*", | |
67 | "#@letrec", | |
68 | "#@or", | |
69 | "#@quote", | |
70 | "#@set!", | |
71 | "#@define", | |
72 | #if 0 | |
73 | "#@literal-variable-ref", | |
74 | "#@literal-variable-set!", | |
75 | #endif | |
76 | "#@apply", | |
77 | "#@call-with-current-continuation", | |
78 | ||
79 | /* user visible ISYMS */ | |
80 | /* other keywords */ | |
81 | /* Flags */ | |
82 | ||
83 | "#f", | |
84 | "#t", | |
85 | "#<undefined>", | |
86 | "#<eof>", | |
87 | "()", | |
88 | "#<unspecified>" | |
89 | }; | |
90 | ||
91 | \f | |
92 | /* {Printing of Scheme Objects} | |
93 | */ | |
94 | ||
95 | /* Print generally. Handles both write and display according to WRITING. | |
96 | */ | |
97 | #ifdef __STDC__ | |
98 | void | |
99 | scm_iprin1 (SCM exp, SCM port, int writing) | |
100 | #else | |
101 | void | |
102 | scm_iprin1 (exp, port, writing) | |
103 | SCM exp; | |
104 | SCM port; | |
105 | int writing; | |
106 | #endif | |
107 | { | |
108 | register long i; | |
109 | taloop: | |
110 | switch (7 & (int) exp) | |
111 | { | |
112 | case 2: | |
113 | case 6: | |
114 | scm_intprint (SCM_INUM (exp), 10, port); | |
115 | break; | |
116 | case 4: | |
117 | if (SCM_ICHRP (exp)) | |
118 | { | |
119 | i = SCM_ICHR (exp); | |
120 | scm_put_wchar (i, port, writing); | |
121 | ||
122 | } | |
123 | else if ( SCM_IFLAGP (exp) | |
124 | && (SCM_ISYMNUM (exp) < (sizeof scm_isymnames / sizeof (char *)))) | |
125 | scm_gen_puts (scm_regular_string, SCM_ISYMSCM_CHARS (exp), port); | |
126 | else if (SCM_ILOCP (exp)) | |
127 | { | |
128 | scm_gen_puts (scm_regular_string, "#@", port); | |
129 | scm_intprint ((long) SCM_IFRAME (exp), 10, port); | |
130 | scm_gen_putc (SCM_ICDRP (exp) ? '-' : '+', port); | |
131 | scm_intprint ((long) SCM_IDIST (exp), 10, port); | |
132 | } | |
133 | else | |
134 | goto idef; | |
135 | break; | |
136 | case 1: | |
137 | /* gloc */ | |
138 | scm_gen_puts (scm_regular_string, "#@", port); | |
139 | exp = SCM_CAR (exp - 1); | |
140 | goto taloop; | |
141 | default: | |
142 | idef: | |
143 | scm_ipruk ("immediate", exp, port); | |
144 | break; | |
145 | case 0: | |
146 | switch (SCM_TYP7 (exp)) | |
147 | { | |
148 | case scm_tcs_cons_gloc: | |
149 | ||
150 | if (SCM_CDR (SCM_CAR (exp) - 1L) == 0) | |
151 | { | |
152 | scm_gen_write (scm_regular_string, "#<struct ", (scm_sizet) 9, port); | |
153 | scm_intprint(exp, 16, port); | |
154 | scm_gen_putc ('>', port); | |
155 | break; | |
156 | } | |
157 | ||
158 | case scm_tcs_cons_imcar: | |
159 | case scm_tcs_cons_nimcar: | |
160 | scm_iprlist ("(", exp, ')', port, writing); | |
161 | break; | |
162 | case scm_tcs_closures: | |
163 | #ifdef DEBUG_EXTENSIONS | |
164 | if (PRINT_PROCNAMES) | |
165 | { | |
166 | SCM name; | |
167 | name = scm_procedure_property (exp, scm_i_name); | |
168 | scm_gen_puts (scm_regular_string, "#<procedure", port); | |
169 | if (SCM_NFALSEP (name)) | |
170 | { | |
171 | scm_gen_putc (' ', port); | |
172 | /* FIXME */ | |
173 | scm_gen_puts (scm_regular_string, SCM_CHARS (name), port); | |
174 | } | |
175 | scm_gen_putc ('>', port); | |
176 | } | |
177 | else | |
178 | #endif | |
179 | { | |
180 | exp = SCM_CODE (exp); | |
181 | scm_iprlist ("#<CLOSURE ", exp, '>', port, writing); | |
182 | } | |
183 | break; | |
184 | case scm_tc7_mb_string: | |
185 | case scm_tc7_mb_substring: | |
186 | scm_print_mb_string (exp, port, writing); | |
187 | break; | |
188 | case scm_tc7_substring: | |
189 | case scm_tc7_string: | |
190 | if (writing) | |
191 | { | |
192 | scm_gen_putc ('\"', port); | |
193 | for (i = 0; i < SCM_ROLENGTH (exp); ++i) | |
194 | switch (SCM_ROCHARS (exp)[i]) | |
195 | { | |
196 | case '\"': | |
197 | case '\\': | |
198 | scm_gen_putc ('\\', port); | |
199 | default: | |
200 | scm_gen_putc (SCM_ROCHARS (exp)[i], port); | |
201 | } | |
202 | scm_gen_putc ('\"', port); | |
203 | break; | |
204 | } | |
205 | else | |
206 | scm_gen_write (scm_regular_string, SCM_ROCHARS (exp), | |
207 | (scm_sizet) SCM_ROLENGTH (exp), | |
208 | port); | |
209 | break; | |
210 | case scm_tcs_symbols: | |
211 | if (SCM_MB_STRINGP (exp)) | |
212 | { | |
213 | scm_print_mb_symbol (exp, port); | |
214 | break; | |
215 | } | |
216 | else | |
217 | { | |
218 | int pos; | |
219 | int end; | |
220 | int len; | |
221 | char * str; | |
222 | int weird; | |
223 | int maybe_weird; | |
224 | int mw_pos; | |
225 | ||
226 | len = SCM_LENGTH (exp); | |
227 | str = SCM_CHARS (exp); | |
228 | scm_remember (&exp); | |
229 | pos = 0; | |
230 | weird = 0; | |
231 | maybe_weird = 0; | |
232 | ||
233 | if (len == 0) | |
234 | scm_gen_write (scm_regular_string, "#{}#", 4, port); | |
235 | ||
236 | for (end = pos; end < len; ++end) | |
237 | switch (str[end]) | |
238 | { | |
239 | #ifdef BRACKETS_AS_PARENS | |
240 | case '[': | |
241 | case ']': | |
242 | #endif | |
243 | case '(': | |
244 | case ')': | |
245 | case '\"': | |
246 | case ';': | |
247 | case SCM_WHITE_SPACES: | |
248 | case SCM_LINE_INCREMENTORS: | |
249 | weird_handler: | |
250 | if (maybe_weird) | |
251 | { | |
252 | end = mw_pos; | |
253 | maybe_weird = 0; | |
254 | } | |
255 | if (!weird) | |
256 | { | |
257 | scm_gen_write (scm_regular_string, "#{", 2, port); | |
258 | weird = 1; | |
259 | } | |
260 | if (pos < end) | |
261 | { | |
262 | scm_gen_write (scm_regular_string, str + pos, end - pos, port); | |
263 | } | |
264 | { | |
265 | char buf[2]; | |
266 | buf[0] = '\\'; | |
267 | buf[1] = str[end]; | |
268 | scm_gen_write (scm_regular_string, buf, 2, port); | |
269 | } | |
270 | pos = end + 1; | |
271 | break; | |
272 | case '\\': | |
273 | if (weird) | |
274 | goto weird_handler; | |
275 | if (!maybe_weird) | |
276 | { | |
277 | maybe_weird = 1; | |
278 | mw_pos = pos; | |
279 | } | |
280 | break; | |
281 | case '}': | |
282 | case '#': | |
283 | if (weird) | |
284 | goto weird_handler; | |
285 | break; | |
286 | default: | |
287 | break; | |
288 | } | |
289 | if (pos < end) | |
290 | scm_gen_write (scm_regular_string, str + pos, end - pos, port); | |
291 | if (weird) | |
292 | scm_gen_write (scm_regular_string, "}#", 2, port); | |
293 | break; | |
294 | } | |
295 | case scm_tc7_wvect: | |
296 | if (SCM_IS_WHVEC (exp)) | |
297 | scm_gen_puts (scm_regular_string, "#wh(", port); | |
298 | else | |
299 | scm_gen_puts (scm_regular_string, "#w(", port); | |
300 | goto common_vector_printer; | |
301 | ||
302 | case scm_tc7_vector: | |
303 | scm_gen_puts (scm_regular_string, "#(", port); | |
304 | common_vector_printer: | |
305 | for (i = 0; i + 1 < SCM_LENGTH (exp); ++i) | |
306 | { | |
307 | /* CHECK_INTS; */ | |
308 | scm_iprin1 (SCM_VELTS (exp)[i], port, writing); | |
309 | scm_gen_putc (' ', port); | |
310 | } | |
311 | if (i < SCM_LENGTH (exp)) | |
312 | { | |
313 | /* CHECK_INTS; */ | |
314 | scm_iprin1 (SCM_VELTS (exp)[i], port, writing); | |
315 | } | |
316 | scm_gen_putc (')', port); | |
317 | break; | |
318 | case scm_tc7_bvect: | |
319 | case scm_tc7_byvect: | |
320 | case scm_tc7_svect: | |
321 | case scm_tc7_ivect: | |
322 | case scm_tc7_uvect: | |
323 | case scm_tc7_fvect: | |
324 | case scm_tc7_dvect: | |
325 | case scm_tc7_cvect: | |
326 | #ifdef LONGLONGS | |
327 | case scm_tc7_llvect: | |
328 | #endif | |
329 | scm_raprin1 (exp, port, writing); | |
330 | break; | |
331 | case scm_tcs_subrs: | |
332 | scm_gen_puts (scm_regular_string, "#<primitive-procedure ", port); | |
333 | scm_gen_puts ((SCM_MB_STRINGP (SCM_SNAME(exp)) | |
334 | ? scm_mb_string | |
335 | : scm_regular_string), | |
336 | SCM_CHARS (SCM_SNAME (exp)), port); | |
337 | scm_gen_putc ('>', port); | |
338 | break; | |
339 | #ifdef CCLO | |
340 | case scm_tc7_cclo: | |
341 | scm_gen_puts (scm_regular_string, "#<compiled-closure ", port); | |
342 | scm_iprin1 (SCM_CCLO_SUBR (exp), port, writing); | |
343 | scm_gen_putc ('>', port); | |
344 | break; | |
345 | #endif | |
346 | case scm_tc7_contin: | |
347 | scm_gen_puts (scm_regular_string, "#<continuation ", port); | |
348 | scm_intprint (SCM_LENGTH (exp), 10, port); | |
349 | scm_gen_puts (scm_regular_string, " @ ", port); | |
350 | scm_intprint ((long) SCM_CHARS (exp), 16, port); | |
351 | scm_gen_putc ('>', port); | |
352 | break; | |
353 | case scm_tc7_port: | |
354 | i = SCM_PTOBNUM (exp); | |
355 | if (i < scm_numptob && scm_ptobs[i].print && (scm_ptobs[i].print) (exp, port, writing)) | |
356 | break; | |
357 | goto punk; | |
358 | case scm_tc7_smob: | |
359 | i = SCM_SMOBNUM (exp); | |
360 | if (i < scm_numsmob && scm_smobs[i].print | |
361 | && (scm_smobs[i].print) (exp, port, writing)) | |
362 | break; | |
363 | goto punk; | |
364 | default: | |
365 | punk:scm_ipruk ("type", exp, port); | |
366 | } | |
367 | } | |
368 | } | |
369 | ||
370 | ||
371 | /* Print an integer. | |
372 | */ | |
373 | #ifdef __STDC__ | |
374 | void | |
375 | scm_intprint (long n, int radix, SCM port) | |
376 | #else | |
377 | void | |
378 | scm_intprint (n, radix, port) | |
379 | long n; | |
380 | int radix; | |
381 | SCM port; | |
382 | #endif | |
383 | { | |
384 | char num_buf[SCM_INTBUFLEN]; | |
385 | scm_gen_write (scm_regular_string, num_buf, scm_iint2str (n, radix, num_buf), port); | |
386 | } | |
387 | ||
388 | /* Print an object of unrecognized type. | |
389 | */ | |
390 | #ifdef __STDC__ | |
391 | void | |
392 | scm_ipruk (char *hdr, SCM ptr, SCM port) | |
393 | #else | |
394 | void | |
395 | scm_ipruk (hdr, ptr, port) | |
396 | char *hdr; | |
397 | SCM ptr; | |
398 | SCM port; | |
399 | #endif | |
400 | { | |
401 | scm_gen_puts (scm_regular_string, "#<unknown-", port); | |
402 | scm_gen_puts (scm_regular_string, hdr, port); | |
403 | if (SCM_CELLP (ptr)) | |
404 | { | |
405 | scm_gen_puts (scm_regular_string, " (0x", port); | |
406 | scm_intprint (SCM_CAR (ptr), 16, port); | |
407 | scm_gen_puts (scm_regular_string, " . 0x", port); | |
408 | scm_intprint (SCM_CDR (ptr), 16, port); | |
409 | scm_gen_puts (scm_regular_string, ") @", port); | |
410 | } | |
411 | scm_gen_puts (scm_regular_string, " 0x", port); | |
412 | scm_intprint (ptr, 16, port); | |
413 | scm_gen_putc ('>', port); | |
414 | } | |
415 | ||
416 | /* Print a list. | |
417 | */ | |
418 | #ifdef __STDC__ | |
419 | void | |
420 | scm_iprlist (char *hdr, SCM exp, char tlr, SCM port, int writing) | |
421 | #else | |
422 | void | |
423 | scm_iprlist (hdr, exp, tlr, port, writing) | |
424 | char *hdr; | |
425 | SCM exp; | |
426 | char tlr; | |
427 | SCM port; | |
428 | int writing; | |
429 | #endif | |
430 | { | |
431 | scm_gen_puts (scm_regular_string, hdr, port); | |
432 | /* CHECK_INTS; */ | |
433 | scm_iprin1 (SCM_CAR (exp), port, writing); | |
434 | exp = SCM_CDR (exp); | |
435 | for (; SCM_NIMP (exp); exp = SCM_CDR (exp)) | |
436 | { | |
437 | if (SCM_NECONSP (exp)) | |
438 | break; | |
439 | scm_gen_putc (' ', port); | |
440 | /* CHECK_INTS; */ | |
441 | scm_iprin1 (SCM_CAR (exp), port, writing); | |
442 | } | |
443 | if (SCM_NNULLP (exp)) | |
444 | { | |
445 | scm_gen_puts (scm_regular_string, " . ", port); | |
446 | scm_iprin1 (exp, port, writing); | |
447 | } | |
448 | scm_gen_putc (tlr, port); | |
449 | } | |
450 | ||
451 | \f | |
452 | ||
453 | SCM_PROC(s_write, "write", 1, 1, 0, scm_write); | |
454 | #ifdef __STDC__ | |
455 | SCM | |
456 | scm_write (SCM obj, SCM port) | |
457 | #else | |
458 | SCM | |
459 | scm_write (obj, port) | |
460 | SCM obj; | |
461 | SCM port; | |
462 | #endif | |
463 | { | |
464 | if (SCM_UNBNDP (port)) | |
465 | port = scm_cur_outp; | |
466 | else | |
467 | SCM_ASSERT (SCM_NIMP (port) && SCM_OPOUTPORTP (port), port, SCM_ARG2, s_write); | |
468 | scm_iprin1 (obj, port, 1); | |
469 | #ifdef HAVE_PIPE | |
470 | # ifdef EPIPE | |
471 | if (EPIPE == errno) | |
472 | scm_close_port (port); | |
473 | # endif | |
474 | #endif | |
475 | return SCM_UNSPECIFIED; | |
476 | } | |
477 | ||
478 | ||
479 | SCM_PROC(s_display, "display", 1, 1, 0, scm_display); | |
480 | #ifdef __STDC__ | |
481 | SCM | |
482 | scm_display (SCM obj, SCM port) | |
483 | #else | |
484 | SCM | |
485 | scm_display (obj, port) | |
486 | SCM obj; | |
487 | SCM port; | |
488 | #endif | |
489 | { | |
490 | if (SCM_UNBNDP (port)) | |
491 | port = scm_cur_outp; | |
492 | else | |
493 | SCM_ASSERT (SCM_NIMP (port) && SCM_OPOUTPORTP (port), port, SCM_ARG2, s_display); | |
494 | scm_iprin1 (obj, port, 0); | |
495 | #ifdef HAVE_PIPE | |
496 | # ifdef EPIPE | |
497 | if (EPIPE == errno) | |
498 | scm_close_port (port); | |
499 | # endif | |
500 | #endif | |
501 | return SCM_UNSPECIFIED; | |
502 | } | |
503 | ||
504 | SCM_PROC(s_newline, "newline", 0, 1, 0, scm_newline); | |
505 | #ifdef __STDC__ | |
506 | SCM | |
507 | scm_newline(SCM port) | |
508 | #else | |
509 | SCM | |
510 | scm_newline (port) | |
511 | SCM port; | |
512 | #endif | |
513 | { | |
514 | if (SCM_UNBNDP (port)) | |
515 | port = scm_cur_outp; | |
516 | else | |
517 | SCM_ASSERT (SCM_NIMP (port) && SCM_OPOUTPORTP (port), port, SCM_ARG1, s_newline); | |
518 | scm_gen_putc ('\n', port); | |
519 | #ifdef HAVE_PIPE | |
520 | # ifdef EPIPE | |
521 | if (EPIPE == errno) | |
522 | scm_close_port (port); | |
523 | else | |
524 | # endif | |
525 | #endif | |
526 | if (port == scm_cur_outp) | |
527 | scm_fflush (port); | |
528 | return SCM_UNSPECIFIED; | |
529 | } | |
530 | ||
531 | SCM_PROC(s_write_char, "write-char", 1, 1, 0, scm_write_char); | |
532 | #ifdef __STDC__ | |
533 | SCM | |
534 | scm_write_char (SCM chr, SCM port) | |
535 | #else | |
536 | SCM | |
537 | scm_write_char (chr, port) | |
538 | SCM chr; | |
539 | SCM port; | |
540 | #endif | |
541 | { | |
542 | if (SCM_UNBNDP (port)) | |
543 | port = scm_cur_outp; | |
544 | else | |
545 | SCM_ASSERT (SCM_NIMP (port) && SCM_OPOUTPORTP (port), port, SCM_ARG2, s_write_char); | |
546 | SCM_ASSERT (SCM_ICHRP (chr), chr, SCM_ARG1, s_write_char); | |
547 | scm_gen_putc ((int) SCM_ICHR (chr), port); | |
548 | #ifdef HAVE_PIPE | |
549 | # ifdef EPIPE | |
550 | if (EPIPE == errno) | |
551 | scm_close_port (port); | |
552 | # endif | |
553 | #endif | |
554 | return SCM_UNSPECIFIED; | |
555 | } | |
556 | ||
557 | ||
558 | \f | |
559 | ||
560 | #ifdef __STDC__ | |
561 | void | |
562 | scm_init_print (void) | |
563 | #else | |
564 | void | |
565 | scm_init_print () | |
566 | #endif | |
567 | { | |
568 | #include "print.x" | |
569 | } | |
570 |