Commit | Line | Data |
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78a0461a | 1 | /* Copyright (C) 1995-1999 Free Software Foundation, Inc. |
0f2d19dd JB |
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 | |
82892bed JB |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
17 | * |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
0f2d19dd JB |
41 | \f |
42 | ||
43 | #include <stdio.h> | |
44 | #include "_scm.h" | |
20e6290e JB |
45 | #include "chars.h" |
46 | #include "genio.h" | |
20e6290e JB |
47 | #include "smob.h" |
48 | #include "eval.h" | |
ddeae7ca | 49 | #include "macros.h" |
20e6290e JB |
50 | #include "procprop.h" |
51 | #include "read.h" | |
52 | #include "weaks.h" | |
53 | #include "unif.h" | |
dbef8851 | 54 | #include "alist.h" |
c62fbfe1 | 55 | #include "struct.h" |
8b840115 | 56 | #include "objects.h" |
0f2d19dd | 57 | |
20e6290e | 58 | #include "print.h" |
0f2d19dd JB |
59 | \f |
60 | ||
61 | /* {Names of immediate symbols} | |
62 | * | |
63 | * This table must agree with the declarations in scm.h: {Immediate Symbols}. | |
64 | */ | |
65 | ||
66 | char *scm_isymnames[] = | |
67 | { | |
68 | /* This table must agree with the declarations */ | |
69 | "#@and", | |
70 | "#@begin", | |
71 | "#@case", | |
72 | "#@cond", | |
73 | "#@do", | |
74 | "#@if", | |
75 | "#@lambda", | |
76 | "#@let", | |
77 | "#@let*", | |
78 | "#@letrec", | |
79 | "#@or", | |
80 | "#@quote", | |
81 | "#@set!", | |
82 | "#@define", | |
83 | #if 0 | |
84 | "#@literal-variable-ref", | |
85 | "#@literal-variable-set!", | |
86 | #endif | |
87 | "#@apply", | |
88 | "#@call-with-current-continuation", | |
89 | ||
90 | /* user visible ISYMS */ | |
91 | /* other keywords */ | |
92 | /* Flags */ | |
93 | ||
94 | "#f", | |
95 | "#t", | |
96 | "#<undefined>", | |
97 | "#<eof>", | |
98 | "()", | |
4df91bd6 MD |
99 | "#<unspecified>", |
100 | "#@dispatch", | |
43c667e9 MD |
101 | "#@slot-ref", |
102 | "#@slot-set!", | |
159500fb | 103 | |
159500fb MD |
104 | /* Multi-language support */ |
105 | ||
106 | "#@nil-cond", | |
107 | "#@nil-ify", | |
108 | "#@t-ify", | |
109 | "#@0-cond", | |
110 | "#@0-ify", | |
111 | "#@1-ify", | |
ccd0e478 MD |
112 | "#@bind", |
113 | ||
114 | "#@delay" | |
0f2d19dd JB |
115 | }; |
116 | ||
e6e4c9af | 117 | scm_option scm_print_opts[] = { |
b7ff98dd | 118 | { SCM_OPTION_SCM, "closure-hook", SCM_BOOL_F, |
84f6a34a MD |
119 | "Hook for printing closures." }, |
120 | { SCM_OPTION_BOOLEAN, "source", 0, | |
121 | "Print closures with source." } | |
e6e4c9af MD |
122 | }; |
123 | ||
b7ff98dd | 124 | SCM_PROC (s_print_options, "print-options-interface", 0, 1, 0, scm_print_options); |
1cc91f1b | 125 | |
e6e4c9af | 126 | SCM |
a51ea417 MD |
127 | scm_print_options (setting) |
128 | SCM setting; | |
e6e4c9af | 129 | { |
a51ea417 | 130 | SCM ans = scm_options (setting, |
b7ff98dd MD |
131 | scm_print_opts, |
132 | SCM_N_PRINT_OPTIONS, | |
133 | s_print_options); | |
e6e4c9af MD |
134 | return ans; |
135 | } | |
e6e4c9af | 136 | |
0f2d19dd JB |
137 | \f |
138 | /* {Printing of Scheme Objects} | |
139 | */ | |
140 | ||
a51ea417 | 141 | /* Detection of circular references. |
c62fbfe1 MD |
142 | * |
143 | * Due to other constraints in the implementation, this code has bad | |
144 | * time complexity (O (depth * N)), The printer code will be | |
145 | * completely rewritten before next release of Guile. The new code | |
146 | * will be O(N). | |
a51ea417 | 147 | */ |
c62fbfe1 | 148 | #define PUSH_REF(pstate, obj) \ |
a51ea417 | 149 | { \ |
c62fbfe1 MD |
150 | pstate->ref_stack[pstate->top++] = (obj); \ |
151 | if (pstate->top == pstate->ceiling) \ | |
152 | grow_ref_stack (pstate); \ | |
153 | } | |
a51ea417 | 154 | |
c62fbfe1 | 155 | #define ENTER_NESTED_DATA(pstate, obj, label) \ |
a51ea417 | 156 | { \ |
5ca6dc39 | 157 | register unsigned long i; \ |
c62fbfe1 MD |
158 | for (i = 0; i < pstate->top; ++i) \ |
159 | if (pstate->ref_stack[i] == (obj)) \ | |
160 | goto label; \ | |
161 | if (pstate->fancyp) \ | |
162 | { \ | |
163 | if (pstate->top - pstate->list_offset >= pstate->level) \ | |
164 | { \ | |
b7f3516f | 165 | scm_putc ('#', port); \ |
c62fbfe1 MD |
166 | return; \ |
167 | } \ | |
168 | } \ | |
169 | PUSH_REF(pstate, obj); \ | |
a51ea417 MD |
170 | } \ |
171 | ||
c62fbfe1 MD |
172 | #define EXIT_NESTED_DATA(pstate) { --pstate->top; } |
173 | ||
bb35f315 | 174 | SCM scm_print_state_vtable; |
c4f37e80 | 175 | |
bb35f315 | 176 | static SCM print_state_pool; |
c4f37e80 | 177 | |
f843a84c | 178 | #ifdef GUILE_DEBUG /* Used for debugging purposes */ |
c62fbfe1 | 179 | SCM_PROC(s_current_pstate, "current-pstate", 0, 0, 0, scm_current_pstate); |
1cc91f1b | 180 | |
c62fbfe1 MD |
181 | SCM |
182 | scm_current_pstate () | |
c62fbfe1 MD |
183 | { |
184 | return SCM_CADR (print_state_pool); | |
185 | } | |
186 | #endif | |
187 | ||
188 | #define PSTATE_SIZE 50L | |
189 | ||
698c0295 MD |
190 | static SCM make_print_state SCM_P ((void)); |
191 | ||
192 | static SCM | |
193 | make_print_state () | |
194 | { | |
195 | SCM print_state = scm_make_struct (SCM_CAR (print_state_pool), /* pstate type */ | |
bf685b6d | 196 | SCM_INUM0, |
698c0295 | 197 | SCM_EOL); |
bf685b6d MD |
198 | scm_print_state *pstate = SCM_PRINT_STATE (print_state); |
199 | pstate->ref_vect = scm_make_vector (SCM_MAKINUM (PSTATE_SIZE), | |
bf685b6d MD |
200 | SCM_UNDEFINED); |
201 | pstate->ref_stack = SCM_VELTS (pstate->ref_vect); | |
202 | pstate->ceiling = SCM_LENGTH (pstate->ref_vect); | |
698c0295 MD |
203 | return print_state; |
204 | } | |
1cc91f1b | 205 | |
c62fbfe1 MD |
206 | SCM |
207 | scm_make_print_state () | |
c62fbfe1 | 208 | { |
698c0295 MD |
209 | SCM answer = 0; |
210 | ||
211 | /* First try to allocate a print state from the pool */ | |
212 | SCM_DEFER_INTS; | |
213 | if (SCM_NNULLP (SCM_CDR (print_state_pool))) | |
214 | { | |
215 | answer = SCM_CADR (print_state_pool); | |
216 | SCM_SETCDR (print_state_pool, SCM_CDDR (print_state_pool)); | |
217 | } | |
218 | SCM_ALLOW_INTS; | |
219 | ||
220 | return answer ? answer : make_print_state (); | |
c62fbfe1 | 221 | } |
a51ea417 | 222 | |
698c0295 MD |
223 | void |
224 | scm_free_print_state (print_state) | |
225 | SCM print_state; | |
226 | { | |
227 | SCM handle; | |
228 | scm_print_state *pstate = SCM_PRINT_STATE (print_state); | |
229 | /* Cleanup before returning print state to pool. | |
230 | * It is better to do it here. Doing it in scm_prin1 | |
231 | * would cost more since that function is called much more | |
232 | * often. | |
233 | */ | |
234 | pstate->fancyp = 0; | |
bb35f315 | 235 | pstate->revealed = 0; |
698c0295 MD |
236 | SCM_NEWCELL (handle); |
237 | SCM_DEFER_INTS; | |
238 | SCM_SETCAR (handle, print_state); | |
239 | SCM_SETCDR (handle, SCM_CDR (print_state_pool)); | |
240 | SCM_SETCDR (print_state_pool, handle); | |
241 | SCM_ALLOW_INTS; | |
242 | } | |
1cc91f1b JB |
243 | |
244 | static void grow_ref_stack SCM_P ((scm_print_state *pstate)); | |
245 | ||
a51ea417 | 246 | static void |
c62fbfe1 MD |
247 | grow_ref_stack (pstate) |
248 | scm_print_state *pstate; | |
a51ea417 | 249 | { |
bf685b6d MD |
250 | int new_size = 2 * pstate->ceiling; |
251 | scm_vector_set_length_x (pstate->ref_vect, SCM_MAKINUM (new_size)); | |
252 | pstate->ref_stack = SCM_VELTS (pstate->ref_vect); | |
253 | pstate->ceiling = new_size; | |
a51ea417 MD |
254 | } |
255 | ||
1cc91f1b JB |
256 | |
257 | static void print_circref SCM_P ((SCM port, scm_print_state *pstate, SCM ref)); | |
258 | ||
a51ea417 | 259 | static void |
c62fbfe1 MD |
260 | print_circref (port, pstate, ref) |
261 | SCM port; | |
262 | scm_print_state *pstate; | |
263 | SCM ref; | |
a51ea417 | 264 | { |
c62fbfe1 MD |
265 | register int i; |
266 | int self = pstate->top - 1; | |
267 | i = pstate->top - 1; | |
268 | if (SCM_CONSP (pstate->ref_stack[i])) | |
269 | { | |
270 | while (i > 0) | |
271 | { | |
272 | if (SCM_NCONSP (pstate->ref_stack[i - 1]) | |
273 | || SCM_CDR (pstate->ref_stack[i - 1]) != pstate->ref_stack[i]) | |
274 | break; | |
275 | --i; | |
276 | } | |
277 | self = i; | |
278 | } | |
279 | for (i = pstate->top - 1; 1; --i) | |
280 | if (pstate->ref_stack[i] == ref) | |
281 | break; | |
b7f3516f | 282 | scm_putc ('#', port); |
c62fbfe1 | 283 | scm_intprint (i - self, 10, port); |
b7f3516f | 284 | scm_putc ('#', port); |
a51ea417 MD |
285 | } |
286 | ||
c62fbfe1 | 287 | /* Print generally. Handles both write and display according to PSTATE. |
0f2d19dd | 288 | */ |
8b840115 MD |
289 | SCM_GPROC(s_write, "write", 1, 1, 0, scm_write, g_write); |
290 | SCM_GPROC(s_display, "display", 1, 1, 0, scm_display, g_display); | |
1cc91f1b | 291 | |
0f2d19dd | 292 | void |
c62fbfe1 | 293 | scm_iprin1 (exp, port, pstate) |
0f2d19dd JB |
294 | SCM exp; |
295 | SCM port; | |
c62fbfe1 | 296 | scm_print_state *pstate; |
0f2d19dd | 297 | { |
0f2d19dd JB |
298 | taloop: |
299 | switch (7 & (int) exp) | |
300 | { | |
301 | case 2: | |
302 | case 6: | |
303 | scm_intprint (SCM_INUM (exp), 10, port); | |
304 | break; | |
305 | case 4: | |
306 | if (SCM_ICHRP (exp)) | |
307 | { | |
5ca6dc39 JB |
308 | register long i; |
309 | ||
0f2d19dd | 310 | i = SCM_ICHR (exp); |
b7f3516f TT |
311 | if (SCM_WRITINGP (pstate)) |
312 | { | |
313 | scm_puts ("#\\", port); | |
314 | if ((i >= 0) && (i <= ' ') && scm_charnames[i]) | |
315 | scm_puts (scm_charnames[i], port); | |
316 | else if (i < 0 || i > '\177') | |
317 | scm_intprint (i, 8, port); | |
318 | else | |
319 | scm_putc (i, port); | |
320 | } | |
321 | else | |
322 | scm_putc (i, port); | |
0f2d19dd | 323 | } |
a51ea417 | 324 | else if (SCM_IFLAGP (exp) |
5ca6dc39 | 325 | && ((size_t) SCM_ISYMNUM (exp) < (sizeof scm_isymnames / sizeof (char *)))) |
b7f3516f | 326 | scm_puts (SCM_ISYMCHARS (exp), port); |
0f2d19dd JB |
327 | else if (SCM_ILOCP (exp)) |
328 | { | |
b7f3516f | 329 | scm_puts ("#@", port); |
0f2d19dd | 330 | scm_intprint ((long) SCM_IFRAME (exp), 10, port); |
b7f3516f | 331 | scm_putc (SCM_ICDRP (exp) ? '-' : '+', port); |
0f2d19dd JB |
332 | scm_intprint ((long) SCM_IDIST (exp), 10, port); |
333 | } | |
334 | else | |
335 | goto idef; | |
336 | break; | |
337 | case 1: | |
338 | /* gloc */ | |
b7f3516f | 339 | scm_puts ("#@", port); |
0f2d19dd JB |
340 | exp = SCM_CAR (exp - 1); |
341 | goto taloop; | |
342 | default: | |
343 | idef: | |
344 | scm_ipruk ("immediate", exp, port); | |
345 | break; | |
346 | case 0: | |
347 | switch (SCM_TYP7 (exp)) | |
348 | { | |
349 | case scm_tcs_cons_gloc: | |
350 | ||
351 | if (SCM_CDR (SCM_CAR (exp) - 1L) == 0) | |
352 | { | |
c4f37e80 | 353 | ENTER_NESTED_DATA (pstate, exp, circref); |
8b840115 MD |
354 | if (SCM_OBJ_CLASS_FLAGS (exp) & SCM_CLASSF_GOOPS) |
355 | { | |
356 | SCM pwps, print = pstate->writingp ? g_write : g_display; | |
357 | if (!print) | |
358 | goto print_struct; | |
359 | SCM_NEWSMOB (pwps, | |
360 | scm_tc16_port_with_ps, | |
361 | scm_cons (port, pstate->handle)); | |
362 | scm_call_generic_2 (print, exp, pwps); | |
363 | } | |
364 | else | |
365 | { | |
366 | print_struct: | |
367 | scm_print_struct (exp, port, pstate); | |
368 | } | |
c4f37e80 | 369 | EXIT_NESTED_DATA (pstate); |
0f2d19dd JB |
370 | break; |
371 | } | |
372 | ||
373 | case scm_tcs_cons_imcar: | |
374 | case scm_tcs_cons_nimcar: | |
c62fbfe1 MD |
375 | ENTER_NESTED_DATA (pstate, exp, circref); |
376 | scm_iprlist ("(", exp, ')', port, pstate); | |
377 | EXIT_NESTED_DATA (pstate); | |
a51ea417 MD |
378 | break; |
379 | circref: | |
c62fbfe1 | 380 | print_circref (port, pstate, exp); |
0f2d19dd | 381 | break; |
7332df66 | 382 | macros: |
80ea260c | 383 | if (!SCM_CLOSUREP (SCM_CDR (exp))) |
7332df66 | 384 | goto prinmacro; |
0f2d19dd | 385 | case scm_tcs_closures: |
7332df66 MD |
386 | /* The user supplied print closure procedure must handle |
387 | macro closures as well. */ | |
bb35f315 MV |
388 | if (SCM_FALSEP (scm_procedure_p (SCM_PRINT_CLOSURE)) |
389 | || SCM_FALSEP (scm_printer_apply (SCM_PRINT_CLOSURE, | |
77c25af7 | 390 | exp, port, pstate))) |
bb35f315 | 391 | { |
ba031394 | 392 | SCM name, code, env; |
bb35f315 MV |
393 | if (SCM_TYP16 (exp) == scm_tc16_macro) |
394 | { | |
395 | /* Printing a macro. */ | |
396 | prinmacro: | |
397 | name = scm_macro_name (exp); | |
398 | if (!SCM_CLOSUREP (SCM_CDR (exp))) | |
399 | { | |
f44dd64b | 400 | code = env = 0; |
b7f3516f | 401 | scm_puts ("#<primitive-", port); |
bb35f315 MV |
402 | } |
403 | else | |
404 | { | |
405 | code = SCM_CODE (SCM_CDR (exp)); | |
ba031394 | 406 | env = SCM_ENV (SCM_CDR (exp)); |
b7f3516f | 407 | scm_puts ("#<", port); |
bb35f315 MV |
408 | } |
409 | if (SCM_CAR (exp) & (3L << 16)) | |
b7f3516f | 410 | scm_puts ("macro", port); |
bb35f315 | 411 | else |
b7f3516f | 412 | scm_puts ("syntax", port); |
bb35f315 | 413 | if (SCM_CAR (exp) & (2L << 16)) |
b7f3516f | 414 | scm_putc ('!', port); |
bb35f315 MV |
415 | } |
416 | else | |
417 | { | |
418 | /* Printing a closure. */ | |
419 | name = scm_procedure_name (exp); | |
420 | code = SCM_CODE (exp); | |
ba031394 | 421 | env = SCM_ENV (exp); |
b7f3516f | 422 | scm_puts ("#<procedure", port); |
bb35f315 MV |
423 | } |
424 | if (SCM_NIMP (name) && SCM_ROSTRINGP (name)) | |
425 | { | |
b7f3516f TT |
426 | scm_putc (' ', port); |
427 | scm_puts (SCM_ROCHARS (name), port); | |
bb35f315 MV |
428 | } |
429 | if (code) | |
430 | { | |
ba031394 MD |
431 | if (SCM_PRINT_SOURCE_P) |
432 | { | |
433 | code = scm_unmemocopy (code, | |
434 | SCM_EXTEND_ENV (SCM_CAR (code), | |
435 | SCM_EOL, | |
436 | env)); | |
437 | ENTER_NESTED_DATA (pstate, exp, circref); | |
438 | scm_iprlist (" ", code, '>', port, pstate); | |
439 | EXIT_NESTED_DATA (pstate); | |
440 | } | |
441 | else | |
442 | { | |
443 | if (SCM_TYP16 (exp) != scm_tc16_macro) | |
444 | { | |
b7f3516f | 445 | scm_putc (' ', port); |
ba031394 MD |
446 | scm_iprin1 (SCM_CAR (code), port, pstate); |
447 | } | |
b7f3516f | 448 | scm_putc ('>', port); |
ba031394 | 449 | } |
bb35f315 MV |
450 | } |
451 | else | |
b7f3516f | 452 | scm_putc ('>', port); |
bb35f315 | 453 | } |
0f2d19dd | 454 | break; |
0f2d19dd JB |
455 | case scm_tc7_substring: |
456 | case scm_tc7_string: | |
c62fbfe1 | 457 | if (SCM_WRITINGP (pstate)) |
0f2d19dd | 458 | { |
5ca6dc39 JB |
459 | scm_sizet i; |
460 | ||
b7f3516f | 461 | scm_putc ('"', port); |
0f2d19dd JB |
462 | for (i = 0; i < SCM_ROLENGTH (exp); ++i) |
463 | switch (SCM_ROCHARS (exp)[i]) | |
464 | { | |
dbef8851 | 465 | case '"': |
0f2d19dd | 466 | case '\\': |
b7f3516f | 467 | scm_putc ('\\', port); |
0f2d19dd | 468 | default: |
b7f3516f | 469 | scm_putc (SCM_ROCHARS (exp)[i], port); |
0f2d19dd | 470 | } |
b7f3516f | 471 | scm_putc ('"', port); |
0f2d19dd JB |
472 | break; |
473 | } | |
474 | else | |
b7f3516f TT |
475 | scm_lfwrite (SCM_ROCHARS (exp), (scm_sizet) SCM_ROLENGTH (exp), |
476 | port); | |
0f2d19dd JB |
477 | break; |
478 | case scm_tcs_symbols: | |
0f2d19dd JB |
479 | { |
480 | int pos; | |
481 | int end; | |
482 | int len; | |
483 | char * str; | |
484 | int weird; | |
485 | int maybe_weird; | |
4dc2435a | 486 | int mw_pos = 0; |
0f2d19dd JB |
487 | |
488 | len = SCM_LENGTH (exp); | |
489 | str = SCM_CHARS (exp); | |
490 | scm_remember (&exp); | |
491 | pos = 0; | |
492 | weird = 0; | |
493 | maybe_weird = 0; | |
494 | ||
495 | if (len == 0) | |
b7f3516f | 496 | scm_lfwrite ("#{}#", 4, port); |
0f2d19dd JB |
497 | |
498 | for (end = pos; end < len; ++end) | |
499 | switch (str[end]) | |
500 | { | |
501 | #ifdef BRACKETS_AS_PARENS | |
502 | case '[': | |
503 | case ']': | |
504 | #endif | |
505 | case '(': | |
506 | case ')': | |
dbef8851 | 507 | case '"': |
0f2d19dd JB |
508 | case ';': |
509 | case SCM_WHITE_SPACES: | |
510 | case SCM_LINE_INCREMENTORS: | |
511 | weird_handler: | |
512 | if (maybe_weird) | |
513 | { | |
514 | end = mw_pos; | |
515 | maybe_weird = 0; | |
516 | } | |
517 | if (!weird) | |
518 | { | |
b7f3516f | 519 | scm_lfwrite ("#{", 2, port); |
0f2d19dd JB |
520 | weird = 1; |
521 | } | |
522 | if (pos < end) | |
523 | { | |
b7f3516f | 524 | scm_lfwrite (str + pos, end - pos, port); |
0f2d19dd JB |
525 | } |
526 | { | |
527 | char buf[2]; | |
528 | buf[0] = '\\'; | |
529 | buf[1] = str[end]; | |
b7f3516f | 530 | scm_lfwrite (buf, 2, port); |
0f2d19dd JB |
531 | } |
532 | pos = end + 1; | |
533 | break; | |
534 | case '\\': | |
535 | if (weird) | |
536 | goto weird_handler; | |
537 | if (!maybe_weird) | |
538 | { | |
539 | maybe_weird = 1; | |
540 | mw_pos = pos; | |
541 | } | |
542 | break; | |
543 | case '}': | |
544 | case '#': | |
545 | if (weird) | |
546 | goto weird_handler; | |
547 | break; | |
548 | default: | |
549 | break; | |
550 | } | |
551 | if (pos < end) | |
b7f3516f | 552 | scm_lfwrite (str + pos, end - pos, port); |
0f2d19dd | 553 | if (weird) |
b7f3516f | 554 | scm_lfwrite ("}#", 2, port); |
0f2d19dd JB |
555 | break; |
556 | } | |
557 | case scm_tc7_wvect: | |
c62fbfe1 | 558 | ENTER_NESTED_DATA (pstate, exp, circref); |
0f2d19dd | 559 | if (SCM_IS_WHVEC (exp)) |
b7f3516f | 560 | scm_puts ("#wh(", port); |
0f2d19dd | 561 | else |
b7f3516f | 562 | scm_puts ("#w(", port); |
0f2d19dd JB |
563 | goto common_vector_printer; |
564 | ||
565 | case scm_tc7_vector: | |
c62fbfe1 | 566 | ENTER_NESTED_DATA (pstate, exp, circref); |
b7f3516f | 567 | scm_puts ("#(", port); |
0f2d19dd | 568 | common_vector_printer: |
9fbaf27c | 569 | { |
5ca6dc39 | 570 | register long i; |
9fbaf27c MD |
571 | int last = SCM_LENGTH (exp) - 1; |
572 | int cutp = 0; | |
573 | if (pstate->fancyp && SCM_LENGTH (exp) > pstate->length) | |
574 | { | |
575 | last = pstate->length - 1; | |
576 | cutp = 1; | |
577 | } | |
578 | for (i = 0; i < last; ++i) | |
579 | { | |
580 | /* CHECK_INTS; */ | |
581 | scm_iprin1 (SCM_VELTS (exp)[i], port, pstate); | |
b7f3516f | 582 | scm_putc (' ', port); |
9fbaf27c MD |
583 | } |
584 | if (i == last) | |
585 | { | |
586 | /* CHECK_INTS; */ | |
587 | scm_iprin1 (SCM_VELTS (exp)[i], port, pstate); | |
588 | } | |
589 | if (cutp) | |
b7f3516f TT |
590 | scm_puts (" ...", port); |
591 | scm_putc (')', port); | |
9fbaf27c | 592 | } |
c62fbfe1 | 593 | EXIT_NESTED_DATA (pstate); |
0f2d19dd | 594 | break; |
afe5177e | 595 | #ifdef HAVE_ARRAYS |
0f2d19dd JB |
596 | case scm_tc7_bvect: |
597 | case scm_tc7_byvect: | |
598 | case scm_tc7_svect: | |
599 | case scm_tc7_ivect: | |
600 | case scm_tc7_uvect: | |
601 | case scm_tc7_fvect: | |
602 | case scm_tc7_dvect: | |
603 | case scm_tc7_cvect: | |
5c11cc9d | 604 | #ifdef HAVE_LONG_LONGS |
0f2d19dd JB |
605 | case scm_tc7_llvect: |
606 | #endif | |
c62fbfe1 | 607 | scm_raprin1 (exp, port, pstate); |
0f2d19dd | 608 | break; |
afe5177e | 609 | #endif |
0f2d19dd | 610 | case scm_tcs_subrs: |
9de33deb MD |
611 | scm_puts (SCM_SUBR_GENERIC (exp) && *SCM_SUBR_GENERIC (exp) |
612 | ? "#<primitive-generic " | |
613 | : "#<primitive-procedure ", | |
614 | port); | |
b7f3516f TT |
615 | scm_puts (SCM_CHARS (SCM_SNAME (exp)), port); |
616 | scm_putc ('>', port); | |
0f2d19dd JB |
617 | break; |
618 | #ifdef CCLO | |
619 | case scm_tc7_cclo: | |
56977059 MD |
620 | { |
621 | SCM proc = SCM_CCLO_SUBR (exp); | |
622 | if (proc == scm_f_gsubr_apply) | |
623 | { | |
624 | /* Print gsubrs as primitives */ | |
c180dfd3 | 625 | SCM name = scm_procedure_name (exp); |
56977059 MD |
626 | scm_puts ("#<primitive-procedure", port); |
627 | if (SCM_NFALSEP (name)) | |
628 | { | |
629 | scm_putc (' ', port); | |
630 | scm_puts (SCM_CHARS (name), port); | |
631 | } | |
632 | } | |
633 | else | |
634 | { | |
635 | scm_puts ("#<compiled-closure ", port); | |
636 | scm_iprin1 (proc, port, pstate); | |
637 | } | |
638 | scm_putc ('>', port); | |
639 | } | |
0f2d19dd JB |
640 | break; |
641 | #endif | |
c180dfd3 MD |
642 | case scm_tc7_pws: |
643 | scm_puts ("#<procedure-with-setter", port); | |
644 | { | |
645 | SCM name = scm_procedure_name (exp); | |
646 | if (SCM_NFALSEP (name)) | |
647 | { | |
648 | scm_putc (' ', port); | |
649 | scm_puts (SCM_ROCHARS (name), port); | |
650 | } | |
651 | } | |
652 | scm_putc ('>', port); | |
653 | break; | |
0f2d19dd | 654 | case scm_tc7_contin: |
b7f3516f | 655 | scm_puts ("#<continuation ", port); |
0f2d19dd | 656 | scm_intprint (SCM_LENGTH (exp), 10, port); |
b7f3516f | 657 | scm_puts (" @ ", port); |
0f2d19dd | 658 | scm_intprint ((long) SCM_CHARS (exp), 16, port); |
b7f3516f | 659 | scm_putc ('>', port); |
0f2d19dd JB |
660 | break; |
661 | case scm_tc7_port: | |
5ca6dc39 JB |
662 | { |
663 | register long i = SCM_PTOBNUM (exp); | |
664 | if (i < scm_numptob | |
665 | && scm_ptobs[i].print | |
666 | && (scm_ptobs[i].print) (exp, port, pstate)) | |
a51ea417 | 667 | break; |
5ca6dc39 JB |
668 | goto punk; |
669 | } | |
670 | case scm_tc7_smob: | |
671 | { | |
672 | register long i; | |
673 | ENTER_NESTED_DATA (pstate, exp, circref); | |
674 | i = SCM_SMOBNUM (exp); | |
675 | if (i < scm_numsmob && scm_smobs[i].print | |
676 | && (scm_smobs[i].print) (exp, port, pstate)) | |
677 | { | |
678 | EXIT_NESTED_DATA (pstate); | |
679 | break; | |
680 | } | |
681 | EXIT_NESTED_DATA (pstate); | |
682 | /* Macros have their print field set to NULL. They are | |
683 | handled at the same place as closures in order to achieve | |
684 | non-redundancy. Placing the condition here won't slow | |
685 | down printing of other smobs. */ | |
686 | if (SCM_TYP16 (exp) == scm_tc16_macro) | |
687 | goto macros; | |
688 | } | |
0f2d19dd | 689 | default: |
a51ea417 MD |
690 | punk: |
691 | scm_ipruk ("type", exp, port); | |
0f2d19dd JB |
692 | } |
693 | } | |
694 | } | |
695 | ||
c62fbfe1 MD |
696 | /* Print states are necessary for circular reference safe printing. |
697 | * They are also expensive to allocate. Therefore print states are | |
698 | * kept in a pool so that they can be reused. | |
699 | */ | |
1cc91f1b | 700 | |
bb35f315 MV |
701 | /* The PORT argument can also be a print-state/port pair, which will |
702 | * then be used instead of allocating a new print state. This is | |
703 | * useful for continuing a chain of print calls from Scheme. */ | |
704 | ||
a51ea417 | 705 | void |
c62fbfe1 | 706 | scm_prin1 (exp, port, writingp) |
a51ea417 MD |
707 | SCM exp; |
708 | SCM port; | |
c62fbfe1 | 709 | int writingp; |
a51ea417 | 710 | { |
c4f37e80 MV |
711 | SCM handle = SCM_BOOL_F; /* Will GC protect the handle whilst unlinked */ |
712 | SCM pstate_scm; | |
c62fbfe1 MD |
713 | scm_print_state *pstate; |
714 | ||
bb35f315 MV |
715 | /* If PORT is a print-state/port pair, use that. Else create a new |
716 | print-state. */ | |
c4f37e80 | 717 | |
52235e71 | 718 | if (SCM_NIMP (port) && SCM_PORT_WITH_PS_P (port)) |
bb35f315 | 719 | { |
52235e71 MD |
720 | pstate_scm = SCM_PORT_WITH_PS_PS (port); |
721 | port = SCM_PORT_WITH_PS_PORT (port); | |
bb35f315 MV |
722 | } |
723 | else | |
c62fbfe1 | 724 | { |
c4f37e80 MV |
725 | /* First try to allocate a print state from the pool */ |
726 | SCM_DEFER_INTS; | |
727 | if (SCM_NNULLP (SCM_CDR (print_state_pool))) | |
728 | { | |
729 | handle = SCM_CDR (print_state_pool); | |
730 | SCM_SETCDR (print_state_pool, SCM_CDDR (print_state_pool)); | |
731 | } | |
732 | SCM_ALLOW_INTS; | |
733 | if (handle == SCM_BOOL_F) | |
734 | handle = scm_cons (make_print_state (), SCM_EOL); | |
735 | pstate_scm = SCM_CAR (handle); | |
c62fbfe1 | 736 | } |
c62fbfe1 | 737 | |
c4f37e80 | 738 | pstate = SCM_PRINT_STATE (pstate_scm); |
c62fbfe1 MD |
739 | pstate->writingp = writingp; |
740 | scm_iprin1 (exp, port, pstate); | |
741 | ||
bb35f315 MV |
742 | /* Return print state to pool if it has been created above and |
743 | hasn't escaped to Scheme. */ | |
744 | ||
745 | if (handle != SCM_BOOL_F && !pstate->revealed) | |
c4f37e80 MV |
746 | { |
747 | SCM_DEFER_INTS; | |
748 | SCM_SETCDR (handle, SCM_CDR (print_state_pool)); | |
749 | SCM_SETCDR (print_state_pool, handle); | |
750 | SCM_ALLOW_INTS; | |
751 | } | |
a51ea417 MD |
752 | } |
753 | ||
0f2d19dd JB |
754 | |
755 | /* Print an integer. | |
756 | */ | |
1cc91f1b | 757 | |
0f2d19dd JB |
758 | void |
759 | scm_intprint (n, radix, port) | |
760 | long n; | |
761 | int radix; | |
762 | SCM port; | |
0f2d19dd JB |
763 | { |
764 | char num_buf[SCM_INTBUFLEN]; | |
b7f3516f | 765 | scm_lfwrite (num_buf, scm_iint2str (n, radix, num_buf), port); |
0f2d19dd JB |
766 | } |
767 | ||
768 | /* Print an object of unrecognized type. | |
769 | */ | |
1cc91f1b | 770 | |
0f2d19dd JB |
771 | void |
772 | scm_ipruk (hdr, ptr, port) | |
773 | char *hdr; | |
774 | SCM ptr; | |
775 | SCM port; | |
0f2d19dd | 776 | { |
b7f3516f TT |
777 | scm_puts ("#<unknown-", port); |
778 | scm_puts (hdr, port); | |
0f2d19dd JB |
779 | if (SCM_CELLP (ptr)) |
780 | { | |
b7f3516f | 781 | scm_puts (" (0x", port); |
0f2d19dd | 782 | scm_intprint (SCM_CAR (ptr), 16, port); |
b7f3516f | 783 | scm_puts (" . 0x", port); |
0f2d19dd | 784 | scm_intprint (SCM_CDR (ptr), 16, port); |
b7f3516f | 785 | scm_puts (") @", port); |
0f2d19dd | 786 | } |
b7f3516f | 787 | scm_puts (" 0x", port); |
0f2d19dd | 788 | scm_intprint (ptr, 16, port); |
b7f3516f | 789 | scm_putc ('>', port); |
0f2d19dd JB |
790 | } |
791 | ||
792 | /* Print a list. | |
793 | */ | |
a51ea417 | 794 | |
1cc91f1b | 795 | |
0f2d19dd | 796 | void |
c62fbfe1 | 797 | scm_iprlist (hdr, exp, tlr, port, pstate) |
0f2d19dd JB |
798 | char *hdr; |
799 | SCM exp; | |
805df3e8 | 800 | int tlr; |
0f2d19dd | 801 | SCM port; |
c62fbfe1 | 802 | scm_print_state *pstate; |
0f2d19dd | 803 | { |
c62fbfe1 MD |
804 | register SCM hare, tortoise; |
805 | int floor = pstate->top - 2; | |
b7f3516f | 806 | scm_puts (hdr, port); |
0f2d19dd | 807 | /* CHECK_INTS; */ |
c62fbfe1 MD |
808 | if (pstate->fancyp) |
809 | goto fancy_printing; | |
810 | ||
811 | /* Run a hare and tortoise so that total time complexity will be | |
812 | O(depth * N) instead of O(N^2). */ | |
813 | hare = SCM_CDR (exp); | |
814 | tortoise = exp; | |
2fab3faa | 815 | while (SCM_NIMP (hare) && SCM_ECONSP (hare)) |
c62fbfe1 MD |
816 | { |
817 | if (hare == tortoise) | |
818 | goto fancy_printing; | |
819 | hare = SCM_CDR (hare); | |
2fab3faa | 820 | if (SCM_IMP (hare) || SCM_NECONSP (hare)) |
c62fbfe1 MD |
821 | break; |
822 | hare = SCM_CDR (hare); | |
823 | tortoise = SCM_CDR (tortoise); | |
824 | } | |
825 | ||
826 | /* No cdr cycles intrinsic to this list */ | |
827 | scm_iprin1 (SCM_CAR (exp), port, pstate); | |
0f2d19dd JB |
828 | exp = SCM_CDR (exp); |
829 | for (; SCM_NIMP (exp); exp = SCM_CDR (exp)) | |
830 | { | |
5ca6dc39 JB |
831 | register int i; |
832 | ||
0f2d19dd JB |
833 | if (SCM_NECONSP (exp)) |
834 | break; | |
c62fbfe1 MD |
835 | for (i = floor; i >= 0; --i) |
836 | if (pstate->ref_stack[i] == exp) | |
837 | goto circref; | |
838 | PUSH_REF (pstate, exp); | |
b7f3516f | 839 | scm_putc (' ', port); |
0f2d19dd | 840 | /* CHECK_INTS; */ |
c62fbfe1 | 841 | scm_iprin1 (SCM_CAR (exp), port, pstate); |
0f2d19dd JB |
842 | } |
843 | if (SCM_NNULLP (exp)) | |
844 | { | |
b7f3516f | 845 | scm_puts (" . ", port); |
c62fbfe1 | 846 | scm_iprin1 (exp, port, pstate); |
0f2d19dd | 847 | } |
c62fbfe1 | 848 | |
a51ea417 | 849 | end: |
b7f3516f | 850 | scm_putc (tlr, port); |
c62fbfe1 | 851 | pstate->top = floor + 2; |
a51ea417 | 852 | return; |
c62fbfe1 MD |
853 | |
854 | fancy_printing: | |
855 | { | |
856 | int n = pstate->length; | |
857 | ||
858 | scm_iprin1 (SCM_CAR (exp), port, pstate); | |
859 | exp = SCM_CDR (exp); --n; | |
860 | for (; SCM_NIMP (exp); exp = SCM_CDR (exp)) | |
861 | { | |
5ca6dc39 JB |
862 | register unsigned long i; |
863 | ||
c62fbfe1 MD |
864 | if (SCM_NECONSP (exp)) |
865 | break; | |
866 | for (i = 0; i < pstate->top; ++i) | |
867 | if (pstate->ref_stack[i] == exp) | |
868 | goto fancy_circref; | |
869 | if (pstate->fancyp) | |
870 | { | |
871 | if (n == 0) | |
872 | { | |
b7f3516f | 873 | scm_puts (" ...", port); |
c62fbfe1 MD |
874 | goto skip_tail; |
875 | } | |
876 | else | |
877 | --n; | |
878 | } | |
879 | PUSH_REF(pstate, exp); | |
880 | ++pstate->list_offset; | |
b7f3516f | 881 | scm_putc (' ', port); |
c62fbfe1 MD |
882 | /* CHECK_INTS; */ |
883 | scm_iprin1 (SCM_CAR (exp), port, pstate); | |
884 | } | |
885 | } | |
886 | if (SCM_NNULLP (exp)) | |
887 | { | |
b7f3516f | 888 | scm_puts (" . ", port); |
c62fbfe1 MD |
889 | scm_iprin1 (exp, port, pstate); |
890 | } | |
891 | skip_tail: | |
892 | pstate->list_offset -= pstate->top - floor - 2; | |
a51ea417 | 893 | goto end; |
a51ea417 | 894 | |
c62fbfe1 MD |
895 | fancy_circref: |
896 | pstate->list_offset -= pstate->top - floor - 2; | |
897 | ||
898 | circref: | |
b7f3516f | 899 | scm_puts (" . ", port); |
c62fbfe1 MD |
900 | print_circref (port, pstate, exp); |
901 | goto end; | |
0f2d19dd JB |
902 | } |
903 | ||
904 | \f | |
905 | ||
bb35f315 MV |
906 | int |
907 | scm_valid_oport_value_p (SCM val) | |
908 | { | |
4bfdf158 MD |
909 | return (SCM_NIMP (val) |
910 | && (SCM_OPOUTPORTP (val) | |
c19bc088 MD |
911 | || (SCM_PORT_WITH_PS_P (val) |
912 | && SCM_OPOUTPORTP (SCM_PORT_WITH_PS_PORT (val))))); | |
bb35f315 MV |
913 | } |
914 | ||
8b840115 | 915 | /* SCM_GPROC(s_write, "write", 1, 1, 0, scm_write, g_write); */ |
1cc91f1b | 916 | |
0f2d19dd JB |
917 | SCM |
918 | scm_write (obj, port) | |
919 | SCM obj; | |
920 | SCM port; | |
0f2d19dd JB |
921 | { |
922 | if (SCM_UNBNDP (port)) | |
923 | port = scm_cur_outp; | |
3eb7e6ee JB |
924 | |
925 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG2, s_write); | |
bb35f315 | 926 | |
a51ea417 | 927 | scm_prin1 (obj, port, 1); |
0f2d19dd JB |
928 | #ifdef HAVE_PIPE |
929 | # ifdef EPIPE | |
930 | if (EPIPE == errno) | |
931 | scm_close_port (port); | |
932 | # endif | |
933 | #endif | |
934 | return SCM_UNSPECIFIED; | |
935 | } | |
936 | ||
937 | ||
8b840115 | 938 | /* SCM_GPROC(s_display, "display", 1, 1, 0, scm_display, g_display); */ |
1cc91f1b | 939 | |
0f2d19dd JB |
940 | SCM |
941 | scm_display (obj, port) | |
942 | SCM obj; | |
943 | SCM port; | |
0f2d19dd JB |
944 | { |
945 | if (SCM_UNBNDP (port)) | |
946 | port = scm_cur_outp; | |
3eb7e6ee JB |
947 | |
948 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG2, s_display); | |
bb35f315 | 949 | |
a51ea417 | 950 | scm_prin1 (obj, port, 0); |
0f2d19dd JB |
951 | #ifdef HAVE_PIPE |
952 | # ifdef EPIPE | |
953 | if (EPIPE == errno) | |
954 | scm_close_port (port); | |
955 | # endif | |
956 | #endif | |
957 | return SCM_UNSPECIFIED; | |
958 | } | |
959 | ||
960 | SCM_PROC(s_newline, "newline", 0, 1, 0, scm_newline); | |
1cc91f1b | 961 | |
0f2d19dd JB |
962 | SCM |
963 | scm_newline (port) | |
964 | SCM port; | |
0f2d19dd JB |
965 | { |
966 | if (SCM_UNBNDP (port)) | |
bb35f315 | 967 | port = scm_cur_outp; |
3eb7e6ee JB |
968 | |
969 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG1, s_newline); | |
bb35f315 | 970 | |
0ef4ae82 | 971 | scm_putc ('\n', SCM_COERCE_OUTPORT (port)); |
0f2d19dd JB |
972 | return SCM_UNSPECIFIED; |
973 | } | |
974 | ||
975 | SCM_PROC(s_write_char, "write-char", 1, 1, 0, scm_write_char); | |
1cc91f1b | 976 | |
0f2d19dd JB |
977 | SCM |
978 | scm_write_char (chr, port) | |
979 | SCM chr; | |
980 | SCM port; | |
0f2d19dd JB |
981 | { |
982 | if (SCM_UNBNDP (port)) | |
bb35f315 | 983 | port = scm_cur_outp; |
3eb7e6ee JB |
984 | |
985 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG2, s_write_char); | |
bb35f315 | 986 | |
0f2d19dd | 987 | SCM_ASSERT (SCM_ICHRP (chr), chr, SCM_ARG1, s_write_char); |
0ef4ae82 | 988 | scm_putc ((int) SCM_ICHR (chr), SCM_COERCE_OUTPORT (port)); |
0f2d19dd JB |
989 | #ifdef HAVE_PIPE |
990 | # ifdef EPIPE | |
991 | if (EPIPE == errno) | |
992 | scm_close_port (port); | |
993 | # endif | |
994 | #endif | |
995 | return SCM_UNSPECIFIED; | |
996 | } | |
997 | ||
0f2d19dd JB |
998 | \f |
999 | ||
bb35f315 | 1000 | /* Call back to Scheme code to do the printing of special objects |
c19bc088 MD |
1001 | * (like structs). SCM_PRINTER_APPLY applies PROC to EXP and a smob |
1002 | * containing PORT and PSTATE. This object can be used as the port for | |
1003 | * display/write etc to continue the current print chain. The REVEALED | |
1004 | * field of PSTATE is set to true to indicate that the print state has | |
1005 | * escaped to Scheme and thus has to be freed by the GC. | |
1006 | */ | |
1007 | ||
1008 | long scm_tc16_port_with_ps; | |
1009 | ||
1010 | /* Print exactly as the port itself would */ | |
1011 | ||
1012 | static int | |
1013 | print_port_with_ps (SCM obj, SCM port, scm_print_state *pstate) | |
1014 | { | |
1015 | obj = SCM_PORT_WITH_PS_PORT (obj); | |
1016 | return scm_ptobs[SCM_PTOBNUM (obj)].print (obj, port, pstate); | |
1017 | } | |
c4f37e80 MV |
1018 | |
1019 | SCM | |
1020 | scm_printer_apply (proc, exp, port, pstate) | |
1021 | SCM proc, exp, port; | |
1022 | scm_print_state *pstate; | |
1023 | { | |
c19bc088 | 1024 | SCM pwps; |
bb35f315 | 1025 | SCM pair = scm_cons (port, pstate->handle); |
c19bc088 | 1026 | SCM_NEWSMOB (pwps, scm_tc16_port_with_ps, pair); |
bb35f315 | 1027 | pstate->revealed = 1; |
c19bc088 MD |
1028 | return scm_apply (proc, exp, scm_cons (pwps, scm_listofnull)); |
1029 | } | |
1030 | ||
1031 | SCM_PROC (s_port_with_print_state, "port-with-print-state", 2, 0, 0, scm_port_with_print_state); | |
1032 | ||
1033 | SCM | |
1034 | scm_port_with_print_state (SCM port, SCM pstate) | |
1035 | { | |
1036 | SCM pwps; | |
1037 | SCM_ASSERT (scm_valid_oport_value_p (port), | |
1038 | port, SCM_ARG1, s_port_with_print_state); | |
1039 | SCM_ASSERT (SCM_NIMP (pstate) && SCM_PRINT_STATE_P (pstate), | |
1040 | pstate, SCM_ARG2, s_port_with_print_state); | |
1041 | port = SCM_COERCE_OUTPORT (port); | |
1042 | SCM_NEWSMOB (pwps, scm_tc16_port_with_ps, scm_cons (port, pstate)); | |
1043 | return pwps; | |
1044 | } | |
1045 | ||
1046 | SCM_PROC (s_get_print_state, "get-print-state", 1, 0, 0, scm_get_print_state); | |
1047 | ||
1048 | SCM | |
1049 | scm_get_print_state (SCM port) | |
1050 | { | |
1051 | if (SCM_NIMP (port)) | |
1052 | { | |
1053 | if (SCM_PORT_WITH_PS_P (port)) | |
1054 | return SCM_PORT_WITH_PS_PS (port); | |
1055 | if (SCM_OUTPORTP (port)) | |
1056 | return SCM_BOOL_F; | |
1057 | } | |
1058 | return scm_wta (port, (char *) SCM_ARG1, s_get_print_state); | |
c4f37e80 | 1059 | } |
bb35f315 | 1060 | |
c4f37e80 | 1061 | \f |
1cc91f1b | 1062 | |
0f2d19dd JB |
1063 | void |
1064 | scm_init_print () | |
0f2d19dd | 1065 | { |
c19bc088 | 1066 | SCM vtable, layout, type; |
4bfdf158 | 1067 | |
b7ff98dd | 1068 | scm_init_opts (scm_print_options, scm_print_opts, SCM_N_PRINT_OPTIONS); |
4bfdf158 MD |
1069 | vtable = scm_make_vtable_vtable (scm_make_struct_layout (scm_nullstr), |
1070 | SCM_INUM0, | |
1071 | SCM_EOL); | |
1072 | layout = scm_make_struct_layout (scm_makfrom0str (SCM_PRINT_STATE_LAYOUT)); | |
c19bc088 | 1073 | type = scm_make_struct (vtable, SCM_INUM0, SCM_LIST1 (layout)); |
e9cd0e47 | 1074 | scm_set_struct_vtable_name_x (type, SCM_CAR (scm_intern0 ("print-state"))); |
c62fbfe1 | 1075 | print_state_pool = scm_permanent_object (scm_cons (type, SCM_EOL)); |
c4f37e80 | 1076 | |
bb35f315 | 1077 | scm_print_state_vtable = type; |
c4f37e80 | 1078 | |
c19bc088 MD |
1079 | /* Don't want to bind a wrapper class in GOOPS, so pass 0 as arg1. */ |
1080 | scm_tc16_port_with_ps = scm_make_smob_type (0, 0); | |
1081 | scm_set_smob_mark (scm_tc16_port_with_ps, scm_markcdr); | |
1082 | scm_set_smob_print (scm_tc16_port_with_ps, print_port_with_ps); | |
1083 | ||
0f2d19dd JB |
1084 | #include "print.x" |
1085 | } |