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 JB |
594 | break; |
595 | case scm_tc7_bvect: | |
596 | case scm_tc7_byvect: | |
597 | case scm_tc7_svect: | |
598 | case scm_tc7_ivect: | |
599 | case scm_tc7_uvect: | |
600 | case scm_tc7_fvect: | |
601 | case scm_tc7_dvect: | |
602 | case scm_tc7_cvect: | |
603 | #ifdef LONGLONGS | |
604 | case scm_tc7_llvect: | |
605 | #endif | |
c62fbfe1 | 606 | scm_raprin1 (exp, port, pstate); |
0f2d19dd JB |
607 | break; |
608 | case scm_tcs_subrs: | |
9de33deb MD |
609 | scm_puts (SCM_SUBR_GENERIC (exp) && *SCM_SUBR_GENERIC (exp) |
610 | ? "#<primitive-generic " | |
611 | : "#<primitive-procedure ", | |
612 | port); | |
b7f3516f TT |
613 | scm_puts (SCM_CHARS (SCM_SNAME (exp)), port); |
614 | scm_putc ('>', port); | |
0f2d19dd JB |
615 | break; |
616 | #ifdef CCLO | |
617 | case scm_tc7_cclo: | |
56977059 MD |
618 | { |
619 | SCM proc = SCM_CCLO_SUBR (exp); | |
620 | if (proc == scm_f_gsubr_apply) | |
621 | { | |
622 | /* Print gsubrs as primitives */ | |
c180dfd3 | 623 | SCM name = scm_procedure_name (exp); |
56977059 MD |
624 | scm_puts ("#<primitive-procedure", port); |
625 | if (SCM_NFALSEP (name)) | |
626 | { | |
627 | scm_putc (' ', port); | |
628 | scm_puts (SCM_CHARS (name), port); | |
629 | } | |
630 | } | |
631 | else | |
632 | { | |
633 | scm_puts ("#<compiled-closure ", port); | |
634 | scm_iprin1 (proc, port, pstate); | |
635 | } | |
636 | scm_putc ('>', port); | |
637 | } | |
0f2d19dd JB |
638 | break; |
639 | #endif | |
c180dfd3 MD |
640 | case scm_tc7_pws: |
641 | scm_puts ("#<procedure-with-setter", port); | |
642 | { | |
643 | SCM name = scm_procedure_name (exp); | |
644 | if (SCM_NFALSEP (name)) | |
645 | { | |
646 | scm_putc (' ', port); | |
647 | scm_puts (SCM_ROCHARS (name), port); | |
648 | } | |
649 | } | |
650 | scm_putc ('>', port); | |
651 | break; | |
0f2d19dd | 652 | case scm_tc7_contin: |
b7f3516f | 653 | scm_puts ("#<continuation ", port); |
0f2d19dd | 654 | scm_intprint (SCM_LENGTH (exp), 10, port); |
b7f3516f | 655 | scm_puts (" @ ", port); |
0f2d19dd | 656 | scm_intprint ((long) SCM_CHARS (exp), 16, port); |
b7f3516f | 657 | scm_putc ('>', port); |
0f2d19dd JB |
658 | break; |
659 | case scm_tc7_port: | |
5ca6dc39 JB |
660 | { |
661 | register long i = SCM_PTOBNUM (exp); | |
662 | if (i < scm_numptob | |
663 | && scm_ptobs[i].print | |
664 | && (scm_ptobs[i].print) (exp, port, pstate)) | |
a51ea417 | 665 | break; |
5ca6dc39 JB |
666 | goto punk; |
667 | } | |
668 | case scm_tc7_smob: | |
669 | { | |
670 | register long i; | |
671 | ENTER_NESTED_DATA (pstate, exp, circref); | |
672 | i = SCM_SMOBNUM (exp); | |
673 | if (i < scm_numsmob && scm_smobs[i].print | |
674 | && (scm_smobs[i].print) (exp, port, pstate)) | |
675 | { | |
676 | EXIT_NESTED_DATA (pstate); | |
677 | break; | |
678 | } | |
679 | EXIT_NESTED_DATA (pstate); | |
680 | /* Macros have their print field set to NULL. They are | |
681 | handled at the same place as closures in order to achieve | |
682 | non-redundancy. Placing the condition here won't slow | |
683 | down printing of other smobs. */ | |
684 | if (SCM_TYP16 (exp) == scm_tc16_macro) | |
685 | goto macros; | |
686 | } | |
0f2d19dd | 687 | default: |
a51ea417 MD |
688 | punk: |
689 | scm_ipruk ("type", exp, port); | |
0f2d19dd JB |
690 | } |
691 | } | |
692 | } | |
693 | ||
c62fbfe1 MD |
694 | /* Print states are necessary for circular reference safe printing. |
695 | * They are also expensive to allocate. Therefore print states are | |
696 | * kept in a pool so that they can be reused. | |
697 | */ | |
1cc91f1b | 698 | |
bb35f315 MV |
699 | /* The PORT argument can also be a print-state/port pair, which will |
700 | * then be used instead of allocating a new print state. This is | |
701 | * useful for continuing a chain of print calls from Scheme. */ | |
702 | ||
a51ea417 | 703 | void |
c62fbfe1 | 704 | scm_prin1 (exp, port, writingp) |
a51ea417 MD |
705 | SCM exp; |
706 | SCM port; | |
c62fbfe1 | 707 | int writingp; |
a51ea417 | 708 | { |
c4f37e80 MV |
709 | SCM handle = SCM_BOOL_F; /* Will GC protect the handle whilst unlinked */ |
710 | SCM pstate_scm; | |
c62fbfe1 MD |
711 | scm_print_state *pstate; |
712 | ||
bb35f315 MV |
713 | /* If PORT is a print-state/port pair, use that. Else create a new |
714 | print-state. */ | |
c4f37e80 | 715 | |
52235e71 | 716 | if (SCM_NIMP (port) && SCM_PORT_WITH_PS_P (port)) |
bb35f315 | 717 | { |
52235e71 MD |
718 | pstate_scm = SCM_PORT_WITH_PS_PS (port); |
719 | port = SCM_PORT_WITH_PS_PORT (port); | |
bb35f315 MV |
720 | } |
721 | else | |
c62fbfe1 | 722 | { |
c4f37e80 MV |
723 | /* First try to allocate a print state from the pool */ |
724 | SCM_DEFER_INTS; | |
725 | if (SCM_NNULLP (SCM_CDR (print_state_pool))) | |
726 | { | |
727 | handle = SCM_CDR (print_state_pool); | |
728 | SCM_SETCDR (print_state_pool, SCM_CDDR (print_state_pool)); | |
729 | } | |
730 | SCM_ALLOW_INTS; | |
731 | if (handle == SCM_BOOL_F) | |
732 | handle = scm_cons (make_print_state (), SCM_EOL); | |
733 | pstate_scm = SCM_CAR (handle); | |
c62fbfe1 | 734 | } |
c62fbfe1 | 735 | |
c4f37e80 | 736 | pstate = SCM_PRINT_STATE (pstate_scm); |
c62fbfe1 MD |
737 | pstate->writingp = writingp; |
738 | scm_iprin1 (exp, port, pstate); | |
739 | ||
bb35f315 MV |
740 | /* Return print state to pool if it has been created above and |
741 | hasn't escaped to Scheme. */ | |
742 | ||
743 | if (handle != SCM_BOOL_F && !pstate->revealed) | |
c4f37e80 MV |
744 | { |
745 | SCM_DEFER_INTS; | |
746 | SCM_SETCDR (handle, SCM_CDR (print_state_pool)); | |
747 | SCM_SETCDR (print_state_pool, handle); | |
748 | SCM_ALLOW_INTS; | |
749 | } | |
a51ea417 MD |
750 | } |
751 | ||
0f2d19dd JB |
752 | |
753 | /* Print an integer. | |
754 | */ | |
1cc91f1b | 755 | |
0f2d19dd JB |
756 | void |
757 | scm_intprint (n, radix, port) | |
758 | long n; | |
759 | int radix; | |
760 | SCM port; | |
0f2d19dd JB |
761 | { |
762 | char num_buf[SCM_INTBUFLEN]; | |
b7f3516f | 763 | scm_lfwrite (num_buf, scm_iint2str (n, radix, num_buf), port); |
0f2d19dd JB |
764 | } |
765 | ||
766 | /* Print an object of unrecognized type. | |
767 | */ | |
1cc91f1b | 768 | |
0f2d19dd JB |
769 | void |
770 | scm_ipruk (hdr, ptr, port) | |
771 | char *hdr; | |
772 | SCM ptr; | |
773 | SCM port; | |
0f2d19dd | 774 | { |
b7f3516f TT |
775 | scm_puts ("#<unknown-", port); |
776 | scm_puts (hdr, port); | |
0f2d19dd JB |
777 | if (SCM_CELLP (ptr)) |
778 | { | |
b7f3516f | 779 | scm_puts (" (0x", port); |
0f2d19dd | 780 | scm_intprint (SCM_CAR (ptr), 16, port); |
b7f3516f | 781 | scm_puts (" . 0x", port); |
0f2d19dd | 782 | scm_intprint (SCM_CDR (ptr), 16, port); |
b7f3516f | 783 | scm_puts (") @", port); |
0f2d19dd | 784 | } |
b7f3516f | 785 | scm_puts (" 0x", port); |
0f2d19dd | 786 | scm_intprint (ptr, 16, port); |
b7f3516f | 787 | scm_putc ('>', port); |
0f2d19dd JB |
788 | } |
789 | ||
790 | /* Print a list. | |
791 | */ | |
a51ea417 | 792 | |
1cc91f1b | 793 | |
0f2d19dd | 794 | void |
c62fbfe1 | 795 | scm_iprlist (hdr, exp, tlr, port, pstate) |
0f2d19dd JB |
796 | char *hdr; |
797 | SCM exp; | |
805df3e8 | 798 | int tlr; |
0f2d19dd | 799 | SCM port; |
c62fbfe1 | 800 | scm_print_state *pstate; |
0f2d19dd | 801 | { |
c62fbfe1 MD |
802 | register SCM hare, tortoise; |
803 | int floor = pstate->top - 2; | |
b7f3516f | 804 | scm_puts (hdr, port); |
0f2d19dd | 805 | /* CHECK_INTS; */ |
c62fbfe1 MD |
806 | if (pstate->fancyp) |
807 | goto fancy_printing; | |
808 | ||
809 | /* Run a hare and tortoise so that total time complexity will be | |
810 | O(depth * N) instead of O(N^2). */ | |
811 | hare = SCM_CDR (exp); | |
812 | tortoise = exp; | |
2fab3faa | 813 | while (SCM_NIMP (hare) && SCM_ECONSP (hare)) |
c62fbfe1 MD |
814 | { |
815 | if (hare == tortoise) | |
816 | goto fancy_printing; | |
817 | hare = SCM_CDR (hare); | |
2fab3faa | 818 | if (SCM_IMP (hare) || SCM_NECONSP (hare)) |
c62fbfe1 MD |
819 | break; |
820 | hare = SCM_CDR (hare); | |
821 | tortoise = SCM_CDR (tortoise); | |
822 | } | |
823 | ||
824 | /* No cdr cycles intrinsic to this list */ | |
825 | scm_iprin1 (SCM_CAR (exp), port, pstate); | |
0f2d19dd JB |
826 | exp = SCM_CDR (exp); |
827 | for (; SCM_NIMP (exp); exp = SCM_CDR (exp)) | |
828 | { | |
5ca6dc39 JB |
829 | register int i; |
830 | ||
0f2d19dd JB |
831 | if (SCM_NECONSP (exp)) |
832 | break; | |
c62fbfe1 MD |
833 | for (i = floor; i >= 0; --i) |
834 | if (pstate->ref_stack[i] == exp) | |
835 | goto circref; | |
836 | PUSH_REF (pstate, exp); | |
b7f3516f | 837 | scm_putc (' ', port); |
0f2d19dd | 838 | /* CHECK_INTS; */ |
c62fbfe1 | 839 | scm_iprin1 (SCM_CAR (exp), port, pstate); |
0f2d19dd JB |
840 | } |
841 | if (SCM_NNULLP (exp)) | |
842 | { | |
b7f3516f | 843 | scm_puts (" . ", port); |
c62fbfe1 | 844 | scm_iprin1 (exp, port, pstate); |
0f2d19dd | 845 | } |
c62fbfe1 | 846 | |
a51ea417 | 847 | end: |
b7f3516f | 848 | scm_putc (tlr, port); |
c62fbfe1 | 849 | pstate->top = floor + 2; |
a51ea417 | 850 | return; |
c62fbfe1 MD |
851 | |
852 | fancy_printing: | |
853 | { | |
854 | int n = pstate->length; | |
855 | ||
856 | scm_iprin1 (SCM_CAR (exp), port, pstate); | |
857 | exp = SCM_CDR (exp); --n; | |
858 | for (; SCM_NIMP (exp); exp = SCM_CDR (exp)) | |
859 | { | |
5ca6dc39 JB |
860 | register unsigned long i; |
861 | ||
c62fbfe1 MD |
862 | if (SCM_NECONSP (exp)) |
863 | break; | |
864 | for (i = 0; i < pstate->top; ++i) | |
865 | if (pstate->ref_stack[i] == exp) | |
866 | goto fancy_circref; | |
867 | if (pstate->fancyp) | |
868 | { | |
869 | if (n == 0) | |
870 | { | |
b7f3516f | 871 | scm_puts (" ...", port); |
c62fbfe1 MD |
872 | goto skip_tail; |
873 | } | |
874 | else | |
875 | --n; | |
876 | } | |
877 | PUSH_REF(pstate, exp); | |
878 | ++pstate->list_offset; | |
b7f3516f | 879 | scm_putc (' ', port); |
c62fbfe1 MD |
880 | /* CHECK_INTS; */ |
881 | scm_iprin1 (SCM_CAR (exp), port, pstate); | |
882 | } | |
883 | } | |
884 | if (SCM_NNULLP (exp)) | |
885 | { | |
b7f3516f | 886 | scm_puts (" . ", port); |
c62fbfe1 MD |
887 | scm_iprin1 (exp, port, pstate); |
888 | } | |
889 | skip_tail: | |
890 | pstate->list_offset -= pstate->top - floor - 2; | |
a51ea417 | 891 | goto end; |
a51ea417 | 892 | |
c62fbfe1 MD |
893 | fancy_circref: |
894 | pstate->list_offset -= pstate->top - floor - 2; | |
895 | ||
896 | circref: | |
b7f3516f | 897 | scm_puts (" . ", port); |
c62fbfe1 MD |
898 | print_circref (port, pstate, exp); |
899 | goto end; | |
0f2d19dd JB |
900 | } |
901 | ||
902 | \f | |
903 | ||
bb35f315 MV |
904 | int |
905 | scm_valid_oport_value_p (SCM val) | |
906 | { | |
4bfdf158 MD |
907 | return (SCM_NIMP (val) |
908 | && (SCM_OPOUTPORTP (val) | |
c19bc088 MD |
909 | || (SCM_PORT_WITH_PS_P (val) |
910 | && SCM_OPOUTPORTP (SCM_PORT_WITH_PS_PORT (val))))); | |
bb35f315 MV |
911 | } |
912 | ||
8b840115 | 913 | /* SCM_GPROC(s_write, "write", 1, 1, 0, scm_write, g_write); */ |
1cc91f1b | 914 | |
0f2d19dd JB |
915 | SCM |
916 | scm_write (obj, port) | |
917 | SCM obj; | |
918 | SCM port; | |
0f2d19dd JB |
919 | { |
920 | if (SCM_UNBNDP (port)) | |
921 | port = scm_cur_outp; | |
3eb7e6ee JB |
922 | |
923 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG2, s_write); | |
bb35f315 | 924 | |
a51ea417 | 925 | scm_prin1 (obj, port, 1); |
0f2d19dd JB |
926 | #ifdef HAVE_PIPE |
927 | # ifdef EPIPE | |
928 | if (EPIPE == errno) | |
929 | scm_close_port (port); | |
930 | # endif | |
931 | #endif | |
932 | return SCM_UNSPECIFIED; | |
933 | } | |
934 | ||
935 | ||
8b840115 | 936 | /* SCM_GPROC(s_display, "display", 1, 1, 0, scm_display, g_display); */ |
1cc91f1b | 937 | |
0f2d19dd JB |
938 | SCM |
939 | scm_display (obj, port) | |
940 | SCM obj; | |
941 | SCM port; | |
0f2d19dd JB |
942 | { |
943 | if (SCM_UNBNDP (port)) | |
944 | port = scm_cur_outp; | |
3eb7e6ee JB |
945 | |
946 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG2, s_display); | |
bb35f315 | 947 | |
a51ea417 | 948 | scm_prin1 (obj, port, 0); |
0f2d19dd JB |
949 | #ifdef HAVE_PIPE |
950 | # ifdef EPIPE | |
951 | if (EPIPE == errno) | |
952 | scm_close_port (port); | |
953 | # endif | |
954 | #endif | |
955 | return SCM_UNSPECIFIED; | |
956 | } | |
957 | ||
958 | SCM_PROC(s_newline, "newline", 0, 1, 0, scm_newline); | |
1cc91f1b | 959 | |
0f2d19dd JB |
960 | SCM |
961 | scm_newline (port) | |
962 | SCM port; | |
0f2d19dd JB |
963 | { |
964 | if (SCM_UNBNDP (port)) | |
bb35f315 | 965 | port = scm_cur_outp; |
3eb7e6ee JB |
966 | |
967 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG1, s_newline); | |
bb35f315 | 968 | |
0ef4ae82 | 969 | scm_putc ('\n', SCM_COERCE_OUTPORT (port)); |
0f2d19dd JB |
970 | return SCM_UNSPECIFIED; |
971 | } | |
972 | ||
973 | SCM_PROC(s_write_char, "write-char", 1, 1, 0, scm_write_char); | |
1cc91f1b | 974 | |
0f2d19dd JB |
975 | SCM |
976 | scm_write_char (chr, port) | |
977 | SCM chr; | |
978 | SCM port; | |
0f2d19dd JB |
979 | { |
980 | if (SCM_UNBNDP (port)) | |
bb35f315 | 981 | port = scm_cur_outp; |
3eb7e6ee JB |
982 | |
983 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG2, s_write_char); | |
bb35f315 | 984 | |
0f2d19dd | 985 | SCM_ASSERT (SCM_ICHRP (chr), chr, SCM_ARG1, s_write_char); |
0ef4ae82 | 986 | scm_putc ((int) SCM_ICHR (chr), SCM_COERCE_OUTPORT (port)); |
0f2d19dd JB |
987 | #ifdef HAVE_PIPE |
988 | # ifdef EPIPE | |
989 | if (EPIPE == errno) | |
990 | scm_close_port (port); | |
991 | # endif | |
992 | #endif | |
993 | return SCM_UNSPECIFIED; | |
994 | } | |
995 | ||
0f2d19dd JB |
996 | \f |
997 | ||
bb35f315 | 998 | /* Call back to Scheme code to do the printing of special objects |
c19bc088 MD |
999 | * (like structs). SCM_PRINTER_APPLY applies PROC to EXP and a smob |
1000 | * containing PORT and PSTATE. This object can be used as the port for | |
1001 | * display/write etc to continue the current print chain. The REVEALED | |
1002 | * field of PSTATE is set to true to indicate that the print state has | |
1003 | * escaped to Scheme and thus has to be freed by the GC. | |
1004 | */ | |
1005 | ||
1006 | long scm_tc16_port_with_ps; | |
1007 | ||
1008 | /* Print exactly as the port itself would */ | |
1009 | ||
1010 | static int | |
1011 | print_port_with_ps (SCM obj, SCM port, scm_print_state *pstate) | |
1012 | { | |
1013 | obj = SCM_PORT_WITH_PS_PORT (obj); | |
1014 | return scm_ptobs[SCM_PTOBNUM (obj)].print (obj, port, pstate); | |
1015 | } | |
c4f37e80 MV |
1016 | |
1017 | SCM | |
1018 | scm_printer_apply (proc, exp, port, pstate) | |
1019 | SCM proc, exp, port; | |
1020 | scm_print_state *pstate; | |
1021 | { | |
c19bc088 | 1022 | SCM pwps; |
bb35f315 | 1023 | SCM pair = scm_cons (port, pstate->handle); |
c19bc088 | 1024 | SCM_NEWSMOB (pwps, scm_tc16_port_with_ps, pair); |
bb35f315 | 1025 | pstate->revealed = 1; |
c19bc088 MD |
1026 | return scm_apply (proc, exp, scm_cons (pwps, scm_listofnull)); |
1027 | } | |
1028 | ||
1029 | SCM_PROC (s_port_with_print_state, "port-with-print-state", 2, 0, 0, scm_port_with_print_state); | |
1030 | ||
1031 | SCM | |
1032 | scm_port_with_print_state (SCM port, SCM pstate) | |
1033 | { | |
1034 | SCM pwps; | |
1035 | SCM_ASSERT (scm_valid_oport_value_p (port), | |
1036 | port, SCM_ARG1, s_port_with_print_state); | |
1037 | SCM_ASSERT (SCM_NIMP (pstate) && SCM_PRINT_STATE_P (pstate), | |
1038 | pstate, SCM_ARG2, s_port_with_print_state); | |
1039 | port = SCM_COERCE_OUTPORT (port); | |
1040 | SCM_NEWSMOB (pwps, scm_tc16_port_with_ps, scm_cons (port, pstate)); | |
1041 | return pwps; | |
1042 | } | |
1043 | ||
1044 | SCM_PROC (s_get_print_state, "get-print-state", 1, 0, 0, scm_get_print_state); | |
1045 | ||
1046 | SCM | |
1047 | scm_get_print_state (SCM port) | |
1048 | { | |
1049 | if (SCM_NIMP (port)) | |
1050 | { | |
1051 | if (SCM_PORT_WITH_PS_P (port)) | |
1052 | return SCM_PORT_WITH_PS_PS (port); | |
1053 | if (SCM_OUTPORTP (port)) | |
1054 | return SCM_BOOL_F; | |
1055 | } | |
1056 | return scm_wta (port, (char *) SCM_ARG1, s_get_print_state); | |
c4f37e80 | 1057 | } |
bb35f315 | 1058 | |
c4f37e80 | 1059 | \f |
1cc91f1b | 1060 | |
0f2d19dd JB |
1061 | void |
1062 | scm_init_print () | |
0f2d19dd | 1063 | { |
c19bc088 | 1064 | SCM vtable, layout, type; |
4bfdf158 | 1065 | |
b7ff98dd | 1066 | scm_init_opts (scm_print_options, scm_print_opts, SCM_N_PRINT_OPTIONS); |
4bfdf158 MD |
1067 | vtable = scm_make_vtable_vtable (scm_make_struct_layout (scm_nullstr), |
1068 | SCM_INUM0, | |
1069 | SCM_EOL); | |
1070 | layout = scm_make_struct_layout (scm_makfrom0str (SCM_PRINT_STATE_LAYOUT)); | |
c19bc088 | 1071 | type = scm_make_struct (vtable, SCM_INUM0, SCM_LIST1 (layout)); |
e9cd0e47 | 1072 | scm_set_struct_vtable_name_x (type, SCM_CAR (scm_intern0 ("print-state"))); |
c62fbfe1 | 1073 | print_state_pool = scm_permanent_object (scm_cons (type, SCM_EOL)); |
c4f37e80 | 1074 | |
bb35f315 | 1075 | scm_print_state_vtable = type; |
c4f37e80 | 1076 | |
c19bc088 MD |
1077 | /* Don't want to bind a wrapper class in GOOPS, so pass 0 as arg1. */ |
1078 | scm_tc16_port_with_ps = scm_make_smob_type (0, 0); | |
1079 | scm_set_smob_mark (scm_tc16_port_with_ps, scm_markcdr); | |
1080 | scm_set_smob_print (scm_tc16_port_with_ps, print_port_with_ps); | |
1081 | ||
0f2d19dd JB |
1082 | #include "print.x" |
1083 | } |