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