Commit | Line | Data |
---|---|---|
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. */ |
1bbd0b84 GB |
41 | |
42 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, | |
43 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
44 | ||
0f2d19dd JB |
45 | \f |
46 | ||
47 | #include <stdio.h> | |
48 | #include "_scm.h" | |
20e6290e JB |
49 | #include "chars.h" |
50 | #include "genio.h" | |
20e6290e JB |
51 | #include "smob.h" |
52 | #include "eval.h" | |
ddeae7ca | 53 | #include "macros.h" |
20e6290e JB |
54 | #include "procprop.h" |
55 | #include "read.h" | |
56 | #include "weaks.h" | |
57 | #include "unif.h" | |
dbef8851 | 58 | #include "alist.h" |
c62fbfe1 | 59 | #include "struct.h" |
8b840115 | 60 | #include "objects.h" |
0f2d19dd | 61 | |
1bbd0b84 | 62 | #include "scm_validate.h" |
20e6290e | 63 | #include "print.h" |
0f2d19dd JB |
64 | \f |
65 | ||
66 | /* {Names of immediate symbols} | |
67 | * | |
68 | * This table must agree with the declarations in scm.h: {Immediate Symbols}. | |
69 | */ | |
70 | ||
71 | char *scm_isymnames[] = | |
72 | { | |
73 | /* This table must agree with the declarations */ | |
74 | "#@and", | |
75 | "#@begin", | |
76 | "#@case", | |
77 | "#@cond", | |
78 | "#@do", | |
79 | "#@if", | |
80 | "#@lambda", | |
81 | "#@let", | |
82 | "#@let*", | |
83 | "#@letrec", | |
84 | "#@or", | |
85 | "#@quote", | |
86 | "#@set!", | |
87 | "#@define", | |
88 | #if 0 | |
89 | "#@literal-variable-ref", | |
90 | "#@literal-variable-set!", | |
91 | #endif | |
92 | "#@apply", | |
93 | "#@call-with-current-continuation", | |
94 | ||
95 | /* user visible ISYMS */ | |
96 | /* other keywords */ | |
97 | /* Flags */ | |
98 | ||
99 | "#f", | |
100 | "#t", | |
101 | "#<undefined>", | |
102 | "#<eof>", | |
103 | "()", | |
4df91bd6 MD |
104 | "#<unspecified>", |
105 | "#@dispatch", | |
43c667e9 MD |
106 | "#@slot-ref", |
107 | "#@slot-set!", | |
159500fb | 108 | |
159500fb MD |
109 | /* Multi-language support */ |
110 | ||
111 | "#@nil-cond", | |
112 | "#@nil-ify", | |
113 | "#@t-ify", | |
114 | "#@0-cond", | |
115 | "#@0-ify", | |
116 | "#@1-ify", | |
ccd0e478 MD |
117 | "#@bind", |
118 | ||
5623a9b4 MD |
119 | "#@delay", |
120 | ||
121 | "#<unbound>" | |
0f2d19dd JB |
122 | }; |
123 | ||
e6e4c9af | 124 | scm_option scm_print_opts[] = { |
b7ff98dd | 125 | { SCM_OPTION_SCM, "closure-hook", SCM_BOOL_F, |
84f6a34a MD |
126 | "Hook for printing closures." }, |
127 | { SCM_OPTION_BOOLEAN, "source", 0, | |
128 | "Print closures with source." } | |
e6e4c9af MD |
129 | }; |
130 | ||
a1ec6916 | 131 | SCM_DEFINE (scm_print_options, "print-options-interface", 0, 1, 0, |
1bbd0b84 GB |
132 | (SCM setting), |
133 | "") | |
134 | #define FUNC_NAME s_scm_print_options | |
e6e4c9af | 135 | { |
a51ea417 | 136 | SCM ans = scm_options (setting, |
b7ff98dd MD |
137 | scm_print_opts, |
138 | SCM_N_PRINT_OPTIONS, | |
1bbd0b84 | 139 | FUNC_NAME); |
e6e4c9af MD |
140 | return ans; |
141 | } | |
1bbd0b84 | 142 | #undef FUNC_NAME |
e6e4c9af | 143 | |
0f2d19dd JB |
144 | \f |
145 | /* {Printing of Scheme Objects} | |
146 | */ | |
147 | ||
a51ea417 | 148 | /* Detection of circular references. |
c62fbfe1 MD |
149 | * |
150 | * Due to other constraints in the implementation, this code has bad | |
151 | * time complexity (O (depth * N)), The printer code will be | |
152 | * completely rewritten before next release of Guile. The new code | |
153 | * will be O(N). | |
a51ea417 | 154 | */ |
c62fbfe1 | 155 | #define PUSH_REF(pstate, obj) \ |
1bbd0b84 | 156 | do { \ |
c62fbfe1 MD |
157 | pstate->ref_stack[pstate->top++] = (obj); \ |
158 | if (pstate->top == pstate->ceiling) \ | |
159 | grow_ref_stack (pstate); \ | |
1bbd0b84 | 160 | } while(0) |
a51ea417 | 161 | |
c62fbfe1 | 162 | #define ENTER_NESTED_DATA(pstate, obj, label) \ |
1bbd0b84 | 163 | do { \ |
5ca6dc39 | 164 | register unsigned long i; \ |
c62fbfe1 MD |
165 | for (i = 0; i < pstate->top; ++i) \ |
166 | if (pstate->ref_stack[i] == (obj)) \ | |
167 | goto label; \ | |
168 | if (pstate->fancyp) \ | |
169 | { \ | |
170 | if (pstate->top - pstate->list_offset >= pstate->level) \ | |
171 | { \ | |
b7f3516f | 172 | scm_putc ('#', port); \ |
c62fbfe1 MD |
173 | return; \ |
174 | } \ | |
175 | } \ | |
176 | PUSH_REF(pstate, obj); \ | |
1bbd0b84 | 177 | } while(0) |
a51ea417 | 178 | |
c62fbfe1 MD |
179 | #define EXIT_NESTED_DATA(pstate) { --pstate->top; } |
180 | ||
bb35f315 | 181 | SCM scm_print_state_vtable; |
c4f37e80 | 182 | |
bb35f315 | 183 | static SCM print_state_pool; |
c4f37e80 | 184 | |
f843a84c | 185 | #ifdef GUILE_DEBUG /* Used for debugging purposes */ |
1cc91f1b | 186 | |
3b3b36dd | 187 | SCM_DEFINE (scm_current_pstate, "current-pstate", 0, 0, 0, |
1bbd0b84 | 188 | (), |
717050c8 | 189 | "") |
1bbd0b84 | 190 | #define FUNC_NAME s_scm_current_pstate |
c62fbfe1 MD |
191 | { |
192 | return SCM_CADR (print_state_pool); | |
193 | } | |
1bbd0b84 GB |
194 | #undef FUNC_NAME |
195 | ||
c62fbfe1 MD |
196 | #endif |
197 | ||
198 | #define PSTATE_SIZE 50L | |
199 | ||
698c0295 | 200 | static SCM |
1bbd0b84 | 201 | make_print_state (void) |
698c0295 MD |
202 | { |
203 | SCM print_state = scm_make_struct (SCM_CAR (print_state_pool), /* pstate type */ | |
bf685b6d | 204 | SCM_INUM0, |
698c0295 | 205 | SCM_EOL); |
bf685b6d MD |
206 | scm_print_state *pstate = SCM_PRINT_STATE (print_state); |
207 | pstate->ref_vect = scm_make_vector (SCM_MAKINUM (PSTATE_SIZE), | |
bf685b6d MD |
208 | SCM_UNDEFINED); |
209 | pstate->ref_stack = SCM_VELTS (pstate->ref_vect); | |
210 | pstate->ceiling = SCM_LENGTH (pstate->ref_vect); | |
698c0295 MD |
211 | return print_state; |
212 | } | |
1cc91f1b | 213 | |
c62fbfe1 MD |
214 | SCM |
215 | scm_make_print_state () | |
c62fbfe1 | 216 | { |
698c0295 MD |
217 | SCM answer = 0; |
218 | ||
219 | /* First try to allocate a print state from the pool */ | |
220 | SCM_DEFER_INTS; | |
221 | if (SCM_NNULLP (SCM_CDR (print_state_pool))) | |
222 | { | |
223 | answer = SCM_CADR (print_state_pool); | |
224 | SCM_SETCDR (print_state_pool, SCM_CDDR (print_state_pool)); | |
225 | } | |
226 | SCM_ALLOW_INTS; | |
227 | ||
228 | return answer ? answer : make_print_state (); | |
c62fbfe1 | 229 | } |
a51ea417 | 230 | |
698c0295 | 231 | void |
6e8d25a6 | 232 | scm_free_print_state (SCM print_state) |
698c0295 MD |
233 | { |
234 | SCM handle; | |
235 | scm_print_state *pstate = SCM_PRINT_STATE (print_state); | |
236 | /* Cleanup before returning print state to pool. | |
237 | * It is better to do it here. Doing it in scm_prin1 | |
238 | * would cost more since that function is called much more | |
239 | * often. | |
240 | */ | |
241 | pstate->fancyp = 0; | |
bb35f315 | 242 | pstate->revealed = 0; |
698c0295 MD |
243 | SCM_NEWCELL (handle); |
244 | SCM_DEFER_INTS; | |
245 | SCM_SETCAR (handle, print_state); | |
246 | SCM_SETCDR (handle, SCM_CDR (print_state_pool)); | |
247 | SCM_SETCDR (print_state_pool, handle); | |
248 | SCM_ALLOW_INTS; | |
249 | } | |
1cc91f1b | 250 | |
a51ea417 | 251 | static void |
1bbd0b84 | 252 | grow_ref_stack (scm_print_state *pstate) |
a51ea417 | 253 | { |
bf685b6d MD |
254 | int new_size = 2 * pstate->ceiling; |
255 | scm_vector_set_length_x (pstate->ref_vect, SCM_MAKINUM (new_size)); | |
256 | pstate->ref_stack = SCM_VELTS (pstate->ref_vect); | |
257 | pstate->ceiling = new_size; | |
a51ea417 MD |
258 | } |
259 | ||
1cc91f1b | 260 | |
a51ea417 | 261 | static void |
1bbd0b84 | 262 | print_circref (SCM port,scm_print_state *pstate,SCM ref) |
a51ea417 | 263 | { |
c62fbfe1 MD |
264 | register int i; |
265 | int self = pstate->top - 1; | |
266 | i = pstate->top - 1; | |
267 | if (SCM_CONSP (pstate->ref_stack[i])) | |
268 | { | |
269 | while (i > 0) | |
270 | { | |
271 | if (SCM_NCONSP (pstate->ref_stack[i - 1]) | |
272 | || SCM_CDR (pstate->ref_stack[i - 1]) != pstate->ref_stack[i]) | |
273 | break; | |
274 | --i; | |
275 | } | |
276 | self = i; | |
277 | } | |
278 | for (i = pstate->top - 1; 1; --i) | |
279 | if (pstate->ref_stack[i] == ref) | |
280 | break; | |
b7f3516f | 281 | scm_putc ('#', port); |
c62fbfe1 | 282 | scm_intprint (i - self, 10, port); |
b7f3516f | 283 | scm_putc ('#', port); |
a51ea417 MD |
284 | } |
285 | ||
c62fbfe1 | 286 | /* Print generally. Handles both write and display according to PSTATE. |
0f2d19dd | 287 | */ |
8b840115 MD |
288 | SCM_GPROC(s_write, "write", 1, 1, 0, scm_write, g_write); |
289 | SCM_GPROC(s_display, "display", 1, 1, 0, scm_display, g_display); | |
1cc91f1b | 290 | |
0f2d19dd | 291 | void |
1bbd0b84 | 292 | scm_iprin1 (SCM exp, SCM port, scm_print_state *pstate) |
0f2d19dd | 293 | { |
0f2d19dd JB |
294 | taloop: |
295 | switch (7 & (int) exp) | |
296 | { | |
297 | case 2: | |
298 | case 6: | |
299 | scm_intprint (SCM_INUM (exp), 10, port); | |
300 | break; | |
301 | case 4: | |
302 | if (SCM_ICHRP (exp)) | |
303 | { | |
5ca6dc39 JB |
304 | register long i; |
305 | ||
0f2d19dd | 306 | i = SCM_ICHR (exp); |
b7f3516f TT |
307 | if (SCM_WRITINGP (pstate)) |
308 | { | |
309 | scm_puts ("#\\", port); | |
310 | if ((i >= 0) && (i <= ' ') && scm_charnames[i]) | |
311 | scm_puts (scm_charnames[i], port); | |
312 | else if (i < 0 || i > '\177') | |
313 | scm_intprint (i, 8, port); | |
314 | else | |
315 | scm_putc (i, port); | |
316 | } | |
317 | else | |
318 | scm_putc (i, port); | |
0f2d19dd | 319 | } |
a51ea417 | 320 | else if (SCM_IFLAGP (exp) |
5ca6dc39 | 321 | && ((size_t) SCM_ISYMNUM (exp) < (sizeof scm_isymnames / sizeof (char *)))) |
b7f3516f | 322 | scm_puts (SCM_ISYMCHARS (exp), port); |
0f2d19dd JB |
323 | else if (SCM_ILOCP (exp)) |
324 | { | |
b7f3516f | 325 | scm_puts ("#@", port); |
0f2d19dd | 326 | scm_intprint ((long) SCM_IFRAME (exp), 10, port); |
b7f3516f | 327 | scm_putc (SCM_ICDRP (exp) ? '-' : '+', port); |
0f2d19dd JB |
328 | scm_intprint ((long) SCM_IDIST (exp), 10, port); |
329 | } | |
330 | else | |
331 | goto idef; | |
332 | break; | |
333 | case 1: | |
334 | /* gloc */ | |
b7f3516f | 335 | scm_puts ("#@", port); |
0f2d19dd JB |
336 | exp = SCM_CAR (exp - 1); |
337 | goto taloop; | |
338 | default: | |
339 | idef: | |
340 | scm_ipruk ("immediate", exp, port); | |
341 | break; | |
342 | case 0: | |
343 | switch (SCM_TYP7 (exp)) | |
344 | { | |
345 | case scm_tcs_cons_gloc: | |
346 | ||
347 | if (SCM_CDR (SCM_CAR (exp) - 1L) == 0) | |
348 | { | |
c4f37e80 | 349 | ENTER_NESTED_DATA (pstate, exp, circref); |
8b840115 MD |
350 | if (SCM_OBJ_CLASS_FLAGS (exp) & SCM_CLASSF_GOOPS) |
351 | { | |
352 | SCM pwps, print = pstate->writingp ? g_write : g_display; | |
353 | if (!print) | |
354 | goto print_struct; | |
355 | SCM_NEWSMOB (pwps, | |
356 | scm_tc16_port_with_ps, | |
357 | scm_cons (port, pstate->handle)); | |
358 | scm_call_generic_2 (print, exp, pwps); | |
359 | } | |
360 | else | |
361 | { | |
362 | print_struct: | |
363 | scm_print_struct (exp, port, pstate); | |
364 | } | |
c4f37e80 | 365 | EXIT_NESTED_DATA (pstate); |
0f2d19dd JB |
366 | break; |
367 | } | |
368 | ||
369 | case scm_tcs_cons_imcar: | |
370 | case scm_tcs_cons_nimcar: | |
c62fbfe1 MD |
371 | ENTER_NESTED_DATA (pstate, exp, circref); |
372 | scm_iprlist ("(", exp, ')', port, pstate); | |
373 | EXIT_NESTED_DATA (pstate); | |
a51ea417 MD |
374 | break; |
375 | circref: | |
c62fbfe1 | 376 | print_circref (port, pstate, exp); |
0f2d19dd | 377 | break; |
7332df66 | 378 | macros: |
80ea260c | 379 | if (!SCM_CLOSUREP (SCM_CDR (exp))) |
7332df66 | 380 | goto prinmacro; |
0f2d19dd | 381 | case scm_tcs_closures: |
7332df66 MD |
382 | /* The user supplied print closure procedure must handle |
383 | macro closures as well. */ | |
bb35f315 MV |
384 | if (SCM_FALSEP (scm_procedure_p (SCM_PRINT_CLOSURE)) |
385 | || SCM_FALSEP (scm_printer_apply (SCM_PRINT_CLOSURE, | |
77c25af7 | 386 | exp, port, pstate))) |
bb35f315 | 387 | { |
ba031394 | 388 | SCM name, code, env; |
bb35f315 MV |
389 | if (SCM_TYP16 (exp) == scm_tc16_macro) |
390 | { | |
391 | /* Printing a macro. */ | |
392 | prinmacro: | |
393 | name = scm_macro_name (exp); | |
394 | if (!SCM_CLOSUREP (SCM_CDR (exp))) | |
395 | { | |
f44dd64b | 396 | code = env = 0; |
b7f3516f | 397 | scm_puts ("#<primitive-", port); |
bb35f315 MV |
398 | } |
399 | else | |
400 | { | |
401 | code = SCM_CODE (SCM_CDR (exp)); | |
ba031394 | 402 | env = SCM_ENV (SCM_CDR (exp)); |
b7f3516f | 403 | scm_puts ("#<", port); |
bb35f315 MV |
404 | } |
405 | if (SCM_CAR (exp) & (3L << 16)) | |
b7f3516f | 406 | scm_puts ("macro", port); |
bb35f315 | 407 | else |
b7f3516f | 408 | scm_puts ("syntax", port); |
bb35f315 | 409 | if (SCM_CAR (exp) & (2L << 16)) |
b7f3516f | 410 | scm_putc ('!', port); |
bb35f315 MV |
411 | } |
412 | else | |
413 | { | |
414 | /* Printing a closure. */ | |
415 | name = scm_procedure_name (exp); | |
416 | code = SCM_CODE (exp); | |
ba031394 | 417 | env = SCM_ENV (exp); |
b7f3516f | 418 | scm_puts ("#<procedure", port); |
bb35f315 | 419 | } |
0c95b57d | 420 | if (SCM_ROSTRINGP (name)) |
bb35f315 | 421 | { |
b7f3516f TT |
422 | scm_putc (' ', port); |
423 | scm_puts (SCM_ROCHARS (name), port); | |
bb35f315 MV |
424 | } |
425 | if (code) | |
426 | { | |
ba031394 MD |
427 | if (SCM_PRINT_SOURCE_P) |
428 | { | |
429 | code = scm_unmemocopy (code, | |
430 | SCM_EXTEND_ENV (SCM_CAR (code), | |
431 | SCM_EOL, | |
432 | env)); | |
433 | ENTER_NESTED_DATA (pstate, exp, circref); | |
434 | scm_iprlist (" ", code, '>', port, pstate); | |
435 | EXIT_NESTED_DATA (pstate); | |
436 | } | |
437 | else | |
438 | { | |
439 | if (SCM_TYP16 (exp) != scm_tc16_macro) | |
440 | { | |
b7f3516f | 441 | scm_putc (' ', port); |
ba031394 MD |
442 | scm_iprin1 (SCM_CAR (code), port, pstate); |
443 | } | |
b7f3516f | 444 | scm_putc ('>', port); |
ba031394 | 445 | } |
bb35f315 MV |
446 | } |
447 | else | |
b7f3516f | 448 | scm_putc ('>', port); |
bb35f315 | 449 | } |
0f2d19dd | 450 | break; |
0f2d19dd JB |
451 | case scm_tc7_substring: |
452 | case scm_tc7_string: | |
c62fbfe1 | 453 | if (SCM_WRITINGP (pstate)) |
0f2d19dd | 454 | { |
5ca6dc39 JB |
455 | scm_sizet i; |
456 | ||
b7f3516f | 457 | scm_putc ('"', port); |
0f2d19dd JB |
458 | for (i = 0; i < SCM_ROLENGTH (exp); ++i) |
459 | switch (SCM_ROCHARS (exp)[i]) | |
460 | { | |
dbef8851 | 461 | case '"': |
0f2d19dd | 462 | case '\\': |
b7f3516f | 463 | scm_putc ('\\', port); |
0f2d19dd | 464 | default: |
b7f3516f | 465 | scm_putc (SCM_ROCHARS (exp)[i], port); |
0f2d19dd | 466 | } |
b7f3516f | 467 | scm_putc ('"', port); |
0f2d19dd JB |
468 | break; |
469 | } | |
470 | else | |
b7f3516f TT |
471 | scm_lfwrite (SCM_ROCHARS (exp), (scm_sizet) SCM_ROLENGTH (exp), |
472 | port); | |
0f2d19dd JB |
473 | break; |
474 | case scm_tcs_symbols: | |
0f2d19dd JB |
475 | { |
476 | int pos; | |
477 | int end; | |
478 | int len; | |
479 | char * str; | |
480 | int weird; | |
481 | int maybe_weird; | |
4dc2435a | 482 | int mw_pos = 0; |
0f2d19dd JB |
483 | |
484 | len = SCM_LENGTH (exp); | |
485 | str = SCM_CHARS (exp); | |
486 | scm_remember (&exp); | |
487 | pos = 0; | |
488 | weird = 0; | |
489 | maybe_weird = 0; | |
490 | ||
491 | if (len == 0) | |
b7f3516f | 492 | scm_lfwrite ("#{}#", 4, port); |
0f2d19dd JB |
493 | |
494 | for (end = pos; end < len; ++end) | |
495 | switch (str[end]) | |
496 | { | |
497 | #ifdef BRACKETS_AS_PARENS | |
498 | case '[': | |
499 | case ']': | |
500 | #endif | |
501 | case '(': | |
502 | case ')': | |
dbef8851 | 503 | case '"': |
0f2d19dd JB |
504 | case ';': |
505 | case SCM_WHITE_SPACES: | |
506 | case SCM_LINE_INCREMENTORS: | |
507 | weird_handler: | |
508 | if (maybe_weird) | |
509 | { | |
510 | end = mw_pos; | |
511 | maybe_weird = 0; | |
512 | } | |
513 | if (!weird) | |
514 | { | |
b7f3516f | 515 | scm_lfwrite ("#{", 2, port); |
0f2d19dd JB |
516 | weird = 1; |
517 | } | |
518 | if (pos < end) | |
519 | { | |
b7f3516f | 520 | scm_lfwrite (str + pos, end - pos, port); |
0f2d19dd JB |
521 | } |
522 | { | |
523 | char buf[2]; | |
524 | buf[0] = '\\'; | |
525 | buf[1] = str[end]; | |
b7f3516f | 526 | scm_lfwrite (buf, 2, port); |
0f2d19dd JB |
527 | } |
528 | pos = end + 1; | |
529 | break; | |
530 | case '\\': | |
531 | if (weird) | |
532 | goto weird_handler; | |
533 | if (!maybe_weird) | |
534 | { | |
535 | maybe_weird = 1; | |
536 | mw_pos = pos; | |
537 | } | |
538 | break; | |
539 | case '}': | |
540 | case '#': | |
541 | if (weird) | |
542 | goto weird_handler; | |
543 | break; | |
544 | default: | |
545 | break; | |
546 | } | |
547 | if (pos < end) | |
b7f3516f | 548 | scm_lfwrite (str + pos, end - pos, port); |
0f2d19dd | 549 | if (weird) |
b7f3516f | 550 | scm_lfwrite ("}#", 2, port); |
0f2d19dd JB |
551 | break; |
552 | } | |
553 | case scm_tc7_wvect: | |
c62fbfe1 | 554 | ENTER_NESTED_DATA (pstate, exp, circref); |
0f2d19dd | 555 | if (SCM_IS_WHVEC (exp)) |
b7f3516f | 556 | scm_puts ("#wh(", port); |
0f2d19dd | 557 | else |
b7f3516f | 558 | scm_puts ("#w(", port); |
0f2d19dd JB |
559 | goto common_vector_printer; |
560 | ||
561 | case scm_tc7_vector: | |
c62fbfe1 | 562 | ENTER_NESTED_DATA (pstate, exp, circref); |
b7f3516f | 563 | scm_puts ("#(", port); |
0f2d19dd | 564 | common_vector_printer: |
9fbaf27c | 565 | { |
5ca6dc39 | 566 | register long i; |
9fbaf27c MD |
567 | int last = SCM_LENGTH (exp) - 1; |
568 | int cutp = 0; | |
569 | if (pstate->fancyp && SCM_LENGTH (exp) > pstate->length) | |
570 | { | |
571 | last = pstate->length - 1; | |
572 | cutp = 1; | |
573 | } | |
574 | for (i = 0; i < last; ++i) | |
575 | { | |
576 | /* CHECK_INTS; */ | |
577 | scm_iprin1 (SCM_VELTS (exp)[i], port, pstate); | |
b7f3516f | 578 | scm_putc (' ', port); |
9fbaf27c MD |
579 | } |
580 | if (i == last) | |
581 | { | |
582 | /* CHECK_INTS; */ | |
583 | scm_iprin1 (SCM_VELTS (exp)[i], port, pstate); | |
584 | } | |
585 | if (cutp) | |
b7f3516f TT |
586 | scm_puts (" ...", port); |
587 | scm_putc (')', port); | |
9fbaf27c | 588 | } |
c62fbfe1 | 589 | EXIT_NESTED_DATA (pstate); |
0f2d19dd | 590 | break; |
afe5177e | 591 | #ifdef HAVE_ARRAYS |
0f2d19dd JB |
592 | case scm_tc7_bvect: |
593 | case scm_tc7_byvect: | |
594 | case scm_tc7_svect: | |
595 | case scm_tc7_ivect: | |
596 | case scm_tc7_uvect: | |
597 | case scm_tc7_fvect: | |
598 | case scm_tc7_dvect: | |
599 | case scm_tc7_cvect: | |
5c11cc9d | 600 | #ifdef HAVE_LONG_LONGS |
0f2d19dd JB |
601 | case scm_tc7_llvect: |
602 | #endif | |
c62fbfe1 | 603 | scm_raprin1 (exp, port, pstate); |
0f2d19dd | 604 | break; |
afe5177e | 605 | #endif |
0f2d19dd | 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 |
1bbd0b84 | 702 | scm_prin1 (SCM exp, SCM port, int writingp) |
a51ea417 | 703 | { |
c4f37e80 MV |
704 | SCM handle = SCM_BOOL_F; /* Will GC protect the handle whilst unlinked */ |
705 | SCM pstate_scm; | |
c62fbfe1 MD |
706 | scm_print_state *pstate; |
707 | ||
bb35f315 MV |
708 | /* If PORT is a print-state/port pair, use that. Else create a new |
709 | print-state. */ | |
c4f37e80 | 710 | |
0c95b57d | 711 | if (SCM_PORT_WITH_PS_P (port)) |
bb35f315 | 712 | { |
52235e71 MD |
713 | pstate_scm = SCM_PORT_WITH_PS_PS (port); |
714 | port = SCM_PORT_WITH_PS_PORT (port); | |
bb35f315 MV |
715 | } |
716 | else | |
c62fbfe1 | 717 | { |
c4f37e80 MV |
718 | /* First try to allocate a print state from the pool */ |
719 | SCM_DEFER_INTS; | |
720 | if (SCM_NNULLP (SCM_CDR (print_state_pool))) | |
721 | { | |
722 | handle = SCM_CDR (print_state_pool); | |
723 | SCM_SETCDR (print_state_pool, SCM_CDDR (print_state_pool)); | |
724 | } | |
725 | SCM_ALLOW_INTS; | |
726 | if (handle == SCM_BOOL_F) | |
727 | handle = scm_cons (make_print_state (), SCM_EOL); | |
728 | pstate_scm = SCM_CAR (handle); | |
c62fbfe1 | 729 | } |
c62fbfe1 | 730 | |
c4f37e80 | 731 | pstate = SCM_PRINT_STATE (pstate_scm); |
c62fbfe1 MD |
732 | pstate->writingp = writingp; |
733 | scm_iprin1 (exp, port, pstate); | |
734 | ||
bb35f315 MV |
735 | /* Return print state to pool if it has been created above and |
736 | hasn't escaped to Scheme. */ | |
737 | ||
738 | if (handle != SCM_BOOL_F && !pstate->revealed) | |
c4f37e80 MV |
739 | { |
740 | SCM_DEFER_INTS; | |
741 | SCM_SETCDR (handle, SCM_CDR (print_state_pool)); | |
742 | SCM_SETCDR (print_state_pool, handle); | |
743 | SCM_ALLOW_INTS; | |
744 | } | |
a51ea417 MD |
745 | } |
746 | ||
0f2d19dd JB |
747 | |
748 | /* Print an integer. | |
749 | */ | |
1cc91f1b | 750 | |
0f2d19dd | 751 | void |
1bbd0b84 | 752 | scm_intprint (long n, int radix, SCM port) |
0f2d19dd JB |
753 | { |
754 | char num_buf[SCM_INTBUFLEN]; | |
b7f3516f | 755 | scm_lfwrite (num_buf, scm_iint2str (n, radix, num_buf), port); |
0f2d19dd JB |
756 | } |
757 | ||
758 | /* Print an object of unrecognized type. | |
759 | */ | |
1cc91f1b | 760 | |
0f2d19dd | 761 | void |
1bbd0b84 | 762 | scm_ipruk (char *hdr, SCM ptr, SCM port) |
0f2d19dd | 763 | { |
b7f3516f TT |
764 | scm_puts ("#<unknown-", port); |
765 | scm_puts (hdr, port); | |
0f2d19dd JB |
766 | if (SCM_CELLP (ptr)) |
767 | { | |
b7f3516f | 768 | scm_puts (" (0x", port); |
0f2d19dd | 769 | scm_intprint (SCM_CAR (ptr), 16, port); |
b7f3516f | 770 | scm_puts (" . 0x", port); |
0f2d19dd | 771 | scm_intprint (SCM_CDR (ptr), 16, port); |
b7f3516f | 772 | scm_puts (") @", port); |
0f2d19dd | 773 | } |
b7f3516f | 774 | scm_puts (" 0x", port); |
0f2d19dd | 775 | scm_intprint (ptr, 16, port); |
b7f3516f | 776 | scm_putc ('>', port); |
0f2d19dd JB |
777 | } |
778 | ||
779 | /* Print a list. | |
780 | */ | |
a51ea417 | 781 | |
1cc91f1b | 782 | |
0f2d19dd | 783 | void |
1bbd0b84 | 784 | scm_iprlist (char *hdr,SCM exp,int tlr,SCM port,scm_print_state *pstate) |
0f2d19dd | 785 | { |
c62fbfe1 MD |
786 | register SCM hare, tortoise; |
787 | int floor = pstate->top - 2; | |
b7f3516f | 788 | scm_puts (hdr, port); |
0f2d19dd | 789 | /* CHECK_INTS; */ |
c62fbfe1 MD |
790 | if (pstate->fancyp) |
791 | goto fancy_printing; | |
792 | ||
793 | /* Run a hare and tortoise so that total time complexity will be | |
794 | O(depth * N) instead of O(N^2). */ | |
795 | hare = SCM_CDR (exp); | |
796 | tortoise = exp; | |
0c95b57d | 797 | while (SCM_ECONSP (hare)) |
c62fbfe1 MD |
798 | { |
799 | if (hare == tortoise) | |
800 | goto fancy_printing; | |
801 | hare = SCM_CDR (hare); | |
2fab3faa | 802 | if (SCM_IMP (hare) || SCM_NECONSP (hare)) |
c62fbfe1 MD |
803 | break; |
804 | hare = SCM_CDR (hare); | |
805 | tortoise = SCM_CDR (tortoise); | |
806 | } | |
807 | ||
808 | /* No cdr cycles intrinsic to this list */ | |
809 | scm_iprin1 (SCM_CAR (exp), port, pstate); | |
0f2d19dd JB |
810 | exp = SCM_CDR (exp); |
811 | for (; SCM_NIMP (exp); exp = SCM_CDR (exp)) | |
812 | { | |
5ca6dc39 JB |
813 | register int i; |
814 | ||
0f2d19dd JB |
815 | if (SCM_NECONSP (exp)) |
816 | break; | |
c62fbfe1 MD |
817 | for (i = floor; i >= 0; --i) |
818 | if (pstate->ref_stack[i] == exp) | |
819 | goto circref; | |
820 | PUSH_REF (pstate, exp); | |
b7f3516f | 821 | scm_putc (' ', port); |
0f2d19dd | 822 | /* CHECK_INTS; */ |
c62fbfe1 | 823 | scm_iprin1 (SCM_CAR (exp), port, pstate); |
0f2d19dd JB |
824 | } |
825 | if (SCM_NNULLP (exp)) | |
826 | { | |
b7f3516f | 827 | scm_puts (" . ", port); |
c62fbfe1 | 828 | scm_iprin1 (exp, port, pstate); |
0f2d19dd | 829 | } |
c62fbfe1 | 830 | |
a51ea417 | 831 | end: |
b7f3516f | 832 | scm_putc (tlr, port); |
c62fbfe1 | 833 | pstate->top = floor + 2; |
a51ea417 | 834 | return; |
c62fbfe1 MD |
835 | |
836 | fancy_printing: | |
837 | { | |
838 | int n = pstate->length; | |
839 | ||
840 | scm_iprin1 (SCM_CAR (exp), port, pstate); | |
841 | exp = SCM_CDR (exp); --n; | |
842 | for (; SCM_NIMP (exp); exp = SCM_CDR (exp)) | |
843 | { | |
5ca6dc39 JB |
844 | register unsigned long i; |
845 | ||
c62fbfe1 MD |
846 | if (SCM_NECONSP (exp)) |
847 | break; | |
848 | for (i = 0; i < pstate->top; ++i) | |
849 | if (pstate->ref_stack[i] == exp) | |
850 | goto fancy_circref; | |
851 | if (pstate->fancyp) | |
852 | { | |
853 | if (n == 0) | |
854 | { | |
b7f3516f | 855 | scm_puts (" ...", port); |
c62fbfe1 MD |
856 | goto skip_tail; |
857 | } | |
858 | else | |
859 | --n; | |
860 | } | |
861 | PUSH_REF(pstate, exp); | |
862 | ++pstate->list_offset; | |
b7f3516f | 863 | scm_putc (' ', port); |
c62fbfe1 MD |
864 | /* CHECK_INTS; */ |
865 | scm_iprin1 (SCM_CAR (exp), port, pstate); | |
866 | } | |
867 | } | |
868 | if (SCM_NNULLP (exp)) | |
869 | { | |
b7f3516f | 870 | scm_puts (" . ", port); |
c62fbfe1 MD |
871 | scm_iprin1 (exp, port, pstate); |
872 | } | |
873 | skip_tail: | |
874 | pstate->list_offset -= pstate->top - floor - 2; | |
a51ea417 | 875 | goto end; |
a51ea417 | 876 | |
c62fbfe1 MD |
877 | fancy_circref: |
878 | pstate->list_offset -= pstate->top - floor - 2; | |
879 | ||
880 | circref: | |
b7f3516f | 881 | scm_puts (" . ", port); |
c62fbfe1 MD |
882 | print_circref (port, pstate, exp); |
883 | goto end; | |
0f2d19dd JB |
884 | } |
885 | ||
886 | \f | |
887 | ||
bb35f315 MV |
888 | int |
889 | scm_valid_oport_value_p (SCM val) | |
890 | { | |
368cf54d GB |
891 | return (SCM_OPOUTPORTP (val) |
892 | || (SCM_PORT_WITH_PS_P (val) | |
893 | && SCM_OPOUTPORTP (SCM_PORT_WITH_PS_PORT (val)))); | |
bb35f315 MV |
894 | } |
895 | ||
8b840115 | 896 | /* SCM_GPROC(s_write, "write", 1, 1, 0, scm_write, g_write); */ |
1cc91f1b | 897 | |
0f2d19dd | 898 | SCM |
1bbd0b84 | 899 | scm_write (SCM obj, SCM port) |
0f2d19dd JB |
900 | { |
901 | if (SCM_UNBNDP (port)) | |
902 | port = scm_cur_outp; | |
3eb7e6ee JB |
903 | |
904 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG2, s_write); | |
bb35f315 | 905 | |
a51ea417 | 906 | scm_prin1 (obj, port, 1); |
0f2d19dd JB |
907 | #ifdef HAVE_PIPE |
908 | # ifdef EPIPE | |
909 | if (EPIPE == errno) | |
910 | scm_close_port (port); | |
911 | # endif | |
912 | #endif | |
913 | return SCM_UNSPECIFIED; | |
914 | } | |
915 | ||
916 | ||
8b840115 | 917 | /* SCM_GPROC(s_display, "display", 1, 1, 0, scm_display, g_display); */ |
1cc91f1b | 918 | |
0f2d19dd | 919 | SCM |
1bbd0b84 | 920 | scm_display (SCM obj, 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_display); | |
bb35f315 | 926 | |
a51ea417 | 927 | scm_prin1 (obj, port, 0); |
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 | ||
3b3b36dd | 937 | SCM_DEFINE (scm_newline, "newline", 0, 1, 0, |
1bbd0b84 GB |
938 | (SCM port), |
939 | "") | |
940 | #define FUNC_NAME s_scm_newline | |
0f2d19dd JB |
941 | { |
942 | if (SCM_UNBNDP (port)) | |
bb35f315 | 943 | port = scm_cur_outp; |
3eb7e6ee | 944 | |
3b3b36dd | 945 | SCM_VALIDATE_OPORT_VALUE (1,port); |
bb35f315 | 946 | |
0ef4ae82 | 947 | scm_putc ('\n', SCM_COERCE_OUTPORT (port)); |
0f2d19dd JB |
948 | return SCM_UNSPECIFIED; |
949 | } | |
1bbd0b84 | 950 | #undef FUNC_NAME |
0f2d19dd | 951 | |
3b3b36dd | 952 | SCM_DEFINE (scm_write_char, "write-char", 1, 1, 0, |
1bbd0b84 GB |
953 | (SCM chr, SCM port), |
954 | "") | |
955 | #define FUNC_NAME s_scm_write_char | |
0f2d19dd JB |
956 | { |
957 | if (SCM_UNBNDP (port)) | |
bb35f315 | 958 | port = scm_cur_outp; |
3eb7e6ee | 959 | |
3b3b36dd GB |
960 | SCM_VALIDATE_CHAR (1,chr); |
961 | SCM_VALIDATE_OPORT_VALUE (2,port); | |
bb35f315 | 962 | |
0ef4ae82 | 963 | scm_putc ((int) SCM_ICHR (chr), SCM_COERCE_OUTPORT (port)); |
0f2d19dd JB |
964 | #ifdef HAVE_PIPE |
965 | # ifdef EPIPE | |
966 | if (EPIPE == errno) | |
967 | scm_close_port (port); | |
968 | # endif | |
969 | #endif | |
970 | return SCM_UNSPECIFIED; | |
971 | } | |
1bbd0b84 | 972 | #undef FUNC_NAME |
0f2d19dd | 973 | |
0f2d19dd JB |
974 | \f |
975 | ||
bb35f315 | 976 | /* Call back to Scheme code to do the printing of special objects |
c19bc088 MD |
977 | * (like structs). SCM_PRINTER_APPLY applies PROC to EXP and a smob |
978 | * containing PORT and PSTATE. This object can be used as the port for | |
979 | * display/write etc to continue the current print chain. The REVEALED | |
980 | * field of PSTATE is set to true to indicate that the print state has | |
981 | * escaped to Scheme and thus has to be freed by the GC. | |
982 | */ | |
983 | ||
984 | long scm_tc16_port_with_ps; | |
985 | ||
986 | /* Print exactly as the port itself would */ | |
987 | ||
988 | static int | |
989 | print_port_with_ps (SCM obj, SCM port, scm_print_state *pstate) | |
990 | { | |
991 | obj = SCM_PORT_WITH_PS_PORT (obj); | |
992 | return scm_ptobs[SCM_PTOBNUM (obj)].print (obj, port, pstate); | |
993 | } | |
c4f37e80 MV |
994 | |
995 | SCM | |
1bbd0b84 | 996 | scm_printer_apply (SCM proc, SCM exp, SCM port, scm_print_state *pstate) |
c4f37e80 | 997 | { |
c19bc088 | 998 | SCM pwps; |
bb35f315 | 999 | SCM pair = scm_cons (port, pstate->handle); |
c19bc088 | 1000 | SCM_NEWSMOB (pwps, scm_tc16_port_with_ps, pair); |
bb35f315 | 1001 | pstate->revealed = 1; |
c19bc088 MD |
1002 | return scm_apply (proc, exp, scm_cons (pwps, scm_listofnull)); |
1003 | } | |
1004 | ||
a1ec6916 | 1005 | SCM_DEFINE (scm_port_with_print_state, "port-with-print-state", 2, 0, 0, |
1bbd0b84 GB |
1006 | (SCM port, SCM pstate), |
1007 | "") | |
1008 | #define FUNC_NAME s_scm_port_with_print_state | |
c19bc088 MD |
1009 | { |
1010 | SCM pwps; | |
3b3b36dd GB |
1011 | SCM_VALIDATE_OPORT_VALUE (1,port); |
1012 | SCM_VALIDATE_PRINTSTATE (2,pstate); | |
c19bc088 MD |
1013 | port = SCM_COERCE_OUTPORT (port); |
1014 | SCM_NEWSMOB (pwps, scm_tc16_port_with_ps, scm_cons (port, pstate)); | |
1015 | return pwps; | |
1016 | } | |
1bbd0b84 | 1017 | #undef FUNC_NAME |
c19bc088 | 1018 | |
a1ec6916 | 1019 | SCM_DEFINE (scm_get_print_state, "get-print-state", 1, 0, 0, |
1bbd0b84 GB |
1020 | (SCM port), |
1021 | "") | |
1022 | #define FUNC_NAME s_scm_get_print_state | |
c19bc088 | 1023 | { |
368cf54d GB |
1024 | if (SCM_PORT_WITH_PS_P (port)) |
1025 | return SCM_PORT_WITH_PS_PS (port); | |
1026 | if (SCM_OUTPORTP (port)) | |
1027 | return SCM_BOOL_F; | |
1bbd0b84 | 1028 | RETURN_SCM_WTA (1,port); |
c4f37e80 | 1029 | } |
1bbd0b84 | 1030 | #undef FUNC_NAME |
bb35f315 | 1031 | |
c4f37e80 | 1032 | \f |
1cc91f1b | 1033 | |
0f2d19dd JB |
1034 | void |
1035 | scm_init_print () | |
0f2d19dd | 1036 | { |
c19bc088 | 1037 | SCM vtable, layout, type; |
4bfdf158 | 1038 | |
b7ff98dd | 1039 | scm_init_opts (scm_print_options, scm_print_opts, SCM_N_PRINT_OPTIONS); |
4bfdf158 MD |
1040 | vtable = scm_make_vtable_vtable (scm_make_struct_layout (scm_nullstr), |
1041 | SCM_INUM0, | |
1042 | SCM_EOL); | |
1043 | layout = scm_make_struct_layout (scm_makfrom0str (SCM_PRINT_STATE_LAYOUT)); | |
c19bc088 | 1044 | type = scm_make_struct (vtable, SCM_INUM0, SCM_LIST1 (layout)); |
e9cd0e47 | 1045 | scm_set_struct_vtable_name_x (type, SCM_CAR (scm_intern0 ("print-state"))); |
c62fbfe1 | 1046 | print_state_pool = scm_permanent_object (scm_cons (type, SCM_EOL)); |
c4f37e80 | 1047 | |
bb35f315 | 1048 | scm_print_state_vtable = type; |
c4f37e80 | 1049 | |
c19bc088 MD |
1050 | /* Don't want to bind a wrapper class in GOOPS, so pass 0 as arg1. */ |
1051 | scm_tc16_port_with_ps = scm_make_smob_type (0, 0); | |
1052 | scm_set_smob_mark (scm_tc16_port_with_ps, scm_markcdr); | |
1053 | scm_set_smob_print (scm_tc16_port_with_ps, print_port_with_ps); | |
1054 | ||
0f2d19dd JB |
1055 | #include "print.x" |
1056 | } |