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. */ |
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 | ||
119 | "#@delay" | |
0f2d19dd JB |
120 | }; |
121 | ||
e6e4c9af | 122 | scm_option scm_print_opts[] = { |
b7ff98dd | 123 | { SCM_OPTION_SCM, "closure-hook", SCM_BOOL_F, |
84f6a34a MD |
124 | "Hook for printing closures." }, |
125 | { SCM_OPTION_BOOLEAN, "source", 0, | |
126 | "Print closures with source." } | |
e6e4c9af MD |
127 | }; |
128 | ||
1bbd0b84 GB |
129 | GUILE_PROC (scm_print_options, "print-options-interface", 0, 1, 0, |
130 | (SCM setting), | |
131 | "") | |
132 | #define FUNC_NAME s_scm_print_options | |
e6e4c9af | 133 | { |
a51ea417 | 134 | SCM ans = scm_options (setting, |
b7ff98dd MD |
135 | scm_print_opts, |
136 | SCM_N_PRINT_OPTIONS, | |
1bbd0b84 | 137 | FUNC_NAME); |
e6e4c9af MD |
138 | return ans; |
139 | } | |
1bbd0b84 | 140 | #undef FUNC_NAME |
e6e4c9af | 141 | |
0f2d19dd JB |
142 | \f |
143 | /* {Printing of Scheme Objects} | |
144 | */ | |
145 | ||
a51ea417 | 146 | /* Detection of circular references. |
c62fbfe1 MD |
147 | * |
148 | * Due to other constraints in the implementation, this code has bad | |
149 | * time complexity (O (depth * N)), The printer code will be | |
150 | * completely rewritten before next release of Guile. The new code | |
151 | * will be O(N). | |
a51ea417 | 152 | */ |
c62fbfe1 | 153 | #define PUSH_REF(pstate, obj) \ |
1bbd0b84 | 154 | do { \ |
c62fbfe1 MD |
155 | pstate->ref_stack[pstate->top++] = (obj); \ |
156 | if (pstate->top == pstate->ceiling) \ | |
157 | grow_ref_stack (pstate); \ | |
1bbd0b84 | 158 | } while(0) |
a51ea417 | 159 | |
c62fbfe1 | 160 | #define ENTER_NESTED_DATA(pstate, obj, label) \ |
1bbd0b84 | 161 | do { \ |
5ca6dc39 | 162 | register unsigned long i; \ |
c62fbfe1 MD |
163 | for (i = 0; i < pstate->top; ++i) \ |
164 | if (pstate->ref_stack[i] == (obj)) \ | |
165 | goto label; \ | |
166 | if (pstate->fancyp) \ | |
167 | { \ | |
168 | if (pstate->top - pstate->list_offset >= pstate->level) \ | |
169 | { \ | |
b7f3516f | 170 | scm_putc ('#', port); \ |
c62fbfe1 MD |
171 | return; \ |
172 | } \ | |
173 | } \ | |
174 | PUSH_REF(pstate, obj); \ | |
1bbd0b84 | 175 | } while(0) |
a51ea417 | 176 | |
c62fbfe1 MD |
177 | #define EXIT_NESTED_DATA(pstate) { --pstate->top; } |
178 | ||
bb35f315 | 179 | SCM scm_print_state_vtable; |
c4f37e80 | 180 | |
bb35f315 | 181 | static SCM print_state_pool; |
c4f37e80 | 182 | |
f843a84c | 183 | #ifdef GUILE_DEBUG /* Used for debugging purposes */ |
1cc91f1b | 184 | |
1bbd0b84 GB |
185 | GUILE_PROC(scm_current_pstate, "current-pstate", 0, 0, 0, |
186 | (), | |
717050c8 | 187 | "") |
1bbd0b84 | 188 | #define FUNC_NAME s_scm_current_pstate |
c62fbfe1 MD |
189 | { |
190 | return SCM_CADR (print_state_pool); | |
191 | } | |
1bbd0b84 GB |
192 | #undef FUNC_NAME |
193 | ||
c62fbfe1 MD |
194 | #endif |
195 | ||
196 | #define PSTATE_SIZE 50L | |
197 | ||
698c0295 | 198 | static SCM |
1bbd0b84 | 199 | make_print_state (void) |
698c0295 MD |
200 | { |
201 | SCM print_state = scm_make_struct (SCM_CAR (print_state_pool), /* pstate type */ | |
bf685b6d | 202 | SCM_INUM0, |
698c0295 | 203 | SCM_EOL); |
bf685b6d MD |
204 | scm_print_state *pstate = SCM_PRINT_STATE (print_state); |
205 | pstate->ref_vect = scm_make_vector (SCM_MAKINUM (PSTATE_SIZE), | |
bf685b6d MD |
206 | SCM_UNDEFINED); |
207 | pstate->ref_stack = SCM_VELTS (pstate->ref_vect); | |
208 | pstate->ceiling = SCM_LENGTH (pstate->ref_vect); | |
698c0295 MD |
209 | return print_state; |
210 | } | |
1cc91f1b | 211 | |
c62fbfe1 MD |
212 | SCM |
213 | scm_make_print_state () | |
c62fbfe1 | 214 | { |
698c0295 MD |
215 | SCM answer = 0; |
216 | ||
217 | /* First try to allocate a print state from the pool */ | |
218 | SCM_DEFER_INTS; | |
219 | if (SCM_NNULLP (SCM_CDR (print_state_pool))) | |
220 | { | |
221 | answer = SCM_CADR (print_state_pool); | |
222 | SCM_SETCDR (print_state_pool, SCM_CDDR (print_state_pool)); | |
223 | } | |
224 | SCM_ALLOW_INTS; | |
225 | ||
226 | return answer ? answer : make_print_state (); | |
c62fbfe1 | 227 | } |
a51ea417 | 228 | |
698c0295 | 229 | void |
6e8d25a6 | 230 | scm_free_print_state (SCM print_state) |
698c0295 MD |
231 | { |
232 | SCM handle; | |
233 | scm_print_state *pstate = SCM_PRINT_STATE (print_state); | |
234 | /* Cleanup before returning print state to pool. | |
235 | * It is better to do it here. Doing it in scm_prin1 | |
236 | * would cost more since that function is called much more | |
237 | * often. | |
238 | */ | |
239 | pstate->fancyp = 0; | |
bb35f315 | 240 | pstate->revealed = 0; |
698c0295 MD |
241 | SCM_NEWCELL (handle); |
242 | SCM_DEFER_INTS; | |
243 | SCM_SETCAR (handle, print_state); | |
244 | SCM_SETCDR (handle, SCM_CDR (print_state_pool)); | |
245 | SCM_SETCDR (print_state_pool, handle); | |
246 | SCM_ALLOW_INTS; | |
247 | } | |
1cc91f1b | 248 | |
a51ea417 | 249 | static void |
1bbd0b84 | 250 | grow_ref_stack (scm_print_state *pstate) |
a51ea417 | 251 | { |
bf685b6d MD |
252 | int new_size = 2 * pstate->ceiling; |
253 | scm_vector_set_length_x (pstate->ref_vect, SCM_MAKINUM (new_size)); | |
254 | pstate->ref_stack = SCM_VELTS (pstate->ref_vect); | |
255 | pstate->ceiling = new_size; | |
a51ea417 MD |
256 | } |
257 | ||
1cc91f1b | 258 | |
a51ea417 | 259 | static void |
1bbd0b84 | 260 | print_circref (SCM port,scm_print_state *pstate,SCM ref) |
a51ea417 | 261 | { |
c62fbfe1 MD |
262 | register int i; |
263 | int self = pstate->top - 1; | |
264 | i = pstate->top - 1; | |
265 | if (SCM_CONSP (pstate->ref_stack[i])) | |
266 | { | |
267 | while (i > 0) | |
268 | { | |
269 | if (SCM_NCONSP (pstate->ref_stack[i - 1]) | |
270 | || SCM_CDR (pstate->ref_stack[i - 1]) != pstate->ref_stack[i]) | |
271 | break; | |
272 | --i; | |
273 | } | |
274 | self = i; | |
275 | } | |
276 | for (i = pstate->top - 1; 1; --i) | |
277 | if (pstate->ref_stack[i] == ref) | |
278 | break; | |
b7f3516f | 279 | scm_putc ('#', port); |
c62fbfe1 | 280 | scm_intprint (i - self, 10, port); |
b7f3516f | 281 | scm_putc ('#', port); |
a51ea417 MD |
282 | } |
283 | ||
c62fbfe1 | 284 | /* Print generally. Handles both write and display according to PSTATE. |
0f2d19dd | 285 | */ |
8b840115 MD |
286 | SCM_GPROC(s_write, "write", 1, 1, 0, scm_write, g_write); |
287 | SCM_GPROC(s_display, "display", 1, 1, 0, scm_display, g_display); | |
1cc91f1b | 288 | |
0f2d19dd | 289 | void |
1bbd0b84 | 290 | scm_iprin1 (SCM exp, SCM port, scm_print_state *pstate) |
0f2d19dd | 291 | { |
0f2d19dd JB |
292 | taloop: |
293 | switch (7 & (int) exp) | |
294 | { | |
295 | case 2: | |
296 | case 6: | |
297 | scm_intprint (SCM_INUM (exp), 10, port); | |
298 | break; | |
299 | case 4: | |
300 | if (SCM_ICHRP (exp)) | |
301 | { | |
5ca6dc39 JB |
302 | register long i; |
303 | ||
0f2d19dd | 304 | i = SCM_ICHR (exp); |
b7f3516f TT |
305 | if (SCM_WRITINGP (pstate)) |
306 | { | |
307 | scm_puts ("#\\", port); | |
308 | if ((i >= 0) && (i <= ' ') && scm_charnames[i]) | |
309 | scm_puts (scm_charnames[i], port); | |
310 | else if (i < 0 || i > '\177') | |
311 | scm_intprint (i, 8, port); | |
312 | else | |
313 | scm_putc (i, port); | |
314 | } | |
315 | else | |
316 | scm_putc (i, port); | |
0f2d19dd | 317 | } |
a51ea417 | 318 | else if (SCM_IFLAGP (exp) |
5ca6dc39 | 319 | && ((size_t) SCM_ISYMNUM (exp) < (sizeof scm_isymnames / sizeof (char *)))) |
b7f3516f | 320 | scm_puts (SCM_ISYMCHARS (exp), port); |
0f2d19dd JB |
321 | else if (SCM_ILOCP (exp)) |
322 | { | |
b7f3516f | 323 | scm_puts ("#@", port); |
0f2d19dd | 324 | scm_intprint ((long) SCM_IFRAME (exp), 10, port); |
b7f3516f | 325 | scm_putc (SCM_ICDRP (exp) ? '-' : '+', port); |
0f2d19dd JB |
326 | scm_intprint ((long) SCM_IDIST (exp), 10, port); |
327 | } | |
328 | else | |
329 | goto idef; | |
330 | break; | |
331 | case 1: | |
332 | /* gloc */ | |
b7f3516f | 333 | scm_puts ("#@", port); |
0f2d19dd JB |
334 | exp = SCM_CAR (exp - 1); |
335 | goto taloop; | |
336 | default: | |
337 | idef: | |
338 | scm_ipruk ("immediate", exp, port); | |
339 | break; | |
340 | case 0: | |
341 | switch (SCM_TYP7 (exp)) | |
342 | { | |
343 | case scm_tcs_cons_gloc: | |
344 | ||
345 | if (SCM_CDR (SCM_CAR (exp) - 1L) == 0) | |
346 | { | |
c4f37e80 | 347 | ENTER_NESTED_DATA (pstate, exp, circref); |
8b840115 MD |
348 | if (SCM_OBJ_CLASS_FLAGS (exp) & SCM_CLASSF_GOOPS) |
349 | { | |
350 | SCM pwps, print = pstate->writingp ? g_write : g_display; | |
351 | if (!print) | |
352 | goto print_struct; | |
353 | SCM_NEWSMOB (pwps, | |
354 | scm_tc16_port_with_ps, | |
355 | scm_cons (port, pstate->handle)); | |
356 | scm_call_generic_2 (print, exp, pwps); | |
357 | } | |
358 | else | |
359 | { | |
360 | print_struct: | |
361 | scm_print_struct (exp, port, pstate); | |
362 | } | |
c4f37e80 | 363 | EXIT_NESTED_DATA (pstate); |
0f2d19dd JB |
364 | break; |
365 | } | |
366 | ||
367 | case scm_tcs_cons_imcar: | |
368 | case scm_tcs_cons_nimcar: | |
c62fbfe1 MD |
369 | ENTER_NESTED_DATA (pstate, exp, circref); |
370 | scm_iprlist ("(", exp, ')', port, pstate); | |
371 | EXIT_NESTED_DATA (pstate); | |
a51ea417 MD |
372 | break; |
373 | circref: | |
c62fbfe1 | 374 | print_circref (port, pstate, exp); |
0f2d19dd | 375 | break; |
7332df66 | 376 | macros: |
80ea260c | 377 | if (!SCM_CLOSUREP (SCM_CDR (exp))) |
7332df66 | 378 | goto prinmacro; |
0f2d19dd | 379 | case scm_tcs_closures: |
7332df66 MD |
380 | /* The user supplied print closure procedure must handle |
381 | macro closures as well. */ | |
bb35f315 MV |
382 | if (SCM_FALSEP (scm_procedure_p (SCM_PRINT_CLOSURE)) |
383 | || SCM_FALSEP (scm_printer_apply (SCM_PRINT_CLOSURE, | |
77c25af7 | 384 | exp, port, pstate))) |
bb35f315 | 385 | { |
ba031394 | 386 | SCM name, code, env; |
bb35f315 MV |
387 | if (SCM_TYP16 (exp) == scm_tc16_macro) |
388 | { | |
389 | /* Printing a macro. */ | |
390 | prinmacro: | |
391 | name = scm_macro_name (exp); | |
392 | if (!SCM_CLOSUREP (SCM_CDR (exp))) | |
393 | { | |
f44dd64b | 394 | code = env = 0; |
b7f3516f | 395 | scm_puts ("#<primitive-", port); |
bb35f315 MV |
396 | } |
397 | else | |
398 | { | |
399 | code = SCM_CODE (SCM_CDR (exp)); | |
ba031394 | 400 | env = SCM_ENV (SCM_CDR (exp)); |
b7f3516f | 401 | scm_puts ("#<", port); |
bb35f315 MV |
402 | } |
403 | if (SCM_CAR (exp) & (3L << 16)) | |
b7f3516f | 404 | scm_puts ("macro", port); |
bb35f315 | 405 | else |
b7f3516f | 406 | scm_puts ("syntax", port); |
bb35f315 | 407 | if (SCM_CAR (exp) & (2L << 16)) |
b7f3516f | 408 | scm_putc ('!', port); |
bb35f315 MV |
409 | } |
410 | else | |
411 | { | |
412 | /* Printing a closure. */ | |
413 | name = scm_procedure_name (exp); | |
414 | code = SCM_CODE (exp); | |
ba031394 | 415 | env = SCM_ENV (exp); |
b7f3516f | 416 | scm_puts ("#<procedure", port); |
bb35f315 MV |
417 | } |
418 | if (SCM_NIMP (name) && SCM_ROSTRINGP (name)) | |
419 | { | |
b7f3516f TT |
420 | scm_putc (' ', port); |
421 | scm_puts (SCM_ROCHARS (name), port); | |
bb35f315 MV |
422 | } |
423 | if (code) | |
424 | { | |
ba031394 MD |
425 | if (SCM_PRINT_SOURCE_P) |
426 | { | |
427 | code = scm_unmemocopy (code, | |
428 | SCM_EXTEND_ENV (SCM_CAR (code), | |
429 | SCM_EOL, | |
430 | env)); | |
431 | ENTER_NESTED_DATA (pstate, exp, circref); | |
432 | scm_iprlist (" ", code, '>', port, pstate); | |
433 | EXIT_NESTED_DATA (pstate); | |
434 | } | |
435 | else | |
436 | { | |
437 | if (SCM_TYP16 (exp) != scm_tc16_macro) | |
438 | { | |
b7f3516f | 439 | scm_putc (' ', port); |
ba031394 MD |
440 | scm_iprin1 (SCM_CAR (code), port, pstate); |
441 | } | |
b7f3516f | 442 | scm_putc ('>', port); |
ba031394 | 443 | } |
bb35f315 MV |
444 | } |
445 | else | |
b7f3516f | 446 | scm_putc ('>', port); |
bb35f315 | 447 | } |
0f2d19dd | 448 | break; |
0f2d19dd JB |
449 | case scm_tc7_substring: |
450 | case scm_tc7_string: | |
c62fbfe1 | 451 | if (SCM_WRITINGP (pstate)) |
0f2d19dd | 452 | { |
5ca6dc39 JB |
453 | scm_sizet i; |
454 | ||
b7f3516f | 455 | scm_putc ('"', port); |
0f2d19dd JB |
456 | for (i = 0; i < SCM_ROLENGTH (exp); ++i) |
457 | switch (SCM_ROCHARS (exp)[i]) | |
458 | { | |
dbef8851 | 459 | case '"': |
0f2d19dd | 460 | case '\\': |
b7f3516f | 461 | scm_putc ('\\', port); |
0f2d19dd | 462 | default: |
b7f3516f | 463 | scm_putc (SCM_ROCHARS (exp)[i], port); |
0f2d19dd | 464 | } |
b7f3516f | 465 | scm_putc ('"', port); |
0f2d19dd JB |
466 | break; |
467 | } | |
468 | else | |
b7f3516f TT |
469 | scm_lfwrite (SCM_ROCHARS (exp), (scm_sizet) SCM_ROLENGTH (exp), |
470 | port); | |
0f2d19dd JB |
471 | break; |
472 | case scm_tcs_symbols: | |
0f2d19dd JB |
473 | { |
474 | int pos; | |
475 | int end; | |
476 | int len; | |
477 | char * str; | |
478 | int weird; | |
479 | int maybe_weird; | |
4dc2435a | 480 | int mw_pos = 0; |
0f2d19dd JB |
481 | |
482 | len = SCM_LENGTH (exp); | |
483 | str = SCM_CHARS (exp); | |
484 | scm_remember (&exp); | |
485 | pos = 0; | |
486 | weird = 0; | |
487 | maybe_weird = 0; | |
488 | ||
489 | if (len == 0) | |
b7f3516f | 490 | scm_lfwrite ("#{}#", 4, port); |
0f2d19dd JB |
491 | |
492 | for (end = pos; end < len; ++end) | |
493 | switch (str[end]) | |
494 | { | |
495 | #ifdef BRACKETS_AS_PARENS | |
496 | case '[': | |
497 | case ']': | |
498 | #endif | |
499 | case '(': | |
500 | case ')': | |
dbef8851 | 501 | case '"': |
0f2d19dd JB |
502 | case ';': |
503 | case SCM_WHITE_SPACES: | |
504 | case SCM_LINE_INCREMENTORS: | |
505 | weird_handler: | |
506 | if (maybe_weird) | |
507 | { | |
508 | end = mw_pos; | |
509 | maybe_weird = 0; | |
510 | } | |
511 | if (!weird) | |
512 | { | |
b7f3516f | 513 | scm_lfwrite ("#{", 2, port); |
0f2d19dd JB |
514 | weird = 1; |
515 | } | |
516 | if (pos < end) | |
517 | { | |
b7f3516f | 518 | scm_lfwrite (str + pos, end - pos, port); |
0f2d19dd JB |
519 | } |
520 | { | |
521 | char buf[2]; | |
522 | buf[0] = '\\'; | |
523 | buf[1] = str[end]; | |
b7f3516f | 524 | scm_lfwrite (buf, 2, port); |
0f2d19dd JB |
525 | } |
526 | pos = end + 1; | |
527 | break; | |
528 | case '\\': | |
529 | if (weird) | |
530 | goto weird_handler; | |
531 | if (!maybe_weird) | |
532 | { | |
533 | maybe_weird = 1; | |
534 | mw_pos = pos; | |
535 | } | |
536 | break; | |
537 | case '}': | |
538 | case '#': | |
539 | if (weird) | |
540 | goto weird_handler; | |
541 | break; | |
542 | default: | |
543 | break; | |
544 | } | |
545 | if (pos < end) | |
b7f3516f | 546 | scm_lfwrite (str + pos, end - pos, port); |
0f2d19dd | 547 | if (weird) |
b7f3516f | 548 | scm_lfwrite ("}#", 2, port); |
0f2d19dd JB |
549 | break; |
550 | } | |
551 | case scm_tc7_wvect: | |
c62fbfe1 | 552 | ENTER_NESTED_DATA (pstate, exp, circref); |
0f2d19dd | 553 | if (SCM_IS_WHVEC (exp)) |
b7f3516f | 554 | scm_puts ("#wh(", port); |
0f2d19dd | 555 | else |
b7f3516f | 556 | scm_puts ("#w(", port); |
0f2d19dd JB |
557 | goto common_vector_printer; |
558 | ||
559 | case scm_tc7_vector: | |
c62fbfe1 | 560 | ENTER_NESTED_DATA (pstate, exp, circref); |
b7f3516f | 561 | scm_puts ("#(", port); |
0f2d19dd | 562 | common_vector_printer: |
9fbaf27c | 563 | { |
5ca6dc39 | 564 | register long i; |
9fbaf27c MD |
565 | int last = SCM_LENGTH (exp) - 1; |
566 | int cutp = 0; | |
567 | if (pstate->fancyp && SCM_LENGTH (exp) > pstate->length) | |
568 | { | |
569 | last = pstate->length - 1; | |
570 | cutp = 1; | |
571 | } | |
572 | for (i = 0; i < last; ++i) | |
573 | { | |
574 | /* CHECK_INTS; */ | |
575 | scm_iprin1 (SCM_VELTS (exp)[i], port, pstate); | |
b7f3516f | 576 | scm_putc (' ', port); |
9fbaf27c MD |
577 | } |
578 | if (i == last) | |
579 | { | |
580 | /* CHECK_INTS; */ | |
581 | scm_iprin1 (SCM_VELTS (exp)[i], port, pstate); | |
582 | } | |
583 | if (cutp) | |
b7f3516f TT |
584 | scm_puts (" ...", port); |
585 | scm_putc (')', port); | |
9fbaf27c | 586 | } |
c62fbfe1 | 587 | EXIT_NESTED_DATA (pstate); |
0f2d19dd | 588 | break; |
afe5177e | 589 | #ifdef HAVE_ARRAYS |
0f2d19dd JB |
590 | case scm_tc7_bvect: |
591 | case scm_tc7_byvect: | |
592 | case scm_tc7_svect: | |
593 | case scm_tc7_ivect: | |
594 | case scm_tc7_uvect: | |
595 | case scm_tc7_fvect: | |
596 | case scm_tc7_dvect: | |
597 | case scm_tc7_cvect: | |
5c11cc9d | 598 | #ifdef HAVE_LONG_LONGS |
0f2d19dd JB |
599 | case scm_tc7_llvect: |
600 | #endif | |
c62fbfe1 | 601 | scm_raprin1 (exp, port, pstate); |
0f2d19dd | 602 | break; |
afe5177e | 603 | #endif |
0f2d19dd | 604 | case scm_tcs_subrs: |
9de33deb MD |
605 | scm_puts (SCM_SUBR_GENERIC (exp) && *SCM_SUBR_GENERIC (exp) |
606 | ? "#<primitive-generic " | |
607 | : "#<primitive-procedure ", | |
608 | port); | |
b7f3516f TT |
609 | scm_puts (SCM_CHARS (SCM_SNAME (exp)), port); |
610 | scm_putc ('>', port); | |
0f2d19dd JB |
611 | break; |
612 | #ifdef CCLO | |
613 | case scm_tc7_cclo: | |
56977059 MD |
614 | { |
615 | SCM proc = SCM_CCLO_SUBR (exp); | |
616 | if (proc == scm_f_gsubr_apply) | |
617 | { | |
618 | /* Print gsubrs as primitives */ | |
c180dfd3 | 619 | SCM name = scm_procedure_name (exp); |
56977059 MD |
620 | scm_puts ("#<primitive-procedure", port); |
621 | if (SCM_NFALSEP (name)) | |
622 | { | |
623 | scm_putc (' ', port); | |
624 | scm_puts (SCM_CHARS (name), port); | |
625 | } | |
626 | } | |
627 | else | |
628 | { | |
629 | scm_puts ("#<compiled-closure ", port); | |
630 | scm_iprin1 (proc, port, pstate); | |
631 | } | |
632 | scm_putc ('>', port); | |
633 | } | |
0f2d19dd JB |
634 | break; |
635 | #endif | |
c180dfd3 MD |
636 | case scm_tc7_pws: |
637 | scm_puts ("#<procedure-with-setter", port); | |
638 | { | |
639 | SCM name = scm_procedure_name (exp); | |
640 | if (SCM_NFALSEP (name)) | |
641 | { | |
642 | scm_putc (' ', port); | |
643 | scm_puts (SCM_ROCHARS (name), port); | |
644 | } | |
645 | } | |
646 | scm_putc ('>', port); | |
647 | break; | |
0f2d19dd | 648 | case scm_tc7_contin: |
b7f3516f | 649 | scm_puts ("#<continuation ", port); |
0f2d19dd | 650 | scm_intprint (SCM_LENGTH (exp), 10, port); |
b7f3516f | 651 | scm_puts (" @ ", port); |
0f2d19dd | 652 | scm_intprint ((long) SCM_CHARS (exp), 16, port); |
b7f3516f | 653 | scm_putc ('>', port); |
0f2d19dd JB |
654 | break; |
655 | case scm_tc7_port: | |
5ca6dc39 JB |
656 | { |
657 | register long i = SCM_PTOBNUM (exp); | |
658 | if (i < scm_numptob | |
659 | && scm_ptobs[i].print | |
660 | && (scm_ptobs[i].print) (exp, port, pstate)) | |
a51ea417 | 661 | break; |
5ca6dc39 JB |
662 | goto punk; |
663 | } | |
664 | case scm_tc7_smob: | |
665 | { | |
666 | register long i; | |
667 | ENTER_NESTED_DATA (pstate, exp, circref); | |
668 | i = SCM_SMOBNUM (exp); | |
669 | if (i < scm_numsmob && scm_smobs[i].print | |
670 | && (scm_smobs[i].print) (exp, port, pstate)) | |
671 | { | |
672 | EXIT_NESTED_DATA (pstate); | |
673 | break; | |
674 | } | |
675 | EXIT_NESTED_DATA (pstate); | |
676 | /* Macros have their print field set to NULL. They are | |
677 | handled at the same place as closures in order to achieve | |
678 | non-redundancy. Placing the condition here won't slow | |
679 | down printing of other smobs. */ | |
680 | if (SCM_TYP16 (exp) == scm_tc16_macro) | |
681 | goto macros; | |
682 | } | |
0f2d19dd | 683 | default: |
a51ea417 MD |
684 | punk: |
685 | scm_ipruk ("type", exp, port); | |
0f2d19dd JB |
686 | } |
687 | } | |
688 | } | |
689 | ||
c62fbfe1 MD |
690 | /* Print states are necessary for circular reference safe printing. |
691 | * They are also expensive to allocate. Therefore print states are | |
692 | * kept in a pool so that they can be reused. | |
693 | */ | |
1cc91f1b | 694 | |
bb35f315 MV |
695 | /* The PORT argument can also be a print-state/port pair, which will |
696 | * then be used instead of allocating a new print state. This is | |
697 | * useful for continuing a chain of print calls from Scheme. */ | |
698 | ||
a51ea417 | 699 | void |
1bbd0b84 | 700 | scm_prin1 (SCM exp, SCM port, int writingp) |
a51ea417 | 701 | { |
c4f37e80 MV |
702 | SCM handle = SCM_BOOL_F; /* Will GC protect the handle whilst unlinked */ |
703 | SCM pstate_scm; | |
c62fbfe1 MD |
704 | scm_print_state *pstate; |
705 | ||
bb35f315 MV |
706 | /* If PORT is a print-state/port pair, use that. Else create a new |
707 | print-state. */ | |
c4f37e80 | 708 | |
52235e71 | 709 | if (SCM_NIMP (port) && SCM_PORT_WITH_PS_P (port)) |
bb35f315 | 710 | { |
52235e71 MD |
711 | pstate_scm = SCM_PORT_WITH_PS_PS (port); |
712 | port = SCM_PORT_WITH_PS_PORT (port); | |
bb35f315 MV |
713 | } |
714 | else | |
c62fbfe1 | 715 | { |
c4f37e80 MV |
716 | /* First try to allocate a print state from the pool */ |
717 | SCM_DEFER_INTS; | |
718 | if (SCM_NNULLP (SCM_CDR (print_state_pool))) | |
719 | { | |
720 | handle = SCM_CDR (print_state_pool); | |
721 | SCM_SETCDR (print_state_pool, SCM_CDDR (print_state_pool)); | |
722 | } | |
723 | SCM_ALLOW_INTS; | |
724 | if (handle == SCM_BOOL_F) | |
725 | handle = scm_cons (make_print_state (), SCM_EOL); | |
726 | pstate_scm = SCM_CAR (handle); | |
c62fbfe1 | 727 | } |
c62fbfe1 | 728 | |
c4f37e80 | 729 | pstate = SCM_PRINT_STATE (pstate_scm); |
c62fbfe1 MD |
730 | pstate->writingp = writingp; |
731 | scm_iprin1 (exp, port, pstate); | |
732 | ||
bb35f315 MV |
733 | /* Return print state to pool if it has been created above and |
734 | hasn't escaped to Scheme. */ | |
735 | ||
736 | if (handle != SCM_BOOL_F && !pstate->revealed) | |
c4f37e80 MV |
737 | { |
738 | SCM_DEFER_INTS; | |
739 | SCM_SETCDR (handle, SCM_CDR (print_state_pool)); | |
740 | SCM_SETCDR (print_state_pool, handle); | |
741 | SCM_ALLOW_INTS; | |
742 | } | |
a51ea417 MD |
743 | } |
744 | ||
0f2d19dd JB |
745 | |
746 | /* Print an integer. | |
747 | */ | |
1cc91f1b | 748 | |
0f2d19dd | 749 | void |
1bbd0b84 | 750 | scm_intprint (long n, int radix, SCM port) |
0f2d19dd JB |
751 | { |
752 | char num_buf[SCM_INTBUFLEN]; | |
b7f3516f | 753 | scm_lfwrite (num_buf, scm_iint2str (n, radix, num_buf), port); |
0f2d19dd JB |
754 | } |
755 | ||
756 | /* Print an object of unrecognized type. | |
757 | */ | |
1cc91f1b | 758 | |
0f2d19dd | 759 | void |
1bbd0b84 | 760 | scm_ipruk (char *hdr, SCM ptr, SCM port) |
0f2d19dd | 761 | { |
b7f3516f TT |
762 | scm_puts ("#<unknown-", port); |
763 | scm_puts (hdr, port); | |
0f2d19dd JB |
764 | if (SCM_CELLP (ptr)) |
765 | { | |
b7f3516f | 766 | scm_puts (" (0x", port); |
0f2d19dd | 767 | scm_intprint (SCM_CAR (ptr), 16, port); |
b7f3516f | 768 | scm_puts (" . 0x", port); |
0f2d19dd | 769 | scm_intprint (SCM_CDR (ptr), 16, port); |
b7f3516f | 770 | scm_puts (") @", port); |
0f2d19dd | 771 | } |
b7f3516f | 772 | scm_puts (" 0x", port); |
0f2d19dd | 773 | scm_intprint (ptr, 16, port); |
b7f3516f | 774 | scm_putc ('>', port); |
0f2d19dd JB |
775 | } |
776 | ||
777 | /* Print a list. | |
778 | */ | |
a51ea417 | 779 | |
1cc91f1b | 780 | |
0f2d19dd | 781 | void |
1bbd0b84 | 782 | scm_iprlist (char *hdr,SCM exp,int tlr,SCM port,scm_print_state *pstate) |
0f2d19dd | 783 | { |
c62fbfe1 MD |
784 | register SCM hare, tortoise; |
785 | int floor = pstate->top - 2; | |
b7f3516f | 786 | scm_puts (hdr, port); |
0f2d19dd | 787 | /* CHECK_INTS; */ |
c62fbfe1 MD |
788 | if (pstate->fancyp) |
789 | goto fancy_printing; | |
790 | ||
791 | /* Run a hare and tortoise so that total time complexity will be | |
792 | O(depth * N) instead of O(N^2). */ | |
793 | hare = SCM_CDR (exp); | |
794 | tortoise = exp; | |
2fab3faa | 795 | while (SCM_NIMP (hare) && SCM_ECONSP (hare)) |
c62fbfe1 MD |
796 | { |
797 | if (hare == tortoise) | |
798 | goto fancy_printing; | |
799 | hare = SCM_CDR (hare); | |
2fab3faa | 800 | if (SCM_IMP (hare) || SCM_NECONSP (hare)) |
c62fbfe1 MD |
801 | break; |
802 | hare = SCM_CDR (hare); | |
803 | tortoise = SCM_CDR (tortoise); | |
804 | } | |
805 | ||
806 | /* No cdr cycles intrinsic to this list */ | |
807 | scm_iprin1 (SCM_CAR (exp), port, pstate); | |
0f2d19dd JB |
808 | exp = SCM_CDR (exp); |
809 | for (; SCM_NIMP (exp); exp = SCM_CDR (exp)) | |
810 | { | |
5ca6dc39 JB |
811 | register int i; |
812 | ||
0f2d19dd JB |
813 | if (SCM_NECONSP (exp)) |
814 | break; | |
c62fbfe1 MD |
815 | for (i = floor; i >= 0; --i) |
816 | if (pstate->ref_stack[i] == exp) | |
817 | goto circref; | |
818 | PUSH_REF (pstate, exp); | |
b7f3516f | 819 | scm_putc (' ', port); |
0f2d19dd | 820 | /* CHECK_INTS; */ |
c62fbfe1 | 821 | scm_iprin1 (SCM_CAR (exp), port, pstate); |
0f2d19dd JB |
822 | } |
823 | if (SCM_NNULLP (exp)) | |
824 | { | |
b7f3516f | 825 | scm_puts (" . ", port); |
c62fbfe1 | 826 | scm_iprin1 (exp, port, pstate); |
0f2d19dd | 827 | } |
c62fbfe1 | 828 | |
a51ea417 | 829 | end: |
b7f3516f | 830 | scm_putc (tlr, port); |
c62fbfe1 | 831 | pstate->top = floor + 2; |
a51ea417 | 832 | return; |
c62fbfe1 MD |
833 | |
834 | fancy_printing: | |
835 | { | |
836 | int n = pstate->length; | |
837 | ||
838 | scm_iprin1 (SCM_CAR (exp), port, pstate); | |
839 | exp = SCM_CDR (exp); --n; | |
840 | for (; SCM_NIMP (exp); exp = SCM_CDR (exp)) | |
841 | { | |
5ca6dc39 JB |
842 | register unsigned long i; |
843 | ||
c62fbfe1 MD |
844 | if (SCM_NECONSP (exp)) |
845 | break; | |
846 | for (i = 0; i < pstate->top; ++i) | |
847 | if (pstate->ref_stack[i] == exp) | |
848 | goto fancy_circref; | |
849 | if (pstate->fancyp) | |
850 | { | |
851 | if (n == 0) | |
852 | { | |
b7f3516f | 853 | scm_puts (" ...", port); |
c62fbfe1 MD |
854 | goto skip_tail; |
855 | } | |
856 | else | |
857 | --n; | |
858 | } | |
859 | PUSH_REF(pstate, exp); | |
860 | ++pstate->list_offset; | |
b7f3516f | 861 | scm_putc (' ', port); |
c62fbfe1 MD |
862 | /* CHECK_INTS; */ |
863 | scm_iprin1 (SCM_CAR (exp), port, pstate); | |
864 | } | |
865 | } | |
866 | if (SCM_NNULLP (exp)) | |
867 | { | |
b7f3516f | 868 | scm_puts (" . ", port); |
c62fbfe1 MD |
869 | scm_iprin1 (exp, port, pstate); |
870 | } | |
871 | skip_tail: | |
872 | pstate->list_offset -= pstate->top - floor - 2; | |
a51ea417 | 873 | goto end; |
a51ea417 | 874 | |
c62fbfe1 MD |
875 | fancy_circref: |
876 | pstate->list_offset -= pstate->top - floor - 2; | |
877 | ||
878 | circref: | |
b7f3516f | 879 | scm_puts (" . ", port); |
c62fbfe1 MD |
880 | print_circref (port, pstate, exp); |
881 | goto end; | |
0f2d19dd JB |
882 | } |
883 | ||
884 | \f | |
885 | ||
bb35f315 MV |
886 | int |
887 | scm_valid_oport_value_p (SCM val) | |
888 | { | |
4bfdf158 MD |
889 | return (SCM_NIMP (val) |
890 | && (SCM_OPOUTPORTP (val) | |
c19bc088 MD |
891 | || (SCM_PORT_WITH_PS_P (val) |
892 | && SCM_OPOUTPORTP (SCM_PORT_WITH_PS_PORT (val))))); | |
bb35f315 MV |
893 | } |
894 | ||
8b840115 | 895 | /* SCM_GPROC(s_write, "write", 1, 1, 0, scm_write, g_write); */ |
1cc91f1b | 896 | |
0f2d19dd | 897 | SCM |
1bbd0b84 | 898 | scm_write (SCM obj, SCM port) |
0f2d19dd JB |
899 | { |
900 | if (SCM_UNBNDP (port)) | |
901 | port = scm_cur_outp; | |
3eb7e6ee JB |
902 | |
903 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG2, s_write); | |
bb35f315 | 904 | |
a51ea417 | 905 | scm_prin1 (obj, port, 1); |
0f2d19dd JB |
906 | #ifdef HAVE_PIPE |
907 | # ifdef EPIPE | |
908 | if (EPIPE == errno) | |
909 | scm_close_port (port); | |
910 | # endif | |
911 | #endif | |
912 | return SCM_UNSPECIFIED; | |
913 | } | |
914 | ||
915 | ||
8b840115 | 916 | /* SCM_GPROC(s_display, "display", 1, 1, 0, scm_display, g_display); */ |
1cc91f1b | 917 | |
0f2d19dd | 918 | SCM |
1bbd0b84 | 919 | scm_display (SCM obj, SCM port) |
0f2d19dd JB |
920 | { |
921 | if (SCM_UNBNDP (port)) | |
922 | port = scm_cur_outp; | |
3eb7e6ee JB |
923 | |
924 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG2, s_display); | |
bb35f315 | 925 | |
a51ea417 | 926 | scm_prin1 (obj, port, 0); |
0f2d19dd JB |
927 | #ifdef HAVE_PIPE |
928 | # ifdef EPIPE | |
929 | if (EPIPE == errno) | |
930 | scm_close_port (port); | |
931 | # endif | |
932 | #endif | |
933 | return SCM_UNSPECIFIED; | |
934 | } | |
935 | ||
1bbd0b84 GB |
936 | GUILE_PROC(scm_newline, "newline", 0, 1, 0, |
937 | (SCM port), | |
938 | "") | |
939 | #define FUNC_NAME s_scm_newline | |
0f2d19dd JB |
940 | { |
941 | if (SCM_UNBNDP (port)) | |
bb35f315 | 942 | port = scm_cur_outp; |
3eb7e6ee | 943 | |
1bbd0b84 | 944 | SCM_VALIDATE_OPORT_VALUE(1,port); |
bb35f315 | 945 | |
0ef4ae82 | 946 | scm_putc ('\n', SCM_COERCE_OUTPORT (port)); |
0f2d19dd JB |
947 | return SCM_UNSPECIFIED; |
948 | } | |
1bbd0b84 | 949 | #undef FUNC_NAME |
0f2d19dd | 950 | |
1bbd0b84 GB |
951 | GUILE_PROC(scm_write_char, "write-char", 1, 1, 0, |
952 | (SCM chr, SCM port), | |
953 | "") | |
954 | #define FUNC_NAME s_scm_write_char | |
0f2d19dd JB |
955 | { |
956 | if (SCM_UNBNDP (port)) | |
bb35f315 | 957 | port = scm_cur_outp; |
3eb7e6ee | 958 | |
1bbd0b84 GB |
959 | SCM_VALIDATE_CHAR(1,chr); |
960 | SCM_VALIDATE_OPORT_VALUE(2,port); | |
bb35f315 | 961 | |
0ef4ae82 | 962 | scm_putc ((int) SCM_ICHR (chr), SCM_COERCE_OUTPORT (port)); |
0f2d19dd JB |
963 | #ifdef HAVE_PIPE |
964 | # ifdef EPIPE | |
965 | if (EPIPE == errno) | |
966 | scm_close_port (port); | |
967 | # endif | |
968 | #endif | |
969 | return SCM_UNSPECIFIED; | |
970 | } | |
1bbd0b84 | 971 | #undef FUNC_NAME |
0f2d19dd | 972 | |
0f2d19dd JB |
973 | \f |
974 | ||
bb35f315 | 975 | /* Call back to Scheme code to do the printing of special objects |
c19bc088 MD |
976 | * (like structs). SCM_PRINTER_APPLY applies PROC to EXP and a smob |
977 | * containing PORT and PSTATE. This object can be used as the port for | |
978 | * display/write etc to continue the current print chain. The REVEALED | |
979 | * field of PSTATE is set to true to indicate that the print state has | |
980 | * escaped to Scheme and thus has to be freed by the GC. | |
981 | */ | |
982 | ||
983 | long scm_tc16_port_with_ps; | |
984 | ||
985 | /* Print exactly as the port itself would */ | |
986 | ||
987 | static int | |
988 | print_port_with_ps (SCM obj, SCM port, scm_print_state *pstate) | |
989 | { | |
990 | obj = SCM_PORT_WITH_PS_PORT (obj); | |
991 | return scm_ptobs[SCM_PTOBNUM (obj)].print (obj, port, pstate); | |
992 | } | |
c4f37e80 MV |
993 | |
994 | SCM | |
1bbd0b84 | 995 | scm_printer_apply (SCM proc, SCM exp, SCM port, scm_print_state *pstate) |
c4f37e80 | 996 | { |
c19bc088 | 997 | SCM pwps; |
bb35f315 | 998 | SCM pair = scm_cons (port, pstate->handle); |
c19bc088 | 999 | SCM_NEWSMOB (pwps, scm_tc16_port_with_ps, pair); |
bb35f315 | 1000 | pstate->revealed = 1; |
c19bc088 MD |
1001 | return scm_apply (proc, exp, scm_cons (pwps, scm_listofnull)); |
1002 | } | |
1003 | ||
1bbd0b84 GB |
1004 | GUILE_PROC (scm_port_with_print_state, "port-with-print-state", 2, 0, 0, |
1005 | (SCM port, SCM pstate), | |
1006 | "") | |
1007 | #define FUNC_NAME s_scm_port_with_print_state | |
c19bc088 MD |
1008 | { |
1009 | SCM pwps; | |
1bbd0b84 GB |
1010 | SCM_VALIDATE_OPORT_VALUE(1,port); |
1011 | SCM_VALIDATE_PRINTSTATE(2,pstate); | |
c19bc088 MD |
1012 | port = SCM_COERCE_OUTPORT (port); |
1013 | SCM_NEWSMOB (pwps, scm_tc16_port_with_ps, scm_cons (port, pstate)); | |
1014 | return pwps; | |
1015 | } | |
1bbd0b84 | 1016 | #undef FUNC_NAME |
c19bc088 | 1017 | |
1bbd0b84 GB |
1018 | GUILE_PROC (scm_get_print_state, "get-print-state", 1, 0, 0, |
1019 | (SCM port), | |
1020 | "") | |
1021 | #define FUNC_NAME s_scm_get_print_state | |
c19bc088 MD |
1022 | { |
1023 | if (SCM_NIMP (port)) | |
1024 | { | |
1025 | if (SCM_PORT_WITH_PS_P (port)) | |
1026 | return SCM_PORT_WITH_PS_PS (port); | |
1027 | if (SCM_OUTPORTP (port)) | |
1028 | return SCM_BOOL_F; | |
1029 | } | |
1bbd0b84 | 1030 | RETURN_SCM_WTA (1,port); |
c4f37e80 | 1031 | } |
1bbd0b84 | 1032 | #undef FUNC_NAME |
bb35f315 | 1033 | |
c4f37e80 | 1034 | \f |
1cc91f1b | 1035 | |
0f2d19dd JB |
1036 | void |
1037 | scm_init_print () | |
0f2d19dd | 1038 | { |
c19bc088 | 1039 | SCM vtable, layout, type; |
4bfdf158 | 1040 | |
b7ff98dd | 1041 | scm_init_opts (scm_print_options, scm_print_opts, SCM_N_PRINT_OPTIONS); |
4bfdf158 MD |
1042 | vtable = scm_make_vtable_vtable (scm_make_struct_layout (scm_nullstr), |
1043 | SCM_INUM0, | |
1044 | SCM_EOL); | |
1045 | layout = scm_make_struct_layout (scm_makfrom0str (SCM_PRINT_STATE_LAYOUT)); | |
c19bc088 | 1046 | type = scm_make_struct (vtable, SCM_INUM0, SCM_LIST1 (layout)); |
e9cd0e47 | 1047 | scm_set_struct_vtable_name_x (type, SCM_CAR (scm_intern0 ("print-state"))); |
c62fbfe1 | 1048 | print_state_pool = scm_permanent_object (scm_cons (type, SCM_EOL)); |
c4f37e80 | 1049 | |
bb35f315 | 1050 | scm_print_state_vtable = type; |
c4f37e80 | 1051 | |
c19bc088 MD |
1052 | /* Don't want to bind a wrapper class in GOOPS, so pass 0 as arg1. */ |
1053 | scm_tc16_port_with_ps = scm_make_smob_type (0, 0); | |
1054 | scm_set_smob_mark (scm_tc16_port_with_ps, scm_markcdr); | |
1055 | scm_set_smob_print (scm_tc16_port_with_ps, print_port_with_ps); | |
1056 | ||
0f2d19dd JB |
1057 | #include "print.x" |
1058 | } |