Commit | Line | Data |
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7dc6e754 | 1 | /* Copyright (C) 1995,1996,1997,1998 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" |
0f2d19dd | 56 | |
20e6290e | 57 | #include "print.h" |
0f2d19dd JB |
58 | \f |
59 | ||
60 | /* {Names of immediate symbols} | |
61 | * | |
62 | * This table must agree with the declarations in scm.h: {Immediate Symbols}. | |
63 | */ | |
64 | ||
65 | char *scm_isymnames[] = | |
66 | { | |
67 | /* This table must agree with the declarations */ | |
68 | "#@and", | |
69 | "#@begin", | |
70 | "#@case", | |
71 | "#@cond", | |
72 | "#@do", | |
73 | "#@if", | |
74 | "#@lambda", | |
75 | "#@let", | |
76 | "#@let*", | |
77 | "#@letrec", | |
78 | "#@or", | |
79 | "#@quote", | |
80 | "#@set!", | |
81 | "#@define", | |
82 | #if 0 | |
83 | "#@literal-variable-ref", | |
84 | "#@literal-variable-set!", | |
85 | #endif | |
86 | "#@apply", | |
87 | "#@call-with-current-continuation", | |
88 | ||
89 | /* user visible ISYMS */ | |
90 | /* other keywords */ | |
91 | /* Flags */ | |
92 | ||
93 | "#f", | |
94 | "#t", | |
95 | "#<undefined>", | |
96 | "#<eof>", | |
97 | "()", | |
4df91bd6 MD |
98 | "#<unspecified>", |
99 | "#@dispatch", | |
43c667e9 MD |
100 | "#@slot-ref", |
101 | "#@slot-set!", | |
159500fb | 102 | |
159500fb MD |
103 | /* Multi-language support */ |
104 | ||
105 | "#@nil-cond", | |
106 | "#@nil-ify", | |
107 | "#@t-ify", | |
108 | "#@0-cond", | |
109 | "#@0-ify", | |
110 | "#@1-ify", | |
111 | "#@bind" | |
0f2d19dd JB |
112 | }; |
113 | ||
e6e4c9af | 114 | scm_option scm_print_opts[] = { |
b7ff98dd | 115 | { SCM_OPTION_SCM, "closure-hook", SCM_BOOL_F, |
84f6a34a MD |
116 | "Hook for printing closures." }, |
117 | { SCM_OPTION_BOOLEAN, "source", 0, | |
118 | "Print closures with source." } | |
e6e4c9af MD |
119 | }; |
120 | ||
b7ff98dd | 121 | SCM_PROC (s_print_options, "print-options-interface", 0, 1, 0, scm_print_options); |
1cc91f1b | 122 | |
e6e4c9af | 123 | SCM |
a51ea417 MD |
124 | scm_print_options (setting) |
125 | SCM setting; | |
e6e4c9af | 126 | { |
a51ea417 | 127 | SCM ans = scm_options (setting, |
b7ff98dd MD |
128 | scm_print_opts, |
129 | SCM_N_PRINT_OPTIONS, | |
130 | s_print_options); | |
e6e4c9af MD |
131 | return ans; |
132 | } | |
e6e4c9af | 133 | |
0f2d19dd JB |
134 | \f |
135 | /* {Printing of Scheme Objects} | |
136 | */ | |
137 | ||
a51ea417 | 138 | /* Detection of circular references. |
c62fbfe1 MD |
139 | * |
140 | * Due to other constraints in the implementation, this code has bad | |
141 | * time complexity (O (depth * N)), The printer code will be | |
142 | * completely rewritten before next release of Guile. The new code | |
143 | * will be O(N). | |
a51ea417 | 144 | */ |
c62fbfe1 | 145 | #define PUSH_REF(pstate, obj) \ |
a51ea417 | 146 | { \ |
c62fbfe1 MD |
147 | pstate->ref_stack[pstate->top++] = (obj); \ |
148 | if (pstate->top == pstate->ceiling) \ | |
149 | grow_ref_stack (pstate); \ | |
150 | } | |
a51ea417 | 151 | |
c62fbfe1 | 152 | #define ENTER_NESTED_DATA(pstate, obj, label) \ |
a51ea417 | 153 | { \ |
5ca6dc39 | 154 | register unsigned long i; \ |
c62fbfe1 MD |
155 | for (i = 0; i < pstate->top; ++i) \ |
156 | if (pstate->ref_stack[i] == (obj)) \ | |
157 | goto label; \ | |
158 | if (pstate->fancyp) \ | |
159 | { \ | |
160 | if (pstate->top - pstate->list_offset >= pstate->level) \ | |
161 | { \ | |
b7f3516f | 162 | scm_putc ('#', port); \ |
c62fbfe1 MD |
163 | return; \ |
164 | } \ | |
165 | } \ | |
166 | PUSH_REF(pstate, obj); \ | |
a51ea417 MD |
167 | } \ |
168 | ||
c62fbfe1 MD |
169 | #define EXIT_NESTED_DATA(pstate) { --pstate->top; } |
170 | ||
bb35f315 | 171 | SCM scm_print_state_vtable; |
c4f37e80 | 172 | |
bb35f315 | 173 | static SCM print_state_pool; |
c4f37e80 | 174 | |
f843a84c | 175 | #ifdef GUILE_DEBUG /* Used for debugging purposes */ |
c62fbfe1 | 176 | SCM_PROC(s_current_pstate, "current-pstate", 0, 0, 0, scm_current_pstate); |
1cc91f1b | 177 | |
c62fbfe1 MD |
178 | SCM |
179 | scm_current_pstate () | |
c62fbfe1 MD |
180 | { |
181 | return SCM_CADR (print_state_pool); | |
182 | } | |
183 | #endif | |
184 | ||
185 | #define PSTATE_SIZE 50L | |
186 | ||
698c0295 MD |
187 | static SCM make_print_state SCM_P ((void)); |
188 | ||
189 | static SCM | |
190 | make_print_state () | |
191 | { | |
192 | SCM print_state = scm_make_struct (SCM_CAR (print_state_pool), /* pstate type */ | |
bf685b6d | 193 | SCM_INUM0, |
698c0295 | 194 | SCM_EOL); |
bf685b6d MD |
195 | scm_print_state *pstate = SCM_PRINT_STATE (print_state); |
196 | pstate->ref_vect = scm_make_vector (SCM_MAKINUM (PSTATE_SIZE), | |
bf685b6d MD |
197 | SCM_UNDEFINED); |
198 | pstate->ref_stack = SCM_VELTS (pstate->ref_vect); | |
199 | pstate->ceiling = SCM_LENGTH (pstate->ref_vect); | |
698c0295 MD |
200 | return print_state; |
201 | } | |
1cc91f1b | 202 | |
c62fbfe1 MD |
203 | SCM |
204 | scm_make_print_state () | |
c62fbfe1 | 205 | { |
698c0295 MD |
206 | SCM answer = 0; |
207 | ||
208 | /* First try to allocate a print state from the pool */ | |
209 | SCM_DEFER_INTS; | |
210 | if (SCM_NNULLP (SCM_CDR (print_state_pool))) | |
211 | { | |
212 | answer = SCM_CADR (print_state_pool); | |
213 | SCM_SETCDR (print_state_pool, SCM_CDDR (print_state_pool)); | |
214 | } | |
215 | SCM_ALLOW_INTS; | |
216 | ||
217 | return answer ? answer : make_print_state (); | |
c62fbfe1 | 218 | } |
a51ea417 | 219 | |
698c0295 MD |
220 | void |
221 | scm_free_print_state (print_state) | |
222 | SCM print_state; | |
223 | { | |
224 | SCM handle; | |
225 | scm_print_state *pstate = SCM_PRINT_STATE (print_state); | |
226 | /* Cleanup before returning print state to pool. | |
227 | * It is better to do it here. Doing it in scm_prin1 | |
228 | * would cost more since that function is called much more | |
229 | * often. | |
230 | */ | |
231 | pstate->fancyp = 0; | |
bb35f315 | 232 | pstate->revealed = 0; |
698c0295 MD |
233 | SCM_NEWCELL (handle); |
234 | SCM_DEFER_INTS; | |
235 | SCM_SETCAR (handle, print_state); | |
236 | SCM_SETCDR (handle, SCM_CDR (print_state_pool)); | |
237 | SCM_SETCDR (print_state_pool, handle); | |
238 | SCM_ALLOW_INTS; | |
239 | } | |
1cc91f1b JB |
240 | |
241 | static void grow_ref_stack SCM_P ((scm_print_state *pstate)); | |
242 | ||
a51ea417 | 243 | static void |
c62fbfe1 MD |
244 | grow_ref_stack (pstate) |
245 | scm_print_state *pstate; | |
a51ea417 | 246 | { |
bf685b6d MD |
247 | int new_size = 2 * pstate->ceiling; |
248 | scm_vector_set_length_x (pstate->ref_vect, SCM_MAKINUM (new_size)); | |
249 | pstate->ref_stack = SCM_VELTS (pstate->ref_vect); | |
250 | pstate->ceiling = new_size; | |
a51ea417 MD |
251 | } |
252 | ||
1cc91f1b JB |
253 | |
254 | static void print_circref SCM_P ((SCM port, scm_print_state *pstate, SCM ref)); | |
255 | ||
a51ea417 | 256 | static void |
c62fbfe1 MD |
257 | print_circref (port, pstate, ref) |
258 | SCM port; | |
259 | scm_print_state *pstate; | |
260 | 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 | */ |
a51ea417 | 286 | |
1cc91f1b | 287 | |
0f2d19dd | 288 | void |
c62fbfe1 | 289 | scm_iprin1 (exp, port, pstate) |
0f2d19dd JB |
290 | SCM exp; |
291 | SCM port; | |
c62fbfe1 | 292 | 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); |
bafcafb2 | 350 | scm_print_struct (exp, port, pstate); |
c4f37e80 | 351 | EXIT_NESTED_DATA (pstate); |
0f2d19dd JB |
352 | break; |
353 | } | |
354 | ||
355 | case scm_tcs_cons_imcar: | |
356 | case scm_tcs_cons_nimcar: | |
c62fbfe1 MD |
357 | ENTER_NESTED_DATA (pstate, exp, circref); |
358 | scm_iprlist ("(", exp, ')', port, pstate); | |
359 | EXIT_NESTED_DATA (pstate); | |
a51ea417 MD |
360 | break; |
361 | circref: | |
c62fbfe1 | 362 | print_circref (port, pstate, exp); |
0f2d19dd | 363 | break; |
7332df66 | 364 | macros: |
80ea260c | 365 | if (!SCM_CLOSUREP (SCM_CDR (exp))) |
7332df66 | 366 | goto prinmacro; |
0f2d19dd | 367 | case scm_tcs_closures: |
7332df66 MD |
368 | /* The user supplied print closure procedure must handle |
369 | macro closures as well. */ | |
bb35f315 MV |
370 | if (SCM_FALSEP (scm_procedure_p (SCM_PRINT_CLOSURE)) |
371 | || SCM_FALSEP (scm_printer_apply (SCM_PRINT_CLOSURE, | |
77c25af7 | 372 | exp, port, pstate))) |
bb35f315 | 373 | { |
ba031394 | 374 | SCM name, code, env; |
bb35f315 MV |
375 | if (SCM_TYP16 (exp) == scm_tc16_macro) |
376 | { | |
377 | /* Printing a macro. */ | |
378 | prinmacro: | |
379 | name = scm_macro_name (exp); | |
380 | if (!SCM_CLOSUREP (SCM_CDR (exp))) | |
381 | { | |
f44dd64b | 382 | code = env = 0; |
b7f3516f | 383 | scm_puts ("#<primitive-", port); |
bb35f315 MV |
384 | } |
385 | else | |
386 | { | |
387 | code = SCM_CODE (SCM_CDR (exp)); | |
ba031394 | 388 | env = SCM_ENV (SCM_CDR (exp)); |
b7f3516f | 389 | scm_puts ("#<", port); |
bb35f315 MV |
390 | } |
391 | if (SCM_CAR (exp) & (3L << 16)) | |
b7f3516f | 392 | scm_puts ("macro", port); |
bb35f315 | 393 | else |
b7f3516f | 394 | scm_puts ("syntax", port); |
bb35f315 | 395 | if (SCM_CAR (exp) & (2L << 16)) |
b7f3516f | 396 | scm_putc ('!', port); |
bb35f315 MV |
397 | } |
398 | else | |
399 | { | |
400 | /* Printing a closure. */ | |
401 | name = scm_procedure_name (exp); | |
402 | code = SCM_CODE (exp); | |
ba031394 | 403 | env = SCM_ENV (exp); |
b7f3516f | 404 | scm_puts ("#<procedure", port); |
bb35f315 MV |
405 | } |
406 | if (SCM_NIMP (name) && SCM_ROSTRINGP (name)) | |
407 | { | |
b7f3516f TT |
408 | scm_putc (' ', port); |
409 | scm_puts (SCM_ROCHARS (name), port); | |
bb35f315 MV |
410 | } |
411 | if (code) | |
412 | { | |
ba031394 MD |
413 | if (SCM_PRINT_SOURCE_P) |
414 | { | |
415 | code = scm_unmemocopy (code, | |
416 | SCM_EXTEND_ENV (SCM_CAR (code), | |
417 | SCM_EOL, | |
418 | env)); | |
419 | ENTER_NESTED_DATA (pstate, exp, circref); | |
420 | scm_iprlist (" ", code, '>', port, pstate); | |
421 | EXIT_NESTED_DATA (pstate); | |
422 | } | |
423 | else | |
424 | { | |
425 | if (SCM_TYP16 (exp) != scm_tc16_macro) | |
426 | { | |
b7f3516f | 427 | scm_putc (' ', port); |
ba031394 MD |
428 | scm_iprin1 (SCM_CAR (code), port, pstate); |
429 | } | |
b7f3516f | 430 | scm_putc ('>', port); |
ba031394 | 431 | } |
bb35f315 MV |
432 | } |
433 | else | |
b7f3516f | 434 | scm_putc ('>', port); |
bb35f315 | 435 | } |
0f2d19dd | 436 | break; |
0f2d19dd JB |
437 | case scm_tc7_substring: |
438 | case scm_tc7_string: | |
c62fbfe1 | 439 | if (SCM_WRITINGP (pstate)) |
0f2d19dd | 440 | { |
5ca6dc39 JB |
441 | scm_sizet i; |
442 | ||
b7f3516f | 443 | scm_putc ('"', port); |
0f2d19dd JB |
444 | for (i = 0; i < SCM_ROLENGTH (exp); ++i) |
445 | switch (SCM_ROCHARS (exp)[i]) | |
446 | { | |
dbef8851 | 447 | case '"': |
0f2d19dd | 448 | case '\\': |
b7f3516f | 449 | scm_putc ('\\', port); |
0f2d19dd | 450 | default: |
b7f3516f | 451 | scm_putc (SCM_ROCHARS (exp)[i], port); |
0f2d19dd | 452 | } |
b7f3516f | 453 | scm_putc ('"', port); |
0f2d19dd JB |
454 | break; |
455 | } | |
456 | else | |
b7f3516f TT |
457 | scm_lfwrite (SCM_ROCHARS (exp), (scm_sizet) SCM_ROLENGTH (exp), |
458 | port); | |
0f2d19dd JB |
459 | break; |
460 | case scm_tcs_symbols: | |
0f2d19dd JB |
461 | { |
462 | int pos; | |
463 | int end; | |
464 | int len; | |
465 | char * str; | |
466 | int weird; | |
467 | int maybe_weird; | |
4dc2435a | 468 | int mw_pos = 0; |
0f2d19dd JB |
469 | |
470 | len = SCM_LENGTH (exp); | |
471 | str = SCM_CHARS (exp); | |
472 | scm_remember (&exp); | |
473 | pos = 0; | |
474 | weird = 0; | |
475 | maybe_weird = 0; | |
476 | ||
477 | if (len == 0) | |
b7f3516f | 478 | scm_lfwrite ("#{}#", 4, port); |
0f2d19dd JB |
479 | |
480 | for (end = pos; end < len; ++end) | |
481 | switch (str[end]) | |
482 | { | |
483 | #ifdef BRACKETS_AS_PARENS | |
484 | case '[': | |
485 | case ']': | |
486 | #endif | |
487 | case '(': | |
488 | case ')': | |
dbef8851 | 489 | case '"': |
0f2d19dd JB |
490 | case ';': |
491 | case SCM_WHITE_SPACES: | |
492 | case SCM_LINE_INCREMENTORS: | |
493 | weird_handler: | |
494 | if (maybe_weird) | |
495 | { | |
496 | end = mw_pos; | |
497 | maybe_weird = 0; | |
498 | } | |
499 | if (!weird) | |
500 | { | |
b7f3516f | 501 | scm_lfwrite ("#{", 2, port); |
0f2d19dd JB |
502 | weird = 1; |
503 | } | |
504 | if (pos < end) | |
505 | { | |
b7f3516f | 506 | scm_lfwrite (str + pos, end - pos, port); |
0f2d19dd JB |
507 | } |
508 | { | |
509 | char buf[2]; | |
510 | buf[0] = '\\'; | |
511 | buf[1] = str[end]; | |
b7f3516f | 512 | scm_lfwrite (buf, 2, port); |
0f2d19dd JB |
513 | } |
514 | pos = end + 1; | |
515 | break; | |
516 | case '\\': | |
517 | if (weird) | |
518 | goto weird_handler; | |
519 | if (!maybe_weird) | |
520 | { | |
521 | maybe_weird = 1; | |
522 | mw_pos = pos; | |
523 | } | |
524 | break; | |
525 | case '}': | |
526 | case '#': | |
527 | if (weird) | |
528 | goto weird_handler; | |
529 | break; | |
530 | default: | |
531 | break; | |
532 | } | |
533 | if (pos < end) | |
b7f3516f | 534 | scm_lfwrite (str + pos, end - pos, port); |
0f2d19dd | 535 | if (weird) |
b7f3516f | 536 | scm_lfwrite ("}#", 2, port); |
0f2d19dd JB |
537 | break; |
538 | } | |
539 | case scm_tc7_wvect: | |
c62fbfe1 | 540 | ENTER_NESTED_DATA (pstate, exp, circref); |
0f2d19dd | 541 | if (SCM_IS_WHVEC (exp)) |
b7f3516f | 542 | scm_puts ("#wh(", port); |
0f2d19dd | 543 | else |
b7f3516f | 544 | scm_puts ("#w(", port); |
0f2d19dd JB |
545 | goto common_vector_printer; |
546 | ||
547 | case scm_tc7_vector: | |
c62fbfe1 | 548 | ENTER_NESTED_DATA (pstate, exp, circref); |
b7f3516f | 549 | scm_puts ("#(", port); |
0f2d19dd | 550 | common_vector_printer: |
9fbaf27c | 551 | { |
5ca6dc39 | 552 | register long i; |
9fbaf27c MD |
553 | int last = SCM_LENGTH (exp) - 1; |
554 | int cutp = 0; | |
555 | if (pstate->fancyp && SCM_LENGTH (exp) > pstate->length) | |
556 | { | |
557 | last = pstate->length - 1; | |
558 | cutp = 1; | |
559 | } | |
560 | for (i = 0; i < last; ++i) | |
561 | { | |
562 | /* CHECK_INTS; */ | |
563 | scm_iprin1 (SCM_VELTS (exp)[i], port, pstate); | |
b7f3516f | 564 | scm_putc (' ', port); |
9fbaf27c MD |
565 | } |
566 | if (i == last) | |
567 | { | |
568 | /* CHECK_INTS; */ | |
569 | scm_iprin1 (SCM_VELTS (exp)[i], port, pstate); | |
570 | } | |
571 | if (cutp) | |
b7f3516f TT |
572 | scm_puts (" ...", port); |
573 | scm_putc (')', port); | |
9fbaf27c | 574 | } |
c62fbfe1 | 575 | EXIT_NESTED_DATA (pstate); |
0f2d19dd JB |
576 | break; |
577 | case scm_tc7_bvect: | |
578 | case scm_tc7_byvect: | |
579 | case scm_tc7_svect: | |
580 | case scm_tc7_ivect: | |
581 | case scm_tc7_uvect: | |
582 | case scm_tc7_fvect: | |
583 | case scm_tc7_dvect: | |
584 | case scm_tc7_cvect: | |
585 | #ifdef LONGLONGS | |
586 | case scm_tc7_llvect: | |
587 | #endif | |
c62fbfe1 | 588 | scm_raprin1 (exp, port, pstate); |
0f2d19dd JB |
589 | break; |
590 | case scm_tcs_subrs: | |
9de33deb MD |
591 | scm_puts (SCM_SUBR_GENERIC (exp) && *SCM_SUBR_GENERIC (exp) |
592 | ? "#<primitive-generic " | |
593 | : "#<primitive-procedure ", | |
594 | port); | |
b7f3516f TT |
595 | scm_puts (SCM_CHARS (SCM_SNAME (exp)), port); |
596 | scm_putc ('>', port); | |
0f2d19dd JB |
597 | break; |
598 | #ifdef CCLO | |
599 | case scm_tc7_cclo: | |
56977059 MD |
600 | { |
601 | SCM proc = SCM_CCLO_SUBR (exp); | |
602 | if (proc == scm_f_gsubr_apply) | |
603 | { | |
604 | /* Print gsubrs as primitives */ | |
c180dfd3 | 605 | SCM name = scm_procedure_name (exp); |
56977059 MD |
606 | scm_puts ("#<primitive-procedure", port); |
607 | if (SCM_NFALSEP (name)) | |
608 | { | |
609 | scm_putc (' ', port); | |
610 | scm_puts (SCM_CHARS (name), port); | |
611 | } | |
612 | } | |
613 | else | |
614 | { | |
615 | scm_puts ("#<compiled-closure ", port); | |
616 | scm_iprin1 (proc, port, pstate); | |
617 | } | |
618 | scm_putc ('>', port); | |
619 | } | |
0f2d19dd JB |
620 | break; |
621 | #endif | |
c180dfd3 MD |
622 | case scm_tc7_pws: |
623 | scm_puts ("#<procedure-with-setter", port); | |
624 | { | |
625 | SCM name = scm_procedure_name (exp); | |
626 | if (SCM_NFALSEP (name)) | |
627 | { | |
628 | scm_putc (' ', port); | |
629 | scm_puts (SCM_ROCHARS (name), port); | |
630 | } | |
631 | } | |
632 | scm_putc ('>', port); | |
633 | break; | |
0f2d19dd | 634 | case scm_tc7_contin: |
b7f3516f | 635 | scm_puts ("#<continuation ", port); |
0f2d19dd | 636 | scm_intprint (SCM_LENGTH (exp), 10, port); |
b7f3516f | 637 | scm_puts (" @ ", port); |
0f2d19dd | 638 | scm_intprint ((long) SCM_CHARS (exp), 16, port); |
b7f3516f | 639 | scm_putc ('>', port); |
0f2d19dd JB |
640 | break; |
641 | case scm_tc7_port: | |
5ca6dc39 JB |
642 | { |
643 | register long i = SCM_PTOBNUM (exp); | |
644 | if (i < scm_numptob | |
645 | && scm_ptobs[i].print | |
646 | && (scm_ptobs[i].print) (exp, port, pstate)) | |
a51ea417 | 647 | break; |
5ca6dc39 JB |
648 | goto punk; |
649 | } | |
650 | case scm_tc7_smob: | |
651 | { | |
652 | register long i; | |
653 | ENTER_NESTED_DATA (pstate, exp, circref); | |
654 | i = SCM_SMOBNUM (exp); | |
655 | if (i < scm_numsmob && scm_smobs[i].print | |
656 | && (scm_smobs[i].print) (exp, port, pstate)) | |
657 | { | |
658 | EXIT_NESTED_DATA (pstate); | |
659 | break; | |
660 | } | |
661 | EXIT_NESTED_DATA (pstate); | |
662 | /* Macros have their print field set to NULL. They are | |
663 | handled at the same place as closures in order to achieve | |
664 | non-redundancy. Placing the condition here won't slow | |
665 | down printing of other smobs. */ | |
666 | if (SCM_TYP16 (exp) == scm_tc16_macro) | |
667 | goto macros; | |
668 | } | |
0f2d19dd | 669 | default: |
a51ea417 MD |
670 | punk: |
671 | scm_ipruk ("type", exp, port); | |
0f2d19dd JB |
672 | } |
673 | } | |
674 | } | |
675 | ||
c62fbfe1 MD |
676 | /* Print states are necessary for circular reference safe printing. |
677 | * They are also expensive to allocate. Therefore print states are | |
678 | * kept in a pool so that they can be reused. | |
679 | */ | |
1cc91f1b | 680 | |
bb35f315 MV |
681 | /* The PORT argument can also be a print-state/port pair, which will |
682 | * then be used instead of allocating a new print state. This is | |
683 | * useful for continuing a chain of print calls from Scheme. */ | |
684 | ||
a51ea417 | 685 | void |
c62fbfe1 | 686 | scm_prin1 (exp, port, writingp) |
a51ea417 MD |
687 | SCM exp; |
688 | SCM port; | |
c62fbfe1 | 689 | int writingp; |
a51ea417 | 690 | { |
c4f37e80 MV |
691 | SCM handle = SCM_BOOL_F; /* Will GC protect the handle whilst unlinked */ |
692 | SCM pstate_scm; | |
c62fbfe1 MD |
693 | scm_print_state *pstate; |
694 | ||
bb35f315 MV |
695 | /* If PORT is a print-state/port pair, use that. Else create a new |
696 | print-state. */ | |
c4f37e80 | 697 | |
52235e71 | 698 | if (SCM_NIMP (port) && SCM_PORT_WITH_PS_P (port)) |
bb35f315 | 699 | { |
52235e71 MD |
700 | pstate_scm = SCM_PORT_WITH_PS_PS (port); |
701 | port = SCM_PORT_WITH_PS_PORT (port); | |
bb35f315 MV |
702 | } |
703 | else | |
c62fbfe1 | 704 | { |
c4f37e80 MV |
705 | /* First try to allocate a print state from the pool */ |
706 | SCM_DEFER_INTS; | |
707 | if (SCM_NNULLP (SCM_CDR (print_state_pool))) | |
708 | { | |
709 | handle = SCM_CDR (print_state_pool); | |
710 | SCM_SETCDR (print_state_pool, SCM_CDDR (print_state_pool)); | |
711 | } | |
712 | SCM_ALLOW_INTS; | |
713 | if (handle == SCM_BOOL_F) | |
714 | handle = scm_cons (make_print_state (), SCM_EOL); | |
715 | pstate_scm = SCM_CAR (handle); | |
c62fbfe1 | 716 | } |
c62fbfe1 | 717 | |
c4f37e80 | 718 | pstate = SCM_PRINT_STATE (pstate_scm); |
c62fbfe1 MD |
719 | pstate->writingp = writingp; |
720 | scm_iprin1 (exp, port, pstate); | |
721 | ||
bb35f315 MV |
722 | /* Return print state to pool if it has been created above and |
723 | hasn't escaped to Scheme. */ | |
724 | ||
725 | if (handle != SCM_BOOL_F && !pstate->revealed) | |
c4f37e80 MV |
726 | { |
727 | SCM_DEFER_INTS; | |
728 | SCM_SETCDR (handle, SCM_CDR (print_state_pool)); | |
729 | SCM_SETCDR (print_state_pool, handle); | |
730 | SCM_ALLOW_INTS; | |
731 | } | |
a51ea417 MD |
732 | } |
733 | ||
0f2d19dd JB |
734 | |
735 | /* Print an integer. | |
736 | */ | |
1cc91f1b | 737 | |
0f2d19dd JB |
738 | void |
739 | scm_intprint (n, radix, port) | |
740 | long n; | |
741 | int radix; | |
742 | SCM port; | |
0f2d19dd JB |
743 | { |
744 | char num_buf[SCM_INTBUFLEN]; | |
b7f3516f | 745 | scm_lfwrite (num_buf, scm_iint2str (n, radix, num_buf), port); |
0f2d19dd JB |
746 | } |
747 | ||
748 | /* Print an object of unrecognized type. | |
749 | */ | |
1cc91f1b | 750 | |
0f2d19dd JB |
751 | void |
752 | scm_ipruk (hdr, ptr, port) | |
753 | char *hdr; | |
754 | SCM ptr; | |
755 | SCM port; | |
0f2d19dd | 756 | { |
b7f3516f TT |
757 | scm_puts ("#<unknown-", port); |
758 | scm_puts (hdr, port); | |
0f2d19dd JB |
759 | if (SCM_CELLP (ptr)) |
760 | { | |
b7f3516f | 761 | scm_puts (" (0x", port); |
0f2d19dd | 762 | scm_intprint (SCM_CAR (ptr), 16, port); |
b7f3516f | 763 | scm_puts (" . 0x", port); |
0f2d19dd | 764 | scm_intprint (SCM_CDR (ptr), 16, port); |
b7f3516f | 765 | scm_puts (") @", port); |
0f2d19dd | 766 | } |
b7f3516f | 767 | scm_puts (" 0x", port); |
0f2d19dd | 768 | scm_intprint (ptr, 16, port); |
b7f3516f | 769 | scm_putc ('>', port); |
0f2d19dd JB |
770 | } |
771 | ||
772 | /* Print a list. | |
773 | */ | |
a51ea417 | 774 | |
1cc91f1b | 775 | |
0f2d19dd | 776 | void |
c62fbfe1 | 777 | scm_iprlist (hdr, exp, tlr, port, pstate) |
0f2d19dd JB |
778 | char *hdr; |
779 | SCM exp; | |
805df3e8 | 780 | int tlr; |
0f2d19dd | 781 | SCM port; |
c62fbfe1 | 782 | 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 | ||
0f2d19dd | 895 | SCM_PROC(s_write, "write", 1, 1, 0, scm_write); |
1cc91f1b | 896 | |
0f2d19dd JB |
897 | SCM |
898 | scm_write (obj, port) | |
899 | SCM obj; | |
900 | SCM port; | |
0f2d19dd JB |
901 | { |
902 | if (SCM_UNBNDP (port)) | |
903 | port = scm_cur_outp; | |
904 | else | |
bb35f315 MV |
905 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG2, s_write); |
906 | ||
a51ea417 | 907 | scm_prin1 (obj, port, 1); |
0f2d19dd JB |
908 | #ifdef HAVE_PIPE |
909 | # ifdef EPIPE | |
910 | if (EPIPE == errno) | |
911 | scm_close_port (port); | |
912 | # endif | |
913 | #endif | |
914 | return SCM_UNSPECIFIED; | |
915 | } | |
916 | ||
917 | ||
918 | SCM_PROC(s_display, "display", 1, 1, 0, scm_display); | |
1cc91f1b | 919 | |
0f2d19dd JB |
920 | SCM |
921 | scm_display (obj, port) | |
922 | SCM obj; | |
923 | SCM port; | |
0f2d19dd JB |
924 | { |
925 | if (SCM_UNBNDP (port)) | |
926 | port = scm_cur_outp; | |
927 | else | |
bb35f315 MV |
928 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG2, s_display); |
929 | ||
a51ea417 | 930 | scm_prin1 (obj, port, 0); |
0f2d19dd JB |
931 | #ifdef HAVE_PIPE |
932 | # ifdef EPIPE | |
933 | if (EPIPE == errno) | |
934 | scm_close_port (port); | |
935 | # endif | |
936 | #endif | |
937 | return SCM_UNSPECIFIED; | |
938 | } | |
939 | ||
940 | SCM_PROC(s_newline, "newline", 0, 1, 0, scm_newline); | |
1cc91f1b | 941 | |
0f2d19dd JB |
942 | SCM |
943 | scm_newline (port) | |
944 | SCM port; | |
0f2d19dd JB |
945 | { |
946 | if (SCM_UNBNDP (port)) | |
bb35f315 | 947 | port = scm_cur_outp; |
0f2d19dd | 948 | else |
bb35f315 MV |
949 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG1, s_newline); |
950 | ||
0ef4ae82 | 951 | scm_putc ('\n', SCM_COERCE_OUTPORT (port)); |
0f2d19dd JB |
952 | return SCM_UNSPECIFIED; |
953 | } | |
954 | ||
955 | SCM_PROC(s_write_char, "write-char", 1, 1, 0, scm_write_char); | |
1cc91f1b | 956 | |
0f2d19dd JB |
957 | SCM |
958 | scm_write_char (chr, port) | |
959 | SCM chr; | |
960 | SCM port; | |
0f2d19dd JB |
961 | { |
962 | if (SCM_UNBNDP (port)) | |
bb35f315 | 963 | port = scm_cur_outp; |
0f2d19dd | 964 | else |
bb35f315 MV |
965 | SCM_ASSERT (scm_valid_oport_value_p (port), port, SCM_ARG2, s_write_char); |
966 | ||
0f2d19dd | 967 | SCM_ASSERT (SCM_ICHRP (chr), chr, SCM_ARG1, s_write_char); |
0ef4ae82 | 968 | scm_putc ((int) SCM_ICHR (chr), SCM_COERCE_OUTPORT (port)); |
0f2d19dd JB |
969 | #ifdef HAVE_PIPE |
970 | # ifdef EPIPE | |
971 | if (EPIPE == errno) | |
972 | scm_close_port (port); | |
973 | # endif | |
974 | #endif | |
975 | return SCM_UNSPECIFIED; | |
976 | } | |
977 | ||
0f2d19dd JB |
978 | \f |
979 | ||
bb35f315 | 980 | /* Call back to Scheme code to do the printing of special objects |
c19bc088 MD |
981 | * (like structs). SCM_PRINTER_APPLY applies PROC to EXP and a smob |
982 | * containing PORT and PSTATE. This object can be used as the port for | |
983 | * display/write etc to continue the current print chain. The REVEALED | |
984 | * field of PSTATE is set to true to indicate that the print state has | |
985 | * escaped to Scheme and thus has to be freed by the GC. | |
986 | */ | |
987 | ||
988 | long scm_tc16_port_with_ps; | |
989 | ||
990 | /* Print exactly as the port itself would */ | |
991 | ||
992 | static int | |
993 | print_port_with_ps (SCM obj, SCM port, scm_print_state *pstate) | |
994 | { | |
995 | obj = SCM_PORT_WITH_PS_PORT (obj); | |
996 | return scm_ptobs[SCM_PTOBNUM (obj)].print (obj, port, pstate); | |
997 | } | |
c4f37e80 MV |
998 | |
999 | SCM | |
1000 | scm_printer_apply (proc, exp, port, pstate) | |
1001 | SCM proc, exp, port; | |
1002 | scm_print_state *pstate; | |
1003 | { | |
c19bc088 | 1004 | SCM pwps; |
bb35f315 | 1005 | SCM pair = scm_cons (port, pstate->handle); |
c19bc088 | 1006 | SCM_NEWSMOB (pwps, scm_tc16_port_with_ps, pair); |
bb35f315 | 1007 | pstate->revealed = 1; |
c19bc088 MD |
1008 | return scm_apply (proc, exp, scm_cons (pwps, scm_listofnull)); |
1009 | } | |
1010 | ||
1011 | SCM_PROC (s_port_with_print_state, "port-with-print-state", 2, 0, 0, scm_port_with_print_state); | |
1012 | ||
1013 | SCM | |
1014 | scm_port_with_print_state (SCM port, SCM pstate) | |
1015 | { | |
1016 | SCM pwps; | |
1017 | SCM_ASSERT (scm_valid_oport_value_p (port), | |
1018 | port, SCM_ARG1, s_port_with_print_state); | |
1019 | SCM_ASSERT (SCM_NIMP (pstate) && SCM_PRINT_STATE_P (pstate), | |
1020 | pstate, SCM_ARG2, s_port_with_print_state); | |
1021 | port = SCM_COERCE_OUTPORT (port); | |
1022 | SCM_NEWSMOB (pwps, scm_tc16_port_with_ps, scm_cons (port, pstate)); | |
1023 | return pwps; | |
1024 | } | |
1025 | ||
1026 | SCM_PROC (s_get_print_state, "get-print-state", 1, 0, 0, scm_get_print_state); | |
1027 | ||
1028 | SCM | |
1029 | scm_get_print_state (SCM port) | |
1030 | { | |
1031 | if (SCM_NIMP (port)) | |
1032 | { | |
1033 | if (SCM_PORT_WITH_PS_P (port)) | |
1034 | return SCM_PORT_WITH_PS_PS (port); | |
1035 | if (SCM_OUTPORTP (port)) | |
1036 | return SCM_BOOL_F; | |
1037 | } | |
1038 | return scm_wta (port, (char *) SCM_ARG1, s_get_print_state); | |
c4f37e80 | 1039 | } |
bb35f315 | 1040 | |
c4f37e80 | 1041 | \f |
1cc91f1b | 1042 | |
0f2d19dd JB |
1043 | void |
1044 | scm_init_print () | |
0f2d19dd | 1045 | { |
c19bc088 | 1046 | SCM vtable, layout, type; |
4bfdf158 | 1047 | |
b7ff98dd | 1048 | scm_init_opts (scm_print_options, scm_print_opts, SCM_N_PRINT_OPTIONS); |
4bfdf158 MD |
1049 | vtable = scm_make_vtable_vtable (scm_make_struct_layout (scm_nullstr), |
1050 | SCM_INUM0, | |
1051 | SCM_EOL); | |
1052 | layout = scm_make_struct_layout (scm_makfrom0str (SCM_PRINT_STATE_LAYOUT)); | |
c19bc088 | 1053 | type = scm_make_struct (vtable, SCM_INUM0, SCM_LIST1 (layout)); |
e9cd0e47 | 1054 | scm_set_struct_vtable_name_x (type, SCM_CAR (scm_intern0 ("print-state"))); |
c62fbfe1 | 1055 | print_state_pool = scm_permanent_object (scm_cons (type, SCM_EOL)); |
c4f37e80 | 1056 | |
bb35f315 | 1057 | scm_print_state_vtable = type; |
c4f37e80 | 1058 | |
c19bc088 MD |
1059 | /* Don't want to bind a wrapper class in GOOPS, so pass 0 as arg1. */ |
1060 | scm_tc16_port_with_ps = scm_make_smob_type (0, 0); | |
1061 | scm_set_smob_mark (scm_tc16_port_with_ps, scm_markcdr); | |
1062 | scm_set_smob_print (scm_tc16_port_with_ps, print_port_with_ps); | |
1063 | ||
0f2d19dd JB |
1064 | #include "print.x" |
1065 | } |