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8322 nl: misleading-indentation
[unleashed/tickless.git] / usr / src / cmd / mandoc / mdoc_man.c
blobab245313492a452f3056a6ed262bc672079f3ed2
1 /* $Id: mdoc_man.c,v 1.96 2016/01/08 17:48:09 schwarze Exp $ */
2 /*
3 * Copyright (c) 2011-2016 Ingo Schwarze <schwarze@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17 #include "config.h"
18
19 #include <sys/types.h>
20
21 #include <assert.h>
22 #include <stdio.h>
23 #include <string.h>
24
25 #include "mandoc_aux.h"
26 #include "mandoc.h"
27 #include "roff.h"
28 #include "mdoc.h"
29 #include "man.h"
30 #include "out.h"
31 #include "main.h"
32
33 #define DECL_ARGS const struct roff_meta *meta, struct roff_node *n
34
35 struct manact {
36 int (*cond)(DECL_ARGS); /* DON'T run actions */
37 int (*pre)(DECL_ARGS); /* pre-node action */
38 void (*post)(DECL_ARGS); /* post-node action */
39 const char *prefix; /* pre-node string constant */
40 const char *suffix; /* post-node string constant */
41 };
42
43 static int cond_body(DECL_ARGS);
44 static int cond_head(DECL_ARGS);
45 static void font_push(char);
46 static void font_pop(void);
47 static void mid_it(void);
48 static void post__t(DECL_ARGS);
49 static void post_aq(DECL_ARGS);
50 static void post_bd(DECL_ARGS);
51 static void post_bf(DECL_ARGS);
52 static void post_bk(DECL_ARGS);
53 static void post_bl(DECL_ARGS);
54 static void post_dl(DECL_ARGS);
55 static void post_en(DECL_ARGS);
56 static void post_enc(DECL_ARGS);
57 static void post_eo(DECL_ARGS);
58 static void post_fa(DECL_ARGS);
59 static void post_fd(DECL_ARGS);
60 static void post_fl(DECL_ARGS);
61 static void post_fn(DECL_ARGS);
62 static void post_fo(DECL_ARGS);
63 static void post_font(DECL_ARGS);
64 static void post_in(DECL_ARGS);
65 static void post_it(DECL_ARGS);
66 static void post_lb(DECL_ARGS);
67 static void post_nm(DECL_ARGS);
68 static void post_percent(DECL_ARGS);
69 static void post_pf(DECL_ARGS);
70 static void post_sect(DECL_ARGS);
71 static void post_sp(DECL_ARGS);
72 static void post_vt(DECL_ARGS);
73 static int pre__t(DECL_ARGS);
74 static int pre_an(DECL_ARGS);
75 static int pre_ap(DECL_ARGS);
76 static int pre_aq(DECL_ARGS);
77 static int pre_bd(DECL_ARGS);
78 static int pre_bf(DECL_ARGS);
79 static int pre_bk(DECL_ARGS);
80 static int pre_bl(DECL_ARGS);
81 static int pre_br(DECL_ARGS);
82 static int pre_bx(DECL_ARGS);
83 static int pre_dl(DECL_ARGS);
84 static int pre_en(DECL_ARGS);
85 static int pre_enc(DECL_ARGS);
86 static int pre_em(DECL_ARGS);
87 static int pre_skip(DECL_ARGS);
88 static int pre_eo(DECL_ARGS);
89 static int pre_ex(DECL_ARGS);
90 static int pre_fa(DECL_ARGS);
91 static int pre_fd(DECL_ARGS);
92 static int pre_fl(DECL_ARGS);
93 static int pre_fn(DECL_ARGS);
94 static int pre_fo(DECL_ARGS);
95 static int pre_ft(DECL_ARGS);
96 static int pre_in(DECL_ARGS);
97 static int pre_it(DECL_ARGS);
98 static int pre_lk(DECL_ARGS);
99 static int pre_li(DECL_ARGS);
100 static int pre_ll(DECL_ARGS);
101 static int pre_nm(DECL_ARGS);
102 static int pre_no(DECL_ARGS);
103 static int pre_ns(DECL_ARGS);
104 static int pre_pp(DECL_ARGS);
105 static int pre_rs(DECL_ARGS);
106 static int pre_rv(DECL_ARGS);
107 static int pre_sm(DECL_ARGS);
108 static int pre_sp(DECL_ARGS);
109 static int pre_sect(DECL_ARGS);
110 static int pre_sy(DECL_ARGS);
111 static void pre_syn(const struct roff_node *);
112 static int pre_vt(DECL_ARGS);
113 static int pre_ux(DECL_ARGS);
114 static int pre_xr(DECL_ARGS);
115 static void print_word(const char *);
116 static void print_line(const char *, int);
117 static void print_block(const char *, int);
118 static void print_offs(const char *, int);
119 static void print_width(const struct mdoc_bl *,
120 const struct roff_node *);
121 static void print_count(int *);
122 static void print_node(DECL_ARGS);
123
124 static const struct manact manacts[MDOC_MAX + 1] = {
125 { NULL, pre_ap, NULL, NULL, NULL }, /* Ap */
126 { NULL, NULL, NULL, NULL, NULL }, /* Dd */
127 { NULL, NULL, NULL, NULL, NULL }, /* Dt */
128 { NULL, NULL, NULL, NULL, NULL }, /* Os */
129 { NULL, pre_sect, post_sect, ".SH", NULL }, /* Sh */
130 { NULL, pre_sect, post_sect, ".SS", NULL }, /* Ss */
131 { NULL, pre_pp, NULL, NULL, NULL }, /* Pp */
132 { cond_body, pre_dl, post_dl, NULL, NULL }, /* D1 */
133 { cond_body, pre_dl, post_dl, NULL, NULL }, /* Dl */
134 { cond_body, pre_bd, post_bd, NULL, NULL }, /* Bd */
135 { NULL, NULL, NULL, NULL, NULL }, /* Ed */
136 { cond_body, pre_bl, post_bl, NULL, NULL }, /* Bl */
137 { NULL, NULL, NULL, NULL, NULL }, /* El */
138 { NULL, pre_it, post_it, NULL, NULL }, /* It */
139 { NULL, pre_em, post_font, NULL, NULL }, /* Ad */
140 { NULL, pre_an, NULL, NULL, NULL }, /* An */
141 { NULL, pre_em, post_font, NULL, NULL }, /* Ar */
142 { NULL, pre_sy, post_font, NULL, NULL }, /* Cd */
143 { NULL, pre_sy, post_font, NULL, NULL }, /* Cm */
144 { NULL, pre_li, post_font, NULL, NULL }, /* Dv */
145 { NULL, pre_li, post_font, NULL, NULL }, /* Er */
146 { NULL, pre_li, post_font, NULL, NULL }, /* Ev */
147 { NULL, pre_ex, NULL, NULL, NULL }, /* Ex */
148 { NULL, pre_fa, post_fa, NULL, NULL }, /* Fa */
149 { NULL, pre_fd, post_fd, NULL, NULL }, /* Fd */
150 { NULL, pre_fl, post_fl, NULL, NULL }, /* Fl */
151 { NULL, pre_fn, post_fn, NULL, NULL }, /* Fn */
152 { NULL, pre_ft, post_font, NULL, NULL }, /* Ft */
153 { NULL, pre_sy, post_font, NULL, NULL }, /* Ic */
154 { NULL, pre_in, post_in, NULL, NULL }, /* In */
155 { NULL, pre_li, post_font, NULL, NULL }, /* Li */
156 { cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */
157 { NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */
158 { cond_body, pre_enc, post_enc, "[", "]" }, /* Op */
159 { NULL, pre_ft, post_font, NULL, NULL }, /* Ot */
160 { NULL, pre_em, post_font, NULL, NULL }, /* Pa */
161 { NULL, pre_rv, NULL, NULL, NULL }, /* Rv */
162 { NULL, NULL, NULL, NULL, NULL }, /* St */
163 { NULL, pre_em, post_font, NULL, NULL }, /* Va */
164 { NULL, pre_vt, post_vt, NULL, NULL }, /* Vt */
165 { NULL, pre_xr, NULL, NULL, NULL }, /* Xr */
166 { NULL, NULL, post_percent, NULL, NULL }, /* %A */
167 { NULL, pre_em, post_percent, NULL, NULL }, /* %B */
168 { NULL, NULL, post_percent, NULL, NULL }, /* %D */
169 { NULL, pre_em, post_percent, NULL, NULL }, /* %I */
170 { NULL, pre_em, post_percent, NULL, NULL }, /* %J */
171 { NULL, NULL, post_percent, NULL, NULL }, /* %N */
172 { NULL, NULL, post_percent, NULL, NULL }, /* %O */
173 { NULL, NULL, post_percent, NULL, NULL }, /* %P */
174 { NULL, NULL, post_percent, NULL, NULL }, /* %R */
175 { NULL, pre__t, post__t, NULL, NULL }, /* %T */
176 { NULL, NULL, post_percent, NULL, NULL }, /* %V */
177 { NULL, NULL, NULL, NULL, NULL }, /* Ac */
178 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Ao */
179 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Aq */
180 { NULL, NULL, NULL, NULL, NULL }, /* At */
181 { NULL, NULL, NULL, NULL, NULL }, /* Bc */
182 { NULL, pre_bf, post_bf, NULL, NULL }, /* Bf */
183 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bo */
184 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bq */
185 { NULL, pre_ux, NULL, "BSD/OS", NULL }, /* Bsx */
186 { NULL, pre_bx, NULL, NULL, NULL }, /* Bx */
187 { NULL, pre_skip, NULL, NULL, NULL }, /* Db */
188 { NULL, NULL, NULL, NULL, NULL }, /* Dc */
189 { cond_body, pre_enc, post_enc, "\\(Lq", "\\(Rq" }, /* Do */
190 { cond_body, pre_enc, post_enc, "\\(Lq", "\\(Rq" }, /* Dq */
191 { NULL, NULL, NULL, NULL, NULL }, /* Ec */
192 { NULL, NULL, NULL, NULL, NULL }, /* Ef */
193 { NULL, pre_em, post_font, NULL, NULL }, /* Em */
194 { cond_body, pre_eo, post_eo, NULL, NULL }, /* Eo */
195 { NULL, pre_ux, NULL, "FreeBSD", NULL }, /* Fx */
196 { NULL, pre_sy, post_font, NULL, NULL }, /* Ms */
197 { NULL, pre_no, NULL, NULL, NULL }, /* No */
198 { NULL, pre_ns, NULL, NULL, NULL }, /* Ns */
199 { NULL, pre_ux, NULL, "NetBSD", NULL }, /* Nx */
200 { NULL, pre_ux, NULL, "OpenBSD", NULL }, /* Ox */
201 { NULL, NULL, NULL, NULL, NULL }, /* Pc */
202 { NULL, NULL, post_pf, NULL, NULL }, /* Pf */
203 { cond_body, pre_enc, post_enc, "(", ")" }, /* Po */
204 { cond_body, pre_enc, post_enc, "(", ")" }, /* Pq */
205 { NULL, NULL, NULL, NULL, NULL }, /* Qc */
206 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Ql */
207 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qo */
208 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qq */
209 { NULL, NULL, NULL, NULL, NULL }, /* Re */
210 { cond_body, pre_rs, NULL, NULL, NULL }, /* Rs */
211 { NULL, NULL, NULL, NULL, NULL }, /* Sc */
212 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* So */
213 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Sq */
214 { NULL, pre_sm, NULL, NULL, NULL }, /* Sm */
215 { NULL, pre_em, post_font, NULL, NULL }, /* Sx */
216 { NULL, pre_sy, post_font, NULL, NULL }, /* Sy */
217 { NULL, pre_li, post_font, NULL, NULL }, /* Tn */
218 { NULL, pre_ux, NULL, "UNIX", NULL }, /* Ux */
219 { NULL, NULL, NULL, NULL, NULL }, /* Xc */
220 { NULL, NULL, NULL, NULL, NULL }, /* Xo */
221 { NULL, pre_fo, post_fo, NULL, NULL }, /* Fo */
222 { NULL, NULL, NULL, NULL, NULL }, /* Fc */
223 { cond_body, pre_enc, post_enc, "[", "]" }, /* Oo */
224 { NULL, NULL, NULL, NULL, NULL }, /* Oc */
225 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bk */
226 { NULL, NULL, NULL, NULL, NULL }, /* Ek */
227 { NULL, pre_ux, NULL, "is currently in beta test.", NULL }, /* Bt */
228 { NULL, NULL, NULL, NULL, NULL }, /* Hf */
229 { NULL, pre_em, post_font, NULL, NULL }, /* Fr */
230 { NULL, pre_ux, NULL, "currently under development.", NULL }, /* Ud */
231 { NULL, NULL, post_lb, NULL, NULL }, /* Lb */
232 { NULL, pre_pp, NULL, NULL, NULL }, /* Lp */
233 { NULL, pre_lk, NULL, NULL, NULL }, /* Lk */
234 { NULL, pre_em, post_font, NULL, NULL }, /* Mt */
235 { cond_body, pre_enc, post_enc, "{", "}" }, /* Brq */
236 { cond_body, pre_enc, post_enc, "{", "}" }, /* Bro */
237 { NULL, NULL, NULL, NULL, NULL }, /* Brc */
238 { NULL, NULL, post_percent, NULL, NULL }, /* %C */
239 { NULL, pre_skip, NULL, NULL, NULL }, /* Es */
240 { cond_body, pre_en, post_en, NULL, NULL }, /* En */
241 { NULL, pre_ux, NULL, "DragonFly", NULL }, /* Dx */
242 { NULL, NULL, post_percent, NULL, NULL }, /* %Q */
243 { NULL, pre_br, NULL, NULL, NULL }, /* br */
244 { NULL, pre_sp, post_sp, NULL, NULL }, /* sp */
245 { NULL, NULL, post_percent, NULL, NULL }, /* %U */
246 { NULL, NULL, NULL, NULL, NULL }, /* Ta */
247 { NULL, pre_ll, post_sp, NULL, NULL }, /* ll */
248 { NULL, NULL, NULL, NULL, NULL }, /* ROOT */
249 };
250
251 static int outflags;
252 #define MMAN_spc (1 << 0) /* blank character before next word */
253 #define MMAN_spc_force (1 << 1) /* even before trailing punctuation */
254 #define MMAN_nl (1 << 2) /* break man(7) code line */
255 #define MMAN_br (1 << 3) /* break output line */
256 #define MMAN_sp (1 << 4) /* insert a blank output line */
257 #define MMAN_PP (1 << 5) /* reset indentation etc. */
258 #define MMAN_Sm (1 << 6) /* horizontal spacing mode */
259 #define MMAN_Bk (1 << 7) /* word keep mode */
260 #define MMAN_Bk_susp (1 << 8) /* suspend this (after a macro) */
261 #define MMAN_An_split (1 << 9) /* author mode is "split" */
262 #define MMAN_An_nosplit (1 << 10) /* author mode is "nosplit" */
263 #define MMAN_PD (1 << 11) /* inter-paragraph spacing disabled */
264 #define MMAN_nbrword (1 << 12) /* do not break the next word */
265
266 #define BL_STACK_MAX 32
267
268 static int Bl_stack[BL_STACK_MAX]; /* offsets [chars] */
269 static int Bl_stack_post[BL_STACK_MAX]; /* add final .RE */
270 static int Bl_stack_len; /* number of nested Bl blocks */
271 static int TPremain; /* characters before tag is full */
272
273 static struct {
274 char *head;
275 char *tail;
276 size_t size;
277 } fontqueue;
278
279
280 static void
281 font_push(char newfont)
282 {
283
284 if (fontqueue.head + fontqueue.size <= ++fontqueue.tail) {
285 fontqueue.size += 8;
286 fontqueue.head = mandoc_realloc(fontqueue.head,
287 fontqueue.size);
288 }
289 *fontqueue.tail = newfont;
290 print_word("");
291 printf("\\f");
292 putchar(newfont);
293 outflags &= ~MMAN_spc;
294 }
295
296 static void
297 font_pop(void)
298 {
299
300 if (fontqueue.tail > fontqueue.head)
301 fontqueue.tail--;
302 outflags &= ~MMAN_spc;
303 print_word("");
304 printf("\\f");
305 putchar(*fontqueue.tail);
306 }
307
308 static void
309 print_word(const char *s)
310 {
311
312 if ((MMAN_PP | MMAN_sp | MMAN_br | MMAN_nl) & outflags) {
313 /*
314 * If we need a newline, print it now and start afresh.
315 */
316 if (MMAN_PP & outflags) {
317 if (MMAN_sp & outflags) {
318 if (MMAN_PD & outflags) {
319 printf("\n.PD");
320 outflags &= ~MMAN_PD;
321 }
322 } else if ( ! (MMAN_PD & outflags)) {
323 printf("\n.PD 0");
324 outflags |= MMAN_PD;
325 }
326 printf("\n.PP\n");
327 } else if (MMAN_sp & outflags)
328 printf("\n.sp\n");
329 else if (MMAN_br & outflags)
330 printf("\n.br\n");
331 else if (MMAN_nl & outflags)
332 putchar('\n');
333 outflags &= ~(MMAN_PP|MMAN_sp|MMAN_br|MMAN_nl|MMAN_spc);
334 if (1 == TPremain)
335 printf(".br\n");
336 TPremain = 0;
337 } else if (MMAN_spc & outflags) {
338 /*
339 * If we need a space, only print it if
340 * (1) it is forced by `No' or
341 * (2) what follows is not terminating punctuation or
342 * (3) what follows is longer than one character.
343 */
344 if (MMAN_spc_force & outflags || '\0' == s[0] ||
345 NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1]) {
346 if (MMAN_Bk & outflags &&
347 ! (MMAN_Bk_susp & outflags))
348 putchar('\\');
349 putchar(' ');
350 if (TPremain)
351 TPremain--;
352 }
353 }
354
355 /*
356 * Reassign needing space if we're not following opening
357 * punctuation.
358 */
359 if (MMAN_Sm & outflags && ('\0' == s[0] ||
360 (('(' != s[0] && '[' != s[0]) || '\0' != s[1])))
361 outflags |= MMAN_spc;
362 else
363 outflags &= ~MMAN_spc;
364 outflags &= ~(MMAN_spc_force | MMAN_Bk_susp);
365
366 for ( ; *s; s++) {
367 switch (*s) {
368 case ASCII_NBRSP:
369 printf("\\ ");
370 break;
371 case ASCII_HYPH:
372 putchar('-');
373 break;
374 case ASCII_BREAK:
375 printf("\\:");
376 break;
377 case ' ':
378 if (MMAN_nbrword & outflags) {
379 printf("\\ ");
380 break;
381 }
382 /* FALLTHROUGH */
383 default:
384 putchar((unsigned char)*s);
385 break;
386 }
387 if (TPremain)
388 TPremain--;
389 }
390 outflags &= ~MMAN_nbrword;
391 }
392
393 static void
394 print_line(const char *s, int newflags)
395 {
396
397 outflags &= ~MMAN_br;
398 outflags |= MMAN_nl;
399 print_word(s);
400 outflags |= newflags;
401 }
402
403 static void
404 print_block(const char *s, int newflags)
405 {
406
407 outflags &= ~MMAN_PP;
408 if (MMAN_sp & outflags) {
409 outflags &= ~(MMAN_sp | MMAN_br);
410 if (MMAN_PD & outflags) {
411 print_line(".PD", 0);
412 outflags &= ~MMAN_PD;
413 }
414 } else if (! (MMAN_PD & outflags))
415 print_line(".PD 0", MMAN_PD);
416 outflags |= MMAN_nl;
417 print_word(s);
418 outflags |= MMAN_Bk_susp | newflags;
419 }
420
421 static void
422 print_offs(const char *v, int keywords)
423 {
424 char buf[24];
425 struct roffsu su;
426 int sz;
427
428 print_line(".RS", MMAN_Bk_susp);
429
430 /* Convert v into a number (of characters). */
431 if (NULL == v || '\0' == *v || (keywords && !strcmp(v, "left")))
432 sz = 0;
433 else if (keywords && !strcmp(v, "indent"))
434 sz = 6;
435 else if (keywords && !strcmp(v, "indent-two"))
436 sz = 12;
437 else if (a2roffsu(v, &su, SCALE_EN) > 1) {
438 if (SCALE_EN == su.unit)
439 sz = su.scale;
440 else {
441 /*
442 * XXX
443 * If we are inside an enclosing list,
444 * there is no easy way to add the two
445 * indentations because they are provided
446 * in terms of different units.
447 */
448 print_word(v);
449 outflags |= MMAN_nl;
450 return;
451 }
452 } else
453 sz = strlen(v);
454
455 /*
456 * We are inside an enclosing list.
457 * Add the two indentations.
458 */
459 if (Bl_stack_len)
460 sz += Bl_stack[Bl_stack_len - 1];
461
462 (void)snprintf(buf, sizeof(buf), "%dn", sz);
463 print_word(buf);
464 outflags |= MMAN_nl;
465 }
466
467 /*
468 * Set up the indentation for a list item; used from pre_it().
469 */
470 static void
471 print_width(const struct mdoc_bl *bl, const struct roff_node *child)
472 {
473 char buf[24];
474 struct roffsu su;
475 int numeric, remain, sz, chsz;
476
477 numeric = 1;
478 remain = 0;
479
480 /* Convert the width into a number (of characters). */
481 if (bl->width == NULL)
482 sz = (bl->type == LIST_hang) ? 6 : 0;
483 else if (a2roffsu(bl->width, &su, SCALE_MAX) > 1) {
484 if (SCALE_EN == su.unit)
485 sz = su.scale;
486 else {
487 sz = 0;
488 numeric = 0;
489 }
490 } else
491 sz = strlen(bl->width);
492
493 /* XXX Rough estimation, might have multiple parts. */
494 if (bl->type == LIST_enum)
495 chsz = (bl->count > 8) + 1;
496 else if (child != NULL && child->type == ROFFT_TEXT)
497 chsz = strlen(child->string);
498 else
499 chsz = 0;
500
501 /* Maybe we are inside an enclosing list? */
502 mid_it();
503
504 /*
505 * Save our own indentation,
506 * such that child lists can use it.
507 */
508 Bl_stack[Bl_stack_len++] = sz + 2;
509
510 /* Set up the current list. */
511 if (chsz > sz && bl->type != LIST_tag)
512 print_block(".HP", 0);
513 else {
514 print_block(".TP", 0);
515 remain = sz + 2;
516 }
517 if (numeric) {
518 (void)snprintf(buf, sizeof(buf), "%dn", sz + 2);
519 print_word(buf);
520 } else
521 print_word(bl->width);
522 TPremain = remain;
523 }
524
525 static void
526 print_count(int *count)
527 {
528 char buf[24];
529
530 (void)snprintf(buf, sizeof(buf), "%d.\\&", ++*count);
531 print_word(buf);
532 }
533
534 void
535 man_man(void *arg, const struct roff_man *man)
536 {
537
538 /*
539 * Dump the keep buffer.
540 * We're guaranteed by now that this exists (is non-NULL).
541 * Flush stdout afterward, just in case.
542 */
543 fputs(mparse_getkeep(man_mparse(man)), stdout);
544 fflush(stdout);
545 }
546
547 void
548 man_mdoc(void *arg, const struct roff_man *mdoc)
549 {
550 struct roff_node *n;
551
552 printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"\n",
553 mdoc->meta.title,
554 (mdoc->meta.msec == NULL ? "" : mdoc->meta.msec),
555 mdoc->meta.date, mdoc->meta.os, mdoc->meta.vol);
556
557 /* Disable hyphenation and if nroff, disable justification. */
558 printf(".nh\n.if n .ad l");
559
560 outflags = MMAN_nl | MMAN_Sm;
561 if (0 == fontqueue.size) {
562 fontqueue.size = 8;
563 fontqueue.head = fontqueue.tail = mandoc_malloc(8);
564 *fontqueue.tail = 'R';
565 }
566 for (n = mdoc->first->child; n != NULL; n = n->next)
567 print_node(&mdoc->meta, n);
568 putchar('\n');
569 }
570
571 static void
572 print_node(DECL_ARGS)
573 {
574 const struct manact *act;
575 struct roff_node *sub;
576 int cond, do_sub;
577
578 /*
579 * Break the line if we were parsed subsequent the current node.
580 * This makes the page structure be more consistent.
581 */
582 if (MMAN_spc & outflags && MDOC_LINE & n->flags)
583 outflags |= MMAN_nl;
584
585 act = NULL;
586 cond = 0;
587 do_sub = 1;
588 n->flags &= ~MDOC_ENDED;
589
590 if (n->type == ROFFT_TEXT) {
591 /*
592 * Make sure that we don't happen to start with a
593 * control character at the start of a line.
594 */
595 if (MMAN_nl & outflags &&
596 ('.' == *n->string || '\'' == *n->string)) {
597 print_word("");
598 printf("\\&");
599 outflags &= ~MMAN_spc;
600 }
601 if (outflags & MMAN_Sm && ! (n->flags & MDOC_DELIMC))
602 outflags |= MMAN_spc_force;
603 print_word(n->string);
604 if (outflags & MMAN_Sm && ! (n->flags & MDOC_DELIMO))
605 outflags |= MMAN_spc;
606 } else {
607 /*
608 * Conditionally run the pre-node action handler for a
609 * node.
610 */
611 act = manacts + n->tok;
612 cond = act->cond == NULL || (*act->cond)(meta, n);
613 if (cond && act->pre != NULL &&
614 (n->end == ENDBODY_NOT || n->child != NULL))
615 do_sub = (*act->pre)(meta, n);
616 }
617
618 /*
619 * Conditionally run all child nodes.
620 * Note that this iterates over children instead of using
621 * recursion. This prevents unnecessary depth in the stack.
622 */
623 if (do_sub)
624 for (sub = n->child; sub; sub = sub->next)
625 print_node(meta, sub);
626
627 /*
628 * Lastly, conditionally run the post-node handler.
629 */
630 if (MDOC_ENDED & n->flags)
631 return;
632
633 if (cond && act->post)
634 (*act->post)(meta, n);
635
636 if (ENDBODY_NOT != n->end)
637 n->body->flags |= MDOC_ENDED;
638
639 if (ENDBODY_NOSPACE == n->end)
640 outflags &= ~(MMAN_spc | MMAN_nl);
641 }
642
643 static int
644 cond_head(DECL_ARGS)
645 {
646
647 return n->type == ROFFT_HEAD;
648 }
649
650 static int
651 cond_body(DECL_ARGS)
652 {
653
654 return n->type == ROFFT_BODY;
655 }
656
657 static int
658 pre_enc(DECL_ARGS)
659 {
660 const char *prefix;
661
662 prefix = manacts[n->tok].prefix;
663 if (NULL == prefix)
664 return 1;
665 print_word(prefix);
666 outflags &= ~MMAN_spc;
667 return 1;
668 }
669
670 static void
671 post_enc(DECL_ARGS)
672 {
673 const char *suffix;
674
675 suffix = manacts[n->tok].suffix;
676 if (NULL == suffix)
677 return;
678 outflags &= ~(MMAN_spc | MMAN_nl);
679 print_word(suffix);
680 }
681
682 static int
683 pre_ex(DECL_ARGS)
684 {
685 struct roff_node *nch;
686
687 outflags |= MMAN_br | MMAN_nl;
688
689 print_word("The");
690
691 for (nch = n->child; nch != NULL; nch = nch->next) {
692 font_push('B');
693 print_word(nch->string);
694 font_pop();
695
696 if (nch->next == NULL)
697 continue;
698
699 if (nch->prev != NULL || nch->next->next != NULL) {
700 outflags &= ~MMAN_spc;
701 print_word(",");
702 }
703 if (nch->next->next == NULL)
704 print_word("and");
705 }
706
707 if (n->child != NULL && n->child->next != NULL)
708 print_word("utilities exit\\~0");
709 else
710 print_word("utility exits\\~0");
711
712 print_word("on success, and\\~>0 if an error occurs.");
713 outflags |= MMAN_nl;
714 return 0;
715 }
716
717 static void
718 post_font(DECL_ARGS)
719 {
720
721 font_pop();
722 }
723
724 static void
725 post_percent(DECL_ARGS)
726 {
727
728 if (pre_em == manacts[n->tok].pre)
729 font_pop();
730 if (n->next) {
731 print_word(",");
732 if (n->prev && n->prev->tok == n->tok &&
733 n->next->tok == n->tok)
734 print_word("and");
735 } else {
736 print_word(".");
737 outflags |= MMAN_nl;
738 }
739 }
740
741 static int
742 pre__t(DECL_ARGS)
743 {
744
745 if (n->parent && MDOC_Rs == n->parent->tok &&
746 n->parent->norm->Rs.quote_T) {
747 print_word("");
748 putchar('\"');
749 outflags &= ~MMAN_spc;
750 } else
751 font_push('I');
752 return 1;
753 }
754
755 static void
756 post__t(DECL_ARGS)
757 {
758
759 if (n->parent && MDOC_Rs == n->parent->tok &&
760 n->parent->norm->Rs.quote_T) {
761 outflags &= ~MMAN_spc;
762 print_word("");
763 putchar('\"');
764 } else
765 font_pop();
766 post_percent(meta, n);
767 }
768
769 /*
770 * Print before a section header.
771 */
772 static int
773 pre_sect(DECL_ARGS)
774 {
775
776 if (n->type == ROFFT_HEAD) {
777 outflags |= MMAN_sp;
778 print_block(manacts[n->tok].prefix, 0);
779 print_word("");
780 putchar('\"');
781 outflags &= ~MMAN_spc;
782 }
783 return 1;
784 }
785
786 /*
787 * Print subsequent a section header.
788 */
789 static void
790 post_sect(DECL_ARGS)
791 {
792
793 if (n->type != ROFFT_HEAD)
794 return;
795 outflags &= ~MMAN_spc;
796 print_word("");
797 putchar('\"');
798 outflags |= MMAN_nl;
799 if (MDOC_Sh == n->tok && SEC_AUTHORS == n->sec)
800 outflags &= ~(MMAN_An_split | MMAN_An_nosplit);
801 }
802
803 /* See mdoc_term.c, synopsis_pre() for comments. */
804 static void
805 pre_syn(const struct roff_node *n)
806 {
807
808 if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
809 return;
810
811 if (n->prev->tok == n->tok &&
812 MDOC_Ft != n->tok &&
813 MDOC_Fo != n->tok &&
814 MDOC_Fn != n->tok) {
815 outflags |= MMAN_br;
816 return;
817 }
818
819 switch (n->prev->tok) {
820 case MDOC_Fd:
821 case MDOC_Fn:
822 case MDOC_Fo:
823 case MDOC_In:
824 case MDOC_Vt:
825 outflags |= MMAN_sp;
826 break;
827 case MDOC_Ft:
828 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
829 outflags |= MMAN_sp;
830 break;
831 }
832 /* FALLTHROUGH */
833 default:
834 outflags |= MMAN_br;
835 break;
836 }
837 }
838
839 static int
840 pre_an(DECL_ARGS)
841 {
842
843 switch (n->norm->An.auth) {
844 case AUTH_split:
845 outflags &= ~MMAN_An_nosplit;
846 outflags |= MMAN_An_split;
847 return 0;
848 case AUTH_nosplit:
849 outflags &= ~MMAN_An_split;
850 outflags |= MMAN_An_nosplit;
851 return 0;
852 default:
853 if (MMAN_An_split & outflags)
854 outflags |= MMAN_br;
855 else if (SEC_AUTHORS == n->sec &&
856 ! (MMAN_An_nosplit & outflags))
857 outflags |= MMAN_An_split;
858 return 1;
859 }
860 }
861
862 static int
863 pre_ap(DECL_ARGS)
864 {
865
866 outflags &= ~MMAN_spc;
867 print_word("'");
868 outflags &= ~MMAN_spc;
869 return 0;
870 }
871
872 static int
873 pre_aq(DECL_ARGS)
874 {
875
876 print_word(n->child != NULL && n->child->next == NULL &&
877 n->child->tok == MDOC_Mt ? "<" : "\\(la");
878 outflags &= ~MMAN_spc;
879 return 1;
880 }
881
882 static void
883 post_aq(DECL_ARGS)
884 {
885
886 outflags &= ~(MMAN_spc | MMAN_nl);
887 print_word(n->child != NULL && n->child->next == NULL &&
888 n->child->tok == MDOC_Mt ? ">" : "\\(ra");
889 }
890
891 static int
892 pre_bd(DECL_ARGS)
893 {
894
895 outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br);
896
897 if (DISP_unfilled == n->norm->Bd.type ||
898 DISP_literal == n->norm->Bd.type)
899 print_line(".nf", 0);
900 if (0 == n->norm->Bd.comp && NULL != n->parent->prev)
901 outflags |= MMAN_sp;
902 print_offs(n->norm->Bd.offs, 1);
903 return 1;
904 }
905
906 static void
907 post_bd(DECL_ARGS)
908 {
909
910 /* Close out this display. */
911 print_line(".RE", MMAN_nl);
912 if (DISP_unfilled == n->norm->Bd.type ||
913 DISP_literal == n->norm->Bd.type)
914 print_line(".fi", MMAN_nl);
915
916 /* Maybe we are inside an enclosing list? */
917 if (NULL != n->parent->next)
918 mid_it();
919 }
920
921 static int
922 pre_bf(DECL_ARGS)
923 {
924
925 switch (n->type) {
926 case ROFFT_BLOCK:
927 return 1;
928 case ROFFT_BODY:
929 break;
930 default:
931 return 0;
932 }
933 switch (n->norm->Bf.font) {
934 case FONT_Em:
935 font_push('I');
936 break;
937 case FONT_Sy:
938 font_push('B');
939 break;
940 default:
941 font_push('R');
942 break;
943 }
944 return 1;
945 }
946
947 static void
948 post_bf(DECL_ARGS)
949 {
950
951 if (n->type == ROFFT_BODY)
952 font_pop();
953 }
954
955 static int
956 pre_bk(DECL_ARGS)
957 {
958
959 switch (n->type) {
960 case ROFFT_BLOCK:
961 return 1;
962 case ROFFT_BODY:
963 outflags |= MMAN_Bk;
964 return 1;
965 default:
966 return 0;
967 }
968 }
969
970 static void
971 post_bk(DECL_ARGS)
972 {
973
974 if (n->type == ROFFT_BODY)
975 outflags &= ~MMAN_Bk;
976 }
977
978 static int
979 pre_bl(DECL_ARGS)
980 {
981 size_t icol;
982
983 /*
984 * print_offs() will increase the -offset to account for
985 * a possible enclosing .It, but any enclosed .It blocks
986 * just nest and do not add up their indentation.
987 */
988 if (n->norm->Bl.offs) {
989 print_offs(n->norm->Bl.offs, 0);
990 Bl_stack[Bl_stack_len++] = 0;
991 }
992
993 switch (n->norm->Bl.type) {
994 case LIST_enum:
995 n->norm->Bl.count = 0;
996 return 1;
997 case LIST_column:
998 break;
999 default:
1000 return 1;
1001 }
1002
1003 if (n->child != NULL) {
1004 print_line(".TS", MMAN_nl);
1005 for (icol = 0; icol < n->norm->Bl.ncols; icol++)
1006 print_word("l");
1007 print_word(".");
1008 }
1009 outflags |= MMAN_nl;
1010 return 1;
1011 }
1012
1013 static void
1014 post_bl(DECL_ARGS)
1015 {
1016
1017 switch (n->norm->Bl.type) {
1018 case LIST_column:
1019 if (n->child != NULL)
1020 print_line(".TE", 0);
1021 break;
1022 case LIST_enum:
1023 n->norm->Bl.count = 0;
1024 break;
1025 default:
1026 break;
1027 }
1028
1029 if (n->norm->Bl.offs) {
1030 print_line(".RE", MMAN_nl);
1031 assert(Bl_stack_len);
1032 Bl_stack_len--;
1033 assert(0 == Bl_stack[Bl_stack_len]);
1034 } else {
1035 outflags |= MMAN_PP | MMAN_nl;
1036 outflags &= ~(MMAN_sp | MMAN_br);
1037 }
1038
1039 /* Maybe we are inside an enclosing list? */
1040 if (NULL != n->parent->next)
1041 mid_it();
1042
1043 }
1044
1045 static int
1046 pre_br(DECL_ARGS)
1047 {
1048
1049 outflags |= MMAN_br;
1050 return 0;
1051 }
1052
1053 static int
1054 pre_bx(DECL_ARGS)
1055 {
1056
1057 n = n->child;
1058 if (n) {
1059 print_word(n->string);
1060 outflags &= ~MMAN_spc;
1061 n = n->next;
1062 }
1063 print_word("BSD");
1064 if (NULL == n)
1065 return 0;
1066 outflags &= ~MMAN_spc;
1067 print_word("-");
1068 outflags &= ~MMAN_spc;
1069 print_word(n->string);
1070 return 0;
1071 }
1072
1073 static int
1074 pre_dl(DECL_ARGS)
1075 {
1076
1077 print_offs("6n", 0);
1078 return 1;
1079 }
1080
1081 static void
1082 post_dl(DECL_ARGS)
1083 {
1084
1085 print_line(".RE", MMAN_nl);
1086
1087 /* Maybe we are inside an enclosing list? */
1088 if (NULL != n->parent->next)
1089 mid_it();
1090 }
1091
1092 static int
1093 pre_em(DECL_ARGS)
1094 {
1095
1096 font_push('I');
1097 return 1;
1098 }
1099
1100 static int
1101 pre_en(DECL_ARGS)
1102 {
1103
1104 if (NULL == n->norm->Es ||
1105 NULL == n->norm->Es->child)
1106 return 1;
1107
1108 print_word(n->norm->Es->child->string);
1109 outflags &= ~MMAN_spc;
1110 return 1;
1111 }
1112
1113 static void
1114 post_en(DECL_ARGS)
1115 {
1116
1117 if (NULL == n->norm->Es ||
1118 NULL == n->norm->Es->child ||
1119 NULL == n->norm->Es->child->next)
1120 return;
1121
1122 outflags &= ~MMAN_spc;
1123 print_word(n->norm->Es->child->next->string);
1124 return;
1125 }
1126
1127 static int
1128 pre_eo(DECL_ARGS)
1129 {
1130
1131 if (n->end == ENDBODY_NOT &&
1132 n->parent->head->child == NULL &&
1133 n->child != NULL &&
1134 n->child->end != ENDBODY_NOT)
1135 print_word("\\&");
1136 else if (n->end != ENDBODY_NOT ? n->child != NULL :
1137 n->parent->head->child != NULL && (n->child != NULL ||
1138 (n->parent->tail != NULL && n->parent->tail->child != NULL)))
1139 outflags &= ~(MMAN_spc | MMAN_nl);
1140 return 1;
1141 }
1142
1143 static void
1144 post_eo(DECL_ARGS)
1145 {
1146 int body, tail;
1147
1148 if (n->end != ENDBODY_NOT) {
1149 outflags |= MMAN_spc;
1150 return;
1151 }
1152
1153 body = n->child != NULL || n->parent->head->child != NULL;
1154 tail = n->parent->tail != NULL && n->parent->tail->child != NULL;
1155
1156 if (body && tail)
1157 outflags &= ~MMAN_spc;
1158 else if ( ! (body || tail))
1159 print_word("\\&");
1160 else if ( ! tail)
1161 outflags |= MMAN_spc;
1162 }
1163
1164 static int
1165 pre_fa(DECL_ARGS)
1166 {
1167 int am_Fa;
1168
1169 am_Fa = MDOC_Fa == n->tok;
1170
1171 if (am_Fa)
1172 n = n->child;
1173
1174 while (NULL != n) {
1175 font_push('I');
1176 if (am_Fa || MDOC_SYNPRETTY & n->flags)
1177 outflags |= MMAN_nbrword;
1178 print_node(meta, n);
1179 font_pop();
1180 if (NULL != (n = n->next))
1181 print_word(",");
1182 }
1183 return 0;
1184 }
1185
1186 static void
1187 post_fa(DECL_ARGS)
1188 {
1189
1190 if (NULL != n->next && MDOC_Fa == n->next->tok)
1191 print_word(",");
1192 }
1193
1194 static int
1195 pre_fd(DECL_ARGS)
1196 {
1197
1198 pre_syn(n);
1199 font_push('B');
1200 return 1;
1201 }
1202
1203 static void
1204 post_fd(DECL_ARGS)
1205 {
1206
1207 font_pop();
1208 outflags |= MMAN_br;
1209 }
1210
1211 static int
1212 pre_fl(DECL_ARGS)
1213 {
1214
1215 font_push('B');
1216 print_word("\\-");
1217 if (n->child != NULL)
1218 outflags &= ~MMAN_spc;
1219 return 1;
1220 }
1221
1222 static void
1223 post_fl(DECL_ARGS)
1224 {
1225
1226 font_pop();
1227 if (!(n->child != NULL ||
1228 n->next == NULL ||
1229 n->next->type == ROFFT_TEXT ||
1230 n->next->flags & MDOC_LINE))
1231 outflags &= ~MMAN_spc;
1232 }
1233
1234 static int
1235 pre_fn(DECL_ARGS)
1236 {
1237
1238 pre_syn(n);
1239
1240 n = n->child;
1241 if (NULL == n)
1242 return 0;
1243
1244 if (MDOC_SYNPRETTY & n->flags)
1245 print_block(".HP 4n", MMAN_nl);
1246
1247 font_push('B');
1248 print_node(meta, n);
1249 font_pop();
1250 outflags &= ~MMAN_spc;
1251 print_word("(");
1252 outflags &= ~MMAN_spc;
1253
1254 n = n->next;
1255 if (NULL != n)
1256 pre_fa(meta, n);
1257 return 0;
1258 }
1259
1260 static void
1261 post_fn(DECL_ARGS)
1262 {
1263
1264 print_word(")");
1265 if (MDOC_SYNPRETTY & n->flags) {
1266 print_word(";");
1267 outflags |= MMAN_PP;
1268 }
1269 }
1270
1271 static int
1272 pre_fo(DECL_ARGS)
1273 {
1274
1275 switch (n->type) {
1276 case ROFFT_BLOCK:
1277 pre_syn(n);
1278 break;
1279 case ROFFT_HEAD:
1280 if (n->child == NULL)
1281 return 0;
1282 if (MDOC_SYNPRETTY & n->flags)
1283 print_block(".HP 4n", MMAN_nl);
1284 font_push('B');
1285 break;
1286 case ROFFT_BODY:
1287 outflags &= ~(MMAN_spc | MMAN_nl);
1288 print_word("(");
1289 outflags &= ~MMAN_spc;
1290 break;
1291 default:
1292 break;
1293 }
1294 return 1;
1295 }
1296
1297 static void
1298 post_fo(DECL_ARGS)
1299 {
1300
1301 switch (n->type) {
1302 case ROFFT_HEAD:
1303 if (n->child != NULL)
1304 font_pop();
1305 break;
1306 case ROFFT_BODY:
1307 post_fn(meta, n);
1308 break;
1309 default:
1310 break;
1311 }
1312 }
1313
1314 static int
1315 pre_ft(DECL_ARGS)
1316 {
1317
1318 pre_syn(n);
1319 font_push('I');
1320 return 1;
1321 }
1322
1323 static int
1324 pre_in(DECL_ARGS)
1325 {
1326
1327 if (MDOC_SYNPRETTY & n->flags) {
1328 pre_syn(n);
1329 font_push('B');
1330 print_word("#include <");
1331 outflags &= ~MMAN_spc;
1332 } else {
1333 print_word("<");
1334 outflags &= ~MMAN_spc;
1335 font_push('I');
1336 }
1337 return 1;
1338 }
1339
1340 static void
1341 post_in(DECL_ARGS)
1342 {
1343
1344 if (MDOC_SYNPRETTY & n->flags) {
1345 outflags &= ~MMAN_spc;
1346 print_word(">");
1347 font_pop();
1348 outflags |= MMAN_br;
1349 } else {
1350 font_pop();
1351 outflags &= ~MMAN_spc;
1352 print_word(">");
1353 }
1354 }
1355
1356 static int
1357 pre_it(DECL_ARGS)
1358 {
1359 const struct roff_node *bln;
1360
1361 switch (n->type) {
1362 case ROFFT_HEAD:
1363 outflags |= MMAN_PP | MMAN_nl;
1364 bln = n->parent->parent;
1365 if (0 == bln->norm->Bl.comp ||
1366 (NULL == n->parent->prev &&
1367 NULL == bln->parent->prev))
1368 outflags |= MMAN_sp;
1369 outflags &= ~MMAN_br;
1370 switch (bln->norm->Bl.type) {
1371 case LIST_item:
1372 return 0;
1373 case LIST_inset:
1374 case LIST_diag:
1375 case LIST_ohang:
1376 if (bln->norm->Bl.type == LIST_diag)
1377 print_line(".B \"", 0);
1378 else
1379 print_line(".R \"", 0);
1380 outflags &= ~MMAN_spc;
1381 return 1;
1382 case LIST_bullet:
1383 case LIST_dash:
1384 case LIST_hyphen:
1385 print_width(&bln->norm->Bl, NULL);
1386 TPremain = 0;
1387 outflags |= MMAN_nl;
1388 font_push('B');
1389 if (LIST_bullet == bln->norm->Bl.type)
1390 print_word("\\(bu");
1391 else
1392 print_word("-");
1393 font_pop();
1394 outflags |= MMAN_nl;
1395 return 0;
1396 case LIST_enum:
1397 print_width(&bln->norm->Bl, NULL);
1398 TPremain = 0;
1399 outflags |= MMAN_nl;
1400 print_count(&bln->norm->Bl.count);
1401 outflags |= MMAN_nl;
1402 return 0;
1403 case LIST_hang:
1404 print_width(&bln->norm->Bl, n->child);
1405 TPremain = 0;
1406 outflags |= MMAN_nl;
1407 return 1;
1408 case LIST_tag:
1409 print_width(&bln->norm->Bl, n->child);
1410 putchar('\n');
1411 outflags &= ~MMAN_spc;
1412 return 1;
1413 default:
1414 return 1;
1415 }
1416 default:
1417 break;
1418 }
1419 return 1;
1420 }
1421
1422 /*
1423 * This function is called after closing out an indented block.
1424 * If we are inside an enclosing list, restore its indentation.
1425 */
1426 static void
1427 mid_it(void)
1428 {
1429 char buf[24];
1430
1431 /* Nothing to do outside a list. */
1432 if (0 == Bl_stack_len || 0 == Bl_stack[Bl_stack_len - 1])
1433 return;
1434
1435 /* The indentation has already been set up. */
1436 if (Bl_stack_post[Bl_stack_len - 1])
1437 return;
1438
1439 /* Restore the indentation of the enclosing list. */
1440 print_line(".RS", MMAN_Bk_susp);
1441 (void)snprintf(buf, sizeof(buf), "%dn",
1442 Bl_stack[Bl_stack_len - 1]);
1443 print_word(buf);
1444
1445 /* Remeber to close out this .RS block later. */
1446 Bl_stack_post[Bl_stack_len - 1] = 1;
1447 }
1448
1449 static void
1450 post_it(DECL_ARGS)
1451 {
1452 const struct roff_node *bln;
1453
1454 bln = n->parent->parent;
1455
1456 switch (n->type) {
1457 case ROFFT_HEAD:
1458 switch (bln->norm->Bl.type) {
1459 case LIST_diag:
1460 outflags &= ~MMAN_spc;
1461 print_word("\\ ");
1462 break;
1463 case LIST_ohang:
1464 outflags |= MMAN_br;
1465 break;
1466 default:
1467 break;
1468 }
1469 break;
1470 case ROFFT_BODY:
1471 switch (bln->norm->Bl.type) {
1472 case LIST_bullet:
1473 case LIST_dash:
1474 case LIST_hyphen:
1475 case LIST_enum:
1476 case LIST_hang:
1477 case LIST_tag:
1478 assert(Bl_stack_len);
1479 Bl_stack[--Bl_stack_len] = 0;
1480
1481 /*
1482 * Our indentation had to be restored
1483 * after a child display or child list.
1484 * Close out that indentation block now.
1485 */
1486 if (Bl_stack_post[Bl_stack_len]) {
1487 print_line(".RE", MMAN_nl);
1488 Bl_stack_post[Bl_stack_len] = 0;
1489 }
1490 break;
1491 case LIST_column:
1492 if (NULL != n->next) {
1493 putchar('\t');
1494 outflags &= ~MMAN_spc;
1495 }
1496 break;
1497 default:
1498 break;
1499 }
1500 break;
1501 default:
1502 break;
1503 }
1504 }
1505
1506 static void
1507 post_lb(DECL_ARGS)
1508 {
1509
1510 if (SEC_LIBRARY == n->sec)
1511 outflags |= MMAN_br;
1512 }
1513
1514 static int
1515 pre_lk(DECL_ARGS)
1516 {
1517 const struct roff_node *link, *descr;
1518
1519 if (NULL == (link = n->child))
1520 return 0;
1521
1522 if (NULL != (descr = link->next)) {
1523 font_push('I');
1524 while (NULL != descr) {
1525 print_word(descr->string);
1526 descr = descr->next;
1527 }
1528 print_word(":");
1529 font_pop();
1530 }
1531
1532 font_push('B');
1533 print_word(link->string);
1534 font_pop();
1535 return 0;
1536 }
1537
1538 static int
1539 pre_ll(DECL_ARGS)
1540 {
1541
1542 print_line(".ll", 0);
1543 return 1;
1544 }
1545
1546 static int
1547 pre_li(DECL_ARGS)
1548 {
1549
1550 font_push('R');
1551 return 1;
1552 }
1553
1554 static int
1555 pre_nm(DECL_ARGS)
1556 {
1557 char *name;
1558
1559 if (n->type == ROFFT_BLOCK) {
1560 outflags |= MMAN_Bk;
1561 pre_syn(n);
1562 }
1563 if (n->type != ROFFT_ELEM && n->type != ROFFT_HEAD)
1564 return 1;
1565 name = n->child ? n->child->string : meta->name;
1566 if (NULL == name)
1567 return 0;
1568 if (n->type == ROFFT_HEAD) {
1569 if (NULL == n->parent->prev)
1570 outflags |= MMAN_sp;
1571 print_block(".HP", 0);
1572 printf(" %zun", strlen(name) + 1);
1573 outflags |= MMAN_nl;
1574 }
1575 font_push('B');
1576 if (NULL == n->child)
1577 print_word(meta->name);
1578 return 1;
1579 }
1580
1581 static void
1582 post_nm(DECL_ARGS)
1583 {
1584
1585 switch (n->type) {
1586 case ROFFT_BLOCK:
1587 outflags &= ~MMAN_Bk;
1588 break;
1589 case ROFFT_HEAD:
1590 case ROFFT_ELEM:
1591 if (n->child != NULL || meta->name != NULL)
1592 font_pop();
1593 break;
1594 default:
1595 break;
1596 }
1597 }
1598
1599 static int
1600 pre_no(DECL_ARGS)
1601 {
1602
1603 outflags |= MMAN_spc_force;
1604 return 1;
1605 }
1606
1607 static int
1608 pre_ns(DECL_ARGS)
1609 {
1610
1611 outflags &= ~MMAN_spc;
1612 return 0;
1613 }
1614
1615 static void
1616 post_pf(DECL_ARGS)
1617 {
1618
1619 if ( ! (n->next == NULL || n->next->flags & MDOC_LINE))
1620 outflags &= ~MMAN_spc;
1621 }
1622
1623 static int
1624 pre_pp(DECL_ARGS)
1625 {
1626
1627 if (MDOC_It != n->parent->tok)
1628 outflags |= MMAN_PP;
1629 outflags |= MMAN_sp | MMAN_nl;
1630 outflags &= ~MMAN_br;
1631 return 0;
1632 }
1633
1634 static int
1635 pre_rs(DECL_ARGS)
1636 {
1637
1638 if (SEC_SEE_ALSO == n->sec) {
1639 outflags |= MMAN_PP | MMAN_sp | MMAN_nl;
1640 outflags &= ~MMAN_br;
1641 }
1642 return 1;
1643 }
1644
1645 static int
1646 pre_rv(DECL_ARGS)
1647 {
1648 struct roff_node *nch;
1649
1650 outflags |= MMAN_br | MMAN_nl;
1651
1652 if (n->child != NULL) {
1653 print_word("The");
1654
1655 for (nch = n->child; nch != NULL; nch = nch->next) {
1656 font_push('B');
1657 print_word(nch->string);
1658 font_pop();
1659
1660 outflags &= ~MMAN_spc;
1661 print_word("()");
1662
1663 if (nch->next == NULL)
1664 continue;
1665
1666 if (nch->prev != NULL || nch->next->next != NULL) {
1667 outflags &= ~MMAN_spc;
1668 print_word(",");
1669 }
1670 if (nch->next->next == NULL)
1671 print_word("and");
1672 }
1673
1674 if (n->child != NULL && n->child->next != NULL)
1675 print_word("functions return");
1676 else
1677 print_word("function returns");
1678
1679 print_word("the value\\~0 if successful;");
1680 } else
1681 print_word("Upon successful completion, "
1682 "the value\\~0 is returned;");
1683
1684 print_word("otherwise the value\\~\\-1 is returned"
1685 " and the global variable");
1686
1687 font_push('I');
1688 print_word("errno");
1689 font_pop();
1690
1691 print_word("is set to indicate the error.");
1692 outflags |= MMAN_nl;
1693 return 0;
1694 }
1695
1696 static int
1697 pre_skip(DECL_ARGS)
1698 {
1699
1700 return 0;
1701 }
1702
1703 static int
1704 pre_sm(DECL_ARGS)
1705 {
1706
1707 if (NULL == n->child)
1708 outflags ^= MMAN_Sm;
1709 else if (0 == strcmp("on", n->child->string))
1710 outflags |= MMAN_Sm;
1711 else
1712 outflags &= ~MMAN_Sm;
1713
1714 if (MMAN_Sm & outflags)
1715 outflags |= MMAN_spc;
1716
1717 return 0;
1718 }
1719
1720 static int
1721 pre_sp(DECL_ARGS)
1722 {
1723
1724 if (MMAN_PP & outflags) {
1725 outflags &= ~MMAN_PP;
1726 print_line(".PP", 0);
1727 } else
1728 print_line(".sp", 0);
1729 return 1;
1730 }
1731
1732 static void
1733 post_sp(DECL_ARGS)
1734 {
1735
1736 outflags |= MMAN_nl;
1737 }
1738
1739 static int
1740 pre_sy(DECL_ARGS)
1741 {
1742
1743 font_push('B');
1744 return 1;
1745 }
1746
1747 static int
1748 pre_vt(DECL_ARGS)
1749 {
1750
1751 if (MDOC_SYNPRETTY & n->flags) {
1752 switch (n->type) {
1753 case ROFFT_BLOCK:
1754 pre_syn(n);
1755 return 1;
1756 case ROFFT_BODY:
1757 break;
1758 default:
1759 return 0;
1760 }
1761 }
1762 font_push('I');
1763 return 1;
1764 }
1765
1766 static void
1767 post_vt(DECL_ARGS)
1768 {
1769
1770 if (n->flags & MDOC_SYNPRETTY && n->type != ROFFT_BODY)
1771 return;
1772 font_pop();
1773 }
1774
1775 static int
1776 pre_xr(DECL_ARGS)
1777 {
1778
1779 n = n->child;
1780 if (NULL == n)
1781 return 0;
1782 print_node(meta, n);
1783 n = n->next;
1784 if (NULL == n)
1785 return 0;
1786 outflags &= ~MMAN_spc;
1787 print_word("(");
1788 print_node(meta, n);
1789 print_word(")");
1790 return 0;
1791 }
1792
1793 static int
1794 pre_ux(DECL_ARGS)
1795 {
1796
1797 print_word(manacts[n->tok].prefix);
1798 if (NULL == n->child)
1799 return 0;
1800 outflags &= ~MMAN_spc;
1801 print_word("\\ ");
1802 outflags &= ~MMAN_spc;
1803 return 1;
1804 }
unleashed repo fork