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mandoc: update to 1.14.1
[unleashed.git] / bin / mandoc / mdoc_man.c
blob88d39370e8c2a872badcdad69c81ee3340df741d
1 /* $Id: mdoc_man.c,v 1.104 2017/02/17 19:15:41 schwarze Exp $ */
2 /*
3 * Copyright (c) 2011-2017 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_dl(DECL_ARGS);
83 static int pre_en(DECL_ARGS);
84 static int pre_enc(DECL_ARGS);
85 static int pre_em(DECL_ARGS);
86 static int pre_skip(DECL_ARGS);
87 static int pre_eo(DECL_ARGS);
88 static int pre_ex(DECL_ARGS);
89 static int pre_fa(DECL_ARGS);
90 static int pre_fd(DECL_ARGS);
91 static int pre_fl(DECL_ARGS);
92 static int pre_fn(DECL_ARGS);
93 static int pre_fo(DECL_ARGS);
94 static int pre_ft(DECL_ARGS);
95 static int pre_in(DECL_ARGS);
96 static int pre_it(DECL_ARGS);
97 static int pre_lk(DECL_ARGS);
98 static int pre_li(DECL_ARGS);
99 static int pre_ll(DECL_ARGS);
100 static int pre_nm(DECL_ARGS);
101 static int pre_no(DECL_ARGS);
102 static int pre_ns(DECL_ARGS);
103 static int pre_pp(DECL_ARGS);
104 static int pre_rs(DECL_ARGS);
105 static int pre_sm(DECL_ARGS);
106 static int pre_sp(DECL_ARGS);
107 static int pre_sect(DECL_ARGS);
108 static int pre_sy(DECL_ARGS);
109 static void pre_syn(const struct roff_node *);
110 static int pre_vt(DECL_ARGS);
111 static int pre_xr(DECL_ARGS);
112 static void print_word(const char *);
113 static void print_line(const char *, int);
114 static void print_block(const char *, int);
115 static void print_offs(const char *, int);
116 static void print_width(const struct mdoc_bl *,
117 const struct roff_node *);
118 static void print_count(int *);
119 static void print_node(DECL_ARGS);
120
121 static const struct manact manacts[MDOC_MAX + 1] = {
122 { NULL, pre_ap, NULL, NULL, NULL }, /* Ap */
123 { NULL, NULL, NULL, NULL, NULL }, /* Dd */
124 { NULL, NULL, NULL, NULL, NULL }, /* Dt */
125 { NULL, NULL, NULL, NULL, NULL }, /* Os */
126 { NULL, pre_sect, post_sect, ".SH", NULL }, /* Sh */
127 { NULL, pre_sect, post_sect, ".SS", NULL }, /* Ss */
128 { NULL, pre_pp, NULL, NULL, NULL }, /* Pp */
129 { cond_body, pre_dl, post_dl, NULL, NULL }, /* D1 */
130 { cond_body, pre_dl, post_dl, NULL, NULL }, /* Dl */
131 { cond_body, pre_bd, post_bd, NULL, NULL }, /* Bd */
132 { NULL, NULL, NULL, NULL, NULL }, /* Ed */
133 { cond_body, pre_bl, post_bl, NULL, NULL }, /* Bl */
134 { NULL, NULL, NULL, NULL, NULL }, /* El */
135 { NULL, pre_it, post_it, NULL, NULL }, /* It */
136 { NULL, pre_em, post_font, NULL, NULL }, /* Ad */
137 { NULL, pre_an, NULL, NULL, NULL }, /* An */
138 { NULL, pre_em, post_font, NULL, NULL }, /* Ar */
139 { NULL, pre_sy, post_font, NULL, NULL }, /* Cd */
140 { NULL, pre_sy, post_font, NULL, NULL }, /* Cm */
141 { NULL, pre_li, post_font, NULL, NULL }, /* Dv */
142 { NULL, pre_li, post_font, NULL, NULL }, /* Er */
143 { NULL, pre_li, post_font, NULL, NULL }, /* Ev */
144 { NULL, pre_ex, NULL, NULL, NULL }, /* Ex */
145 { NULL, pre_fa, post_fa, NULL, NULL }, /* Fa */
146 { NULL, pre_fd, post_fd, NULL, NULL }, /* Fd */
147 { NULL, pre_fl, post_fl, NULL, NULL }, /* Fl */
148 { NULL, pre_fn, post_fn, NULL, NULL }, /* Fn */
149 { NULL, pre_ft, post_font, NULL, NULL }, /* Ft */
150 { NULL, pre_sy, post_font, NULL, NULL }, /* Ic */
151 { NULL, pre_in, post_in, NULL, NULL }, /* In */
152 { NULL, pre_li, post_font, NULL, NULL }, /* Li */
153 { cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */
154 { NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */
155 { cond_body, pre_enc, post_enc, "[", "]" }, /* Op */
156 { NULL, pre_ft, post_font, NULL, NULL }, /* Ot */
157 { NULL, pre_em, post_font, NULL, NULL }, /* Pa */
158 { NULL, pre_ex, NULL, NULL, NULL }, /* Rv */
159 { NULL, NULL, NULL, NULL, NULL }, /* St */
160 { NULL, pre_em, post_font, NULL, NULL }, /* Va */
161 { NULL, pre_vt, post_vt, NULL, NULL }, /* Vt */
162 { NULL, pre_xr, NULL, NULL, NULL }, /* Xr */
163 { NULL, NULL, post_percent, NULL, NULL }, /* %A */
164 { NULL, pre_em, post_percent, NULL, NULL }, /* %B */
165 { NULL, NULL, post_percent, NULL, NULL }, /* %D */
166 { NULL, pre_em, post_percent, NULL, NULL }, /* %I */
167 { NULL, pre_em, post_percent, NULL, NULL }, /* %J */
168 { NULL, NULL, post_percent, NULL, NULL }, /* %N */
169 { NULL, NULL, post_percent, NULL, NULL }, /* %O */
170 { NULL, NULL, post_percent, NULL, NULL }, /* %P */
171 { NULL, NULL, post_percent, NULL, NULL }, /* %R */
172 { NULL, pre__t, post__t, NULL, NULL }, /* %T */
173 { NULL, NULL, post_percent, NULL, NULL }, /* %V */
174 { NULL, NULL, NULL, NULL, NULL }, /* Ac */
175 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Ao */
176 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Aq */
177 { NULL, NULL, NULL, NULL, NULL }, /* At */
178 { NULL, NULL, NULL, NULL, NULL }, /* Bc */
179 { NULL, pre_bf, post_bf, NULL, NULL }, /* Bf */
180 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bo */
181 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bq */
182 { NULL, NULL, NULL, NULL, NULL }, /* Bsx */
183 { NULL, NULL, NULL, NULL, NULL }, /* Bx */
184 { NULL, pre_skip, NULL, NULL, NULL }, /* Db */
185 { NULL, NULL, NULL, NULL, NULL }, /* Dc */
186 { cond_body, pre_enc, post_enc, "\\(Lq", "\\(Rq" }, /* Do */
187 { cond_body, pre_enc, post_enc, "\\(Lq", "\\(Rq" }, /* Dq */
188 { NULL, NULL, NULL, NULL, NULL }, /* Ec */
189 { NULL, NULL, NULL, NULL, NULL }, /* Ef */
190 { NULL, pre_em, post_font, NULL, NULL }, /* Em */
191 { cond_body, pre_eo, post_eo, NULL, NULL }, /* Eo */
192 { NULL, NULL, NULL, NULL, NULL }, /* Fx */
193 { NULL, pre_sy, post_font, NULL, NULL }, /* Ms */
194 { NULL, pre_no, NULL, NULL, NULL }, /* No */
195 { NULL, pre_ns, NULL, NULL, NULL }, /* Ns */
196 { NULL, NULL, NULL, NULL, NULL }, /* Nx */
197 { NULL, NULL, NULL, NULL, NULL }, /* Ox */
198 { NULL, NULL, NULL, NULL, NULL }, /* Pc */
199 { NULL, NULL, post_pf, NULL, NULL }, /* Pf */
200 { cond_body, pre_enc, post_enc, "(", ")" }, /* Po */
201 { cond_body, pre_enc, post_enc, "(", ")" }, /* Pq */
202 { NULL, NULL, NULL, NULL, NULL }, /* Qc */
203 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Ql */
204 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qo */
205 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qq */
206 { NULL, NULL, NULL, NULL, NULL }, /* Re */
207 { cond_body, pre_rs, NULL, NULL, NULL }, /* Rs */
208 { NULL, NULL, NULL, NULL, NULL }, /* Sc */
209 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* So */
210 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Sq */
211 { NULL, pre_sm, NULL, NULL, NULL }, /* Sm */
212 { NULL, pre_em, post_font, NULL, NULL }, /* Sx */
213 { NULL, pre_sy, post_font, NULL, NULL }, /* Sy */
214 { NULL, pre_li, post_font, NULL, NULL }, /* Tn */
215 { NULL, NULL, NULL, NULL, NULL }, /* Ux */
216 { NULL, NULL, NULL, NULL, NULL }, /* Xc */
217 { NULL, NULL, NULL, NULL, NULL }, /* Xo */
218 { NULL, pre_fo, post_fo, NULL, NULL }, /* Fo */
219 { NULL, NULL, NULL, NULL, NULL }, /* Fc */
220 { cond_body, pre_enc, post_enc, "[", "]" }, /* Oo */
221 { NULL, NULL, NULL, NULL, NULL }, /* Oc */
222 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bk */
223 { NULL, NULL, NULL, NULL, NULL }, /* Ek */
224 { NULL, NULL, NULL, NULL, NULL }, /* Bt */
225 { NULL, NULL, NULL, NULL, NULL }, /* Hf */
226 { NULL, pre_em, post_font, NULL, NULL }, /* Fr */
227 { NULL, NULL, NULL, NULL, NULL }, /* Ud */
228 { NULL, NULL, post_lb, NULL, NULL }, /* Lb */
229 { NULL, pre_pp, NULL, NULL, NULL }, /* Lp */
230 { NULL, pre_lk, NULL, NULL, NULL }, /* Lk */
231 { NULL, pre_em, post_font, NULL, NULL }, /* Mt */
232 { cond_body, pre_enc, post_enc, "{", "}" }, /* Brq */
233 { cond_body, pre_enc, post_enc, "{", "}" }, /* Bro */
234 { NULL, NULL, NULL, NULL, NULL }, /* Brc */
235 { NULL, NULL, post_percent, NULL, NULL }, /* %C */
236 { NULL, pre_skip, NULL, NULL, NULL }, /* Es */
237 { cond_body, pre_en, post_en, NULL, NULL }, /* En */
238 { NULL, NULL, NULL, NULL, NULL }, /* Dx */
239 { NULL, NULL, post_percent, NULL, NULL }, /* %Q */
240 { NULL, pre_br, NULL, NULL, NULL }, /* br */
241 { NULL, pre_sp, post_sp, NULL, NULL }, /* sp */
242 { NULL, NULL, post_percent, NULL, NULL }, /* %U */
243 { NULL, NULL, NULL, NULL, NULL }, /* Ta */
244 { NULL, pre_ll, post_sp, NULL, NULL }, /* ll */
245 { NULL, NULL, NULL, NULL, NULL }, /* ROOT */
246 };
247
248 static int outflags;
249 #define MMAN_spc (1 << 0) /* blank character before next word */
250 #define MMAN_spc_force (1 << 1) /* even before trailing punctuation */
251 #define MMAN_nl (1 << 2) /* break man(7) code line */
252 #define MMAN_br (1 << 3) /* break output line */
253 #define MMAN_sp (1 << 4) /* insert a blank output line */
254 #define MMAN_PP (1 << 5) /* reset indentation etc. */
255 #define MMAN_Sm (1 << 6) /* horizontal spacing mode */
256 #define MMAN_Bk (1 << 7) /* word keep mode */
257 #define MMAN_Bk_susp (1 << 8) /* suspend this (after a macro) */
258 #define MMAN_An_split (1 << 9) /* author mode is "split" */
259 #define MMAN_An_nosplit (1 << 10) /* author mode is "nosplit" */
260 #define MMAN_PD (1 << 11) /* inter-paragraph spacing disabled */
261 #define MMAN_nbrword (1 << 12) /* do not break the next word */
262
263 #define BL_STACK_MAX 32
264
265 static int Bl_stack[BL_STACK_MAX]; /* offsets [chars] */
266 static int Bl_stack_post[BL_STACK_MAX]; /* add final .RE */
267 static int Bl_stack_len; /* number of nested Bl blocks */
268 static int TPremain; /* characters before tag is full */
269
270 static struct {
271 char *head;
272 char *tail;
273 size_t size;
274 } fontqueue;
275
276
277 static void
278 font_push(char newfont)
279 {
280
281 if (fontqueue.head + fontqueue.size <= ++fontqueue.tail) {
282 fontqueue.size += 8;
283 fontqueue.head = mandoc_realloc(fontqueue.head,
284 fontqueue.size);
285 }
286 *fontqueue.tail = newfont;
287 print_word("");
288 printf("\\f");
289 putchar(newfont);
290 outflags &= ~MMAN_spc;
291 }
292
293 static void
294 font_pop(void)
295 {
296
297 if (fontqueue.tail > fontqueue.head)
298 fontqueue.tail--;
299 outflags &= ~MMAN_spc;
300 print_word("");
301 printf("\\f");
302 putchar(*fontqueue.tail);
303 }
304
305 static void
306 print_word(const char *s)
307 {
308
309 if ((MMAN_PP | MMAN_sp | MMAN_br | MMAN_nl) & outflags) {
310 /*
311 * If we need a newline, print it now and start afresh.
312 */
313 if (MMAN_PP & outflags) {
314 if (MMAN_sp & outflags) {
315 if (MMAN_PD & outflags) {
316 printf("\n.PD");
317 outflags &= ~MMAN_PD;
318 }
319 } else if ( ! (MMAN_PD & outflags)) {
320 printf("\n.PD 0");
321 outflags |= MMAN_PD;
322 }
323 printf("\n.PP\n");
324 } else if (MMAN_sp & outflags)
325 printf("\n.sp\n");
326 else if (MMAN_br & outflags)
327 printf("\n.br\n");
328 else if (MMAN_nl & outflags)
329 putchar('\n');
330 outflags &= ~(MMAN_PP|MMAN_sp|MMAN_br|MMAN_nl|MMAN_spc);
331 if (1 == TPremain)
332 printf(".br\n");
333 TPremain = 0;
334 } else if (MMAN_spc & outflags) {
335 /*
336 * If we need a space, only print it if
337 * (1) it is forced by `No' or
338 * (2) what follows is not terminating punctuation or
339 * (3) what follows is longer than one character.
340 */
341 if (MMAN_spc_force & outflags || '\0' == s[0] ||
342 NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1]) {
343 if (MMAN_Bk & outflags &&
344 ! (MMAN_Bk_susp & outflags))
345 putchar('\\');
346 putchar(' ');
347 if (TPremain)
348 TPremain--;
349 }
350 }
351
352 /*
353 * Reassign needing space if we're not following opening
354 * punctuation.
355 */
356 if (MMAN_Sm & outflags && ('\0' == s[0] ||
357 (('(' != s[0] && '[' != s[0]) || '\0' != s[1])))
358 outflags |= MMAN_spc;
359 else
360 outflags &= ~MMAN_spc;
361 outflags &= ~(MMAN_spc_force | MMAN_Bk_susp);
362
363 for ( ; *s; s++) {
364 switch (*s) {
365 case ASCII_NBRSP:
366 printf("\\ ");
367 break;
368 case ASCII_HYPH:
369 putchar('-');
370 break;
371 case ASCII_BREAK:
372 printf("\\:");
373 break;
374 case ' ':
375 if (MMAN_nbrword & outflags) {
376 printf("\\ ");
377 break;
378 }
379 /* FALLTHROUGH */
380 default:
381 putchar((unsigned char)*s);
382 break;
383 }
384 if (TPremain)
385 TPremain--;
386 }
387 outflags &= ~MMAN_nbrword;
388 }
389
390 static void
391 print_line(const char *s, int newflags)
392 {
393
394 outflags &= ~MMAN_br;
395 outflags |= MMAN_nl;
396 print_word(s);
397 outflags |= newflags;
398 }
399
400 static void
401 print_block(const char *s, int newflags)
402 {
403
404 outflags &= ~MMAN_PP;
405 if (MMAN_sp & outflags) {
406 outflags &= ~(MMAN_sp | MMAN_br);
407 if (MMAN_PD & outflags) {
408 print_line(".PD", 0);
409 outflags &= ~MMAN_PD;
410 }
411 } else if (! (MMAN_PD & outflags))
412 print_line(".PD 0", MMAN_PD);
413 outflags |= MMAN_nl;
414 print_word(s);
415 outflags |= MMAN_Bk_susp | newflags;
416 }
417
418 static void
419 print_offs(const char *v, int keywords)
420 {
421 char buf[24];
422 struct roffsu su;
423 int sz;
424
425 print_line(".RS", MMAN_Bk_susp);
426
427 /* Convert v into a number (of characters). */
428 if (NULL == v || '\0' == *v || (keywords && !strcmp(v, "left")))
429 sz = 0;
430 else if (keywords && !strcmp(v, "indent"))
431 sz = 6;
432 else if (keywords && !strcmp(v, "indent-two"))
433 sz = 12;
434 else if (a2roffsu(v, &su, SCALE_EN) > 1) {
435 if (SCALE_EN == su.unit)
436 sz = su.scale;
437 else {
438 /*
439 * XXX
440 * If we are inside an enclosing list,
441 * there is no easy way to add the two
442 * indentations because they are provided
443 * in terms of different units.
444 */
445 print_word(v);
446 outflags |= MMAN_nl;
447 return;
448 }
449 } else
450 sz = strlen(v);
451
452 /*
453 * We are inside an enclosing list.
454 * Add the two indentations.
455 */
456 if (Bl_stack_len)
457 sz += Bl_stack[Bl_stack_len - 1];
458
459 (void)snprintf(buf, sizeof(buf), "%dn", sz);
460 print_word(buf);
461 outflags |= MMAN_nl;
462 }
463
464 /*
465 * Set up the indentation for a list item; used from pre_it().
466 */
467 static void
468 print_width(const struct mdoc_bl *bl, const struct roff_node *child)
469 {
470 char buf[24];
471 struct roffsu su;
472 int numeric, remain, sz, chsz;
473
474 numeric = 1;
475 remain = 0;
476
477 /* Convert the width into a number (of characters). */
478 if (bl->width == NULL)
479 sz = (bl->type == LIST_hang) ? 6 : 0;
480 else if (a2roffsu(bl->width, &su, SCALE_MAX) > 1) {
481 if (SCALE_EN == su.unit)
482 sz = su.scale;
483 else {
484 sz = 0;
485 numeric = 0;
486 }
487 } else
488 sz = strlen(bl->width);
489
490 /* XXX Rough estimation, might have multiple parts. */
491 if (bl->type == LIST_enum)
492 chsz = (bl->count > 8) + 1;
493 else if (child != NULL && child->type == ROFFT_TEXT)
494 chsz = strlen(child->string);
495 else
496 chsz = 0;
497
498 /* Maybe we are inside an enclosing list? */
499 mid_it();
500
501 /*
502 * Save our own indentation,
503 * such that child lists can use it.
504 */
505 Bl_stack[Bl_stack_len++] = sz + 2;
506
507 /* Set up the current list. */
508 if (chsz > sz && bl->type != LIST_tag)
509 print_block(".HP", 0);
510 else {
511 print_block(".TP", 0);
512 remain = sz + 2;
513 }
514 if (numeric) {
515 (void)snprintf(buf, sizeof(buf), "%dn", sz + 2);
516 print_word(buf);
517 } else
518 print_word(bl->width);
519 TPremain = remain;
520 }
521
522 static void
523 print_count(int *count)
524 {
525 char buf[24];
526
527 (void)snprintf(buf, sizeof(buf), "%d.\\&", ++*count);
528 print_word(buf);
529 }
530
531 void
532 man_man(void *arg, const struct roff_man *man)
533 {
534
535 /*
536 * Dump the keep buffer.
537 * We're guaranteed by now that this exists (is non-NULL).
538 * Flush stdout afterward, just in case.
539 */
540 fputs(mparse_getkeep(man_mparse(man)), stdout);
541 fflush(stdout);
542 }
543
544 void
545 man_mdoc(void *arg, const struct roff_man *mdoc)
546 {
547 struct roff_node *n;
548
549 printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"\n",
550 mdoc->meta.title,
551 (mdoc->meta.msec == NULL ? "" : mdoc->meta.msec),
552 mdoc->meta.date, mdoc->meta.os, mdoc->meta.vol);
553
554 /* Disable hyphenation and if nroff, disable justification. */
555 printf(".nh\n.if n .ad l");
556
557 outflags = MMAN_nl | MMAN_Sm;
558 if (0 == fontqueue.size) {
559 fontqueue.size = 8;
560 fontqueue.head = fontqueue.tail = mandoc_malloc(8);
561 *fontqueue.tail = 'R';
562 }
563 for (n = mdoc->first->child; n != NULL; n = n->next)
564 print_node(&mdoc->meta, n);
565 putchar('\n');
566 }
567
568 static void
569 print_node(DECL_ARGS)
570 {
571 const struct manact *act;
572 struct roff_node *sub;
573 int cond, do_sub;
574
575 if (n->flags & NODE_NOPRT)
576 return;
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 && NODE_LINE & n->flags)
583 outflags |= MMAN_nl;
584
585 act = NULL;
586 cond = 0;
587 do_sub = 1;
588 n->flags &= ~NODE_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 (n->flags & NODE_DELIMC)
602 outflags &= ~(MMAN_spc | MMAN_spc_force);
603 else if (outflags & MMAN_Sm)
604 outflags |= MMAN_spc_force;
605 print_word(n->string);
606 if (n->flags & NODE_DELIMO)
607 outflags &= ~(MMAN_spc | MMAN_spc_force);
608 else if (outflags & MMAN_Sm)
609 outflags |= MMAN_spc;
610 } else {
611 /*
612 * Conditionally run the pre-node action handler for a
613 * node.
614 */
615 act = manacts + n->tok;
616 cond = act->cond == NULL || (*act->cond)(meta, n);
617 if (cond && act->pre != NULL &&
618 (n->end == ENDBODY_NOT || n->child != NULL))
619 do_sub = (*act->pre)(meta, n);
620 }
621
622 /*
623 * Conditionally run all child nodes.
624 * Note that this iterates over children instead of using
625 * recursion. This prevents unnecessary depth in the stack.
626 */
627 if (do_sub)
628 for (sub = n->child; sub; sub = sub->next)
629 print_node(meta, sub);
630
631 /*
632 * Lastly, conditionally run the post-node handler.
633 */
634 if (NODE_ENDED & n->flags)
635 return;
636
637 if (cond && act->post)
638 (*act->post)(meta, n);
639
640 if (ENDBODY_NOT != n->end)
641 n->body->flags |= NODE_ENDED;
642 }
643
644 static int
645 cond_head(DECL_ARGS)
646 {
647
648 return n->type == ROFFT_HEAD;
649 }
650
651 static int
652 cond_body(DECL_ARGS)
653 {
654
655 return n->type == ROFFT_BODY;
656 }
657
658 static int
659 pre_enc(DECL_ARGS)
660 {
661 const char *prefix;
662
663 prefix = manacts[n->tok].prefix;
664 if (NULL == prefix)
665 return 1;
666 print_word(prefix);
667 outflags &= ~MMAN_spc;
668 return 1;
669 }
670
671 static void
672 post_enc(DECL_ARGS)
673 {
674 const char *suffix;
675
676 suffix = manacts[n->tok].suffix;
677 if (NULL == suffix)
678 return;
679 outflags &= ~(MMAN_spc | MMAN_nl);
680 print_word(suffix);
681 }
682
683 static int
684 pre_ex(DECL_ARGS)
685 {
686 outflags |= MMAN_br | MMAN_nl;
687 return 1;
688 }
689
690 static void
691 post_font(DECL_ARGS)
692 {
693
694 font_pop();
695 }
696
697 static void
698 post_percent(DECL_ARGS)
699 {
700
701 if (pre_em == manacts[n->tok].pre)
702 font_pop();
703 if (n->next) {
704 print_word(",");
705 if (n->prev && n->prev->tok == n->tok &&
706 n->next->tok == n->tok)
707 print_word("and");
708 } else {
709 print_word(".");
710 outflags |= MMAN_nl;
711 }
712 }
713
714 static int
715 pre__t(DECL_ARGS)
716 {
717
718 if (n->parent && MDOC_Rs == n->parent->tok &&
719 n->parent->norm->Rs.quote_T) {
720 print_word("\\(lq");
721 outflags &= ~MMAN_spc;
722 } else
723 font_push('I');
724 return 1;
725 }
726
727 static void
728 post__t(DECL_ARGS)
729 {
730
731 if (n->parent && MDOC_Rs == n->parent->tok &&
732 n->parent->norm->Rs.quote_T) {
733 outflags &= ~MMAN_spc;
734 print_word("\\(rq");
735 } else
736 font_pop();
737 post_percent(meta, n);
738 }
739
740 /*
741 * Print before a section header.
742 */
743 static int
744 pre_sect(DECL_ARGS)
745 {
746
747 if (n->type == ROFFT_HEAD) {
748 outflags |= MMAN_sp;
749 print_block(manacts[n->tok].prefix, 0);
750 print_word("");
751 putchar('\"');
752 outflags &= ~MMAN_spc;
753 }
754 return 1;
755 }
756
757 /*
758 * Print subsequent a section header.
759 */
760 static void
761 post_sect(DECL_ARGS)
762 {
763
764 if (n->type != ROFFT_HEAD)
765 return;
766 outflags &= ~MMAN_spc;
767 print_word("");
768 putchar('\"');
769 outflags |= MMAN_nl;
770 if (MDOC_Sh == n->tok && SEC_AUTHORS == n->sec)
771 outflags &= ~(MMAN_An_split | MMAN_An_nosplit);
772 }
773
774 /* See mdoc_term.c, synopsis_pre() for comments. */
775 static void
776 pre_syn(const struct roff_node *n)
777 {
778
779 if (NULL == n->prev || ! (NODE_SYNPRETTY & n->flags))
780 return;
781
782 if (n->prev->tok == n->tok &&
783 MDOC_Ft != n->tok &&
784 MDOC_Fo != n->tok &&
785 MDOC_Fn != n->tok) {
786 outflags |= MMAN_br;
787 return;
788 }
789
790 switch (n->prev->tok) {
791 case MDOC_Fd:
792 case MDOC_Fn:
793 case MDOC_Fo:
794 case MDOC_In:
795 case MDOC_Vt:
796 outflags |= MMAN_sp;
797 break;
798 case MDOC_Ft:
799 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
800 outflags |= MMAN_sp;
801 break;
802 }
803 /* FALLTHROUGH */
804 default:
805 outflags |= MMAN_br;
806 break;
807 }
808 }
809
810 static int
811 pre_an(DECL_ARGS)
812 {
813
814 switch (n->norm->An.auth) {
815 case AUTH_split:
816 outflags &= ~MMAN_An_nosplit;
817 outflags |= MMAN_An_split;
818 return 0;
819 case AUTH_nosplit:
820 outflags &= ~MMAN_An_split;
821 outflags |= MMAN_An_nosplit;
822 return 0;
823 default:
824 if (MMAN_An_split & outflags)
825 outflags |= MMAN_br;
826 else if (SEC_AUTHORS == n->sec &&
827 ! (MMAN_An_nosplit & outflags))
828 outflags |= MMAN_An_split;
829 return 1;
830 }
831 }
832
833 static int
834 pre_ap(DECL_ARGS)
835 {
836
837 outflags &= ~MMAN_spc;
838 print_word("'");
839 outflags &= ~MMAN_spc;
840 return 0;
841 }
842
843 static int
844 pre_aq(DECL_ARGS)
845 {
846
847 print_word(n->child != NULL && n->child->next == NULL &&
848 n->child->tok == MDOC_Mt ? "<" : "\\(la");
849 outflags &= ~MMAN_spc;
850 return 1;
851 }
852
853 static void
854 post_aq(DECL_ARGS)
855 {
856
857 outflags &= ~(MMAN_spc | MMAN_nl);
858 print_word(n->child != NULL && n->child->next == NULL &&
859 n->child->tok == MDOC_Mt ? ">" : "\\(ra");
860 }
861
862 static int
863 pre_bd(DECL_ARGS)
864 {
865
866 outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br);
867
868 if (DISP_unfilled == n->norm->Bd.type ||
869 DISP_literal == n->norm->Bd.type)
870 print_line(".nf", 0);
871 if (0 == n->norm->Bd.comp && NULL != n->parent->prev)
872 outflags |= MMAN_sp;
873 print_offs(n->norm->Bd.offs, 1);
874 return 1;
875 }
876
877 static void
878 post_bd(DECL_ARGS)
879 {
880
881 /* Close out this display. */
882 print_line(".RE", MMAN_nl);
883 if (DISP_unfilled == n->norm->Bd.type ||
884 DISP_literal == n->norm->Bd.type)
885 print_line(".fi", MMAN_nl);
886
887 /* Maybe we are inside an enclosing list? */
888 if (NULL != n->parent->next)
889 mid_it();
890 }
891
892 static int
893 pre_bf(DECL_ARGS)
894 {
895
896 switch (n->type) {
897 case ROFFT_BLOCK:
898 return 1;
899 case ROFFT_BODY:
900 break;
901 default:
902 return 0;
903 }
904 switch (n->norm->Bf.font) {
905 case FONT_Em:
906 font_push('I');
907 break;
908 case FONT_Sy:
909 font_push('B');
910 break;
911 default:
912 font_push('R');
913 break;
914 }
915 return 1;
916 }
917
918 static void
919 post_bf(DECL_ARGS)
920 {
921
922 if (n->type == ROFFT_BODY)
923 font_pop();
924 }
925
926 static int
927 pre_bk(DECL_ARGS)
928 {
929
930 switch (n->type) {
931 case ROFFT_BLOCK:
932 return 1;
933 case ROFFT_BODY:
934 outflags |= MMAN_Bk;
935 return 1;
936 default:
937 return 0;
938 }
939 }
940
941 static void
942 post_bk(DECL_ARGS)
943 {
944
945 if (n->type == ROFFT_BODY)
946 outflags &= ~MMAN_Bk;
947 }
948
949 static int
950 pre_bl(DECL_ARGS)
951 {
952 size_t icol;
953
954 /*
955 * print_offs() will increase the -offset to account for
956 * a possible enclosing .It, but any enclosed .It blocks
957 * just nest and do not add up their indentation.
958 */
959 if (n->norm->Bl.offs) {
960 print_offs(n->norm->Bl.offs, 0);
961 Bl_stack[Bl_stack_len++] = 0;
962 }
963
964 switch (n->norm->Bl.type) {
965 case LIST_enum:
966 n->norm->Bl.count = 0;
967 return 1;
968 case LIST_column:
969 break;
970 default:
971 return 1;
972 }
973
974 if (n->child != NULL) {
975 print_line(".TS", MMAN_nl);
976 for (icol = 0; icol < n->norm->Bl.ncols; icol++)
977 print_word("l");
978 print_word(".");
979 }
980 outflags |= MMAN_nl;
981 return 1;
982 }
983
984 static void
985 post_bl(DECL_ARGS)
986 {
987
988 switch (n->norm->Bl.type) {
989 case LIST_column:
990 if (n->child != NULL)
991 print_line(".TE", 0);
992 break;
993 case LIST_enum:
994 n->norm->Bl.count = 0;
995 break;
996 default:
997 break;
998 }
999
1000 if (n->norm->Bl.offs) {
1001 print_line(".RE", MMAN_nl);
1002 assert(Bl_stack_len);
1003 Bl_stack_len--;
1004 assert(0 == Bl_stack[Bl_stack_len]);
1005 } else {
1006 outflags |= MMAN_PP | MMAN_nl;
1007 outflags &= ~(MMAN_sp | MMAN_br);
1008 }
1009
1010 /* Maybe we are inside an enclosing list? */
1011 if (NULL != n->parent->next)
1012 mid_it();
1013
1014 }
1015
1016 static int
1017 pre_br(DECL_ARGS)
1018 {
1019
1020 outflags |= MMAN_br;
1021 return 0;
1022 }
1023
1024 static int
1025 pre_dl(DECL_ARGS)
1026 {
1027
1028 print_offs("6n", 0);
1029 return 1;
1030 }
1031
1032 static void
1033 post_dl(DECL_ARGS)
1034 {
1035
1036 print_line(".RE", MMAN_nl);
1037
1038 /* Maybe we are inside an enclosing list? */
1039 if (NULL != n->parent->next)
1040 mid_it();
1041 }
1042
1043 static int
1044 pre_em(DECL_ARGS)
1045 {
1046
1047 font_push('I');
1048 return 1;
1049 }
1050
1051 static int
1052 pre_en(DECL_ARGS)
1053 {
1054
1055 if (NULL == n->norm->Es ||
1056 NULL == n->norm->Es->child)
1057 return 1;
1058
1059 print_word(n->norm->Es->child->string);
1060 outflags &= ~MMAN_spc;
1061 return 1;
1062 }
1063
1064 static void
1065 post_en(DECL_ARGS)
1066 {
1067
1068 if (NULL == n->norm->Es ||
1069 NULL == n->norm->Es->child ||
1070 NULL == n->norm->Es->child->next)
1071 return;
1072
1073 outflags &= ~MMAN_spc;
1074 print_word(n->norm->Es->child->next->string);
1075 return;
1076 }
1077
1078 static int
1079 pre_eo(DECL_ARGS)
1080 {
1081
1082 if (n->end == ENDBODY_NOT &&
1083 n->parent->head->child == NULL &&
1084 n->child != NULL &&
1085 n->child->end != ENDBODY_NOT)
1086 print_word("\\&");
1087 else if (n->end != ENDBODY_NOT ? n->child != NULL :
1088 n->parent->head->child != NULL && (n->child != NULL ||
1089 (n->parent->tail != NULL && n->parent->tail->child != NULL)))
1090 outflags &= ~(MMAN_spc | MMAN_nl);
1091 return 1;
1092 }
1093
1094 static void
1095 post_eo(DECL_ARGS)
1096 {
1097 int body, tail;
1098
1099 if (n->end != ENDBODY_NOT) {
1100 outflags |= MMAN_spc;
1101 return;
1102 }
1103
1104 body = n->child != NULL || n->parent->head->child != NULL;
1105 tail = n->parent->tail != NULL && n->parent->tail->child != NULL;
1106
1107 if (body && tail)
1108 outflags &= ~MMAN_spc;
1109 else if ( ! (body || tail))
1110 print_word("\\&");
1111 else if ( ! tail)
1112 outflags |= MMAN_spc;
1113 }
1114
1115 static int
1116 pre_fa(DECL_ARGS)
1117 {
1118 int am_Fa;
1119
1120 am_Fa = MDOC_Fa == n->tok;
1121
1122 if (am_Fa)
1123 n = n->child;
1124
1125 while (NULL != n) {
1126 font_push('I');
1127 if (am_Fa || NODE_SYNPRETTY & n->flags)
1128 outflags |= MMAN_nbrword;
1129 print_node(meta, n);
1130 font_pop();
1131 if (NULL != (n = n->next))
1132 print_word(",");
1133 }
1134 return 0;
1135 }
1136
1137 static void
1138 post_fa(DECL_ARGS)
1139 {
1140
1141 if (NULL != n->next && MDOC_Fa == n->next->tok)
1142 print_word(",");
1143 }
1144
1145 static int
1146 pre_fd(DECL_ARGS)
1147 {
1148
1149 pre_syn(n);
1150 font_push('B');
1151 return 1;
1152 }
1153
1154 static void
1155 post_fd(DECL_ARGS)
1156 {
1157
1158 font_pop();
1159 outflags |= MMAN_br;
1160 }
1161
1162 static int
1163 pre_fl(DECL_ARGS)
1164 {
1165
1166 font_push('B');
1167 print_word("\\-");
1168 if (n->child != NULL)
1169 outflags &= ~MMAN_spc;
1170 return 1;
1171 }
1172
1173 static void
1174 post_fl(DECL_ARGS)
1175 {
1176
1177 font_pop();
1178 if (!(n->child != NULL ||
1179 n->next == NULL ||
1180 n->next->type == ROFFT_TEXT ||
1181 n->next->flags & NODE_LINE))
1182 outflags &= ~MMAN_spc;
1183 }
1184
1185 static int
1186 pre_fn(DECL_ARGS)
1187 {
1188
1189 pre_syn(n);
1190
1191 n = n->child;
1192 if (NULL == n)
1193 return 0;
1194
1195 if (NODE_SYNPRETTY & n->flags)
1196 print_block(".HP 4n", MMAN_nl);
1197
1198 font_push('B');
1199 print_node(meta, n);
1200 font_pop();
1201 outflags &= ~MMAN_spc;
1202 print_word("(");
1203 outflags &= ~MMAN_spc;
1204
1205 n = n->next;
1206 if (NULL != n)
1207 pre_fa(meta, n);
1208 return 0;
1209 }
1210
1211 static void
1212 post_fn(DECL_ARGS)
1213 {
1214
1215 print_word(")");
1216 if (NODE_SYNPRETTY & n->flags) {
1217 print_word(";");
1218 outflags |= MMAN_PP;
1219 }
1220 }
1221
1222 static int
1223 pre_fo(DECL_ARGS)
1224 {
1225
1226 switch (n->type) {
1227 case ROFFT_BLOCK:
1228 pre_syn(n);
1229 break;
1230 case ROFFT_HEAD:
1231 if (n->child == NULL)
1232 return 0;
1233 if (NODE_SYNPRETTY & n->flags)
1234 print_block(".HP 4n", MMAN_nl);
1235 font_push('B');
1236 break;
1237 case ROFFT_BODY:
1238 outflags &= ~(MMAN_spc | MMAN_nl);
1239 print_word("(");
1240 outflags &= ~MMAN_spc;
1241 break;
1242 default:
1243 break;
1244 }
1245 return 1;
1246 }
1247
1248 static void
1249 post_fo(DECL_ARGS)
1250 {
1251
1252 switch (n->type) {
1253 case ROFFT_HEAD:
1254 if (n->child != NULL)
1255 font_pop();
1256 break;
1257 case ROFFT_BODY:
1258 post_fn(meta, n);
1259 break;
1260 default:
1261 break;
1262 }
1263 }
1264
1265 static int
1266 pre_ft(DECL_ARGS)
1267 {
1268
1269 pre_syn(n);
1270 font_push('I');
1271 return 1;
1272 }
1273
1274 static int
1275 pre_in(DECL_ARGS)
1276 {
1277
1278 if (NODE_SYNPRETTY & n->flags) {
1279 pre_syn(n);
1280 font_push('B');
1281 print_word("#include <");
1282 outflags &= ~MMAN_spc;
1283 } else {
1284 print_word("<");
1285 outflags &= ~MMAN_spc;
1286 font_push('I');
1287 }
1288 return 1;
1289 }
1290
1291 static void
1292 post_in(DECL_ARGS)
1293 {
1294
1295 if (NODE_SYNPRETTY & n->flags) {
1296 outflags &= ~MMAN_spc;
1297 print_word(">");
1298 font_pop();
1299 outflags |= MMAN_br;
1300 } else {
1301 font_pop();
1302 outflags &= ~MMAN_spc;
1303 print_word(">");
1304 }
1305 }
1306
1307 static int
1308 pre_it(DECL_ARGS)
1309 {
1310 const struct roff_node *bln;
1311
1312 switch (n->type) {
1313 case ROFFT_HEAD:
1314 outflags |= MMAN_PP | MMAN_nl;
1315 bln = n->parent->parent;
1316 if (0 == bln->norm->Bl.comp ||
1317 (NULL == n->parent->prev &&
1318 NULL == bln->parent->prev))
1319 outflags |= MMAN_sp;
1320 outflags &= ~MMAN_br;
1321 switch (bln->norm->Bl.type) {
1322 case LIST_item:
1323 return 0;
1324 case LIST_inset:
1325 case LIST_diag:
1326 case LIST_ohang:
1327 if (bln->norm->Bl.type == LIST_diag)
1328 print_line(".B \"", 0);
1329 else
1330 print_line(".R \"", 0);
1331 outflags &= ~MMAN_spc;
1332 return 1;
1333 case LIST_bullet:
1334 case LIST_dash:
1335 case LIST_hyphen:
1336 print_width(&bln->norm->Bl, NULL);
1337 TPremain = 0;
1338 outflags |= MMAN_nl;
1339 font_push('B');
1340 if (LIST_bullet == bln->norm->Bl.type)
1341 print_word("\\(bu");
1342 else
1343 print_word("-");
1344 font_pop();
1345 outflags |= MMAN_nl;
1346 return 0;
1347 case LIST_enum:
1348 print_width(&bln->norm->Bl, NULL);
1349 TPremain = 0;
1350 outflags |= MMAN_nl;
1351 print_count(&bln->norm->Bl.count);
1352 outflags |= MMAN_nl;
1353 return 0;
1354 case LIST_hang:
1355 print_width(&bln->norm->Bl, n->child);
1356 TPremain = 0;
1357 outflags |= MMAN_nl;
1358 return 1;
1359 case LIST_tag:
1360 print_width(&bln->norm->Bl, n->child);
1361 putchar('\n');
1362 outflags &= ~MMAN_spc;
1363 return 1;
1364 default:
1365 return 1;
1366 }
1367 default:
1368 break;
1369 }
1370 return 1;
1371 }
1372
1373 /*
1374 * This function is called after closing out an indented block.
1375 * If we are inside an enclosing list, restore its indentation.
1376 */
1377 static void
1378 mid_it(void)
1379 {
1380 char buf[24];
1381
1382 /* Nothing to do outside a list. */
1383 if (0 == Bl_stack_len || 0 == Bl_stack[Bl_stack_len - 1])
1384 return;
1385
1386 /* The indentation has already been set up. */
1387 if (Bl_stack_post[Bl_stack_len - 1])
1388 return;
1389
1390 /* Restore the indentation of the enclosing list. */
1391 print_line(".RS", MMAN_Bk_susp);
1392 (void)snprintf(buf, sizeof(buf), "%dn",
1393 Bl_stack[Bl_stack_len - 1]);
1394 print_word(buf);
1395
1396 /* Remeber to close out this .RS block later. */
1397 Bl_stack_post[Bl_stack_len - 1] = 1;
1398 }
1399
1400 static void
1401 post_it(DECL_ARGS)
1402 {
1403 const struct roff_node *bln;
1404
1405 bln = n->parent->parent;
1406
1407 switch (n->type) {
1408 case ROFFT_HEAD:
1409 switch (bln->norm->Bl.type) {
1410 case LIST_diag:
1411 outflags &= ~MMAN_spc;
1412 print_word("\\ ");
1413 break;
1414 case LIST_ohang:
1415 outflags |= MMAN_br;
1416 break;
1417 default:
1418 break;
1419 }
1420 break;
1421 case ROFFT_BODY:
1422 switch (bln->norm->Bl.type) {
1423 case LIST_bullet:
1424 case LIST_dash:
1425 case LIST_hyphen:
1426 case LIST_enum:
1427 case LIST_hang:
1428 case LIST_tag:
1429 assert(Bl_stack_len);
1430 Bl_stack[--Bl_stack_len] = 0;
1431
1432 /*
1433 * Our indentation had to be restored
1434 * after a child display or child list.
1435 * Close out that indentation block now.
1436 */
1437 if (Bl_stack_post[Bl_stack_len]) {
1438 print_line(".RE", MMAN_nl);
1439 Bl_stack_post[Bl_stack_len] = 0;
1440 }
1441 break;
1442 case LIST_column:
1443 if (NULL != n->next) {
1444 putchar('\t');
1445 outflags &= ~MMAN_spc;
1446 }
1447 break;
1448 default:
1449 break;
1450 }
1451 break;
1452 default:
1453 break;
1454 }
1455 }
1456
1457 static void
1458 post_lb(DECL_ARGS)
1459 {
1460
1461 if (SEC_LIBRARY == n->sec)
1462 outflags |= MMAN_br;
1463 }
1464
1465 static int
1466 pre_lk(DECL_ARGS)
1467 {
1468 const struct roff_node *link, *descr;
1469
1470 if (NULL == (link = n->child))
1471 return 0;
1472
1473 if (NULL != (descr = link->next)) {
1474 font_push('I');
1475 while (NULL != descr) {
1476 print_word(descr->string);
1477 descr = descr->next;
1478 }
1479 print_word(":");
1480 font_pop();
1481 }
1482
1483 font_push('B');
1484 print_word(link->string);
1485 font_pop();
1486 return 0;
1487 }
1488
1489 static int
1490 pre_ll(DECL_ARGS)
1491 {
1492
1493 print_line(".ll", 0);
1494 return 1;
1495 }
1496
1497 static int
1498 pre_li(DECL_ARGS)
1499 {
1500
1501 font_push('R');
1502 return 1;
1503 }
1504
1505 static int
1506 pre_nm(DECL_ARGS)
1507 {
1508 char *name;
1509
1510 if (n->type == ROFFT_BLOCK) {
1511 outflags |= MMAN_Bk;
1512 pre_syn(n);
1513 }
1514 if (n->type != ROFFT_ELEM && n->type != ROFFT_HEAD)
1515 return 1;
1516 name = n->child == NULL ? NULL : n->child->string;
1517 if (NULL == name)
1518 return 0;
1519 if (n->type == ROFFT_HEAD) {
1520 if (NULL == n->parent->prev)
1521 outflags |= MMAN_sp;
1522 print_block(".HP", 0);
1523 printf(" %zun", strlen(name) + 1);
1524 outflags |= MMAN_nl;
1525 }
1526 font_push('B');
1527 return 1;
1528 }
1529
1530 static void
1531 post_nm(DECL_ARGS)
1532 {
1533
1534 switch (n->type) {
1535 case ROFFT_BLOCK:
1536 outflags &= ~MMAN_Bk;
1537 break;
1538 case ROFFT_HEAD:
1539 case ROFFT_ELEM:
1540 if (n->child != NULL && n->child->string != NULL)
1541 font_pop();
1542 break;
1543 default:
1544 break;
1545 }
1546 }
1547
1548 static int
1549 pre_no(DECL_ARGS)
1550 {
1551
1552 outflags |= MMAN_spc_force;
1553 return 1;
1554 }
1555
1556 static int
1557 pre_ns(DECL_ARGS)
1558 {
1559
1560 outflags &= ~MMAN_spc;
1561 return 0;
1562 }
1563
1564 static void
1565 post_pf(DECL_ARGS)
1566 {
1567
1568 if ( ! (n->next == NULL || n->next->flags & NODE_LINE))
1569 outflags &= ~MMAN_spc;
1570 }
1571
1572 static int
1573 pre_pp(DECL_ARGS)
1574 {
1575
1576 if (MDOC_It != n->parent->tok)
1577 outflags |= MMAN_PP;
1578 outflags |= MMAN_sp | MMAN_nl;
1579 outflags &= ~MMAN_br;
1580 return 0;
1581 }
1582
1583 static int
1584 pre_rs(DECL_ARGS)
1585 {
1586
1587 if (SEC_SEE_ALSO == n->sec) {
1588 outflags |= MMAN_PP | MMAN_sp | MMAN_nl;
1589 outflags &= ~MMAN_br;
1590 }
1591 return 1;
1592 }
1593
1594 static int
1595 pre_skip(DECL_ARGS)
1596 {
1597
1598 return 0;
1599 }
1600
1601 static int
1602 pre_sm(DECL_ARGS)
1603 {
1604
1605 if (NULL == n->child)
1606 outflags ^= MMAN_Sm;
1607 else if (0 == strcmp("on", n->child->string))
1608 outflags |= MMAN_Sm;
1609 else
1610 outflags &= ~MMAN_Sm;
1611
1612 if (MMAN_Sm & outflags)
1613 outflags |= MMAN_spc;
1614
1615 return 0;
1616 }
1617
1618 static int
1619 pre_sp(DECL_ARGS)
1620 {
1621
1622 if (MMAN_PP & outflags) {
1623 outflags &= ~MMAN_PP;
1624 print_line(".PP", 0);
1625 } else
1626 print_line(".sp", 0);
1627 return 1;
1628 }
1629
1630 static void
1631 post_sp(DECL_ARGS)
1632 {
1633
1634 outflags |= MMAN_nl;
1635 }
1636
1637 static int
1638 pre_sy(DECL_ARGS)
1639 {
1640
1641 font_push('B');
1642 return 1;
1643 }
1644
1645 static int
1646 pre_vt(DECL_ARGS)
1647 {
1648
1649 if (NODE_SYNPRETTY & n->flags) {
1650 switch (n->type) {
1651 case ROFFT_BLOCK:
1652 pre_syn(n);
1653 return 1;
1654 case ROFFT_BODY:
1655 break;
1656 default:
1657 return 0;
1658 }
1659 }
1660 font_push('I');
1661 return 1;
1662 }
1663
1664 static void
1665 post_vt(DECL_ARGS)
1666 {
1667
1668 if (n->flags & NODE_SYNPRETTY && n->type != ROFFT_BODY)
1669 return;
1670 font_pop();
1671 }
1672
1673 static int
1674 pre_xr(DECL_ARGS)
1675 {
1676
1677 n = n->child;
1678 if (NULL == n)
1679 return 0;
1680 print_node(meta, n);
1681 n = n->next;
1682 if (NULL == n)
1683 return 0;
1684 outflags &= ~MMAN_spc;
1685 print_word("(");
1686 print_node(meta, n);
1687 print_word(")");
1688 return 0;
1689 }
Unleashed OS