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[mandoc.git] / mdoc_man.c
1 /* $Id: mdoc_man.c,v 1.101 2017/01/11 17:39:53 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 if (ENDBODY_NOSPACE == n->end)
644 outflags &= ~(MMAN_spc | MMAN_nl);
645 }
646
647 static int
648 cond_head(DECL_ARGS)
649 {
650
651 return n->type == ROFFT_HEAD;
652 }
653
654 static int
655 cond_body(DECL_ARGS)
656 {
657
658 return n->type == ROFFT_BODY;
659 }
660
661 static int
662 pre_enc(DECL_ARGS)
663 {
664 const char *prefix;
665
666 prefix = manacts[n->tok].prefix;
667 if (NULL == prefix)
668 return 1;
669 print_word(prefix);
670 outflags &= ~MMAN_spc;
671 return 1;
672 }
673
674 static void
675 post_enc(DECL_ARGS)
676 {
677 const char *suffix;
678
679 suffix = manacts[n->tok].suffix;
680 if (NULL == suffix)
681 return;
682 outflags &= ~(MMAN_spc | MMAN_nl);
683 print_word(suffix);
684 }
685
686 static int
687 pre_ex(DECL_ARGS)
688 {
689 outflags |= MMAN_br | MMAN_nl;
690 return 1;
691 }
692
693 static void
694 post_font(DECL_ARGS)
695 {
696
697 font_pop();
698 }
699
700 static void
701 post_percent(DECL_ARGS)
702 {
703
704 if (pre_em == manacts[n->tok].pre)
705 font_pop();
706 if (n->next) {
707 print_word(",");
708 if (n->prev && n->prev->tok == n->tok &&
709 n->next->tok == n->tok)
710 print_word("and");
711 } else {
712 print_word(".");
713 outflags |= MMAN_nl;
714 }
715 }
716
717 static int
718 pre__t(DECL_ARGS)
719 {
720
721 if (n->parent && MDOC_Rs == n->parent->tok &&
722 n->parent->norm->Rs.quote_T) {
723 print_word("");
724 putchar('\"');
725 outflags &= ~MMAN_spc;
726 } else
727 font_push('I');
728 return 1;
729 }
730
731 static void
732 post__t(DECL_ARGS)
733 {
734
735 if (n->parent && MDOC_Rs == n->parent->tok &&
736 n->parent->norm->Rs.quote_T) {
737 outflags &= ~MMAN_spc;
738 print_word("");
739 putchar('\"');
740 } else
741 font_pop();
742 post_percent(meta, n);
743 }
744
745 /*
746 * Print before a section header.
747 */
748 static int
749 pre_sect(DECL_ARGS)
750 {
751
752 if (n->type == ROFFT_HEAD) {
753 outflags |= MMAN_sp;
754 print_block(manacts[n->tok].prefix, 0);
755 print_word("");
756 putchar('\"');
757 outflags &= ~MMAN_spc;
758 }
759 return 1;
760 }
761
762 /*
763 * Print subsequent a section header.
764 */
765 static void
766 post_sect(DECL_ARGS)
767 {
768
769 if (n->type != ROFFT_HEAD)
770 return;
771 outflags &= ~MMAN_spc;
772 print_word("");
773 putchar('\"');
774 outflags |= MMAN_nl;
775 if (MDOC_Sh == n->tok && SEC_AUTHORS == n->sec)
776 outflags &= ~(MMAN_An_split | MMAN_An_nosplit);
777 }
778
779 /* See mdoc_term.c, synopsis_pre() for comments. */
780 static void
781 pre_syn(const struct roff_node *n)
782 {
783
784 if (NULL == n->prev || ! (NODE_SYNPRETTY & n->flags))
785 return;
786
787 if (n->prev->tok == n->tok &&
788 MDOC_Ft != n->tok &&
789 MDOC_Fo != n->tok &&
790 MDOC_Fn != n->tok) {
791 outflags |= MMAN_br;
792 return;
793 }
794
795 switch (n->prev->tok) {
796 case MDOC_Fd:
797 case MDOC_Fn:
798 case MDOC_Fo:
799 case MDOC_In:
800 case MDOC_Vt:
801 outflags |= MMAN_sp;
802 break;
803 case MDOC_Ft:
804 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
805 outflags |= MMAN_sp;
806 break;
807 }
808 /* FALLTHROUGH */
809 default:
810 outflags |= MMAN_br;
811 break;
812 }
813 }
814
815 static int
816 pre_an(DECL_ARGS)
817 {
818
819 switch (n->norm->An.auth) {
820 case AUTH_split:
821 outflags &= ~MMAN_An_nosplit;
822 outflags |= MMAN_An_split;
823 return 0;
824 case AUTH_nosplit:
825 outflags &= ~MMAN_An_split;
826 outflags |= MMAN_An_nosplit;
827 return 0;
828 default:
829 if (MMAN_An_split & outflags)
830 outflags |= MMAN_br;
831 else if (SEC_AUTHORS == n->sec &&
832 ! (MMAN_An_nosplit & outflags))
833 outflags |= MMAN_An_split;
834 return 1;
835 }
836 }
837
838 static int
839 pre_ap(DECL_ARGS)
840 {
841
842 outflags &= ~MMAN_spc;
843 print_word("'");
844 outflags &= ~MMAN_spc;
845 return 0;
846 }
847
848 static int
849 pre_aq(DECL_ARGS)
850 {
851
852 print_word(n->child != NULL && n->child->next == NULL &&
853 n->child->tok == MDOC_Mt ? "<" : "\\(la");
854 outflags &= ~MMAN_spc;
855 return 1;
856 }
857
858 static void
859 post_aq(DECL_ARGS)
860 {
861
862 outflags &= ~(MMAN_spc | MMAN_nl);
863 print_word(n->child != NULL && n->child->next == NULL &&
864 n->child->tok == MDOC_Mt ? ">" : "\\(ra");
865 }
866
867 static int
868 pre_bd(DECL_ARGS)
869 {
870
871 outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br);
872
873 if (DISP_unfilled == n->norm->Bd.type ||
874 DISP_literal == n->norm->Bd.type)
875 print_line(".nf", 0);
876 if (0 == n->norm->Bd.comp && NULL != n->parent->prev)
877 outflags |= MMAN_sp;
878 print_offs(n->norm->Bd.offs, 1);
879 return 1;
880 }
881
882 static void
883 post_bd(DECL_ARGS)
884 {
885
886 /* Close out this display. */
887 print_line(".RE", MMAN_nl);
888 if (DISP_unfilled == n->norm->Bd.type ||
889 DISP_literal == n->norm->Bd.type)
890 print_line(".fi", MMAN_nl);
891
892 /* Maybe we are inside an enclosing list? */
893 if (NULL != n->parent->next)
894 mid_it();
895 }
896
897 static int
898 pre_bf(DECL_ARGS)
899 {
900
901 switch (n->type) {
902 case ROFFT_BLOCK:
903 return 1;
904 case ROFFT_BODY:
905 break;
906 default:
907 return 0;
908 }
909 switch (n->norm->Bf.font) {
910 case FONT_Em:
911 font_push('I');
912 break;
913 case FONT_Sy:
914 font_push('B');
915 break;
916 default:
917 font_push('R');
918 break;
919 }
920 return 1;
921 }
922
923 static void
924 post_bf(DECL_ARGS)
925 {
926
927 if (n->type == ROFFT_BODY)
928 font_pop();
929 }
930
931 static int
932 pre_bk(DECL_ARGS)
933 {
934
935 switch (n->type) {
936 case ROFFT_BLOCK:
937 return 1;
938 case ROFFT_BODY:
939 outflags |= MMAN_Bk;
940 return 1;
941 default:
942 return 0;
943 }
944 }
945
946 static void
947 post_bk(DECL_ARGS)
948 {
949
950 if (n->type == ROFFT_BODY)
951 outflags &= ~MMAN_Bk;
952 }
953
954 static int
955 pre_bl(DECL_ARGS)
956 {
957 size_t icol;
958
959 /*
960 * print_offs() will increase the -offset to account for
961 * a possible enclosing .It, but any enclosed .It blocks
962 * just nest and do not add up their indentation.
963 */
964 if (n->norm->Bl.offs) {
965 print_offs(n->norm->Bl.offs, 0);
966 Bl_stack[Bl_stack_len++] = 0;
967 }
968
969 switch (n->norm->Bl.type) {
970 case LIST_enum:
971 n->norm->Bl.count = 0;
972 return 1;
973 case LIST_column:
974 break;
975 default:
976 return 1;
977 }
978
979 if (n->child != NULL) {
980 print_line(".TS", MMAN_nl);
981 for (icol = 0; icol < n->norm->Bl.ncols; icol++)
982 print_word("l");
983 print_word(".");
984 }
985 outflags |= MMAN_nl;
986 return 1;
987 }
988
989 static void
990 post_bl(DECL_ARGS)
991 {
992
993 switch (n->norm->Bl.type) {
994 case LIST_column:
995 if (n->child != NULL)
996 print_line(".TE", 0);
997 break;
998 case LIST_enum:
999 n->norm->Bl.count = 0;
1000 break;
1001 default:
1002 break;
1003 }
1004
1005 if (n->norm->Bl.offs) {
1006 print_line(".RE", MMAN_nl);
1007 assert(Bl_stack_len);
1008 Bl_stack_len--;
1009 assert(0 == Bl_stack[Bl_stack_len]);
1010 } else {
1011 outflags |= MMAN_PP | MMAN_nl;
1012 outflags &= ~(MMAN_sp | MMAN_br);
1013 }
1014
1015 /* Maybe we are inside an enclosing list? */
1016 if (NULL != n->parent->next)
1017 mid_it();
1018
1019 }
1020
1021 static int
1022 pre_br(DECL_ARGS)
1023 {
1024
1025 outflags |= MMAN_br;
1026 return 0;
1027 }
1028
1029 static int
1030 pre_dl(DECL_ARGS)
1031 {
1032
1033 print_offs("6n", 0);
1034 return 1;
1035 }
1036
1037 static void
1038 post_dl(DECL_ARGS)
1039 {
1040
1041 print_line(".RE", MMAN_nl);
1042
1043 /* Maybe we are inside an enclosing list? */
1044 if (NULL != n->parent->next)
1045 mid_it();
1046 }
1047
1048 static int
1049 pre_em(DECL_ARGS)
1050 {
1051
1052 font_push('I');
1053 return 1;
1054 }
1055
1056 static int
1057 pre_en(DECL_ARGS)
1058 {
1059
1060 if (NULL == n->norm->Es ||
1061 NULL == n->norm->Es->child)
1062 return 1;
1063
1064 print_word(n->norm->Es->child->string);
1065 outflags &= ~MMAN_spc;
1066 return 1;
1067 }
1068
1069 static void
1070 post_en(DECL_ARGS)
1071 {
1072
1073 if (NULL == n->norm->Es ||
1074 NULL == n->norm->Es->child ||
1075 NULL == n->norm->Es->child->next)
1076 return;
1077
1078 outflags &= ~MMAN_spc;
1079 print_word(n->norm->Es->child->next->string);
1080 return;
1081 }
1082
1083 static int
1084 pre_eo(DECL_ARGS)
1085 {
1086
1087 if (n->end == ENDBODY_NOT &&
1088 n->parent->head->child == NULL &&
1089 n->child != NULL &&
1090 n->child->end != ENDBODY_NOT)
1091 print_word("\\&");
1092 else if (n->end != ENDBODY_NOT ? n->child != NULL :
1093 n->parent->head->child != NULL && (n->child != NULL ||
1094 (n->parent->tail != NULL && n->parent->tail->child != NULL)))
1095 outflags &= ~(MMAN_spc | MMAN_nl);
1096 return 1;
1097 }
1098
1099 static void
1100 post_eo(DECL_ARGS)
1101 {
1102 int body, tail;
1103
1104 if (n->end != ENDBODY_NOT) {
1105 outflags |= MMAN_spc;
1106 return;
1107 }
1108
1109 body = n->child != NULL || n->parent->head->child != NULL;
1110 tail = n->parent->tail != NULL && n->parent->tail->child != NULL;
1111
1112 if (body && tail)
1113 outflags &= ~MMAN_spc;
1114 else if ( ! (body || tail))
1115 print_word("\\&");
1116 else if ( ! tail)
1117 outflags |= MMAN_spc;
1118 }
1119
1120 static int
1121 pre_fa(DECL_ARGS)
1122 {
1123 int am_Fa;
1124
1125 am_Fa = MDOC_Fa == n->tok;
1126
1127 if (am_Fa)
1128 n = n->child;
1129
1130 while (NULL != n) {
1131 font_push('I');
1132 if (am_Fa || NODE_SYNPRETTY & n->flags)
1133 outflags |= MMAN_nbrword;
1134 print_node(meta, n);
1135 font_pop();
1136 if (NULL != (n = n->next))
1137 print_word(",");
1138 }
1139 return 0;
1140 }
1141
1142 static void
1143 post_fa(DECL_ARGS)
1144 {
1145
1146 if (NULL != n->next && MDOC_Fa == n->next->tok)
1147 print_word(",");
1148 }
1149
1150 static int
1151 pre_fd(DECL_ARGS)
1152 {
1153
1154 pre_syn(n);
1155 font_push('B');
1156 return 1;
1157 }
1158
1159 static void
1160 post_fd(DECL_ARGS)
1161 {
1162
1163 font_pop();
1164 outflags |= MMAN_br;
1165 }
1166
1167 static int
1168 pre_fl(DECL_ARGS)
1169 {
1170
1171 font_push('B');
1172 print_word("\\-");
1173 if (n->child != NULL)
1174 outflags &= ~MMAN_spc;
1175 return 1;
1176 }
1177
1178 static void
1179 post_fl(DECL_ARGS)
1180 {
1181
1182 font_pop();
1183 if (!(n->child != NULL ||
1184 n->next == NULL ||
1185 n->next->type == ROFFT_TEXT ||
1186 n->next->flags & NODE_LINE))
1187 outflags &= ~MMAN_spc;
1188 }
1189
1190 static int
1191 pre_fn(DECL_ARGS)
1192 {
1193
1194 pre_syn(n);
1195
1196 n = n->child;
1197 if (NULL == n)
1198 return 0;
1199
1200 if (NODE_SYNPRETTY & n->flags)
1201 print_block(".HP 4n", MMAN_nl);
1202
1203 font_push('B');
1204 print_node(meta, n);
1205 font_pop();
1206 outflags &= ~MMAN_spc;
1207 print_word("(");
1208 outflags &= ~MMAN_spc;
1209
1210 n = n->next;
1211 if (NULL != n)
1212 pre_fa(meta, n);
1213 return 0;
1214 }
1215
1216 static void
1217 post_fn(DECL_ARGS)
1218 {
1219
1220 print_word(")");
1221 if (NODE_SYNPRETTY & n->flags) {
1222 print_word(";");
1223 outflags |= MMAN_PP;
1224 }
1225 }
1226
1227 static int
1228 pre_fo(DECL_ARGS)
1229 {
1230
1231 switch (n->type) {
1232 case ROFFT_BLOCK:
1233 pre_syn(n);
1234 break;
1235 case ROFFT_HEAD:
1236 if (n->child == NULL)
1237 return 0;
1238 if (NODE_SYNPRETTY & n->flags)
1239 print_block(".HP 4n", MMAN_nl);
1240 font_push('B');
1241 break;
1242 case ROFFT_BODY:
1243 outflags &= ~(MMAN_spc | MMAN_nl);
1244 print_word("(");
1245 outflags &= ~MMAN_spc;
1246 break;
1247 default:
1248 break;
1249 }
1250 return 1;
1251 }
1252
1253 static void
1254 post_fo(DECL_ARGS)
1255 {
1256
1257 switch (n->type) {
1258 case ROFFT_HEAD:
1259 if (n->child != NULL)
1260 font_pop();
1261 break;
1262 case ROFFT_BODY:
1263 post_fn(meta, n);
1264 break;
1265 default:
1266 break;
1267 }
1268 }
1269
1270 static int
1271 pre_ft(DECL_ARGS)
1272 {
1273
1274 pre_syn(n);
1275 font_push('I');
1276 return 1;
1277 }
1278
1279 static int
1280 pre_in(DECL_ARGS)
1281 {
1282
1283 if (NODE_SYNPRETTY & n->flags) {
1284 pre_syn(n);
1285 font_push('B');
1286 print_word("#include <");
1287 outflags &= ~MMAN_spc;
1288 } else {
1289 print_word("<");
1290 outflags &= ~MMAN_spc;
1291 font_push('I');
1292 }
1293 return 1;
1294 }
1295
1296 static void
1297 post_in(DECL_ARGS)
1298 {
1299
1300 if (NODE_SYNPRETTY & n->flags) {
1301 outflags &= ~MMAN_spc;
1302 print_word(">");
1303 font_pop();
1304 outflags |= MMAN_br;
1305 } else {
1306 font_pop();
1307 outflags &= ~MMAN_spc;
1308 print_word(">");
1309 }
1310 }
1311
1312 static int
1313 pre_it(DECL_ARGS)
1314 {
1315 const struct roff_node *bln;
1316
1317 switch (n->type) {
1318 case ROFFT_HEAD:
1319 outflags |= MMAN_PP | MMAN_nl;
1320 bln = n->parent->parent;
1321 if (0 == bln->norm->Bl.comp ||
1322 (NULL == n->parent->prev &&
1323 NULL == bln->parent->prev))
1324 outflags |= MMAN_sp;
1325 outflags &= ~MMAN_br;
1326 switch (bln->norm->Bl.type) {
1327 case LIST_item:
1328 return 0;
1329 case LIST_inset:
1330 case LIST_diag:
1331 case LIST_ohang:
1332 if (bln->norm->Bl.type == LIST_diag)
1333 print_line(".B \"", 0);
1334 else
1335 print_line(".R \"", 0);
1336 outflags &= ~MMAN_spc;
1337 return 1;
1338 case LIST_bullet:
1339 case LIST_dash:
1340 case LIST_hyphen:
1341 print_width(&bln->norm->Bl, NULL);
1342 TPremain = 0;
1343 outflags |= MMAN_nl;
1344 font_push('B');
1345 if (LIST_bullet == bln->norm->Bl.type)
1346 print_word("\\(bu");
1347 else
1348 print_word("-");
1349 font_pop();
1350 outflags |= MMAN_nl;
1351 return 0;
1352 case LIST_enum:
1353 print_width(&bln->norm->Bl, NULL);
1354 TPremain = 0;
1355 outflags |= MMAN_nl;
1356 print_count(&bln->norm->Bl.count);
1357 outflags |= MMAN_nl;
1358 return 0;
1359 case LIST_hang:
1360 print_width(&bln->norm->Bl, n->child);
1361 TPremain = 0;
1362 outflags |= MMAN_nl;
1363 return 1;
1364 case LIST_tag:
1365 print_width(&bln->norm->Bl, n->child);
1366 putchar('\n');
1367 outflags &= ~MMAN_spc;
1368 return 1;
1369 default:
1370 return 1;
1371 }
1372 default:
1373 break;
1374 }
1375 return 1;
1376 }
1377
1378 /*
1379 * This function is called after closing out an indented block.
1380 * If we are inside an enclosing list, restore its indentation.
1381 */
1382 static void
1383 mid_it(void)
1384 {
1385 char buf[24];
1386
1387 /* Nothing to do outside a list. */
1388 if (0 == Bl_stack_len || 0 == Bl_stack[Bl_stack_len - 1])
1389 return;
1390
1391 /* The indentation has already been set up. */
1392 if (Bl_stack_post[Bl_stack_len - 1])
1393 return;
1394
1395 /* Restore the indentation of the enclosing list. */
1396 print_line(".RS", MMAN_Bk_susp);
1397 (void)snprintf(buf, sizeof(buf), "%dn",
1398 Bl_stack[Bl_stack_len - 1]);
1399 print_word(buf);
1400
1401 /* Remeber to close out this .RS block later. */
1402 Bl_stack_post[Bl_stack_len - 1] = 1;
1403 }
1404
1405 static void
1406 post_it(DECL_ARGS)
1407 {
1408 const struct roff_node *bln;
1409
1410 bln = n->parent->parent;
1411
1412 switch (n->type) {
1413 case ROFFT_HEAD:
1414 switch (bln->norm->Bl.type) {
1415 case LIST_diag:
1416 outflags &= ~MMAN_spc;
1417 print_word("\\ ");
1418 break;
1419 case LIST_ohang:
1420 outflags |= MMAN_br;
1421 break;
1422 default:
1423 break;
1424 }
1425 break;
1426 case ROFFT_BODY:
1427 switch (bln->norm->Bl.type) {
1428 case LIST_bullet:
1429 case LIST_dash:
1430 case LIST_hyphen:
1431 case LIST_enum:
1432 case LIST_hang:
1433 case LIST_tag:
1434 assert(Bl_stack_len);
1435 Bl_stack[--Bl_stack_len] = 0;
1436
1437 /*
1438 * Our indentation had to be restored
1439 * after a child display or child list.
1440 * Close out that indentation block now.
1441 */
1442 if (Bl_stack_post[Bl_stack_len]) {
1443 print_line(".RE", MMAN_nl);
1444 Bl_stack_post[Bl_stack_len] = 0;
1445 }
1446 break;
1447 case LIST_column:
1448 if (NULL != n->next) {
1449 putchar('\t');
1450 outflags &= ~MMAN_spc;
1451 }
1452 break;
1453 default:
1454 break;
1455 }
1456 break;
1457 default:
1458 break;
1459 }
1460 }
1461
1462 static void
1463 post_lb(DECL_ARGS)
1464 {
1465
1466 if (SEC_LIBRARY == n->sec)
1467 outflags |= MMAN_br;
1468 }
1469
1470 static int
1471 pre_lk(DECL_ARGS)
1472 {
1473 const struct roff_node *link, *descr;
1474
1475 if (NULL == (link = n->child))
1476 return 0;
1477
1478 if (NULL != (descr = link->next)) {
1479 font_push('I');
1480 while (NULL != descr) {
1481 print_word(descr->string);
1482 descr = descr->next;
1483 }
1484 print_word(":");
1485 font_pop();
1486 }
1487
1488 font_push('B');
1489 print_word(link->string);
1490 font_pop();
1491 return 0;
1492 }
1493
1494 static int
1495 pre_ll(DECL_ARGS)
1496 {
1497
1498 print_line(".ll", 0);
1499 return 1;
1500 }
1501
1502 static int
1503 pre_li(DECL_ARGS)
1504 {
1505
1506 font_push('R');
1507 return 1;
1508 }
1509
1510 static int
1511 pre_nm(DECL_ARGS)
1512 {
1513 char *name;
1514
1515 if (n->type == ROFFT_BLOCK) {
1516 outflags |= MMAN_Bk;
1517 pre_syn(n);
1518 }
1519 if (n->type != ROFFT_ELEM && n->type != ROFFT_HEAD)
1520 return 1;
1521 name = n->child ? n->child->string : meta->name;
1522 if (NULL == name)
1523 return 0;
1524 if (n->type == ROFFT_HEAD) {
1525 if (NULL == n->parent->prev)
1526 outflags |= MMAN_sp;
1527 print_block(".HP", 0);
1528 printf(" %zun", strlen(name) + 1);
1529 outflags |= MMAN_nl;
1530 }
1531 font_push('B');
1532 if (NULL == n->child)
1533 print_word(meta->name);
1534 return 1;
1535 }
1536
1537 static void
1538 post_nm(DECL_ARGS)
1539 {
1540
1541 switch (n->type) {
1542 case ROFFT_BLOCK:
1543 outflags &= ~MMAN_Bk;
1544 break;
1545 case ROFFT_HEAD:
1546 case ROFFT_ELEM:
1547 if (n->child != NULL || meta->name != NULL)
1548 font_pop();
1549 break;
1550 default:
1551 break;
1552 }
1553 }
1554
1555 static int
1556 pre_no(DECL_ARGS)
1557 {
1558
1559 outflags |= MMAN_spc_force;
1560 return 1;
1561 }
1562
1563 static int
1564 pre_ns(DECL_ARGS)
1565 {
1566
1567 outflags &= ~MMAN_spc;
1568 return 0;
1569 }
1570
1571 static void
1572 post_pf(DECL_ARGS)
1573 {
1574
1575 if ( ! (n->next == NULL || n->next->flags & NODE_LINE))
1576 outflags &= ~MMAN_spc;
1577 }
1578
1579 static int
1580 pre_pp(DECL_ARGS)
1581 {
1582
1583 if (MDOC_It != n->parent->tok)
1584 outflags |= MMAN_PP;
1585 outflags |= MMAN_sp | MMAN_nl;
1586 outflags &= ~MMAN_br;
1587 return 0;
1588 }
1589
1590 static int
1591 pre_rs(DECL_ARGS)
1592 {
1593
1594 if (SEC_SEE_ALSO == n->sec) {
1595 outflags |= MMAN_PP | MMAN_sp | MMAN_nl;
1596 outflags &= ~MMAN_br;
1597 }
1598 return 1;
1599 }
1600
1601 static int
1602 pre_skip(DECL_ARGS)
1603 {
1604
1605 return 0;
1606 }
1607
1608 static int
1609 pre_sm(DECL_ARGS)
1610 {
1611
1612 if (NULL == n->child)
1613 outflags ^= MMAN_Sm;
1614 else if (0 == strcmp("on", n->child->string))
1615 outflags |= MMAN_Sm;
1616 else
1617 outflags &= ~MMAN_Sm;
1618
1619 if (MMAN_Sm & outflags)
1620 outflags |= MMAN_spc;
1621
1622 return 0;
1623 }
1624
1625 static int
1626 pre_sp(DECL_ARGS)
1627 {
1628
1629 if (MMAN_PP & outflags) {
1630 outflags &= ~MMAN_PP;
1631 print_line(".PP", 0);
1632 } else
1633 print_line(".sp", 0);
1634 return 1;
1635 }
1636
1637 static void
1638 post_sp(DECL_ARGS)
1639 {
1640
1641 outflags |= MMAN_nl;
1642 }
1643
1644 static int
1645 pre_sy(DECL_ARGS)
1646 {
1647
1648 font_push('B');
1649 return 1;
1650 }
1651
1652 static int
1653 pre_vt(DECL_ARGS)
1654 {
1655
1656 if (NODE_SYNPRETTY & n->flags) {
1657 switch (n->type) {
1658 case ROFFT_BLOCK:
1659 pre_syn(n);
1660 return 1;
1661 case ROFFT_BODY:
1662 break;
1663 default:
1664 return 0;
1665 }
1666 }
1667 font_push('I');
1668 return 1;
1669 }
1670
1671 static void
1672 post_vt(DECL_ARGS)
1673 {
1674
1675 if (n->flags & NODE_SYNPRETTY && n->type != ROFFT_BODY)
1676 return;
1677 font_pop();
1678 }
1679
1680 static int
1681 pre_xr(DECL_ARGS)
1682 {
1683
1684 n = n->child;
1685 if (NULL == n)
1686 return 0;
1687 print_node(meta, n);
1688 n = n->next;
1689 if (NULL == n)
1690 return 0;
1691 outflags &= ~MMAN_spc;
1692 print_word("(");
1693 print_node(meta, n);
1694 print_word(")");
1695 return 0;
1696 }
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