1 /* $Id: mdoc_man.c,v 1.139 2025/01/24 22:37:24 schwarze Exp $ */
2 /*
3 * Copyright (c) 2011-2021, 2025 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 <stdlib.h>
24 #include <string.h>
25
26 #include "mandoc_aux.h"
27 #include "mandoc.h"
28 #include "roff.h"
29 #include "mdoc.h"
30 #include "man.h"
31 #include "out.h"
32 #include "main.h"
33
34 #define DECL_ARGS const struct roff_meta *meta, struct roff_node *n
35
36 typedef int (*int_fp)(DECL_ARGS);
37 typedef void (*void_fp)(DECL_ARGS);
38
39 struct mdoc_man_act {
40 int_fp cond; /* DON'T run actions */
41 int_fp pre; /* pre-node action */
42 void_fp post; /* post-node action */
43 const char *prefix; /* pre-node string constant */
44 const char *suffix; /* post-node string constant */
45 };
46
47 static int cond_body(DECL_ARGS);
48 static int cond_head(DECL_ARGS);
49 static void font_push(char);
50 static void font_pop(void);
51 static int man_strlen(const char *);
52 static void mid_it(void);
53 static void post__t(DECL_ARGS);
54 static void post_aq(DECL_ARGS);
55 static void post_bd(DECL_ARGS);
56 static void post_bf(DECL_ARGS);
57 static void post_bk(DECL_ARGS);
58 static void post_bl(DECL_ARGS);
59 static void post_dl(DECL_ARGS);
60 static void post_en(DECL_ARGS);
61 static void post_enc(DECL_ARGS);
62 static void post_eo(DECL_ARGS);
63 static void post_fa(DECL_ARGS);
64 static void post_fd(DECL_ARGS);
65 static void post_fl(DECL_ARGS);
66 static void post_fn(DECL_ARGS);
67 static void post_fo(DECL_ARGS);
68 static void post_font(DECL_ARGS);
69 static void post_in(DECL_ARGS);
70 static void post_it(DECL_ARGS);
71 static void post_lb(DECL_ARGS);
72 static void post_nm(DECL_ARGS);
73 static void post_percent(DECL_ARGS);
74 static void post_pf(DECL_ARGS);
75 static void post_sect(DECL_ARGS);
76 static void post_vt(DECL_ARGS);
77 static int pre__t(DECL_ARGS);
78 static int pre_abort(DECL_ARGS);
79 static int pre_an(DECL_ARGS);
80 static int pre_ap(DECL_ARGS);
81 static int pre_aq(DECL_ARGS);
82 static int pre_bd(DECL_ARGS);
83 static int pre_bf(DECL_ARGS);
84 static int pre_bk(DECL_ARGS);
85 static int pre_bl(DECL_ARGS);
86 static void pre_br(DECL_ARGS);
87 static int pre_dl(DECL_ARGS);
88 static int pre_en(DECL_ARGS);
89 static int pre_enc(DECL_ARGS);
90 static int pre_em(DECL_ARGS);
91 static int pre_skip(DECL_ARGS);
92 static int pre_eo(DECL_ARGS);
93 static int pre_ex(DECL_ARGS);
94 static int pre_fa(DECL_ARGS);
95 static int pre_fd(DECL_ARGS);
96 static int pre_fl(DECL_ARGS);
97 static int pre_fn(DECL_ARGS);
98 static int pre_fo(DECL_ARGS);
99 static void pre_ft(DECL_ARGS);
100 static int pre_Ft(DECL_ARGS);
101 static int pre_in(DECL_ARGS);
102 static int pre_it(DECL_ARGS);
103 static int pre_lk(DECL_ARGS);
104 static int pre_li(DECL_ARGS);
105 static int pre_nm(DECL_ARGS);
106 static int pre_no(DECL_ARGS);
107 static void pre_noarg(DECL_ARGS);
108 static int pre_ns(DECL_ARGS);
109 static void pre_onearg(DECL_ARGS);
110 static int pre_pp(DECL_ARGS);
111 static int pre_rs(DECL_ARGS);
112 static int pre_sm(DECL_ARGS);
113 static void pre_sp(DECL_ARGS);
114 static int pre_sect(DECL_ARGS);
115 static int pre_sy(DECL_ARGS);
116 static void pre_syn(struct roff_node *);
117 static void pre_ta(DECL_ARGS);
118 static int pre_vt(DECL_ARGS);
119 static int pre_xr(DECL_ARGS);
120 static void print_word(const char *);
121 static void print_line(const char *, int);
122 static void print_block(const char *, int);
123 static void print_offs(const char *, int);
124 static void print_width(const struct mdoc_bl *,
125 const struct roff_node *);
126 static void print_count(int *);
127 static void print_node(DECL_ARGS);
128
129 static const void_fp roff_man_acts[ROFF_MAX] = {
130 pre_br, /* br */
131 pre_onearg, /* ce */
132 pre_noarg, /* fi */
133 pre_ft, /* ft */
134 pre_onearg, /* ll */
135 pre_onearg, /* mc */
136 pre_noarg, /* nf */
137 pre_onearg, /* po */
138 pre_onearg, /* rj */
139 pre_sp, /* sp */
140 pre_ta, /* ta */
141 pre_onearg, /* ti */
142 };
143
144 static const struct mdoc_man_act mdoc_man_acts[MDOC_MAX - MDOC_Dd] = {
145 { NULL, NULL, NULL, NULL, NULL }, /* Dd */
146 { NULL, NULL, NULL, NULL, NULL }, /* Dt */
147 { NULL, NULL, NULL, NULL, NULL }, /* Os */
148 { NULL, pre_sect, post_sect, ".SH", NULL }, /* Sh */
149 { NULL, pre_sect, post_sect, ".SS", NULL }, /* Ss */
150 { NULL, pre_pp, NULL, NULL, NULL }, /* Pp */
151 { cond_body, pre_dl, post_dl, NULL, NULL }, /* D1 */
152 { cond_body, pre_dl, post_dl, NULL, NULL }, /* Dl */
153 { cond_body, pre_bd, post_bd, NULL, NULL }, /* Bd */
154 { NULL, NULL, NULL, NULL, NULL }, /* Ed */
155 { cond_body, pre_bl, post_bl, NULL, NULL }, /* Bl */
156 { NULL, NULL, NULL, NULL, NULL }, /* El */
157 { NULL, pre_it, post_it, NULL, NULL }, /* It */
158 { NULL, pre_em, post_font, NULL, NULL }, /* Ad */
159 { NULL, pre_an, NULL, NULL, NULL }, /* An */
160 { NULL, pre_ap, NULL, NULL, NULL }, /* Ap */
161 { NULL, pre_em, post_font, NULL, NULL }, /* Ar */
162 { NULL, pre_sy, post_font, NULL, NULL }, /* Cd */
163 { NULL, pre_sy, post_font, NULL, NULL }, /* Cm */
164 { NULL, pre_li, post_font, NULL, NULL }, /* Dv */
165 { NULL, pre_li, post_font, NULL, NULL }, /* Er */
166 { NULL, pre_li, post_font, NULL, NULL }, /* Ev */
167 { NULL, pre_ex, NULL, NULL, NULL }, /* Ex */
168 { NULL, pre_fa, post_fa, NULL, NULL }, /* Fa */
169 { NULL, pre_fd, post_fd, NULL, NULL }, /* Fd */
170 { NULL, pre_fl, post_fl, NULL, NULL }, /* Fl */
171 { NULL, pre_fn, post_fn, NULL, NULL }, /* Fn */
172 { NULL, pre_Ft, post_font, NULL, NULL }, /* Ft */
173 { NULL, pre_sy, post_font, NULL, NULL }, /* Ic */
174 { NULL, pre_in, post_in, NULL, NULL }, /* In */
175 { NULL, pre_li, post_font, NULL, NULL }, /* Li */
176 { cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */
177 { NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */
178 { cond_body, pre_enc, post_enc, "[", "]" }, /* Op */
179 { NULL, pre_abort, NULL, NULL, NULL }, /* Ot */
180 { NULL, pre_em, post_font, NULL, NULL }, /* Pa */
181 { NULL, pre_ex, NULL, NULL, NULL }, /* Rv */
182 { NULL, NULL, NULL, NULL, NULL }, /* St */
183 { NULL, pre_em, post_font, NULL, NULL }, /* Va */
184 { NULL, pre_vt, post_vt, NULL, NULL }, /* Vt */
185 { NULL, pre_xr, NULL, NULL, NULL }, /* Xr */
186 { NULL, NULL, post_percent, NULL, NULL }, /* %A */
187 { NULL, pre_em, post_percent, NULL, NULL }, /* %B */
188 { NULL, NULL, post_percent, NULL, NULL }, /* %D */
189 { NULL, pre_em, post_percent, NULL, NULL }, /* %I */
190 { NULL, pre_em, post_percent, NULL, NULL }, /* %J */
191 { NULL, NULL, post_percent, NULL, NULL }, /* %N */
192 { NULL, NULL, post_percent, NULL, NULL }, /* %O */
193 { NULL, NULL, post_percent, NULL, NULL }, /* %P */
194 { NULL, NULL, post_percent, NULL, NULL }, /* %R */
195 { NULL, pre__t, post__t, NULL, NULL }, /* %T */
196 { NULL, NULL, post_percent, NULL, NULL }, /* %V */
197 { NULL, NULL, NULL, NULL, NULL }, /* Ac */
198 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Ao */
199 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Aq */
200 { NULL, NULL, NULL, NULL, NULL }, /* At */
201 { NULL, NULL, NULL, NULL, NULL }, /* Bc */
202 { NULL, pre_bf, post_bf, NULL, NULL }, /* Bf */
203 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bo */
204 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bq */
205 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bsx */
206 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bx */
207 { NULL, pre_skip, NULL, NULL, NULL }, /* Db */
208 { NULL, NULL, NULL, NULL, NULL }, /* Dc */
209 { cond_body, pre_enc, post_enc, "\\(lq", "\\(rq" }, /* Do */
210 { cond_body, pre_enc, post_enc, "\\(lq", "\\(rq" }, /* Dq */
211 { NULL, NULL, NULL, NULL, NULL }, /* Ec */
212 { NULL, NULL, NULL, NULL, NULL }, /* Ef */
213 { NULL, pre_em, post_font, NULL, NULL }, /* Em */
214 { cond_body, pre_eo, post_eo, NULL, NULL }, /* Eo */
215 { NULL, pre_bk, post_bk, NULL, NULL }, /* Fx */
216 { NULL, pre_sy, post_font, NULL, NULL }, /* Ms */
217 { NULL, pre_no, NULL, NULL, NULL }, /* No */
218 { NULL, pre_ns, NULL, NULL, NULL }, /* Ns */
219 { NULL, pre_bk, post_bk, NULL, NULL }, /* Nx */
220 { NULL, pre_bk, post_bk, NULL, NULL }, /* Ox */
221 { NULL, NULL, NULL, NULL, NULL }, /* Pc */
222 { NULL, NULL, post_pf, NULL, NULL }, /* Pf */
223 { cond_body, pre_enc, post_enc, "(", ")" }, /* Po */
224 { cond_body, pre_enc, post_enc, "(", ")" }, /* Pq */
225 { NULL, NULL, NULL, NULL, NULL }, /* Qc */
226 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Ql */
227 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qo */
228 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qq */
229 { NULL, NULL, NULL, NULL, NULL }, /* Re */
230 { cond_body, pre_rs, NULL, NULL, NULL }, /* Rs */
231 { NULL, NULL, NULL, NULL, NULL }, /* Sc */
232 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* So */
233 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Sq */
234 { NULL, pre_sm, NULL, NULL, NULL }, /* Sm */
235 { NULL, pre_em, post_font, NULL, NULL }, /* Sx */
236 { NULL, pre_sy, post_font, NULL, NULL }, /* Sy */
237 { NULL, pre_li, post_font, NULL, NULL }, /* Tn */
238 { NULL, NULL, NULL, NULL, NULL }, /* Ux */
239 { NULL, NULL, NULL, NULL, NULL }, /* Xc */
240 { NULL, NULL, NULL, NULL, NULL }, /* Xo */
241 { NULL, pre_fo, post_fo, NULL, NULL }, /* Fo */
242 { NULL, NULL, NULL, NULL, NULL }, /* Fc */
243 { cond_body, pre_enc, post_enc, "[", "]" }, /* Oo */
244 { NULL, NULL, NULL, NULL, NULL }, /* Oc */
245 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bk */
246 { NULL, NULL, NULL, NULL, NULL }, /* Ek */
247 { NULL, NULL, NULL, NULL, NULL }, /* Bt */
248 { NULL, NULL, NULL, NULL, NULL }, /* Hf */
249 { NULL, pre_em, post_font, NULL, NULL }, /* Fr */
250 { NULL, NULL, NULL, NULL, NULL }, /* Ud */
251 { NULL, NULL, post_lb, NULL, NULL }, /* Lb */
252 { NULL, pre_abort, NULL, NULL, NULL }, /* Lp */
253 { NULL, pre_lk, NULL, NULL, NULL }, /* Lk */
254 { NULL, pre_em, post_font, NULL, NULL }, /* Mt */
255 { cond_body, pre_enc, post_enc, "{", "}" }, /* Brq */
256 { cond_body, pre_enc, post_enc, "{", "}" }, /* Bro */
257 { NULL, NULL, NULL, NULL, NULL }, /* Brc */
258 { NULL, NULL, post_percent, NULL, NULL }, /* %C */
259 { NULL, pre_skip, NULL, NULL, NULL }, /* Es */
260 { cond_body, pre_en, post_en, NULL, NULL }, /* En */
261 { NULL, pre_bk, post_bk, NULL, NULL }, /* Dx */
262 { NULL, NULL, post_percent, NULL, NULL }, /* %Q */
263 { NULL, NULL, post_percent, NULL, NULL }, /* %U */
264 { NULL, NULL, NULL, NULL, NULL }, /* Ta */
265 { NULL, pre_skip, NULL, NULL, NULL }, /* Tg */
266 };
267 static const struct mdoc_man_act *mdoc_man_act(enum roff_tok);
268
269 static int outflags;
270 #define MMAN_spc (1 << 0) /* blank character before next word */
271 #define MMAN_spc_force (1 << 1) /* even before trailing punctuation */
272 #define MMAN_nl (1 << 2) /* break man(7) code line */
273 #define MMAN_br (1 << 3) /* break output line */
274 #define MMAN_sp (1 << 4) /* insert a blank output line */
275 #define MMAN_PP (1 << 5) /* reset indentation etc. */
276 #define MMAN_Sm (1 << 6) /* horizontal spacing mode */
277 #define MMAN_Bk (1 << 7) /* word keep mode */
278 #define MMAN_Bk_susp (1 << 8) /* suspend this (after a macro) */
279 #define MMAN_An_split (1 << 9) /* author mode is "split" */
280 #define MMAN_An_nosplit (1 << 10) /* author mode is "nosplit" */
281 #define MMAN_PD (1 << 11) /* inter-paragraph spacing disabled */
282 #define MMAN_nbrword (1 << 12) /* do not break the next word */
283
284 #define BL_STACK_MAX 32
285
286 static int Bl_stack[BL_STACK_MAX]; /* offsets [chars] */
287 static int Bl_stack_post[BL_STACK_MAX]; /* add final .RE */
288 static int Bl_stack_len; /* number of nested Bl blocks */
289 static int TPremain; /* characters before tag is full */
290
291 static struct {
292 char *head;
293 char *tail;
294 size_t size;
295 } fontqueue;
296
297
298 static const struct mdoc_man_act *
mdoc_man_act(enum roff_tok tok)299 mdoc_man_act(enum roff_tok tok)
300 {
301 assert(tok >= MDOC_Dd && tok <= MDOC_MAX);
302 return mdoc_man_acts + (tok - MDOC_Dd);
303 }
304
305 static int
man_strlen(const char * cp)306 man_strlen(const char *cp)
307 {
308 size_t rsz;
309 int skip, sz;
310
311 sz = 0;
312 skip = 0;
313 for (;;) {
314 rsz = strcspn(cp, "\\");
315 if (rsz) {
316 cp += rsz;
317 if (skip) {
318 skip = 0;
319 rsz--;
320 }
321 sz += rsz;
322 }
323 if ('\0' == *cp)
324 break;
325 cp++;
326 switch (mandoc_escape(&cp, NULL, NULL)) {
327 case ESCAPE_ERROR:
328 return sz;
329 case ESCAPE_UNICODE:
330 case ESCAPE_NUMBERED:
331 case ESCAPE_SPECIAL:
332 case ESCAPE_UNDEF:
333 case ESCAPE_OVERSTRIKE:
334 if (skip)
335 skip = 0;
336 else
337 sz++;
338 break;
339 case ESCAPE_SKIPCHAR:
340 skip = 1;
341 break;
342 default:
343 break;
344 }
345 }
346 return sz;
347 }
348
349 static void
font_push(char newfont)350 font_push(char newfont)
351 {
352
353 if (fontqueue.head + fontqueue.size <= ++fontqueue.tail) {
354 fontqueue.size += 8;
355 fontqueue.head = mandoc_realloc(fontqueue.head,
356 fontqueue.size);
357 }
358 *fontqueue.tail = newfont;
359 print_word("");
360 printf("\\f");
361 putchar(newfont);
362 outflags &= ~MMAN_spc;
363 }
364
365 static void
font_pop(void)366 font_pop(void)
367 {
368
369 if (fontqueue.tail > fontqueue.head)
370 fontqueue.tail--;
371 outflags &= ~MMAN_spc;
372 print_word("");
373 printf("\\f");
374 putchar(*fontqueue.tail);
375 }
376
377 static void
print_word(const char * s)378 print_word(const char *s)
379 {
380
381 if ((MMAN_PP | MMAN_sp | MMAN_br | MMAN_nl) & outflags) {
382 /*
383 * If we need a newline, print it now and start afresh.
384 */
385 if (MMAN_PP & outflags) {
386 if (MMAN_sp & outflags) {
387 if (MMAN_PD & outflags) {
388 printf("\n.PD");
389 outflags &= ~MMAN_PD;
390 }
391 } else if ( ! (MMAN_PD & outflags)) {
392 printf("\n.PD 0");
393 outflags |= MMAN_PD;
394 }
395 printf("\n.PP\n");
396 } else if (MMAN_sp & outflags)
397 printf("\n.sp\n");
398 else if (MMAN_br & outflags)
399 printf("\n.br\n");
400 else if (MMAN_nl & outflags)
401 putchar('\n');
402 outflags &= ~(MMAN_PP|MMAN_sp|MMAN_br|MMAN_nl|MMAN_spc);
403 if (1 == TPremain)
404 printf(".br\n");
405 TPremain = 0;
406 } else if (MMAN_spc & outflags) {
407 /*
408 * If we need a space, only print it if
409 * (1) it is forced by `No' or
410 * (2) what follows is not terminating punctuation or
411 * (3) what follows is longer than one character.
412 */
413 if (MMAN_spc_force & outflags || '\0' == s[0] ||
414 NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1]) {
415 if (MMAN_Bk & outflags &&
416 ! (MMAN_Bk_susp & outflags))
417 putchar('\\');
418 putchar(' ');
419 if (TPremain)
420 TPremain--;
421 }
422 }
423
424 /*
425 * Reassign needing space if we're not following opening
426 * punctuation.
427 */
428 if (MMAN_Sm & outflags && ('\0' == s[0] ||
429 (('(' != s[0] && '[' != s[0]) || '\0' != s[1])))
430 outflags |= MMAN_spc;
431 else
432 outflags &= ~MMAN_spc;
433 outflags &= ~(MMAN_spc_force | MMAN_Bk_susp);
434
435 for ( ; *s; s++) {
436 switch (*s) {
437 case ASCII_NBRSP:
438 printf("\\ ");
439 break;
440 case ASCII_HYPH:
441 putchar('-');
442 break;
443 case ASCII_BREAK:
444 printf("\\:");
445 break;
446 case ' ':
447 if (MMAN_nbrword & outflags) {
448 printf("\\ ");
449 break;
450 }
451 /* FALLTHROUGH */
452 default:
453 putchar((unsigned char)*s);
454 break;
455 }
456 if (TPremain)
457 TPremain--;
458 }
459 outflags &= ~MMAN_nbrword;
460 }
461
462 static void
print_line(const char * s,int newflags)463 print_line(const char *s, int newflags)
464 {
465
466 outflags |= MMAN_nl;
467 print_word(s);
468 outflags |= newflags;
469 }
470
471 static void
print_block(const char * s,int newflags)472 print_block(const char *s, int newflags)
473 {
474
475 outflags &= ~MMAN_PP;
476 if (MMAN_sp & outflags) {
477 outflags &= ~(MMAN_sp | MMAN_br);
478 if (MMAN_PD & outflags) {
479 print_line(".PD", 0);
480 outflags &= ~MMAN_PD;
481 }
482 } else if (! (MMAN_PD & outflags))
483 print_line(".PD 0", MMAN_PD);
484 outflags |= MMAN_nl;
485 print_word(s);
486 outflags |= MMAN_Bk_susp | newflags;
487 }
488
489 static void
print_offs(const char * v,int keywords)490 print_offs(const char *v, int keywords)
491 {
492 char buf[24];
493 struct roffsu su;
494 const char *end;
495 int sz;
496
497 print_line(".RS", MMAN_Bk_susp);
498
499 /* Convert v into a number (of characters). */
500 if (NULL == v || '\0' == *v || (keywords && !strcmp(v, "left")))
501 sz = 0;
502 else if (keywords && !strcmp(v, "indent"))
503 sz = 6;
504 else if (keywords && !strcmp(v, "indent-two"))
505 sz = 12;
506 else {
507 end = a2roffsu(v, &su, SCALE_EN);
508 if (end == NULL || *end != '\0')
509 sz = man_strlen(v);
510 else if (SCALE_EN == su.unit)
511 sz = su.scale;
512 else {
513 /*
514 * XXX
515 * If we are inside an enclosing list,
516 * there is no easy way to add the two
517 * indentations because they are provided
518 * in terms of different units.
519 */
520 print_word(v);
521 outflags |= MMAN_nl;
522 return;
523 }
524 }
525
526 /*
527 * We are inside an enclosing list.
528 * Add the two indentations.
529 */
530 if (Bl_stack_len)
531 sz += Bl_stack[Bl_stack_len - 1];
532
533 (void)snprintf(buf, sizeof(buf), "%dn", sz);
534 print_word(buf);
535 outflags |= MMAN_nl;
536 }
537
538 /*
539 * Set up the indentation for a list item; used from pre_it().
540 */
541 static void
print_width(const struct mdoc_bl * bl,const struct roff_node * child)542 print_width(const struct mdoc_bl *bl, const struct roff_node *child)
543 {
544 char buf[24];
545 struct roffsu su;
546 const char *end;
547 int numeric, remain, sz, chsz;
548
549 numeric = 1;
550 remain = 0;
551
552 /* Convert the width into a number (of characters). */
553 if (bl->width == NULL)
554 sz = (bl->type == LIST_hang) ? 6 : 0;
555 else {
556 end = a2roffsu(bl->width, &su, SCALE_MAX);
557 if (end == NULL || *end != '\0')
558 sz = man_strlen(bl->width);
559 else if (SCALE_EN == su.unit)
560 sz = su.scale;
561 else {
562 sz = 0;
563 numeric = 0;
564 }
565 }
566
567 /* XXX Rough estimation, might have multiple parts. */
568 if (bl->type == LIST_enum)
569 chsz = (bl->count > 8) + 1;
570 else if (child != NULL && child->type == ROFFT_TEXT)
571 chsz = man_strlen(child->string);
572 else
573 chsz = 0;
574
575 /* Maybe we are inside an enclosing list? */
576 mid_it();
577
578 /*
579 * Save our own indentation,
580 * such that child lists can use it.
581 */
582 Bl_stack[Bl_stack_len++] = sz + 2;
583
584 /* Set up the current list. */
585 if (chsz > sz && bl->type != LIST_tag)
586 print_block(".HP", MMAN_spc);
587 else {
588 print_block(".TP", MMAN_spc);
589 remain = sz + 2;
590 }
591 if (numeric) {
592 (void)snprintf(buf, sizeof(buf), "%dn", sz + 2);
593 print_word(buf);
594 } else
595 print_word(bl->width);
596 TPremain = remain;
597 }
598
599 static void
print_count(int * count)600 print_count(int *count)
601 {
602 char buf[24];
603
604 (void)snprintf(buf, sizeof(buf), "%d.\\&", ++*count);
605 print_word(buf);
606 }
607
608 void
man_mdoc(void * arg,const struct roff_meta * mdoc)609 man_mdoc(void *arg, const struct roff_meta *mdoc)
610 {
611 struct roff_node *n;
612
613 printf(".\\\" Automatically generated from an mdoc input file."
614 " Do not edit.\n");
615 for (n = mdoc->first->child; n != NULL; n = n->next) {
616 if (n->type != ROFFT_COMMENT)
617 break;
618 printf(".\\\"%s\n", n->string);
619 }
620
621 printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"\n",
622 mdoc->title, (mdoc->msec == NULL ? "" : mdoc->msec),
623 mdoc->date, mdoc->os, mdoc->vol);
624
625 /* Disable hyphenation and if nroff, disable justification. */
626 printf(".nh\n.if n .ad l");
627
628 outflags = MMAN_nl | MMAN_Sm;
629 if (0 == fontqueue.size) {
630 fontqueue.size = 8;
631 fontqueue.head = fontqueue.tail = mandoc_malloc(8);
632 *fontqueue.tail = 'R';
633 }
634 for (; n != NULL; n = n->next)
635 print_node(mdoc, n);
636 putchar('\n');
637 }
638
639 static void
print_node(DECL_ARGS)640 print_node(DECL_ARGS)
641 {
642 const struct mdoc_man_act *act;
643 struct roff_node *sub;
644 int cond, do_sub;
645
646 if (n->flags & NODE_NOPRT)
647 return;
648
649 /*
650 * Break the line if we were parsed subsequent the current node.
651 * This makes the page structure be more consistent.
652 */
653 if (outflags & MMAN_spc &&
654 n->flags & NODE_LINE &&
655 !roff_node_transparent(n))
656 outflags |= MMAN_nl;
657
658 act = NULL;
659 cond = 0;
660 do_sub = 1;
661 n->flags &= ~NODE_ENDED;
662
663 switch (n->type) {
664 case ROFFT_EQN:
665 case ROFFT_TBL:
666 mandoc_msg(n->type == ROFFT_EQN ? MANDOCERR_EQN_TMAN :
667 MANDOCERR_TBL_TMAN, n->line, n->pos, NULL);
668 outflags |= MMAN_PP | MMAN_sp | MMAN_nl;
669 print_word("The");
670 print_line(".B \\-T man", MMAN_nl);
671 print_word("output mode does not support");
672 print_word(n->type == ROFFT_EQN ? "eqn(7)" : "tbl(7)");
673 print_word("input.");
674 outflags |= MMAN_PP | MMAN_sp | MMAN_nl;
675 return;
676 case ROFFT_TEXT:
677 /*
678 * Make sure that we don't happen to start with a
679 * control character at the start of a line.
680 */
681 if (MMAN_nl & outflags &&
682 ('.' == *n->string || '\'' == *n->string)) {
683 print_word("");
684 printf("\\&");
685 outflags &= ~MMAN_spc;
686 }
687 if (n->flags & NODE_DELIMC)
688 outflags &= ~(MMAN_spc | MMAN_spc_force);
689 else if (outflags & MMAN_Sm)
690 outflags |= MMAN_spc_force;
691 print_word(n->string);
692 if (n->flags & NODE_DELIMO)
693 outflags &= ~(MMAN_spc | MMAN_spc_force);
694 else if (outflags & MMAN_Sm)
695 outflags |= MMAN_spc;
696 break;
697 default:
698 if (n->tok < ROFF_MAX) {
699 (*roff_man_acts[n->tok])(meta, n);
700 return;
701 }
702 act = mdoc_man_act(n->tok);
703 cond = act->cond == NULL || (*act->cond)(meta, n);
704 if (cond && act->pre != NULL &&
705 (n->end == ENDBODY_NOT || n->child != NULL))
706 do_sub = (*act->pre)(meta, n);
707 break;
708 }
709
710 /*
711 * Conditionally run all child nodes.
712 * Note that this iterates over children instead of using
713 * recursion. This prevents unnecessary depth in the stack.
714 */
715 if (do_sub)
716 for (sub = n->child; sub; sub = sub->next)
717 print_node(meta, sub);
718
719 /*
720 * Lastly, conditionally run the post-node handler.
721 */
722 if (NODE_ENDED & n->flags)
723 return;
724
725 if (cond && act->post)
726 (*act->post)(meta, n);
727
728 if (ENDBODY_NOT != n->end)
729 n->body->flags |= NODE_ENDED;
730 }
731
732 static int
cond_head(DECL_ARGS)733 cond_head(DECL_ARGS)
734 {
735
736 return n->type == ROFFT_HEAD;
737 }
738
739 static int
cond_body(DECL_ARGS)740 cond_body(DECL_ARGS)
741 {
742
743 return n->type == ROFFT_BODY;
744 }
745
746 static int
pre_abort(DECL_ARGS)747 pre_abort(DECL_ARGS)
748 {
749 abort();
750 }
751
752 static int
pre_enc(DECL_ARGS)753 pre_enc(DECL_ARGS)
754 {
755 const char *prefix;
756
757 prefix = mdoc_man_act(n->tok)->prefix;
758 if (NULL == prefix)
759 return 1;
760 print_word(prefix);
761 outflags &= ~MMAN_spc;
762 return 1;
763 }
764
765 static void
post_enc(DECL_ARGS)766 post_enc(DECL_ARGS)
767 {
768 const char *suffix;
769
770 suffix = mdoc_man_act(n->tok)->suffix;
771 if (NULL == suffix)
772 return;
773 outflags &= ~(MMAN_spc | MMAN_nl);
774 print_word(suffix);
775 }
776
777 static int
pre_ex(DECL_ARGS)778 pre_ex(DECL_ARGS)
779 {
780 outflags |= MMAN_br | MMAN_nl;
781 return 1;
782 }
783
784 static void
post_font(DECL_ARGS)785 post_font(DECL_ARGS)
786 {
787
788 font_pop();
789 }
790
791 static void
post_percent(DECL_ARGS)792 post_percent(DECL_ARGS)
793 {
794 struct roff_node *np, *nn, *nnn;
795
796 if (mdoc_man_act(n->tok)->pre == pre_em)
797 font_pop();
798
799 if (n->parent == NULL || n->parent->tok != MDOC_Rs)
800 return;
801
802 if ((nn = roff_node_next(n)) != NULL) {
803 np = roff_node_prev(n);
804 nnn = nn == NULL ? NULL : roff_node_next(nn);
805 if (nn->tok != n->tok ||
806 (np != NULL && np->tok == n->tok) ||
807 (nnn != NULL && nnn->tok == n->tok))
808 print_word(",");
809 if (nn->tok == n->tok &&
810 (nnn == NULL || nnn->tok != n->tok))
811 print_word("and");
812 } else {
813 print_word(".");
814 outflags |= MMAN_nl;
815 }
816 }
817
818 static int
pre__t(DECL_ARGS)819 pre__t(DECL_ARGS)
820 {
821
822 if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T) {
823 print_word("\\(lq");
824 outflags &= ~MMAN_spc;
825 } else
826 font_push('I');
827 return 1;
828 }
829
830 static void
post__t(DECL_ARGS)831 post__t(DECL_ARGS)
832 {
833
834 if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T) {
835 outflags &= ~MMAN_spc;
836 print_word("\\(rq");
837 } else
838 font_pop();
839 post_percent(meta, n);
840 }
841
842 /*
843 * Print before a section header.
844 */
845 static int
pre_sect(DECL_ARGS)846 pre_sect(DECL_ARGS)
847 {
848
849 if (n->type == ROFFT_HEAD) {
850 outflags |= MMAN_sp;
851 print_block(mdoc_man_act(n->tok)->prefix, 0);
852 print_word("");
853 putchar('\"');
854 outflags &= ~MMAN_spc;
855 }
856 return 1;
857 }
858
859 /*
860 * Print subsequent a section header.
861 */
862 static void
post_sect(DECL_ARGS)863 post_sect(DECL_ARGS)
864 {
865
866 if (n->type != ROFFT_HEAD)
867 return;
868 outflags &= ~MMAN_spc;
869 print_word("");
870 putchar('\"');
871 outflags |= MMAN_nl;
872 if (MDOC_Sh == n->tok && SEC_AUTHORS == n->sec)
873 outflags &= ~(MMAN_An_split | MMAN_An_nosplit);
874 }
875
876 /* See mdoc_term.c, synopsis_pre() for comments. */
877 static void
pre_syn(struct roff_node * n)878 pre_syn(struct roff_node *n)
879 {
880 struct roff_node *np;
881
882 if ((n->flags & NODE_SYNPRETTY) == 0 ||
883 (np = roff_node_prev(n)) == NULL)
884 return;
885
886 if (np->tok == n->tok &&
887 MDOC_Ft != n->tok &&
888 MDOC_Fo != n->tok &&
889 MDOC_Fn != n->tok) {
890 outflags |= MMAN_br;
891 return;
892 }
893
894 switch (np->tok) {
895 case MDOC_Fd:
896 case MDOC_Fn:
897 case MDOC_Fo:
898 case MDOC_In:
899 case MDOC_Vt:
900 outflags |= MMAN_sp;
901 break;
902 case MDOC_Ft:
903 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
904 outflags |= MMAN_sp;
905 break;
906 }
907 /* FALLTHROUGH */
908 default:
909 outflags |= MMAN_br;
910 break;
911 }
912 }
913
914 static int
pre_an(DECL_ARGS)915 pre_an(DECL_ARGS)
916 {
917
918 switch (n->norm->An.auth) {
919 case AUTH_split:
920 outflags &= ~MMAN_An_nosplit;
921 outflags |= MMAN_An_split;
922 return 0;
923 case AUTH_nosplit:
924 outflags &= ~MMAN_An_split;
925 outflags |= MMAN_An_nosplit;
926 return 0;
927 default:
928 if (MMAN_An_split & outflags)
929 outflags |= MMAN_br;
930 else if (SEC_AUTHORS == n->sec &&
931 ! (MMAN_An_nosplit & outflags))
932 outflags |= MMAN_An_split;
933 return 1;
934 }
935 }
936
937 static int
pre_ap(DECL_ARGS)938 pre_ap(DECL_ARGS)
939 {
940
941 outflags &= ~MMAN_spc;
942 print_word("'");
943 outflags &= ~MMAN_spc;
944 return 0;
945 }
946
947 static int
pre_aq(DECL_ARGS)948 pre_aq(DECL_ARGS)
949 {
950
951 print_word(n->child != NULL && n->child->next == NULL &&
952 n->child->tok == MDOC_Mt ? "<" : "\\(la");
953 outflags &= ~MMAN_spc;
954 return 1;
955 }
956
957 static void
post_aq(DECL_ARGS)958 post_aq(DECL_ARGS)
959 {
960
961 outflags &= ~(MMAN_spc | MMAN_nl);
962 print_word(n->child != NULL && n->child->next == NULL &&
963 n->child->tok == MDOC_Mt ? ">" : "\\(ra");
964 }
965
966 static int
pre_bd(DECL_ARGS)967 pre_bd(DECL_ARGS)
968 {
969 outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br);
970 if (n->norm->Bd.type == DISP_unfilled ||
971 n->norm->Bd.type == DISP_literal)
972 print_line(".nf", 0);
973 if (n->norm->Bd.comp == 0 && roff_node_prev(n->parent) != NULL)
974 outflags |= MMAN_sp;
975 print_offs(n->norm->Bd.offs, 1);
976 return 1;
977 }
978
979 static void
post_bd(DECL_ARGS)980 post_bd(DECL_ARGS)
981 {
982 enum roff_tok bef, now;
983
984 /* Close out this display. */
985 print_line(".RE", MMAN_nl);
986 bef = n->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi;
987 if (n->last == NULL)
988 now = n->norm->Bd.type == DISP_unfilled ||
989 n->norm->Bd.type == DISP_literal ? ROFF_nf : ROFF_fi;
990 else if (n->last->tok == ROFF_nf)
991 now = ROFF_nf;
992 else if (n->last->tok == ROFF_fi)
993 now = ROFF_fi;
994 else
995 now = n->last->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi;
996 if (bef != now) {
997 outflags |= MMAN_nl;
998 print_word(".");
999 outflags &= ~MMAN_spc;
1000 print_word(roff_name[bef]);
1001 outflags |= MMAN_nl;
1002 }
1003
1004 /* Maybe we are inside an enclosing list? */
1005 if (roff_node_next(n->parent) != NULL)
1006 mid_it();
1007 }
1008
1009 static int
pre_bf(DECL_ARGS)1010 pre_bf(DECL_ARGS)
1011 {
1012
1013 switch (n->type) {
1014 case ROFFT_BLOCK:
1015 return 1;
1016 case ROFFT_BODY:
1017 break;
1018 default:
1019 return 0;
1020 }
1021 switch (n->norm->Bf.font) {
1022 case FONT_Em:
1023 font_push('I');
1024 break;
1025 case FONT_Sy:
1026 font_push('B');
1027 break;
1028 default:
1029 font_push('R');
1030 break;
1031 }
1032 return 1;
1033 }
1034
1035 static void
post_bf(DECL_ARGS)1036 post_bf(DECL_ARGS)
1037 {
1038
1039 if (n->type == ROFFT_BODY)
1040 font_pop();
1041 }
1042
1043 static int
pre_bk(DECL_ARGS)1044 pre_bk(DECL_ARGS)
1045 {
1046 switch (n->type) {
1047 case ROFFT_BLOCK:
1048 return 1;
1049 case ROFFT_BODY:
1050 case ROFFT_ELEM:
1051 outflags |= MMAN_Bk;
1052 return 1;
1053 default:
1054 return 0;
1055 }
1056 }
1057
1058 static void
post_bk(DECL_ARGS)1059 post_bk(DECL_ARGS)
1060 {
1061 switch (n->type) {
1062 case ROFFT_ELEM:
1063 while ((n = n->parent) != NULL)
1064 if (n->tok == MDOC_Bk)
1065 return;
1066 /* FALLTHROUGH */
1067 case ROFFT_BODY:
1068 outflags &= ~MMAN_Bk;
1069 break;
1070 default:
1071 break;
1072 }
1073 }
1074
1075 static int
pre_bl(DECL_ARGS)1076 pre_bl(DECL_ARGS)
1077 {
1078 size_t icol;
1079
1080 /*
1081 * print_offs() will increase the -offset to account for
1082 * a possible enclosing .It, but any enclosed .It blocks
1083 * just nest and do not add up their indentation.
1084 */
1085 if (n->norm->Bl.offs) {
1086 print_offs(n->norm->Bl.offs, 0);
1087 Bl_stack[Bl_stack_len++] = 0;
1088 }
1089
1090 switch (n->norm->Bl.type) {
1091 case LIST_enum:
1092 n->norm->Bl.count = 0;
1093 return 1;
1094 case LIST_column:
1095 break;
1096 default:
1097 return 1;
1098 }
1099
1100 if (n->child != NULL) {
1101 print_line(".TS", MMAN_nl);
1102 for (icol = 0; icol < n->norm->Bl.ncols; icol++)
1103 print_word("l");
1104 print_word(".");
1105 }
1106 outflags |= MMAN_nl;
1107 return 1;
1108 }
1109
1110 static void
post_bl(DECL_ARGS)1111 post_bl(DECL_ARGS)
1112 {
1113
1114 switch (n->norm->Bl.type) {
1115 case LIST_column:
1116 if (n->child != NULL)
1117 print_line(".TE", 0);
1118 break;
1119 case LIST_enum:
1120 n->norm->Bl.count = 0;
1121 break;
1122 default:
1123 break;
1124 }
1125
1126 if (n->norm->Bl.offs) {
1127 print_line(".RE", MMAN_nl);
1128 assert(Bl_stack_len);
1129 Bl_stack_len--;
1130 assert(Bl_stack[Bl_stack_len] == 0);
1131 } else {
1132 outflags |= MMAN_PP | MMAN_nl;
1133 outflags &= ~(MMAN_sp | MMAN_br);
1134 }
1135
1136 /* Maybe we are inside an enclosing list? */
1137 if (roff_node_next(n->parent) != NULL)
1138 mid_it();
1139 }
1140
1141 static void
pre_br(DECL_ARGS)1142 pre_br(DECL_ARGS)
1143 {
1144 outflags |= MMAN_br;
1145 }
1146
1147 static int
pre_dl(DECL_ARGS)1148 pre_dl(DECL_ARGS)
1149 {
1150 print_offs("6n", 0);
1151 return 1;
1152 }
1153
1154 static void
post_dl(DECL_ARGS)1155 post_dl(DECL_ARGS)
1156 {
1157 print_line(".RE", MMAN_nl);
1158
1159 /* Maybe we are inside an enclosing list? */
1160 if (roff_node_next(n->parent) != NULL)
1161 mid_it();
1162 }
1163
1164 static int
pre_em(DECL_ARGS)1165 pre_em(DECL_ARGS)
1166 {
1167
1168 font_push('I');
1169 return 1;
1170 }
1171
1172 static int
pre_en(DECL_ARGS)1173 pre_en(DECL_ARGS)
1174 {
1175
1176 if (NULL == n->norm->Es ||
1177 NULL == n->norm->Es->child)
1178 return 1;
1179
1180 print_word(n->norm->Es->child->string);
1181 outflags &= ~MMAN_spc;
1182 return 1;
1183 }
1184
1185 static void
post_en(DECL_ARGS)1186 post_en(DECL_ARGS)
1187 {
1188
1189 if (NULL == n->norm->Es ||
1190 NULL == n->norm->Es->child ||
1191 NULL == n->norm->Es->child->next)
1192 return;
1193
1194 outflags &= ~MMAN_spc;
1195 print_word(n->norm->Es->child->next->string);
1196 return;
1197 }
1198
1199 static int
pre_eo(DECL_ARGS)1200 pre_eo(DECL_ARGS)
1201 {
1202
1203 if (n->end == ENDBODY_NOT &&
1204 n->parent->head->child == NULL &&
1205 n->child != NULL &&
1206 n->child->end != ENDBODY_NOT)
1207 print_word("\\&");
1208 else if (n->end != ENDBODY_NOT ? n->child != NULL :
1209 n->parent->head->child != NULL && (n->child != NULL ||
1210 (n->parent->tail != NULL && n->parent->tail->child != NULL)))
1211 outflags &= ~(MMAN_spc | MMAN_nl);
1212 return 1;
1213 }
1214
1215 static void
post_eo(DECL_ARGS)1216 post_eo(DECL_ARGS)
1217 {
1218 int body, tail;
1219
1220 if (n->end != ENDBODY_NOT) {
1221 outflags |= MMAN_spc;
1222 return;
1223 }
1224
1225 body = n->child != NULL || n->parent->head->child != NULL;
1226 tail = n->parent->tail != NULL && n->parent->tail->child != NULL;
1227
1228 if (body && tail)
1229 outflags &= ~MMAN_spc;
1230 else if ( ! (body || tail))
1231 print_word("\\&");
1232 else if ( ! tail)
1233 outflags |= MMAN_spc;
1234 }
1235
1236 static int
pre_fa(DECL_ARGS)1237 pre_fa(DECL_ARGS)
1238 {
1239 int am_Fa;
1240
1241 am_Fa = MDOC_Fa == n->tok;
1242
1243 if (am_Fa)
1244 n = n->child;
1245
1246 while (NULL != n) {
1247 font_push('I');
1248 if (am_Fa || NODE_SYNPRETTY & n->flags)
1249 outflags |= MMAN_nbrword;
1250 print_node(meta, n);
1251 font_pop();
1252 if (NULL != (n = n->next))
1253 print_word(",");
1254 }
1255 return 0;
1256 }
1257
1258 static void
post_fa(DECL_ARGS)1259 post_fa(DECL_ARGS)
1260 {
1261 struct roff_node *nn;
1262
1263 if ((nn = roff_node_next(n)) != NULL && nn->tok == MDOC_Fa)
1264 print_word(",");
1265 }
1266
1267 static int
pre_fd(DECL_ARGS)1268 pre_fd(DECL_ARGS)
1269 {
1270 pre_syn(n);
1271 font_push('B');
1272 return 1;
1273 }
1274
1275 static void
post_fd(DECL_ARGS)1276 post_fd(DECL_ARGS)
1277 {
1278 font_pop();
1279 outflags |= MMAN_br;
1280 }
1281
1282 static int
pre_fl(DECL_ARGS)1283 pre_fl(DECL_ARGS)
1284 {
1285 font_push('B');
1286 print_word("\\-");
1287 if (n->child != NULL)
1288 outflags &= ~MMAN_spc;
1289 return 1;
1290 }
1291
1292 static void
post_fl(DECL_ARGS)1293 post_fl(DECL_ARGS)
1294 {
1295 struct roff_node *nn;
1296
1297 font_pop();
1298 if (n->child == NULL &&
1299 ((nn = roff_node_next(n)) != NULL &&
1300 nn->type != ROFFT_TEXT &&
1301 (nn->flags & NODE_LINE) == 0))
1302 outflags &= ~MMAN_spc;
1303 }
1304
1305 static int
pre_fn(DECL_ARGS)1306 pre_fn(DECL_ARGS)
1307 {
1308
1309 pre_syn(n);
1310
1311 n = n->child;
1312 if (NULL == n)
1313 return 0;
1314
1315 if (NODE_SYNPRETTY & n->flags)
1316 print_block(".HP 4n", MMAN_nl);
1317
1318 font_push('B');
1319 print_node(meta, n);
1320 font_pop();
1321 outflags &= ~MMAN_spc;
1322 print_word("(");
1323 outflags &= ~MMAN_spc;
1324
1325 n = n->next;
1326 if (NULL != n)
1327 pre_fa(meta, n);
1328 return 0;
1329 }
1330
1331 static void
post_fn(DECL_ARGS)1332 post_fn(DECL_ARGS)
1333 {
1334
1335 print_word(")");
1336 if (NODE_SYNPRETTY & n->flags) {
1337 print_word(";");
1338 outflags |= MMAN_PP;
1339 }
1340 }
1341
1342 static int
pre_fo(DECL_ARGS)1343 pre_fo(DECL_ARGS)
1344 {
1345
1346 switch (n->type) {
1347 case ROFFT_BLOCK:
1348 pre_syn(n);
1349 break;
1350 case ROFFT_HEAD:
1351 if (n->child == NULL)
1352 return 0;
1353 if (NODE_SYNPRETTY & n->flags)
1354 print_block(".HP 4n", MMAN_nl);
1355 font_push('B');
1356 break;
1357 case ROFFT_BODY:
1358 outflags &= ~(MMAN_spc | MMAN_nl);
1359 print_word("(");
1360 outflags &= ~MMAN_spc;
1361 break;
1362 default:
1363 break;
1364 }
1365 return 1;
1366 }
1367
1368 static void
post_fo(DECL_ARGS)1369 post_fo(DECL_ARGS)
1370 {
1371
1372 switch (n->type) {
1373 case ROFFT_HEAD:
1374 if (n->child != NULL)
1375 font_pop();
1376 break;
1377 case ROFFT_BODY:
1378 post_fn(meta, n);
1379 break;
1380 default:
1381 break;
1382 }
1383 }
1384
1385 static int
pre_Ft(DECL_ARGS)1386 pre_Ft(DECL_ARGS)
1387 {
1388
1389 pre_syn(n);
1390 font_push('I');
1391 return 1;
1392 }
1393
1394 static void
pre_ft(DECL_ARGS)1395 pre_ft(DECL_ARGS)
1396 {
1397 print_line(".ft", 0);
1398 print_word(n->child->string);
1399 outflags |= MMAN_nl;
1400 }
1401
1402 static int
pre_in(DECL_ARGS)1403 pre_in(DECL_ARGS)
1404 {
1405
1406 if (NODE_SYNPRETTY & n->flags) {
1407 pre_syn(n);
1408 font_push('B');
1409 print_word("#include <");
1410 outflags &= ~MMAN_spc;
1411 } else {
1412 print_word("<");
1413 outflags &= ~MMAN_spc;
1414 font_push('I');
1415 }
1416 return 1;
1417 }
1418
1419 static void
post_in(DECL_ARGS)1420 post_in(DECL_ARGS)
1421 {
1422
1423 if (NODE_SYNPRETTY & n->flags) {
1424 outflags &= ~MMAN_spc;
1425 print_word(">");
1426 font_pop();
1427 outflags |= MMAN_br;
1428 } else {
1429 font_pop();
1430 outflags &= ~MMAN_spc;
1431 print_word(">");
1432 }
1433 }
1434
1435 static int
pre_it(DECL_ARGS)1436 pre_it(DECL_ARGS)
1437 {
1438 const struct roff_node *bln;
1439
1440 switch (n->type) {
1441 case ROFFT_HEAD:
1442 outflags |= MMAN_PP | MMAN_nl;
1443 bln = n->parent->parent;
1444 if (bln->norm->Bl.comp == 0 ||
1445 (n->parent->prev == NULL &&
1446 roff_node_prev(bln->parent) == NULL))
1447 outflags |= MMAN_sp;
1448 outflags &= ~MMAN_br;
1449 switch (bln->norm->Bl.type) {
1450 case LIST_item:
1451 return 0;
1452 case LIST_inset:
1453 case LIST_diag:
1454 case LIST_ohang:
1455 if (bln->norm->Bl.type == LIST_diag)
1456 print_line(".B \"", 0);
1457 else
1458 print_line(".BR \\& \"", 0);
1459 outflags &= ~MMAN_spc;
1460 return 1;
1461 case LIST_bullet:
1462 case LIST_dash:
1463 case LIST_hyphen:
1464 print_width(&bln->norm->Bl, NULL);
1465 TPremain = 0;
1466 outflags |= MMAN_nl;
1467 font_push('B');
1468 if (LIST_bullet == bln->norm->Bl.type)
1469 print_word("\\(bu");
1470 else
1471 print_word("-");
1472 font_pop();
1473 outflags |= MMAN_nl;
1474 return 0;
1475 case LIST_enum:
1476 print_width(&bln->norm->Bl, NULL);
1477 TPremain = 0;
1478 outflags |= MMAN_nl;
1479 print_count(&bln->norm->Bl.count);
1480 outflags |= MMAN_nl;
1481 return 0;
1482 case LIST_hang:
1483 print_width(&bln->norm->Bl, n->child);
1484 TPremain = 0;
1485 outflags |= MMAN_nl;
1486 return 1;
1487 case LIST_tag:
1488 print_width(&bln->norm->Bl, n->child);
1489 putchar('\n');
1490 outflags &= ~MMAN_spc;
1491 return 1;
1492 default:
1493 return 1;
1494 }
1495 default:
1496 break;
1497 }
1498 return 1;
1499 }
1500
1501 /*
1502 * This function is called after closing out an indented block.
1503 * If we are inside an enclosing list, restore its indentation.
1504 */
1505 static void
mid_it(void)1506 mid_it(void)
1507 {
1508 char buf[24];
1509
1510 /* Nothing to do outside a list. */
1511 if (0 == Bl_stack_len || 0 == Bl_stack[Bl_stack_len - 1])
1512 return;
1513
1514 /* The indentation has already been set up. */
1515 if (Bl_stack_post[Bl_stack_len - 1])
1516 return;
1517
1518 /* Restore the indentation of the enclosing list. */
1519 print_line(".RS", MMAN_Bk_susp);
1520 (void)snprintf(buf, sizeof(buf), "%dn",
1521 Bl_stack[Bl_stack_len - 1]);
1522 print_word(buf);
1523
1524 /* Remember to close out this .RS block later. */
1525 Bl_stack_post[Bl_stack_len - 1] = 1;
1526 }
1527
1528 static void
post_it(DECL_ARGS)1529 post_it(DECL_ARGS)
1530 {
1531 const struct roff_node *bln;
1532
1533 bln = n->parent->parent;
1534
1535 switch (n->type) {
1536 case ROFFT_HEAD:
1537 switch (bln->norm->Bl.type) {
1538 case LIST_diag:
1539 outflags &= ~MMAN_spc;
1540 print_word("\\ ");
1541 break;
1542 case LIST_ohang:
1543 outflags |= MMAN_br;
1544 break;
1545 default:
1546 break;
1547 }
1548 break;
1549 case ROFFT_BODY:
1550 switch (bln->norm->Bl.type) {
1551 case LIST_bullet:
1552 case LIST_dash:
1553 case LIST_hyphen:
1554 case LIST_enum:
1555 case LIST_hang:
1556 case LIST_tag:
1557 assert(Bl_stack_len);
1558 Bl_stack[--Bl_stack_len] = 0;
1559
1560 /*
1561 * Our indentation had to be restored
1562 * after a child display or child list.
1563 * Close out that indentation block now.
1564 */
1565 if (Bl_stack_post[Bl_stack_len]) {
1566 print_line(".RE", MMAN_nl);
1567 Bl_stack_post[Bl_stack_len] = 0;
1568 }
1569 break;
1570 case LIST_column:
1571 if (NULL != n->next) {
1572 putchar('\t');
1573 outflags &= ~MMAN_spc;
1574 }
1575 break;
1576 default:
1577 break;
1578 }
1579 break;
1580 default:
1581 break;
1582 }
1583 }
1584
1585 static void
post_lb(DECL_ARGS)1586 post_lb(DECL_ARGS)
1587 {
1588
1589 if (SEC_LIBRARY == n->sec)
1590 outflags |= MMAN_br;
1591 }
1592
1593 static int
pre_lk(DECL_ARGS)1594 pre_lk(DECL_ARGS)
1595 {
1596 const struct roff_node *link, *descr, *punct;
1597
1598 if ((link = n->child) == NULL)
1599 return 0;
1600
1601 /* Find beginning of trailing punctuation. */
1602 punct = n->last;
1603 while (punct != link && punct->flags & NODE_DELIMC)
1604 punct = punct->prev;
1605 punct = punct->next;
1606
1607 /* Link text. */
1608 if ((descr = link->next) != NULL && descr != punct) {
1609 font_push('I');
1610 while (descr != punct) {
1611 print_word(descr->string);
1612 descr = descr->next;
1613 }
1614 font_pop();
1615 print_word(":");
1616 }
1617
1618 /* Link target. */
1619 font_push('B');
1620 print_word(link->string);
1621 font_pop();
1622
1623 /* Trailing punctuation. */
1624 while (punct != NULL) {
1625 print_word(punct->string);
1626 punct = punct->next;
1627 }
1628 return 0;
1629 }
1630
1631 static void
pre_onearg(DECL_ARGS)1632 pre_onearg(DECL_ARGS)
1633 {
1634 outflags |= MMAN_nl;
1635 print_word(".");
1636 outflags &= ~MMAN_spc;
1637 print_word(roff_name[n->tok]);
1638 if (n->child != NULL)
1639 print_word(n->child->string);
1640 outflags |= MMAN_nl;
1641 if (n->tok == ROFF_ce)
1642 for (n = n->child->next; n != NULL; n = n->next)
1643 print_node(meta, n);
1644 }
1645
1646 static int
pre_li(DECL_ARGS)1647 pre_li(DECL_ARGS)
1648 {
1649 font_push('R');
1650 return 1;
1651 }
1652
1653 static int
pre_nm(DECL_ARGS)1654 pre_nm(DECL_ARGS)
1655 {
1656 char *name;
1657
1658 switch (n->type) {
1659 case ROFFT_BLOCK:
1660 outflags |= MMAN_Bk;
1661 pre_syn(n);
1662 return 1;
1663 case ROFFT_HEAD:
1664 case ROFFT_ELEM:
1665 break;
1666 default:
1667 return 1;
1668 }
1669 name = n->child == NULL ? NULL : n->child->string;
1670 if (name == NULL)
1671 return 0;
1672 if (n->type == ROFFT_HEAD) {
1673 if (roff_node_prev(n->parent) == NULL)
1674 outflags |= MMAN_sp;
1675 print_block(".HP", 0);
1676 printf(" %dn", man_strlen(name) + 1);
1677 outflags |= MMAN_nl;
1678 }
1679 font_push('B');
1680 return 1;
1681 }
1682
1683 static void
post_nm(DECL_ARGS)1684 post_nm(DECL_ARGS)
1685 {
1686 switch (n->type) {
1687 case ROFFT_BLOCK:
1688 outflags &= ~MMAN_Bk;
1689 break;
1690 case ROFFT_HEAD:
1691 case ROFFT_ELEM:
1692 if (n->child != NULL && n->child->string != NULL)
1693 font_pop();
1694 break;
1695 default:
1696 break;
1697 }
1698 }
1699
1700 static int
pre_no(DECL_ARGS)1701 pre_no(DECL_ARGS)
1702 {
1703 outflags |= MMAN_spc_force;
1704 return 1;
1705 }
1706
1707 static void
pre_noarg(DECL_ARGS)1708 pre_noarg(DECL_ARGS)
1709 {
1710 outflags |= MMAN_nl;
1711 print_word(".");
1712 outflags &= ~MMAN_spc;
1713 print_word(roff_name[n->tok]);
1714 outflags |= MMAN_nl;
1715 }
1716
1717 static int
pre_ns(DECL_ARGS)1718 pre_ns(DECL_ARGS)
1719 {
1720 outflags &= ~MMAN_spc;
1721 return 0;
1722 }
1723
1724 static void
post_pf(DECL_ARGS)1725 post_pf(DECL_ARGS)
1726 {
1727
1728 if ( ! (n->next == NULL || n->next->flags & NODE_LINE))
1729 outflags &= ~MMAN_spc;
1730 }
1731
1732 static int
pre_pp(DECL_ARGS)1733 pre_pp(DECL_ARGS)
1734 {
1735
1736 if (MDOC_It != n->parent->tok)
1737 outflags |= MMAN_PP;
1738 outflags |= MMAN_sp | MMAN_nl;
1739 outflags &= ~MMAN_br;
1740 return 0;
1741 }
1742
1743 static int
pre_rs(DECL_ARGS)1744 pre_rs(DECL_ARGS)
1745 {
1746
1747 if (SEC_SEE_ALSO == n->sec) {
1748 outflags |= MMAN_PP | MMAN_sp | MMAN_nl;
1749 outflags &= ~MMAN_br;
1750 }
1751 return 1;
1752 }
1753
1754 static int
pre_skip(DECL_ARGS)1755 pre_skip(DECL_ARGS)
1756 {
1757
1758 return 0;
1759 }
1760
1761 static int
pre_sm(DECL_ARGS)1762 pre_sm(DECL_ARGS)
1763 {
1764
1765 if (NULL == n->child)
1766 outflags ^= MMAN_Sm;
1767 else if (0 == strcmp("on", n->child->string))
1768 outflags |= MMAN_Sm;
1769 else
1770 outflags &= ~MMAN_Sm;
1771
1772 if (MMAN_Sm & outflags)
1773 outflags |= MMAN_spc;
1774
1775 return 0;
1776 }
1777
1778 static void
pre_sp(DECL_ARGS)1779 pre_sp(DECL_ARGS)
1780 {
1781 if (outflags & MMAN_PP) {
1782 outflags &= ~MMAN_PP;
1783 print_line(".PP", 0);
1784 } else {
1785 print_line(".sp", 0);
1786 if (n->child != NULL)
1787 print_word(n->child->string);
1788 }
1789 outflags |= MMAN_nl;
1790 }
1791
1792 static int
pre_sy(DECL_ARGS)1793 pre_sy(DECL_ARGS)
1794 {
1795
1796 font_push('B');
1797 return 1;
1798 }
1799
1800 static void
pre_ta(DECL_ARGS)1801 pre_ta(DECL_ARGS)
1802 {
1803 print_line(".ta", 0);
1804 for (n = n->child; n != NULL; n = n->next)
1805 print_word(n->string);
1806 outflags |= MMAN_nl;
1807 }
1808
1809 static int
pre_vt(DECL_ARGS)1810 pre_vt(DECL_ARGS)
1811 {
1812
1813 if (NODE_SYNPRETTY & n->flags) {
1814 switch (n->type) {
1815 case ROFFT_BLOCK:
1816 pre_syn(n);
1817 return 1;
1818 case ROFFT_BODY:
1819 break;
1820 default:
1821 return 0;
1822 }
1823 }
1824 font_push('I');
1825 return 1;
1826 }
1827
1828 static void
post_vt(DECL_ARGS)1829 post_vt(DECL_ARGS)
1830 {
1831
1832 if (n->flags & NODE_SYNPRETTY && n->type != ROFFT_BODY)
1833 return;
1834 font_pop();
1835 }
1836
1837 static int
pre_xr(DECL_ARGS)1838 pre_xr(DECL_ARGS)
1839 {
1840
1841 n = n->child;
1842 if (NULL == n)
1843 return 0;
1844 print_node(meta, n);
1845 n = n->next;
1846 if (NULL == n)
1847 return 0;
1848 outflags &= ~MMAN_spc;
1849 print_word("(");
1850 print_node(meta, n);
1851 print_word(")");
1852 return 0;
1853 }
1854