Import mdocml-1.13.1
[dragonfly.git] / contrib / mdocml / mdoc_term.c
CommitLineData
070c62a6 1/* $Id: mdoc_term.c,v 1.275 2014/08/06 15:09:05 schwarze Exp $ */
80387638 2/*
60e1e752 3 * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
070c62a6 4 * Copyright (c) 2010, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
7888c61d 5 * Copyright (c) 2013 Franco Fichtner <franco@lastsummer.de>
80387638
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6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19#ifdef HAVE_CONFIG_H
20#include "config.h"
21#endif
22
23#include <sys/types.h>
24
25#include <assert.h>
26#include <ctype.h>
27#include <stdint.h>
28#include <stdio.h>
29#include <stdlib.h>
30#include <string.h>
31
32#include "mandoc.h"
070c62a6 33#include "mandoc_aux.h"
80387638
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34#include "out.h"
35#include "term.h"
36#include "mdoc.h"
80387638
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37#include "main.h"
38
80387638
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39struct termpair {
40 struct termpair *ppair;
41 int count;
42};
43
44#define DECL_ARGS struct termp *p, \
45 struct termpair *pair, \
070c62a6 46 const struct mdoc_meta *meta, \
f88b6c16 47 struct mdoc_node *n
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48
49struct termact {
50 int (*pre)(DECL_ARGS);
51 void (*post)(DECL_ARGS);
52};
53
54static size_t a2width(const struct termp *, const char *);
55static size_t a2height(const struct termp *, const char *);
56static size_t a2offs(const struct termp *, const char *);
57
58static void print_bvspace(struct termp *,
59 const struct mdoc_node *,
60 const struct mdoc_node *);
070c62a6 61static void print_mdoc_node(DECL_ARGS);
80387638
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62static void print_mdoc_nodelist(DECL_ARGS);
63static void print_mdoc_head(struct termp *, const void *);
64static void print_mdoc_foot(struct termp *, const void *);
070c62a6 65static void synopsis_pre(struct termp *,
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66 const struct mdoc_node *);
67
68static void termp____post(DECL_ARGS);
69static void termp__t_post(DECL_ARGS);
70static void termp_an_post(DECL_ARGS);
71static void termp_bd_post(DECL_ARGS);
72static void termp_bk_post(DECL_ARGS);
73static void termp_bl_post(DECL_ARGS);
f88b6c16 74static void termp_fd_post(DECL_ARGS);
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75static void termp_fo_post(DECL_ARGS);
76static void termp_in_post(DECL_ARGS);
77static void termp_it_post(DECL_ARGS);
78static void termp_lb_post(DECL_ARGS);
79static void termp_nm_post(DECL_ARGS);
80static void termp_pf_post(DECL_ARGS);
81static void termp_quote_post(DECL_ARGS);
82static void termp_sh_post(DECL_ARGS);
83static void termp_ss_post(DECL_ARGS);
84
85static int termp__a_pre(DECL_ARGS);
86static int termp__t_pre(DECL_ARGS);
87static int termp_an_pre(DECL_ARGS);
88static int termp_ap_pre(DECL_ARGS);
89static int termp_bd_pre(DECL_ARGS);
90static int termp_bf_pre(DECL_ARGS);
91static int termp_bk_pre(DECL_ARGS);
92static int termp_bl_pre(DECL_ARGS);
93static int termp_bold_pre(DECL_ARGS);
94static int termp_bt_pre(DECL_ARGS);
60e1e752 95static int termp_bx_pre(DECL_ARGS);
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96static int termp_cd_pre(DECL_ARGS);
97static int termp_d1_pre(DECL_ARGS);
070c62a6 98static int termp_es_pre(DECL_ARGS);
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99static int termp_ex_pre(DECL_ARGS);
100static int termp_fa_pre(DECL_ARGS);
101static int termp_fd_pre(DECL_ARGS);
102static int termp_fl_pre(DECL_ARGS);
103static int termp_fn_pre(DECL_ARGS);
104static int termp_fo_pre(DECL_ARGS);
105static int termp_ft_pre(DECL_ARGS);
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106static int termp_in_pre(DECL_ARGS);
107static int termp_it_pre(DECL_ARGS);
108static int termp_li_pre(DECL_ARGS);
070c62a6 109static int termp_ll_pre(DECL_ARGS);
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110static int termp_lk_pre(DECL_ARGS);
111static int termp_nd_pre(DECL_ARGS);
112static int termp_nm_pre(DECL_ARGS);
113static int termp_ns_pre(DECL_ARGS);
114static int termp_quote_pre(DECL_ARGS);
115static int termp_rs_pre(DECL_ARGS);
116static int termp_rv_pre(DECL_ARGS);
117static int termp_sh_pre(DECL_ARGS);
118static int termp_sm_pre(DECL_ARGS);
119static int termp_sp_pre(DECL_ARGS);
120static int termp_ss_pre(DECL_ARGS);
121static int termp_under_pre(DECL_ARGS);
122static int termp_ud_pre(DECL_ARGS);
123static int termp_vt_pre(DECL_ARGS);
124static int termp_xr_pre(DECL_ARGS);
125static int termp_xx_pre(DECL_ARGS);
126
127static const struct termact termacts[MDOC_MAX] = {
128 { termp_ap_pre, NULL }, /* Ap */
129 { NULL, NULL }, /* Dd */
130 { NULL, NULL }, /* Dt */
131 { NULL, NULL }, /* Os */
132 { termp_sh_pre, termp_sh_post }, /* Sh */
070c62a6
FF
133 { termp_ss_pre, termp_ss_post }, /* Ss */
134 { termp_sp_pre, NULL }, /* Pp */
f88b6c16
FF
135 { termp_d1_pre, termp_bl_post }, /* D1 */
136 { termp_d1_pre, termp_bl_post }, /* Dl */
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137 { termp_bd_pre, termp_bd_post }, /* Bd */
138 { NULL, NULL }, /* Ed */
139 { termp_bl_pre, termp_bl_post }, /* Bl */
140 { NULL, NULL }, /* El */
141 { termp_it_pre, termp_it_post }, /* It */
070c62a6 142 { termp_under_pre, NULL }, /* Ad */
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143 { termp_an_pre, termp_an_post }, /* An */
144 { termp_under_pre, NULL }, /* Ar */
145 { termp_cd_pre, NULL }, /* Cd */
146 { termp_bold_pre, NULL }, /* Cm */
070c62a6
FF
147 { NULL, NULL }, /* Dv */
148 { NULL, NULL }, /* Er */
149 { NULL, NULL }, /* Ev */
80387638 150 { termp_ex_pre, NULL }, /* Ex */
070c62a6
FF
151 { termp_fa_pre, NULL }, /* Fa */
152 { termp_fd_pre, termp_fd_post }, /* Fd */
80387638 153 { termp_fl_pre, NULL }, /* Fl */
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FF
154 { termp_fn_pre, NULL }, /* Fn */
155 { termp_ft_pre, NULL }, /* Ft */
156 { termp_bold_pre, NULL }, /* Ic */
157 { termp_in_pre, termp_in_post }, /* In */
80387638 158 { termp_li_pre, NULL }, /* Li */
070c62a6
FF
159 { termp_nd_pre, NULL }, /* Nd */
160 { termp_nm_pre, termp_nm_post }, /* Nm */
80387638 161 { termp_quote_pre, termp_quote_post }, /* Op */
070c62a6 162 { termp_ft_pre, NULL }, /* Ot */
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163 { termp_under_pre, NULL }, /* Pa */
164 { termp_rv_pre, NULL }, /* Rv */
070c62a6 165 { NULL, NULL }, /* St */
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166 { termp_under_pre, NULL }, /* Va */
167 { termp_vt_pre, NULL }, /* Vt */
168 { termp_xr_pre, NULL }, /* Xr */
169 { termp__a_pre, termp____post }, /* %A */
170 { termp_under_pre, termp____post }, /* %B */
171 { NULL, termp____post }, /* %D */
172 { termp_under_pre, termp____post }, /* %I */
173 { termp_under_pre, termp____post }, /* %J */
174 { NULL, termp____post }, /* %N */
175 { NULL, termp____post }, /* %O */
176 { NULL, termp____post }, /* %P */
177 { NULL, termp____post }, /* %R */
178 { termp__t_pre, termp__t_post }, /* %T */
179 { NULL, termp____post }, /* %V */
180 { NULL, NULL }, /* Ac */
181 { termp_quote_pre, termp_quote_post }, /* Ao */
182 { termp_quote_pre, termp_quote_post }, /* Aq */
183 { NULL, NULL }, /* At */
184 { NULL, NULL }, /* Bc */
070c62a6 185 { termp_bf_pre, NULL }, /* Bf */
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186 { termp_quote_pre, termp_quote_post }, /* Bo */
187 { termp_quote_pre, termp_quote_post }, /* Bq */
188 { termp_xx_pre, NULL }, /* Bsx */
60e1e752 189 { termp_bx_pre, NULL }, /* Bx */
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190 { NULL, NULL }, /* Db */
191 { NULL, NULL }, /* Dc */
192 { termp_quote_pre, termp_quote_post }, /* Do */
193 { termp_quote_pre, termp_quote_post }, /* Dq */
194 { NULL, NULL }, /* Ec */ /* FIXME: no space */
195 { NULL, NULL }, /* Ef */
070c62a6 196 { termp_under_pre, NULL }, /* Em */
36342e81 197 { termp_quote_pre, termp_quote_post }, /* Eo */
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198 { termp_xx_pre, NULL }, /* Fx */
199 { termp_bold_pre, NULL }, /* Ms */
7888c61d 200 { NULL, NULL }, /* No */
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201 { termp_ns_pre, NULL }, /* Ns */
202 { termp_xx_pre, NULL }, /* Nx */
203 { termp_xx_pre, NULL }, /* Ox */
204 { NULL, NULL }, /* Pc */
7888c61d 205 { NULL, termp_pf_post }, /* Pf */
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206 { termp_quote_pre, termp_quote_post }, /* Po */
207 { termp_quote_pre, termp_quote_post }, /* Pq */
208 { NULL, NULL }, /* Qc */
209 { termp_quote_pre, termp_quote_post }, /* Ql */
210 { termp_quote_pre, termp_quote_post }, /* Qo */
211 { termp_quote_pre, termp_quote_post }, /* Qq */
212 { NULL, NULL }, /* Re */
213 { termp_rs_pre, NULL }, /* Rs */
214 { NULL, NULL }, /* Sc */
215 { termp_quote_pre, termp_quote_post }, /* So */
216 { termp_quote_pre, termp_quote_post }, /* Sq */
217 { termp_sm_pre, NULL }, /* Sm */
218 { termp_under_pre, NULL }, /* Sx */
219 { termp_bold_pre, NULL }, /* Sy */
220 { NULL, NULL }, /* Tn */
221 { termp_xx_pre, NULL }, /* Ux */
222 { NULL, NULL }, /* Xc */
223 { NULL, NULL }, /* Xo */
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FF
224 { termp_fo_pre, termp_fo_post }, /* Fo */
225 { NULL, NULL }, /* Fc */
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226 { termp_quote_pre, termp_quote_post }, /* Oo */
227 { NULL, NULL }, /* Oc */
228 { termp_bk_pre, termp_bk_post }, /* Bk */
229 { NULL, NULL }, /* Ek */
230 { termp_bt_pre, NULL }, /* Bt */
231 { NULL, NULL }, /* Hf */
070c62a6 232 { termp_under_pre, NULL }, /* Fr */
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233 { termp_ud_pre, NULL }, /* Ud */
234 { NULL, termp_lb_post }, /* Lb */
070c62a6
FF
235 { termp_sp_pre, NULL }, /* Lp */
236 { termp_lk_pre, NULL }, /* Lk */
237 { termp_under_pre, NULL }, /* Mt */
238 { termp_quote_pre, termp_quote_post }, /* Brq */
239 { termp_quote_pre, termp_quote_post }, /* Bro */
240 { NULL, NULL }, /* Brc */
241 { NULL, termp____post }, /* %C */
242 { termp_es_pre, NULL }, /* Es */
243 { termp_quote_pre, termp_quote_post }, /* En */
244 { termp_xx_pre, NULL }, /* Dx */
245 { NULL, termp____post }, /* %Q */
80387638 246 { termp_sp_pre, NULL }, /* br */
070c62a6
FF
247 { termp_sp_pre, NULL }, /* sp */
248 { NULL, termp____post }, /* %U */
249 { NULL, NULL }, /* Ta */
250 { termp_ll_pre, NULL }, /* ll */
80387638
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251};
252
253
254void
255terminal_mdoc(void *arg, const struct mdoc *mdoc)
256{
257 const struct mdoc_node *n;
f88b6c16 258 const struct mdoc_meta *meta;
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259 struct termp *p;
260
261 p = (struct termp *)arg;
262
36342e81
SW
263 if (0 == p->defindent)
264 p->defindent = 5;
265
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266 p->overstep = 0;
267 p->maxrmargin = p->defrmargin;
268 p->tabwidth = term_len(p, 5);
269
270 if (NULL == p->symtab)
a4c7eb57 271 p->symtab = mchars_alloc();
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272
273 n = mdoc_node(mdoc);
f88b6c16 274 meta = mdoc_meta(mdoc);
80387638 275
f88b6c16 276 term_begin(p, print_mdoc_head, print_mdoc_foot, meta);
80387638 277
070c62a6
FF
278 if (n->child) {
279 if (MDOC_Sh != n->child->tok)
280 term_vspace(p);
f88b6c16 281 print_mdoc_nodelist(p, NULL, meta, n->child);
070c62a6 282 }
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283
284 term_end(p);
285}
286
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287static void
288print_mdoc_nodelist(DECL_ARGS)
289{
290
f88b6c16 291 print_mdoc_node(p, pair, meta, n);
80387638 292 if (n->next)
f88b6c16 293 print_mdoc_nodelist(p, pair, meta, n->next);
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294}
295
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296static void
297print_mdoc_node(DECL_ARGS)
298{
299 int chld;
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300 struct termpair npair;
301 size_t offset, rmargin;
302
303 chld = 1;
304 offset = p->offset;
305 rmargin = p->rmargin;
f88b6c16 306 n->prev_font = term_fontq(p);
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307
308 memset(&npair, 0, sizeof(struct termpair));
309 npair.ppair = pair;
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310
311 /*
312 * Keeps only work until the end of a line. If a keep was
313 * invoked in a prior line, revert it to PREKEEP.
80387638
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314 */
315
7888c61d
FF
316 if (TERMP_KEEP & p->flags) {
317 if (n->prev ? (n->prev->lastline != n->line) :
f88b6c16 318 (n->parent && n->parent->line != n->line)) {
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319 p->flags &= ~TERMP_KEEP;
320 p->flags |= TERMP_PREKEEP;
80387638
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321 }
322 }
323
60e1e752
SW
324 /*
325 * After the keep flags have been set up, we may now
326 * produce output. Note that some pre-handlers do so.
327 */
328
329 switch (n->type) {
070c62a6 330 case MDOC_TEXT:
60e1e752
SW
331 if (' ' == *n->string && MDOC_LINE & n->flags)
332 term_newln(p);
333 if (MDOC_DELIMC & n->flags)
334 p->flags |= TERMP_NOSPACE;
335 term_word(p, n->string);
336 if (MDOC_DELIMO & n->flags)
337 p->flags |= TERMP_NOSPACE;
338 break;
070c62a6 339 case MDOC_EQN:
36342e81 340 term_eqn(p, n->eqn);
60e1e752 341 break;
070c62a6 342 case MDOC_TBL:
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343 term_tbl(p, n->span);
344 break;
345 default:
346 if (termacts[n->tok].pre && ENDBODY_NOT == n->end)
347 chld = (*termacts[n->tok].pre)
f88b6c16 348 (p, &npair, meta, n);
60e1e752
SW
349 break;
350 }
351
80387638 352 if (chld && n->child)
f88b6c16 353 print_mdoc_nodelist(p, &npair, meta, n->child);
80387638 354
f88b6c16
FF
355 term_fontpopq(p,
356 (ENDBODY_NOT == n->end ? n : n->pending)->prev_font);
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SW
357
358 switch (n->type) {
070c62a6 359 case MDOC_TEXT:
80387638 360 break;
070c62a6 361 case MDOC_TBL:
80387638 362 break;
070c62a6 363 case MDOC_EQN:
60e1e752 364 break;
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SW
365 default:
366 if ( ! termacts[n->tok].post || MDOC_ENDED & n->flags)
367 break;
f88b6c16 368 (void)(*termacts[n->tok].post)(p, &npair, meta, n);
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369
370 /*
371 * Explicit end tokens not only call the post
372 * handler, but also tell the respective block
373 * that it must not call the post handler again.
374 */
375 if (ENDBODY_NOT != n->end)
376 n->pending->flags |= MDOC_ENDED;
377
378 /*
379 * End of line terminating an implicit block
380 * while an explicit block is still open.
381 * Continue the explicit block without spacing.
382 */
383 if (ENDBODY_NOSPACE == n->end)
384 p->flags |= TERMP_NOSPACE;
385 break;
386 }
387
388 if (MDOC_EOS & n->flags)
389 p->flags |= TERMP_SENTENCE;
390
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FF
391 if (MDOC_ll != n->tok) {
392 p->offset = offset;
393 p->rmargin = rmargin;
394 }
80387638
SW
395}
396
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397static void
398print_mdoc_foot(struct termp *p, const void *arg)
399{
f88b6c16 400 const struct mdoc_meta *meta;
80387638 401
f88b6c16 402 meta = (const struct mdoc_meta *)arg;
80387638
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403
404 term_fontrepl(p, TERMFONT_NONE);
405
070c62a6 406 /*
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407 * Output the footer in new-groff style, that is, three columns
408 * with the middle being the manual date and flanking columns
409 * being the operating system:
410 *
411 * SYSTEM DATE SYSTEM
412 */
413
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414 term_vspace(p);
415
416 p->offset = 0;
070c62a6
FF
417 p->rmargin = (p->maxrmargin -
418 term_strlen(p, meta->date) + term_len(p, 1)) / 2;
7888c61d 419 p->trailspace = 1;
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420 p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
421
f88b6c16 422 term_word(p, meta->os);
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423 term_flushln(p);
424
425 p->offset = p->rmargin;
f88b6c16 426 p->rmargin = p->maxrmargin - term_strlen(p, meta->os);
36342e81 427 p->flags |= TERMP_NOSPACE;
80387638 428
f88b6c16 429 term_word(p, meta->date);
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430 term_flushln(p);
431
432 p->offset = p->rmargin;
433 p->rmargin = p->maxrmargin;
7888c61d 434 p->trailspace = 0;
80387638 435 p->flags &= ~TERMP_NOBREAK;
36342e81 436 p->flags |= TERMP_NOSPACE;
80387638 437
f88b6c16 438 term_word(p, meta->os);
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439 term_flushln(p);
440
441 p->offset = 0;
442 p->rmargin = p->maxrmargin;
443 p->flags = 0;
444}
445
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446static void
447print_mdoc_head(struct termp *p, const void *arg)
448{
070c62a6
FF
449 const struct mdoc_meta *meta;
450 char *volume, *title;
451 size_t vollen, titlen;
80387638 452
f88b6c16 453 meta = (const struct mdoc_meta *)arg;
80387638 454
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455 /*
456 * The header is strange. It has three components, which are
457 * really two with the first duplicated. It goes like this:
458 *
459 * IDENTIFIER TITLE IDENTIFIER
460 *
461 * The IDENTIFIER is NAME(SECTION), which is the command-name
462 * (if given, or "unknown" if not) followed by the manual page
463 * section. These are given in `Dt'. The TITLE is a free-form
464 * string depending on the manual volume. If not specified, it
465 * switches on the manual section.
466 */
467
36342e81
SW
468 p->offset = 0;
469 p->rmargin = p->maxrmargin;
470
f88b6c16 471 assert(meta->vol);
070c62a6
FF
472 if (NULL == meta->arch)
473 volume = mandoc_strdup(meta->vol);
474 else
475 mandoc_asprintf(&volume, "%s (%s)",
476 meta->vol, meta->arch);
477 vollen = term_strlen(p, volume);
80387638 478
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FF
479 if (NULL == meta->msec)
480 title = mandoc_strdup(meta->title);
481 else
482 mandoc_asprintf(&title, "%s(%s)",
483 meta->title, meta->msec);
36342e81 484 titlen = term_strlen(p, title);
80387638 485
80387638 486 p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
7888c61d 487 p->trailspace = 1;
36342e81 488 p->offset = 0;
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FF
489 p->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
490 (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
491 p->maxrmargin - vollen;
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492
493 term_word(p, title);
494 term_flushln(p);
495
36342e81 496 p->flags |= TERMP_NOSPACE;
80387638 497 p->offset = p->rmargin;
070c62a6 498 p->rmargin = p->offset + vollen + titlen < p->maxrmargin ?
36342e81 499 p->maxrmargin - titlen : p->maxrmargin;
80387638 500
070c62a6 501 term_word(p, volume);
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SW
502 term_flushln(p);
503
80387638 504 p->flags &= ~TERMP_NOBREAK;
7888c61d 505 p->trailspace = 0;
36342e81
SW
506 if (p->rmargin + titlen <= p->maxrmargin) {
507 p->flags |= TERMP_NOSPACE;
508 p->offset = p->rmargin;
509 p->rmargin = p->maxrmargin;
510 term_word(p, title);
511 term_flushln(p);
512 }
80387638 513
36342e81 514 p->flags &= ~TERMP_NOSPACE;
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SW
515 p->offset = 0;
516 p->rmargin = p->maxrmargin;
070c62a6
FF
517 free(title);
518 free(volume);
80387638
SW
519}
520
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521static size_t
522a2height(const struct termp *p, const char *v)
523{
524 struct roffsu su;
525
36342e81 526
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527 assert(v);
528 if ( ! a2roffsu(v, &su, SCALE_VS))
36342e81 529 SCALE_VS_INIT(&su, atoi(v));
80387638
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530
531 return(term_vspan(p, &su));
532}
533
80387638
SW
534static size_t
535a2width(const struct termp *p, const char *v)
536{
537 struct roffsu su;
538
539 assert(v);
540 if ( ! a2roffsu(v, &su, SCALE_MAX))
541 SCALE_HS_INIT(&su, term_strlen(p, v));
542
543 return(term_hspan(p, &su));
544}
545
80387638
SW
546static size_t
547a2offs(const struct termp *p, const char *v)
548{
549 struct roffsu su;
550
551 if ('\0' == *v)
552 return(0);
553 else if (0 == strcmp(v, "left"))
554 return(0);
555 else if (0 == strcmp(v, "indent"))
36342e81 556 return(term_len(p, p->defindent + 1));
80387638 557 else if (0 == strcmp(v, "indent-two"))
36342e81 558 return(term_len(p, (p->defindent + 1) * 2));
80387638
SW
559 else if ( ! a2roffsu(v, &su, SCALE_MAX))
560 SCALE_HS_INIT(&su, term_strlen(p, v));
561
562 return(term_hspan(p, &su));
563}
564
80387638
SW
565/*
566 * Determine how much space to print out before block elements of `It'
567 * (and thus `Bl') and `Bd'. And then go ahead and print that space,
568 * too.
569 */
570static void
070c62a6
FF
571print_bvspace(struct termp *p,
572 const struct mdoc_node *bl,
573 const struct mdoc_node *n)
80387638
SW
574{
575 const struct mdoc_node *nn;
576
36342e81
SW
577 assert(n);
578
80387638
SW
579 term_newln(p);
580
581 if (MDOC_Bd == bl->tok && bl->norm->Bd.comp)
582 return;
583 if (MDOC_Bl == bl->tok && bl->norm->Bl.comp)
584 return;
585
586 /* Do not vspace directly after Ss/Sh. */
587
588 for (nn = n; nn; nn = nn->parent) {
589 if (MDOC_BLOCK != nn->type)
590 continue;
591 if (MDOC_Ss == nn->tok)
592 return;
593 if (MDOC_Sh == nn->tok)
594 return;
595 if (NULL == nn->prev)
596 continue;
597 break;
598 }
599
600 /* A `-column' does not assert vspace within the list. */
601
602 if (MDOC_Bl == bl->tok && LIST_column == bl->norm->Bl.type)
603 if (n->prev && MDOC_It == n->prev->tok)
604 return;
605
606 /* A `-diag' without body does not vspace. */
607
608 if (MDOC_Bl == bl->tok && LIST_diag == bl->norm->Bl.type)
609 if (n->prev && MDOC_It == n->prev->tok) {
610 assert(n->prev->body);
611 if (NULL == n->prev->body->child)
612 return;
613 }
614
615 term_vspace(p);
616}
617
618
070c62a6
FF
619static int
620termp_ll_pre(DECL_ARGS)
621{
622
623 term_setwidth(p, n->nchild ? n->child->string : NULL);
624 return(0);
625}
626
80387638
SW
627static int
628termp_it_pre(DECL_ARGS)
629{
630 const struct mdoc_node *bl, *nn;
070c62a6
FF
631 char buf[24];
632 int i;
633 size_t width, offset, ncols, dcol;
80387638
SW
634 enum mdoc_list type;
635
636 if (MDOC_BLOCK == n->type) {
637 print_bvspace(p, n->parent->parent, n);
638 return(1);
639 }
640
641 bl = n->parent->parent->parent;
642 type = bl->norm->Bl.type;
643
070c62a6 644 /*
80387638
SW
645 * First calculate width and offset. This is pretty easy unless
646 * we're a -column list, in which case all prior columns must
647 * be accounted for.
648 */
649
650 width = offset = 0;
651
652 if (bl->norm->Bl.offs)
653 offset = a2offs(p, bl->norm->Bl.offs);
654
655 switch (type) {
070c62a6 656 case LIST_column:
80387638
SW
657 if (MDOC_HEAD == n->type)
658 break;
659
660 /*
661 * Imitate groff's column handling:
662 * - For each earlier column, add its width.
663 * - For less than 5 columns, add four more blanks per
664 * column.
665 * - For exactly 5 columns, add three more blank per
666 * column.
667 * - For more than 5 columns, add only one column.
668 */
669 ncols = bl->norm->Bl.ncols;
070c62a6
FF
670 dcol = ncols < 5 ? term_len(p, 4) :
671 ncols == 5 ? term_len(p, 3) : term_len(p, 1);
80387638
SW
672
673 /*
674 * Calculate the offset by applying all prior MDOC_BODY,
675 * so we stop at the MDOC_HEAD (NULL == nn->prev).
676 */
677
070c62a6
FF
678 for (i = 0, nn = n->prev;
679 nn->prev && i < (int)ncols;
680 nn = nn->prev, i++)
681 offset += dcol + a2width(p,
682 bl->norm->Bl.cols[i]);
80387638
SW
683
684 /*
685 * When exceeding the declared number of columns, leave
686 * the remaining widths at 0. This will later be
687 * adjusted to the default width of 10, or, for the last
688 * column, stretched to the right margin.
689 */
690 if (i >= (int)ncols)
691 break;
692
693 /*
694 * Use the declared column widths, extended as explained
695 * in the preceding paragraph.
696 */
697 width = a2width(p, bl->norm->Bl.cols[i]) + dcol;
698 break;
699 default:
700 if (NULL == bl->norm->Bl.width)
701 break;
702
070c62a6 703 /*
80387638
SW
704 * Note: buffer the width by 2, which is groff's magic
705 * number for buffering single arguments. See the above
706 * handling for column for how this changes.
707 */
708 assert(bl->norm->Bl.width);
709 width = a2width(p, bl->norm->Bl.width) + term_len(p, 2);
710 break;
711 }
712
070c62a6 713 /*
80387638
SW
714 * List-type can override the width in the case of fixed-head
715 * values (bullet, dash/hyphen, enum). Tags need a non-zero
716 * offset.
717 */
718
719 switch (type) {
070c62a6 720 case LIST_bullet:
80387638 721 /* FALLTHROUGH */
070c62a6 722 case LIST_dash:
80387638 723 /* FALLTHROUGH */
070c62a6 724 case LIST_hyphen:
f88b6c16 725 /* FALLTHROUGH */
070c62a6 726 case LIST_enum:
f88b6c16
FF
727 if (width < term_len(p, 2))
728 width = term_len(p, 2);
80387638 729 break;
070c62a6 730 case LIST_hang:
80387638
SW
731 if (0 == width)
732 width = term_len(p, 8);
733 break;
070c62a6 734 case LIST_column:
80387638 735 /* FALLTHROUGH */
070c62a6 736 case LIST_tag:
80387638
SW
737 if (0 == width)
738 width = term_len(p, 10);
739 break;
740 default:
741 break;
742 }
743
070c62a6 744 /*
80387638
SW
745 * Whitespace control. Inset bodies need an initial space,
746 * while diagonal bodies need two.
747 */
748
749 p->flags |= TERMP_NOSPACE;
750
751 switch (type) {
070c62a6 752 case LIST_diag:
80387638
SW
753 if (MDOC_BODY == n->type)
754 term_word(p, "\\ \\ ");
755 break;
070c62a6
FF
756 case LIST_inset:
757 if (MDOC_BODY == n->type && n->parent->head->nchild)
80387638
SW
758 term_word(p, "\\ ");
759 break;
760 default:
761 break;
762 }
763
764 p->flags |= TERMP_NOSPACE;
765
766 switch (type) {
070c62a6 767 case LIST_diag:
80387638
SW
768 if (MDOC_HEAD == n->type)
769 term_fontpush(p, TERMFONT_BOLD);
770 break;
771 default:
772 break;
773 }
774
775 /*
776 * Pad and break control. This is the tricky part. These flags
777 * are documented in term_flushln() in term.c. Note that we're
778 * going to unset all of these flags in termp_it_post() when we
779 * exit.
780 */
781
782 switch (type) {
070c62a6 783 case LIST_enum:
f88b6c16
FF
784 /*
785 * Weird special case.
786 * Very narrow enum lists actually hang.
787 */
788 if (width == term_len(p, 2))
789 p->flags |= TERMP_HANG;
790 /* FALLTHROUGH */
070c62a6 791 case LIST_bullet:
80387638 792 /* FALLTHROUGH */
070c62a6 793 case LIST_dash:
80387638 794 /* FALLTHROUGH */
070c62a6 795 case LIST_hyphen:
7888c61d
FF
796 if (MDOC_HEAD != n->type)
797 break;
798 p->flags |= TERMP_NOBREAK;
799 p->trailspace = 1;
80387638 800 break;
070c62a6 801 case LIST_hang:
7888c61d 802 if (MDOC_HEAD != n->type)
80387638
SW
803 break;
804
805 /*
806 * This is ugly. If `-hang' is specified and the body
807 * is a `Bl' or `Bd', then we want basically to nullify
808 * the "overstep" effect in term_flushln() and treat
809 * this as a `-ohang' list instead.
810 */
070c62a6
FF
811 if (n->next->child &&
812 (MDOC_Bl == n->next->child->tok ||
813 MDOC_Bd == n->next->child->tok))
7888c61d
FF
814 break;
815
070c62a6 816 p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
7888c61d 817 p->trailspace = 1;
80387638 818 break;
070c62a6 819 case LIST_tag:
80387638
SW
820 if (MDOC_HEAD != n->type)
821 break;
7888c61d 822
070c62a6 823 p->flags |= TERMP_NOBREAK | TERMP_BRIND;
7888c61d
FF
824 p->trailspace = 2;
825
80387638
SW
826 if (NULL == n->next || NULL == n->next->child)
827 p->flags |= TERMP_DANGLE;
828 break;
070c62a6 829 case LIST_column:
80387638
SW
830 if (MDOC_HEAD == n->type)
831 break;
832
7888c61d 833 if (NULL == n->next) {
80387638 834 p->flags &= ~TERMP_NOBREAK;
7888c61d
FF
835 p->trailspace = 0;
836 } else {
80387638 837 p->flags |= TERMP_NOBREAK;
7888c61d
FF
838 p->trailspace = 1;
839 }
80387638 840
80387638 841 break;
070c62a6 842 case LIST_diag:
7888c61d
FF
843 if (MDOC_HEAD != n->type)
844 break;
070c62a6 845 p->flags |= TERMP_NOBREAK | TERMP_BRIND;
7888c61d 846 p->trailspace = 1;
80387638
SW
847 break;
848 default:
849 break;
850 }
851
070c62a6 852 /*
80387638
SW
853 * Margin control. Set-head-width lists have their right
854 * margins shortened. The body for these lists has the offset
855 * necessarily lengthened. Everybody gets the offset.
856 */
857
858 p->offset += offset;
859
860 switch (type) {
070c62a6 861 case LIST_hang:
80387638
SW
862 /*
863 * Same stipulation as above, regarding `-hang'. We
864 * don't want to recalculate rmargin and offsets when
865 * using `Bd' or `Bl' within `-hang' overstep lists.
866 */
867 if (MDOC_HEAD == n->type && n->next->child &&
070c62a6
FF
868 (MDOC_Bl == n->next->child->tok ||
869 MDOC_Bd == n->next->child->tok))
80387638
SW
870 break;
871 /* FALLTHROUGH */
070c62a6 872 case LIST_bullet:
80387638 873 /* FALLTHROUGH */
070c62a6 874 case LIST_dash:
80387638 875 /* FALLTHROUGH */
070c62a6 876 case LIST_enum:
80387638 877 /* FALLTHROUGH */
070c62a6 878 case LIST_hyphen:
80387638 879 /* FALLTHROUGH */
070c62a6 880 case LIST_tag:
80387638
SW
881 assert(width);
882 if (MDOC_HEAD == n->type)
883 p->rmargin = p->offset + width;
070c62a6 884 else {
80387638 885 p->offset += width;
070c62a6
FF
886 if (p->rmargin < p->offset)
887 p->rmargin = p->offset;
888 }
80387638 889 break;
070c62a6 890 case LIST_column:
80387638
SW
891 assert(width);
892 p->rmargin = p->offset + width;
070c62a6 893 /*
80387638
SW
894 * XXX - this behaviour is not documented: the
895 * right-most column is filled to the right margin.
896 */
897 if (MDOC_HEAD == n->type)
898 break;
899 if (NULL == n->next && p->rmargin < p->maxrmargin)
900 p->rmargin = p->maxrmargin;
901 break;
902 default:
903 break;
904 }
905
070c62a6 906 /*
80387638 907 * The dash, hyphen, bullet and enum lists all have a special
070c62a6 908 * HEAD character (temporarily bold, in some cases).
80387638
SW
909 */
910
911 if (MDOC_HEAD == n->type)
912 switch (type) {
070c62a6 913 case LIST_bullet:
80387638
SW
914 term_fontpush(p, TERMFONT_BOLD);
915 term_word(p, "\\[bu]");
916 term_fontpop(p);
917 break;
070c62a6 918 case LIST_dash:
80387638 919 /* FALLTHROUGH */
070c62a6 920 case LIST_hyphen:
80387638
SW
921 term_fontpush(p, TERMFONT_BOLD);
922 term_word(p, "\\(hy");
923 term_fontpop(p);
924 break;
070c62a6 925 case LIST_enum:
80387638 926 (pair->ppair->ppair->count)++;
070c62a6
FF
927 (void)snprintf(buf, sizeof(buf), "%d.",
928 pair->ppair->ppair->count);
80387638
SW
929 term_word(p, buf);
930 break;
931 default:
932 break;
933 }
934
070c62a6 935 /*
80387638
SW
936 * If we're not going to process our children, indicate so here.
937 */
938
939 switch (type) {
070c62a6 940 case LIST_bullet:
80387638 941 /* FALLTHROUGH */
070c62a6 942 case LIST_item:
80387638 943 /* FALLTHROUGH */
070c62a6 944 case LIST_dash:
80387638 945 /* FALLTHROUGH */
070c62a6 946 case LIST_hyphen:
80387638 947 /* FALLTHROUGH */
070c62a6 948 case LIST_enum:
80387638
SW
949 if (MDOC_HEAD == n->type)
950 return(0);
951 break;
070c62a6 952 case LIST_column:
80387638
SW
953 if (MDOC_HEAD == n->type)
954 return(0);
955 break;
956 default:
957 break;
958 }
959
960 return(1);
961}
962
80387638
SW
963static void
964termp_it_post(DECL_ARGS)
965{
966 enum mdoc_list type;
967
968 if (MDOC_BLOCK == n->type)
969 return;
970
971 type = n->parent->parent->parent->norm->Bl.type;
972
973 switch (type) {
070c62a6 974 case LIST_item:
80387638 975 /* FALLTHROUGH */
070c62a6 976 case LIST_diag:
80387638 977 /* FALLTHROUGH */
070c62a6 978 case LIST_inset:
80387638
SW
979 if (MDOC_BODY == n->type)
980 term_newln(p);
981 break;
070c62a6 982 case LIST_column:
80387638
SW
983 if (MDOC_BODY == n->type)
984 term_flushln(p);
985 break;
986 default:
987 term_newln(p);
988 break;
989 }
990
070c62a6 991 /*
80387638
SW
992 * Now that our output is flushed, we can reset our tags. Since
993 * only `It' sets these flags, we're free to assume that nobody
994 * has munged them in the meanwhile.
995 */
996
070c62a6
FF
997 p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND |
998 TERMP_DANGLE | TERMP_HANG);
7888c61d 999 p->trailspace = 0;
80387638
SW
1000}
1001
80387638
SW
1002static int
1003termp_nm_pre(DECL_ARGS)
1004{
1005
7888c61d
FF
1006 if (MDOC_BLOCK == n->type) {
1007 p->flags |= TERMP_PREKEEP;
80387638 1008 return(1);
7888c61d 1009 }
80387638
SW
1010
1011 if (MDOC_BODY == n->type) {
1012 if (NULL == n->child)
1013 return(0);
36342e81 1014 p->flags |= TERMP_NOSPACE;
80387638 1015 p->offset += term_len(p, 1) +
f88b6c16
FF
1016 (NULL == n->prev->child ?
1017 term_strlen(p, meta->name) :
80387638 1018 MDOC_TEXT == n->prev->child->type ?
f88b6c16 1019 term_strlen(p, n->prev->child->string) :
80387638 1020 term_len(p, 5));
070c62a6
FF
1021 if (p->rmargin < p->offset)
1022 p->rmargin = p->offset;
80387638
SW
1023 return(1);
1024 }
1025
f88b6c16 1026 if (NULL == n->child && NULL == meta->name)
80387638
SW
1027 return(0);
1028
1029 if (MDOC_HEAD == n->type)
1030 synopsis_pre(p, n->parent);
1031
1032 if (MDOC_HEAD == n->type && n->next->child) {
070c62a6 1033 p->flags |= TERMP_NOSPACE | TERMP_NOBREAK | TERMP_BRIND;
7888c61d 1034 p->trailspace = 1;
80387638
SW
1035 p->rmargin = p->offset + term_len(p, 1);
1036 if (NULL == n->child) {
f88b6c16 1037 p->rmargin += term_strlen(p, meta->name);
80387638
SW
1038 } else if (MDOC_TEXT == n->child->type) {
1039 p->rmargin += term_strlen(p, n->child->string);
1040 if (n->child->next)
1041 p->flags |= TERMP_HANG;
1042 } else {
1043 p->rmargin += term_len(p, 5);
1044 p->flags |= TERMP_HANG;
1045 }
1046 }
1047
1048 term_fontpush(p, TERMFONT_BOLD);
1049 if (NULL == n->child)
f88b6c16 1050 term_word(p, meta->name);
80387638
SW
1051 return(1);
1052}
1053
80387638
SW
1054static void
1055termp_nm_post(DECL_ARGS)
1056{
1057
7888c61d
FF
1058 if (MDOC_BLOCK == n->type) {
1059 p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1060 } else if (MDOC_HEAD == n->type && n->next->child) {
80387638 1061 term_flushln(p);
070c62a6 1062 p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
7888c61d 1063 p->trailspace = 0;
36342e81 1064 } else if (MDOC_BODY == n->type && n->child)
80387638 1065 term_flushln(p);
80387638
SW
1066}
1067
80387638
SW
1068static int
1069termp_fl_pre(DECL_ARGS)
1070{
1071
1072 term_fontpush(p, TERMFONT_BOLD);
1073 term_word(p, "\\-");
1074
1075 if (n->child)
1076 p->flags |= TERMP_NOSPACE;
1077 else if (n->next && n->next->line == n->line)
1078 p->flags |= TERMP_NOSPACE;
1079
1080 return(1);
1081}
1082
80387638
SW
1083static int
1084termp__a_pre(DECL_ARGS)
1085{
1086
1087 if (n->prev && MDOC__A == n->prev->tok)
1088 if (NULL == n->next || MDOC__A != n->next->tok)
1089 term_word(p, "and");
1090
1091 return(1);
1092}
1093
80387638
SW
1094static int
1095termp_an_pre(DECL_ARGS)
1096{
1097
1098 if (NULL == n->child)
1099 return(1);
1100
1101 /*
1102 * If not in the AUTHORS section, `An -split' will cause
1103 * newlines to occur before the author name. If in the AUTHORS
1104 * section, by default, the first `An' invocation is nosplit,
1105 * then all subsequent ones, regardless of whether interspersed
1106 * with other macros/text, are split. -split, in this case,
1107 * will override the condition of the implied first -nosplit.
1108 */
070c62a6 1109
80387638
SW
1110 if (n->sec == SEC_AUTHORS) {
1111 if ( ! (TERMP_ANPREC & p->flags)) {
1112 if (TERMP_SPLIT & p->flags)
1113 term_newln(p);
1114 return(1);
1115 }
1116 if (TERMP_NOSPLIT & p->flags)
1117 return(1);
1118 term_newln(p);
1119 return(1);
1120 }
1121
1122 if (TERMP_SPLIT & p->flags)
1123 term_newln(p);
1124
1125 return(1);
1126}
1127
80387638
SW
1128static void
1129termp_an_post(DECL_ARGS)
1130{
1131
1132 if (n->child) {
1133 if (SEC_AUTHORS == n->sec)
1134 p->flags |= TERMP_ANPREC;
1135 return;
1136 }
1137
1138 if (AUTH_split == n->norm->An.auth) {
1139 p->flags &= ~TERMP_NOSPLIT;
1140 p->flags |= TERMP_SPLIT;
1141 } else if (AUTH_nosplit == n->norm->An.auth) {
1142 p->flags &= ~TERMP_SPLIT;
1143 p->flags |= TERMP_NOSPLIT;
1144 }
1145
1146}
1147
80387638
SW
1148static int
1149termp_ns_pre(DECL_ARGS)
1150{
1151
60e1e752
SW
1152 if ( ! (MDOC_LINE & n->flags))
1153 p->flags |= TERMP_NOSPACE;
80387638
SW
1154 return(1);
1155}
1156
80387638
SW
1157static int
1158termp_rs_pre(DECL_ARGS)
1159{
1160
1161 if (SEC_SEE_ALSO != n->sec)
1162 return(1);
1163 if (MDOC_BLOCK == n->type && n->prev)
1164 term_vspace(p);
1165 return(1);
1166}
1167
80387638
SW
1168static int
1169termp_rv_pre(DECL_ARGS)
1170{
60e1e752 1171 int nchild;
80387638
SW
1172
1173 term_newln(p);
80387638 1174
60e1e752 1175 nchild = n->nchild;
070c62a6
FF
1176 if (nchild > 0) {
1177 term_word(p, "The");
60e1e752 1178
070c62a6
FF
1179 for (n = n->child; n; n = n->next) {
1180 term_fontpush(p, TERMFONT_BOLD);
1181 term_word(p, n->string);
1182 term_fontpop(p);
60e1e752 1183
60e1e752 1184 p->flags |= TERMP_NOSPACE;
070c62a6
FF
1185 term_word(p, "()");
1186
1187 if (n->next == NULL)
1188 continue;
1189
1190 if (nchild > 2) {
1191 p->flags |= TERMP_NOSPACE;
1192 term_word(p, ",");
1193 }
1194 if (n->next->next == NULL)
1195 term_word(p, "and");
60e1e752
SW
1196 }
1197
070c62a6
FF
1198 if (nchild > 1)
1199 term_word(p, "functions return");
1200 else
1201 term_word(p, "function returns");
80387638 1202
070c62a6
FF
1203 term_word(p, "the value\\~0 if successful;");
1204 } else
1205 term_word(p, "Upon successful completion,"
1206 " the value\\~0 is returned;");
80387638 1207
070c62a6
FF
1208 term_word(p, "otherwise the value\\~\\-1 is returned"
1209 " and the global variable");
80387638
SW
1210
1211 term_fontpush(p, TERMFONT_UNDER);
1212 term_word(p, "errno");
1213 term_fontpop(p);
1214
070c62a6 1215 term_word(p, "is set to indicate the error.");
80387638
SW
1216 p->flags |= TERMP_SENTENCE;
1217
1218 return(0);
1219}
1220
80387638
SW
1221static int
1222termp_ex_pre(DECL_ARGS)
1223{
60e1e752 1224 int nchild;
80387638 1225
60e1e752 1226 term_newln(p);
80387638
SW
1227 term_word(p, "The");
1228
60e1e752
SW
1229 nchild = n->nchild;
1230 for (n = n->child; n; n = n->next) {
80387638 1231 term_fontpush(p, TERMFONT_BOLD);
60e1e752 1232 term_word(p, n->string);
80387638 1233 term_fontpop(p);
60e1e752
SW
1234
1235 if (nchild > 2 && n->next) {
1236 p->flags |= TERMP_NOSPACE;
80387638 1237 term_word(p, ",");
60e1e752
SW
1238 }
1239
1240 if (n->next && NULL == n->next->next)
1241 term_word(p, "and");
80387638
SW
1242 }
1243
60e1e752 1244 if (nchild > 1)
070c62a6 1245 term_word(p, "utilities exit\\~0");
80387638 1246 else
070c62a6 1247 term_word(p, "utility exits\\~0");
80387638 1248
070c62a6 1249 term_word(p, "on success, and\\~>0 if an error occurs.");
80387638 1250
60e1e752 1251 p->flags |= TERMP_SENTENCE;
80387638
SW
1252 return(0);
1253}
1254
80387638
SW
1255static int
1256termp_nd_pre(DECL_ARGS)
1257{
1258
1259 if (MDOC_BODY != n->type)
1260 return(1);
1261
1262#if defined(__OpenBSD__) || defined(__linux__)
1263 term_word(p, "\\(en");
1264#else
1265 term_word(p, "\\(em");
1266#endif
1267 return(1);
1268}
1269
80387638
SW
1270static int
1271termp_bl_pre(DECL_ARGS)
1272{
1273
1274 return(MDOC_HEAD != n->type);
1275}
1276
80387638
SW
1277static void
1278termp_bl_post(DECL_ARGS)
1279{
1280
1281 if (MDOC_BLOCK == n->type)
1282 term_newln(p);
1283}
1284
80387638
SW
1285static int
1286termp_xr_pre(DECL_ARGS)
1287{
80387638 1288
60e1e752 1289 if (NULL == (n = n->child))
80387638
SW
1290 return(0);
1291
60e1e752
SW
1292 assert(MDOC_TEXT == n->type);
1293 term_word(p, n->string);
80387638 1294
070c62a6 1295 if (NULL == (n = n->next))
80387638 1296 return(0);
60e1e752 1297
80387638
SW
1298 p->flags |= TERMP_NOSPACE;
1299 term_word(p, "(");
60e1e752
SW
1300 p->flags |= TERMP_NOSPACE;
1301
1302 assert(MDOC_TEXT == n->type);
1303 term_word(p, n->string);
1304
1305 p->flags |= TERMP_NOSPACE;
80387638
SW
1306 term_word(p, ")");
1307
1308 return(0);
1309}
1310
80387638
SW
1311/*
1312 * This decides how to assert whitespace before any of the SYNOPSIS set
1313 * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
1314 * macro combos).
1315 */
1316static void
1317synopsis_pre(struct termp *p, const struct mdoc_node *n)
1318{
070c62a6 1319 /*
80387638
SW
1320 * Obviously, if we're not in a SYNOPSIS or no prior macros
1321 * exist, do nothing.
1322 */
1323 if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
1324 return;
1325
1326 /*
1327 * If we're the second in a pair of like elements, emit our
1328 * newline and return. UNLESS we're `Fo', `Fn', `Fn', in which
1329 * case we soldier on.
1330 */
070c62a6
FF
1331 if (n->prev->tok == n->tok &&
1332 MDOC_Ft != n->tok &&
1333 MDOC_Fo != n->tok &&
1334 MDOC_Fn != n->tok) {
80387638
SW
1335 term_newln(p);
1336 return;
1337 }
1338
1339 /*
1340 * If we're one of the SYNOPSIS set and non-like pair-wise after
1341 * another (or Fn/Fo, which we've let slip through) then assert
1342 * vertical space, else only newline and move on.
1343 */
1344 switch (n->prev->tok) {
070c62a6 1345 case MDOC_Fd:
80387638 1346 /* FALLTHROUGH */
070c62a6 1347 case MDOC_Fn:
80387638 1348 /* FALLTHROUGH */
070c62a6 1349 case MDOC_Fo:
80387638 1350 /* FALLTHROUGH */
070c62a6 1351 case MDOC_In:
80387638 1352 /* FALLTHROUGH */
070c62a6 1353 case MDOC_Vt:
80387638
SW
1354 term_vspace(p);
1355 break;
070c62a6 1356 case MDOC_Ft:
80387638
SW
1357 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
1358 term_vspace(p);
1359 break;
1360 }
1361 /* FALLTHROUGH */
1362 default:
1363 term_newln(p);
1364 break;
1365 }
1366}
1367
80387638
SW
1368static int
1369termp_vt_pre(DECL_ARGS)
1370{
1371
1372 if (MDOC_ELEM == n->type) {
1373 synopsis_pre(p, n);
f88b6c16 1374 return(termp_under_pre(p, pair, meta, n));
80387638
SW
1375 } else if (MDOC_BLOCK == n->type) {
1376 synopsis_pre(p, n);
1377 return(1);
1378 } else if (MDOC_HEAD == n->type)
1379 return(0);
1380
f88b6c16 1381 return(termp_under_pre(p, pair, meta, n));
80387638
SW
1382}
1383
80387638
SW
1384static int
1385termp_bold_pre(DECL_ARGS)
1386{
1387
1388 term_fontpush(p, TERMFONT_BOLD);
1389 return(1);
1390}
1391
80387638
SW
1392static int
1393termp_fd_pre(DECL_ARGS)
1394{
1395
1396 synopsis_pre(p, n);
f88b6c16
FF
1397 return(termp_bold_pre(p, pair, meta, n));
1398}
1399
f88b6c16
FF
1400static void
1401termp_fd_post(DECL_ARGS)
1402{
1403
1404 term_newln(p);
80387638
SW
1405}
1406
80387638
SW
1407static int
1408termp_sh_pre(DECL_ARGS)
1409{
1410
1411 /* No vspace between consecutive `Sh' calls. */
1412
1413 switch (n->type) {
070c62a6 1414 case MDOC_BLOCK:
80387638
SW
1415 if (n->prev && MDOC_Sh == n->prev->tok)
1416 if (NULL == n->prev->body->child)
1417 break;
1418 term_vspace(p);
1419 break;
070c62a6 1420 case MDOC_HEAD:
80387638
SW
1421 term_fontpush(p, TERMFONT_BOLD);
1422 break;
070c62a6 1423 case MDOC_BODY:
36342e81 1424 p->offset = term_len(p, p->defindent);
f88b6c16
FF
1425 if (SEC_AUTHORS == n->sec)
1426 p->flags &= ~(TERMP_SPLIT|TERMP_NOSPLIT);
80387638
SW
1427 break;
1428 default:
1429 break;
1430 }
1431 return(1);
1432}
1433
80387638
SW
1434static void
1435termp_sh_post(DECL_ARGS)
1436{
1437
1438 switch (n->type) {
070c62a6 1439 case MDOC_HEAD:
80387638
SW
1440 term_newln(p);
1441 break;
070c62a6 1442 case MDOC_BODY:
80387638
SW
1443 term_newln(p);
1444 p->offset = 0;
1445 break;
1446 default:
1447 break;
1448 }
1449}
1450
80387638
SW
1451static int
1452termp_bt_pre(DECL_ARGS)
1453{
1454
1455 term_word(p, "is currently in beta test.");
1456 p->flags |= TERMP_SENTENCE;
1457 return(0);
1458}
1459
80387638
SW
1460static void
1461termp_lb_post(DECL_ARGS)
1462{
1463
1464 if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
1465 term_newln(p);
1466}
1467
80387638
SW
1468static int
1469termp_ud_pre(DECL_ARGS)
1470{
1471
1472 term_word(p, "currently under development.");
1473 p->flags |= TERMP_SENTENCE;
1474 return(0);
1475}
1476
80387638
SW
1477static int
1478termp_d1_pre(DECL_ARGS)
1479{
1480
1481 if (MDOC_BLOCK != n->type)
1482 return(1);
1483 term_newln(p);
36342e81 1484 p->offset += term_len(p, p->defindent + 1);
80387638
SW
1485 return(1);
1486}
1487
80387638
SW
1488static int
1489termp_ft_pre(DECL_ARGS)
1490{
1491
1492 /* NB: MDOC_LINE does not effect this! */
1493 synopsis_pre(p, n);
1494 term_fontpush(p, TERMFONT_UNDER);
1495 return(1);
1496}
1497
80387638
SW
1498static int
1499termp_fn_pre(DECL_ARGS)
1500{
7888c61d 1501 size_t rmargin = 0;
60e1e752
SW
1502 int pretty;
1503
1504 pretty = MDOC_SYNPRETTY & n->flags;
80387638
SW
1505
1506 synopsis_pre(p, n);
1507
60e1e752
SW
1508 if (NULL == (n = n->child))
1509 return(0);
1510
7888c61d
FF
1511 if (pretty) {
1512 rmargin = p->rmargin;
1513 p->rmargin = p->offset + term_len(p, 4);
070c62a6 1514 p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
7888c61d
FF
1515 }
1516
60e1e752 1517 assert(MDOC_TEXT == n->type);
80387638 1518 term_fontpush(p, TERMFONT_BOLD);
60e1e752 1519 term_word(p, n->string);
80387638
SW
1520 term_fontpop(p);
1521
7888c61d
FF
1522 if (pretty) {
1523 term_flushln(p);
070c62a6 1524 p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
7888c61d
FF
1525 p->offset = p->rmargin;
1526 p->rmargin = rmargin;
1527 }
1528
80387638
SW
1529 p->flags |= TERMP_NOSPACE;
1530 term_word(p, "(");
60e1e752 1531 p->flags |= TERMP_NOSPACE;
80387638 1532
60e1e752
SW
1533 for (n = n->next; n; n = n->next) {
1534 assert(MDOC_TEXT == n->type);
80387638 1535 term_fontpush(p, TERMFONT_UNDER);
7888c61d
FF
1536 if (pretty)
1537 p->flags |= TERMP_NBRWORD;
60e1e752 1538 term_word(p, n->string);
80387638
SW
1539 term_fontpop(p);
1540
60e1e752
SW
1541 if (n->next) {
1542 p->flags |= TERMP_NOSPACE;
80387638 1543 term_word(p, ",");
60e1e752 1544 }
80387638
SW
1545 }
1546
60e1e752 1547 p->flags |= TERMP_NOSPACE;
80387638
SW
1548 term_word(p, ")");
1549
60e1e752
SW
1550 if (pretty) {
1551 p->flags |= TERMP_NOSPACE;
80387638 1552 term_word(p, ";");
7888c61d 1553 term_flushln(p);
60e1e752 1554 }
80387638
SW
1555
1556 return(0);
1557}
1558
80387638
SW
1559static int
1560termp_fa_pre(DECL_ARGS)
1561{
1562 const struct mdoc_node *nn;
1563
1564 if (n->parent->tok != MDOC_Fo) {
1565 term_fontpush(p, TERMFONT_UNDER);
1566 return(1);
1567 }
1568
1569 for (nn = n->child; nn; nn = nn->next) {
1570 term_fontpush(p, TERMFONT_UNDER);
7888c61d 1571 p->flags |= TERMP_NBRWORD;
80387638
SW
1572 term_word(p, nn->string);
1573 term_fontpop(p);
1574
7888c61d 1575 if (nn->next || (n->next && n->next->tok == MDOC_Fa)) {
60e1e752 1576 p->flags |= TERMP_NOSPACE;
80387638 1577 term_word(p, ",");
60e1e752 1578 }
80387638
SW
1579 }
1580
80387638
SW
1581 return(0);
1582}
1583
80387638
SW
1584static int
1585termp_bd_pre(DECL_ARGS)
1586{
070c62a6 1587 size_t tabwidth, lm, len, rm, rmax;
f88b6c16 1588 struct mdoc_node *nn;
80387638
SW
1589
1590 if (MDOC_BLOCK == n->type) {
1591 print_bvspace(p, n, n);
1592 return(1);
1593 } else if (MDOC_HEAD == n->type)
1594 return(0);
1595
1596 if (n->norm->Bd.offs)
1597 p->offset += a2offs(p, n->norm->Bd.offs);
1598
1599 /*
1600 * If -ragged or -filled are specified, the block does nothing
1601 * but change the indentation. If -unfilled or -literal are
1602 * specified, text is printed exactly as entered in the display:
1603 * for macro lines, a newline is appended to the line. Blank
1604 * lines are allowed.
1605 */
070c62a6
FF
1606
1607 if (DISP_literal != n->norm->Bd.type &&
1608 DISP_unfilled != n->norm->Bd.type &&
1609 DISP_centered != n->norm->Bd.type)
80387638
SW
1610 return(1);
1611
1612 tabwidth = p->tabwidth;
1613 if (DISP_literal == n->norm->Bd.type)
1614 p->tabwidth = term_len(p, 8);
1615
070c62a6 1616 lm = p->offset;
80387638
SW
1617 rm = p->rmargin;
1618 rmax = p->maxrmargin;
1619 p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1620
1621 for (nn = n->child; nn; nn = nn->next) {
070c62a6
FF
1622 if (DISP_centered == n->norm->Bd.type) {
1623 if (MDOC_TEXT == nn->type) {
1624 len = term_strlen(p, nn->string);
1625 p->offset = len >= rm ? 0 :
1626 lm + len >= rm ? rm - len :
1627 (lm + rm - len) / 2;
1628 } else
1629 p->offset = lm;
1630 }
f88b6c16 1631 print_mdoc_node(p, pair, meta, nn);
80387638
SW
1632 /*
1633 * If the printed node flushes its own line, then we
1634 * needn't do it here as well. This is hacky, but the
1635 * notion of selective eoln whitespace is pretty dumb
1636 * anyway, so don't sweat it.
1637 */
1638 switch (nn->tok) {
070c62a6 1639 case MDOC_Sm:
80387638 1640 /* FALLTHROUGH */
070c62a6 1641 case MDOC_br:
80387638 1642 /* FALLTHROUGH */
070c62a6 1643 case MDOC_sp:
80387638 1644 /* FALLTHROUGH */
070c62a6 1645 case MDOC_Bl:
80387638 1646 /* FALLTHROUGH */
070c62a6 1647 case MDOC_D1:
80387638 1648 /* FALLTHROUGH */
070c62a6 1649 case MDOC_Dl:
80387638 1650 /* FALLTHROUGH */
070c62a6 1651 case MDOC_Lp:
80387638 1652 /* FALLTHROUGH */
070c62a6 1653 case MDOC_Pp:
80387638
SW
1654 continue;
1655 default:
1656 break;
1657 }
1658 if (nn->next && nn->next->line == nn->line)
1659 continue;
1660 term_flushln(p);
1661 p->flags |= TERMP_NOSPACE;
1662 }
1663
1664 p->tabwidth = tabwidth;
1665 p->rmargin = rm;
1666 p->maxrmargin = rmax;
1667 return(0);
1668}
1669
80387638
SW
1670static void
1671termp_bd_post(DECL_ARGS)
1672{
1673 size_t rm, rmax;
1674
070c62a6 1675 if (MDOC_BODY != n->type)
80387638
SW
1676 return;
1677
1678 rm = p->rmargin;
1679 rmax = p->maxrmargin;
1680
070c62a6
FF
1681 if (DISP_literal == n->norm->Bd.type ||
1682 DISP_unfilled == n->norm->Bd.type)
80387638
SW
1683 p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1684
1685 p->flags |= TERMP_NOSPACE;
1686 term_newln(p);
1687
1688 p->rmargin = rm;
1689 p->maxrmargin = rmax;
1690}
1691
60e1e752
SW
1692static int
1693termp_bx_pre(DECL_ARGS)
80387638
SW
1694{
1695
60e1e752
SW
1696 if (NULL != (n = n->child)) {
1697 term_word(p, n->string);
80387638 1698 p->flags |= TERMP_NOSPACE;
60e1e752
SW
1699 term_word(p, "BSD");
1700 } else {
1701 term_word(p, "BSD");
1702 return(0);
1703 }
1704
1705 if (NULL != (n = n->next)) {
1706 p->flags |= TERMP_NOSPACE;
1707 term_word(p, "-");
1708 p->flags |= TERMP_NOSPACE;
1709 term_word(p, n->string);
1710 }
1711
1712 return(0);
80387638
SW
1713}
1714
80387638
SW
1715static int
1716termp_xx_pre(DECL_ARGS)
1717{
1718 const char *pp;
60e1e752 1719 int flags;
80387638
SW
1720
1721 pp = NULL;
1722 switch (n->tok) {
070c62a6 1723 case MDOC_Bsx:
80387638
SW
1724 pp = "BSD/OS";
1725 break;
070c62a6 1726 case MDOC_Dx:
80387638
SW
1727 pp = "DragonFly";
1728 break;
070c62a6 1729 case MDOC_Fx:
80387638
SW
1730 pp = "FreeBSD";
1731 break;
070c62a6 1732 case MDOC_Nx:
80387638
SW
1733 pp = "NetBSD";
1734 break;
070c62a6 1735 case MDOC_Ox:
80387638
SW
1736 pp = "OpenBSD";
1737 break;
070c62a6 1738 case MDOC_Ux:
80387638
SW
1739 pp = "UNIX";
1740 break;
1741 default:
f88b6c16
FF
1742 abort();
1743 /* NOTREACHED */
80387638
SW
1744 }
1745
80387638 1746 term_word(p, pp);
60e1e752
SW
1747 if (n->child) {
1748 flags = p->flags;
1749 p->flags |= TERMP_KEEP;
1750 term_word(p, n->child->string);
1751 p->flags = flags;
1752 }
1753 return(0);
80387638
SW
1754}
1755
80387638
SW
1756static void
1757termp_pf_post(DECL_ARGS)
1758{
1759
1760 p->flags |= TERMP_NOSPACE;
1761}
1762
80387638
SW
1763static int
1764termp_ss_pre(DECL_ARGS)
1765{
1766
1767 switch (n->type) {
070c62a6 1768 case MDOC_BLOCK:
80387638
SW
1769 term_newln(p);
1770 if (n->prev)
1771 term_vspace(p);
1772 break;
070c62a6 1773 case MDOC_HEAD:
80387638 1774 term_fontpush(p, TERMFONT_BOLD);
36342e81 1775 p->offset = term_len(p, (p->defindent+1)/2);
80387638 1776 break;
070c62a6
FF
1777 case MDOC_BODY:
1778 p->offset = term_len(p, p->defindent);
1779 break;
80387638
SW
1780 default:
1781 break;
1782 }
1783
1784 return(1);
1785}
1786
80387638
SW
1787static void
1788termp_ss_post(DECL_ARGS)
1789{
1790
070c62a6 1791 if (n->type == MDOC_HEAD || n->type == MDOC_BODY)
80387638
SW
1792 term_newln(p);
1793}
1794
80387638
SW
1795static int
1796termp_cd_pre(DECL_ARGS)
1797{
1798
1799 synopsis_pre(p, n);
1800 term_fontpush(p, TERMFONT_BOLD);
1801 return(1);
1802}
1803
80387638
SW
1804static int
1805termp_in_pre(DECL_ARGS)
1806{
1807
1808 synopsis_pre(p, n);
1809
1810 if (MDOC_SYNPRETTY & n->flags && MDOC_LINE & n->flags) {
1811 term_fontpush(p, TERMFONT_BOLD);
1812 term_word(p, "#include");
1813 term_word(p, "<");
1814 } else {
1815 term_word(p, "<");
1816 term_fontpush(p, TERMFONT_UNDER);
1817 }
1818
1819 p->flags |= TERMP_NOSPACE;
1820 return(1);
1821}
1822
80387638
SW
1823static void
1824termp_in_post(DECL_ARGS)
1825{
1826
1827 if (MDOC_SYNPRETTY & n->flags)
1828 term_fontpush(p, TERMFONT_BOLD);
1829
1830 p->flags |= TERMP_NOSPACE;
1831 term_word(p, ">");
1832
1833 if (MDOC_SYNPRETTY & n->flags)
1834 term_fontpop(p);
1835}
1836
80387638
SW
1837static int
1838termp_sp_pre(DECL_ARGS)
1839{
1840 size_t i, len;
1841
1842 switch (n->tok) {
070c62a6 1843 case MDOC_sp:
80387638
SW
1844 len = n->child ? a2height(p, n->child->string) : 1;
1845 break;
070c62a6 1846 case MDOC_br:
80387638
SW
1847 len = 0;
1848 break;
1849 default:
1850 len = 1;
1851 break;
1852 }
1853
1854 if (0 == len)
1855 term_newln(p);
1856 for (i = 0; i < len; i++)
1857 term_vspace(p);
1858
1859 return(0);
1860}
1861
070c62a6
FF
1862static int
1863termp_es_pre(DECL_ARGS)
1864{
1865
1866 return(0);
1867}
80387638 1868
80387638
SW
1869static int
1870termp_quote_pre(DECL_ARGS)
1871{
1872
1873 if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1874 return(1);
1875
1876 switch (n->tok) {
070c62a6 1877 case MDOC_Ao:
80387638 1878 /* FALLTHROUGH */
070c62a6 1879 case MDOC_Aq:
80387638
SW
1880 term_word(p, "<");
1881 break;
070c62a6 1882 case MDOC_Bro:
80387638 1883 /* FALLTHROUGH */
070c62a6 1884 case MDOC_Brq:
80387638
SW
1885 term_word(p, "{");
1886 break;
070c62a6 1887 case MDOC_Oo:
80387638 1888 /* FALLTHROUGH */
070c62a6 1889 case MDOC_Op:
80387638 1890 /* FALLTHROUGH */
070c62a6 1891 case MDOC_Bo:
80387638 1892 /* FALLTHROUGH */
070c62a6 1893 case MDOC_Bq:
80387638
SW
1894 term_word(p, "[");
1895 break;
070c62a6 1896 case MDOC_Do:
80387638 1897 /* FALLTHROUGH */
070c62a6 1898 case MDOC_Dq:
f88b6c16 1899 term_word(p, "\\(lq");
80387638 1900 break;
070c62a6
FF
1901 case MDOC_En:
1902 if (NULL == n->norm->Es ||
1903 NULL == n->norm->Es->child)
1904 return(1);
1905 term_word(p, n->norm->Es->child->string);
1906 break;
1907 case MDOC_Eo:
36342e81 1908 break;
070c62a6 1909 case MDOC_Po:
80387638 1910 /* FALLTHROUGH */
070c62a6 1911 case MDOC_Pq:
80387638
SW
1912 term_word(p, "(");
1913 break;
070c62a6 1914 case MDOC__T:
80387638 1915 /* FALLTHROUGH */
070c62a6 1916 case MDOC_Qo:
80387638 1917 /* FALLTHROUGH */
070c62a6 1918 case MDOC_Qq:
80387638
SW
1919 term_word(p, "\"");
1920 break;
070c62a6 1921 case MDOC_Ql:
80387638 1922 /* FALLTHROUGH */
070c62a6 1923 case MDOC_So:
80387638 1924 /* FALLTHROUGH */
070c62a6 1925 case MDOC_Sq:
f88b6c16 1926 term_word(p, "\\(oq");
80387638
SW
1927 break;
1928 default:
1929 abort();
1930 /* NOTREACHED */
1931 }
1932
1933 p->flags |= TERMP_NOSPACE;
1934 return(1);
1935}
1936
80387638
SW
1937static void
1938termp_quote_post(DECL_ARGS)
1939{
1940
1941 if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1942 return;
1943
070c62a6
FF
1944 if (MDOC_En != n->tok)
1945 p->flags |= TERMP_NOSPACE;
80387638
SW
1946
1947 switch (n->tok) {
070c62a6 1948 case MDOC_Ao:
80387638 1949 /* FALLTHROUGH */
070c62a6 1950 case MDOC_Aq:
80387638
SW
1951 term_word(p, ">");
1952 break;
070c62a6 1953 case MDOC_Bro:
80387638 1954 /* FALLTHROUGH */
070c62a6 1955 case MDOC_Brq:
80387638
SW
1956 term_word(p, "}");
1957 break;
070c62a6 1958 case MDOC_Oo:
80387638 1959 /* FALLTHROUGH */
070c62a6 1960 case MDOC_Op:
80387638 1961 /* FALLTHROUGH */
070c62a6 1962 case MDOC_Bo:
80387638 1963 /* FALLTHROUGH */
070c62a6 1964 case MDOC_Bq:
80387638
SW
1965 term_word(p, "]");
1966 break;
070c62a6 1967 case MDOC_Do:
80387638 1968 /* FALLTHROUGH */
070c62a6 1969 case MDOC_Dq:
f88b6c16 1970 term_word(p, "\\(rq");
80387638 1971 break;
070c62a6
FF
1972 case MDOC_En:
1973 if (NULL != n->norm->Es &&
1974 NULL != n->norm->Es->child &&
1975 NULL != n->norm->Es->child->next) {
1976 p->flags |= TERMP_NOSPACE;
1977 term_word(p, n->norm->Es->child->next->string);
1978 }
1979 break;
1980 case MDOC_Eo:
36342e81 1981 break;
070c62a6 1982 case MDOC_Po:
80387638 1983 /* FALLTHROUGH */
070c62a6 1984 case MDOC_Pq:
80387638
SW
1985 term_word(p, ")");
1986 break;
070c62a6 1987 case MDOC__T:
80387638 1988 /* FALLTHROUGH */
070c62a6 1989 case MDOC_Qo:
80387638 1990 /* FALLTHROUGH */
070c62a6 1991 case MDOC_Qq:
80387638
SW
1992 term_word(p, "\"");
1993 break;
070c62a6 1994 case MDOC_Ql:
80387638 1995 /* FALLTHROUGH */
070c62a6 1996 case MDOC_So:
80387638 1997 /* FALLTHROUGH */
070c62a6 1998 case MDOC_Sq:
f88b6c16 1999 term_word(p, "\\(cq");
80387638
SW
2000 break;
2001 default:
2002 abort();
2003 /* NOTREACHED */
2004 }
2005}
2006
80387638
SW
2007static int
2008termp_fo_pre(DECL_ARGS)
2009{
7888c61d
FF
2010 size_t rmargin = 0;
2011 int pretty;
2012
2013 pretty = MDOC_SYNPRETTY & n->flags;
80387638
SW
2014
2015 if (MDOC_BLOCK == n->type) {
2016 synopsis_pre(p, n);
2017 return(1);
2018 } else if (MDOC_BODY == n->type) {
7888c61d
FF
2019 if (pretty) {
2020 rmargin = p->rmargin;
2021 p->rmargin = p->offset + term_len(p, 4);
070c62a6
FF
2022 p->flags |= TERMP_NOBREAK | TERMP_BRIND |
2023 TERMP_HANG;
7888c61d 2024 }
80387638
SW
2025 p->flags |= TERMP_NOSPACE;
2026 term_word(p, "(");
60e1e752 2027 p->flags |= TERMP_NOSPACE;
7888c61d
FF
2028 if (pretty) {
2029 term_flushln(p);
070c62a6
FF
2030 p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND |
2031 TERMP_HANG);
7888c61d
FF
2032 p->offset = p->rmargin;
2033 p->rmargin = rmargin;
2034 }
80387638 2035 return(1);
7888c61d 2036 }
80387638
SW
2037
2038 if (NULL == n->child)
2039 return(0);
2040
2041 /* XXX: we drop non-initial arguments as per groff. */
2042
2043 assert(n->child->string);
2044 term_fontpush(p, TERMFONT_BOLD);
2045 term_word(p, n->child->string);
2046 return(0);
2047}
2048
80387638
SW
2049static void
2050termp_fo_post(DECL_ARGS)
2051{
2052
070c62a6 2053 if (MDOC_BODY != n->type)
80387638
SW
2054 return;
2055
60e1e752 2056 p->flags |= TERMP_NOSPACE;
80387638
SW
2057 term_word(p, ")");
2058
60e1e752
SW
2059 if (MDOC_SYNPRETTY & n->flags) {
2060 p->flags |= TERMP_NOSPACE;
80387638 2061 term_word(p, ";");
7888c61d 2062 term_flushln(p);
60e1e752 2063 }
80387638
SW
2064}
2065
80387638
SW
2066static int
2067termp_bf_pre(DECL_ARGS)
2068{
2069
2070 if (MDOC_HEAD == n->type)
2071 return(0);
f88b6c16 2072 else if (MDOC_BODY != n->type)
80387638
SW
2073 return(1);
2074
070c62a6 2075 if (FONT_Em == n->norm->Bf.font)
80387638 2076 term_fontpush(p, TERMFONT_UNDER);
070c62a6 2077 else if (FONT_Sy == n->norm->Bf.font)
80387638 2078 term_fontpush(p, TERMFONT_BOLD);
070c62a6 2079 else
80387638
SW
2080 term_fontpush(p, TERMFONT_NONE);
2081
2082 return(1);
2083}
2084
80387638
SW
2085static int
2086termp_sm_pre(DECL_ARGS)
2087{
2088
070c62a6
FF
2089 if (NULL == n->child)
2090 p->flags ^= TERMP_NONOSPACE;
2091 else if (0 == strcmp("on", n->child->string))
80387638 2092 p->flags &= ~TERMP_NONOSPACE;
070c62a6 2093 else
80387638
SW
2094 p->flags |= TERMP_NONOSPACE;
2095
070c62a6
FF
2096 if (p->col && ! (TERMP_NONOSPACE & p->flags))
2097 p->flags &= ~TERMP_NOSPACE;
2098
80387638
SW
2099 return(0);
2100}
2101
80387638
SW
2102static int
2103termp_ap_pre(DECL_ARGS)
2104{
2105
2106 p->flags |= TERMP_NOSPACE;
2107 term_word(p, "'");
2108 p->flags |= TERMP_NOSPACE;
2109 return(1);
2110}
2111
80387638
SW
2112static void
2113termp____post(DECL_ARGS)
2114{
2115
2116 /*
2117 * Handle lists of authors. In general, print each followed by
2118 * a comma. Don't print the comma if there are only two
2119 * authors.
2120 */
2121 if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
2122 if (NULL == n->next->next || MDOC__A != n->next->next->tok)
2123 if (NULL == n->prev || MDOC__A != n->prev->tok)
2124 return;
2125
2126 /* TODO: %U. */
2127
2128 if (NULL == n->parent || MDOC_Rs != n->parent->tok)
2129 return;
2130
60e1e752 2131 p->flags |= TERMP_NOSPACE;
80387638
SW
2132 if (NULL == n->next) {
2133 term_word(p, ".");
2134 p->flags |= TERMP_SENTENCE;
2135 } else
2136 term_word(p, ",");
2137}
2138
80387638
SW
2139static int
2140termp_li_pre(DECL_ARGS)
2141{
2142
2143 term_fontpush(p, TERMFONT_NONE);
2144 return(1);
2145}
2146
80387638
SW
2147static int
2148termp_lk_pre(DECL_ARGS)
2149{
f88b6c16 2150 const struct mdoc_node *link, *descr;
80387638 2151
f88b6c16
FF
2152 if (NULL == (link = n->child))
2153 return(0);
80387638 2154
f88b6c16
FF
2155 if (NULL != (descr = link->next)) {
2156 term_fontpush(p, TERMFONT_UNDER);
2157 while (NULL != descr) {
2158 term_word(p, descr->string);
2159 descr = descr->next;
2160 }
2161 p->flags |= TERMP_NOSPACE;
2162 term_word(p, ":");
2163 term_fontpop(p);
2164 }
80387638
SW
2165
2166 term_fontpush(p, TERMFONT_BOLD);
f88b6c16 2167 term_word(p, link->string);
80387638
SW
2168 term_fontpop(p);
2169
2170 return(0);
2171}
2172
80387638
SW
2173static int
2174termp_bk_pre(DECL_ARGS)
2175{
2176
2177 switch (n->type) {
070c62a6 2178 case MDOC_BLOCK:
80387638 2179 break;
070c62a6 2180 case MDOC_HEAD:
80387638 2181 return(0);
070c62a6 2182 case MDOC_BODY:
80387638
SW
2183 if (n->parent->args || 0 == n->prev->nchild)
2184 p->flags |= TERMP_PREKEEP;
2185 break;
2186 default:
2187 abort();
2188 /* NOTREACHED */
2189 }
2190
2191 return(1);
2192}
2193
80387638
SW
2194static void
2195termp_bk_post(DECL_ARGS)
2196{
2197
7888c61d 2198 if (MDOC_BODY == n->type)
80387638
SW
2199 p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
2200}
2201
80387638
SW
2202static void
2203termp__t_post(DECL_ARGS)
2204{
2205
2206 /*
2207 * If we're in an `Rs' and there's a journal present, then quote
2208 * us instead of underlining us (for disambiguation).
2209 */
60e1e752 2210 if (n->parent && MDOC_Rs == n->parent->tok &&
070c62a6 2211 n->parent->norm->Rs.quote_T)
f88b6c16 2212 termp_quote_post(p, pair, meta, n);
80387638 2213
f88b6c16 2214 termp____post(p, pair, meta, n);
80387638
SW
2215}
2216
80387638
SW
2217static int
2218termp__t_pre(DECL_ARGS)
2219{
2220
2221 /*
2222 * If we're in an `Rs' and there's a journal present, then quote
2223 * us instead of underlining us (for disambiguation).
2224 */
2225 if (n->parent && MDOC_Rs == n->parent->tok &&
070c62a6 2226 n->parent->norm->Rs.quote_T)
f88b6c16 2227 return(termp_quote_pre(p, pair, meta, n));
80387638
SW
2228
2229 term_fontpush(p, TERMFONT_UNDER);
2230 return(1);
2231}
2232
80387638
SW
2233static int
2234termp_under_pre(DECL_ARGS)
2235{
2236
2237 term_fontpush(p, TERMFONT_UNDER);
2238 return(1);
2239}