external/bsd/mdocml/dist/mdoc_term.c

   1 /*      Id: mdoc_term.c,v 1.258 2013/12/25 21:24:12 schwarze Exp  */
   2 /*
   3  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   4  * Copyright (c) 2010, 2012, 2013 Ingo Schwarze <schwarze@openbsd.org>
   5  * Copyright (c) 2013 Franco Fichtner <franco@lastsummer.de>
   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"
  33 #include "out.h"
  34 #include "term.h"
  35 #include "mdoc.h"
  36 #include "main.h"
  37
  38 struct  termpair {
  39         struct termpair  *ppair;
  40         int               count;
  41 };
  42
  43 #define DECL_ARGS struct termp *p, \
  44                   struct termpair *pair, \
  45                   const struct mdoc_meta *meta, \
  46                   struct mdoc_node *n
  47
  48 struct  termact {
  49         int     (*pre)(DECL_ARGS);
  50         void    (*post)(DECL_ARGS);
  51 };
  52
  53 static  size_t    a2width(const struct termp *, const char *);
  54 static  size_t    a2height(const struct termp *, const char *);
  55 static  size_t    a2offs(const struct termp *, const char *);
  56
  57 static  void      print_bvspace(struct termp *,
  58                         const struct mdoc_node *,
  59                         const struct mdoc_node *);
  60 static  void      print_mdoc_node(DECL_ARGS);
  61 static  void      print_mdoc_nodelist(DECL_ARGS);
  62 static  void      print_mdoc_head(struct termp *, const void *);
  63 static  void      print_mdoc_foot(struct termp *, const void *);
  64 static  void      synopsis_pre(struct termp *,
  65                         const struct mdoc_node *);
  66
  67 static  void      termp____post(DECL_ARGS);
  68 static  void      termp__t_post(DECL_ARGS);
  69 static  void      termp_an_post(DECL_ARGS);
  70 static  void      termp_bd_post(DECL_ARGS);
  71 static  void      termp_bk_post(DECL_ARGS);
  72 static  void      termp_bl_post(DECL_ARGS);
  73 static  void      termp_fd_post(DECL_ARGS);
  74 static  void      termp_fo_post(DECL_ARGS);
  75 static  void      termp_in_post(DECL_ARGS);
  76 static  void      termp_it_post(DECL_ARGS);
  77 static  void      termp_lb_post(DECL_ARGS);
  78 static  void      termp_nm_post(DECL_ARGS);
  79 static  void      termp_pf_post(DECL_ARGS);
  80 static  void      termp_quote_post(DECL_ARGS);
  81 static  void      termp_sh_post(DECL_ARGS);
  82 static  void      termp_ss_post(DECL_ARGS);
  83
  84 static  int       termp__a_pre(DECL_ARGS);
  85 static  int       termp__t_pre(DECL_ARGS);
  86 static  int       termp_an_pre(DECL_ARGS);
  87 static  int       termp_ap_pre(DECL_ARGS);
  88 static  int       termp_bd_pre(DECL_ARGS);
  89 static  int       termp_bf_pre(DECL_ARGS);
  90 static  int       termp_bk_pre(DECL_ARGS);
  91 static  int       termp_bl_pre(DECL_ARGS);
  92 static  int       termp_bold_pre(DECL_ARGS);
  93 static  int       termp_bt_pre(DECL_ARGS);
  94 static  int       termp_bx_pre(DECL_ARGS);
  95 static  int       termp_cd_pre(DECL_ARGS);
  96 static  int       termp_d1_pre(DECL_ARGS);
  97 static  int       termp_ex_pre(DECL_ARGS);
  98 static  int       termp_fa_pre(DECL_ARGS);
  99 static  int       termp_fd_pre(DECL_ARGS);
 100 static  int       termp_fl_pre(DECL_ARGS);
 101 static  int       termp_fn_pre(DECL_ARGS);
 102 static  int       termp_fo_pre(DECL_ARGS);
 103 static  int       termp_ft_pre(DECL_ARGS);
 104 static  int       termp_in_pre(DECL_ARGS);
 105 static  int       termp_it_pre(DECL_ARGS);
 106 static  int       termp_li_pre(DECL_ARGS);
 107 static  int       termp_lk_pre(DECL_ARGS);
 108 static  int       termp_nd_pre(DECL_ARGS);
 109 static  int       termp_nm_pre(DECL_ARGS);
 110 static  int       termp_ns_pre(DECL_ARGS);
 111 static  int       termp_quote_pre(DECL_ARGS);
 112 static  int       termp_rs_pre(DECL_ARGS);
 113 static  int       termp_rv_pre(DECL_ARGS);
 114 static  int       termp_sh_pre(DECL_ARGS);
 115 static  int       termp_sm_pre(DECL_ARGS);
 116 static  int       termp_sp_pre(DECL_ARGS);
 117 static  int       termp_ss_pre(DECL_ARGS);
 118 static  int       termp_under_pre(DECL_ARGS);
 119 static  int       termp_ud_pre(DECL_ARGS);
 120 static  int       termp_vt_pre(DECL_ARGS);
 121 static  int       termp_xr_pre(DECL_ARGS);
 122 static  int       termp_xx_pre(DECL_ARGS);
 123
 124 static  const struct termact termacts[MDOC_MAX] = {
 125         { termp_ap_pre, NULL }, /* Ap */
 126         { NULL, NULL }, /* Dd */
 127         { NULL, NULL }, /* Dt */
 128         { NULL, NULL }, /* Os */
 129         { termp_sh_pre, termp_sh_post }, /* Sh */
 130         { termp_ss_pre, termp_ss_post }, /* Ss */
 131         { termp_sp_pre, NULL }, /* Pp */
 132         { termp_d1_pre, termp_bl_post }, /* D1 */
 133         { termp_d1_pre, termp_bl_post }, /* Dl */
 134         { termp_bd_pre, termp_bd_post }, /* Bd */
 135         { NULL, NULL }, /* Ed */
 136         { termp_bl_pre, termp_bl_post }, /* Bl */
 137         { NULL, NULL }, /* El */
 138         { termp_it_pre, termp_it_post }, /* It */
 139         { termp_under_pre, NULL }, /* Ad */
 140         { termp_an_pre, termp_an_post }, /* An */
 141         { termp_under_pre, NULL }, /* Ar */
 142         { termp_cd_pre, NULL }, /* Cd */
 143         { termp_bold_pre, NULL }, /* Cm */
 144         { NULL, NULL }, /* Dv */
 145         { NULL, NULL }, /* Er */
 146         { NULL, NULL }, /* Ev */
 147         { termp_ex_pre, NULL }, /* Ex */
 148         { termp_fa_pre, NULL }, /* Fa */
 149         { termp_fd_pre, termp_fd_post }, /* Fd */
 150         { termp_fl_pre, NULL }, /* Fl */
 151         { termp_fn_pre, NULL }, /* Fn */
 152         { termp_ft_pre, NULL }, /* Ft */
 153         { termp_bold_pre, NULL }, /* Ic */
 154         { termp_in_pre, termp_in_post }, /* In */
 155         { termp_li_pre, NULL }, /* Li */
 156         { termp_nd_pre, NULL }, /* Nd */
 157         { termp_nm_pre, termp_nm_post }, /* Nm */
 158         { termp_quote_pre, termp_quote_post }, /* Op */
 159         { NULL, NULL }, /* Ot */
 160         { termp_under_pre, NULL }, /* Pa */
 161         { termp_rv_pre, NULL }, /* Rv */
 162         { NULL, NULL }, /* St */
 163         { termp_under_pre, NULL }, /* Va */
 164         { termp_vt_pre, NULL }, /* Vt */
 165         { termp_xr_pre, NULL }, /* Xr */
 166         { termp__a_pre, termp____post }, /* %A */
 167         { termp_under_pre, termp____post }, /* %B */
 168         { NULL, termp____post }, /* %D */
 169         { termp_under_pre, termp____post }, /* %I */
 170         { termp_under_pre, termp____post }, /* %J */
 171         { NULL, termp____post }, /* %N */
 172         { NULL, termp____post }, /* %O */
 173         { NULL, termp____post }, /* %P */
 174         { NULL, termp____post }, /* %R */
 175         { termp__t_pre, termp__t_post }, /* %T */
 176         { NULL, termp____post }, /* %V */
 177         { NULL, NULL }, /* Ac */
 178         { termp_quote_pre, termp_quote_post }, /* Ao */
 179         { termp_quote_pre, termp_quote_post }, /* Aq */
 180         { NULL, NULL }, /* At */
 181         { NULL, NULL }, /* Bc */
 182         { termp_bf_pre, NULL }, /* Bf */
 183         { termp_quote_pre, termp_quote_post }, /* Bo */
 184         { termp_quote_pre, termp_quote_post }, /* Bq */
 185         { termp_xx_pre, NULL }, /* Bsx */
 186         { termp_bx_pre, NULL }, /* Bx */
 187         { NULL, NULL }, /* Db */
 188         { NULL, NULL }, /* Dc */
 189         { termp_quote_pre, termp_quote_post }, /* Do */
 190         { termp_quote_pre, termp_quote_post }, /* Dq */
 191         { NULL, NULL }, /* Ec */ /* FIXME: no space */
 192         { NULL, NULL }, /* Ef */
 193         { termp_under_pre, NULL }, /* Em */
 194         { termp_quote_pre, termp_quote_post }, /* Eo */
 195         { termp_xx_pre, NULL }, /* Fx */
 196         { termp_bold_pre, NULL }, /* Ms */
 197         { NULL, NULL }, /* No */
 198         { termp_ns_pre, NULL }, /* Ns */
 199         { termp_xx_pre, NULL }, /* Nx */
 200         { termp_xx_pre, NULL }, /* Ox */
 201         { NULL, NULL }, /* Pc */
 202         { NULL, termp_pf_post }, /* Pf */
 203         { termp_quote_pre, termp_quote_post }, /* Po */
 204         { termp_quote_pre, termp_quote_post }, /* Pq */
 205         { NULL, NULL }, /* Qc */
 206         { termp_quote_pre, termp_quote_post }, /* Ql */
 207         { termp_quote_pre, termp_quote_post }, /* Qo */
 208         { termp_quote_pre, termp_quote_post }, /* Qq */
 209         { NULL, NULL }, /* Re */
 210         { termp_rs_pre, NULL }, /* Rs */
 211         { NULL, NULL }, /* Sc */
 212         { termp_quote_pre, termp_quote_post }, /* So */
 213         { termp_quote_pre, termp_quote_post }, /* Sq */
 214         { termp_sm_pre, NULL }, /* Sm */
 215         { termp_under_pre, NULL }, /* Sx */
 216         { termp_bold_pre, NULL }, /* Sy */
 217         { NULL, NULL }, /* Tn */
 218         { termp_xx_pre, NULL }, /* Ux */
 219         { NULL, NULL }, /* Xc */
 220         { NULL, NULL }, /* Xo */
 221         { termp_fo_pre, termp_fo_post }, /* Fo */
 222         { NULL, NULL }, /* Fc */
 223         { termp_quote_pre, termp_quote_post }, /* Oo */
 224         { NULL, NULL }, /* Oc */
 225         { termp_bk_pre, termp_bk_post }, /* Bk */
 226         { NULL, NULL }, /* Ek */
 227         { termp_bt_pre, NULL }, /* Bt */
 228         { NULL, NULL }, /* Hf */
 229         { NULL, NULL }, /* Fr */
 230         { termp_ud_pre, NULL }, /* Ud */
 231         { NULL, termp_lb_post }, /* Lb */
 232         { termp_sp_pre, NULL }, /* Lp */
 233         { termp_lk_pre, NULL }, /* Lk */
 234         { termp_under_pre, NULL }, /* Mt */
 235         { termp_quote_pre, termp_quote_post }, /* Brq */
 236         { termp_quote_pre, termp_quote_post }, /* Bro */
 237         { NULL, NULL }, /* Brc */
 238         { NULL, termp____post }, /* %C */
 239         { NULL, NULL }, /* Es */ /* TODO */
 240         { NULL, NULL }, /* En */ /* TODO */
 241         { termp_xx_pre, NULL }, /* Dx */
 242         { NULL, termp____post }, /* %Q */
 243         { termp_sp_pre, NULL }, /* br */
 244         { termp_sp_pre, NULL }, /* sp */
 245         { NULL, termp____post }, /* %U */
 246         { NULL, NULL }, /* Ta */
 247 };
 248
 249
 250 void
 251 terminal_mdoc(void *arg, const struct mdoc *mdoc)
 252 {
 253         const struct mdoc_node  *n;
 254         const struct mdoc_meta  *meta;
 255         struct termp            *p;
 256
 257         p = (struct termp *)arg;
 258
 259         if (0 == p->defindent)
 260                 p->defindent = 5;
 261
 262         p->overstep = 0;
 263         p->maxrmargin = p->defrmargin;
 264         p->tabwidth = term_len(p, 5);
 265
 266         if (NULL == p->symtab)
 267                 p->symtab = mchars_alloc();
 268
 269         n = mdoc_node(mdoc);
 270         meta = mdoc_meta(mdoc);
 271
 272         term_begin(p, print_mdoc_head, print_mdoc_foot, meta);
 273
 274         if (n->child)
 275                 print_mdoc_nodelist(p, NULL, meta, n->child);
 276
 277         term_end(p);
 278 }
 279
 280
 281 static void
 282 print_mdoc_nodelist(DECL_ARGS)
 283 {
 284
 285         print_mdoc_node(p, pair, meta, n);
 286         if (n->next)
 287                 print_mdoc_nodelist(p, pair, meta, n->next);
 288 }
 289
 290
 291 /* ARGSUSED */
 292 static void
 293 print_mdoc_node(DECL_ARGS)
 294 {
 295         int              chld;
 296         struct termpair  npair;
 297         size_t           offset, rmargin;
 298
 299         chld = 1;
 300         offset = p->offset;
 301         rmargin = p->rmargin;
 302         n->prev_font = term_fontq(p);
 303
 304         memset(&npair, 0, sizeof(struct termpair));
 305         npair.ppair = pair;
 306
 307         /*
 308          * Keeps only work until the end of a line.  If a keep was
 309          * invoked in a prior line, revert it to PREKEEP.
 310          */
 311
 312         if (TERMP_KEEP & p->flags) {
 313                 if (n->prev ? (n->prev->lastline != n->line) :
 314                     (n->parent && n->parent->line != n->line)) {
 315                         p->flags &= ~TERMP_KEEP;
 316                         p->flags |= TERMP_PREKEEP;
 317                 }
 318         }
 319
 320         /*
 321          * After the keep flags have been set up, we may now
 322          * produce output.  Note that some pre-handlers do so.
 323          */
 324
 325         switch (n->type) {
 326         case (MDOC_TEXT):
 327                 if (' ' == *n->string && MDOC_LINE & n->flags)
 328                         term_newln(p);
 329                 if (MDOC_DELIMC & n->flags)
 330                         p->flags |= TERMP_NOSPACE;
 331                 term_word(p, n->string);
 332                 if (MDOC_DELIMO & n->flags)
 333                         p->flags |= TERMP_NOSPACE;
 334                 break;
 335         case (MDOC_EQN):
 336                 term_eqn(p, n->eqn);
 337                 break;
 338         case (MDOC_TBL):
 339                 term_tbl(p, n->span);
 340                 break;
 341         default:
 342                 if (termacts[n->tok].pre && ENDBODY_NOT == n->end)
 343                         chld = (*termacts[n->tok].pre)
 344                                 (p, &npair, meta, n);
 345                 break;
 346         }
 347
 348         if (chld && n->child)
 349                 print_mdoc_nodelist(p, &npair, meta, n->child);
 350
 351         term_fontpopq(p,
 352             (ENDBODY_NOT == n->end ? n : n->pending)->prev_font);
 353
 354         switch (n->type) {
 355         case (MDOC_TEXT):
 356                 break;
 357         case (MDOC_TBL):
 358                 break;
 359         case (MDOC_EQN):
 360                 break;
 361         default:
 362                 if ( ! termacts[n->tok].post || MDOC_ENDED & n->flags)
 363                         break;
 364                 (void)(*termacts[n->tok].post)(p, &npair, meta, n);
 365
 366                 /*
 367                  * Explicit end tokens not only call the post
 368                  * handler, but also tell the respective block
 369                  * that it must not call the post handler again.
 370                  */
 371                 if (ENDBODY_NOT != n->end)
 372                         n->pending->flags |= MDOC_ENDED;
 373
 374                 /*
 375                  * End of line terminating an implicit block
 376                  * while an explicit block is still open.
 377                  * Continue the explicit block without spacing.
 378                  */
 379                 if (ENDBODY_NOSPACE == n->end)
 380                         p->flags |= TERMP_NOSPACE;
 381                 break;
 382         }
 383
 384         if (MDOC_EOS & n->flags)
 385                 p->flags |= TERMP_SENTENCE;
 386
 387         p->offset = offset;
 388         p->rmargin = rmargin;
 389 }
 390
 391
 392 static void
 393 print_mdoc_foot(struct termp *p, const void *arg)
 394 {
 395         const struct mdoc_meta *meta;
 396
 397         meta = (const struct mdoc_meta *)arg;
 398
 399         term_fontrepl(p, TERMFONT_NONE);
 400
 401         /*
 402          * Output the footer in new-groff style, that is, three columns
 403          * with the middle being the manual date and flanking columns
 404          * being the operating system:
 405          *
 406          * SYSTEM                  DATE                    SYSTEM
 407          */
 408
 409         term_vspace(p);
 410
 411         p->offset = 0;
 412         p->rmargin = (p->maxrmargin -
 413                         term_strlen(p, meta->date) + term_len(p, 1)) / 2;
 414         p->trailspace = 1;
 415         p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
 416
 417         term_word(p, meta->os);
 418         term_flushln(p);
 419
 420         p->offset = p->rmargin;
 421         p->rmargin = p->maxrmargin - term_strlen(p, meta->os);
 422         p->flags |= TERMP_NOSPACE;
 423
 424         term_word(p, meta->date);
 425         term_flushln(p);
 426
 427         p->offset = p->rmargin;
 428         p->rmargin = p->maxrmargin;
 429         p->trailspace = 0;
 430         p->flags &= ~TERMP_NOBREAK;
 431         p->flags |= TERMP_NOSPACE;
 432
 433         term_word(p, meta->os);
 434         term_flushln(p);
 435
 436         p->offset = 0;
 437         p->rmargin = p->maxrmargin;
 438         p->flags = 0;
 439 }
 440
 441
 442 static void
 443 print_mdoc_head(struct termp *p, const void *arg)
 444 {
 445         char            buf[BUFSIZ], title[BUFSIZ];
 446         size_t          buflen, titlen;
 447         const struct mdoc_meta *meta;
 448
 449         meta = (const struct mdoc_meta *)arg;
 450
 451         /*
 452          * The header is strange.  It has three components, which are
 453          * really two with the first duplicated.  It goes like this:
 454          *
 455          * IDENTIFIER              TITLE                   IDENTIFIER
 456          *
 457          * The IDENTIFIER is NAME(SECTION), which is the command-name
 458          * (if given, or "unknown" if not) followed by the manual page
 459          * section.  These are given in `Dt'.  The TITLE is a free-form
 460          * string depending on the manual volume.  If not specified, it
 461          * switches on the manual section.
 462          */
 463
 464         p->offset = 0;
 465         p->rmargin = p->maxrmargin;
 466
 467         assert(meta->vol);
 468         strlcpy(buf, meta->vol, BUFSIZ);
 469         buflen = term_strlen(p, buf);
 470
 471         if (meta->arch) {
 472                 strlcat(buf, " (", BUFSIZ);
 473                 strlcat(buf, meta->arch, BUFSIZ);
 474                 strlcat(buf, ")", BUFSIZ);
 475         }
 476
 477         snprintf(title, BUFSIZ, "%s(%s)", meta->title, meta->msec);
 478         titlen = term_strlen(p, title);
 479
 480         p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
 481         p->trailspace = 1;
 482         p->offset = 0;
 483         p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
 484             (p->maxrmargin -
 485              term_strlen(p, buf) + term_len(p, 1)) / 2 :
 486             p->maxrmargin - buflen;
 487
 488         term_word(p, title);
 489         term_flushln(p);
 490
 491         p->flags |= TERMP_NOSPACE;
 492         p->offset = p->rmargin;
 493         p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
 494             p->maxrmargin - titlen : p->maxrmargin;
 495
 496         term_word(p, buf);
 497         term_flushln(p);
 498
 499         p->flags &= ~TERMP_NOBREAK;
 500         p->trailspace = 0;
 501         if (p->rmargin + titlen <= p->maxrmargin) {
 502                 p->flags |= TERMP_NOSPACE;
 503                 p->offset = p->rmargin;
 504                 p->rmargin = p->maxrmargin;
 505                 term_word(p, title);
 506                 term_flushln(p);
 507         }
 508
 509         p->flags &= ~TERMP_NOSPACE;
 510         p->offset = 0;
 511         p->rmargin = p->maxrmargin;
 512 }
 513
 514
 515 static size_t
 516 a2height(const struct termp *p, const char *v)
 517 {
 518         struct roffsu    su;
 519
 520
 521         assert(v);
 522         if ( ! a2roffsu(v, &su, SCALE_VS))
 523                 SCALE_VS_INIT(&su, atoi(v));
 524
 525         return(term_vspan(p, &su));
 526 }
 527
 528
 529 static size_t
 530 a2width(const struct termp *p, const char *v)
 531 {
 532         struct roffsu    su;
 533
 534         assert(v);
 535         if ( ! a2roffsu(v, &su, SCALE_MAX))
 536                 SCALE_HS_INIT(&su, term_strlen(p, v));
 537
 538         return(term_hspan(p, &su));
 539 }
 540
 541
 542 static size_t
 543 a2offs(const struct termp *p, const char *v)
 544 {
 545         struct roffsu    su;
 546
 547         if ('\0' == *v)
 548                 return(0);
 549         else if (0 == strcmp(v, "left"))
 550                 return(0);
 551         else if (0 == strcmp(v, "indent"))
 552                 return(term_len(p, p->defindent + 1));
 553         else if (0 == strcmp(v, "indent-two"))
 554                 return(term_len(p, (p->defindent + 1) * 2));
 555         else if ( ! a2roffsu(v, &su, SCALE_MAX))
 556                 SCALE_HS_INIT(&su, term_strlen(p, v));
 557
 558         return(term_hspan(p, &su));
 559 }
 560
 561
 562 /*
 563  * Determine how much space to print out before block elements of `It'
 564  * (and thus `Bl') and `Bd'.  And then go ahead and print that space,
 565  * too.
 566  */
 567 static void
 568 print_bvspace(struct termp *p,
 569                 const struct mdoc_node *bl,
 570                 const struct mdoc_node *n)
 571 {
 572         const struct mdoc_node  *nn;
 573
 574         assert(n);
 575
 576         term_newln(p);
 577
 578         if (MDOC_Bd == bl->tok && bl->norm->Bd.comp)
 579                 return;
 580         if (MDOC_Bl == bl->tok && bl->norm->Bl.comp)
 581                 return;
 582
 583         /* Do not vspace directly after Ss/Sh. */
 584
 585         for (nn = n; nn; nn = nn->parent) {
 586                 if (MDOC_BLOCK != nn->type)
 587                         continue;
 588                 if (MDOC_Ss == nn->tok)
 589                         return;
 590                 if (MDOC_Sh == nn->tok)
 591                         return;
 592                 if (NULL == nn->prev)
 593                         continue;
 594                 break;
 595         }
 596
 597         /* A `-column' does not assert vspace within the list. */
 598
 599         if (MDOC_Bl == bl->tok && LIST_column == bl->norm->Bl.type)
 600                 if (n->prev && MDOC_It == n->prev->tok)
 601                         return;
 602
 603         /* A `-diag' without body does not vspace. */
 604
 605         if (MDOC_Bl == bl->tok && LIST_diag == bl->norm->Bl.type)
 606                 if (n->prev && MDOC_It == n->prev->tok) {
 607                         assert(n->prev->body);
 608                         if (NULL == n->prev->body->child)
 609                                 return;
 610                 }
 611
 612         term_vspace(p);
 613 }
 614
 615
 616 /* ARGSUSED */
 617 static int
 618 termp_it_pre(DECL_ARGS)
 619 {
 620         const struct mdoc_node *bl, *nn;
 621         char                    buf[7];
 622         int                     i;
 623         size_t                  width, offset, ncols, dcol;
 624         enum mdoc_list          type;
 625
 626         if (MDOC_BLOCK == n->type) {
 627                 print_bvspace(p, n->parent->parent, n);
 628                 return(1);
 629         }
 630
 631         bl = n->parent->parent->parent;
 632         type = bl->norm->Bl.type;
 633
 634         /*
 635          * First calculate width and offset.  This is pretty easy unless
 636          * we're a -column list, in which case all prior columns must
 637          * be accounted for.
 638          */
 639
 640         width = offset = 0;
 641
 642         if (bl->norm->Bl.offs)
 643                 offset = a2offs(p, bl->norm->Bl.offs);
 644
 645         switch (type) {
 646         case (LIST_column):
 647                 if (MDOC_HEAD == n->type)
 648                         break;
 649
 650                 /*
 651                  * Imitate groff's column handling:
 652                  * - For each earlier column, add its width.
 653                  * - For less than 5 columns, add four more blanks per
 654                  *   column.
 655                  * - For exactly 5 columns, add three more blank per
 656                  *   column.
 657                  * - For more than 5 columns, add only one column.
 658                  */
 659                 ncols = bl->norm->Bl.ncols;
 660
 661                 /* LINTED */
 662                 dcol = ncols < 5 ? term_len(p, 4) :
 663                         ncols == 5 ? term_len(p, 3) : term_len(p, 1);
 664
 665                 /*
 666                  * Calculate the offset by applying all prior MDOC_BODY,
 667                  * so we stop at the MDOC_HEAD (NULL == nn->prev).
 668                  */
 669
 670                 for (i = 0, nn = n->prev;
 671                                 nn->prev && i < (int)ncols;
 672                                 nn = nn->prev, i++)
 673                         offset += dcol + a2width
 674                                 (p, bl->norm->Bl.cols[i]);
 675
 676                 /*
 677                  * When exceeding the declared number of columns, leave
 678                  * the remaining widths at 0.  This will later be
 679                  * adjusted to the default width of 10, or, for the last
 680                  * column, stretched to the right margin.
 681                  */
 682                 if (i >= (int)ncols)
 683                         break;
 684
 685                 /*
 686                  * Use the declared column widths, extended as explained
 687                  * in the preceding paragraph.
 688                  */
 689                 width = a2width(p, bl->norm->Bl.cols[i]) + dcol;
 690                 break;
 691         default:
 692                 if (NULL == bl->norm->Bl.width)
 693                         break;
 694
 695                 /*
 696                  * Note: buffer the width by 2, which is groff's magic
 697                  * number for buffering single arguments.  See the above
 698                  * handling for column for how this changes.
 699                  */
 700                 assert(bl->norm->Bl.width);
 701                 width = a2width(p, bl->norm->Bl.width) + term_len(p, 2);
 702                 break;
 703         }
 704
 705         /*
 706          * List-type can override the width in the case of fixed-head
 707          * values (bullet, dash/hyphen, enum).  Tags need a non-zero
 708          * offset.
 709          */
 710
 711         switch (type) {
 712         case (LIST_bullet):
 713                 /* FALLTHROUGH */
 714         case (LIST_dash):
 715                 /* FALLTHROUGH */
 716         case (LIST_hyphen):
 717                 /* FALLTHROUGH */
 718         case (LIST_enum):
 719                 if (width < term_len(p, 2))
 720                         width = term_len(p, 2);
 721                 break;
 722         case (LIST_hang):
 723                 if (0 == width)
 724                         width = term_len(p, 8);
 725                 break;
 726         case (LIST_column):
 727                 /* FALLTHROUGH */
 728         case (LIST_tag):
 729                 if (0 == width)
 730                         width = term_len(p, 10);
 731                 break;
 732         default:
 733                 break;
 734         }
 735
 736         /*
 737          * Whitespace control.  Inset bodies need an initial space,
 738          * while diagonal bodies need two.
 739          */
 740
 741         p->flags |= TERMP_NOSPACE;
 742
 743         switch (type) {
 744         case (LIST_diag):
 745                 if (MDOC_BODY == n->type)
 746                         term_word(p, "\\ \\ ");
 747                 break;
 748         case (LIST_inset):
 749                 if (MDOC_BODY == n->type)
 750                         term_word(p, "\\ ");
 751                 break;
 752         default:
 753                 break;
 754         }
 755
 756         p->flags |= TERMP_NOSPACE;
 757
 758         switch (type) {
 759         case (LIST_diag):
 760                 if (MDOC_HEAD == n->type)
 761                         term_fontpush(p, TERMFONT_BOLD);
 762                 break;
 763         default:
 764                 break;
 765         }
 766
 767         /*
 768          * Pad and break control.  This is the tricky part.  These flags
 769          * are documented in term_flushln() in term.c.  Note that we're
 770          * going to unset all of these flags in termp_it_post() when we
 771          * exit.
 772          */
 773
 774         switch (type) {
 775         case (LIST_enum):
 776                 /*
 777                  * Weird special case.
 778                  * Very narrow enum lists actually hang.
 779                  */
 780                 if (width == term_len(p, 2))
 781                         p->flags |= TERMP_HANG;
 782                 /* FALLTHROUGH */
 783         case (LIST_bullet):
 784                 /* FALLTHROUGH */
 785         case (LIST_dash):
 786                 /* FALLTHROUGH */
 787         case (LIST_hyphen):
 788                 if (MDOC_HEAD != n->type)
 789                         break;
 790                 p->flags |= TERMP_NOBREAK;
 791                 p->trailspace = 1;
 792                 break;
 793         case (LIST_hang):
 794                 if (MDOC_HEAD != n->type)
 795                         break;
 796
 797                 /*
 798                  * This is ugly.  If `-hang' is specified and the body
 799                  * is a `Bl' or `Bd', then we want basically to nullify
 800                  * the "overstep" effect in term_flushln() and treat
 801                  * this as a `-ohang' list instead.
 802                  */
 803                 if (n->next->child &&
 804                                 (MDOC_Bl == n->next->child->tok ||
 805                                  MDOC_Bd == n->next->child->tok))
 806                         break;
 807
 808                 p->flags |= TERMP_NOBREAK | TERMP_HANG;
 809                 p->trailspace = 1;
 810                 break;
 811         case (LIST_tag):
 812                 if (MDOC_HEAD != n->type)
 813                         break;
 814
 815                 p->flags |= TERMP_NOBREAK;
 816                 p->trailspace = 2;
 817
 818                 if (NULL == n->next || NULL == n->next->child)
 819                         p->flags |= TERMP_DANGLE;
 820                 break;
 821         case (LIST_column):
 822                 if (MDOC_HEAD == n->type)
 823                         break;
 824
 825                 if (NULL == n->next) {
 826                         p->flags &= ~TERMP_NOBREAK;
 827                         p->trailspace = 0;
 828                 } else {
 829                         p->flags |= TERMP_NOBREAK;
 830                         p->trailspace = 1;
 831                 }
 832
 833                 break;
 834         case (LIST_diag):
 835                 if (MDOC_HEAD != n->type)
 836                         break;
 837                 p->flags |= TERMP_NOBREAK;
 838                 p->trailspace = 1;
 839                 break;
 840         default:
 841                 break;
 842         }
 843
 844         /*
 845          * Margin control.  Set-head-width lists have their right
 846          * margins shortened.  The body for these lists has the offset
 847          * necessarily lengthened.  Everybody gets the offset.
 848          */
 849
 850         p->offset += offset;
 851
 852         switch (type) {
 853         case (LIST_hang):
 854                 /*
 855                  * Same stipulation as above, regarding `-hang'.  We
 856                  * don't want to recalculate rmargin and offsets when
 857                  * using `Bd' or `Bl' within `-hang' overstep lists.
 858                  */
 859                 if (MDOC_HEAD == n->type && n->next->child &&
 860                                 (MDOC_Bl == n->next->child->tok ||
 861                                  MDOC_Bd == n->next->child->tok))
 862                         break;
 863                 /* FALLTHROUGH */
 864         case (LIST_bullet):
 865                 /* FALLTHROUGH */
 866         case (LIST_dash):
 867                 /* FALLTHROUGH */
 868         case (LIST_enum):
 869                 /* FALLTHROUGH */
 870         case (LIST_hyphen):
 871                 /* FALLTHROUGH */
 872         case (LIST_tag):
 873                 assert(width);
 874                 if (MDOC_HEAD == n->type)
 875                         p->rmargin = p->offset + width;
 876                 else
 877                         p->offset += width;
 878                 break;
 879         case (LIST_column):
 880                 assert(width);
 881                 p->rmargin = p->offset + width;
 882                 /*
 883                  * XXX - this behaviour is not documented: the
 884                  * right-most column is filled to the right margin.
 885                  */
 886                 if (MDOC_HEAD == n->type)
 887                         break;
 888                 if (NULL == n->next && p->rmargin < p->maxrmargin)
 889                         p->rmargin = p->maxrmargin;
 890                 break;
 891         default:
 892                 break;
 893         }
 894
 895         /*
 896          * The dash, hyphen, bullet and enum lists all have a special
 897          * HEAD character (temporarily bold, in some cases).
 898          */
 899
 900         if (MDOC_HEAD == n->type)
 901                 switch (type) {
 902                 case (LIST_bullet):
 903                         term_fontpush(p, TERMFONT_BOLD);
 904                         term_word(p, "\\[bu]");
 905                         term_fontpop(p);
 906                         break;
 907                 case (LIST_dash):
 908                         /* FALLTHROUGH */
 909                 case (LIST_hyphen):
 910                         term_fontpush(p, TERMFONT_BOLD);
 911                         term_word(p, "\\(hy");
 912                         term_fontpop(p);
 913                         break;
 914                 case (LIST_enum):
 915                         (pair->ppair->ppair->count)++;
 916                         snprintf(buf, sizeof(buf), "%d.",
 917                                         pair->ppair->ppair->count);
 918                         term_word(p, buf);
 919                         break;
 920                 default:
 921                         break;
 922                 }
 923
 924         /*
 925          * If we're not going to process our children, indicate so here.
 926          */
 927
 928         switch (type) {
 929         case (LIST_bullet):
 930                 /* FALLTHROUGH */
 931         case (LIST_item):
 932                 /* FALLTHROUGH */
 933         case (LIST_dash):
 934                 /* FALLTHROUGH */
 935         case (LIST_hyphen):
 936                 /* FALLTHROUGH */
 937         case (LIST_enum):
 938                 if (MDOC_HEAD == n->type)
 939                         return(0);
 940                 break;
 941         case (LIST_column):
 942                 if (MDOC_HEAD == n->type)
 943                         return(0);
 944                 break;
 945         default:
 946                 break;
 947         }
 948
 949         return(1);
 950 }
 951
 952
 953 /* ARGSUSED */
 954 static void
 955 termp_it_post(DECL_ARGS)
 956 {
 957         enum mdoc_list     type;
 958
 959         if (MDOC_BLOCK == n->type)
 960                 return;
 961
 962         type = n->parent->parent->parent->norm->Bl.type;
 963
 964         switch (type) {
 965         case (LIST_item):
 966                 /* FALLTHROUGH */
 967         case (LIST_diag):
 968                 /* FALLTHROUGH */
 969         case (LIST_inset):
 970                 if (MDOC_BODY == n->type)
 971                         term_newln(p);
 972                 break;
 973         case (LIST_column):
 974                 if (MDOC_BODY == n->type)
 975                         term_flushln(p);
 976                 break;
 977         default:
 978                 term_newln(p);
 979                 break;
 980         }
 981
 982         /*
 983          * Now that our output is flushed, we can reset our tags.  Since
 984          * only `It' sets these flags, we're free to assume that nobody
 985          * has munged them in the meanwhile.
 986          */
 987
 988         p->flags &= ~TERMP_DANGLE;
 989         p->flags &= ~TERMP_NOBREAK;
 990         p->flags &= ~TERMP_HANG;
 991         p->trailspace = 0;
 992 }
 993
 994
 995 /* ARGSUSED */
 996 static int
 997 termp_nm_pre(DECL_ARGS)
 998 {
 999
1000         if (MDOC_BLOCK == n->type) {
1001                 p->flags |= TERMP_PREKEEP;
1002                 return(1);
1003         }
1004
1005         if (MDOC_BODY == n->type) {
1006                 if (NULL == n->child)
1007                         return(0);
1008                 p->flags |= TERMP_NOSPACE;
1009                 p->offset += term_len(p, 1) +
1010                     (NULL == n->prev->child ?
1011                      term_strlen(p, meta->name) :
1012                      MDOC_TEXT == n->prev->child->type ?
1013                      term_strlen(p, n->prev->child->string) :
1014                      term_len(p, 5));
1015                 return(1);
1016         }
1017
1018         if (NULL == n->child && NULL == meta->name)
1019                 return(0);
1020
1021         if (MDOC_HEAD == n->type)
1022                 synopsis_pre(p, n->parent);
1023
1024         if (MDOC_HEAD == n->type && n->next->child) {
1025                 p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1026                 p->trailspace = 1;
1027                 p->rmargin = p->offset + term_len(p, 1);
1028                 if (NULL == n->child) {
1029                         p->rmargin += term_strlen(p, meta->name);
1030                 } else if (MDOC_TEXT == n->child->type) {
1031                         p->rmargin += term_strlen(p, n->child->string);
1032                         if (n->child->next)
1033                                 p->flags |= TERMP_HANG;
1034                 } else {
1035                         p->rmargin += term_len(p, 5);
1036                         p->flags |= TERMP_HANG;
1037                 }
1038         }
1039
1040         term_fontpush(p, TERMFONT_BOLD);
1041         if (NULL == n->child)
1042                 term_word(p, meta->name);
1043         return(1);
1044 }
1045
1046
1047 /* ARGSUSED */
1048 static void
1049 termp_nm_post(DECL_ARGS)
1050 {
1051
1052         if (MDOC_BLOCK == n->type) {
1053                 p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1054         } else if (MDOC_HEAD == n->type && n->next->child) {
1055                 term_flushln(p);
1056                 p->flags &= ~(TERMP_NOBREAK | TERMP_HANG);
1057                 p->trailspace = 0;
1058         } else if (MDOC_BODY == n->type && n->child)
1059                 term_flushln(p);
1060 }
1061
1062
1063 /* ARGSUSED */
1064 static int
1065 termp_fl_pre(DECL_ARGS)
1066 {
1067
1068         term_fontpush(p, TERMFONT_BOLD);
1069         term_word(p, "\\-");
1070
1071         if (n->child)
1072                 p->flags |= TERMP_NOSPACE;
1073         else if (n->next && n->next->line == n->line)
1074                 p->flags |= TERMP_NOSPACE;
1075
1076         return(1);
1077 }
1078
1079
1080 /* ARGSUSED */
1081 static int
1082 termp__a_pre(DECL_ARGS)
1083 {
1084
1085         if (n->prev && MDOC__A == n->prev->tok)
1086                 if (NULL == n->next || MDOC__A != n->next->tok)
1087                         term_word(p, "and");
1088
1089         return(1);
1090 }
1091
1092
1093 /* ARGSUSED */
1094 static int
1095 termp_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          */
1109
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
1128
1129 /* ARGSUSED */
1130 static void
1131 termp_an_post(DECL_ARGS)
1132 {
1133
1134         if (n->child) {
1135                 if (SEC_AUTHORS == n->sec)
1136                         p->flags |= TERMP_ANPREC;
1137                 return;
1138         }
1139
1140         if (AUTH_split == n->norm->An.auth) {
1141                 p->flags &= ~TERMP_NOSPLIT;
1142                 p->flags |= TERMP_SPLIT;
1143         } else if (AUTH_nosplit == n->norm->An.auth) {
1144                 p->flags &= ~TERMP_SPLIT;
1145                 p->flags |= TERMP_NOSPLIT;
1146         }
1147
1148 }
1149
1150
1151 /* ARGSUSED */
1152 static int
1153 termp_ns_pre(DECL_ARGS)
1154 {
1155
1156         if ( ! (MDOC_LINE & n->flags))
1157                 p->flags |= TERMP_NOSPACE;
1158         return(1);
1159 }
1160
1161
1162 /* ARGSUSED */
1163 static int
1164 termp_rs_pre(DECL_ARGS)
1165 {
1166
1167         if (SEC_SEE_ALSO != n->sec)
1168                 return(1);
1169         if (MDOC_BLOCK == n->type && n->prev)
1170                 term_vspace(p);
1171         return(1);
1172 }
1173
1174
1175 /* ARGSUSED */
1176 static int
1177 termp_rv_pre(DECL_ARGS)
1178 {
1179         int              nchild;
1180
1181         term_newln(p);
1182         term_word(p, "The");
1183
1184         nchild = n->nchild;
1185         for (n = n->child; n; n = n->next) {
1186                 term_fontpush(p, TERMFONT_BOLD);
1187                 term_word(p, n->string);
1188                 term_fontpop(p);
1189
1190                 p->flags |= TERMP_NOSPACE;
1191                 term_word(p, "()");
1192
1193                 if (nchild > 2 && n->next) {
1194                         p->flags |= TERMP_NOSPACE;
1195                         term_word(p, ",");
1196                 }
1197
1198                 if (n->next && NULL == n->next->next)
1199                         term_word(p, "and");
1200         }
1201
1202         if (nchild > 1)
1203                 term_word(p, "functions return");
1204         else
1205                 term_word(p, "function returns");
1206
1207         term_word(p, "the value 0 if successful; otherwise the value "
1208                         "-1 is returned and the global variable");
1209
1210         term_fontpush(p, TERMFONT_UNDER);
1211         term_word(p, "errno");
1212         term_fontpop(p);
1213
1214         term_word(p, "is set to indicate the error.");
1215         p->flags |= TERMP_SENTENCE;
1216
1217         return(0);
1218 }
1219
1220
1221 /* ARGSUSED */
1222 static int
1223 termp_ex_pre(DECL_ARGS)
1224 {
1225         int              nchild;
1226
1227         term_newln(p);
1228         term_word(p, "The");
1229
1230         nchild = n->nchild;
1231         for (n = n->child; n; n = n->next) {
1232                 term_fontpush(p, TERMFONT_BOLD);
1233                 term_word(p, n->string);
1234                 term_fontpop(p);
1235
1236                 if (nchild > 2 && n->next) {
1237                         p->flags |= TERMP_NOSPACE;
1238                         term_word(p, ",");
1239                 }
1240
1241                 if (n->next && NULL == n->next->next)
1242                         term_word(p, "and");
1243         }
1244
1245         if (nchild > 1)
1246                 term_word(p, "utilities exit");
1247         else
1248                 term_word(p, "utility exits");
1249
1250         term_word(p, "0 on success, and >0 if an error occurs.");
1251
1252         p->flags |= TERMP_SENTENCE;
1253         return(0);
1254 }
1255
1256
1257 /* ARGSUSED */
1258 static int
1259 termp_nd_pre(DECL_ARGS)
1260 {
1261
1262         if (MDOC_BODY != n->type)
1263                 return(1);
1264
1265 #if defined(__OpenBSD__) || defined(__linux__)
1266         term_word(p, "\\(en");
1267 #else
1268         term_word(p, "\\(em");
1269 #endif
1270         return(1);
1271 }
1272
1273
1274 /* ARGSUSED */
1275 static int
1276 termp_bl_pre(DECL_ARGS)
1277 {
1278
1279         return(MDOC_HEAD != n->type);
1280 }
1281
1282
1283 /* ARGSUSED */
1284 static void
1285 termp_bl_post(DECL_ARGS)
1286 {
1287
1288         if (MDOC_BLOCK == n->type)
1289                 term_newln(p);
1290 }
1291
1292 /* ARGSUSED */
1293 static int
1294 termp_xr_pre(DECL_ARGS)
1295 {
1296
1297         if (NULL == (n = n->child))
1298                 return(0);
1299
1300         assert(MDOC_TEXT == n->type);
1301         term_word(p, n->string);
1302
1303         if (NULL == (n = n->next))
1304                 return(0);
1305
1306         p->flags |= TERMP_NOSPACE;
1307         term_word(p, "(");
1308         p->flags |= TERMP_NOSPACE;
1309
1310         assert(MDOC_TEXT == n->type);
1311         term_word(p, n->string);
1312
1313         p->flags |= TERMP_NOSPACE;
1314         term_word(p, ")");
1315
1316         return(0);
1317 }
1318
1319 /*
1320  * This decides how to assert whitespace before any of the SYNOPSIS set
1321  * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
1322  * macro combos).
1323  */
1324 static void
1325 synopsis_pre(struct termp *p, const struct mdoc_node *n)
1326 {
1327         /*
1328          * Obviously, if we're not in a SYNOPSIS or no prior macros
1329          * exist, do nothing.
1330          */
1331         if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
1332                 return;
1333
1334         /*
1335          * If we're the second in a pair of like elements, emit our
1336          * newline and return.  UNLESS we're `Fo', `Fn', `Fn', in which
1337          * case we soldier on.
1338          */
1339         if (n->prev->tok == n->tok &&
1340                         MDOC_Ft != n->tok &&
1341                         MDOC_Fo != n->tok &&
1342                         MDOC_Fn != n->tok) {
1343                 term_newln(p);
1344                 return;
1345         }
1346
1347         /*
1348          * If we're one of the SYNOPSIS set and non-like pair-wise after
1349          * another (or Fn/Fo, which we've let slip through) then assert
1350          * vertical space, else only newline and move on.
1351          */
1352         switch (n->prev->tok) {
1353         case (MDOC_Fd):
1354                 /* FALLTHROUGH */
1355         case (MDOC_Fn):
1356                 /* FALLTHROUGH */
1357         case (MDOC_Fo):
1358                 /* FALLTHROUGH */
1359         case (MDOC_In):
1360                 /* FALLTHROUGH */
1361         case (MDOC_Vt):
1362                 term_vspace(p);
1363                 break;
1364         case (MDOC_Ft):
1365                 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
1366                         term_vspace(p);
1367                         break;
1368                 }
1369                 /* FALLTHROUGH */
1370         default:
1371                 term_newln(p);
1372                 break;
1373         }
1374 }
1375
1376
1377 static int
1378 termp_vt_pre(DECL_ARGS)
1379 {
1380
1381         if (MDOC_ELEM == n->type) {
1382                 synopsis_pre(p, n);
1383                 return(termp_under_pre(p, pair, meta, n));
1384         } else if (MDOC_BLOCK == n->type) {
1385                 synopsis_pre(p, n);
1386                 return(1);
1387         } else if (MDOC_HEAD == n->type)
1388                 return(0);
1389
1390         return(termp_under_pre(p, pair, meta, n));
1391 }
1392
1393
1394 /* ARGSUSED */
1395 static int
1396 termp_bold_pre(DECL_ARGS)
1397 {
1398
1399         term_fontpush(p, TERMFONT_BOLD);
1400         return(1);
1401 }
1402
1403
1404 /* ARGSUSED */
1405 static int
1406 termp_fd_pre(DECL_ARGS)
1407 {
1408
1409         synopsis_pre(p, n);
1410         return(termp_bold_pre(p, pair, meta, n));
1411 }
1412
1413
1414 /* ARGSUSED */
1415 static void
1416 termp_fd_post(DECL_ARGS)
1417 {
1418
1419         term_newln(p);
1420 }
1421
1422
1423 /* ARGSUSED */
1424 static int
1425 termp_sh_pre(DECL_ARGS)
1426 {
1427
1428         /* No vspace between consecutive `Sh' calls. */
1429
1430         switch (n->type) {
1431         case (MDOC_BLOCK):
1432                 if (n->prev && MDOC_Sh == n->prev->tok)
1433                         if (NULL == n->prev->body->child)
1434                                 break;
1435                 term_vspace(p);
1436                 break;
1437         case (MDOC_HEAD):
1438                 term_fontpush(p, TERMFONT_BOLD);
1439                 break;
1440         case (MDOC_BODY):
1441                 p->offset = term_len(p, p->defindent);
1442                 if (SEC_AUTHORS == n->sec)
1443                         p->flags &= ~(TERMP_SPLIT|TERMP_NOSPLIT);
1444                 break;
1445         default:
1446                 break;
1447         }
1448         return(1);
1449 }
1450
1451
1452 /* ARGSUSED */
1453 static void
1454 termp_sh_post(DECL_ARGS)
1455 {
1456
1457         switch (n->type) {
1458         case (MDOC_HEAD):
1459                 term_newln(p);
1460                 break;
1461         case (MDOC_BODY):
1462                 term_newln(p);
1463                 p->offset = 0;
1464                 break;
1465         default:
1466                 break;
1467         }
1468 }
1469
1470
1471 /* ARGSUSED */
1472 static int
1473 termp_bt_pre(DECL_ARGS)
1474 {
1475
1476         term_word(p, "is currently in beta test.");
1477         p->flags |= TERMP_SENTENCE;
1478         return(0);
1479 }
1480
1481
1482 /* ARGSUSED */
1483 static void
1484 termp_lb_post(DECL_ARGS)
1485 {
1486
1487         if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
1488                 term_newln(p);
1489 }
1490
1491
1492 /* ARGSUSED */
1493 static int
1494 termp_ud_pre(DECL_ARGS)
1495 {
1496
1497         term_word(p, "currently under development.");
1498         p->flags |= TERMP_SENTENCE;
1499         return(0);
1500 }
1501
1502
1503 /* ARGSUSED */
1504 static int
1505 termp_d1_pre(DECL_ARGS)
1506 {
1507
1508         if (MDOC_BLOCK != n->type)
1509                 return(1);
1510         term_newln(p);
1511         p->offset += term_len(p, p->defindent + 1);
1512         return(1);
1513 }
1514
1515
1516 /* ARGSUSED */
1517 static int
1518 termp_ft_pre(DECL_ARGS)
1519 {
1520
1521         /* NB: MDOC_LINE does not effect this! */
1522         synopsis_pre(p, n);
1523         term_fontpush(p, TERMFONT_UNDER);
1524         return(1);
1525 }
1526
1527
1528 /* ARGSUSED */
1529 static int
1530 termp_fn_pre(DECL_ARGS)
1531 {
1532         size_t           rmargin = 0;
1533         int              pretty;
1534
1535         pretty = MDOC_SYNPRETTY & n->flags;
1536
1537         synopsis_pre(p, n);
1538
1539         if (NULL == (n = n->child))
1540                 return(0);
1541
1542         if (pretty) {
1543                 rmargin = p->rmargin;
1544                 p->rmargin = p->offset + term_len(p, 4);
1545                 p->flags |= TERMP_NOBREAK | TERMP_HANG;
1546         }
1547
1548         assert(MDOC_TEXT == n->type);
1549         term_fontpush(p, TERMFONT_BOLD);
1550         term_word(p, n->string);
1551         term_fontpop(p);
1552
1553         if (pretty) {
1554                 term_flushln(p);
1555                 p->flags &= ~(TERMP_NOBREAK | TERMP_HANG);
1556                 p->offset = p->rmargin;
1557                 p->rmargin = rmargin;
1558         }
1559
1560         p->flags |= TERMP_NOSPACE;
1561         term_word(p, "(");
1562         p->flags |= TERMP_NOSPACE;
1563
1564         for (n = n->next; n; n = n->next) {
1565                 assert(MDOC_TEXT == n->type);
1566                 term_fontpush(p, TERMFONT_UNDER);
1567                 if (pretty)
1568                         p->flags |= TERMP_NBRWORD;
1569                 term_word(p, n->string);
1570                 term_fontpop(p);
1571
1572                 if (n->next) {
1573                         p->flags |= TERMP_NOSPACE;
1574                         term_word(p, ",");
1575                 }
1576         }
1577
1578         p->flags |= TERMP_NOSPACE;
1579         term_word(p, ")");
1580
1581         if (pretty) {
1582                 p->flags |= TERMP_NOSPACE;
1583                 term_word(p, ";");
1584                 term_flushln(p);
1585         }
1586
1587         return(0);
1588 }
1589
1590
1591 /* ARGSUSED */
1592 static int
1593 termp_fa_pre(DECL_ARGS)
1594 {
1595         const struct mdoc_node  *nn;
1596
1597         if (n->parent->tok != MDOC_Fo) {
1598                 term_fontpush(p, TERMFONT_UNDER);
1599                 return(1);
1600         }
1601
1602         for (nn = n->child; nn; nn = nn->next) {
1603                 term_fontpush(p, TERMFONT_UNDER);
1604                 p->flags |= TERMP_NBRWORD;
1605                 term_word(p, nn->string);
1606                 term_fontpop(p);
1607
1608                 if (nn->next || (n->next && n->next->tok == MDOC_Fa)) {
1609                         p->flags |= TERMP_NOSPACE;
1610                         term_word(p, ",");
1611                 }
1612         }
1613
1614         return(0);
1615 }
1616
1617
1618 /* ARGSUSED */
1619 static int
1620 termp_bd_pre(DECL_ARGS)
1621 {
1622         size_t                   tabwidth, rm, rmax;
1623         struct mdoc_node        *nn;
1624
1625         if (MDOC_BLOCK == n->type) {
1626                 print_bvspace(p, n, n);
1627                 return(1);
1628         } else if (MDOC_HEAD == n->type)
1629                 return(0);
1630
1631         if (n->norm->Bd.offs)
1632                 p->offset += a2offs(p, n->norm->Bd.offs);
1633
1634         /*
1635          * If -ragged or -filled are specified, the block does nothing
1636          * but change the indentation.  If -unfilled or -literal are
1637          * specified, text is printed exactly as entered in the display:
1638          * for macro lines, a newline is appended to the line.  Blank
1639          * lines are allowed.
1640          */
1641
1642         if (DISP_literal != n->norm->Bd.type &&
1643                         DISP_unfilled != n->norm->Bd.type)
1644                 return(1);
1645
1646         tabwidth = p->tabwidth;
1647         if (DISP_literal == n->norm->Bd.type)
1648                 p->tabwidth = term_len(p, 8);
1649
1650         rm = p->rmargin;
1651         rmax = p->maxrmargin;
1652         p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1653
1654         for (nn = n->child; nn; nn = nn->next) {
1655                 print_mdoc_node(p, pair, meta, nn);
1656                 /*
1657                  * If the printed node flushes its own line, then we
1658                  * needn't do it here as well.  This is hacky, but the
1659                  * notion of selective eoln whitespace is pretty dumb
1660                  * anyway, so don't sweat it.
1661                  */
1662                 switch (nn->tok) {
1663                 case (MDOC_Sm):
1664                         /* FALLTHROUGH */
1665                 case (MDOC_br):
1666                         /* FALLTHROUGH */
1667                 case (MDOC_sp):
1668                         /* FALLTHROUGH */
1669                 case (MDOC_Bl):
1670                         /* FALLTHROUGH */
1671                 case (MDOC_D1):
1672                         /* FALLTHROUGH */
1673                 case (MDOC_Dl):
1674                         /* FALLTHROUGH */
1675                 case (MDOC_Lp):
1676                         /* FALLTHROUGH */
1677                 case (MDOC_Pp):
1678                         continue;
1679                 default:
1680                         break;
1681                 }
1682                 if (nn->next && nn->next->line == nn->line)
1683                         continue;
1684                 term_flushln(p);
1685                 p->flags |= TERMP_NOSPACE;
1686         }
1687
1688         p->tabwidth = tabwidth;
1689         p->rmargin = rm;
1690         p->maxrmargin = rmax;
1691         return(0);
1692 }
1693
1694
1695 /* ARGSUSED */
1696 static void
1697 termp_bd_post(DECL_ARGS)
1698 {
1699         size_t           rm, rmax;
1700
1701         if (MDOC_BODY != n->type)
1702                 return;
1703
1704         rm = p->rmargin;
1705         rmax = p->maxrmargin;
1706
1707         if (DISP_literal == n->norm->Bd.type ||
1708                         DISP_unfilled == n->norm->Bd.type)
1709                 p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1710
1711         p->flags |= TERMP_NOSPACE;
1712         term_newln(p);
1713
1714         p->rmargin = rm;
1715         p->maxrmargin = rmax;
1716 }
1717
1718
1719 /* ARGSUSED */
1720 static int
1721 termp_bx_pre(DECL_ARGS)
1722 {
1723
1724         if (NULL != (n = n->child)) {
1725                 term_word(p, n->string);
1726                 p->flags |= TERMP_NOSPACE;
1727                 term_word(p, "BSD");
1728         } else {
1729                 term_word(p, "BSD");
1730                 return(0);
1731         }
1732
1733         if (NULL != (n = n->next)) {
1734                 p->flags |= TERMP_NOSPACE;
1735                 term_word(p, "-");
1736                 p->flags |= TERMP_NOSPACE;
1737                 term_word(p, n->string);
1738         }
1739
1740         return(0);
1741 }
1742
1743
1744 /* ARGSUSED */
1745 static int
1746 termp_xx_pre(DECL_ARGS)
1747 {
1748         const char      *pp;
1749         int              flags;
1750
1751         pp = NULL;
1752         switch (n->tok) {
1753         case (MDOC_Bsx):
1754                 pp = "BSD/OS";
1755                 break;
1756         case (MDOC_Dx):
1757                 pp = "DragonFly";
1758                 break;
1759         case (MDOC_Fx):
1760                 pp = "FreeBSD";
1761                 break;
1762         case (MDOC_Nx):
1763                 pp = "NetBSD";
1764                 break;
1765         case (MDOC_Ox):
1766                 pp = "OpenBSD";
1767                 break;
1768         case (MDOC_Ux):
1769                 pp = "UNIX";
1770                 break;
1771         default:
1772                 abort();
1773                 /* NOTREACHED */
1774         }
1775
1776         term_word(p, pp);
1777         if (n->child) {
1778                 flags = p->flags;
1779                 p->flags |= TERMP_KEEP;
1780                 term_word(p, n->child->string);
1781                 p->flags = flags;
1782         }
1783         return(0);
1784 }
1785
1786
1787 /* ARGSUSED */
1788 static void
1789 termp_pf_post(DECL_ARGS)
1790 {
1791
1792         p->flags |= TERMP_NOSPACE;
1793 }
1794
1795
1796 /* ARGSUSED */
1797 static int
1798 termp_ss_pre(DECL_ARGS)
1799 {
1800
1801         switch (n->type) {
1802         case (MDOC_BLOCK):
1803                 term_newln(p);
1804                 if (n->prev)
1805                         term_vspace(p);
1806                 break;
1807         case (MDOC_HEAD):
1808                 term_fontpush(p, TERMFONT_BOLD);
1809                 p->offset = term_len(p, (p->defindent+1)/2);
1810                 break;
1811         default:
1812                 break;
1813         }
1814
1815         return(1);
1816 }
1817
1818
1819 /* ARGSUSED */
1820 static void
1821 termp_ss_post(DECL_ARGS)
1822 {
1823
1824         if (MDOC_HEAD == n->type)
1825                 term_newln(p);
1826 }
1827
1828
1829 /* ARGSUSED */
1830 static int
1831 termp_cd_pre(DECL_ARGS)
1832 {
1833
1834         synopsis_pre(p, n);
1835         term_fontpush(p, TERMFONT_BOLD);
1836         return(1);
1837 }
1838
1839
1840 /* ARGSUSED */
1841 static int
1842 termp_in_pre(DECL_ARGS)
1843 {
1844
1845         synopsis_pre(p, n);
1846
1847         if (MDOC_SYNPRETTY & n->flags && MDOC_LINE & n->flags) {
1848                 term_fontpush(p, TERMFONT_BOLD);
1849                 term_word(p, "#include");
1850                 term_word(p, "<");
1851         } else {
1852                 term_word(p, "<");
1853                 term_fontpush(p, TERMFONT_UNDER);
1854         }
1855
1856         p->flags |= TERMP_NOSPACE;
1857         return(1);
1858 }
1859
1860
1861 /* ARGSUSED */
1862 static void
1863 termp_in_post(DECL_ARGS)
1864 {
1865
1866         if (MDOC_SYNPRETTY & n->flags)
1867                 term_fontpush(p, TERMFONT_BOLD);
1868
1869         p->flags |= TERMP_NOSPACE;
1870         term_word(p, ">");
1871
1872         if (MDOC_SYNPRETTY & n->flags)
1873                 term_fontpop(p);
1874 }
1875
1876
1877 /* ARGSUSED */
1878 static int
1879 termp_sp_pre(DECL_ARGS)
1880 {
1881         size_t           i, len;
1882
1883         switch (n->tok) {
1884         case (MDOC_sp):
1885                 len = n->child ? a2height(p, n->child->string) : 1;
1886                 break;
1887         case (MDOC_br):
1888                 len = 0;
1889                 break;
1890         default:
1891                 len = 1;
1892                 break;
1893         }
1894
1895         if (0 == len)
1896                 term_newln(p);
1897         for (i = 0; i < len; i++)
1898                 term_vspace(p);
1899
1900         return(0);
1901 }
1902
1903
1904 /* ARGSUSED */
1905 static int
1906 termp_quote_pre(DECL_ARGS)
1907 {
1908
1909         if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1910                 return(1);
1911
1912         switch (n->tok) {
1913         case (MDOC_Ao):
1914                 /* FALLTHROUGH */
1915         case (MDOC_Aq):
1916                 term_word(p, "<");
1917                 break;
1918         case (MDOC_Bro):
1919                 /* FALLTHROUGH */
1920         case (MDOC_Brq):
1921                 term_word(p, "{");
1922                 break;
1923         case (MDOC_Oo):
1924                 /* FALLTHROUGH */
1925         case (MDOC_Op):
1926                 /* FALLTHROUGH */
1927         case (MDOC_Bo):
1928                 /* FALLTHROUGH */
1929         case (MDOC_Bq):
1930                 term_word(p, "[");
1931                 break;
1932         case (MDOC_Do):
1933                 /* FALLTHROUGH */
1934         case (MDOC_Dq):
1935                 term_word(p, "\\(lq");
1936                 break;
1937         case (MDOC_Eo):
1938                 break;
1939         case (MDOC_Po):
1940                 /* FALLTHROUGH */
1941         case (MDOC_Pq):
1942                 term_word(p, "(");
1943                 break;
1944         case (MDOC__T):
1945                 /* FALLTHROUGH */
1946         case (MDOC_Qo):
1947                 /* FALLTHROUGH */
1948         case (MDOC_Qq):
1949                 term_word(p, "\"");
1950                 break;
1951         case (MDOC_Ql):
1952                 /* FALLTHROUGH */
1953         case (MDOC_So):
1954                 /* FALLTHROUGH */
1955         case (MDOC_Sq):
1956                 term_word(p, "\\(oq");
1957                 break;
1958         default:
1959                 abort();
1960                 /* NOTREACHED */
1961         }
1962
1963         p->flags |= TERMP_NOSPACE;
1964         return(1);
1965 }
1966
1967
1968 /* ARGSUSED */
1969 static void
1970 termp_quote_post(DECL_ARGS)
1971 {
1972
1973         if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1974                 return;
1975
1976         p->flags |= TERMP_NOSPACE;
1977
1978         switch (n->tok) {
1979         case (MDOC_Ao):
1980                 /* FALLTHROUGH */
1981         case (MDOC_Aq):
1982                 term_word(p, ">");
1983                 break;
1984         case (MDOC_Bro):
1985                 /* FALLTHROUGH */
1986         case (MDOC_Brq):
1987                 term_word(p, "}");
1988                 break;
1989         case (MDOC_Oo):
1990                 /* FALLTHROUGH */
1991         case (MDOC_Op):
1992                 /* FALLTHROUGH */
1993         case (MDOC_Bo):
1994                 /* FALLTHROUGH */
1995         case (MDOC_Bq):
1996                 term_word(p, "]");
1997                 break;
1998         case (MDOC_Do):
1999                 /* FALLTHROUGH */
2000         case (MDOC_Dq):
2001                 term_word(p, "\\(rq");
2002                 break;
2003         case (MDOC_Eo):
2004                 break;
2005         case (MDOC_Po):
2006                 /* FALLTHROUGH */
2007         case (MDOC_Pq):
2008                 term_word(p, ")");
2009                 break;
2010         case (MDOC__T):
2011                 /* FALLTHROUGH */
2012         case (MDOC_Qo):
2013                 /* FALLTHROUGH */
2014         case (MDOC_Qq):
2015                 term_word(p, "\"");
2016                 break;
2017         case (MDOC_Ql):
2018                 /* FALLTHROUGH */
2019         case (MDOC_So):
2020                 /* FALLTHROUGH */
2021         case (MDOC_Sq):
2022                 term_word(p, "\\(cq");
2023                 break;
2024         default:
2025                 abort();
2026                 /* NOTREACHED */
2027         }
2028 }
2029
2030
2031 /* ARGSUSED */
2032 static int
2033 termp_fo_pre(DECL_ARGS)
2034 {
2035         size_t           rmargin = 0;
2036         int              pretty;
2037
2038         pretty = MDOC_SYNPRETTY & n->flags;
2039
2040         if (MDOC_BLOCK == n->type) {
2041                 synopsis_pre(p, n);
2042                 return(1);
2043         } else if (MDOC_BODY == n->type) {
2044                 if (pretty) {
2045                         rmargin = p->rmargin;
2046                         p->rmargin = p->offset + term_len(p, 4);
2047                         p->flags |= TERMP_NOBREAK | TERMP_HANG;
2048                 }
2049                 p->flags |= TERMP_NOSPACE;
2050                 term_word(p, "(");
2051                 p->flags |= TERMP_NOSPACE;
2052                 if (pretty) {
2053                         term_flushln(p);
2054                         p->flags &= ~(TERMP_NOBREAK | TERMP_HANG);
2055                         p->offset = p->rmargin;
2056                         p->rmargin = rmargin;
2057                 }
2058                 return(1);
2059         }
2060
2061         if (NULL == n->child)
2062                 return(0);
2063
2064         /* XXX: we drop non-initial arguments as per groff. */
2065
2066         assert(n->child->string);
2067         term_fontpush(p, TERMFONT_BOLD);
2068         term_word(p, n->child->string);
2069         return(0);
2070 }
2071
2072
2073 /* ARGSUSED */
2074 static void
2075 termp_fo_post(DECL_ARGS)
2076 {
2077
2078         if (MDOC_BODY != n->type)
2079                 return;
2080
2081         p->flags |= TERMP_NOSPACE;
2082         term_word(p, ")");
2083
2084         if (MDOC_SYNPRETTY & n->flags) {
2085                 p->flags |= TERMP_NOSPACE;
2086                 term_word(p, ";");
2087                 term_flushln(p);
2088         }
2089 }
2090
2091
2092 /* ARGSUSED */
2093 static int
2094 termp_bf_pre(DECL_ARGS)
2095 {
2096
2097         if (MDOC_HEAD == n->type)
2098                 return(0);
2099         else if (MDOC_BODY != n->type)
2100                 return(1);
2101
2102         if (FONT_Em == n->norm->Bf.font)
2103                 term_fontpush(p, TERMFONT_UNDER);
2104         else if (FONT_Sy == n->norm->Bf.font)
2105                 term_fontpush(p, TERMFONT_BOLD);
2106         else
2107                 term_fontpush(p, TERMFONT_NONE);
2108
2109         return(1);
2110 }
2111
2112
2113 /* ARGSUSED */
2114 static int
2115 termp_sm_pre(DECL_ARGS)
2116 {
2117
2118         assert(n->child && MDOC_TEXT == n->child->type);
2119         if (0 == strcmp("on", n->child->string)) {
2120                 if (p->col)
2121                         p->flags &= ~TERMP_NOSPACE;
2122                 p->flags &= ~TERMP_NONOSPACE;
2123         } else
2124                 p->flags |= TERMP_NONOSPACE;
2125
2126         return(0);
2127 }
2128
2129
2130 /* ARGSUSED */
2131 static int
2132 termp_ap_pre(DECL_ARGS)
2133 {
2134
2135         p->flags |= TERMP_NOSPACE;
2136         term_word(p, "'");
2137         p->flags |= TERMP_NOSPACE;
2138         return(1);
2139 }
2140
2141
2142 /* ARGSUSED */
2143 static void
2144 termp____post(DECL_ARGS)
2145 {
2146
2147         /*
2148          * Handle lists of authors.  In general, print each followed by
2149          * a comma.  Don't print the comma if there are only two
2150          * authors.
2151          */
2152         if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
2153                 if (NULL == n->next->next || MDOC__A != n->next->next->tok)
2154                         if (NULL == n->prev || MDOC__A != n->prev->tok)
2155                                 return;
2156
2157         /* TODO: %U. */
2158
2159         if (NULL == n->parent || MDOC_Rs != n->parent->tok)
2160                 return;
2161
2162         p->flags |= TERMP_NOSPACE;
2163         if (NULL == n->next) {
2164                 term_word(p, ".");
2165                 p->flags |= TERMP_SENTENCE;
2166         } else
2167                 term_word(p, ",");
2168 }
2169
2170
2171 /* ARGSUSED */
2172 static int
2173 termp_li_pre(DECL_ARGS)
2174 {
2175
2176         term_fontpush(p, TERMFONT_NONE);
2177         return(1);
2178 }
2179
2180
2181 /* ARGSUSED */
2182 static int
2183 termp_lk_pre(DECL_ARGS)
2184 {
2185         const struct mdoc_node *link, *descr;
2186
2187         if (NULL == (link = n->child))
2188                 return(0);
2189
2190         if (NULL != (descr = link->next)) {
2191                 term_fontpush(p, TERMFONT_UNDER);
2192                 while (NULL != descr) {
2193                         term_word(p, descr->string);
2194                         descr = descr->next;
2195                 }
2196                 p->flags |= TERMP_NOSPACE;
2197                 term_word(p, ":");
2198                 term_fontpop(p);
2199         }
2200
2201         term_fontpush(p, TERMFONT_BOLD);
2202         term_word(p, link->string);
2203         term_fontpop(p);
2204
2205         return(0);
2206 }
2207
2208
2209 /* ARGSUSED */
2210 static int
2211 termp_bk_pre(DECL_ARGS)
2212 {
2213
2214         switch (n->type) {
2215         case (MDOC_BLOCK):
2216                 break;
2217         case (MDOC_HEAD):
2218                 return(0);
2219         case (MDOC_BODY):
2220                 if (n->parent->args || 0 == n->prev->nchild)
2221                         p->flags |= TERMP_PREKEEP;
2222                 break;
2223         default:
2224                 abort();
2225                 /* NOTREACHED */
2226         }
2227
2228         return(1);
2229 }
2230
2231
2232 /* ARGSUSED */
2233 static void
2234 termp_bk_post(DECL_ARGS)
2235 {
2236
2237         if (MDOC_BODY == n->type)
2238                 p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
2239 }
2240
2241 /* ARGSUSED */
2242 static void
2243 termp__t_post(DECL_ARGS)
2244 {
2245
2246         /*
2247          * If we're in an `Rs' and there's a journal present, then quote
2248          * us instead of underlining us (for disambiguation).
2249          */
2250         if (n->parent && MDOC_Rs == n->parent->tok &&
2251                         n->parent->norm->Rs.quote_T)
2252                 termp_quote_post(p, pair, meta, n);
2253
2254         termp____post(p, pair, meta, n);
2255 }
2256
2257 /* ARGSUSED */
2258 static int
2259 termp__t_pre(DECL_ARGS)
2260 {
2261
2262         /*
2263          * If we're in an `Rs' and there's a journal present, then quote
2264          * us instead of underlining us (for disambiguation).
2265          */
2266         if (n->parent && MDOC_Rs == n->parent->tok &&
2267                         n->parent->norm->Rs.quote_T)
2268                 return(termp_quote_pre(p, pair, meta, n));
2269
2270         term_fontpush(p, TERMFONT_UNDER);
2271         return(1);
2272 }
2273
2274 /* ARGSUSED */
2275 static int
2276 termp_under_pre(DECL_ARGS)
2277 {
2278
2279         term_fontpush(p, TERMFONT_UNDER);
2280         return(1);
2281 }