1 /*      $Id: mdoc_term.c,v 1.238 2011/11/13 13:15:14 schwarze Exp $ */
   2 /*
   3  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   4  * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18 #ifdef HAVE_CONFIG_H
  19 #include "config.h"
  20 #endif
  21 
  22 #include <sys/types.h>
  23 
  24 #include <assert.h>
  25 #include <ctype.h>
  26 #include <stdint.h>
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 
  31 #include "mandoc.h"
  32 #include "out.h"
  33 #include "term.h"
  34 #include "mdoc.h"
  35 #include "main.h"
  36 
  37 struct  termpair {
  38         struct termpair  *ppair;
  39         int               count;
  40 };
  41 
  42 #define DECL_ARGS struct termp *p, \
  43                   struct termpair *pair, \
  44                   const struct mdoc_meta *m, \
  45                   const struct mdoc_node *n
  46 
  47 struct  termact {
  48         int     (*pre)(DECL_ARGS);
  49         void    (*post)(DECL_ARGS);
  50 };
  51 
  52 static  size_t    a2width(const struct termp *, const char *);
  53 static  size_t    a2height(const struct termp *, const char *);
  54 static  size_t    a2offs(const struct termp *, const char *);
  55 
  56 static  void      print_bvspace(struct termp *,
  57                         const struct mdoc_node *,
  58                         const struct mdoc_node *);
  59 static  void      print_mdoc_node(DECL_ARGS);
  60 static  void      print_mdoc_nodelist(DECL_ARGS);
  61 static  void      print_mdoc_head(struct termp *, const void *);
  62 static  void      print_mdoc_foot(struct termp *, const void *);
  63 static  void      synopsis_pre(struct termp *, 
  64                         const struct mdoc_node *);
  65 
  66 static  void      termp____post(DECL_ARGS);
  67 static  void      termp__t_post(DECL_ARGS);
  68 static  void      termp_an_post(DECL_ARGS);
  69 static  void      termp_bd_post(DECL_ARGS);
  70 static  void      termp_bk_post(DECL_ARGS);
  71 static  void      termp_bl_post(DECL_ARGS);
  72 static  void      termp_d1_post(DECL_ARGS);
  73 static  void      termp_fo_post(DECL_ARGS);
  74 static  void      termp_in_post(DECL_ARGS);
  75 static  void      termp_it_post(DECL_ARGS);
  76 static  void      termp_lb_post(DECL_ARGS);
  77 static  void      termp_nm_post(DECL_ARGS);
  78 static  void      termp_pf_post(DECL_ARGS);
  79 static  void      termp_quote_post(DECL_ARGS);
  80 static  void      termp_sh_post(DECL_ARGS);
  81 static  void      termp_ss_post(DECL_ARGS);
  82 
  83 static  int       termp__a_pre(DECL_ARGS);
  84 static  int       termp__t_pre(DECL_ARGS);
  85 static  int       termp_an_pre(DECL_ARGS);
  86 static  int       termp_ap_pre(DECL_ARGS);
  87 static  int       termp_bd_pre(DECL_ARGS);
  88 static  int       termp_bf_pre(DECL_ARGS);
  89 static  int       termp_bk_pre(DECL_ARGS);
  90 static  int       termp_bl_pre(DECL_ARGS);
  91 static  int       termp_bold_pre(DECL_ARGS);
  92 static  int       termp_bt_pre(DECL_ARGS);
  93 static  int       termp_bx_pre(DECL_ARGS);
  94 static  int       termp_cd_pre(DECL_ARGS);
  95 static  int       termp_d1_pre(DECL_ARGS);
  96 static  int       termp_ex_pre(DECL_ARGS);
  97 static  int       termp_fa_pre(DECL_ARGS);
  98 static  int       termp_fd_pre(DECL_ARGS);
  99 static  int       termp_fl_pre(DECL_ARGS);
 100 static  int       termp_fn_pre(DECL_ARGS);
 101 static  int       termp_fo_pre(DECL_ARGS);
 102 static  int       termp_ft_pre(DECL_ARGS);
 103 static  int       termp_igndelim_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_d1_post }, /* D1 */
 133         { termp_d1_pre, termp_d1_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, NULL }, /* 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         { termp_igndelim_pre, 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         { termp_igndelim_pre, 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         { termp_under_pre, 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  *m;
 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         m = mdoc_meta(mdoc);
 271 
 272         term_begin(p, print_mdoc_head, print_mdoc_foot, m);
 273 
 274         if (n->child)
 275                 print_mdoc_nodelist(p, NULL, m, 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, m, n);
 286         if (n->next)
 287                 print_mdoc_nodelist(p, pair, m, n->next);
 288 }
 289 
 290 
 291 /* ARGSUSED */
 292 static void
 293 print_mdoc_node(DECL_ARGS)
 294 {
 295         int              chld;
 296         const void      *font;
 297         struct termpair  npair;
 298         size_t           offset, rmargin;
 299 
 300         chld = 1;
 301         offset = p->offset;
 302         rmargin = p->rmargin;
 303         font = term_fontq(p);
 304 
 305         memset(&npair, 0, sizeof(struct termpair));
 306         npair.ppair = pair;
 307 
 308         /*
 309          * Keeps only work until the end of a line.  If a keep was
 310          * invoked in a prior line, revert it to PREKEEP.
 311          *
 312          * Also let SYNPRETTY sections behave as if they were wrapped
 313          * in a `Bk' block.
 314          */
 315 
 316         if (TERMP_KEEP & p->flags || MDOC_SYNPRETTY & n->flags) {
 317                 if (n->prev && n->prev->line != n->line) {
 318                         p->flags &= ~TERMP_KEEP;
 319                         p->flags |= TERMP_PREKEEP;
 320                 } else if (NULL == n->prev) {
 321                         if (n->parent && n->parent->line != n->line) {
 322                                 p->flags &= ~TERMP_KEEP;
 323                                 p->flags |= TERMP_PREKEEP;
 324                         }
 325                 }
 326         }
 327 
 328         /*
 329          * Since SYNPRETTY sections aren't "turned off" with `Ek',
 330          * we have to intuit whether we should disable formatting.
 331          */
 332 
 333         if ( ! (MDOC_SYNPRETTY & n->flags) &&
 334             ((n->prev   && MDOC_SYNPRETTY & n->prev->flags) ||
 335              (n->parent && MDOC_SYNPRETTY & n->parent->flags)))
 336                 p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
 337 
 338         /*
 339          * After the keep flags have been set up, we may now
 340          * produce output.  Note that some pre-handlers do so.
 341          */
 342 
 343         switch (n->type) {
 344         case (MDOC_TEXT):
 345                 if (' ' == *n->string && MDOC_LINE & n->flags)
 346                         term_newln(p);
 347                 if (MDOC_DELIMC & n->flags)
 348                         p->flags |= TERMP_NOSPACE;
 349                 term_word(p, n->string);
 350                 if (MDOC_DELIMO & n->flags)
 351                         p->flags |= TERMP_NOSPACE;
 352                 break;
 353         case (MDOC_EQN):
 354                 term_eqn(p, n->eqn);
 355                 break;
 356         case (MDOC_TBL):
 357                 term_tbl(p, n->span);
 358                 break;
 359         default:
 360                 if (termacts[n->tok].pre && ENDBODY_NOT == n->end)
 361                         chld = (*termacts[n->tok].pre)
 362                                 (p, &npair, m, n);
 363                 break;
 364         }
 365 
 366         if (chld && n->child)
 367                 print_mdoc_nodelist(p, &npair, m, n->child);
 368 
 369         term_fontpopq(p, font);
 370 
 371         switch (n->type) {
 372         case (MDOC_TEXT):
 373                 break;
 374         case (MDOC_TBL):
 375                 break;
 376         case (MDOC_EQN):
 377                 break;
 378         default:
 379                 if ( ! termacts[n->tok].post || MDOC_ENDED & n->flags)
 380                         break;
 381                 (void)(*termacts[n->tok].post)(p, &npair, m, n);
 382 
 383                 /*
 384                  * Explicit end tokens not only call the post
 385                  * handler, but also tell the respective block
 386                  * that it must not call the post handler again.
 387                  */
 388                 if (ENDBODY_NOT != n->end)
 389                         n->pending->flags |= MDOC_ENDED;
 390 
 391                 /*
 392                  * End of line terminating an implicit block
 393                  * while an explicit block is still open.
 394                  * Continue the explicit block without spacing.
 395                  */
 396                 if (ENDBODY_NOSPACE == n->end)
 397                         p->flags |= TERMP_NOSPACE;
 398                 break;
 399         }
 400 
 401         if (MDOC_EOS & n->flags)
 402                 p->flags |= TERMP_SENTENCE;
 403 
 404         p->offset = offset;
 405         p->rmargin = rmargin;
 406 }
 407 
 408 
 409 static void
 410 print_mdoc_foot(struct termp *p, const void *arg)
 411 {
 412         const struct mdoc_meta *m;
 413 
 414         m = (const struct mdoc_meta *)arg;
 415 
 416         term_fontrepl(p, TERMFONT_NONE);
 417 
 418         /* 
 419          * Output the footer in new-groff style, that is, three columns
 420          * with the middle being the manual date and flanking columns
 421          * being the operating system:
 422          *
 423          * SYSTEM                  DATE                    SYSTEM
 424          */
 425 
 426         term_vspace(p);
 427 
 428         p->offset = 0;
 429         p->rmargin = (p->maxrmargin - 
 430                         term_strlen(p, m->date) + term_len(p, 1)) / 2;
 431         p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
 432 
 433         term_word(p, m->os);
 434         term_flushln(p);
 435 
 436         p->offset = p->rmargin;
 437         p->rmargin = p->maxrmargin - term_strlen(p, m->os);
 438         p->flags |= TERMP_NOSPACE;
 439 
 440         term_word(p, m->date);
 441         term_flushln(p);
 442 
 443         p->offset = p->rmargin;
 444         p->rmargin = p->maxrmargin;
 445         p->flags &= ~TERMP_NOBREAK;
 446         p->flags |= TERMP_NOSPACE;
 447 
 448         term_word(p, m->os);
 449         term_flushln(p);
 450 
 451         p->offset = 0;
 452         p->rmargin = p->maxrmargin;
 453         p->flags = 0;
 454 }
 455 
 456 
 457 static void
 458 print_mdoc_head(struct termp *p, const void *arg)
 459 {
 460         char            buf[BUFSIZ], title[BUFSIZ];
 461         size_t          buflen, titlen;
 462         const struct mdoc_meta *m;
 463 
 464         m = (const struct mdoc_meta *)arg;
 465 
 466         /*
 467          * The header is strange.  It has three components, which are
 468          * really two with the first duplicated.  It goes like this:
 469          *
 470          * IDENTIFIER              TITLE                   IDENTIFIER
 471          *
 472          * The IDENTIFIER is NAME(SECTION), which is the command-name
 473          * (if given, or "unknown" if not) followed by the manual page
 474          * section.  These are given in `Dt'.  The TITLE is a free-form
 475          * string depending on the manual volume.  If not specified, it
 476          * switches on the manual section.
 477          */
 478 
 479         p->offset = 0;
 480         p->rmargin = p->maxrmargin;
 481 
 482         assert(m->vol);
 483         strlcpy(buf, m->vol, BUFSIZ);
 484         buflen = term_strlen(p, buf);
 485 
 486         if (m->arch) {
 487                 strlcat(buf, " (", BUFSIZ);
 488                 strlcat(buf, m->arch, BUFSIZ);
 489                 strlcat(buf, ")", BUFSIZ);
 490         }
 491 
 492         snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
 493         titlen = term_strlen(p, title);
 494 
 495         p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
 496         p->offset = 0;
 497         p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
 498             (p->maxrmargin -
 499              term_strlen(p, buf) + term_len(p, 1)) / 2 :
 500             p->maxrmargin - buflen;
 501 
 502         term_word(p, title);
 503         term_flushln(p);
 504 
 505         p->flags |= TERMP_NOSPACE;
 506         p->offset = p->rmargin;
 507         p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
 508             p->maxrmargin - titlen : p->maxrmargin;
 509 
 510         term_word(p, buf);
 511         term_flushln(p);
 512 
 513         p->flags &= ~TERMP_NOBREAK;
 514         if (p->rmargin + titlen <= p->maxrmargin) {
 515                 p->flags |= TERMP_NOSPACE;
 516                 p->offset = p->rmargin;
 517                 p->rmargin = p->maxrmargin;
 518                 term_word(p, title);
 519                 term_flushln(p);
 520         }
 521 
 522         p->flags &= ~TERMP_NOSPACE;
 523         p->offset = 0;
 524         p->rmargin = p->maxrmargin;
 525 }
 526 
 527 
 528 static size_t
 529 a2height(const struct termp *p, const char *v)
 530 {
 531         struct roffsu    su;
 532 
 533 
 534         assert(v);
 535         if ( ! a2roffsu(v, &su, SCALE_VS))
 536                 SCALE_VS_INIT(&su, atoi(v));
 537 
 538         return(term_vspan(p, &su));
 539 }
 540 
 541 
 542 static size_t
 543 a2width(const struct termp *p, const char *v)
 544 {
 545         struct roffsu    su;
 546 
 547         assert(v);
 548         if ( ! a2roffsu(v, &su, SCALE_MAX))
 549                 SCALE_HS_INIT(&su, term_strlen(p, v));
 550 
 551         return(term_hspan(p, &su));
 552 }
 553 
 554 
 555 static size_t
 556 a2offs(const struct termp *p, const char *v)
 557 {
 558         struct roffsu    su;
 559 
 560         if ('\0' == *v)
 561                 return(0);
 562         else if (0 == strcmp(v, "left"))
 563                 return(0);
 564         else if (0 == strcmp(v, "indent"))
 565                 return(term_len(p, p->defindent + 1));
 566         else if (0 == strcmp(v, "indent-two"))
 567                 return(term_len(p, (p->defindent + 1) * 2));
 568         else if ( ! a2roffsu(v, &su, SCALE_MAX))
 569                 SCALE_HS_INIT(&su, term_strlen(p, v));
 570 
 571         return(term_hspan(p, &su));
 572 }
 573 
 574 
 575 /*
 576  * Determine how much space to print out before block elements of `It'
 577  * (and thus `Bl') and `Bd'.  And then go ahead and print that space,
 578  * too.
 579  */
 580 static void
 581 print_bvspace(struct termp *p, 
 582                 const struct mdoc_node *bl, 
 583                 const struct mdoc_node *n)
 584 {
 585         const struct mdoc_node  *nn;
 586 
 587         assert(n);
 588 
 589         term_newln(p);
 590 
 591         if (MDOC_Bd == bl->tok && bl->norm->Bd.comp)
 592                 return;
 593         if (MDOC_Bl == bl->tok && bl->norm->Bl.comp)
 594                 return;
 595 
 596         /* Do not vspace directly after Ss/Sh. */
 597 
 598         for (nn = n; nn; nn = nn->parent) {
 599                 if (MDOC_BLOCK != nn->type)
 600                         continue;
 601                 if (MDOC_Ss == nn->tok)
 602                         return;
 603                 if (MDOC_Sh == nn->tok)
 604                         return;
 605                 if (NULL == nn->prev)
 606                         continue;
 607                 break;
 608         }
 609 
 610         /* A `-column' does not assert vspace within the list. */
 611 
 612         if (MDOC_Bl == bl->tok && LIST_column == bl->norm->Bl.type)
 613                 if (n->prev && MDOC_It == n->prev->tok)
 614                         return;
 615 
 616         /* A `-diag' without body does not vspace. */
 617 
 618         if (MDOC_Bl == bl->tok && LIST_diag == bl->norm->Bl.type)
 619                 if (n->prev && MDOC_It == n->prev->tok) {
 620                         assert(n->prev->body);
 621                         if (NULL == n->prev->body->child)
 622                                 return;
 623                 }
 624 
 625         term_vspace(p);
 626 }
 627 
 628 
 629 /* ARGSUSED */
 630 static int
 631 termp_it_pre(DECL_ARGS)
 632 {
 633         const struct mdoc_node *bl, *nn;
 634         char                    buf[7];
 635         int                     i;
 636         size_t                  width, offset, ncols, dcol;
 637         enum mdoc_list          type;
 638 
 639         if (MDOC_BLOCK == n->type) {
 640                 print_bvspace(p, n->parent->parent, n);
 641                 return(1);
 642         }
 643 
 644         bl = n->parent->parent->parent;
 645         type = bl->norm->Bl.type;
 646 
 647         /* 
 648          * First calculate width and offset.  This is pretty easy unless
 649          * we're a -column list, in which case all prior columns must
 650          * be accounted for.
 651          */
 652 
 653         width = offset = 0;
 654 
 655         if (bl->norm->Bl.offs)
 656                 offset = a2offs(p, bl->norm->Bl.offs);
 657 
 658         switch (type) {
 659         case (LIST_column):
 660                 if (MDOC_HEAD == n->type)
 661                         break;
 662 
 663                 /*
 664                  * Imitate groff's column handling:
 665                  * - For each earlier column, add its width.
 666                  * - For less than 5 columns, add four more blanks per
 667                  *   column.
 668                  * - For exactly 5 columns, add three more blank per
 669                  *   column.
 670                  * - For more than 5 columns, add only one column.
 671                  */
 672                 ncols = bl->norm->Bl.ncols;
 673 
 674                 /* LINTED */
 675                 dcol = ncols < 5 ? term_len(p, 4) : 
 676                         ncols == 5 ? term_len(p, 3) : term_len(p, 1);
 677 
 678                 /*
 679                  * Calculate the offset by applying all prior MDOC_BODY,
 680                  * so we stop at the MDOC_HEAD (NULL == nn->prev).
 681                  */
 682 
 683                 for (i = 0, nn = n->prev; 
 684                                 nn->prev && i < (int)ncols; 
 685                                 nn = nn->prev, i++)
 686                         offset += dcol + a2width
 687                                 (p, bl->norm->Bl.cols[i]);
 688 
 689                 /*
 690                  * When exceeding the declared number of columns, leave
 691                  * the remaining widths at 0.  This will later be
 692                  * adjusted to the default width of 10, or, for the last
 693                  * column, stretched to the right margin.
 694                  */
 695                 if (i >= (int)ncols)
 696                         break;
 697 
 698                 /*
 699                  * Use the declared column widths, extended as explained
 700                  * in the preceding paragraph.
 701                  */
 702                 width = a2width(p, bl->norm->Bl.cols[i]) + dcol;
 703                 break;
 704         default:
 705                 if (NULL == bl->norm->Bl.width)
 706                         break;
 707 
 708                 /* 
 709                  * Note: buffer the width by 2, which is groff's magic
 710                  * number for buffering single arguments.  See the above
 711                  * handling for column for how this changes.
 712                  */
 713                 assert(bl->norm->Bl.width);
 714                 width = a2width(p, bl->norm->Bl.width) + term_len(p, 2);
 715                 break;
 716         }
 717 
 718         /* 
 719          * List-type can override the width in the case of fixed-head
 720          * values (bullet, dash/hyphen, enum).  Tags need a non-zero
 721          * offset.
 722          */
 723 
 724         switch (type) {
 725         case (LIST_bullet):
 726                 /* FALLTHROUGH */
 727         case (LIST_dash):
 728                 /* FALLTHROUGH */
 729         case (LIST_hyphen):
 730                 if (width < term_len(p, 4))
 731                         width = term_len(p, 4);
 732                 break;
 733         case (LIST_enum):
 734                 if (width < term_len(p, 5))
 735                         width = term_len(p, 5);
 736                 break;
 737         case (LIST_hang):
 738                 if (0 == width)
 739                         width = term_len(p, 8);
 740                 break;
 741         case (LIST_column):
 742                 /* FALLTHROUGH */
 743         case (LIST_tag):
 744                 if (0 == width)
 745                         width = term_len(p, 10);
 746                 break;
 747         default:
 748                 break;
 749         }
 750 
 751         /* 
 752          * Whitespace control.  Inset bodies need an initial space,
 753          * while diagonal bodies need two.
 754          */
 755 
 756         p->flags |= TERMP_NOSPACE;
 757 
 758         switch (type) {
 759         case (LIST_diag):
 760                 if (MDOC_BODY == n->type)
 761                         term_word(p, "\\ \\ ");
 762                 break;
 763         case (LIST_inset):
 764                 if (MDOC_BODY == n->type) 
 765                         term_word(p, "\\ ");
 766                 break;
 767         default:
 768                 break;
 769         }
 770 
 771         p->flags |= TERMP_NOSPACE;
 772 
 773         switch (type) {
 774         case (LIST_diag):
 775                 if (MDOC_HEAD == n->type)
 776                         term_fontpush(p, TERMFONT_BOLD);
 777                 break;
 778         default:
 779                 break;
 780         }
 781 
 782         /*
 783          * Pad and break control.  This is the tricky part.  These flags
 784          * are documented in term_flushln() in term.c.  Note that we're
 785          * going to unset all of these flags in termp_it_post() when we
 786          * exit.
 787          */
 788 
 789         switch (type) {
 790         case (LIST_bullet):
 791                 /* FALLTHROUGH */
 792         case (LIST_dash):
 793                 /* FALLTHROUGH */
 794         case (LIST_enum):
 795                 /* FALLTHROUGH */
 796         case (LIST_hyphen):
 797                 if (MDOC_HEAD == n->type)
 798                         p->flags |= TERMP_NOBREAK;
 799                 break;
 800         case (LIST_hang):
 801                 if (MDOC_HEAD == n->type)
 802                         p->flags |= TERMP_NOBREAK;
 803                 else
 804                         break;
 805 
 806                 /*
 807                  * This is ugly.  If `-hang' is specified and the body
 808                  * is a `Bl' or `Bd', then we want basically to nullify
 809                  * the "overstep" effect in term_flushln() and treat
 810                  * this as a `-ohang' list instead.
 811                  */
 812                 if (n->next->child && 
 813                                 (MDOC_Bl == n->next->child->tok ||
 814                                  MDOC_Bd == n->next->child->tok))
 815                         p->flags &= ~TERMP_NOBREAK;
 816                 else
 817                         p->flags |= TERMP_HANG;
 818                 break;
 819         case (LIST_tag):
 820                 if (MDOC_HEAD == n->type)
 821                         p->flags |= TERMP_NOBREAK | TERMP_TWOSPACE;
 822 
 823                 if (MDOC_HEAD != n->type)
 824                         break;
 825                 if (NULL == n->next || NULL == n->next->child)
 826                         p->flags |= TERMP_DANGLE;
 827                 break;
 828         case (LIST_column):
 829                 if (MDOC_HEAD == n->type)
 830                         break;
 831 
 832                 if (NULL == n->next)
 833                         p->flags &= ~TERMP_NOBREAK;
 834                 else
 835                         p->flags |= TERMP_NOBREAK;
 836 
 837                 break;
 838         case (LIST_diag):
 839                 if (MDOC_HEAD == n->type)
 840                         p->flags |= TERMP_NOBREAK;
 841                 break;
 842         default:
 843                 break;
 844         }
 845 
 846         /* 
 847          * Margin control.  Set-head-width lists have their right
 848          * margins shortened.  The body for these lists has the offset
 849          * necessarily lengthened.  Everybody gets the offset.
 850          */
 851 
 852         p->offset += offset;
 853 
 854         switch (type) {
 855         case (LIST_hang):
 856                 /*
 857                  * Same stipulation as above, regarding `-hang'.  We
 858                  * don't want to recalculate rmargin and offsets when
 859                  * using `Bd' or `Bl' within `-hang' overstep lists.
 860                  */
 861                 if (MDOC_HEAD == n->type && n->next->child &&
 862                                 (MDOC_Bl == n->next->child->tok || 
 863                                  MDOC_Bd == n->next->child->tok))
 864                         break;
 865                 /* FALLTHROUGH */
 866         case (LIST_bullet):
 867                 /* FALLTHROUGH */
 868         case (LIST_dash):
 869                 /* FALLTHROUGH */
 870         case (LIST_enum):
 871                 /* FALLTHROUGH */
 872         case (LIST_hyphen):
 873                 /* FALLTHROUGH */
 874         case (LIST_tag):
 875                 assert(width);
 876                 if (MDOC_HEAD == n->type)
 877                         p->rmargin = p->offset + width;
 878                 else 
 879                         p->offset += width;
 880                 break;
 881         case (LIST_column):
 882                 assert(width);
 883                 p->rmargin = p->offset + width;
 884                 /* 
 885                  * XXX - this behaviour is not documented: the
 886                  * right-most column is filled to the right margin.
 887                  */
 888                 if (MDOC_HEAD == n->type)
 889                         break;
 890                 if (NULL == n->next && p->rmargin < p->maxrmargin)
 891                         p->rmargin = p->maxrmargin;
 892                 break;
 893         default:
 894                 break;
 895         }
 896 
 897         /* 
 898          * The dash, hyphen, bullet and enum lists all have a special
 899          * HEAD character (temporarily bold, in some cases).  
 900          */
 901 
 902         if (MDOC_HEAD == n->type)
 903                 switch (type) {
 904                 case (LIST_bullet):
 905                         term_fontpush(p, TERMFONT_BOLD);
 906                         term_word(p, "\\[bu]");
 907                         term_fontpop(p);
 908                         break;
 909                 case (LIST_dash):
 910                         /* FALLTHROUGH */
 911                 case (LIST_hyphen):
 912                         term_fontpush(p, TERMFONT_BOLD);
 913                         term_word(p, "\\(hy");
 914                         term_fontpop(p);
 915                         break;
 916                 case (LIST_enum):
 917                         (pair->ppair->ppair->count)++;
 918                         snprintf(buf, sizeof(buf), "%d.", 
 919                                         pair->ppair->ppair->count);
 920                         term_word(p, buf);
 921                         break;
 922                 default:
 923                         break;
 924                 }
 925 
 926         /* 
 927          * If we're not going to process our children, indicate so here.
 928          */
 929 
 930         switch (type) {
 931         case (LIST_bullet):
 932                 /* FALLTHROUGH */
 933         case (LIST_item):
 934                 /* FALLTHROUGH */
 935         case (LIST_dash):
 936                 /* FALLTHROUGH */
 937         case (LIST_hyphen):
 938                 /* FALLTHROUGH */
 939         case (LIST_enum):
 940                 if (MDOC_HEAD == n->type)
 941                         return(0);
 942                 break;
 943         case (LIST_column):
 944                 if (MDOC_HEAD == n->type)
 945                         return(0);
 946                 break;
 947         default:
 948                 break;
 949         }
 950 
 951         return(1);
 952 }
 953 
 954 
 955 /* ARGSUSED */
 956 static void
 957 termp_it_post(DECL_ARGS)
 958 {
 959         enum mdoc_list     type;
 960 
 961         if (MDOC_BLOCK == n->type)
 962                 return;
 963 
 964         type = n->parent->parent->parent->norm->Bl.type;
 965 
 966         switch (type) {
 967         case (LIST_item):
 968                 /* FALLTHROUGH */
 969         case (LIST_diag):
 970                 /* FALLTHROUGH */
 971         case (LIST_inset):
 972                 if (MDOC_BODY == n->type)
 973                         term_newln(p);
 974                 break;
 975         case (LIST_column):
 976                 if (MDOC_BODY == n->type)
 977                         term_flushln(p);
 978                 break;
 979         default:
 980                 term_newln(p);
 981                 break;
 982         }
 983 
 984         /* 
 985          * Now that our output is flushed, we can reset our tags.  Since
 986          * only `It' sets these flags, we're free to assume that nobody
 987          * has munged them in the meanwhile.
 988          */
 989 
 990         p->flags &= ~TERMP_DANGLE;
 991         p->flags &= ~TERMP_NOBREAK;
 992         p->flags &= ~TERMP_TWOSPACE;
 993         p->flags &= ~TERMP_HANG;
 994 }
 995 
 996 
 997 /* ARGSUSED */
 998 static int
 999 termp_nm_pre(DECL_ARGS)
1000 {
1001 
1002         if (MDOC_BLOCK == n->type)
1003                 return(1);
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 ? term_strlen(p, m->name) :
1011                      MDOC_TEXT == n->prev->child->type ?
1012                         term_strlen(p, n->prev->child->string) :
1013                      term_len(p, 5));
1014                 return(1);
1015         }
1016 
1017         if (NULL == n->child && NULL == m->name)
1018                 return(0);
1019 
1020         if (MDOC_HEAD == n->type)
1021                 synopsis_pre(p, n->parent);
1022 
1023         if (MDOC_HEAD == n->type && n->next->child) {
1024                 p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1025                 p->rmargin = p->offset + term_len(p, 1);
1026                 if (NULL == n->child) {
1027                         p->rmargin += term_strlen(p, m->name);
1028                 } else if (MDOC_TEXT == n->child->type) {
1029                         p->rmargin += term_strlen(p, n->child->string);
1030                         if (n->child->next)
1031                                 p->flags |= TERMP_HANG;
1032                 } else {
1033                         p->rmargin += term_len(p, 5);
1034                         p->flags |= TERMP_HANG;
1035                 }
1036         }
1037 
1038         term_fontpush(p, TERMFONT_BOLD);
1039         if (NULL == n->child)
1040                 term_word(p, m->name);
1041         return(1);
1042 }
1043 
1044 
1045 /* ARGSUSED */
1046 static void
1047 termp_nm_post(DECL_ARGS)
1048 {
1049 
1050         if (MDOC_HEAD == n->type && n->next->child) {
1051                 term_flushln(p);
1052                 p->flags &= ~(TERMP_NOBREAK | TERMP_HANG);
1053         } else if (MDOC_BODY == n->type && n->child)
1054                 term_flushln(p);
1055 }
1056 
1057                 
1058 /* ARGSUSED */
1059 static int
1060 termp_fl_pre(DECL_ARGS)
1061 {
1062 
1063         term_fontpush(p, TERMFONT_BOLD);
1064         term_word(p, "\\-");
1065 
1066         if (n->child)
1067                 p->flags |= TERMP_NOSPACE;
1068         else if (n->next && n->next->line == n->line)
1069                 p->flags |= TERMP_NOSPACE;
1070 
1071         return(1);
1072 }
1073 
1074 
1075 /* ARGSUSED */
1076 static int
1077 termp__a_pre(DECL_ARGS)
1078 {
1079 
1080         if (n->prev && MDOC__A == n->prev->tok)
1081                 if (NULL == n->next || MDOC__A != n->next->tok)
1082                         term_word(p, "and");
1083 
1084         return(1);
1085 }
1086 
1087 
1088 /* ARGSUSED */
1089 static int
1090 termp_an_pre(DECL_ARGS)
1091 {
1092 
1093         if (NULL == n->child)
1094                 return(1);
1095 
1096         /*
1097          * If not in the AUTHORS section, `An -split' will cause
1098          * newlines to occur before the author name.  If in the AUTHORS
1099          * section, by default, the first `An' invocation is nosplit,
1100          * then all subsequent ones, regardless of whether interspersed
1101          * with other macros/text, are split.  -split, in this case,
1102          * will override the condition of the implied first -nosplit.
1103          */
1104         
1105         if (n->sec == SEC_AUTHORS) {
1106                 if ( ! (TERMP_ANPREC & p->flags)) {
1107                         if (TERMP_SPLIT & p->flags)
1108                                 term_newln(p);
1109                         return(1);
1110                 }
1111                 if (TERMP_NOSPLIT & p->flags)
1112                         return(1);
1113                 term_newln(p);
1114                 return(1);
1115         }
1116 
1117         if (TERMP_SPLIT & p->flags)
1118                 term_newln(p);
1119 
1120         return(1);
1121 }
1122 
1123 
1124 /* ARGSUSED */
1125 static void
1126 termp_an_post(DECL_ARGS)
1127 {
1128 
1129         if (n->child) {
1130                 if (SEC_AUTHORS == n->sec)
1131                         p->flags |= TERMP_ANPREC;
1132                 return;
1133         }
1134 
1135         if (AUTH_split == n->norm->An.auth) {
1136                 p->flags &= ~TERMP_NOSPLIT;
1137                 p->flags |= TERMP_SPLIT;
1138         } else if (AUTH_nosplit == n->norm->An.auth) {
1139                 p->flags &= ~TERMP_SPLIT;
1140                 p->flags |= TERMP_NOSPLIT;
1141         }
1142 
1143 }
1144 
1145 
1146 /* ARGSUSED */
1147 static int
1148 termp_ns_pre(DECL_ARGS)
1149 {
1150 
1151         if ( ! (MDOC_LINE & n->flags))
1152                 p->flags |= TERMP_NOSPACE;
1153         return(1);
1154 }
1155 
1156 
1157 /* ARGSUSED */
1158 static int
1159 termp_rs_pre(DECL_ARGS)
1160 {
1161 
1162         if (SEC_SEE_ALSO != n->sec)
1163                 return(1);
1164         if (MDOC_BLOCK == n->type && n->prev)
1165                 term_vspace(p);
1166         return(1);
1167 }
1168 
1169 
1170 /* ARGSUSED */
1171 static int
1172 termp_rv_pre(DECL_ARGS)
1173 {
1174         int              nchild;
1175 
1176         term_newln(p);
1177         term_word(p, "The");
1178 
1179         nchild = n->nchild;
1180         for (n = n->child; n; n = n->next) {
1181                 term_fontpush(p, TERMFONT_BOLD);
1182                 term_word(p, n->string);
1183                 term_fontpop(p);
1184 
1185                 p->flags |= TERMP_NOSPACE;
1186                 term_word(p, "()");
1187 
1188                 if (nchild > 2 && n->next) {
1189                         p->flags |= TERMP_NOSPACE;
1190                         term_word(p, ",");
1191                 }
1192 
1193                 if (n->next && NULL == n->next->next)
1194                         term_word(p, "and");
1195         }
1196 
1197         if (nchild > 1)
1198                 term_word(p, "functions return");
1199         else
1200                 term_word(p, "function returns");
1201 
1202         term_word(p, "the value 0 if successful; otherwise the value "
1203                         "-1 is returned and the global variable");
1204 
1205         term_fontpush(p, TERMFONT_UNDER);
1206         term_word(p, "errno");
1207         term_fontpop(p);
1208 
1209         term_word(p, "is set to indicate the error.");
1210         p->flags |= TERMP_SENTENCE;
1211 
1212         return(0);
1213 }
1214 
1215 
1216 /* ARGSUSED */
1217 static int
1218 termp_ex_pre(DECL_ARGS)
1219 {
1220         int              nchild;
1221 
1222         term_newln(p);
1223         term_word(p, "The");
1224 
1225         nchild = n->nchild;
1226         for (n = n->child; n; n = n->next) {
1227                 term_fontpush(p, TERMFONT_BOLD);
1228                 term_word(p, n->string);
1229                 term_fontpop(p);
1230 
1231                 if (nchild > 2 && n->next) {
1232                         p->flags |= TERMP_NOSPACE;
1233                         term_word(p, ",");
1234                 }
1235 
1236                 if (n->next && NULL == n->next->next)
1237                         term_word(p, "and");
1238         }
1239 
1240         if (nchild > 1)
1241                 term_word(p, "utilities exit");
1242         else
1243                 term_word(p, "utility exits");
1244 
1245         term_word(p, "0 on success, and >0 if an error occurs.");
1246 
1247         p->flags |= TERMP_SENTENCE;
1248         return(0);
1249 }
1250 
1251 
1252 /* ARGSUSED */
1253 static int
1254 termp_nd_pre(DECL_ARGS)
1255 {
1256 
1257         if (MDOC_BODY != n->type)
1258                 return(1);
1259 
1260 #if defined(__OpenBSD__) || defined(__linux__)
1261         term_word(p, "\\(en");
1262 #else
1263         term_word(p, "\\(em");
1264 #endif
1265         return(1);
1266 }
1267 
1268 
1269 /* ARGSUSED */
1270 static int
1271 termp_bl_pre(DECL_ARGS)
1272 {
1273 
1274         return(MDOC_HEAD != n->type);
1275 }
1276 
1277 
1278 /* ARGSUSED */
1279 static void
1280 termp_bl_post(DECL_ARGS)
1281 {
1282 
1283         if (MDOC_BLOCK == n->type)
1284                 term_newln(p);
1285 }
1286 
1287 /* ARGSUSED */
1288 static int
1289 termp_xr_pre(DECL_ARGS)
1290 {
1291 
1292         if (NULL == (n = n->child))
1293                 return(0);
1294 
1295         assert(MDOC_TEXT == n->type);
1296         term_word(p, n->string);
1297 
1298         if (NULL == (n = n->next)) 
1299                 return(0);
1300 
1301         p->flags |= TERMP_NOSPACE;
1302         term_word(p, "(");
1303         p->flags |= TERMP_NOSPACE;
1304 
1305         assert(MDOC_TEXT == n->type);
1306         term_word(p, n->string);
1307 
1308         p->flags |= TERMP_NOSPACE;
1309         term_word(p, ")");
1310 
1311         return(0);
1312 }
1313 
1314 /*
1315  * This decides how to assert whitespace before any of the SYNOPSIS set
1316  * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
1317  * macro combos).
1318  */
1319 static void
1320 synopsis_pre(struct termp *p, const struct mdoc_node *n)
1321 {
1322         /* 
1323          * Obviously, if we're not in a SYNOPSIS or no prior macros
1324          * exist, do nothing.
1325          */
1326         if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
1327                 return;
1328 
1329         /*
1330          * If we're the second in a pair of like elements, emit our
1331          * newline and return.  UNLESS we're `Fo', `Fn', `Fn', in which
1332          * case we soldier on.
1333          */
1334         if (n->prev->tok == n->tok && 
1335                         MDOC_Ft != n->tok && 
1336                         MDOC_Fo != n->tok && 
1337                         MDOC_Fn != n->tok) {
1338                 term_newln(p);
1339                 return;
1340         }
1341 
1342         /*
1343          * If we're one of the SYNOPSIS set and non-like pair-wise after
1344          * another (or Fn/Fo, which we've let slip through) then assert
1345          * vertical space, else only newline and move on.
1346          */
1347         switch (n->prev->tok) {
1348         case (MDOC_Fd):
1349                 /* FALLTHROUGH */
1350         case (MDOC_Fn):
1351                 /* FALLTHROUGH */
1352         case (MDOC_Fo):
1353                 /* FALLTHROUGH */
1354         case (MDOC_In):
1355                 /* FALLTHROUGH */
1356         case (MDOC_Vt):
1357                 term_vspace(p);
1358                 break;
1359         case (MDOC_Ft):
1360                 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
1361                         term_vspace(p);
1362                         break;
1363                 }
1364                 /* FALLTHROUGH */
1365         default:
1366                 term_newln(p);
1367                 break;
1368         }
1369 }
1370 
1371 
1372 static int
1373 termp_vt_pre(DECL_ARGS)
1374 {
1375 
1376         if (MDOC_ELEM == n->type) {
1377                 synopsis_pre(p, n);
1378                 return(termp_under_pre(p, pair, m, n));
1379         } else if (MDOC_BLOCK == n->type) {
1380                 synopsis_pre(p, n);
1381                 return(1);
1382         } else if (MDOC_HEAD == n->type)
1383                 return(0);
1384 
1385         return(termp_under_pre(p, pair, m, n));
1386 }
1387 
1388 
1389 /* ARGSUSED */
1390 static int
1391 termp_bold_pre(DECL_ARGS)
1392 {
1393 
1394         term_fontpush(p, TERMFONT_BOLD);
1395         return(1);
1396 }
1397 
1398 
1399 /* ARGSUSED */
1400 static int
1401 termp_fd_pre(DECL_ARGS)
1402 {
1403 
1404         synopsis_pre(p, n);
1405         return(termp_bold_pre(p, pair, m, n));
1406 }
1407 
1408 
1409 /* ARGSUSED */
1410 static int
1411 termp_sh_pre(DECL_ARGS)
1412 {
1413 
1414         /* No vspace between consecutive `Sh' calls. */
1415 
1416         switch (n->type) {
1417         case (MDOC_BLOCK):
1418                 if (n->prev && MDOC_Sh == n->prev->tok)
1419                         if (NULL == n->prev->body->child)
1420                                 break;
1421                 term_vspace(p);
1422                 break;
1423         case (MDOC_HEAD):
1424                 term_fontpush(p, TERMFONT_BOLD);
1425                 break;
1426         case (MDOC_BODY):
1427                 p->offset = term_len(p, p->defindent);
1428                 break;
1429         default:
1430                 break;
1431         }
1432         return(1);
1433 }
1434 
1435 
1436 /* ARGSUSED */
1437 static void
1438 termp_sh_post(DECL_ARGS)
1439 {
1440 
1441         switch (n->type) {
1442         case (MDOC_HEAD):
1443                 term_newln(p);
1444                 break;
1445         case (MDOC_BODY):
1446                 term_newln(p);
1447                 p->offset = 0;
1448                 break;
1449         default:
1450                 break;
1451         }
1452 }
1453 
1454 
1455 /* ARGSUSED */
1456 static int
1457 termp_bt_pre(DECL_ARGS)
1458 {
1459 
1460         term_word(p, "is currently in beta test.");
1461         p->flags |= TERMP_SENTENCE;
1462         return(0);
1463 }
1464 
1465 
1466 /* ARGSUSED */
1467 static void
1468 termp_lb_post(DECL_ARGS)
1469 {
1470 
1471         if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
1472                 term_newln(p);
1473 }
1474 
1475 
1476 /* ARGSUSED */
1477 static int
1478 termp_ud_pre(DECL_ARGS)
1479 {
1480 
1481         term_word(p, "currently under development.");
1482         p->flags |= TERMP_SENTENCE;
1483         return(0);
1484 }
1485 
1486 
1487 /* ARGSUSED */
1488 static int
1489 termp_d1_pre(DECL_ARGS)
1490 {
1491 
1492         if (MDOC_BLOCK != n->type)
1493                 return(1);
1494         term_newln(p);
1495         p->offset += term_len(p, p->defindent + 1);
1496         return(1);
1497 }
1498 
1499 
1500 /* ARGSUSED */
1501 static void
1502 termp_d1_post(DECL_ARGS)
1503 {
1504 
1505         if (MDOC_BLOCK != n->type) 
1506                 return;
1507         term_newln(p);
1508 }
1509 
1510 
1511 /* ARGSUSED */
1512 static int
1513 termp_ft_pre(DECL_ARGS)
1514 {
1515 
1516         /* NB: MDOC_LINE does not effect this! */
1517         synopsis_pre(p, n);
1518         term_fontpush(p, TERMFONT_UNDER);
1519         return(1);
1520 }
1521 
1522 
1523 /* ARGSUSED */
1524 static int
1525 termp_fn_pre(DECL_ARGS)
1526 {
1527         int              pretty;
1528 
1529         pretty = MDOC_SYNPRETTY & n->flags;
1530 
1531         synopsis_pre(p, n);
1532 
1533         if (NULL == (n = n->child))
1534                 return(0);
1535 
1536         assert(MDOC_TEXT == n->type);
1537         term_fontpush(p, TERMFONT_BOLD);
1538         term_word(p, n->string);
1539         term_fontpop(p);
1540 
1541         p->flags |= TERMP_NOSPACE;
1542         term_word(p, "(");
1543         p->flags |= TERMP_NOSPACE;
1544 
1545         for (n = n->next; n; n = n->next) {
1546                 assert(MDOC_TEXT == n->type);
1547                 term_fontpush(p, TERMFONT_UNDER);
1548                 term_word(p, n->string);
1549                 term_fontpop(p);
1550 
1551                 if (n->next) {
1552                         p->flags |= TERMP_NOSPACE;
1553                         term_word(p, ",");
1554                 }
1555         }
1556 
1557         p->flags |= TERMP_NOSPACE;
1558         term_word(p, ")");
1559 
1560         if (pretty) {
1561                 p->flags |= TERMP_NOSPACE;
1562                 term_word(p, ";");
1563         }
1564 
1565         return(0);
1566 }
1567 
1568 
1569 /* ARGSUSED */
1570 static int
1571 termp_fa_pre(DECL_ARGS)
1572 {
1573         const struct mdoc_node  *nn;
1574 
1575         if (n->parent->tok != MDOC_Fo) {
1576                 term_fontpush(p, TERMFONT_UNDER);
1577                 return(1);
1578         }
1579 
1580         for (nn = n->child; nn; nn = nn->next) {
1581                 term_fontpush(p, TERMFONT_UNDER);
1582                 term_word(p, nn->string);
1583                 term_fontpop(p);
1584 
1585                 if (nn->next) {
1586                         p->flags |= TERMP_NOSPACE;
1587                         term_word(p, ",");
1588                 }
1589         }
1590 
1591         if (n->child && n->next && n->next->tok == MDOC_Fa) {
1592                 p->flags |= TERMP_NOSPACE;
1593                 term_word(p, ",");
1594         }
1595 
1596         return(0);
1597 }
1598 
1599 
1600 /* ARGSUSED */
1601 static int
1602 termp_bd_pre(DECL_ARGS)
1603 {
1604         size_t                   tabwidth, rm, rmax;
1605         const struct mdoc_node  *nn;
1606 
1607         if (MDOC_BLOCK == n->type) {
1608                 print_bvspace(p, n, n);
1609                 return(1);
1610         } else if (MDOC_HEAD == n->type)
1611                 return(0);
1612 
1613         if (n->norm->Bd.offs)
1614                 p->offset += a2offs(p, n->norm->Bd.offs);
1615 
1616         /*
1617          * If -ragged or -filled are specified, the block does nothing
1618          * but change the indentation.  If -unfilled or -literal are
1619          * specified, text is printed exactly as entered in the display:
1620          * for macro lines, a newline is appended to the line.  Blank
1621          * lines are allowed.
1622          */
1623         
1624         if (DISP_literal != n->norm->Bd.type && 
1625                         DISP_unfilled != n->norm->Bd.type)
1626                 return(1);
1627 
1628         tabwidth = p->tabwidth;
1629         if (DISP_literal == n->norm->Bd.type)
1630                 p->tabwidth = term_len(p, 8);
1631 
1632         rm = p->rmargin;
1633         rmax = p->maxrmargin;
1634         p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1635 
1636         for (nn = n->child; nn; nn = nn->next) {
1637                 print_mdoc_node(p, pair, m, nn);
1638                 /*
1639                  * If the printed node flushes its own line, then we
1640                  * needn't do it here as well.  This is hacky, but the
1641                  * notion of selective eoln whitespace is pretty dumb
1642                  * anyway, so don't sweat it.
1643                  */
1644                 switch (nn->tok) {
1645                 case (MDOC_Sm):
1646                         /* FALLTHROUGH */
1647                 case (MDOC_br):
1648                         /* FALLTHROUGH */
1649                 case (MDOC_sp):
1650                         /* FALLTHROUGH */
1651                 case (MDOC_Bl):
1652                         /* FALLTHROUGH */
1653                 case (MDOC_D1):
1654                         /* FALLTHROUGH */
1655                 case (MDOC_Dl):
1656                         /* FALLTHROUGH */
1657                 case (MDOC_Lp):
1658                         /* FALLTHROUGH */
1659                 case (MDOC_Pp):
1660                         continue;
1661                 default:
1662                         break;
1663                 }
1664                 if (nn->next && nn->next->line == nn->line)
1665                         continue;
1666                 term_flushln(p);
1667                 p->flags |= TERMP_NOSPACE;
1668         }
1669 
1670         p->tabwidth = tabwidth;
1671         p->rmargin = rm;
1672         p->maxrmargin = rmax;
1673         return(0);
1674 }
1675 
1676 
1677 /* ARGSUSED */
1678 static void
1679 termp_bd_post(DECL_ARGS)
1680 {
1681         size_t           rm, rmax;
1682 
1683         if (MDOC_BODY != n->type) 
1684                 return;
1685 
1686         rm = p->rmargin;
1687         rmax = p->maxrmargin;
1688 
1689         if (DISP_literal == n->norm->Bd.type || 
1690                         DISP_unfilled == n->norm->Bd.type)
1691                 p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1692 
1693         p->flags |= TERMP_NOSPACE;
1694         term_newln(p);
1695 
1696         p->rmargin = rm;
1697         p->maxrmargin = rmax;
1698 }
1699 
1700 
1701 /* ARGSUSED */
1702 static int
1703 termp_bx_pre(DECL_ARGS)
1704 {
1705 
1706         if (NULL != (n = n->child)) {
1707                 term_word(p, n->string);
1708                 p->flags |= TERMP_NOSPACE;
1709                 term_word(p, "BSD");
1710         } else {
1711                 term_word(p, "BSD");
1712                 return(0);
1713         }
1714 
1715         if (NULL != (n = n->next)) {
1716                 p->flags |= TERMP_NOSPACE;
1717                 term_word(p, "-");
1718                 p->flags |= TERMP_NOSPACE;
1719                 term_word(p, n->string);
1720         }
1721 
1722         return(0);
1723 }
1724 
1725 
1726 /* ARGSUSED */
1727 static int
1728 termp_xx_pre(DECL_ARGS)
1729 {
1730         const char      *pp;
1731         int              flags;
1732 
1733         pp = NULL;
1734         switch (n->tok) {
1735         case (MDOC_Bsx):
1736                 pp = "BSD/OS";
1737                 break;
1738         case (MDOC_Dx):
1739                 pp = "DragonFly";
1740                 break;
1741         case (MDOC_Fx):
1742                 pp = "FreeBSD";
1743                 break;
1744         case (MDOC_Nx):
1745                 pp = "NetBSD";
1746                 break;
1747         case (MDOC_Ox):
1748                 pp = "OpenBSD";
1749                 break;
1750         case (MDOC_Ux):
1751                 pp = "UNIX";
1752                 break;
1753         default:
1754                 break;
1755         }
1756 
1757         term_word(p, pp);
1758         if (n->child) {
1759                 flags = p->flags;
1760                 p->flags |= TERMP_KEEP;
1761                 term_word(p, n->child->string);
1762                 p->flags = flags;
1763         }
1764         return(0);
1765 }
1766 
1767 
1768 /* ARGSUSED */
1769 static int
1770 termp_igndelim_pre(DECL_ARGS)
1771 {
1772 
1773         p->flags |= TERMP_IGNDELIM;
1774         return(1);
1775 }
1776 
1777 
1778 /* ARGSUSED */
1779 static void
1780 termp_pf_post(DECL_ARGS)
1781 {
1782 
1783         p->flags |= TERMP_NOSPACE;
1784 }
1785 
1786 
1787 /* ARGSUSED */
1788 static int
1789 termp_ss_pre(DECL_ARGS)
1790 {
1791 
1792         switch (n->type) {
1793         case (MDOC_BLOCK):
1794                 term_newln(p);
1795                 if (n->prev)
1796                         term_vspace(p);
1797                 break;
1798         case (MDOC_HEAD):
1799                 term_fontpush(p, TERMFONT_BOLD);
1800                 p->offset = term_len(p, (p->defindent+1)/2);
1801                 break;
1802         default:
1803                 break;
1804         }
1805 
1806         return(1);
1807 }
1808 
1809 
1810 /* ARGSUSED */
1811 static void
1812 termp_ss_post(DECL_ARGS)
1813 {
1814 
1815         if (MDOC_HEAD == n->type)
1816                 term_newln(p);
1817 }
1818 
1819 
1820 /* ARGSUSED */
1821 static int
1822 termp_cd_pre(DECL_ARGS)
1823 {
1824 
1825         synopsis_pre(p, n);
1826         term_fontpush(p, TERMFONT_BOLD);
1827         return(1);
1828 }
1829 
1830 
1831 /* ARGSUSED */
1832 static int
1833 termp_in_pre(DECL_ARGS)
1834 {
1835 
1836         synopsis_pre(p, n);
1837 
1838         if (MDOC_SYNPRETTY & n->flags && MDOC_LINE & n->flags) {
1839                 term_fontpush(p, TERMFONT_BOLD);
1840                 term_word(p, "#include");
1841                 term_word(p, "<");
1842         } else {
1843                 term_word(p, "<");
1844                 term_fontpush(p, TERMFONT_UNDER);
1845         }
1846 
1847         p->flags |= TERMP_NOSPACE;
1848         return(1);
1849 }
1850 
1851 
1852 /* ARGSUSED */
1853 static void
1854 termp_in_post(DECL_ARGS)
1855 {
1856 
1857         if (MDOC_SYNPRETTY & n->flags)
1858                 term_fontpush(p, TERMFONT_BOLD);
1859 
1860         p->flags |= TERMP_NOSPACE;
1861         term_word(p, ">");
1862 
1863         if (MDOC_SYNPRETTY & n->flags)
1864                 term_fontpop(p);
1865 }
1866 
1867 
1868 /* ARGSUSED */
1869 static int
1870 termp_sp_pre(DECL_ARGS)
1871 {
1872         size_t           i, len;
1873 
1874         switch (n->tok) {
1875         case (MDOC_sp):
1876                 len = n->child ? a2height(p, n->child->string) : 1;
1877                 break;
1878         case (MDOC_br):
1879                 len = 0;
1880                 break;
1881         default:
1882                 len = 1;
1883                 break;
1884         }
1885 
1886         if (0 == len)
1887                 term_newln(p);
1888         for (i = 0; i < len; i++)
1889                 term_vspace(p);
1890 
1891         return(0);
1892 }
1893 
1894 
1895 /* ARGSUSED */
1896 static int
1897 termp_quote_pre(DECL_ARGS)
1898 {
1899 
1900         if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1901                 return(1);
1902 
1903         switch (n->tok) {
1904         case (MDOC_Ao):
1905                 /* FALLTHROUGH */
1906         case (MDOC_Aq):
1907                 term_word(p, "<");
1908                 break;
1909         case (MDOC_Bro):
1910                 /* FALLTHROUGH */
1911         case (MDOC_Brq):
1912                 term_word(p, "{");
1913                 break;
1914         case (MDOC_Oo):
1915                 /* FALLTHROUGH */
1916         case (MDOC_Op):
1917                 /* FALLTHROUGH */
1918         case (MDOC_Bo):
1919                 /* FALLTHROUGH */
1920         case (MDOC_Bq):
1921                 term_word(p, "[");
1922                 break;
1923         case (MDOC_Do):
1924                 /* FALLTHROUGH */
1925         case (MDOC_Dq):
1926                 term_word(p, "``");
1927                 break;
1928         case (MDOC_Eo):
1929                 break;
1930         case (MDOC_Po):
1931                 /* FALLTHROUGH */
1932         case (MDOC_Pq):
1933                 term_word(p, "(");
1934                 break;
1935         case (MDOC__T):
1936                 /* FALLTHROUGH */
1937         case (MDOC_Qo):
1938                 /* FALLTHROUGH */
1939         case (MDOC_Qq):
1940                 term_word(p, "\"");
1941                 break;
1942         case (MDOC_Ql):
1943                 /* FALLTHROUGH */
1944         case (MDOC_So):
1945                 /* FALLTHROUGH */
1946         case (MDOC_Sq):
1947                 term_word(p, "`");
1948                 break;
1949         default:
1950                 abort();
1951                 /* NOTREACHED */
1952         }
1953 
1954         p->flags |= TERMP_NOSPACE;
1955         return(1);
1956 }
1957 
1958 
1959 /* ARGSUSED */
1960 static void
1961 termp_quote_post(DECL_ARGS)
1962 {
1963 
1964         if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1965                 return;
1966 
1967         p->flags |= TERMP_NOSPACE;
1968 
1969         switch (n->tok) {
1970         case (MDOC_Ao):
1971                 /* FALLTHROUGH */
1972         case (MDOC_Aq):
1973                 term_word(p, ">");
1974                 break;
1975         case (MDOC_Bro):
1976                 /* FALLTHROUGH */
1977         case (MDOC_Brq):
1978                 term_word(p, "}");
1979                 break;
1980         case (MDOC_Oo):
1981                 /* FALLTHROUGH */
1982         case (MDOC_Op):
1983                 /* FALLTHROUGH */
1984         case (MDOC_Bo):
1985                 /* FALLTHROUGH */
1986         case (MDOC_Bq):
1987                 term_word(p, "]");
1988                 break;
1989         case (MDOC_Do):
1990                 /* FALLTHROUGH */
1991         case (MDOC_Dq):
1992                 term_word(p, "''");
1993                 break;
1994         case (MDOC_Eo):
1995                 break;
1996         case (MDOC_Po):
1997                 /* FALLTHROUGH */
1998         case (MDOC_Pq):
1999                 term_word(p, ")");
2000                 break;
2001         case (MDOC__T):
2002                 /* FALLTHROUGH */
2003         case (MDOC_Qo):
2004                 /* FALLTHROUGH */
2005         case (MDOC_Qq):
2006                 term_word(p, "\"");
2007                 break;
2008         case (MDOC_Ql):
2009                 /* FALLTHROUGH */
2010         case (MDOC_So):
2011                 /* FALLTHROUGH */
2012         case (MDOC_Sq):
2013                 term_word(p, "'");
2014                 break;
2015         default:
2016                 abort();
2017                 /* NOTREACHED */
2018         }
2019 }
2020 
2021 
2022 /* ARGSUSED */
2023 static int
2024 termp_fo_pre(DECL_ARGS)
2025 {
2026 
2027         if (MDOC_BLOCK == n->type) {
2028                 synopsis_pre(p, n);
2029                 return(1);
2030         } else if (MDOC_BODY == n->type) {
2031                 p->flags |= TERMP_NOSPACE;
2032                 term_word(p, "(");
2033                 p->flags |= TERMP_NOSPACE;
2034                 return(1);
2035         } 
2036 
2037         if (NULL == n->child)
2038                 return(0);
2039 
2040         /* XXX: we drop non-initial arguments as per groff. */
2041 
2042         assert(n->child->string);
2043         term_fontpush(p, TERMFONT_BOLD);
2044         term_word(p, n->child->string);
2045         return(0);
2046 }
2047 
2048 
2049 /* ARGSUSED */
2050 static void
2051 termp_fo_post(DECL_ARGS)
2052 {
2053 
2054         if (MDOC_BODY != n->type) 
2055                 return;
2056 
2057         p->flags |= TERMP_NOSPACE;
2058         term_word(p, ")");
2059 
2060         if (MDOC_SYNPRETTY & n->flags) {
2061                 p->flags |= TERMP_NOSPACE;
2062                 term_word(p, ";");
2063         }
2064 }
2065 
2066 
2067 /* ARGSUSED */
2068 static int
2069 termp_bf_pre(DECL_ARGS)
2070 {
2071 
2072         if (MDOC_HEAD == n->type)
2073                 return(0);
2074         else if (MDOC_BLOCK != n->type)
2075                 return(1);
2076 
2077         if (FONT_Em == n->norm->Bf.font) 
2078                 term_fontpush(p, TERMFONT_UNDER);
2079         else if (FONT_Sy == n->norm->Bf.font) 
2080                 term_fontpush(p, TERMFONT_BOLD);
2081         else 
2082                 term_fontpush(p, TERMFONT_NONE);
2083 
2084         return(1);
2085 }
2086 
2087 
2088 /* ARGSUSED */
2089 static int
2090 termp_sm_pre(DECL_ARGS)
2091 {
2092 
2093         assert(n->child && MDOC_TEXT == n->child->type);
2094         if (0 == strcmp("on", n->child->string)) {
2095                 if (p->col)
2096                         p->flags &= ~TERMP_NOSPACE;
2097                 p->flags &= ~TERMP_NONOSPACE;
2098         } else
2099                 p->flags |= TERMP_NONOSPACE;
2100 
2101         return(0);
2102 }
2103 
2104 
2105 /* ARGSUSED */
2106 static int
2107 termp_ap_pre(DECL_ARGS)
2108 {
2109 
2110         p->flags |= TERMP_NOSPACE;
2111         term_word(p, "'");
2112         p->flags |= TERMP_NOSPACE;
2113         return(1);
2114 }
2115 
2116 
2117 /* ARGSUSED */
2118 static void
2119 termp____post(DECL_ARGS)
2120 {
2121 
2122         /*
2123          * Handle lists of authors.  In general, print each followed by
2124          * a comma.  Don't print the comma if there are only two
2125          * authors.
2126          */
2127         if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
2128                 if (NULL == n->next->next || MDOC__A != n->next->next->tok)
2129                         if (NULL == n->prev || MDOC__A != n->prev->tok)
2130                                 return;
2131 
2132         /* TODO: %U. */
2133 
2134         if (NULL == n->parent || MDOC_Rs != n->parent->tok)
2135                 return;
2136 
2137         p->flags |= TERMP_NOSPACE;
2138         if (NULL == n->next) {
2139                 term_word(p, ".");
2140                 p->flags |= TERMP_SENTENCE;
2141         } else
2142                 term_word(p, ",");
2143 }
2144 
2145 
2146 /* ARGSUSED */
2147 static int
2148 termp_li_pre(DECL_ARGS)
2149 {
2150 
2151         term_fontpush(p, TERMFONT_NONE);
2152         return(1);
2153 }
2154 
2155 
2156 /* ARGSUSED */
2157 static int
2158 termp_lk_pre(DECL_ARGS)
2159 {
2160         const struct mdoc_node *nn, *sv;
2161 
2162         term_fontpush(p, TERMFONT_UNDER);
2163 
2164         nn = sv = n->child;
2165 
2166         if (NULL == nn || NULL == nn->next)
2167                 return(1);
2168 
2169         for (nn = nn->next; nn; nn = nn->next) 
2170                 term_word(p, nn->string);
2171 
2172         term_fontpop(p);
2173 
2174         p->flags |= TERMP_NOSPACE;
2175         term_word(p, ":");
2176 
2177         term_fontpush(p, TERMFONT_BOLD);
2178         term_word(p, sv->string);
2179         term_fontpop(p);
2180 
2181         return(0);
2182 }
2183 
2184 
2185 /* ARGSUSED */
2186 static int
2187 termp_bk_pre(DECL_ARGS)
2188 {
2189 
2190         switch (n->type) {
2191         case (MDOC_BLOCK):
2192                 break;
2193         case (MDOC_HEAD):
2194                 return(0);
2195         case (MDOC_BODY):
2196                 if (n->parent->args || 0 == n->prev->nchild)
2197                         p->flags |= TERMP_PREKEEP;
2198                 break;
2199         default:
2200                 abort();
2201                 /* NOTREACHED */
2202         }
2203 
2204         return(1);
2205 }
2206 
2207 
2208 /* ARGSUSED */
2209 static void
2210 termp_bk_post(DECL_ARGS)
2211 {
2212 
2213         if (MDOC_BODY == n->type)
2214                 p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
2215 }
2216 
2217 /* ARGSUSED */
2218 static void
2219 termp__t_post(DECL_ARGS)
2220 {
2221 
2222         /*
2223          * If we're in an `Rs' and there's a journal present, then quote
2224          * us instead of underlining us (for disambiguation).
2225          */
2226         if (n->parent && MDOC_Rs == n->parent->tok &&
2227                         n->parent->norm->Rs.quote_T)
2228                 termp_quote_post(p, pair, m, n);
2229 
2230         termp____post(p, pair, m, n);
2231 }
2232 
2233 /* ARGSUSED */
2234 static int
2235 termp__t_pre(DECL_ARGS)
2236 {
2237 
2238         /*
2239          * If we're in an `Rs' and there's a journal present, then quote
2240          * us instead of underlining us (for disambiguation).
2241          */
2242         if (n->parent && MDOC_Rs == n->parent->tok &&
2243                         n->parent->norm->Rs.quote_T)
2244                 return(termp_quote_pre(p, pair, m, n));
2245 
2246         term_fontpush(p, TERMFONT_UNDER);
2247         return(1);
2248 }
2249 
2250 /* ARGSUSED */
2251 static int
2252 termp_under_pre(DECL_ARGS)
2253 {
2254 
2255         term_fontpush(p, TERMFONT_UNDER);
2256         return(1);
2257 }