1 /*      $Id: mdoc_html.c,v 1.310 2018/07/27 17:49:31 schwarze Exp $ */
   2 /*
   3  * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
   4  * Copyright (c) 2014,2015,2016,2017,2018 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 AUTHORS DISCLAIM ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS 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 #include "config.h"
  19 
  20 #include <sys/types.h>
  21 
  22 #include <assert.h>
  23 #include <ctype.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <unistd.h>
  28 
  29 #include "mandoc_aux.h"
  30 #include "mandoc.h"
  31 #include "roff.h"
  32 #include "mdoc.h"
  33 #include "out.h"
  34 #include "html.h"
  35 #include "main.h"
  36 
  37 #define MDOC_ARGS         const struct roff_meta *meta, \
  38                           struct roff_node *n, \
  39                           struct html *h
  40 
  41 #ifndef MIN
  42 #define MIN(a,b)        ((/*CONSTCOND*/(a)<(b))?(a):(b))
  43 #endif
  44 
  45 struct  htmlmdoc {
  46         int             (*pre)(MDOC_ARGS);
  47         void            (*post)(MDOC_ARGS);
  48 };
  49 
  50 static  char             *cond_id(const struct roff_node *);
  51 static  void              print_mdoc_head(const struct roff_meta *,
  52                                 struct html *);
  53 static  void              print_mdoc_node(MDOC_ARGS);
  54 static  void              print_mdoc_nodelist(MDOC_ARGS);
  55 static  void              synopsis_pre(struct html *,
  56                                 const struct roff_node *);
  57 
  58 static  void              mdoc_root_post(const struct roff_meta *,
  59                                 struct html *);
  60 static  int               mdoc_root_pre(const struct roff_meta *,
  61                                 struct html *);
  62 
  63 static  void              mdoc__x_post(MDOC_ARGS);
  64 static  int               mdoc__x_pre(MDOC_ARGS);
  65 static  int               mdoc_ad_pre(MDOC_ARGS);
  66 static  int               mdoc_an_pre(MDOC_ARGS);
  67 static  int               mdoc_ap_pre(MDOC_ARGS);
  68 static  int               mdoc_ar_pre(MDOC_ARGS);
  69 static  int               mdoc_bd_pre(MDOC_ARGS);
  70 static  int               mdoc_bf_pre(MDOC_ARGS);
  71 static  void              mdoc_bk_post(MDOC_ARGS);
  72 static  int               mdoc_bk_pre(MDOC_ARGS);
  73 static  int               mdoc_bl_pre(MDOC_ARGS);
  74 static  int               mdoc_cd_pre(MDOC_ARGS);
  75 static  int               mdoc_cm_pre(MDOC_ARGS);
  76 static  int               mdoc_d1_pre(MDOC_ARGS);
  77 static  int               mdoc_dv_pre(MDOC_ARGS);
  78 static  int               mdoc_fa_pre(MDOC_ARGS);
  79 static  int               mdoc_fd_pre(MDOC_ARGS);
  80 static  int               mdoc_fl_pre(MDOC_ARGS);
  81 static  int               mdoc_fn_pre(MDOC_ARGS);
  82 static  int               mdoc_ft_pre(MDOC_ARGS);
  83 static  int               mdoc_em_pre(MDOC_ARGS);
  84 static  void              mdoc_eo_post(MDOC_ARGS);
  85 static  int               mdoc_eo_pre(MDOC_ARGS);
  86 static  int               mdoc_er_pre(MDOC_ARGS);
  87 static  int               mdoc_ev_pre(MDOC_ARGS);
  88 static  int               mdoc_ex_pre(MDOC_ARGS);
  89 static  void              mdoc_fo_post(MDOC_ARGS);
  90 static  int               mdoc_fo_pre(MDOC_ARGS);
  91 static  int               mdoc_ic_pre(MDOC_ARGS);
  92 static  int               mdoc_igndelim_pre(MDOC_ARGS);
  93 static  int               mdoc_in_pre(MDOC_ARGS);
  94 static  int               mdoc_it_pre(MDOC_ARGS);
  95 static  int               mdoc_lb_pre(MDOC_ARGS);
  96 static  int               mdoc_li_pre(MDOC_ARGS);
  97 static  int               mdoc_lk_pre(MDOC_ARGS);
  98 static  int               mdoc_mt_pre(MDOC_ARGS);
  99 static  int               mdoc_ms_pre(MDOC_ARGS);
 100 static  int               mdoc_nd_pre(MDOC_ARGS);
 101 static  int               mdoc_nm_pre(MDOC_ARGS);
 102 static  int               mdoc_no_pre(MDOC_ARGS);
 103 static  int               mdoc_ns_pre(MDOC_ARGS);
 104 static  int               mdoc_pa_pre(MDOC_ARGS);
 105 static  void              mdoc_pf_post(MDOC_ARGS);
 106 static  int               mdoc_pp_pre(MDOC_ARGS);
 107 static  void              mdoc_quote_post(MDOC_ARGS);
 108 static  int               mdoc_quote_pre(MDOC_ARGS);
 109 static  int               mdoc_rs_pre(MDOC_ARGS);
 110 static  int               mdoc_sh_pre(MDOC_ARGS);
 111 static  int               mdoc_skip_pre(MDOC_ARGS);
 112 static  int               mdoc_sm_pre(MDOC_ARGS);
 113 static  int               mdoc_ss_pre(MDOC_ARGS);
 114 static  int               mdoc_st_pre(MDOC_ARGS);
 115 static  int               mdoc_sx_pre(MDOC_ARGS);
 116 static  int               mdoc_sy_pre(MDOC_ARGS);
 117 static  int               mdoc_va_pre(MDOC_ARGS);
 118 static  int               mdoc_vt_pre(MDOC_ARGS);
 119 static  int               mdoc_xr_pre(MDOC_ARGS);
 120 static  int               mdoc_xx_pre(MDOC_ARGS);
 121 
 122 static  const struct htmlmdoc __mdocs[MDOC_MAX - MDOC_Dd] = {
 123         {NULL, NULL}, /* Dd */
 124         {NULL, NULL}, /* Dt */
 125         {NULL, NULL}, /* Os */
 126         {mdoc_sh_pre, NULL }, /* Sh */
 127         {mdoc_ss_pre, NULL }, /* Ss */
 128         {mdoc_pp_pre, NULL}, /* Pp */
 129         {mdoc_d1_pre, NULL}, /* D1 */
 130         {mdoc_d1_pre, NULL}, /* Dl */
 131         {mdoc_bd_pre, NULL}, /* Bd */
 132         {NULL, NULL}, /* Ed */
 133         {mdoc_bl_pre, NULL}, /* Bl */
 134         {NULL, NULL}, /* El */
 135         {mdoc_it_pre, NULL}, /* It */
 136         {mdoc_ad_pre, NULL}, /* Ad */
 137         {mdoc_an_pre, NULL}, /* An */
 138         {mdoc_ap_pre, NULL}, /* Ap */
 139         {mdoc_ar_pre, NULL}, /* Ar */
 140         {mdoc_cd_pre, NULL}, /* Cd */
 141         {mdoc_cm_pre, NULL}, /* Cm */
 142         {mdoc_dv_pre, NULL}, /* Dv */
 143         {mdoc_er_pre, NULL}, /* Er */
 144         {mdoc_ev_pre, NULL}, /* Ev */
 145         {mdoc_ex_pre, NULL}, /* Ex */
 146         {mdoc_fa_pre, NULL}, /* Fa */
 147         {mdoc_fd_pre, NULL}, /* Fd */
 148         {mdoc_fl_pre, NULL}, /* Fl */
 149         {mdoc_fn_pre, NULL}, /* Fn */
 150         {mdoc_ft_pre, NULL}, /* Ft */
 151         {mdoc_ic_pre, NULL}, /* Ic */
 152         {mdoc_in_pre, NULL}, /* In */
 153         {mdoc_li_pre, NULL}, /* Li */
 154         {mdoc_nd_pre, NULL}, /* Nd */
 155         {mdoc_nm_pre, NULL}, /* Nm */
 156         {mdoc_quote_pre, mdoc_quote_post}, /* Op */
 157         {mdoc_ft_pre, NULL}, /* Ot */
 158         {mdoc_pa_pre, NULL}, /* Pa */
 159         {mdoc_ex_pre, NULL}, /* Rv */
 160         {mdoc_st_pre, NULL}, /* St */
 161         {mdoc_va_pre, NULL}, /* Va */
 162         {mdoc_vt_pre, NULL}, /* Vt */
 163         {mdoc_xr_pre, NULL}, /* Xr */
 164         {mdoc__x_pre, mdoc__x_post}, /* %A */
 165         {mdoc__x_pre, mdoc__x_post}, /* %B */
 166         {mdoc__x_pre, mdoc__x_post}, /* %D */
 167         {mdoc__x_pre, mdoc__x_post}, /* %I */
 168         {mdoc__x_pre, mdoc__x_post}, /* %J */
 169         {mdoc__x_pre, mdoc__x_post}, /* %N */
 170         {mdoc__x_pre, mdoc__x_post}, /* %O */
 171         {mdoc__x_pre, mdoc__x_post}, /* %P */
 172         {mdoc__x_pre, mdoc__x_post}, /* %R */
 173         {mdoc__x_pre, mdoc__x_post}, /* %T */
 174         {mdoc__x_pre, mdoc__x_post}, /* %V */
 175         {NULL, NULL}, /* Ac */
 176         {mdoc_quote_pre, mdoc_quote_post}, /* Ao */
 177         {mdoc_quote_pre, mdoc_quote_post}, /* Aq */
 178         {mdoc_xx_pre, NULL}, /* At */
 179         {NULL, NULL}, /* Bc */
 180         {mdoc_bf_pre, NULL}, /* Bf */
 181         {mdoc_quote_pre, mdoc_quote_post}, /* Bo */
 182         {mdoc_quote_pre, mdoc_quote_post}, /* Bq */
 183         {mdoc_xx_pre, NULL}, /* Bsx */
 184         {mdoc_xx_pre, NULL}, /* Bx */
 185         {mdoc_skip_pre, NULL}, /* Db */
 186         {NULL, NULL}, /* Dc */
 187         {mdoc_quote_pre, mdoc_quote_post}, /* Do */
 188         {mdoc_quote_pre, mdoc_quote_post}, /* Dq */
 189         {NULL, NULL}, /* Ec */ /* FIXME: no space */
 190         {NULL, NULL}, /* Ef */
 191         {mdoc_em_pre, NULL}, /* Em */
 192         {mdoc_eo_pre, mdoc_eo_post}, /* Eo */
 193         {mdoc_xx_pre, NULL}, /* Fx */
 194         {mdoc_ms_pre, NULL}, /* Ms */
 195         {mdoc_no_pre, NULL}, /* No */
 196         {mdoc_ns_pre, NULL}, /* Ns */
 197         {mdoc_xx_pre, NULL}, /* Nx */
 198         {mdoc_xx_pre, NULL}, /* Ox */
 199         {NULL, NULL}, /* Pc */
 200         {mdoc_igndelim_pre, mdoc_pf_post}, /* Pf */
 201         {mdoc_quote_pre, mdoc_quote_post}, /* Po */
 202         {mdoc_quote_pre, mdoc_quote_post}, /* Pq */
 203         {NULL, NULL}, /* Qc */
 204         {mdoc_quote_pre, mdoc_quote_post}, /* Ql */
 205         {mdoc_quote_pre, mdoc_quote_post}, /* Qo */
 206         {mdoc_quote_pre, mdoc_quote_post}, /* Qq */
 207         {NULL, NULL}, /* Re */
 208         {mdoc_rs_pre, NULL}, /* Rs */
 209         {NULL, NULL}, /* Sc */
 210         {mdoc_quote_pre, mdoc_quote_post}, /* So */
 211         {mdoc_quote_pre, mdoc_quote_post}, /* Sq */
 212         {mdoc_sm_pre, NULL}, /* Sm */
 213         {mdoc_sx_pre, NULL}, /* Sx */
 214         {mdoc_sy_pre, NULL}, /* Sy */
 215         {NULL, NULL}, /* Tn */
 216         {mdoc_xx_pre, NULL}, /* Ux */
 217         {NULL, NULL}, /* Xc */
 218         {NULL, NULL}, /* Xo */
 219         {mdoc_fo_pre, mdoc_fo_post}, /* Fo */
 220         {NULL, NULL}, /* Fc */
 221         {mdoc_quote_pre, mdoc_quote_post}, /* Oo */
 222         {NULL, NULL}, /* Oc */
 223         {mdoc_bk_pre, mdoc_bk_post}, /* Bk */
 224         {NULL, NULL}, /* Ek */
 225         {NULL, NULL}, /* Bt */
 226         {NULL, NULL}, /* Hf */
 227         {mdoc_em_pre, NULL}, /* Fr */
 228         {NULL, NULL}, /* Ud */
 229         {mdoc_lb_pre, NULL}, /* Lb */
 230         {mdoc_pp_pre, NULL}, /* Lp */
 231         {mdoc_lk_pre, NULL}, /* Lk */
 232         {mdoc_mt_pre, NULL}, /* Mt */
 233         {mdoc_quote_pre, mdoc_quote_post}, /* Brq */
 234         {mdoc_quote_pre, mdoc_quote_post}, /* Bro */
 235         {NULL, NULL}, /* Brc */
 236         {mdoc__x_pre, mdoc__x_post}, /* %C */
 237         {mdoc_skip_pre, NULL}, /* Es */
 238         {mdoc_quote_pre, mdoc_quote_post}, /* En */
 239         {mdoc_xx_pre, NULL}, /* Dx */
 240         {mdoc__x_pre, mdoc__x_post}, /* %Q */
 241         {mdoc__x_pre, mdoc__x_post}, /* %U */
 242         {NULL, NULL}, /* Ta */
 243 };
 244 static  const struct htmlmdoc *const mdocs = __mdocs - MDOC_Dd;
 245 
 246 
 247 /*
 248  * See the same function in mdoc_term.c for documentation.
 249  */
 250 static void
 251 synopsis_pre(struct html *h, const struct roff_node *n)
 252 {
 253 
 254         if (NULL == n->prev || ! (NODE_SYNPRETTY & n->flags))
 255                 return;
 256 
 257         if (n->prev->tok == n->tok &&
 258             MDOC_Fo != n->tok &&
 259             MDOC_Ft != n->tok &&
 260             MDOC_Fn != n->tok) {
 261                 print_otag(h, TAG_BR, "");
 262                 return;
 263         }
 264 
 265         switch (n->prev->tok) {
 266         case MDOC_Fd:
 267         case MDOC_Fn:
 268         case MDOC_Fo:
 269         case MDOC_In:
 270         case MDOC_Vt:
 271                 print_paragraph(h);
 272                 break;
 273         case MDOC_Ft:
 274                 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
 275                         print_paragraph(h);
 276                         break;
 277                 }
 278                 /* FALLTHROUGH */
 279         default:
 280                 print_otag(h, TAG_BR, "");
 281                 break;
 282         }
 283 }
 284 
 285 void
 286 html_mdoc(void *arg, const struct roff_man *mdoc)
 287 {
 288         struct html             *h;
 289         struct roff_node        *n;
 290         struct tag              *t;
 291 
 292         h = (struct html *)arg;
 293         n = mdoc->first->child;
 294 
 295         if ((h->oflags & HTML_FRAGMENT) == 0) {
 296                 print_gen_decls(h);
 297                 print_otag(h, TAG_HTML, "");
 298                 if (n->type == ROFFT_COMMENT)
 299                         print_gen_comment(h, n);
 300                 t = print_otag(h, TAG_HEAD, "");
 301                 print_mdoc_head(&mdoc->meta, h);
 302                 print_tagq(h, t);
 303                 print_otag(h, TAG_BODY, "");
 304         }
 305 
 306         mdoc_root_pre(&mdoc->meta, h);
 307         t = print_otag(h, TAG_DIV, "c", "manual-text");
 308         print_mdoc_nodelist(&mdoc->meta, n, h);
 309         print_tagq(h, t);
 310         mdoc_root_post(&mdoc->meta, h);
 311         print_tagq(h, NULL);
 312 }
 313 
 314 static void
 315 print_mdoc_head(const struct roff_meta *meta, struct html *h)
 316 {
 317         char    *cp;
 318 
 319         print_gen_head(h);
 320 
 321         if (meta->arch != NULL && meta->msec != NULL)
 322                 mandoc_asprintf(&cp, "%s(%s) (%s)", meta->title,
 323                     meta->msec, meta->arch);
 324         else if (meta->msec != NULL)
 325                 mandoc_asprintf(&cp, "%s(%s)", meta->title, meta->msec);
 326         else if (meta->arch != NULL)
 327                 mandoc_asprintf(&cp, "%s (%s)", meta->title, meta->arch);
 328         else
 329                 cp = mandoc_strdup(meta->title);
 330 
 331         print_otag(h, TAG_TITLE, "");
 332         print_text(h, cp);
 333         free(cp);
 334 }
 335 
 336 static void
 337 print_mdoc_nodelist(MDOC_ARGS)
 338 {
 339 
 340         while (n != NULL) {
 341                 print_mdoc_node(meta, n, h);
 342                 n = n->next;
 343         }
 344 }
 345 
 346 static void
 347 print_mdoc_node(MDOC_ARGS)
 348 {
 349         int              child;
 350         struct tag      *t;
 351 
 352         if (n->type == ROFFT_COMMENT || n->flags & NODE_NOPRT)
 353                 return;
 354 
 355         child = 1;
 356         t = h->tag;
 357         n->flags &= ~NODE_ENDED;
 358 
 359         switch (n->type) {
 360         case ROFFT_TEXT:
 361                 /* No tables in this mode... */
 362                 assert(NULL == h->tblt);
 363 
 364                 /*
 365                  * Make sure that if we're in a literal mode already
 366                  * (i.e., within a <PRE>) don't print the newline.
 367                  */
 368                 if (*n->string == ' ' && n->flags & NODE_LINE &&
 369                     (h->flags & (HTML_LITERAL | HTML_NONEWLINE)) == 0)
 370                         print_otag(h, TAG_BR, "");
 371                 if (NODE_DELIMC & n->flags)
 372                         h->flags |= HTML_NOSPACE;
 373                 print_text(h, n->string);
 374                 if (NODE_DELIMO & n->flags)
 375                         h->flags |= HTML_NOSPACE;
 376                 return;
 377         case ROFFT_EQN:
 378                 print_eqn(h, n->eqn);
 379                 break;
 380         case ROFFT_TBL:
 381                 /*
 382                  * This will take care of initialising all of the table
 383                  * state data for the first table, then tearing it down
 384                  * for the last one.
 385                  */
 386                 print_tbl(h, n->span);
 387                 return;
 388         default:
 389                 /*
 390                  * Close out the current table, if it's open, and unset
 391                  * the "meta" table state.  This will be reopened on the
 392                  * next table element.
 393                  */
 394                 if (h->tblt != NULL) {
 395                         print_tblclose(h);
 396                         t = h->tag;
 397                 }
 398                 assert(h->tblt == NULL);
 399                 if (n->tok < ROFF_MAX) {
 400                         roff_html_pre(h, n);
 401                         child = 0;
 402                         break;
 403                 }
 404                 assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
 405                 if (mdocs[n->tok].pre != NULL &&
 406                     (n->end == ENDBODY_NOT || n->child != NULL))
 407                         child = (*mdocs[n->tok].pre)(meta, n, h);
 408                 break;
 409         }
 410 
 411         if (h->flags & HTML_KEEP && n->flags & NODE_LINE) {
 412                 h->flags &= ~HTML_KEEP;
 413                 h->flags |= HTML_PREKEEP;
 414         }
 415 
 416         if (child && n->child)
 417                 print_mdoc_nodelist(meta, n->child, h);
 418 
 419         print_stagq(h, t);
 420 
 421         switch (n->type) {
 422         case ROFFT_EQN:
 423                 break;
 424         default:
 425                 if (n->tok < ROFF_MAX ||
 426                     mdocs[n->tok].post == NULL ||
 427                     n->flags & NODE_ENDED)
 428                         break;
 429                 (*mdocs[n->tok].post)(meta, n, h);
 430                 if (n->end != ENDBODY_NOT)
 431                         n->body->flags |= NODE_ENDED;
 432                 break;
 433         }
 434 }
 435 
 436 static void
 437 mdoc_root_post(const struct roff_meta *meta, struct html *h)
 438 {
 439         struct tag      *t, *tt;
 440 
 441         t = print_otag(h, TAG_TABLE, "c", "foot");
 442         tt = print_otag(h, TAG_TR, "");
 443 
 444         print_otag(h, TAG_TD, "c", "foot-date");
 445         print_text(h, meta->date);
 446         print_stagq(h, tt);
 447 
 448         print_otag(h, TAG_TD, "c", "foot-os");
 449         print_text(h, meta->os);
 450         print_tagq(h, t);
 451 }
 452 
 453 static int
 454 mdoc_root_pre(const struct roff_meta *meta, struct html *h)
 455 {
 456         struct tag      *t, *tt;
 457         char            *volume, *title;
 458 
 459         if (NULL == meta->arch)
 460                 volume = mandoc_strdup(meta->vol);
 461         else
 462                 mandoc_asprintf(&volume, "%s (%s)",
 463                     meta->vol, meta->arch);
 464 
 465         if (NULL == meta->msec)
 466                 title = mandoc_strdup(meta->title);
 467         else
 468                 mandoc_asprintf(&title, "%s(%s)",
 469                     meta->title, meta->msec);
 470 
 471         t = print_otag(h, TAG_TABLE, "c", "head");
 472         tt = print_otag(h, TAG_TR, "");
 473 
 474         print_otag(h, TAG_TD, "c", "head-ltitle");
 475         print_text(h, title);
 476         print_stagq(h, tt);
 477 
 478         print_otag(h, TAG_TD, "c", "head-vol");
 479         print_text(h, volume);
 480         print_stagq(h, tt);
 481 
 482         print_otag(h, TAG_TD, "c", "head-rtitle");
 483         print_text(h, title);
 484         print_tagq(h, t);
 485 
 486         free(title);
 487         free(volume);
 488         return 1;
 489 }
 490 
 491 static char *
 492 cond_id(const struct roff_node *n)
 493 {
 494         if (n->child != NULL &&
 495             n->child->type == ROFFT_TEXT &&
 496             (n->prev == NULL ||
 497              (n->prev->type == ROFFT_TEXT &&
 498               strcmp(n->prev->string, "|") == 0)) &&
 499             (n->parent->tok == MDOC_It ||
 500              (n->parent->tok == MDOC_Xo &&
 501               n->parent->parent->prev == NULL &&
 502               n->parent->parent->parent->tok == MDOC_It)))
 503                 return html_make_id(n, 1);
 504         return NULL;
 505 }
 506 
 507 static int
 508 mdoc_sh_pre(MDOC_ARGS)
 509 {
 510         char    *id;
 511 
 512         switch (n->type) {
 513         case ROFFT_HEAD:
 514                 id = html_make_id(n, 1);
 515                 print_otag(h, TAG_H1, "cTi", "Sh", id);
 516                 if (id != NULL)
 517                         print_otag(h, TAG_A, "chR", "permalink", id);
 518                 break;
 519         case ROFFT_BODY:
 520                 if (n->sec == SEC_AUTHORS)
 521                         h->flags &= ~(HTML_SPLIT|HTML_NOSPLIT);
 522                 break;
 523         default:
 524                 break;
 525         }
 526         return 1;
 527 }
 528 
 529 static int
 530 mdoc_ss_pre(MDOC_ARGS)
 531 {
 532         char    *id;
 533 
 534         if (n->type != ROFFT_HEAD)
 535                 return 1;
 536 
 537         id = html_make_id(n, 1);
 538         print_otag(h, TAG_H2, "cTi", "Ss", id);
 539         if (id != NULL)
 540                 print_otag(h, TAG_A, "chR", "permalink", id);
 541         return 1;
 542 }
 543 
 544 static int
 545 mdoc_fl_pre(MDOC_ARGS)
 546 {
 547         char    *id;
 548 
 549         if ((id = cond_id(n)) != NULL)
 550                 print_otag(h, TAG_A, "chR", "permalink", id);
 551         print_otag(h, TAG_CODE, "cTi", "Fl", id);
 552 
 553         print_text(h, "\\-");
 554         if (!(n->child == NULL &&
 555             (n->next == NULL ||
 556              n->next->type == ROFFT_TEXT ||
 557              n->next->flags & NODE_LINE)))
 558                 h->flags |= HTML_NOSPACE;
 559 
 560         return 1;
 561 }
 562 
 563 static int
 564 mdoc_cm_pre(MDOC_ARGS)
 565 {
 566         char    *id;
 567 
 568         if ((id = cond_id(n)) != NULL)
 569                 print_otag(h, TAG_A, "chR", "permalink", id);
 570         print_otag(h, TAG_CODE, "cTi", "Cm", id);
 571         return 1;
 572 }
 573 
 574 static int
 575 mdoc_nd_pre(MDOC_ARGS)
 576 {
 577         if (n->type != ROFFT_BODY)
 578                 return 1;
 579 
 580         print_text(h, "\\(em");
 581         /* Cannot use TAG_SPAN because it may contain blocks. */
 582         print_otag(h, TAG_DIV, "cT", "Nd");
 583         return 1;
 584 }
 585 
 586 static int
 587 mdoc_nm_pre(MDOC_ARGS)
 588 {
 589         switch (n->type) {
 590         case ROFFT_HEAD:
 591                 print_otag(h, TAG_TD, "");
 592                 /* FALLTHROUGH */
 593         case ROFFT_ELEM:
 594                 print_otag(h, TAG_CODE, "cT", "Nm");
 595                 return 1;
 596         case ROFFT_BODY:
 597                 print_otag(h, TAG_TD, "");
 598                 return 1;
 599         default:
 600                 break;
 601         }
 602         synopsis_pre(h, n);
 603         print_otag(h, TAG_TABLE, "c", "Nm");
 604         print_otag(h, TAG_TR, "");
 605         return 1;
 606 }
 607 
 608 static int
 609 mdoc_xr_pre(MDOC_ARGS)
 610 {
 611         if (NULL == n->child)
 612                 return 0;
 613 
 614         if (h->base_man)
 615                 print_otag(h, TAG_A, "cThM", "Xr",
 616                     n->child->string, n->child->next == NULL ?
 617                     NULL : n->child->next->string);
 618         else
 619                 print_otag(h, TAG_A, "cT", "Xr");
 620 
 621         n = n->child;
 622         print_text(h, n->string);
 623 
 624         if (NULL == (n = n->next))
 625                 return 0;
 626 
 627         h->flags |= HTML_NOSPACE;
 628         print_text(h, "(");
 629         h->flags |= HTML_NOSPACE;
 630         print_text(h, n->string);
 631         h->flags |= HTML_NOSPACE;
 632         print_text(h, ")");
 633         return 0;
 634 }
 635 
 636 static int
 637 mdoc_ns_pre(MDOC_ARGS)
 638 {
 639 
 640         if ( ! (NODE_LINE & n->flags))
 641                 h->flags |= HTML_NOSPACE;
 642         return 1;
 643 }
 644 
 645 static int
 646 mdoc_ar_pre(MDOC_ARGS)
 647 {
 648         print_otag(h, TAG_VAR, "cT", "Ar");
 649         return 1;
 650 }
 651 
 652 static int
 653 mdoc_xx_pre(MDOC_ARGS)
 654 {
 655         print_otag(h, TAG_SPAN, "c", "Ux");
 656         return 1;
 657 }
 658 
 659 static int
 660 mdoc_it_pre(MDOC_ARGS)
 661 {
 662         const struct roff_node  *bl;
 663         struct tag              *t;
 664         enum mdoc_list           type;
 665 
 666         bl = n->parent;
 667         while (bl->tok != MDOC_Bl)
 668                 bl = bl->parent;
 669         type = bl->norm->Bl.type;
 670 
 671         switch (type) {
 672         case LIST_bullet:
 673         case LIST_dash:
 674         case LIST_hyphen:
 675         case LIST_item:
 676         case LIST_enum:
 677                 switch (n->type) {
 678                 case ROFFT_HEAD:
 679                         return 0;
 680                 case ROFFT_BODY:
 681                         print_otag(h, TAG_LI, "");
 682                         break;
 683                 default:
 684                         break;
 685                 }
 686                 break;
 687         case LIST_diag:
 688         case LIST_hang:
 689         case LIST_inset:
 690         case LIST_ohang:
 691                 switch (n->type) {
 692                 case ROFFT_HEAD:
 693                         print_otag(h, TAG_DT, "");
 694                         break;
 695                 case ROFFT_BODY:
 696                         print_otag(h, TAG_DD, "");
 697                         break;
 698                 default:
 699                         break;
 700                 }
 701                 break;
 702         case LIST_tag:
 703                 switch (n->type) {
 704                 case ROFFT_HEAD:
 705                         if (h->style != NULL && !bl->norm->Bl.comp &&
 706                             (n->parent->prev == NULL ||
 707                              n->parent->prev->body == NULL ||
 708                              n->parent->prev->body->child != NULL)) {
 709                                 t = print_otag(h, TAG_DT, "");
 710                                 print_text(h, "\\ ");
 711                                 print_tagq(h, t);
 712                                 t = print_otag(h, TAG_DD, "");
 713                                 print_text(h, "\\ ");
 714                                 print_tagq(h, t);
 715                         }
 716                         print_otag(h, TAG_DT, "");
 717                         break;
 718                 case ROFFT_BODY:
 719                         if (n->child == NULL) {
 720                                 print_otag(h, TAG_DD, "s", "width", "auto");
 721                                 print_text(h, "\\ ");
 722                         } else
 723                                 print_otag(h, TAG_DD, "");
 724                         break;
 725                 default:
 726                         break;
 727                 }
 728                 break;
 729         case LIST_column:
 730                 switch (n->type) {
 731                 case ROFFT_HEAD:
 732                         break;
 733                 case ROFFT_BODY:
 734                         print_otag(h, TAG_TD, "");
 735                         break;
 736                 default:
 737                         print_otag(h, TAG_TR, "");
 738                 }
 739         default:
 740                 break;
 741         }
 742 
 743         return 1;
 744 }
 745 
 746 static int
 747 mdoc_bl_pre(MDOC_ARGS)
 748 {
 749         char             cattr[28];
 750         struct mdoc_bl  *bl;
 751         enum htmltag     elemtype;
 752 
 753         switch (n->type) {
 754         case ROFFT_BODY:
 755                 return 1;
 756         case ROFFT_HEAD:
 757                 return 0;
 758         default:
 759                 break;
 760         }
 761 
 762         bl = &n->norm->Bl;
 763         switch (bl->type) {
 764         case LIST_bullet:
 765                 elemtype = TAG_UL;
 766                 (void)strlcpy(cattr, "Bl-bullet", sizeof(cattr));
 767                 break;
 768         case LIST_dash:
 769         case LIST_hyphen:
 770                 elemtype = TAG_UL;
 771                 (void)strlcpy(cattr, "Bl-dash", sizeof(cattr));
 772                 break;
 773         case LIST_item:
 774                 elemtype = TAG_UL;
 775                 (void)strlcpy(cattr, "Bl-item", sizeof(cattr));
 776                 break;
 777         case LIST_enum:
 778                 elemtype = TAG_OL;
 779                 (void)strlcpy(cattr, "Bl-enum", sizeof(cattr));
 780                 break;
 781         case LIST_diag:
 782                 elemtype = TAG_DL;
 783                 (void)strlcpy(cattr, "Bl-diag", sizeof(cattr));
 784                 break;
 785         case LIST_hang:
 786                 elemtype = TAG_DL;
 787                 (void)strlcpy(cattr, "Bl-hang", sizeof(cattr));
 788                 break;
 789         case LIST_inset:
 790                 elemtype = TAG_DL;
 791                 (void)strlcpy(cattr, "Bl-inset", sizeof(cattr));
 792                 break;
 793         case LIST_ohang:
 794                 elemtype = TAG_DL;
 795                 (void)strlcpy(cattr, "Bl-ohang", sizeof(cattr));
 796                 break;
 797         case LIST_tag:
 798                 if (bl->offs)
 799                         print_otag(h, TAG_DIV, "c", "Bd-indent");
 800                 print_otag(h, TAG_DL, "c", bl->comp ?
 801                     "Bl-tag Bl-compact" : "Bl-tag");
 802                 return 1;
 803         case LIST_column:
 804                 elemtype = TAG_TABLE;
 805                 (void)strlcpy(cattr, "Bl-column", sizeof(cattr));
 806                 break;
 807         default:
 808                 abort();
 809         }
 810         if (bl->offs != NULL)
 811                 (void)strlcat(cattr, " Bd-indent", sizeof(cattr));
 812         if (bl->comp)
 813                 (void)strlcat(cattr, " Bl-compact", sizeof(cattr));
 814         print_otag(h, elemtype, "c", cattr);
 815         return 1;
 816 }
 817 
 818 static int
 819 mdoc_ex_pre(MDOC_ARGS)
 820 {
 821         if (n->prev)
 822                 print_otag(h, TAG_BR, "");
 823         return 1;
 824 }
 825 
 826 static int
 827 mdoc_st_pre(MDOC_ARGS)
 828 {
 829         print_otag(h, TAG_SPAN, "cT", "St");
 830         return 1;
 831 }
 832 
 833 static int
 834 mdoc_em_pre(MDOC_ARGS)
 835 {
 836         print_otag(h, TAG_I, "cT", "Em");
 837         return 1;
 838 }
 839 
 840 static int
 841 mdoc_d1_pre(MDOC_ARGS)
 842 {
 843         if (n->type != ROFFT_BLOCK)
 844                 return 1;
 845 
 846         print_otag(h, TAG_DIV, "c", "Bd Bd-indent");
 847 
 848         if (n->tok == MDOC_Dl)
 849                 print_otag(h, TAG_CODE, "c", "Li");
 850 
 851         return 1;
 852 }
 853 
 854 static int
 855 mdoc_sx_pre(MDOC_ARGS)
 856 {
 857         char    *id;
 858 
 859         id = html_make_id(n, 0);
 860         print_otag(h, TAG_A, "cThR", "Sx", id);
 861         free(id);
 862         return 1;
 863 }
 864 
 865 static int
 866 mdoc_bd_pre(MDOC_ARGS)
 867 {
 868         int                      comp, sv;
 869         struct roff_node        *nn;
 870 
 871         if (n->type == ROFFT_HEAD)
 872                 return 0;
 873 
 874         if (n->type == ROFFT_BLOCK) {
 875                 comp = n->norm->Bd.comp;
 876                 for (nn = n; nn && ! comp; nn = nn->parent) {
 877                         if (nn->type != ROFFT_BLOCK)
 878                                 continue;
 879                         if (MDOC_Ss == nn->tok || MDOC_Sh == nn->tok)
 880                                 comp = 1;
 881                         if (nn->prev)
 882                                 break;
 883                 }
 884                 if ( ! comp)
 885                         print_paragraph(h);
 886                 return 1;
 887         }
 888 
 889         /* Handle the -offset argument. */
 890 
 891         if (n->norm->Bd.offs == NULL ||
 892             ! strcmp(n->norm->Bd.offs, "left"))
 893                 print_otag(h, TAG_DIV, "c", "Bd");
 894         else
 895                 print_otag(h, TAG_DIV, "c", "Bd Bd-indent");
 896 
 897         if (n->norm->Bd.type != DISP_unfilled &&
 898             n->norm->Bd.type != DISP_literal)
 899                 return 1;
 900 
 901         print_otag(h, TAG_PRE, "c", "Li");
 902 
 903         /* This can be recursive: save & set our literal state. */
 904 
 905         sv = h->flags & HTML_LITERAL;
 906         h->flags |= HTML_LITERAL;
 907 
 908         for (nn = n->child; nn; nn = nn->next) {
 909                 print_mdoc_node(meta, nn, h);
 910                 /*
 911                  * If the printed node flushes its own line, then we
 912                  * needn't do it here as well.  This is hacky, but the
 913                  * notion of selective eoln whitespace is pretty dumb
 914                  * anyway, so don't sweat it.
 915                  */
 916                 switch (nn->tok) {
 917                 case ROFF_br:
 918                 case ROFF_sp:
 919                 case MDOC_Sm:
 920                 case MDOC_Bl:
 921                 case MDOC_D1:
 922                 case MDOC_Dl:
 923                 case MDOC_Lp:
 924                 case MDOC_Pp:
 925                         continue;
 926                 default:
 927                         break;
 928                 }
 929                 if (h->flags & HTML_NONEWLINE ||
 930                     (nn->next && ! (nn->next->flags & NODE_LINE)))
 931                         continue;
 932                 else if (nn->next)
 933                         print_text(h, "\n");
 934 
 935                 h->flags |= HTML_NOSPACE;
 936         }
 937 
 938         if (0 == sv)
 939                 h->flags &= ~HTML_LITERAL;
 940 
 941         return 0;
 942 }
 943 
 944 static int
 945 mdoc_pa_pre(MDOC_ARGS)
 946 {
 947         print_otag(h, TAG_SPAN, "cT", "Pa");
 948         return 1;
 949 }
 950 
 951 static int
 952 mdoc_ad_pre(MDOC_ARGS)
 953 {
 954         print_otag(h, TAG_SPAN, "c", "Ad");
 955         return 1;
 956 }
 957 
 958 static int
 959 mdoc_an_pre(MDOC_ARGS)
 960 {
 961         if (n->norm->An.auth == AUTH_split) {
 962                 h->flags &= ~HTML_NOSPLIT;
 963                 h->flags |= HTML_SPLIT;
 964                 return 0;
 965         }
 966         if (n->norm->An.auth == AUTH_nosplit) {
 967                 h->flags &= ~HTML_SPLIT;
 968                 h->flags |= HTML_NOSPLIT;
 969                 return 0;
 970         }
 971 
 972         if (h->flags & HTML_SPLIT)
 973                 print_otag(h, TAG_BR, "");
 974 
 975         if (n->sec == SEC_AUTHORS && ! (h->flags & HTML_NOSPLIT))
 976                 h->flags |= HTML_SPLIT;
 977 
 978         print_otag(h, TAG_SPAN, "cT", "An");
 979         return 1;
 980 }
 981 
 982 static int
 983 mdoc_cd_pre(MDOC_ARGS)
 984 {
 985         synopsis_pre(h, n);
 986         print_otag(h, TAG_CODE, "cT", "Cd");
 987         return 1;
 988 }
 989 
 990 static int
 991 mdoc_dv_pre(MDOC_ARGS)
 992 {
 993         char    *id;
 994 
 995         if ((id = cond_id(n)) != NULL)
 996                 print_otag(h, TAG_A, "chR", "permalink", id);
 997         print_otag(h, TAG_CODE, "cTi", "Dv", id);
 998         return 1;
 999 }
1000 
1001 static int
1002 mdoc_ev_pre(MDOC_ARGS)
1003 {
1004         char    *id;
1005 
1006         if ((id = cond_id(n)) != NULL)
1007                 print_otag(h, TAG_A, "chR", "permalink", id);
1008         print_otag(h, TAG_CODE, "cTi", "Ev", id);
1009         return 1;
1010 }
1011 
1012 static int
1013 mdoc_er_pre(MDOC_ARGS)
1014 {
1015         char    *id;
1016 
1017         id = n->sec == SEC_ERRORS &&
1018             (n->parent->tok == MDOC_It ||
1019              (n->parent->tok == MDOC_Bq &&
1020               n->parent->parent->parent->tok == MDOC_It)) ?
1021             html_make_id(n, 1) : NULL;
1022 
1023         if (id != NULL)
1024                 print_otag(h, TAG_A, "chR", "permalink", id);
1025         print_otag(h, TAG_CODE, "cTi", "Er", id);
1026         return 1;
1027 }
1028 
1029 static int
1030 mdoc_fa_pre(MDOC_ARGS)
1031 {
1032         const struct roff_node  *nn;
1033         struct tag              *t;
1034 
1035         if (n->parent->tok != MDOC_Fo) {
1036                 print_otag(h, TAG_VAR, "cT", "Fa");
1037                 return 1;
1038         }
1039 
1040         for (nn = n->child; nn; nn = nn->next) {
1041                 t = print_otag(h, TAG_VAR, "cT", "Fa");
1042                 print_text(h, nn->string);
1043                 print_tagq(h, t);
1044                 if (nn->next) {
1045                         h->flags |= HTML_NOSPACE;
1046                         print_text(h, ",");
1047                 }
1048         }
1049 
1050         if (n->child && n->next && n->next->tok == MDOC_Fa) {
1051                 h->flags |= HTML_NOSPACE;
1052                 print_text(h, ",");
1053         }
1054 
1055         return 0;
1056 }
1057 
1058 static int
1059 mdoc_fd_pre(MDOC_ARGS)
1060 {
1061         struct tag      *t;
1062         char            *buf, *cp;
1063 
1064         synopsis_pre(h, n);
1065 
1066         if (NULL == (n = n->child))
1067                 return 0;
1068 
1069         assert(n->type == ROFFT_TEXT);
1070 
1071         if (strcmp(n->string, "#include")) {
1072                 print_otag(h, TAG_CODE, "cT", "Fd");
1073                 return 1;
1074         }
1075 
1076         print_otag(h, TAG_CODE, "cT", "In");
1077         print_text(h, n->string);
1078 
1079         if (NULL != (n = n->next)) {
1080                 assert(n->type == ROFFT_TEXT);
1081 
1082                 if (h->base_includes) {
1083                         cp = n->string;
1084                         if (*cp == '<' || *cp == '"')
1085                                 cp++;
1086                         buf = mandoc_strdup(cp);
1087                         cp = strchr(buf, '\0') - 1;
1088                         if (cp >= buf && (*cp == '>' || *cp == '"'))
1089                                 *cp = '\0';
1090                         t = print_otag(h, TAG_A, "cThI", "In", buf);
1091                         free(buf);
1092                 } else
1093                         t = print_otag(h, TAG_A, "cT", "In");
1094 
1095                 print_text(h, n->string);
1096                 print_tagq(h, t);
1097 
1098                 n = n->next;
1099         }
1100 
1101         for ( ; n; n = n->next) {
1102                 assert(n->type == ROFFT_TEXT);
1103                 print_text(h, n->string);
1104         }
1105 
1106         return 0;
1107 }
1108 
1109 static int
1110 mdoc_vt_pre(MDOC_ARGS)
1111 {
1112         if (n->type == ROFFT_BLOCK) {
1113                 synopsis_pre(h, n);
1114                 return 1;
1115         } else if (n->type == ROFFT_ELEM) {
1116                 synopsis_pre(h, n);
1117         } else if (n->type == ROFFT_HEAD)
1118                 return 0;
1119 
1120         print_otag(h, TAG_VAR, "cT", "Vt");
1121         return 1;
1122 }
1123 
1124 static int
1125 mdoc_ft_pre(MDOC_ARGS)
1126 {
1127         synopsis_pre(h, n);
1128         print_otag(h, TAG_VAR, "cT", "Ft");
1129         return 1;
1130 }
1131 
1132 static int
1133 mdoc_fn_pre(MDOC_ARGS)
1134 {
1135         struct tag      *t;
1136         char             nbuf[BUFSIZ];
1137         const char      *sp, *ep;
1138         int              sz, pretty;
1139 
1140         pretty = NODE_SYNPRETTY & n->flags;
1141         synopsis_pre(h, n);
1142 
1143         /* Split apart into type and name. */
1144         assert(n->child->string);
1145         sp = n->child->string;
1146 
1147         ep = strchr(sp, ' ');
1148         if (NULL != ep) {
1149                 t = print_otag(h, TAG_VAR, "cT", "Ft");
1150 
1151                 while (ep) {
1152                         sz = MIN((int)(ep - sp), BUFSIZ - 1);
1153                         (void)memcpy(nbuf, sp, (size_t)sz);
1154                         nbuf[sz] = '\0';
1155                         print_text(h, nbuf);
1156                         sp = ++ep;
1157                         ep = strchr(sp, ' ');
1158                 }
1159                 print_tagq(h, t);
1160         }
1161 
1162         t = print_otag(h, TAG_CODE, "cT", "Fn");
1163 
1164         if (sp)
1165                 print_text(h, sp);
1166 
1167         print_tagq(h, t);
1168 
1169         h->flags |= HTML_NOSPACE;
1170         print_text(h, "(");
1171         h->flags |= HTML_NOSPACE;
1172 
1173         for (n = n->child->next; n; n = n->next) {
1174                 if (NODE_SYNPRETTY & n->flags)
1175                         t = print_otag(h, TAG_VAR, "cTs", "Fa",
1176                             "white-space", "nowrap");
1177                 else
1178                         t = print_otag(h, TAG_VAR, "cT", "Fa");
1179                 print_text(h, n->string);
1180                 print_tagq(h, t);
1181                 if (n->next) {
1182                         h->flags |= HTML_NOSPACE;
1183                         print_text(h, ",");
1184                 }
1185         }
1186 
1187         h->flags |= HTML_NOSPACE;
1188         print_text(h, ")");
1189 
1190         if (pretty) {
1191                 h->flags |= HTML_NOSPACE;
1192                 print_text(h, ";");
1193         }
1194 
1195         return 0;
1196 }
1197 
1198 static int
1199 mdoc_sm_pre(MDOC_ARGS)
1200 {
1201 
1202         if (NULL == n->child)
1203                 h->flags ^= HTML_NONOSPACE;
1204         else if (0 == strcmp("on", n->child->string))
1205                 h->flags &= ~HTML_NONOSPACE;
1206         else
1207                 h->flags |= HTML_NONOSPACE;
1208 
1209         if ( ! (HTML_NONOSPACE & h->flags))
1210                 h->flags &= ~HTML_NOSPACE;
1211 
1212         return 0;
1213 }
1214 
1215 static int
1216 mdoc_skip_pre(MDOC_ARGS)
1217 {
1218 
1219         return 0;
1220 }
1221 
1222 static int
1223 mdoc_pp_pre(MDOC_ARGS)
1224 {
1225 
1226         print_paragraph(h);
1227         return 0;
1228 }
1229 
1230 static int
1231 mdoc_lk_pre(MDOC_ARGS)
1232 {
1233         const struct roff_node *link, *descr, *punct;
1234         struct tag      *t;
1235 
1236         if ((link = n->child) == NULL)
1237                 return 0;
1238 
1239         /* Find beginning of trailing punctuation. */
1240         punct = n->last;
1241         while (punct != link && punct->flags & NODE_DELIMC)
1242                 punct = punct->prev;
1243         punct = punct->next;
1244 
1245         /* Link target and link text. */
1246         descr = link->next;
1247         if (descr == punct)
1248                 descr = link;  /* no text */
1249         t = print_otag(h, TAG_A, "cTh", "Lk", link->string);
1250         do {
1251                 if (descr->flags & (NODE_DELIMC | NODE_DELIMO))
1252                         h->flags |= HTML_NOSPACE;
1253                 print_text(h, descr->string);
1254                 descr = descr->next;
1255         } while (descr != punct);
1256         print_tagq(h, t);
1257 
1258         /* Trailing punctuation. */
1259         while (punct != NULL) {
1260                 h->flags |= HTML_NOSPACE;
1261                 print_text(h, punct->string);
1262                 punct = punct->next;
1263         }
1264         return 0;
1265 }
1266 
1267 static int
1268 mdoc_mt_pre(MDOC_ARGS)
1269 {
1270         struct tag      *t;
1271         char            *cp;
1272 
1273         for (n = n->child; n; n = n->next) {
1274                 assert(n->type == ROFFT_TEXT);
1275 
1276                 mandoc_asprintf(&cp, "mailto:%s", n->string);
1277                 t = print_otag(h, TAG_A, "cTh", "Mt", cp);
1278                 print_text(h, n->string);
1279                 print_tagq(h, t);
1280                 free(cp);
1281         }
1282 
1283         return 0;
1284 }
1285 
1286 static int
1287 mdoc_fo_pre(MDOC_ARGS)
1288 {
1289         struct tag      *t;
1290 
1291         if (n->type == ROFFT_BODY) {
1292                 h->flags |= HTML_NOSPACE;
1293                 print_text(h, "(");
1294                 h->flags |= HTML_NOSPACE;
1295                 return 1;
1296         } else if (n->type == ROFFT_BLOCK) {
1297                 synopsis_pre(h, n);
1298                 return 1;
1299         }
1300 
1301         if (n->child == NULL)
1302                 return 0;
1303 
1304         assert(n->child->string);
1305         t = print_otag(h, TAG_CODE, "cT", "Fn");
1306         print_text(h, n->child->string);
1307         print_tagq(h, t);
1308         return 0;
1309 }
1310 
1311 static void
1312 mdoc_fo_post(MDOC_ARGS)
1313 {
1314 
1315         if (n->type != ROFFT_BODY)
1316                 return;
1317         h->flags |= HTML_NOSPACE;
1318         print_text(h, ")");
1319         h->flags |= HTML_NOSPACE;
1320         print_text(h, ";");
1321 }
1322 
1323 static int
1324 mdoc_in_pre(MDOC_ARGS)
1325 {
1326         struct tag      *t;
1327 
1328         synopsis_pre(h, n);
1329         print_otag(h, TAG_CODE, "cT", "In");
1330 
1331         /*
1332          * The first argument of the `In' gets special treatment as
1333          * being a linked value.  Subsequent values are printed
1334          * afterward.  groff does similarly.  This also handles the case
1335          * of no children.
1336          */
1337 
1338         if (NODE_SYNPRETTY & n->flags && NODE_LINE & n->flags)
1339                 print_text(h, "#include");
1340 
1341         print_text(h, "<");
1342         h->flags |= HTML_NOSPACE;
1343 
1344         if (NULL != (n = n->child)) {
1345                 assert(n->type == ROFFT_TEXT);
1346 
1347                 if (h->base_includes)
1348                         t = print_otag(h, TAG_A, "cThI", "In", n->string);
1349                 else
1350                         t = print_otag(h, TAG_A, "cT", "In");
1351                 print_text(h, n->string);
1352                 print_tagq(h, t);
1353 
1354                 n = n->next;
1355         }
1356 
1357         h->flags |= HTML_NOSPACE;
1358         print_text(h, ">");
1359 
1360         for ( ; n; n = n->next) {
1361                 assert(n->type == ROFFT_TEXT);
1362                 print_text(h, n->string);
1363         }
1364 
1365         return 0;
1366 }
1367 
1368 static int
1369 mdoc_ic_pre(MDOC_ARGS)
1370 {
1371         char    *id;
1372 
1373         if ((id = cond_id(n)) != NULL)
1374                 print_otag(h, TAG_A, "chR", "permalink", id);
1375         print_otag(h, TAG_CODE, "cTi", "Ic", id);
1376         return 1;
1377 }
1378 
1379 static int
1380 mdoc_va_pre(MDOC_ARGS)
1381 {
1382         print_otag(h, TAG_VAR, "cT", "Va");
1383         return 1;
1384 }
1385 
1386 static int
1387 mdoc_ap_pre(MDOC_ARGS)
1388 {
1389 
1390         h->flags |= HTML_NOSPACE;
1391         print_text(h, "\\(aq");
1392         h->flags |= HTML_NOSPACE;
1393         return 1;
1394 }
1395 
1396 static int
1397 mdoc_bf_pre(MDOC_ARGS)
1398 {
1399         const char      *cattr;
1400 
1401         if (n->type == ROFFT_HEAD)
1402                 return 0;
1403         else if (n->type != ROFFT_BODY)
1404                 return 1;
1405 
1406         if (FONT_Em == n->norm->Bf.font)
1407                 cattr = "Bf Em";
1408         else if (FONT_Sy == n->norm->Bf.font)
1409                 cattr = "Bf Sy";
1410         else if (FONT_Li == n->norm->Bf.font)
1411                 cattr = "Bf Li";
1412         else
1413                 cattr = "Bf No";
1414 
1415         /* Cannot use TAG_SPAN because it may contain blocks. */
1416         print_otag(h, TAG_DIV, "c", cattr);
1417         return 1;
1418 }
1419 
1420 static int
1421 mdoc_ms_pre(MDOC_ARGS)
1422 {
1423         char *id;
1424 
1425         if ((id = cond_id(n)) != NULL)
1426                 print_otag(h, TAG_A, "chR", "permalink", id);
1427         print_otag(h, TAG_SPAN, "cTi", "Ms", id);
1428         return 1;
1429 }
1430 
1431 static int
1432 mdoc_igndelim_pre(MDOC_ARGS)
1433 {
1434 
1435         h->flags |= HTML_IGNDELIM;
1436         return 1;
1437 }
1438 
1439 static void
1440 mdoc_pf_post(MDOC_ARGS)
1441 {
1442 
1443         if ( ! (n->next == NULL || n->next->flags & NODE_LINE))
1444                 h->flags |= HTML_NOSPACE;
1445 }
1446 
1447 static int
1448 mdoc_rs_pre(MDOC_ARGS)
1449 {
1450         if (n->type != ROFFT_BLOCK)
1451                 return 1;
1452 
1453         if (n->prev && SEC_SEE_ALSO == n->sec)
1454                 print_paragraph(h);
1455 
1456         print_otag(h, TAG_CITE, "cT", "Rs");
1457         return 1;
1458 }
1459 
1460 static int
1461 mdoc_no_pre(MDOC_ARGS)
1462 {
1463         char *id;
1464 
1465         if ((id = cond_id(n)) != NULL)
1466                 print_otag(h, TAG_A, "chR", "permalink", id);
1467         print_otag(h, TAG_SPAN, "ci", "No", id);
1468         return 1;
1469 }
1470 
1471 static int
1472 mdoc_li_pre(MDOC_ARGS)
1473 {
1474         char    *id;
1475 
1476         if ((id = cond_id(n)) != NULL)
1477                 print_otag(h, TAG_A, "chR", "permalink", id);
1478         print_otag(h, TAG_CODE, "ci", "Li", id);
1479         return 1;
1480 }
1481 
1482 static int
1483 mdoc_sy_pre(MDOC_ARGS)
1484 {
1485         print_otag(h, TAG_B, "cT", "Sy");
1486         return 1;
1487 }
1488 
1489 static int
1490 mdoc_lb_pre(MDOC_ARGS)
1491 {
1492         if (SEC_LIBRARY == n->sec && NODE_LINE & n->flags && n->prev)
1493                 print_otag(h, TAG_BR, "");
1494 
1495         print_otag(h, TAG_SPAN, "cT", "Lb");
1496         return 1;
1497 }
1498 
1499 static int
1500 mdoc__x_pre(MDOC_ARGS)
1501 {
1502         const char      *cattr;
1503         enum htmltag     t;
1504 
1505         t = TAG_SPAN;
1506 
1507         switch (n->tok) {
1508         case MDOC__A:
1509                 cattr = "RsA";
1510                 if (n->prev && MDOC__A == n->prev->tok)
1511                         if (NULL == n->next || MDOC__A != n->next->tok)
1512                                 print_text(h, "and");
1513                 break;
1514         case MDOC__B:
1515                 t = TAG_I;
1516                 cattr = "RsB";
1517                 break;
1518         case MDOC__C:
1519                 cattr = "RsC";
1520                 break;
1521         case MDOC__D:
1522                 cattr = "RsD";
1523                 break;
1524         case MDOC__I:
1525                 t = TAG_I;
1526                 cattr = "RsI";
1527                 break;
1528         case MDOC__J:
1529                 t = TAG_I;
1530                 cattr = "RsJ";
1531                 break;
1532         case MDOC__N:
1533                 cattr = "RsN";
1534                 break;
1535         case MDOC__O:
1536                 cattr = "RsO";
1537                 break;
1538         case MDOC__P:
1539                 cattr = "RsP";
1540                 break;
1541         case MDOC__Q:
1542                 cattr = "RsQ";
1543                 break;
1544         case MDOC__R:
1545                 cattr = "RsR";
1546                 break;
1547         case MDOC__T:
1548                 cattr = "RsT";
1549                 break;
1550         case MDOC__U:
1551                 print_otag(h, TAG_A, "ch", "RsU", n->child->string);
1552                 return 1;
1553         case MDOC__V:
1554                 cattr = "RsV";
1555                 break;
1556         default:
1557                 abort();
1558         }
1559 
1560         print_otag(h, t, "c", cattr);
1561         return 1;
1562 }
1563 
1564 static void
1565 mdoc__x_post(MDOC_ARGS)
1566 {
1567 
1568         if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
1569                 if (NULL == n->next->next || MDOC__A != n->next->next->tok)
1570                         if (NULL == n->prev || MDOC__A != n->prev->tok)
1571                                 return;
1572 
1573         /* TODO: %U */
1574 
1575         if (NULL == n->parent || MDOC_Rs != n->parent->tok)
1576                 return;
1577 
1578         h->flags |= HTML_NOSPACE;
1579         print_text(h, n->next ? "," : ".");
1580 }
1581 
1582 static int
1583 mdoc_bk_pre(MDOC_ARGS)
1584 {
1585 
1586         switch (n->type) {
1587         case ROFFT_BLOCK:
1588                 break;
1589         case ROFFT_HEAD:
1590                 return 0;
1591         case ROFFT_BODY:
1592                 if (n->parent->args != NULL || n->prev->child == NULL)
1593                         h->flags |= HTML_PREKEEP;
1594                 break;
1595         default:
1596                 abort();
1597         }
1598 
1599         return 1;
1600 }
1601 
1602 static void
1603 mdoc_bk_post(MDOC_ARGS)
1604 {
1605 
1606         if (n->type == ROFFT_BODY)
1607                 h->flags &= ~(HTML_KEEP | HTML_PREKEEP);
1608 }
1609 
1610 static int
1611 mdoc_quote_pre(MDOC_ARGS)
1612 {
1613         if (n->type != ROFFT_BODY)
1614                 return 1;
1615 
1616         switch (n->tok) {
1617         case MDOC_Ao:
1618         case MDOC_Aq:
1619                 print_text(h, n->child != NULL && n->child->next == NULL &&
1620                     n->child->tok == MDOC_Mt ?  "<" : "\\(la");
1621                 break;
1622         case MDOC_Bro:
1623         case MDOC_Brq:
1624                 print_text(h, "\\(lC");
1625                 break;
1626         case MDOC_Bo:
1627         case MDOC_Bq:
1628                 print_text(h, "\\(lB");
1629                 break;
1630         case MDOC_Oo:
1631         case MDOC_Op:
1632                 print_text(h, "\\(lB");
1633                 h->flags |= HTML_NOSPACE;
1634                 /* Cannot use TAG_SPAN because it may contain blocks. */
1635                 print_otag(h, TAG_IDIV, "c", "Op");
1636                 break;
1637         case MDOC_En:
1638                 if (NULL == n->norm->Es ||
1639                     NULL == n->norm->Es->child)
1640                         return 1;
1641                 print_text(h, n->norm->Es->child->string);
1642                 break;
1643         case MDOC_Do:
1644         case MDOC_Dq:
1645         case MDOC_Qo:
1646         case MDOC_Qq:
1647                 print_text(h, "\\(lq");
1648                 break;
1649         case MDOC_Po:
1650         case MDOC_Pq:
1651                 print_text(h, "(");
1652                 break;
1653         case MDOC_Ql:
1654                 print_text(h, "\\(oq");
1655                 h->flags |= HTML_NOSPACE;
1656                 print_otag(h, TAG_CODE, "c", "Li");
1657                 break;
1658         case MDOC_So:
1659         case MDOC_Sq:
1660                 print_text(h, "\\(oq");
1661                 break;
1662         default:
1663                 abort();
1664         }
1665 
1666         h->flags |= HTML_NOSPACE;
1667         return 1;
1668 }
1669 
1670 static void
1671 mdoc_quote_post(MDOC_ARGS)
1672 {
1673 
1674         if (n->type != ROFFT_BODY && n->type != ROFFT_ELEM)
1675                 return;
1676 
1677         h->flags |= HTML_NOSPACE;
1678 
1679         switch (n->tok) {
1680         case MDOC_Ao:
1681         case MDOC_Aq:
1682                 print_text(h, n->child != NULL && n->child->next == NULL &&
1683                     n->child->tok == MDOC_Mt ?  ">" : "\\(ra");
1684                 break;
1685         case MDOC_Bro:
1686         case MDOC_Brq:
1687                 print_text(h, "\\(rC");
1688                 break;
1689         case MDOC_Oo:
1690         case MDOC_Op:
1691         case MDOC_Bo:
1692         case MDOC_Bq:
1693                 print_text(h, "\\(rB");
1694                 break;
1695         case MDOC_En:
1696                 if (n->norm->Es == NULL ||
1697                     n->norm->Es->child == NULL ||
1698                     n->norm->Es->child->next == NULL)
1699                         h->flags &= ~HTML_NOSPACE;
1700                 else
1701                         print_text(h, n->norm->Es->child->next->string);
1702                 break;
1703         case MDOC_Qo:
1704         case MDOC_Qq:
1705         case MDOC_Do:
1706         case MDOC_Dq:
1707                 print_text(h, "\\(rq");
1708                 break;
1709         case MDOC_Po:
1710         case MDOC_Pq:
1711                 print_text(h, ")");
1712                 break;
1713         case MDOC_Ql:
1714         case MDOC_So:
1715         case MDOC_Sq:
1716                 print_text(h, "\\(cq");
1717                 break;
1718         default:
1719                 abort();
1720         }
1721 }
1722 
1723 static int
1724 mdoc_eo_pre(MDOC_ARGS)
1725 {
1726 
1727         if (n->type != ROFFT_BODY)
1728                 return 1;
1729 
1730         if (n->end == ENDBODY_NOT &&
1731             n->parent->head->child == NULL &&
1732             n->child != NULL &&
1733             n->child->end != ENDBODY_NOT)
1734                 print_text(h, "\\&");
1735         else if (n->end != ENDBODY_NOT ? n->child != NULL :
1736             n->parent->head->child != NULL && (n->child != NULL ||
1737             (n->parent->tail != NULL && n->parent->tail->child != NULL)))
1738                 h->flags |= HTML_NOSPACE;
1739         return 1;
1740 }
1741 
1742 static void
1743 mdoc_eo_post(MDOC_ARGS)
1744 {
1745         int      body, tail;
1746 
1747         if (n->type != ROFFT_BODY)
1748                 return;
1749 
1750         if (n->end != ENDBODY_NOT) {
1751                 h->flags &= ~HTML_NOSPACE;
1752                 return;
1753         }
1754 
1755         body = n->child != NULL || n->parent->head->child != NULL;
1756         tail = n->parent->tail != NULL && n->parent->tail->child != NULL;
1757 
1758         if (body && tail)
1759                 h->flags |= HTML_NOSPACE;
1760         else if ( ! tail)
1761                 h->flags &= ~HTML_NOSPACE;
1762 }