contrib/mdocml/man_html.c

   1 /*      $Id: man_html.c,v 1.90 2013/10/17 20:54:58 schwarze Exp $ */
   2 /*
   3  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
   4  * Copyright (c) 2013 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 <stdio.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29
  30 #include "mandoc.h"
  31 #include "out.h"
  32 #include "html.h"
  33 #include "man.h"
  34 #include "main.h"
  35
  36 /* TODO: preserve ident widths. */
  37 /* FIXME: have PD set the default vspace width. */
  38
  39 #define INDENT            5
  40
  41 #define MAN_ARGS          const struct man_meta *man, \
  42                           const struct man_node *n, \
  43                           struct mhtml *mh, \
  44                           struct html *h
  45
  46 struct  mhtml {
  47         int               fl;
  48 #define MANH_LITERAL     (1 << 0) /* literal context */
  49 };
  50
  51 struct  htmlman {
  52         int             (*pre)(MAN_ARGS);
  53         int             (*post)(MAN_ARGS);
  54 };
  55
  56 static  void              print_bvspace(struct html *,
  57                                 const struct man_node *);
  58 static  void              print_man(MAN_ARGS);
  59 static  void              print_man_head(MAN_ARGS);
  60 static  void              print_man_nodelist(MAN_ARGS);
  61 static  void              print_man_node(MAN_ARGS);
  62 static  int               a2width(const struct man_node *,
  63                                 struct roffsu *);
  64 static  int               man_B_pre(MAN_ARGS);
  65 static  int               man_HP_pre(MAN_ARGS);
  66 static  int               man_IP_pre(MAN_ARGS);
  67 static  int               man_I_pre(MAN_ARGS);
  68 static  int               man_OP_pre(MAN_ARGS);
  69 static  int               man_PP_pre(MAN_ARGS);
  70 static  int               man_RS_pre(MAN_ARGS);
  71 static  int               man_SH_pre(MAN_ARGS);
  72 static  int               man_SM_pre(MAN_ARGS);
  73 static  int               man_SS_pre(MAN_ARGS);
  74 static  int               man_UR_pre(MAN_ARGS);
  75 static  int               man_alt_pre(MAN_ARGS);
  76 static  int               man_br_pre(MAN_ARGS);
  77 static  int               man_ign_pre(MAN_ARGS);
  78 static  int               man_in_pre(MAN_ARGS);
  79 static  int               man_literal_pre(MAN_ARGS);
  80 static  void              man_root_post(MAN_ARGS);
  81 static  void              man_root_pre(MAN_ARGS);
  82
  83 static  const struct htmlman mans[MAN_MAX] = {
  84         { man_br_pre, NULL }, /* br */
  85         { NULL, NULL }, /* TH */
  86         { man_SH_pre, NULL }, /* SH */
  87         { man_SS_pre, NULL }, /* SS */
  88         { man_IP_pre, NULL }, /* TP */
  89         { man_PP_pre, NULL }, /* LP */
  90         { man_PP_pre, NULL }, /* PP */
  91         { man_PP_pre, NULL }, /* P */
  92         { man_IP_pre, NULL }, /* IP */
  93         { man_HP_pre, NULL }, /* HP */
  94         { man_SM_pre, NULL }, /* SM */
  95         { man_SM_pre, NULL }, /* SB */
  96         { man_alt_pre, NULL }, /* BI */
  97         { man_alt_pre, NULL }, /* IB */
  98         { man_alt_pre, NULL }, /* BR */
  99         { man_alt_pre, NULL }, /* RB */
 100         { NULL, NULL }, /* R */
 101         { man_B_pre, NULL }, /* B */
 102         { man_I_pre, NULL }, /* I */
 103         { man_alt_pre, NULL }, /* IR */
 104         { man_alt_pre, NULL }, /* RI */
 105         { man_ign_pre, NULL }, /* na */
 106         { man_br_pre, NULL }, /* sp */
 107         { man_literal_pre, NULL }, /* nf */
 108         { man_literal_pre, NULL }, /* fi */
 109         { NULL, NULL }, /* RE */
 110         { man_RS_pre, NULL }, /* RS */
 111         { man_ign_pre, NULL }, /* DT */
 112         { man_ign_pre, NULL }, /* UC */
 113         { man_ign_pre, NULL }, /* PD */
 114         { man_ign_pre, NULL }, /* AT */
 115         { man_in_pre, NULL }, /* in */
 116         { man_ign_pre, NULL }, /* ft */
 117         { man_OP_pre, NULL }, /* OP */
 118         { man_literal_pre, NULL }, /* EX */
 119         { man_literal_pre, NULL }, /* EE */
 120         { man_UR_pre, NULL }, /* UR */
 121         { NULL, NULL }, /* UE */
 122 };
 123
 124 /*
 125  * Printing leading vertical space before a block.
 126  * This is used for the paragraph macros.
 127  * The rules are pretty simple, since there's very little nesting going
 128  * on here.  Basically, if we're the first within another block (SS/SH),
 129  * then don't emit vertical space.  If we are (RS), then do.  If not the
 130  * first, print it.
 131  */
 132 static void
 133 print_bvspace(struct html *h, const struct man_node *n)
 134 {
 135
 136         if (n->body && n->body->child)
 137                 if (MAN_TBL == n->body->child->type)
 138                         return;
 139
 140         if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
 141                 if (NULL == n->prev)
 142                         return;
 143
 144         print_otag(h, TAG_P, 0, NULL);
 145 }
 146
 147 void
 148 html_man(void *arg, const struct man *man)
 149 {
 150         struct mhtml     mh;
 151
 152         memset(&mh, 0, sizeof(struct mhtml));
 153         print_man(man_meta(man), man_node(man), &mh, (struct html *)arg);
 154         putchar('\n');
 155 }
 156
 157 static void
 158 print_man(MAN_ARGS)
 159 {
 160         struct tag      *t, *tt;
 161         struct htmlpair  tag;
 162
 163         PAIR_CLASS_INIT(&tag, "mandoc");
 164
 165         if ( ! (HTML_FRAGMENT & h->oflags)) {
 166                 print_gen_decls(h);
 167                 t = print_otag(h, TAG_HTML, 0, NULL);
 168                 tt = print_otag(h, TAG_HEAD, 0, NULL);
 169                 print_man_head(man, n, mh, h);
 170                 print_tagq(h, tt);
 171                 print_otag(h, TAG_BODY, 0, NULL);
 172                 print_otag(h, TAG_DIV, 1, &tag);
 173         } else
 174                 t = print_otag(h, TAG_DIV, 1, &tag);
 175
 176         print_man_nodelist(man, n, mh, h);
 177         print_tagq(h, t);
 178 }
 179
 180
 181 /* ARGSUSED */
 182 static void
 183 print_man_head(MAN_ARGS)
 184 {
 185
 186         print_gen_head(h);
 187         assert(man->title);
 188         assert(man->msec);
 189         bufcat_fmt(h, "%s(%s)", man->title, man->msec);
 190         print_otag(h, TAG_TITLE, 0, NULL);
 191         print_text(h, h->buf);
 192 }
 193
 194
 195 static void
 196 print_man_nodelist(MAN_ARGS)
 197 {
 198
 199         print_man_node(man, n, mh, h);
 200         if (n->next)
 201                 print_man_nodelist(man, n->next, mh, h);
 202 }
 203
 204
 205 static void
 206 print_man_node(MAN_ARGS)
 207 {
 208         int              child;
 209         struct tag      *t;
 210
 211         child = 1;
 212         t = h->tags.head;
 213
 214         switch (n->type) {
 215         case (MAN_ROOT):
 216                 man_root_pre(man, n, mh, h);
 217                 break;
 218         case (MAN_TEXT):
 219                 /*
 220                  * If we have a blank line, output a vertical space.
 221                  * If we have a space as the first character, break
 222                  * before printing the line's data.
 223                  */
 224                 if ('\0' == *n->string) {
 225                         print_otag(h, TAG_P, 0, NULL);
 226                         return;
 227                 }
 228
 229                 if (' ' == *n->string && MAN_LINE & n->flags)
 230                         print_otag(h, TAG_BR, 0, NULL);
 231                 else if (MANH_LITERAL & mh->fl && n->prev)
 232                         print_otag(h, TAG_BR, 0, NULL);
 233
 234                 print_text(h, n->string);
 235                 return;
 236         case (MAN_EQN):
 237                 print_eqn(h, n->eqn);
 238                 break;
 239         case (MAN_TBL):
 240                 /*
 241                  * This will take care of initialising all of the table
 242                  * state data for the first table, then tearing it down
 243                  * for the last one.
 244                  */
 245                 print_tbl(h, n->span);
 246                 return;
 247         default:
 248                 /*
 249                  * Close out scope of font prior to opening a macro
 250                  * scope.
 251                  */
 252                 if (HTMLFONT_NONE != h->metac) {
 253                         h->metal = h->metac;
 254                         h->metac = HTMLFONT_NONE;
 255                 }
 256
 257                 /*
 258                  * Close out the current table, if it's open, and unset
 259                  * the "meta" table state.  This will be reopened on the
 260                  * next table element.
 261                  */
 262                 if (h->tblt) {
 263                         print_tblclose(h);
 264                         t = h->tags.head;
 265                 }
 266                 if (mans[n->tok].pre)
 267                         child = (*mans[n->tok].pre)(man, n, mh, h);
 268                 break;
 269         }
 270
 271         if (child && n->child)
 272                 print_man_nodelist(man, n->child, mh, h);
 273
 274         /* This will automatically close out any font scope. */
 275         print_stagq(h, t);
 276
 277         switch (n->type) {
 278         case (MAN_ROOT):
 279                 man_root_post(man, n, mh, h);
 280                 break;
 281         case (MAN_EQN):
 282                 break;
 283         default:
 284                 if (mans[n->tok].post)
 285                         (*mans[n->tok].post)(man, n, mh, h);
 286                 break;
 287         }
 288 }
 289
 290
 291 static int
 292 a2width(const struct man_node *n, struct roffsu *su)
 293 {
 294
 295         if (MAN_TEXT != n->type)
 296                 return(0);
 297         if (a2roffsu(n->string, su, SCALE_BU))
 298                 return(1);
 299
 300         return(0);
 301 }
 302
 303
 304 /* ARGSUSED */
 305 static void
 306 man_root_pre(MAN_ARGS)
 307 {
 308         struct htmlpair  tag[3];
 309         struct tag      *t, *tt;
 310         char             b[BUFSIZ], title[BUFSIZ];
 311
 312         b[0] = 0;
 313         if (man->vol)
 314                 (void)strlcat(b, man->vol, BUFSIZ);
 315
 316         assert(man->title);
 317         assert(man->msec);
 318         snprintf(title, BUFSIZ - 1, "%s(%s)", man->title, man->msec);
 319
 320         PAIR_SUMMARY_INIT(&tag[0], "Document Header");
 321         PAIR_CLASS_INIT(&tag[1], "head");
 322         PAIR_INIT(&tag[2], ATTR_WIDTH, "100%");
 323         t = print_otag(h, TAG_TABLE, 3, tag);
 324         PAIR_INIT(&tag[0], ATTR_WIDTH, "30%");
 325         print_otag(h, TAG_COL, 1, tag);
 326         print_otag(h, TAG_COL, 1, tag);
 327         print_otag(h, TAG_COL, 1, tag);
 328
 329         print_otag(h, TAG_TBODY, 0, NULL);
 330
 331         tt = print_otag(h, TAG_TR, 0, NULL);
 332
 333         PAIR_CLASS_INIT(&tag[0], "head-ltitle");
 334         print_otag(h, TAG_TD, 1, tag);
 335         print_text(h, title);
 336         print_stagq(h, tt);
 337
 338         PAIR_CLASS_INIT(&tag[0], "head-vol");
 339         PAIR_INIT(&tag[1], ATTR_ALIGN, "center");
 340         print_otag(h, TAG_TD, 2, tag);
 341         print_text(h, b);
 342         print_stagq(h, tt);
 343
 344         PAIR_CLASS_INIT(&tag[0], "head-rtitle");
 345         PAIR_INIT(&tag[1], ATTR_ALIGN, "right");
 346         print_otag(h, TAG_TD, 2, tag);
 347         print_text(h, title);
 348         print_tagq(h, t);
 349 }
 350
 351
 352 /* ARGSUSED */
 353 static void
 354 man_root_post(MAN_ARGS)
 355 {
 356         struct htmlpair  tag[3];
 357         struct tag      *t, *tt;
 358
 359         PAIR_SUMMARY_INIT(&tag[0], "Document Footer");
 360         PAIR_CLASS_INIT(&tag[1], "foot");
 361         PAIR_INIT(&tag[2], ATTR_WIDTH, "100%");
 362         t = print_otag(h, TAG_TABLE, 3, tag);
 363         PAIR_INIT(&tag[0], ATTR_WIDTH, "50%");
 364         print_otag(h, TAG_COL, 1, tag);
 365         print_otag(h, TAG_COL, 1, tag);
 366
 367         tt = print_otag(h, TAG_TR, 0, NULL);
 368
 369         PAIR_CLASS_INIT(&tag[0], "foot-date");
 370         print_otag(h, TAG_TD, 1, tag);
 371
 372         assert(man->date);
 373         print_text(h, man->date);
 374         print_stagq(h, tt);
 375
 376         PAIR_CLASS_INIT(&tag[0], "foot-os");
 377         PAIR_INIT(&tag[1], ATTR_ALIGN, "right");
 378         print_otag(h, TAG_TD, 2, tag);
 379
 380         if (man->source)
 381                 print_text(h, man->source);
 382         print_tagq(h, t);
 383 }
 384
 385
 386 /* ARGSUSED */
 387 static int
 388 man_br_pre(MAN_ARGS)
 389 {
 390         struct roffsu    su;
 391         struct htmlpair  tag;
 392
 393         SCALE_VS_INIT(&su, 1);
 394
 395         if (MAN_sp == n->tok) {
 396                 if (NULL != (n = n->child))
 397                         if ( ! a2roffsu(n->string, &su, SCALE_VS))
 398                                 SCALE_VS_INIT(&su, atoi(n->string));
 399         } else
 400                 su.scale = 0;
 401
 402         bufinit(h);
 403         bufcat_su(h, "height", &su);
 404         PAIR_STYLE_INIT(&tag, h);
 405         print_otag(h, TAG_DIV, 1, &tag);
 406
 407         /* So the div isn't empty: */
 408         print_text(h, "\\~");
 409
 410         return(0);
 411 }
 412
 413 /* ARGSUSED */
 414 static int
 415 man_SH_pre(MAN_ARGS)
 416 {
 417         struct htmlpair  tag;
 418
 419         if (MAN_BLOCK == n->type) {
 420                 mh->fl &= ~MANH_LITERAL;
 421                 PAIR_CLASS_INIT(&tag, "section");
 422                 print_otag(h, TAG_DIV, 1, &tag);
 423                 return(1);
 424         } else if (MAN_BODY == n->type)
 425                 return(1);
 426
 427         print_otag(h, TAG_H1, 0, NULL);
 428         return(1);
 429 }
 430
 431 /* ARGSUSED */
 432 static int
 433 man_alt_pre(MAN_ARGS)
 434 {
 435         const struct man_node   *nn;
 436         int              i, savelit;
 437         enum htmltag     fp;
 438         struct tag      *t;
 439
 440         if ((savelit = mh->fl & MANH_LITERAL))
 441                 print_otag(h, TAG_BR, 0, NULL);
 442
 443         mh->fl &= ~MANH_LITERAL;
 444
 445         for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
 446                 t = NULL;
 447                 switch (n->tok) {
 448                 case (MAN_BI):
 449                         fp = i % 2 ? TAG_I : TAG_B;
 450                         break;
 451                 case (MAN_IB):
 452                         fp = i % 2 ? TAG_B : TAG_I;
 453                         break;
 454                 case (MAN_RI):
 455                         fp = i % 2 ? TAG_I : TAG_MAX;
 456                         break;
 457                 case (MAN_IR):
 458                         fp = i % 2 ? TAG_MAX : TAG_I;
 459                         break;
 460                 case (MAN_BR):
 461                         fp = i % 2 ? TAG_MAX : TAG_B;
 462                         break;
 463                 case (MAN_RB):
 464                         fp = i % 2 ? TAG_B : TAG_MAX;
 465                         break;
 466                 default:
 467                         abort();
 468                         /* NOTREACHED */
 469                 }
 470
 471                 if (i)
 472                         h->flags |= HTML_NOSPACE;
 473
 474                 if (TAG_MAX != fp)
 475                         t = print_otag(h, fp, 0, NULL);
 476
 477                 print_man_node(man, nn, mh, h);
 478
 479                 if (t)
 480                         print_tagq(h, t);
 481         }
 482
 483         if (savelit)
 484                 mh->fl |= MANH_LITERAL;
 485
 486         return(0);
 487 }
 488
 489 /* ARGSUSED */
 490 static int
 491 man_SM_pre(MAN_ARGS)
 492 {
 493
 494         print_otag(h, TAG_SMALL, 0, NULL);
 495         if (MAN_SB == n->tok)
 496                 print_otag(h, TAG_B, 0, NULL);
 497         return(1);
 498 }
 499
 500 /* ARGSUSED */
 501 static int
 502 man_SS_pre(MAN_ARGS)
 503 {
 504         struct htmlpair  tag;
 505
 506         if (MAN_BLOCK == n->type) {
 507                 mh->fl &= ~MANH_LITERAL;
 508                 PAIR_CLASS_INIT(&tag, "subsection");
 509                 print_otag(h, TAG_DIV, 1, &tag);
 510                 return(1);
 511         } else if (MAN_BODY == n->type)
 512                 return(1);
 513
 514         print_otag(h, TAG_H2, 0, NULL);
 515         return(1);
 516 }
 517
 518 /* ARGSUSED */
 519 static int
 520 man_PP_pre(MAN_ARGS)
 521 {
 522
 523         if (MAN_HEAD == n->type)
 524                 return(0);
 525         else if (MAN_BLOCK == n->type)
 526                 print_bvspace(h, n);
 527
 528         return(1);
 529 }
 530
 531 /* ARGSUSED */
 532 static int
 533 man_IP_pre(MAN_ARGS)
 534 {
 535         const struct man_node   *nn;
 536
 537         if (MAN_BODY == n->type) {
 538                 print_otag(h, TAG_DD, 0, NULL);
 539                 return(1);
 540         } else if (MAN_HEAD != n->type) {
 541                 print_otag(h, TAG_DL, 0, NULL);
 542                 return(1);
 543         }
 544
 545         /* FIXME: width specification. */
 546
 547         print_otag(h, TAG_DT, 0, NULL);
 548
 549         /* For IP, only print the first header element. */
 550
 551         if (MAN_IP == n->tok && n->child)
 552                 print_man_node(man, n->child, mh, h);
 553
 554         /* For TP, only print next-line header elements. */
 555
 556         if (MAN_TP == n->tok)
 557                 for (nn = n->child; nn; nn = nn->next)
 558                         if (nn->line > n->line)
 559                                 print_man_node(man, nn, mh, h);
 560
 561         return(0);
 562 }
 563
 564 /* ARGSUSED */
 565 static int
 566 man_HP_pre(MAN_ARGS)
 567 {
 568         struct htmlpair  tag;
 569         struct roffsu    su;
 570         const struct man_node *np;
 571
 572         if (MAN_HEAD == n->type)
 573                 return(0);
 574         else if (MAN_BLOCK != n->type)
 575                 return(1);
 576
 577         np = n->head->child;
 578
 579         if (NULL == np || ! a2width(np, &su))
 580                 SCALE_HS_INIT(&su, INDENT);
 581
 582         bufinit(h);
 583
 584         print_bvspace(h, n);
 585         bufcat_su(h, "margin-left", &su);
 586         su.scale = -su.scale;
 587         bufcat_su(h, "text-indent", &su);
 588         PAIR_STYLE_INIT(&tag, h);
 589         print_otag(h, TAG_P, 1, &tag);
 590         return(1);
 591 }
 592
 593 /* ARGSUSED */
 594 static int
 595 man_OP_pre(MAN_ARGS)
 596 {
 597         struct tag      *tt;
 598         struct htmlpair  tag;
 599
 600         print_text(h, "[");
 601         h->flags |= HTML_NOSPACE;
 602         PAIR_CLASS_INIT(&tag, "opt");
 603         tt = print_otag(h, TAG_SPAN, 1, &tag);
 604
 605         if (NULL != (n = n->child)) {
 606                 print_otag(h, TAG_B, 0, NULL);
 607                 print_text(h, n->string);
 608         }
 609
 610         print_stagq(h, tt);
 611
 612         if (NULL != n && NULL != n->next) {
 613                 print_otag(h, TAG_I, 0, NULL);
 614                 print_text(h, n->next->string);
 615         }
 616
 617         print_stagq(h, tt);
 618         h->flags |= HTML_NOSPACE;
 619         print_text(h, "]");
 620         return(0);
 621 }
 622
 623
 624 /* ARGSUSED */
 625 static int
 626 man_B_pre(MAN_ARGS)
 627 {
 628
 629         print_otag(h, TAG_B, 0, NULL);
 630         return(1);
 631 }
 632
 633 /* ARGSUSED */
 634 static int
 635 man_I_pre(MAN_ARGS)
 636 {
 637
 638         print_otag(h, TAG_I, 0, NULL);
 639         return(1);
 640 }
 641
 642 /* ARGSUSED */
 643 static int
 644 man_literal_pre(MAN_ARGS)
 645 {
 646
 647         if (MAN_fi == n->tok || MAN_EE == n->tok) {
 648                 print_otag(h, TAG_BR, 0, NULL);
 649                 mh->fl &= ~MANH_LITERAL;
 650         } else
 651                 mh->fl |= MANH_LITERAL;
 652
 653         return(0);
 654 }
 655
 656 /* ARGSUSED */
 657 static int
 658 man_in_pre(MAN_ARGS)
 659 {
 660
 661         print_otag(h, TAG_BR, 0, NULL);
 662         return(0);
 663 }
 664
 665 /* ARGSUSED */
 666 static int
 667 man_ign_pre(MAN_ARGS)
 668 {
 669
 670         return(0);
 671 }
 672
 673 /* ARGSUSED */
 674 static int
 675 man_RS_pre(MAN_ARGS)
 676 {
 677         struct htmlpair  tag;
 678         struct roffsu    su;
 679
 680         if (MAN_HEAD == n->type)
 681                 return(0);
 682         else if (MAN_BODY == n->type)
 683                 return(1);
 684
 685         SCALE_HS_INIT(&su, INDENT);
 686         if (n->head->child)
 687                 a2width(n->head->child, &su);
 688
 689         bufinit(h);
 690         bufcat_su(h, "margin-left", &su);
 691         PAIR_STYLE_INIT(&tag, h);
 692         print_otag(h, TAG_DIV, 1, &tag);
 693         return(1);
 694 }
 695
 696 /* ARGSUSED */
 697 static int
 698 man_UR_pre(MAN_ARGS)
 699 {
 700         struct htmlpair          tag[2];
 701
 702         n = n->child;
 703         assert(MAN_HEAD == n->type);
 704         if (n->nchild) {
 705                 assert(MAN_TEXT == n->child->type);
 706                 PAIR_CLASS_INIT(&tag[0], "link-ext");
 707                 PAIR_HREF_INIT(&tag[1], n->child->string);
 708                 print_otag(h, TAG_A, 2, tag);
 709         }
 710
 711         assert(MAN_BODY == n->next->type);
 712         if (n->next->nchild)
 713                 n = n->next;
 714
 715         print_man_nodelist(man, n->child, mh, h);
 716
 717         return(0);
 718 }