man_term.c

   1 /*      $Id: man_term.c,v 1.74 2010/06/09 08:07:13 kristaps Exp $ */
   2 /*
   3  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
   4  *
   5  * Permission to use, copy, modify, and distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17 #ifdef HAVE_CONFIG_H
  18 #include "config.h"
  19 #endif
  20
  21 #include <sys/types.h>
  22
  23 #include <assert.h>
  24 #include <ctype.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28
  29 #include "mandoc.h"
  30 #include "out.h"
  31 #include "man.h"
  32 #include "term.h"
  33 #include "chars.h"
  34 #include "main.h"
  35
  36 #define INDENT            7
  37 #define HALFINDENT        3
  38
  39 /* FIXME: have PD set the default vspace width. */
  40
  41 struct  mtermp {
  42         int               fl;
  43 #define MANT_LITERAL     (1 << 0)
  44         /*
  45          * Default amount to indent the left margin after leading text
  46          * has been printed (e.g., `HP' left-indent, `TP' and `IP' body
  47          * indent).  This needs to be saved because `HP' and so on, if
  48          * not having a specified value, must default.
  49          *
  50          * Note that this is the indentation AFTER the left offset, so
  51          * the total offset is usually offset + lmargin.
  52          */
  53         size_t            lmargin;
  54         /*
  55          * The default offset, i.e., the amount between any text and the
  56          * page boundary.
  57          */
  58         size_t            offset;
  59 };
  60
  61 #define DECL_ARGS         struct termp *p, \
  62                           struct mtermp *mt, \
  63                           const struct man_node *n, \
  64                           const struct man_meta *m
  65
  66 struct  termact {
  67         int             (*pre)(DECL_ARGS);
  68         void            (*post)(DECL_ARGS);
  69         int               flags;
  70 #define MAN_NOTEXT       (1 << 0) /* Never has text children. */
  71 };
  72
  73 static  int               a2width(const struct man_node *);
  74 static  int               a2height(const struct man_node *);
  75
  76 static  void              print_man_nodelist(DECL_ARGS);
  77 static  void              print_man_node(DECL_ARGS);
  78 static  void              print_man_head(struct termp *, const void *);
  79 static  void              print_man_foot(struct termp *, const void *);
  80 static  void              print_bvspace(struct termp *,
  81                                 const struct man_node *);
  82
  83 static  int               pre_B(DECL_ARGS);
  84 static  int               pre_BI(DECL_ARGS);
  85 static  int               pre_HP(DECL_ARGS);
  86 static  int               pre_I(DECL_ARGS);
  87 static  int               pre_IP(DECL_ARGS);
  88 static  int               pre_PP(DECL_ARGS);
  89 static  int               pre_RB(DECL_ARGS);
  90 static  int               pre_RI(DECL_ARGS);
  91 static  int               pre_RS(DECL_ARGS);
  92 static  int               pre_SH(DECL_ARGS);
  93 static  int               pre_SS(DECL_ARGS);
  94 static  int               pre_TP(DECL_ARGS);
  95 static  int               pre_br(DECL_ARGS);
  96 static  int               pre_fi(DECL_ARGS);
  97 static  int               pre_ign(DECL_ARGS);
  98 static  int               pre_nf(DECL_ARGS);
  99 static  int               pre_sp(DECL_ARGS);
 100
 101 static  void              post_IP(DECL_ARGS);
 102 static  void              post_HP(DECL_ARGS);
 103 static  void              post_RS(DECL_ARGS);
 104 static  void              post_SH(DECL_ARGS);
 105 static  void              post_SS(DECL_ARGS);
 106 static  void              post_TP(DECL_ARGS);
 107
 108 static  const struct termact termacts[MAN_MAX] = {
 109         { pre_br, NULL, MAN_NOTEXT }, /* br */
 110         { NULL, NULL, 0 }, /* TH */
 111         { pre_SH, post_SH, 0 }, /* SH */
 112         { pre_SS, post_SS, 0 }, /* SS */
 113         { pre_TP, post_TP, 0 }, /* TP */
 114         { pre_PP, NULL, 0 }, /* LP */
 115         { pre_PP, NULL, 0 }, /* PP */
 116         { pre_PP, NULL, 0 }, /* P */
 117         { pre_IP, post_IP, 0 }, /* IP */
 118         { pre_HP, post_HP, 0 }, /* HP */
 119         { NULL, NULL, 0 }, /* SM */
 120         { pre_B, NULL, 0 }, /* SB */
 121         { pre_BI, NULL, 0 }, /* BI */
 122         { pre_BI, NULL, 0 }, /* IB */
 123         { pre_RB, NULL, 0 }, /* BR */
 124         { pre_RB, NULL, 0 }, /* RB */
 125         { NULL, NULL, 0 }, /* R */
 126         { pre_B, NULL, 0 }, /* B */
 127         { pre_I, NULL, 0 }, /* I */
 128         { pre_RI, NULL, 0 }, /* IR */
 129         { pre_RI, NULL, 0 }, /* RI */
 130         { NULL, NULL, MAN_NOTEXT }, /* na */
 131         { pre_I, NULL, 0 }, /* i */
 132         { pre_sp, NULL, MAN_NOTEXT }, /* sp */
 133         { pre_nf, NULL, 0 }, /* nf */
 134         { pre_fi, NULL, 0 }, /* fi */
 135         { NULL, NULL, 0 }, /* r */
 136         { NULL, NULL, 0 }, /* RE */
 137         { pre_RS, post_RS, 0 }, /* RS */
 138         { pre_ign, NULL, 0 }, /* DT */
 139         { pre_ign, NULL, 0 }, /* UC */
 140         { pre_ign, NULL, 0 }, /* PD */
 141         { pre_sp, NULL, MAN_NOTEXT }, /* Sp */
 142         { pre_nf, NULL, 0 }, /* Vb */
 143         { pre_fi, NULL, 0 }, /* Ve */
 144         { pre_ign, NULL, 0 }, /* AT */
 145 };
 146
 147
 148
 149 void
 150 terminal_man(void *arg, const struct man *man)
 151 {
 152         struct termp            *p;
 153         const struct man_node   *n;
 154         const struct man_meta   *m;
 155         struct mtermp            mt;
 156
 157         p = (struct termp *)arg;
 158
 159         p->overstep = 0;
 160         p->maxrmargin = p->defrmargin;
 161
 162         term_begin(p, print_man_head, print_man_foot, man_meta(man));
 163
 164         if (NULL == p->symtab)
 165                 switch (p->enc) {
 166                 case (TERMENC_ASCII):
 167                         p->symtab = chars_init(CHARS_ASCII);
 168                         break;
 169                 default:
 170                         abort();
 171                         /* NOTREACHED */
 172                 }
 173
 174         n = man_node(man);
 175         m = man_meta(man);
 176
 177         p->flags |= TERMP_NOSPACE;
 178
 179         mt.fl = 0;
 180         mt.lmargin = INDENT;
 181         mt.offset = INDENT;
 182
 183         if (n->child)
 184                 print_man_nodelist(p, &mt, n->child, m);
 185
 186         term_end(p);
 187 }
 188
 189
 190 static int
 191 a2height(const struct man_node *n)
 192 {
 193         struct roffsu    su;
 194
 195         assert(MAN_TEXT == n->type);
 196         assert(n->string);
 197         if ( ! a2roffsu(n->string, &su, SCALE_VS))
 198                 SCALE_VS_INIT(&su, strlen(n->string));
 199
 200         return((int)term_vspan(&su));
 201 }
 202
 203
 204 static int
 205 a2width(const struct man_node *n)
 206 {
 207         struct roffsu    su;
 208
 209         assert(MAN_TEXT == n->type);
 210         assert(n->string);
 211         if ( ! a2roffsu(n->string, &su, SCALE_BU))
 212                 return(-1);
 213
 214         return((int)term_hspan(&su));
 215 }
 216
 217
 218 static void
 219 print_bvspace(struct termp *p, const struct man_node *n)
 220 {
 221         term_newln(p);
 222
 223         if (NULL == n->prev)
 224                 return;
 225
 226         if (MAN_SS == n->prev->tok)
 227                 return;
 228         if (MAN_SH == n->prev->tok)
 229                 return;
 230
 231         term_vspace(p);
 232 }
 233
 234
 235 /* ARGSUSED */
 236 static int
 237 pre_ign(DECL_ARGS)
 238 {
 239
 240         return(0);
 241 }
 242
 243
 244 /* ARGSUSED */
 245 static int
 246 pre_I(DECL_ARGS)
 247 {
 248
 249         term_fontrepl(p, TERMFONT_UNDER);
 250         return(1);
 251 }
 252
 253
 254 /* ARGSUSED */
 255 static int
 256 pre_fi(DECL_ARGS)
 257 {
 258
 259         mt->fl &= ~MANT_LITERAL;
 260         return(1);
 261 }
 262
 263
 264 /* ARGSUSED */
 265 static int
 266 pre_nf(DECL_ARGS)
 267 {
 268
 269         mt->fl |= MANT_LITERAL;
 270         return(MAN_Vb != n->tok);
 271 }
 272
 273
 274 /* ARGSUSED */
 275 static int
 276 pre_RB(DECL_ARGS)
 277 {
 278         const struct man_node *nn;
 279         int              i;
 280
 281         for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
 282                 if (i % 2 && MAN_RB == n->tok)
 283                         term_fontrepl(p, TERMFONT_BOLD);
 284                 else if ( ! (i % 2) && MAN_RB != n->tok)
 285                         term_fontrepl(p, TERMFONT_BOLD);
 286                 else
 287                         term_fontrepl(p, TERMFONT_NONE);
 288
 289                 if (i > 0)
 290                         p->flags |= TERMP_NOSPACE;
 291
 292                 print_man_node(p, mt, nn, m);
 293         }
 294         return(0);
 295 }
 296
 297
 298 /* ARGSUSED */
 299 static int
 300 pre_RI(DECL_ARGS)
 301 {
 302         const struct man_node *nn;
 303         int              i;
 304
 305         for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
 306                 if (i % 2 && MAN_RI == n->tok)
 307                         term_fontrepl(p, TERMFONT_UNDER);
 308                 else if ( ! (i % 2) && MAN_RI != n->tok)
 309                         term_fontrepl(p, TERMFONT_UNDER);
 310                 else
 311                         term_fontrepl(p, TERMFONT_NONE);
 312
 313                 if (i > 0)
 314                         p->flags |= TERMP_NOSPACE;
 315
 316                 print_man_node(p, mt, nn, m);
 317         }
 318         return(0);
 319 }
 320
 321
 322 /* ARGSUSED */
 323 static int
 324 pre_BI(DECL_ARGS)
 325 {
 326         const struct man_node   *nn;
 327         int                      i;
 328
 329         for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
 330                 if (i % 2 && MAN_BI == n->tok)
 331                         term_fontrepl(p, TERMFONT_UNDER);
 332                 else if (i % 2)
 333                         term_fontrepl(p, TERMFONT_BOLD);
 334                 else if (MAN_BI == n->tok)
 335                         term_fontrepl(p, TERMFONT_BOLD);
 336                 else
 337                         term_fontrepl(p, TERMFONT_UNDER);
 338
 339                 if (i)
 340                         p->flags |= TERMP_NOSPACE;
 341
 342                 print_man_node(p, mt, nn, m);
 343         }
 344         return(0);
 345 }
 346
 347
 348 /* ARGSUSED */
 349 static int
 350 pre_B(DECL_ARGS)
 351 {
 352
 353         term_fontrepl(p, TERMFONT_BOLD);
 354         return(1);
 355 }
 356
 357
 358 /* ARGSUSED */
 359 static int
 360 pre_sp(DECL_ARGS)
 361 {
 362         int              i, len;
 363
 364         len = n->child ? a2height(n->child) : 1;
 365
 366         if (0 == len)
 367                 term_newln(p);
 368         for (i = 0; i <= len; i++)
 369                 term_vspace(p);
 370
 371         return(0);
 372 }
 373
 374
 375 /* ARGSUSED */
 376 static int
 377 pre_br(DECL_ARGS)
 378 {
 379
 380         term_newln(p);
 381         return(0);
 382 }
 383
 384
 385 /* ARGSUSED */
 386 static int
 387 pre_HP(DECL_ARGS)
 388 {
 389         size_t                   len;
 390         int                      ival;
 391         const struct man_node   *nn;
 392
 393         switch (n->type) {
 394         case (MAN_BLOCK):
 395                 print_bvspace(p, n);
 396                 return(1);
 397         case (MAN_BODY):
 398                 p->flags |= TERMP_NOBREAK;
 399                 p->flags |= TERMP_TWOSPACE;
 400                 break;
 401         default:
 402                 return(0);
 403         }
 404
 405         len = mt->lmargin;
 406         ival = -1;
 407
 408         /* Calculate offset. */
 409
 410         if (NULL != (nn = n->parent->head->child))
 411                 if ((ival = a2width(nn)) >= 0)
 412                         len = (size_t)ival;
 413
 414         if (0 == len)
 415                 len = 1;
 416
 417         p->offset = mt->offset;
 418         p->rmargin = mt->offset + len;
 419
 420         if (ival >= 0)
 421                 mt->lmargin = (size_t)ival;
 422
 423         return(1);
 424 }
 425
 426
 427 /* ARGSUSED */
 428 static void
 429 post_HP(DECL_ARGS)
 430 {
 431
 432         switch (n->type) {
 433         case (MAN_BLOCK):
 434                 term_flushln(p);
 435                 break;
 436         case (MAN_BODY):
 437                 term_flushln(p);
 438                 p->flags &= ~TERMP_NOBREAK;
 439                 p->flags &= ~TERMP_TWOSPACE;
 440                 p->offset = mt->offset;
 441                 p->rmargin = p->maxrmargin;
 442                 break;
 443         default:
 444                 break;
 445         }
 446 }
 447
 448
 449 /* ARGSUSED */
 450 static int
 451 pre_PP(DECL_ARGS)
 452 {
 453
 454         switch (n->type) {
 455         case (MAN_BLOCK):
 456                 mt->lmargin = INDENT;
 457                 print_bvspace(p, n);
 458                 break;
 459         default:
 460                 p->offset = mt->offset;
 461                 break;
 462         }
 463
 464         return(1);
 465 }
 466
 467
 468 /* ARGSUSED */
 469 static int
 470 pre_IP(DECL_ARGS)
 471 {
 472         const struct man_node   *nn;
 473         size_t                   len;
 474         int                      ival;
 475
 476         switch (n->type) {
 477         case (MAN_BODY):
 478                 p->flags |= TERMP_NOLPAD;
 479                 p->flags |= TERMP_NOSPACE;
 480                 break;
 481         case (MAN_HEAD):
 482                 p->flags |= TERMP_NOBREAK;
 483                 break;
 484         case (MAN_BLOCK):
 485                 print_bvspace(p, n);
 486                 /* FALLTHROUGH */
 487         default:
 488                 return(1);
 489         }
 490
 491         len = mt->lmargin;
 492         ival = -1;
 493
 494         /* Calculate offset. */
 495
 496         if (NULL != (nn = n->parent->head->child))
 497                 if (NULL != (nn = nn->next)) {
 498                         for ( ; nn->next; nn = nn->next)
 499                                 /* Do nothing. */ ;
 500                         if ((ival = a2width(nn)) >= 0)
 501                                 len = (size_t)ival;
 502                 }
 503
 504         switch (n->type) {
 505         case (MAN_HEAD):
 506                 /* Handle zero-width lengths. */
 507                 if (0 == len)
 508                         len = 1;
 509
 510                 p->offset = mt->offset;
 511                 p->rmargin = mt->offset + len;
 512                 if (ival < 0)
 513                         break;
 514
 515                 /* Set the saved left-margin. */
 516                 mt->lmargin = (size_t)ival;
 517
 518                 /* Don't print the length value. */
 519                 for (nn = n->child; nn->next; nn = nn->next)
 520                         print_man_node(p, mt, nn, m);
 521                 return(0);
 522         case (MAN_BODY):
 523                 p->offset = mt->offset + len;
 524                 p->rmargin = p->maxrmargin;
 525                 break;
 526         default:
 527                 break;
 528         }
 529
 530         return(1);
 531 }
 532
 533
 534 /* ARGSUSED */
 535 static void
 536 post_IP(DECL_ARGS)
 537 {
 538
 539         switch (n->type) {
 540         case (MAN_HEAD):
 541                 term_flushln(p);
 542                 p->flags &= ~TERMP_NOBREAK;
 543                 p->rmargin = p->maxrmargin;
 544                 break;
 545         case (MAN_BODY):
 546                 term_flushln(p);
 547                 p->flags &= ~TERMP_NOLPAD;
 548                 break;
 549         default:
 550                 break;
 551         }
 552 }
 553
 554
 555 /* ARGSUSED */
 556 static int
 557 pre_TP(DECL_ARGS)
 558 {
 559         const struct man_node   *nn;
 560         size_t                   len;
 561         int                      ival;
 562
 563         switch (n->type) {
 564         case (MAN_HEAD):
 565                 p->flags |= TERMP_NOBREAK;
 566                 p->flags |= TERMP_TWOSPACE;
 567                 break;
 568         case (MAN_BODY):
 569                 p->flags |= TERMP_NOLPAD;
 570                 p->flags |= TERMP_NOSPACE;
 571                 break;
 572         case (MAN_BLOCK):
 573                 print_bvspace(p, n);
 574                 /* FALLTHROUGH */
 575         default:
 576                 return(1);
 577         }
 578
 579         len = (size_t)mt->lmargin;
 580         ival = -1;
 581
 582         /* Calculate offset. */
 583
 584         if (NULL != (nn = n->parent->head->child)) {
 585                 while (nn && MAN_TEXT != nn->type)
 586                         nn = nn->next;
 587                 if (nn && nn->next)
 588                         if ((ival = a2width(nn)) >= 0)
 589                                 len = (size_t)ival;
 590         }
 591
 592         switch (n->type) {
 593         case (MAN_HEAD):
 594                 /* Handle zero-length properly. */
 595                 if (0 == len)
 596                         len = 1;
 597
 598                 p->offset = mt->offset;
 599                 p->rmargin = mt->offset + len;
 600
 601                 /* Don't print same-line elements. */
 602                 for (nn = n->child; nn; nn = nn->next)
 603                         if (nn->line > n->line)
 604                                 print_man_node(p, mt, nn, m);
 605
 606                 if (ival >= 0)
 607                         mt->lmargin = (size_t)ival;
 608
 609                 return(0);
 610         case (MAN_BODY):
 611                 p->offset = mt->offset + len;
 612                 p->rmargin = p->maxrmargin;
 613                 break;
 614         default:
 615                 break;
 616         }
 617
 618         return(1);
 619 }
 620
 621
 622 /* ARGSUSED */
 623 static void
 624 post_TP(DECL_ARGS)
 625 {
 626
 627         switch (n->type) {
 628         case (MAN_HEAD):
 629                 term_flushln(p);
 630                 p->flags &= ~TERMP_NOBREAK;
 631                 p->flags &= ~TERMP_TWOSPACE;
 632                 p->rmargin = p->maxrmargin;
 633                 break;
 634         case (MAN_BODY):
 635                 term_flushln(p);
 636                 p->flags &= ~TERMP_NOLPAD;
 637                 break;
 638         default:
 639                 break;
 640         }
 641 }
 642
 643
 644 /* ARGSUSED */
 645 static int
 646 pre_SS(DECL_ARGS)
 647 {
 648
 649         switch (n->type) {
 650         case (MAN_BLOCK):
 651                 mt->lmargin = INDENT;
 652                 mt->offset = INDENT;
 653                 /* If following a prior empty `SS', no vspace. */
 654                 if (n->prev && MAN_SS == n->prev->tok)
 655                         if (NULL == n->prev->body->child)
 656                                 break;
 657                 if (NULL == n->prev)
 658                         break;
 659                 term_vspace(p);
 660                 break;
 661         case (MAN_HEAD):
 662                 term_fontrepl(p, TERMFONT_BOLD);
 663                 p->offset = HALFINDENT;
 664                 break;
 665         case (MAN_BODY):
 666                 p->offset = mt->offset;
 667                 break;
 668         default:
 669                 break;
 670         }
 671
 672         return(1);
 673 }
 674
 675
 676 /* ARGSUSED */
 677 static void
 678 post_SS(DECL_ARGS)
 679 {
 680
 681         switch (n->type) {
 682         case (MAN_HEAD):
 683                 term_newln(p);
 684                 break;
 685         case (MAN_BODY):
 686                 term_newln(p);
 687                 break;
 688         default:
 689                 break;
 690         }
 691 }
 692
 693
 694 /* ARGSUSED */
 695 static int
 696 pre_SH(DECL_ARGS)
 697 {
 698
 699         switch (n->type) {
 700         case (MAN_BLOCK):
 701                 mt->lmargin = INDENT;
 702                 mt->offset = INDENT;
 703                 /* If following a prior empty `SH', no vspace. */
 704                 if (n->prev && MAN_SH == n->prev->tok)
 705                         if (NULL == n->prev->body->child)
 706                                 break;
 707                 /* If the first macro, no vspae. */
 708                 if (NULL == n->prev)
 709                         break;
 710                 term_vspace(p);
 711                 break;
 712         case (MAN_HEAD):
 713                 term_fontrepl(p, TERMFONT_BOLD);
 714                 p->offset = 0;
 715                 break;
 716         case (MAN_BODY):
 717                 p->offset = mt->offset;
 718                 break;
 719         default:
 720                 break;
 721         }
 722
 723         return(1);
 724 }
 725
 726
 727 /* ARGSUSED */
 728 static void
 729 post_SH(DECL_ARGS)
 730 {
 731
 732         switch (n->type) {
 733         case (MAN_HEAD):
 734                 term_newln(p);
 735                 break;
 736         case (MAN_BODY):
 737                 term_newln(p);
 738                 break;
 739         default:
 740                 break;
 741         }
 742 }
 743
 744
 745 /* ARGSUSED */
 746 static int
 747 pre_RS(DECL_ARGS)
 748 {
 749         const struct man_node   *nn;
 750         int                      ival;
 751
 752         switch (n->type) {
 753         case (MAN_BLOCK):
 754                 term_newln(p);
 755                 return(1);
 756         case (MAN_HEAD):
 757                 return(0);
 758         default:
 759                 break;
 760         }
 761
 762         if (NULL == (nn = n->parent->head->child)) {
 763                 mt->offset = mt->lmargin + INDENT;
 764                 p->offset = mt->offset;
 765                 return(1);
 766         }
 767
 768         if ((ival = a2width(nn)) < 0)
 769                 return(1);
 770
 771         mt->offset = INDENT + (size_t)ival;
 772         p->offset = mt->offset;
 773
 774         return(1);
 775 }
 776
 777
 778 /* ARGSUSED */
 779 static void
 780 post_RS(DECL_ARGS)
 781 {
 782
 783         switch (n->type) {
 784         case (MAN_BLOCK):
 785                 mt->offset = mt->lmargin = INDENT;
 786                 break;
 787         case (MAN_HEAD):
 788                 break;
 789         default:
 790                 term_newln(p);
 791                 p->offset = INDENT;
 792                 break;
 793         }
 794 }
 795
 796
 797 static void
 798 print_man_node(DECL_ARGS)
 799 {
 800         size_t           rm, rmax;
 801         int              c;
 802
 803         c = 1;
 804
 805         switch (n->type) {
 806         case(MAN_TEXT):
 807                 if (0 == *n->string) {
 808                         term_vspace(p);
 809                         break;
 810                 }
 811
 812                 term_word(p, n->string);
 813
 814                 /* FIXME: this means that macro lines are munged!  */
 815
 816                 if (MANT_LITERAL & mt->fl) {
 817                         rm = p->rmargin;
 818                         rmax = p->maxrmargin;
 819                         p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
 820                         p->flags |= TERMP_NOSPACE;
 821                         term_flushln(p);
 822                         p->rmargin = rm;
 823                         p->maxrmargin = rmax;
 824                 }
 825                 break;
 826         default:
 827                 if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
 828                         term_fontrepl(p, TERMFONT_NONE);
 829                 if (termacts[n->tok].pre)
 830                         c = (*termacts[n->tok].pre)(p, mt, n, m);
 831                 break;
 832         }
 833
 834         if (c && n->child)
 835                 print_man_nodelist(p, mt, n->child, m);
 836
 837         if (MAN_TEXT != n->type) {
 838                 if (termacts[n->tok].post)
 839                         (*termacts[n->tok].post)(p, mt, n, m);
 840                 if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
 841                         term_fontrepl(p, TERMFONT_NONE);
 842         }
 843
 844         if (MAN_EOS & n->flags)
 845                 p->flags |= TERMP_SENTENCE;
 846 }
 847
 848
 849 static void
 850 print_man_nodelist(DECL_ARGS)
 851 {
 852
 853         print_man_node(p, mt, n, m);
 854         if ( ! n->next)
 855                 return;
 856         print_man_nodelist(p, mt, n->next, m);
 857 }
 858
 859
 860 static void
 861 print_man_foot(struct termp *p, const void *arg)
 862 {
 863         char            buf[DATESIZ];
 864         const struct man_meta *meta;
 865
 866         meta = (const struct man_meta *)arg;
 867
 868         term_fontrepl(p, TERMFONT_NONE);
 869
 870         if (meta->rawdate)
 871                 strlcpy(buf, meta->rawdate, DATESIZ);
 872         else
 873                 time2a(meta->date, buf, DATESIZ);
 874
 875         term_vspace(p);
 876         term_vspace(p);
 877         term_vspace(p);
 878
 879         p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
 880         p->rmargin = p->maxrmargin - strlen(buf);
 881         p->offset = 0;
 882
 883         if (meta->source)
 884                 term_word(p, meta->source);
 885         if (meta->source)
 886                 term_word(p, "");
 887         term_flushln(p);
 888
 889         p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
 890         p->offset = p->rmargin;
 891         p->rmargin = p->maxrmargin;
 892         p->flags &= ~TERMP_NOBREAK;
 893
 894         term_word(p, buf);
 895         term_flushln(p);
 896 }
 897
 898
 899 static void
 900 print_man_head(struct termp *p, const void *arg)
 901 {
 902         char            buf[BUFSIZ], title[BUFSIZ];
 903         size_t          buflen, titlen;
 904         const struct man_meta *m;
 905
 906         m = (const struct man_meta *)arg;
 907
 908         /*
 909          * Note that old groff would spit out some spaces before the
 910          * header.  We discontinue this strange behaviour, but at one
 911          * point we did so here.
 912          */
 913
 914         p->rmargin = p->maxrmargin;
 915
 916         p->offset = 0;
 917         buf[0] = title[0] = '\0';
 918
 919         if (m->vol)
 920                 strlcpy(buf, m->vol, BUFSIZ);
 921         buflen = strlen(buf);
 922
 923         snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
 924         titlen = strlen(title);
 925
 926         p->offset = 0;
 927         p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
 928             (p->maxrmargin - strlen(buf) + 1) / 2 :
 929             p->maxrmargin - buflen;
 930         p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
 931
 932         term_word(p, title);
 933         term_flushln(p);
 934
 935         p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
 936         p->offset = p->rmargin;
 937         p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
 938             p->maxrmargin - titlen : p->maxrmargin;
 939
 940         term_word(p, buf);
 941         term_flushln(p);
 942
 943         p->flags &= ~TERMP_NOBREAK;
 944         if (p->rmargin + titlen <= p->maxrmargin) {
 945                 p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
 946                 p->offset = p->rmargin;
 947                 p->rmargin = p->maxrmargin;
 948                 term_word(p, title);
 949                 term_flushln(p);
 950         }
 951
 952         p->rmargin = p->maxrmargin;
 953         p->offset = 0;
 954         p->flags &= ~TERMP_NOSPACE;
 955
 956         /*
 957          * Groff likes to have some leading spaces before content.  Well
 958          * that's fine by me.
 959          */
 960
 961         term_vspace(p);
 962         term_vspace(p);
 963         term_vspace(p);
 964 }