man_term.c

   1 /*      $Id: man_term.c,v 1.47 2009/10/30 18:53:08 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 #include <sys/types.h>
  18
  19 #include <assert.h>
  20 #include <ctype.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24
  25 #include "out.h"
  26 #include "man.h"
  27 #include "term.h"
  28 #include "chars.h"
  29 #include "main.h"
  30
  31 #define INDENT            7
  32 #define HALFINDENT        3
  33
  34 /* FIXME: have PD set the default vspace width. */
  35
  36 struct  mtermp {
  37         int               fl;
  38 #define MANT_LITERAL     (1 << 0)
  39         /*
  40          * Default amount to indent the left margin after leading text
  41          * has been printed (e.g., `HP' left-indent, `TP' and `IP' body
  42          * indent).  This needs to be saved because `HP' and so on, if
  43          * not having a specified value, must default.
  44          *
  45          * Note that this is the indentation AFTER the left offset, so
  46          * the total offset is usually offset + lmargin.
  47          */
  48         size_t            lmargin;
  49         /*
  50          * The default offset, i.e., the amount between any text and the
  51          * page boundary.
  52          */
  53         size_t            offset;
  54 };
  55
  56 #define DECL_ARGS         struct termp *p, \
  57                           struct mtermp *mt, \
  58                           const struct man_node *n, \
  59                           const struct man_meta *m
  60
  61 struct  termact {
  62         int             (*pre)(DECL_ARGS);
  63         void            (*post)(DECL_ARGS);
  64 };
  65
  66 #ifdef __linux__
  67 extern  size_t            strlcpy(char *, const char *, size_t);
  68 extern  size_t            strlcat(char *, const char *, size_t);
  69 #endif
  70
  71 static  int               a2width(const struct man_node *);
  72 static  int               a2height(const struct man_node *);
  73
  74 static  void              print_man_head(struct termp *,
  75                                 const struct man_meta *);
  76 static  void              print_man_body(DECL_ARGS);
  77 static  void              print_man_node(DECL_ARGS);
  78 static  void              print_man_foot(struct termp *,
  79                                 const struct man_meta *);
  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_IR(DECL_ARGS);
  89 static  int               pre_PP(DECL_ARGS);
  90 static  int               pre_RB(DECL_ARGS);
  91 static  int               pre_RI(DECL_ARGS);
  92 static  int               pre_RS(DECL_ARGS);
  93 static  int               pre_SH(DECL_ARGS);
  94 static  int               pre_SS(DECL_ARGS);
  95 static  int               pre_TP(DECL_ARGS);
  96 static  int               pre_br(DECL_ARGS);
  97 static  int               pre_fi(DECL_ARGS);
  98 static  int               pre_ign(DECL_ARGS);
  99 static  int               pre_nf(DECL_ARGS);
 100 static  int               pre_r(DECL_ARGS);
 101 static  int               pre_sp(DECL_ARGS);
 102
 103 static  void              post_B(DECL_ARGS);
 104 static  void              post_I(DECL_ARGS);
 105 static  void              post_IP(DECL_ARGS);
 106 static  void              post_HP(DECL_ARGS);
 107 static  void              post_RS(DECL_ARGS);
 108 static  void              post_SH(DECL_ARGS);
 109 static  void              post_SS(DECL_ARGS);
 110 static  void              post_TP(DECL_ARGS);
 111 static  void              post_i(DECL_ARGS);
 112
 113 static  const struct termact termacts[MAN_MAX] = {
 114         { pre_br, NULL }, /* br */
 115         { NULL, NULL }, /* TH */
 116         { pre_SH, post_SH }, /* SH */
 117         { pre_SS, post_SS }, /* SS */
 118         { pre_TP, post_TP }, /* TP */
 119         { pre_PP, NULL }, /* LP */
 120         { pre_PP, NULL }, /* PP */
 121         { pre_PP, NULL }, /* P */
 122         { pre_IP, post_IP }, /* IP */
 123         { pre_HP, post_HP }, /* HP */
 124         { NULL, NULL }, /* SM */
 125         { pre_B, post_B }, /* SB */
 126         { pre_BI, NULL }, /* BI */
 127         { pre_BI, NULL }, /* IB */
 128         { pre_RB, NULL }, /* BR */
 129         { pre_RB, NULL }, /* RB */
 130         { NULL, NULL }, /* R */
 131         { pre_B, post_B }, /* B */
 132         { pre_I, post_I }, /* I */
 133         { pre_IR, NULL }, /* IR */
 134         { pre_RI, NULL }, /* RI */
 135         { NULL, NULL }, /* na */
 136         { pre_I, post_i }, /* i */
 137         { pre_sp, NULL }, /* sp */
 138         { pre_nf, NULL }, /* nf */
 139         { pre_fi, NULL }, /* fi */
 140         { pre_r, NULL }, /* r */
 141         { NULL, NULL }, /* RE */
 142         { pre_RS, post_RS }, /* RS */
 143         { pre_ign, NULL }, /* DT */
 144         { pre_ign, NULL }, /* UC */
 145         { pre_ign, NULL }, /* PD */
 146 };
 147
 148
 149
 150 void
 151 terminal_man(void *arg, const struct man *man)
 152 {
 153         struct termp            *p;
 154         const struct man_node   *n;
 155         const struct man_meta   *m;
 156         struct mtermp            mt;
 157
 158         p = (struct termp *)arg;
 159
 160         if (NULL == p->symtab)
 161                 switch (p->enc) {
 162                 case (TERMENC_ASCII):
 163                         p->symtab = chars_init(CHARS_ASCII);
 164                         break;
 165                 default:
 166                         abort();
 167                         /* NOTREACHED */
 168                 }
 169
 170         n = man_node(man);
 171         m = man_meta(man);
 172
 173         print_man_head(p, m);
 174         p->flags |= TERMP_NOSPACE;
 175
 176         mt.fl = 0;
 177         mt.lmargin = INDENT;
 178         mt.offset = INDENT;
 179
 180         if (n->child)
 181                 print_man_body(p, &mt, n->child, m);
 182         print_man_foot(p, m);
 183 }
 184
 185
 186 static int
 187 a2height(const struct man_node *n)
 188 {
 189         struct roffsu    su;
 190
 191         assert(MAN_TEXT == n->type);
 192         assert(n->string);
 193         if ( ! a2roffsu(n->string, &su, SCALE_VS))
 194                 SCALE_VS_INIT(&su, strlen(n->string));
 195
 196         return((int)term_vspan(&su));
 197 }
 198
 199
 200 static int
 201 a2width(const struct man_node *n)
 202 {
 203         struct roffsu    su;
 204
 205         assert(MAN_TEXT == n->type);
 206         assert(n->string);
 207         if ( ! a2roffsu(n->string, &su, SCALE_BU))
 208                 return(-1);
 209
 210         return((int)term_hspan(&su));
 211 }
 212
 213
 214 static void
 215 print_bvspace(struct termp *p, const struct man_node *n)
 216 {
 217         term_newln(p);
 218
 219         if (NULL == n->prev)
 220                 return;
 221
 222         if (MAN_SS == n->prev->tok)
 223                 return;
 224         if (MAN_SH == n->prev->tok)
 225                 return;
 226
 227         term_vspace(p);
 228 }
 229
 230
 231 /* ARGSUSED */
 232 static int
 233 pre_ign(DECL_ARGS)
 234 {
 235
 236         return(0);
 237 }
 238
 239
 240 /* ARGSUSED */
 241 static int
 242 pre_I(DECL_ARGS)
 243 {
 244
 245         p->under++;
 246         return(1);
 247 }
 248
 249
 250 /* ARGSUSED */
 251 static int
 252 pre_r(DECL_ARGS)
 253 {
 254
 255         p->bold = p->under = 0;
 256         return(1);
 257 }
 258
 259
 260 /* ARGSUSED */
 261 static void
 262 post_i(DECL_ARGS)
 263 {
 264
 265         if (n->nchild)
 266                 p->under--;
 267 }
 268
 269
 270 /* ARGSUSED */
 271 static void
 272 post_I(DECL_ARGS)
 273 {
 274
 275         p->under--;
 276 }
 277
 278
 279 /* ARGSUSED */
 280 static int
 281 pre_fi(DECL_ARGS)
 282 {
 283
 284         mt->fl &= ~MANT_LITERAL;
 285         return(1);
 286 }
 287
 288
 289 /* ARGSUSED */
 290 static int
 291 pre_nf(DECL_ARGS)
 292 {
 293
 294         term_newln(p);
 295         mt->fl |= MANT_LITERAL;
 296         return(1);
 297 }
 298
 299
 300 /* ARGSUSED */
 301 static int
 302 pre_IR(DECL_ARGS)
 303 {
 304         const struct man_node *nn;
 305         int              i;
 306
 307         for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
 308                 if ( ! (i % 2))
 309                         p->under++;
 310                 if (i > 0)
 311                         p->flags |= TERMP_NOSPACE;
 312                 print_man_node(p, mt, nn, m);
 313                 if ( ! (i % 2))
 314                         p->under--;
 315         }
 316         return(0);
 317 }
 318
 319
 320 /* ARGSUSED */
 321 static int
 322 pre_RB(DECL_ARGS)
 323 {
 324         const struct man_node *nn;
 325         int              i;
 326
 327         for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
 328                 if (i % 2 && MAN_RB == n->tok)
 329                         p->bold++;
 330                 else if ( ! (i % 2) && MAN_RB != n->tok)
 331                         p->bold++;
 332
 333                 if (i > 0)
 334                         p->flags |= TERMP_NOSPACE;
 335
 336                 print_man_node(p, mt, nn, m);
 337
 338                 if (i % 2 && MAN_RB == n->tok)
 339                         p->bold--;
 340                 else if ( ! (i % 2) && MAN_RB != n->tok)
 341                         p->bold--;
 342         }
 343         return(0);
 344 }
 345
 346
 347 /* ARGSUSED */
 348 static int
 349 pre_RI(DECL_ARGS)
 350 {
 351         const struct man_node *nn;
 352         int              i;
 353
 354         for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
 355                 if ( ! (i % 2))
 356                         p->under++;
 357                 if (i > 0)
 358                         p->flags |= TERMP_NOSPACE;
 359                 print_man_node(p, mt, nn, m);
 360                 if ( ! (i % 2))
 361                         p->under--;
 362         }
 363         return(0);
 364 }
 365
 366
 367 /* ARGSUSED */
 368 static int
 369 pre_BI(DECL_ARGS)
 370 {
 371         const struct man_node   *nn;
 372         int                      i;
 373
 374         for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
 375                 if (i % 2 && MAN_BI == n->tok)
 376                         p->under++;
 377                 else if (i % 2)
 378                         p->bold++;
 379                 else if (MAN_BI == n->tok)
 380                         p->bold++;
 381                 else
 382                         p->under++;
 383
 384                 if (i)
 385                         p->flags |= TERMP_NOSPACE;
 386                 print_man_node(p, mt, nn, m);
 387
 388                 if (i % 2 && MAN_BI == n->tok)
 389                         p->under--;
 390                 else if (i % 2)
 391                         p->bold--;
 392                 else if (MAN_BI == n->tok)
 393                         p->bold--;
 394                 else
 395                         p->under--;
 396         }
 397         return(0);
 398 }
 399
 400
 401 /* ARGSUSED */
 402 static int
 403 pre_B(DECL_ARGS)
 404 {
 405
 406         p->bold++;
 407         return(1);
 408 }
 409
 410
 411 /* ARGSUSED */
 412 static void
 413 post_B(DECL_ARGS)
 414 {
 415
 416         p->bold--;
 417 }
 418
 419
 420 /* ARGSUSED */
 421 static int
 422 pre_sp(DECL_ARGS)
 423 {
 424         int              i, len;
 425
 426         len = n->child ? a2height(n->child) : 1;
 427
 428         if (0 == len)
 429                 term_newln(p);
 430         for (i = 0; i < len; i++)
 431                 term_vspace(p);
 432
 433         return(0);
 434 }
 435
 436
 437 /* ARGSUSED */
 438 static int
 439 pre_br(DECL_ARGS)
 440 {
 441
 442         term_newln(p);
 443         return(0);
 444 }
 445
 446
 447 /* ARGSUSED */
 448 static int
 449 pre_HP(DECL_ARGS)
 450 {
 451         size_t                   len;
 452         int                      ival;
 453         const struct man_node   *nn;
 454
 455         switch (n->type) {
 456         case (MAN_BLOCK):
 457                 print_bvspace(p, n);
 458                 return(1);
 459         case (MAN_BODY):
 460                 p->flags |= TERMP_NOBREAK;
 461                 p->flags |= TERMP_TWOSPACE;
 462                 break;
 463         default:
 464                 return(0);
 465         }
 466
 467         len = mt->lmargin;
 468         ival = -1;
 469
 470         /* Calculate offset. */
 471
 472         if (NULL != (nn = n->parent->head->child))
 473                 if ((ival = a2width(nn)) >= 0)
 474                         len = (size_t)ival;
 475
 476         if (0 == len)
 477                 len = 1;
 478
 479         p->offset = mt->offset;
 480         p->rmargin = mt->offset + len;
 481
 482         if (ival >= 0)
 483                 mt->lmargin = (size_t)ival;
 484
 485         return(1);
 486 }
 487
 488
 489 /* ARGSUSED */
 490 static void
 491 post_HP(DECL_ARGS)
 492 {
 493
 494         switch (n->type) {
 495         case (MAN_BLOCK):
 496                 term_flushln(p);
 497                 break;
 498         case (MAN_BODY):
 499                 term_flushln(p);
 500                 p->flags &= ~TERMP_NOBREAK;
 501                 p->flags &= ~TERMP_TWOSPACE;
 502                 p->offset = mt->offset;
 503                 p->rmargin = p->maxrmargin;
 504                 break;
 505         default:
 506                 break;
 507         }
 508 }
 509
 510
 511 /* ARGSUSED */
 512 static int
 513 pre_PP(DECL_ARGS)
 514 {
 515
 516         switch (n->type) {
 517         case (MAN_BLOCK):
 518                 mt->lmargin = INDENT;
 519                 print_bvspace(p, n);
 520                 break;
 521         default:
 522                 p->offset = mt->offset;
 523                 break;
 524         }
 525
 526         return(1);
 527 }
 528
 529
 530 /* ARGSUSED */
 531 static int
 532 pre_IP(DECL_ARGS)
 533 {
 534         const struct man_node   *nn;
 535         size_t                   len;
 536         int                      ival;
 537
 538         switch (n->type) {
 539         case (MAN_BODY):
 540                 p->flags |= TERMP_NOLPAD;
 541                 p->flags |= TERMP_NOSPACE;
 542                 break;
 543         case (MAN_HEAD):
 544                 p->flags |= TERMP_NOBREAK;
 545                 p->flags |= TERMP_TWOSPACE;
 546                 break;
 547         case (MAN_BLOCK):
 548                 print_bvspace(p, n);
 549                 /* FALLTHROUGH */
 550         default:
 551                 return(1);
 552         }
 553
 554         len = mt->lmargin;
 555         ival = -1;
 556
 557         /* Calculate offset. */
 558
 559         if (NULL != (nn = n->parent->head->child))
 560                 if (NULL != (nn = nn->next)) {
 561                         for ( ; nn->next; nn = nn->next)
 562                                 /* Do nothing. */ ;
 563                         if ((ival = a2width(nn)) >= 0)
 564                                 len = (size_t)ival;
 565                 }
 566
 567         switch (n->type) {
 568         case (MAN_HEAD):
 569                 /* Handle zero-width lengths. */
 570                 if (0 == len)
 571                         len = 1;
 572
 573                 p->offset = mt->offset;
 574                 p->rmargin = mt->offset + len;
 575                 if (ival < 0)
 576                         break;
 577
 578                 /* Set the saved left-margin. */
 579                 mt->lmargin = (size_t)ival;
 580
 581                 /* Don't print the length value. */
 582                 for (nn = n->child; nn->next; nn = nn->next)
 583                         print_man_node(p, mt, nn, m);
 584                 return(0);
 585         case (MAN_BODY):
 586                 p->offset = mt->offset + len;
 587                 p->rmargin = p->maxrmargin;
 588                 break;
 589         default:
 590                 break;
 591         }
 592
 593         return(1);
 594 }
 595
 596
 597 /* ARGSUSED */
 598 static void
 599 post_IP(DECL_ARGS)
 600 {
 601
 602         switch (n->type) {
 603         case (MAN_HEAD):
 604                 term_flushln(p);
 605                 p->flags &= ~TERMP_NOBREAK;
 606                 p->flags &= ~TERMP_TWOSPACE;
 607                 p->rmargin = p->maxrmargin;
 608                 break;
 609         case (MAN_BODY):
 610                 term_flushln(p);
 611                 p->flags &= ~TERMP_NOLPAD;
 612                 break;
 613         default:
 614                 break;
 615         }
 616 }
 617
 618
 619 /* ARGSUSED */
 620 static int
 621 pre_TP(DECL_ARGS)
 622 {
 623         const struct man_node   *nn;
 624         size_t                   len;
 625         int                      ival;
 626
 627         switch (n->type) {
 628         case (MAN_HEAD):
 629                 p->flags |= TERMP_NOBREAK;
 630                 p->flags |= TERMP_TWOSPACE;
 631                 break;
 632         case (MAN_BODY):
 633                 p->flags |= TERMP_NOLPAD;
 634                 p->flags |= TERMP_NOSPACE;
 635                 break;
 636         case (MAN_BLOCK):
 637                 print_bvspace(p, n);
 638                 /* FALLTHROUGH */
 639         default:
 640                 return(1);
 641         }
 642
 643         len = (size_t)mt->lmargin;
 644         ival = -1;
 645
 646         /* Calculate offset. */
 647
 648         if (NULL != (nn = n->parent->head->child))
 649                 if (NULL != nn->next)
 650                         if ((ival = a2width(nn)) >= 0)
 651                                 len = (size_t)ival;
 652
 653         switch (n->type) {
 654         case (MAN_HEAD):
 655                 /* Handle zero-length properly. */
 656                 if (0 == len)
 657                         len = 1;
 658
 659                 p->offset = mt->offset;
 660                 p->rmargin = mt->offset + len;
 661
 662                 /* Don't print same-line elements. */
 663                 for (nn = n->child; nn; nn = nn->next)
 664                         if (nn->line > n->line)
 665                                 print_man_node(p, mt, nn, m);
 666
 667                 if (ival >= 0)
 668                         mt->lmargin = (size_t)ival;
 669
 670                 return(0);
 671         case (MAN_BODY):
 672                 p->offset = mt->offset + len;
 673                 p->rmargin = p->maxrmargin;
 674                 break;
 675         default:
 676                 break;
 677         }
 678
 679         return(1);
 680 }
 681
 682
 683 /* ARGSUSED */
 684 static void
 685 post_TP(DECL_ARGS)
 686 {
 687
 688         switch (n->type) {
 689         case (MAN_HEAD):
 690                 term_flushln(p);
 691                 p->flags &= ~TERMP_NOBREAK;
 692                 p->flags &= ~TERMP_TWOSPACE;
 693                 p->rmargin = p->maxrmargin;
 694                 break;
 695         case (MAN_BODY):
 696                 term_flushln(p);
 697                 p->flags &= ~TERMP_NOLPAD;
 698                 break;
 699         default:
 700                 break;
 701         }
 702 }
 703
 704
 705 /* ARGSUSED */
 706 static int
 707 pre_SS(DECL_ARGS)
 708 {
 709
 710         switch (n->type) {
 711         case (MAN_BLOCK):
 712                 mt->lmargin = INDENT;
 713                 mt->offset = INDENT;
 714                 /* If following a prior empty `SS', no vspace. */
 715                 if (n->prev && MAN_SS == n->prev->tok)
 716                         if (NULL == n->prev->body->child)
 717                                 break;
 718                 if (NULL == n->prev)
 719                         break;
 720                 term_vspace(p);
 721                 break;
 722         case (MAN_HEAD):
 723                 p->bold++;
 724                 p->offset = HALFINDENT;
 725                 break;
 726         case (MAN_BODY):
 727                 p->offset = mt->offset;
 728                 break;
 729         default:
 730                 break;
 731         }
 732
 733         return(1);
 734 }
 735
 736
 737 /* ARGSUSED */
 738 static void
 739 post_SS(DECL_ARGS)
 740 {
 741
 742         switch (n->type) {
 743         case (MAN_HEAD):
 744                 term_newln(p);
 745                 p->bold--;
 746                 break;
 747         case (MAN_BODY):
 748                 term_newln(p);
 749                 break;
 750         default:
 751                 break;
 752         }
 753 }
 754
 755
 756 /* ARGSUSED */
 757 static int
 758 pre_SH(DECL_ARGS)
 759 {
 760
 761         switch (n->type) {
 762         case (MAN_BLOCK):
 763                 mt->lmargin = INDENT;
 764                 mt->offset = INDENT;
 765                 /* If following a prior empty `SH', no vspace. */
 766                 if (n->prev && MAN_SH == n->prev->tok)
 767                         if (NULL == n->prev->body->child)
 768                                 break;
 769                 term_vspace(p);
 770                 break;
 771         case (MAN_HEAD):
 772                 p->bold++;
 773                 p->offset = 0;
 774                 break;
 775         case (MAN_BODY):
 776                 p->offset = mt->offset;
 777                 break;
 778         default:
 779                 break;
 780         }
 781
 782         return(1);
 783 }
 784
 785
 786 /* ARGSUSED */
 787 static void
 788 post_SH(DECL_ARGS)
 789 {
 790
 791         switch (n->type) {
 792         case (MAN_HEAD):
 793                 term_newln(p);
 794                 p->bold--;
 795                 break;
 796         case (MAN_BODY):
 797                 term_newln(p);
 798                 break;
 799         default:
 800                 break;
 801         }
 802 }
 803
 804
 805 /* ARGSUSED */
 806 static int
 807 pre_RS(DECL_ARGS)
 808 {
 809         const struct man_node   *nn;
 810         int                      ival;
 811
 812         switch (n->type) {
 813         case (MAN_BLOCK):
 814                 term_newln(p);
 815                 return(1);
 816         case (MAN_HEAD):
 817                 return(0);
 818         default:
 819                 break;
 820         }
 821
 822         if (NULL == (nn = n->parent->head->child)) {
 823                 mt->offset = mt->lmargin + INDENT;
 824                 p->offset = mt->offset;
 825                 return(1);
 826         }
 827
 828         if ((ival = a2width(nn)) < 0)
 829                 return(1);
 830
 831         mt->offset = INDENT + (size_t)ival;
 832         p->offset = mt->offset;
 833
 834         return(1);
 835 }
 836
 837
 838 /* ARGSUSED */
 839 static void
 840 post_RS(DECL_ARGS)
 841 {
 842
 843         switch (n->type) {
 844         case (MAN_BLOCK):
 845                 mt->offset = mt->lmargin = INDENT;
 846                 break;
 847         default:
 848                 term_newln(p);
 849                 p->offset = INDENT;
 850                 break;
 851         }
 852 }
 853
 854
 855 static void
 856 print_man_node(DECL_ARGS)
 857 {
 858         int              c, sz;
 859
 860         c = 1;
 861
 862         switch (n->type) {
 863         case(MAN_TEXT):
 864                 if (0 == *n->string) {
 865                         term_vspace(p);
 866                         break;
 867                 }
 868                 /*
 869                  * Note!  This is hacky.  Here, we recognise the `\c'
 870                  * escape embedded in so many -man pages.  It's supposed
 871                  * to remove the subsequent space, so we mark NOSPACE if
 872                  * it's encountered in the string.
 873                  */
 874                 sz = (int)strlen(n->string);
 875                 term_word(p, n->string);
 876                 if (sz >= 2 && n->string[sz - 1] == 'c' &&
 877                                 n->string[sz - 2] == '\\')
 878                         p->flags |= TERMP_NOSPACE;
 879                 /* FIXME: this means that macro lines are munged!  */
 880                 if (MANT_LITERAL & mt->fl) {
 881                         p->flags |= TERMP_NOSPACE;
 882                         term_flushln(p);
 883                 }
 884                 break;
 885         default:
 886                 if (termacts[n->tok].pre)
 887                         c = (*termacts[n->tok].pre)(p, mt, n, m);
 888                 break;
 889         }
 890
 891         if (c && n->child)
 892                 print_man_body(p, mt, n->child, m);
 893
 894         if (MAN_TEXT != n->type)
 895                 if (termacts[n->tok].post)
 896                         (*termacts[n->tok].post)(p, mt, n, m);
 897 }
 898
 899
 900 static void
 901 print_man_body(DECL_ARGS)
 902 {
 903
 904         print_man_node(p, mt, n, m);
 905         if ( ! n->next)
 906                 return;
 907         print_man_body(p, mt, n->next, m);
 908 }
 909
 910
 911 static void
 912 print_man_foot(struct termp *p, const struct man_meta *meta)
 913 {
 914         char            buf[DATESIZ];
 915
 916         time2a(meta->date, buf, DATESIZ);
 917
 918         term_vspace(p);
 919
 920         p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
 921         p->rmargin = p->maxrmargin - strlen(buf);
 922         p->offset = 0;
 923
 924         if (meta->source)
 925                 term_word(p, meta->source);
 926         if (meta->source)
 927                 term_word(p, "");
 928         term_flushln(p);
 929
 930         p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
 931         p->offset = p->rmargin;
 932         p->rmargin = p->maxrmargin;
 933         p->flags &= ~TERMP_NOBREAK;
 934
 935         term_word(p, buf);
 936         term_flushln(p);
 937 }
 938
 939
 940 static void
 941 print_man_head(struct termp *p, const struct man_meta *m)
 942 {
 943         char            buf[BUFSIZ], title[BUFSIZ];
 944
 945         p->rmargin = p->maxrmargin;
 946         p->offset = 0;
 947         buf[0] = title[0] = '\0';
 948
 949         if (m->vol)
 950                 strlcpy(buf, m->vol, BUFSIZ);
 951
 952         snprintf(title, BUFSIZ, "%s(%d)", m->title, m->msec);
 953
 954         p->offset = 0;
 955         p->rmargin = (p->maxrmargin - strlen(buf) + 1) / 2;
 956         p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
 957
 958         term_word(p, title);
 959         term_flushln(p);
 960
 961         p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
 962         p->offset = p->rmargin;
 963         p->rmargin = p->maxrmargin - strlen(title);
 964
 965         term_word(p, buf);
 966         term_flushln(p);
 967
 968         p->offset = p->rmargin;
 969         p->rmargin = p->maxrmargin;
 970         p->flags &= ~TERMP_NOBREAK;
 971         p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
 972
 973         term_word(p, title);
 974         term_flushln(p);
 975
 976         p->rmargin = p->maxrmargin;
 977         p->offset = 0;
 978         p->flags &= ~TERMP_NOSPACE;
 979 }