1 /* $OpenBSD: mdoc_man.c,v 1.99 2017/01/11 17:39:45 schwarze Exp $ */ 2 /* 3 * Copyright (c) 2011-2017 Ingo Schwarze <schwarze@openbsd.org> 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 <stdio.h> 21 #include <string.h> 22 23 #include "mandoc_aux.h" 24 #include "mandoc.h" 25 #include "roff.h" 26 #include "mdoc.h" 27 #include "man.h" 28 #include "out.h" 29 #include "main.h" 30 31 #define DECL_ARGS const struct roff_meta *meta, struct roff_node *n 32 33 struct manact { 34 int (*cond)(DECL_ARGS); /* DON'T run actions */ 35 int (*pre)(DECL_ARGS); /* pre-node action */ 36 void (*post)(DECL_ARGS); /* post-node action */ 37 const char *prefix; /* pre-node string constant */ 38 const char *suffix; /* post-node string constant */ 39 }; 40 41 static int cond_body(DECL_ARGS); 42 static int cond_head(DECL_ARGS); 43 static void font_push(char); 44 static void font_pop(void); 45 static void mid_it(void); 46 static void post__t(DECL_ARGS); 47 static void post_aq(DECL_ARGS); 48 static void post_bd(DECL_ARGS); 49 static void post_bf(DECL_ARGS); 50 static void post_bk(DECL_ARGS); 51 static void post_bl(DECL_ARGS); 52 static void post_dl(DECL_ARGS); 53 static void post_en(DECL_ARGS); 54 static void post_enc(DECL_ARGS); 55 static void post_eo(DECL_ARGS); 56 static void post_fa(DECL_ARGS); 57 static void post_fd(DECL_ARGS); 58 static void post_fl(DECL_ARGS); 59 static void post_fn(DECL_ARGS); 60 static void post_fo(DECL_ARGS); 61 static void post_font(DECL_ARGS); 62 static void post_in(DECL_ARGS); 63 static void post_it(DECL_ARGS); 64 static void post_lb(DECL_ARGS); 65 static void post_nm(DECL_ARGS); 66 static void post_percent(DECL_ARGS); 67 static void post_pf(DECL_ARGS); 68 static void post_sect(DECL_ARGS); 69 static void post_sp(DECL_ARGS); 70 static void post_vt(DECL_ARGS); 71 static int pre__t(DECL_ARGS); 72 static int pre_an(DECL_ARGS); 73 static int pre_ap(DECL_ARGS); 74 static int pre_aq(DECL_ARGS); 75 static int pre_bd(DECL_ARGS); 76 static int pre_bf(DECL_ARGS); 77 static int pre_bk(DECL_ARGS); 78 static int pre_bl(DECL_ARGS); 79 static int pre_br(DECL_ARGS); 80 static int pre_dl(DECL_ARGS); 81 static int pre_en(DECL_ARGS); 82 static int pre_enc(DECL_ARGS); 83 static int pre_em(DECL_ARGS); 84 static int pre_skip(DECL_ARGS); 85 static int pre_eo(DECL_ARGS); 86 static int pre_ex(DECL_ARGS); 87 static int pre_fa(DECL_ARGS); 88 static int pre_fd(DECL_ARGS); 89 static int pre_fl(DECL_ARGS); 90 static int pre_fn(DECL_ARGS); 91 static int pre_fo(DECL_ARGS); 92 static int pre_ft(DECL_ARGS); 93 static int pre_in(DECL_ARGS); 94 static int pre_it(DECL_ARGS); 95 static int pre_lk(DECL_ARGS); 96 static int pre_li(DECL_ARGS); 97 static int pre_ll(DECL_ARGS); 98 static int pre_nm(DECL_ARGS); 99 static int pre_no(DECL_ARGS); 100 static int pre_ns(DECL_ARGS); 101 static int pre_pp(DECL_ARGS); 102 static int pre_rs(DECL_ARGS); 103 static int pre_sm(DECL_ARGS); 104 static int pre_sp(DECL_ARGS); 105 static int pre_sect(DECL_ARGS); 106 static int pre_sy(DECL_ARGS); 107 static void pre_syn(const struct roff_node *); 108 static int pre_vt(DECL_ARGS); 109 static int pre_xr(DECL_ARGS); 110 static void print_word(const char *); 111 static void print_line(const char *, int); 112 static void print_block(const char *, int); 113 static void print_offs(const char *, int); 114 static void print_width(const struct mdoc_bl *, 115 const struct roff_node *); 116 static void print_count(int *); 117 static void print_node(DECL_ARGS); 118 119 static const struct manact manacts[MDOC_MAX + 1] = { 120 { NULL, pre_ap, NULL, NULL, NULL }, /* Ap */ 121 { NULL, NULL, NULL, NULL, NULL }, /* Dd */ 122 { NULL, NULL, NULL, NULL, NULL }, /* Dt */ 123 { NULL, NULL, NULL, NULL, NULL }, /* Os */ 124 { NULL, pre_sect, post_sect, ".SH", NULL }, /* Sh */ 125 { NULL, pre_sect, post_sect, ".SS", NULL }, /* Ss */ 126 { NULL, pre_pp, NULL, NULL, NULL }, /* Pp */ 127 { cond_body, pre_dl, post_dl, NULL, NULL }, /* D1 */ 128 { cond_body, pre_dl, post_dl, NULL, NULL }, /* Dl */ 129 { cond_body, pre_bd, post_bd, NULL, NULL }, /* Bd */ 130 { NULL, NULL, NULL, NULL, NULL }, /* Ed */ 131 { cond_body, pre_bl, post_bl, NULL, NULL }, /* Bl */ 132 { NULL, NULL, NULL, NULL, NULL }, /* El */ 133 { NULL, pre_it, post_it, NULL, NULL }, /* It */ 134 { NULL, pre_em, post_font, NULL, NULL }, /* Ad */ 135 { NULL, pre_an, NULL, NULL, NULL }, /* An */ 136 { NULL, pre_em, post_font, NULL, NULL }, /* Ar */ 137 { NULL, pre_sy, post_font, NULL, NULL }, /* Cd */ 138 { NULL, pre_sy, post_font, NULL, NULL }, /* Cm */ 139 { NULL, pre_li, post_font, NULL, NULL }, /* Dv */ 140 { NULL, pre_li, post_font, NULL, NULL }, /* Er */ 141 { NULL, pre_li, post_font, NULL, NULL }, /* Ev */ 142 { NULL, pre_ex, NULL, NULL, NULL }, /* Ex */ 143 { NULL, pre_fa, post_fa, NULL, NULL }, /* Fa */ 144 { NULL, pre_fd, post_fd, NULL, NULL }, /* Fd */ 145 { NULL, pre_fl, post_fl, NULL, NULL }, /* Fl */ 146 { NULL, pre_fn, post_fn, NULL, NULL }, /* Fn */ 147 { NULL, pre_ft, post_font, NULL, NULL }, /* Ft */ 148 { NULL, pre_sy, post_font, NULL, NULL }, /* Ic */ 149 { NULL, pre_in, post_in, NULL, NULL }, /* In */ 150 { NULL, pre_li, post_font, NULL, NULL }, /* Li */ 151 { cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */ 152 { NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */ 153 { cond_body, pre_enc, post_enc, "[", "]" }, /* Op */ 154 { NULL, pre_ft, post_font, NULL, NULL }, /* Ot */ 155 { NULL, pre_em, post_font, NULL, NULL }, /* Pa */ 156 { NULL, pre_ex, NULL, NULL, NULL }, /* Rv */ 157 { NULL, NULL, NULL, NULL, NULL }, /* St */ 158 { NULL, pre_em, post_font, NULL, NULL }, /* Va */ 159 { NULL, pre_vt, post_vt, NULL, NULL }, /* Vt */ 160 { NULL, pre_xr, NULL, NULL, NULL }, /* Xr */ 161 { NULL, NULL, post_percent, NULL, NULL }, /* %A */ 162 { NULL, pre_em, post_percent, NULL, NULL }, /* %B */ 163 { NULL, NULL, post_percent, NULL, NULL }, /* %D */ 164 { NULL, pre_em, post_percent, NULL, NULL }, /* %I */ 165 { NULL, pre_em, post_percent, NULL, NULL }, /* %J */ 166 { NULL, NULL, post_percent, NULL, NULL }, /* %N */ 167 { NULL, NULL, post_percent, NULL, NULL }, /* %O */ 168 { NULL, NULL, post_percent, NULL, NULL }, /* %P */ 169 { NULL, NULL, post_percent, NULL, NULL }, /* %R */ 170 { NULL, pre__t, post__t, NULL, NULL }, /* %T */ 171 { NULL, NULL, post_percent, NULL, NULL }, /* %V */ 172 { NULL, NULL, NULL, NULL, NULL }, /* Ac */ 173 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Ao */ 174 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Aq */ 175 { NULL, NULL, NULL, NULL, NULL }, /* At */ 176 { NULL, NULL, NULL, NULL, NULL }, /* Bc */ 177 { NULL, pre_bf, post_bf, NULL, NULL }, /* Bf */ 178 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bo */ 179 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bq */ 180 { NULL, NULL, NULL, NULL, NULL }, /* Bsx */ 181 { NULL, NULL, NULL, NULL, NULL }, /* Bx */ 182 { NULL, pre_skip, NULL, NULL, NULL }, /* Db */ 183 { NULL, NULL, NULL, NULL, NULL }, /* Dc */ 184 { cond_body, pre_enc, post_enc, "\\(Lq", "\\(Rq" }, /* Do */ 185 { cond_body, pre_enc, post_enc, "\\(Lq", "\\(Rq" }, /* Dq */ 186 { NULL, NULL, NULL, NULL, NULL }, /* Ec */ 187 { NULL, NULL, NULL, NULL, NULL }, /* Ef */ 188 { NULL, pre_em, post_font, NULL, NULL }, /* Em */ 189 { cond_body, pre_eo, post_eo, NULL, NULL }, /* Eo */ 190 { NULL, NULL, NULL, NULL, NULL }, /* Fx */ 191 { NULL, pre_sy, post_font, NULL, NULL }, /* Ms */ 192 { NULL, pre_no, NULL, NULL, NULL }, /* No */ 193 { NULL, pre_ns, NULL, NULL, NULL }, /* Ns */ 194 { NULL, NULL, NULL, NULL, NULL }, /* Nx */ 195 { NULL, NULL, NULL, NULL, NULL }, /* Ox */ 196 { NULL, NULL, NULL, NULL, NULL }, /* Pc */ 197 { NULL, NULL, post_pf, NULL, NULL }, /* Pf */ 198 { cond_body, pre_enc, post_enc, "(", ")" }, /* Po */ 199 { cond_body, pre_enc, post_enc, "(", ")" }, /* Pq */ 200 { NULL, NULL, NULL, NULL, NULL }, /* Qc */ 201 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Ql */ 202 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qo */ 203 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qq */ 204 { NULL, NULL, NULL, NULL, NULL }, /* Re */ 205 { cond_body, pre_rs, NULL, NULL, NULL }, /* Rs */ 206 { NULL, NULL, NULL, NULL, NULL }, /* Sc */ 207 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* So */ 208 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Sq */ 209 { NULL, pre_sm, NULL, NULL, NULL }, /* Sm */ 210 { NULL, pre_em, post_font, NULL, NULL }, /* Sx */ 211 { NULL, pre_sy, post_font, NULL, NULL }, /* Sy */ 212 { NULL, pre_li, post_font, NULL, NULL }, /* Tn */ 213 { NULL, NULL, NULL, NULL, NULL }, /* Ux */ 214 { NULL, NULL, NULL, NULL, NULL }, /* Xc */ 215 { NULL, NULL, NULL, NULL, NULL }, /* Xo */ 216 { NULL, pre_fo, post_fo, NULL, NULL }, /* Fo */ 217 { NULL, NULL, NULL, NULL, NULL }, /* Fc */ 218 { cond_body, pre_enc, post_enc, "[", "]" }, /* Oo */ 219 { NULL, NULL, NULL, NULL, NULL }, /* Oc */ 220 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bk */ 221 { NULL, NULL, NULL, NULL, NULL }, /* Ek */ 222 { NULL, NULL, NULL, NULL, NULL }, /* Bt */ 223 { NULL, NULL, NULL, NULL, NULL }, /* Hf */ 224 { NULL, pre_em, post_font, NULL, NULL }, /* Fr */ 225 { NULL, NULL, NULL, NULL, NULL }, /* Ud */ 226 { NULL, NULL, post_lb, NULL, NULL }, /* Lb */ 227 { NULL, pre_pp, NULL, NULL, NULL }, /* Lp */ 228 { NULL, pre_lk, NULL, NULL, NULL }, /* Lk */ 229 { NULL, pre_em, post_font, NULL, NULL }, /* Mt */ 230 { cond_body, pre_enc, post_enc, "{", "}" }, /* Brq */ 231 { cond_body, pre_enc, post_enc, "{", "}" }, /* Bro */ 232 { NULL, NULL, NULL, NULL, NULL }, /* Brc */ 233 { NULL, NULL, post_percent, NULL, NULL }, /* %C */ 234 { NULL, pre_skip, NULL, NULL, NULL }, /* Es */ 235 { cond_body, pre_en, post_en, NULL, NULL }, /* En */ 236 { NULL, NULL, NULL, NULL, NULL }, /* Dx */ 237 { NULL, NULL, post_percent, NULL, NULL }, /* %Q */ 238 { NULL, pre_br, NULL, NULL, NULL }, /* br */ 239 { NULL, pre_sp, post_sp, NULL, NULL }, /* sp */ 240 { NULL, NULL, post_percent, NULL, NULL }, /* %U */ 241 { NULL, NULL, NULL, NULL, NULL }, /* Ta */ 242 { NULL, pre_ll, post_sp, NULL, NULL }, /* ll */ 243 { NULL, NULL, NULL, NULL, NULL }, /* ROOT */ 244 }; 245 246 static int outflags; 247 #define MMAN_spc (1 << 0) /* blank character before next word */ 248 #define MMAN_spc_force (1 << 1) /* even before trailing punctuation */ 249 #define MMAN_nl (1 << 2) /* break man(7) code line */ 250 #define MMAN_br (1 << 3) /* break output line */ 251 #define MMAN_sp (1 << 4) /* insert a blank output line */ 252 #define MMAN_PP (1 << 5) /* reset indentation etc. */ 253 #define MMAN_Sm (1 << 6) /* horizontal spacing mode */ 254 #define MMAN_Bk (1 << 7) /* word keep mode */ 255 #define MMAN_Bk_susp (1 << 8) /* suspend this (after a macro) */ 256 #define MMAN_An_split (1 << 9) /* author mode is "split" */ 257 #define MMAN_An_nosplit (1 << 10) /* author mode is "nosplit" */ 258 #define MMAN_PD (1 << 11) /* inter-paragraph spacing disabled */ 259 #define MMAN_nbrword (1 << 12) /* do not break the next word */ 260 261 #define BL_STACK_MAX 32 262 263 static int Bl_stack[BL_STACK_MAX]; /* offsets [chars] */ 264 static int Bl_stack_post[BL_STACK_MAX]; /* add final .RE */ 265 static int Bl_stack_len; /* number of nested Bl blocks */ 266 static int TPremain; /* characters before tag is full */ 267 268 static struct { 269 char *head; 270 char *tail; 271 size_t size; 272 } fontqueue; 273 274 275 static void 276 font_push(char newfont) 277 { 278 279 if (fontqueue.head + fontqueue.size <= ++fontqueue.tail) { 280 fontqueue.size += 8; 281 fontqueue.head = mandoc_realloc(fontqueue.head, 282 fontqueue.size); 283 } 284 *fontqueue.tail = newfont; 285 print_word(""); 286 printf("\\f"); 287 putchar(newfont); 288 outflags &= ~MMAN_spc; 289 } 290 291 static void 292 font_pop(void) 293 { 294 295 if (fontqueue.tail > fontqueue.head) 296 fontqueue.tail--; 297 outflags &= ~MMAN_spc; 298 print_word(""); 299 printf("\\f"); 300 putchar(*fontqueue.tail); 301 } 302 303 static void 304 print_word(const char *s) 305 { 306 307 if ((MMAN_PP | MMAN_sp | MMAN_br | MMAN_nl) & outflags) { 308 /* 309 * If we need a newline, print it now and start afresh. 310 */ 311 if (MMAN_PP & outflags) { 312 if (MMAN_sp & outflags) { 313 if (MMAN_PD & outflags) { 314 printf("\n.PD"); 315 outflags &= ~MMAN_PD; 316 } 317 } else if ( ! (MMAN_PD & outflags)) { 318 printf("\n.PD 0"); 319 outflags |= MMAN_PD; 320 } 321 printf("\n.PP\n"); 322 } else if (MMAN_sp & outflags) 323 printf("\n.sp\n"); 324 else if (MMAN_br & outflags) 325 printf("\n.br\n"); 326 else if (MMAN_nl & outflags) 327 putchar('\n'); 328 outflags &= ~(MMAN_PP|MMAN_sp|MMAN_br|MMAN_nl|MMAN_spc); 329 if (1 == TPremain) 330 printf(".br\n"); 331 TPremain = 0; 332 } else if (MMAN_spc & outflags) { 333 /* 334 * If we need a space, only print it if 335 * (1) it is forced by `No' or 336 * (2) what follows is not terminating punctuation or 337 * (3) what follows is longer than one character. 338 */ 339 if (MMAN_spc_force & outflags || '\0' == s[0] || 340 NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1]) { 341 if (MMAN_Bk & outflags && 342 ! (MMAN_Bk_susp & outflags)) 343 putchar('\\'); 344 putchar(' '); 345 if (TPremain) 346 TPremain--; 347 } 348 } 349 350 /* 351 * Reassign needing space if we're not following opening 352 * punctuation. 353 */ 354 if (MMAN_Sm & outflags && ('\0' == s[0] || 355 (('(' != s[0] && '[' != s[0]) || '\0' != s[1]))) 356 outflags |= MMAN_spc; 357 else 358 outflags &= ~MMAN_spc; 359 outflags &= ~(MMAN_spc_force | MMAN_Bk_susp); 360 361 for ( ; *s; s++) { 362 switch (*s) { 363 case ASCII_NBRSP: 364 printf("\\ "); 365 break; 366 case ASCII_HYPH: 367 putchar('-'); 368 break; 369 case ASCII_BREAK: 370 printf("\\:"); 371 break; 372 case ' ': 373 if (MMAN_nbrword & outflags) { 374 printf("\\ "); 375 break; 376 } 377 /* FALLTHROUGH */ 378 default: 379 putchar((unsigned char)*s); 380 break; 381 } 382 if (TPremain) 383 TPremain--; 384 } 385 outflags &= ~MMAN_nbrword; 386 } 387 388 static void 389 print_line(const char *s, int newflags) 390 { 391 392 outflags &= ~MMAN_br; 393 outflags |= MMAN_nl; 394 print_word(s); 395 outflags |= newflags; 396 } 397 398 static void 399 print_block(const char *s, int newflags) 400 { 401 402 outflags &= ~MMAN_PP; 403 if (MMAN_sp & outflags) { 404 outflags &= ~(MMAN_sp | MMAN_br); 405 if (MMAN_PD & outflags) { 406 print_line(".PD", 0); 407 outflags &= ~MMAN_PD; 408 } 409 } else if (! (MMAN_PD & outflags)) 410 print_line(".PD 0", MMAN_PD); 411 outflags |= MMAN_nl; 412 print_word(s); 413 outflags |= MMAN_Bk_susp | newflags; 414 } 415 416 static void 417 print_offs(const char *v, int keywords) 418 { 419 char buf[24]; 420 struct roffsu su; 421 int sz; 422 423 print_line(".RS", MMAN_Bk_susp); 424 425 /* Convert v into a number (of characters). */ 426 if (NULL == v || '\0' == *v || (keywords && !strcmp(v, "left"))) 427 sz = 0; 428 else if (keywords && !strcmp(v, "indent")) 429 sz = 6; 430 else if (keywords && !strcmp(v, "indent-two")) 431 sz = 12; 432 else if (a2roffsu(v, &su, SCALE_EN) > 1) { 433 if (SCALE_EN == su.unit) 434 sz = su.scale; 435 else { 436 /* 437 * XXX 438 * If we are inside an enclosing list, 439 * there is no easy way to add the two 440 * indentations because they are provided 441 * in terms of different units. 442 */ 443 print_word(v); 444 outflags |= MMAN_nl; 445 return; 446 } 447 } else 448 sz = strlen(v); 449 450 /* 451 * We are inside an enclosing list. 452 * Add the two indentations. 453 */ 454 if (Bl_stack_len) 455 sz += Bl_stack[Bl_stack_len - 1]; 456 457 (void)snprintf(buf, sizeof(buf), "%dn", sz); 458 print_word(buf); 459 outflags |= MMAN_nl; 460 } 461 462 /* 463 * Set up the indentation for a list item; used from pre_it(). 464 */ 465 static void 466 print_width(const struct mdoc_bl *bl, const struct roff_node *child) 467 { 468 char buf[24]; 469 struct roffsu su; 470 int numeric, remain, sz, chsz; 471 472 numeric = 1; 473 remain = 0; 474 475 /* Convert the width into a number (of characters). */ 476 if (bl->width == NULL) 477 sz = (bl->type == LIST_hang) ? 6 : 0; 478 else if (a2roffsu(bl->width, &su, SCALE_MAX) > 1) { 479 if (SCALE_EN == su.unit) 480 sz = su.scale; 481 else { 482 sz = 0; 483 numeric = 0; 484 } 485 } else 486 sz = strlen(bl->width); 487 488 /* XXX Rough estimation, might have multiple parts. */ 489 if (bl->type == LIST_enum) 490 chsz = (bl->count > 8) + 1; 491 else if (child != NULL && child->type == ROFFT_TEXT) 492 chsz = strlen(child->string); 493 else 494 chsz = 0; 495 496 /* Maybe we are inside an enclosing list? */ 497 mid_it(); 498 499 /* 500 * Save our own indentation, 501 * such that child lists can use it. 502 */ 503 Bl_stack[Bl_stack_len++] = sz + 2; 504 505 /* Set up the current list. */ 506 if (chsz > sz && bl->type != LIST_tag) 507 print_block(".HP", 0); 508 else { 509 print_block(".TP", 0); 510 remain = sz + 2; 511 } 512 if (numeric) { 513 (void)snprintf(buf, sizeof(buf), "%dn", sz + 2); 514 print_word(buf); 515 } else 516 print_word(bl->width); 517 TPremain = remain; 518 } 519 520 static void 521 print_count(int *count) 522 { 523 char buf[24]; 524 525 (void)snprintf(buf, sizeof(buf), "%d.\\&", ++*count); 526 print_word(buf); 527 } 528 529 void 530 man_man(void *arg, const struct roff_man *man) 531 { 532 533 /* 534 * Dump the keep buffer. 535 * We're guaranteed by now that this exists (is non-NULL). 536 * Flush stdout afterward, just in case. 537 */ 538 fputs(mparse_getkeep(man_mparse(man)), stdout); 539 fflush(stdout); 540 } 541 542 void 543 man_mdoc(void *arg, const struct roff_man *mdoc) 544 { 545 struct roff_node *n; 546 547 printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"\n", 548 mdoc->meta.title, 549 (mdoc->meta.msec == NULL ? "" : mdoc->meta.msec), 550 mdoc->meta.date, mdoc->meta.os, mdoc->meta.vol); 551 552 /* Disable hyphenation and if nroff, disable justification. */ 553 printf(".nh\n.if n .ad l"); 554 555 outflags = MMAN_nl | MMAN_Sm; 556 if (0 == fontqueue.size) { 557 fontqueue.size = 8; 558 fontqueue.head = fontqueue.tail = mandoc_malloc(8); 559 *fontqueue.tail = 'R'; 560 } 561 for (n = mdoc->first->child; n != NULL; n = n->next) 562 print_node(&mdoc->meta, n); 563 putchar('\n'); 564 } 565 566 static void 567 print_node(DECL_ARGS) 568 { 569 const struct manact *act; 570 struct roff_node *sub; 571 int cond, do_sub; 572 573 if (n->flags & NODE_NOPRT) 574 return; 575 576 /* 577 * Break the line if we were parsed subsequent the current node. 578 * This makes the page structure be more consistent. 579 */ 580 if (MMAN_spc & outflags && NODE_LINE & n->flags) 581 outflags |= MMAN_nl; 582 583 act = NULL; 584 cond = 0; 585 do_sub = 1; 586 n->flags &= ~NODE_ENDED; 587 588 if (n->type == ROFFT_TEXT) { 589 /* 590 * Make sure that we don't happen to start with a 591 * control character at the start of a line. 592 */ 593 if (MMAN_nl & outflags && 594 ('.' == *n->string || '\'' == *n->string)) { 595 print_word(""); 596 printf("\\&"); 597 outflags &= ~MMAN_spc; 598 } 599 if (n->flags & NODE_DELIMC) 600 outflags &= ~(MMAN_spc | MMAN_spc_force); 601 else if (outflags & MMAN_Sm) 602 outflags |= MMAN_spc_force; 603 print_word(n->string); 604 if (n->flags & NODE_DELIMO) 605 outflags &= ~(MMAN_spc | MMAN_spc_force); 606 else if (outflags & MMAN_Sm) 607 outflags |= MMAN_spc; 608 } else { 609 /* 610 * Conditionally run the pre-node action handler for a 611 * node. 612 */ 613 act = manacts + n->tok; 614 cond = act->cond == NULL || (*act->cond)(meta, n); 615 if (cond && act->pre != NULL && 616 (n->end == ENDBODY_NOT || n->child != NULL)) 617 do_sub = (*act->pre)(meta, n); 618 } 619 620 /* 621 * Conditionally run all child nodes. 622 * Note that this iterates over children instead of using 623 * recursion. This prevents unnecessary depth in the stack. 624 */ 625 if (do_sub) 626 for (sub = n->child; sub; sub = sub->next) 627 print_node(meta, sub); 628 629 /* 630 * Lastly, conditionally run the post-node handler. 631 */ 632 if (NODE_ENDED & n->flags) 633 return; 634 635 if (cond && act->post) 636 (*act->post)(meta, n); 637 638 if (ENDBODY_NOT != n->end) 639 n->body->flags |= NODE_ENDED; 640 641 if (ENDBODY_NOSPACE == n->end) 642 outflags &= ~(MMAN_spc | MMAN_nl); 643 } 644 645 static int 646 cond_head(DECL_ARGS) 647 { 648 649 return n->type == ROFFT_HEAD; 650 } 651 652 static int 653 cond_body(DECL_ARGS) 654 { 655 656 return n->type == ROFFT_BODY; 657 } 658 659 static int 660 pre_enc(DECL_ARGS) 661 { 662 const char *prefix; 663 664 prefix = manacts[n->tok].prefix; 665 if (NULL == prefix) 666 return 1; 667 print_word(prefix); 668 outflags &= ~MMAN_spc; 669 return 1; 670 } 671 672 static void 673 post_enc(DECL_ARGS) 674 { 675 const char *suffix; 676 677 suffix = manacts[n->tok].suffix; 678 if (NULL == suffix) 679 return; 680 outflags &= ~(MMAN_spc | MMAN_nl); 681 print_word(suffix); 682 } 683 684 static int 685 pre_ex(DECL_ARGS) 686 { 687 outflags |= MMAN_br | MMAN_nl; 688 return 1; 689 } 690 691 static void 692 post_font(DECL_ARGS) 693 { 694 695 font_pop(); 696 } 697 698 static void 699 post_percent(DECL_ARGS) 700 { 701 702 if (pre_em == manacts[n->tok].pre) 703 font_pop(); 704 if (n->next) { 705 print_word(","); 706 if (n->prev && n->prev->tok == n->tok && 707 n->next->tok == n->tok) 708 print_word("and"); 709 } else { 710 print_word("."); 711 outflags |= MMAN_nl; 712 } 713 } 714 715 static int 716 pre__t(DECL_ARGS) 717 { 718 719 if (n->parent && MDOC_Rs == n->parent->tok && 720 n->parent->norm->Rs.quote_T) { 721 print_word(""); 722 putchar('\"'); 723 outflags &= ~MMAN_spc; 724 } else 725 font_push('I'); 726 return 1; 727 } 728 729 static void 730 post__t(DECL_ARGS) 731 { 732 733 if (n->parent && MDOC_Rs == n->parent->tok && 734 n->parent->norm->Rs.quote_T) { 735 outflags &= ~MMAN_spc; 736 print_word(""); 737 putchar('\"'); 738 } else 739 font_pop(); 740 post_percent(meta, n); 741 } 742 743 /* 744 * Print before a section header. 745 */ 746 static int 747 pre_sect(DECL_ARGS) 748 { 749 750 if (n->type == ROFFT_HEAD) { 751 outflags |= MMAN_sp; 752 print_block(manacts[n->tok].prefix, 0); 753 print_word(""); 754 putchar('\"'); 755 outflags &= ~MMAN_spc; 756 } 757 return 1; 758 } 759 760 /* 761 * Print subsequent a section header. 762 */ 763 static void 764 post_sect(DECL_ARGS) 765 { 766 767 if (n->type != ROFFT_HEAD) 768 return; 769 outflags &= ~MMAN_spc; 770 print_word(""); 771 putchar('\"'); 772 outflags |= MMAN_nl; 773 if (MDOC_Sh == n->tok && SEC_AUTHORS == n->sec) 774 outflags &= ~(MMAN_An_split | MMAN_An_nosplit); 775 } 776 777 /* See mdoc_term.c, synopsis_pre() for comments. */ 778 static void 779 pre_syn(const struct roff_node *n) 780 { 781 782 if (NULL == n->prev || ! (NODE_SYNPRETTY & n->flags)) 783 return; 784 785 if (n->prev->tok == n->tok && 786 MDOC_Ft != n->tok && 787 MDOC_Fo != n->tok && 788 MDOC_Fn != n->tok) { 789 outflags |= MMAN_br; 790 return; 791 } 792 793 switch (n->prev->tok) { 794 case MDOC_Fd: 795 case MDOC_Fn: 796 case MDOC_Fo: 797 case MDOC_In: 798 case MDOC_Vt: 799 outflags |= MMAN_sp; 800 break; 801 case MDOC_Ft: 802 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) { 803 outflags |= MMAN_sp; 804 break; 805 } 806 /* FALLTHROUGH */ 807 default: 808 outflags |= MMAN_br; 809 break; 810 } 811 } 812 813 static int 814 pre_an(DECL_ARGS) 815 { 816 817 switch (n->norm->An.auth) { 818 case AUTH_split: 819 outflags &= ~MMAN_An_nosplit; 820 outflags |= MMAN_An_split; 821 return 0; 822 case AUTH_nosplit: 823 outflags &= ~MMAN_An_split; 824 outflags |= MMAN_An_nosplit; 825 return 0; 826 default: 827 if (MMAN_An_split & outflags) 828 outflags |= MMAN_br; 829 else if (SEC_AUTHORS == n->sec && 830 ! (MMAN_An_nosplit & outflags)) 831 outflags |= MMAN_An_split; 832 return 1; 833 } 834 } 835 836 static int 837 pre_ap(DECL_ARGS) 838 { 839 840 outflags &= ~MMAN_spc; 841 print_word("'"); 842 outflags &= ~MMAN_spc; 843 return 0; 844 } 845 846 static int 847 pre_aq(DECL_ARGS) 848 { 849 850 print_word(n->child != NULL && n->child->next == NULL && 851 n->child->tok == MDOC_Mt ? "<" : "\\(la"); 852 outflags &= ~MMAN_spc; 853 return 1; 854 } 855 856 static void 857 post_aq(DECL_ARGS) 858 { 859 860 outflags &= ~(MMAN_spc | MMAN_nl); 861 print_word(n->child != NULL && n->child->next == NULL && 862 n->child->tok == MDOC_Mt ? ">" : "\\(ra"); 863 } 864 865 static int 866 pre_bd(DECL_ARGS) 867 { 868 869 outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br); 870 871 if (DISP_unfilled == n->norm->Bd.type || 872 DISP_literal == n->norm->Bd.type) 873 print_line(".nf", 0); 874 if (0 == n->norm->Bd.comp && NULL != n->parent->prev) 875 outflags |= MMAN_sp; 876 print_offs(n->norm->Bd.offs, 1); 877 return 1; 878 } 879 880 static void 881 post_bd(DECL_ARGS) 882 { 883 884 /* Close out this display. */ 885 print_line(".RE", MMAN_nl); 886 if (DISP_unfilled == n->norm->Bd.type || 887 DISP_literal == n->norm->Bd.type) 888 print_line(".fi", MMAN_nl); 889 890 /* Maybe we are inside an enclosing list? */ 891 if (NULL != n->parent->next) 892 mid_it(); 893 } 894 895 static int 896 pre_bf(DECL_ARGS) 897 { 898 899 switch (n->type) { 900 case ROFFT_BLOCK: 901 return 1; 902 case ROFFT_BODY: 903 break; 904 default: 905 return 0; 906 } 907 switch (n->norm->Bf.font) { 908 case FONT_Em: 909 font_push('I'); 910 break; 911 case FONT_Sy: 912 font_push('B'); 913 break; 914 default: 915 font_push('R'); 916 break; 917 } 918 return 1; 919 } 920 921 static void 922 post_bf(DECL_ARGS) 923 { 924 925 if (n->type == ROFFT_BODY) 926 font_pop(); 927 } 928 929 static int 930 pre_bk(DECL_ARGS) 931 { 932 933 switch (n->type) { 934 case ROFFT_BLOCK: 935 return 1; 936 case ROFFT_BODY: 937 outflags |= MMAN_Bk; 938 return 1; 939 default: 940 return 0; 941 } 942 } 943 944 static void 945 post_bk(DECL_ARGS) 946 { 947 948 if (n->type == ROFFT_BODY) 949 outflags &= ~MMAN_Bk; 950 } 951 952 static int 953 pre_bl(DECL_ARGS) 954 { 955 size_t icol; 956 957 /* 958 * print_offs() will increase the -offset to account for 959 * a possible enclosing .It, but any enclosed .It blocks 960 * just nest and do not add up their indentation. 961 */ 962 if (n->norm->Bl.offs) { 963 print_offs(n->norm->Bl.offs, 0); 964 Bl_stack[Bl_stack_len++] = 0; 965 } 966 967 switch (n->norm->Bl.type) { 968 case LIST_enum: 969 n->norm->Bl.count = 0; 970 return 1; 971 case LIST_column: 972 break; 973 default: 974 return 1; 975 } 976 977 if (n->child != NULL) { 978 print_line(".TS", MMAN_nl); 979 for (icol = 0; icol < n->norm->Bl.ncols; icol++) 980 print_word("l"); 981 print_word("."); 982 } 983 outflags |= MMAN_nl; 984 return 1; 985 } 986 987 static void 988 post_bl(DECL_ARGS) 989 { 990 991 switch (n->norm->Bl.type) { 992 case LIST_column: 993 if (n->child != NULL) 994 print_line(".TE", 0); 995 break; 996 case LIST_enum: 997 n->norm->Bl.count = 0; 998 break; 999 default: 1000 break; 1001 } 1002 1003 if (n->norm->Bl.offs) { 1004 print_line(".RE", MMAN_nl); 1005 assert(Bl_stack_len); 1006 Bl_stack_len--; 1007 assert(0 == Bl_stack[Bl_stack_len]); 1008 } else { 1009 outflags |= MMAN_PP | MMAN_nl; 1010 outflags &= ~(MMAN_sp | MMAN_br); 1011 } 1012 1013 /* Maybe we are inside an enclosing list? */ 1014 if (NULL != n->parent->next) 1015 mid_it(); 1016 1017 } 1018 1019 static int 1020 pre_br(DECL_ARGS) 1021 { 1022 1023 outflags |= MMAN_br; 1024 return 0; 1025 } 1026 1027 static int 1028 pre_dl(DECL_ARGS) 1029 { 1030 1031 print_offs("6n", 0); 1032 return 1; 1033 } 1034 1035 static void 1036 post_dl(DECL_ARGS) 1037 { 1038 1039 print_line(".RE", MMAN_nl); 1040 1041 /* Maybe we are inside an enclosing list? */ 1042 if (NULL != n->parent->next) 1043 mid_it(); 1044 } 1045 1046 static int 1047 pre_em(DECL_ARGS) 1048 { 1049 1050 font_push('I'); 1051 return 1; 1052 } 1053 1054 static int 1055 pre_en(DECL_ARGS) 1056 { 1057 1058 if (NULL == n->norm->Es || 1059 NULL == n->norm->Es->child) 1060 return 1; 1061 1062 print_word(n->norm->Es->child->string); 1063 outflags &= ~MMAN_spc; 1064 return 1; 1065 } 1066 1067 static void 1068 post_en(DECL_ARGS) 1069 { 1070 1071 if (NULL == n->norm->Es || 1072 NULL == n->norm->Es->child || 1073 NULL == n->norm->Es->child->next) 1074 return; 1075 1076 outflags &= ~MMAN_spc; 1077 print_word(n->norm->Es->child->next->string); 1078 return; 1079 } 1080 1081 static int 1082 pre_eo(DECL_ARGS) 1083 { 1084 1085 if (n->end == ENDBODY_NOT && 1086 n->parent->head->child == NULL && 1087 n->child != NULL && 1088 n->child->end != ENDBODY_NOT) 1089 print_word("\\&"); 1090 else if (n->end != ENDBODY_NOT ? n->child != NULL : 1091 n->parent->head->child != NULL && (n->child != NULL || 1092 (n->parent->tail != NULL && n->parent->tail->child != NULL))) 1093 outflags &= ~(MMAN_spc | MMAN_nl); 1094 return 1; 1095 } 1096 1097 static void 1098 post_eo(DECL_ARGS) 1099 { 1100 int body, tail; 1101 1102 if (n->end != ENDBODY_NOT) { 1103 outflags |= MMAN_spc; 1104 return; 1105 } 1106 1107 body = n->child != NULL || n->parent->head->child != NULL; 1108 tail = n->parent->tail != NULL && n->parent->tail->child != NULL; 1109 1110 if (body && tail) 1111 outflags &= ~MMAN_spc; 1112 else if ( ! (body || tail)) 1113 print_word("\\&"); 1114 else if ( ! tail) 1115 outflags |= MMAN_spc; 1116 } 1117 1118 static int 1119 pre_fa(DECL_ARGS) 1120 { 1121 int am_Fa; 1122 1123 am_Fa = MDOC_Fa == n->tok; 1124 1125 if (am_Fa) 1126 n = n->child; 1127 1128 while (NULL != n) { 1129 font_push('I'); 1130 if (am_Fa || NODE_SYNPRETTY & n->flags) 1131 outflags |= MMAN_nbrword; 1132 print_node(meta, n); 1133 font_pop(); 1134 if (NULL != (n = n->next)) 1135 print_word(","); 1136 } 1137 return 0; 1138 } 1139 1140 static void 1141 post_fa(DECL_ARGS) 1142 { 1143 1144 if (NULL != n->next && MDOC_Fa == n->next->tok) 1145 print_word(","); 1146 } 1147 1148 static int 1149 pre_fd(DECL_ARGS) 1150 { 1151 1152 pre_syn(n); 1153 font_push('B'); 1154 return 1; 1155 } 1156 1157 static void 1158 post_fd(DECL_ARGS) 1159 { 1160 1161 font_pop(); 1162 outflags |= MMAN_br; 1163 } 1164 1165 static int 1166 pre_fl(DECL_ARGS) 1167 { 1168 1169 font_push('B'); 1170 print_word("\\-"); 1171 if (n->child != NULL) 1172 outflags &= ~MMAN_spc; 1173 return 1; 1174 } 1175 1176 static void 1177 post_fl(DECL_ARGS) 1178 { 1179 1180 font_pop(); 1181 if (!(n->child != NULL || 1182 n->next == NULL || 1183 n->next->type == ROFFT_TEXT || 1184 n->next->flags & NODE_LINE)) 1185 outflags &= ~MMAN_spc; 1186 } 1187 1188 static int 1189 pre_fn(DECL_ARGS) 1190 { 1191 1192 pre_syn(n); 1193 1194 n = n->child; 1195 if (NULL == n) 1196 return 0; 1197 1198 if (NODE_SYNPRETTY & n->flags) 1199 print_block(".HP 4n", MMAN_nl); 1200 1201 font_push('B'); 1202 print_node(meta, n); 1203 font_pop(); 1204 outflags &= ~MMAN_spc; 1205 print_word("("); 1206 outflags &= ~MMAN_spc; 1207 1208 n = n->next; 1209 if (NULL != n) 1210 pre_fa(meta, n); 1211 return 0; 1212 } 1213 1214 static void 1215 post_fn(DECL_ARGS) 1216 { 1217 1218 print_word(")"); 1219 if (NODE_SYNPRETTY & n->flags) { 1220 print_word(";"); 1221 outflags |= MMAN_PP; 1222 } 1223 } 1224 1225 static int 1226 pre_fo(DECL_ARGS) 1227 { 1228 1229 switch (n->type) { 1230 case ROFFT_BLOCK: 1231 pre_syn(n); 1232 break; 1233 case ROFFT_HEAD: 1234 if (n->child == NULL) 1235 return 0; 1236 if (NODE_SYNPRETTY & n->flags) 1237 print_block(".HP 4n", MMAN_nl); 1238 font_push('B'); 1239 break; 1240 case ROFFT_BODY: 1241 outflags &= ~(MMAN_spc | MMAN_nl); 1242 print_word("("); 1243 outflags &= ~MMAN_spc; 1244 break; 1245 default: 1246 break; 1247 } 1248 return 1; 1249 } 1250 1251 static void 1252 post_fo(DECL_ARGS) 1253 { 1254 1255 switch (n->type) { 1256 case ROFFT_HEAD: 1257 if (n->child != NULL) 1258 font_pop(); 1259 break; 1260 case ROFFT_BODY: 1261 post_fn(meta, n); 1262 break; 1263 default: 1264 break; 1265 } 1266 } 1267 1268 static int 1269 pre_ft(DECL_ARGS) 1270 { 1271 1272 pre_syn(n); 1273 font_push('I'); 1274 return 1; 1275 } 1276 1277 static int 1278 pre_in(DECL_ARGS) 1279 { 1280 1281 if (NODE_SYNPRETTY & n->flags) { 1282 pre_syn(n); 1283 font_push('B'); 1284 print_word("#include <"); 1285 outflags &= ~MMAN_spc; 1286 } else { 1287 print_word("<"); 1288 outflags &= ~MMAN_spc; 1289 font_push('I'); 1290 } 1291 return 1; 1292 } 1293 1294 static void 1295 post_in(DECL_ARGS) 1296 { 1297 1298 if (NODE_SYNPRETTY & n->flags) { 1299 outflags &= ~MMAN_spc; 1300 print_word(">"); 1301 font_pop(); 1302 outflags |= MMAN_br; 1303 } else { 1304 font_pop(); 1305 outflags &= ~MMAN_spc; 1306 print_word(">"); 1307 } 1308 } 1309 1310 static int 1311 pre_it(DECL_ARGS) 1312 { 1313 const struct roff_node *bln; 1314 1315 switch (n->type) { 1316 case ROFFT_HEAD: 1317 outflags |= MMAN_PP | MMAN_nl; 1318 bln = n->parent->parent; 1319 if (0 == bln->norm->Bl.comp || 1320 (NULL == n->parent->prev && 1321 NULL == bln->parent->prev)) 1322 outflags |= MMAN_sp; 1323 outflags &= ~MMAN_br; 1324 switch (bln->norm->Bl.type) { 1325 case LIST_item: 1326 return 0; 1327 case LIST_inset: 1328 case LIST_diag: 1329 case LIST_ohang: 1330 if (bln->norm->Bl.type == LIST_diag) 1331 print_line(".B \"", 0); 1332 else 1333 print_line(".R \"", 0); 1334 outflags &= ~MMAN_spc; 1335 return 1; 1336 case LIST_bullet: 1337 case LIST_dash: 1338 case LIST_hyphen: 1339 print_width(&bln->norm->Bl, NULL); 1340 TPremain = 0; 1341 outflags |= MMAN_nl; 1342 font_push('B'); 1343 if (LIST_bullet == bln->norm->Bl.type) 1344 print_word("\\(bu"); 1345 else 1346 print_word("-"); 1347 font_pop(); 1348 outflags |= MMAN_nl; 1349 return 0; 1350 case LIST_enum: 1351 print_width(&bln->norm->Bl, NULL); 1352 TPremain = 0; 1353 outflags |= MMAN_nl; 1354 print_count(&bln->norm->Bl.count); 1355 outflags |= MMAN_nl; 1356 return 0; 1357 case LIST_hang: 1358 print_width(&bln->norm->Bl, n->child); 1359 TPremain = 0; 1360 outflags |= MMAN_nl; 1361 return 1; 1362 case LIST_tag: 1363 print_width(&bln->norm->Bl, n->child); 1364 putchar('\n'); 1365 outflags &= ~MMAN_spc; 1366 return 1; 1367 default: 1368 return 1; 1369 } 1370 default: 1371 break; 1372 } 1373 return 1; 1374 } 1375 1376 /* 1377 * This function is called after closing out an indented block. 1378 * If we are inside an enclosing list, restore its indentation. 1379 */ 1380 static void 1381 mid_it(void) 1382 { 1383 char buf[24]; 1384 1385 /* Nothing to do outside a list. */ 1386 if (0 == Bl_stack_len || 0 == Bl_stack[Bl_stack_len - 1]) 1387 return; 1388 1389 /* The indentation has already been set up. */ 1390 if (Bl_stack_post[Bl_stack_len - 1]) 1391 return; 1392 1393 /* Restore the indentation of the enclosing list. */ 1394 print_line(".RS", MMAN_Bk_susp); 1395 (void)snprintf(buf, sizeof(buf), "%dn", 1396 Bl_stack[Bl_stack_len - 1]); 1397 print_word(buf); 1398 1399 /* Remeber to close out this .RS block later. */ 1400 Bl_stack_post[Bl_stack_len - 1] = 1; 1401 } 1402 1403 static void 1404 post_it(DECL_ARGS) 1405 { 1406 const struct roff_node *bln; 1407 1408 bln = n->parent->parent; 1409 1410 switch (n->type) { 1411 case ROFFT_HEAD: 1412 switch (bln->norm->Bl.type) { 1413 case LIST_diag: 1414 outflags &= ~MMAN_spc; 1415 print_word("\\ "); 1416 break; 1417 case LIST_ohang: 1418 outflags |= MMAN_br; 1419 break; 1420 default: 1421 break; 1422 } 1423 break; 1424 case ROFFT_BODY: 1425 switch (bln->norm->Bl.type) { 1426 case LIST_bullet: 1427 case LIST_dash: 1428 case LIST_hyphen: 1429 case LIST_enum: 1430 case LIST_hang: 1431 case LIST_tag: 1432 assert(Bl_stack_len); 1433 Bl_stack[--Bl_stack_len] = 0; 1434 1435 /* 1436 * Our indentation had to be restored 1437 * after a child display or child list. 1438 * Close out that indentation block now. 1439 */ 1440 if (Bl_stack_post[Bl_stack_len]) { 1441 print_line(".RE", MMAN_nl); 1442 Bl_stack_post[Bl_stack_len] = 0; 1443 } 1444 break; 1445 case LIST_column: 1446 if (NULL != n->next) { 1447 putchar('\t'); 1448 outflags &= ~MMAN_spc; 1449 } 1450 break; 1451 default: 1452 break; 1453 } 1454 break; 1455 default: 1456 break; 1457 } 1458 } 1459 1460 static void 1461 post_lb(DECL_ARGS) 1462 { 1463 1464 if (SEC_LIBRARY == n->sec) 1465 outflags |= MMAN_br; 1466 } 1467 1468 static int 1469 pre_lk(DECL_ARGS) 1470 { 1471 const struct roff_node *link, *descr; 1472 1473 if (NULL == (link = n->child)) 1474 return 0; 1475 1476 if (NULL != (descr = link->next)) { 1477 font_push('I'); 1478 while (NULL != descr) { 1479 print_word(descr->string); 1480 descr = descr->next; 1481 } 1482 print_word(":"); 1483 font_pop(); 1484 } 1485 1486 font_push('B'); 1487 print_word(link->string); 1488 font_pop(); 1489 return 0; 1490 } 1491 1492 static int 1493 pre_ll(DECL_ARGS) 1494 { 1495 1496 print_line(".ll", 0); 1497 return 1; 1498 } 1499 1500 static int 1501 pre_li(DECL_ARGS) 1502 { 1503 1504 font_push('R'); 1505 return 1; 1506 } 1507 1508 static int 1509 pre_nm(DECL_ARGS) 1510 { 1511 char *name; 1512 1513 if (n->type == ROFFT_BLOCK) { 1514 outflags |= MMAN_Bk; 1515 pre_syn(n); 1516 } 1517 if (n->type != ROFFT_ELEM && n->type != ROFFT_HEAD) 1518 return 1; 1519 name = n->child ? n->child->string : meta->name; 1520 if (NULL == name) 1521 return 0; 1522 if (n->type == ROFFT_HEAD) { 1523 if (NULL == n->parent->prev) 1524 outflags |= MMAN_sp; 1525 print_block(".HP", 0); 1526 printf(" %zun", strlen(name) + 1); 1527 outflags |= MMAN_nl; 1528 } 1529 font_push('B'); 1530 if (NULL == n->child) 1531 print_word(meta->name); 1532 return 1; 1533 } 1534 1535 static void 1536 post_nm(DECL_ARGS) 1537 { 1538 1539 switch (n->type) { 1540 case ROFFT_BLOCK: 1541 outflags &= ~MMAN_Bk; 1542 break; 1543 case ROFFT_HEAD: 1544 case ROFFT_ELEM: 1545 if (n->child != NULL || meta->name != NULL) 1546 font_pop(); 1547 break; 1548 default: 1549 break; 1550 } 1551 } 1552 1553 static int 1554 pre_no(DECL_ARGS) 1555 { 1556 1557 outflags |= MMAN_spc_force; 1558 return 1; 1559 } 1560 1561 static int 1562 pre_ns(DECL_ARGS) 1563 { 1564 1565 outflags &= ~MMAN_spc; 1566 return 0; 1567 } 1568 1569 static void 1570 post_pf(DECL_ARGS) 1571 { 1572 1573 if ( ! (n->next == NULL || n->next->flags & NODE_LINE)) 1574 outflags &= ~MMAN_spc; 1575 } 1576 1577 static int 1578 pre_pp(DECL_ARGS) 1579 { 1580 1581 if (MDOC_It != n->parent->tok) 1582 outflags |= MMAN_PP; 1583 outflags |= MMAN_sp | MMAN_nl; 1584 outflags &= ~MMAN_br; 1585 return 0; 1586 } 1587 1588 static int 1589 pre_rs(DECL_ARGS) 1590 { 1591 1592 if (SEC_SEE_ALSO == n->sec) { 1593 outflags |= MMAN_PP | MMAN_sp | MMAN_nl; 1594 outflags &= ~MMAN_br; 1595 } 1596 return 1; 1597 } 1598 1599 static int 1600 pre_skip(DECL_ARGS) 1601 { 1602 1603 return 0; 1604 } 1605 1606 static int 1607 pre_sm(DECL_ARGS) 1608 { 1609 1610 if (NULL == n->child) 1611 outflags ^= MMAN_Sm; 1612 else if (0 == strcmp("on", n->child->string)) 1613 outflags |= MMAN_Sm; 1614 else 1615 outflags &= ~MMAN_Sm; 1616 1617 if (MMAN_Sm & outflags) 1618 outflags |= MMAN_spc; 1619 1620 return 0; 1621 } 1622 1623 static int 1624 pre_sp(DECL_ARGS) 1625 { 1626 1627 if (MMAN_PP & outflags) { 1628 outflags &= ~MMAN_PP; 1629 print_line(".PP", 0); 1630 } else 1631 print_line(".sp", 0); 1632 return 1; 1633 } 1634 1635 static void 1636 post_sp(DECL_ARGS) 1637 { 1638 1639 outflags |= MMAN_nl; 1640 } 1641 1642 static int 1643 pre_sy(DECL_ARGS) 1644 { 1645 1646 font_push('B'); 1647 return 1; 1648 } 1649 1650 static int 1651 pre_vt(DECL_ARGS) 1652 { 1653 1654 if (NODE_SYNPRETTY & n->flags) { 1655 switch (n->type) { 1656 case ROFFT_BLOCK: 1657 pre_syn(n); 1658 return 1; 1659 case ROFFT_BODY: 1660 break; 1661 default: 1662 return 0; 1663 } 1664 } 1665 font_push('I'); 1666 return 1; 1667 } 1668 1669 static void 1670 post_vt(DECL_ARGS) 1671 { 1672 1673 if (n->flags & NODE_SYNPRETTY && n->type != ROFFT_BODY) 1674 return; 1675 font_pop(); 1676 } 1677 1678 static int 1679 pre_xr(DECL_ARGS) 1680 { 1681 1682 n = n->child; 1683 if (NULL == n) 1684 return 0; 1685 print_node(meta, n); 1686 n = n->next; 1687 if (NULL == n) 1688 return 0; 1689 outflags &= ~MMAN_spc; 1690 print_word("("); 1691 print_node(meta, n); 1692 print_word(")"); 1693 return 0; 1694 } 1695