1 /* $OpenBSD: mdoc_man.c,v 1.94 2016/01/08 17:48:04 schwarze Exp $ */ 2 /* 3 * Copyright (c) 2011-2016 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_bx(DECL_ARGS); 81 static int pre_dl(DECL_ARGS); 82 static int pre_en(DECL_ARGS); 83 static int pre_enc(DECL_ARGS); 84 static int pre_em(DECL_ARGS); 85 static int pre_skip(DECL_ARGS); 86 static int pre_eo(DECL_ARGS); 87 static int pre_ex(DECL_ARGS); 88 static int pre_fa(DECL_ARGS); 89 static int pre_fd(DECL_ARGS); 90 static int pre_fl(DECL_ARGS); 91 static int pre_fn(DECL_ARGS); 92 static int pre_fo(DECL_ARGS); 93 static int pre_ft(DECL_ARGS); 94 static int pre_in(DECL_ARGS); 95 static int pre_it(DECL_ARGS); 96 static int pre_lk(DECL_ARGS); 97 static int pre_li(DECL_ARGS); 98 static int pre_ll(DECL_ARGS); 99 static int pre_nm(DECL_ARGS); 100 static int pre_no(DECL_ARGS); 101 static int pre_ns(DECL_ARGS); 102 static int pre_pp(DECL_ARGS); 103 static int pre_rs(DECL_ARGS); 104 static int pre_rv(DECL_ARGS); 105 static int pre_sm(DECL_ARGS); 106 static int pre_sp(DECL_ARGS); 107 static int pre_sect(DECL_ARGS); 108 static int pre_sy(DECL_ARGS); 109 static void pre_syn(const struct roff_node *); 110 static int pre_vt(DECL_ARGS); 111 static int pre_ux(DECL_ARGS); 112 static int pre_xr(DECL_ARGS); 113 static void print_word(const char *); 114 static void print_line(const char *, int); 115 static void print_block(const char *, int); 116 static void print_offs(const char *, int); 117 static void print_width(const struct mdoc_bl *, 118 const struct roff_node *); 119 static void print_count(int *); 120 static void print_node(DECL_ARGS); 121 122 static const struct manact manacts[MDOC_MAX + 1] = { 123 { NULL, pre_ap, NULL, NULL, NULL }, /* Ap */ 124 { NULL, NULL, NULL, NULL, NULL }, /* Dd */ 125 { NULL, NULL, NULL, NULL, NULL }, /* Dt */ 126 { NULL, NULL, NULL, NULL, NULL }, /* Os */ 127 { NULL, pre_sect, post_sect, ".SH", NULL }, /* Sh */ 128 { NULL, pre_sect, post_sect, ".SS", NULL }, /* Ss */ 129 { NULL, pre_pp, NULL, NULL, NULL }, /* Pp */ 130 { cond_body, pre_dl, post_dl, NULL, NULL }, /* D1 */ 131 { cond_body, pre_dl, post_dl, NULL, NULL }, /* Dl */ 132 { cond_body, pre_bd, post_bd, NULL, NULL }, /* Bd */ 133 { NULL, NULL, NULL, NULL, NULL }, /* Ed */ 134 { cond_body, pre_bl, post_bl, NULL, NULL }, /* Bl */ 135 { NULL, NULL, NULL, NULL, NULL }, /* El */ 136 { NULL, pre_it, post_it, NULL, NULL }, /* It */ 137 { NULL, pre_em, post_font, NULL, NULL }, /* Ad */ 138 { NULL, pre_an, NULL, NULL, NULL }, /* An */ 139 { NULL, pre_em, post_font, NULL, NULL }, /* Ar */ 140 { NULL, pre_sy, post_font, NULL, NULL }, /* Cd */ 141 { NULL, pre_sy, post_font, NULL, NULL }, /* Cm */ 142 { NULL, pre_li, post_font, NULL, NULL }, /* Dv */ 143 { NULL, pre_li, post_font, NULL, NULL }, /* Er */ 144 { NULL, pre_li, post_font, NULL, NULL }, /* Ev */ 145 { NULL, pre_ex, NULL, NULL, NULL }, /* Ex */ 146 { NULL, pre_fa, post_fa, NULL, NULL }, /* Fa */ 147 { NULL, pre_fd, post_fd, NULL, NULL }, /* Fd */ 148 { NULL, pre_fl, post_fl, NULL, NULL }, /* Fl */ 149 { NULL, pre_fn, post_fn, NULL, NULL }, /* Fn */ 150 { NULL, pre_ft, post_font, NULL, NULL }, /* Ft */ 151 { NULL, pre_sy, post_font, NULL, NULL }, /* Ic */ 152 { NULL, pre_in, post_in, NULL, NULL }, /* In */ 153 { NULL, pre_li, post_font, NULL, NULL }, /* Li */ 154 { cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */ 155 { NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */ 156 { cond_body, pre_enc, post_enc, "[", "]" }, /* Op */ 157 { NULL, pre_ft, post_font, NULL, NULL }, /* Ot */ 158 { NULL, pre_em, post_font, NULL, NULL }, /* Pa */ 159 { NULL, pre_rv, NULL, NULL, NULL }, /* Rv */ 160 { NULL, NULL, NULL, NULL, NULL }, /* St */ 161 { NULL, pre_em, post_font, NULL, NULL }, /* Va */ 162 { NULL, pre_vt, post_vt, NULL, NULL }, /* Vt */ 163 { NULL, pre_xr, NULL, NULL, NULL }, /* Xr */ 164 { NULL, NULL, post_percent, NULL, NULL }, /* %A */ 165 { NULL, pre_em, post_percent, NULL, NULL }, /* %B */ 166 { NULL, NULL, post_percent, NULL, NULL }, /* %D */ 167 { NULL, pre_em, post_percent, NULL, NULL }, /* %I */ 168 { NULL, pre_em, post_percent, NULL, NULL }, /* %J */ 169 { NULL, NULL, post_percent, NULL, NULL }, /* %N */ 170 { NULL, NULL, post_percent, NULL, NULL }, /* %O */ 171 { NULL, NULL, post_percent, NULL, NULL }, /* %P */ 172 { NULL, NULL, post_percent, NULL, NULL }, /* %R */ 173 { NULL, pre__t, post__t, NULL, NULL }, /* %T */ 174 { NULL, NULL, post_percent, NULL, NULL }, /* %V */ 175 { NULL, NULL, NULL, NULL, NULL }, /* Ac */ 176 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Ao */ 177 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Aq */ 178 { NULL, NULL, NULL, NULL, NULL }, /* At */ 179 { NULL, NULL, NULL, NULL, NULL }, /* Bc */ 180 { NULL, pre_bf, post_bf, NULL, NULL }, /* Bf */ 181 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bo */ 182 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bq */ 183 { NULL, pre_ux, NULL, "BSD/OS", NULL }, /* Bsx */ 184 { NULL, pre_bx, NULL, NULL, NULL }, /* Bx */ 185 { NULL, pre_skip, NULL, NULL, NULL }, /* Db */ 186 { NULL, NULL, NULL, NULL, NULL }, /* Dc */ 187 { cond_body, pre_enc, post_enc, "\\(Lq", "\\(Rq" }, /* Do */ 188 { cond_body, pre_enc, post_enc, "\\(Lq", "\\(Rq" }, /* Dq */ 189 { NULL, NULL, NULL, NULL, NULL }, /* Ec */ 190 { NULL, NULL, NULL, NULL, NULL }, /* Ef */ 191 { NULL, pre_em, post_font, NULL, NULL }, /* Em */ 192 { cond_body, pre_eo, post_eo, NULL, NULL }, /* Eo */ 193 { NULL, pre_ux, NULL, "FreeBSD", NULL }, /* Fx */ 194 { NULL, pre_sy, post_font, NULL, NULL }, /* Ms */ 195 { NULL, pre_no, NULL, NULL, NULL }, /* No */ 196 { NULL, pre_ns, NULL, NULL, NULL }, /* Ns */ 197 { NULL, pre_ux, NULL, "NetBSD", NULL }, /* Nx */ 198 { NULL, pre_ux, NULL, "OpenBSD", NULL }, /* Ox */ 199 { NULL, NULL, NULL, NULL, NULL }, /* Pc */ 200 { NULL, NULL, post_pf, NULL, NULL }, /* Pf */ 201 { cond_body, pre_enc, post_enc, "(", ")" }, /* Po */ 202 { cond_body, pre_enc, post_enc, "(", ")" }, /* Pq */ 203 { NULL, NULL, NULL, NULL, NULL }, /* Qc */ 204 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Ql */ 205 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qo */ 206 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qq */ 207 { NULL, NULL, NULL, NULL, NULL }, /* Re */ 208 { cond_body, pre_rs, NULL, NULL, NULL }, /* Rs */ 209 { NULL, NULL, NULL, NULL, NULL }, /* Sc */ 210 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* So */ 211 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Sq */ 212 { NULL, pre_sm, NULL, NULL, NULL }, /* Sm */ 213 { NULL, pre_em, post_font, NULL, NULL }, /* Sx */ 214 { NULL, pre_sy, post_font, NULL, NULL }, /* Sy */ 215 { NULL, pre_li, post_font, NULL, NULL }, /* Tn */ 216 { NULL, pre_ux, NULL, "UNIX", NULL }, /* Ux */ 217 { NULL, NULL, NULL, NULL, NULL }, /* Xc */ 218 { NULL, NULL, NULL, NULL, NULL }, /* Xo */ 219 { NULL, pre_fo, post_fo, NULL, NULL }, /* Fo */ 220 { NULL, NULL, NULL, NULL, NULL }, /* Fc */ 221 { cond_body, pre_enc, post_enc, "[", "]" }, /* Oo */ 222 { NULL, NULL, NULL, NULL, NULL }, /* Oc */ 223 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bk */ 224 { NULL, NULL, NULL, NULL, NULL }, /* Ek */ 225 { NULL, pre_ux, NULL, "is currently in beta test.", NULL }, /* Bt */ 226 { NULL, NULL, NULL, NULL, NULL }, /* Hf */ 227 { NULL, pre_em, post_font, NULL, NULL }, /* Fr */ 228 { NULL, pre_ux, NULL, "currently under development.", NULL }, /* Ud */ 229 { NULL, NULL, post_lb, NULL, NULL }, /* Lb */ 230 { NULL, pre_pp, NULL, NULL, NULL }, /* Lp */ 231 { NULL, pre_lk, NULL, NULL, NULL }, /* Lk */ 232 { NULL, pre_em, post_font, NULL, NULL }, /* Mt */ 233 { cond_body, pre_enc, post_enc, "{", "}" }, /* Brq */ 234 { cond_body, pre_enc, post_enc, "{", "}" }, /* Bro */ 235 { NULL, NULL, NULL, NULL, NULL }, /* Brc */ 236 { NULL, NULL, post_percent, NULL, NULL }, /* %C */ 237 { NULL, pre_skip, NULL, NULL, NULL }, /* Es */ 238 { cond_body, pre_en, post_en, NULL, NULL }, /* En */ 239 { NULL, pre_ux, NULL, "DragonFly", NULL }, /* Dx */ 240 { NULL, NULL, post_percent, NULL, NULL }, /* %Q */ 241 { NULL, pre_br, NULL, NULL, NULL }, /* br */ 242 { NULL, pre_sp, post_sp, NULL, NULL }, /* sp */ 243 { NULL, NULL, post_percent, NULL, NULL }, /* %U */ 244 { NULL, NULL, NULL, NULL, NULL }, /* Ta */ 245 { NULL, pre_ll, post_sp, NULL, NULL }, /* ll */ 246 { NULL, NULL, NULL, NULL, NULL }, /* ROOT */ 247 }; 248 249 static int outflags; 250 #define MMAN_spc (1 << 0) /* blank character before next word */ 251 #define MMAN_spc_force (1 << 1) /* even before trailing punctuation */ 252 #define MMAN_nl (1 << 2) /* break man(7) code line */ 253 #define MMAN_br (1 << 3) /* break output line */ 254 #define MMAN_sp (1 << 4) /* insert a blank output line */ 255 #define MMAN_PP (1 << 5) /* reset indentation etc. */ 256 #define MMAN_Sm (1 << 6) /* horizontal spacing mode */ 257 #define MMAN_Bk (1 << 7) /* word keep mode */ 258 #define MMAN_Bk_susp (1 << 8) /* suspend this (after a macro) */ 259 #define MMAN_An_split (1 << 9) /* author mode is "split" */ 260 #define MMAN_An_nosplit (1 << 10) /* author mode is "nosplit" */ 261 #define MMAN_PD (1 << 11) /* inter-paragraph spacing disabled */ 262 #define MMAN_nbrword (1 << 12) /* do not break the next word */ 263 264 #define BL_STACK_MAX 32 265 266 static int Bl_stack[BL_STACK_MAX]; /* offsets [chars] */ 267 static int Bl_stack_post[BL_STACK_MAX]; /* add final .RE */ 268 static int Bl_stack_len; /* number of nested Bl blocks */ 269 static int TPremain; /* characters before tag is full */ 270 271 static struct { 272 char *head; 273 char *tail; 274 size_t size; 275 } fontqueue; 276 277 278 static void 279 font_push(char newfont) 280 { 281 282 if (fontqueue.head + fontqueue.size <= ++fontqueue.tail) { 283 fontqueue.size += 8; 284 fontqueue.head = mandoc_realloc(fontqueue.head, 285 fontqueue.size); 286 } 287 *fontqueue.tail = newfont; 288 print_word(""); 289 printf("\\f"); 290 putchar(newfont); 291 outflags &= ~MMAN_spc; 292 } 293 294 static void 295 font_pop(void) 296 { 297 298 if (fontqueue.tail > fontqueue.head) 299 fontqueue.tail--; 300 outflags &= ~MMAN_spc; 301 print_word(""); 302 printf("\\f"); 303 putchar(*fontqueue.tail); 304 } 305 306 static void 307 print_word(const char *s) 308 { 309 310 if ((MMAN_PP | MMAN_sp | MMAN_br | MMAN_nl) & outflags) { 311 /* 312 * If we need a newline, print it now and start afresh. 313 */ 314 if (MMAN_PP & outflags) { 315 if (MMAN_sp & outflags) { 316 if (MMAN_PD & outflags) { 317 printf("\n.PD"); 318 outflags &= ~MMAN_PD; 319 } 320 } else if ( ! (MMAN_PD & outflags)) { 321 printf("\n.PD 0"); 322 outflags |= MMAN_PD; 323 } 324 printf("\n.PP\n"); 325 } else if (MMAN_sp & outflags) 326 printf("\n.sp\n"); 327 else if (MMAN_br & outflags) 328 printf("\n.br\n"); 329 else if (MMAN_nl & outflags) 330 putchar('\n'); 331 outflags &= ~(MMAN_PP|MMAN_sp|MMAN_br|MMAN_nl|MMAN_spc); 332 if (1 == TPremain) 333 printf(".br\n"); 334 TPremain = 0; 335 } else if (MMAN_spc & outflags) { 336 /* 337 * If we need a space, only print it if 338 * (1) it is forced by `No' or 339 * (2) what follows is not terminating punctuation or 340 * (3) what follows is longer than one character. 341 */ 342 if (MMAN_spc_force & outflags || '\0' == s[0] || 343 NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1]) { 344 if (MMAN_Bk & outflags && 345 ! (MMAN_Bk_susp & outflags)) 346 putchar('\\'); 347 putchar(' '); 348 if (TPremain) 349 TPremain--; 350 } 351 } 352 353 /* 354 * Reassign needing space if we're not following opening 355 * punctuation. 356 */ 357 if (MMAN_Sm & outflags && ('\0' == s[0] || 358 (('(' != s[0] && '[' != s[0]) || '\0' != s[1]))) 359 outflags |= MMAN_spc; 360 else 361 outflags &= ~MMAN_spc; 362 outflags &= ~(MMAN_spc_force | MMAN_Bk_susp); 363 364 for ( ; *s; s++) { 365 switch (*s) { 366 case ASCII_NBRSP: 367 printf("\\ "); 368 break; 369 case ASCII_HYPH: 370 putchar('-'); 371 break; 372 case ASCII_BREAK: 373 printf("\\:"); 374 break; 375 case ' ': 376 if (MMAN_nbrword & outflags) { 377 printf("\\ "); 378 break; 379 } 380 /* FALLTHROUGH */ 381 default: 382 putchar((unsigned char)*s); 383 break; 384 } 385 if (TPremain) 386 TPremain--; 387 } 388 outflags &= ~MMAN_nbrword; 389 } 390 391 static void 392 print_line(const char *s, int newflags) 393 { 394 395 outflags &= ~MMAN_br; 396 outflags |= MMAN_nl; 397 print_word(s); 398 outflags |= newflags; 399 } 400 401 static void 402 print_block(const char *s, int newflags) 403 { 404 405 outflags &= ~MMAN_PP; 406 if (MMAN_sp & outflags) { 407 outflags &= ~(MMAN_sp | MMAN_br); 408 if (MMAN_PD & outflags) { 409 print_line(".PD", 0); 410 outflags &= ~MMAN_PD; 411 } 412 } else if (! (MMAN_PD & outflags)) 413 print_line(".PD 0", MMAN_PD); 414 outflags |= MMAN_nl; 415 print_word(s); 416 outflags |= MMAN_Bk_susp | newflags; 417 } 418 419 static void 420 print_offs(const char *v, int keywords) 421 { 422 char buf[24]; 423 struct roffsu su; 424 int sz; 425 426 print_line(".RS", MMAN_Bk_susp); 427 428 /* Convert v into a number (of characters). */ 429 if (NULL == v || '\0' == *v || (keywords && !strcmp(v, "left"))) 430 sz = 0; 431 else if (keywords && !strcmp(v, "indent")) 432 sz = 6; 433 else if (keywords && !strcmp(v, "indent-two")) 434 sz = 12; 435 else if (a2roffsu(v, &su, SCALE_EN) > 1) { 436 if (SCALE_EN == su.unit) 437 sz = su.scale; 438 else { 439 /* 440 * XXX 441 * If we are inside an enclosing list, 442 * there is no easy way to add the two 443 * indentations because they are provided 444 * in terms of different units. 445 */ 446 print_word(v); 447 outflags |= MMAN_nl; 448 return; 449 } 450 } else 451 sz = strlen(v); 452 453 /* 454 * We are inside an enclosing list. 455 * Add the two indentations. 456 */ 457 if (Bl_stack_len) 458 sz += Bl_stack[Bl_stack_len - 1]; 459 460 (void)snprintf(buf, sizeof(buf), "%dn", sz); 461 print_word(buf); 462 outflags |= MMAN_nl; 463 } 464 465 /* 466 * Set up the indentation for a list item; used from pre_it(). 467 */ 468 static void 469 print_width(const struct mdoc_bl *bl, const struct roff_node *child) 470 { 471 char buf[24]; 472 struct roffsu su; 473 int numeric, remain, sz, chsz; 474 475 numeric = 1; 476 remain = 0; 477 478 /* Convert the width into a number (of characters). */ 479 if (bl->width == NULL) 480 sz = (bl->type == LIST_hang) ? 6 : 0; 481 else if (a2roffsu(bl->width, &su, SCALE_MAX) > 1) { 482 if (SCALE_EN == su.unit) 483 sz = su.scale; 484 else { 485 sz = 0; 486 numeric = 0; 487 } 488 } else 489 sz = strlen(bl->width); 490 491 /* XXX Rough estimation, might have multiple parts. */ 492 if (bl->type == LIST_enum) 493 chsz = (bl->count > 8) + 1; 494 else if (child != NULL && child->type == ROFFT_TEXT) 495 chsz = strlen(child->string); 496 else 497 chsz = 0; 498 499 /* Maybe we are inside an enclosing list? */ 500 mid_it(); 501 502 /* 503 * Save our own indentation, 504 * such that child lists can use it. 505 */ 506 Bl_stack[Bl_stack_len++] = sz + 2; 507 508 /* Set up the current list. */ 509 if (chsz > sz && bl->type != LIST_tag) 510 print_block(".HP", 0); 511 else { 512 print_block(".TP", 0); 513 remain = sz + 2; 514 } 515 if (numeric) { 516 (void)snprintf(buf, sizeof(buf), "%dn", sz + 2); 517 print_word(buf); 518 } else 519 print_word(bl->width); 520 TPremain = remain; 521 } 522 523 static void 524 print_count(int *count) 525 { 526 char buf[24]; 527 528 (void)snprintf(buf, sizeof(buf), "%d.\\&", ++*count); 529 print_word(buf); 530 } 531 532 void 533 man_man(void *arg, const struct roff_man *man) 534 { 535 536 /* 537 * Dump the keep buffer. 538 * We're guaranteed by now that this exists (is non-NULL). 539 * Flush stdout afterward, just in case. 540 */ 541 fputs(mparse_getkeep(man_mparse(man)), stdout); 542 fflush(stdout); 543 } 544 545 void 546 man_mdoc(void *arg, const struct roff_man *mdoc) 547 { 548 struct roff_node *n; 549 550 printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"\n", 551 mdoc->meta.title, 552 (mdoc->meta.msec == NULL ? "" : mdoc->meta.msec), 553 mdoc->meta.date, mdoc->meta.os, mdoc->meta.vol); 554 555 /* Disable hyphenation and if nroff, disable justification. */ 556 printf(".nh\n.if n .ad l"); 557 558 outflags = MMAN_nl | MMAN_Sm; 559 if (0 == fontqueue.size) { 560 fontqueue.size = 8; 561 fontqueue.head = fontqueue.tail = mandoc_malloc(8); 562 *fontqueue.tail = 'R'; 563 } 564 for (n = mdoc->first->child; n != NULL; n = n->next) 565 print_node(&mdoc->meta, n); 566 putchar('\n'); 567 } 568 569 static void 570 print_node(DECL_ARGS) 571 { 572 const struct manact *act; 573 struct roff_node *sub; 574 int cond, do_sub; 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 && MDOC_LINE & n->flags) 581 outflags |= MMAN_nl; 582 583 act = NULL; 584 cond = 0; 585 do_sub = 1; 586 n->flags &= ~MDOC_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 (outflags & MMAN_Sm && ! (n->flags & MDOC_DELIMC)) 600 outflags |= MMAN_spc_force; 601 print_word(n->string); 602 if (outflags & MMAN_Sm && ! (n->flags & MDOC_DELIMO)) 603 outflags |= MMAN_spc; 604 } else { 605 /* 606 * Conditionally run the pre-node action handler for a 607 * node. 608 */ 609 act = manacts + n->tok; 610 cond = act->cond == NULL || (*act->cond)(meta, n); 611 if (cond && act->pre != NULL && 612 (n->end == ENDBODY_NOT || n->child != NULL)) 613 do_sub = (*act->pre)(meta, n); 614 } 615 616 /* 617 * Conditionally run all child nodes. 618 * Note that this iterates over children instead of using 619 * recursion. This prevents unnecessary depth in the stack. 620 */ 621 if (do_sub) 622 for (sub = n->child; sub; sub = sub->next) 623 print_node(meta, sub); 624 625 /* 626 * Lastly, conditionally run the post-node handler. 627 */ 628 if (MDOC_ENDED & n->flags) 629 return; 630 631 if (cond && act->post) 632 (*act->post)(meta, n); 633 634 if (ENDBODY_NOT != n->end) 635 n->body->flags |= MDOC_ENDED; 636 637 if (ENDBODY_NOSPACE == n->end) 638 outflags &= ~(MMAN_spc | MMAN_nl); 639 } 640 641 static int 642 cond_head(DECL_ARGS) 643 { 644 645 return n->type == ROFFT_HEAD; 646 } 647 648 static int 649 cond_body(DECL_ARGS) 650 { 651 652 return n->type == ROFFT_BODY; 653 } 654 655 static int 656 pre_enc(DECL_ARGS) 657 { 658 const char *prefix; 659 660 prefix = manacts[n->tok].prefix; 661 if (NULL == prefix) 662 return 1; 663 print_word(prefix); 664 outflags &= ~MMAN_spc; 665 return 1; 666 } 667 668 static void 669 post_enc(DECL_ARGS) 670 { 671 const char *suffix; 672 673 suffix = manacts[n->tok].suffix; 674 if (NULL == suffix) 675 return; 676 outflags &= ~(MMAN_spc | MMAN_nl); 677 print_word(suffix); 678 } 679 680 static int 681 pre_ex(DECL_ARGS) 682 { 683 struct roff_node *nch; 684 685 outflags |= MMAN_br | MMAN_nl; 686 687 print_word("The"); 688 689 for (nch = n->child; nch != NULL; nch = nch->next) { 690 font_push('B'); 691 print_word(nch->string); 692 font_pop(); 693 694 if (nch->next == NULL) 695 continue; 696 697 if (nch->prev != NULL || nch->next->next != NULL) { 698 outflags &= ~MMAN_spc; 699 print_word(","); 700 } 701 if (nch->next->next == NULL) 702 print_word("and"); 703 } 704 705 if (n->child != NULL && n->child->next != NULL) 706 print_word("utilities exit\\~0"); 707 else 708 print_word("utility exits\\~0"); 709 710 print_word("on success, and\\~>0 if an error occurs."); 711 outflags |= MMAN_nl; 712 return 0; 713 } 714 715 static void 716 post_font(DECL_ARGS) 717 { 718 719 font_pop(); 720 } 721 722 static void 723 post_percent(DECL_ARGS) 724 { 725 726 if (pre_em == manacts[n->tok].pre) 727 font_pop(); 728 if (n->next) { 729 print_word(","); 730 if (n->prev && n->prev->tok == n->tok && 731 n->next->tok == n->tok) 732 print_word("and"); 733 } else { 734 print_word("."); 735 outflags |= MMAN_nl; 736 } 737 } 738 739 static int 740 pre__t(DECL_ARGS) 741 { 742 743 if (n->parent && MDOC_Rs == n->parent->tok && 744 n->parent->norm->Rs.quote_T) { 745 print_word(""); 746 putchar('\"'); 747 outflags &= ~MMAN_spc; 748 } else 749 font_push('I'); 750 return 1; 751 } 752 753 static void 754 post__t(DECL_ARGS) 755 { 756 757 if (n->parent && MDOC_Rs == n->parent->tok && 758 n->parent->norm->Rs.quote_T) { 759 outflags &= ~MMAN_spc; 760 print_word(""); 761 putchar('\"'); 762 } else 763 font_pop(); 764 post_percent(meta, n); 765 } 766 767 /* 768 * Print before a section header. 769 */ 770 static int 771 pre_sect(DECL_ARGS) 772 { 773 774 if (n->type == ROFFT_HEAD) { 775 outflags |= MMAN_sp; 776 print_block(manacts[n->tok].prefix, 0); 777 print_word(""); 778 putchar('\"'); 779 outflags &= ~MMAN_spc; 780 } 781 return 1; 782 } 783 784 /* 785 * Print subsequent a section header. 786 */ 787 static void 788 post_sect(DECL_ARGS) 789 { 790 791 if (n->type != ROFFT_HEAD) 792 return; 793 outflags &= ~MMAN_spc; 794 print_word(""); 795 putchar('\"'); 796 outflags |= MMAN_nl; 797 if (MDOC_Sh == n->tok && SEC_AUTHORS == n->sec) 798 outflags &= ~(MMAN_An_split | MMAN_An_nosplit); 799 } 800 801 /* See mdoc_term.c, synopsis_pre() for comments. */ 802 static void 803 pre_syn(const struct roff_node *n) 804 { 805 806 if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags)) 807 return; 808 809 if (n->prev->tok == n->tok && 810 MDOC_Ft != n->tok && 811 MDOC_Fo != n->tok && 812 MDOC_Fn != n->tok) { 813 outflags |= MMAN_br; 814 return; 815 } 816 817 switch (n->prev->tok) { 818 case MDOC_Fd: 819 case MDOC_Fn: 820 case MDOC_Fo: 821 case MDOC_In: 822 case MDOC_Vt: 823 outflags |= MMAN_sp; 824 break; 825 case MDOC_Ft: 826 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) { 827 outflags |= MMAN_sp; 828 break; 829 } 830 /* FALLTHROUGH */ 831 default: 832 outflags |= MMAN_br; 833 break; 834 } 835 } 836 837 static int 838 pre_an(DECL_ARGS) 839 { 840 841 switch (n->norm->An.auth) { 842 case AUTH_split: 843 outflags &= ~MMAN_An_nosplit; 844 outflags |= MMAN_An_split; 845 return 0; 846 case AUTH_nosplit: 847 outflags &= ~MMAN_An_split; 848 outflags |= MMAN_An_nosplit; 849 return 0; 850 default: 851 if (MMAN_An_split & outflags) 852 outflags |= MMAN_br; 853 else if (SEC_AUTHORS == n->sec && 854 ! (MMAN_An_nosplit & outflags)) 855 outflags |= MMAN_An_split; 856 return 1; 857 } 858 } 859 860 static int 861 pre_ap(DECL_ARGS) 862 { 863 864 outflags &= ~MMAN_spc; 865 print_word("'"); 866 outflags &= ~MMAN_spc; 867 return 0; 868 } 869 870 static int 871 pre_aq(DECL_ARGS) 872 { 873 874 print_word(n->child != NULL && n->child->next == NULL && 875 n->child->tok == MDOC_Mt ? "<" : "\\(la"); 876 outflags &= ~MMAN_spc; 877 return 1; 878 } 879 880 static void 881 post_aq(DECL_ARGS) 882 { 883 884 outflags &= ~(MMAN_spc | MMAN_nl); 885 print_word(n->child != NULL && n->child->next == NULL && 886 n->child->tok == MDOC_Mt ? ">" : "\\(ra"); 887 } 888 889 static int 890 pre_bd(DECL_ARGS) 891 { 892 893 outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br); 894 895 if (DISP_unfilled == n->norm->Bd.type || 896 DISP_literal == n->norm->Bd.type) 897 print_line(".nf", 0); 898 if (0 == n->norm->Bd.comp && NULL != n->parent->prev) 899 outflags |= MMAN_sp; 900 print_offs(n->norm->Bd.offs, 1); 901 return 1; 902 } 903 904 static void 905 post_bd(DECL_ARGS) 906 { 907 908 /* Close out this display. */ 909 print_line(".RE", MMAN_nl); 910 if (DISP_unfilled == n->norm->Bd.type || 911 DISP_literal == n->norm->Bd.type) 912 print_line(".fi", MMAN_nl); 913 914 /* Maybe we are inside an enclosing list? */ 915 if (NULL != n->parent->next) 916 mid_it(); 917 } 918 919 static int 920 pre_bf(DECL_ARGS) 921 { 922 923 switch (n->type) { 924 case ROFFT_BLOCK: 925 return 1; 926 case ROFFT_BODY: 927 break; 928 default: 929 return 0; 930 } 931 switch (n->norm->Bf.font) { 932 case FONT_Em: 933 font_push('I'); 934 break; 935 case FONT_Sy: 936 font_push('B'); 937 break; 938 default: 939 font_push('R'); 940 break; 941 } 942 return 1; 943 } 944 945 static void 946 post_bf(DECL_ARGS) 947 { 948 949 if (n->type == ROFFT_BODY) 950 font_pop(); 951 } 952 953 static int 954 pre_bk(DECL_ARGS) 955 { 956 957 switch (n->type) { 958 case ROFFT_BLOCK: 959 return 1; 960 case ROFFT_BODY: 961 outflags |= MMAN_Bk; 962 return 1; 963 default: 964 return 0; 965 } 966 } 967 968 static void 969 post_bk(DECL_ARGS) 970 { 971 972 if (n->type == ROFFT_BODY) 973 outflags &= ~MMAN_Bk; 974 } 975 976 static int 977 pre_bl(DECL_ARGS) 978 { 979 size_t icol; 980 981 /* 982 * print_offs() will increase the -offset to account for 983 * a possible enclosing .It, but any enclosed .It blocks 984 * just nest and do not add up their indentation. 985 */ 986 if (n->norm->Bl.offs) { 987 print_offs(n->norm->Bl.offs, 0); 988 Bl_stack[Bl_stack_len++] = 0; 989 } 990 991 switch (n->norm->Bl.type) { 992 case LIST_enum: 993 n->norm->Bl.count = 0; 994 return 1; 995 case LIST_column: 996 break; 997 default: 998 return 1; 999 } 1000 1001 if (n->child != NULL) { 1002 print_line(".TS", MMAN_nl); 1003 for (icol = 0; icol < n->norm->Bl.ncols; icol++) 1004 print_word("l"); 1005 print_word("."); 1006 } 1007 outflags |= MMAN_nl; 1008 return 1; 1009 } 1010 1011 static void 1012 post_bl(DECL_ARGS) 1013 { 1014 1015 switch (n->norm->Bl.type) { 1016 case LIST_column: 1017 if (n->child != NULL) 1018 print_line(".TE", 0); 1019 break; 1020 case LIST_enum: 1021 n->norm->Bl.count = 0; 1022 break; 1023 default: 1024 break; 1025 } 1026 1027 if (n->norm->Bl.offs) { 1028 print_line(".RE", MMAN_nl); 1029 assert(Bl_stack_len); 1030 Bl_stack_len--; 1031 assert(0 == Bl_stack[Bl_stack_len]); 1032 } else { 1033 outflags |= MMAN_PP | MMAN_nl; 1034 outflags &= ~(MMAN_sp | MMAN_br); 1035 } 1036 1037 /* Maybe we are inside an enclosing list? */ 1038 if (NULL != n->parent->next) 1039 mid_it(); 1040 1041 } 1042 1043 static int 1044 pre_br(DECL_ARGS) 1045 { 1046 1047 outflags |= MMAN_br; 1048 return 0; 1049 } 1050 1051 static int 1052 pre_bx(DECL_ARGS) 1053 { 1054 1055 n = n->child; 1056 if (n) { 1057 print_word(n->string); 1058 outflags &= ~MMAN_spc; 1059 n = n->next; 1060 } 1061 print_word("BSD"); 1062 if (NULL == n) 1063 return 0; 1064 outflags &= ~MMAN_spc; 1065 print_word("-"); 1066 outflags &= ~MMAN_spc; 1067 print_word(n->string); 1068 return 0; 1069 } 1070 1071 static int 1072 pre_dl(DECL_ARGS) 1073 { 1074 1075 print_offs("6n", 0); 1076 return 1; 1077 } 1078 1079 static void 1080 post_dl(DECL_ARGS) 1081 { 1082 1083 print_line(".RE", MMAN_nl); 1084 1085 /* Maybe we are inside an enclosing list? */ 1086 if (NULL != n->parent->next) 1087 mid_it(); 1088 } 1089 1090 static int 1091 pre_em(DECL_ARGS) 1092 { 1093 1094 font_push('I'); 1095 return 1; 1096 } 1097 1098 static int 1099 pre_en(DECL_ARGS) 1100 { 1101 1102 if (NULL == n->norm->Es || 1103 NULL == n->norm->Es->child) 1104 return 1; 1105 1106 print_word(n->norm->Es->child->string); 1107 outflags &= ~MMAN_spc; 1108 return 1; 1109 } 1110 1111 static void 1112 post_en(DECL_ARGS) 1113 { 1114 1115 if (NULL == n->norm->Es || 1116 NULL == n->norm->Es->child || 1117 NULL == n->norm->Es->child->next) 1118 return; 1119 1120 outflags &= ~MMAN_spc; 1121 print_word(n->norm->Es->child->next->string); 1122 return; 1123 } 1124 1125 static int 1126 pre_eo(DECL_ARGS) 1127 { 1128 1129 if (n->end == ENDBODY_NOT && 1130 n->parent->head->child == NULL && 1131 n->child != NULL && 1132 n->child->end != ENDBODY_NOT) 1133 print_word("\\&"); 1134 else if (n->end != ENDBODY_NOT ? n->child != NULL : 1135 n->parent->head->child != NULL && (n->child != NULL || 1136 (n->parent->tail != NULL && n->parent->tail->child != NULL))) 1137 outflags &= ~(MMAN_spc | MMAN_nl); 1138 return 1; 1139 } 1140 1141 static void 1142 post_eo(DECL_ARGS) 1143 { 1144 int body, tail; 1145 1146 if (n->end != ENDBODY_NOT) { 1147 outflags |= MMAN_spc; 1148 return; 1149 } 1150 1151 body = n->child != NULL || n->parent->head->child != NULL; 1152 tail = n->parent->tail != NULL && n->parent->tail->child != NULL; 1153 1154 if (body && tail) 1155 outflags &= ~MMAN_spc; 1156 else if ( ! (body || tail)) 1157 print_word("\\&"); 1158 else if ( ! tail) 1159 outflags |= MMAN_spc; 1160 } 1161 1162 static int 1163 pre_fa(DECL_ARGS) 1164 { 1165 int am_Fa; 1166 1167 am_Fa = MDOC_Fa == n->tok; 1168 1169 if (am_Fa) 1170 n = n->child; 1171 1172 while (NULL != n) { 1173 font_push('I'); 1174 if (am_Fa || MDOC_SYNPRETTY & n->flags) 1175 outflags |= MMAN_nbrword; 1176 print_node(meta, n); 1177 font_pop(); 1178 if (NULL != (n = n->next)) 1179 print_word(","); 1180 } 1181 return 0; 1182 } 1183 1184 static void 1185 post_fa(DECL_ARGS) 1186 { 1187 1188 if (NULL != n->next && MDOC_Fa == n->next->tok) 1189 print_word(","); 1190 } 1191 1192 static int 1193 pre_fd(DECL_ARGS) 1194 { 1195 1196 pre_syn(n); 1197 font_push('B'); 1198 return 1; 1199 } 1200 1201 static void 1202 post_fd(DECL_ARGS) 1203 { 1204 1205 font_pop(); 1206 outflags |= MMAN_br; 1207 } 1208 1209 static int 1210 pre_fl(DECL_ARGS) 1211 { 1212 1213 font_push('B'); 1214 print_word("\\-"); 1215 if (n->child != NULL) 1216 outflags &= ~MMAN_spc; 1217 return 1; 1218 } 1219 1220 static void 1221 post_fl(DECL_ARGS) 1222 { 1223 1224 font_pop(); 1225 if (!(n->child != NULL || 1226 n->next == NULL || 1227 n->next->type == ROFFT_TEXT || 1228 n->next->flags & MDOC_LINE)) 1229 outflags &= ~MMAN_spc; 1230 } 1231 1232 static int 1233 pre_fn(DECL_ARGS) 1234 { 1235 1236 pre_syn(n); 1237 1238 n = n->child; 1239 if (NULL == n) 1240 return 0; 1241 1242 if (MDOC_SYNPRETTY & n->flags) 1243 print_block(".HP 4n", MMAN_nl); 1244 1245 font_push('B'); 1246 print_node(meta, n); 1247 font_pop(); 1248 outflags &= ~MMAN_spc; 1249 print_word("("); 1250 outflags &= ~MMAN_spc; 1251 1252 n = n->next; 1253 if (NULL != n) 1254 pre_fa(meta, n); 1255 return 0; 1256 } 1257 1258 static void 1259 post_fn(DECL_ARGS) 1260 { 1261 1262 print_word(")"); 1263 if (MDOC_SYNPRETTY & n->flags) { 1264 print_word(";"); 1265 outflags |= MMAN_PP; 1266 } 1267 } 1268 1269 static int 1270 pre_fo(DECL_ARGS) 1271 { 1272 1273 switch (n->type) { 1274 case ROFFT_BLOCK: 1275 pre_syn(n); 1276 break; 1277 case ROFFT_HEAD: 1278 if (n->child == NULL) 1279 return 0; 1280 if (MDOC_SYNPRETTY & n->flags) 1281 print_block(".HP 4n", MMAN_nl); 1282 font_push('B'); 1283 break; 1284 case ROFFT_BODY: 1285 outflags &= ~(MMAN_spc | MMAN_nl); 1286 print_word("("); 1287 outflags &= ~MMAN_spc; 1288 break; 1289 default: 1290 break; 1291 } 1292 return 1; 1293 } 1294 1295 static void 1296 post_fo(DECL_ARGS) 1297 { 1298 1299 switch (n->type) { 1300 case ROFFT_HEAD: 1301 if (n->child != NULL) 1302 font_pop(); 1303 break; 1304 case ROFFT_BODY: 1305 post_fn(meta, n); 1306 break; 1307 default: 1308 break; 1309 } 1310 } 1311 1312 static int 1313 pre_ft(DECL_ARGS) 1314 { 1315 1316 pre_syn(n); 1317 font_push('I'); 1318 return 1; 1319 } 1320 1321 static int 1322 pre_in(DECL_ARGS) 1323 { 1324 1325 if (MDOC_SYNPRETTY & n->flags) { 1326 pre_syn(n); 1327 font_push('B'); 1328 print_word("#include <"); 1329 outflags &= ~MMAN_spc; 1330 } else { 1331 print_word("<"); 1332 outflags &= ~MMAN_spc; 1333 font_push('I'); 1334 } 1335 return 1; 1336 } 1337 1338 static void 1339 post_in(DECL_ARGS) 1340 { 1341 1342 if (MDOC_SYNPRETTY & n->flags) { 1343 outflags &= ~MMAN_spc; 1344 print_word(">"); 1345 font_pop(); 1346 outflags |= MMAN_br; 1347 } else { 1348 font_pop(); 1349 outflags &= ~MMAN_spc; 1350 print_word(">"); 1351 } 1352 } 1353 1354 static int 1355 pre_it(DECL_ARGS) 1356 { 1357 const struct roff_node *bln; 1358 1359 switch (n->type) { 1360 case ROFFT_HEAD: 1361 outflags |= MMAN_PP | MMAN_nl; 1362 bln = n->parent->parent; 1363 if (0 == bln->norm->Bl.comp || 1364 (NULL == n->parent->prev && 1365 NULL == bln->parent->prev)) 1366 outflags |= MMAN_sp; 1367 outflags &= ~MMAN_br; 1368 switch (bln->norm->Bl.type) { 1369 case LIST_item: 1370 return 0; 1371 case LIST_inset: 1372 case LIST_diag: 1373 case LIST_ohang: 1374 if (bln->norm->Bl.type == LIST_diag) 1375 print_line(".B \"", 0); 1376 else 1377 print_line(".R \"", 0); 1378 outflags &= ~MMAN_spc; 1379 return 1; 1380 case LIST_bullet: 1381 case LIST_dash: 1382 case LIST_hyphen: 1383 print_width(&bln->norm->Bl, NULL); 1384 TPremain = 0; 1385 outflags |= MMAN_nl; 1386 font_push('B'); 1387 if (LIST_bullet == bln->norm->Bl.type) 1388 print_word("\\(bu"); 1389 else 1390 print_word("-"); 1391 font_pop(); 1392 outflags |= MMAN_nl; 1393 return 0; 1394 case LIST_enum: 1395 print_width(&bln->norm->Bl, NULL); 1396 TPremain = 0; 1397 outflags |= MMAN_nl; 1398 print_count(&bln->norm->Bl.count); 1399 outflags |= MMAN_nl; 1400 return 0; 1401 case LIST_hang: 1402 print_width(&bln->norm->Bl, n->child); 1403 TPremain = 0; 1404 outflags |= MMAN_nl; 1405 return 1; 1406 case LIST_tag: 1407 print_width(&bln->norm->Bl, n->child); 1408 putchar('\n'); 1409 outflags &= ~MMAN_spc; 1410 return 1; 1411 default: 1412 return 1; 1413 } 1414 default: 1415 break; 1416 } 1417 return 1; 1418 } 1419 1420 /* 1421 * This function is called after closing out an indented block. 1422 * If we are inside an enclosing list, restore its indentation. 1423 */ 1424 static void 1425 mid_it(void) 1426 { 1427 char buf[24]; 1428 1429 /* Nothing to do outside a list. */ 1430 if (0 == Bl_stack_len || 0 == Bl_stack[Bl_stack_len - 1]) 1431 return; 1432 1433 /* The indentation has already been set up. */ 1434 if (Bl_stack_post[Bl_stack_len - 1]) 1435 return; 1436 1437 /* Restore the indentation of the enclosing list. */ 1438 print_line(".RS", MMAN_Bk_susp); 1439 (void)snprintf(buf, sizeof(buf), "%dn", 1440 Bl_stack[Bl_stack_len - 1]); 1441 print_word(buf); 1442 1443 /* Remeber to close out this .RS block later. */ 1444 Bl_stack_post[Bl_stack_len - 1] = 1; 1445 } 1446 1447 static void 1448 post_it(DECL_ARGS) 1449 { 1450 const struct roff_node *bln; 1451 1452 bln = n->parent->parent; 1453 1454 switch (n->type) { 1455 case ROFFT_HEAD: 1456 switch (bln->norm->Bl.type) { 1457 case LIST_diag: 1458 outflags &= ~MMAN_spc; 1459 print_word("\\ "); 1460 break; 1461 case LIST_ohang: 1462 outflags |= MMAN_br; 1463 break; 1464 default: 1465 break; 1466 } 1467 break; 1468 case ROFFT_BODY: 1469 switch (bln->norm->Bl.type) { 1470 case LIST_bullet: 1471 case LIST_dash: 1472 case LIST_hyphen: 1473 case LIST_enum: 1474 case LIST_hang: 1475 case LIST_tag: 1476 assert(Bl_stack_len); 1477 Bl_stack[--Bl_stack_len] = 0; 1478 1479 /* 1480 * Our indentation had to be restored 1481 * after a child display or child list. 1482 * Close out that indentation block now. 1483 */ 1484 if (Bl_stack_post[Bl_stack_len]) { 1485 print_line(".RE", MMAN_nl); 1486 Bl_stack_post[Bl_stack_len] = 0; 1487 } 1488 break; 1489 case LIST_column: 1490 if (NULL != n->next) { 1491 putchar('\t'); 1492 outflags &= ~MMAN_spc; 1493 } 1494 break; 1495 default: 1496 break; 1497 } 1498 break; 1499 default: 1500 break; 1501 } 1502 } 1503 1504 static void 1505 post_lb(DECL_ARGS) 1506 { 1507 1508 if (SEC_LIBRARY == n->sec) 1509 outflags |= MMAN_br; 1510 } 1511 1512 static int 1513 pre_lk(DECL_ARGS) 1514 { 1515 const struct roff_node *link, *descr; 1516 1517 if (NULL == (link = n->child)) 1518 return 0; 1519 1520 if (NULL != (descr = link->next)) { 1521 font_push('I'); 1522 while (NULL != descr) { 1523 print_word(descr->string); 1524 descr = descr->next; 1525 } 1526 print_word(":"); 1527 font_pop(); 1528 } 1529 1530 font_push('B'); 1531 print_word(link->string); 1532 font_pop(); 1533 return 0; 1534 } 1535 1536 static int 1537 pre_ll(DECL_ARGS) 1538 { 1539 1540 print_line(".ll", 0); 1541 return 1; 1542 } 1543 1544 static int 1545 pre_li(DECL_ARGS) 1546 { 1547 1548 font_push('R'); 1549 return 1; 1550 } 1551 1552 static int 1553 pre_nm(DECL_ARGS) 1554 { 1555 char *name; 1556 1557 if (n->type == ROFFT_BLOCK) { 1558 outflags |= MMAN_Bk; 1559 pre_syn(n); 1560 } 1561 if (n->type != ROFFT_ELEM && n->type != ROFFT_HEAD) 1562 return 1; 1563 name = n->child ? n->child->string : meta->name; 1564 if (NULL == name) 1565 return 0; 1566 if (n->type == ROFFT_HEAD) { 1567 if (NULL == n->parent->prev) 1568 outflags |= MMAN_sp; 1569 print_block(".HP", 0); 1570 printf(" %zun", strlen(name) + 1); 1571 outflags |= MMAN_nl; 1572 } 1573 font_push('B'); 1574 if (NULL == n->child) 1575 print_word(meta->name); 1576 return 1; 1577 } 1578 1579 static void 1580 post_nm(DECL_ARGS) 1581 { 1582 1583 switch (n->type) { 1584 case ROFFT_BLOCK: 1585 outflags &= ~MMAN_Bk; 1586 break; 1587 case ROFFT_HEAD: 1588 case ROFFT_ELEM: 1589 if (n->child != NULL || meta->name != NULL) 1590 font_pop(); 1591 break; 1592 default: 1593 break; 1594 } 1595 } 1596 1597 static int 1598 pre_no(DECL_ARGS) 1599 { 1600 1601 outflags |= MMAN_spc_force; 1602 return 1; 1603 } 1604 1605 static int 1606 pre_ns(DECL_ARGS) 1607 { 1608 1609 outflags &= ~MMAN_spc; 1610 return 0; 1611 } 1612 1613 static void 1614 post_pf(DECL_ARGS) 1615 { 1616 1617 if ( ! (n->next == NULL || n->next->flags & MDOC_LINE)) 1618 outflags &= ~MMAN_spc; 1619 } 1620 1621 static int 1622 pre_pp(DECL_ARGS) 1623 { 1624 1625 if (MDOC_It != n->parent->tok) 1626 outflags |= MMAN_PP; 1627 outflags |= MMAN_sp | MMAN_nl; 1628 outflags &= ~MMAN_br; 1629 return 0; 1630 } 1631 1632 static int 1633 pre_rs(DECL_ARGS) 1634 { 1635 1636 if (SEC_SEE_ALSO == n->sec) { 1637 outflags |= MMAN_PP | MMAN_sp | MMAN_nl; 1638 outflags &= ~MMAN_br; 1639 } 1640 return 1; 1641 } 1642 1643 static int 1644 pre_rv(DECL_ARGS) 1645 { 1646 struct roff_node *nch; 1647 1648 outflags |= MMAN_br | MMAN_nl; 1649 1650 if (n->child != NULL) { 1651 print_word("The"); 1652 1653 for (nch = n->child; nch != NULL; nch = nch->next) { 1654 font_push('B'); 1655 print_word(nch->string); 1656 font_pop(); 1657 1658 outflags &= ~MMAN_spc; 1659 print_word("()"); 1660 1661 if (nch->next == NULL) 1662 continue; 1663 1664 if (nch->prev != NULL || nch->next->next != NULL) { 1665 outflags &= ~MMAN_spc; 1666 print_word(","); 1667 } 1668 if (nch->next->next == NULL) 1669 print_word("and"); 1670 } 1671 1672 if (n->child != NULL && n->child->next != NULL) 1673 print_word("functions return"); 1674 else 1675 print_word("function returns"); 1676 1677 print_word("the value\\~0 if successful;"); 1678 } else 1679 print_word("Upon successful completion, " 1680 "the value\\~0 is returned;"); 1681 1682 print_word("otherwise the value\\~\\-1 is returned" 1683 " and the global variable"); 1684 1685 font_push('I'); 1686 print_word("errno"); 1687 font_pop(); 1688 1689 print_word("is set to indicate the error."); 1690 outflags |= MMAN_nl; 1691 return 0; 1692 } 1693 1694 static int 1695 pre_skip(DECL_ARGS) 1696 { 1697 1698 return 0; 1699 } 1700 1701 static int 1702 pre_sm(DECL_ARGS) 1703 { 1704 1705 if (NULL == n->child) 1706 outflags ^= MMAN_Sm; 1707 else if (0 == strcmp("on", n->child->string)) 1708 outflags |= MMAN_Sm; 1709 else 1710 outflags &= ~MMAN_Sm; 1711 1712 if (MMAN_Sm & outflags) 1713 outflags |= MMAN_spc; 1714 1715 return 0; 1716 } 1717 1718 static int 1719 pre_sp(DECL_ARGS) 1720 { 1721 1722 if (MMAN_PP & outflags) { 1723 outflags &= ~MMAN_PP; 1724 print_line(".PP", 0); 1725 } else 1726 print_line(".sp", 0); 1727 return 1; 1728 } 1729 1730 static void 1731 post_sp(DECL_ARGS) 1732 { 1733 1734 outflags |= MMAN_nl; 1735 } 1736 1737 static int 1738 pre_sy(DECL_ARGS) 1739 { 1740 1741 font_push('B'); 1742 return 1; 1743 } 1744 1745 static int 1746 pre_vt(DECL_ARGS) 1747 { 1748 1749 if (MDOC_SYNPRETTY & n->flags) { 1750 switch (n->type) { 1751 case ROFFT_BLOCK: 1752 pre_syn(n); 1753 return 1; 1754 case ROFFT_BODY: 1755 break; 1756 default: 1757 return 0; 1758 } 1759 } 1760 font_push('I'); 1761 return 1; 1762 } 1763 1764 static void 1765 post_vt(DECL_ARGS) 1766 { 1767 1768 if (n->flags & MDOC_SYNPRETTY && n->type != ROFFT_BODY) 1769 return; 1770 font_pop(); 1771 } 1772 1773 static int 1774 pre_xr(DECL_ARGS) 1775 { 1776 1777 n = n->child; 1778 if (NULL == n) 1779 return 0; 1780 print_node(meta, n); 1781 n = n->next; 1782 if (NULL == n) 1783 return 0; 1784 outflags &= ~MMAN_spc; 1785 print_word("("); 1786 print_node(meta, n); 1787 print_word(")"); 1788 return 0; 1789 } 1790 1791 static int 1792 pre_ux(DECL_ARGS) 1793 { 1794 1795 print_word(manacts[n->tok].prefix); 1796 if (NULL == n->child) 1797 return 0; 1798 outflags &= ~MMAN_spc; 1799 print_word("\\ "); 1800 outflags &= ~MMAN_spc; 1801 return 1; 1802 } 1803