1 /* $Id: mdoc_man.c,v 1.137 2021/07/04 15:38:26 schwarze Exp $ */ 2 /* 3 * Copyright (c) 2011-2021 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 "config.h" 18 19 #include <sys/types.h> 20 21 #include <assert.h> 22 #include <stdio.h> 23 #include <stdlib.h> 24 #include <string.h> 25 26 #include "mandoc_aux.h" 27 #include "mandoc.h" 28 #include "roff.h" 29 #include "mdoc.h" 30 #include "man.h" 31 #include "out.h" 32 #include "main.h" 33 34 #define DECL_ARGS const struct roff_meta *meta, struct roff_node *n 35 36 typedef int (*int_fp)(DECL_ARGS); 37 typedef void (*void_fp)(DECL_ARGS); 38 39 struct mdoc_man_act { 40 int_fp cond; /* DON'T run actions */ 41 int_fp pre; /* pre-node action */ 42 void_fp post; /* post-node action */ 43 const char *prefix; /* pre-node string constant */ 44 const char *suffix; /* post-node string constant */ 45 }; 46 47 static int cond_body(DECL_ARGS); 48 static int cond_head(DECL_ARGS); 49 static void font_push(char); 50 static void font_pop(void); 51 static int man_strlen(const char *); 52 static void mid_it(void); 53 static void post__t(DECL_ARGS); 54 static void post_aq(DECL_ARGS); 55 static void post_bd(DECL_ARGS); 56 static void post_bf(DECL_ARGS); 57 static void post_bk(DECL_ARGS); 58 static void post_bl(DECL_ARGS); 59 static void post_dl(DECL_ARGS); 60 static void post_en(DECL_ARGS); 61 static void post_enc(DECL_ARGS); 62 static void post_eo(DECL_ARGS); 63 static void post_fa(DECL_ARGS); 64 static void post_fd(DECL_ARGS); 65 static void post_fl(DECL_ARGS); 66 static void post_fn(DECL_ARGS); 67 static void post_fo(DECL_ARGS); 68 static void post_font(DECL_ARGS); 69 static void post_in(DECL_ARGS); 70 static void post_it(DECL_ARGS); 71 static void post_lb(DECL_ARGS); 72 static void post_nm(DECL_ARGS); 73 static void post_percent(DECL_ARGS); 74 static void post_pf(DECL_ARGS); 75 static void post_sect(DECL_ARGS); 76 static void post_vt(DECL_ARGS); 77 static int pre__t(DECL_ARGS); 78 static int pre_abort(DECL_ARGS); 79 static int pre_an(DECL_ARGS); 80 static int pre_ap(DECL_ARGS); 81 static int pre_aq(DECL_ARGS); 82 static int pre_bd(DECL_ARGS); 83 static int pre_bf(DECL_ARGS); 84 static int pre_bk(DECL_ARGS); 85 static int pre_bl(DECL_ARGS); 86 static void pre_br(DECL_ARGS); 87 static int pre_dl(DECL_ARGS); 88 static int pre_en(DECL_ARGS); 89 static int pre_enc(DECL_ARGS); 90 static int pre_em(DECL_ARGS); 91 static int pre_skip(DECL_ARGS); 92 static int pre_eo(DECL_ARGS); 93 static int pre_ex(DECL_ARGS); 94 static int pre_fa(DECL_ARGS); 95 static int pre_fd(DECL_ARGS); 96 static int pre_fl(DECL_ARGS); 97 static int pre_fn(DECL_ARGS); 98 static int pre_fo(DECL_ARGS); 99 static void pre_ft(DECL_ARGS); 100 static int pre_Ft(DECL_ARGS); 101 static int pre_in(DECL_ARGS); 102 static int pre_it(DECL_ARGS); 103 static int pre_lk(DECL_ARGS); 104 static int pre_li(DECL_ARGS); 105 static int pre_nm(DECL_ARGS); 106 static int pre_no(DECL_ARGS); 107 static void pre_noarg(DECL_ARGS); 108 static int pre_ns(DECL_ARGS); 109 static void pre_onearg(DECL_ARGS); 110 static int pre_pp(DECL_ARGS); 111 static int pre_rs(DECL_ARGS); 112 static int pre_sm(DECL_ARGS); 113 static void pre_sp(DECL_ARGS); 114 static int pre_sect(DECL_ARGS); 115 static int pre_sy(DECL_ARGS); 116 static void pre_syn(struct roff_node *); 117 static void pre_ta(DECL_ARGS); 118 static int pre_vt(DECL_ARGS); 119 static int pre_xr(DECL_ARGS); 120 static void print_word(const char *); 121 static void print_line(const char *, int); 122 static void print_block(const char *, int); 123 static void print_offs(const char *, int); 124 static void print_width(const struct mdoc_bl *, 125 const struct roff_node *); 126 static void print_count(int *); 127 static void print_node(DECL_ARGS); 128 129 static const void_fp roff_man_acts[ROFF_MAX] = { 130 pre_br, /* br */ 131 pre_onearg, /* ce */ 132 pre_noarg, /* fi */ 133 pre_ft, /* ft */ 134 pre_onearg, /* ll */ 135 pre_onearg, /* mc */ 136 pre_noarg, /* nf */ 137 pre_onearg, /* po */ 138 pre_onearg, /* rj */ 139 pre_sp, /* sp */ 140 pre_ta, /* ta */ 141 pre_onearg, /* ti */ 142 }; 143 144 static const struct mdoc_man_act mdoc_man_acts[MDOC_MAX - MDOC_Dd] = { 145 { NULL, NULL, NULL, NULL, NULL }, /* Dd */ 146 { NULL, NULL, NULL, NULL, NULL }, /* Dt */ 147 { NULL, NULL, NULL, NULL, NULL }, /* Os */ 148 { NULL, pre_sect, post_sect, ".SH", NULL }, /* Sh */ 149 { NULL, pre_sect, post_sect, ".SS", NULL }, /* Ss */ 150 { NULL, pre_pp, NULL, NULL, NULL }, /* Pp */ 151 { cond_body, pre_dl, post_dl, NULL, NULL }, /* D1 */ 152 { cond_body, pre_dl, post_dl, NULL, NULL }, /* Dl */ 153 { cond_body, pre_bd, post_bd, NULL, NULL }, /* Bd */ 154 { NULL, NULL, NULL, NULL, NULL }, /* Ed */ 155 { cond_body, pre_bl, post_bl, NULL, NULL }, /* Bl */ 156 { NULL, NULL, NULL, NULL, NULL }, /* El */ 157 { NULL, pre_it, post_it, NULL, NULL }, /* It */ 158 { NULL, pre_em, post_font, NULL, NULL }, /* Ad */ 159 { NULL, pre_an, NULL, NULL, NULL }, /* An */ 160 { NULL, pre_ap, NULL, NULL, NULL }, /* Ap */ 161 { NULL, pre_em, post_font, NULL, NULL }, /* Ar */ 162 { NULL, pre_sy, post_font, NULL, NULL }, /* Cd */ 163 { NULL, pre_sy, post_font, NULL, NULL }, /* Cm */ 164 { NULL, pre_li, post_font, NULL, NULL }, /* Dv */ 165 { NULL, pre_li, post_font, NULL, NULL }, /* Er */ 166 { NULL, pre_li, post_font, NULL, NULL }, /* Ev */ 167 { NULL, pre_ex, NULL, NULL, NULL }, /* Ex */ 168 { NULL, pre_fa, post_fa, NULL, NULL }, /* Fa */ 169 { NULL, pre_fd, post_fd, NULL, NULL }, /* Fd */ 170 { NULL, pre_fl, post_fl, NULL, NULL }, /* Fl */ 171 { NULL, pre_fn, post_fn, NULL, NULL }, /* Fn */ 172 { NULL, pre_Ft, post_font, NULL, NULL }, /* Ft */ 173 { NULL, pre_sy, post_font, NULL, NULL }, /* Ic */ 174 { NULL, pre_in, post_in, NULL, NULL }, /* In */ 175 { NULL, pre_li, post_font, NULL, NULL }, /* Li */ 176 { cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */ 177 { NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */ 178 { cond_body, pre_enc, post_enc, "[", "]" }, /* Op */ 179 { NULL, pre_abort, NULL, NULL, NULL }, /* Ot */ 180 { NULL, pre_em, post_font, NULL, NULL }, /* Pa */ 181 { NULL, pre_ex, NULL, NULL, NULL }, /* Rv */ 182 { NULL, NULL, NULL, NULL, NULL }, /* St */ 183 { NULL, pre_em, post_font, NULL, NULL }, /* Va */ 184 { NULL, pre_vt, post_vt, NULL, NULL }, /* Vt */ 185 { NULL, pre_xr, NULL, NULL, NULL }, /* Xr */ 186 { NULL, NULL, post_percent, NULL, NULL }, /* %A */ 187 { NULL, pre_em, post_percent, NULL, NULL }, /* %B */ 188 { NULL, NULL, post_percent, NULL, NULL }, /* %D */ 189 { NULL, pre_em, post_percent, NULL, NULL }, /* %I */ 190 { NULL, pre_em, post_percent, NULL, NULL }, /* %J */ 191 { NULL, NULL, post_percent, NULL, NULL }, /* %N */ 192 { NULL, NULL, post_percent, NULL, NULL }, /* %O */ 193 { NULL, NULL, post_percent, NULL, NULL }, /* %P */ 194 { NULL, NULL, post_percent, NULL, NULL }, /* %R */ 195 { NULL, pre__t, post__t, NULL, NULL }, /* %T */ 196 { NULL, NULL, post_percent, NULL, NULL }, /* %V */ 197 { NULL, NULL, NULL, NULL, NULL }, /* Ac */ 198 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Ao */ 199 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Aq */ 200 { NULL, NULL, NULL, NULL, NULL }, /* At */ 201 { NULL, NULL, NULL, NULL, NULL }, /* Bc */ 202 { NULL, pre_bf, post_bf, NULL, NULL }, /* Bf */ 203 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bo */ 204 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bq */ 205 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bsx */ 206 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bx */ 207 { NULL, pre_skip, NULL, NULL, NULL }, /* Db */ 208 { NULL, NULL, NULL, NULL, NULL }, /* Dc */ 209 { cond_body, pre_enc, post_enc, "\\(lq", "\\(rq" }, /* Do */ 210 { cond_body, pre_enc, post_enc, "\\(lq", "\\(rq" }, /* Dq */ 211 { NULL, NULL, NULL, NULL, NULL }, /* Ec */ 212 { NULL, NULL, NULL, NULL, NULL }, /* Ef */ 213 { NULL, pre_em, post_font, NULL, NULL }, /* Em */ 214 { cond_body, pre_eo, post_eo, NULL, NULL }, /* Eo */ 215 { NULL, pre_bk, post_bk, NULL, NULL }, /* Fx */ 216 { NULL, pre_sy, post_font, NULL, NULL }, /* Ms */ 217 { NULL, pre_no, NULL, NULL, NULL }, /* No */ 218 { NULL, pre_ns, NULL, NULL, NULL }, /* Ns */ 219 { NULL, pre_bk, post_bk, NULL, NULL }, /* Nx */ 220 { NULL, pre_bk, post_bk, NULL, NULL }, /* Ox */ 221 { NULL, NULL, NULL, NULL, NULL }, /* Pc */ 222 { NULL, NULL, post_pf, NULL, NULL }, /* Pf */ 223 { cond_body, pre_enc, post_enc, "(", ")" }, /* Po */ 224 { cond_body, pre_enc, post_enc, "(", ")" }, /* Pq */ 225 { NULL, NULL, NULL, NULL, NULL }, /* Qc */ 226 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Ql */ 227 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qo */ 228 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qq */ 229 { NULL, NULL, NULL, NULL, NULL }, /* Re */ 230 { cond_body, pre_rs, NULL, NULL, NULL }, /* Rs */ 231 { NULL, NULL, NULL, NULL, NULL }, /* Sc */ 232 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* So */ 233 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Sq */ 234 { NULL, pre_sm, NULL, NULL, NULL }, /* Sm */ 235 { NULL, pre_em, post_font, NULL, NULL }, /* Sx */ 236 { NULL, pre_sy, post_font, NULL, NULL }, /* Sy */ 237 { NULL, pre_li, post_font, NULL, NULL }, /* Tn */ 238 { NULL, NULL, NULL, NULL, NULL }, /* Ux */ 239 { NULL, NULL, NULL, NULL, NULL }, /* Xc */ 240 { NULL, NULL, NULL, NULL, NULL }, /* Xo */ 241 { NULL, pre_fo, post_fo, NULL, NULL }, /* Fo */ 242 { NULL, NULL, NULL, NULL, NULL }, /* Fc */ 243 { cond_body, pre_enc, post_enc, "[", "]" }, /* Oo */ 244 { NULL, NULL, NULL, NULL, NULL }, /* Oc */ 245 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bk */ 246 { NULL, NULL, NULL, NULL, NULL }, /* Ek */ 247 { NULL, NULL, NULL, NULL, NULL }, /* Bt */ 248 { NULL, NULL, NULL, NULL, NULL }, /* Hf */ 249 { NULL, pre_em, post_font, NULL, NULL }, /* Fr */ 250 { NULL, NULL, NULL, NULL, NULL }, /* Ud */ 251 { NULL, NULL, post_lb, NULL, NULL }, /* Lb */ 252 { NULL, pre_abort, NULL, NULL, NULL }, /* Lp */ 253 { NULL, pre_lk, NULL, NULL, NULL }, /* Lk */ 254 { NULL, pre_em, post_font, NULL, NULL }, /* Mt */ 255 { cond_body, pre_enc, post_enc, "{", "}" }, /* Brq */ 256 { cond_body, pre_enc, post_enc, "{", "}" }, /* Bro */ 257 { NULL, NULL, NULL, NULL, NULL }, /* Brc */ 258 { NULL, NULL, post_percent, NULL, NULL }, /* %C */ 259 { NULL, pre_skip, NULL, NULL, NULL }, /* Es */ 260 { cond_body, pre_en, post_en, NULL, NULL }, /* En */ 261 { NULL, pre_bk, post_bk, NULL, NULL }, /* Dx */ 262 { NULL, NULL, post_percent, NULL, NULL }, /* %Q */ 263 { NULL, NULL, post_percent, NULL, NULL }, /* %U */ 264 { NULL, NULL, NULL, NULL, NULL }, /* Ta */ 265 { NULL, pre_skip, NULL, NULL, NULL }, /* Tg */ 266 }; 267 static const struct mdoc_man_act *mdoc_man_act(enum roff_tok); 268 269 static int outflags; 270 #define MMAN_spc (1 << 0) /* blank character before next word */ 271 #define MMAN_spc_force (1 << 1) /* even before trailing punctuation */ 272 #define MMAN_nl (1 << 2) /* break man(7) code line */ 273 #define MMAN_br (1 << 3) /* break output line */ 274 #define MMAN_sp (1 << 4) /* insert a blank output line */ 275 #define MMAN_PP (1 << 5) /* reset indentation etc. */ 276 #define MMAN_Sm (1 << 6) /* horizontal spacing mode */ 277 #define MMAN_Bk (1 << 7) /* word keep mode */ 278 #define MMAN_Bk_susp (1 << 8) /* suspend this (after a macro) */ 279 #define MMAN_An_split (1 << 9) /* author mode is "split" */ 280 #define MMAN_An_nosplit (1 << 10) /* author mode is "nosplit" */ 281 #define MMAN_PD (1 << 11) /* inter-paragraph spacing disabled */ 282 #define MMAN_nbrword (1 << 12) /* do not break the next word */ 283 284 #define BL_STACK_MAX 32 285 286 static int Bl_stack[BL_STACK_MAX]; /* offsets [chars] */ 287 static int Bl_stack_post[BL_STACK_MAX]; /* add final .RE */ 288 static int Bl_stack_len; /* number of nested Bl blocks */ 289 static int TPremain; /* characters before tag is full */ 290 291 static struct { 292 char *head; 293 char *tail; 294 size_t size; 295 } fontqueue; 296 297 298 static const struct mdoc_man_act * 299 mdoc_man_act(enum roff_tok tok) 300 { 301 assert(tok >= MDOC_Dd && tok <= MDOC_MAX); 302 return mdoc_man_acts + (tok - MDOC_Dd); 303 } 304 305 static int 306 man_strlen(const char *cp) 307 { 308 size_t rsz; 309 int skip, sz; 310 311 sz = 0; 312 skip = 0; 313 for (;;) { 314 rsz = strcspn(cp, "\\"); 315 if (rsz) { 316 cp += rsz; 317 if (skip) { 318 skip = 0; 319 rsz--; 320 } 321 sz += rsz; 322 } 323 if ('\0' == *cp) 324 break; 325 cp++; 326 switch (mandoc_escape(&cp, NULL, NULL)) { 327 case ESCAPE_ERROR: 328 return sz; 329 case ESCAPE_UNICODE: 330 case ESCAPE_NUMBERED: 331 case ESCAPE_SPECIAL: 332 case ESCAPE_UNDEF: 333 case ESCAPE_OVERSTRIKE: 334 if (skip) 335 skip = 0; 336 else 337 sz++; 338 break; 339 case ESCAPE_SKIPCHAR: 340 skip = 1; 341 break; 342 default: 343 break; 344 } 345 } 346 return sz; 347 } 348 349 static void 350 font_push(char newfont) 351 { 352 353 if (fontqueue.head + fontqueue.size <= ++fontqueue.tail) { 354 fontqueue.size += 8; 355 fontqueue.head = mandoc_realloc(fontqueue.head, 356 fontqueue.size); 357 } 358 *fontqueue.tail = newfont; 359 print_word(""); 360 printf("\\f"); 361 putchar(newfont); 362 outflags &= ~MMAN_spc; 363 } 364 365 static void 366 font_pop(void) 367 { 368 369 if (fontqueue.tail > fontqueue.head) 370 fontqueue.tail--; 371 outflags &= ~MMAN_spc; 372 print_word(""); 373 printf("\\f"); 374 putchar(*fontqueue.tail); 375 } 376 377 static void 378 print_word(const char *s) 379 { 380 381 if ((MMAN_PP | MMAN_sp | MMAN_br | MMAN_nl) & outflags) { 382 /* 383 * If we need a newline, print it now and start afresh. 384 */ 385 if (MMAN_PP & outflags) { 386 if (MMAN_sp & outflags) { 387 if (MMAN_PD & outflags) { 388 printf("\n.PD"); 389 outflags &= ~MMAN_PD; 390 } 391 } else if ( ! (MMAN_PD & outflags)) { 392 printf("\n.PD 0"); 393 outflags |= MMAN_PD; 394 } 395 printf("\n.PP\n"); 396 } else if (MMAN_sp & outflags) 397 printf("\n.sp\n"); 398 else if (MMAN_br & outflags) 399 printf("\n.br\n"); 400 else if (MMAN_nl & outflags) 401 putchar('\n'); 402 outflags &= ~(MMAN_PP|MMAN_sp|MMAN_br|MMAN_nl|MMAN_spc); 403 if (1 == TPremain) 404 printf(".br\n"); 405 TPremain = 0; 406 } else if (MMAN_spc & outflags) { 407 /* 408 * If we need a space, only print it if 409 * (1) it is forced by `No' or 410 * (2) what follows is not terminating punctuation or 411 * (3) what follows is longer than one character. 412 */ 413 if (MMAN_spc_force & outflags || '\0' == s[0] || 414 NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1]) { 415 if (MMAN_Bk & outflags && 416 ! (MMAN_Bk_susp & outflags)) 417 putchar('\\'); 418 putchar(' '); 419 if (TPremain) 420 TPremain--; 421 } 422 } 423 424 /* 425 * Reassign needing space if we're not following opening 426 * punctuation. 427 */ 428 if (MMAN_Sm & outflags && ('\0' == s[0] || 429 (('(' != s[0] && '[' != s[0]) || '\0' != s[1]))) 430 outflags |= MMAN_spc; 431 else 432 outflags &= ~MMAN_spc; 433 outflags &= ~(MMAN_spc_force | MMAN_Bk_susp); 434 435 for ( ; *s; s++) { 436 switch (*s) { 437 case ASCII_NBRSP: 438 printf("\\ "); 439 break; 440 case ASCII_HYPH: 441 putchar('-'); 442 break; 443 case ASCII_BREAK: 444 printf("\\:"); 445 break; 446 case ' ': 447 if (MMAN_nbrword & outflags) { 448 printf("\\ "); 449 break; 450 } 451 /* FALLTHROUGH */ 452 default: 453 putchar((unsigned char)*s); 454 break; 455 } 456 if (TPremain) 457 TPremain--; 458 } 459 outflags &= ~MMAN_nbrword; 460 } 461 462 static void 463 print_line(const char *s, int newflags) 464 { 465 466 outflags |= MMAN_nl; 467 print_word(s); 468 outflags |= newflags; 469 } 470 471 static void 472 print_block(const char *s, int newflags) 473 { 474 475 outflags &= ~MMAN_PP; 476 if (MMAN_sp & outflags) { 477 outflags &= ~(MMAN_sp | MMAN_br); 478 if (MMAN_PD & outflags) { 479 print_line(".PD", 0); 480 outflags &= ~MMAN_PD; 481 } 482 } else if (! (MMAN_PD & outflags)) 483 print_line(".PD 0", MMAN_PD); 484 outflags |= MMAN_nl; 485 print_word(s); 486 outflags |= MMAN_Bk_susp | newflags; 487 } 488 489 static void 490 print_offs(const char *v, int keywords) 491 { 492 char buf[24]; 493 struct roffsu su; 494 const char *end; 495 int sz; 496 497 print_line(".RS", MMAN_Bk_susp); 498 499 /* Convert v into a number (of characters). */ 500 if (NULL == v || '\0' == *v || (keywords && !strcmp(v, "left"))) 501 sz = 0; 502 else if (keywords && !strcmp(v, "indent")) 503 sz = 6; 504 else if (keywords && !strcmp(v, "indent-two")) 505 sz = 12; 506 else { 507 end = a2roffsu(v, &su, SCALE_EN); 508 if (end == NULL || *end != '\0') 509 sz = man_strlen(v); 510 else if (SCALE_EN == su.unit) 511 sz = su.scale; 512 else { 513 /* 514 * XXX 515 * If we are inside an enclosing list, 516 * there is no easy way to add the two 517 * indentations because they are provided 518 * in terms of different units. 519 */ 520 print_word(v); 521 outflags |= MMAN_nl; 522 return; 523 } 524 } 525 526 /* 527 * We are inside an enclosing list. 528 * Add the two indentations. 529 */ 530 if (Bl_stack_len) 531 sz += Bl_stack[Bl_stack_len - 1]; 532 533 (void)snprintf(buf, sizeof(buf), "%dn", sz); 534 print_word(buf); 535 outflags |= MMAN_nl; 536 } 537 538 /* 539 * Set up the indentation for a list item; used from pre_it(). 540 */ 541 static void 542 print_width(const struct mdoc_bl *bl, const struct roff_node *child) 543 { 544 char buf[24]; 545 struct roffsu su; 546 const char *end; 547 int numeric, remain, sz, chsz; 548 549 numeric = 1; 550 remain = 0; 551 552 /* Convert the width into a number (of characters). */ 553 if (bl->width == NULL) 554 sz = (bl->type == LIST_hang) ? 6 : 0; 555 else { 556 end = a2roffsu(bl->width, &su, SCALE_MAX); 557 if (end == NULL || *end != '\0') 558 sz = man_strlen(bl->width); 559 else if (SCALE_EN == su.unit) 560 sz = su.scale; 561 else { 562 sz = 0; 563 numeric = 0; 564 } 565 } 566 567 /* XXX Rough estimation, might have multiple parts. */ 568 if (bl->type == LIST_enum) 569 chsz = (bl->count > 8) + 1; 570 else if (child != NULL && child->type == ROFFT_TEXT) 571 chsz = man_strlen(child->string); 572 else 573 chsz = 0; 574 575 /* Maybe we are inside an enclosing list? */ 576 mid_it(); 577 578 /* 579 * Save our own indentation, 580 * such that child lists can use it. 581 */ 582 Bl_stack[Bl_stack_len++] = sz + 2; 583 584 /* Set up the current list. */ 585 if (chsz > sz && bl->type != LIST_tag) 586 print_block(".HP", MMAN_spc); 587 else { 588 print_block(".TP", MMAN_spc); 589 remain = sz + 2; 590 } 591 if (numeric) { 592 (void)snprintf(buf, sizeof(buf), "%dn", sz + 2); 593 print_word(buf); 594 } else 595 print_word(bl->width); 596 TPremain = remain; 597 } 598 599 static void 600 print_count(int *count) 601 { 602 char buf[24]; 603 604 (void)snprintf(buf, sizeof(buf), "%d.\\&", ++*count); 605 print_word(buf); 606 } 607 608 void 609 man_mdoc(void *arg, const struct roff_meta *mdoc) 610 { 611 struct roff_node *n; 612 613 printf(".\\\" Automatically generated from an mdoc input file." 614 " Do not edit.\n"); 615 for (n = mdoc->first->child; n != NULL; n = n->next) { 616 if (n->type != ROFFT_COMMENT) 617 break; 618 printf(".\\\"%s\n", n->string); 619 } 620 621 printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"\n", 622 mdoc->title, (mdoc->msec == NULL ? "" : mdoc->msec), 623 mdoc->date, mdoc->os, mdoc->vol); 624 625 /* Disable hyphenation and if nroff, disable justification. */ 626 printf(".nh\n.if n .ad l"); 627 628 outflags = MMAN_nl | MMAN_Sm; 629 if (0 == fontqueue.size) { 630 fontqueue.size = 8; 631 fontqueue.head = fontqueue.tail = mandoc_malloc(8); 632 *fontqueue.tail = 'R'; 633 } 634 for (; n != NULL; n = n->next) 635 print_node(mdoc, n); 636 putchar('\n'); 637 } 638 639 static void 640 print_node(DECL_ARGS) 641 { 642 const struct mdoc_man_act *act; 643 struct roff_node *sub; 644 int cond, do_sub; 645 646 if (n->flags & NODE_NOPRT) 647 return; 648 649 /* 650 * Break the line if we were parsed subsequent the current node. 651 * This makes the page structure be more consistent. 652 */ 653 if (outflags & MMAN_spc && 654 n->flags & NODE_LINE && 655 !roff_node_transparent(n)) 656 outflags |= MMAN_nl; 657 658 act = NULL; 659 cond = 0; 660 do_sub = 1; 661 n->flags &= ~NODE_ENDED; 662 663 switch (n->type) { 664 case ROFFT_EQN: 665 case ROFFT_TBL: 666 mandoc_msg(n->type == ROFFT_EQN ? MANDOCERR_EQN_TMAN : 667 MANDOCERR_TBL_TMAN, n->line, n->pos, NULL); 668 outflags |= MMAN_PP | MMAN_sp | MMAN_nl; 669 print_word("The"); 670 print_line(".B \\-T man", MMAN_nl); 671 print_word("output mode does not support"); 672 print_word(n->type == ROFFT_EQN ? "eqn(7)" : "tbl(7)"); 673 print_word("input."); 674 outflags |= MMAN_PP | MMAN_sp | MMAN_nl; 675 return; 676 case ROFFT_TEXT: 677 /* 678 * Make sure that we don't happen to start with a 679 * control character at the start of a line. 680 */ 681 if (MMAN_nl & outflags && 682 ('.' == *n->string || '\'' == *n->string)) { 683 print_word(""); 684 printf("\\&"); 685 outflags &= ~MMAN_spc; 686 } 687 if (n->flags & NODE_DELIMC) 688 outflags &= ~(MMAN_spc | MMAN_spc_force); 689 else if (outflags & MMAN_Sm) 690 outflags |= MMAN_spc_force; 691 print_word(n->string); 692 if (n->flags & NODE_DELIMO) 693 outflags &= ~(MMAN_spc | MMAN_spc_force); 694 else if (outflags & MMAN_Sm) 695 outflags |= MMAN_spc; 696 break; 697 default: 698 if (n->tok < ROFF_MAX) { 699 (*roff_man_acts[n->tok])(meta, n); 700 return; 701 } 702 act = mdoc_man_act(n->tok); 703 cond = act->cond == NULL || (*act->cond)(meta, n); 704 if (cond && act->pre != NULL && 705 (n->end == ENDBODY_NOT || n->child != NULL)) 706 do_sub = (*act->pre)(meta, n); 707 break; 708 } 709 710 /* 711 * Conditionally run all child nodes. 712 * Note that this iterates over children instead of using 713 * recursion. This prevents unnecessary depth in the stack. 714 */ 715 if (do_sub) 716 for (sub = n->child; sub; sub = sub->next) 717 print_node(meta, sub); 718 719 /* 720 * Lastly, conditionally run the post-node handler. 721 */ 722 if (NODE_ENDED & n->flags) 723 return; 724 725 if (cond && act->post) 726 (*act->post)(meta, n); 727 728 if (ENDBODY_NOT != n->end) 729 n->body->flags |= NODE_ENDED; 730 } 731 732 static int 733 cond_head(DECL_ARGS) 734 { 735 736 return n->type == ROFFT_HEAD; 737 } 738 739 static int 740 cond_body(DECL_ARGS) 741 { 742 743 return n->type == ROFFT_BODY; 744 } 745 746 static int 747 pre_abort(DECL_ARGS) 748 { 749 abort(); 750 } 751 752 static int 753 pre_enc(DECL_ARGS) 754 { 755 const char *prefix; 756 757 prefix = mdoc_man_act(n->tok)->prefix; 758 if (NULL == prefix) 759 return 1; 760 print_word(prefix); 761 outflags &= ~MMAN_spc; 762 return 1; 763 } 764 765 static void 766 post_enc(DECL_ARGS) 767 { 768 const char *suffix; 769 770 suffix = mdoc_man_act(n->tok)->suffix; 771 if (NULL == suffix) 772 return; 773 outflags &= ~(MMAN_spc | MMAN_nl); 774 print_word(suffix); 775 } 776 777 static int 778 pre_ex(DECL_ARGS) 779 { 780 outflags |= MMAN_br | MMAN_nl; 781 return 1; 782 } 783 784 static void 785 post_font(DECL_ARGS) 786 { 787 788 font_pop(); 789 } 790 791 static void 792 post_percent(DECL_ARGS) 793 { 794 struct roff_node *np, *nn, *nnn; 795 796 if (mdoc_man_act(n->tok)->pre == pre_em) 797 font_pop(); 798 799 if ((nn = roff_node_next(n)) != NULL) { 800 np = roff_node_prev(n); 801 nnn = nn == NULL ? NULL : roff_node_next(nn); 802 if (nn->tok != n->tok || 803 (np != NULL && np->tok == n->tok) || 804 (nnn != NULL && nnn->tok == n->tok)) 805 print_word(","); 806 if (nn->tok == n->tok && 807 (nnn == NULL || nnn->tok != n->tok)) 808 print_word("and"); 809 } else { 810 print_word("."); 811 outflags |= MMAN_nl; 812 } 813 } 814 815 static int 816 pre__t(DECL_ARGS) 817 { 818 819 if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T) { 820 print_word("\\(lq"); 821 outflags &= ~MMAN_spc; 822 } else 823 font_push('I'); 824 return 1; 825 } 826 827 static void 828 post__t(DECL_ARGS) 829 { 830 831 if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T) { 832 outflags &= ~MMAN_spc; 833 print_word("\\(rq"); 834 } else 835 font_pop(); 836 post_percent(meta, n); 837 } 838 839 /* 840 * Print before a section header. 841 */ 842 static int 843 pre_sect(DECL_ARGS) 844 { 845 846 if (n->type == ROFFT_HEAD) { 847 outflags |= MMAN_sp; 848 print_block(mdoc_man_act(n->tok)->prefix, 0); 849 print_word(""); 850 putchar('\"'); 851 outflags &= ~MMAN_spc; 852 } 853 return 1; 854 } 855 856 /* 857 * Print subsequent a section header. 858 */ 859 static void 860 post_sect(DECL_ARGS) 861 { 862 863 if (n->type != ROFFT_HEAD) 864 return; 865 outflags &= ~MMAN_spc; 866 print_word(""); 867 putchar('\"'); 868 outflags |= MMAN_nl; 869 if (MDOC_Sh == n->tok && SEC_AUTHORS == n->sec) 870 outflags &= ~(MMAN_An_split | MMAN_An_nosplit); 871 } 872 873 /* See mdoc_term.c, synopsis_pre() for comments. */ 874 static void 875 pre_syn(struct roff_node *n) 876 { 877 struct roff_node *np; 878 879 if ((n->flags & NODE_SYNPRETTY) == 0 || 880 (np = roff_node_prev(n)) == NULL) 881 return; 882 883 if (np->tok == n->tok && 884 MDOC_Ft != n->tok && 885 MDOC_Fo != n->tok && 886 MDOC_Fn != n->tok) { 887 outflags |= MMAN_br; 888 return; 889 } 890 891 switch (np->tok) { 892 case MDOC_Fd: 893 case MDOC_Fn: 894 case MDOC_Fo: 895 case MDOC_In: 896 case MDOC_Vt: 897 outflags |= MMAN_sp; 898 break; 899 case MDOC_Ft: 900 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) { 901 outflags |= MMAN_sp; 902 break; 903 } 904 /* FALLTHROUGH */ 905 default: 906 outflags |= MMAN_br; 907 break; 908 } 909 } 910 911 static int 912 pre_an(DECL_ARGS) 913 { 914 915 switch (n->norm->An.auth) { 916 case AUTH_split: 917 outflags &= ~MMAN_An_nosplit; 918 outflags |= MMAN_An_split; 919 return 0; 920 case AUTH_nosplit: 921 outflags &= ~MMAN_An_split; 922 outflags |= MMAN_An_nosplit; 923 return 0; 924 default: 925 if (MMAN_An_split & outflags) 926 outflags |= MMAN_br; 927 else if (SEC_AUTHORS == n->sec && 928 ! (MMAN_An_nosplit & outflags)) 929 outflags |= MMAN_An_split; 930 return 1; 931 } 932 } 933 934 static int 935 pre_ap(DECL_ARGS) 936 { 937 938 outflags &= ~MMAN_spc; 939 print_word("'"); 940 outflags &= ~MMAN_spc; 941 return 0; 942 } 943 944 static int 945 pre_aq(DECL_ARGS) 946 { 947 948 print_word(n->child != NULL && n->child->next == NULL && 949 n->child->tok == MDOC_Mt ? "<" : "\\(la"); 950 outflags &= ~MMAN_spc; 951 return 1; 952 } 953 954 static void 955 post_aq(DECL_ARGS) 956 { 957 958 outflags &= ~(MMAN_spc | MMAN_nl); 959 print_word(n->child != NULL && n->child->next == NULL && 960 n->child->tok == MDOC_Mt ? ">" : "\\(ra"); 961 } 962 963 static int 964 pre_bd(DECL_ARGS) 965 { 966 outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br); 967 if (n->norm->Bd.type == DISP_unfilled || 968 n->norm->Bd.type == DISP_literal) 969 print_line(".nf", 0); 970 if (n->norm->Bd.comp == 0 && roff_node_prev(n->parent) != NULL) 971 outflags |= MMAN_sp; 972 print_offs(n->norm->Bd.offs, 1); 973 return 1; 974 } 975 976 static void 977 post_bd(DECL_ARGS) 978 { 979 enum roff_tok bef, now; 980 981 /* Close out this display. */ 982 print_line(".RE", MMAN_nl); 983 bef = n->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi; 984 if (n->last == NULL) 985 now = n->norm->Bd.type == DISP_unfilled || 986 n->norm->Bd.type == DISP_literal ? ROFF_nf : ROFF_fi; 987 else if (n->last->tok == ROFF_nf) 988 now = ROFF_nf; 989 else if (n->last->tok == ROFF_fi) 990 now = ROFF_fi; 991 else 992 now = n->last->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi; 993 if (bef != now) { 994 outflags |= MMAN_nl; 995 print_word("."); 996 outflags &= ~MMAN_spc; 997 print_word(roff_name[bef]); 998 outflags |= MMAN_nl; 999 } 1000 1001 /* Maybe we are inside an enclosing list? */ 1002 if (roff_node_next(n->parent) != NULL) 1003 mid_it(); 1004 } 1005 1006 static int 1007 pre_bf(DECL_ARGS) 1008 { 1009 1010 switch (n->type) { 1011 case ROFFT_BLOCK: 1012 return 1; 1013 case ROFFT_BODY: 1014 break; 1015 default: 1016 return 0; 1017 } 1018 switch (n->norm->Bf.font) { 1019 case FONT_Em: 1020 font_push('I'); 1021 break; 1022 case FONT_Sy: 1023 font_push('B'); 1024 break; 1025 default: 1026 font_push('R'); 1027 break; 1028 } 1029 return 1; 1030 } 1031 1032 static void 1033 post_bf(DECL_ARGS) 1034 { 1035 1036 if (n->type == ROFFT_BODY) 1037 font_pop(); 1038 } 1039 1040 static int 1041 pre_bk(DECL_ARGS) 1042 { 1043 switch (n->type) { 1044 case ROFFT_BLOCK: 1045 return 1; 1046 case ROFFT_BODY: 1047 case ROFFT_ELEM: 1048 outflags |= MMAN_Bk; 1049 return 1; 1050 default: 1051 return 0; 1052 } 1053 } 1054 1055 static void 1056 post_bk(DECL_ARGS) 1057 { 1058 switch (n->type) { 1059 case ROFFT_ELEM: 1060 while ((n = n->parent) != NULL) 1061 if (n->tok == MDOC_Bk) 1062 return; 1063 /* FALLTHROUGH */ 1064 case ROFFT_BODY: 1065 outflags &= ~MMAN_Bk; 1066 break; 1067 default: 1068 break; 1069 } 1070 } 1071 1072 static int 1073 pre_bl(DECL_ARGS) 1074 { 1075 size_t icol; 1076 1077 /* 1078 * print_offs() will increase the -offset to account for 1079 * a possible enclosing .It, but any enclosed .It blocks 1080 * just nest and do not add up their indentation. 1081 */ 1082 if (n->norm->Bl.offs) { 1083 print_offs(n->norm->Bl.offs, 0); 1084 Bl_stack[Bl_stack_len++] = 0; 1085 } 1086 1087 switch (n->norm->Bl.type) { 1088 case LIST_enum: 1089 n->norm->Bl.count = 0; 1090 return 1; 1091 case LIST_column: 1092 break; 1093 default: 1094 return 1; 1095 } 1096 1097 if (n->child != NULL) { 1098 print_line(".TS", MMAN_nl); 1099 for (icol = 0; icol < n->norm->Bl.ncols; icol++) 1100 print_word("l"); 1101 print_word("."); 1102 } 1103 outflags |= MMAN_nl; 1104 return 1; 1105 } 1106 1107 static void 1108 post_bl(DECL_ARGS) 1109 { 1110 1111 switch (n->norm->Bl.type) { 1112 case LIST_column: 1113 if (n->child != NULL) 1114 print_line(".TE", 0); 1115 break; 1116 case LIST_enum: 1117 n->norm->Bl.count = 0; 1118 break; 1119 default: 1120 break; 1121 } 1122 1123 if (n->norm->Bl.offs) { 1124 print_line(".RE", MMAN_nl); 1125 assert(Bl_stack_len); 1126 Bl_stack_len--; 1127 assert(Bl_stack[Bl_stack_len] == 0); 1128 } else { 1129 outflags |= MMAN_PP | MMAN_nl; 1130 outflags &= ~(MMAN_sp | MMAN_br); 1131 } 1132 1133 /* Maybe we are inside an enclosing list? */ 1134 if (roff_node_next(n->parent) != NULL) 1135 mid_it(); 1136 } 1137 1138 static void 1139 pre_br(DECL_ARGS) 1140 { 1141 outflags |= MMAN_br; 1142 } 1143 1144 static int 1145 pre_dl(DECL_ARGS) 1146 { 1147 print_offs("6n", 0); 1148 return 1; 1149 } 1150 1151 static void 1152 post_dl(DECL_ARGS) 1153 { 1154 print_line(".RE", MMAN_nl); 1155 1156 /* Maybe we are inside an enclosing list? */ 1157 if (roff_node_next(n->parent) != NULL) 1158 mid_it(); 1159 } 1160 1161 static int 1162 pre_em(DECL_ARGS) 1163 { 1164 1165 font_push('I'); 1166 return 1; 1167 } 1168 1169 static int 1170 pre_en(DECL_ARGS) 1171 { 1172 1173 if (NULL == n->norm->Es || 1174 NULL == n->norm->Es->child) 1175 return 1; 1176 1177 print_word(n->norm->Es->child->string); 1178 outflags &= ~MMAN_spc; 1179 return 1; 1180 } 1181 1182 static void 1183 post_en(DECL_ARGS) 1184 { 1185 1186 if (NULL == n->norm->Es || 1187 NULL == n->norm->Es->child || 1188 NULL == n->norm->Es->child->next) 1189 return; 1190 1191 outflags &= ~MMAN_spc; 1192 print_word(n->norm->Es->child->next->string); 1193 return; 1194 } 1195 1196 static int 1197 pre_eo(DECL_ARGS) 1198 { 1199 1200 if (n->end == ENDBODY_NOT && 1201 n->parent->head->child == NULL && 1202 n->child != NULL && 1203 n->child->end != ENDBODY_NOT) 1204 print_word("\\&"); 1205 else if (n->end != ENDBODY_NOT ? n->child != NULL : 1206 n->parent->head->child != NULL && (n->child != NULL || 1207 (n->parent->tail != NULL && n->parent->tail->child != NULL))) 1208 outflags &= ~(MMAN_spc | MMAN_nl); 1209 return 1; 1210 } 1211 1212 static void 1213 post_eo(DECL_ARGS) 1214 { 1215 int body, tail; 1216 1217 if (n->end != ENDBODY_NOT) { 1218 outflags |= MMAN_spc; 1219 return; 1220 } 1221 1222 body = n->child != NULL || n->parent->head->child != NULL; 1223 tail = n->parent->tail != NULL && n->parent->tail->child != NULL; 1224 1225 if (body && tail) 1226 outflags &= ~MMAN_spc; 1227 else if ( ! (body || tail)) 1228 print_word("\\&"); 1229 else if ( ! tail) 1230 outflags |= MMAN_spc; 1231 } 1232 1233 static int 1234 pre_fa(DECL_ARGS) 1235 { 1236 int am_Fa; 1237 1238 am_Fa = MDOC_Fa == n->tok; 1239 1240 if (am_Fa) 1241 n = n->child; 1242 1243 while (NULL != n) { 1244 font_push('I'); 1245 if (am_Fa || NODE_SYNPRETTY & n->flags) 1246 outflags |= MMAN_nbrword; 1247 print_node(meta, n); 1248 font_pop(); 1249 if (NULL != (n = n->next)) 1250 print_word(","); 1251 } 1252 return 0; 1253 } 1254 1255 static void 1256 post_fa(DECL_ARGS) 1257 { 1258 struct roff_node *nn; 1259 1260 if ((nn = roff_node_next(n)) != NULL && nn->tok == MDOC_Fa) 1261 print_word(","); 1262 } 1263 1264 static int 1265 pre_fd(DECL_ARGS) 1266 { 1267 pre_syn(n); 1268 font_push('B'); 1269 return 1; 1270 } 1271 1272 static void 1273 post_fd(DECL_ARGS) 1274 { 1275 font_pop(); 1276 outflags |= MMAN_br; 1277 } 1278 1279 static int 1280 pre_fl(DECL_ARGS) 1281 { 1282 font_push('B'); 1283 print_word("\\-"); 1284 if (n->child != NULL) 1285 outflags &= ~MMAN_spc; 1286 return 1; 1287 } 1288 1289 static void 1290 post_fl(DECL_ARGS) 1291 { 1292 struct roff_node *nn; 1293 1294 font_pop(); 1295 if (n->child == NULL && 1296 ((nn = roff_node_next(n)) != NULL && 1297 nn->type != ROFFT_TEXT && 1298 (nn->flags & NODE_LINE) == 0)) 1299 outflags &= ~MMAN_spc; 1300 } 1301 1302 static int 1303 pre_fn(DECL_ARGS) 1304 { 1305 1306 pre_syn(n); 1307 1308 n = n->child; 1309 if (NULL == n) 1310 return 0; 1311 1312 if (NODE_SYNPRETTY & n->flags) 1313 print_block(".HP 4n", MMAN_nl); 1314 1315 font_push('B'); 1316 print_node(meta, n); 1317 font_pop(); 1318 outflags &= ~MMAN_spc; 1319 print_word("("); 1320 outflags &= ~MMAN_spc; 1321 1322 n = n->next; 1323 if (NULL != n) 1324 pre_fa(meta, n); 1325 return 0; 1326 } 1327 1328 static void 1329 post_fn(DECL_ARGS) 1330 { 1331 1332 print_word(")"); 1333 if (NODE_SYNPRETTY & n->flags) { 1334 print_word(";"); 1335 outflags |= MMAN_PP; 1336 } 1337 } 1338 1339 static int 1340 pre_fo(DECL_ARGS) 1341 { 1342 1343 switch (n->type) { 1344 case ROFFT_BLOCK: 1345 pre_syn(n); 1346 break; 1347 case ROFFT_HEAD: 1348 if (n->child == NULL) 1349 return 0; 1350 if (NODE_SYNPRETTY & n->flags) 1351 print_block(".HP 4n", MMAN_nl); 1352 font_push('B'); 1353 break; 1354 case ROFFT_BODY: 1355 outflags &= ~(MMAN_spc | MMAN_nl); 1356 print_word("("); 1357 outflags &= ~MMAN_spc; 1358 break; 1359 default: 1360 break; 1361 } 1362 return 1; 1363 } 1364 1365 static void 1366 post_fo(DECL_ARGS) 1367 { 1368 1369 switch (n->type) { 1370 case ROFFT_HEAD: 1371 if (n->child != NULL) 1372 font_pop(); 1373 break; 1374 case ROFFT_BODY: 1375 post_fn(meta, n); 1376 break; 1377 default: 1378 break; 1379 } 1380 } 1381 1382 static int 1383 pre_Ft(DECL_ARGS) 1384 { 1385 1386 pre_syn(n); 1387 font_push('I'); 1388 return 1; 1389 } 1390 1391 static void 1392 pre_ft(DECL_ARGS) 1393 { 1394 print_line(".ft", 0); 1395 print_word(n->child->string); 1396 outflags |= MMAN_nl; 1397 } 1398 1399 static int 1400 pre_in(DECL_ARGS) 1401 { 1402 1403 if (NODE_SYNPRETTY & n->flags) { 1404 pre_syn(n); 1405 font_push('B'); 1406 print_word("#include <"); 1407 outflags &= ~MMAN_spc; 1408 } else { 1409 print_word("<"); 1410 outflags &= ~MMAN_spc; 1411 font_push('I'); 1412 } 1413 return 1; 1414 } 1415 1416 static void 1417 post_in(DECL_ARGS) 1418 { 1419 1420 if (NODE_SYNPRETTY & n->flags) { 1421 outflags &= ~MMAN_spc; 1422 print_word(">"); 1423 font_pop(); 1424 outflags |= MMAN_br; 1425 } else { 1426 font_pop(); 1427 outflags &= ~MMAN_spc; 1428 print_word(">"); 1429 } 1430 } 1431 1432 static int 1433 pre_it(DECL_ARGS) 1434 { 1435 const struct roff_node *bln; 1436 1437 switch (n->type) { 1438 case ROFFT_HEAD: 1439 outflags |= MMAN_PP | MMAN_nl; 1440 bln = n->parent->parent; 1441 if (bln->norm->Bl.comp == 0 || 1442 (n->parent->prev == NULL && 1443 roff_node_prev(bln->parent) == NULL)) 1444 outflags |= MMAN_sp; 1445 outflags &= ~MMAN_br; 1446 switch (bln->norm->Bl.type) { 1447 case LIST_item: 1448 return 0; 1449 case LIST_inset: 1450 case LIST_diag: 1451 case LIST_ohang: 1452 if (bln->norm->Bl.type == LIST_diag) 1453 print_line(".B \"", 0); 1454 else 1455 print_line(".BR \\& \"", 0); 1456 outflags &= ~MMAN_spc; 1457 return 1; 1458 case LIST_bullet: 1459 case LIST_dash: 1460 case LIST_hyphen: 1461 print_width(&bln->norm->Bl, NULL); 1462 TPremain = 0; 1463 outflags |= MMAN_nl; 1464 font_push('B'); 1465 if (LIST_bullet == bln->norm->Bl.type) 1466 print_word("\\(bu"); 1467 else 1468 print_word("-"); 1469 font_pop(); 1470 outflags |= MMAN_nl; 1471 return 0; 1472 case LIST_enum: 1473 print_width(&bln->norm->Bl, NULL); 1474 TPremain = 0; 1475 outflags |= MMAN_nl; 1476 print_count(&bln->norm->Bl.count); 1477 outflags |= MMAN_nl; 1478 return 0; 1479 case LIST_hang: 1480 print_width(&bln->norm->Bl, n->child); 1481 TPremain = 0; 1482 outflags |= MMAN_nl; 1483 return 1; 1484 case LIST_tag: 1485 print_width(&bln->norm->Bl, n->child); 1486 putchar('\n'); 1487 outflags &= ~MMAN_spc; 1488 return 1; 1489 default: 1490 return 1; 1491 } 1492 default: 1493 break; 1494 } 1495 return 1; 1496 } 1497 1498 /* 1499 * This function is called after closing out an indented block. 1500 * If we are inside an enclosing list, restore its indentation. 1501 */ 1502 static void 1503 mid_it(void) 1504 { 1505 char buf[24]; 1506 1507 /* Nothing to do outside a list. */ 1508 if (0 == Bl_stack_len || 0 == Bl_stack[Bl_stack_len - 1]) 1509 return; 1510 1511 /* The indentation has already been set up. */ 1512 if (Bl_stack_post[Bl_stack_len - 1]) 1513 return; 1514 1515 /* Restore the indentation of the enclosing list. */ 1516 print_line(".RS", MMAN_Bk_susp); 1517 (void)snprintf(buf, sizeof(buf), "%dn", 1518 Bl_stack[Bl_stack_len - 1]); 1519 print_word(buf); 1520 1521 /* Remeber to close out this .RS block later. */ 1522 Bl_stack_post[Bl_stack_len - 1] = 1; 1523 } 1524 1525 static void 1526 post_it(DECL_ARGS) 1527 { 1528 const struct roff_node *bln; 1529 1530 bln = n->parent->parent; 1531 1532 switch (n->type) { 1533 case ROFFT_HEAD: 1534 switch (bln->norm->Bl.type) { 1535 case LIST_diag: 1536 outflags &= ~MMAN_spc; 1537 print_word("\\ "); 1538 break; 1539 case LIST_ohang: 1540 outflags |= MMAN_br; 1541 break; 1542 default: 1543 break; 1544 } 1545 break; 1546 case ROFFT_BODY: 1547 switch (bln->norm->Bl.type) { 1548 case LIST_bullet: 1549 case LIST_dash: 1550 case LIST_hyphen: 1551 case LIST_enum: 1552 case LIST_hang: 1553 case LIST_tag: 1554 assert(Bl_stack_len); 1555 Bl_stack[--Bl_stack_len] = 0; 1556 1557 /* 1558 * Our indentation had to be restored 1559 * after a child display or child list. 1560 * Close out that indentation block now. 1561 */ 1562 if (Bl_stack_post[Bl_stack_len]) { 1563 print_line(".RE", MMAN_nl); 1564 Bl_stack_post[Bl_stack_len] = 0; 1565 } 1566 break; 1567 case LIST_column: 1568 if (NULL != n->next) { 1569 putchar('\t'); 1570 outflags &= ~MMAN_spc; 1571 } 1572 break; 1573 default: 1574 break; 1575 } 1576 break; 1577 default: 1578 break; 1579 } 1580 } 1581 1582 static void 1583 post_lb(DECL_ARGS) 1584 { 1585 1586 if (SEC_LIBRARY == n->sec) 1587 outflags |= MMAN_br; 1588 } 1589 1590 static int 1591 pre_lk(DECL_ARGS) 1592 { 1593 const struct roff_node *link, *descr, *punct; 1594 1595 if ((link = n->child) == NULL) 1596 return 0; 1597 1598 /* Find beginning of trailing punctuation. */ 1599 punct = n->last; 1600 while (punct != link && punct->flags & NODE_DELIMC) 1601 punct = punct->prev; 1602 punct = punct->next; 1603 1604 /* Link text. */ 1605 if ((descr = link->next) != NULL && descr != punct) { 1606 font_push('I'); 1607 while (descr != punct) { 1608 print_word(descr->string); 1609 descr = descr->next; 1610 } 1611 font_pop(); 1612 print_word(":"); 1613 } 1614 1615 /* Link target. */ 1616 font_push('B'); 1617 print_word(link->string); 1618 font_pop(); 1619 1620 /* Trailing punctuation. */ 1621 while (punct != NULL) { 1622 print_word(punct->string); 1623 punct = punct->next; 1624 } 1625 return 0; 1626 } 1627 1628 static void 1629 pre_onearg(DECL_ARGS) 1630 { 1631 outflags |= MMAN_nl; 1632 print_word("."); 1633 outflags &= ~MMAN_spc; 1634 print_word(roff_name[n->tok]); 1635 if (n->child != NULL) 1636 print_word(n->child->string); 1637 outflags |= MMAN_nl; 1638 if (n->tok == ROFF_ce) 1639 for (n = n->child->next; n != NULL; n = n->next) 1640 print_node(meta, n); 1641 } 1642 1643 static int 1644 pre_li(DECL_ARGS) 1645 { 1646 font_push('R'); 1647 return 1; 1648 } 1649 1650 static int 1651 pre_nm(DECL_ARGS) 1652 { 1653 char *name; 1654 1655 switch (n->type) { 1656 case ROFFT_BLOCK: 1657 outflags |= MMAN_Bk; 1658 pre_syn(n); 1659 return 1; 1660 case ROFFT_HEAD: 1661 case ROFFT_ELEM: 1662 break; 1663 default: 1664 return 1; 1665 } 1666 name = n->child == NULL ? NULL : n->child->string; 1667 if (name == NULL) 1668 return 0; 1669 if (n->type == ROFFT_HEAD) { 1670 if (roff_node_prev(n->parent) == NULL) 1671 outflags |= MMAN_sp; 1672 print_block(".HP", 0); 1673 printf(" %dn", man_strlen(name) + 1); 1674 outflags |= MMAN_nl; 1675 } 1676 font_push('B'); 1677 return 1; 1678 } 1679 1680 static void 1681 post_nm(DECL_ARGS) 1682 { 1683 switch (n->type) { 1684 case ROFFT_BLOCK: 1685 outflags &= ~MMAN_Bk; 1686 break; 1687 case ROFFT_HEAD: 1688 case ROFFT_ELEM: 1689 if (n->child != NULL && n->child->string != NULL) 1690 font_pop(); 1691 break; 1692 default: 1693 break; 1694 } 1695 } 1696 1697 static int 1698 pre_no(DECL_ARGS) 1699 { 1700 outflags |= MMAN_spc_force; 1701 return 1; 1702 } 1703 1704 static void 1705 pre_noarg(DECL_ARGS) 1706 { 1707 outflags |= MMAN_nl; 1708 print_word("."); 1709 outflags &= ~MMAN_spc; 1710 print_word(roff_name[n->tok]); 1711 outflags |= MMAN_nl; 1712 } 1713 1714 static int 1715 pre_ns(DECL_ARGS) 1716 { 1717 outflags &= ~MMAN_spc; 1718 return 0; 1719 } 1720 1721 static void 1722 post_pf(DECL_ARGS) 1723 { 1724 1725 if ( ! (n->next == NULL || n->next->flags & NODE_LINE)) 1726 outflags &= ~MMAN_spc; 1727 } 1728 1729 static int 1730 pre_pp(DECL_ARGS) 1731 { 1732 1733 if (MDOC_It != n->parent->tok) 1734 outflags |= MMAN_PP; 1735 outflags |= MMAN_sp | MMAN_nl; 1736 outflags &= ~MMAN_br; 1737 return 0; 1738 } 1739 1740 static int 1741 pre_rs(DECL_ARGS) 1742 { 1743 1744 if (SEC_SEE_ALSO == n->sec) { 1745 outflags |= MMAN_PP | MMAN_sp | MMAN_nl; 1746 outflags &= ~MMAN_br; 1747 } 1748 return 1; 1749 } 1750 1751 static int 1752 pre_skip(DECL_ARGS) 1753 { 1754 1755 return 0; 1756 } 1757 1758 static int 1759 pre_sm(DECL_ARGS) 1760 { 1761 1762 if (NULL == n->child) 1763 outflags ^= MMAN_Sm; 1764 else if (0 == strcmp("on", n->child->string)) 1765 outflags |= MMAN_Sm; 1766 else 1767 outflags &= ~MMAN_Sm; 1768 1769 if (MMAN_Sm & outflags) 1770 outflags |= MMAN_spc; 1771 1772 return 0; 1773 } 1774 1775 static void 1776 pre_sp(DECL_ARGS) 1777 { 1778 if (outflags & MMAN_PP) { 1779 outflags &= ~MMAN_PP; 1780 print_line(".PP", 0); 1781 } else { 1782 print_line(".sp", 0); 1783 if (n->child != NULL) 1784 print_word(n->child->string); 1785 } 1786 outflags |= MMAN_nl; 1787 } 1788 1789 static int 1790 pre_sy(DECL_ARGS) 1791 { 1792 1793 font_push('B'); 1794 return 1; 1795 } 1796 1797 static void 1798 pre_ta(DECL_ARGS) 1799 { 1800 print_line(".ta", 0); 1801 for (n = n->child; n != NULL; n = n->next) 1802 print_word(n->string); 1803 outflags |= MMAN_nl; 1804 } 1805 1806 static int 1807 pre_vt(DECL_ARGS) 1808 { 1809 1810 if (NODE_SYNPRETTY & n->flags) { 1811 switch (n->type) { 1812 case ROFFT_BLOCK: 1813 pre_syn(n); 1814 return 1; 1815 case ROFFT_BODY: 1816 break; 1817 default: 1818 return 0; 1819 } 1820 } 1821 font_push('I'); 1822 return 1; 1823 } 1824 1825 static void 1826 post_vt(DECL_ARGS) 1827 { 1828 1829 if (n->flags & NODE_SYNPRETTY && n->type != ROFFT_BODY) 1830 return; 1831 font_pop(); 1832 } 1833 1834 static int 1835 pre_xr(DECL_ARGS) 1836 { 1837 1838 n = n->child; 1839 if (NULL == n) 1840 return 0; 1841 print_node(meta, n); 1842 n = n->next; 1843 if (NULL == n) 1844 return 0; 1845 outflags &= ~MMAN_spc; 1846 print_word("("); 1847 print_node(meta, n); 1848 print_word(")"); 1849 return 0; 1850 } 1851