1 /* $Id: mdoc_man.c,v 1.132 2019/01/04 03:17:36 schwarze Exp $ */ 2 /* 3 * Copyright (c) 2011-2019 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(const 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 }; 266 static const struct mdoc_man_act *mdoc_man_act(enum roff_tok); 267 268 static int outflags; 269 #define MMAN_spc (1 << 0) /* blank character before next word */ 270 #define MMAN_spc_force (1 << 1) /* even before trailing punctuation */ 271 #define MMAN_nl (1 << 2) /* break man(7) code line */ 272 #define MMAN_br (1 << 3) /* break output line */ 273 #define MMAN_sp (1 << 4) /* insert a blank output line */ 274 #define MMAN_PP (1 << 5) /* reset indentation etc. */ 275 #define MMAN_Sm (1 << 6) /* horizontal spacing mode */ 276 #define MMAN_Bk (1 << 7) /* word keep mode */ 277 #define MMAN_Bk_susp (1 << 8) /* suspend this (after a macro) */ 278 #define MMAN_An_split (1 << 9) /* author mode is "split" */ 279 #define MMAN_An_nosplit (1 << 10) /* author mode is "nosplit" */ 280 #define MMAN_PD (1 << 11) /* inter-paragraph spacing disabled */ 281 #define MMAN_nbrword (1 << 12) /* do not break the next word */ 282 283 #define BL_STACK_MAX 32 284 285 static int Bl_stack[BL_STACK_MAX]; /* offsets [chars] */ 286 static int Bl_stack_post[BL_STACK_MAX]; /* add final .RE */ 287 static int Bl_stack_len; /* number of nested Bl blocks */ 288 static int TPremain; /* characters before tag is full */ 289 290 static struct { 291 char *head; 292 char *tail; 293 size_t size; 294 } fontqueue; 295 296 297 static const struct mdoc_man_act * 298 mdoc_man_act(enum roff_tok tok) 299 { 300 assert(tok >= MDOC_Dd && tok <= MDOC_MAX); 301 return mdoc_man_acts + (tok - MDOC_Dd); 302 } 303 304 static int 305 man_strlen(const char *cp) 306 { 307 size_t rsz; 308 int skip, sz; 309 310 sz = 0; 311 skip = 0; 312 for (;;) { 313 rsz = strcspn(cp, "\\"); 314 if (rsz) { 315 cp += rsz; 316 if (skip) { 317 skip = 0; 318 rsz--; 319 } 320 sz += rsz; 321 } 322 if ('\0' == *cp) 323 break; 324 cp++; 325 switch (mandoc_escape(&cp, NULL, NULL)) { 326 case ESCAPE_ERROR: 327 return sz; 328 case ESCAPE_UNICODE: 329 case ESCAPE_NUMBERED: 330 case ESCAPE_SPECIAL: 331 case ESCAPE_UNDEF: 332 case ESCAPE_OVERSTRIKE: 333 if (skip) 334 skip = 0; 335 else 336 sz++; 337 break; 338 case ESCAPE_SKIPCHAR: 339 skip = 1; 340 break; 341 default: 342 break; 343 } 344 } 345 return sz; 346 } 347 348 static void 349 font_push(char newfont) 350 { 351 352 if (fontqueue.head + fontqueue.size <= ++fontqueue.tail) { 353 fontqueue.size += 8; 354 fontqueue.head = mandoc_realloc(fontqueue.head, 355 fontqueue.size); 356 } 357 *fontqueue.tail = newfont; 358 print_word(""); 359 printf("\\f"); 360 putchar(newfont); 361 outflags &= ~MMAN_spc; 362 } 363 364 static void 365 font_pop(void) 366 { 367 368 if (fontqueue.tail > fontqueue.head) 369 fontqueue.tail--; 370 outflags &= ~MMAN_spc; 371 print_word(""); 372 printf("\\f"); 373 putchar(*fontqueue.tail); 374 } 375 376 static void 377 print_word(const char *s) 378 { 379 380 if ((MMAN_PP | MMAN_sp | MMAN_br | MMAN_nl) & outflags) { 381 /* 382 * If we need a newline, print it now and start afresh. 383 */ 384 if (MMAN_PP & outflags) { 385 if (MMAN_sp & outflags) { 386 if (MMAN_PD & outflags) { 387 printf("\n.PD"); 388 outflags &= ~MMAN_PD; 389 } 390 } else if ( ! (MMAN_PD & outflags)) { 391 printf("\n.PD 0"); 392 outflags |= MMAN_PD; 393 } 394 printf("\n.PP\n"); 395 } else if (MMAN_sp & outflags) 396 printf("\n.sp\n"); 397 else if (MMAN_br & outflags) 398 printf("\n.br\n"); 399 else if (MMAN_nl & outflags) 400 putchar('\n'); 401 outflags &= ~(MMAN_PP|MMAN_sp|MMAN_br|MMAN_nl|MMAN_spc); 402 if (1 == TPremain) 403 printf(".br\n"); 404 TPremain = 0; 405 } else if (MMAN_spc & outflags) { 406 /* 407 * If we need a space, only print it if 408 * (1) it is forced by `No' or 409 * (2) what follows is not terminating punctuation or 410 * (3) what follows is longer than one character. 411 */ 412 if (MMAN_spc_force & outflags || '\0' == s[0] || 413 NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1]) { 414 if (MMAN_Bk & outflags && 415 ! (MMAN_Bk_susp & outflags)) 416 putchar('\\'); 417 putchar(' '); 418 if (TPremain) 419 TPremain--; 420 } 421 } 422 423 /* 424 * Reassign needing space if we're not following opening 425 * punctuation. 426 */ 427 if (MMAN_Sm & outflags && ('\0' == s[0] || 428 (('(' != s[0] && '[' != s[0]) || '\0' != s[1]))) 429 outflags |= MMAN_spc; 430 else 431 outflags &= ~MMAN_spc; 432 outflags &= ~(MMAN_spc_force | MMAN_Bk_susp); 433 434 for ( ; *s; s++) { 435 switch (*s) { 436 case ASCII_NBRSP: 437 printf("\\ "); 438 break; 439 case ASCII_HYPH: 440 putchar('-'); 441 break; 442 case ASCII_BREAK: 443 printf("\\:"); 444 break; 445 case ' ': 446 if (MMAN_nbrword & outflags) { 447 printf("\\ "); 448 break; 449 } 450 /* FALLTHROUGH */ 451 default: 452 putchar((unsigned char)*s); 453 break; 454 } 455 if (TPremain) 456 TPremain--; 457 } 458 outflags &= ~MMAN_nbrword; 459 } 460 461 static void 462 print_line(const char *s, int newflags) 463 { 464 465 outflags |= MMAN_nl; 466 print_word(s); 467 outflags |= newflags; 468 } 469 470 static void 471 print_block(const char *s, int newflags) 472 { 473 474 outflags &= ~MMAN_PP; 475 if (MMAN_sp & outflags) { 476 outflags &= ~(MMAN_sp | MMAN_br); 477 if (MMAN_PD & outflags) { 478 print_line(".PD", 0); 479 outflags &= ~MMAN_PD; 480 } 481 } else if (! (MMAN_PD & outflags)) 482 print_line(".PD 0", MMAN_PD); 483 outflags |= MMAN_nl; 484 print_word(s); 485 outflags |= MMAN_Bk_susp | newflags; 486 } 487 488 static void 489 print_offs(const char *v, int keywords) 490 { 491 char buf[24]; 492 struct roffsu su; 493 const char *end; 494 int sz; 495 496 print_line(".RS", MMAN_Bk_susp); 497 498 /* Convert v into a number (of characters). */ 499 if (NULL == v || '\0' == *v || (keywords && !strcmp(v, "left"))) 500 sz = 0; 501 else if (keywords && !strcmp(v, "indent")) 502 sz = 6; 503 else if (keywords && !strcmp(v, "indent-two")) 504 sz = 12; 505 else { 506 end = a2roffsu(v, &su, SCALE_EN); 507 if (end == NULL || *end != '\0') 508 sz = man_strlen(v); 509 else if (SCALE_EN == su.unit) 510 sz = su.scale; 511 else { 512 /* 513 * XXX 514 * If we are inside an enclosing list, 515 * there is no easy way to add the two 516 * indentations because they are provided 517 * in terms of different units. 518 */ 519 print_word(v); 520 outflags |= MMAN_nl; 521 return; 522 } 523 } 524 525 /* 526 * We are inside an enclosing list. 527 * Add the two indentations. 528 */ 529 if (Bl_stack_len) 530 sz += Bl_stack[Bl_stack_len - 1]; 531 532 (void)snprintf(buf, sizeof(buf), "%dn", sz); 533 print_word(buf); 534 outflags |= MMAN_nl; 535 } 536 537 /* 538 * Set up the indentation for a list item; used from pre_it(). 539 */ 540 static void 541 print_width(const struct mdoc_bl *bl, const struct roff_node *child) 542 { 543 char buf[24]; 544 struct roffsu su; 545 const char *end; 546 int numeric, remain, sz, chsz; 547 548 numeric = 1; 549 remain = 0; 550 551 /* Convert the width into a number (of characters). */ 552 if (bl->width == NULL) 553 sz = (bl->type == LIST_hang) ? 6 : 0; 554 else { 555 end = a2roffsu(bl->width, &su, SCALE_MAX); 556 if (end == NULL || *end != '\0') 557 sz = man_strlen(bl->width); 558 else if (SCALE_EN == su.unit) 559 sz = su.scale; 560 else { 561 sz = 0; 562 numeric = 0; 563 } 564 } 565 566 /* XXX Rough estimation, might have multiple parts. */ 567 if (bl->type == LIST_enum) 568 chsz = (bl->count > 8) + 1; 569 else if (child != NULL && child->type == ROFFT_TEXT) 570 chsz = man_strlen(child->string); 571 else 572 chsz = 0; 573 574 /* Maybe we are inside an enclosing list? */ 575 mid_it(); 576 577 /* 578 * Save our own indentation, 579 * such that child lists can use it. 580 */ 581 Bl_stack[Bl_stack_len++] = sz + 2; 582 583 /* Set up the current list. */ 584 if (chsz > sz && bl->type != LIST_tag) 585 print_block(".HP", 0); 586 else { 587 print_block(".TP", 0); 588 remain = sz + 2; 589 } 590 if (numeric) { 591 (void)snprintf(buf, sizeof(buf), "%dn", sz + 2); 592 print_word(buf); 593 } else 594 print_word(bl->width); 595 TPremain = remain; 596 } 597 598 static void 599 print_count(int *count) 600 { 601 char buf[24]; 602 603 (void)snprintf(buf, sizeof(buf), "%d.\\&", ++*count); 604 print_word(buf); 605 } 606 607 void 608 man_mdoc(void *arg, const struct roff_meta *mdoc) 609 { 610 struct roff_node *n; 611 612 printf(".\\\" Automatically generated from an mdoc input file." 613 " Do not edit.\n"); 614 for (n = mdoc->first->child; n != NULL; n = n->next) { 615 if (n->type != ROFFT_COMMENT) 616 break; 617 printf(".\\\"%s\n", n->string); 618 } 619 620 printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"\n", 621 mdoc->title, (mdoc->msec == NULL ? "" : mdoc->msec), 622 mdoc->date, mdoc->os, mdoc->vol); 623 624 /* Disable hyphenation and if nroff, disable justification. */ 625 printf(".nh\n.if n .ad l"); 626 627 outflags = MMAN_nl | MMAN_Sm; 628 if (0 == fontqueue.size) { 629 fontqueue.size = 8; 630 fontqueue.head = fontqueue.tail = mandoc_malloc(8); 631 *fontqueue.tail = 'R'; 632 } 633 for (; n != NULL; n = n->next) 634 print_node(mdoc, n); 635 putchar('\n'); 636 } 637 638 static void 639 print_node(DECL_ARGS) 640 { 641 const struct mdoc_man_act *act; 642 struct roff_node *sub; 643 int cond, do_sub; 644 645 if (n->flags & NODE_NOPRT) 646 return; 647 648 /* 649 * Break the line if we were parsed subsequent the current node. 650 * This makes the page structure be more consistent. 651 */ 652 if (MMAN_spc & outflags && NODE_LINE & n->flags) 653 outflags |= MMAN_nl; 654 655 act = NULL; 656 cond = 0; 657 do_sub = 1; 658 n->flags &= ~NODE_ENDED; 659 660 if (n->type == ROFFT_TEXT) { 661 /* 662 * Make sure that we don't happen to start with a 663 * control character at the start of a line. 664 */ 665 if (MMAN_nl & outflags && 666 ('.' == *n->string || '\'' == *n->string)) { 667 print_word(""); 668 printf("\\&"); 669 outflags &= ~MMAN_spc; 670 } 671 if (n->flags & NODE_DELIMC) 672 outflags &= ~(MMAN_spc | MMAN_spc_force); 673 else if (outflags & MMAN_Sm) 674 outflags |= MMAN_spc_force; 675 print_word(n->string); 676 if (n->flags & NODE_DELIMO) 677 outflags &= ~(MMAN_spc | MMAN_spc_force); 678 else if (outflags & MMAN_Sm) 679 outflags |= MMAN_spc; 680 } else if (n->tok < ROFF_MAX) { 681 (*roff_man_acts[n->tok])(meta, n); 682 return; 683 } else { 684 /* 685 * Conditionally run the pre-node action handler for a 686 * node. 687 */ 688 act = mdoc_man_act(n->tok); 689 cond = act->cond == NULL || (*act->cond)(meta, n); 690 if (cond && act->pre != NULL && 691 (n->end == ENDBODY_NOT || n->child != NULL)) 692 do_sub = (*act->pre)(meta, n); 693 } 694 695 /* 696 * Conditionally run all child nodes. 697 * Note that this iterates over children instead of using 698 * recursion. This prevents unnecessary depth in the stack. 699 */ 700 if (do_sub) 701 for (sub = n->child; sub; sub = sub->next) 702 print_node(meta, sub); 703 704 /* 705 * Lastly, conditionally run the post-node handler. 706 */ 707 if (NODE_ENDED & n->flags) 708 return; 709 710 if (cond && act->post) 711 (*act->post)(meta, n); 712 713 if (ENDBODY_NOT != n->end) 714 n->body->flags |= NODE_ENDED; 715 } 716 717 static int 718 cond_head(DECL_ARGS) 719 { 720 721 return n->type == ROFFT_HEAD; 722 } 723 724 static int 725 cond_body(DECL_ARGS) 726 { 727 728 return n->type == ROFFT_BODY; 729 } 730 731 static int 732 pre_abort(DECL_ARGS) 733 { 734 abort(); 735 } 736 737 static int 738 pre_enc(DECL_ARGS) 739 { 740 const char *prefix; 741 742 prefix = mdoc_man_act(n->tok)->prefix; 743 if (NULL == prefix) 744 return 1; 745 print_word(prefix); 746 outflags &= ~MMAN_spc; 747 return 1; 748 } 749 750 static void 751 post_enc(DECL_ARGS) 752 { 753 const char *suffix; 754 755 suffix = mdoc_man_act(n->tok)->suffix; 756 if (NULL == suffix) 757 return; 758 outflags &= ~(MMAN_spc | MMAN_nl); 759 print_word(suffix); 760 } 761 762 static int 763 pre_ex(DECL_ARGS) 764 { 765 outflags |= MMAN_br | MMAN_nl; 766 return 1; 767 } 768 769 static void 770 post_font(DECL_ARGS) 771 { 772 773 font_pop(); 774 } 775 776 static void 777 post_percent(DECL_ARGS) 778 { 779 780 if (mdoc_man_act(n->tok)->pre == pre_em) 781 font_pop(); 782 if (n->next) { 783 print_word(","); 784 if (n->prev && n->prev->tok == n->tok && 785 n->next->tok == n->tok) 786 print_word("and"); 787 } else { 788 print_word("."); 789 outflags |= MMAN_nl; 790 } 791 } 792 793 static int 794 pre__t(DECL_ARGS) 795 { 796 797 if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T) { 798 print_word("\\(lq"); 799 outflags &= ~MMAN_spc; 800 } else 801 font_push('I'); 802 return 1; 803 } 804 805 static void 806 post__t(DECL_ARGS) 807 { 808 809 if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T) { 810 outflags &= ~MMAN_spc; 811 print_word("\\(rq"); 812 } else 813 font_pop(); 814 post_percent(meta, n); 815 } 816 817 /* 818 * Print before a section header. 819 */ 820 static int 821 pre_sect(DECL_ARGS) 822 { 823 824 if (n->type == ROFFT_HEAD) { 825 outflags |= MMAN_sp; 826 print_block(mdoc_man_act(n->tok)->prefix, 0); 827 print_word(""); 828 putchar('\"'); 829 outflags &= ~MMAN_spc; 830 } 831 return 1; 832 } 833 834 /* 835 * Print subsequent a section header. 836 */ 837 static void 838 post_sect(DECL_ARGS) 839 { 840 841 if (n->type != ROFFT_HEAD) 842 return; 843 outflags &= ~MMAN_spc; 844 print_word(""); 845 putchar('\"'); 846 outflags |= MMAN_nl; 847 if (MDOC_Sh == n->tok && SEC_AUTHORS == n->sec) 848 outflags &= ~(MMAN_An_split | MMAN_An_nosplit); 849 } 850 851 /* See mdoc_term.c, synopsis_pre() for comments. */ 852 static void 853 pre_syn(const struct roff_node *n) 854 { 855 856 if (NULL == n->prev || ! (NODE_SYNPRETTY & n->flags)) 857 return; 858 859 if (n->prev->tok == n->tok && 860 MDOC_Ft != n->tok && 861 MDOC_Fo != n->tok && 862 MDOC_Fn != n->tok) { 863 outflags |= MMAN_br; 864 return; 865 } 866 867 switch (n->prev->tok) { 868 case MDOC_Fd: 869 case MDOC_Fn: 870 case MDOC_Fo: 871 case MDOC_In: 872 case MDOC_Vt: 873 outflags |= MMAN_sp; 874 break; 875 case MDOC_Ft: 876 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) { 877 outflags |= MMAN_sp; 878 break; 879 } 880 /* FALLTHROUGH */ 881 default: 882 outflags |= MMAN_br; 883 break; 884 } 885 } 886 887 static int 888 pre_an(DECL_ARGS) 889 { 890 891 switch (n->norm->An.auth) { 892 case AUTH_split: 893 outflags &= ~MMAN_An_nosplit; 894 outflags |= MMAN_An_split; 895 return 0; 896 case AUTH_nosplit: 897 outflags &= ~MMAN_An_split; 898 outflags |= MMAN_An_nosplit; 899 return 0; 900 default: 901 if (MMAN_An_split & outflags) 902 outflags |= MMAN_br; 903 else if (SEC_AUTHORS == n->sec && 904 ! (MMAN_An_nosplit & outflags)) 905 outflags |= MMAN_An_split; 906 return 1; 907 } 908 } 909 910 static int 911 pre_ap(DECL_ARGS) 912 { 913 914 outflags &= ~MMAN_spc; 915 print_word("'"); 916 outflags &= ~MMAN_spc; 917 return 0; 918 } 919 920 static int 921 pre_aq(DECL_ARGS) 922 { 923 924 print_word(n->child != NULL && n->child->next == NULL && 925 n->child->tok == MDOC_Mt ? "<" : "\\(la"); 926 outflags &= ~MMAN_spc; 927 return 1; 928 } 929 930 static void 931 post_aq(DECL_ARGS) 932 { 933 934 outflags &= ~(MMAN_spc | MMAN_nl); 935 print_word(n->child != NULL && n->child->next == NULL && 936 n->child->tok == MDOC_Mt ? ">" : "\\(ra"); 937 } 938 939 static int 940 pre_bd(DECL_ARGS) 941 { 942 outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br); 943 944 if (DISP_unfilled == n->norm->Bd.type || 945 DISP_literal == n->norm->Bd.type) 946 print_line(".nf", 0); 947 if (0 == n->norm->Bd.comp && NULL != n->parent->prev) 948 outflags |= MMAN_sp; 949 print_offs(n->norm->Bd.offs, 1); 950 return 1; 951 } 952 953 static void 954 post_bd(DECL_ARGS) 955 { 956 enum roff_tok bef, now; 957 958 /* Close out this display. */ 959 print_line(".RE", MMAN_nl); 960 bef = n->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi; 961 if (n->last == NULL) 962 now = n->norm->Bd.type == DISP_unfilled || 963 n->norm->Bd.type == DISP_literal ? ROFF_nf : ROFF_fi; 964 else if (n->last->tok == ROFF_nf) 965 now = ROFF_nf; 966 else if (n->last->tok == ROFF_fi) 967 now = ROFF_fi; 968 else 969 now = n->last->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi; 970 if (bef != now) { 971 outflags |= MMAN_nl; 972 print_word("."); 973 outflags &= ~MMAN_spc; 974 print_word(roff_name[bef]); 975 outflags |= MMAN_nl; 976 } 977 978 /* Maybe we are inside an enclosing list? */ 979 if (NULL != n->parent->next) 980 mid_it(); 981 } 982 983 static int 984 pre_bf(DECL_ARGS) 985 { 986 987 switch (n->type) { 988 case ROFFT_BLOCK: 989 return 1; 990 case ROFFT_BODY: 991 break; 992 default: 993 return 0; 994 } 995 switch (n->norm->Bf.font) { 996 case FONT_Em: 997 font_push('I'); 998 break; 999 case FONT_Sy: 1000 font_push('B'); 1001 break; 1002 default: 1003 font_push('R'); 1004 break; 1005 } 1006 return 1; 1007 } 1008 1009 static void 1010 post_bf(DECL_ARGS) 1011 { 1012 1013 if (n->type == ROFFT_BODY) 1014 font_pop(); 1015 } 1016 1017 static int 1018 pre_bk(DECL_ARGS) 1019 { 1020 switch (n->type) { 1021 case ROFFT_BLOCK: 1022 return 1; 1023 case ROFFT_BODY: 1024 case ROFFT_ELEM: 1025 outflags |= MMAN_Bk; 1026 return 1; 1027 default: 1028 return 0; 1029 } 1030 } 1031 1032 static void 1033 post_bk(DECL_ARGS) 1034 { 1035 switch (n->type) { 1036 case ROFFT_ELEM: 1037 while ((n = n->parent) != NULL) 1038 if (n->tok == MDOC_Bk) 1039 return; 1040 /* FALLTHROUGH */ 1041 case ROFFT_BODY: 1042 outflags &= ~MMAN_Bk; 1043 break; 1044 default: 1045 break; 1046 } 1047 } 1048 1049 static int 1050 pre_bl(DECL_ARGS) 1051 { 1052 size_t icol; 1053 1054 /* 1055 * print_offs() will increase the -offset to account for 1056 * a possible enclosing .It, but any enclosed .It blocks 1057 * just nest and do not add up their indentation. 1058 */ 1059 if (n->norm->Bl.offs) { 1060 print_offs(n->norm->Bl.offs, 0); 1061 Bl_stack[Bl_stack_len++] = 0; 1062 } 1063 1064 switch (n->norm->Bl.type) { 1065 case LIST_enum: 1066 n->norm->Bl.count = 0; 1067 return 1; 1068 case LIST_column: 1069 break; 1070 default: 1071 return 1; 1072 } 1073 1074 if (n->child != NULL) { 1075 print_line(".TS", MMAN_nl); 1076 for (icol = 0; icol < n->norm->Bl.ncols; icol++) 1077 print_word("l"); 1078 print_word("."); 1079 } 1080 outflags |= MMAN_nl; 1081 return 1; 1082 } 1083 1084 static void 1085 post_bl(DECL_ARGS) 1086 { 1087 1088 switch (n->norm->Bl.type) { 1089 case LIST_column: 1090 if (n->child != NULL) 1091 print_line(".TE", 0); 1092 break; 1093 case LIST_enum: 1094 n->norm->Bl.count = 0; 1095 break; 1096 default: 1097 break; 1098 } 1099 1100 if (n->norm->Bl.offs) { 1101 print_line(".RE", MMAN_nl); 1102 assert(Bl_stack_len); 1103 Bl_stack_len--; 1104 assert(0 == Bl_stack[Bl_stack_len]); 1105 } else { 1106 outflags |= MMAN_PP | MMAN_nl; 1107 outflags &= ~(MMAN_sp | MMAN_br); 1108 } 1109 1110 /* Maybe we are inside an enclosing list? */ 1111 if (NULL != n->parent->next) 1112 mid_it(); 1113 1114 } 1115 1116 static void 1117 pre_br(DECL_ARGS) 1118 { 1119 outflags |= MMAN_br; 1120 } 1121 1122 static int 1123 pre_dl(DECL_ARGS) 1124 { 1125 1126 print_offs("6n", 0); 1127 return 1; 1128 } 1129 1130 static void 1131 post_dl(DECL_ARGS) 1132 { 1133 1134 print_line(".RE", MMAN_nl); 1135 1136 /* Maybe we are inside an enclosing list? */ 1137 if (NULL != n->parent->next) 1138 mid_it(); 1139 } 1140 1141 static int 1142 pre_em(DECL_ARGS) 1143 { 1144 1145 font_push('I'); 1146 return 1; 1147 } 1148 1149 static int 1150 pre_en(DECL_ARGS) 1151 { 1152 1153 if (NULL == n->norm->Es || 1154 NULL == n->norm->Es->child) 1155 return 1; 1156 1157 print_word(n->norm->Es->child->string); 1158 outflags &= ~MMAN_spc; 1159 return 1; 1160 } 1161 1162 static void 1163 post_en(DECL_ARGS) 1164 { 1165 1166 if (NULL == n->norm->Es || 1167 NULL == n->norm->Es->child || 1168 NULL == n->norm->Es->child->next) 1169 return; 1170 1171 outflags &= ~MMAN_spc; 1172 print_word(n->norm->Es->child->next->string); 1173 return; 1174 } 1175 1176 static int 1177 pre_eo(DECL_ARGS) 1178 { 1179 1180 if (n->end == ENDBODY_NOT && 1181 n->parent->head->child == NULL && 1182 n->child != NULL && 1183 n->child->end != ENDBODY_NOT) 1184 print_word("\\&"); 1185 else if (n->end != ENDBODY_NOT ? n->child != NULL : 1186 n->parent->head->child != NULL && (n->child != NULL || 1187 (n->parent->tail != NULL && n->parent->tail->child != NULL))) 1188 outflags &= ~(MMAN_spc | MMAN_nl); 1189 return 1; 1190 } 1191 1192 static void 1193 post_eo(DECL_ARGS) 1194 { 1195 int body, tail; 1196 1197 if (n->end != ENDBODY_NOT) { 1198 outflags |= MMAN_spc; 1199 return; 1200 } 1201 1202 body = n->child != NULL || n->parent->head->child != NULL; 1203 tail = n->parent->tail != NULL && n->parent->tail->child != NULL; 1204 1205 if (body && tail) 1206 outflags &= ~MMAN_spc; 1207 else if ( ! (body || tail)) 1208 print_word("\\&"); 1209 else if ( ! tail) 1210 outflags |= MMAN_spc; 1211 } 1212 1213 static int 1214 pre_fa(DECL_ARGS) 1215 { 1216 int am_Fa; 1217 1218 am_Fa = MDOC_Fa == n->tok; 1219 1220 if (am_Fa) 1221 n = n->child; 1222 1223 while (NULL != n) { 1224 font_push('I'); 1225 if (am_Fa || NODE_SYNPRETTY & n->flags) 1226 outflags |= MMAN_nbrword; 1227 print_node(meta, n); 1228 font_pop(); 1229 if (NULL != (n = n->next)) 1230 print_word(","); 1231 } 1232 return 0; 1233 } 1234 1235 static void 1236 post_fa(DECL_ARGS) 1237 { 1238 1239 if (NULL != n->next && MDOC_Fa == n->next->tok) 1240 print_word(","); 1241 } 1242 1243 static int 1244 pre_fd(DECL_ARGS) 1245 { 1246 1247 pre_syn(n); 1248 font_push('B'); 1249 return 1; 1250 } 1251 1252 static void 1253 post_fd(DECL_ARGS) 1254 { 1255 1256 font_pop(); 1257 outflags |= MMAN_br; 1258 } 1259 1260 static int 1261 pre_fl(DECL_ARGS) 1262 { 1263 1264 font_push('B'); 1265 print_word("\\-"); 1266 if (n->child != NULL) 1267 outflags &= ~MMAN_spc; 1268 return 1; 1269 } 1270 1271 static void 1272 post_fl(DECL_ARGS) 1273 { 1274 1275 font_pop(); 1276 if (!(n->child != NULL || 1277 n->next == NULL || 1278 n->next->type == ROFFT_TEXT || 1279 n->next->flags & NODE_LINE)) 1280 outflags &= ~MMAN_spc; 1281 } 1282 1283 static int 1284 pre_fn(DECL_ARGS) 1285 { 1286 1287 pre_syn(n); 1288 1289 n = n->child; 1290 if (NULL == n) 1291 return 0; 1292 1293 if (NODE_SYNPRETTY & n->flags) 1294 print_block(".HP 4n", MMAN_nl); 1295 1296 font_push('B'); 1297 print_node(meta, n); 1298 font_pop(); 1299 outflags &= ~MMAN_spc; 1300 print_word("("); 1301 outflags &= ~MMAN_spc; 1302 1303 n = n->next; 1304 if (NULL != n) 1305 pre_fa(meta, n); 1306 return 0; 1307 } 1308 1309 static void 1310 post_fn(DECL_ARGS) 1311 { 1312 1313 print_word(")"); 1314 if (NODE_SYNPRETTY & n->flags) { 1315 print_word(";"); 1316 outflags |= MMAN_PP; 1317 } 1318 } 1319 1320 static int 1321 pre_fo(DECL_ARGS) 1322 { 1323 1324 switch (n->type) { 1325 case ROFFT_BLOCK: 1326 pre_syn(n); 1327 break; 1328 case ROFFT_HEAD: 1329 if (n->child == NULL) 1330 return 0; 1331 if (NODE_SYNPRETTY & n->flags) 1332 print_block(".HP 4n", MMAN_nl); 1333 font_push('B'); 1334 break; 1335 case ROFFT_BODY: 1336 outflags &= ~(MMAN_spc | MMAN_nl); 1337 print_word("("); 1338 outflags &= ~MMAN_spc; 1339 break; 1340 default: 1341 break; 1342 } 1343 return 1; 1344 } 1345 1346 static void 1347 post_fo(DECL_ARGS) 1348 { 1349 1350 switch (n->type) { 1351 case ROFFT_HEAD: 1352 if (n->child != NULL) 1353 font_pop(); 1354 break; 1355 case ROFFT_BODY: 1356 post_fn(meta, n); 1357 break; 1358 default: 1359 break; 1360 } 1361 } 1362 1363 static int 1364 pre_Ft(DECL_ARGS) 1365 { 1366 1367 pre_syn(n); 1368 font_push('I'); 1369 return 1; 1370 } 1371 1372 static void 1373 pre_ft(DECL_ARGS) 1374 { 1375 print_line(".ft", 0); 1376 print_word(n->child->string); 1377 outflags |= MMAN_nl; 1378 } 1379 1380 static int 1381 pre_in(DECL_ARGS) 1382 { 1383 1384 if (NODE_SYNPRETTY & n->flags) { 1385 pre_syn(n); 1386 font_push('B'); 1387 print_word("#include <"); 1388 outflags &= ~MMAN_spc; 1389 } else { 1390 print_word("<"); 1391 outflags &= ~MMAN_spc; 1392 font_push('I'); 1393 } 1394 return 1; 1395 } 1396 1397 static void 1398 post_in(DECL_ARGS) 1399 { 1400 1401 if (NODE_SYNPRETTY & n->flags) { 1402 outflags &= ~MMAN_spc; 1403 print_word(">"); 1404 font_pop(); 1405 outflags |= MMAN_br; 1406 } else { 1407 font_pop(); 1408 outflags &= ~MMAN_spc; 1409 print_word(">"); 1410 } 1411 } 1412 1413 static int 1414 pre_it(DECL_ARGS) 1415 { 1416 const struct roff_node *bln; 1417 1418 switch (n->type) { 1419 case ROFFT_HEAD: 1420 outflags |= MMAN_PP | MMAN_nl; 1421 bln = n->parent->parent; 1422 if (0 == bln->norm->Bl.comp || 1423 (NULL == n->parent->prev && 1424 NULL == bln->parent->prev)) 1425 outflags |= MMAN_sp; 1426 outflags &= ~MMAN_br; 1427 switch (bln->norm->Bl.type) { 1428 case LIST_item: 1429 return 0; 1430 case LIST_inset: 1431 case LIST_diag: 1432 case LIST_ohang: 1433 if (bln->norm->Bl.type == LIST_diag) 1434 print_line(".B \"", 0); 1435 else 1436 print_line(".BR \\& \"", 0); 1437 outflags &= ~MMAN_spc; 1438 return 1; 1439 case LIST_bullet: 1440 case LIST_dash: 1441 case LIST_hyphen: 1442 print_width(&bln->norm->Bl, NULL); 1443 TPremain = 0; 1444 outflags |= MMAN_nl; 1445 font_push('B'); 1446 if (LIST_bullet == bln->norm->Bl.type) 1447 print_word("\\(bu"); 1448 else 1449 print_word("-"); 1450 font_pop(); 1451 outflags |= MMAN_nl; 1452 return 0; 1453 case LIST_enum: 1454 print_width(&bln->norm->Bl, NULL); 1455 TPremain = 0; 1456 outflags |= MMAN_nl; 1457 print_count(&bln->norm->Bl.count); 1458 outflags |= MMAN_nl; 1459 return 0; 1460 case LIST_hang: 1461 print_width(&bln->norm->Bl, n->child); 1462 TPremain = 0; 1463 outflags |= MMAN_nl; 1464 return 1; 1465 case LIST_tag: 1466 print_width(&bln->norm->Bl, n->child); 1467 putchar('\n'); 1468 outflags &= ~MMAN_spc; 1469 return 1; 1470 default: 1471 return 1; 1472 } 1473 default: 1474 break; 1475 } 1476 return 1; 1477 } 1478 1479 /* 1480 * This function is called after closing out an indented block. 1481 * If we are inside an enclosing list, restore its indentation. 1482 */ 1483 static void 1484 mid_it(void) 1485 { 1486 char buf[24]; 1487 1488 /* Nothing to do outside a list. */ 1489 if (0 == Bl_stack_len || 0 == Bl_stack[Bl_stack_len - 1]) 1490 return; 1491 1492 /* The indentation has already been set up. */ 1493 if (Bl_stack_post[Bl_stack_len - 1]) 1494 return; 1495 1496 /* Restore the indentation of the enclosing list. */ 1497 print_line(".RS", MMAN_Bk_susp); 1498 (void)snprintf(buf, sizeof(buf), "%dn", 1499 Bl_stack[Bl_stack_len - 1]); 1500 print_word(buf); 1501 1502 /* Remeber to close out this .RS block later. */ 1503 Bl_stack_post[Bl_stack_len - 1] = 1; 1504 } 1505 1506 static void 1507 post_it(DECL_ARGS) 1508 { 1509 const struct roff_node *bln; 1510 1511 bln = n->parent->parent; 1512 1513 switch (n->type) { 1514 case ROFFT_HEAD: 1515 switch (bln->norm->Bl.type) { 1516 case LIST_diag: 1517 outflags &= ~MMAN_spc; 1518 print_word("\\ "); 1519 break; 1520 case LIST_ohang: 1521 outflags |= MMAN_br; 1522 break; 1523 default: 1524 break; 1525 } 1526 break; 1527 case ROFFT_BODY: 1528 switch (bln->norm->Bl.type) { 1529 case LIST_bullet: 1530 case LIST_dash: 1531 case LIST_hyphen: 1532 case LIST_enum: 1533 case LIST_hang: 1534 case LIST_tag: 1535 assert(Bl_stack_len); 1536 Bl_stack[--Bl_stack_len] = 0; 1537 1538 /* 1539 * Our indentation had to be restored 1540 * after a child display or child list. 1541 * Close out that indentation block now. 1542 */ 1543 if (Bl_stack_post[Bl_stack_len]) { 1544 print_line(".RE", MMAN_nl); 1545 Bl_stack_post[Bl_stack_len] = 0; 1546 } 1547 break; 1548 case LIST_column: 1549 if (NULL != n->next) { 1550 putchar('\t'); 1551 outflags &= ~MMAN_spc; 1552 } 1553 break; 1554 default: 1555 break; 1556 } 1557 break; 1558 default: 1559 break; 1560 } 1561 } 1562 1563 static void 1564 post_lb(DECL_ARGS) 1565 { 1566 1567 if (SEC_LIBRARY == n->sec) 1568 outflags |= MMAN_br; 1569 } 1570 1571 static int 1572 pre_lk(DECL_ARGS) 1573 { 1574 const struct roff_node *link, *descr, *punct; 1575 1576 if ((link = n->child) == NULL) 1577 return 0; 1578 1579 /* Find beginning of trailing punctuation. */ 1580 punct = n->last; 1581 while (punct != link && punct->flags & NODE_DELIMC) 1582 punct = punct->prev; 1583 punct = punct->next; 1584 1585 /* Link text. */ 1586 if ((descr = link->next) != NULL && descr != punct) { 1587 font_push('I'); 1588 while (descr != punct) { 1589 print_word(descr->string); 1590 descr = descr->next; 1591 } 1592 font_pop(); 1593 print_word(":"); 1594 } 1595 1596 /* Link target. */ 1597 font_push('B'); 1598 print_word(link->string); 1599 font_pop(); 1600 1601 /* Trailing punctuation. */ 1602 while (punct != NULL) { 1603 print_word(punct->string); 1604 punct = punct->next; 1605 } 1606 return 0; 1607 } 1608 1609 static void 1610 pre_onearg(DECL_ARGS) 1611 { 1612 outflags |= MMAN_nl; 1613 print_word("."); 1614 outflags &= ~MMAN_spc; 1615 print_word(roff_name[n->tok]); 1616 if (n->child != NULL) 1617 print_word(n->child->string); 1618 outflags |= MMAN_nl; 1619 if (n->tok == ROFF_ce) 1620 for (n = n->child->next; n != NULL; n = n->next) 1621 print_node(meta, n); 1622 } 1623 1624 static int 1625 pre_li(DECL_ARGS) 1626 { 1627 font_push('R'); 1628 return 1; 1629 } 1630 1631 static int 1632 pre_nm(DECL_ARGS) 1633 { 1634 char *name; 1635 1636 if (n->type == ROFFT_BLOCK) { 1637 outflags |= MMAN_Bk; 1638 pre_syn(n); 1639 } 1640 if (n->type != ROFFT_ELEM && n->type != ROFFT_HEAD) 1641 return 1; 1642 name = n->child == NULL ? NULL : n->child->string; 1643 if (NULL == name) 1644 return 0; 1645 if (n->type == ROFFT_HEAD) { 1646 if (NULL == n->parent->prev) 1647 outflags |= MMAN_sp; 1648 print_block(".HP", 0); 1649 printf(" %dn", man_strlen(name) + 1); 1650 outflags |= MMAN_nl; 1651 } 1652 font_push('B'); 1653 return 1; 1654 } 1655 1656 static void 1657 post_nm(DECL_ARGS) 1658 { 1659 switch (n->type) { 1660 case ROFFT_BLOCK: 1661 outflags &= ~MMAN_Bk; 1662 break; 1663 case ROFFT_HEAD: 1664 case ROFFT_ELEM: 1665 if (n->child != NULL && n->child->string != NULL) 1666 font_pop(); 1667 break; 1668 default: 1669 break; 1670 } 1671 } 1672 1673 static int 1674 pre_no(DECL_ARGS) 1675 { 1676 outflags |= MMAN_spc_force; 1677 return 1; 1678 } 1679 1680 static void 1681 pre_noarg(DECL_ARGS) 1682 { 1683 outflags |= MMAN_nl; 1684 print_word("."); 1685 outflags &= ~MMAN_spc; 1686 print_word(roff_name[n->tok]); 1687 outflags |= MMAN_nl; 1688 } 1689 1690 static int 1691 pre_ns(DECL_ARGS) 1692 { 1693 outflags &= ~MMAN_spc; 1694 return 0; 1695 } 1696 1697 static void 1698 post_pf(DECL_ARGS) 1699 { 1700 1701 if ( ! (n->next == NULL || n->next->flags & NODE_LINE)) 1702 outflags &= ~MMAN_spc; 1703 } 1704 1705 static int 1706 pre_pp(DECL_ARGS) 1707 { 1708 1709 if (MDOC_It != n->parent->tok) 1710 outflags |= MMAN_PP; 1711 outflags |= MMAN_sp | MMAN_nl; 1712 outflags &= ~MMAN_br; 1713 return 0; 1714 } 1715 1716 static int 1717 pre_rs(DECL_ARGS) 1718 { 1719 1720 if (SEC_SEE_ALSO == n->sec) { 1721 outflags |= MMAN_PP | MMAN_sp | MMAN_nl; 1722 outflags &= ~MMAN_br; 1723 } 1724 return 1; 1725 } 1726 1727 static int 1728 pre_skip(DECL_ARGS) 1729 { 1730 1731 return 0; 1732 } 1733 1734 static int 1735 pre_sm(DECL_ARGS) 1736 { 1737 1738 if (NULL == n->child) 1739 outflags ^= MMAN_Sm; 1740 else if (0 == strcmp("on", n->child->string)) 1741 outflags |= MMAN_Sm; 1742 else 1743 outflags &= ~MMAN_Sm; 1744 1745 if (MMAN_Sm & outflags) 1746 outflags |= MMAN_spc; 1747 1748 return 0; 1749 } 1750 1751 static void 1752 pre_sp(DECL_ARGS) 1753 { 1754 if (outflags & MMAN_PP) { 1755 outflags &= ~MMAN_PP; 1756 print_line(".PP", 0); 1757 } else { 1758 print_line(".sp", 0); 1759 if (n->child != NULL) 1760 print_word(n->child->string); 1761 } 1762 outflags |= MMAN_nl; 1763 } 1764 1765 static int 1766 pre_sy(DECL_ARGS) 1767 { 1768 1769 font_push('B'); 1770 return 1; 1771 } 1772 1773 static void 1774 pre_ta(DECL_ARGS) 1775 { 1776 print_line(".ta", 0); 1777 for (n = n->child; n != NULL; n = n->next) 1778 print_word(n->string); 1779 outflags |= MMAN_nl; 1780 } 1781 1782 static int 1783 pre_vt(DECL_ARGS) 1784 { 1785 1786 if (NODE_SYNPRETTY & n->flags) { 1787 switch (n->type) { 1788 case ROFFT_BLOCK: 1789 pre_syn(n); 1790 return 1; 1791 case ROFFT_BODY: 1792 break; 1793 default: 1794 return 0; 1795 } 1796 } 1797 font_push('I'); 1798 return 1; 1799 } 1800 1801 static void 1802 post_vt(DECL_ARGS) 1803 { 1804 1805 if (n->flags & NODE_SYNPRETTY && n->type != ROFFT_BODY) 1806 return; 1807 font_pop(); 1808 } 1809 1810 static int 1811 pre_xr(DECL_ARGS) 1812 { 1813 1814 n = n->child; 1815 if (NULL == n) 1816 return 0; 1817 print_node(meta, n); 1818 n = n->next; 1819 if (NULL == n) 1820 return 0; 1821 outflags &= ~MMAN_spc; 1822 print_word("("); 1823 print_node(meta, n); 1824 print_word(")"); 1825 return 0; 1826 } 1827