1 /* $OpenBSD: mdoc_man.c,v 1.134 2020/02/27 01:25:57 schwarze Exp $ */ 2 /* 3 * Copyright (c) 2011-2020 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 <stdlib.h> 22 #include <string.h> 23 24 #include "mandoc_aux.h" 25 #include "mandoc.h" 26 #include "roff.h" 27 #include "mdoc.h" 28 #include "man.h" 29 #include "out.h" 30 #include "main.h" 31 32 #define DECL_ARGS const struct roff_meta *meta, struct roff_node *n 33 34 typedef int (*int_fp)(DECL_ARGS); 35 typedef void (*void_fp)(DECL_ARGS); 36 37 struct mdoc_man_act { 38 int_fp cond; /* DON'T run actions */ 39 int_fp pre; /* pre-node action */ 40 void_fp post; /* post-node action */ 41 const char *prefix; /* pre-node string constant */ 42 const char *suffix; /* post-node string constant */ 43 }; 44 45 static int cond_body(DECL_ARGS); 46 static int cond_head(DECL_ARGS); 47 static void font_push(char); 48 static void font_pop(void); 49 static int man_strlen(const char *); 50 static void mid_it(void); 51 static void post__t(DECL_ARGS); 52 static void post_aq(DECL_ARGS); 53 static void post_bd(DECL_ARGS); 54 static void post_bf(DECL_ARGS); 55 static void post_bk(DECL_ARGS); 56 static void post_bl(DECL_ARGS); 57 static void post_dl(DECL_ARGS); 58 static void post_en(DECL_ARGS); 59 static void post_enc(DECL_ARGS); 60 static void post_eo(DECL_ARGS); 61 static void post_fa(DECL_ARGS); 62 static void post_fd(DECL_ARGS); 63 static void post_fl(DECL_ARGS); 64 static void post_fn(DECL_ARGS); 65 static void post_fo(DECL_ARGS); 66 static void post_font(DECL_ARGS); 67 static void post_in(DECL_ARGS); 68 static void post_it(DECL_ARGS); 69 static void post_lb(DECL_ARGS); 70 static void post_nm(DECL_ARGS); 71 static void post_percent(DECL_ARGS); 72 static void post_pf(DECL_ARGS); 73 static void post_sect(DECL_ARGS); 74 static void post_vt(DECL_ARGS); 75 static int pre__t(DECL_ARGS); 76 static int pre_abort(DECL_ARGS); 77 static int pre_an(DECL_ARGS); 78 static int pre_ap(DECL_ARGS); 79 static int pre_aq(DECL_ARGS); 80 static int pre_bd(DECL_ARGS); 81 static int pre_bf(DECL_ARGS); 82 static int pre_bk(DECL_ARGS); 83 static int pre_bl(DECL_ARGS); 84 static void pre_br(DECL_ARGS); 85 static int pre_dl(DECL_ARGS); 86 static int pre_en(DECL_ARGS); 87 static int pre_enc(DECL_ARGS); 88 static int pre_em(DECL_ARGS); 89 static int pre_skip(DECL_ARGS); 90 static int pre_eo(DECL_ARGS); 91 static int pre_ex(DECL_ARGS); 92 static int pre_fa(DECL_ARGS); 93 static int pre_fd(DECL_ARGS); 94 static int pre_fl(DECL_ARGS); 95 static int pre_fn(DECL_ARGS); 96 static int pre_fo(DECL_ARGS); 97 static void pre_ft(DECL_ARGS); 98 static int pre_Ft(DECL_ARGS); 99 static int pre_in(DECL_ARGS); 100 static int pre_it(DECL_ARGS); 101 static int pre_lk(DECL_ARGS); 102 static int pre_li(DECL_ARGS); 103 static int pre_nm(DECL_ARGS); 104 static int pre_no(DECL_ARGS); 105 static void pre_noarg(DECL_ARGS); 106 static int pre_ns(DECL_ARGS); 107 static void pre_onearg(DECL_ARGS); 108 static int pre_pp(DECL_ARGS); 109 static int pre_rs(DECL_ARGS); 110 static int pre_sm(DECL_ARGS); 111 static void pre_sp(DECL_ARGS); 112 static int pre_sect(DECL_ARGS); 113 static int pre_sy(DECL_ARGS); 114 static void pre_syn(struct roff_node *); 115 static void pre_ta(DECL_ARGS); 116 static int pre_vt(DECL_ARGS); 117 static int pre_xr(DECL_ARGS); 118 static void print_word(const char *); 119 static void print_line(const char *, int); 120 static void print_block(const char *, int); 121 static void print_offs(const char *, int); 122 static void print_width(const struct mdoc_bl *, 123 const struct roff_node *); 124 static void print_count(int *); 125 static void print_node(DECL_ARGS); 126 127 static const void_fp roff_man_acts[ROFF_MAX] = { 128 pre_br, /* br */ 129 pre_onearg, /* ce */ 130 pre_noarg, /* fi */ 131 pre_ft, /* ft */ 132 pre_onearg, /* ll */ 133 pre_onearg, /* mc */ 134 pre_noarg, /* nf */ 135 pre_onearg, /* po */ 136 pre_onearg, /* rj */ 137 pre_sp, /* sp */ 138 pre_ta, /* ta */ 139 pre_onearg, /* ti */ 140 }; 141 142 static const struct mdoc_man_act mdoc_man_acts[MDOC_MAX - MDOC_Dd] = { 143 { NULL, NULL, NULL, NULL, NULL }, /* Dd */ 144 { NULL, NULL, NULL, NULL, NULL }, /* Dt */ 145 { NULL, NULL, NULL, NULL, NULL }, /* Os */ 146 { NULL, pre_sect, post_sect, ".SH", NULL }, /* Sh */ 147 { NULL, pre_sect, post_sect, ".SS", NULL }, /* Ss */ 148 { NULL, pre_pp, NULL, NULL, NULL }, /* Pp */ 149 { cond_body, pre_dl, post_dl, NULL, NULL }, /* D1 */ 150 { cond_body, pre_dl, post_dl, NULL, NULL }, /* Dl */ 151 { cond_body, pre_bd, post_bd, NULL, NULL }, /* Bd */ 152 { NULL, NULL, NULL, NULL, NULL }, /* Ed */ 153 { cond_body, pre_bl, post_bl, NULL, NULL }, /* Bl */ 154 { NULL, NULL, NULL, NULL, NULL }, /* El */ 155 { NULL, pre_it, post_it, NULL, NULL }, /* It */ 156 { NULL, pre_em, post_font, NULL, NULL }, /* Ad */ 157 { NULL, pre_an, NULL, NULL, NULL }, /* An */ 158 { NULL, pre_ap, NULL, NULL, NULL }, /* Ap */ 159 { NULL, pre_em, post_font, NULL, NULL }, /* Ar */ 160 { NULL, pre_sy, post_font, NULL, NULL }, /* Cd */ 161 { NULL, pre_sy, post_font, NULL, NULL }, /* Cm */ 162 { NULL, pre_li, post_font, NULL, NULL }, /* Dv */ 163 { NULL, pre_li, post_font, NULL, NULL }, /* Er */ 164 { NULL, pre_li, post_font, NULL, NULL }, /* Ev */ 165 { NULL, pre_ex, NULL, NULL, NULL }, /* Ex */ 166 { NULL, pre_fa, post_fa, NULL, NULL }, /* Fa */ 167 { NULL, pre_fd, post_fd, NULL, NULL }, /* Fd */ 168 { NULL, pre_fl, post_fl, NULL, NULL }, /* Fl */ 169 { NULL, pre_fn, post_fn, NULL, NULL }, /* Fn */ 170 { NULL, pre_Ft, post_font, NULL, NULL }, /* Ft */ 171 { NULL, pre_sy, post_font, NULL, NULL }, /* Ic */ 172 { NULL, pre_in, post_in, NULL, NULL }, /* In */ 173 { NULL, pre_li, post_font, NULL, NULL }, /* Li */ 174 { cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */ 175 { NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */ 176 { cond_body, pre_enc, post_enc, "[", "]" }, /* Op */ 177 { NULL, pre_abort, NULL, NULL, NULL }, /* Ot */ 178 { NULL, pre_em, post_font, NULL, NULL }, /* Pa */ 179 { NULL, pre_ex, NULL, NULL, NULL }, /* Rv */ 180 { NULL, NULL, NULL, NULL, NULL }, /* St */ 181 { NULL, pre_em, post_font, NULL, NULL }, /* Va */ 182 { NULL, pre_vt, post_vt, NULL, NULL }, /* Vt */ 183 { NULL, pre_xr, NULL, NULL, NULL }, /* Xr */ 184 { NULL, NULL, post_percent, NULL, NULL }, /* %A */ 185 { NULL, pre_em, post_percent, NULL, NULL }, /* %B */ 186 { NULL, NULL, post_percent, NULL, NULL }, /* %D */ 187 { NULL, pre_em, post_percent, NULL, NULL }, /* %I */ 188 { NULL, pre_em, post_percent, NULL, NULL }, /* %J */ 189 { NULL, NULL, post_percent, NULL, NULL }, /* %N */ 190 { NULL, NULL, post_percent, NULL, NULL }, /* %O */ 191 { NULL, NULL, post_percent, NULL, NULL }, /* %P */ 192 { NULL, NULL, post_percent, NULL, NULL }, /* %R */ 193 { NULL, pre__t, post__t, NULL, NULL }, /* %T */ 194 { NULL, NULL, post_percent, NULL, NULL }, /* %V */ 195 { NULL, NULL, NULL, NULL, NULL }, /* Ac */ 196 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Ao */ 197 { cond_body, pre_aq, post_aq, NULL, NULL }, /* Aq */ 198 { NULL, NULL, NULL, NULL, NULL }, /* At */ 199 { NULL, NULL, NULL, NULL, NULL }, /* Bc */ 200 { NULL, pre_bf, post_bf, NULL, NULL }, /* Bf */ 201 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bo */ 202 { cond_body, pre_enc, post_enc, "[", "]" }, /* Bq */ 203 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bsx */ 204 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bx */ 205 { NULL, pre_skip, NULL, NULL, NULL }, /* Db */ 206 { NULL, NULL, NULL, NULL, NULL }, /* Dc */ 207 { cond_body, pre_enc, post_enc, "\\(lq", "\\(rq" }, /* Do */ 208 { cond_body, pre_enc, post_enc, "\\(lq", "\\(rq" }, /* Dq */ 209 { NULL, NULL, NULL, NULL, NULL }, /* Ec */ 210 { NULL, NULL, NULL, NULL, NULL }, /* Ef */ 211 { NULL, pre_em, post_font, NULL, NULL }, /* Em */ 212 { cond_body, pre_eo, post_eo, NULL, NULL }, /* Eo */ 213 { NULL, pre_bk, post_bk, NULL, NULL }, /* Fx */ 214 { NULL, pre_sy, post_font, NULL, NULL }, /* Ms */ 215 { NULL, pre_no, NULL, NULL, NULL }, /* No */ 216 { NULL, pre_ns, NULL, NULL, NULL }, /* Ns */ 217 { NULL, pre_bk, post_bk, NULL, NULL }, /* Nx */ 218 { NULL, pre_bk, post_bk, NULL, NULL }, /* Ox */ 219 { NULL, NULL, NULL, NULL, NULL }, /* Pc */ 220 { NULL, NULL, post_pf, NULL, NULL }, /* Pf */ 221 { cond_body, pre_enc, post_enc, "(", ")" }, /* Po */ 222 { cond_body, pre_enc, post_enc, "(", ")" }, /* Pq */ 223 { NULL, NULL, NULL, NULL, NULL }, /* Qc */ 224 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Ql */ 225 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qo */ 226 { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qq */ 227 { NULL, NULL, NULL, NULL, NULL }, /* Re */ 228 { cond_body, pre_rs, NULL, NULL, NULL }, /* Rs */ 229 { NULL, NULL, NULL, NULL, NULL }, /* Sc */ 230 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* So */ 231 { cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Sq */ 232 { NULL, pre_sm, NULL, NULL, NULL }, /* Sm */ 233 { NULL, pre_em, post_font, NULL, NULL }, /* Sx */ 234 { NULL, pre_sy, post_font, NULL, NULL }, /* Sy */ 235 { NULL, pre_li, post_font, NULL, NULL }, /* Tn */ 236 { NULL, NULL, NULL, NULL, NULL }, /* Ux */ 237 { NULL, NULL, NULL, NULL, NULL }, /* Xc */ 238 { NULL, NULL, NULL, NULL, NULL }, /* Xo */ 239 { NULL, pre_fo, post_fo, NULL, NULL }, /* Fo */ 240 { NULL, NULL, NULL, NULL, NULL }, /* Fc */ 241 { cond_body, pre_enc, post_enc, "[", "]" }, /* Oo */ 242 { NULL, NULL, NULL, NULL, NULL }, /* Oc */ 243 { NULL, pre_bk, post_bk, NULL, NULL }, /* Bk */ 244 { NULL, NULL, NULL, NULL, NULL }, /* Ek */ 245 { NULL, NULL, NULL, NULL, NULL }, /* Bt */ 246 { NULL, NULL, NULL, NULL, NULL }, /* Hf */ 247 { NULL, pre_em, post_font, NULL, NULL }, /* Fr */ 248 { NULL, NULL, NULL, NULL, NULL }, /* Ud */ 249 { NULL, NULL, post_lb, NULL, NULL }, /* Lb */ 250 { NULL, pre_abort, NULL, NULL, NULL }, /* Lp */ 251 { NULL, pre_lk, NULL, NULL, NULL }, /* Lk */ 252 { NULL, pre_em, post_font, NULL, NULL }, /* Mt */ 253 { cond_body, pre_enc, post_enc, "{", "}" }, /* Brq */ 254 { cond_body, pre_enc, post_enc, "{", "}" }, /* Bro */ 255 { NULL, NULL, NULL, NULL, NULL }, /* Brc */ 256 { NULL, NULL, post_percent, NULL, NULL }, /* %C */ 257 { NULL, pre_skip, NULL, NULL, NULL }, /* Es */ 258 { cond_body, pre_en, post_en, NULL, NULL }, /* En */ 259 { NULL, pre_bk, post_bk, NULL, NULL }, /* Dx */ 260 { NULL, NULL, post_percent, NULL, NULL }, /* %Q */ 261 { NULL, NULL, post_percent, NULL, NULL }, /* %U */ 262 { NULL, NULL, NULL, NULL, NULL }, /* Ta */ 263 { NULL, pre_skip, NULL, NULL, NULL }, /* Tg */ 264 }; 265 static const struct mdoc_man_act *mdoc_man_act(enum roff_tok); 266 267 static int outflags; 268 #define MMAN_spc (1 << 0) /* blank character before next word */ 269 #define MMAN_spc_force (1 << 1) /* even before trailing punctuation */ 270 #define MMAN_nl (1 << 2) /* break man(7) code line */ 271 #define MMAN_br (1 << 3) /* break output line */ 272 #define MMAN_sp (1 << 4) /* insert a blank output line */ 273 #define MMAN_PP (1 << 5) /* reset indentation etc. */ 274 #define MMAN_Sm (1 << 6) /* horizontal spacing mode */ 275 #define MMAN_Bk (1 << 7) /* word keep mode */ 276 #define MMAN_Bk_susp (1 << 8) /* suspend this (after a macro) */ 277 #define MMAN_An_split (1 << 9) /* author mode is "split" */ 278 #define MMAN_An_nosplit (1 << 10) /* author mode is "nosplit" */ 279 #define MMAN_PD (1 << 11) /* inter-paragraph spacing disabled */ 280 #define MMAN_nbrword (1 << 12) /* do not break the next word */ 281 282 #define BL_STACK_MAX 32 283 284 static int Bl_stack[BL_STACK_MAX]; /* offsets [chars] */ 285 static int Bl_stack_post[BL_STACK_MAX]; /* add final .RE */ 286 static int Bl_stack_len; /* number of nested Bl blocks */ 287 static int TPremain; /* characters before tag is full */ 288 289 static struct { 290 char *head; 291 char *tail; 292 size_t size; 293 } fontqueue; 294 295 296 static const struct mdoc_man_act * 297 mdoc_man_act(enum roff_tok tok) 298 { 299 assert(tok >= MDOC_Dd && tok <= MDOC_MAX); 300 return mdoc_man_acts + (tok - MDOC_Dd); 301 } 302 303 static int 304 man_strlen(const char *cp) 305 { 306 size_t rsz; 307 int skip, sz; 308 309 sz = 0; 310 skip = 0; 311 for (;;) { 312 rsz = strcspn(cp, "\\"); 313 if (rsz) { 314 cp += rsz; 315 if (skip) { 316 skip = 0; 317 rsz--; 318 } 319 sz += rsz; 320 } 321 if ('\0' == *cp) 322 break; 323 cp++; 324 switch (mandoc_escape(&cp, NULL, NULL)) { 325 case ESCAPE_ERROR: 326 return sz; 327 case ESCAPE_UNICODE: 328 case ESCAPE_NUMBERED: 329 case ESCAPE_SPECIAL: 330 case ESCAPE_UNDEF: 331 case ESCAPE_OVERSTRIKE: 332 if (skip) 333 skip = 0; 334 else 335 sz++; 336 break; 337 case ESCAPE_SKIPCHAR: 338 skip = 1; 339 break; 340 default: 341 break; 342 } 343 } 344 return sz; 345 } 346 347 static void 348 font_push(char newfont) 349 { 350 351 if (fontqueue.head + fontqueue.size <= ++fontqueue.tail) { 352 fontqueue.size += 8; 353 fontqueue.head = mandoc_realloc(fontqueue.head, 354 fontqueue.size); 355 } 356 *fontqueue.tail = newfont; 357 print_word(""); 358 printf("\\f"); 359 putchar(newfont); 360 outflags &= ~MMAN_spc; 361 } 362 363 static void 364 font_pop(void) 365 { 366 367 if (fontqueue.tail > fontqueue.head) 368 fontqueue.tail--; 369 outflags &= ~MMAN_spc; 370 print_word(""); 371 printf("\\f"); 372 putchar(*fontqueue.tail); 373 } 374 375 static void 376 print_word(const char *s) 377 { 378 379 if ((MMAN_PP | MMAN_sp | MMAN_br | MMAN_nl) & outflags) { 380 /* 381 * If we need a newline, print it now and start afresh. 382 */ 383 if (MMAN_PP & outflags) { 384 if (MMAN_sp & outflags) { 385 if (MMAN_PD & outflags) { 386 printf("\n.PD"); 387 outflags &= ~MMAN_PD; 388 } 389 } else if ( ! (MMAN_PD & outflags)) { 390 printf("\n.PD 0"); 391 outflags |= MMAN_PD; 392 } 393 printf("\n.PP\n"); 394 } else if (MMAN_sp & outflags) 395 printf("\n.sp\n"); 396 else if (MMAN_br & outflags) 397 printf("\n.br\n"); 398 else if (MMAN_nl & outflags) 399 putchar('\n'); 400 outflags &= ~(MMAN_PP|MMAN_sp|MMAN_br|MMAN_nl|MMAN_spc); 401 if (1 == TPremain) 402 printf(".br\n"); 403 TPremain = 0; 404 } else if (MMAN_spc & outflags) { 405 /* 406 * If we need a space, only print it if 407 * (1) it is forced by `No' or 408 * (2) what follows is not terminating punctuation or 409 * (3) what follows is longer than one character. 410 */ 411 if (MMAN_spc_force & outflags || '\0' == s[0] || 412 NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1]) { 413 if (MMAN_Bk & outflags && 414 ! (MMAN_Bk_susp & outflags)) 415 putchar('\\'); 416 putchar(' '); 417 if (TPremain) 418 TPremain--; 419 } 420 } 421 422 /* 423 * Reassign needing space if we're not following opening 424 * punctuation. 425 */ 426 if (MMAN_Sm & outflags && ('\0' == s[0] || 427 (('(' != s[0] && '[' != s[0]) || '\0' != s[1]))) 428 outflags |= MMAN_spc; 429 else 430 outflags &= ~MMAN_spc; 431 outflags &= ~(MMAN_spc_force | MMAN_Bk_susp); 432 433 for ( ; *s; s++) { 434 switch (*s) { 435 case ASCII_NBRSP: 436 printf("\\ "); 437 break; 438 case ASCII_HYPH: 439 putchar('-'); 440 break; 441 case ASCII_BREAK: 442 printf("\\:"); 443 break; 444 case ' ': 445 if (MMAN_nbrword & outflags) { 446 printf("\\ "); 447 break; 448 } 449 /* FALLTHROUGH */ 450 default: 451 putchar((unsigned char)*s); 452 break; 453 } 454 if (TPremain) 455 TPremain--; 456 } 457 outflags &= ~MMAN_nbrword; 458 } 459 460 static void 461 print_line(const char *s, int newflags) 462 { 463 464 outflags |= MMAN_nl; 465 print_word(s); 466 outflags |= newflags; 467 } 468 469 static void 470 print_block(const char *s, int newflags) 471 { 472 473 outflags &= ~MMAN_PP; 474 if (MMAN_sp & outflags) { 475 outflags &= ~(MMAN_sp | MMAN_br); 476 if (MMAN_PD & outflags) { 477 print_line(".PD", 0); 478 outflags &= ~MMAN_PD; 479 } 480 } else if (! (MMAN_PD & outflags)) 481 print_line(".PD 0", MMAN_PD); 482 outflags |= MMAN_nl; 483 print_word(s); 484 outflags |= MMAN_Bk_susp | newflags; 485 } 486 487 static void 488 print_offs(const char *v, int keywords) 489 { 490 char buf[24]; 491 struct roffsu su; 492 const char *end; 493 int sz; 494 495 print_line(".RS", MMAN_Bk_susp); 496 497 /* Convert v into a number (of characters). */ 498 if (NULL == v || '\0' == *v || (keywords && !strcmp(v, "left"))) 499 sz = 0; 500 else if (keywords && !strcmp(v, "indent")) 501 sz = 6; 502 else if (keywords && !strcmp(v, "indent-two")) 503 sz = 12; 504 else { 505 end = a2roffsu(v, &su, SCALE_EN); 506 if (end == NULL || *end != '\0') 507 sz = man_strlen(v); 508 else if (SCALE_EN == su.unit) 509 sz = su.scale; 510 else { 511 /* 512 * XXX 513 * If we are inside an enclosing list, 514 * there is no easy way to add the two 515 * indentations because they are provided 516 * in terms of different units. 517 */ 518 print_word(v); 519 outflags |= MMAN_nl; 520 return; 521 } 522 } 523 524 /* 525 * We are inside an enclosing list. 526 * Add the two indentations. 527 */ 528 if (Bl_stack_len) 529 sz += Bl_stack[Bl_stack_len - 1]; 530 531 (void)snprintf(buf, sizeof(buf), "%dn", sz); 532 print_word(buf); 533 outflags |= MMAN_nl; 534 } 535 536 /* 537 * Set up the indentation for a list item; used from pre_it(). 538 */ 539 static void 540 print_width(const struct mdoc_bl *bl, const struct roff_node *child) 541 { 542 char buf[24]; 543 struct roffsu su; 544 const char *end; 545 int numeric, remain, sz, chsz; 546 547 numeric = 1; 548 remain = 0; 549 550 /* Convert the width into a number (of characters). */ 551 if (bl->width == NULL) 552 sz = (bl->type == LIST_hang) ? 6 : 0; 553 else { 554 end = a2roffsu(bl->width, &su, SCALE_MAX); 555 if (end == NULL || *end != '\0') 556 sz = man_strlen(bl->width); 557 else if (SCALE_EN == su.unit) 558 sz = su.scale; 559 else { 560 sz = 0; 561 numeric = 0; 562 } 563 } 564 565 /* XXX Rough estimation, might have multiple parts. */ 566 if (bl->type == LIST_enum) 567 chsz = (bl->count > 8) + 1; 568 else if (child != NULL && child->type == ROFFT_TEXT) 569 chsz = man_strlen(child->string); 570 else 571 chsz = 0; 572 573 /* Maybe we are inside an enclosing list? */ 574 mid_it(); 575 576 /* 577 * Save our own indentation, 578 * such that child lists can use it. 579 */ 580 Bl_stack[Bl_stack_len++] = sz + 2; 581 582 /* Set up the current list. */ 583 if (chsz > sz && bl->type != LIST_tag) 584 print_block(".HP", MMAN_spc); 585 else { 586 print_block(".TP", MMAN_spc); 587 remain = sz + 2; 588 } 589 if (numeric) { 590 (void)snprintf(buf, sizeof(buf), "%dn", sz + 2); 591 print_word(buf); 592 } else 593 print_word(bl->width); 594 TPremain = remain; 595 } 596 597 static void 598 print_count(int *count) 599 { 600 char buf[24]; 601 602 (void)snprintf(buf, sizeof(buf), "%d.\\&", ++*count); 603 print_word(buf); 604 } 605 606 void 607 man_mdoc(void *arg, const struct roff_meta *mdoc) 608 { 609 struct roff_node *n; 610 611 printf(".\\\" Automatically generated from an mdoc input file." 612 " Do not edit.\n"); 613 for (n = mdoc->first->child; n != NULL; n = n->next) { 614 if (n->type != ROFFT_COMMENT) 615 break; 616 printf(".\\\"%s\n", n->string); 617 } 618 619 printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"\n", 620 mdoc->title, (mdoc->msec == NULL ? "" : mdoc->msec), 621 mdoc->date, mdoc->os, mdoc->vol); 622 623 /* Disable hyphenation and if nroff, disable justification. */ 624 printf(".nh\n.if n .ad l"); 625 626 outflags = MMAN_nl | MMAN_Sm; 627 if (0 == fontqueue.size) { 628 fontqueue.size = 8; 629 fontqueue.head = fontqueue.tail = mandoc_malloc(8); 630 *fontqueue.tail = 'R'; 631 } 632 for (; n != NULL; n = n->next) 633 print_node(mdoc, n); 634 putchar('\n'); 635 } 636 637 static void 638 print_node(DECL_ARGS) 639 { 640 const struct mdoc_man_act *act; 641 struct roff_node *sub; 642 int cond, do_sub; 643 644 if (n->flags & NODE_NOPRT) 645 return; 646 647 /* 648 * Break the line if we were parsed subsequent the current node. 649 * This makes the page structure be more consistent. 650 */ 651 if (outflags & MMAN_spc && 652 n->flags & NODE_LINE && 653 !roff_node_transparent(n)) 654 outflags |= MMAN_nl; 655 656 act = NULL; 657 cond = 0; 658 do_sub = 1; 659 n->flags &= ~NODE_ENDED; 660 661 if (n->type == ROFFT_TEXT) { 662 /* 663 * Make sure that we don't happen to start with a 664 * control character at the start of a line. 665 */ 666 if (MMAN_nl & outflags && 667 ('.' == *n->string || '\'' == *n->string)) { 668 print_word(""); 669 printf("\\&"); 670 outflags &= ~MMAN_spc; 671 } 672 if (n->flags & NODE_DELIMC) 673 outflags &= ~(MMAN_spc | MMAN_spc_force); 674 else if (outflags & MMAN_Sm) 675 outflags |= MMAN_spc_force; 676 print_word(n->string); 677 if (n->flags & NODE_DELIMO) 678 outflags &= ~(MMAN_spc | MMAN_spc_force); 679 else if (outflags & MMAN_Sm) 680 outflags |= MMAN_spc; 681 } else if (n->tok < ROFF_MAX) { 682 (*roff_man_acts[n->tok])(meta, n); 683 return; 684 } else { 685 /* 686 * Conditionally run the pre-node action handler for a 687 * node. 688 */ 689 act = mdoc_man_act(n->tok); 690 cond = act->cond == NULL || (*act->cond)(meta, n); 691 if (cond && act->pre != NULL && 692 (n->end == ENDBODY_NOT || n->child != NULL)) 693 do_sub = (*act->pre)(meta, n); 694 } 695 696 /* 697 * Conditionally run all child nodes. 698 * Note that this iterates over children instead of using 699 * recursion. This prevents unnecessary depth in the stack. 700 */ 701 if (do_sub) 702 for (sub = n->child; sub; sub = sub->next) 703 print_node(meta, sub); 704 705 /* 706 * Lastly, conditionally run the post-node handler. 707 */ 708 if (NODE_ENDED & n->flags) 709 return; 710 711 if (cond && act->post) 712 (*act->post)(meta, n); 713 714 if (ENDBODY_NOT != n->end) 715 n->body->flags |= NODE_ENDED; 716 } 717 718 static int 719 cond_head(DECL_ARGS) 720 { 721 722 return n->type == ROFFT_HEAD; 723 } 724 725 static int 726 cond_body(DECL_ARGS) 727 { 728 729 return n->type == ROFFT_BODY; 730 } 731 732 static int 733 pre_abort(DECL_ARGS) 734 { 735 abort(); 736 } 737 738 static int 739 pre_enc(DECL_ARGS) 740 { 741 const char *prefix; 742 743 prefix = mdoc_man_act(n->tok)->prefix; 744 if (NULL == prefix) 745 return 1; 746 print_word(prefix); 747 outflags &= ~MMAN_spc; 748 return 1; 749 } 750 751 static void 752 post_enc(DECL_ARGS) 753 { 754 const char *suffix; 755 756 suffix = mdoc_man_act(n->tok)->suffix; 757 if (NULL == suffix) 758 return; 759 outflags &= ~(MMAN_spc | MMAN_nl); 760 print_word(suffix); 761 } 762 763 static int 764 pre_ex(DECL_ARGS) 765 { 766 outflags |= MMAN_br | MMAN_nl; 767 return 1; 768 } 769 770 static void 771 post_font(DECL_ARGS) 772 { 773 774 font_pop(); 775 } 776 777 static void 778 post_percent(DECL_ARGS) 779 { 780 struct roff_node *np, *nn, *nnn; 781 782 if (mdoc_man_act(n->tok)->pre == pre_em) 783 font_pop(); 784 785 if ((nn = roff_node_next(n)) != NULL) { 786 np = roff_node_prev(n); 787 nnn = nn == NULL ? NULL : roff_node_next(nn); 788 if (nn->tok != n->tok || 789 (np != NULL && np->tok == n->tok) || 790 (nnn != NULL && nnn->tok == n->tok)) 791 print_word(","); 792 if (nn->tok == n->tok && 793 (nnn == NULL || nnn->tok != n->tok)) 794 print_word("and"); 795 } else { 796 print_word("."); 797 outflags |= MMAN_nl; 798 } 799 } 800 801 static int 802 pre__t(DECL_ARGS) 803 { 804 805 if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T) { 806 print_word("\\(lq"); 807 outflags &= ~MMAN_spc; 808 } else 809 font_push('I'); 810 return 1; 811 } 812 813 static void 814 post__t(DECL_ARGS) 815 { 816 817 if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T) { 818 outflags &= ~MMAN_spc; 819 print_word("\\(rq"); 820 } else 821 font_pop(); 822 post_percent(meta, n); 823 } 824 825 /* 826 * Print before a section header. 827 */ 828 static int 829 pre_sect(DECL_ARGS) 830 { 831 832 if (n->type == ROFFT_HEAD) { 833 outflags |= MMAN_sp; 834 print_block(mdoc_man_act(n->tok)->prefix, 0); 835 print_word(""); 836 putchar('\"'); 837 outflags &= ~MMAN_spc; 838 } 839 return 1; 840 } 841 842 /* 843 * Print subsequent a section header. 844 */ 845 static void 846 post_sect(DECL_ARGS) 847 { 848 849 if (n->type != ROFFT_HEAD) 850 return; 851 outflags &= ~MMAN_spc; 852 print_word(""); 853 putchar('\"'); 854 outflags |= MMAN_nl; 855 if (MDOC_Sh == n->tok && SEC_AUTHORS == n->sec) 856 outflags &= ~(MMAN_An_split | MMAN_An_nosplit); 857 } 858 859 /* See mdoc_term.c, synopsis_pre() for comments. */ 860 static void 861 pre_syn(struct roff_node *n) 862 { 863 struct roff_node *np; 864 865 if ((n->flags & NODE_SYNPRETTY) == 0 || 866 (np = roff_node_prev(n)) == NULL) 867 return; 868 869 if (np->tok == n->tok && 870 MDOC_Ft != n->tok && 871 MDOC_Fo != n->tok && 872 MDOC_Fn != n->tok) { 873 outflags |= MMAN_br; 874 return; 875 } 876 877 switch (np->tok) { 878 case MDOC_Fd: 879 case MDOC_Fn: 880 case MDOC_Fo: 881 case MDOC_In: 882 case MDOC_Vt: 883 outflags |= MMAN_sp; 884 break; 885 case MDOC_Ft: 886 if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) { 887 outflags |= MMAN_sp; 888 break; 889 } 890 /* FALLTHROUGH */ 891 default: 892 outflags |= MMAN_br; 893 break; 894 } 895 } 896 897 static int 898 pre_an(DECL_ARGS) 899 { 900 901 switch (n->norm->An.auth) { 902 case AUTH_split: 903 outflags &= ~MMAN_An_nosplit; 904 outflags |= MMAN_An_split; 905 return 0; 906 case AUTH_nosplit: 907 outflags &= ~MMAN_An_split; 908 outflags |= MMAN_An_nosplit; 909 return 0; 910 default: 911 if (MMAN_An_split & outflags) 912 outflags |= MMAN_br; 913 else if (SEC_AUTHORS == n->sec && 914 ! (MMAN_An_nosplit & outflags)) 915 outflags |= MMAN_An_split; 916 return 1; 917 } 918 } 919 920 static int 921 pre_ap(DECL_ARGS) 922 { 923 924 outflags &= ~MMAN_spc; 925 print_word("'"); 926 outflags &= ~MMAN_spc; 927 return 0; 928 } 929 930 static int 931 pre_aq(DECL_ARGS) 932 { 933 934 print_word(n->child != NULL && n->child->next == NULL && 935 n->child->tok == MDOC_Mt ? "<" : "\\(la"); 936 outflags &= ~MMAN_spc; 937 return 1; 938 } 939 940 static void 941 post_aq(DECL_ARGS) 942 { 943 944 outflags &= ~(MMAN_spc | MMAN_nl); 945 print_word(n->child != NULL && n->child->next == NULL && 946 n->child->tok == MDOC_Mt ? ">" : "\\(ra"); 947 } 948 949 static int 950 pre_bd(DECL_ARGS) 951 { 952 outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br); 953 if (n->norm->Bd.type == DISP_unfilled || 954 n->norm->Bd.type == DISP_literal) 955 print_line(".nf", 0); 956 if (n->norm->Bd.comp == 0 && roff_node_prev(n->parent) != NULL) 957 outflags |= MMAN_sp; 958 print_offs(n->norm->Bd.offs, 1); 959 return 1; 960 } 961 962 static void 963 post_bd(DECL_ARGS) 964 { 965 enum roff_tok bef, now; 966 967 /* Close out this display. */ 968 print_line(".RE", MMAN_nl); 969 bef = n->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi; 970 if (n->last == NULL) 971 now = n->norm->Bd.type == DISP_unfilled || 972 n->norm->Bd.type == DISP_literal ? ROFF_nf : ROFF_fi; 973 else if (n->last->tok == ROFF_nf) 974 now = ROFF_nf; 975 else if (n->last->tok == ROFF_fi) 976 now = ROFF_fi; 977 else 978 now = n->last->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi; 979 if (bef != now) { 980 outflags |= MMAN_nl; 981 print_word("."); 982 outflags &= ~MMAN_spc; 983 print_word(roff_name[bef]); 984 outflags |= MMAN_nl; 985 } 986 987 /* Maybe we are inside an enclosing list? */ 988 if (roff_node_next(n->parent) != NULL) 989 mid_it(); 990 } 991 992 static int 993 pre_bf(DECL_ARGS) 994 { 995 996 switch (n->type) { 997 case ROFFT_BLOCK: 998 return 1; 999 case ROFFT_BODY: 1000 break; 1001 default: 1002 return 0; 1003 } 1004 switch (n->norm->Bf.font) { 1005 case FONT_Em: 1006 font_push('I'); 1007 break; 1008 case FONT_Sy: 1009 font_push('B'); 1010 break; 1011 default: 1012 font_push('R'); 1013 break; 1014 } 1015 return 1; 1016 } 1017 1018 static void 1019 post_bf(DECL_ARGS) 1020 { 1021 1022 if (n->type == ROFFT_BODY) 1023 font_pop(); 1024 } 1025 1026 static int 1027 pre_bk(DECL_ARGS) 1028 { 1029 switch (n->type) { 1030 case ROFFT_BLOCK: 1031 return 1; 1032 case ROFFT_BODY: 1033 case ROFFT_ELEM: 1034 outflags |= MMAN_Bk; 1035 return 1; 1036 default: 1037 return 0; 1038 } 1039 } 1040 1041 static void 1042 post_bk(DECL_ARGS) 1043 { 1044 switch (n->type) { 1045 case ROFFT_ELEM: 1046 while ((n = n->parent) != NULL) 1047 if (n->tok == MDOC_Bk) 1048 return; 1049 /* FALLTHROUGH */ 1050 case ROFFT_BODY: 1051 outflags &= ~MMAN_Bk; 1052 break; 1053 default: 1054 break; 1055 } 1056 } 1057 1058 static int 1059 pre_bl(DECL_ARGS) 1060 { 1061 size_t icol; 1062 1063 /* 1064 * print_offs() will increase the -offset to account for 1065 * a possible enclosing .It, but any enclosed .It blocks 1066 * just nest and do not add up their indentation. 1067 */ 1068 if (n->norm->Bl.offs) { 1069 print_offs(n->norm->Bl.offs, 0); 1070 Bl_stack[Bl_stack_len++] = 0; 1071 } 1072 1073 switch (n->norm->Bl.type) { 1074 case LIST_enum: 1075 n->norm->Bl.count = 0; 1076 return 1; 1077 case LIST_column: 1078 break; 1079 default: 1080 return 1; 1081 } 1082 1083 if (n->child != NULL) { 1084 print_line(".TS", MMAN_nl); 1085 for (icol = 0; icol < n->norm->Bl.ncols; icol++) 1086 print_word("l"); 1087 print_word("."); 1088 } 1089 outflags |= MMAN_nl; 1090 return 1; 1091 } 1092 1093 static void 1094 post_bl(DECL_ARGS) 1095 { 1096 1097 switch (n->norm->Bl.type) { 1098 case LIST_column: 1099 if (n->child != NULL) 1100 print_line(".TE", 0); 1101 break; 1102 case LIST_enum: 1103 n->norm->Bl.count = 0; 1104 break; 1105 default: 1106 break; 1107 } 1108 1109 if (n->norm->Bl.offs) { 1110 print_line(".RE", MMAN_nl); 1111 assert(Bl_stack_len); 1112 Bl_stack_len--; 1113 assert(Bl_stack[Bl_stack_len] == 0); 1114 } else { 1115 outflags |= MMAN_PP | MMAN_nl; 1116 outflags &= ~(MMAN_sp | MMAN_br); 1117 } 1118 1119 /* Maybe we are inside an enclosing list? */ 1120 if (roff_node_next(n->parent) != NULL) 1121 mid_it(); 1122 } 1123 1124 static void 1125 pre_br(DECL_ARGS) 1126 { 1127 outflags |= MMAN_br; 1128 } 1129 1130 static int 1131 pre_dl(DECL_ARGS) 1132 { 1133 print_offs("6n", 0); 1134 return 1; 1135 } 1136 1137 static void 1138 post_dl(DECL_ARGS) 1139 { 1140 print_line(".RE", MMAN_nl); 1141 1142 /* Maybe we are inside an enclosing list? */ 1143 if (roff_node_next(n->parent) != NULL) 1144 mid_it(); 1145 } 1146 1147 static int 1148 pre_em(DECL_ARGS) 1149 { 1150 1151 font_push('I'); 1152 return 1; 1153 } 1154 1155 static int 1156 pre_en(DECL_ARGS) 1157 { 1158 1159 if (NULL == n->norm->Es || 1160 NULL == n->norm->Es->child) 1161 return 1; 1162 1163 print_word(n->norm->Es->child->string); 1164 outflags &= ~MMAN_spc; 1165 return 1; 1166 } 1167 1168 static void 1169 post_en(DECL_ARGS) 1170 { 1171 1172 if (NULL == n->norm->Es || 1173 NULL == n->norm->Es->child || 1174 NULL == n->norm->Es->child->next) 1175 return; 1176 1177 outflags &= ~MMAN_spc; 1178 print_word(n->norm->Es->child->next->string); 1179 return; 1180 } 1181 1182 static int 1183 pre_eo(DECL_ARGS) 1184 { 1185 1186 if (n->end == ENDBODY_NOT && 1187 n->parent->head->child == NULL && 1188 n->child != NULL && 1189 n->child->end != ENDBODY_NOT) 1190 print_word("\\&"); 1191 else if (n->end != ENDBODY_NOT ? n->child != NULL : 1192 n->parent->head->child != NULL && (n->child != NULL || 1193 (n->parent->tail != NULL && n->parent->tail->child != NULL))) 1194 outflags &= ~(MMAN_spc | MMAN_nl); 1195 return 1; 1196 } 1197 1198 static void 1199 post_eo(DECL_ARGS) 1200 { 1201 int body, tail; 1202 1203 if (n->end != ENDBODY_NOT) { 1204 outflags |= MMAN_spc; 1205 return; 1206 } 1207 1208 body = n->child != NULL || n->parent->head->child != NULL; 1209 tail = n->parent->tail != NULL && n->parent->tail->child != NULL; 1210 1211 if (body && tail) 1212 outflags &= ~MMAN_spc; 1213 else if ( ! (body || tail)) 1214 print_word("\\&"); 1215 else if ( ! tail) 1216 outflags |= MMAN_spc; 1217 } 1218 1219 static int 1220 pre_fa(DECL_ARGS) 1221 { 1222 int am_Fa; 1223 1224 am_Fa = MDOC_Fa == n->tok; 1225 1226 if (am_Fa) 1227 n = n->child; 1228 1229 while (NULL != n) { 1230 font_push('I'); 1231 if (am_Fa || NODE_SYNPRETTY & n->flags) 1232 outflags |= MMAN_nbrword; 1233 print_node(meta, n); 1234 font_pop(); 1235 if (NULL != (n = n->next)) 1236 print_word(","); 1237 } 1238 return 0; 1239 } 1240 1241 static void 1242 post_fa(DECL_ARGS) 1243 { 1244 struct roff_node *nn; 1245 1246 if ((nn = roff_node_next(n)) != NULL && nn->tok == MDOC_Fa) 1247 print_word(","); 1248 } 1249 1250 static int 1251 pre_fd(DECL_ARGS) 1252 { 1253 pre_syn(n); 1254 font_push('B'); 1255 return 1; 1256 } 1257 1258 static void 1259 post_fd(DECL_ARGS) 1260 { 1261 font_pop(); 1262 outflags |= MMAN_br; 1263 } 1264 1265 static int 1266 pre_fl(DECL_ARGS) 1267 { 1268 font_push('B'); 1269 print_word("\\-"); 1270 if (n->child != NULL) 1271 outflags &= ~MMAN_spc; 1272 return 1; 1273 } 1274 1275 static void 1276 post_fl(DECL_ARGS) 1277 { 1278 struct roff_node *nn; 1279 1280 font_pop(); 1281 if (n->child == NULL && 1282 ((nn = roff_node_next(n)) != NULL && 1283 nn->type != ROFFT_TEXT && 1284 (nn->flags & NODE_LINE) == 0)) 1285 outflags &= ~MMAN_spc; 1286 } 1287 1288 static int 1289 pre_fn(DECL_ARGS) 1290 { 1291 1292 pre_syn(n); 1293 1294 n = n->child; 1295 if (NULL == n) 1296 return 0; 1297 1298 if (NODE_SYNPRETTY & n->flags) 1299 print_block(".HP 4n", MMAN_nl); 1300 1301 font_push('B'); 1302 print_node(meta, n); 1303 font_pop(); 1304 outflags &= ~MMAN_spc; 1305 print_word("("); 1306 outflags &= ~MMAN_spc; 1307 1308 n = n->next; 1309 if (NULL != n) 1310 pre_fa(meta, n); 1311 return 0; 1312 } 1313 1314 static void 1315 post_fn(DECL_ARGS) 1316 { 1317 1318 print_word(")"); 1319 if (NODE_SYNPRETTY & n->flags) { 1320 print_word(";"); 1321 outflags |= MMAN_PP; 1322 } 1323 } 1324 1325 static int 1326 pre_fo(DECL_ARGS) 1327 { 1328 1329 switch (n->type) { 1330 case ROFFT_BLOCK: 1331 pre_syn(n); 1332 break; 1333 case ROFFT_HEAD: 1334 if (n->child == NULL) 1335 return 0; 1336 if (NODE_SYNPRETTY & n->flags) 1337 print_block(".HP 4n", MMAN_nl); 1338 font_push('B'); 1339 break; 1340 case ROFFT_BODY: 1341 outflags &= ~(MMAN_spc | MMAN_nl); 1342 print_word("("); 1343 outflags &= ~MMAN_spc; 1344 break; 1345 default: 1346 break; 1347 } 1348 return 1; 1349 } 1350 1351 static void 1352 post_fo(DECL_ARGS) 1353 { 1354 1355 switch (n->type) { 1356 case ROFFT_HEAD: 1357 if (n->child != NULL) 1358 font_pop(); 1359 break; 1360 case ROFFT_BODY: 1361 post_fn(meta, n); 1362 break; 1363 default: 1364 break; 1365 } 1366 } 1367 1368 static int 1369 pre_Ft(DECL_ARGS) 1370 { 1371 1372 pre_syn(n); 1373 font_push('I'); 1374 return 1; 1375 } 1376 1377 static void 1378 pre_ft(DECL_ARGS) 1379 { 1380 print_line(".ft", 0); 1381 print_word(n->child->string); 1382 outflags |= MMAN_nl; 1383 } 1384 1385 static int 1386 pre_in(DECL_ARGS) 1387 { 1388 1389 if (NODE_SYNPRETTY & n->flags) { 1390 pre_syn(n); 1391 font_push('B'); 1392 print_word("#include <"); 1393 outflags &= ~MMAN_spc; 1394 } else { 1395 print_word("<"); 1396 outflags &= ~MMAN_spc; 1397 font_push('I'); 1398 } 1399 return 1; 1400 } 1401 1402 static void 1403 post_in(DECL_ARGS) 1404 { 1405 1406 if (NODE_SYNPRETTY & n->flags) { 1407 outflags &= ~MMAN_spc; 1408 print_word(">"); 1409 font_pop(); 1410 outflags |= MMAN_br; 1411 } else { 1412 font_pop(); 1413 outflags &= ~MMAN_spc; 1414 print_word(">"); 1415 } 1416 } 1417 1418 static int 1419 pre_it(DECL_ARGS) 1420 { 1421 const struct roff_node *bln; 1422 1423 switch (n->type) { 1424 case ROFFT_HEAD: 1425 outflags |= MMAN_PP | MMAN_nl; 1426 bln = n->parent->parent; 1427 if (bln->norm->Bl.comp == 0 || 1428 (n->parent->prev == NULL && 1429 roff_node_prev(bln->parent) == NULL)) 1430 outflags |= MMAN_sp; 1431 outflags &= ~MMAN_br; 1432 switch (bln->norm->Bl.type) { 1433 case LIST_item: 1434 return 0; 1435 case LIST_inset: 1436 case LIST_diag: 1437 case LIST_ohang: 1438 if (bln->norm->Bl.type == LIST_diag) 1439 print_line(".B \"", 0); 1440 else 1441 print_line(".BR \\& \"", 0); 1442 outflags &= ~MMAN_spc; 1443 return 1; 1444 case LIST_bullet: 1445 case LIST_dash: 1446 case LIST_hyphen: 1447 print_width(&bln->norm->Bl, NULL); 1448 TPremain = 0; 1449 outflags |= MMAN_nl; 1450 font_push('B'); 1451 if (LIST_bullet == bln->norm->Bl.type) 1452 print_word("\\(bu"); 1453 else 1454 print_word("-"); 1455 font_pop(); 1456 outflags |= MMAN_nl; 1457 return 0; 1458 case LIST_enum: 1459 print_width(&bln->norm->Bl, NULL); 1460 TPremain = 0; 1461 outflags |= MMAN_nl; 1462 print_count(&bln->norm->Bl.count); 1463 outflags |= MMAN_nl; 1464 return 0; 1465 case LIST_hang: 1466 print_width(&bln->norm->Bl, n->child); 1467 TPremain = 0; 1468 outflags |= MMAN_nl; 1469 return 1; 1470 case LIST_tag: 1471 print_width(&bln->norm->Bl, n->child); 1472 putchar('\n'); 1473 outflags &= ~MMAN_spc; 1474 return 1; 1475 default: 1476 return 1; 1477 } 1478 default: 1479 break; 1480 } 1481 return 1; 1482 } 1483 1484 /* 1485 * This function is called after closing out an indented block. 1486 * If we are inside an enclosing list, restore its indentation. 1487 */ 1488 static void 1489 mid_it(void) 1490 { 1491 char buf[24]; 1492 1493 /* Nothing to do outside a list. */ 1494 if (0 == Bl_stack_len || 0 == Bl_stack[Bl_stack_len - 1]) 1495 return; 1496 1497 /* The indentation has already been set up. */ 1498 if (Bl_stack_post[Bl_stack_len - 1]) 1499 return; 1500 1501 /* Restore the indentation of the enclosing list. */ 1502 print_line(".RS", MMAN_Bk_susp); 1503 (void)snprintf(buf, sizeof(buf), "%dn", 1504 Bl_stack[Bl_stack_len - 1]); 1505 print_word(buf); 1506 1507 /* Remeber to close out this .RS block later. */ 1508 Bl_stack_post[Bl_stack_len - 1] = 1; 1509 } 1510 1511 static void 1512 post_it(DECL_ARGS) 1513 { 1514 const struct roff_node *bln; 1515 1516 bln = n->parent->parent; 1517 1518 switch (n->type) { 1519 case ROFFT_HEAD: 1520 switch (bln->norm->Bl.type) { 1521 case LIST_diag: 1522 outflags &= ~MMAN_spc; 1523 print_word("\\ "); 1524 break; 1525 case LIST_ohang: 1526 outflags |= MMAN_br; 1527 break; 1528 default: 1529 break; 1530 } 1531 break; 1532 case ROFFT_BODY: 1533 switch (bln->norm->Bl.type) { 1534 case LIST_bullet: 1535 case LIST_dash: 1536 case LIST_hyphen: 1537 case LIST_enum: 1538 case LIST_hang: 1539 case LIST_tag: 1540 assert(Bl_stack_len); 1541 Bl_stack[--Bl_stack_len] = 0; 1542 1543 /* 1544 * Our indentation had to be restored 1545 * after a child display or child list. 1546 * Close out that indentation block now. 1547 */ 1548 if (Bl_stack_post[Bl_stack_len]) { 1549 print_line(".RE", MMAN_nl); 1550 Bl_stack_post[Bl_stack_len] = 0; 1551 } 1552 break; 1553 case LIST_column: 1554 if (NULL != n->next) { 1555 putchar('\t'); 1556 outflags &= ~MMAN_spc; 1557 } 1558 break; 1559 default: 1560 break; 1561 } 1562 break; 1563 default: 1564 break; 1565 } 1566 } 1567 1568 static void 1569 post_lb(DECL_ARGS) 1570 { 1571 1572 if (SEC_LIBRARY == n->sec) 1573 outflags |= MMAN_br; 1574 } 1575 1576 static int 1577 pre_lk(DECL_ARGS) 1578 { 1579 const struct roff_node *link, *descr, *punct; 1580 1581 if ((link = n->child) == NULL) 1582 return 0; 1583 1584 /* Find beginning of trailing punctuation. */ 1585 punct = n->last; 1586 while (punct != link && punct->flags & NODE_DELIMC) 1587 punct = punct->prev; 1588 punct = punct->next; 1589 1590 /* Link text. */ 1591 if ((descr = link->next) != NULL && descr != punct) { 1592 font_push('I'); 1593 while (descr != punct) { 1594 print_word(descr->string); 1595 descr = descr->next; 1596 } 1597 font_pop(); 1598 print_word(":"); 1599 } 1600 1601 /* Link target. */ 1602 font_push('B'); 1603 print_word(link->string); 1604 font_pop(); 1605 1606 /* Trailing punctuation. */ 1607 while (punct != NULL) { 1608 print_word(punct->string); 1609 punct = punct->next; 1610 } 1611 return 0; 1612 } 1613 1614 static void 1615 pre_onearg(DECL_ARGS) 1616 { 1617 outflags |= MMAN_nl; 1618 print_word("."); 1619 outflags &= ~MMAN_spc; 1620 print_word(roff_name[n->tok]); 1621 if (n->child != NULL) 1622 print_word(n->child->string); 1623 outflags |= MMAN_nl; 1624 if (n->tok == ROFF_ce) 1625 for (n = n->child->next; n != NULL; n = n->next) 1626 print_node(meta, n); 1627 } 1628 1629 static int 1630 pre_li(DECL_ARGS) 1631 { 1632 font_push('R'); 1633 return 1; 1634 } 1635 1636 static int 1637 pre_nm(DECL_ARGS) 1638 { 1639 char *name; 1640 1641 switch (n->type) { 1642 case ROFFT_BLOCK: 1643 outflags |= MMAN_Bk; 1644 pre_syn(n); 1645 return 1; 1646 case ROFFT_HEAD: 1647 case ROFFT_ELEM: 1648 break; 1649 default: 1650 return 1; 1651 } 1652 name = n->child == NULL ? NULL : n->child->string; 1653 if (name == NULL) 1654 return 0; 1655 if (n->type == ROFFT_HEAD) { 1656 if (roff_node_prev(n->parent) == NULL) 1657 outflags |= MMAN_sp; 1658 print_block(".HP", 0); 1659 printf(" %dn", man_strlen(name) + 1); 1660 outflags |= MMAN_nl; 1661 } 1662 font_push('B'); 1663 return 1; 1664 } 1665 1666 static void 1667 post_nm(DECL_ARGS) 1668 { 1669 switch (n->type) { 1670 case ROFFT_BLOCK: 1671 outflags &= ~MMAN_Bk; 1672 break; 1673 case ROFFT_HEAD: 1674 case ROFFT_ELEM: 1675 if (n->child != NULL && n->child->string != NULL) 1676 font_pop(); 1677 break; 1678 default: 1679 break; 1680 } 1681 } 1682 1683 static int 1684 pre_no(DECL_ARGS) 1685 { 1686 outflags |= MMAN_spc_force; 1687 return 1; 1688 } 1689 1690 static void 1691 pre_noarg(DECL_ARGS) 1692 { 1693 outflags |= MMAN_nl; 1694 print_word("."); 1695 outflags &= ~MMAN_spc; 1696 print_word(roff_name[n->tok]); 1697 outflags |= MMAN_nl; 1698 } 1699 1700 static int 1701 pre_ns(DECL_ARGS) 1702 { 1703 outflags &= ~MMAN_spc; 1704 return 0; 1705 } 1706 1707 static void 1708 post_pf(DECL_ARGS) 1709 { 1710 1711 if ( ! (n->next == NULL || n->next->flags & NODE_LINE)) 1712 outflags &= ~MMAN_spc; 1713 } 1714 1715 static int 1716 pre_pp(DECL_ARGS) 1717 { 1718 1719 if (MDOC_It != n->parent->tok) 1720 outflags |= MMAN_PP; 1721 outflags |= MMAN_sp | MMAN_nl; 1722 outflags &= ~MMAN_br; 1723 return 0; 1724 } 1725 1726 static int 1727 pre_rs(DECL_ARGS) 1728 { 1729 1730 if (SEC_SEE_ALSO == n->sec) { 1731 outflags |= MMAN_PP | MMAN_sp | MMAN_nl; 1732 outflags &= ~MMAN_br; 1733 } 1734 return 1; 1735 } 1736 1737 static int 1738 pre_skip(DECL_ARGS) 1739 { 1740 1741 return 0; 1742 } 1743 1744 static int 1745 pre_sm(DECL_ARGS) 1746 { 1747 1748 if (NULL == n->child) 1749 outflags ^= MMAN_Sm; 1750 else if (0 == strcmp("on", n->child->string)) 1751 outflags |= MMAN_Sm; 1752 else 1753 outflags &= ~MMAN_Sm; 1754 1755 if (MMAN_Sm & outflags) 1756 outflags |= MMAN_spc; 1757 1758 return 0; 1759 } 1760 1761 static void 1762 pre_sp(DECL_ARGS) 1763 { 1764 if (outflags & MMAN_PP) { 1765 outflags &= ~MMAN_PP; 1766 print_line(".PP", 0); 1767 } else { 1768 print_line(".sp", 0); 1769 if (n->child != NULL) 1770 print_word(n->child->string); 1771 } 1772 outflags |= MMAN_nl; 1773 } 1774 1775 static int 1776 pre_sy(DECL_ARGS) 1777 { 1778 1779 font_push('B'); 1780 return 1; 1781 } 1782 1783 static void 1784 pre_ta(DECL_ARGS) 1785 { 1786 print_line(".ta", 0); 1787 for (n = n->child; n != NULL; n = n->next) 1788 print_word(n->string); 1789 outflags |= MMAN_nl; 1790 } 1791 1792 static int 1793 pre_vt(DECL_ARGS) 1794 { 1795 1796 if (NODE_SYNPRETTY & n->flags) { 1797 switch (n->type) { 1798 case ROFFT_BLOCK: 1799 pre_syn(n); 1800 return 1; 1801 case ROFFT_BODY: 1802 break; 1803 default: 1804 return 0; 1805 } 1806 } 1807 font_push('I'); 1808 return 1; 1809 } 1810 1811 static void 1812 post_vt(DECL_ARGS) 1813 { 1814 1815 if (n->flags & NODE_SYNPRETTY && n->type != ROFFT_BODY) 1816 return; 1817 font_pop(); 1818 } 1819 1820 static int 1821 pre_xr(DECL_ARGS) 1822 { 1823 1824 n = n->child; 1825 if (NULL == n) 1826 return 0; 1827 print_node(meta, n); 1828 n = n->next; 1829 if (NULL == n) 1830 return 0; 1831 outflags &= ~MMAN_spc; 1832 print_word("("); 1833 print_node(meta, n); 1834 print_word(")"); 1835 return 0; 1836 } 1837