1 /* $OpenBSD: mdoc_argv.c,v 1.66 2017/03/03 15:04:51 schwarze Exp $ */ 2 /* 3 * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> 4 * Copyright (c) 2012, 2014-2017 Ingo Schwarze <schwarze@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 #include <sys/types.h> 19 20 #include <assert.h> 21 #include <stdlib.h> 22 #include <stdio.h> 23 #include <string.h> 24 25 #include "mandoc_aux.h" 26 #include "mandoc.h" 27 #include "roff.h" 28 #include "mdoc.h" 29 #include "libmandoc.h" 30 #include "roff_int.h" 31 #include "libmdoc.h" 32 33 #define MULTI_STEP 5 /* pre-allocate argument values */ 34 #define DELIMSZ 6 /* max possible size of a delimiter */ 35 36 enum argsflag { 37 ARGSFL_NONE = 0, 38 ARGSFL_DELIM, /* handle delimiters of [[::delim::][ ]+]+ */ 39 ARGSFL_TABSEP /* handle tab/`Ta' separated phrases */ 40 }; 41 42 enum argvflag { 43 ARGV_NONE, /* no args to flag (e.g., -split) */ 44 ARGV_SINGLE, /* one arg to flag (e.g., -file xxx) */ 45 ARGV_MULTI /* multiple args (e.g., -column xxx yyy) */ 46 }; 47 48 struct mdocarg { 49 enum argsflag flags; 50 const enum mdocargt *argvs; 51 }; 52 53 static void argn_free(struct mdoc_arg *, int); 54 static enum margserr args(struct roff_man *, int, int *, 55 char *, enum argsflag, char **); 56 static int args_checkpunct(const char *, int); 57 static void argv_multi(struct roff_man *, int, 58 struct mdoc_argv *, int *, char *); 59 static void argv_single(struct roff_man *, int, 60 struct mdoc_argv *, int *, char *); 61 62 static const enum argvflag argvflags[MDOC_ARG_MAX] = { 63 ARGV_NONE, /* MDOC_Split */ 64 ARGV_NONE, /* MDOC_Nosplit */ 65 ARGV_NONE, /* MDOC_Ragged */ 66 ARGV_NONE, /* MDOC_Unfilled */ 67 ARGV_NONE, /* MDOC_Literal */ 68 ARGV_SINGLE, /* MDOC_File */ 69 ARGV_SINGLE, /* MDOC_Offset */ 70 ARGV_NONE, /* MDOC_Bullet */ 71 ARGV_NONE, /* MDOC_Dash */ 72 ARGV_NONE, /* MDOC_Hyphen */ 73 ARGV_NONE, /* MDOC_Item */ 74 ARGV_NONE, /* MDOC_Enum */ 75 ARGV_NONE, /* MDOC_Tag */ 76 ARGV_NONE, /* MDOC_Diag */ 77 ARGV_NONE, /* MDOC_Hang */ 78 ARGV_NONE, /* MDOC_Ohang */ 79 ARGV_NONE, /* MDOC_Inset */ 80 ARGV_MULTI, /* MDOC_Column */ 81 ARGV_SINGLE, /* MDOC_Width */ 82 ARGV_NONE, /* MDOC_Compact */ 83 ARGV_NONE, /* MDOC_Std */ 84 ARGV_NONE, /* MDOC_Filled */ 85 ARGV_NONE, /* MDOC_Words */ 86 ARGV_NONE, /* MDOC_Emphasis */ 87 ARGV_NONE, /* MDOC_Symbolic */ 88 ARGV_NONE /* MDOC_Symbolic */ 89 }; 90 91 static const enum mdocargt args_Ex[] = { 92 MDOC_Std, 93 MDOC_ARG_MAX 94 }; 95 96 static const enum mdocargt args_An[] = { 97 MDOC_Split, 98 MDOC_Nosplit, 99 MDOC_ARG_MAX 100 }; 101 102 static const enum mdocargt args_Bd[] = { 103 MDOC_Ragged, 104 MDOC_Unfilled, 105 MDOC_Filled, 106 MDOC_Literal, 107 MDOC_File, 108 MDOC_Offset, 109 MDOC_Compact, 110 MDOC_Centred, 111 MDOC_ARG_MAX 112 }; 113 114 static const enum mdocargt args_Bf[] = { 115 MDOC_Emphasis, 116 MDOC_Literal, 117 MDOC_Symbolic, 118 MDOC_ARG_MAX 119 }; 120 121 static const enum mdocargt args_Bk[] = { 122 MDOC_Words, 123 MDOC_ARG_MAX 124 }; 125 126 static const enum mdocargt args_Bl[] = { 127 MDOC_Bullet, 128 MDOC_Dash, 129 MDOC_Hyphen, 130 MDOC_Item, 131 MDOC_Enum, 132 MDOC_Tag, 133 MDOC_Diag, 134 MDOC_Hang, 135 MDOC_Ohang, 136 MDOC_Inset, 137 MDOC_Column, 138 MDOC_Width, 139 MDOC_Offset, 140 MDOC_Compact, 141 MDOC_Nested, 142 MDOC_ARG_MAX 143 }; 144 145 static const struct mdocarg mdocargs[MDOC_MAX] = { 146 { ARGSFL_DELIM, NULL }, /* Ap */ 147 { ARGSFL_NONE, NULL }, /* Dd */ 148 { ARGSFL_NONE, NULL }, /* Dt */ 149 { ARGSFL_NONE, NULL }, /* Os */ 150 { ARGSFL_NONE, NULL }, /* Sh */ 151 { ARGSFL_NONE, NULL }, /* Ss */ 152 { ARGSFL_NONE, NULL }, /* Pp */ 153 { ARGSFL_DELIM, NULL }, /* D1 */ 154 { ARGSFL_DELIM, NULL }, /* Dl */ 155 { ARGSFL_NONE, args_Bd }, /* Bd */ 156 { ARGSFL_NONE, NULL }, /* Ed */ 157 { ARGSFL_NONE, args_Bl }, /* Bl */ 158 { ARGSFL_NONE, NULL }, /* El */ 159 { ARGSFL_NONE, NULL }, /* It */ 160 { ARGSFL_DELIM, NULL }, /* Ad */ 161 { ARGSFL_DELIM, args_An }, /* An */ 162 { ARGSFL_DELIM, NULL }, /* Ar */ 163 { ARGSFL_DELIM, NULL }, /* Cd */ 164 { ARGSFL_DELIM, NULL }, /* Cm */ 165 { ARGSFL_DELIM, NULL }, /* Dv */ 166 { ARGSFL_DELIM, NULL }, /* Er */ 167 { ARGSFL_DELIM, NULL }, /* Ev */ 168 { ARGSFL_NONE, args_Ex }, /* Ex */ 169 { ARGSFL_DELIM, NULL }, /* Fa */ 170 { ARGSFL_NONE, NULL }, /* Fd */ 171 { ARGSFL_DELIM, NULL }, /* Fl */ 172 { ARGSFL_DELIM, NULL }, /* Fn */ 173 { ARGSFL_DELIM, NULL }, /* Ft */ 174 { ARGSFL_DELIM, NULL }, /* Ic */ 175 { ARGSFL_DELIM, NULL }, /* In */ 176 { ARGSFL_DELIM, NULL }, /* Li */ 177 { ARGSFL_NONE, NULL }, /* Nd */ 178 { ARGSFL_DELIM, NULL }, /* Nm */ 179 { ARGSFL_DELIM, NULL }, /* Op */ 180 { ARGSFL_DELIM, NULL }, /* Ot */ 181 { ARGSFL_DELIM, NULL }, /* Pa */ 182 { ARGSFL_NONE, args_Ex }, /* Rv */ 183 { ARGSFL_DELIM, NULL }, /* St */ 184 { ARGSFL_DELIM, NULL }, /* Va */ 185 { ARGSFL_DELIM, NULL }, /* Vt */ 186 { ARGSFL_DELIM, NULL }, /* Xr */ 187 { ARGSFL_NONE, NULL }, /* %A */ 188 { ARGSFL_NONE, NULL }, /* %B */ 189 { ARGSFL_NONE, NULL }, /* %D */ 190 { ARGSFL_NONE, NULL }, /* %I */ 191 { ARGSFL_NONE, NULL }, /* %J */ 192 { ARGSFL_NONE, NULL }, /* %N */ 193 { ARGSFL_NONE, NULL }, /* %O */ 194 { ARGSFL_NONE, NULL }, /* %P */ 195 { ARGSFL_NONE, NULL }, /* %R */ 196 { ARGSFL_NONE, NULL }, /* %T */ 197 { ARGSFL_NONE, NULL }, /* %V */ 198 { ARGSFL_DELIM, NULL }, /* Ac */ 199 { ARGSFL_NONE, NULL }, /* Ao */ 200 { ARGSFL_DELIM, NULL }, /* Aq */ 201 { ARGSFL_DELIM, NULL }, /* At */ 202 { ARGSFL_DELIM, NULL }, /* Bc */ 203 { ARGSFL_NONE, args_Bf }, /* Bf */ 204 { ARGSFL_NONE, NULL }, /* Bo */ 205 { ARGSFL_DELIM, NULL }, /* Bq */ 206 { ARGSFL_DELIM, NULL }, /* Bsx */ 207 { ARGSFL_DELIM, NULL }, /* Bx */ 208 { ARGSFL_NONE, NULL }, /* Db */ 209 { ARGSFL_DELIM, NULL }, /* Dc */ 210 { ARGSFL_NONE, NULL }, /* Do */ 211 { ARGSFL_DELIM, NULL }, /* Dq */ 212 { ARGSFL_DELIM, NULL }, /* Ec */ 213 { ARGSFL_NONE, NULL }, /* Ef */ 214 { ARGSFL_DELIM, NULL }, /* Em */ 215 { ARGSFL_NONE, NULL }, /* Eo */ 216 { ARGSFL_DELIM, NULL }, /* Fx */ 217 { ARGSFL_DELIM, NULL }, /* Ms */ 218 { ARGSFL_DELIM, NULL }, /* No */ 219 { ARGSFL_DELIM, NULL }, /* Ns */ 220 { ARGSFL_DELIM, NULL }, /* Nx */ 221 { ARGSFL_DELIM, NULL }, /* Ox */ 222 { ARGSFL_DELIM, NULL }, /* Pc */ 223 { ARGSFL_DELIM, NULL }, /* Pf */ 224 { ARGSFL_NONE, NULL }, /* Po */ 225 { ARGSFL_DELIM, NULL }, /* Pq */ 226 { ARGSFL_DELIM, NULL }, /* Qc */ 227 { ARGSFL_DELIM, NULL }, /* Ql */ 228 { ARGSFL_NONE, NULL }, /* Qo */ 229 { ARGSFL_DELIM, NULL }, /* Qq */ 230 { ARGSFL_NONE, NULL }, /* Re */ 231 { ARGSFL_NONE, NULL }, /* Rs */ 232 { ARGSFL_DELIM, NULL }, /* Sc */ 233 { ARGSFL_NONE, NULL }, /* So */ 234 { ARGSFL_DELIM, NULL }, /* Sq */ 235 { ARGSFL_NONE, NULL }, /* Sm */ 236 { ARGSFL_DELIM, NULL }, /* Sx */ 237 { ARGSFL_DELIM, NULL }, /* Sy */ 238 { ARGSFL_DELIM, NULL }, /* Tn */ 239 { ARGSFL_DELIM, NULL }, /* Ux */ 240 { ARGSFL_DELIM, NULL }, /* Xc */ 241 { ARGSFL_NONE, NULL }, /* Xo */ 242 { ARGSFL_NONE, NULL }, /* Fo */ 243 { ARGSFL_DELIM, NULL }, /* Fc */ 244 { ARGSFL_NONE, NULL }, /* Oo */ 245 { ARGSFL_DELIM, NULL }, /* Oc */ 246 { ARGSFL_NONE, args_Bk }, /* Bk */ 247 { ARGSFL_NONE, NULL }, /* Ek */ 248 { ARGSFL_NONE, NULL }, /* Bt */ 249 { ARGSFL_NONE, NULL }, /* Hf */ 250 { ARGSFL_DELIM, NULL }, /* Fr */ 251 { ARGSFL_NONE, NULL }, /* Ud */ 252 { ARGSFL_DELIM, NULL }, /* Lb */ 253 { ARGSFL_NONE, NULL }, /* Lp */ 254 { ARGSFL_DELIM, NULL }, /* Lk */ 255 { ARGSFL_DELIM, NULL }, /* Mt */ 256 { ARGSFL_DELIM, NULL }, /* Brq */ 257 { ARGSFL_NONE, NULL }, /* Bro */ 258 { ARGSFL_DELIM, NULL }, /* Brc */ 259 { ARGSFL_NONE, NULL }, /* %C */ 260 { ARGSFL_NONE, NULL }, /* Es */ 261 { ARGSFL_DELIM, NULL }, /* En */ 262 { ARGSFL_DELIM, NULL }, /* Dx */ 263 { ARGSFL_NONE, NULL }, /* %Q */ 264 { ARGSFL_NONE, NULL }, /* br */ 265 { ARGSFL_NONE, NULL }, /* sp */ 266 { ARGSFL_NONE, NULL }, /* %U */ 267 { ARGSFL_NONE, NULL }, /* Ta */ 268 { ARGSFL_NONE, NULL }, /* ll */ 269 }; 270 271 272 /* 273 * Parse flags and their arguments from the input line. 274 * These come in the form -flag [argument ...]. 275 * Some flags take no argument, some one, some multiple. 276 */ 277 void 278 mdoc_argv(struct roff_man *mdoc, int line, int tok, 279 struct mdoc_arg **reta, int *pos, char *buf) 280 { 281 struct mdoc_argv tmpv; 282 struct mdoc_argv **retv; 283 const enum mdocargt *argtable; 284 char *argname; 285 int ipos, retc; 286 char savechar; 287 288 *reta = NULL; 289 290 /* Which flags does this macro support? */ 291 292 argtable = mdocargs[tok].argvs; 293 if (argtable == NULL) 294 return; 295 296 /* Loop over the flags on the input line. */ 297 298 ipos = *pos; 299 while (buf[ipos] == '-') { 300 301 /* Seek to the first unescaped space. */ 302 303 for (argname = buf + ++ipos; buf[ipos] != '\0'; ipos++) 304 if (buf[ipos] == ' ' && buf[ipos - 1] != '\\') 305 break; 306 307 /* 308 * We want to nil-terminate the word to look it up. 309 * But we may not have a flag, in which case we need 310 * to restore the line as-is. So keep around the 311 * stray byte, which we'll reset upon exiting. 312 */ 313 314 if ((savechar = buf[ipos]) != '\0') 315 buf[ipos++] = '\0'; 316 317 /* 318 * Now look up the word as a flag. Use temporary 319 * storage that we'll copy into the node's flags. 320 */ 321 322 while ((tmpv.arg = *argtable++) != MDOC_ARG_MAX) 323 if ( ! strcmp(argname, mdoc_argnames[tmpv.arg])) 324 break; 325 326 /* If it isn't a flag, restore the saved byte. */ 327 328 if (tmpv.arg == MDOC_ARG_MAX) { 329 if (savechar != '\0') 330 buf[ipos - 1] = savechar; 331 break; 332 } 333 334 /* Read to the next word (the first argument). */ 335 336 while (buf[ipos] == ' ') 337 ipos++; 338 339 /* Parse the arguments of the flag. */ 340 341 tmpv.line = line; 342 tmpv.pos = *pos; 343 tmpv.sz = 0; 344 tmpv.value = NULL; 345 346 switch (argvflags[tmpv.arg]) { 347 case ARGV_SINGLE: 348 argv_single(mdoc, line, &tmpv, &ipos, buf); 349 break; 350 case ARGV_MULTI: 351 argv_multi(mdoc, line, &tmpv, &ipos, buf); 352 break; 353 case ARGV_NONE: 354 break; 355 } 356 357 /* Append to the return values. */ 358 359 if (*reta == NULL) 360 *reta = mandoc_calloc(1, sizeof(**reta)); 361 362 retc = ++(*reta)->argc; 363 retv = &(*reta)->argv; 364 *retv = mandoc_reallocarray(*retv, retc, sizeof(**retv)); 365 memcpy(*retv + retc - 1, &tmpv, sizeof(**retv)); 366 367 /* Prepare for parsing the next flag. */ 368 369 *pos = ipos; 370 argtable = mdocargs[tok].argvs; 371 } 372 } 373 374 void 375 mdoc_argv_free(struct mdoc_arg *p) 376 { 377 int i; 378 379 if (NULL == p) 380 return; 381 382 if (p->refcnt) { 383 --(p->refcnt); 384 if (p->refcnt) 385 return; 386 } 387 assert(p->argc); 388 389 for (i = (int)p->argc - 1; i >= 0; i--) 390 argn_free(p, i); 391 392 free(p->argv); 393 free(p); 394 } 395 396 static void 397 argn_free(struct mdoc_arg *p, int iarg) 398 { 399 struct mdoc_argv *arg; 400 int j; 401 402 arg = &p->argv[iarg]; 403 404 if (arg->sz && arg->value) { 405 for (j = (int)arg->sz - 1; j >= 0; j--) 406 free(arg->value[j]); 407 free(arg->value); 408 } 409 410 for (--p->argc; iarg < (int)p->argc; iarg++) 411 p->argv[iarg] = p->argv[iarg+1]; 412 } 413 414 enum margserr 415 mdoc_args(struct roff_man *mdoc, int line, int *pos, 416 char *buf, int tok, char **v) 417 { 418 struct roff_node *n; 419 char *v_local; 420 enum argsflag fl; 421 422 if (v == NULL) 423 v = &v_local; 424 fl = tok == TOKEN_NONE ? ARGSFL_NONE : mdocargs[tok].flags; 425 426 /* 427 * We know that we're in an `It', so it's reasonable to expect 428 * us to be sitting in a `Bl'. Someday this may not be the case 429 * (if we allow random `It's sitting out there), so provide a 430 * safe fall-back into the default behaviour. 431 */ 432 433 if (tok == MDOC_It) { 434 for (n = mdoc->last; n != NULL; n = n->parent) { 435 if (n->tok != MDOC_Bl) 436 continue; 437 if (n->norm->Bl.type == LIST_column) 438 fl = ARGSFL_TABSEP; 439 break; 440 } 441 } 442 443 return args(mdoc, line, pos, buf, fl, v); 444 } 445 446 static enum margserr 447 args(struct roff_man *mdoc, int line, int *pos, 448 char *buf, enum argsflag fl, char **v) 449 { 450 char *p; 451 int pairs; 452 453 if (buf[*pos] == '\0') { 454 if (mdoc->flags & MDOC_PHRASELIT && 455 ! (mdoc->flags & MDOC_PHRASE)) { 456 mandoc_msg(MANDOCERR_ARG_QUOTE, 457 mdoc->parse, line, *pos, NULL); 458 mdoc->flags &= ~MDOC_PHRASELIT; 459 } 460 return ARGS_EOLN; 461 } 462 463 *v = buf + *pos; 464 465 if (fl == ARGSFL_DELIM && args_checkpunct(buf, *pos)) 466 return ARGS_PUNCT; 467 468 /* 469 * Tabs in `It' lines in `Bl -column' can't be escaped. 470 * Phrases are reparsed for `Ta' and other macros later. 471 */ 472 473 if (fl == ARGSFL_TABSEP) { 474 if ((p = strchr(*v, '\t')) != NULL) { 475 476 /* 477 * Words right before and right after 478 * tab characters are not parsed, 479 * unless there is a blank in between. 480 */ 481 482 if (p > buf && p[-1] != ' ') 483 mdoc->flags |= MDOC_PHRASEQL; 484 if (p[1] != ' ') 485 mdoc->flags |= MDOC_PHRASEQN; 486 487 /* 488 * One or more blanks after a tab cause 489 * one leading blank in the next column. 490 * So skip all but one of them. 491 */ 492 493 *pos += (int)(p - *v) + 1; 494 while (buf[*pos] == ' ' && buf[*pos + 1] == ' ') 495 (*pos)++; 496 497 /* 498 * A tab at the end of an input line 499 * switches to the next column. 500 */ 501 502 if (buf[*pos] == '\0' || buf[*pos + 1] == '\0') 503 mdoc->flags |= MDOC_PHRASEQN; 504 } else { 505 p = strchr(*v, '\0'); 506 if (p[-1] == ' ') 507 mandoc_msg(MANDOCERR_SPACE_EOL, 508 mdoc->parse, line, *pos, NULL); 509 *pos += (int)(p - *v); 510 } 511 512 /* Skip any trailing blank characters. */ 513 while (p > *v && p[-1] == ' ' && 514 (p - 1 == *v || p[-2] != '\\')) 515 p--; 516 *p = '\0'; 517 518 return ARGS_PHRASE; 519 } 520 521 /* 522 * Process a quoted literal. A quote begins with a double-quote 523 * and ends with a double-quote NOT preceded by a double-quote. 524 * NUL-terminate the literal in place. 525 * Collapse pairs of quotes inside quoted literals. 526 * Whitespace is NOT involved in literal termination. 527 */ 528 529 if (mdoc->flags & MDOC_PHRASELIT || buf[*pos] == '\"') { 530 if ( ! (mdoc->flags & MDOC_PHRASELIT)) 531 *v = &buf[++(*pos)]; 532 533 if (mdoc->flags & MDOC_PHRASE) 534 mdoc->flags |= MDOC_PHRASELIT; 535 536 pairs = 0; 537 for ( ; buf[*pos]; (*pos)++) { 538 /* Move following text left after quoted quotes. */ 539 if (pairs) 540 buf[*pos - pairs] = buf[*pos]; 541 if ('\"' != buf[*pos]) 542 continue; 543 /* Unquoted quotes end quoted args. */ 544 if ('\"' != buf[*pos + 1]) 545 break; 546 /* Quoted quotes collapse. */ 547 pairs++; 548 (*pos)++; 549 } 550 if (pairs) 551 buf[*pos - pairs] = '\0'; 552 553 if (buf[*pos] == '\0') { 554 if ( ! (mdoc->flags & MDOC_PHRASE)) 555 mandoc_msg(MANDOCERR_ARG_QUOTE, 556 mdoc->parse, line, *pos, NULL); 557 return ARGS_QWORD; 558 } 559 560 mdoc->flags &= ~MDOC_PHRASELIT; 561 buf[(*pos)++] = '\0'; 562 563 if ('\0' == buf[*pos]) 564 return ARGS_QWORD; 565 566 while (' ' == buf[*pos]) 567 (*pos)++; 568 569 if ('\0' == buf[*pos]) 570 mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse, 571 line, *pos, NULL); 572 573 return ARGS_QWORD; 574 } 575 576 p = &buf[*pos]; 577 *v = mandoc_getarg(mdoc->parse, &p, line, pos); 578 579 /* 580 * After parsing the last word in this phrase, 581 * tell lookup() whether or not to interpret it. 582 */ 583 584 if (*p == '\0' && mdoc->flags & MDOC_PHRASEQL) { 585 mdoc->flags &= ~MDOC_PHRASEQL; 586 mdoc->flags |= MDOC_PHRASEQF; 587 } 588 return ARGS_WORD; 589 } 590 591 /* 592 * Check if the string consists only of space-separated closing 593 * delimiters. This is a bit of a dance: the first must be a close 594 * delimiter, but it may be followed by middle delimiters. Arbitrary 595 * whitespace may separate these tokens. 596 */ 597 static int 598 args_checkpunct(const char *buf, int i) 599 { 600 int j; 601 char dbuf[DELIMSZ]; 602 enum mdelim d; 603 604 /* First token must be a close-delimiter. */ 605 606 for (j = 0; buf[i] && ' ' != buf[i] && j < DELIMSZ; j++, i++) 607 dbuf[j] = buf[i]; 608 609 if (DELIMSZ == j) 610 return 0; 611 612 dbuf[j] = '\0'; 613 if (DELIM_CLOSE != mdoc_isdelim(dbuf)) 614 return 0; 615 616 while (' ' == buf[i]) 617 i++; 618 619 /* Remaining must NOT be open/none. */ 620 621 while (buf[i]) { 622 j = 0; 623 while (buf[i] && ' ' != buf[i] && j < DELIMSZ) 624 dbuf[j++] = buf[i++]; 625 626 if (DELIMSZ == j) 627 return 0; 628 629 dbuf[j] = '\0'; 630 d = mdoc_isdelim(dbuf); 631 if (DELIM_NONE == d || DELIM_OPEN == d) 632 return 0; 633 634 while (' ' == buf[i]) 635 i++; 636 } 637 638 return '\0' == buf[i]; 639 } 640 641 static void 642 argv_multi(struct roff_man *mdoc, int line, 643 struct mdoc_argv *v, int *pos, char *buf) 644 { 645 enum margserr ac; 646 char *p; 647 648 for (v->sz = 0; ; v->sz++) { 649 if (buf[*pos] == '-') 650 break; 651 ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p); 652 if (ac == ARGS_EOLN) 653 break; 654 655 if (v->sz % MULTI_STEP == 0) 656 v->value = mandoc_reallocarray(v->value, 657 v->sz + MULTI_STEP, sizeof(char *)); 658 659 v->value[(int)v->sz] = mandoc_strdup(p); 660 } 661 } 662 663 static void 664 argv_single(struct roff_man *mdoc, int line, 665 struct mdoc_argv *v, int *pos, char *buf) 666 { 667 enum margserr ac; 668 char *p; 669 670 ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p); 671 if (ac == ARGS_EOLN) 672 return; 673 674 v->sz = 1; 675 v->value = mandoc_malloc(sizeof(char *)); 676 v->value[0] = mandoc_strdup(p); 677 } 678