Annotation of src/usr.bin/mandoc/mdoc_argv.c, Revision 1.24
1.24 ! schwarze 1: /* $Id: mdoc_argv.c,v 1.23 2010/04/03 16:30:42 schwarze Exp $ */
1.1 kristaps 2: /*
1.2 schwarze 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 8: *
1.2 schwarze 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.
1.1 kristaps 16: */
17: #include <sys/types.h>
18:
19: #include <assert.h>
20: #include <ctype.h>
21: #include <stdlib.h>
22: #include <stdio.h>
23: #include <string.h>
24:
25: #include "libmdoc.h"
1.19 schwarze 26: #include "libmandoc.h"
1.1 kristaps 27:
28: /*
29: * Routines to parse arguments of macros. Arguments follow the syntax
30: * of `-arg [val [valN...]]'. Arguments come in all types: quoted
31: * arguments, multiple arguments per value, no-value arguments, etc.
32: *
33: * There's no limit to the number or arguments that may be allocated.
34: */
35:
36: #define ARGV_NONE (1 << 0)
37: #define ARGV_SINGLE (1 << 1)
38: #define ARGV_MULTI (1 << 2)
39: #define ARGV_OPT_SINGLE (1 << 3)
40:
41: #define MULTI_STEP 5
42:
1.22 schwarze 43: static int argv_a2arg(enum mdoct, const char *);
1.24 ! schwarze 44: static enum margserr args(struct mdoc *, int, int *,
1.1 kristaps 45: char *, int, char **);
46: static int argv(struct mdoc *, int,
47: struct mdoc_argv *, int *, char *);
48: static int argv_single(struct mdoc *, int,
49: struct mdoc_argv *, int *, char *);
50: static int argv_opt_single(struct mdoc *, int,
51: struct mdoc_argv *, int *, char *);
52: static int argv_multi(struct mdoc *, int,
53: struct mdoc_argv *, int *, char *);
54:
55: /* Per-argument flags. */
56:
57: static int mdoc_argvflags[MDOC_ARG_MAX] = {
58: ARGV_NONE, /* MDOC_Split */
59: ARGV_NONE, /* MDOC_Nosplit */
60: ARGV_NONE, /* MDOC_Ragged */
61: ARGV_NONE, /* MDOC_Unfilled */
62: ARGV_NONE, /* MDOC_Literal */
1.17 schwarze 63: ARGV_SINGLE, /* MDOC_File */
1.15 schwarze 64: ARGV_OPT_SINGLE, /* MDOC_Offset */
1.1 kristaps 65: ARGV_NONE, /* MDOC_Bullet */
66: ARGV_NONE, /* MDOC_Dash */
67: ARGV_NONE, /* MDOC_Hyphen */
68: ARGV_NONE, /* MDOC_Item */
69: ARGV_NONE, /* MDOC_Enum */
70: ARGV_NONE, /* MDOC_Tag */
71: ARGV_NONE, /* MDOC_Diag */
72: ARGV_NONE, /* MDOC_Hang */
73: ARGV_NONE, /* MDOC_Ohang */
74: ARGV_NONE, /* MDOC_Inset */
75: ARGV_MULTI, /* MDOC_Column */
76: ARGV_SINGLE, /* MDOC_Width */
77: ARGV_NONE, /* MDOC_Compact */
1.14 schwarze 78: ARGV_NONE, /* MDOC_Std */
1.1 kristaps 79: ARGV_NONE, /* MDOC_Filled */
80: ARGV_NONE, /* MDOC_Words */
81: ARGV_NONE, /* MDOC_Emphasis */
82: ARGV_NONE, /* MDOC_Symbolic */
83: ARGV_NONE /* MDOC_Symbolic */
84: };
85:
86: static int mdoc_argflags[MDOC_MAX] = {
1.3 schwarze 87: 0, /* Ap */
1.1 kristaps 88: 0, /* Dd */
89: 0, /* Dt */
90: 0, /* Os */
1.12 schwarze 91: 0, /* Sh */
92: 0, /* Ss */
1.1 kristaps 93: ARGS_DELIM, /* Pp */
94: ARGS_DELIM, /* D1 */
1.12 schwarze 95: ARGS_DELIM, /* Dl */
1.1 kristaps 96: 0, /* Bd */
97: 0, /* Ed */
1.12 schwarze 98: 0, /* Bl */
1.1 kristaps 99: 0, /* El */
100: 0, /* It */
101: ARGS_DELIM, /* Ad */
102: ARGS_DELIM, /* An */
1.12 schwarze 103: ARGS_DELIM, /* Ar */
104: 0, /* Cd */
1.1 kristaps 105: ARGS_DELIM, /* Cm */
106: ARGS_DELIM, /* Dv */
107: ARGS_DELIM, /* Er */
108: ARGS_DELIM, /* Ev */
109: 0, /* Ex */
1.12 schwarze 110: ARGS_DELIM, /* Fa */
1.1 kristaps 111: 0, /* Fd */
112: ARGS_DELIM, /* Fl */
1.12 schwarze 113: ARGS_DELIM, /* Fn */
114: ARGS_DELIM, /* Ft */
1.1 kristaps 115: ARGS_DELIM, /* Ic */
116: 0, /* In */
1.12 schwarze 117: ARGS_DELIM, /* Li */
118: 0, /* Nd */
1.1 kristaps 119: ARGS_DELIM, /* Nm */
120: ARGS_DELIM, /* Op */
121: 0, /* Ot */
122: ARGS_DELIM, /* Pa */
123: 0, /* Rv */
1.12 schwarze 124: ARGS_DELIM, /* St */
1.1 kristaps 125: ARGS_DELIM, /* Va */
126: ARGS_DELIM, /* Vt */
127: ARGS_DELIM, /* Xr */
1.12 schwarze 128: 0, /* %A */
129: 0, /* %B */
130: 0, /* %D */
131: 0, /* %I */
132: 0, /* %J */
133: 0, /* %N */
134: 0, /* %O */
135: 0, /* %P */
136: 0, /* %R */
137: 0, /* %T */
138: 0, /* %V */
1.1 kristaps 139: ARGS_DELIM, /* Ac */
140: 0, /* Ao */
141: ARGS_DELIM, /* Aq */
142: ARGS_DELIM, /* At */
143: ARGS_DELIM, /* Bc */
144: 0, /* Bf */
145: 0, /* Bo */
146: ARGS_DELIM, /* Bq */
147: ARGS_DELIM, /* Bsx */
148: ARGS_DELIM, /* Bx */
149: 0, /* Db */
150: ARGS_DELIM, /* Dc */
151: 0, /* Do */
152: ARGS_DELIM, /* Dq */
153: ARGS_DELIM, /* Ec */
154: 0, /* Ef */
155: ARGS_DELIM, /* Em */
156: 0, /* Eo */
157: ARGS_DELIM, /* Fx */
158: ARGS_DELIM, /* Ms */
159: ARGS_DELIM, /* No */
160: ARGS_DELIM, /* Ns */
161: ARGS_DELIM, /* Nx */
162: ARGS_DELIM, /* Ox */
163: ARGS_DELIM, /* Pc */
164: ARGS_DELIM, /* Pf */
165: 0, /* Po */
166: ARGS_DELIM, /* Pq */
167: ARGS_DELIM, /* Qc */
168: ARGS_DELIM, /* Ql */
169: 0, /* Qo */
170: ARGS_DELIM, /* Qq */
171: 0, /* Re */
172: 0, /* Rs */
173: ARGS_DELIM, /* Sc */
174: 0, /* So */
175: ARGS_DELIM, /* Sq */
176: 0, /* Sm */
177: ARGS_DELIM, /* Sx */
1.12 schwarze 178: ARGS_DELIM, /* Sy */
1.1 kristaps 179: ARGS_DELIM, /* Tn */
180: ARGS_DELIM, /* Ux */
181: ARGS_DELIM, /* Xc */
182: 0, /* Xo */
1.12 schwarze 183: 0, /* Fo */
1.1 kristaps 184: 0, /* Fc */
185: 0, /* Oo */
186: ARGS_DELIM, /* Oc */
187: 0, /* Bk */
188: 0, /* Ek */
189: 0, /* Bt */
190: 0, /* Hf */
191: 0, /* Fr */
192: 0, /* Ud */
193: 0, /* Lb */
194: ARGS_DELIM, /* Lp */
1.12 schwarze 195: ARGS_DELIM, /* Lk */
196: ARGS_DELIM, /* Mt */
1.1 kristaps 197: ARGS_DELIM, /* Brq */
198: 0, /* Bro */
199: ARGS_DELIM, /* Brc */
1.12 schwarze 200: 0, /* %C */
1.1 kristaps 201: 0, /* Es */
202: 0, /* En */
203: 0, /* Dx */
1.12 schwarze 204: 0, /* %Q */
1.10 schwarze 205: 0, /* br */
206: 0, /* sp */
1.18 schwarze 207: 0, /* %U */
1.21 schwarze 208: 0, /* eos */
1.1 kristaps 209: };
210:
211:
212: /*
213: * Parse an argument from line text. This comes in the form of -key
214: * [value0...], which may either have a single mandatory value, at least
215: * one mandatory value, an optional single value, or no value.
216: */
1.24 ! schwarze 217: enum margverr
1.22 schwarze 218: mdoc_argv(struct mdoc *m, int line, enum mdoct tok,
1.1 kristaps 219: struct mdoc_arg **v, int *pos, char *buf)
220: {
221: char *p, sv;
222: struct mdoc_argv tmp;
223: struct mdoc_arg *arg;
224:
225: if (0 == buf[*pos])
226: return(ARGV_EOLN);
227:
228: assert(' ' != buf[*pos]);
229:
230: /* Parse through to the first unescaped space. */
231:
232: p = &buf[++(*pos)];
233:
234: assert(*pos > 0);
235:
236: /* LINTED */
237: while (buf[*pos]) {
238: if (' ' == buf[*pos])
239: if ('\\' != buf[*pos - 1])
240: break;
241: (*pos)++;
242: }
243:
244: /* XXX - save zeroed byte, if not an argument. */
245:
246: sv = 0;
247: if (buf[*pos]) {
248: sv = buf[*pos];
249: buf[(*pos)++] = 0;
250: }
251:
252: (void)memset(&tmp, 0, sizeof(struct mdoc_argv));
253: tmp.line = line;
254: tmp.pos = *pos;
255:
256: /* See if our token accepts the argument. */
257:
258: if (MDOC_ARG_MAX == (tmp.arg = argv_a2arg(tok, p))) {
259: /* XXX - restore saved zeroed byte. */
260: if (sv)
261: buf[*pos - 1] = sv;
262: return(ARGV_WORD);
263: }
264:
265: while (buf[*pos] && ' ' == buf[*pos])
266: (*pos)++;
267:
1.6 schwarze 268: if ( ! argv(m, line, &tmp, pos, buf))
1.1 kristaps 269: return(ARGV_ERROR);
270:
1.19 schwarze 271: if (NULL == (arg = *v))
272: arg = *v = mandoc_calloc(1, sizeof(struct mdoc_arg));
1.1 kristaps 273:
274: arg->argc++;
1.19 schwarze 275: arg->argv = mandoc_realloc
276: (arg->argv, arg->argc * sizeof(struct mdoc_argv));
1.1 kristaps 277:
278: (void)memcpy(&arg->argv[(int)arg->argc - 1],
279: &tmp, sizeof(struct mdoc_argv));
280:
281: return(ARGV_ARG);
282: }
283:
284:
285: void
286: mdoc_argv_free(struct mdoc_arg *p)
287: {
1.23 schwarze 288: int i;
1.1 kristaps 289:
290: if (NULL == p)
291: return;
292:
293: if (p->refcnt) {
294: --(p->refcnt);
295: if (p->refcnt)
296: return;
297: }
298: assert(p->argc);
299:
1.24 ! schwarze 300: for (i = (int)p->argc - 1; i >= 0; i--)
1.23 schwarze 301: mdoc_argn_free(p, i);
302:
303: free(p->argv);
304: free(p);
305: }
306:
307:
308: void
309: mdoc_argn_free(struct mdoc_arg *p, int iarg)
310: {
311: struct mdoc_argv *arg = &p->argv[iarg];
312: int j;
1.1 kristaps 313:
1.23 schwarze 314: if (arg->sz && arg->value) {
1.24 ! schwarze 315: for (j = (int)arg->sz - 1; j >= 0; j--)
1.23 schwarze 316: free(arg->value[j]);
317: free(arg->value);
1.1 kristaps 318: }
319:
1.23 schwarze 320: for (--p->argc; iarg < (int)p->argc; iarg++)
321: p->argv[iarg] = p->argv[iarg+1];
1.1 kristaps 322: }
323:
324:
1.24 ! schwarze 325: enum margserr
1.13 schwarze 326: mdoc_zargs(struct mdoc *m, int line, int *pos,
327: char *buf, int flags, char **v)
1.12 schwarze 328: {
329:
1.13 schwarze 330: return(args(m, line, pos, buf, flags, v));
1.12 schwarze 331: }
332:
333:
1.24 ! schwarze 334: enum margserr
1.22 schwarze 335: mdoc_args(struct mdoc *m, int line, int *pos,
336: char *buf, enum mdoct tok, char **v)
1.1 kristaps 337: {
338: int fl, c, i;
339: struct mdoc_node *n;
340:
1.22 schwarze 341: fl = mdoc_argflags[tok];
1.1 kristaps 342:
1.12 schwarze 343: if (MDOC_It != tok)
344: return(args(m, line, pos, buf, fl, v));
345:
1.1 kristaps 346: /*
1.12 schwarze 347: * The `It' macro is a special case, as it acquires parameters from its
348: * parent `Bl' context, specifically, we're concerned with -column.
1.1 kristaps 349: */
350:
1.12 schwarze 351: for (n = m->last; n; n = n->parent)
352: if (MDOC_BLOCK == n->type && MDOC_Bl == n->tok)
353: break;
1.1 kristaps 354:
1.12 schwarze 355: assert(n);
356: c = (int)(n->args ? n->args->argc : 0);
357: assert(c > 0);
1.1 kristaps 358:
1.12 schwarze 359: /* LINTED */
360: for (i = 0; i < c; i++) {
361: if (MDOC_Column != n->args->argv[i].arg)
362: continue;
363: fl |= ARGS_TABSEP;
364: fl &= ~ARGS_DELIM;
1.1 kristaps 365: break;
366: }
367:
1.8 schwarze 368: return(args(m, line, pos, buf, fl, v));
1.1 kristaps 369: }
370:
371:
1.24 ! schwarze 372: static enum margserr
1.12 schwarze 373: args(struct mdoc *m, int line, int *pos,
1.11 schwarze 374: char *buf, int fl, char **v)
1.1 kristaps 375: {
376: int i;
377: char *p, *pp;
1.24 ! schwarze 378: enum margserr rc;
1.1 kristaps 379:
1.13 schwarze 380: /*
381: * Parse out the terms (like `val' in `.Xx -arg val' or simply
382: * `.Xx val'), which can have all sorts of properties:
383: *
384: * ARGS_DELIM: use special handling if encountering trailing
385: * delimiters in the form of [[::delim::][ ]+]+.
386: *
387: * ARGS_NOWARN: don't post warnings. This is only used when
388: * re-parsing delimiters, as the warnings have already been
389: * posted.
390: *
391: * ARGS_TABSEP: use special handling for tab/`Ta' separated
392: * phrases like in `Bl -column'.
393: */
394:
1.12 schwarze 395: assert(*pos);
396: assert(' ' != buf[*pos]);
1.1 kristaps 397:
1.24 ! schwarze 398: if ('\0' == buf[*pos])
1.1 kristaps 399: return(ARGS_EOLN);
400:
401: /*
402: * If the first character is a delimiter and we're to look for
403: * delimited strings, then pass down the buffer seeing if it
404: * follows the pattern of [[::delim::][ ]+]+.
405: */
406:
1.20 schwarze 407: if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos]) > 1) {
1.1 kristaps 408: for (i = *pos; buf[i]; ) {
1.20 schwarze 409: if ( mdoc_iscdelim(buf[i]) < 2)
1.1 kristaps 410: break;
411: i++;
412: if (0 == buf[i] || ' ' != buf[i])
413: break;
414: i++;
415: while (buf[i] && ' ' == buf[i])
416: i++;
417: }
1.12 schwarze 418:
1.1 kristaps 419: if (0 == buf[i]) {
420: *v = &buf[*pos];
1.13 schwarze 421: if (' ' != buf[i - 1])
422: return(ARGS_PUNCT);
423: if (ARGS_NOWARN & fl)
424: return(ARGS_PUNCT);
425: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
426: return(ARGS_ERROR);
1.1 kristaps 427: return(ARGS_PUNCT);
428: }
429: }
430:
1.12 schwarze 431: *v = &buf[*pos];
1.1 kristaps 432:
1.12 schwarze 433: /*
434: * First handle TABSEP items, restricted to `Bl -column'. This
435: * ignores conventional token parsing and instead uses tabs or
436: * `Ta' macros to separate phrases. Phrases are parsed again
437: * for arguments at a later phase.
438: */
439:
440: if (ARGS_TABSEP & fl) {
441: /* Scan ahead to tab (can't be escaped). */
442: p = strchr(*v, '\t');
443:
444: /* Scan ahead to unescaped `Ta'. */
445: for (pp = *v; ; pp++) {
446: if (NULL == (pp = strstr(pp, "Ta")))
447: break;
448: if (pp > *v && ' ' != *(pp - 1))
449: continue;
450: if (' ' == *(pp + 2) || 0 == *(pp + 2))
451: break;
452: }
1.1 kristaps 453:
1.24 ! schwarze 454: /* By default, assume a phrase. */
! 455: rc = ARGS_PHRASE;
! 456:
1.1 kristaps 457: /*
1.12 schwarze 458: * Adjust new-buffer position to be beyond delimiter
459: * mark (e.g., Ta -> end + 2).
1.1 kristaps 460: */
1.12 schwarze 461: if (p && pp) {
462: *pos += pp < p ? 2 : 1;
1.24 ! schwarze 463: rc = pp < p ? ARGS_PHRASE : ARGS_PPHRASE;
1.12 schwarze 464: p = pp < p ? pp : p;
465: } else if (p && ! pp) {
1.24 ! schwarze 466: rc = ARGS_PPHRASE;
1.12 schwarze 467: *pos += 1;
468: } else if (pp && ! p) {
469: p = pp;
470: *pos += 2;
471: } else
472: p = strchr(*v, 0);
1.1 kristaps 473:
1.12 schwarze 474: /* Whitespace check for eoln case... */
1.13 schwarze 475: if (0 == *p && ' ' == *(p - 1) && ! (ARGS_NOWARN & fl))
1.12 schwarze 476: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
477: return(ARGS_ERROR);
478:
479: *pos += (int)(p - *v);
480:
481: /* Strip delimiter's preceding whitespace. */
482: pp = p - 1;
483: while (pp > *v && ' ' == *pp) {
484: if (pp > *v && '\\' == *(pp - 1))
485: break;
486: pp--;
487: }
488: *(pp + 1) = 0;
1.1 kristaps 489:
1.12 schwarze 490: /* Strip delimiter's proceeding whitespace. */
491: for (pp = &buf[*pos]; ' ' == *pp; pp++, (*pos)++)
492: /* Skip ahead. */ ;
1.1 kristaps 493:
1.24 ! schwarze 494: return(rc);
1.12 schwarze 495: }
1.1 kristaps 496:
1.12 schwarze 497: /*
498: * Process a quoted literal. A quote begins with a double-quote
499: * and ends with a double-quote NOT preceded by a double-quote.
500: * Whitespace is NOT involved in literal termination.
501: */
1.1 kristaps 502:
1.12 schwarze 503: if ('\"' == buf[*pos]) {
504: *v = &buf[++(*pos)];
1.1 kristaps 505:
1.12 schwarze 506: for ( ; buf[*pos]; (*pos)++) {
507: if ('\"' != buf[*pos])
508: continue;
509: if ('\"' != buf[*pos + 1])
510: break;
511: (*pos)++;
512: }
1.1 kristaps 513:
1.12 schwarze 514: if (0 == buf[*pos]) {
1.13 schwarze 515: if (ARGS_NOWARN & fl)
516: return(ARGS_QWORD);
1.12 schwarze 517: if ( ! mdoc_pwarn(m, line, *pos, EQUOTTERM))
518: return(ARGS_ERROR);
519: return(ARGS_QWORD);
520: }
1.1 kristaps 521:
1.12 schwarze 522: buf[(*pos)++] = 0;
1.1 kristaps 523:
524: if (0 == buf[*pos])
1.12 schwarze 525: return(ARGS_QWORD);
1.1 kristaps 526:
1.12 schwarze 527: while (' ' == buf[*pos])
528: (*pos)++;
1.1 kristaps 529:
1.13 schwarze 530: if (0 == buf[*pos] && ! (ARGS_NOWARN & fl))
1.12 schwarze 531: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
532: return(ARGS_ERROR);
1.1 kristaps 533:
1.12 schwarze 534: return(ARGS_QWORD);
1.1 kristaps 535: }
536:
1.12 schwarze 537: /*
538: * A non-quoted term progresses until either the end of line or
539: * a non-escaped whitespace.
1.1 kristaps 540: */
541:
1.12 schwarze 542: for ( ; buf[*pos]; (*pos)++)
543: if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
544: break;
1.1 kristaps 545:
1.12 schwarze 546: if (0 == buf[*pos])
547: return(ARGS_WORD);
1.1 kristaps 548:
549: buf[(*pos)++] = 0;
550:
1.12 schwarze 551: while (' ' == buf[*pos])
1.1 kristaps 552: (*pos)++;
553:
1.13 schwarze 554: if (0 == buf[*pos] && ! (ARGS_NOWARN & fl))
1.12 schwarze 555: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
556: return(ARGS_ERROR);
1.1 kristaps 557:
1.12 schwarze 558: return(ARGS_WORD);
1.1 kristaps 559: }
560:
561:
562: static int
1.22 schwarze 563: argv_a2arg(enum mdoct tok, const char *p)
1.1 kristaps 564: {
565:
566: /*
567: * Parse an argument identifier from its text. XXX - this
568: * should really be table-driven to clarify the code.
569: *
570: * If you add an argument to the list, make sure that you
571: * register it here with its one or more macros!
572: */
573:
574: switch (tok) {
575: case (MDOC_An):
1.16 schwarze 576: if (0 == strcmp(p, "split"))
1.1 kristaps 577: return(MDOC_Split);
1.16 schwarze 578: else if (0 == strcmp(p, "nosplit"))
1.1 kristaps 579: return(MDOC_Nosplit);
580: break;
581:
582: case (MDOC_Bd):
1.16 schwarze 583: if (0 == strcmp(p, "ragged"))
1.1 kristaps 584: return(MDOC_Ragged);
1.16 schwarze 585: else if (0 == strcmp(p, "unfilled"))
1.1 kristaps 586: return(MDOC_Unfilled);
1.16 schwarze 587: else if (0 == strcmp(p, "filled"))
1.1 kristaps 588: return(MDOC_Filled);
1.16 schwarze 589: else if (0 == strcmp(p, "literal"))
1.1 kristaps 590: return(MDOC_Literal);
1.16 schwarze 591: else if (0 == strcmp(p, "file"))
1.1 kristaps 592: return(MDOC_File);
1.16 schwarze 593: else if (0 == strcmp(p, "offset"))
1.1 kristaps 594: return(MDOC_Offset);
1.16 schwarze 595: else if (0 == strcmp(p, "compact"))
1.1 kristaps 596: return(MDOC_Compact);
1.17 schwarze 597: else if (0 == strcmp(p, "centered"))
598: return(MDOC_Centred);
1.1 kristaps 599: break;
600:
601: case (MDOC_Bf):
1.16 schwarze 602: if (0 == strcmp(p, "emphasis"))
1.1 kristaps 603: return(MDOC_Emphasis);
1.16 schwarze 604: else if (0 == strcmp(p, "literal"))
1.1 kristaps 605: return(MDOC_Literal);
1.16 schwarze 606: else if (0 == strcmp(p, "symbolic"))
1.1 kristaps 607: return(MDOC_Symbolic);
608: break;
609:
610: case (MDOC_Bk):
1.16 schwarze 611: if (0 == strcmp(p, "words"))
1.1 kristaps 612: return(MDOC_Words);
613: break;
614:
615: case (MDOC_Bl):
1.16 schwarze 616: if (0 == strcmp(p, "bullet"))
1.1 kristaps 617: return(MDOC_Bullet);
1.16 schwarze 618: else if (0 == strcmp(p, "dash"))
1.1 kristaps 619: return(MDOC_Dash);
1.16 schwarze 620: else if (0 == strcmp(p, "hyphen"))
1.1 kristaps 621: return(MDOC_Hyphen);
1.16 schwarze 622: else if (0 == strcmp(p, "item"))
1.1 kristaps 623: return(MDOC_Item);
1.16 schwarze 624: else if (0 == strcmp(p, "enum"))
1.1 kristaps 625: return(MDOC_Enum);
1.16 schwarze 626: else if (0 == strcmp(p, "tag"))
1.1 kristaps 627: return(MDOC_Tag);
1.16 schwarze 628: else if (0 == strcmp(p, "diag"))
1.1 kristaps 629: return(MDOC_Diag);
1.16 schwarze 630: else if (0 == strcmp(p, "hang"))
1.1 kristaps 631: return(MDOC_Hang);
1.16 schwarze 632: else if (0 == strcmp(p, "ohang"))
1.1 kristaps 633: return(MDOC_Ohang);
1.16 schwarze 634: else if (0 == strcmp(p, "inset"))
1.1 kristaps 635: return(MDOC_Inset);
1.16 schwarze 636: else if (0 == strcmp(p, "column"))
1.1 kristaps 637: return(MDOC_Column);
1.16 schwarze 638: else if (0 == strcmp(p, "width"))
1.1 kristaps 639: return(MDOC_Width);
1.16 schwarze 640: else if (0 == strcmp(p, "offset"))
1.1 kristaps 641: return(MDOC_Offset);
1.16 schwarze 642: else if (0 == strcmp(p, "compact"))
1.1 kristaps 643: return(MDOC_Compact);
1.16 schwarze 644: else if (0 == strcmp(p, "nested"))
1.1 kristaps 645: return(MDOC_Nested);
646: break;
647:
648: case (MDOC_Rv):
649: /* FALLTHROUGH */
650: case (MDOC_Ex):
1.16 schwarze 651: if (0 == strcmp(p, "std"))
1.1 kristaps 652: return(MDOC_Std);
653: break;
654: default:
655: break;
656: }
657:
658: return(MDOC_ARG_MAX);
659: }
660:
661:
662: static int
1.6 schwarze 663: argv_multi(struct mdoc *m, int line,
1.1 kristaps 664: struct mdoc_argv *v, int *pos, char *buf)
665: {
1.24 ! schwarze 666: enum margserr ac;
1.1 kristaps 667: char *p;
668:
669: for (v->sz = 0; ; v->sz++) {
670: if ('-' == buf[*pos])
671: break;
1.24 ! schwarze 672: ac = args(m, line, pos, buf, 0, &p);
! 673: if (ARGS_ERROR == ac)
1.1 kristaps 674: return(0);
1.24 ! schwarze 675: else if (ARGS_EOLN == ac)
1.1 kristaps 676: break;
677:
1.19 schwarze 678: if (0 == v->sz % MULTI_STEP)
679: v->value = mandoc_realloc(v->value,
1.1 kristaps 680: (v->sz + MULTI_STEP) * sizeof(char *));
1.19 schwarze 681:
682: v->value[(int)v->sz] = mandoc_strdup(p);
1.1 kristaps 683: }
684:
1.4 schwarze 685: return(1);
1.1 kristaps 686: }
687:
688:
689: static int
1.6 schwarze 690: argv_opt_single(struct mdoc *m, int line,
1.1 kristaps 691: struct mdoc_argv *v, int *pos, char *buf)
692: {
1.24 ! schwarze 693: enum margserr ac;
1.1 kristaps 694: char *p;
695:
696: if ('-' == buf[*pos])
697: return(1);
698:
1.24 ! schwarze 699: ac = args(m, line, pos, buf, 0, &p);
! 700: if (ARGS_ERROR == ac)
1.1 kristaps 701: return(0);
1.24 ! schwarze 702: if (ARGS_EOLN == ac)
1.1 kristaps 703: return(1);
704:
705: v->sz = 1;
1.19 schwarze 706: v->value = mandoc_malloc(sizeof(char *));
707: v->value[0] = mandoc_strdup(p);
1.1 kristaps 708:
709: return(1);
710: }
711:
712:
713: /*
714: * Parse a single, mandatory value from the stream.
715: */
716: static int
1.6 schwarze 717: argv_single(struct mdoc *m, int line,
1.1 kristaps 718: struct mdoc_argv *v, int *pos, char *buf)
719: {
1.24 ! schwarze 720: int ppos;
! 721: enum margserr ac;
1.1 kristaps 722: char *p;
723:
724: ppos = *pos;
725:
1.24 ! schwarze 726: ac = args(m, line, pos, buf, 0, &p);
! 727: if (ARGS_ERROR == ac)
1.1 kristaps 728: return(0);
1.24 ! schwarze 729: if (ARGS_EOLN == ac)
1.7 schwarze 730: return(mdoc_perr(m, line, ppos, EARGVAL));
1.1 kristaps 731:
732: v->sz = 1;
1.19 schwarze 733: v->value = mandoc_malloc(sizeof(char *));
734: v->value[0] = mandoc_strdup(p);
1.1 kristaps 735:
736: return(1);
737: }
738:
739:
740: /*
741: * Determine rules for parsing arguments. Arguments can either accept
742: * no parameters, an optional single parameter, one parameter, or
743: * multiple parameters.
744: */
745: static int
746: argv(struct mdoc *mdoc, int line,
747: struct mdoc_argv *v, int *pos, char *buf)
748: {
749:
750: v->sz = 0;
751: v->value = NULL;
752:
753: switch (mdoc_argvflags[v->arg]) {
754: case (ARGV_SINGLE):
755: return(argv_single(mdoc, line, v, pos, buf));
756: case (ARGV_MULTI):
757: return(argv_multi(mdoc, line, v, pos, buf));
758: case (ARGV_OPT_SINGLE):
759: return(argv_opt_single(mdoc, line, v, pos, buf));
760: default:
761: /* ARGV_NONE */
762: break;
763: }
764:
765: return(1);
766: }
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