Annotation of mandoc/mdoc_argv.c, Revision 1.36
1.36 ! kristaps 1: /* $Id: mdoc_argv.c,v 1.35 2010/03/31 07:13:53 kristaps Exp $ */
1.1 kristaps 2: /*
1.4 kristaps 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
1.3 kristaps 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: *
1.3 kristaps 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: */
1.33 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.1 kristaps 21: #include <sys/types.h>
22:
23: #include <assert.h>
24: #include <ctype.h>
25: #include <stdlib.h>
26: #include <stdio.h>
27: #include <string.h>
28:
29: #include "libmdoc.h"
1.31 kristaps 30: #include "libmandoc.h"
1.1 kristaps 31:
32: /*
33: * Routines to parse arguments of macros. Arguments follow the syntax
34: * of `-arg [val [valN...]]'. Arguments come in all types: quoted
35: * arguments, multiple arguments per value, no-value arguments, etc.
36: *
37: * There's no limit to the number or arguments that may be allocated.
38: */
39:
40: #define ARGV_NONE (1 << 0)
41: #define ARGV_SINGLE (1 << 1)
42: #define ARGV_MULTI (1 << 2)
43: #define ARGV_OPT_SINGLE (1 << 3)
44:
45: #define MULTI_STEP 5
46:
1.35 kristaps 47: static int argv_a2arg(enum mdoct, const char *);
1.1 kristaps 48: static int args(struct mdoc *, int, int *,
49: char *, int, char **);
50: static int argv(struct mdoc *, int,
51: struct mdoc_argv *, int *, char *);
52: static int argv_single(struct mdoc *, int,
53: struct mdoc_argv *, int *, char *);
54: static int argv_opt_single(struct mdoc *, int,
55: struct mdoc_argv *, int *, char *);
56: static int argv_multi(struct mdoc *, int,
57: struct mdoc_argv *, int *, char *);
1.2 kristaps 58:
1.1 kristaps 59: /* Per-argument flags. */
60:
61: static int mdoc_argvflags[MDOC_ARG_MAX] = {
62: ARGV_NONE, /* MDOC_Split */
63: ARGV_NONE, /* MDOC_Nosplit */
64: ARGV_NONE, /* MDOC_Ragged */
65: ARGV_NONE, /* MDOC_Unfilled */
66: ARGV_NONE, /* MDOC_Literal */
1.29 kristaps 67: ARGV_SINGLE, /* MDOC_File */
1.26 kristaps 68: ARGV_OPT_SINGLE, /* MDOC_Offset */
1.1 kristaps 69: ARGV_NONE, /* MDOC_Bullet */
70: ARGV_NONE, /* MDOC_Dash */
71: ARGV_NONE, /* MDOC_Hyphen */
72: ARGV_NONE, /* MDOC_Item */
73: ARGV_NONE, /* MDOC_Enum */
74: ARGV_NONE, /* MDOC_Tag */
75: ARGV_NONE, /* MDOC_Diag */
76: ARGV_NONE, /* MDOC_Hang */
77: ARGV_NONE, /* MDOC_Ohang */
78: ARGV_NONE, /* MDOC_Inset */
79: ARGV_MULTI, /* MDOC_Column */
80: ARGV_SINGLE, /* MDOC_Width */
81: ARGV_NONE, /* MDOC_Compact */
1.25 kristaps 82: ARGV_NONE, /* MDOC_Std */
1.1 kristaps 83: ARGV_NONE, /* MDOC_Filled */
84: ARGV_NONE, /* MDOC_Words */
85: ARGV_NONE, /* MDOC_Emphasis */
86: ARGV_NONE, /* MDOC_Symbolic */
87: ARGV_NONE /* MDOC_Symbolic */
88: };
89:
90: static int mdoc_argflags[MDOC_MAX] = {
1.5 kristaps 91: 0, /* Ap */
1.1 kristaps 92: 0, /* Dd */
93: 0, /* Dt */
94: 0, /* Os */
1.17 kristaps 95: 0, /* Sh */
96: 0, /* Ss */
1.1 kristaps 97: ARGS_DELIM, /* Pp */
98: ARGS_DELIM, /* D1 */
1.17 kristaps 99: ARGS_DELIM, /* Dl */
1.1 kristaps 100: 0, /* Bd */
101: 0, /* Ed */
1.17 kristaps 102: 0, /* Bl */
1.1 kristaps 103: 0, /* El */
104: 0, /* It */
105: ARGS_DELIM, /* Ad */
106: ARGS_DELIM, /* An */
1.17 kristaps 107: ARGS_DELIM, /* Ar */
108: 0, /* Cd */
1.1 kristaps 109: ARGS_DELIM, /* Cm */
110: ARGS_DELIM, /* Dv */
111: ARGS_DELIM, /* Er */
112: ARGS_DELIM, /* Ev */
113: 0, /* Ex */
1.17 kristaps 114: ARGS_DELIM, /* Fa */
1.1 kristaps 115: 0, /* Fd */
116: ARGS_DELIM, /* Fl */
1.17 kristaps 117: ARGS_DELIM, /* Fn */
118: ARGS_DELIM, /* Ft */
1.1 kristaps 119: ARGS_DELIM, /* Ic */
120: 0, /* In */
1.17 kristaps 121: ARGS_DELIM, /* Li */
122: 0, /* Nd */
1.1 kristaps 123: ARGS_DELIM, /* Nm */
124: ARGS_DELIM, /* Op */
125: 0, /* Ot */
126: ARGS_DELIM, /* Pa */
127: 0, /* Rv */
1.15 kristaps 128: ARGS_DELIM, /* St */
1.1 kristaps 129: ARGS_DELIM, /* Va */
130: ARGS_DELIM, /* Vt */
131: ARGS_DELIM, /* Xr */
1.17 kristaps 132: 0, /* %A */
133: 0, /* %B */
134: 0, /* %D */
135: 0, /* %I */
136: 0, /* %J */
137: 0, /* %N */
138: 0, /* %O */
139: 0, /* %P */
140: 0, /* %R */
141: 0, /* %T */
142: 0, /* %V */
1.1 kristaps 143: ARGS_DELIM, /* Ac */
144: 0, /* Ao */
145: ARGS_DELIM, /* Aq */
146: ARGS_DELIM, /* At */
147: ARGS_DELIM, /* Bc */
148: 0, /* Bf */
149: 0, /* Bo */
150: ARGS_DELIM, /* Bq */
151: ARGS_DELIM, /* Bsx */
152: ARGS_DELIM, /* Bx */
153: 0, /* Db */
154: ARGS_DELIM, /* Dc */
155: 0, /* Do */
156: ARGS_DELIM, /* Dq */
157: ARGS_DELIM, /* Ec */
158: 0, /* Ef */
159: ARGS_DELIM, /* Em */
160: 0, /* Eo */
161: ARGS_DELIM, /* Fx */
162: ARGS_DELIM, /* Ms */
163: ARGS_DELIM, /* No */
164: ARGS_DELIM, /* Ns */
165: ARGS_DELIM, /* Nx */
166: ARGS_DELIM, /* Ox */
167: ARGS_DELIM, /* Pc */
168: ARGS_DELIM, /* Pf */
169: 0, /* Po */
170: ARGS_DELIM, /* Pq */
171: ARGS_DELIM, /* Qc */
172: ARGS_DELIM, /* Ql */
173: 0, /* Qo */
174: ARGS_DELIM, /* Qq */
175: 0, /* Re */
176: 0, /* Rs */
177: ARGS_DELIM, /* Sc */
178: 0, /* So */
179: ARGS_DELIM, /* Sq */
180: 0, /* Sm */
181: ARGS_DELIM, /* Sx */
1.17 kristaps 182: ARGS_DELIM, /* Sy */
1.1 kristaps 183: ARGS_DELIM, /* Tn */
184: ARGS_DELIM, /* Ux */
185: ARGS_DELIM, /* Xc */
186: 0, /* Xo */
1.17 kristaps 187: 0, /* Fo */
1.1 kristaps 188: 0, /* Fc */
189: 0, /* Oo */
190: ARGS_DELIM, /* Oc */
191: 0, /* Bk */
192: 0, /* Ek */
193: 0, /* Bt */
194: 0, /* Hf */
195: 0, /* Fr */
196: 0, /* Ud */
197: 0, /* Lb */
198: ARGS_DELIM, /* Lp */
1.17 kristaps 199: ARGS_DELIM, /* Lk */
200: ARGS_DELIM, /* Mt */
1.1 kristaps 201: ARGS_DELIM, /* Brq */
202: 0, /* Bro */
203: ARGS_DELIM, /* Brc */
1.17 kristaps 204: 0, /* %C */
1.1 kristaps 205: 0, /* Es */
206: 0, /* En */
207: 0, /* Dx */
1.17 kristaps 208: 0, /* %Q */
1.14 kristaps 209: 0, /* br */
210: 0, /* sp */
1.30 kristaps 211: 0, /* %U */
1.1 kristaps 212: };
213:
214:
215: /*
216: * Parse an argument from line text. This comes in the form of -key
217: * [value0...], which may either have a single mandatory value, at least
218: * one mandatory value, an optional single value, or no value.
219: */
220: int
1.35 kristaps 221: mdoc_argv(struct mdoc *m, int line, enum mdoct tok,
1.1 kristaps 222: struct mdoc_arg **v, int *pos, char *buf)
223: {
224: char *p, sv;
225: struct mdoc_argv tmp;
226: struct mdoc_arg *arg;
227:
228: if (0 == buf[*pos])
229: return(ARGV_EOLN);
230:
231: assert(' ' != buf[*pos]);
232:
233: /* Parse through to the first unescaped space. */
234:
235: p = &buf[++(*pos)];
236:
237: assert(*pos > 0);
238:
239: /* LINTED */
240: while (buf[*pos]) {
241: if (' ' == buf[*pos])
242: if ('\\' != buf[*pos - 1])
243: break;
244: (*pos)++;
245: }
246:
247: /* XXX - save zeroed byte, if not an argument. */
248:
249: sv = 0;
250: if (buf[*pos]) {
251: sv = buf[*pos];
252: buf[(*pos)++] = 0;
253: }
254:
255: (void)memset(&tmp, 0, sizeof(struct mdoc_argv));
256: tmp.line = line;
257: tmp.pos = *pos;
258:
259: /* See if our token accepts the argument. */
260:
261: if (MDOC_ARG_MAX == (tmp.arg = argv_a2arg(tok, p))) {
262: /* XXX - restore saved zeroed byte. */
263: if (sv)
264: buf[*pos - 1] = sv;
265: return(ARGV_WORD);
266: }
267:
268: while (buf[*pos] && ' ' == buf[*pos])
269: (*pos)++;
270:
1.11 kristaps 271: if ( ! argv(m, line, &tmp, pos, buf))
1.1 kristaps 272: return(ARGV_ERROR);
273:
1.31 kristaps 274: if (NULL == (arg = *v))
1.32 kristaps 275: arg = *v = mandoc_calloc(1, sizeof(struct mdoc_arg));
1.1 kristaps 276:
277: arg->argc++;
1.31 kristaps 278: arg->argv = mandoc_realloc
279: (arg->argv, arg->argc * sizeof(struct mdoc_argv));
1.2 kristaps 280:
1.1 kristaps 281: (void)memcpy(&arg->argv[(int)arg->argc - 1],
282: &tmp, sizeof(struct mdoc_argv));
283:
284: return(ARGV_ARG);
285: }
286:
287:
288: void
289: mdoc_argv_free(struct mdoc_arg *p)
290: {
291: int i, j;
292:
293: if (NULL == p)
294: return;
295:
296: if (p->refcnt) {
297: --(p->refcnt);
298: if (p->refcnt)
299: return;
300: }
301: assert(p->argc);
302:
303: /* LINTED */
304: for (i = 0; i < (int)p->argc; i++) {
305: if (0 == p->argv[i].sz)
306: continue;
1.26 kristaps 307: if (NULL == p->argv[i].value)
308: continue;
309:
1.1 kristaps 310: /* LINTED */
311: for (j = 0; j < (int)p->argv[i].sz; j++)
1.26 kristaps 312: if (p->argv[i].value[j])
313: free(p->argv[i].value[j]);
1.1 kristaps 314:
315: free(p->argv[i].value);
316: }
317:
318: free(p->argv);
319: free(p);
320: }
321:
322:
323: int
1.23 kristaps 324: mdoc_zargs(struct mdoc *m, int line, int *pos,
325: char *buf, int flags, char **v)
1.19 kristaps 326: {
327:
1.23 kristaps 328: return(args(m, line, pos, buf, flags, v));
1.19 kristaps 329: }
330:
331:
332: int
1.35 kristaps 333: mdoc_args(struct mdoc *m, int line, int *pos,
334: char *buf, enum mdoct tok, char **v)
1.1 kristaps 335: {
336: int fl, c, i;
337: struct mdoc_node *n;
338:
1.35 kristaps 339: fl = mdoc_argflags[tok];
1.1 kristaps 340:
1.17 kristaps 341: if (MDOC_It != tok)
342: return(args(m, line, pos, buf, fl, v));
343:
1.1 kristaps 344: /*
1.17 kristaps 345: * The `It' macro is a special case, as it acquires parameters from its
346: * parent `Bl' context, specifically, we're concerned with -column.
1.1 kristaps 347: */
348:
1.17 kristaps 349: for (n = m->last; n; n = n->parent)
350: if (MDOC_BLOCK == n->type && MDOC_Bl == n->tok)
351: break;
1.1 kristaps 352:
1.17 kristaps 353: assert(n);
354: c = (int)(n->args ? n->args->argc : 0);
355: assert(c > 0);
1.1 kristaps 356:
1.17 kristaps 357: /* LINTED */
358: for (i = 0; i < c; i++) {
359: if (MDOC_Column != n->args->argv[i].arg)
360: continue;
361: fl |= ARGS_TABSEP;
362: fl &= ~ARGS_DELIM;
1.1 kristaps 363: break;
364: }
365:
1.11 kristaps 366: return(args(m, line, pos, buf, fl, v));
1.1 kristaps 367: }
368:
369:
370: static int
1.13 kristaps 371: args(struct mdoc *m, int line, int *pos,
372: char *buf, int fl, char **v)
1.1 kristaps 373: {
1.21 kristaps 374: int i;
1.1 kristaps 375: char *p, *pp;
376:
1.24 kristaps 377: /*
378: * Parse out the terms (like `val' in `.Xx -arg val' or simply
379: * `.Xx val'), which can have all sorts of properties:
380: *
381: * ARGS_DELIM: use special handling if encountering trailing
382: * delimiters in the form of [[::delim::][ ]+]+.
383: *
384: * ARGS_NOWARN: don't post warnings. This is only used when
385: * re-parsing delimiters, as the warnings have already been
386: * posted.
387: *
388: * ARGS_TABSEP: use special handling for tab/`Ta' separated
389: * phrases like in `Bl -column'.
390: */
391:
1.17 kristaps 392: assert(*pos);
393: assert(' ' != buf[*pos]);
1.1 kristaps 394:
395: if (0 == buf[*pos])
396: return(ARGS_EOLN);
397:
398: /*
399: * If the first character is a delimiter and we're to look for
400: * delimited strings, then pass down the buffer seeing if it
401: * follows the pattern of [[::delim::][ ]+]+.
402: */
403:
1.34 kristaps 404: if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos]) > 1) {
1.1 kristaps 405: for (i = *pos; buf[i]; ) {
1.34 kristaps 406: if ( mdoc_iscdelim(buf[i]) < 2)
1.1 kristaps 407: break;
408: i++;
409: if (0 == buf[i] || ' ' != buf[i])
410: break;
411: i++;
412: while (buf[i] && ' ' == buf[i])
413: i++;
414: }
1.17 kristaps 415:
1.1 kristaps 416: if (0 == buf[i]) {
417: *v = &buf[*pos];
1.23 kristaps 418: if (' ' != buf[i - 1])
419: return(ARGS_PUNCT);
420: if (ARGS_NOWARN & fl)
421: return(ARGS_PUNCT);
422: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
423: return(ARGS_ERROR);
1.1 kristaps 424: return(ARGS_PUNCT);
425: }
426: }
427:
1.17 kristaps 428: *v = &buf[*pos];
1.1 kristaps 429:
1.17 kristaps 430: /*
431: * First handle TABSEP items, restricted to `Bl -column'. This
432: * ignores conventional token parsing and instead uses tabs or
433: * `Ta' macros to separate phrases. Phrases are parsed again
434: * for arguments at a later phase.
435: */
1.1 kristaps 436:
1.17 kristaps 437: if (ARGS_TABSEP & fl) {
1.20 kristaps 438: /* Scan ahead to tab (can't be escaped). */
1.17 kristaps 439: p = strchr(*v, '\t');
440:
441: /* Scan ahead to unescaped `Ta'. */
442: for (pp = *v; ; pp++) {
443: if (NULL == (pp = strstr(pp, "Ta")))
444: break;
445: if (pp > *v && ' ' != *(pp - 1))
446: continue;
447: if (' ' == *(pp + 2) || 0 == *(pp + 2))
448: break;
449: }
450:
1.21 kristaps 451: /*
452: * Adjust new-buffer position to be beyond delimiter
453: * mark (e.g., Ta -> end + 2).
454: */
1.20 kristaps 455: if (p && pp) {
456: *pos += pp < p ? 2 : 1;
457: p = pp < p ? pp : p;
458: } else if (p && ! pp) {
459: *pos += 1;
460: } else if (pp && ! p) {
1.17 kristaps 461: p = pp;
1.20 kristaps 462: *pos += 2;
463: } else
464: p = strchr(*v, 0);
465:
1.21 kristaps 466: /* Whitespace check for eoln case... */
1.23 kristaps 467: if (0 == *p && ' ' == *(p - 1) && ! (ARGS_NOWARN & fl))
1.20 kristaps 468: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
469: return(ARGS_ERROR);
470:
471: *pos += (int)(p - *v);
1.17 kristaps 472:
473: /* Strip delimiter's preceding whitespace. */
1.20 kristaps 474: pp = p - 1;
475: while (pp > *v && ' ' == *pp) {
476: if (pp > *v && '\\' == *(pp - 1))
477: break;
478: pp--;
1.17 kristaps 479: }
1.20 kristaps 480: *(pp + 1) = 0;
1.17 kristaps 481:
1.20 kristaps 482: /* Strip delimiter's proceeding whitespace. */
483: for (pp = &buf[*pos]; ' ' == *pp; pp++, (*pos)++)
484: /* Skip ahead. */ ;
1.1 kristaps 485:
1.17 kristaps 486: return(ARGS_PHRASE);
487: }
1.1 kristaps 488:
1.17 kristaps 489: /*
490: * Process a quoted literal. A quote begins with a double-quote
491: * and ends with a double-quote NOT preceded by a double-quote.
492: * Whitespace is NOT involved in literal termination.
493: */
1.1 kristaps 494:
1.17 kristaps 495: if ('\"' == buf[*pos]) {
496: *v = &buf[++(*pos)];
1.1 kristaps 497:
1.17 kristaps 498: for ( ; buf[*pos]; (*pos)++) {
499: if ('\"' != buf[*pos])
500: continue;
501: if ('\"' != buf[*pos + 1])
502: break;
503: (*pos)++;
504: }
1.1 kristaps 505:
1.17 kristaps 506: if (0 == buf[*pos]) {
1.23 kristaps 507: if (ARGS_NOWARN & fl)
508: return(ARGS_QWORD);
1.18 kristaps 509: if ( ! mdoc_pwarn(m, line, *pos, EQUOTTERM))
510: return(ARGS_ERROR);
511: return(ARGS_QWORD);
1.17 kristaps 512: }
1.1 kristaps 513:
514: buf[(*pos)++] = 0;
515:
516: if (0 == buf[*pos])
1.17 kristaps 517: return(ARGS_QWORD);
1.1 kristaps 518:
1.17 kristaps 519: while (' ' == buf[*pos])
520: (*pos)++;
1.1 kristaps 521:
1.23 kristaps 522: if (0 == buf[*pos] && ! (ARGS_NOWARN & fl))
1.17 kristaps 523: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
524: return(ARGS_ERROR);
1.1 kristaps 525:
1.17 kristaps 526: return(ARGS_QWORD);
1.1 kristaps 527: }
528:
1.17 kristaps 529: /*
530: * A non-quoted term progresses until either the end of line or
531: * a non-escaped whitespace.
1.1 kristaps 532: */
533:
1.17 kristaps 534: for ( ; buf[*pos]; (*pos)++)
535: if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
536: break;
1.1 kristaps 537:
1.17 kristaps 538: if (0 == buf[*pos])
539: return(ARGS_WORD);
1.1 kristaps 540:
541: buf[(*pos)++] = 0;
542:
1.17 kristaps 543: while (' ' == buf[*pos])
1.1 kristaps 544: (*pos)++;
545:
1.23 kristaps 546: if (0 == buf[*pos] && ! (ARGS_NOWARN & fl))
1.17 kristaps 547: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
548: return(ARGS_ERROR);
1.1 kristaps 549:
1.17 kristaps 550: return(ARGS_WORD);
1.1 kristaps 551: }
552:
553:
554: static int
1.35 kristaps 555: argv_a2arg(enum mdoct tok, const char *p)
1.1 kristaps 556: {
557:
558: /*
559: * Parse an argument identifier from its text. XXX - this
560: * should really be table-driven to clarify the code.
561: *
562: * If you add an argument to the list, make sure that you
563: * register it here with its one or more macros!
564: */
565:
566: switch (tok) {
567: case (MDOC_An):
1.27 kristaps 568: if (0 == strcmp(p, "split"))
1.1 kristaps 569: return(MDOC_Split);
1.27 kristaps 570: else if (0 == strcmp(p, "nosplit"))
1.1 kristaps 571: return(MDOC_Nosplit);
572: break;
573:
574: case (MDOC_Bd):
1.27 kristaps 575: if (0 == strcmp(p, "ragged"))
1.1 kristaps 576: return(MDOC_Ragged);
1.27 kristaps 577: else if (0 == strcmp(p, "unfilled"))
1.1 kristaps 578: return(MDOC_Unfilled);
1.27 kristaps 579: else if (0 == strcmp(p, "filled"))
1.1 kristaps 580: return(MDOC_Filled);
1.27 kristaps 581: else if (0 == strcmp(p, "literal"))
1.1 kristaps 582: return(MDOC_Literal);
1.27 kristaps 583: else if (0 == strcmp(p, "file"))
1.1 kristaps 584: return(MDOC_File);
1.27 kristaps 585: else if (0 == strcmp(p, "offset"))
1.1 kristaps 586: return(MDOC_Offset);
1.27 kristaps 587: else if (0 == strcmp(p, "compact"))
1.1 kristaps 588: return(MDOC_Compact);
1.28 kristaps 589: else if (0 == strcmp(p, "centered"))
590: return(MDOC_Centred);
1.1 kristaps 591: break;
592:
593: case (MDOC_Bf):
1.27 kristaps 594: if (0 == strcmp(p, "emphasis"))
1.1 kristaps 595: return(MDOC_Emphasis);
1.27 kristaps 596: else if (0 == strcmp(p, "literal"))
1.1 kristaps 597: return(MDOC_Literal);
1.27 kristaps 598: else if (0 == strcmp(p, "symbolic"))
1.1 kristaps 599: return(MDOC_Symbolic);
600: break;
601:
602: case (MDOC_Bk):
1.27 kristaps 603: if (0 == strcmp(p, "words"))
1.1 kristaps 604: return(MDOC_Words);
605: break;
606:
607: case (MDOC_Bl):
1.27 kristaps 608: if (0 == strcmp(p, "bullet"))
1.1 kristaps 609: return(MDOC_Bullet);
1.27 kristaps 610: else if (0 == strcmp(p, "dash"))
1.1 kristaps 611: return(MDOC_Dash);
1.27 kristaps 612: else if (0 == strcmp(p, "hyphen"))
1.1 kristaps 613: return(MDOC_Hyphen);
1.27 kristaps 614: else if (0 == strcmp(p, "item"))
1.1 kristaps 615: return(MDOC_Item);
1.27 kristaps 616: else if (0 == strcmp(p, "enum"))
1.1 kristaps 617: return(MDOC_Enum);
1.27 kristaps 618: else if (0 == strcmp(p, "tag"))
1.1 kristaps 619: return(MDOC_Tag);
1.27 kristaps 620: else if (0 == strcmp(p, "diag"))
1.1 kristaps 621: return(MDOC_Diag);
1.27 kristaps 622: else if (0 == strcmp(p, "hang"))
1.1 kristaps 623: return(MDOC_Hang);
1.27 kristaps 624: else if (0 == strcmp(p, "ohang"))
1.1 kristaps 625: return(MDOC_Ohang);
1.27 kristaps 626: else if (0 == strcmp(p, "inset"))
1.1 kristaps 627: return(MDOC_Inset);
1.27 kristaps 628: else if (0 == strcmp(p, "column"))
1.1 kristaps 629: return(MDOC_Column);
1.27 kristaps 630: else if (0 == strcmp(p, "width"))
1.1 kristaps 631: return(MDOC_Width);
1.27 kristaps 632: else if (0 == strcmp(p, "offset"))
1.1 kristaps 633: return(MDOC_Offset);
1.27 kristaps 634: else if (0 == strcmp(p, "compact"))
1.1 kristaps 635: return(MDOC_Compact);
1.27 kristaps 636: else if (0 == strcmp(p, "nested"))
1.1 kristaps 637: return(MDOC_Nested);
638: break;
639:
640: case (MDOC_Rv):
641: /* FALLTHROUGH */
642: case (MDOC_Ex):
1.27 kristaps 643: if (0 == strcmp(p, "std"))
1.1 kristaps 644: return(MDOC_Std);
645: break;
646: default:
647: break;
648: }
649:
650: return(MDOC_ARG_MAX);
651: }
652:
653:
654: static int
1.11 kristaps 655: argv_multi(struct mdoc *m, int line,
1.1 kristaps 656: struct mdoc_argv *v, int *pos, char *buf)
657: {
1.8 kristaps 658: int c;
1.1 kristaps 659: char *p;
660:
661: for (v->sz = 0; ; v->sz++) {
662: if ('-' == buf[*pos])
663: break;
1.17 kristaps 664: c = args(m, line, pos, buf, 0, &p);
1.1 kristaps 665: if (ARGS_ERROR == c)
666: return(0);
667: else if (ARGS_EOLN == c)
668: break;
669:
1.31 kristaps 670: if (0 == v->sz % MULTI_STEP)
671: v->value = mandoc_realloc(v->value,
1.1 kristaps 672: (v->sz + MULTI_STEP) * sizeof(char *));
1.31 kristaps 673:
674: v->value[(int)v->sz] = mandoc_strdup(p);
1.1 kristaps 675: }
676:
1.7 kristaps 677: return(1);
1.1 kristaps 678: }
679:
680:
681: static int
1.11 kristaps 682: argv_opt_single(struct mdoc *m, int line,
1.1 kristaps 683: struct mdoc_argv *v, int *pos, char *buf)
684: {
685: int c;
686: char *p;
687:
688: if ('-' == buf[*pos])
689: return(1);
690:
1.17 kristaps 691: c = args(m, line, pos, buf, 0, &p);
1.1 kristaps 692: if (ARGS_ERROR == c)
693: return(0);
694: if (ARGS_EOLN == c)
695: return(1);
696:
697: v->sz = 1;
1.31 kristaps 698: v->value = mandoc_malloc(sizeof(char *));
699: v->value[0] = mandoc_strdup(p);
1.2 kristaps 700:
1.1 kristaps 701: return(1);
702: }
703:
704:
705: /*
706: * Parse a single, mandatory value from the stream.
707: */
708: static int
1.11 kristaps 709: argv_single(struct mdoc *m, int line,
1.1 kristaps 710: struct mdoc_argv *v, int *pos, char *buf)
711: {
712: int c, ppos;
713: char *p;
714:
715: ppos = *pos;
716:
1.17 kristaps 717: c = args(m, line, pos, buf, 0, &p);
1.1 kristaps 718: if (ARGS_ERROR == c)
719: return(0);
720: if (ARGS_EOLN == c)
1.11 kristaps 721: return(mdoc_perr(m, line, ppos, EARGVAL));
1.1 kristaps 722:
723: v->sz = 1;
1.31 kristaps 724: v->value = mandoc_malloc(sizeof(char *));
725: v->value[0] = mandoc_strdup(p);
1.2 kristaps 726:
1.1 kristaps 727: return(1);
728: }
729:
730:
731: /*
732: * Determine rules for parsing arguments. Arguments can either accept
733: * no parameters, an optional single parameter, one parameter, or
734: * multiple parameters.
735: */
736: static int
737: argv(struct mdoc *mdoc, int line,
738: struct mdoc_argv *v, int *pos, char *buf)
739: {
740:
741: v->sz = 0;
742: v->value = NULL;
743:
744: switch (mdoc_argvflags[v->arg]) {
745: case (ARGV_SINGLE):
746: return(argv_single(mdoc, line, v, pos, buf));
747: case (ARGV_MULTI):
748: return(argv_multi(mdoc, line, v, pos, buf));
749: case (ARGV_OPT_SINGLE):
750: return(argv_opt_single(mdoc, line, v, pos, buf));
751: default:
752: /* ARGV_NONE */
753: break;
754: }
755:
756: return(1);
757: }
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