Annotation of mandoc/mdoc_argv.c, Revision 1.50
1.50 ! kristaps 1: /* $Id: mdoc_argv.c,v 1.49 2010/05/17 22:11:42 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:
1.49 kristaps 29: #include "mandoc.h"
1.1 kristaps 30: #include "libmdoc.h"
1.31 kristaps 31: #include "libmandoc.h"
1.1 kristaps 32:
33: /*
34: * Routines to parse arguments of macros. Arguments follow the syntax
35: * of `-arg [val [valN...]]'. Arguments come in all types: quoted
36: * arguments, multiple arguments per value, no-value arguments, etc.
37: *
38: * There's no limit to the number or arguments that may be allocated.
39: */
40:
41: #define ARGV_NONE (1 << 0)
42: #define ARGV_SINGLE (1 << 1)
43: #define ARGV_MULTI (1 << 2)
44: #define ARGV_OPT_SINGLE (1 << 3)
45:
46: #define MULTI_STEP 5
47:
1.35 kristaps 48: static int argv_a2arg(enum mdoct, const char *);
1.39 kristaps 49: static enum margserr args(struct mdoc *, int, int *,
1.1 kristaps 50: char *, int, char **);
51: static int argv(struct mdoc *, int,
52: struct mdoc_argv *, int *, char *);
53: static int argv_single(struct mdoc *, int,
54: struct mdoc_argv *, int *, char *);
55: static int argv_opt_single(struct mdoc *, int,
56: struct mdoc_argv *, int *, char *);
57: static int argv_multi(struct mdoc *, int,
58: struct mdoc_argv *, int *, char *);
1.2 kristaps 59:
1.1 kristaps 60: /* Per-argument flags. */
61:
62: static int mdoc_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 */
1.29 kristaps 68: ARGV_SINGLE, /* MDOC_File */
1.26 kristaps 69: ARGV_OPT_SINGLE, /* MDOC_Offset */
1.1 kristaps 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 */
1.25 kristaps 83: ARGV_NONE, /* MDOC_Std */
1.1 kristaps 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 int mdoc_argflags[MDOC_MAX] = {
1.5 kristaps 92: 0, /* Ap */
1.1 kristaps 93: 0, /* Dd */
94: 0, /* Dt */
95: 0, /* Os */
1.17 kristaps 96: 0, /* Sh */
97: 0, /* Ss */
1.1 kristaps 98: ARGS_DELIM, /* Pp */
99: ARGS_DELIM, /* D1 */
1.17 kristaps 100: ARGS_DELIM, /* Dl */
1.1 kristaps 101: 0, /* Bd */
102: 0, /* Ed */
1.17 kristaps 103: 0, /* Bl */
1.1 kristaps 104: 0, /* El */
105: 0, /* It */
106: ARGS_DELIM, /* Ad */
107: ARGS_DELIM, /* An */
1.17 kristaps 108: ARGS_DELIM, /* Ar */
109: 0, /* Cd */
1.1 kristaps 110: ARGS_DELIM, /* Cm */
111: ARGS_DELIM, /* Dv */
112: ARGS_DELIM, /* Er */
113: ARGS_DELIM, /* Ev */
114: 0, /* Ex */
1.17 kristaps 115: ARGS_DELIM, /* Fa */
1.1 kristaps 116: 0, /* Fd */
117: ARGS_DELIM, /* Fl */
1.17 kristaps 118: ARGS_DELIM, /* Fn */
119: ARGS_DELIM, /* Ft */
1.1 kristaps 120: ARGS_DELIM, /* Ic */
121: 0, /* In */
1.17 kristaps 122: ARGS_DELIM, /* Li */
123: 0, /* Nd */
1.1 kristaps 124: ARGS_DELIM, /* Nm */
125: ARGS_DELIM, /* Op */
126: 0, /* Ot */
127: ARGS_DELIM, /* Pa */
128: 0, /* Rv */
1.15 kristaps 129: ARGS_DELIM, /* St */
1.1 kristaps 130: ARGS_DELIM, /* Va */
131: ARGS_DELIM, /* Vt */
132: ARGS_DELIM, /* Xr */
1.17 kristaps 133: 0, /* %A */
134: 0, /* %B */
135: 0, /* %D */
136: 0, /* %I */
137: 0, /* %J */
138: 0, /* %N */
139: 0, /* %O */
140: 0, /* %P */
141: 0, /* %R */
142: 0, /* %T */
143: 0, /* %V */
1.1 kristaps 144: ARGS_DELIM, /* Ac */
145: 0, /* Ao */
146: ARGS_DELIM, /* Aq */
147: ARGS_DELIM, /* At */
148: ARGS_DELIM, /* Bc */
149: 0, /* Bf */
150: 0, /* Bo */
151: ARGS_DELIM, /* Bq */
152: ARGS_DELIM, /* Bsx */
153: ARGS_DELIM, /* Bx */
154: 0, /* Db */
155: ARGS_DELIM, /* Dc */
156: 0, /* Do */
157: ARGS_DELIM, /* Dq */
158: ARGS_DELIM, /* Ec */
159: 0, /* Ef */
160: ARGS_DELIM, /* Em */
161: 0, /* Eo */
162: ARGS_DELIM, /* Fx */
163: ARGS_DELIM, /* Ms */
164: ARGS_DELIM, /* No */
165: ARGS_DELIM, /* Ns */
166: ARGS_DELIM, /* Nx */
167: ARGS_DELIM, /* Ox */
168: ARGS_DELIM, /* Pc */
169: ARGS_DELIM, /* Pf */
170: 0, /* Po */
171: ARGS_DELIM, /* Pq */
172: ARGS_DELIM, /* Qc */
173: ARGS_DELIM, /* Ql */
174: 0, /* Qo */
175: ARGS_DELIM, /* Qq */
176: 0, /* Re */
177: 0, /* Rs */
178: ARGS_DELIM, /* Sc */
179: 0, /* So */
180: ARGS_DELIM, /* Sq */
181: 0, /* Sm */
182: ARGS_DELIM, /* Sx */
1.17 kristaps 183: ARGS_DELIM, /* Sy */
1.1 kristaps 184: ARGS_DELIM, /* Tn */
185: ARGS_DELIM, /* Ux */
186: ARGS_DELIM, /* Xc */
187: 0, /* Xo */
1.17 kristaps 188: 0, /* Fo */
1.1 kristaps 189: 0, /* Fc */
190: 0, /* Oo */
191: ARGS_DELIM, /* Oc */
192: 0, /* Bk */
193: 0, /* Ek */
194: 0, /* Bt */
195: 0, /* Hf */
196: 0, /* Fr */
197: 0, /* Ud */
198: 0, /* Lb */
199: ARGS_DELIM, /* Lp */
1.17 kristaps 200: ARGS_DELIM, /* Lk */
201: ARGS_DELIM, /* Mt */
1.1 kristaps 202: ARGS_DELIM, /* Brq */
203: 0, /* Bro */
204: ARGS_DELIM, /* Brc */
1.17 kristaps 205: 0, /* %C */
1.1 kristaps 206: 0, /* Es */
207: 0, /* En */
208: 0, /* Dx */
1.17 kristaps 209: 0, /* %Q */
1.14 kristaps 210: 0, /* br */
211: 0, /* sp */
1.30 kristaps 212: 0, /* %U */
1.1 kristaps 213: };
214:
215:
216: /*
217: * Parse an argument from line text. This comes in the form of -key
218: * [value0...], which may either have a single mandatory value, at least
219: * one mandatory value, an optional single value, or no value.
220: */
1.40 kristaps 221: enum margverr
1.35 kristaps 222: mdoc_argv(struct mdoc *m, int line, enum mdoct tok,
1.1 kristaps 223: struct mdoc_arg **v, int *pos, char *buf)
224: {
225: char *p, sv;
226: struct mdoc_argv tmp;
227: struct mdoc_arg *arg;
228:
229: if (0 == buf[*pos])
230: return(ARGV_EOLN);
231:
232: assert(' ' != buf[*pos]);
233:
234: /* Parse through to the first unescaped space. */
235:
236: p = &buf[++(*pos)];
237:
238: assert(*pos > 0);
239:
240: /* LINTED */
241: while (buf[*pos]) {
242: if (' ' == buf[*pos])
243: if ('\\' != buf[*pos - 1])
244: break;
245: (*pos)++;
246: }
247:
248: /* XXX - save zeroed byte, if not an argument. */
249:
250: sv = 0;
251: if (buf[*pos]) {
252: sv = buf[*pos];
253: buf[(*pos)++] = 0;
254: }
255:
256: (void)memset(&tmp, 0, sizeof(struct mdoc_argv));
257: tmp.line = line;
258: tmp.pos = *pos;
259:
260: /* See if our token accepts the argument. */
261:
262: if (MDOC_ARG_MAX == (tmp.arg = argv_a2arg(tok, p))) {
263: /* XXX - restore saved zeroed byte. */
264: if (sv)
265: buf[*pos - 1] = sv;
266: return(ARGV_WORD);
267: }
268:
269: while (buf[*pos] && ' ' == buf[*pos])
270: (*pos)++;
271:
1.11 kristaps 272: if ( ! argv(m, line, &tmp, pos, buf))
1.1 kristaps 273: return(ARGV_ERROR);
274:
1.31 kristaps 275: if (NULL == (arg = *v))
1.32 kristaps 276: arg = *v = mandoc_calloc(1, sizeof(struct mdoc_arg));
1.1 kristaps 277:
278: arg->argc++;
1.31 kristaps 279: arg->argv = mandoc_realloc
280: (arg->argv, arg->argc * sizeof(struct mdoc_argv));
1.2 kristaps 281:
1.1 kristaps 282: (void)memcpy(&arg->argv[(int)arg->argc - 1],
283: &tmp, sizeof(struct mdoc_argv));
284:
285: return(ARGV_ARG);
286: }
287:
288:
289: void
290: mdoc_argv_free(struct mdoc_arg *p)
291: {
1.37 kristaps 292: int i;
1.1 kristaps 293:
294: if (NULL == p)
295: return;
296:
297: if (p->refcnt) {
298: --(p->refcnt);
299: if (p->refcnt)
300: return;
301: }
302: assert(p->argc);
303:
1.37 kristaps 304: for (i = (int)p->argc - 1; i >= 0; i--)
305: mdoc_argn_free(p, i);
306:
307: free(p->argv);
308: free(p);
309: }
310:
311:
312: void
313: mdoc_argn_free(struct mdoc_arg *p, int iarg)
314: {
315: struct mdoc_argv *arg = &p->argv[iarg];
316: int j;
1.1 kristaps 317:
1.37 kristaps 318: if (arg->sz && arg->value) {
319: for (j = (int)arg->sz - 1; j >= 0; j--)
320: free(arg->value[j]);
321: free(arg->value);
1.1 kristaps 322: }
323:
1.37 kristaps 324: for (--p->argc; iarg < (int)p->argc; iarg++)
325: p->argv[iarg] = p->argv[iarg+1];
1.1 kristaps 326: }
327:
328:
1.39 kristaps 329: enum margserr
1.23 kristaps 330: mdoc_zargs(struct mdoc *m, int line, int *pos,
331: char *buf, int flags, char **v)
1.19 kristaps 332: {
333:
1.23 kristaps 334: return(args(m, line, pos, buf, flags, v));
1.19 kristaps 335: }
336:
337:
1.39 kristaps 338: enum margserr
1.35 kristaps 339: mdoc_args(struct mdoc *m, int line, int *pos,
340: char *buf, enum mdoct tok, char **v)
1.1 kristaps 341: {
1.50 ! kristaps 342: int fl;
1.1 kristaps 343: struct mdoc_node *n;
344:
1.35 kristaps 345: fl = mdoc_argflags[tok];
1.1 kristaps 346:
1.17 kristaps 347: if (MDOC_It != tok)
348: return(args(m, line, pos, buf, fl, v));
349:
350: for (n = m->last; n; n = n->parent)
1.50 ! kristaps 351: if (MDOC_Bl == n->tok)
1.17 kristaps 352: break;
1.1 kristaps 353:
1.50 ! kristaps 354: if (n && LIST_column == n->data.list) {
1.17 kristaps 355: fl |= ARGS_TABSEP;
356: fl &= ~ARGS_DELIM;
1.1 kristaps 357: }
358:
1.11 kristaps 359: return(args(m, line, pos, buf, fl, v));
1.1 kristaps 360: }
361:
362:
1.39 kristaps 363: static enum margserr
1.13 kristaps 364: args(struct mdoc *m, int line, int *pos,
365: char *buf, int fl, char **v)
1.1 kristaps 366: {
1.21 kristaps 367: int i;
1.1 kristaps 368: char *p, *pp;
1.41 kristaps 369: enum margserr rc;
1.1 kristaps 370:
1.24 kristaps 371: /*
372: * Parse out the terms (like `val' in `.Xx -arg val' or simply
373: * `.Xx val'), which can have all sorts of properties:
374: *
375: * ARGS_DELIM: use special handling if encountering trailing
376: * delimiters in the form of [[::delim::][ ]+]+.
377: *
378: * ARGS_NOWARN: don't post warnings. This is only used when
379: * re-parsing delimiters, as the warnings have already been
380: * posted.
381: *
382: * ARGS_TABSEP: use special handling for tab/`Ta' separated
383: * phrases like in `Bl -column'.
384: */
385:
1.17 kristaps 386: assert(*pos);
387: assert(' ' != buf[*pos]);
1.1 kristaps 388:
1.46 kristaps 389: if ('\0' == buf[*pos]) {
1.47 kristaps 390: if (MDOC_PPHRASE & m->flags)
1.46 kristaps 391: return(ARGS_EOLN);
392: /*
393: * If we're not in a partial phrase and the flag for
394: * being a phrase literal is still set, the punctuation
395: * is unterminated.
396: */
397: if (MDOC_PHRASELIT & m->flags)
1.49 kristaps 398: if ( ! mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE))
1.46 kristaps 399: return(ARGS_ERROR);
400:
401: m->flags &= ~MDOC_PHRASELIT;
1.1 kristaps 402: return(ARGS_EOLN);
1.46 kristaps 403: }
1.1 kristaps 404:
405: /*
1.45 kristaps 406: * If the first character is a closing delimiter and we're to
407: * look for delimited strings, then pass down the buffer seeing
408: * if it follows the pattern of [[::delim::][ ]+]+. Note that
409: * we ONLY care about closing delimiters.
1.1 kristaps 410: */
411:
1.48 schwarze 412: if ((fl & ARGS_DELIM) && DELIM_CLOSE == mdoc_iscdelim(buf[*pos])) {
1.1 kristaps 413: for (i = *pos; buf[i]; ) {
1.48 schwarze 414: enum mdelim d = mdoc_iscdelim(buf[i]);
415: if (DELIM_NONE == d || DELIM_OPEN == d)
1.1 kristaps 416: break;
417: i++;
1.45 kristaps 418: if ('\0' == buf[i] || ' ' != buf[i])
1.1 kristaps 419: break;
420: i++;
421: while (buf[i] && ' ' == buf[i])
422: i++;
423: }
1.17 kristaps 424:
1.45 kristaps 425: if ('\0' == buf[i]) {
1.1 kristaps 426: *v = &buf[*pos];
1.23 kristaps 427: if (' ' != buf[i - 1])
428: return(ARGS_PUNCT);
429: if (ARGS_NOWARN & fl)
430: return(ARGS_PUNCT);
1.49 kristaps 431: if ( ! mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE))
1.23 kristaps 432: return(ARGS_ERROR);
1.1 kristaps 433: return(ARGS_PUNCT);
434: }
435: }
436:
1.17 kristaps 437: *v = &buf[*pos];
1.1 kristaps 438:
1.17 kristaps 439: /*
440: * First handle TABSEP items, restricted to `Bl -column'. This
441: * ignores conventional token parsing and instead uses tabs or
442: * `Ta' macros to separate phrases. Phrases are parsed again
443: * for arguments at a later phase.
444: */
1.1 kristaps 445:
1.17 kristaps 446: if (ARGS_TABSEP & fl) {
1.20 kristaps 447: /* Scan ahead to tab (can't be escaped). */
1.17 kristaps 448: p = strchr(*v, '\t');
1.46 kristaps 449: pp = NULL;
1.17 kristaps 450:
451: /* Scan ahead to unescaped `Ta'. */
1.46 kristaps 452: if ( ! (MDOC_PHRASELIT & m->flags))
453: for (pp = *v; ; pp++) {
454: if (NULL == (pp = strstr(pp, "Ta")))
455: break;
456: if (pp > *v && ' ' != *(pp - 1))
457: continue;
458: if (' ' == *(pp + 2) || 0 == *(pp + 2))
459: break;
460: }
1.17 kristaps 461:
1.42 kristaps 462: /* By default, assume a phrase. */
463: rc = ARGS_PHRASE;
464:
1.21 kristaps 465: /*
466: * Adjust new-buffer position to be beyond delimiter
467: * mark (e.g., Ta -> end + 2).
468: */
1.20 kristaps 469: if (p && pp) {
470: *pos += pp < p ? 2 : 1;
1.42 kristaps 471: rc = pp < p ? ARGS_PHRASE : ARGS_PPHRASE;
1.20 kristaps 472: p = pp < p ? pp : p;
473: } else if (p && ! pp) {
1.42 kristaps 474: rc = ARGS_PPHRASE;
1.20 kristaps 475: *pos += 1;
476: } else if (pp && ! p) {
1.17 kristaps 477: p = pp;
1.20 kristaps 478: *pos += 2;
1.44 kristaps 479: } else {
480: rc = ARGS_PEND;
1.20 kristaps 481: p = strchr(*v, 0);
1.44 kristaps 482: }
1.20 kristaps 483:
1.21 kristaps 484: /* Whitespace check for eoln case... */
1.23 kristaps 485: if (0 == *p && ' ' == *(p - 1) && ! (ARGS_NOWARN & fl))
1.49 kristaps 486: if ( ! mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE))
1.20 kristaps 487: return(ARGS_ERROR);
488:
489: *pos += (int)(p - *v);
1.17 kristaps 490:
491: /* Strip delimiter's preceding whitespace. */
1.20 kristaps 492: pp = p - 1;
493: while (pp > *v && ' ' == *pp) {
494: if (pp > *v && '\\' == *(pp - 1))
495: break;
496: pp--;
1.17 kristaps 497: }
1.20 kristaps 498: *(pp + 1) = 0;
1.17 kristaps 499:
1.20 kristaps 500: /* Strip delimiter's proceeding whitespace. */
501: for (pp = &buf[*pos]; ' ' == *pp; pp++, (*pos)++)
502: /* Skip ahead. */ ;
1.1 kristaps 503:
1.41 kristaps 504: return(rc);
1.17 kristaps 505: }
1.1 kristaps 506:
1.17 kristaps 507: /*
508: * Process a quoted literal. A quote begins with a double-quote
509: * and ends with a double-quote NOT preceded by a double-quote.
510: * Whitespace is NOT involved in literal termination.
511: */
1.1 kristaps 512:
1.46 kristaps 513: if (MDOC_PHRASELIT & m->flags || '\"' == buf[*pos]) {
514: if ( ! (MDOC_PHRASELIT & m->flags))
515: *v = &buf[++(*pos)];
516:
1.47 kristaps 517: if (MDOC_PPHRASE & m->flags)
1.46 kristaps 518: m->flags |= MDOC_PHRASELIT;
1.1 kristaps 519:
1.17 kristaps 520: for ( ; buf[*pos]; (*pos)++) {
521: if ('\"' != buf[*pos])
522: continue;
523: if ('\"' != buf[*pos + 1])
524: break;
525: (*pos)++;
526: }
1.1 kristaps 527:
1.46 kristaps 528: if ('\0' == buf[*pos]) {
1.47 kristaps 529: if (ARGS_NOWARN & fl || MDOC_PPHRASE & m->flags)
1.23 kristaps 530: return(ARGS_QWORD);
1.49 kristaps 531: if ( ! mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE))
1.18 kristaps 532: return(ARGS_ERROR);
533: return(ARGS_QWORD);
1.17 kristaps 534: }
1.1 kristaps 535:
1.46 kristaps 536: m->flags &= ~MDOC_PHRASELIT;
537: buf[(*pos)++] = '\0';
1.1 kristaps 538:
1.46 kristaps 539: if ('\0' == buf[*pos])
1.17 kristaps 540: return(ARGS_QWORD);
1.1 kristaps 541:
1.17 kristaps 542: while (' ' == buf[*pos])
543: (*pos)++;
1.1 kristaps 544:
1.23 kristaps 545: if (0 == buf[*pos] && ! (ARGS_NOWARN & fl))
1.49 kristaps 546: if ( ! mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE))
1.17 kristaps 547: return(ARGS_ERROR);
1.1 kristaps 548:
1.17 kristaps 549: return(ARGS_QWORD);
1.1 kristaps 550: }
551:
1.17 kristaps 552: /*
553: * A non-quoted term progresses until either the end of line or
554: * a non-escaped whitespace.
1.1 kristaps 555: */
556:
1.17 kristaps 557: for ( ; buf[*pos]; (*pos)++)
558: if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
559: break;
1.1 kristaps 560:
1.46 kristaps 561: if ('\0' == buf[*pos])
1.17 kristaps 562: return(ARGS_WORD);
1.1 kristaps 563:
1.46 kristaps 564: buf[(*pos)++] = '\0';
1.1 kristaps 565:
1.17 kristaps 566: while (' ' == buf[*pos])
1.1 kristaps 567: (*pos)++;
568:
1.46 kristaps 569: if ('\0' == buf[*pos] && ! (ARGS_NOWARN & fl))
1.49 kristaps 570: if ( ! mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE))
1.17 kristaps 571: return(ARGS_ERROR);
1.1 kristaps 572:
1.17 kristaps 573: return(ARGS_WORD);
1.1 kristaps 574: }
575:
576:
577: static int
1.35 kristaps 578: argv_a2arg(enum mdoct tok, const char *p)
1.1 kristaps 579: {
580:
581: /*
582: * Parse an argument identifier from its text. XXX - this
583: * should really be table-driven to clarify the code.
584: *
585: * If you add an argument to the list, make sure that you
586: * register it here with its one or more macros!
587: */
588:
589: switch (tok) {
590: case (MDOC_An):
1.27 kristaps 591: if (0 == strcmp(p, "split"))
1.1 kristaps 592: return(MDOC_Split);
1.27 kristaps 593: else if (0 == strcmp(p, "nosplit"))
1.1 kristaps 594: return(MDOC_Nosplit);
595: break;
596:
597: case (MDOC_Bd):
1.27 kristaps 598: if (0 == strcmp(p, "ragged"))
1.1 kristaps 599: return(MDOC_Ragged);
1.27 kristaps 600: else if (0 == strcmp(p, "unfilled"))
1.1 kristaps 601: return(MDOC_Unfilled);
1.27 kristaps 602: else if (0 == strcmp(p, "filled"))
1.1 kristaps 603: return(MDOC_Filled);
1.27 kristaps 604: else if (0 == strcmp(p, "literal"))
1.1 kristaps 605: return(MDOC_Literal);
1.27 kristaps 606: else if (0 == strcmp(p, "file"))
1.1 kristaps 607: return(MDOC_File);
1.27 kristaps 608: else if (0 == strcmp(p, "offset"))
1.1 kristaps 609: return(MDOC_Offset);
1.27 kristaps 610: else if (0 == strcmp(p, "compact"))
1.1 kristaps 611: return(MDOC_Compact);
1.28 kristaps 612: else if (0 == strcmp(p, "centered"))
613: return(MDOC_Centred);
1.1 kristaps 614: break;
615:
616: case (MDOC_Bf):
1.27 kristaps 617: if (0 == strcmp(p, "emphasis"))
1.1 kristaps 618: return(MDOC_Emphasis);
1.27 kristaps 619: else if (0 == strcmp(p, "literal"))
1.1 kristaps 620: return(MDOC_Literal);
1.27 kristaps 621: else if (0 == strcmp(p, "symbolic"))
1.1 kristaps 622: return(MDOC_Symbolic);
623: break;
624:
625: case (MDOC_Bk):
1.27 kristaps 626: if (0 == strcmp(p, "words"))
1.1 kristaps 627: return(MDOC_Words);
628: break;
629:
630: case (MDOC_Bl):
1.27 kristaps 631: if (0 == strcmp(p, "bullet"))
1.1 kristaps 632: return(MDOC_Bullet);
1.27 kristaps 633: else if (0 == strcmp(p, "dash"))
1.1 kristaps 634: return(MDOC_Dash);
1.27 kristaps 635: else if (0 == strcmp(p, "hyphen"))
1.1 kristaps 636: return(MDOC_Hyphen);
1.27 kristaps 637: else if (0 == strcmp(p, "item"))
1.1 kristaps 638: return(MDOC_Item);
1.27 kristaps 639: else if (0 == strcmp(p, "enum"))
1.1 kristaps 640: return(MDOC_Enum);
1.27 kristaps 641: else if (0 == strcmp(p, "tag"))
1.1 kristaps 642: return(MDOC_Tag);
1.27 kristaps 643: else if (0 == strcmp(p, "diag"))
1.1 kristaps 644: return(MDOC_Diag);
1.27 kristaps 645: else if (0 == strcmp(p, "hang"))
1.1 kristaps 646: return(MDOC_Hang);
1.27 kristaps 647: else if (0 == strcmp(p, "ohang"))
1.1 kristaps 648: return(MDOC_Ohang);
1.27 kristaps 649: else if (0 == strcmp(p, "inset"))
1.1 kristaps 650: return(MDOC_Inset);
1.27 kristaps 651: else if (0 == strcmp(p, "column"))
1.1 kristaps 652: return(MDOC_Column);
1.27 kristaps 653: else if (0 == strcmp(p, "width"))
1.1 kristaps 654: return(MDOC_Width);
1.27 kristaps 655: else if (0 == strcmp(p, "offset"))
1.1 kristaps 656: return(MDOC_Offset);
1.27 kristaps 657: else if (0 == strcmp(p, "compact"))
1.1 kristaps 658: return(MDOC_Compact);
1.27 kristaps 659: else if (0 == strcmp(p, "nested"))
1.1 kristaps 660: return(MDOC_Nested);
661: break;
662:
663: case (MDOC_Rv):
664: /* FALLTHROUGH */
665: case (MDOC_Ex):
1.27 kristaps 666: if (0 == strcmp(p, "std"))
1.1 kristaps 667: return(MDOC_Std);
668: break;
669: default:
670: break;
671: }
672:
673: return(MDOC_ARG_MAX);
674: }
675:
676:
677: static int
1.11 kristaps 678: argv_multi(struct mdoc *m, int line,
1.1 kristaps 679: struct mdoc_argv *v, int *pos, char *buf)
680: {
1.43 kristaps 681: enum margserr ac;
1.1 kristaps 682: char *p;
683:
684: for (v->sz = 0; ; v->sz++) {
685: if ('-' == buf[*pos])
686: break;
1.43 kristaps 687: ac = args(m, line, pos, buf, 0, &p);
688: if (ARGS_ERROR == ac)
1.1 kristaps 689: return(0);
1.43 kristaps 690: else if (ARGS_EOLN == ac)
1.1 kristaps 691: break;
692:
1.31 kristaps 693: if (0 == v->sz % MULTI_STEP)
694: v->value = mandoc_realloc(v->value,
1.1 kristaps 695: (v->sz + MULTI_STEP) * sizeof(char *));
1.31 kristaps 696:
697: v->value[(int)v->sz] = mandoc_strdup(p);
1.1 kristaps 698: }
699:
1.7 kristaps 700: return(1);
1.1 kristaps 701: }
702:
703:
704: static int
1.11 kristaps 705: argv_opt_single(struct mdoc *m, int line,
1.1 kristaps 706: struct mdoc_argv *v, int *pos, char *buf)
707: {
1.43 kristaps 708: enum margserr ac;
1.1 kristaps 709: char *p;
710:
711: if ('-' == buf[*pos])
712: return(1);
713:
1.43 kristaps 714: ac = args(m, line, pos, buf, 0, &p);
715: if (ARGS_ERROR == ac)
1.1 kristaps 716: return(0);
1.43 kristaps 717: if (ARGS_EOLN == ac)
1.1 kristaps 718: return(1);
719:
720: v->sz = 1;
1.31 kristaps 721: v->value = mandoc_malloc(sizeof(char *));
722: v->value[0] = mandoc_strdup(p);
1.2 kristaps 723:
1.1 kristaps 724: return(1);
725: }
726:
727:
728: /*
729: * Parse a single, mandatory value from the stream.
730: */
731: static int
1.11 kristaps 732: argv_single(struct mdoc *m, int line,
1.1 kristaps 733: struct mdoc_argv *v, int *pos, char *buf)
734: {
1.43 kristaps 735: int ppos;
736: enum margserr ac;
1.1 kristaps 737: char *p;
738:
739: ppos = *pos;
740:
1.43 kristaps 741: ac = args(m, line, pos, buf, 0, &p);
1.49 kristaps 742: if (ARGS_EOLN == ac) {
743: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTARGVCOUNT);
744: return(0);
745: } else if (ARGS_ERROR == ac)
1.1 kristaps 746: return(0);
747:
748: v->sz = 1;
1.31 kristaps 749: v->value = mandoc_malloc(sizeof(char *));
750: v->value[0] = mandoc_strdup(p);
1.2 kristaps 751:
1.1 kristaps 752: return(1);
753: }
754:
755:
756: /*
757: * Determine rules for parsing arguments. Arguments can either accept
758: * no parameters, an optional single parameter, one parameter, or
759: * multiple parameters.
760: */
761: static int
762: argv(struct mdoc *mdoc, int line,
763: struct mdoc_argv *v, int *pos, char *buf)
764: {
765:
766: v->sz = 0;
767: v->value = NULL;
768:
769: switch (mdoc_argvflags[v->arg]) {
770: case (ARGV_SINGLE):
771: return(argv_single(mdoc, line, v, pos, buf));
772: case (ARGV_MULTI):
773: return(argv_multi(mdoc, line, v, pos, buf));
774: case (ARGV_OPT_SINGLE):
775: return(argv_opt_single(mdoc, line, v, pos, buf));
776: default:
777: /* ARGV_NONE */
778: break;
779: }
780:
781: return(1);
782: }
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