Annotation of mandoc/mdoc_argv.c, Revision 1.41
1.41 ! kristaps 1: /* $Id: mdoc_argv.c,v 1.40 2010/05/07 05:54:09 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 *);
1.39 kristaps 48: static enum margserr args(struct mdoc *, int, int *,
1.1 kristaps 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: */
1.40 kristaps 220: enum margverr
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: {
1.37 kristaps 291: int i;
1.1 kristaps 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:
1.37 kristaps 303: for (i = (int)p->argc - 1; i >= 0; i--)
304: mdoc_argn_free(p, i);
305:
306: free(p->argv);
307: free(p);
308: }
309:
310:
311: void
312: mdoc_argn_free(struct mdoc_arg *p, int iarg)
313: {
314: struct mdoc_argv *arg = &p->argv[iarg];
315: int j;
1.1 kristaps 316:
1.37 kristaps 317: if (arg->sz && arg->value) {
318: for (j = (int)arg->sz - 1; j >= 0; j--)
319: free(arg->value[j]);
320: free(arg->value);
1.1 kristaps 321: }
322:
1.37 kristaps 323: for (--p->argc; iarg < (int)p->argc; iarg++)
324: p->argv[iarg] = p->argv[iarg+1];
1.1 kristaps 325: }
326:
327:
1.39 kristaps 328: enum margserr
1.23 kristaps 329: mdoc_zargs(struct mdoc *m, int line, int *pos,
330: char *buf, int flags, char **v)
1.19 kristaps 331: {
332:
1.23 kristaps 333: return(args(m, line, pos, buf, flags, v));
1.19 kristaps 334: }
335:
336:
1.39 kristaps 337: enum margserr
1.35 kristaps 338: mdoc_args(struct mdoc *m, int line, int *pos,
339: char *buf, enum mdoct tok, char **v)
1.1 kristaps 340: {
341: int fl, c, i;
342: struct mdoc_node *n;
343:
1.35 kristaps 344: fl = mdoc_argflags[tok];
1.1 kristaps 345:
1.17 kristaps 346: if (MDOC_It != tok)
347: return(args(m, line, pos, buf, fl, v));
348:
1.1 kristaps 349: /*
1.17 kristaps 350: * The `It' macro is a special case, as it acquires parameters from its
351: * parent `Bl' context, specifically, we're concerned with -column.
1.1 kristaps 352: */
353:
1.17 kristaps 354: for (n = m->last; n; n = n->parent)
355: if (MDOC_BLOCK == n->type && MDOC_Bl == n->tok)
356: break;
1.1 kristaps 357:
1.17 kristaps 358: assert(n);
359: c = (int)(n->args ? n->args->argc : 0);
360: assert(c > 0);
1.1 kristaps 361:
1.17 kristaps 362: /* LINTED */
363: for (i = 0; i < c; i++) {
364: if (MDOC_Column != n->args->argv[i].arg)
365: continue;
366: fl |= ARGS_TABSEP;
367: fl &= ~ARGS_DELIM;
1.1 kristaps 368: break;
369: }
370:
1.11 kristaps 371: return(args(m, line, pos, buf, fl, v));
1.1 kristaps 372: }
373:
374:
1.39 kristaps 375: static enum margserr
1.13 kristaps 376: args(struct mdoc *m, int line, int *pos,
377: char *buf, int fl, char **v)
1.1 kristaps 378: {
1.21 kristaps 379: int i;
1.1 kristaps 380: char *p, *pp;
1.41 ! kristaps 381: enum margserr rc;
1.1 kristaps 382:
1.24 kristaps 383: /*
384: * Parse out the terms (like `val' in `.Xx -arg val' or simply
385: * `.Xx val'), which can have all sorts of properties:
386: *
387: * ARGS_DELIM: use special handling if encountering trailing
388: * delimiters in the form of [[::delim::][ ]+]+.
389: *
390: * ARGS_NOWARN: don't post warnings. This is only used when
391: * re-parsing delimiters, as the warnings have already been
392: * posted.
393: *
394: * ARGS_TABSEP: use special handling for tab/`Ta' separated
395: * phrases like in `Bl -column'.
396: */
397:
1.17 kristaps 398: assert(*pos);
399: assert(' ' != buf[*pos]);
1.1 kristaps 400:
401: if (0 == buf[*pos])
402: return(ARGS_EOLN);
403:
404: /*
405: * If the first character is a delimiter and we're to look for
406: * delimited strings, then pass down the buffer seeing if it
407: * follows the pattern of [[::delim::][ ]+]+.
408: */
409:
1.34 kristaps 410: if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos]) > 1) {
1.1 kristaps 411: for (i = *pos; buf[i]; ) {
1.34 kristaps 412: if ( mdoc_iscdelim(buf[i]) < 2)
1.1 kristaps 413: break;
414: i++;
415: if (0 == buf[i] || ' ' != buf[i])
416: break;
417: i++;
418: while (buf[i] && ' ' == buf[i])
419: i++;
420: }
1.17 kristaps 421:
1.1 kristaps 422: if (0 == buf[i]) {
423: *v = &buf[*pos];
1.23 kristaps 424: if (' ' != buf[i - 1])
425: return(ARGS_PUNCT);
426: if (ARGS_NOWARN & fl)
427: return(ARGS_PUNCT);
428: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
429: return(ARGS_ERROR);
1.1 kristaps 430: return(ARGS_PUNCT);
431: }
432: }
433:
1.17 kristaps 434: *v = &buf[*pos];
1.1 kristaps 435:
1.17 kristaps 436: /*
437: * First handle TABSEP items, restricted to `Bl -column'. This
438: * ignores conventional token parsing and instead uses tabs or
439: * `Ta' macros to separate phrases. Phrases are parsed again
440: * for arguments at a later phase.
441: */
1.1 kristaps 442:
1.17 kristaps 443: if (ARGS_TABSEP & fl) {
1.41 ! kristaps 444: rc = ARGS_PHRASE;
1.20 kristaps 445: /* Scan ahead to tab (can't be escaped). */
1.17 kristaps 446: p = strchr(*v, '\t');
447:
448: /* Scan ahead to unescaped `Ta'. */
449: for (pp = *v; ; pp++) {
450: if (NULL == (pp = strstr(pp, "Ta")))
451: break;
452: if (pp > *v && ' ' != *(pp - 1))
453: continue;
454: if (' ' == *(pp + 2) || 0 == *(pp + 2))
455: break;
456: }
457:
1.21 kristaps 458: /*
459: * Adjust new-buffer position to be beyond delimiter
460: * mark (e.g., Ta -> end + 2).
461: */
1.20 kristaps 462: if (p && pp) {
463: *pos += pp < p ? 2 : 1;
464: p = pp < p ? pp : p;
465: } else if (p && ! pp) {
466: *pos += 1;
467: } else if (pp && ! p) {
1.17 kristaps 468: p = pp;
1.20 kristaps 469: *pos += 2;
470: } else
471: p = strchr(*v, 0);
472:
1.21 kristaps 473: /* Whitespace check for eoln case... */
1.23 kristaps 474: if (0 == *p && ' ' == *(p - 1) && ! (ARGS_NOWARN & fl))
1.20 kristaps 475: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
476: return(ARGS_ERROR);
477:
478: *pos += (int)(p - *v);
1.17 kristaps 479:
480: /* Strip delimiter's preceding whitespace. */
1.20 kristaps 481: pp = p - 1;
482: while (pp > *v && ' ' == *pp) {
483: if (pp > *v && '\\' == *(pp - 1))
484: break;
485: pp--;
1.17 kristaps 486: }
1.20 kristaps 487: *(pp + 1) = 0;
1.17 kristaps 488:
1.20 kristaps 489: /* Strip delimiter's proceeding whitespace. */
490: for (pp = &buf[*pos]; ' ' == *pp; pp++, (*pos)++)
491: /* Skip ahead. */ ;
1.1 kristaps 492:
1.41 ! kristaps 493: return(rc);
1.17 kristaps 494: }
1.1 kristaps 495:
1.17 kristaps 496: /*
497: * Process a quoted literal. A quote begins with a double-quote
498: * and ends with a double-quote NOT preceded by a double-quote.
499: * Whitespace is NOT involved in literal termination.
500: */
1.1 kristaps 501:
1.17 kristaps 502: if ('\"' == buf[*pos]) {
503: *v = &buf[++(*pos)];
1.1 kristaps 504:
1.17 kristaps 505: for ( ; buf[*pos]; (*pos)++) {
506: if ('\"' != buf[*pos])
507: continue;
508: if ('\"' != buf[*pos + 1])
509: break;
510: (*pos)++;
511: }
1.1 kristaps 512:
1.17 kristaps 513: if (0 == buf[*pos]) {
1.23 kristaps 514: if (ARGS_NOWARN & fl)
515: return(ARGS_QWORD);
1.18 kristaps 516: if ( ! mdoc_pwarn(m, line, *pos, EQUOTTERM))
517: return(ARGS_ERROR);
518: return(ARGS_QWORD);
1.17 kristaps 519: }
1.1 kristaps 520:
521: buf[(*pos)++] = 0;
522:
523: if (0 == buf[*pos])
1.17 kristaps 524: return(ARGS_QWORD);
1.1 kristaps 525:
1.17 kristaps 526: while (' ' == buf[*pos])
527: (*pos)++;
1.1 kristaps 528:
1.23 kristaps 529: if (0 == buf[*pos] && ! (ARGS_NOWARN & fl))
1.17 kristaps 530: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
531: return(ARGS_ERROR);
1.1 kristaps 532:
1.17 kristaps 533: return(ARGS_QWORD);
1.1 kristaps 534: }
535:
1.17 kristaps 536: /*
537: * A non-quoted term progresses until either the end of line or
538: * a non-escaped whitespace.
1.1 kristaps 539: */
540:
1.17 kristaps 541: for ( ; buf[*pos]; (*pos)++)
542: if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
543: break;
1.1 kristaps 544:
1.17 kristaps 545: if (0 == buf[*pos])
546: return(ARGS_WORD);
1.1 kristaps 547:
548: buf[(*pos)++] = 0;
549:
1.17 kristaps 550: while (' ' == buf[*pos])
1.1 kristaps 551: (*pos)++;
552:
1.23 kristaps 553: if (0 == buf[*pos] && ! (ARGS_NOWARN & fl))
1.17 kristaps 554: if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
555: return(ARGS_ERROR);
1.1 kristaps 556:
1.17 kristaps 557: return(ARGS_WORD);
1.1 kristaps 558: }
559:
560:
561: static int
1.35 kristaps 562: argv_a2arg(enum mdoct tok, const char *p)
1.1 kristaps 563: {
564:
565: /*
566: * Parse an argument identifier from its text. XXX - this
567: * should really be table-driven to clarify the code.
568: *
569: * If you add an argument to the list, make sure that you
570: * register it here with its one or more macros!
571: */
572:
573: switch (tok) {
574: case (MDOC_An):
1.27 kristaps 575: if (0 == strcmp(p, "split"))
1.1 kristaps 576: return(MDOC_Split);
1.27 kristaps 577: else if (0 == strcmp(p, "nosplit"))
1.1 kristaps 578: return(MDOC_Nosplit);
579: break;
580:
581: case (MDOC_Bd):
1.27 kristaps 582: if (0 == strcmp(p, "ragged"))
1.1 kristaps 583: return(MDOC_Ragged);
1.27 kristaps 584: else if (0 == strcmp(p, "unfilled"))
1.1 kristaps 585: return(MDOC_Unfilled);
1.27 kristaps 586: else if (0 == strcmp(p, "filled"))
1.1 kristaps 587: return(MDOC_Filled);
1.27 kristaps 588: else if (0 == strcmp(p, "literal"))
1.1 kristaps 589: return(MDOC_Literal);
1.27 kristaps 590: else if (0 == strcmp(p, "file"))
1.1 kristaps 591: return(MDOC_File);
1.27 kristaps 592: else if (0 == strcmp(p, "offset"))
1.1 kristaps 593: return(MDOC_Offset);
1.27 kristaps 594: else if (0 == strcmp(p, "compact"))
1.1 kristaps 595: return(MDOC_Compact);
1.28 kristaps 596: else if (0 == strcmp(p, "centered"))
597: return(MDOC_Centred);
1.1 kristaps 598: break;
599:
600: case (MDOC_Bf):
1.27 kristaps 601: if (0 == strcmp(p, "emphasis"))
1.1 kristaps 602: return(MDOC_Emphasis);
1.27 kristaps 603: else if (0 == strcmp(p, "literal"))
1.1 kristaps 604: return(MDOC_Literal);
1.27 kristaps 605: else if (0 == strcmp(p, "symbolic"))
1.1 kristaps 606: return(MDOC_Symbolic);
607: break;
608:
609: case (MDOC_Bk):
1.27 kristaps 610: if (0 == strcmp(p, "words"))
1.1 kristaps 611: return(MDOC_Words);
612: break;
613:
614: case (MDOC_Bl):
1.27 kristaps 615: if (0 == strcmp(p, "bullet"))
1.1 kristaps 616: return(MDOC_Bullet);
1.27 kristaps 617: else if (0 == strcmp(p, "dash"))
1.1 kristaps 618: return(MDOC_Dash);
1.27 kristaps 619: else if (0 == strcmp(p, "hyphen"))
1.1 kristaps 620: return(MDOC_Hyphen);
1.27 kristaps 621: else if (0 == strcmp(p, "item"))
1.1 kristaps 622: return(MDOC_Item);
1.27 kristaps 623: else if (0 == strcmp(p, "enum"))
1.1 kristaps 624: return(MDOC_Enum);
1.27 kristaps 625: else if (0 == strcmp(p, "tag"))
1.1 kristaps 626: return(MDOC_Tag);
1.27 kristaps 627: else if (0 == strcmp(p, "diag"))
1.1 kristaps 628: return(MDOC_Diag);
1.27 kristaps 629: else if (0 == strcmp(p, "hang"))
1.1 kristaps 630: return(MDOC_Hang);
1.27 kristaps 631: else if (0 == strcmp(p, "ohang"))
1.1 kristaps 632: return(MDOC_Ohang);
1.27 kristaps 633: else if (0 == strcmp(p, "inset"))
1.1 kristaps 634: return(MDOC_Inset);
1.27 kristaps 635: else if (0 == strcmp(p, "column"))
1.1 kristaps 636: return(MDOC_Column);
1.27 kristaps 637: else if (0 == strcmp(p, "width"))
1.1 kristaps 638: return(MDOC_Width);
1.27 kristaps 639: else if (0 == strcmp(p, "offset"))
1.1 kristaps 640: return(MDOC_Offset);
1.27 kristaps 641: else if (0 == strcmp(p, "compact"))
1.1 kristaps 642: return(MDOC_Compact);
1.27 kristaps 643: else if (0 == strcmp(p, "nested"))
1.1 kristaps 644: return(MDOC_Nested);
645: break;
646:
647: case (MDOC_Rv):
648: /* FALLTHROUGH */
649: case (MDOC_Ex):
1.27 kristaps 650: if (0 == strcmp(p, "std"))
1.1 kristaps 651: return(MDOC_Std);
652: break;
653: default:
654: break;
655: }
656:
657: return(MDOC_ARG_MAX);
658: }
659:
660:
661: static int
1.11 kristaps 662: argv_multi(struct mdoc *m, int line,
1.1 kristaps 663: struct mdoc_argv *v, int *pos, char *buf)
664: {
1.8 kristaps 665: int c;
1.1 kristaps 666: char *p;
667:
668: for (v->sz = 0; ; v->sz++) {
669: if ('-' == buf[*pos])
670: break;
1.17 kristaps 671: c = args(m, line, pos, buf, 0, &p);
1.1 kristaps 672: if (ARGS_ERROR == c)
673: return(0);
674: else if (ARGS_EOLN == c)
675: break;
676:
1.31 kristaps 677: if (0 == v->sz % MULTI_STEP)
678: v->value = mandoc_realloc(v->value,
1.1 kristaps 679: (v->sz + MULTI_STEP) * sizeof(char *));
1.31 kristaps 680:
681: v->value[(int)v->sz] = mandoc_strdup(p);
1.1 kristaps 682: }
683:
1.7 kristaps 684: return(1);
1.1 kristaps 685: }
686:
687:
688: static int
1.11 kristaps 689: argv_opt_single(struct mdoc *m, int line,
1.1 kristaps 690: struct mdoc_argv *v, int *pos, char *buf)
691: {
692: int c;
693: char *p;
694:
695: if ('-' == buf[*pos])
696: return(1);
697:
1.17 kristaps 698: c = args(m, line, pos, buf, 0, &p);
1.1 kristaps 699: if (ARGS_ERROR == c)
700: return(0);
701: if (ARGS_EOLN == c)
702: return(1);
703:
704: v->sz = 1;
1.31 kristaps 705: v->value = mandoc_malloc(sizeof(char *));
706: v->value[0] = mandoc_strdup(p);
1.2 kristaps 707:
1.1 kristaps 708: return(1);
709: }
710:
711:
712: /*
713: * Parse a single, mandatory value from the stream.
714: */
715: static int
1.11 kristaps 716: argv_single(struct mdoc *m, int line,
1.1 kristaps 717: struct mdoc_argv *v, int *pos, char *buf)
718: {
719: int c, ppos;
720: char *p;
721:
722: ppos = *pos;
723:
1.17 kristaps 724: c = args(m, line, pos, buf, 0, &p);
1.1 kristaps 725: if (ARGS_ERROR == c)
726: return(0);
727: if (ARGS_EOLN == c)
1.11 kristaps 728: return(mdoc_perr(m, line, ppos, EARGVAL));
1.1 kristaps 729:
730: v->sz = 1;
1.31 kristaps 731: v->value = mandoc_malloc(sizeof(char *));
732: v->value[0] = mandoc_strdup(p);
1.2 kristaps 733:
1.1 kristaps 734: return(1);
735: }
736:
737:
738: /*
739: * Determine rules for parsing arguments. Arguments can either accept
740: * no parameters, an optional single parameter, one parameter, or
741: * multiple parameters.
742: */
743: static int
744: argv(struct mdoc *mdoc, int line,
745: struct mdoc_argv *v, int *pos, char *buf)
746: {
747:
748: v->sz = 0;
749: v->value = NULL;
750:
751: switch (mdoc_argvflags[v->arg]) {
752: case (ARGV_SINGLE):
753: return(argv_single(mdoc, line, v, pos, buf));
754: case (ARGV_MULTI):
755: return(argv_multi(mdoc, line, v, pos, buf));
756: case (ARGV_OPT_SINGLE):
757: return(argv_opt_single(mdoc, line, v, pos, buf));
758: default:
759: /* ARGV_NONE */
760: break;
761: }
762:
763: return(1);
764: }
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