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1.33 ! kristaps 1: /* $Id: argv.c,v 1.32 2009/02/26 14:56:27 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the
7: * above copyright notice and this permission notice appear in all
8: * copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11: * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12: * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13: * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16: * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17: * PERFORMANCE OF THIS SOFTWARE.
18: */
19: #include <assert.h>
20: #include <ctype.h>
21: #include <err.h>
22: #include <stdlib.h>
23: #include <stdio.h>
24: #include <string.h>
25:
26: #include "private.h"
27:
1.20 kristaps 28: /*
1.27 kristaps 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.
1.20 kristaps 32: */
33:
1.24 kristaps 34: #define ARGS_QUOTED (1 << 0)
35: #define ARGS_DELIM (1 << 1)
36: #define ARGS_TABSEP (1 << 2)
1.15 kristaps 37:
1.30 kristaps 38: static int argv_a2arg(int, const char *);
1.26 kristaps 39: static int args(struct mdoc *, int, int *,
40: char *, int, char **);
41: static int argv(struct mdoc *, int,
1.2 kristaps 42: struct mdoc_arg *, int *, char *);
1.26 kristaps 43: static int argv_single(struct mdoc *, int,
1.12 kristaps 44: struct mdoc_arg *, int *, char *);
1.26 kristaps 45: static int argv_multi(struct mdoc *, int,
1.12 kristaps 46: struct mdoc_arg *, int *, char *);
1.24 kristaps 47: static int pwarn(struct mdoc *, int, int, int);
1.25 kristaps 48: static int perr(struct mdoc *, int, int, int);
1.1 kristaps 49:
1.26 kristaps 50: /* Warning messages. */
51:
1.24 kristaps 52: #define WQUOTPARM (0)
53: #define WARGVPARM (1)
1.25 kristaps 54: #define WCOLEMPTY (2)
55: #define WTAILWS (3)
56:
1.26 kristaps 57: /* Error messages. */
58:
1.25 kristaps 59: #define EQUOTTERM (0)
1.28 kristaps 60: #define EARGVAL (1)
61: #define EARGMANY (2)
1.22 kristaps 62:
63: static int mdoc_argflags[MDOC_MAX] = {
64: 0, /* \" */
65: 0, /* Dd */
66: 0, /* Dt */
67: 0, /* Os */
68: 0, /* Sh */
69: 0, /* Ss */
70: ARGS_DELIM, /* Pp */
71: ARGS_DELIM, /* D1 */
72: ARGS_DELIM, /* Dl */
73: 0, /* Bd */
74: 0, /* Ed */
75: 0, /* Bl */
76: 0, /* El */
1.32 kristaps 77: 0, /* It */
1.22 kristaps 78: ARGS_DELIM, /* Ad */
79: ARGS_DELIM, /* An */
80: ARGS_DELIM, /* Ar */
81: ARGS_QUOTED, /* Cd */
82: ARGS_DELIM, /* Cm */
83: ARGS_DELIM, /* Dv */
84: ARGS_DELIM, /* Er */
85: ARGS_DELIM, /* Ev */
86: 0, /* Ex */
87: ARGS_DELIM | ARGS_QUOTED, /* Fa */
88: 0, /* Fd */
89: ARGS_DELIM, /* Fl */
90: ARGS_DELIM | ARGS_QUOTED, /* Fn */
91: ARGS_DELIM | ARGS_QUOTED, /* Ft */
92: ARGS_DELIM, /* Ic */
93: 0, /* In */
94: ARGS_DELIM, /* Li */
95: 0, /* Nd */
96: ARGS_DELIM, /* Nm */
97: ARGS_DELIM, /* Op */
98: 0, /* Ot */
99: ARGS_DELIM, /* Pa */
100: 0, /* Rv */
101: ARGS_DELIM, /* St */
102: ARGS_DELIM, /* Va */
103: ARGS_DELIM, /* Vt */
104: ARGS_DELIM, /* Xr */
105: ARGS_QUOTED, /* %A */
106: ARGS_QUOTED, /* %B */
107: ARGS_QUOTED, /* %D */
108: ARGS_QUOTED, /* %I */
109: ARGS_QUOTED, /* %J */
110: ARGS_QUOTED, /* %N */
111: ARGS_QUOTED, /* %O */
112: ARGS_QUOTED, /* %P */
113: ARGS_QUOTED, /* %R */
114: ARGS_QUOTED, /* %T */
115: ARGS_QUOTED, /* %V */
116: ARGS_DELIM, /* Ac */
117: 0, /* Ao */
118: ARGS_DELIM, /* Aq */
119: ARGS_DELIM, /* At */
120: ARGS_DELIM, /* Bc */
121: 0, /* Bf */
122: 0, /* Bo */
123: ARGS_DELIM, /* Bq */
124: ARGS_DELIM, /* Bsx */
125: ARGS_DELIM, /* Bx */
126: 0, /* Db */
127: ARGS_DELIM, /* Dc */
128: 0, /* Do */
129: ARGS_DELIM, /* Dq */
130: ARGS_DELIM, /* Ec */
131: 0, /* Ef */
132: ARGS_DELIM, /* Em */
133: 0, /* Eo */
134: ARGS_DELIM, /* Fx */
135: ARGS_DELIM, /* Ms */
136: ARGS_DELIM, /* No */
137: ARGS_DELIM, /* Ns */
138: ARGS_DELIM, /* Nx */
139: ARGS_DELIM, /* Ox */
140: ARGS_DELIM, /* Pc */
141: ARGS_DELIM, /* Pf */
142: 0, /* Po */
143: ARGS_DELIM, /* Pq */
144: ARGS_DELIM, /* Qc */
145: ARGS_DELIM, /* Ql */
146: 0, /* Qo */
147: ARGS_DELIM, /* Qq */
148: 0, /* Re */
149: 0, /* Rs */
150: ARGS_DELIM, /* Sc */
151: 0, /* So */
152: ARGS_DELIM, /* Sq */
153: 0, /* Sm */
154: ARGS_DELIM, /* Sx */
155: ARGS_DELIM, /* Sy */
156: ARGS_DELIM, /* Tn */
157: ARGS_DELIM, /* Ux */
158: ARGS_DELIM, /* Xc */
159: 0, /* Xo */
160: 0, /* Fo */
161: 0, /* Fc */
162: 0, /* Oo */
163: ARGS_DELIM, /* Oc */
164: 0, /* Bk */
165: 0, /* Ek */
166: 0, /* Bt */
167: 0, /* Hf */
168: 0, /* Fr */
169: 0, /* Ud */
170: };
171:
1.1 kristaps 172:
1.24 kristaps 173: static int
1.25 kristaps 174: perr(struct mdoc *mdoc, int line, int pos, int code)
175: {
176: int c;
177:
178: switch (code) {
179: case (EQUOTTERM):
180: c = mdoc_perr(mdoc, line, pos,
181: "unterminated quoted parameter");
182: break;
183: case (EARGVAL):
184: c = mdoc_perr(mdoc, line, pos,
185: "argument requires a value");
186: break;
187: case (EARGMANY):
188: c = mdoc_perr(mdoc, line, pos,
189: "too many values for argument");
190: break;
191: default:
192: abort();
193: /* NOTREACHED */
194: }
195: return(c);
196: }
197:
198:
199: static int
1.24 kristaps 200: pwarn(struct mdoc *mdoc, int line, int pos, int code)
201: {
202: int c;
203:
204: switch (code) {
205: case (WQUOTPARM):
206: c = mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX,
207: "unexpected quoted parameter");
208: break;
209: case (WARGVPARM):
210: c = mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX,
211: "argument-like parameter");
212: break;
1.25 kristaps 213: case (WCOLEMPTY):
214: c = mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX,
215: "last list column is empty");
216: break;
217: case (WTAILWS):
218: c = mdoc_pwarn(mdoc, line, pos, WARN_COMPAT,
219: "trailing whitespace");
220: break;
1.24 kristaps 221: default:
222: abort();
223: /* NOTREACHED */
224: }
225: return(c);
226: }
227:
228:
1.2 kristaps 229: int
1.22 kristaps 230: mdoc_args(struct mdoc *mdoc, int line,
231: int *pos, char *buf, int tok, char **v)
1.1 kristaps 232: {
1.26 kristaps 233: int fl, c, i;
1.22 kristaps 234: struct mdoc_node *n;
235:
1.24 kristaps 236: fl = (0 == tok) ? 0 : mdoc_argflags[tok];
237:
238: /*
239: * First see if we should use TABSEP (Bl -column). This
240: * invalidates the use of ARGS_DELIM.
241: */
242:
243: if (MDOC_It == tok) {
244: for (n = mdoc->last; n; n = n->parent)
245: if (MDOC_BLOCK == n->type)
246: if (MDOC_Bl == n->tok)
247: break;
248: assert(n);
249: c = (int)n->data.block.argc;
250: assert(c > 0);
1.26 kristaps 251:
252: /* LINTED */
1.24 kristaps 253: for (i = 0; i < c; i++) {
254: if (MDOC_Column != n->data.block.argv[i].arg)
255: continue;
256: fl |= ARGS_TABSEP;
257: fl &= ~ARGS_DELIM;
1.26 kristaps 258: break;
1.24 kristaps 259: }
260: }
261:
1.26 kristaps 262: return(args(mdoc, line, pos, buf, fl, v));
263: }
264:
265:
266: static int
267: args(struct mdoc *mdoc, int line,
268: int *pos, char *buf, int fl, char **v)
269: {
1.31 kristaps 270: int i;
1.26 kristaps 271: char *p, *pp;
272:
273: assert(*pos > 0);
274:
275: if (0 == buf[*pos])
276: return(ARGS_EOLN);
277:
278: if ('\"' == buf[*pos] && ! (fl & ARGS_QUOTED))
279: if ( ! pwarn(mdoc, line, *pos, WQUOTPARM))
280: return(ARGS_ERROR);
281:
282: if ('-' == buf[*pos])
283: if ( ! pwarn(mdoc, line, *pos, WARGVPARM))
284: return(ARGS_ERROR);
285:
1.24 kristaps 286: /*
287: * If the first character is a delimiter and we're to look for
288: * delimited strings, then pass down the buffer seeing if it
289: * follows the pattern of [[::delim::][ ]+]+.
290: */
291:
1.2 kristaps 292: if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos])) {
1.31 kristaps 293: for (i = *pos; buf[i]; ) {
294: if ( ! mdoc_iscdelim(buf[i]))
1.2 kristaps 295: break;
296: i++;
1.31 kristaps 297: while (buf[i] && isspace((int)buf[i]))
1.2 kristaps 298: i++;
299: }
300: if (0 == buf[i]) {
301: *v = &buf[*pos];
302: return(ARGS_PUNCT);
303: }
304: }
305:
1.24 kristaps 306: /* First parse non-quoted strings. */
1.1 kristaps 307:
1.17 kristaps 308: if ('\"' != buf[*pos] || ! (ARGS_QUOTED & fl)) {
1.1 kristaps 309: *v = &buf[*pos];
310:
1.24 kristaps 311: /*
312: * Thar be dragons here! If we're tab-separated, search
313: * ahead for either a tab or the `Ta' macro. If a tab
314: * is detected, it mustn't be escaped; if a `Ta' is
315: * detected, it must be space-buffered before and after.
316: * If either of these hold true, then prune out the
317: * extra spaces and call it an argument.
318: */
319:
320: if (ARGS_TABSEP & fl) {
321: /* Scan ahead to unescaped tab. */
1.12 kristaps 322:
1.24 kristaps 323: for (p = *v; ; p++) {
324: if (NULL == (p = strchr(p, '\t')))
325: break;
326: if (p == *v)
327: break;
328: if ('\\' != *(p - 1))
1.12 kristaps 329: break;
330: }
1.24 kristaps 331:
332: /* Scan ahead to unescaped `Ta'. */
333:
334: for (pp = *v; ; pp++) {
335: if (NULL == (pp = strstr(pp, "Ta")))
336: break;
337: if (pp > *v && ' ' != *(pp - 1))
338: continue;
339: if (' ' == *(pp + 2) || 0 == *(pp + 2))
340: break;
341: }
342:
343: /* Choose delimiter tab/Ta. */
344:
345: if (p && pp)
346: p = (p < pp ? p : pp);
347: else if ( ! p && pp)
348: p = pp;
349:
350: /* Strip delimiter's preceding whitespace. */
351:
352: if (p && p > *v) {
353: pp = p - 1;
354: while (pp > *v && ' ' == *pp)
355: pp--;
356: if (pp == *v && ' ' == *pp)
357: *pp = 0;
358: else if (' ' == *pp)
359: *(pp + 1) = 0;
360: }
361:
362: /* ...in- and proceding whitespace. */
363:
364: if (p && ('\t' != *p)) {
365: *p++ = 0;
366: *p++ = 0;
367: } else if (p)
368: *p++ = 0;
369:
370: if (p) {
371: while (' ' == *p)
372: p++;
373: if (0 != *p)
374: *(p - 1) = 0;
1.33 ! kristaps 375: *pos += (int)(p - *v);
1.24 kristaps 376: }
377:
1.25 kristaps 378: if (p && 0 == *p)
379: if ( ! pwarn(mdoc, line, *pos, WCOLEMPTY))
380: return(0);
381: if (p && 0 == *p && p > *v && ' ' == *(p - 1))
382: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
383: return(0);
384:
1.26 kristaps 385: if (p)
386: return(ARGS_WORD);
387:
1.24 kristaps 388: /* Configure the eoln case, too. */
389:
1.26 kristaps 390: p = strchr(*v, 0);
391: assert(p);
392:
393: if (p > *v && ' ' == *(p - 1))
394: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
395: return(0);
1.33 ! kristaps 396: *pos += (int)(p - *v);
1.24 kristaps 397:
398: return(ARGS_WORD);
399: }
400:
401: /* Do non-tabsep look-ahead here. */
402:
403: if ( ! (ARGS_TABSEP & fl))
1.31 kristaps 404: while (buf[*pos]) {
405: if (isspace((int)buf[*pos]))
1.17 kristaps 406: if ('\\' != buf[*pos - 1])
407: break;
1.12 kristaps 408: (*pos)++;
1.17 kristaps 409: }
1.1 kristaps 410:
411: if (0 == buf[*pos])
1.2 kristaps 412: return(ARGS_WORD);
1.1 kristaps 413:
414: buf[(*pos)++] = 0;
1.12 kristaps 415:
1.1 kristaps 416: if (0 == buf[*pos])
1.2 kristaps 417: return(ARGS_WORD);
1.1 kristaps 418:
1.12 kristaps 419: if ( ! (ARGS_TABSEP & fl))
1.21 kristaps 420: while (buf[*pos] && isspace((int)buf[*pos]))
1.12 kristaps 421: (*pos)++;
1.1 kristaps 422:
423: if (buf[*pos])
1.2 kristaps 424: return(ARGS_WORD);
1.1 kristaps 425:
1.25 kristaps 426: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
1.2 kristaps 427: return(ARGS_ERROR);
1.1 kristaps 428:
1.2 kristaps 429: return(ARGS_WORD);
430: }
431:
432: /*
433: * If we're a quoted string (and quoted strings are allowed),
434: * then parse ahead to the next quote. If none's found, it's an
1.4 kristaps 435: * error. After, parse to the next word.
1.2 kristaps 436: */
1.1 kristaps 437:
438: *v = &buf[++(*pos)];
439:
440: while (buf[*pos] && '\"' != buf[*pos])
441: (*pos)++;
442:
443: if (0 == buf[*pos]) {
1.25 kristaps 444: (void)perr(mdoc, line, *pos, EQUOTTERM);
1.2 kristaps 445: return(ARGS_ERROR);
1.1 kristaps 446: }
447:
448: buf[(*pos)++] = 0;
449: if (0 == buf[*pos])
1.19 kristaps 450: return(ARGS_QWORD);
1.1 kristaps 451:
1.21 kristaps 452: while (buf[*pos] && isspace((int)buf[*pos]))
1.1 kristaps 453: (*pos)++;
454:
455: if (buf[*pos])
1.19 kristaps 456: return(ARGS_QWORD);
1.1 kristaps 457:
1.25 kristaps 458: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
1.2 kristaps 459: return(ARGS_ERROR);
460:
1.19 kristaps 461: return(ARGS_QWORD);
1.1 kristaps 462: }
463:
464:
1.2 kristaps 465: static int
1.30 kristaps 466: argv_a2arg(int tok, const char *argv)
1.1 kristaps 467: {
468:
469: switch (tok) {
1.6 kristaps 470: case (MDOC_An):
471: if (xstrcmp(argv, "split"))
472: return(MDOC_Split);
473: else if (xstrcmp(argv, "nosplit"))
474: return(MDOC_Nosplit);
475: break;
476:
1.2 kristaps 477: case (MDOC_Bd):
1.1 kristaps 478: if (xstrcmp(argv, "ragged"))
479: return(MDOC_Ragged);
480: else if (xstrcmp(argv, "unfilled"))
481: return(MDOC_Unfilled);
1.13 kristaps 482: else if (xstrcmp(argv, "filled"))
483: return(MDOC_Filled);
1.1 kristaps 484: else if (xstrcmp(argv, "literal"))
485: return(MDOC_Literal);
486: else if (xstrcmp(argv, "file"))
487: return(MDOC_File);
488: else if (xstrcmp(argv, "offset"))
489: return(MDOC_Offset);
1.2 kristaps 490: break;
491:
1.8 kristaps 492: case (MDOC_Bf):
493: if (xstrcmp(argv, "emphasis"))
494: return(MDOC_Emphasis);
495: else if (xstrcmp(argv, "literal"))
496: return(MDOC_Literal);
497: else if (xstrcmp(argv, "symbolic"))
498: return(MDOC_Symbolic);
499: break;
500:
1.7 kristaps 501: case (MDOC_Bk):
502: if (xstrcmp(argv, "words"))
503: return(MDOC_Words);
504: break;
505:
1.2 kristaps 506: case (MDOC_Bl):
507: if (xstrcmp(argv, "bullet"))
1.1 kristaps 508: return(MDOC_Bullet);
509: else if (xstrcmp(argv, "dash"))
510: return(MDOC_Dash);
511: else if (xstrcmp(argv, "hyphen"))
512: return(MDOC_Hyphen);
513: else if (xstrcmp(argv, "item"))
514: return(MDOC_Item);
515: else if (xstrcmp(argv, "enum"))
516: return(MDOC_Enum);
517: else if (xstrcmp(argv, "tag"))
518: return(MDOC_Tag);
519: else if (xstrcmp(argv, "diag"))
520: return(MDOC_Diag);
521: else if (xstrcmp(argv, "hang"))
522: return(MDOC_Hang);
523: else if (xstrcmp(argv, "ohang"))
524: return(MDOC_Ohang);
525: else if (xstrcmp(argv, "inset"))
526: return(MDOC_Inset);
527: else if (xstrcmp(argv, "column"))
528: return(MDOC_Column);
529: else if (xstrcmp(argv, "width"))
530: return(MDOC_Width);
1.2 kristaps 531: else if (xstrcmp(argv, "offset"))
532: return(MDOC_Offset);
1.1 kristaps 533: else if (xstrcmp(argv, "compact"))
534: return(MDOC_Compact);
1.2 kristaps 535: break;
1.3 kristaps 536:
537: case (MDOC_Rv):
538: /* FALLTHROUGH */
539: case (MDOC_Ex):
540: if (xstrcmp(argv, "std"))
541: return(MDOC_Std);
542: break;
1.5 kristaps 543:
544: case (MDOC_St):
545: if (xstrcmp(argv, "p1003.1-88"))
546: return(MDOC_p1003_1_88);
547: else if (xstrcmp(argv, "p1003.1-90"))
548: return(MDOC_p1003_1_90);
549: else if (xstrcmp(argv, "p1003.1-96"))
550: return(MDOC_p1003_1_96);
551: else if (xstrcmp(argv, "p1003.1-2001"))
552: return(MDOC_p1003_1_2001);
553: else if (xstrcmp(argv, "p1003.1-2004"))
554: return(MDOC_p1003_1_2004);
555: else if (xstrcmp(argv, "p1003.1"))
556: return(MDOC_p1003_1);
557: else if (xstrcmp(argv, "p1003.1b"))
558: return(MDOC_p1003_1b);
559: else if (xstrcmp(argv, "p1003.1b-93"))
560: return(MDOC_p1003_1b_93);
561: else if (xstrcmp(argv, "p1003.1c-95"))
562: return(MDOC_p1003_1c_95);
563: else if (xstrcmp(argv, "p1003.1g-2000"))
564: return(MDOC_p1003_1g_2000);
565: else if (xstrcmp(argv, "p1003.2-92"))
566: return(MDOC_p1003_2_92);
567: else if (xstrcmp(argv, "p1003.2-95"))
568: return(MDOC_p1387_2_95);
569: else if (xstrcmp(argv, "p1003.2"))
570: return(MDOC_p1003_2);
571: else if (xstrcmp(argv, "p1387.2-95"))
572: return(MDOC_p1387_2);
573: else if (xstrcmp(argv, "isoC-90"))
574: return(MDOC_isoC_90);
575: else if (xstrcmp(argv, "isoC-amd1"))
576: return(MDOC_isoC_amd1);
577: else if (xstrcmp(argv, "isoC-tcor1"))
578: return(MDOC_isoC_tcor1);
579: else if (xstrcmp(argv, "isoC-tcor2"))
580: return(MDOC_isoC_tcor2);
581: else if (xstrcmp(argv, "isoC-99"))
582: return(MDOC_isoC_99);
583: else if (xstrcmp(argv, "ansiC"))
584: return(MDOC_ansiC);
585: else if (xstrcmp(argv, "ansiC-89"))
586: return(MDOC_ansiC_89);
587: else if (xstrcmp(argv, "ansiC-99"))
588: return(MDOC_ansiC_99);
589: else if (xstrcmp(argv, "ieee754"))
590: return(MDOC_ieee754);
591: else if (xstrcmp(argv, "iso8802-3"))
592: return(MDOC_iso8802_3);
593: else if (xstrcmp(argv, "xpg3"))
594: return(MDOC_xpg3);
595: else if (xstrcmp(argv, "xpg4"))
596: return(MDOC_xpg4);
597: else if (xstrcmp(argv, "xpg4.2"))
598: return(MDOC_xpg4_2);
599: else if (xstrcmp(argv, "xpg4.3"))
600: return(MDOC_xpg4_3);
601: else if (xstrcmp(argv, "xbd5"))
602: return(MDOC_xbd5);
603: else if (xstrcmp(argv, "xcu5"))
604: return(MDOC_xcu5);
605: else if (xstrcmp(argv, "xsh5"))
606: return(MDOC_xsh5);
607: else if (xstrcmp(argv, "xns5"))
608: return(MDOC_xns5);
609: else if (xstrcmp(argv, "xns5.2d2.0"))
610: return(MDOC_xns5_2d2_0);
611: else if (xstrcmp(argv, "xcurses4.2"))
612: return(MDOC_xcurses4_2);
613: else if (xstrcmp(argv, "susv2"))
614: return(MDOC_susv2);
615: else if (xstrcmp(argv, "susv3"))
616: return(MDOC_susv3);
617: else if (xstrcmp(argv, "svid4"))
618: return(MDOC_svid4);
619: break;
1.1 kristaps 620:
621: default:
1.8 kristaps 622: break;
1.1 kristaps 623: }
624:
625: return(MDOC_ARG_MAX);
626: }
627:
628:
1.2 kristaps 629: static int
1.26 kristaps 630: argv_multi(struct mdoc *mdoc, int line,
1.12 kristaps 631: struct mdoc_arg *v, int *pos, char *buf)
632: {
633: int c, ppos;
634: char *p;
635:
636: v->sz = 0;
637: v->value = xcalloc(MDOC_LINEARG_MAX, sizeof(char *));
638:
639: ppos = *pos;
640:
641: for (v->sz = 0; v->sz < MDOC_LINEARG_MAX; v->sz++) {
642: if ('-' == buf[*pos])
643: break;
1.26 kristaps 644: c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p);
1.12 kristaps 645: if (ARGS_ERROR == c) {
646: free(v->value);
647: return(0);
648: } else if (ARGS_EOLN == c)
649: break;
1.33 ! kristaps 650: v->value[(int)v->sz] = p;
1.12 kristaps 651: }
652:
653: if (0 < v->sz && v->sz < MDOC_LINEARG_MAX)
654: return(1);
655:
656: free(v->value);
1.25 kristaps 657: if (0 == v->sz)
658: return(perr(mdoc, line, ppos, EARGVAL));
659:
660: return(perr(mdoc, line, ppos, EARGMANY));
1.12 kristaps 661: }
662:
663:
664: static int
1.26 kristaps 665: argv_single(struct mdoc *mdoc, int line,
1.1 kristaps 666: struct mdoc_arg *v, int *pos, char *buf)
667: {
1.12 kristaps 668: int c, ppos;
1.1 kristaps 669: char *p;
670:
671: ppos = *pos;
672:
1.26 kristaps 673: c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p);
1.12 kristaps 674: if (ARGS_ERROR == c)
675: return(0);
676: if (ARGS_EOLN == c)
1.25 kristaps 677: return(perr(mdoc, line, ppos, EARGVAL));
1.12 kristaps 678:
679: v->sz = 1;
680: v->value = xcalloc(1, sizeof(char *));
681: v->value[0] = p;
682: return(1);
683: }
684:
685:
686: static int
1.26 kristaps 687: argv(struct mdoc *mdoc, int line,
1.12 kristaps 688: struct mdoc_arg *v, int *pos, char *buf)
689: {
690:
691: v->sz = 0;
692: v->value = NULL;
693:
1.2 kristaps 694: switch (v->arg) {
1.3 kristaps 695: case(MDOC_Std):
696: /* FALLTHROUGH */
1.1 kristaps 697: case(MDOC_Width):
698: /* FALLTHROUGH */
699: case(MDOC_Offset):
1.26 kristaps 700: return(argv_single(mdoc, line, v, pos, buf));
1.1 kristaps 701: case(MDOC_Column):
1.26 kristaps 702: return(argv_multi(mdoc, line, v, pos, buf));
1.1 kristaps 703: default:
1.6 kristaps 704: break;
1.1 kristaps 705: }
706:
707: return(1);
708: }
709:
710:
1.2 kristaps 711: int
1.9 kristaps 712: mdoc_argv(struct mdoc *mdoc, int line, int tok,
1.2 kristaps 713: struct mdoc_arg *v, int *pos, char *buf)
714: {
1.29 kristaps 715: int i;
1.26 kristaps 716: char *p;
1.2 kristaps 717:
718: (void)memset(v, 0, sizeof(struct mdoc_arg));
719:
720: if (0 == buf[*pos])
1.5 kristaps 721: return(ARGV_EOLN);
1.2 kristaps 722:
1.21 kristaps 723: assert( ! isspace((int)buf[*pos]));
1.2 kristaps 724:
1.5 kristaps 725: if ('-' != buf[*pos])
726: return(ARGV_WORD);
1.2 kristaps 727:
728: i = *pos;
1.26 kristaps 729: p = &buf[++(*pos)];
1.2 kristaps 730:
1.11 kristaps 731: v->line = line;
732: v->pos = *pos;
733:
1.17 kristaps 734: assert(*pos > 0);
1.26 kristaps 735:
736: /* LINTED */
1.17 kristaps 737: while (buf[*pos]) {
1.21 kristaps 738: if (isspace((int)buf[*pos]))
1.17 kristaps 739: if ('\\' != buf[*pos - 1])
740: break;
1.2 kristaps 741: (*pos)++;
1.17 kristaps 742: }
1.2 kristaps 743:
744: if (buf[*pos])
745: buf[(*pos)++] = 0;
746:
1.30 kristaps 747: if (MDOC_ARG_MAX == (v->arg = argv_a2arg(tok, p))) {
1.25 kristaps 748: if ( ! pwarn(mdoc, line, i, WARGVPARM))
1.14 kristaps 749: return(ARGV_ERROR);
1.10 kristaps 750: return(ARGV_WORD);
1.2 kristaps 751: }
752:
1.21 kristaps 753: while (buf[*pos] && isspace((int)buf[*pos]))
1.2 kristaps 754: (*pos)++;
755:
756: /* FIXME: whitespace if no value. */
757:
1.26 kristaps 758: if ( ! argv(mdoc, line, v, pos, buf))
1.5 kristaps 759: return(ARGV_ERROR);
1.2 kristaps 760:
1.5 kristaps 761: return(ARGV_ARG);
1.2 kristaps 762: }
763:
764:
1.1 kristaps 765: void
766: mdoc_argv_free(int sz, struct mdoc_arg *arg)
767: {
768: int i;
769:
770: for (i = 0; i < sz; i++) {
771: if (0 == arg[i].sz) {
772: assert(NULL == arg[i].value);
773: continue;
774: }
775: assert(arg[i].value);
776: free(arg[i].value);
777: }
778: }
1.2 kristaps 779: