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1.29 ! kristaps 1: /* $Id: argv.c,v 1.28 2009/02/23 15:19:47 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:
1.2 kristaps 38: static int lookup(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 */
77: ARGS_DELIM, /* It */
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: {
270: int i, c;
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])) {
1.24 kristaps 293: for (i = *pos; (c = buf[i]); ) {
294: if ( ! mdoc_iscdelim(c))
1.2 kristaps 295: break;
296: i++;
1.24 kristaps 297: if (0 == buf[i] || ! isspace(c))
1.2 kristaps 298: break;
299: i++;
1.24 kristaps 300: while (buf[i] && isspace(c))
1.2 kristaps 301: i++;
302: }
303: if (0 == buf[i]) {
304: *v = &buf[*pos];
305: return(ARGS_PUNCT);
306: }
307: }
308:
1.24 kristaps 309: /* First parse non-quoted strings. */
1.1 kristaps 310:
1.17 kristaps 311: if ('\"' != buf[*pos] || ! (ARGS_QUOTED & fl)) {
1.1 kristaps 312: *v = &buf[*pos];
313:
1.24 kristaps 314: /*
315: * Thar be dragons here! If we're tab-separated, search
316: * ahead for either a tab or the `Ta' macro. If a tab
317: * is detected, it mustn't be escaped; if a `Ta' is
318: * detected, it must be space-buffered before and after.
319: * If either of these hold true, then prune out the
320: * extra spaces and call it an argument.
321: */
322:
323: if (ARGS_TABSEP & fl) {
324: /* Scan ahead to unescaped tab. */
1.12 kristaps 325:
1.24 kristaps 326: for (p = *v; ; p++) {
327: if (NULL == (p = strchr(p, '\t')))
328: break;
329: if (p == *v)
330: break;
331: if ('\\' != *(p - 1))
1.12 kristaps 332: break;
333: }
1.24 kristaps 334:
335: /* Scan ahead to unescaped `Ta'. */
336:
337: for (pp = *v; ; pp++) {
338: if (NULL == (pp = strstr(pp, "Ta")))
339: break;
340: if (pp > *v && ' ' != *(pp - 1))
341: continue;
342: if (' ' == *(pp + 2) || 0 == *(pp + 2))
343: break;
344: }
345:
346: /* Choose delimiter tab/Ta. */
347:
348: if (p && pp)
349: p = (p < pp ? p : pp);
350: else if ( ! p && pp)
351: p = pp;
352:
353: /* Strip delimiter's preceding whitespace. */
354:
355: if (p && p > *v) {
356: pp = p - 1;
357: while (pp > *v && ' ' == *pp)
358: pp--;
359: if (pp == *v && ' ' == *pp)
360: *pp = 0;
361: else if (' ' == *pp)
362: *(pp + 1) = 0;
363: }
364:
365: /* ...in- and proceding whitespace. */
366:
367: if (p && ('\t' != *p)) {
368: *p++ = 0;
369: *p++ = 0;
370: } else if (p)
371: *p++ = 0;
372:
373: if (p) {
374: while (' ' == *p)
375: p++;
376: if (0 != *p)
377: *(p - 1) = 0;
378: *pos += p - *v;
379: }
380:
1.25 kristaps 381: if (p && 0 == *p)
382: if ( ! pwarn(mdoc, line, *pos, WCOLEMPTY))
383: return(0);
384: if (p && 0 == *p && p > *v && ' ' == *(p - 1))
385: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
386: return(0);
387:
1.26 kristaps 388: if (p)
389: return(ARGS_WORD);
390:
1.24 kristaps 391: /* Configure the eoln case, too. */
392:
1.26 kristaps 393: p = strchr(*v, 0);
394: assert(p);
395:
396: if (p > *v && ' ' == *(p - 1))
397: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
398: return(0);
399: *pos += p - *v;
1.24 kristaps 400:
401: return(ARGS_WORD);
402: }
403:
404: /* Do non-tabsep look-ahead here. */
405:
406: if ( ! (ARGS_TABSEP & fl))
407: while ((c = buf[*pos])) {
408: if (isspace(c))
1.17 kristaps 409: if ('\\' != buf[*pos - 1])
410: break;
1.12 kristaps 411: (*pos)++;
1.17 kristaps 412: }
1.1 kristaps 413:
414: if (0 == buf[*pos])
1.2 kristaps 415: return(ARGS_WORD);
1.1 kristaps 416:
417: buf[(*pos)++] = 0;
1.12 kristaps 418:
1.1 kristaps 419: if (0 == buf[*pos])
1.2 kristaps 420: return(ARGS_WORD);
1.1 kristaps 421:
1.12 kristaps 422: if ( ! (ARGS_TABSEP & fl))
1.21 kristaps 423: while (buf[*pos] && isspace((int)buf[*pos]))
1.12 kristaps 424: (*pos)++;
1.1 kristaps 425:
426: if (buf[*pos])
1.2 kristaps 427: return(ARGS_WORD);
1.1 kristaps 428:
1.25 kristaps 429: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
1.2 kristaps 430: return(ARGS_ERROR);
1.1 kristaps 431:
1.2 kristaps 432: return(ARGS_WORD);
433: }
434:
435: /*
436: * If we're a quoted string (and quoted strings are allowed),
437: * then parse ahead to the next quote. If none's found, it's an
1.4 kristaps 438: * error. After, parse to the next word.
1.2 kristaps 439: */
1.1 kristaps 440:
441: *v = &buf[++(*pos)];
442:
443: while (buf[*pos] && '\"' != buf[*pos])
444: (*pos)++;
445:
446: if (0 == buf[*pos]) {
1.25 kristaps 447: (void)perr(mdoc, line, *pos, EQUOTTERM);
1.2 kristaps 448: return(ARGS_ERROR);
1.1 kristaps 449: }
450:
451: buf[(*pos)++] = 0;
452: if (0 == buf[*pos])
1.19 kristaps 453: return(ARGS_QWORD);
1.1 kristaps 454:
1.21 kristaps 455: while (buf[*pos] && isspace((int)buf[*pos]))
1.1 kristaps 456: (*pos)++;
457:
458: if (buf[*pos])
1.19 kristaps 459: return(ARGS_QWORD);
1.1 kristaps 460:
1.25 kristaps 461: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
1.2 kristaps 462: return(ARGS_ERROR);
463:
1.19 kristaps 464: return(ARGS_QWORD);
1.1 kristaps 465: }
466:
467:
1.2 kristaps 468: static int
469: lookup(int tok, const char *argv)
1.1 kristaps 470: {
471:
472: switch (tok) {
1.6 kristaps 473: case (MDOC_An):
474: if (xstrcmp(argv, "split"))
475: return(MDOC_Split);
476: else if (xstrcmp(argv, "nosplit"))
477: return(MDOC_Nosplit);
478: break;
479:
1.2 kristaps 480: case (MDOC_Bd):
1.1 kristaps 481: if (xstrcmp(argv, "ragged"))
482: return(MDOC_Ragged);
483: else if (xstrcmp(argv, "unfilled"))
484: return(MDOC_Unfilled);
1.13 kristaps 485: else if (xstrcmp(argv, "filled"))
486: return(MDOC_Filled);
1.1 kristaps 487: else if (xstrcmp(argv, "literal"))
488: return(MDOC_Literal);
489: else if (xstrcmp(argv, "file"))
490: return(MDOC_File);
491: else if (xstrcmp(argv, "offset"))
492: return(MDOC_Offset);
1.2 kristaps 493: break;
494:
1.8 kristaps 495: case (MDOC_Bf):
496: if (xstrcmp(argv, "emphasis"))
497: return(MDOC_Emphasis);
498: else if (xstrcmp(argv, "literal"))
499: return(MDOC_Literal);
500: else if (xstrcmp(argv, "symbolic"))
501: return(MDOC_Symbolic);
502: break;
503:
1.7 kristaps 504: case (MDOC_Bk):
505: if (xstrcmp(argv, "words"))
506: return(MDOC_Words);
507: break;
508:
1.2 kristaps 509: case (MDOC_Bl):
510: if (xstrcmp(argv, "bullet"))
1.1 kristaps 511: return(MDOC_Bullet);
512: else if (xstrcmp(argv, "dash"))
513: return(MDOC_Dash);
514: else if (xstrcmp(argv, "hyphen"))
515: return(MDOC_Hyphen);
516: else if (xstrcmp(argv, "item"))
517: return(MDOC_Item);
518: else if (xstrcmp(argv, "enum"))
519: return(MDOC_Enum);
520: else if (xstrcmp(argv, "tag"))
521: return(MDOC_Tag);
522: else if (xstrcmp(argv, "diag"))
523: return(MDOC_Diag);
524: else if (xstrcmp(argv, "hang"))
525: return(MDOC_Hang);
526: else if (xstrcmp(argv, "ohang"))
527: return(MDOC_Ohang);
528: else if (xstrcmp(argv, "inset"))
529: return(MDOC_Inset);
530: else if (xstrcmp(argv, "column"))
531: return(MDOC_Column);
532: else if (xstrcmp(argv, "width"))
533: return(MDOC_Width);
1.2 kristaps 534: else if (xstrcmp(argv, "offset"))
535: return(MDOC_Offset);
1.1 kristaps 536: else if (xstrcmp(argv, "compact"))
537: return(MDOC_Compact);
1.2 kristaps 538: break;
1.3 kristaps 539:
540: case (MDOC_Rv):
541: /* FALLTHROUGH */
542: case (MDOC_Ex):
543: if (xstrcmp(argv, "std"))
544: return(MDOC_Std);
545: break;
1.5 kristaps 546:
547: case (MDOC_St):
548: if (xstrcmp(argv, "p1003.1-88"))
549: return(MDOC_p1003_1_88);
550: else if (xstrcmp(argv, "p1003.1-90"))
551: return(MDOC_p1003_1_90);
552: else if (xstrcmp(argv, "p1003.1-96"))
553: return(MDOC_p1003_1_96);
554: else if (xstrcmp(argv, "p1003.1-2001"))
555: return(MDOC_p1003_1_2001);
556: else if (xstrcmp(argv, "p1003.1-2004"))
557: return(MDOC_p1003_1_2004);
558: else if (xstrcmp(argv, "p1003.1"))
559: return(MDOC_p1003_1);
560: else if (xstrcmp(argv, "p1003.1b"))
561: return(MDOC_p1003_1b);
562: else if (xstrcmp(argv, "p1003.1b-93"))
563: return(MDOC_p1003_1b_93);
564: else if (xstrcmp(argv, "p1003.1c-95"))
565: return(MDOC_p1003_1c_95);
566: else if (xstrcmp(argv, "p1003.1g-2000"))
567: return(MDOC_p1003_1g_2000);
568: else if (xstrcmp(argv, "p1003.2-92"))
569: return(MDOC_p1003_2_92);
570: else if (xstrcmp(argv, "p1003.2-95"))
571: return(MDOC_p1387_2_95);
572: else if (xstrcmp(argv, "p1003.2"))
573: return(MDOC_p1003_2);
574: else if (xstrcmp(argv, "p1387.2-95"))
575: return(MDOC_p1387_2);
576: else if (xstrcmp(argv, "isoC-90"))
577: return(MDOC_isoC_90);
578: else if (xstrcmp(argv, "isoC-amd1"))
579: return(MDOC_isoC_amd1);
580: else if (xstrcmp(argv, "isoC-tcor1"))
581: return(MDOC_isoC_tcor1);
582: else if (xstrcmp(argv, "isoC-tcor2"))
583: return(MDOC_isoC_tcor2);
584: else if (xstrcmp(argv, "isoC-99"))
585: return(MDOC_isoC_99);
586: else if (xstrcmp(argv, "ansiC"))
587: return(MDOC_ansiC);
588: else if (xstrcmp(argv, "ansiC-89"))
589: return(MDOC_ansiC_89);
590: else if (xstrcmp(argv, "ansiC-99"))
591: return(MDOC_ansiC_99);
592: else if (xstrcmp(argv, "ieee754"))
593: return(MDOC_ieee754);
594: else if (xstrcmp(argv, "iso8802-3"))
595: return(MDOC_iso8802_3);
596: else if (xstrcmp(argv, "xpg3"))
597: return(MDOC_xpg3);
598: else if (xstrcmp(argv, "xpg4"))
599: return(MDOC_xpg4);
600: else if (xstrcmp(argv, "xpg4.2"))
601: return(MDOC_xpg4_2);
602: else if (xstrcmp(argv, "xpg4.3"))
603: return(MDOC_xpg4_3);
604: else if (xstrcmp(argv, "xbd5"))
605: return(MDOC_xbd5);
606: else if (xstrcmp(argv, "xcu5"))
607: return(MDOC_xcu5);
608: else if (xstrcmp(argv, "xsh5"))
609: return(MDOC_xsh5);
610: else if (xstrcmp(argv, "xns5"))
611: return(MDOC_xns5);
612: else if (xstrcmp(argv, "xns5.2d2.0"))
613: return(MDOC_xns5_2d2_0);
614: else if (xstrcmp(argv, "xcurses4.2"))
615: return(MDOC_xcurses4_2);
616: else if (xstrcmp(argv, "susv2"))
617: return(MDOC_susv2);
618: else if (xstrcmp(argv, "susv3"))
619: return(MDOC_susv3);
620: else if (xstrcmp(argv, "svid4"))
621: return(MDOC_svid4);
622: break;
1.1 kristaps 623:
624: default:
1.8 kristaps 625: break;
1.1 kristaps 626: }
627:
628: return(MDOC_ARG_MAX);
629: }
630:
631:
1.2 kristaps 632: static int
1.26 kristaps 633: argv_multi(struct mdoc *mdoc, int line,
1.12 kristaps 634: struct mdoc_arg *v, int *pos, char *buf)
635: {
636: int c, ppos;
637: char *p;
638:
639: v->sz = 0;
640: v->value = xcalloc(MDOC_LINEARG_MAX, sizeof(char *));
641:
642: ppos = *pos;
643:
644: for (v->sz = 0; v->sz < MDOC_LINEARG_MAX; v->sz++) {
645: if ('-' == buf[*pos])
646: break;
1.26 kristaps 647: c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p);
1.12 kristaps 648: if (ARGS_ERROR == c) {
649: free(v->value);
650: return(0);
651: } else if (ARGS_EOLN == c)
652: break;
653: v->value[v->sz] = p;
654: }
655:
656: if (0 < v->sz && v->sz < MDOC_LINEARG_MAX)
657: return(1);
658:
659: free(v->value);
1.25 kristaps 660: if (0 == v->sz)
661: return(perr(mdoc, line, ppos, EARGVAL));
662:
663: return(perr(mdoc, line, ppos, EARGMANY));
1.12 kristaps 664: }
665:
666:
667: static int
1.26 kristaps 668: argv_single(struct mdoc *mdoc, int line,
1.1 kristaps 669: struct mdoc_arg *v, int *pos, char *buf)
670: {
1.12 kristaps 671: int c, ppos;
1.1 kristaps 672: char *p;
673:
674: ppos = *pos;
675:
1.26 kristaps 676: c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p);
1.12 kristaps 677: if (ARGS_ERROR == c)
678: return(0);
679: if (ARGS_EOLN == c)
1.25 kristaps 680: return(perr(mdoc, line, ppos, EARGVAL));
1.12 kristaps 681:
682: v->sz = 1;
683: v->value = xcalloc(1, sizeof(char *));
684: v->value[0] = p;
685: return(1);
686: }
687:
688:
689: static int
1.26 kristaps 690: argv(struct mdoc *mdoc, int line,
1.12 kristaps 691: struct mdoc_arg *v, int *pos, char *buf)
692: {
693:
694: v->sz = 0;
695: v->value = NULL;
696:
1.2 kristaps 697: switch (v->arg) {
1.3 kristaps 698: case(MDOC_Std):
699: /* FALLTHROUGH */
1.1 kristaps 700: case(MDOC_Width):
701: /* FALLTHROUGH */
702: case(MDOC_Offset):
1.26 kristaps 703: return(argv_single(mdoc, line, v, pos, buf));
1.1 kristaps 704: case(MDOC_Column):
1.26 kristaps 705: return(argv_multi(mdoc, line, v, pos, buf));
1.1 kristaps 706: default:
1.6 kristaps 707: break;
1.1 kristaps 708: }
709:
710: return(1);
711: }
712:
713:
1.2 kristaps 714: int
1.9 kristaps 715: mdoc_argv(struct mdoc *mdoc, int line, int tok,
1.2 kristaps 716: struct mdoc_arg *v, int *pos, char *buf)
717: {
1.29 ! kristaps 718: int i;
1.26 kristaps 719: char *p;
1.2 kristaps 720:
721: (void)memset(v, 0, sizeof(struct mdoc_arg));
722:
723: if (0 == buf[*pos])
1.5 kristaps 724: return(ARGV_EOLN);
1.2 kristaps 725:
1.21 kristaps 726: assert( ! isspace((int)buf[*pos]));
1.2 kristaps 727:
1.5 kristaps 728: if ('-' != buf[*pos])
729: return(ARGV_WORD);
1.2 kristaps 730:
731: i = *pos;
1.26 kristaps 732: p = &buf[++(*pos)];
1.2 kristaps 733:
1.11 kristaps 734: v->line = line;
735: v->pos = *pos;
736:
1.17 kristaps 737: assert(*pos > 0);
1.26 kristaps 738:
739: /* LINTED */
1.17 kristaps 740: while (buf[*pos]) {
1.21 kristaps 741: if (isspace((int)buf[*pos]))
1.17 kristaps 742: if ('\\' != buf[*pos - 1])
743: break;
1.2 kristaps 744: (*pos)++;
1.17 kristaps 745: }
1.2 kristaps 746:
747: if (buf[*pos])
748: buf[(*pos)++] = 0;
749:
1.26 kristaps 750: if (MDOC_ARG_MAX == (v->arg = lookup(tok, p))) {
1.25 kristaps 751: if ( ! pwarn(mdoc, line, i, WARGVPARM))
1.14 kristaps 752: return(ARGV_ERROR);
1.10 kristaps 753: return(ARGV_WORD);
1.2 kristaps 754: }
755:
1.21 kristaps 756: while (buf[*pos] && isspace((int)buf[*pos]))
1.2 kristaps 757: (*pos)++;
758:
759: /* FIXME: whitespace if no value. */
760:
1.26 kristaps 761: if ( ! argv(mdoc, line, v, pos, buf))
1.5 kristaps 762: return(ARGV_ERROR);
1.2 kristaps 763:
1.5 kristaps 764: return(ARGV_ARG);
1.2 kristaps 765: }
766:
767:
1.1 kristaps 768: void
769: mdoc_argv_free(int sz, struct mdoc_arg *arg)
770: {
771: int i;
772:
773: for (i = 0; i < sz; i++) {
774: if (0 == arg[i].sz) {
775: assert(NULL == arg[i].value);
776: continue;
777: }
778: assert(arg[i].value);
779: free(arg[i].value);
780: }
781: }
1.2 kristaps 782: