Annotation of mandoc/argv.c, Revision 1.35
1.35 ! kristaps 1: /* $Id: argv.c,v 1.34 2009/02/28 12:16:02 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++) {
1.35 ! kristaps 254: switch (n->data.block.argv[i].arg) {
! 255: case (MDOC_Column):
! 256: fl |= ARGS_TABSEP;
! 257: fl &= ~ARGS_DELIM;
! 258: i = c;
! 259: break;
! 260: case (MDOC_Diag):
! 261: fl |= ARGS_QUOTED;
! 262: i = c;
! 263: break;
! 264: default:
! 265: break;
! 266: }
1.24 kristaps 267: }
268: }
269:
1.26 kristaps 270: return(args(mdoc, line, pos, buf, fl, v));
271: }
272:
273:
274: static int
275: args(struct mdoc *mdoc, int line,
276: int *pos, char *buf, int fl, char **v)
277: {
1.31 kristaps 278: int i;
1.26 kristaps 279: char *p, *pp;
280:
281: assert(*pos > 0);
282:
283: if (0 == buf[*pos])
284: return(ARGS_EOLN);
285:
286: if ('\"' == buf[*pos] && ! (fl & ARGS_QUOTED))
287: if ( ! pwarn(mdoc, line, *pos, WQUOTPARM))
288: return(ARGS_ERROR);
289:
290: if ('-' == buf[*pos])
291: if ( ! pwarn(mdoc, line, *pos, WARGVPARM))
292: return(ARGS_ERROR);
293:
1.24 kristaps 294: /*
295: * If the first character is a delimiter and we're to look for
296: * delimited strings, then pass down the buffer seeing if it
297: * follows the pattern of [[::delim::][ ]+]+.
298: */
299:
1.2 kristaps 300: if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos])) {
1.31 kristaps 301: for (i = *pos; buf[i]; ) {
302: if ( ! mdoc_iscdelim(buf[i]))
1.2 kristaps 303: break;
304: i++;
1.34 kristaps 305: /* There must be at least one space... */
306: if (0 == buf[i] || ! isspace((int)buf[i]))
307: break;
308: i++;
1.31 kristaps 309: while (buf[i] && isspace((int)buf[i]))
1.2 kristaps 310: i++;
311: }
312: if (0 == buf[i]) {
313: *v = &buf[*pos];
314: return(ARGS_PUNCT);
315: }
316: }
317:
1.24 kristaps 318: /* First parse non-quoted strings. */
1.1 kristaps 319:
1.17 kristaps 320: if ('\"' != buf[*pos] || ! (ARGS_QUOTED & fl)) {
1.1 kristaps 321: *v = &buf[*pos];
322:
1.24 kristaps 323: /*
324: * Thar be dragons here! If we're tab-separated, search
325: * ahead for either a tab or the `Ta' macro. If a tab
326: * is detected, it mustn't be escaped; if a `Ta' is
327: * detected, it must be space-buffered before and after.
328: * If either of these hold true, then prune out the
329: * extra spaces and call it an argument.
330: */
331:
332: if (ARGS_TABSEP & fl) {
333: /* Scan ahead to unescaped tab. */
1.12 kristaps 334:
1.24 kristaps 335: for (p = *v; ; p++) {
336: if (NULL == (p = strchr(p, '\t')))
337: break;
338: if (p == *v)
339: break;
340: if ('\\' != *(p - 1))
1.12 kristaps 341: break;
342: }
1.24 kristaps 343:
344: /* Scan ahead to unescaped `Ta'. */
345:
346: for (pp = *v; ; pp++) {
347: if (NULL == (pp = strstr(pp, "Ta")))
348: break;
349: if (pp > *v && ' ' != *(pp - 1))
350: continue;
351: if (' ' == *(pp + 2) || 0 == *(pp + 2))
352: break;
353: }
354:
355: /* Choose delimiter tab/Ta. */
356:
357: if (p && pp)
358: p = (p < pp ? p : pp);
359: else if ( ! p && pp)
360: p = pp;
361:
362: /* Strip delimiter's preceding whitespace. */
363:
364: if (p && p > *v) {
365: pp = p - 1;
366: while (pp > *v && ' ' == *pp)
367: pp--;
368: if (pp == *v && ' ' == *pp)
369: *pp = 0;
370: else if (' ' == *pp)
371: *(pp + 1) = 0;
372: }
373:
374: /* ...in- and proceding whitespace. */
375:
376: if (p && ('\t' != *p)) {
377: *p++ = 0;
378: *p++ = 0;
379: } else if (p)
380: *p++ = 0;
381:
382: if (p) {
383: while (' ' == *p)
384: p++;
385: if (0 != *p)
386: *(p - 1) = 0;
1.33 kristaps 387: *pos += (int)(p - *v);
1.24 kristaps 388: }
389:
1.25 kristaps 390: if (p && 0 == *p)
391: if ( ! pwarn(mdoc, line, *pos, WCOLEMPTY))
392: return(0);
393: if (p && 0 == *p && p > *v && ' ' == *(p - 1))
394: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
395: return(0);
396:
1.26 kristaps 397: if (p)
398: return(ARGS_WORD);
399:
1.24 kristaps 400: /* Configure the eoln case, too. */
401:
1.26 kristaps 402: p = strchr(*v, 0);
403: assert(p);
404:
405: if (p > *v && ' ' == *(p - 1))
406: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
407: return(0);
1.33 kristaps 408: *pos += (int)(p - *v);
1.24 kristaps 409:
410: return(ARGS_WORD);
411: }
412:
413: /* Do non-tabsep look-ahead here. */
414:
415: if ( ! (ARGS_TABSEP & fl))
1.31 kristaps 416: while (buf[*pos]) {
417: if (isspace((int)buf[*pos]))
1.17 kristaps 418: if ('\\' != buf[*pos - 1])
419: break;
1.12 kristaps 420: (*pos)++;
1.17 kristaps 421: }
1.1 kristaps 422:
423: if (0 == buf[*pos])
1.2 kristaps 424: return(ARGS_WORD);
1.1 kristaps 425:
426: buf[(*pos)++] = 0;
1.12 kristaps 427:
1.1 kristaps 428: if (0 == buf[*pos])
1.2 kristaps 429: return(ARGS_WORD);
1.1 kristaps 430:
1.12 kristaps 431: if ( ! (ARGS_TABSEP & fl))
1.21 kristaps 432: while (buf[*pos] && isspace((int)buf[*pos]))
1.12 kristaps 433: (*pos)++;
1.1 kristaps 434:
435: if (buf[*pos])
1.2 kristaps 436: return(ARGS_WORD);
1.1 kristaps 437:
1.25 kristaps 438: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
1.2 kristaps 439: return(ARGS_ERROR);
1.1 kristaps 440:
1.2 kristaps 441: return(ARGS_WORD);
442: }
443:
444: /*
445: * If we're a quoted string (and quoted strings are allowed),
446: * then parse ahead to the next quote. If none's found, it's an
1.4 kristaps 447: * error. After, parse to the next word.
1.2 kristaps 448: */
1.1 kristaps 449:
450: *v = &buf[++(*pos)];
451:
452: while (buf[*pos] && '\"' != buf[*pos])
453: (*pos)++;
454:
455: if (0 == buf[*pos]) {
1.25 kristaps 456: (void)perr(mdoc, line, *pos, EQUOTTERM);
1.2 kristaps 457: return(ARGS_ERROR);
1.1 kristaps 458: }
459:
460: buf[(*pos)++] = 0;
461: if (0 == buf[*pos])
1.19 kristaps 462: return(ARGS_QWORD);
1.1 kristaps 463:
1.21 kristaps 464: while (buf[*pos] && isspace((int)buf[*pos]))
1.1 kristaps 465: (*pos)++;
466:
467: if (buf[*pos])
1.19 kristaps 468: return(ARGS_QWORD);
1.1 kristaps 469:
1.25 kristaps 470: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
1.2 kristaps 471: return(ARGS_ERROR);
472:
1.19 kristaps 473: return(ARGS_QWORD);
1.1 kristaps 474: }
475:
476:
1.2 kristaps 477: static int
1.30 kristaps 478: argv_a2arg(int tok, const char *argv)
1.1 kristaps 479: {
480:
481: switch (tok) {
1.6 kristaps 482: case (MDOC_An):
483: if (xstrcmp(argv, "split"))
484: return(MDOC_Split);
485: else if (xstrcmp(argv, "nosplit"))
486: return(MDOC_Nosplit);
487: break;
488:
1.2 kristaps 489: case (MDOC_Bd):
1.1 kristaps 490: if (xstrcmp(argv, "ragged"))
491: return(MDOC_Ragged);
492: else if (xstrcmp(argv, "unfilled"))
493: return(MDOC_Unfilled);
1.13 kristaps 494: else if (xstrcmp(argv, "filled"))
495: return(MDOC_Filled);
1.1 kristaps 496: else if (xstrcmp(argv, "literal"))
497: return(MDOC_Literal);
498: else if (xstrcmp(argv, "file"))
499: return(MDOC_File);
500: else if (xstrcmp(argv, "offset"))
501: return(MDOC_Offset);
1.2 kristaps 502: break;
503:
1.8 kristaps 504: case (MDOC_Bf):
505: if (xstrcmp(argv, "emphasis"))
506: return(MDOC_Emphasis);
507: else if (xstrcmp(argv, "literal"))
508: return(MDOC_Literal);
509: else if (xstrcmp(argv, "symbolic"))
510: return(MDOC_Symbolic);
511: break;
512:
1.7 kristaps 513: case (MDOC_Bk):
514: if (xstrcmp(argv, "words"))
515: return(MDOC_Words);
516: break;
517:
1.2 kristaps 518: case (MDOC_Bl):
519: if (xstrcmp(argv, "bullet"))
1.1 kristaps 520: return(MDOC_Bullet);
521: else if (xstrcmp(argv, "dash"))
522: return(MDOC_Dash);
523: else if (xstrcmp(argv, "hyphen"))
524: return(MDOC_Hyphen);
525: else if (xstrcmp(argv, "item"))
526: return(MDOC_Item);
527: else if (xstrcmp(argv, "enum"))
528: return(MDOC_Enum);
529: else if (xstrcmp(argv, "tag"))
530: return(MDOC_Tag);
531: else if (xstrcmp(argv, "diag"))
532: return(MDOC_Diag);
533: else if (xstrcmp(argv, "hang"))
534: return(MDOC_Hang);
535: else if (xstrcmp(argv, "ohang"))
536: return(MDOC_Ohang);
537: else if (xstrcmp(argv, "inset"))
538: return(MDOC_Inset);
539: else if (xstrcmp(argv, "column"))
540: return(MDOC_Column);
541: else if (xstrcmp(argv, "width"))
542: return(MDOC_Width);
1.2 kristaps 543: else if (xstrcmp(argv, "offset"))
544: return(MDOC_Offset);
1.1 kristaps 545: else if (xstrcmp(argv, "compact"))
546: return(MDOC_Compact);
1.2 kristaps 547: break;
1.3 kristaps 548:
549: case (MDOC_Rv):
550: /* FALLTHROUGH */
551: case (MDOC_Ex):
552: if (xstrcmp(argv, "std"))
553: return(MDOC_Std);
554: break;
1.5 kristaps 555:
556: case (MDOC_St):
557: if (xstrcmp(argv, "p1003.1-88"))
558: return(MDOC_p1003_1_88);
559: else if (xstrcmp(argv, "p1003.1-90"))
560: return(MDOC_p1003_1_90);
561: else if (xstrcmp(argv, "p1003.1-96"))
562: return(MDOC_p1003_1_96);
563: else if (xstrcmp(argv, "p1003.1-2001"))
564: return(MDOC_p1003_1_2001);
565: else if (xstrcmp(argv, "p1003.1-2004"))
566: return(MDOC_p1003_1_2004);
567: else if (xstrcmp(argv, "p1003.1"))
568: return(MDOC_p1003_1);
569: else if (xstrcmp(argv, "p1003.1b"))
570: return(MDOC_p1003_1b);
571: else if (xstrcmp(argv, "p1003.1b-93"))
572: return(MDOC_p1003_1b_93);
573: else if (xstrcmp(argv, "p1003.1c-95"))
574: return(MDOC_p1003_1c_95);
575: else if (xstrcmp(argv, "p1003.1g-2000"))
576: return(MDOC_p1003_1g_2000);
577: else if (xstrcmp(argv, "p1003.2-92"))
578: return(MDOC_p1003_2_92);
579: else if (xstrcmp(argv, "p1003.2-95"))
580: return(MDOC_p1387_2_95);
581: else if (xstrcmp(argv, "p1003.2"))
582: return(MDOC_p1003_2);
583: else if (xstrcmp(argv, "p1387.2-95"))
584: return(MDOC_p1387_2);
585: else if (xstrcmp(argv, "isoC-90"))
586: return(MDOC_isoC_90);
587: else if (xstrcmp(argv, "isoC-amd1"))
588: return(MDOC_isoC_amd1);
589: else if (xstrcmp(argv, "isoC-tcor1"))
590: return(MDOC_isoC_tcor1);
591: else if (xstrcmp(argv, "isoC-tcor2"))
592: return(MDOC_isoC_tcor2);
593: else if (xstrcmp(argv, "isoC-99"))
594: return(MDOC_isoC_99);
595: else if (xstrcmp(argv, "ansiC"))
596: return(MDOC_ansiC);
597: else if (xstrcmp(argv, "ansiC-89"))
598: return(MDOC_ansiC_89);
599: else if (xstrcmp(argv, "ansiC-99"))
600: return(MDOC_ansiC_99);
601: else if (xstrcmp(argv, "ieee754"))
602: return(MDOC_ieee754);
603: else if (xstrcmp(argv, "iso8802-3"))
604: return(MDOC_iso8802_3);
605: else if (xstrcmp(argv, "xpg3"))
606: return(MDOC_xpg3);
607: else if (xstrcmp(argv, "xpg4"))
608: return(MDOC_xpg4);
609: else if (xstrcmp(argv, "xpg4.2"))
610: return(MDOC_xpg4_2);
611: else if (xstrcmp(argv, "xpg4.3"))
612: return(MDOC_xpg4_3);
613: else if (xstrcmp(argv, "xbd5"))
614: return(MDOC_xbd5);
615: else if (xstrcmp(argv, "xcu5"))
616: return(MDOC_xcu5);
617: else if (xstrcmp(argv, "xsh5"))
618: return(MDOC_xsh5);
619: else if (xstrcmp(argv, "xns5"))
620: return(MDOC_xns5);
621: else if (xstrcmp(argv, "xns5.2d2.0"))
622: return(MDOC_xns5_2d2_0);
623: else if (xstrcmp(argv, "xcurses4.2"))
624: return(MDOC_xcurses4_2);
625: else if (xstrcmp(argv, "susv2"))
626: return(MDOC_susv2);
627: else if (xstrcmp(argv, "susv3"))
628: return(MDOC_susv3);
629: else if (xstrcmp(argv, "svid4"))
630: return(MDOC_svid4);
631: break;
1.1 kristaps 632:
633: default:
1.8 kristaps 634: break;
1.1 kristaps 635: }
636:
637: return(MDOC_ARG_MAX);
638: }
639:
640:
1.2 kristaps 641: static int
1.26 kristaps 642: argv_multi(struct mdoc *mdoc, int line,
1.12 kristaps 643: struct mdoc_arg *v, int *pos, char *buf)
644: {
645: int c, ppos;
646: char *p;
647:
648: v->sz = 0;
649: v->value = xcalloc(MDOC_LINEARG_MAX, sizeof(char *));
650:
651: ppos = *pos;
652:
653: for (v->sz = 0; v->sz < MDOC_LINEARG_MAX; v->sz++) {
654: if ('-' == buf[*pos])
655: break;
1.26 kristaps 656: c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p);
1.12 kristaps 657: if (ARGS_ERROR == c) {
658: free(v->value);
659: return(0);
660: } else if (ARGS_EOLN == c)
661: break;
1.33 kristaps 662: v->value[(int)v->sz] = p;
1.12 kristaps 663: }
664:
665: if (0 < v->sz && v->sz < MDOC_LINEARG_MAX)
666: return(1);
667:
668: free(v->value);
1.25 kristaps 669: if (0 == v->sz)
670: return(perr(mdoc, line, ppos, EARGVAL));
671:
672: return(perr(mdoc, line, ppos, EARGMANY));
1.12 kristaps 673: }
674:
675:
676: static int
1.26 kristaps 677: argv_single(struct mdoc *mdoc, int line,
1.1 kristaps 678: struct mdoc_arg *v, int *pos, char *buf)
679: {
1.12 kristaps 680: int c, ppos;
1.1 kristaps 681: char *p;
682:
683: ppos = *pos;
684:
1.26 kristaps 685: c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p);
1.12 kristaps 686: if (ARGS_ERROR == c)
687: return(0);
688: if (ARGS_EOLN == c)
1.25 kristaps 689: return(perr(mdoc, line, ppos, EARGVAL));
1.12 kristaps 690:
691: v->sz = 1;
692: v->value = xcalloc(1, sizeof(char *));
693: v->value[0] = p;
694: return(1);
695: }
696:
697:
698: static int
1.26 kristaps 699: argv(struct mdoc *mdoc, int line,
1.12 kristaps 700: struct mdoc_arg *v, int *pos, char *buf)
701: {
702:
703: v->sz = 0;
704: v->value = NULL;
705:
1.2 kristaps 706: switch (v->arg) {
1.3 kristaps 707: case(MDOC_Std):
708: /* FALLTHROUGH */
1.1 kristaps 709: case(MDOC_Width):
710: /* FALLTHROUGH */
711: case(MDOC_Offset):
1.26 kristaps 712: return(argv_single(mdoc, line, v, pos, buf));
1.1 kristaps 713: case(MDOC_Column):
1.26 kristaps 714: return(argv_multi(mdoc, line, v, pos, buf));
1.1 kristaps 715: default:
1.6 kristaps 716: break;
1.1 kristaps 717: }
718:
719: return(1);
720: }
721:
722:
1.2 kristaps 723: int
1.9 kristaps 724: mdoc_argv(struct mdoc *mdoc, int line, int tok,
1.2 kristaps 725: struct mdoc_arg *v, int *pos, char *buf)
726: {
1.29 kristaps 727: int i;
1.26 kristaps 728: char *p;
1.2 kristaps 729:
730: (void)memset(v, 0, sizeof(struct mdoc_arg));
731:
732: if (0 == buf[*pos])
1.5 kristaps 733: return(ARGV_EOLN);
1.2 kristaps 734:
1.21 kristaps 735: assert( ! isspace((int)buf[*pos]));
1.2 kristaps 736:
1.5 kristaps 737: if ('-' != buf[*pos])
738: return(ARGV_WORD);
1.2 kristaps 739:
740: i = *pos;
1.26 kristaps 741: p = &buf[++(*pos)];
1.2 kristaps 742:
1.11 kristaps 743: v->line = line;
744: v->pos = *pos;
745:
1.17 kristaps 746: assert(*pos > 0);
1.26 kristaps 747:
748: /* LINTED */
1.17 kristaps 749: while (buf[*pos]) {
1.21 kristaps 750: if (isspace((int)buf[*pos]))
1.17 kristaps 751: if ('\\' != buf[*pos - 1])
752: break;
1.2 kristaps 753: (*pos)++;
1.17 kristaps 754: }
1.2 kristaps 755:
756: if (buf[*pos])
757: buf[(*pos)++] = 0;
758:
1.30 kristaps 759: if (MDOC_ARG_MAX == (v->arg = argv_a2arg(tok, p))) {
1.25 kristaps 760: if ( ! pwarn(mdoc, line, i, WARGVPARM))
1.14 kristaps 761: return(ARGV_ERROR);
1.10 kristaps 762: return(ARGV_WORD);
1.2 kristaps 763: }
764:
1.21 kristaps 765: while (buf[*pos] && isspace((int)buf[*pos]))
1.2 kristaps 766: (*pos)++;
767:
768: /* FIXME: whitespace if no value. */
769:
1.26 kristaps 770: if ( ! argv(mdoc, line, v, pos, buf))
1.5 kristaps 771: return(ARGV_ERROR);
1.2 kristaps 772:
1.5 kristaps 773: return(ARGV_ARG);
1.2 kristaps 774: }
775:
776:
1.1 kristaps 777: void
778: mdoc_argv_free(int sz, struct mdoc_arg *arg)
779: {
780: int i;
781:
782: for (i = 0; i < sz; i++) {
783: if (0 == arg[i].sz) {
784: assert(NULL == arg[i].value);
785: continue;
786: }
787: assert(arg[i].value);
788: free(arg[i].value);
789: }
790: }
1.2 kristaps 791:
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