Annotation of mandoc/argv.c, Revision 1.37
1.37 ! kristaps 1: /* $Id: argv.c,v 1.36 2009/03/05 12:08:53 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:
1.36 kristaps 38: #define ARGV_NONE (1 << 0)
39: #define ARGV_SINGLE (1 << 1)
40: #define ARGV_MULTI (1 << 2)
41: #define ARGV_OPT_SINGLE (1 << 3)
42:
1.30 kristaps 43: static int argv_a2arg(int, const char *);
1.26 kristaps 44: static int args(struct mdoc *, int, int *,
45: char *, int, char **);
1.37 ! kristaps 46: static int argv(struct mdoc *, int, int,
1.2 kristaps 47: struct mdoc_arg *, int *, char *);
1.26 kristaps 48: static int argv_single(struct mdoc *, int,
1.12 kristaps 49: struct mdoc_arg *, int *, char *);
1.36 kristaps 50: static int argv_opt_single(struct mdoc *, int,
51: struct mdoc_arg *, int *, char *);
1.26 kristaps 52: static int argv_multi(struct mdoc *, int,
1.12 kristaps 53: struct mdoc_arg *, int *, char *);
1.24 kristaps 54: static int pwarn(struct mdoc *, int, int, int);
1.25 kristaps 55: static int perr(struct mdoc *, int, int, int);
1.1 kristaps 56:
1.26 kristaps 57: /* Warning messages. */
58:
1.24 kristaps 59: #define WQUOTPARM (0)
60: #define WARGVPARM (1)
1.25 kristaps 61: #define WCOLEMPTY (2)
62: #define WTAILWS (3)
63:
1.26 kristaps 64: /* Error messages. */
65:
1.25 kristaps 66: #define EQUOTTERM (0)
1.28 kristaps 67: #define EARGVAL (1)
68: #define EARGMANY (2)
1.22 kristaps 69:
1.36 kristaps 70: /* Per-argument flags. */
71:
72: static int mdoc_argvflags[MDOC_ARG_MAX] = {
73: ARGV_NONE, /* MDOC_Split */
74: ARGV_NONE, /* MDOC_Nosplit */
75: ARGV_NONE, /* MDOC_Ragged */
76: ARGV_NONE, /* MDOC_Unfilled */
77: ARGV_NONE, /* MDOC_Literal */
78: ARGV_NONE, /* MDOC_File */
79: ARGV_SINGLE, /* MDOC_Offset */
80: ARGV_NONE, /* MDOC_Bullet */
81: ARGV_NONE, /* MDOC_Dash */
82: ARGV_NONE, /* MDOC_Hyphen */
83: ARGV_NONE, /* MDOC_Item */
84: ARGV_NONE, /* MDOC_Enum */
85: ARGV_NONE, /* MDOC_Tag */
86: ARGV_NONE, /* MDOC_Diag */
87: ARGV_NONE, /* MDOC_Hang */
88: ARGV_NONE, /* MDOC_Ohang */
89: ARGV_NONE, /* MDOC_Inset */
90: ARGV_MULTI, /* MDOC_Column */
91: ARGV_SINGLE, /* MDOC_Width */
92: ARGV_NONE, /* MDOC_Compact */
1.37 ! kristaps 93: ARGV_SINGLE, /* MDOC_Std */
1.36 kristaps 94: ARGV_NONE, /* MDOC_p1003_1_88 */
95: ARGV_NONE, /* MDOC_p1003_1_90 */
96: ARGV_NONE, /* MDOC_p1003_1_96 */
97: ARGV_NONE, /* MDOC_p1003_1_2001 */
98: ARGV_NONE, /* MDOC_p1003_1_2004 */
99: ARGV_NONE, /* MDOC_p1003_1 */
100: ARGV_NONE, /* MDOC_p1003_1b */
101: ARGV_NONE, /* MDOC_p1003_1b_93 */
102: ARGV_NONE, /* MDOC_p1003_1c_95 */
103: ARGV_NONE, /* MDOC_p1003_1g_2000 */
104: ARGV_NONE, /* MDOC_p1003_2_92 */
105: ARGV_NONE, /* MDOC_p1387_2_95 */
106: ARGV_NONE, /* MDOC_p1003_2 */
107: ARGV_NONE, /* MDOC_p1387_2 */
108: ARGV_NONE, /* MDOC_isoC_90 */
109: ARGV_NONE, /* MDOC_isoC_amd1 */
110: ARGV_NONE, /* MDOC_isoC_tcor1 */
111: ARGV_NONE, /* MDOC_isoC_tcor2 */
112: ARGV_NONE, /* MDOC_isoC_99 */
113: ARGV_NONE, /* MDOC_ansiC */
114: ARGV_NONE, /* MDOC_ansiC_89 */
115: ARGV_NONE, /* MDOC_ansiC_99 */
116: ARGV_NONE, /* MDOC_ieee754 */
117: ARGV_NONE, /* MDOC_iso8802_3 */
118: ARGV_NONE, /* MDOC_xpg3 */
119: ARGV_NONE, /* MDOC_xpg4 */
120: ARGV_NONE, /* MDOC_xpg4_2 */
121: ARGV_NONE, /* MDOC_xpg4_3 */
122: ARGV_NONE, /* MDOC_xbd5 */
123: ARGV_NONE, /* MDOC_xcu5 */
124: ARGV_NONE, /* MDOC_xsh5 */
125: ARGV_NONE, /* MDOC_xns5 */
126: ARGV_NONE, /* MDOC_xns5_2d2_0 */
127: ARGV_NONE, /* MDOC_xcurses4_2 */
128: ARGV_NONE, /* MDOC_susv2 */
129: ARGV_NONE, /* MDOC_susv3 */
130: ARGV_NONE, /* MDOC_svid4 */
131: ARGV_NONE, /* MDOC_Filled */
132: ARGV_NONE, /* MDOC_Words */
133: ARGV_NONE, /* MDOC_Emphasis */
134: ARGV_NONE /* MDOC_Symbolic */
135: };
136:
1.22 kristaps 137: static int mdoc_argflags[MDOC_MAX] = {
138: 0, /* \" */
139: 0, /* Dd */
140: 0, /* Dt */
141: 0, /* Os */
142: 0, /* Sh */
143: 0, /* Ss */
144: ARGS_DELIM, /* Pp */
145: ARGS_DELIM, /* D1 */
146: ARGS_DELIM, /* Dl */
147: 0, /* Bd */
148: 0, /* Ed */
149: 0, /* Bl */
150: 0, /* El */
1.32 kristaps 151: 0, /* It */
1.22 kristaps 152: ARGS_DELIM, /* Ad */
153: ARGS_DELIM, /* An */
154: ARGS_DELIM, /* Ar */
155: ARGS_QUOTED, /* Cd */
156: ARGS_DELIM, /* Cm */
157: ARGS_DELIM, /* Dv */
158: ARGS_DELIM, /* Er */
159: ARGS_DELIM, /* Ev */
160: 0, /* Ex */
161: ARGS_DELIM | ARGS_QUOTED, /* Fa */
162: 0, /* Fd */
163: ARGS_DELIM, /* Fl */
164: ARGS_DELIM | ARGS_QUOTED, /* Fn */
165: ARGS_DELIM | ARGS_QUOTED, /* Ft */
166: ARGS_DELIM, /* Ic */
167: 0, /* In */
168: ARGS_DELIM, /* Li */
169: 0, /* Nd */
170: ARGS_DELIM, /* Nm */
171: ARGS_DELIM, /* Op */
172: 0, /* Ot */
173: ARGS_DELIM, /* Pa */
174: 0, /* Rv */
175: ARGS_DELIM, /* St */
176: ARGS_DELIM, /* Va */
177: ARGS_DELIM, /* Vt */
178: ARGS_DELIM, /* Xr */
179: ARGS_QUOTED, /* %A */
180: ARGS_QUOTED, /* %B */
181: ARGS_QUOTED, /* %D */
182: ARGS_QUOTED, /* %I */
183: ARGS_QUOTED, /* %J */
184: ARGS_QUOTED, /* %N */
185: ARGS_QUOTED, /* %O */
186: ARGS_QUOTED, /* %P */
187: ARGS_QUOTED, /* %R */
188: ARGS_QUOTED, /* %T */
189: ARGS_QUOTED, /* %V */
190: ARGS_DELIM, /* Ac */
191: 0, /* Ao */
192: ARGS_DELIM, /* Aq */
193: ARGS_DELIM, /* At */
194: ARGS_DELIM, /* Bc */
195: 0, /* Bf */
196: 0, /* Bo */
197: ARGS_DELIM, /* Bq */
198: ARGS_DELIM, /* Bsx */
199: ARGS_DELIM, /* Bx */
200: 0, /* Db */
201: ARGS_DELIM, /* Dc */
202: 0, /* Do */
203: ARGS_DELIM, /* Dq */
204: ARGS_DELIM, /* Ec */
205: 0, /* Ef */
206: ARGS_DELIM, /* Em */
207: 0, /* Eo */
208: ARGS_DELIM, /* Fx */
209: ARGS_DELIM, /* Ms */
210: ARGS_DELIM, /* No */
211: ARGS_DELIM, /* Ns */
212: ARGS_DELIM, /* Nx */
213: ARGS_DELIM, /* Ox */
214: ARGS_DELIM, /* Pc */
215: ARGS_DELIM, /* Pf */
216: 0, /* Po */
217: ARGS_DELIM, /* Pq */
218: ARGS_DELIM, /* Qc */
219: ARGS_DELIM, /* Ql */
220: 0, /* Qo */
221: ARGS_DELIM, /* Qq */
222: 0, /* Re */
223: 0, /* Rs */
224: ARGS_DELIM, /* Sc */
225: 0, /* So */
226: ARGS_DELIM, /* Sq */
227: 0, /* Sm */
228: ARGS_DELIM, /* Sx */
229: ARGS_DELIM, /* Sy */
230: ARGS_DELIM, /* Tn */
231: ARGS_DELIM, /* Ux */
232: ARGS_DELIM, /* Xc */
233: 0, /* Xo */
234: 0, /* Fo */
235: 0, /* Fc */
236: 0, /* Oo */
237: ARGS_DELIM, /* Oc */
238: 0, /* Bk */
239: 0, /* Ek */
240: 0, /* Bt */
241: 0, /* Hf */
242: 0, /* Fr */
243: 0, /* Ud */
244: };
245:
1.1 kristaps 246:
1.24 kristaps 247: static int
1.25 kristaps 248: perr(struct mdoc *mdoc, int line, int pos, int code)
249: {
250: int c;
251:
252: switch (code) {
253: case (EQUOTTERM):
254: c = mdoc_perr(mdoc, line, pos,
255: "unterminated quoted parameter");
256: break;
257: case (EARGVAL):
258: c = mdoc_perr(mdoc, line, pos,
259: "argument requires a value");
260: break;
261: case (EARGMANY):
262: c = mdoc_perr(mdoc, line, pos,
263: "too many values for argument");
264: break;
265: default:
266: abort();
267: /* NOTREACHED */
268: }
269: return(c);
270: }
271:
272:
273: static int
1.24 kristaps 274: pwarn(struct mdoc *mdoc, int line, int pos, int code)
275: {
276: int c;
277:
278: switch (code) {
279: case (WQUOTPARM):
280: c = mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX,
281: "unexpected quoted parameter");
282: break;
283: case (WARGVPARM):
284: c = mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX,
285: "argument-like parameter");
286: break;
1.25 kristaps 287: case (WCOLEMPTY):
288: c = mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX,
289: "last list column is empty");
290: break;
291: case (WTAILWS):
292: c = mdoc_pwarn(mdoc, line, pos, WARN_COMPAT,
293: "trailing whitespace");
294: break;
1.24 kristaps 295: default:
296: abort();
297: /* NOTREACHED */
298: }
299: return(c);
300: }
301:
302:
1.2 kristaps 303: int
1.22 kristaps 304: mdoc_args(struct mdoc *mdoc, int line,
305: int *pos, char *buf, int tok, char **v)
1.1 kristaps 306: {
1.26 kristaps 307: int fl, c, i;
1.22 kristaps 308: struct mdoc_node *n;
309:
1.24 kristaps 310: fl = (0 == tok) ? 0 : mdoc_argflags[tok];
311:
312: /*
1.36 kristaps 313: * Override per-macro argument flags with context-specific ones.
314: * As of now, this is only valid for `It' depending on its list
315: * context.
1.24 kristaps 316: */
317:
1.36 kristaps 318: switch (tok) {
319: case (MDOC_It):
1.24 kristaps 320: for (n = mdoc->last; n; n = n->parent)
1.36 kristaps 321: if (MDOC_BLOCK == n->type && MDOC_Bl == n->tok)
322: break;
323:
1.24 kristaps 324: assert(n);
325: c = (int)n->data.block.argc;
326: assert(c > 0);
1.26 kristaps 327:
1.36 kristaps 328: /*
329: * Using `Bl -column' adds ARGS_TABSEP to the arguments
330: * and invalidates ARGS_DELIM. Using `Bl -diag' allows
331: * for quoted arguments.
332: */
333:
1.26 kristaps 334: /* LINTED */
1.24 kristaps 335: for (i = 0; i < c; i++) {
1.35 kristaps 336: switch (n->data.block.argv[i].arg) {
337: case (MDOC_Column):
338: fl |= ARGS_TABSEP;
339: fl &= ~ARGS_DELIM;
340: i = c;
341: break;
342: case (MDOC_Diag):
343: fl |= ARGS_QUOTED;
344: i = c;
345: break;
346: default:
347: break;
348: }
1.24 kristaps 349: }
1.36 kristaps 350: default:
351: break;
1.24 kristaps 352: }
353:
1.36 kristaps 354: /* Continue parsing the arguments themselves... */
355:
1.26 kristaps 356: return(args(mdoc, line, pos, buf, fl, v));
357: }
358:
359:
360: static int
361: args(struct mdoc *mdoc, int line,
362: int *pos, char *buf, int fl, char **v)
363: {
1.31 kristaps 364: int i;
1.26 kristaps 365: char *p, *pp;
366:
367: assert(*pos > 0);
368:
369: if (0 == buf[*pos])
370: return(ARGS_EOLN);
371:
372: if ('\"' == buf[*pos] && ! (fl & ARGS_QUOTED))
373: if ( ! pwarn(mdoc, line, *pos, WQUOTPARM))
374: return(ARGS_ERROR);
375:
376: if ('-' == buf[*pos])
377: if ( ! pwarn(mdoc, line, *pos, WARGVPARM))
378: return(ARGS_ERROR);
379:
1.24 kristaps 380: /*
381: * If the first character is a delimiter and we're to look for
382: * delimited strings, then pass down the buffer seeing if it
383: * follows the pattern of [[::delim::][ ]+]+.
384: */
385:
1.2 kristaps 386: if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos])) {
1.31 kristaps 387: for (i = *pos; buf[i]; ) {
388: if ( ! mdoc_iscdelim(buf[i]))
1.2 kristaps 389: break;
390: i++;
1.34 kristaps 391: /* There must be at least one space... */
1.37 ! kristaps 392: if (0 == buf[i] || ! isspace((u_char)buf[i]))
1.34 kristaps 393: break;
394: i++;
1.37 ! kristaps 395: while (buf[i] && isspace((u_char)buf[i]))
1.2 kristaps 396: i++;
397: }
398: if (0 == buf[i]) {
399: *v = &buf[*pos];
400: return(ARGS_PUNCT);
401: }
402: }
403:
1.24 kristaps 404: /* First parse non-quoted strings. */
1.1 kristaps 405:
1.17 kristaps 406: if ('\"' != buf[*pos] || ! (ARGS_QUOTED & fl)) {
1.1 kristaps 407: *v = &buf[*pos];
408:
1.24 kristaps 409: /*
410: * Thar be dragons here! If we're tab-separated, search
411: * ahead for either a tab or the `Ta' macro. If a tab
412: * is detected, it mustn't be escaped; if a `Ta' is
413: * detected, it must be space-buffered before and after.
414: * If either of these hold true, then prune out the
415: * extra spaces and call it an argument.
416: */
417:
418: if (ARGS_TABSEP & fl) {
419: /* Scan ahead to unescaped tab. */
1.12 kristaps 420:
1.24 kristaps 421: for (p = *v; ; p++) {
422: if (NULL == (p = strchr(p, '\t')))
423: break;
424: if (p == *v)
425: break;
426: if ('\\' != *(p - 1))
1.12 kristaps 427: break;
428: }
1.24 kristaps 429:
430: /* Scan ahead to unescaped `Ta'. */
431:
432: for (pp = *v; ; pp++) {
433: if (NULL == (pp = strstr(pp, "Ta")))
434: break;
435: if (pp > *v && ' ' != *(pp - 1))
436: continue;
437: if (' ' == *(pp + 2) || 0 == *(pp + 2))
438: break;
439: }
440:
441: /* Choose delimiter tab/Ta. */
442:
443: if (p && pp)
444: p = (p < pp ? p : pp);
445: else if ( ! p && pp)
446: p = pp;
447:
448: /* Strip delimiter's preceding whitespace. */
449:
450: if (p && p > *v) {
451: pp = p - 1;
452: while (pp > *v && ' ' == *pp)
453: pp--;
454: if (pp == *v && ' ' == *pp)
455: *pp = 0;
456: else if (' ' == *pp)
457: *(pp + 1) = 0;
458: }
459:
460: /* ...in- and proceding whitespace. */
461:
462: if (p && ('\t' != *p)) {
463: *p++ = 0;
464: *p++ = 0;
465: } else if (p)
466: *p++ = 0;
467:
468: if (p) {
469: while (' ' == *p)
470: p++;
471: if (0 != *p)
472: *(p - 1) = 0;
1.33 kristaps 473: *pos += (int)(p - *v);
1.24 kristaps 474: }
475:
1.25 kristaps 476: if (p && 0 == *p)
477: if ( ! pwarn(mdoc, line, *pos, WCOLEMPTY))
478: return(0);
479: if (p && 0 == *p && p > *v && ' ' == *(p - 1))
480: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
481: return(0);
482:
1.26 kristaps 483: if (p)
484: return(ARGS_WORD);
485:
1.24 kristaps 486: /* Configure the eoln case, too. */
487:
1.26 kristaps 488: p = strchr(*v, 0);
489: assert(p);
490:
491: if (p > *v && ' ' == *(p - 1))
492: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
493: return(0);
1.33 kristaps 494: *pos += (int)(p - *v);
1.24 kristaps 495:
496: return(ARGS_WORD);
497: }
498:
499: /* Do non-tabsep look-ahead here. */
500:
501: if ( ! (ARGS_TABSEP & fl))
1.31 kristaps 502: while (buf[*pos]) {
1.37 ! kristaps 503: if (isspace((u_char)buf[*pos]))
1.17 kristaps 504: if ('\\' != buf[*pos - 1])
505: break;
1.12 kristaps 506: (*pos)++;
1.17 kristaps 507: }
1.1 kristaps 508:
509: if (0 == buf[*pos])
1.2 kristaps 510: return(ARGS_WORD);
1.1 kristaps 511:
512: buf[(*pos)++] = 0;
1.12 kristaps 513:
1.1 kristaps 514: if (0 == buf[*pos])
1.2 kristaps 515: return(ARGS_WORD);
1.1 kristaps 516:
1.12 kristaps 517: if ( ! (ARGS_TABSEP & fl))
1.37 ! kristaps 518: while (buf[*pos] && isspace((u_char)buf[*pos]))
1.12 kristaps 519: (*pos)++;
1.1 kristaps 520:
521: if (buf[*pos])
1.2 kristaps 522: return(ARGS_WORD);
1.1 kristaps 523:
1.25 kristaps 524: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
1.2 kristaps 525: return(ARGS_ERROR);
1.1 kristaps 526:
1.2 kristaps 527: return(ARGS_WORD);
528: }
529:
530: /*
531: * If we're a quoted string (and quoted strings are allowed),
532: * then parse ahead to the next quote. If none's found, it's an
1.4 kristaps 533: * error. After, parse to the next word.
1.2 kristaps 534: */
1.1 kristaps 535:
536: *v = &buf[++(*pos)];
537:
538: while (buf[*pos] && '\"' != buf[*pos])
539: (*pos)++;
540:
541: if (0 == buf[*pos]) {
1.25 kristaps 542: (void)perr(mdoc, line, *pos, EQUOTTERM);
1.2 kristaps 543: return(ARGS_ERROR);
1.1 kristaps 544: }
545:
546: buf[(*pos)++] = 0;
547: if (0 == buf[*pos])
1.19 kristaps 548: return(ARGS_QWORD);
1.1 kristaps 549:
1.37 ! kristaps 550: while (buf[*pos] && isspace((u_char)buf[*pos]))
1.1 kristaps 551: (*pos)++;
552:
553: if (buf[*pos])
1.19 kristaps 554: return(ARGS_QWORD);
1.1 kristaps 555:
1.25 kristaps 556: if ( ! pwarn(mdoc, line, *pos, WTAILWS))
1.2 kristaps 557: return(ARGS_ERROR);
558:
1.19 kristaps 559: return(ARGS_QWORD);
1.1 kristaps 560: }
561:
562:
1.2 kristaps 563: static int
1.30 kristaps 564: argv_a2arg(int tok, const char *argv)
1.1 kristaps 565: {
566:
1.36 kristaps 567: /*
568: * Parse an argument identifier from its text. XXX - this
569: * should really be table-driven to clarify the code.
570: *
571: * If you add an argument to the list, make sure that you
572: * register it here with its one or more macros!
573: */
574:
1.1 kristaps 575: switch (tok) {
1.6 kristaps 576: case (MDOC_An):
577: if (xstrcmp(argv, "split"))
578: return(MDOC_Split);
579: else if (xstrcmp(argv, "nosplit"))
580: return(MDOC_Nosplit);
581: break;
582:
1.2 kristaps 583: case (MDOC_Bd):
1.1 kristaps 584: if (xstrcmp(argv, "ragged"))
585: return(MDOC_Ragged);
586: else if (xstrcmp(argv, "unfilled"))
587: return(MDOC_Unfilled);
1.13 kristaps 588: else if (xstrcmp(argv, "filled"))
589: return(MDOC_Filled);
1.1 kristaps 590: else if (xstrcmp(argv, "literal"))
591: return(MDOC_Literal);
592: else if (xstrcmp(argv, "file"))
593: return(MDOC_File);
594: else if (xstrcmp(argv, "offset"))
595: return(MDOC_Offset);
1.2 kristaps 596: break;
597:
1.8 kristaps 598: case (MDOC_Bf):
599: if (xstrcmp(argv, "emphasis"))
600: return(MDOC_Emphasis);
601: else if (xstrcmp(argv, "literal"))
602: return(MDOC_Literal);
603: else if (xstrcmp(argv, "symbolic"))
604: return(MDOC_Symbolic);
605: break;
606:
1.7 kristaps 607: case (MDOC_Bk):
608: if (xstrcmp(argv, "words"))
609: return(MDOC_Words);
610: break;
611:
1.2 kristaps 612: case (MDOC_Bl):
613: if (xstrcmp(argv, "bullet"))
1.1 kristaps 614: return(MDOC_Bullet);
615: else if (xstrcmp(argv, "dash"))
616: return(MDOC_Dash);
617: else if (xstrcmp(argv, "hyphen"))
618: return(MDOC_Hyphen);
619: else if (xstrcmp(argv, "item"))
620: return(MDOC_Item);
621: else if (xstrcmp(argv, "enum"))
622: return(MDOC_Enum);
623: else if (xstrcmp(argv, "tag"))
624: return(MDOC_Tag);
625: else if (xstrcmp(argv, "diag"))
626: return(MDOC_Diag);
627: else if (xstrcmp(argv, "hang"))
628: return(MDOC_Hang);
629: else if (xstrcmp(argv, "ohang"))
630: return(MDOC_Ohang);
631: else if (xstrcmp(argv, "inset"))
632: return(MDOC_Inset);
633: else if (xstrcmp(argv, "column"))
634: return(MDOC_Column);
635: else if (xstrcmp(argv, "width"))
636: return(MDOC_Width);
1.2 kristaps 637: else if (xstrcmp(argv, "offset"))
638: return(MDOC_Offset);
1.1 kristaps 639: else if (xstrcmp(argv, "compact"))
640: return(MDOC_Compact);
1.2 kristaps 641: break;
1.3 kristaps 642:
643: case (MDOC_Rv):
644: /* FALLTHROUGH */
645: case (MDOC_Ex):
646: if (xstrcmp(argv, "std"))
647: return(MDOC_Std);
648: break;
1.5 kristaps 649:
650: case (MDOC_St):
651: if (xstrcmp(argv, "p1003.1-88"))
652: return(MDOC_p1003_1_88);
653: else if (xstrcmp(argv, "p1003.1-90"))
654: return(MDOC_p1003_1_90);
655: else if (xstrcmp(argv, "p1003.1-96"))
656: return(MDOC_p1003_1_96);
657: else if (xstrcmp(argv, "p1003.1-2001"))
658: return(MDOC_p1003_1_2001);
659: else if (xstrcmp(argv, "p1003.1-2004"))
660: return(MDOC_p1003_1_2004);
661: else if (xstrcmp(argv, "p1003.1"))
662: return(MDOC_p1003_1);
663: else if (xstrcmp(argv, "p1003.1b"))
664: return(MDOC_p1003_1b);
665: else if (xstrcmp(argv, "p1003.1b-93"))
666: return(MDOC_p1003_1b_93);
667: else if (xstrcmp(argv, "p1003.1c-95"))
668: return(MDOC_p1003_1c_95);
669: else if (xstrcmp(argv, "p1003.1g-2000"))
670: return(MDOC_p1003_1g_2000);
671: else if (xstrcmp(argv, "p1003.2-92"))
672: return(MDOC_p1003_2_92);
673: else if (xstrcmp(argv, "p1003.2-95"))
674: return(MDOC_p1387_2_95);
675: else if (xstrcmp(argv, "p1003.2"))
676: return(MDOC_p1003_2);
677: else if (xstrcmp(argv, "p1387.2-95"))
678: return(MDOC_p1387_2);
679: else if (xstrcmp(argv, "isoC-90"))
680: return(MDOC_isoC_90);
681: else if (xstrcmp(argv, "isoC-amd1"))
682: return(MDOC_isoC_amd1);
683: else if (xstrcmp(argv, "isoC-tcor1"))
684: return(MDOC_isoC_tcor1);
685: else if (xstrcmp(argv, "isoC-tcor2"))
686: return(MDOC_isoC_tcor2);
687: else if (xstrcmp(argv, "isoC-99"))
688: return(MDOC_isoC_99);
689: else if (xstrcmp(argv, "ansiC"))
690: return(MDOC_ansiC);
691: else if (xstrcmp(argv, "ansiC-89"))
692: return(MDOC_ansiC_89);
693: else if (xstrcmp(argv, "ansiC-99"))
694: return(MDOC_ansiC_99);
695: else if (xstrcmp(argv, "ieee754"))
696: return(MDOC_ieee754);
697: else if (xstrcmp(argv, "iso8802-3"))
698: return(MDOC_iso8802_3);
699: else if (xstrcmp(argv, "xpg3"))
700: return(MDOC_xpg3);
701: else if (xstrcmp(argv, "xpg4"))
702: return(MDOC_xpg4);
703: else if (xstrcmp(argv, "xpg4.2"))
704: return(MDOC_xpg4_2);
705: else if (xstrcmp(argv, "xpg4.3"))
706: return(MDOC_xpg4_3);
707: else if (xstrcmp(argv, "xbd5"))
708: return(MDOC_xbd5);
709: else if (xstrcmp(argv, "xcu5"))
710: return(MDOC_xcu5);
711: else if (xstrcmp(argv, "xsh5"))
712: return(MDOC_xsh5);
713: else if (xstrcmp(argv, "xns5"))
714: return(MDOC_xns5);
715: else if (xstrcmp(argv, "xns5.2d2.0"))
716: return(MDOC_xns5_2d2_0);
717: else if (xstrcmp(argv, "xcurses4.2"))
718: return(MDOC_xcurses4_2);
719: else if (xstrcmp(argv, "susv2"))
720: return(MDOC_susv2);
721: else if (xstrcmp(argv, "susv3"))
722: return(MDOC_susv3);
723: else if (xstrcmp(argv, "svid4"))
724: return(MDOC_svid4);
725: break;
1.1 kristaps 726:
727: default:
1.8 kristaps 728: break;
1.1 kristaps 729: }
730:
731: return(MDOC_ARG_MAX);
732: }
733:
734:
1.2 kristaps 735: static int
1.26 kristaps 736: argv_multi(struct mdoc *mdoc, int line,
1.12 kristaps 737: struct mdoc_arg *v, int *pos, char *buf)
738: {
739: int c, ppos;
740: char *p;
741:
742: v->sz = 0;
743: v->value = xcalloc(MDOC_LINEARG_MAX, sizeof(char *));
744:
745: ppos = *pos;
746:
747: for (v->sz = 0; v->sz < MDOC_LINEARG_MAX; v->sz++) {
748: if ('-' == buf[*pos])
749: break;
1.26 kristaps 750: c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p);
1.12 kristaps 751: if (ARGS_ERROR == c) {
752: free(v->value);
753: return(0);
754: } else if (ARGS_EOLN == c)
755: break;
1.33 kristaps 756: v->value[(int)v->sz] = p;
1.12 kristaps 757: }
758:
759: if (0 < v->sz && v->sz < MDOC_LINEARG_MAX)
760: return(1);
761:
762: free(v->value);
1.25 kristaps 763: if (0 == v->sz)
764: return(perr(mdoc, line, ppos, EARGVAL));
765:
766: return(perr(mdoc, line, ppos, EARGMANY));
1.12 kristaps 767: }
768:
769:
770: static int
1.36 kristaps 771: argv_opt_single(struct mdoc *mdoc, int line,
772: struct mdoc_arg *v, int *pos, char *buf)
773: {
774: int c, ppos;
775: char *p;
776:
777: ppos = *pos;
778:
779: if ('-' == buf[*pos])
780: return(1);
781:
782: c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p);
783: if (ARGS_ERROR == c)
784: return(0);
785: if (ARGS_EOLN == c)
786: return(1);
787:
788: v->sz = 1;
789: v->value = xcalloc(1, sizeof(char *));
790: v->value[0] = p;
791: return(1);
792: }
793:
794:
795: /*
796: * Parse a single, mandatory value from the stream.
797: */
798: static int
1.26 kristaps 799: argv_single(struct mdoc *mdoc, int line,
1.1 kristaps 800: struct mdoc_arg *v, int *pos, char *buf)
801: {
1.12 kristaps 802: int c, ppos;
1.1 kristaps 803: char *p;
804:
805: ppos = *pos;
806:
1.26 kristaps 807: c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p);
1.12 kristaps 808: if (ARGS_ERROR == c)
809: return(0);
810: if (ARGS_EOLN == c)
1.36 kristaps 811: return(perr(mdoc, line, ppos, EARGVAL));
1.12 kristaps 812:
813: v->sz = 1;
814: v->value = xcalloc(1, sizeof(char *));
815: v->value[0] = p;
816: return(1);
817: }
818:
819:
1.36 kristaps 820: /*
821: * Determine rules for parsing arguments. Arguments can either accept
822: * no parameters, an optional single parameter, one parameter, or
823: * multiple parameters.
824: */
1.12 kristaps 825: static int
1.37 ! kristaps 826: argv(struct mdoc *mdoc, int tok, int line,
1.12 kristaps 827: struct mdoc_arg *v, int *pos, char *buf)
828: {
1.37 ! kristaps 829: int fl;
1.12 kristaps 830:
831: v->sz = 0;
832: v->value = NULL;
1.37 ! kristaps 833: fl = mdoc_argvflags[v->arg];
1.12 kristaps 834:
1.37 ! kristaps 835: /*
! 836: * Override the default per-argument value.
! 837: */
! 838:
! 839: switch (tok) {
! 840: case (MDOC_Ex):
! 841: fl = ARGV_OPT_SINGLE;
! 842: break;
! 843: default:
! 844: break;
! 845: }
! 846:
! 847: switch (fl) {
1.36 kristaps 848: case (ARGV_SINGLE):
1.26 kristaps 849: return(argv_single(mdoc, line, v, pos, buf));
1.36 kristaps 850: case (ARGV_MULTI):
1.26 kristaps 851: return(argv_multi(mdoc, line, v, pos, buf));
1.36 kristaps 852: case (ARGV_OPT_SINGLE):
853: return(argv_opt_single(mdoc, line, v, pos, buf));
1.1 kristaps 854: default:
1.36 kristaps 855: /* ARGV_NONE */
1.6 kristaps 856: break;
1.1 kristaps 857: }
858:
859: return(1);
860: }
861:
862:
1.36 kristaps 863: /*
864: * Parse an argument from line text. This comes in the form of -key
865: * [value0...], which may either have a single mandatory value, at least
866: * one mandatory value, an optional single value, or no value.
867: */
1.2 kristaps 868: int
1.9 kristaps 869: mdoc_argv(struct mdoc *mdoc, int line, int tok,
1.2 kristaps 870: struct mdoc_arg *v, int *pos, char *buf)
871: {
1.29 kristaps 872: int i;
1.26 kristaps 873: char *p;
1.2 kristaps 874:
875: (void)memset(v, 0, sizeof(struct mdoc_arg));
876:
877: if (0 == buf[*pos])
1.5 kristaps 878: return(ARGV_EOLN);
1.2 kristaps 879:
1.37 ! kristaps 880: assert( ! isspace((u_char)buf[*pos]));
1.2 kristaps 881:
1.5 kristaps 882: if ('-' != buf[*pos])
883: return(ARGV_WORD);
1.2 kristaps 884:
885: i = *pos;
1.26 kristaps 886: p = &buf[++(*pos)];
1.2 kristaps 887:
1.11 kristaps 888: v->line = line;
889: v->pos = *pos;
890:
1.17 kristaps 891: assert(*pos > 0);
1.26 kristaps 892:
893: /* LINTED */
1.17 kristaps 894: while (buf[*pos]) {
1.37 ! kristaps 895: if (isspace((u_char)buf[*pos]))
1.17 kristaps 896: if ('\\' != buf[*pos - 1])
897: break;
1.2 kristaps 898: (*pos)++;
1.17 kristaps 899: }
1.2 kristaps 900:
901: if (buf[*pos])
902: buf[(*pos)++] = 0;
903:
1.36 kristaps 904: /*
905: * We now parse out the per-macro arguments. XXX - this can be
906: * made much cleaner using per-argument tables. See argv_a2arg
907: * for details.
908: */
909:
1.30 kristaps 910: if (MDOC_ARG_MAX == (v->arg = argv_a2arg(tok, p))) {
1.25 kristaps 911: if ( ! pwarn(mdoc, line, i, WARGVPARM))
1.14 kristaps 912: return(ARGV_ERROR);
1.10 kristaps 913: return(ARGV_WORD);
1.2 kristaps 914: }
915:
1.37 ! kristaps 916: while (buf[*pos] && isspace((u_char)buf[*pos]))
1.2 kristaps 917: (*pos)++;
918:
919: /* FIXME: whitespace if no value. */
920:
1.37 ! kristaps 921: if ( ! argv(mdoc, tok, line, v, pos, buf))
1.5 kristaps 922: return(ARGV_ERROR);
1.2 kristaps 923:
1.5 kristaps 924: return(ARGV_ARG);
1.2 kristaps 925: }
926:
927:
1.1 kristaps 928: void
929: mdoc_argv_free(int sz, struct mdoc_arg *arg)
930: {
931: int i;
932:
933: for (i = 0; i < sz; i++) {
934: if (0 == arg[i].sz) {
935: assert(NULL == arg[i].value);
936: continue;
937: }
938: assert(arg[i].value);
939: free(arg[i].value);
940: }
941: }
1.2 kristaps 942:
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