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1.11 ! kristaps 1: /* $Id: argv.c,v 1.10 2009/01/09 15:07:04 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:
28:
1.2 kristaps 29: static int lookup(int, const char *);
1.9 kristaps 30: static int parse(struct mdoc *, int, int,
1.2 kristaps 31: struct mdoc_arg *, int *, char *);
32: static int postparse(struct mdoc *, int,
33: const struct mdoc_arg *, int);
1.1 kristaps 34:
35:
1.2 kristaps 36: int
1.9 kristaps 37: mdoc_args(struct mdoc *mdoc, int line, int *pos, char *buf, int fl, char **v)
1.1 kristaps 38: {
1.2 kristaps 39: int i;
1.1 kristaps 40:
41: if (0 == buf[*pos])
1.2 kristaps 42: return(ARGS_EOLN);
43:
44: if ('\"' == buf[*pos] && ! (fl & ARGS_QUOTED))
1.9 kristaps 45: if ( ! mdoc_pwarn(mdoc, line, *pos, WARN_SYNTAX_QUOTED))
1.2 kristaps 46: return(ARGS_ERROR);
47:
48: if ('-' == buf[*pos])
1.9 kristaps 49: if ( ! mdoc_pwarn(mdoc, line, *pos, WARN_SYNTAX_ARGLIKE))
1.2 kristaps 50: return(ARGS_ERROR);
51:
52: if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos])) {
53: for (i = *pos; buf[i]; ) {
54: if ( ! mdoc_iscdelim(buf[i]))
55: break;
56: i++;
57: if (0 == buf[i] || ! isspace(buf[i]))
58: break;
59: i++;
60: while (buf[i] && isspace(buf[i]))
61: i++;
62: }
63: if (0 == buf[i]) {
64: *v = &buf[*pos];
65: return(ARGS_PUNCT);
66: }
67: }
68:
69: /*
70: * Parse routine for non-quoted string.
71: */
1.1 kristaps 72:
73: if ('\"' != buf[*pos]) {
74: *v = &buf[*pos];
75:
76: while (buf[*pos] && ! isspace(buf[*pos]))
77: (*pos)++;
78:
79: if (0 == buf[*pos])
1.2 kristaps 80: return(ARGS_WORD);
1.1 kristaps 81:
82: buf[(*pos)++] = 0;
83: if (0 == buf[*pos])
1.2 kristaps 84: return(ARGS_WORD);
1.1 kristaps 85:
86: while (buf[*pos] && isspace(buf[*pos]))
87: (*pos)++;
88:
89: if (buf[*pos])
1.2 kristaps 90: return(ARGS_WORD);
1.1 kristaps 91:
1.9 kristaps 92: if ( ! mdoc_pwarn(mdoc, line, *pos, WARN_SYNTAX_WS_EOLN))
1.2 kristaps 93: return(ARGS_ERROR);
1.1 kristaps 94:
1.2 kristaps 95: return(ARGS_WORD);
96: }
97:
98: /*
99: * If we're a quoted string (and quoted strings are allowed),
100: * then parse ahead to the next quote. If none's found, it's an
1.4 kristaps 101: * error. After, parse to the next word.
1.2 kristaps 102: */
1.1 kristaps 103:
104: *v = &buf[++(*pos)];
105:
106: while (buf[*pos] && '\"' != buf[*pos])
107: (*pos)++;
108:
109: if (0 == buf[*pos]) {
1.9 kristaps 110: (void)mdoc_perr(mdoc, line, *pos, ERR_SYNTAX_UNQUOTE);
1.2 kristaps 111: return(ARGS_ERROR);
1.1 kristaps 112: }
113:
114: buf[(*pos)++] = 0;
115: if (0 == buf[*pos])
1.2 kristaps 116: return(ARGS_WORD);
1.1 kristaps 117:
118: while (buf[*pos] && isspace(buf[*pos]))
119: (*pos)++;
120:
121: if (buf[*pos])
1.2 kristaps 122: return(ARGS_WORD);
1.1 kristaps 123:
1.9 kristaps 124: if ( ! mdoc_pwarn(mdoc, line, *pos, WARN_SYNTAX_WS_EOLN))
1.2 kristaps 125: return(ARGS_ERROR);
126:
127: return(ARGS_WORD);
1.1 kristaps 128: }
129:
130:
1.2 kristaps 131: static int
132: lookup(int tok, const char *argv)
1.1 kristaps 133: {
134:
135: switch (tok) {
1.6 kristaps 136: case (MDOC_An):
137: if (xstrcmp(argv, "split"))
138: return(MDOC_Split);
139: else if (xstrcmp(argv, "nosplit"))
140: return(MDOC_Nosplit);
141: break;
142:
1.2 kristaps 143: case (MDOC_Bd):
1.1 kristaps 144: if (xstrcmp(argv, "ragged"))
145: return(MDOC_Ragged);
146: else if (xstrcmp(argv, "unfilled"))
147: return(MDOC_Unfilled);
148: else if (xstrcmp(argv, "literal"))
149: return(MDOC_Literal);
150: else if (xstrcmp(argv, "file"))
151: return(MDOC_File);
152: else if (xstrcmp(argv, "offset"))
153: return(MDOC_Offset);
1.2 kristaps 154: break;
155:
1.8 kristaps 156: case (MDOC_Bf):
157: if (xstrcmp(argv, "emphasis"))
158: return(MDOC_Emphasis);
159: else if (xstrcmp(argv, "literal"))
160: return(MDOC_Literal);
161: else if (xstrcmp(argv, "symbolic"))
162: return(MDOC_Symbolic);
163: break;
164:
1.7 kristaps 165: case (MDOC_Bk):
166: if (xstrcmp(argv, "words"))
167: return(MDOC_Words);
168: break;
169:
1.2 kristaps 170: case (MDOC_Bl):
171: if (xstrcmp(argv, "bullet"))
1.1 kristaps 172: return(MDOC_Bullet);
173: else if (xstrcmp(argv, "dash"))
174: return(MDOC_Dash);
175: else if (xstrcmp(argv, "hyphen"))
176: return(MDOC_Hyphen);
177: else if (xstrcmp(argv, "item"))
178: return(MDOC_Item);
179: else if (xstrcmp(argv, "enum"))
180: return(MDOC_Enum);
181: else if (xstrcmp(argv, "tag"))
182: return(MDOC_Tag);
183: else if (xstrcmp(argv, "diag"))
184: return(MDOC_Diag);
185: else if (xstrcmp(argv, "hang"))
186: return(MDOC_Hang);
187: else if (xstrcmp(argv, "ohang"))
188: return(MDOC_Ohang);
189: else if (xstrcmp(argv, "inset"))
190: return(MDOC_Inset);
191: else if (xstrcmp(argv, "column"))
192: return(MDOC_Column);
193: else if (xstrcmp(argv, "width"))
194: return(MDOC_Width);
1.2 kristaps 195: else if (xstrcmp(argv, "offset"))
196: return(MDOC_Offset);
1.1 kristaps 197: else if (xstrcmp(argv, "compact"))
198: return(MDOC_Compact);
1.2 kristaps 199: break;
1.3 kristaps 200:
201: case (MDOC_Rv):
202: /* FALLTHROUGH */
203: case (MDOC_Ex):
204: if (xstrcmp(argv, "std"))
205: return(MDOC_Std);
206: break;
1.5 kristaps 207:
208: case (MDOC_St):
209: if (xstrcmp(argv, "p1003.1-88"))
210: return(MDOC_p1003_1_88);
211: else if (xstrcmp(argv, "p1003.1-90"))
212: return(MDOC_p1003_1_90);
213: else if (xstrcmp(argv, "p1003.1-96"))
214: return(MDOC_p1003_1_96);
215: else if (xstrcmp(argv, "p1003.1-2001"))
216: return(MDOC_p1003_1_2001);
217: else if (xstrcmp(argv, "p1003.1-2004"))
218: return(MDOC_p1003_1_2004);
219: else if (xstrcmp(argv, "p1003.1"))
220: return(MDOC_p1003_1);
221: else if (xstrcmp(argv, "p1003.1b"))
222: return(MDOC_p1003_1b);
223: else if (xstrcmp(argv, "p1003.1b-93"))
224: return(MDOC_p1003_1b_93);
225: else if (xstrcmp(argv, "p1003.1c-95"))
226: return(MDOC_p1003_1c_95);
227: else if (xstrcmp(argv, "p1003.1g-2000"))
228: return(MDOC_p1003_1g_2000);
229: else if (xstrcmp(argv, "p1003.2-92"))
230: return(MDOC_p1003_2_92);
231: else if (xstrcmp(argv, "p1003.2-95"))
232: return(MDOC_p1387_2_95);
233: else if (xstrcmp(argv, "p1003.2"))
234: return(MDOC_p1003_2);
235: else if (xstrcmp(argv, "p1387.2-95"))
236: return(MDOC_p1387_2);
237: else if (xstrcmp(argv, "isoC-90"))
238: return(MDOC_isoC_90);
239: else if (xstrcmp(argv, "isoC-amd1"))
240: return(MDOC_isoC_amd1);
241: else if (xstrcmp(argv, "isoC-tcor1"))
242: return(MDOC_isoC_tcor1);
243: else if (xstrcmp(argv, "isoC-tcor2"))
244: return(MDOC_isoC_tcor2);
245: else if (xstrcmp(argv, "isoC-99"))
246: return(MDOC_isoC_99);
247: else if (xstrcmp(argv, "ansiC"))
248: return(MDOC_ansiC);
249: else if (xstrcmp(argv, "ansiC-89"))
250: return(MDOC_ansiC_89);
251: else if (xstrcmp(argv, "ansiC-99"))
252: return(MDOC_ansiC_99);
253: else if (xstrcmp(argv, "ieee754"))
254: return(MDOC_ieee754);
255: else if (xstrcmp(argv, "iso8802-3"))
256: return(MDOC_iso8802_3);
257: else if (xstrcmp(argv, "xpg3"))
258: return(MDOC_xpg3);
259: else if (xstrcmp(argv, "xpg4"))
260: return(MDOC_xpg4);
261: else if (xstrcmp(argv, "xpg4.2"))
262: return(MDOC_xpg4_2);
263: else if (xstrcmp(argv, "xpg4.3"))
264: return(MDOC_xpg4_3);
265: else if (xstrcmp(argv, "xbd5"))
266: return(MDOC_xbd5);
267: else if (xstrcmp(argv, "xcu5"))
268: return(MDOC_xcu5);
269: else if (xstrcmp(argv, "xsh5"))
270: return(MDOC_xsh5);
271: else if (xstrcmp(argv, "xns5"))
272: return(MDOC_xns5);
273: else if (xstrcmp(argv, "xns5.2d2.0"))
274: return(MDOC_xns5_2d2_0);
275: else if (xstrcmp(argv, "xcurses4.2"))
276: return(MDOC_xcurses4_2);
277: else if (xstrcmp(argv, "susv2"))
278: return(MDOC_susv2);
279: else if (xstrcmp(argv, "susv3"))
280: return(MDOC_susv3);
281: else if (xstrcmp(argv, "svid4"))
282: return(MDOC_svid4);
283: break;
1.1 kristaps 284:
285: default:
1.8 kristaps 286: break;
1.1 kristaps 287: }
288:
289: return(MDOC_ARG_MAX);
290: }
291:
292:
1.2 kristaps 293: static int
1.9 kristaps 294: postparse(struct mdoc *mdoc, int line, const struct mdoc_arg *v, int pos)
1.2 kristaps 295: {
296:
297: switch (v->arg) {
298: case (MDOC_Offset):
299: assert(v->value);
300: assert(v->value[0]);
301: if (xstrcmp(v->value[0], "left"))
302: break;
303: if (xstrcmp(v->value[0], "right"))
304: break;
305: if (xstrcmp(v->value[0], "center"))
306: break;
307: if (xstrcmp(v->value[0], "indent"))
308: break;
309: if (xstrcmp(v->value[0], "indent-two"))
310: break;
1.9 kristaps 311: return(mdoc_perr(mdoc, line, pos, ERR_SYNTAX_ARGBAD));
1.2 kristaps 312: default:
313: break;
314: }
315:
316: return(1);
317: }
318:
319:
320: static int
1.9 kristaps 321: parse(struct mdoc *mdoc, int line, int tok,
1.1 kristaps 322: struct mdoc_arg *v, int *pos, char *buf)
323: {
324: char *p;
325: int c, ppos, i;
326:
327: ppos = *pos;
328:
1.2 kristaps 329: switch (v->arg) {
1.3 kristaps 330: case(MDOC_Std):
331: /* FALLTHROUGH */
1.1 kristaps 332: case(MDOC_Width):
333: /* FALLTHROUGH */
334: case(MDOC_Offset):
335: /*
336: * This has a single value for an argument.
337: */
1.9 kristaps 338: c = mdoc_args(mdoc, line, pos, buf, ARGS_QUOTED, &p);
1.2 kristaps 339: if (ARGS_ERROR == c)
1.1 kristaps 340: return(0);
1.9 kristaps 341: else if (ARGS_EOLN != c) {
342: v->sz = 1;
343: v->value = xcalloc(1, sizeof(char *));
344: v->value[0] = p;
345: break;
346: }
347: return(mdoc_perr(mdoc, line, ppos, ERR_SYNTAX_ARGVAL));
1.1 kristaps 348:
349: case(MDOC_Column):
350: /*
351: * This has several value for a single argument. We
352: * pre-allocate a pointer array and don't let it exceed
353: * this size.
354: */
355: v->sz = 0;
356: v->value = xcalloc(MDOC_LINEARG_MAX, sizeof(char *));
357: for (i = 0; i < MDOC_LINEARG_MAX; i++) {
1.9 kristaps 358: c = mdoc_args(mdoc, line, pos, buf, ARGS_QUOTED, &p);
1.2 kristaps 359: if (ARGS_ERROR == c) {
1.1 kristaps 360: free(v->value);
361: return(0);
1.2 kristaps 362: } else if (ARGS_EOLN == c)
1.1 kristaps 363: break;
364: v->value[i] = p;
365: }
366: if (0 == i) {
367: free(v->value);
1.9 kristaps 368: return(mdoc_perr(mdoc, line, ppos,
369: ERR_SYNTAX_ARGVAL));
1.1 kristaps 370: } else if (MDOC_LINEARG_MAX == i)
1.9 kristaps 371: return(mdoc_perr(mdoc, line, ppos,
372: ERR_SYNTAX_ARGMANY));
1.1 kristaps 373:
374: v->sz = i;
375: break;
1.6 kristaps 376:
1.1 kristaps 377: default:
1.6 kristaps 378: v->sz = 0;
379: v->value = NULL;
380: break;
1.1 kristaps 381: }
382:
383: return(1);
384: }
385:
386:
1.2 kristaps 387: int
1.9 kristaps 388: mdoc_argv(struct mdoc *mdoc, int line, int tok,
1.2 kristaps 389: struct mdoc_arg *v, int *pos, char *buf)
390: {
391: int i, ppos;
392: char *argv;
393:
394: (void)memset(v, 0, sizeof(struct mdoc_arg));
395:
396: if (0 == buf[*pos])
1.5 kristaps 397: return(ARGV_EOLN);
1.2 kristaps 398:
399: assert( ! isspace(buf[*pos]));
400:
1.5 kristaps 401: if ('-' != buf[*pos])
402: return(ARGV_WORD);
1.2 kristaps 403:
404: i = *pos;
405: argv = &buf[++(*pos)];
406:
1.11 ! kristaps 407: v->line = line;
! 408: v->pos = *pos;
! 409:
1.2 kristaps 410: while (buf[*pos] && ! isspace(buf[*pos]))
411: (*pos)++;
412:
413: if (buf[*pos])
414: buf[(*pos)++] = 0;
415:
416: if (MDOC_ARG_MAX == (v->arg = lookup(tok, argv))) {
1.10 kristaps 417: (void)mdoc_pwarn(mdoc, line, i, WARN_SYNTAX_ARGLIKE);
418: return(ARGV_WORD);
1.2 kristaps 419: }
420:
421: while (buf[*pos] && isspace(buf[*pos]))
422: (*pos)++;
423:
424: /* FIXME: whitespace if no value. */
425:
426: ppos = *pos;
1.9 kristaps 427: if ( ! parse(mdoc, line, tok, v, pos, buf))
1.5 kristaps 428: return(ARGV_ERROR);
1.9 kristaps 429: if ( ! postparse(mdoc, line, v, ppos))
1.5 kristaps 430: return(ARGV_ERROR);
1.2 kristaps 431:
1.5 kristaps 432: return(ARGV_ARG);
1.2 kristaps 433: }
434:
435:
1.1 kristaps 436: void
437: mdoc_argv_free(int sz, struct mdoc_arg *arg)
438: {
439: int i;
440:
441: for (i = 0; i < sz; i++) {
442: if (0 == arg[i].sz) {
443: assert(NULL == arg[i].value);
444: continue;
445: }
446: assert(arg[i].value);
447: free(arg[i].value);
448: }
449: }
1.2 kristaps 450: