Annotation of src/usr.bin/mandoc/mdoc_argv.c, Revision 1.39
1.39 ! schwarze 1: /* $Id: mdoc_argv.c,v 1.38 2011/05/29 21:22:18 schwarze Exp $ */
1.1 kristaps 2: /*
1.36 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 8: *
1.2 schwarze 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 16: */
17: #include <sys/types.h>
18:
19: #include <assert.h>
20: #include <stdlib.h>
21: #include <stdio.h>
22: #include <string.h>
23:
1.37 schwarze 24: #include "mdoc.h"
1.29 schwarze 25: #include "mandoc.h"
1.1 kristaps 26: #include "libmdoc.h"
1.19 schwarze 27: #include "libmandoc.h"
1.1 kristaps 28:
1.36 schwarze 29: #define MULTI_STEP 5 /* pre-allocate argument values */
1.38 schwarze 30: #define DELIMSZ 6 /* max possible size of a delimiter */
31:
32: enum argsflag {
33: ARGSFL_NONE = 0,
34: ARGSFL_DELIM, /* handle delimiters of [[::delim::][ ]+]+ */
35: ARGSFL_TABSEP /* handle tab/`Ta' separated phrases */
36: };
37:
38: enum argvflag {
39: ARGV_NONE, /* no args to flag (e.g., -split) */
40: ARGV_SINGLE, /* one arg to flag (e.g., -file xxx) */
41: ARGV_MULTI, /* multiple args (e.g., -column xxx yyy) */
42: ARGV_OPT_SINGLE /* optional arg (e.g., -offset [xxx]) */
43: };
1.1 kristaps 44:
1.39 ! schwarze 45: struct mdocarg {
! 46: enum argsflag flags;
! 47: const enum mdocargt *argvs;
! 48: };
! 49:
! 50: static void argn_free(struct mdoc_arg *, int);
1.24 schwarze 51: static enum margserr args(struct mdoc *, int, int *,
1.38 schwarze 52: char *, enum argsflag, char **);
53: static int args_checkpunct(const char *, int);
1.39 ! schwarze 54: static int argv_multi(struct mdoc *, int,
1.1 kristaps 55: struct mdoc_argv *, int *, char *);
56: static int argv_opt_single(struct mdoc *, int,
57: struct mdoc_argv *, int *, char *);
1.39 ! schwarze 58: static int argv_single(struct mdoc *, int,
1.1 kristaps 59: struct mdoc_argv *, int *, char *);
60:
1.36 schwarze 61: static const enum argvflag argvflags[MDOC_ARG_MAX] = {
1.1 kristaps 62: ARGV_NONE, /* MDOC_Split */
63: ARGV_NONE, /* MDOC_Nosplit */
64: ARGV_NONE, /* MDOC_Ragged */
65: ARGV_NONE, /* MDOC_Unfilled */
66: ARGV_NONE, /* MDOC_Literal */
1.17 schwarze 67: ARGV_SINGLE, /* MDOC_File */
1.15 schwarze 68: ARGV_OPT_SINGLE, /* MDOC_Offset */
1.1 kristaps 69: ARGV_NONE, /* MDOC_Bullet */
70: ARGV_NONE, /* MDOC_Dash */
71: ARGV_NONE, /* MDOC_Hyphen */
72: ARGV_NONE, /* MDOC_Item */
73: ARGV_NONE, /* MDOC_Enum */
74: ARGV_NONE, /* MDOC_Tag */
75: ARGV_NONE, /* MDOC_Diag */
76: ARGV_NONE, /* MDOC_Hang */
77: ARGV_NONE, /* MDOC_Ohang */
78: ARGV_NONE, /* MDOC_Inset */
79: ARGV_MULTI, /* MDOC_Column */
80: ARGV_SINGLE, /* MDOC_Width */
81: ARGV_NONE, /* MDOC_Compact */
1.14 schwarze 82: ARGV_NONE, /* MDOC_Std */
1.1 kristaps 83: ARGV_NONE, /* MDOC_Filled */
84: ARGV_NONE, /* MDOC_Words */
85: ARGV_NONE, /* MDOC_Emphasis */
86: ARGV_NONE, /* MDOC_Symbolic */
87: ARGV_NONE /* MDOC_Symbolic */
88: };
89:
1.37 schwarze 90: static const enum mdocargt args_Ex[] = {
91: MDOC_Std,
92: MDOC_ARG_MAX
93: };
94:
95: static const enum mdocargt args_An[] = {
96: MDOC_Split,
97: MDOC_Nosplit,
98: MDOC_ARG_MAX
99: };
100:
101: static const enum mdocargt args_Bd[] = {
102: MDOC_Ragged,
103: MDOC_Unfilled,
104: MDOC_Filled,
105: MDOC_Literal,
106: MDOC_File,
107: MDOC_Offset,
108: MDOC_Compact,
109: MDOC_Centred,
110: MDOC_ARG_MAX
111: };
112:
113: static const enum mdocargt args_Bf[] = {
114: MDOC_Emphasis,
115: MDOC_Literal,
116: MDOC_Symbolic,
117: MDOC_ARG_MAX
118: };
119:
120: static const enum mdocargt args_Bk[] = {
121: MDOC_Words,
122: MDOC_ARG_MAX
123: };
124:
125: static const enum mdocargt args_Bl[] = {
126: MDOC_Bullet,
127: MDOC_Dash,
128: MDOC_Hyphen,
129: MDOC_Item,
130: MDOC_Enum,
131: MDOC_Tag,
132: MDOC_Diag,
133: MDOC_Hang,
134: MDOC_Ohang,
135: MDOC_Inset,
136: MDOC_Column,
137: MDOC_Width,
138: MDOC_Offset,
139: MDOC_Compact,
140: MDOC_Nested,
141: MDOC_ARG_MAX
142: };
143:
1.39 ! schwarze 144: static const struct mdocarg mdocargs[MDOC_MAX] = {
! 145: { ARGSFL_NONE, NULL }, /* Ap */
! 146: { ARGSFL_NONE, NULL }, /* Dd */
! 147: { ARGSFL_NONE, NULL }, /* Dt */
! 148: { ARGSFL_NONE, NULL }, /* Os */
! 149: { ARGSFL_NONE, NULL }, /* Sh */
! 150: { ARGSFL_NONE, NULL }, /* Ss */
! 151: { ARGSFL_NONE, NULL }, /* Pp */
! 152: { ARGSFL_DELIM, NULL }, /* D1 */
! 153: { ARGSFL_DELIM, NULL }, /* Dl */
! 154: { ARGSFL_NONE, args_Bd }, /* Bd */
! 155: { ARGSFL_NONE, NULL }, /* Ed */
! 156: { ARGSFL_NONE, args_Bl }, /* Bl */
! 157: { ARGSFL_NONE, NULL }, /* El */
! 158: { ARGSFL_NONE, NULL }, /* It */
! 159: { ARGSFL_DELIM, NULL }, /* Ad */
! 160: { ARGSFL_DELIM, args_An }, /* An */
! 161: { ARGSFL_DELIM, NULL }, /* Ar */
! 162: { ARGSFL_NONE, NULL }, /* Cd */
! 163: { ARGSFL_DELIM, NULL }, /* Cm */
! 164: { ARGSFL_DELIM, NULL }, /* Dv */
! 165: { ARGSFL_DELIM, NULL }, /* Er */
! 166: { ARGSFL_DELIM, NULL }, /* Ev */
! 167: { ARGSFL_NONE, args_Ex }, /* Ex */
! 168: { ARGSFL_DELIM, NULL }, /* Fa */
! 169: { ARGSFL_NONE, NULL }, /* Fd */
! 170: { ARGSFL_DELIM, NULL }, /* Fl */
! 171: { ARGSFL_DELIM, NULL }, /* Fn */
! 172: { ARGSFL_DELIM, NULL }, /* Ft */
! 173: { ARGSFL_DELIM, NULL }, /* Ic */
! 174: { ARGSFL_NONE, NULL }, /* In */
! 175: { ARGSFL_DELIM, NULL }, /* Li */
! 176: { ARGSFL_NONE, NULL }, /* Nd */
! 177: { ARGSFL_DELIM, NULL }, /* Nm */
! 178: { ARGSFL_DELIM, NULL }, /* Op */
! 179: { ARGSFL_NONE, NULL }, /* Ot */
! 180: { ARGSFL_DELIM, NULL }, /* Pa */
! 181: { ARGSFL_NONE, args_Ex }, /* Rv */
! 182: { ARGSFL_DELIM, NULL }, /* St */
! 183: { ARGSFL_DELIM, NULL }, /* Va */
! 184: { ARGSFL_DELIM, NULL }, /* Vt */
! 185: { ARGSFL_DELIM, NULL }, /* Xr */
! 186: { ARGSFL_NONE, NULL }, /* %A */
! 187: { ARGSFL_NONE, NULL }, /* %B */
! 188: { ARGSFL_NONE, NULL }, /* %D */
! 189: { ARGSFL_NONE, NULL }, /* %I */
! 190: { ARGSFL_NONE, NULL }, /* %J */
! 191: { ARGSFL_NONE, NULL }, /* %N */
! 192: { ARGSFL_NONE, NULL }, /* %O */
! 193: { ARGSFL_NONE, NULL }, /* %P */
! 194: { ARGSFL_NONE, NULL }, /* %R */
! 195: { ARGSFL_NONE, NULL }, /* %T */
! 196: { ARGSFL_NONE, NULL }, /* %V */
! 197: { ARGSFL_DELIM, NULL }, /* Ac */
! 198: { ARGSFL_NONE, NULL }, /* Ao */
! 199: { ARGSFL_DELIM, NULL }, /* Aq */
! 200: { ARGSFL_DELIM, NULL }, /* At */
! 201: { ARGSFL_DELIM, NULL }, /* Bc */
! 202: { ARGSFL_NONE, args_Bf }, /* Bf */
! 203: { ARGSFL_NONE, NULL }, /* Bo */
! 204: { ARGSFL_DELIM, NULL }, /* Bq */
! 205: { ARGSFL_DELIM, NULL }, /* Bsx */
! 206: { ARGSFL_DELIM, NULL }, /* Bx */
! 207: { ARGSFL_NONE, NULL }, /* Db */
! 208: { ARGSFL_DELIM, NULL }, /* Dc */
! 209: { ARGSFL_NONE, NULL }, /* Do */
! 210: { ARGSFL_DELIM, NULL }, /* Dq */
! 211: { ARGSFL_DELIM, NULL }, /* Ec */
! 212: { ARGSFL_NONE, NULL }, /* Ef */
! 213: { ARGSFL_DELIM, NULL }, /* Em */
! 214: { ARGSFL_NONE, NULL }, /* Eo */
! 215: { ARGSFL_DELIM, NULL }, /* Fx */
! 216: { ARGSFL_DELIM, NULL }, /* Ms */
! 217: { ARGSFL_DELIM, NULL }, /* No */
! 218: { ARGSFL_DELIM, NULL }, /* Ns */
! 219: { ARGSFL_DELIM, NULL }, /* Nx */
! 220: { ARGSFL_DELIM, NULL }, /* Ox */
! 221: { ARGSFL_DELIM, NULL }, /* Pc */
! 222: { ARGSFL_DELIM, NULL }, /* Pf */
! 223: { ARGSFL_NONE, NULL }, /* Po */
! 224: { ARGSFL_DELIM, NULL }, /* Pq */
! 225: { ARGSFL_DELIM, NULL }, /* Qc */
! 226: { ARGSFL_DELIM, NULL }, /* Ql */
! 227: { ARGSFL_NONE, NULL }, /* Qo */
! 228: { ARGSFL_DELIM, NULL }, /* Qq */
! 229: { ARGSFL_NONE, NULL }, /* Re */
! 230: { ARGSFL_NONE, NULL }, /* Rs */
! 231: { ARGSFL_DELIM, NULL }, /* Sc */
! 232: { ARGSFL_NONE, NULL }, /* So */
! 233: { ARGSFL_DELIM, NULL }, /* Sq */
! 234: { ARGSFL_NONE, NULL }, /* Sm */
! 235: { ARGSFL_DELIM, NULL }, /* Sx */
! 236: { ARGSFL_DELIM, NULL }, /* Sy */
! 237: { ARGSFL_DELIM, NULL }, /* Tn */
! 238: { ARGSFL_DELIM, NULL }, /* Ux */
! 239: { ARGSFL_DELIM, NULL }, /* Xc */
! 240: { ARGSFL_NONE, NULL }, /* Xo */
! 241: { ARGSFL_NONE, NULL }, /* Fo */
! 242: { ARGSFL_NONE, NULL }, /* Fc */
! 243: { ARGSFL_NONE, NULL }, /* Oo */
! 244: { ARGSFL_DELIM, NULL }, /* Oc */
! 245: { ARGSFL_NONE, args_Bk }, /* Bk */
! 246: { ARGSFL_NONE, NULL }, /* Ek */
! 247: { ARGSFL_NONE, NULL }, /* Bt */
! 248: { ARGSFL_NONE, NULL }, /* Hf */
! 249: { ARGSFL_NONE, NULL }, /* Fr */
! 250: { ARGSFL_NONE, NULL }, /* Ud */
! 251: { ARGSFL_NONE, NULL }, /* Lb */
! 252: { ARGSFL_NONE, NULL }, /* Lp */
! 253: { ARGSFL_DELIM, NULL }, /* Lk */
! 254: { ARGSFL_DELIM, NULL }, /* Mt */
! 255: { ARGSFL_DELIM, NULL }, /* Brq */
! 256: { ARGSFL_NONE, NULL }, /* Bro */
! 257: { ARGSFL_DELIM, NULL }, /* Brc */
! 258: { ARGSFL_NONE, NULL }, /* %C */
! 259: { ARGSFL_NONE, NULL }, /* Es */
! 260: { ARGSFL_NONE, NULL }, /* En */
! 261: { ARGSFL_NONE, NULL }, /* Dx */
! 262: { ARGSFL_NONE, NULL }, /* %Q */
! 263: { ARGSFL_NONE, NULL }, /* br */
! 264: { ARGSFL_NONE, NULL }, /* sp */
! 265: { ARGSFL_NONE, NULL }, /* %U */
! 266: { ARGSFL_NONE, NULL }, /* Ta */
! 267: };
! 268:
! 269:
1.1 kristaps 270: /*
271: * Parse an argument from line text. This comes in the form of -key
272: * [value0...], which may either have a single mandatory value, at least
273: * one mandatory value, an optional single value, or no value.
274: */
1.24 schwarze 275: enum margverr
1.22 schwarze 276: mdoc_argv(struct mdoc *m, int line, enum mdoct tok,
1.1 kristaps 277: struct mdoc_arg **v, int *pos, char *buf)
278: {
279: char *p, sv;
280: struct mdoc_argv tmp;
281: struct mdoc_arg *arg;
1.39 ! schwarze 282: const enum mdocargt *ap;
1.1 kristaps 283:
1.30 schwarze 284: if ('\0' == buf[*pos])
1.1 kristaps 285: return(ARGV_EOLN);
1.39 ! schwarze 286: else if (NULL == (ap = mdocargs[tok].argvs))
! 287: return(ARGV_WORD);
! 288: else if ('-' != buf[*pos])
! 289: return(ARGV_WORD);
1.1 kristaps 290:
1.39 ! schwarze 291: /* Seek to the first unescaped space. */
1.1 kristaps 292:
293: p = &buf[++(*pos)];
294:
295: assert(*pos > 0);
296:
1.39 ! schwarze 297: for ( ; buf[*pos] ; (*pos)++)
! 298: if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
! 299: break;
1.1 kristaps 300:
1.39 ! schwarze 301: /*
! 302: * We want to nil-terminate the word to look it up (it's easier
! 303: * that way). But we may not have a flag, in which case we need
! 304: * to restore the line as-is. So keep around the stray byte,
! 305: * which we'll reset upon exiting (if necessary).
! 306: */
1.1 kristaps 307:
1.39 ! schwarze 308: if ('\0' != (sv = buf[*pos]))
1.30 schwarze 309: buf[(*pos)++] = '\0';
1.39 ! schwarze 310:
! 311: /*
! 312: * Now look up the word as a flag. Use temporary storage that
! 313: * we'll copy into the node's flags, if necessary.
! 314: */
1.1 kristaps 315:
1.36 schwarze 316: memset(&tmp, 0, sizeof(struct mdoc_argv));
1.39 ! schwarze 317:
1.1 kristaps 318: tmp.line = line;
319: tmp.pos = *pos;
1.39 ! schwarze 320: tmp.arg = MDOC_ARG_MAX;
1.1 kristaps 321:
1.39 ! schwarze 322: while (MDOC_ARG_MAX != (tmp.arg = *ap++))
! 323: if (0 == strcmp(p, mdoc_argnames[tmp.arg]))
! 324: break;
1.1 kristaps 325:
1.39 ! schwarze 326: if (MDOC_ARG_MAX == tmp.arg) {
! 327: /*
! 328: * The flag was not found.
! 329: * Restore saved zeroed byte and return as a word.
! 330: */
1.1 kristaps 331: if (sv)
332: buf[*pos - 1] = sv;
333: return(ARGV_WORD);
334: }
335:
1.39 ! schwarze 336: /* Read to the next word (the argument). */
! 337:
1.1 kristaps 338: while (buf[*pos] && ' ' == buf[*pos])
339: (*pos)++;
340:
1.39 ! schwarze 341: switch (argvflags[tmp.arg]) {
! 342: case (ARGV_SINGLE):
! 343: if ( ! argv_single(m, line, &tmp, pos, buf))
! 344: return(ARGV_ERROR);
! 345: break;
! 346: case (ARGV_MULTI):
! 347: if ( ! argv_multi(m, line, &tmp, pos, buf))
! 348: return(ARGV_ERROR);
! 349: break;
! 350: case (ARGV_OPT_SINGLE):
! 351: if ( ! argv_opt_single(m, line, &tmp, pos, buf))
! 352: return(ARGV_ERROR);
! 353: break;
! 354: case (ARGV_NONE):
! 355: break;
! 356: }
1.1 kristaps 357:
1.19 schwarze 358: if (NULL == (arg = *v))
359: arg = *v = mandoc_calloc(1, sizeof(struct mdoc_arg));
1.1 kristaps 360:
361: arg->argc++;
1.19 schwarze 362: arg->argv = mandoc_realloc
363: (arg->argv, arg->argc * sizeof(struct mdoc_argv));
1.1 kristaps 364:
1.36 schwarze 365: memcpy(&arg->argv[(int)arg->argc - 1],
1.1 kristaps 366: &tmp, sizeof(struct mdoc_argv));
367:
368: return(ARGV_ARG);
369: }
370:
371: void
372: mdoc_argv_free(struct mdoc_arg *p)
373: {
1.23 schwarze 374: int i;
1.1 kristaps 375:
376: if (NULL == p)
377: return;
378:
379: if (p->refcnt) {
380: --(p->refcnt);
381: if (p->refcnt)
382: return;
383: }
384: assert(p->argc);
385:
1.24 schwarze 386: for (i = (int)p->argc - 1; i >= 0; i--)
1.37 schwarze 387: argn_free(p, i);
1.23 schwarze 388:
389: free(p->argv);
390: free(p);
391: }
392:
1.37 schwarze 393: static void
394: argn_free(struct mdoc_arg *p, int iarg)
1.23 schwarze 395: {
1.33 schwarze 396: struct mdoc_argv *arg;
1.23 schwarze 397: int j;
1.1 kristaps 398:
1.33 schwarze 399: arg = &p->argv[iarg];
400:
1.23 schwarze 401: if (arg->sz && arg->value) {
1.24 schwarze 402: for (j = (int)arg->sz - 1; j >= 0; j--)
1.23 schwarze 403: free(arg->value[j]);
404: free(arg->value);
1.1 kristaps 405: }
406:
1.23 schwarze 407: for (--p->argc; iarg < (int)p->argc; iarg++)
408: p->argv[iarg] = p->argv[iarg+1];
1.1 kristaps 409: }
410:
1.24 schwarze 411: enum margserr
1.38 schwarze 412: mdoc_zargs(struct mdoc *m, int line, int *pos, char *buf, char **v)
1.12 schwarze 413: {
414:
1.38 schwarze 415: return(args(m, line, pos, buf, ARGSFL_NONE, v));
1.12 schwarze 416: }
417:
1.24 schwarze 418: enum margserr
1.22 schwarze 419: mdoc_args(struct mdoc *m, int line, int *pos,
420: char *buf, enum mdoct tok, char **v)
1.1 kristaps 421: {
1.38 schwarze 422: enum argsflag fl;
1.1 kristaps 423: struct mdoc_node *n;
424:
1.39 ! schwarze 425: fl = mdocargs[tok].flags;
1.1 kristaps 426:
1.12 schwarze 427: if (MDOC_It != tok)
428: return(args(m, line, pos, buf, fl, v));
429:
1.30 schwarze 430: /*
431: * We know that we're in an `It', so it's reasonable to expect
432: * us to be sitting in a `Bl'. Someday this may not be the case
433: * (if we allow random `It's sitting out there), so provide a
434: * safe fall-back into the default behaviour.
1.1 kristaps 435: */
436:
1.12 schwarze 437: for (n = m->last; n; n = n->parent)
1.30 schwarze 438: if (MDOC_Bl == n->tok)
1.38 schwarze 439: if (LIST_column == n->norm->Bl.type) {
440: fl = ARGSFL_TABSEP;
441: break;
442: }
1.1 kristaps 443:
1.8 schwarze 444: return(args(m, line, pos, buf, fl, v));
1.1 kristaps 445: }
446:
1.24 schwarze 447: static enum margserr
1.12 schwarze 448: args(struct mdoc *m, int line, int *pos,
1.38 schwarze 449: char *buf, enum argsflag fl, char **v)
1.1 kristaps 450: {
1.30 schwarze 451: char *p, *pp;
452: enum margserr rc;
1.1 kristaps 453:
1.28 schwarze 454: if ('\0' == buf[*pos]) {
455: if (MDOC_PPHRASE & m->flags)
456: return(ARGS_EOLN);
457: /*
458: * If we're not in a partial phrase and the flag for
459: * being a phrase literal is still set, the punctuation
460: * is unterminated.
461: */
462: if (MDOC_PHRASELIT & m->flags)
1.36 schwarze 463: mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE);
1.28 schwarze 464:
465: m->flags &= ~MDOC_PHRASELIT;
1.1 kristaps 466: return(ARGS_EOLN);
1.28 schwarze 467: }
1.1 kristaps 468:
1.36 schwarze 469: *v = &buf[*pos];
1.1 kristaps 470:
1.38 schwarze 471: if (ARGSFL_DELIM == fl)
472: if (args_checkpunct(buf, *pos))
1.36 schwarze 473: return(ARGS_PUNCT);
1.1 kristaps 474:
1.12 schwarze 475: /*
476: * First handle TABSEP items, restricted to `Bl -column'. This
477: * ignores conventional token parsing and instead uses tabs or
478: * `Ta' macros to separate phrases. Phrases are parsed again
479: * for arguments at a later phase.
480: */
481:
1.38 schwarze 482: if (ARGSFL_TABSEP == fl) {
1.12 schwarze 483: /* Scan ahead to tab (can't be escaped). */
484: p = strchr(*v, '\t');
1.28 schwarze 485: pp = NULL;
1.12 schwarze 486:
487: /* Scan ahead to unescaped `Ta'. */
1.28 schwarze 488: if ( ! (MDOC_PHRASELIT & m->flags))
489: for (pp = *v; ; pp++) {
490: if (NULL == (pp = strstr(pp, "Ta")))
491: break;
492: if (pp > *v && ' ' != *(pp - 1))
493: continue;
1.30 schwarze 494: if (' ' == *(pp + 2) || '\0' == *(pp + 2))
1.28 schwarze 495: break;
496: }
1.1 kristaps 497:
1.24 schwarze 498: /* By default, assume a phrase. */
499: rc = ARGS_PHRASE;
500:
1.1 kristaps 501: /*
1.12 schwarze 502: * Adjust new-buffer position to be beyond delimiter
503: * mark (e.g., Ta -> end + 2).
1.1 kristaps 504: */
1.12 schwarze 505: if (p && pp) {
506: *pos += pp < p ? 2 : 1;
1.24 schwarze 507: rc = pp < p ? ARGS_PHRASE : ARGS_PPHRASE;
1.12 schwarze 508: p = pp < p ? pp : p;
509: } else if (p && ! pp) {
1.24 schwarze 510: rc = ARGS_PPHRASE;
1.12 schwarze 511: *pos += 1;
512: } else if (pp && ! p) {
513: p = pp;
514: *pos += 2;
1.25 schwarze 515: } else {
516: rc = ARGS_PEND;
1.12 schwarze 517: p = strchr(*v, 0);
1.25 schwarze 518: }
1.1 kristaps 519:
1.12 schwarze 520: /* Whitespace check for eoln case... */
1.38 schwarze 521: if ('\0' == *p && ' ' == *(p - 1))
1.36 schwarze 522: mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE);
1.12 schwarze 523:
524: *pos += (int)(p - *v);
525:
526: /* Strip delimiter's preceding whitespace. */
527: pp = p - 1;
528: while (pp > *v && ' ' == *pp) {
529: if (pp > *v && '\\' == *(pp - 1))
530: break;
531: pp--;
532: }
533: *(pp + 1) = 0;
1.1 kristaps 534:
1.12 schwarze 535: /* Strip delimiter's proceeding whitespace. */
536: for (pp = &buf[*pos]; ' ' == *pp; pp++, (*pos)++)
537: /* Skip ahead. */ ;
1.1 kristaps 538:
1.24 schwarze 539: return(rc);
1.12 schwarze 540: }
1.1 kristaps 541:
1.12 schwarze 542: /*
543: * Process a quoted literal. A quote begins with a double-quote
544: * and ends with a double-quote NOT preceded by a double-quote.
545: * Whitespace is NOT involved in literal termination.
546: */
1.1 kristaps 547:
1.28 schwarze 548: if (MDOC_PHRASELIT & m->flags || '\"' == buf[*pos]) {
549: if ( ! (MDOC_PHRASELIT & m->flags))
550: *v = &buf[++(*pos)];
551:
552: if (MDOC_PPHRASE & m->flags)
553: m->flags |= MDOC_PHRASELIT;
1.1 kristaps 554:
1.12 schwarze 555: for ( ; buf[*pos]; (*pos)++) {
556: if ('\"' != buf[*pos])
557: continue;
558: if ('\"' != buf[*pos + 1])
559: break;
560: (*pos)++;
561: }
1.1 kristaps 562:
1.28 schwarze 563: if ('\0' == buf[*pos]) {
1.38 schwarze 564: if (MDOC_PPHRASE & m->flags)
1.13 schwarze 565: return(ARGS_QWORD);
1.36 schwarze 566: mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE);
1.12 schwarze 567: return(ARGS_QWORD);
568: }
1.1 kristaps 569:
1.28 schwarze 570: m->flags &= ~MDOC_PHRASELIT;
571: buf[(*pos)++] = '\0';
1.1 kristaps 572:
1.28 schwarze 573: if ('\0' == buf[*pos])
1.12 schwarze 574: return(ARGS_QWORD);
1.1 kristaps 575:
1.12 schwarze 576: while (' ' == buf[*pos])
577: (*pos)++;
1.1 kristaps 578:
1.38 schwarze 579: if ('\0' == buf[*pos])
1.36 schwarze 580: mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE);
1.1 kristaps 581:
1.12 schwarze 582: return(ARGS_QWORD);
1.1 kristaps 583: }
584:
1.38 schwarze 585: p = &buf[*pos];
586: *v = mandoc_getarg(m->parse, &p, line, pos);
1.1 kristaps 587:
1.12 schwarze 588: return(ARGS_WORD);
1.1 kristaps 589: }
590:
1.36 schwarze 591: /*
592: * Check if the string consists only of space-separated closing
593: * delimiters. This is a bit of a dance: the first must be a close
594: * delimiter, but it may be followed by middle delimiters. Arbitrary
595: * whitespace may separate these tokens.
596: */
597: static int
1.38 schwarze 598: args_checkpunct(const char *buf, int i)
1.36 schwarze 599: {
1.38 schwarze 600: int j;
601: char dbuf[DELIMSZ];
1.36 schwarze 602: enum mdelim d;
603:
604: /* First token must be a close-delimiter. */
605:
1.38 schwarze 606: for (j = 0; buf[i] && ' ' != buf[i] && j < DELIMSZ; j++, i++)
607: dbuf[j] = buf[i];
1.1 kristaps 608:
1.36 schwarze 609: if (DELIMSZ == j)
610: return(0);
611:
1.38 schwarze 612: dbuf[j] = '\0';
613: if (DELIM_CLOSE != mdoc_isdelim(dbuf))
1.36 schwarze 614: return(0);
615:
1.38 schwarze 616: while (' ' == buf[i])
1.36 schwarze 617: i++;
618:
619: /* Remaining must NOT be open/none. */
620:
1.38 schwarze 621: while (buf[i]) {
1.36 schwarze 622: j = 0;
1.38 schwarze 623: while (buf[i] && ' ' != buf[i] && j < DELIMSZ)
624: dbuf[j++] = buf[i++];
1.36 schwarze 625:
626: if (DELIMSZ == j)
627: return(0);
628:
1.38 schwarze 629: dbuf[j] = '\0';
630: d = mdoc_isdelim(dbuf);
1.36 schwarze 631: if (DELIM_NONE == d || DELIM_OPEN == d)
632: return(0);
633:
1.38 schwarze 634: while (' ' == buf[i])
1.36 schwarze 635: i++;
636: }
637:
1.38 schwarze 638: return('\0' == buf[i]);
1.36 schwarze 639: }
640:
1.1 kristaps 641: static int
1.6 schwarze 642: argv_multi(struct mdoc *m, int line,
1.1 kristaps 643: struct mdoc_argv *v, int *pos, char *buf)
644: {
1.24 schwarze 645: enum margserr ac;
1.1 kristaps 646: char *p;
647:
648: for (v->sz = 0; ; v->sz++) {
649: if ('-' == buf[*pos])
650: break;
1.38 schwarze 651: ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
1.24 schwarze 652: if (ARGS_ERROR == ac)
1.1 kristaps 653: return(0);
1.24 schwarze 654: else if (ARGS_EOLN == ac)
1.1 kristaps 655: break;
656:
1.19 schwarze 657: if (0 == v->sz % MULTI_STEP)
658: v->value = mandoc_realloc(v->value,
1.1 kristaps 659: (v->sz + MULTI_STEP) * sizeof(char *));
1.19 schwarze 660:
661: v->value[(int)v->sz] = mandoc_strdup(p);
1.1 kristaps 662: }
663:
1.4 schwarze 664: return(1);
1.1 kristaps 665: }
666:
667: static int
1.6 schwarze 668: argv_opt_single(struct mdoc *m, int line,
1.1 kristaps 669: struct mdoc_argv *v, int *pos, char *buf)
670: {
1.24 schwarze 671: enum margserr ac;
1.1 kristaps 672: char *p;
673:
674: if ('-' == buf[*pos])
675: return(1);
676:
1.38 schwarze 677: ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
1.24 schwarze 678: if (ARGS_ERROR == ac)
1.1 kristaps 679: return(0);
1.24 schwarze 680: if (ARGS_EOLN == ac)
1.1 kristaps 681: return(1);
682:
683: v->sz = 1;
1.19 schwarze 684: v->value = mandoc_malloc(sizeof(char *));
685: v->value[0] = mandoc_strdup(p);
1.1 kristaps 686:
687: return(1);
688: }
689:
690: static int
1.6 schwarze 691: argv_single(struct mdoc *m, int line,
1.1 kristaps 692: struct mdoc_argv *v, int *pos, char *buf)
693: {
1.24 schwarze 694: int ppos;
695: enum margserr ac;
1.1 kristaps 696: char *p;
697:
698: ppos = *pos;
699:
1.38 schwarze 700: ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
1.29 schwarze 701: if (ARGS_EOLN == ac) {
702: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTARGVCOUNT);
703: return(0);
704: } else if (ARGS_ERROR == ac)
1.1 kristaps 705: return(0);
706:
707: v->sz = 1;
1.19 schwarze 708: v->value = mandoc_malloc(sizeof(char *));
709: v->value[0] = mandoc_strdup(p);
1.1 kristaps 710:
711: return(1);
712: }
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