Annotation of mandoc/mdoc_argv.c, Revision 1.107
1.107 ! schwarze 1: /* $Id: mdoc_argv.c,v 1.106 2015/10/15 22:45:43 schwarze Exp $ */
1.1 kristaps 2: /*
1.81 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.103 schwarze 4: * Copyright (c) 2012, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.3 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.101 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.3 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.101 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.3 kristaps 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.33 kristaps 18: #include "config.h"
19:
1.1 kristaps 20: #include <sys/types.h>
21:
22: #include <assert.h>
23: #include <stdlib.h>
24: #include <stdio.h>
25: #include <string.h>
26:
1.101 schwarze 27: #include "mandoc_aux.h"
28: #include "mandoc.h"
29: #include "roff.h"
1.72 kristaps 30: #include "mdoc.h"
1.101 schwarze 31: #include "libmandoc.h"
1.1 kristaps 32: #include "libmdoc.h"
33:
1.68 kristaps 34: #define MULTI_STEP 5 /* pre-allocate argument values */
1.92 schwarze 35: #define DELIMSZ 6 /* max possible size of a delimiter */
1.76 kristaps 36:
37: enum argsflag {
38: ARGSFL_NONE = 0,
39: ARGSFL_DELIM, /* handle delimiters of [[::delim::][ ]+]+ */
40: ARGSFL_TABSEP /* handle tab/`Ta' separated phrases */
41: };
42:
43: enum argvflag {
44: ARGV_NONE, /* no args to flag (e.g., -split) */
45: ARGV_SINGLE, /* one arg to flag (e.g., -file xxx) */
1.83 schwarze 46: ARGV_MULTI /* multiple args (e.g., -column xxx yyy) */
1.76 kristaps 47: };
1.1 kristaps 48:
1.78 kristaps 49: struct mdocarg {
50: enum argsflag flags;
51: const enum mdocargt *argvs;
52: };
53:
1.80 kristaps 54: static void argn_free(struct mdoc_arg *, int);
1.103 schwarze 55: static enum margserr args(struct roff_man *, int, int *,
1.76 kristaps 56: char *, enum argsflag, char **);
1.77 kristaps 57: static int args_checkpunct(const char *, int);
1.103 schwarze 58: static void argv_multi(struct roff_man *, int,
1.1 kristaps 59: struct mdoc_argv *, int *, char *);
1.103 schwarze 60: static void argv_single(struct roff_man *, int,
1.1 kristaps 61: struct mdoc_argv *, int *, char *);
1.2 kristaps 62:
1.68 kristaps 63: static const enum argvflag argvflags[MDOC_ARG_MAX] = {
1.1 kristaps 64: ARGV_NONE, /* MDOC_Split */
65: ARGV_NONE, /* MDOC_Nosplit */
66: ARGV_NONE, /* MDOC_Ragged */
67: ARGV_NONE, /* MDOC_Unfilled */
68: ARGV_NONE, /* MDOC_Literal */
1.29 kristaps 69: ARGV_SINGLE, /* MDOC_File */
1.83 schwarze 70: ARGV_SINGLE, /* MDOC_Offset */
1.1 kristaps 71: ARGV_NONE, /* MDOC_Bullet */
72: ARGV_NONE, /* MDOC_Dash */
73: ARGV_NONE, /* MDOC_Hyphen */
74: ARGV_NONE, /* MDOC_Item */
75: ARGV_NONE, /* MDOC_Enum */
76: ARGV_NONE, /* MDOC_Tag */
77: ARGV_NONE, /* MDOC_Diag */
78: ARGV_NONE, /* MDOC_Hang */
79: ARGV_NONE, /* MDOC_Ohang */
80: ARGV_NONE, /* MDOC_Inset */
81: ARGV_MULTI, /* MDOC_Column */
1.83 schwarze 82: ARGV_SINGLE, /* MDOC_Width */
1.1 kristaps 83: ARGV_NONE, /* MDOC_Compact */
1.25 kristaps 84: ARGV_NONE, /* MDOC_Std */
1.1 kristaps 85: ARGV_NONE, /* MDOC_Filled */
86: ARGV_NONE, /* MDOC_Words */
87: ARGV_NONE, /* MDOC_Emphasis */
88: ARGV_NONE, /* MDOC_Symbolic */
89: ARGV_NONE /* MDOC_Symbolic */
90: };
91:
1.73 kristaps 92: static const enum mdocargt args_Ex[] = {
93: MDOC_Std,
94: MDOC_ARG_MAX
95: };
96:
97: static const enum mdocargt args_An[] = {
98: MDOC_Split,
99: MDOC_Nosplit,
100: MDOC_ARG_MAX
101: };
102:
103: static const enum mdocargt args_Bd[] = {
104: MDOC_Ragged,
105: MDOC_Unfilled,
106: MDOC_Filled,
107: MDOC_Literal,
108: MDOC_File,
109: MDOC_Offset,
110: MDOC_Compact,
111: MDOC_Centred,
112: MDOC_ARG_MAX
113: };
114:
115: static const enum mdocargt args_Bf[] = {
116: MDOC_Emphasis,
117: MDOC_Literal,
118: MDOC_Symbolic,
119: MDOC_ARG_MAX
120: };
121:
122: static const enum mdocargt args_Bk[] = {
123: MDOC_Words,
124: MDOC_ARG_MAX
125: };
126:
127: static const enum mdocargt args_Bl[] = {
128: MDOC_Bullet,
129: MDOC_Dash,
130: MDOC_Hyphen,
131: MDOC_Item,
132: MDOC_Enum,
133: MDOC_Tag,
134: MDOC_Diag,
135: MDOC_Hang,
136: MDOC_Ohang,
137: MDOC_Inset,
138: MDOC_Column,
139: MDOC_Width,
140: MDOC_Offset,
141: MDOC_Compact,
142: MDOC_Nested,
143: MDOC_ARG_MAX
144: };
145:
1.78 kristaps 146: static const struct mdocarg mdocargs[MDOC_MAX] = {
1.84 schwarze 147: { ARGSFL_DELIM, NULL }, /* Ap */
1.78 kristaps 148: { ARGSFL_NONE, NULL }, /* Dd */
149: { ARGSFL_NONE, NULL }, /* Dt */
150: { ARGSFL_NONE, NULL }, /* Os */
151: { ARGSFL_NONE, NULL }, /* Sh */
1.92 schwarze 152: { ARGSFL_NONE, NULL }, /* Ss */
153: { ARGSFL_NONE, NULL }, /* Pp */
1.78 kristaps 154: { ARGSFL_DELIM, NULL }, /* D1 */
155: { ARGSFL_DELIM, NULL }, /* Dl */
156: { ARGSFL_NONE, args_Bd }, /* Bd */
157: { ARGSFL_NONE, NULL }, /* Ed */
158: { ARGSFL_NONE, args_Bl }, /* Bl */
159: { ARGSFL_NONE, NULL }, /* El */
160: { ARGSFL_NONE, NULL }, /* It */
1.92 schwarze 161: { ARGSFL_DELIM, NULL }, /* Ad */
1.78 kristaps 162: { ARGSFL_DELIM, args_An }, /* An */
163: { ARGSFL_DELIM, NULL }, /* Ar */
1.86 schwarze 164: { ARGSFL_DELIM, NULL }, /* Cd */
1.78 kristaps 165: { ARGSFL_DELIM, NULL }, /* Cm */
1.92 schwarze 166: { ARGSFL_DELIM, NULL }, /* Dv */
167: { ARGSFL_DELIM, NULL }, /* Er */
168: { ARGSFL_DELIM, NULL }, /* Ev */
1.78 kristaps 169: { ARGSFL_NONE, args_Ex }, /* Ex */
1.92 schwarze 170: { ARGSFL_DELIM, NULL }, /* Fa */
171: { ARGSFL_NONE, NULL }, /* Fd */
1.78 kristaps 172: { ARGSFL_DELIM, NULL }, /* Fl */
1.92 schwarze 173: { ARGSFL_DELIM, NULL }, /* Fn */
174: { ARGSFL_DELIM, NULL }, /* Ft */
175: { ARGSFL_DELIM, NULL }, /* Ic */
176: { ARGSFL_DELIM, NULL }, /* In */
1.78 kristaps 177: { ARGSFL_DELIM, NULL }, /* Li */
1.92 schwarze 178: { ARGSFL_NONE, NULL }, /* Nd */
179: { ARGSFL_DELIM, NULL }, /* Nm */
1.78 kristaps 180: { ARGSFL_DELIM, NULL }, /* Op */
1.94 schwarze 181: { ARGSFL_DELIM, NULL }, /* Ot */
1.78 kristaps 182: { ARGSFL_DELIM, NULL }, /* Pa */
183: { ARGSFL_NONE, args_Ex }, /* Rv */
1.92 schwarze 184: { ARGSFL_DELIM, NULL }, /* St */
1.78 kristaps 185: { ARGSFL_DELIM, NULL }, /* Va */
1.92 schwarze 186: { ARGSFL_DELIM, NULL }, /* Vt */
1.78 kristaps 187: { ARGSFL_DELIM, NULL }, /* Xr */
188: { ARGSFL_NONE, NULL }, /* %A */
189: { ARGSFL_NONE, NULL }, /* %B */
190: { ARGSFL_NONE, NULL }, /* %D */
191: { ARGSFL_NONE, NULL }, /* %I */
192: { ARGSFL_NONE, NULL }, /* %J */
193: { ARGSFL_NONE, NULL }, /* %N */
194: { ARGSFL_NONE, NULL }, /* %O */
195: { ARGSFL_NONE, NULL }, /* %P */
196: { ARGSFL_NONE, NULL }, /* %R */
197: { ARGSFL_NONE, NULL }, /* %T */
198: { ARGSFL_NONE, NULL }, /* %V */
199: { ARGSFL_DELIM, NULL }, /* Ac */
200: { ARGSFL_NONE, NULL }, /* Ao */
201: { ARGSFL_DELIM, NULL }, /* Aq */
202: { ARGSFL_DELIM, NULL }, /* At */
203: { ARGSFL_DELIM, NULL }, /* Bc */
1.92 schwarze 204: { ARGSFL_NONE, args_Bf }, /* Bf */
1.78 kristaps 205: { ARGSFL_NONE, NULL }, /* Bo */
206: { ARGSFL_DELIM, NULL }, /* Bq */
207: { ARGSFL_DELIM, NULL }, /* Bsx */
208: { ARGSFL_DELIM, NULL }, /* Bx */
209: { ARGSFL_NONE, NULL }, /* Db */
210: { ARGSFL_DELIM, NULL }, /* Dc */
211: { ARGSFL_NONE, NULL }, /* Do */
212: { ARGSFL_DELIM, NULL }, /* Dq */
213: { ARGSFL_DELIM, NULL }, /* Ec */
214: { ARGSFL_NONE, NULL }, /* Ef */
1.92 schwarze 215: { ARGSFL_DELIM, NULL }, /* Em */
1.78 kristaps 216: { ARGSFL_NONE, NULL }, /* Eo */
217: { ARGSFL_DELIM, NULL }, /* Fx */
218: { ARGSFL_DELIM, NULL }, /* Ms */
219: { ARGSFL_DELIM, NULL }, /* No */
220: { ARGSFL_DELIM, NULL }, /* Ns */
221: { ARGSFL_DELIM, NULL }, /* Nx */
222: { ARGSFL_DELIM, NULL }, /* Ox */
223: { ARGSFL_DELIM, NULL }, /* Pc */
224: { ARGSFL_DELIM, NULL }, /* Pf */
225: { ARGSFL_NONE, NULL }, /* Po */
226: { ARGSFL_DELIM, NULL }, /* Pq */
227: { ARGSFL_DELIM, NULL }, /* Qc */
228: { ARGSFL_DELIM, NULL }, /* Ql */
229: { ARGSFL_NONE, NULL }, /* Qo */
230: { ARGSFL_DELIM, NULL }, /* Qq */
231: { ARGSFL_NONE, NULL }, /* Re */
232: { ARGSFL_NONE, NULL }, /* Rs */
233: { ARGSFL_DELIM, NULL }, /* Sc */
234: { ARGSFL_NONE, NULL }, /* So */
235: { ARGSFL_DELIM, NULL }, /* Sq */
236: { ARGSFL_NONE, NULL }, /* Sm */
237: { ARGSFL_DELIM, NULL }, /* Sx */
238: { ARGSFL_DELIM, NULL }, /* Sy */
239: { ARGSFL_DELIM, NULL }, /* Tn */
240: { ARGSFL_DELIM, NULL }, /* Ux */
241: { ARGSFL_DELIM, NULL }, /* Xc */
242: { ARGSFL_NONE, NULL }, /* Xo */
1.92 schwarze 243: { ARGSFL_NONE, NULL }, /* Fo */
244: { ARGSFL_DELIM, NULL }, /* Fc */
1.78 kristaps 245: { ARGSFL_NONE, NULL }, /* Oo */
246: { ARGSFL_DELIM, NULL }, /* Oc */
247: { ARGSFL_NONE, args_Bk }, /* Bk */
248: { ARGSFL_NONE, NULL }, /* Ek */
249: { ARGSFL_NONE, NULL }, /* Bt */
250: { ARGSFL_NONE, NULL }, /* Hf */
1.94 schwarze 251: { ARGSFL_DELIM, NULL }, /* Fr */
1.78 kristaps 252: { ARGSFL_NONE, NULL }, /* Ud */
1.86 schwarze 253: { ARGSFL_DELIM, NULL }, /* Lb */
1.78 kristaps 254: { ARGSFL_NONE, NULL }, /* Lp */
255: { ARGSFL_DELIM, NULL }, /* Lk */
256: { ARGSFL_DELIM, NULL }, /* Mt */
257: { ARGSFL_DELIM, NULL }, /* Brq */
258: { ARGSFL_NONE, NULL }, /* Bro */
259: { ARGSFL_DELIM, NULL }, /* Brc */
260: { ARGSFL_NONE, NULL }, /* %C */
261: { ARGSFL_NONE, NULL }, /* Es */
1.94 schwarze 262: { ARGSFL_DELIM, NULL }, /* En */
1.88 schwarze 263: { ARGSFL_DELIM, NULL }, /* Dx */
1.78 kristaps 264: { ARGSFL_NONE, NULL }, /* %Q */
265: { ARGSFL_NONE, NULL }, /* br */
266: { ARGSFL_NONE, NULL }, /* sp */
267: { ARGSFL_NONE, NULL }, /* %U */
268: { ARGSFL_NONE, NULL }, /* Ta */
1.91 schwarze 269: { ARGSFL_NONE, NULL }, /* ll */
1.78 kristaps 270: };
271:
272:
1.1 kristaps 273: /*
1.98 schwarze 274: * Parse flags and their arguments from the input line.
275: * These come in the form -flag [argument ...].
276: * Some flags take no argument, some one, some multiple.
1.1 kristaps 277: */
1.98 schwarze 278: void
1.103 schwarze 279: mdoc_argv(struct roff_man *mdoc, int line, int tok,
1.98 schwarze 280: struct mdoc_arg **reta, int *pos, char *buf)
1.1 kristaps 281: {
1.98 schwarze 282: struct mdoc_argv tmpv;
283: struct mdoc_argv **retv;
284: const enum mdocargt *argtable;
285: char *argname;
286: int ipos, retc;
287: char savechar;
1.1 kristaps 288:
1.98 schwarze 289: *reta = NULL;
1.1 kristaps 290:
1.98 schwarze 291: /* Which flags does this macro support? */
1.1 kristaps 292:
1.98 schwarze 293: argtable = mdocargs[tok].argvs;
294: if (argtable == NULL)
295: return;
1.1 kristaps 296:
1.98 schwarze 297: /* Loop over the flags on the input line. */
298:
299: ipos = *pos;
300: while (buf[ipos] == '-') {
301:
302: /* Seek to the first unescaped space. */
1.1 kristaps 303:
1.98 schwarze 304: for (argname = buf + ++ipos; buf[ipos] != '\0'; ipos++)
305: if (buf[ipos] == ' ' && buf[ipos - 1] != '\\')
306: break;
1.1 kristaps 307:
1.98 schwarze 308: /*
309: * We want to nil-terminate the word to look it up.
310: * But we may not have a flag, in which case we need
311: * to restore the line as-is. So keep around the
312: * stray byte, which we'll reset upon exiting.
313: */
314:
315: if ((savechar = buf[ipos]) != '\0')
316: buf[ipos++] = '\0';
1.1 kristaps 317:
1.92 schwarze 318: /*
1.98 schwarze 319: * Now look up the word as a flag. Use temporary
320: * storage that we'll copy into the node's flags.
1.78 kristaps 321: */
1.1 kristaps 322:
1.98 schwarze 323: while ((tmpv.arg = *argtable++) != MDOC_ARG_MAX)
324: if ( ! strcmp(argname, mdoc_argnames[tmpv.arg]))
325: break;
326:
327: /* If it isn't a flag, restore the saved byte. */
328:
329: if (tmpv.arg == MDOC_ARG_MAX) {
330: if (savechar != '\0')
331: buf[ipos - 1] = savechar;
332: break;
333: }
334:
335: /* Read to the next word (the first argument). */
336:
337: while (buf[ipos] == ' ')
338: ipos++;
339:
340: /* Parse the arguments of the flag. */
1.78 kristaps 341:
1.98 schwarze 342: tmpv.line = line;
1.100 schwarze 343: tmpv.pos = *pos;
1.98 schwarze 344: tmpv.sz = 0;
345: tmpv.value = NULL;
1.1 kristaps 346:
1.98 schwarze 347: switch (argvflags[tmpv.arg]) {
348: case ARGV_SINGLE:
349: argv_single(mdoc, line, &tmpv, &ipos, buf);
350: break;
351: case ARGV_MULTI:
352: argv_multi(mdoc, line, &tmpv, &ipos, buf);
353: break;
354: case ARGV_NONE:
355: break;
356: }
357:
358: /* Append to the return values. */
1.1 kristaps 359:
1.98 schwarze 360: if (*reta == NULL)
361: *reta = mandoc_calloc(1, sizeof(**reta));
1.1 kristaps 362:
1.98 schwarze 363: retc = ++(*reta)->argc;
364: retv = &(*reta)->argv;
365: *retv = mandoc_reallocarray(*retv, retc, sizeof(**retv));
366: memcpy(*retv + retc - 1, &tmpv, sizeof(**retv));
1.2 kristaps 367:
1.98 schwarze 368: /* Prepare for parsing the next flag. */
1.1 kristaps 369:
1.98 schwarze 370: *pos = ipos;
371: argtable = mdocargs[tok].argvs;
372: }
1.1 kristaps 373: }
374:
375: void
376: mdoc_argv_free(struct mdoc_arg *p)
377: {
1.37 kristaps 378: int i;
1.1 kristaps 379:
380: if (NULL == p)
381: return;
382:
383: if (p->refcnt) {
384: --(p->refcnt);
385: if (p->refcnt)
386: return;
387: }
388: assert(p->argc);
389:
1.37 kristaps 390: for (i = (int)p->argc - 1; i >= 0; i--)
1.71 kristaps 391: argn_free(p, i);
1.37 kristaps 392:
393: free(p->argv);
394: free(p);
395: }
396:
1.71 kristaps 397: static void
398: argn_free(struct mdoc_arg *p, int iarg)
1.37 kristaps 399: {
1.58 kristaps 400: struct mdoc_argv *arg;
1.37 kristaps 401: int j;
1.58 kristaps 402:
403: arg = &p->argv[iarg];
1.1 kristaps 404:
1.37 kristaps 405: if (arg->sz && arg->value) {
1.92 schwarze 406: for (j = (int)arg->sz - 1; j >= 0; j--)
1.37 kristaps 407: free(arg->value[j]);
408: free(arg->value);
1.1 kristaps 409: }
410:
1.37 kristaps 411: for (--p->argc; iarg < (int)p->argc; iarg++)
412: p->argv[iarg] = p->argv[iarg+1];
1.1 kristaps 413: }
414:
1.39 kristaps 415: enum margserr
1.103 schwarze 416: mdoc_args(struct roff_man *mdoc, int line, int *pos,
1.102 schwarze 417: char *buf, int tok, char **v)
1.1 kristaps 418: {
1.102 schwarze 419: struct roff_node *n;
1.99 schwarze 420: char *v_local;
1.76 kristaps 421: enum argsflag fl;
1.1 kristaps 422:
1.99 schwarze 423: if (v == NULL)
424: v = &v_local;
1.104 schwarze 425: fl = tok == TOKEN_NONE ? ARGSFL_NONE : mdocargs[tok].flags;
1.99 schwarze 426: if (tok != MDOC_It)
1.105 schwarze 427: return args(mdoc, line, pos, buf, fl, v);
1.17 kristaps 428:
1.51 kristaps 429: /*
430: * We know that we're in an `It', so it's reasonable to expect
431: * us to be sitting in a `Bl'. Someday this may not be the case
432: * (if we allow random `It's sitting out there), so provide a
433: * safe fall-back into the default behaviour.
434: */
435:
1.85 schwarze 436: for (n = mdoc->last; n; n = n->parent)
1.50 kristaps 437: if (MDOC_Bl == n->tok)
1.76 kristaps 438: if (LIST_column == n->norm->Bl.type) {
439: fl = ARGSFL_TABSEP;
440: break;
441: }
1.1 kristaps 442:
1.105 schwarze 443: return args(mdoc, line, pos, buf, fl, v);
1.1 kristaps 444: }
445:
1.39 kristaps 446: static enum margserr
1.103 schwarze 447: args(struct roff_man *mdoc, int line, int *pos,
1.76 kristaps 448: char *buf, enum argsflag fl, char **v)
1.1 kristaps 449: {
1.106 schwarze 450: char *p;
1.87 schwarze 451: int pairs;
1.1 kristaps 452:
1.106 schwarze 453: if (buf[*pos] == '\0') {
454: if (mdoc->flags & MDOC_PHRASELIT &&
1.107 ! schwarze 455: ! (mdoc->flags & MDOC_PHRASE)) {
1.95 schwarze 456: mandoc_msg(MANDOCERR_ARG_QUOTE,
457: mdoc->parse, line, *pos, NULL);
1.106 schwarze 458: mdoc->flags &= ~MDOC_PHRASELIT;
459: }
1.105 schwarze 460: return ARGS_EOLN;
1.46 kristaps 461: }
1.1 kristaps 462:
1.106 schwarze 463: *v = buf + *pos;
1.17 kristaps 464:
1.106 schwarze 465: if (fl == ARGSFL_DELIM && args_checkpunct(buf, *pos))
466: return ARGS_PUNCT;
1.1 kristaps 467:
1.17 kristaps 468: /*
1.106 schwarze 469: * Tabs in `It' lines in `Bl -column' can't be escaped.
470: * Phrases are reparsed for `Ta' and other macros later.
1.17 kristaps 471: */
1.1 kristaps 472:
1.106 schwarze 473: if (fl == ARGSFL_TABSEP) {
474: if ((p = strchr(*v, '\t')) != NULL) {
1.107 ! schwarze 475:
! 476: /*
! 477: * Words right before and right after
! 478: * tab characters are not parsed,
! 479: * unless there is a blank in between.
! 480: */
! 481:
! 482: if (p[-1] != ' ')
! 483: mdoc->flags |= MDOC_PHRASEQL;
! 484: if (p[1] != ' ')
! 485: mdoc->flags |= MDOC_PHRASEQN;
! 486:
! 487: /*
! 488: * One or more blanks after a tab cause
! 489: * one leading blank in the next column.
! 490: * So skip all but one of them.
! 491: */
! 492:
1.106 schwarze 493: *pos += (int)(p - *v) + 1;
1.107 ! schwarze 494: while (buf[*pos] == ' ' && buf[*pos + 1] == ' ')
1.106 schwarze 495: (*pos)++;
1.107 ! schwarze 496:
! 497: /*
! 498: * A tab at the end of an input line
! 499: * switches to the next column.
! 500: */
! 501:
! 502: if (buf[*pos] == '\0' || buf[*pos + 1] == '\0')
! 503: mdoc->flags |= MDOC_PHRASEQN;
1.44 kristaps 504: } else {
1.106 schwarze 505: p = strchr(*v, '\0');
506: if (p[-1] == ' ')
507: mandoc_msg(MANDOCERR_SPACE_EOL,
508: mdoc->parse, line, *pos, NULL);
509: *pos += (int)(p - *v);
1.17 kristaps 510: }
511:
1.106 schwarze 512: /* Skip any trailing blank characters. */
513: while (p > *v && p[-1] == ' ' &&
514: (p - 1 == *v || p[-2] != '\\'))
515: p--;
516: *p = '\0';
1.1 kristaps 517:
1.107 ! schwarze 518: return ARGS_PHRASE;
1.89 schwarze 519: }
1.1 kristaps 520:
1.89 schwarze 521: /*
1.17 kristaps 522: * Process a quoted literal. A quote begins with a double-quote
523: * and ends with a double-quote NOT preceded by a double-quote.
1.89 schwarze 524: * NUL-terminate the literal in place.
1.87 schwarze 525: * Collapse pairs of quotes inside quoted literals.
1.17 kristaps 526: * Whitespace is NOT involved in literal termination.
527: */
1.1 kristaps 528:
1.107 ! schwarze 529: if (mdoc->flags & MDOC_PHRASELIT || buf[*pos] == '\"') {
! 530: if ( ! (mdoc->flags & MDOC_PHRASELIT))
1.46 kristaps 531: *v = &buf[++(*pos)];
532:
1.107 ! schwarze 533: if (mdoc->flags & MDOC_PHRASE)
1.85 schwarze 534: mdoc->flags |= MDOC_PHRASELIT;
1.1 kristaps 535:
1.87 schwarze 536: pairs = 0;
1.17 kristaps 537: for ( ; buf[*pos]; (*pos)++) {
1.87 schwarze 538: /* Move following text left after quoted quotes. */
539: if (pairs)
540: buf[*pos - pairs] = buf[*pos];
1.17 kristaps 541: if ('\"' != buf[*pos])
542: continue;
1.87 schwarze 543: /* Unquoted quotes end quoted args. */
1.17 kristaps 544: if ('\"' != buf[*pos + 1])
545: break;
1.87 schwarze 546: /* Quoted quotes collapse. */
547: pairs++;
1.17 kristaps 548: (*pos)++;
549: }
1.87 schwarze 550: if (pairs)
551: buf[*pos - pairs] = '\0';
1.1 kristaps 552:
1.107 ! schwarze 553: if (buf[*pos] == '\0') {
! 554: if ( ! (mdoc->flags & MDOC_PHRASE))
! 555: mandoc_msg(MANDOCERR_ARG_QUOTE,
! 556: mdoc->parse, line, *pos, NULL);
1.105 schwarze 557: return ARGS_QWORD;
1.17 kristaps 558: }
1.1 kristaps 559:
1.85 schwarze 560: mdoc->flags &= ~MDOC_PHRASELIT;
1.46 kristaps 561: buf[(*pos)++] = '\0';
1.1 kristaps 562:
1.46 kristaps 563: if ('\0' == buf[*pos])
1.105 schwarze 564: return ARGS_QWORD;
1.1 kristaps 565:
1.17 kristaps 566: while (' ' == buf[*pos])
567: (*pos)++;
1.1 kristaps 568:
1.76 kristaps 569: if ('\0' == buf[*pos])
1.95 schwarze 570: mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
571: line, *pos, NULL);
1.1 kristaps 572:
1.105 schwarze 573: return ARGS_QWORD;
1.1 kristaps 574: }
575:
1.75 kristaps 576: p = &buf[*pos];
1.85 schwarze 577: *v = mandoc_getarg(mdoc->parse, &p, line, pos);
1.1 kristaps 578:
1.107 ! schwarze 579: /*
! 580: * After parsing the last word in this phrase,
! 581: * tell lookup() whether or not to interpret it.
! 582: */
! 583:
! 584: if (*p == '\0' && mdoc->flags & MDOC_PHRASEQL) {
! 585: mdoc->flags &= ~MDOC_PHRASEQL;
! 586: mdoc->flags |= MDOC_PHRASEQF;
! 587: }
1.105 schwarze 588: return ARGS_WORD;
1.64 kristaps 589: }
590:
1.92 schwarze 591: /*
1.64 kristaps 592: * Check if the string consists only of space-separated closing
1.65 kristaps 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.
1.64 kristaps 596: */
597: static int
1.77 kristaps 598: args_checkpunct(const char *buf, int i)
1.64 kristaps 599: {
1.69 kristaps 600: int j;
601: char dbuf[DELIMSZ];
1.64 kristaps 602: enum mdelim d;
603:
1.65 kristaps 604: /* First token must be a close-delimiter. */
605:
1.69 kristaps 606: for (j = 0; buf[i] && ' ' != buf[i] && j < DELIMSZ; j++, i++)
607: dbuf[j] = buf[i];
1.65 kristaps 608:
609: if (DELIMSZ == j)
1.105 schwarze 610: return 0;
1.65 kristaps 611:
1.69 kristaps 612: dbuf[j] = '\0';
1.70 kristaps 613: if (DELIM_CLOSE != mdoc_isdelim(dbuf))
1.105 schwarze 614: return 0;
1.64 kristaps 615:
1.69 kristaps 616: while (' ' == buf[i])
1.65 kristaps 617: i++;
618:
619: /* Remaining must NOT be open/none. */
1.92 schwarze 620:
1.69 kristaps 621: while (buf[i]) {
1.65 kristaps 622: j = 0;
1.69 kristaps 623: while (buf[i] && ' ' != buf[i] && j < DELIMSZ)
624: dbuf[j++] = buf[i++];
1.65 kristaps 625:
626: if (DELIMSZ == j)
1.105 schwarze 627: return 0;
1.65 kristaps 628:
1.69 kristaps 629: dbuf[j] = '\0';
1.70 kristaps 630: d = mdoc_isdelim(dbuf);
1.64 kristaps 631: if (DELIM_NONE == d || DELIM_OPEN == d)
1.105 schwarze 632: return 0;
1.65 kristaps 633:
1.69 kristaps 634: while (' ' == buf[i])
1.64 kristaps 635: i++;
636: }
1.69 kristaps 637:
1.105 schwarze 638: return '\0' == buf[i];
1.1 kristaps 639: }
640:
1.97 schwarze 641: static void
1.103 schwarze 642: argv_multi(struct roff_man *mdoc, int line,
1.1 kristaps 643: struct mdoc_argv *v, int *pos, char *buf)
644: {
1.43 kristaps 645: enum margserr ac;
1.1 kristaps 646: char *p;
647:
648: for (v->sz = 0; ; v->sz++) {
1.97 schwarze 649: if (buf[*pos] == '-')
1.1 kristaps 650: break;
1.85 schwarze 651: ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
1.97 schwarze 652: if (ac == ARGS_EOLN)
1.1 kristaps 653: break;
654:
1.97 schwarze 655: if (v->sz % MULTI_STEP == 0)
1.93 schwarze 656: v->value = mandoc_reallocarray(v->value,
657: v->sz + MULTI_STEP, sizeof(char *));
1.31 kristaps 658:
659: v->value[(int)v->sz] = mandoc_strdup(p);
1.1 kristaps 660: }
661: }
662:
1.97 schwarze 663: static void
1.103 schwarze 664: argv_single(struct roff_man *mdoc, int line,
1.1 kristaps 665: struct mdoc_argv *v, int *pos, char *buf)
666: {
1.43 kristaps 667: enum margserr ac;
1.1 kristaps 668: char *p;
669:
1.85 schwarze 670: ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
1.97 schwarze 671: if (ac == ARGS_EOLN)
672: return;
1.1 kristaps 673:
674: v->sz = 1;
1.31 kristaps 675: v->value = mandoc_malloc(sizeof(char *));
676: v->value[0] = mandoc_strdup(p);
1.1 kristaps 677: }
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