Annotation of mandoc/mdoc_argv.c, Revision 1.110
1.110 ! schwarze 1: /* $Id: mdoc_argv.c,v 1.109 2016/08/28 16:15:12 schwarze Exp $ */
1.1 kristaps 2: /*
1.81 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.110 ! schwarze 4: * Copyright (c) 2012, 2014-2017 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"
1.108 schwarze 32: #include "roff_int.h"
1.1 kristaps 33: #include "libmdoc.h"
34:
1.68 kristaps 35: #define MULTI_STEP 5 /* pre-allocate argument values */
1.92 schwarze 36: #define DELIMSZ 6 /* max possible size of a delimiter */
1.76 kristaps 37:
38: enum argsflag {
39: ARGSFL_NONE = 0,
40: ARGSFL_DELIM, /* handle delimiters of [[::delim::][ ]+]+ */
41: ARGSFL_TABSEP /* handle tab/`Ta' separated phrases */
42: };
43:
44: enum argvflag {
45: ARGV_NONE, /* no args to flag (e.g., -split) */
46: ARGV_SINGLE, /* one arg to flag (e.g., -file xxx) */
1.83 schwarze 47: ARGV_MULTI /* multiple args (e.g., -column xxx yyy) */
1.76 kristaps 48: };
1.1 kristaps 49:
1.78 kristaps 50: struct mdocarg {
51: enum argsflag flags;
52: const enum mdocargt *argvs;
53: };
54:
1.80 kristaps 55: static void argn_free(struct mdoc_arg *, int);
1.103 schwarze 56: static enum margserr args(struct roff_man *, int, int *,
1.76 kristaps 57: char *, enum argsflag, char **);
1.77 kristaps 58: static int args_checkpunct(const char *, int);
1.103 schwarze 59: static void argv_multi(struct roff_man *, int,
1.1 kristaps 60: struct mdoc_argv *, int *, char *);
1.103 schwarze 61: static void argv_single(struct roff_man *, int,
1.1 kristaps 62: struct mdoc_argv *, int *, char *);
1.2 kristaps 63:
1.68 kristaps 64: static const enum argvflag argvflags[MDOC_ARG_MAX] = {
1.1 kristaps 65: ARGV_NONE, /* MDOC_Split */
66: ARGV_NONE, /* MDOC_Nosplit */
67: ARGV_NONE, /* MDOC_Ragged */
68: ARGV_NONE, /* MDOC_Unfilled */
69: ARGV_NONE, /* MDOC_Literal */
1.29 kristaps 70: ARGV_SINGLE, /* MDOC_File */
1.83 schwarze 71: ARGV_SINGLE, /* MDOC_Offset */
1.1 kristaps 72: ARGV_NONE, /* MDOC_Bullet */
73: ARGV_NONE, /* MDOC_Dash */
74: ARGV_NONE, /* MDOC_Hyphen */
75: ARGV_NONE, /* MDOC_Item */
76: ARGV_NONE, /* MDOC_Enum */
77: ARGV_NONE, /* MDOC_Tag */
78: ARGV_NONE, /* MDOC_Diag */
79: ARGV_NONE, /* MDOC_Hang */
80: ARGV_NONE, /* MDOC_Ohang */
81: ARGV_NONE, /* MDOC_Inset */
82: ARGV_MULTI, /* MDOC_Column */
1.83 schwarze 83: ARGV_SINGLE, /* MDOC_Width */
1.1 kristaps 84: ARGV_NONE, /* MDOC_Compact */
1.25 kristaps 85: ARGV_NONE, /* MDOC_Std */
1.1 kristaps 86: ARGV_NONE, /* MDOC_Filled */
87: ARGV_NONE, /* MDOC_Words */
88: ARGV_NONE, /* MDOC_Emphasis */
89: ARGV_NONE, /* MDOC_Symbolic */
90: ARGV_NONE /* MDOC_Symbolic */
91: };
92:
1.73 kristaps 93: static const enum mdocargt args_Ex[] = {
94: MDOC_Std,
95: MDOC_ARG_MAX
96: };
97:
98: static const enum mdocargt args_An[] = {
99: MDOC_Split,
100: MDOC_Nosplit,
101: MDOC_ARG_MAX
102: };
103:
104: static const enum mdocargt args_Bd[] = {
105: MDOC_Ragged,
106: MDOC_Unfilled,
107: MDOC_Filled,
108: MDOC_Literal,
109: MDOC_File,
110: MDOC_Offset,
111: MDOC_Compact,
112: MDOC_Centred,
113: MDOC_ARG_MAX
114: };
115:
116: static const enum mdocargt args_Bf[] = {
117: MDOC_Emphasis,
118: MDOC_Literal,
119: MDOC_Symbolic,
120: MDOC_ARG_MAX
121: };
122:
123: static const enum mdocargt args_Bk[] = {
124: MDOC_Words,
125: MDOC_ARG_MAX
126: };
127:
128: static const enum mdocargt args_Bl[] = {
129: MDOC_Bullet,
130: MDOC_Dash,
131: MDOC_Hyphen,
132: MDOC_Item,
133: MDOC_Enum,
134: MDOC_Tag,
135: MDOC_Diag,
136: MDOC_Hang,
137: MDOC_Ohang,
138: MDOC_Inset,
139: MDOC_Column,
140: MDOC_Width,
141: MDOC_Offset,
142: MDOC_Compact,
143: MDOC_Nested,
144: MDOC_ARG_MAX
145: };
146:
1.78 kristaps 147: static const struct mdocarg mdocargs[MDOC_MAX] = {
1.84 schwarze 148: { ARGSFL_DELIM, NULL }, /* Ap */
1.78 kristaps 149: { ARGSFL_NONE, NULL }, /* Dd */
150: { ARGSFL_NONE, NULL }, /* Dt */
151: { ARGSFL_NONE, NULL }, /* Os */
152: { ARGSFL_NONE, NULL }, /* Sh */
1.92 schwarze 153: { ARGSFL_NONE, NULL }, /* Ss */
154: { ARGSFL_NONE, NULL }, /* Pp */
1.78 kristaps 155: { ARGSFL_DELIM, NULL }, /* D1 */
156: { ARGSFL_DELIM, NULL }, /* Dl */
157: { ARGSFL_NONE, args_Bd }, /* Bd */
158: { ARGSFL_NONE, NULL }, /* Ed */
159: { ARGSFL_NONE, args_Bl }, /* Bl */
160: { ARGSFL_NONE, NULL }, /* El */
161: { ARGSFL_NONE, NULL }, /* It */
1.92 schwarze 162: { ARGSFL_DELIM, NULL }, /* Ad */
1.78 kristaps 163: { ARGSFL_DELIM, args_An }, /* An */
164: { ARGSFL_DELIM, NULL }, /* Ar */
1.86 schwarze 165: { ARGSFL_DELIM, NULL }, /* Cd */
1.78 kristaps 166: { ARGSFL_DELIM, NULL }, /* Cm */
1.92 schwarze 167: { ARGSFL_DELIM, NULL }, /* Dv */
168: { ARGSFL_DELIM, NULL }, /* Er */
169: { ARGSFL_DELIM, NULL }, /* Ev */
1.78 kristaps 170: { ARGSFL_NONE, args_Ex }, /* Ex */
1.92 schwarze 171: { ARGSFL_DELIM, NULL }, /* Fa */
172: { ARGSFL_NONE, NULL }, /* Fd */
1.78 kristaps 173: { ARGSFL_DELIM, NULL }, /* Fl */
1.92 schwarze 174: { ARGSFL_DELIM, NULL }, /* Fn */
175: { ARGSFL_DELIM, NULL }, /* Ft */
176: { ARGSFL_DELIM, NULL }, /* Ic */
177: { ARGSFL_DELIM, NULL }, /* In */
1.78 kristaps 178: { ARGSFL_DELIM, NULL }, /* Li */
1.92 schwarze 179: { ARGSFL_NONE, NULL }, /* Nd */
180: { ARGSFL_DELIM, NULL }, /* Nm */
1.78 kristaps 181: { ARGSFL_DELIM, NULL }, /* Op */
1.94 schwarze 182: { ARGSFL_DELIM, NULL }, /* Ot */
1.78 kristaps 183: { ARGSFL_DELIM, NULL }, /* Pa */
184: { ARGSFL_NONE, args_Ex }, /* Rv */
1.92 schwarze 185: { ARGSFL_DELIM, NULL }, /* St */
1.78 kristaps 186: { ARGSFL_DELIM, NULL }, /* Va */
1.92 schwarze 187: { ARGSFL_DELIM, NULL }, /* Vt */
1.78 kristaps 188: { ARGSFL_DELIM, NULL }, /* Xr */
189: { ARGSFL_NONE, NULL }, /* %A */
190: { ARGSFL_NONE, NULL }, /* %B */
191: { ARGSFL_NONE, NULL }, /* %D */
192: { ARGSFL_NONE, NULL }, /* %I */
193: { ARGSFL_NONE, NULL }, /* %J */
194: { ARGSFL_NONE, NULL }, /* %N */
195: { ARGSFL_NONE, NULL }, /* %O */
196: { ARGSFL_NONE, NULL }, /* %P */
197: { ARGSFL_NONE, NULL }, /* %R */
198: { ARGSFL_NONE, NULL }, /* %T */
199: { ARGSFL_NONE, NULL }, /* %V */
200: { ARGSFL_DELIM, NULL }, /* Ac */
201: { ARGSFL_NONE, NULL }, /* Ao */
202: { ARGSFL_DELIM, NULL }, /* Aq */
203: { ARGSFL_DELIM, NULL }, /* At */
204: { ARGSFL_DELIM, NULL }, /* Bc */
1.92 schwarze 205: { ARGSFL_NONE, args_Bf }, /* Bf */
1.78 kristaps 206: { ARGSFL_NONE, NULL }, /* Bo */
207: { ARGSFL_DELIM, NULL }, /* Bq */
208: { ARGSFL_DELIM, NULL }, /* Bsx */
209: { ARGSFL_DELIM, NULL }, /* Bx */
210: { ARGSFL_NONE, NULL }, /* Db */
211: { ARGSFL_DELIM, NULL }, /* Dc */
212: { ARGSFL_NONE, NULL }, /* Do */
213: { ARGSFL_DELIM, NULL }, /* Dq */
214: { ARGSFL_DELIM, NULL }, /* Ec */
215: { ARGSFL_NONE, NULL }, /* Ef */
1.92 schwarze 216: { ARGSFL_DELIM, NULL }, /* Em */
1.78 kristaps 217: { ARGSFL_NONE, NULL }, /* Eo */
218: { ARGSFL_DELIM, NULL }, /* Fx */
219: { ARGSFL_DELIM, NULL }, /* Ms */
220: { ARGSFL_DELIM, NULL }, /* No */
221: { ARGSFL_DELIM, NULL }, /* Ns */
222: { ARGSFL_DELIM, NULL }, /* Nx */
223: { ARGSFL_DELIM, NULL }, /* Ox */
224: { ARGSFL_DELIM, NULL }, /* Pc */
225: { ARGSFL_DELIM, NULL }, /* Pf */
226: { ARGSFL_NONE, NULL }, /* Po */
227: { ARGSFL_DELIM, NULL }, /* Pq */
228: { ARGSFL_DELIM, NULL }, /* Qc */
229: { ARGSFL_DELIM, NULL }, /* Ql */
230: { ARGSFL_NONE, NULL }, /* Qo */
231: { ARGSFL_DELIM, NULL }, /* Qq */
232: { ARGSFL_NONE, NULL }, /* Re */
233: { ARGSFL_NONE, NULL }, /* Rs */
234: { ARGSFL_DELIM, NULL }, /* Sc */
235: { ARGSFL_NONE, NULL }, /* So */
236: { ARGSFL_DELIM, NULL }, /* Sq */
237: { ARGSFL_NONE, NULL }, /* Sm */
238: { ARGSFL_DELIM, NULL }, /* Sx */
239: { ARGSFL_DELIM, NULL }, /* Sy */
240: { ARGSFL_DELIM, NULL }, /* Tn */
241: { ARGSFL_DELIM, NULL }, /* Ux */
242: { ARGSFL_DELIM, NULL }, /* Xc */
243: { ARGSFL_NONE, NULL }, /* Xo */
1.92 schwarze 244: { ARGSFL_NONE, NULL }, /* Fo */
245: { ARGSFL_DELIM, NULL }, /* Fc */
1.78 kristaps 246: { ARGSFL_NONE, NULL }, /* Oo */
247: { ARGSFL_DELIM, NULL }, /* Oc */
248: { ARGSFL_NONE, args_Bk }, /* Bk */
249: { ARGSFL_NONE, NULL }, /* Ek */
250: { ARGSFL_NONE, NULL }, /* Bt */
251: { ARGSFL_NONE, NULL }, /* Hf */
1.94 schwarze 252: { ARGSFL_DELIM, NULL }, /* Fr */
1.78 kristaps 253: { ARGSFL_NONE, NULL }, /* Ud */
1.86 schwarze 254: { ARGSFL_DELIM, NULL }, /* Lb */
1.78 kristaps 255: { ARGSFL_NONE, NULL }, /* Lp */
256: { ARGSFL_DELIM, NULL }, /* Lk */
257: { ARGSFL_DELIM, NULL }, /* Mt */
258: { ARGSFL_DELIM, NULL }, /* Brq */
259: { ARGSFL_NONE, NULL }, /* Bro */
260: { ARGSFL_DELIM, NULL }, /* Brc */
261: { ARGSFL_NONE, NULL }, /* %C */
262: { ARGSFL_NONE, NULL }, /* Es */
1.94 schwarze 263: { ARGSFL_DELIM, NULL }, /* En */
1.88 schwarze 264: { ARGSFL_DELIM, NULL }, /* Dx */
1.78 kristaps 265: { ARGSFL_NONE, NULL }, /* %Q */
266: { ARGSFL_NONE, NULL }, /* br */
267: { ARGSFL_NONE, NULL }, /* sp */
268: { ARGSFL_NONE, NULL }, /* %U */
269: { ARGSFL_NONE, NULL }, /* Ta */
1.91 schwarze 270: { ARGSFL_NONE, NULL }, /* ll */
1.78 kristaps 271: };
272:
273:
1.1 kristaps 274: /*
1.98 schwarze 275: * Parse flags and their arguments from the input line.
276: * These come in the form -flag [argument ...].
277: * Some flags take no argument, some one, some multiple.
1.1 kristaps 278: */
1.98 schwarze 279: void
1.103 schwarze 280: mdoc_argv(struct roff_man *mdoc, int line, int tok,
1.98 schwarze 281: struct mdoc_arg **reta, int *pos, char *buf)
1.1 kristaps 282: {
1.98 schwarze 283: struct mdoc_argv tmpv;
284: struct mdoc_argv **retv;
285: const enum mdocargt *argtable;
286: char *argname;
287: int ipos, retc;
288: char savechar;
1.1 kristaps 289:
1.98 schwarze 290: *reta = NULL;
1.1 kristaps 291:
1.98 schwarze 292: /* Which flags does this macro support? */
1.1 kristaps 293:
1.98 schwarze 294: argtable = mdocargs[tok].argvs;
295: if (argtable == NULL)
296: return;
1.1 kristaps 297:
1.98 schwarze 298: /* Loop over the flags on the input line. */
299:
300: ipos = *pos;
301: while (buf[ipos] == '-') {
302:
303: /* Seek to the first unescaped space. */
1.1 kristaps 304:
1.98 schwarze 305: for (argname = buf + ++ipos; buf[ipos] != '\0'; ipos++)
306: if (buf[ipos] == ' ' && buf[ipos - 1] != '\\')
307: break;
1.1 kristaps 308:
1.98 schwarze 309: /*
310: * We want to nil-terminate the word to look it up.
311: * But we may not have a flag, in which case we need
312: * to restore the line as-is. So keep around the
313: * stray byte, which we'll reset upon exiting.
314: */
315:
316: if ((savechar = buf[ipos]) != '\0')
317: buf[ipos++] = '\0';
1.1 kristaps 318:
1.92 schwarze 319: /*
1.98 schwarze 320: * Now look up the word as a flag. Use temporary
321: * storage that we'll copy into the node's flags.
1.78 kristaps 322: */
1.1 kristaps 323:
1.98 schwarze 324: while ((tmpv.arg = *argtable++) != MDOC_ARG_MAX)
325: if ( ! strcmp(argname, mdoc_argnames[tmpv.arg]))
326: break;
327:
328: /* If it isn't a flag, restore the saved byte. */
329:
330: if (tmpv.arg == MDOC_ARG_MAX) {
331: if (savechar != '\0')
332: buf[ipos - 1] = savechar;
333: break;
334: }
335:
336: /* Read to the next word (the first argument). */
337:
338: while (buf[ipos] == ' ')
339: ipos++;
340:
341: /* Parse the arguments of the flag. */
1.78 kristaps 342:
1.98 schwarze 343: tmpv.line = line;
1.100 schwarze 344: tmpv.pos = *pos;
1.98 schwarze 345: tmpv.sz = 0;
346: tmpv.value = NULL;
1.1 kristaps 347:
1.98 schwarze 348: switch (argvflags[tmpv.arg]) {
349: case ARGV_SINGLE:
350: argv_single(mdoc, line, &tmpv, &ipos, buf);
351: break;
352: case ARGV_MULTI:
353: argv_multi(mdoc, line, &tmpv, &ipos, buf);
354: break;
355: case ARGV_NONE:
356: break;
357: }
358:
359: /* Append to the return values. */
1.1 kristaps 360:
1.98 schwarze 361: if (*reta == NULL)
362: *reta = mandoc_calloc(1, sizeof(**reta));
1.1 kristaps 363:
1.98 schwarze 364: retc = ++(*reta)->argc;
365: retv = &(*reta)->argv;
366: *retv = mandoc_reallocarray(*retv, retc, sizeof(**retv));
367: memcpy(*retv + retc - 1, &tmpv, sizeof(**retv));
1.2 kristaps 368:
1.98 schwarze 369: /* Prepare for parsing the next flag. */
1.1 kristaps 370:
1.98 schwarze 371: *pos = ipos;
372: argtable = mdocargs[tok].argvs;
373: }
1.1 kristaps 374: }
375:
376: void
377: mdoc_argv_free(struct mdoc_arg *p)
378: {
1.37 kristaps 379: int i;
1.1 kristaps 380:
381: if (NULL == p)
382: return;
383:
384: if (p->refcnt) {
385: --(p->refcnt);
386: if (p->refcnt)
387: return;
388: }
389: assert(p->argc);
390:
1.37 kristaps 391: for (i = (int)p->argc - 1; i >= 0; i--)
1.71 kristaps 392: argn_free(p, i);
1.37 kristaps 393:
394: free(p->argv);
395: free(p);
396: }
397:
1.71 kristaps 398: static void
399: argn_free(struct mdoc_arg *p, int iarg)
1.37 kristaps 400: {
1.58 kristaps 401: struct mdoc_argv *arg;
1.37 kristaps 402: int j;
1.58 kristaps 403:
404: arg = &p->argv[iarg];
1.1 kristaps 405:
1.37 kristaps 406: if (arg->sz && arg->value) {
1.92 schwarze 407: for (j = (int)arg->sz - 1; j >= 0; j--)
1.37 kristaps 408: free(arg->value[j]);
409: free(arg->value);
1.1 kristaps 410: }
411:
1.37 kristaps 412: for (--p->argc; iarg < (int)p->argc; iarg++)
413: p->argv[iarg] = p->argv[iarg+1];
1.1 kristaps 414: }
415:
1.39 kristaps 416: enum margserr
1.103 schwarze 417: mdoc_args(struct roff_man *mdoc, int line, int *pos,
1.102 schwarze 418: char *buf, int tok, char **v)
1.1 kristaps 419: {
1.102 schwarze 420: struct roff_node *n;
1.99 schwarze 421: char *v_local;
1.76 kristaps 422: enum argsflag fl;
1.1 kristaps 423:
1.99 schwarze 424: if (v == NULL)
425: v = &v_local;
1.104 schwarze 426: fl = tok == TOKEN_NONE ? ARGSFL_NONE : mdocargs[tok].flags;
1.17 kristaps 427:
1.51 kristaps 428: /*
429: * We know that we're in an `It', so it's reasonable to expect
430: * us to be sitting in a `Bl'. Someday this may not be the case
431: * (if we allow random `It's sitting out there), so provide a
432: * safe fall-back into the default behaviour.
433: */
434:
1.110 ! schwarze 435: if (tok == MDOC_It) {
! 436: for (n = mdoc->last; n != NULL; n = n->parent) {
! 437: if (n->tok != MDOC_Bl)
! 438: continue;
! 439: if (n->norm->Bl.type == LIST_column)
1.76 kristaps 440: fl = ARGSFL_TABSEP;
1.110 ! schwarze 441: break;
! 442: }
! 443: }
1.1 kristaps 444:
1.105 schwarze 445: return args(mdoc, line, pos, buf, fl, v);
1.1 kristaps 446: }
447:
1.39 kristaps 448: static enum margserr
1.103 schwarze 449: args(struct roff_man *mdoc, int line, int *pos,
1.76 kristaps 450: char *buf, enum argsflag fl, char **v)
1.1 kristaps 451: {
1.106 schwarze 452: char *p;
1.87 schwarze 453: int pairs;
1.1 kristaps 454:
1.106 schwarze 455: if (buf[*pos] == '\0') {
456: if (mdoc->flags & MDOC_PHRASELIT &&
1.107 schwarze 457: ! (mdoc->flags & MDOC_PHRASE)) {
1.95 schwarze 458: mandoc_msg(MANDOCERR_ARG_QUOTE,
459: mdoc->parse, line, *pos, NULL);
1.106 schwarze 460: mdoc->flags &= ~MDOC_PHRASELIT;
461: }
1.105 schwarze 462: return ARGS_EOLN;
1.46 kristaps 463: }
1.1 kristaps 464:
1.106 schwarze 465: *v = buf + *pos;
1.17 kristaps 466:
1.106 schwarze 467: if (fl == ARGSFL_DELIM && args_checkpunct(buf, *pos))
468: return ARGS_PUNCT;
1.1 kristaps 469:
1.17 kristaps 470: /*
1.106 schwarze 471: * Tabs in `It' lines in `Bl -column' can't be escaped.
472: * Phrases are reparsed for `Ta' and other macros later.
1.17 kristaps 473: */
1.1 kristaps 474:
1.106 schwarze 475: if (fl == ARGSFL_TABSEP) {
476: if ((p = strchr(*v, '\t')) != NULL) {
1.107 schwarze 477:
478: /*
479: * Words right before and right after
480: * tab characters are not parsed,
481: * unless there is a blank in between.
482: */
483:
1.109 schwarze 484: if (p > buf && p[-1] != ' ')
1.107 schwarze 485: mdoc->flags |= MDOC_PHRASEQL;
486: if (p[1] != ' ')
487: mdoc->flags |= MDOC_PHRASEQN;
488:
489: /*
490: * One or more blanks after a tab cause
491: * one leading blank in the next column.
492: * So skip all but one of them.
493: */
494:
1.106 schwarze 495: *pos += (int)(p - *v) + 1;
1.107 schwarze 496: while (buf[*pos] == ' ' && buf[*pos + 1] == ' ')
1.106 schwarze 497: (*pos)++;
1.107 schwarze 498:
499: /*
500: * A tab at the end of an input line
501: * switches to the next column.
502: */
503:
504: if (buf[*pos] == '\0' || buf[*pos + 1] == '\0')
505: mdoc->flags |= MDOC_PHRASEQN;
1.44 kristaps 506: } else {
1.106 schwarze 507: p = strchr(*v, '\0');
508: if (p[-1] == ' ')
509: mandoc_msg(MANDOCERR_SPACE_EOL,
510: mdoc->parse, line, *pos, NULL);
511: *pos += (int)(p - *v);
1.17 kristaps 512: }
513:
1.106 schwarze 514: /* Skip any trailing blank characters. */
515: while (p > *v && p[-1] == ' ' &&
516: (p - 1 == *v || p[-2] != '\\'))
517: p--;
518: *p = '\0';
1.1 kristaps 519:
1.107 schwarze 520: return ARGS_PHRASE;
1.89 schwarze 521: }
1.1 kristaps 522:
1.89 schwarze 523: /*
1.17 kristaps 524: * Process a quoted literal. A quote begins with a double-quote
525: * and ends with a double-quote NOT preceded by a double-quote.
1.89 schwarze 526: * NUL-terminate the literal in place.
1.87 schwarze 527: * Collapse pairs of quotes inside quoted literals.
1.17 kristaps 528: * Whitespace is NOT involved in literal termination.
529: */
1.1 kristaps 530:
1.107 schwarze 531: if (mdoc->flags & MDOC_PHRASELIT || buf[*pos] == '\"') {
532: if ( ! (mdoc->flags & MDOC_PHRASELIT))
1.46 kristaps 533: *v = &buf[++(*pos)];
534:
1.107 schwarze 535: if (mdoc->flags & MDOC_PHRASE)
1.85 schwarze 536: mdoc->flags |= MDOC_PHRASELIT;
1.1 kristaps 537:
1.87 schwarze 538: pairs = 0;
1.17 kristaps 539: for ( ; buf[*pos]; (*pos)++) {
1.87 schwarze 540: /* Move following text left after quoted quotes. */
541: if (pairs)
542: buf[*pos - pairs] = buf[*pos];
1.17 kristaps 543: if ('\"' != buf[*pos])
544: continue;
1.87 schwarze 545: /* Unquoted quotes end quoted args. */
1.17 kristaps 546: if ('\"' != buf[*pos + 1])
547: break;
1.87 schwarze 548: /* Quoted quotes collapse. */
549: pairs++;
1.17 kristaps 550: (*pos)++;
551: }
1.87 schwarze 552: if (pairs)
553: buf[*pos - pairs] = '\0';
1.1 kristaps 554:
1.107 schwarze 555: if (buf[*pos] == '\0') {
556: if ( ! (mdoc->flags & MDOC_PHRASE))
557: mandoc_msg(MANDOCERR_ARG_QUOTE,
558: mdoc->parse, line, *pos, NULL);
1.105 schwarze 559: return ARGS_QWORD;
1.17 kristaps 560: }
1.1 kristaps 561:
1.85 schwarze 562: mdoc->flags &= ~MDOC_PHRASELIT;
1.46 kristaps 563: buf[(*pos)++] = '\0';
1.1 kristaps 564:
1.46 kristaps 565: if ('\0' == buf[*pos])
1.105 schwarze 566: return ARGS_QWORD;
1.1 kristaps 567:
1.17 kristaps 568: while (' ' == buf[*pos])
569: (*pos)++;
1.1 kristaps 570:
1.76 kristaps 571: if ('\0' == buf[*pos])
1.95 schwarze 572: mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
573: line, *pos, NULL);
1.1 kristaps 574:
1.105 schwarze 575: return ARGS_QWORD;
1.1 kristaps 576: }
577:
1.75 kristaps 578: p = &buf[*pos];
1.85 schwarze 579: *v = mandoc_getarg(mdoc->parse, &p, line, pos);
1.1 kristaps 580:
1.107 schwarze 581: /*
582: * After parsing the last word in this phrase,
583: * tell lookup() whether or not to interpret it.
584: */
585:
586: if (*p == '\0' && mdoc->flags & MDOC_PHRASEQL) {
587: mdoc->flags &= ~MDOC_PHRASEQL;
588: mdoc->flags |= MDOC_PHRASEQF;
589: }
1.105 schwarze 590: return ARGS_WORD;
1.64 kristaps 591: }
592:
1.92 schwarze 593: /*
1.64 kristaps 594: * Check if the string consists only of space-separated closing
1.65 kristaps 595: * delimiters. This is a bit of a dance: the first must be a close
596: * delimiter, but it may be followed by middle delimiters. Arbitrary
597: * whitespace may separate these tokens.
1.64 kristaps 598: */
599: static int
1.77 kristaps 600: args_checkpunct(const char *buf, int i)
1.64 kristaps 601: {
1.69 kristaps 602: int j;
603: char dbuf[DELIMSZ];
1.64 kristaps 604: enum mdelim d;
605:
1.65 kristaps 606: /* First token must be a close-delimiter. */
607:
1.69 kristaps 608: for (j = 0; buf[i] && ' ' != buf[i] && j < DELIMSZ; j++, i++)
609: dbuf[j] = buf[i];
1.65 kristaps 610:
611: if (DELIMSZ == j)
1.105 schwarze 612: return 0;
1.65 kristaps 613:
1.69 kristaps 614: dbuf[j] = '\0';
1.70 kristaps 615: if (DELIM_CLOSE != mdoc_isdelim(dbuf))
1.105 schwarze 616: return 0;
1.64 kristaps 617:
1.69 kristaps 618: while (' ' == buf[i])
1.65 kristaps 619: i++;
620:
621: /* Remaining must NOT be open/none. */
1.92 schwarze 622:
1.69 kristaps 623: while (buf[i]) {
1.65 kristaps 624: j = 0;
1.69 kristaps 625: while (buf[i] && ' ' != buf[i] && j < DELIMSZ)
626: dbuf[j++] = buf[i++];
1.65 kristaps 627:
628: if (DELIMSZ == j)
1.105 schwarze 629: return 0;
1.65 kristaps 630:
1.69 kristaps 631: dbuf[j] = '\0';
1.70 kristaps 632: d = mdoc_isdelim(dbuf);
1.64 kristaps 633: if (DELIM_NONE == d || DELIM_OPEN == d)
1.105 schwarze 634: return 0;
1.65 kristaps 635:
1.69 kristaps 636: while (' ' == buf[i])
1.64 kristaps 637: i++;
638: }
1.69 kristaps 639:
1.105 schwarze 640: return '\0' == buf[i];
1.1 kristaps 641: }
642:
1.97 schwarze 643: static void
1.103 schwarze 644: argv_multi(struct roff_man *mdoc, int line,
1.1 kristaps 645: struct mdoc_argv *v, int *pos, char *buf)
646: {
1.43 kristaps 647: enum margserr ac;
1.1 kristaps 648: char *p;
649:
650: for (v->sz = 0; ; v->sz++) {
1.97 schwarze 651: if (buf[*pos] == '-')
1.1 kristaps 652: break;
1.85 schwarze 653: ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
1.97 schwarze 654: if (ac == ARGS_EOLN)
1.1 kristaps 655: break;
656:
1.97 schwarze 657: if (v->sz % MULTI_STEP == 0)
1.93 schwarze 658: v->value = mandoc_reallocarray(v->value,
659: v->sz + MULTI_STEP, sizeof(char *));
1.31 kristaps 660:
661: v->value[(int)v->sz] = mandoc_strdup(p);
1.1 kristaps 662: }
663: }
664:
1.97 schwarze 665: static void
1.103 schwarze 666: argv_single(struct roff_man *mdoc, int line,
1.1 kristaps 667: struct mdoc_argv *v, int *pos, char *buf)
668: {
1.43 kristaps 669: enum margserr ac;
1.1 kristaps 670: char *p;
671:
1.85 schwarze 672: ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
1.97 schwarze 673: if (ac == ARGS_EOLN)
674: return;
1.1 kristaps 675:
676: v->sz = 1;
1.31 kristaps 677: v->value = mandoc_malloc(sizeof(char *));
678: v->value[0] = mandoc_strdup(p);
1.1 kristaps 679: }
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