-/* $Id: mdoc_argv.c,v 1.78 2011/06/18 16:18:04 kristaps Exp $ */
+/* $Id: mdoc_argv.c,v 1.96 2014/08/10 23:54:41 schwarze Exp $ */
/*
- * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2012 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include <sys/types.h>
#include <assert.h>
-#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "mdoc.h"
#include "mandoc.h"
+#include "mandoc_aux.h"
#include "libmdoc.h"
#include "libmandoc.h"
#define MULTI_STEP 5 /* pre-allocate argument values */
-#define DELIMSZ 6 /* max possible size of a delimiter */
+#define DELIMSZ 6 /* max possible size of a delimiter */
enum argsflag {
ARGSFL_NONE = 0,
enum argvflag {
ARGV_NONE, /* no args to flag (e.g., -split) */
ARGV_SINGLE, /* one arg to flag (e.g., -file xxx) */
- ARGV_MULTI, /* multiple args (e.g., -column xxx yyy) */
- ARGV_OPT_SINGLE /* optional arg (e.g., -offset [xxx]) */
+ ARGV_MULTI /* multiple args (e.g., -column xxx yyy) */
};
struct mdocarg {
const enum mdocargt *argvs;
};
-static enum margserr args(struct mdoc *, int, int *,
+static void argn_free(struct mdoc_arg *, int);
+static enum margserr args(struct mdoc *, int, int *,
char *, enum argsflag, char **);
static int args_checkpunct(const char *, int);
-static int argv(struct mdoc *, int,
- struct mdoc_argv *, int *, char *);
-static int argv_single(struct mdoc *, int,
+static int argv_multi(struct mdoc *, int,
struct mdoc_argv *, int *, char *);
-static int argv_opt_single(struct mdoc *, int,
+static int argv_single(struct mdoc *, int,
struct mdoc_argv *, int *, char *);
-static int argv_multi(struct mdoc *, int,
- struct mdoc_argv *, int *, char *);
-static void argn_free(struct mdoc_arg *, int);
static const enum argvflag argvflags[MDOC_ARG_MAX] = {
ARGV_NONE, /* MDOC_Split */
ARGV_NONE, /* MDOC_Unfilled */
ARGV_NONE, /* MDOC_Literal */
ARGV_SINGLE, /* MDOC_File */
- ARGV_OPT_SINGLE, /* MDOC_Offset */
+ ARGV_SINGLE, /* MDOC_Offset */
ARGV_NONE, /* MDOC_Bullet */
ARGV_NONE, /* MDOC_Dash */
ARGV_NONE, /* MDOC_Hyphen */
};
static const struct mdocarg mdocargs[MDOC_MAX] = {
- { ARGSFL_NONE, NULL }, /* Ap */
+ { ARGSFL_DELIM, NULL }, /* Ap */
{ ARGSFL_NONE, NULL }, /* Dd */
{ ARGSFL_NONE, NULL }, /* Dt */
{ ARGSFL_NONE, NULL }, /* Os */
{ ARGSFL_NONE, NULL }, /* Sh */
- { ARGSFL_NONE, NULL }, /* Ss */
- { ARGSFL_NONE, NULL }, /* Pp */
+ { ARGSFL_NONE, NULL }, /* Ss */
+ { ARGSFL_NONE, NULL }, /* Pp */
{ ARGSFL_DELIM, NULL }, /* D1 */
{ ARGSFL_DELIM, NULL }, /* Dl */
{ ARGSFL_NONE, args_Bd }, /* Bd */
{ ARGSFL_NONE, args_Bl }, /* Bl */
{ ARGSFL_NONE, NULL }, /* El */
{ ARGSFL_NONE, NULL }, /* It */
- { ARGSFL_DELIM, NULL }, /* Ad */
+ { ARGSFL_DELIM, NULL }, /* Ad */
{ ARGSFL_DELIM, args_An }, /* An */
{ ARGSFL_DELIM, NULL }, /* Ar */
- { ARGSFL_NONE, NULL }, /* Cd */
+ { ARGSFL_DELIM, NULL }, /* Cd */
{ ARGSFL_DELIM, NULL }, /* Cm */
- { ARGSFL_DELIM, NULL }, /* Dv */
- { ARGSFL_DELIM, NULL }, /* Er */
- { ARGSFL_DELIM, NULL }, /* Ev */
+ { ARGSFL_DELIM, NULL }, /* Dv */
+ { ARGSFL_DELIM, NULL }, /* Er */
+ { ARGSFL_DELIM, NULL }, /* Ev */
{ ARGSFL_NONE, args_Ex }, /* Ex */
- { ARGSFL_DELIM, NULL }, /* Fa */
- { ARGSFL_NONE, NULL }, /* Fd */
+ { ARGSFL_DELIM, NULL }, /* Fa */
+ { ARGSFL_NONE, NULL }, /* Fd */
{ ARGSFL_DELIM, NULL }, /* Fl */
- { ARGSFL_DELIM, NULL }, /* Fn */
- { ARGSFL_DELIM, NULL }, /* Ft */
- { ARGSFL_DELIM, NULL }, /* Ic */
- { ARGSFL_NONE, NULL }, /* In */
+ { ARGSFL_DELIM, NULL }, /* Fn */
+ { ARGSFL_DELIM, NULL }, /* Ft */
+ { ARGSFL_DELIM, NULL }, /* Ic */
+ { ARGSFL_DELIM, NULL }, /* In */
{ ARGSFL_DELIM, NULL }, /* Li */
- { ARGSFL_NONE, NULL }, /* Nd */
- { ARGSFL_DELIM, NULL }, /* Nm */
+ { ARGSFL_NONE, NULL }, /* Nd */
+ { ARGSFL_DELIM, NULL }, /* Nm */
{ ARGSFL_DELIM, NULL }, /* Op */
- { ARGSFL_NONE, NULL }, /* Ot */
+ { ARGSFL_DELIM, NULL }, /* Ot */
{ ARGSFL_DELIM, NULL }, /* Pa */
{ ARGSFL_NONE, args_Ex }, /* Rv */
- { ARGSFL_DELIM, NULL }, /* St */
+ { ARGSFL_DELIM, NULL }, /* St */
{ ARGSFL_DELIM, NULL }, /* Va */
- { ARGSFL_DELIM, NULL }, /* Vt */
+ { ARGSFL_DELIM, NULL }, /* Vt */
{ ARGSFL_DELIM, NULL }, /* Xr */
{ ARGSFL_NONE, NULL }, /* %A */
{ ARGSFL_NONE, NULL }, /* %B */
{ ARGSFL_DELIM, NULL }, /* Aq */
{ ARGSFL_DELIM, NULL }, /* At */
{ ARGSFL_DELIM, NULL }, /* Bc */
- { ARGSFL_NONE, args_Bf }, /* Bf */
+ { ARGSFL_NONE, args_Bf }, /* Bf */
{ ARGSFL_NONE, NULL }, /* Bo */
{ ARGSFL_DELIM, NULL }, /* Bq */
{ ARGSFL_DELIM, NULL }, /* Bsx */
{ ARGSFL_DELIM, NULL }, /* Dq */
{ ARGSFL_DELIM, NULL }, /* Ec */
{ ARGSFL_NONE, NULL }, /* Ef */
- { ARGSFL_DELIM, NULL }, /* Em */
+ { ARGSFL_DELIM, NULL }, /* Em */
{ ARGSFL_NONE, NULL }, /* Eo */
{ ARGSFL_DELIM, NULL }, /* Fx */
{ ARGSFL_DELIM, NULL }, /* Ms */
{ ARGSFL_DELIM, NULL }, /* Ux */
{ ARGSFL_DELIM, NULL }, /* Xc */
{ ARGSFL_NONE, NULL }, /* Xo */
- { ARGSFL_NONE, NULL }, /* Fo */
- { ARGSFL_NONE, NULL }, /* Fc */
+ { ARGSFL_NONE, NULL }, /* Fo */
+ { ARGSFL_DELIM, NULL }, /* Fc */
{ ARGSFL_NONE, NULL }, /* Oo */
{ ARGSFL_DELIM, NULL }, /* Oc */
{ ARGSFL_NONE, args_Bk }, /* Bk */
{ ARGSFL_NONE, NULL }, /* Ek */
{ ARGSFL_NONE, NULL }, /* Bt */
{ ARGSFL_NONE, NULL }, /* Hf */
- { ARGSFL_NONE, NULL }, /* Fr */
+ { ARGSFL_DELIM, NULL }, /* Fr */
{ ARGSFL_NONE, NULL }, /* Ud */
- { ARGSFL_NONE, NULL }, /* Lb */
+ { ARGSFL_DELIM, NULL }, /* Lb */
{ ARGSFL_NONE, NULL }, /* Lp */
{ ARGSFL_DELIM, NULL }, /* Lk */
{ ARGSFL_DELIM, NULL }, /* Mt */
{ ARGSFL_DELIM, NULL }, /* Brc */
{ ARGSFL_NONE, NULL }, /* %C */
{ ARGSFL_NONE, NULL }, /* Es */
- { ARGSFL_NONE, NULL }, /* En */
- { ARGSFL_NONE, NULL }, /* Dx */
+ { ARGSFL_DELIM, NULL }, /* En */
+ { ARGSFL_DELIM, NULL }, /* Dx */
{ ARGSFL_NONE, NULL }, /* %Q */
{ ARGSFL_NONE, NULL }, /* br */
{ ARGSFL_NONE, NULL }, /* sp */
{ ARGSFL_NONE, NULL }, /* %U */
{ ARGSFL_NONE, NULL }, /* Ta */
+ { ARGSFL_NONE, NULL }, /* ll */
};
* one mandatory value, an optional single value, or no value.
*/
enum margverr
-mdoc_argv(struct mdoc *m, int line, enum mdoct tok,
+mdoc_argv(struct mdoc *mdoc, int line, enum mdoct tok,
struct mdoc_arg **v, int *pos, char *buf)
{
char *p, sv;
return(ARGV_EOLN);
else if (NULL == (ap = mdocargs[tok].argvs))
return(ARGV_WORD);
-
- assert(' ' != buf[*pos]);
+ else if ('-' != buf[*pos])
+ return(ARGV_WORD);
/* Seek to the first unescaped space. */
if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
break;
- /*
+ /*
* We want to nil-terminate the word to look it up (it's easier
* that way). But we may not have a flag, in which case we need
* to restore the line as-is. So keep around the stray byte,
* which we'll reset upon exiting (if necessary).
*/
- if ('\0' != (sv = buf[*pos]))
+ if ('\0' != (sv = buf[*pos]))
buf[(*pos)++] = '\0';
/*
break;
if (MDOC_ARG_MAX == tmp.arg) {
- /*
+ /*
* The flag was not found.
* Restore saved zeroed byte and return as a word.
*/
while (buf[*pos] && ' ' == buf[*pos])
(*pos)++;
- if ( ! argv(m, line, &tmp, pos, buf))
- return(ARGV_ERROR);
+ switch (argvflags[tmp.arg]) {
+ case ARGV_SINGLE:
+ if ( ! argv_single(mdoc, line, &tmp, pos, buf))
+ return(ARGV_ERROR);
+ break;
+ case ARGV_MULTI:
+ if ( ! argv_multi(mdoc, line, &tmp, pos, buf))
+ return(ARGV_ERROR);
+ break;
+ case ARGV_NONE:
+ break;
+ }
if (NULL == (arg = *v))
arg = *v = mandoc_calloc(1, sizeof(struct mdoc_arg));
arg->argc++;
- arg->argv = mandoc_realloc
- (arg->argv, arg->argc * sizeof(struct mdoc_argv));
+ arg->argv = mandoc_reallocarray(arg->argv,
+ arg->argc, sizeof(struct mdoc_argv));
- memcpy(&arg->argv[(int)arg->argc - 1],
- &tmp, sizeof(struct mdoc_argv));
+ memcpy(&arg->argv[(int)arg->argc - 1], &tmp,
+ sizeof(struct mdoc_argv));
return(ARGV_ARG);
}
arg = &p->argv[iarg];
if (arg->sz && arg->value) {
- for (j = (int)arg->sz - 1; j >= 0; j--)
+ for (j = (int)arg->sz - 1; j >= 0; j--)
free(arg->value[j]);
free(arg->value);
}
}
enum margserr
-mdoc_zargs(struct mdoc *m, int line, int *pos, char *buf, char **v)
+mdoc_zargs(struct mdoc *mdoc, int line, int *pos, char *buf, char **v)
{
- return(args(m, line, pos, buf, ARGSFL_NONE, v));
+ return(args(mdoc, line, pos, buf, ARGSFL_NONE, v));
}
enum margserr
-mdoc_args(struct mdoc *m, int line, int *pos,
+mdoc_args(struct mdoc *mdoc, int line, int *pos,
char *buf, enum mdoct tok, char **v)
{
enum argsflag fl;
fl = mdocargs[tok].flags;
if (MDOC_It != tok)
- return(args(m, line, pos, buf, fl, v));
+ return(args(mdoc, line, pos, buf, fl, v));
/*
* We know that we're in an `It', so it's reasonable to expect
* safe fall-back into the default behaviour.
*/
- for (n = m->last; n; n = n->parent)
+ for (n = mdoc->last; n; n = n->parent)
if (MDOC_Bl == n->tok)
if (LIST_column == n->norm->Bl.type) {
fl = ARGSFL_TABSEP;
break;
}
- return(args(m, line, pos, buf, fl, v));
+ return(args(mdoc, line, pos, buf, fl, v));
}
static enum margserr
-args(struct mdoc *m, int line, int *pos,
+args(struct mdoc *mdoc, int line, int *pos,
char *buf, enum argsflag fl, char **v)
{
char *p, *pp;
+ int pairs;
enum margserr rc;
if ('\0' == buf[*pos]) {
- if (MDOC_PPHRASE & m->flags)
+ if (MDOC_PPHRASE & mdoc->flags)
return(ARGS_EOLN);
/*
* If we're not in a partial phrase and the flag for
* being a phrase literal is still set, the punctuation
* is unterminated.
*/
- if (MDOC_PHRASELIT & m->flags)
- mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE);
+ if (MDOC_PHRASELIT & mdoc->flags)
+ mandoc_msg(MANDOCERR_ARG_QUOTE,
+ mdoc->parse, line, *pos, NULL);
- m->flags &= ~MDOC_PHRASELIT;
+ mdoc->flags &= ~MDOC_PHRASELIT;
return(ARGS_EOLN);
}
pp = NULL;
/* Scan ahead to unescaped `Ta'. */
- if ( ! (MDOC_PHRASELIT & m->flags))
+ if ( ! (MDOC_PHRASELIT & mdoc->flags))
for (pp = *v; ; pp++) {
if (NULL == (pp = strstr(pp, "Ta")))
break;
/* By default, assume a phrase. */
rc = ARGS_PHRASE;
- /*
+ /*
* Adjust new-buffer position to be beyond delimiter
* mark (e.g., Ta -> end + 2).
*/
/* Whitespace check for eoln case... */
if ('\0' == *p && ' ' == *(p - 1))
- mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE);
+ mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
+ line, *pos, NULL);
*pos += (int)(p - *v);
/* Skip ahead. */ ;
return(rc);
- }
+ }
- /*
+ /*
* Process a quoted literal. A quote begins with a double-quote
* and ends with a double-quote NOT preceded by a double-quote.
+ * NUL-terminate the literal in place.
+ * Collapse pairs of quotes inside quoted literals.
* Whitespace is NOT involved in literal termination.
*/
- if (MDOC_PHRASELIT & m->flags || '\"' == buf[*pos]) {
- if ( ! (MDOC_PHRASELIT & m->flags))
+ if (MDOC_PHRASELIT & mdoc->flags || '\"' == buf[*pos]) {
+ if ( ! (MDOC_PHRASELIT & mdoc->flags))
*v = &buf[++(*pos)];
- if (MDOC_PPHRASE & m->flags)
- m->flags |= MDOC_PHRASELIT;
+ if (MDOC_PPHRASE & mdoc->flags)
+ mdoc->flags |= MDOC_PHRASELIT;
+ pairs = 0;
for ( ; buf[*pos]; (*pos)++) {
+ /* Move following text left after quoted quotes. */
+ if (pairs)
+ buf[*pos - pairs] = buf[*pos];
if ('\"' != buf[*pos])
continue;
+ /* Unquoted quotes end quoted args. */
if ('\"' != buf[*pos + 1])
break;
+ /* Quoted quotes collapse. */
+ pairs++;
(*pos)++;
}
+ if (pairs)
+ buf[*pos - pairs] = '\0';
if ('\0' == buf[*pos]) {
- if (MDOC_PPHRASE & m->flags)
+ if (MDOC_PPHRASE & mdoc->flags)
return(ARGS_QWORD);
- mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE);
+ mandoc_msg(MANDOCERR_ARG_QUOTE,
+ mdoc->parse, line, *pos, NULL);
return(ARGS_QWORD);
}
- m->flags &= ~MDOC_PHRASELIT;
+ mdoc->flags &= ~MDOC_PHRASELIT;
buf[(*pos)++] = '\0';
if ('\0' == buf[*pos])
(*pos)++;
if ('\0' == buf[*pos])
- mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE);
+ mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
+ line, *pos, NULL);
return(ARGS_QWORD);
}
p = &buf[*pos];
- *v = mandoc_getarg(m->parse, &p, line, pos);
+ *v = mandoc_getarg(mdoc->parse, &p, line, pos);
return(ARGS_WORD);
}
-/*
+/*
* Check if the string consists only of space-separated closing
* delimiters. This is a bit of a dance: the first must be a close
* delimiter, but it may be followed by middle delimiters. Arbitrary
i++;
/* Remaining must NOT be open/none. */
-
+
while (buf[i]) {
j = 0;
while (buf[i] && ' ' != buf[i] && j < DELIMSZ)
}
static int
-argv_multi(struct mdoc *m, int line,
+argv_multi(struct mdoc *mdoc, int line,
struct mdoc_argv *v, int *pos, char *buf)
{
enum margserr ac;
for (v->sz = 0; ; v->sz++) {
if ('-' == buf[*pos])
break;
- ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
+ ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
if (ARGS_ERROR == ac)
return(0);
else if (ARGS_EOLN == ac)
break;
if (0 == v->sz % MULTI_STEP)
- v->value = mandoc_realloc(v->value,
- (v->sz + MULTI_STEP) * sizeof(char *));
+ v->value = mandoc_reallocarray(v->value,
+ v->sz + MULTI_STEP, sizeof(char *));
v->value[(int)v->sz] = mandoc_strdup(p);
}
}
static int
-argv_opt_single(struct mdoc *m, int line,
+argv_single(struct mdoc *mdoc, int line,
struct mdoc_argv *v, int *pos, char *buf)
{
enum margserr ac;
char *p;
- if ('-' == buf[*pos])
- return(1);
-
- ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
+ ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
if (ARGS_ERROR == ac)
return(0);
if (ARGS_EOLN == ac)
return(1);
}
-
-/*
- * Parse a single, mandatory value from the stream.
- */
-static int
-argv_single(struct mdoc *m, int line,
- struct mdoc_argv *v, int *pos, char *buf)
-{
- int ppos;
- enum margserr ac;
- char *p;
-
- ppos = *pos;
-
- ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
- if (ARGS_EOLN == ac) {
- mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTARGVCOUNT);
- return(0);
- } else if (ARGS_ERROR == ac)
- return(0);
-
- v->sz = 1;
- v->value = mandoc_malloc(sizeof(char *));
- v->value[0] = mandoc_strdup(p);
-
- return(1);
-}
-
-/*
- * Determine rules for parsing arguments. Arguments can either accept
- * no parameters, an optional single parameter, one parameter, or
- * multiple parameters.
- */
-static int
-argv(struct mdoc *mdoc, int line,
- struct mdoc_argv *v, int *pos, char *buf)
-{
-
- v->sz = 0;
- v->value = NULL;
-
- switch (argvflags[v->arg]) {
- case (ARGV_SINGLE):
- return(argv_single(mdoc, line, v, pos, buf));
- case (ARGV_MULTI):
- return(argv_multi(mdoc, line, v, pos, buf));
- case (ARGV_OPT_SINGLE):
- return(argv_opt_single(mdoc, line, v, pos, buf));
- case (ARGV_NONE):
- break;
- default:
- abort();
- /* NOTREACHED */
- }
-
- return(1);
-}
git.ckatri.com / mandoc.git / blobdiff