/* $Id$ */
/*
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include <assert.h>
#include <ctype.h>
#include <err.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "private.h"
static int lookup(int, const char *);
static int parse(struct mdoc *, int,
struct mdoc_arg *, int *, char *);
static int postparse(struct mdoc *, int,
const struct mdoc_arg *, int);
int
mdoc_args(struct mdoc *mdoc, int tok, int *pos, char *buf, int fl, char **v)
{
int i;
if (0 == buf[*pos])
return(ARGS_EOLN);
if ('\"' == buf[*pos] && ! (fl & ARGS_QUOTED))
if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_QUOTED))
return(ARGS_ERROR);
if ('-' == buf[*pos])
if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_ARGLIKE))
return(ARGS_ERROR);
if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos])) {
for (i = *pos; buf[i]; ) {
if ( ! mdoc_iscdelim(buf[i]))
break;
i++;
if (0 == buf[i] || ! isspace(buf[i]))
break;
i++;
while (buf[i] && isspace(buf[i]))
i++;
}
if (0 == buf[i]) {
*v = &buf[*pos];
return(ARGS_PUNCT);
}
}
/*
* Parse routine for non-quoted string.
*/
if ('\"' != buf[*pos]) {
*v = &buf[*pos];
while (buf[*pos] && ! isspace(buf[*pos]))
(*pos)++;
if (0 == buf[*pos])
return(ARGS_WORD);
buf[(*pos)++] = 0;
if (0 == buf[*pos])
return(ARGS_WORD);
while (buf[*pos] && isspace(buf[*pos]))
(*pos)++;
if (buf[*pos])
return(ARGS_WORD);
if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_WS_EOLN))
return(ARGS_ERROR);
return(ARGS_WORD);
}
/*
* If we're a quoted string (and quoted strings are allowed),
* then parse ahead to the next quote. If none's found, it's an
* error. After, parse to the next word.
*/
*v = &buf[++(*pos)];
while (buf[*pos] && '\"' != buf[*pos])
(*pos)++;
if (0 == buf[*pos]) {
(void)mdoc_err(mdoc, tok, *pos, ERR_SYNTAX_UNQUOTE);
return(ARGS_ERROR);
}
buf[(*pos)++] = 0;
if (0 == buf[*pos])
return(ARGS_WORD);
while (buf[*pos] && isspace(buf[*pos]))
(*pos)++;
if (buf[*pos])
return(ARGS_WORD);
if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_WS_EOLN))
return(ARGS_ERROR);
return(ARGS_WORD);
}
static int
lookup(int tok, const char *argv)
{
switch (tok) {
case (MDOC_Bf):
if (xstrcmp(argv, "emphasis"))
return(MDOC_Emphasis);
else if (xstrcmp(argv, "literal"))
return(MDOC_Literal);
else if (xstrcmp(argv, "symbolic"))
return(MDOC_Symbolic);
break;
case (MDOC_An):
if (xstrcmp(argv, "split"))
return(MDOC_Split);
else if (xstrcmp(argv, "nosplit"))
return(MDOC_Nosplit);
break;
case (MDOC_Bd):
if (xstrcmp(argv, "ragged"))
return(MDOC_Ragged);
else if (xstrcmp(argv, "unfilled"))
return(MDOC_Unfilled);
else if (xstrcmp(argv, "literal"))
return(MDOC_Literal);
else if (xstrcmp(argv, "file"))
return(MDOC_File);
else if (xstrcmp(argv, "offset"))
return(MDOC_Offset);
break;
case (MDOC_Bl):
if (xstrcmp(argv, "bullet"))
return(MDOC_Bullet);
else if (xstrcmp(argv, "dash"))
return(MDOC_Dash);
else if (xstrcmp(argv, "hyphen"))
return(MDOC_Hyphen);
else if (xstrcmp(argv, "item"))
return(MDOC_Item);
else if (xstrcmp(argv, "enum"))
return(MDOC_Enum);
else if (xstrcmp(argv, "tag"))
return(MDOC_Tag);
else if (xstrcmp(argv, "diag"))
return(MDOC_Diag);
else if (xstrcmp(argv, "hang"))
return(MDOC_Hang);
else if (xstrcmp(argv, "ohang"))
return(MDOC_Ohang);
else if (xstrcmp(argv, "inset"))
return(MDOC_Inset);
else if (xstrcmp(argv, "column"))
return(MDOC_Column);
else if (xstrcmp(argv, "width"))
return(MDOC_Width);
else if (xstrcmp(argv, "offset"))
return(MDOC_Offset);
else if (xstrcmp(argv, "compact"))
return(MDOC_Compact);
break;
case (MDOC_Rv):
/* FALLTHROUGH */
case (MDOC_Ex):
if (xstrcmp(argv, "std"))
return(MDOC_Std);
break;
case (MDOC_St):
if (xstrcmp(argv, "p1003.1-88"))
return(MDOC_p1003_1_88);
else if (xstrcmp(argv, "p1003.1-90"))
return(MDOC_p1003_1_90);
else if (xstrcmp(argv, "p1003.1-96"))
return(MDOC_p1003_1_96);
else if (xstrcmp(argv, "p1003.1-2001"))
return(MDOC_p1003_1_2001);
else if (xstrcmp(argv, "p1003.1-2004"))
return(MDOC_p1003_1_2004);
else if (xstrcmp(argv, "p1003.1"))
return(MDOC_p1003_1);
else if (xstrcmp(argv, "p1003.1b"))
return(MDOC_p1003_1b);
else if (xstrcmp(argv, "p1003.1b-93"))
return(MDOC_p1003_1b_93);
else if (xstrcmp(argv, "p1003.1c-95"))
return(MDOC_p1003_1c_95);
else if (xstrcmp(argv, "p1003.1g-2000"))
return(MDOC_p1003_1g_2000);
else if (xstrcmp(argv, "p1003.2-92"))
return(MDOC_p1003_2_92);
else if (xstrcmp(argv, "p1003.2-95"))
return(MDOC_p1387_2_95);
else if (xstrcmp(argv, "p1003.2"))
return(MDOC_p1003_2);
else if (xstrcmp(argv, "p1387.2-95"))
return(MDOC_p1387_2);
else if (xstrcmp(argv, "isoC-90"))
return(MDOC_isoC_90);
else if (xstrcmp(argv, "isoC-amd1"))
return(MDOC_isoC_amd1);
else if (xstrcmp(argv, "isoC-tcor1"))
return(MDOC_isoC_tcor1);
else if (xstrcmp(argv, "isoC-tcor2"))
return(MDOC_isoC_tcor2);
else if (xstrcmp(argv, "isoC-99"))
return(MDOC_isoC_99);
else if (xstrcmp(argv, "ansiC"))
return(MDOC_ansiC);
else if (xstrcmp(argv, "ansiC-89"))
return(MDOC_ansiC_89);
else if (xstrcmp(argv, "ansiC-99"))
return(MDOC_ansiC_99);
else if (xstrcmp(argv, "ieee754"))
return(MDOC_ieee754);
else if (xstrcmp(argv, "iso8802-3"))
return(MDOC_iso8802_3);
else if (xstrcmp(argv, "xpg3"))
return(MDOC_xpg3);
else if (xstrcmp(argv, "xpg4"))
return(MDOC_xpg4);
else if (xstrcmp(argv, "xpg4.2"))
return(MDOC_xpg4_2);
else if (xstrcmp(argv, "xpg4.3"))
return(MDOC_xpg4_3);
else if (xstrcmp(argv, "xbd5"))
return(MDOC_xbd5);
else if (xstrcmp(argv, "xcu5"))
return(MDOC_xcu5);
else if (xstrcmp(argv, "xsh5"))
return(MDOC_xsh5);
else if (xstrcmp(argv, "xns5"))
return(MDOC_xns5);
else if (xstrcmp(argv, "xns5.2d2.0"))
return(MDOC_xns5_2d2_0);
else if (xstrcmp(argv, "xcurses4.2"))
return(MDOC_xcurses4_2);
else if (xstrcmp(argv, "susv2"))
return(MDOC_susv2);
else if (xstrcmp(argv, "susv3"))
return(MDOC_susv3);
else if (xstrcmp(argv, "svid4"))
return(MDOC_svid4);
break;
default:
abort();
/* NOTREACHED */
}
return(MDOC_ARG_MAX);
}
static int
postparse(struct mdoc *mdoc, int tok, const struct mdoc_arg *v, int pos)
{
switch (v->arg) {
case (MDOC_Offset):
assert(v->value);
assert(v->value[0]);
if (xstrcmp(v->value[0], "left"))
break;
if (xstrcmp(v->value[0], "right"))
break;
if (xstrcmp(v->value[0], "center"))
break;
if (xstrcmp(v->value[0], "indent"))
break;
if (xstrcmp(v->value[0], "indent-two"))
break;
return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_ARGBAD));
default:
break;
}
return(1);
}
static int
parse(struct mdoc *mdoc, int tok,
struct mdoc_arg *v, int *pos, char *buf)
{
char *p;
int c, ppos, i;
ppos = *pos;
switch (v->arg) {
case(MDOC_Std):
/* FALLTHROUGH */
case(MDOC_Width):
/* FALLTHROUGH */
case(MDOC_Offset):
/*
* This has a single value for an argument.
*/
c = mdoc_args(mdoc, tok, pos, buf, ARGS_QUOTED, &p);
if (ARGS_ERROR == c)
return(0);
else if (ARGS_EOLN == c)
return(mdoc_err(mdoc, tok, ppos, ERR_SYNTAX_ARGVAL));
v->sz = 1;
v->value = xcalloc(1, sizeof(char *));
v->value[0] = p;
break;
case(MDOC_Column):
/*
* This has several value for a single argument. We
* pre-allocate a pointer array and don't let it exceed
* this size.
*/
v->sz = 0;
v->value = xcalloc(MDOC_LINEARG_MAX, sizeof(char *));
for (i = 0; i < MDOC_LINEARG_MAX; i++) {
c = mdoc_args(mdoc, tok, pos, buf, ARGS_QUOTED, &p);
if (ARGS_ERROR == c) {
free(v->value);
return(0);
} else if (ARGS_EOLN == c)
break;
v->value[i] = p;
}
if (0 == i) {
free(v->value);
return(mdoc_err(mdoc, tok, ppos, ERR_SYNTAX_ARGVAL));
} else if (MDOC_LINEARG_MAX == i)
return(mdoc_err(mdoc, tok, ppos, ERR_SYNTAX_ARGMANY));
v->sz = i;
break;
default:
v->sz = 0;
v->value = NULL;
break;
}
return(1);
}
int
mdoc_argv(struct mdoc *mdoc, int tok,
struct mdoc_arg *v, int *pos, char *buf)
{
int i, ppos;
char *argv;
(void)memset(v, 0, sizeof(struct mdoc_arg));
if (0 == buf[*pos])
return(ARGV_EOLN);
assert( ! isspace(buf[*pos]));
if ('-' != buf[*pos])
return(ARGV_WORD);
i = *pos;
argv = &buf[++(*pos)];
while (buf[*pos] && ! isspace(buf[*pos]))
(*pos)++;
if (buf[*pos])
buf[(*pos)++] = 0;
if (MDOC_ARG_MAX == (v->arg = lookup(tok, argv))) {
(void)mdoc_err(mdoc, tok, i, ERR_SYNTAX_ARG);
return(ARGV_ERROR);
}
while (buf[*pos] && isspace(buf[*pos]))
(*pos)++;
/* FIXME: whitespace if no value. */
ppos = *pos;
if ( ! parse(mdoc, tok, v, pos, buf))
return(ARGV_ERROR);
if ( ! postparse(mdoc, tok, v, ppos))
return(ARGV_ERROR);
return(ARGV_ARG);
}
void
mdoc_argv_free(int sz, struct mdoc_arg *arg)
{
int i;
for (i = 0; i < sz; i++) {
if (0 == arg[i].sz) {
assert(NULL == arg[i].value);
continue;
}
assert(arg[i].value);
free(arg[i].value);
}
}
