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/* $Id$ */
/*
* 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 parse_next(struct mdoc *, int,
int *, char *, char **);
static int
parse_next(struct mdoc *mdoc, int tok,
int *pos, char *buf, char **v)
{
if (0 == buf[*pos])
return(0);
if ('\"' != buf[*pos]) {
*v = &buf[*pos];
while (buf[*pos] && ! isspace(buf[*pos]))
(*pos)++;
if (0 == buf[*pos])
return(1);
buf[(*pos)++] = 0;
if (0 == buf[*pos])
return(1);
while (buf[*pos] && isspace(buf[*pos]))
(*pos)++;
if (buf[*pos])
return(1);
if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_WS_EOLN))
return(-1);
return(1);
}
if ('-' == buf[*pos])
if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_ARGLIKE))
return(-1);
*v = &buf[++(*pos)];
while (buf[*pos] && '\"' != buf[*pos])
(*pos)++;
if (0 == buf[*pos]) {
(void)mdoc_err(mdoc, tok, *pos, ERR_SYNTAX_UNQUOTE);
return(-1);
}
buf[(*pos)++] = 0;
if (0 == buf[*pos])
return(1);
while (buf[*pos] && isspace(buf[*pos]))
(*pos)++;
if (buf[*pos])
return(1);
if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_WS_EOLN))
return(-1);
return(1);
}
int
mdoc_argv_lookup(int tok, const char *argv)
{
switch (tok) {
case (MDOC_Bl):
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);
else 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, "compact"))
return(MDOC_Compact);
break;
default:
abort();
/* NOTREACHED */
}
return(MDOC_ARG_MAX);
}
int
mdoc_argv_parse(struct mdoc *mdoc, int tok, int arg,
struct mdoc_arg *v, int *pos, char *buf)
{
char *p;
int c, ppos, i;
v->arg = arg;
ppos = *pos;
switch (arg) {
case(MDOC_Compact):
/* FALLTHROUGH */
case(MDOC_Ragged):
/* FALLTHROUGH */
case(MDOC_Unfilled):
/* FALLTHROUGH */
case(MDOC_Literal):
/* FALLTHROUGH */
case(MDOC_File):
/* FALLTHROUGH */
case(MDOC_Bullet):
/* FALLTHROUGH */
case(MDOC_Dash):
/* FALLTHROUGH */
case(MDOC_Hyphen):
/* FALLTHROUGH */
case(MDOC_Item):
/* FALLTHROUGH */
case(MDOC_Enum):
/* FALLTHROUGH */
case(MDOC_Tag):
/* FALLTHROUGH */
case(MDOC_Diag):
/* FALLTHROUGH */
case(MDOC_Hang):
/* FALLTHROUGH */
case(MDOC_Ohang):
/* FALLTHROUGH */
case(MDOC_Inset):
v->sz = 0;
v->value = NULL;
break;
case(MDOC_Width):
/* FALLTHROUGH */
case(MDOC_Offset):
/*
* This has a single value for an argument.
*/
c = parse_next(mdoc, tok, pos, buf, &p);
if (-1 == c)
return(0);
else if (0 == 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 = parse_next(mdoc, tok, pos, buf, &p);
if (-1 == c) {
free(v->value);
return(0);
} else if (0 == 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:
abort();
/* NOTREACHED */
}
return(1);
}
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);
}
}
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