File: [cvsweb.bsd.lv] / mandoc / tbl.c (download)
Revision 1.4, Tue Dec 28 13:47:38 2010 UTC (13 years, 8 months ago) by kristaps
Branch: MAIN
Changes since 1.3: +2 -2 lines
Fix copyright email.
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/* $Id: tbl.c,v 1.4 2010/12/28 13:47:38 kristaps Exp $ */
/*
* Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "mandoc.h"
#include "roff.h"
#include "libmandoc.h"
#include "libroff.h"
static const char tbl_toks[TBL_TOK__MAX] = {
'(', ')', ',', ';', '.',
' ', '\t', '\0'
};
static void tbl_init(struct tbl *);
static void tbl_clear(struct tbl *);
static enum tbl_tok tbl_next_char(char);
static void
tbl_clear(struct tbl *tbl)
{
}
static void
tbl_init(struct tbl *tbl)
{
tbl->part = TBL_PART_OPTS;
}
enum rofferr
tbl_read(struct tbl *tbl, int ln, const char *p, int offs)
{
int len;
const char *cp;
cp = &p[offs];
len = (int)strlen(cp);
if (len && TBL_PART_OPTS == tbl->part)
if (';' != cp[len - 1])
tbl->part = TBL_PART_LAYOUT;
return(ROFF_CONT);
}
struct tbl *
tbl_alloc(void)
{
struct tbl *p;
p = mandoc_malloc(sizeof(struct tbl));
tbl_init(p);
return(p);
}
void
tbl_free(struct tbl *p)
{
tbl_clear(p);
free(p);
}
void
tbl_reset(struct tbl *tbl)
{
tbl_clear(tbl);
tbl_init(tbl);
}
static enum tbl_tok
tbl_next_char(char c)
{
int i;
/*
* These are delimiting tokens. They separate out words in the
* token stream.
*
* FIXME: make this into a hashtable for faster lookup.
*/
for (i = 0; i < TBL_TOK__MAX; i++)
if (c == tbl_toks[i])
return((enum tbl_tok)i);
return(TBL_TOK__MAX);
}
enum tbl_tok
tbl_next(struct tbl *tbl, const char *p, int *pos)
{
int i;
enum tbl_tok c;
tbl->buf[0] = '\0';
if (TBL_TOK__MAX != (c = tbl_next_char(p[*pos]))) {
if (TBL_TOK_NIL != c) {
tbl->buf[0] = p[*pos];
tbl->buf[1] = '\0';
(*pos)++;
}
return(c);
}
/*
* Copy words into a nil-terminated buffer. For now, we use a
* static buffer. FIXME: eventually this should be made into a
* dynamic one living in struct tbl.
*/
for (i = 0; i < BUFSIZ; i++, (*pos)++)
if (TBL_TOK__MAX == tbl_next_char(p[*pos]))
tbl->buf[i] = p[*pos];
else
break;
assert(i < BUFSIZ);
tbl->buf[i] = '\0';
return(TBL_TOK__MAX);
}