File: [cvsweb.bsd.lv] / mandoc / tbl.c (download)
Revision 1.5, Wed Dec 29 01:16:57 2010 UTC (13 years, 8 months ago) by kristaps
Branch: MAIN
Changes since 1.4: +24 -63 lines
Significant update to options handling, which now departs almost
completely with the BSD.lv code due to performance issues and flat-out
errors.
Performance issues: functions called per character. Ugly.
Flat-out errors: disallowing "reserved" tokens as arguments to those
options accepting arguments.
Also added are two mandoc.h error codes for general tbl syntax errors
and for bad options.
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/* $Id: tbl.c,v 1.5 2010/12/29 01:16:57 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 void tbl_init(struct tbl *);
static void tbl_clear(struct tbl *);
static void
tbl_clear(struct tbl *tbl)
{
}
static void
tbl_init(struct tbl *tbl)
{
tbl->part = TBL_PART_OPTS;
tbl->tab = '\t';
tbl->linesize = 12;
tbl->decimal = '.';
}
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 we're in the options section and we don't have a
* terminating semicolon, assume we've moved directly into the
* layout section. No need to report a warning: this is,
* apparently, standard behaviour.
*/
if (TBL_PART_OPTS == tbl->part && len)
if (';' != cp[len - 1])
tbl->part = TBL_PART_LAYOUT;
/* Now process each logical section of the table. */
switch (tbl->part) {
case (TBL_PART_OPTS):
return(tbl_option(tbl, ln, p) ? ROFF_IGN : ROFF_ERR);
default:
break;
}
return(ROFF_CONT);
}
struct tbl *
tbl_alloc(void *data, const mandocmsg msg)
{
struct tbl *p;
p = mandoc_malloc(sizeof(struct tbl));
p->data = data;
p->msg = msg;
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);
}