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/* $Id: eqn.c,v 1.3 2011/04/24 16:22:02 schwarze Exp $ */
/*
* Copyright (c) 2011 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "mandoc.h"
#include "libmandoc.h"
#include "libroff.h"
/* ARGSUSED */
enum rofferr
eqn_read(struct eqn_node **epp, int ln, const char *p, int offs)
{
size_t sz;
struct eqn_node *ep;
if (0 == strcmp(p, ".EN")) {
*epp = NULL;
return(ROFF_EQN);
}
ep = *epp;
sz = strlen(&p[offs]);
ep->eqn.data = mandoc_realloc(ep->eqn.data, ep->eqn.sz + sz + 1);
if (0 == ep->eqn.sz)
*ep->eqn.data = '\0';
ep->eqn.sz += sz;
strlcat(ep->eqn.data, &p[offs], ep->eqn.sz + 1);
return(ROFF_IGN);
}
struct eqn_node *
eqn_alloc(int pos, int line)
{
struct eqn_node *p;
p = mandoc_calloc(1, sizeof(struct eqn_node));
p->eqn.line = line;
p->eqn.pos = pos;
return(p);
}
/* ARGSUSED */
void
eqn_end(struct eqn_node *e)
{
/* Nothing to do. */
}
void
eqn_free(struct eqn_node *p)
{
free(p->eqn.data);
free(p);
}
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