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Revision 1.4, Tue Mar 22 09:48:13 2011 UTC (10 years, 2 months ago) by kristaps
Branch: MAIN
CVS Tags: VERSION_1_11_4, VERSION_1_11_3, VERSION_1_11_2, VERSION_1_11_1
Changes since 1.3: +1 -2 lines

Step 1 of restructuring: libmandoc.h.  Move all compiler-set-specific
stuff into libmandoc.h, including old mdoc.h/man.h/roff.h functions now
used by read.c.  The motivation behind this is to tighten the
relationship between the underlying compilers while keeping parse data
hidden from general callers (e.g., main.c).

While here, also move register values from mandoc.h into libmandoc.h as
noted by schwarze@.  See above for explanation.

/*	$Id: eqn.c,v 1.4 2011/03/22 09:48:13 kristaps 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.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);
}