76 lines
2 KiB
C
76 lines
2 KiB
C
/* $Vendor-Id: eqn_term.c,v 1.4 2011/07/24 10:09:03 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 "mandoc.h"
|
|
#include "out.h"
|
|
#include "term.h"
|
|
|
|
static const enum termfont fontmap[EQNFONT__MAX] = {
|
|
TERMFONT_NONE, /* EQNFONT_NONE */
|
|
TERMFONT_NONE, /* EQNFONT_ROMAN */
|
|
TERMFONT_BOLD, /* EQNFONT_BOLD */
|
|
TERMFONT_BOLD, /* EQNFONT_FAT */
|
|
TERMFONT_UNDER /* EQNFONT_ITALIC */
|
|
};
|
|
|
|
static void eqn_box(struct termp *, const struct eqn_box *);
|
|
|
|
void
|
|
term_eqn(struct termp *p, const struct eqn *ep)
|
|
{
|
|
|
|
p->flags |= TERMP_NONOSPACE;
|
|
eqn_box(p, ep->root);
|
|
term_word(p, " ");
|
|
p->flags &= ~TERMP_NONOSPACE;
|
|
}
|
|
|
|
static void
|
|
eqn_box(struct termp *p, const struct eqn_box *bp)
|
|
{
|
|
|
|
if (EQNFONT_NONE != bp->font)
|
|
term_fontpush(p, fontmap[(int)bp->font]);
|
|
if (bp->left)
|
|
term_word(p, bp->left);
|
|
if (EQN_SUBEXPR == bp->type)
|
|
term_word(p, "(");
|
|
|
|
if (bp->text)
|
|
term_word(p, bp->text);
|
|
|
|
if (bp->first)
|
|
eqn_box(p, bp->first);
|
|
|
|
if (EQN_SUBEXPR == bp->type)
|
|
term_word(p, ")");
|
|
if (bp->right)
|
|
term_word(p, bp->right);
|
|
if (EQNFONT_NONE != bp->font)
|
|
term_fontpop(p);
|
|
|
|
if (bp->next)
|
|
eqn_box(p, bp->next);
|
|
}
|