Import mdocml-1.13.1
[dragonfly.git] / contrib / mdocml / eqn_term.c
CommitLineData
070c62a6 1/* $Id: eqn_term.c,v 1.5 2014/04/20 16:46:04 schwarze Exp $ */
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2/*
3 * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17#ifdef HAVE_CONFIG_H
18#include "config.h"
19#endif
20
21#include <assert.h>
22#include <stdio.h>
23#include <stdlib.h>
24#include <string.h>
25
26#include "mandoc.h"
27#include "out.h"
28#include "term.h"
29
30static const enum termfont fontmap[EQNFONT__MAX] = {
31 TERMFONT_NONE, /* EQNFONT_NONE */
32 TERMFONT_NONE, /* EQNFONT_ROMAN */
33 TERMFONT_BOLD, /* EQNFONT_BOLD */
34 TERMFONT_BOLD, /* EQNFONT_FAT */
35 TERMFONT_UNDER /* EQNFONT_ITALIC */
36};
37
38static void eqn_box(struct termp *, const struct eqn_box *);
39
070c62a6 40
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41void
42term_eqn(struct termp *p, const struct eqn *ep)
43{
44
45 p->flags |= TERMP_NONOSPACE;
46 eqn_box(p, ep->root);
47 term_word(p, " ");
48 p->flags &= ~TERMP_NONOSPACE;
49}
50
51static void
52eqn_box(struct termp *p, const struct eqn_box *bp)
53{
54
55 if (EQNFONT_NONE != bp->font)
56 term_fontpush(p, fontmap[(int)bp->font]);
57 if (bp->left)
58 term_word(p, bp->left);
59 if (EQN_SUBEXPR == bp->type)
60 term_word(p, "(");
61
62 if (bp->text)
63 term_word(p, bp->text);
64
65 if (bp->first)
66 eqn_box(p, bp->first);
67
68 if (EQN_SUBEXPR == bp->type)
69 term_word(p, ")");
70 if (bp->right)
71 term_word(p, bp->right);
070c62a6 72 if (EQNFONT_NONE != bp->font)
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73 term_fontpop(p);
74
75 if (bp->next)
76 eqn_box(p, bp->next);
77}