diff options
Diffstat (limited to 'eqn_term.c')
-rw-r--r-- | eqn_term.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/eqn_term.c b/eqn_term.c new file mode 100644 index 00000000..8e49b729 --- /dev/null +++ b/eqn_term.c @@ -0,0 +1,88 @@ +/* $Id$ */ +/* + * 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 void eqn_box(struct termp *p, const struct eqn_box *); +static void eqn_box_post(struct termp *p, const struct eqn_box *); +static void eqn_box_pre(struct termp *p, const struct eqn_box *); +static void eqn_text(struct termp *p, const struct eqn_box *); + +void +term_eqn(struct termp *p, const struct eqn *ep) +{ + + p->flags |= TERMP_NONOSPACE; + eqn_box(p, ep->root); + p->flags &= ~TERMP_NONOSPACE; +} + +static void +eqn_box(struct termp *p, const struct eqn_box *bp) +{ + + eqn_box_pre(p, bp); + eqn_text(p, bp); + + if (bp->first) + eqn_box(p, bp->first); + + eqn_box_post(p, bp); + + if (bp->next) + eqn_box(p, bp->next); +} + +static void +eqn_box_pre(struct termp *p, const struct eqn_box *bp) +{ + + if (EQN_LIST == bp->type) + term_word(p, "{"); + if (bp->left) + term_word(p, bp->left); +} + +static void +eqn_box_post(struct termp *p, const struct eqn_box *bp) +{ + + if (EQN_LIST == bp->type) + term_word(p, "}"); + if (bp->right) + term_word(p, bp->right); + if (bp->above) + term_word(p, "|"); +} + +static void +eqn_text(struct termp *p, const struct eqn_box *bp) +{ + + if (bp->text) + term_word(p, bp->text); +} |