eqn_term.c

   1 /*      $Id: eqn_term.c,v 1.3 2011/07/23 22:57:13 kristaps Exp $ */
   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
  30 static void     eqn_box(struct termp *, const struct eqn_box *);
  31 static void     eqn_box_post(struct termp *, const struct eqn_box *);
  32 static void     eqn_box_pre(struct termp *, const struct eqn_box *);
  33 static void     eqn_text(struct termp *, const struct eqn_box *);
  34
  35 void
  36 term_eqn(struct termp *p, const struct eqn *ep)
  37 {
  38
  39         p->flags |= TERMP_NONOSPACE;
  40         eqn_box(p, ep->root);
  41         p->flags &= ~TERMP_NONOSPACE;
  42 }
  43
  44 static void
  45 eqn_box(struct termp *p, const struct eqn_box *bp)
  46 {
  47
  48         eqn_box_pre(p, bp);
  49         eqn_text(p, bp);
  50
  51         if (bp->first)
  52                 eqn_box(p, bp->first);
  53
  54         eqn_box_post(p, bp);
  55
  56         if (bp->next)
  57                 eqn_box(p, bp->next);
  58 }
  59
  60 static void
  61 eqn_box_pre(struct termp *p, const struct eqn_box *bp)
  62 {
  63
  64         if (bp->left)
  65                 term_word(p, bp->left);
  66 }
  67
  68 static void
  69 eqn_box_post(struct termp *p, const struct eqn_box *bp)
  70 {
  71
  72         if (bp->right)
  73                 term_word(p, bp->right);
  74 }
  75
  76 static void
  77 eqn_text(struct termp *p, const struct eqn_box *bp)
  78 {
  79
  80         if (bp->text)
  81                 term_word(p, bp->text);
  82 }