1 /* $Id: eqn_term.c,v 1.2 2014/04/20 16:44:44 schwarze 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 #include <assert.h> 18 #include <stdio.h> 19 #include <stdlib.h> 20 #include <string.h> 21 22 #include "mandoc.h" 23 #include "out.h" 24 #include "term.h" 25 26 static const enum termfont fontmap[EQNFONT__MAX] = { 27 TERMFONT_NONE, /* EQNFONT_NONE */ 28 TERMFONT_NONE, /* EQNFONT_ROMAN */ 29 TERMFONT_BOLD, /* EQNFONT_BOLD */ 30 TERMFONT_BOLD, /* EQNFONT_FAT */ 31 TERMFONT_UNDER /* EQNFONT_ITALIC */ 32 }; 33 34 static void eqn_box(struct termp *, const struct eqn_box *); 35 36 37 void 38 term_eqn(struct termp *p, const struct eqn *ep) 39 { 40 41 p->flags |= TERMP_NONOSPACE; 42 eqn_box(p, ep->root); 43 term_word(p, " "); 44 p->flags &= ~TERMP_NONOSPACE; 45 } 46 47 static void 48 eqn_box(struct termp *p, const struct eqn_box *bp) 49 { 50 51 if (EQNFONT_NONE != bp->font) 52 term_fontpush(p, fontmap[(int)bp->font]); 53 if (bp->left) 54 term_word(p, bp->left); 55 if (EQN_SUBEXPR == bp->type) 56 term_word(p, "("); 57 58 if (bp->text) 59 term_word(p, bp->text); 60 61 if (bp->first) 62 eqn_box(p, bp->first); 63 64 if (EQN_SUBEXPR == bp->type) 65 term_word(p, ")"); 66 if (bp->right) 67 term_word(p, bp->right); 68 if (EQNFONT_NONE != bp->font) 69 term_fontpop(p); 70 71 if (bp->next) 72 eqn_box(p, bp->next); 73 } 74