1/*************************************************************************/
2/* */
3/* Language Technologies Institute */
4/* Carnegie Mellon University */
5/* Copyright (c) 1999 */
6/* All Rights Reserved. */
7/* */
8/* Permission is hereby granted, free of charge, to use and distribute */
9/* this software and its documentation without restriction, including */
10/* without limitation the rights to use, copy, modify, merge, publish, */
11/* distribute, sublicense, and/or sell copies of this work, and to */
12/* permit persons to whom this work is furnished to do so, subject to */
13/* the following conditions: */
14/* 1. The code must retain the above copyright notice, this list of */
15/* conditions and the following disclaimer. */
16/* 2. Any modifications must be clearly marked as such. */
17/* 3. Original authors' names are not deleted. */
18/* 4. The authors' names are not used to endorse or promote products */
19/* derived from this software without specific prior written */
20/* permission. */
21/* */
22/* CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK */
23/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
24/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
25/* SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE */
26/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
27/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
28/* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
29/* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
30/* THIS SOFTWARE. */
31/* */
32/*************************************************************************/
33/* Author: Alan W Black (awb@cs.cmu.edu) */
34/* Date: December 1999 */
35/*************************************************************************/
36/* */
37/* Letter to sound rules */
38/* */
39/*************************************************************************/
40#ifndef _CST_LTS_H__
41#define _CST_LTS_H__
42
43#include "cst_val.h"
44
45typedef unsigned short cst_lts_addr;
46typedef int cst_lts_phone;
47typedef unsigned char cst_lts_feat;
48typedef unsigned char cst_lts_letter;
49typedef unsigned char cst_lts_model;
50
51/* end of rule value */
52#define CST_LTS_EOR 255
53
54typedef struct cst_lts_rules_struct {
55 char *name;
56 const cst_lts_addr *letter_index; /* index into model first state */
57 const cst_lts_model *models;
58 const char * const * phone_table;
59 int context_window_size;
60 int context_extra_feats;
61 const char * const * letter_table;
62} cst_lts_rules;
63
64/* Note this is designed to be 6 bytes */
65typedef struct cst_lts_rule_struct {
66 cst_lts_feat feat;
67 cst_lts_letter val;
68 cst_lts_addr qtrue;
69 cst_lts_addr qfalse;
70} cst_lts_rule;
71
72cst_lts_rules *new_lts_rules();
73
74cst_val *lts_apply(const char *word,const char *feats,const cst_lts_rules *r);
75cst_val *lts_apply_val(const cst_val *wlist,const char *feats,const cst_lts_rules *r);
76
77#endif
78
79

source code of include/flite/cst_lts.h