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 45 typedef unsigned short cst_lts_addr; 46 typedef int cst_lts_phone; 47 typedef unsigned char cst_lts_feat; 48 typedef unsigned char cst_lts_letter; 49 typedef unsigned char cst_lts_model; 50 51 /* end of rule value */ 52 #define CST_LTS_EOR 255 53 54 typedef 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 */ 65 typedef 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 72 cst_lts_rules *new_lts_rules(); 73 74 cst_val *lts_apply(const char *word,const char *feats,const cst_lts_rules *r); 75 cst_val *lts_apply_val(const cst_val *wlist,const char *feats,const cst_lts_rules *r); 76 77 #endif 78 79