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 /* Relation */ 38 /* */ 39 /*************************************************************************/ 40 #ifndef _CST_RELATION_H__ 41 #define _CST_RELATION_H__ 42 43 #include "cst_file.h" 44 #include "cst_val.h" 45 #include "cst_features.h" 46 #include "cst_item.h" 47 #include "cst_utterance.h" 48 49 struct cst_relation_struct { 50 char *name; 51 cst_features *features; 52 cst_utterance *utterance; 53 cst_item *head; 54 cst_item *tail; 55 }; 56 57 /* Constructor functions */ 58 cst_relation *new_relation(const char *name, cst_utterance *u); 59 60 void delete_relation(cst_relation *r); 61 62 cst_item *relation_head(cst_relation *r); 63 cst_item *relation_tail(cst_relation *r); 64 const char *relation_name(cst_relation *r); 65 66 cst_item *relation_append(cst_relation *r,cst_item *i); 67 cst_item *relation_prepend(cst_relation *r,cst_item *i); 68 69 int relation_load(cst_relation *r, const char *filename); 70 int relation_save(cst_relation *r, const char *filename); 71 72 #endif 73