ref: 5095f44178e0cbf98419f1a4a22b5d0581813877
dir: /include/cst_relation.h/
/*************************************************************************/
/* */
/* Language Technologies Institute */
/* Carnegie Mellon University */
/* Copyright (c) 1999 */
/* All Rights Reserved. */
/* */
/* Permission is hereby granted, free of charge, to use and distribute */
/* this software and its documentation without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of this work, and to */
/* permit persons to whom this work is furnished to do so, subject to */
/* the following conditions: */
/* 1. The code must retain the above copyright notice, this list of */
/* conditions and the following disclaimer. */
/* 2. Any modifications must be clearly marked as such. */
/* 3. Original authors' names are not deleted. */
/* 4. The authors' names are not used to endorse or promote products */
/* derived from this software without specific prior written */
/* permission. */
/* */
/* CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK */
/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
/* SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE */
/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
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/* THIS SOFTWARE. */
/* */
/*************************************************************************/
/* Author: Alan W Black (awb@cs.cmu.edu) */
/* Date: December 1999 */
/*************************************************************************/
/* */
/* Relation */
/* */
/*************************************************************************/
#ifndef _CST_RELATION_H__
#define _CST_RELATION_H__
#include "cst_file.h"
#include "cst_val.h"
#include "cst_features.h"
#include "cst_item.h"
#include "cst_utterance.h"
struct cst_relation_struct {
char *name;
cst_features *features;
cst_utterance *utterance;
cst_item *head;
cst_item *tail;
};
/* Constructor functions */
cst_relation *new_relation(const char *name, cst_utterance *u);
void delete_relation(cst_relation *r);
cst_item *relation_head(cst_relation *r);
cst_item *relation_tail(cst_relation *r);
const char *relation_name(cst_relation *r);
cst_item *relation_append(cst_relation *r,cst_item *i);
cst_item *relation_prepend(cst_relation *r,cst_item *i);
int relation_load(cst_relation *r, const char *filename);
int relation_save(cst_relation *r, const char *filename);
#endif