90 lines
4.1 KiB
C
90 lines
4.1 KiB
C
|
/************************************************************************/
|
||
|
|
/* */
|
||
|
|
/* Centre for Speech Technology Research */
|
||
|
|
/* University of Edinburgh, UK */
|
||
|
|
/* Copyright (c) 1996,1997 */
|
||
|
|
/* 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. */
|
||
|
|
/* */
|
||
|
|
/* THE UNIVERSITY OF EDINBURGH 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 THE UNIVERSITY OF EDINBURGH 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 */
|
||
|
|
/* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
|
||
|
|
/* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
|
||
|
|
/* THIS SOFTWARE. */
|
||
|
|
/* */
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef __EST_FEATUREFUNCTIONCONTEXT_H__
|
||
|
|
#define __EST_FEATUREFUNCTIONCONTEXT_H__
|
||
|
|
|
||
|
|
/** A feature function context is the interface through which feature
|
||
|
|
* functions are looked up. It is basically a list of feature function
|
||
|
|
* packages.
|
||
|
|
*
|
||
|
|
* @author Richard Caley <rjc@cstr.ed.ac.uk>
|
||
|
|
* @version $Id: EST_FeatureFunctionContext.h,v 1.3 2004/05/04 00:00:17 awb Exp $ */
|
||
|
|
|
||
|
|
#include "ling_class/EST_FeatureFunctionPackage.h"
|
||
|
|
|
||
|
|
class ling_class_init;
|
||
|
|
|
||
|
|
class EST_FeatureFunctionContext {
|
||
|
|
private:
|
||
|
|
EST_TList <EST_FeatureFunctionPackage *> packages;
|
||
|
|
EST_TStringHash <EST_Item_featfunc> cache;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
static EST_FeatureFunctionContext *global;
|
||
|
|
|
||
|
|
void add_package(EST_FeatureFunctionPackage *package);
|
||
|
|
EST_FeatureFunctionPackage *get_package(const EST_String name) const;
|
||
|
|
|
||
|
|
EST_String get_featfunc_name(const EST_Item_featfunc func, int &found) const;
|
||
|
|
|
||
|
|
public:
|
||
|
|
static const EST_String separator;
|
||
|
|
|
||
|
|
EST_FeatureFunctionContext(void);
|
||
|
|
~EST_FeatureFunctionContext(void);
|
||
|
|
|
||
|
|
void clear_cache(void);
|
||
|
|
void add_package(const EST_String name);
|
||
|
|
bool package_included(const EST_String name) const;
|
||
|
|
const EST_Item_featfunc get_featfunc(const EST_String name,
|
||
|
|
int must=0);
|
||
|
|
const EST_Item_featfunc get_featfunc(const EST_String package,
|
||
|
|
const EST_String name,
|
||
|
|
int must=0);
|
||
|
|
|
||
|
|
protected:
|
||
|
|
static void class_init(void);
|
||
|
|
|
||
|
|
friend class ling_class_init;
|
||
|
|
|
||
|
|
friend void EST_register_feature_function_package(const char *name, void (*init_fn)(EST_FeatureFunctionPackage &p));
|
||
|
|
friend void register_featfunc(const EST_String &name, const EST_Item_featfunc func);
|
||
|
|
friend const EST_Item_featfunc get_featfunc(const EST_String &name,int must);
|
||
|
|
friend EST_String get_featname(const EST_Item_featfunc func);
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|