Edinburgh Speech Tools
2.4-release
EST_FeatureFunctionContext.h
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/* Centre for Speech Technology Research */
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/*************************************************************************/
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#ifndef __EST_FEATUREFUNCTIONCONTEXT_H__
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#define __EST_FEATUREFUNCTIONCONTEXT_H__
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/** A feature function context is the interface through which feature
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* functions are looked up. It is basically a list of feature function
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* packages.
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*
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* @author Richard Caley <rjc@cstr.ed.ac.uk>
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* @version $Id: EST_FeatureFunctionContext.h,v 1.3 2004/05/04 00:00:17 awb Exp $ */
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#include "ling_class/EST_FeatureFunctionPackage.h"
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class
ling_class_init
;
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class
EST_FeatureFunctionContext
{
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private
:
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EST_TList <EST_FeatureFunctionPackage *>
packages;
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EST_TStringHash <EST_Item_featfunc>
cache;
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protected
:
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static
EST_FeatureFunctionContext
*global;
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void
add_package(
EST_FeatureFunctionPackage
*package);
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EST_FeatureFunctionPackage
*get_package(
const
EST_String
name)
const
;
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EST_String
get_featfunc_name(
const
EST_Item_featfunc func,
int
&found)
const
;
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public
:
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static
const
EST_String
separator;
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EST_FeatureFunctionContext
(
void
);
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~EST_FeatureFunctionContext
(
void
);
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void
clear_cache(
void
);
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void
add_package(
const
EST_String
name);
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bool
package_included(
const
EST_String
name)
const
;
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const
EST_Item_featfunc get_featfunc(
const
EST_String
name,
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int
must=0);
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const
EST_Item_featfunc get_featfunc(
const
EST_String
package,
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const
EST_String
name,
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int
must=0);
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protected
:
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static
void
class_init(
void
);
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friend
class
ling_class_init
;
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friend
void
EST_register_feature_function_package(
const
char
*name,
void
(*init_fn)(
EST_FeatureFunctionPackage
&p));
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friend
void
register_featfunc(
const
EST_String
&name,
const
EST_Item_featfunc func);
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friend
const
EST_Item_featfunc get_featfunc(
const
EST_String
&name,
int
must);
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friend
EST_String
get_featname(
const
EST_Item_featfunc func);
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};
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#endif
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EST_FeatureFunctionContext
Definition:
EST_FeatureFunctionContext.h:49
EST_FeatureFunctionPackage
Definition:
EST_FeatureFunctionPackage.h:48
EST_String
Definition:
EST_String.h:70
EST_TList< EST_FeatureFunctionPackage * >
EST_TStringHash< EST_Item_featfunc >
ling_class_init
Definition:
ling_class_init.h:51
ling_class
EST_FeatureFunctionContext.h
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