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/******************************************************************************
** Filename: flexfx.c
** Purpose: Interface to flexible feature extractor.
** Author: Dan Johnson
** History: Wed May 23 13:45:10 1990, DSJ, Created.
**
** (c) Copyright Hewlett-Packard Company, 1988.
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
** http://www.apache.org/licenses/LICENSE-2.0
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
******************************************************************************/
/**----------------------------------------------------------------------------
Include Files and Type Defines
----------------------------------------------------------------------------**/
#include "flexfx.h"
#include "featdefs.h"
#include "variables.h"
#include "sigmenu.h"
#include "emalloc.h"
#include <string.h>
#include <stdio.h>
/**----------------------------------------------------------------------------
Public Code
----------------------------------------------------------------------------**/
/*---------------------------------------------------------------------------*/
CHAR_DESC ExtractFlexFeatures(TBLOB *Blob, LINE_STATS *LineStats) {
/*
** Parameters:
** Blob blob to extract features from
** LineStats statistics about text line Blob is on
** Globals: none
** Operation: Allocate a new character descriptor and fill it in by
** calling all feature extractors which are enabled.
** Return: Structure containing features extracted from Blob.
** Exceptions: none
** History: Wed May 23 13:46:22 1990, DSJ, Created.
*/
int Type;
CHAR_DESC CharDesc;
CharDesc = NewCharDescription ();
for (Type = 0; Type < CharDesc->NumFeatureSets; Type++)
if (FeatureDefs.FeatureExtractors[Type] != NULL &&
FeatureDefs.FeatureExtractors[Type]->Extractor != NULL)
CharDesc->FeatureSets[Type] =
(FeatureDefs.FeatureExtractors[Type])->Extractor (Blob, LineStats);
return (CharDesc);
} /* ExtractFlexFeatures */
/*---------------------------------------------------------------------------*/
void
InitFlexFXVars ()
/*
** Parameters: none
** Globals: none
** Operation: Add any control variables used by the feature extractors
** to the variable system. This includes the enable flag for
** each individual extractor. This routine needs to create
** a separate name for the enable for each feature extractor
** and allocate a string to contain that name. This is
** necessary since the "variables" routines do not create
** copies of the string names passed to them.
** Return: none
** Exceptions: none
** History: Wed May 23 15:59:23 1990, DSJ, Created.
*/
#define NamePrefix "Enable"
#define NameSuffix "Features"
{
int Type;
SetupExtractors();
for (Type = 0; Type < FeatureDefs.NumFeatureTypes; Type++) {
(FeatureDefs.FeatureExtractors[Type])->InitExtractorVars ();
}
} /* InitFlexFXVars */
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