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/*
EPG2VDR Levenshtein Distance UDF for MySQL
Supports UTF-8 throught iconv.
Copyright (C) 2013 Jörg Wendel
*/
#include "epglv.h"
//***************************************************************************
// EPGLV()
//***************************************************************************
my_bool epglv_init(UDF_INIT* init, UDF_ARGS* args, char* message)
{
return base_epglv_init(init, args, message);
}
void epglv_deinit(UDF_INIT* init)
{
base_epglv_deinit(init);
}
long long epglv(UDF_INIT* init, UDF_ARGS* args, char* is_null, char* error)
{
long long len1 = 0, len2 = 0;
long long diff = base_epglv(init, args, is_null, error, &len1, &len2);
return diff;
}
//***************************************************************************
// EPGLVR()
//***************************************************************************
my_bool epglvr_init(UDF_INIT* init, UDF_ARGS* args, char* message)
{
return base_epglv_init(init, args, message);
}
void epglvr_deinit(UDF_INIT* init)
{
base_epglv_deinit(init);
}
long long epglvr(UDF_INIT* init, UDF_ARGS* args, char* is_null, char* error)
{
long long len1 = 0, len2 = 0;
long long diff = base_epglv(init, args, is_null, error, &len1, &len2);
long long len = len1 < len2 ? len2 : len1;
return (double)diff / ((double)len / 100.0);
}
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