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/*
* ====================================================================
* Project: openMDX, http://www.openmdx.org/
* Description: Access Insensitive Pattern
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2013, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the openMDX team nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ------------------
*
* This product includes or is based on software developed by other
* organizations as listed in the NOTICE file.
*/
package org.openmdx.base.query.spi;
import java.util.EnumSet;
import org.openmdx.base.query.spi.EmbeddedFlags;
import org.w3c.cci2.RegularExpressionFlag;
public class AccentInsensitivePattern extends RegularExpressionPattern {
private AccentInsensitivePattern(String pattern, EnumSet flagSet) {
super(fold(pattern), flagSet);
this.pattern = pattern;
}
/**
* Implements Serializable
*/
private static final long serialVersionUID = -7427116394830879489L;
private final String pattern;
private static char[] MAPPING = {
'a', // u00e0
'a', // u00e1
'a', // u00e2
'a', // u00e3
'a', // u00e4
'a', // u00e5
'a', // u00e6
'c', // u00e7
'e', // u00e8
'e', // u00e9
'e', // u00ea
'e', // u00eb
'i', // u00ec
'i', // u00ed
'i', // u00ee
'i', // u00ef
'd', // u00e0
'n', // u00f1
'o', // u00f2
'o', // u00f3
'o', // u00f4
'o', // u00f5
'o', // u00f6
'\u00f7',
'o', // u00f8
'u', // u00f9
'u', // u00fa
'u', // u00fb
'u', // u00fc
'y', // u00fd
'\u00fe',
'y' // u00ff
};
static AccentInsensitivePattern newInstance(
final EmbeddedFlags.FlagsAndValue embeddedFlags
){
return new AccentInsensitivePattern(embeddedFlags.getValue(), embeddedFlags.getFlagSet());
}
@Override
public boolean matches(String input) {
return super.matches(fold(input));
}
@Override
public String pattern() {
return this.pattern;
}
public static String fold(String value) {
StringBuilder buffer = new StringBuilder(value.toLowerCase());
for(int i = 0,l = buffer.length(); i < l; i++) {
final char c = buffer.charAt(i);
if(c >= '\u00e0' && c <= '\u00ff') {
buffer.setCharAt(i, MAPPING[c - '\u00e0']);
}
}
return buffer.toString();
}
}
