/*
* Copyright 2011 woozzu
*
* 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.
*/
package net.coding.program.third.country.sidebar;
public class StringMatcher {
private final static char KOREAN_UNICODE_START = '+';
private final static char KOREAN_UNICODE_END = 'w';
private final static char KOREAN_UNIT = 'a';
private final static char[] KOREAN_INITIAL = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'k'
, 'l', 'm', 'n', 'o', 'p', 'q', 'x', 'y', 'z'};
public static boolean match(String value, String keyword) {
if (value == null || keyword == null)
return false;
if (keyword.length() > value.length())
return false;
int i = 0, j = 0;
do {
if (isKorean(value.charAt(i)) && isInitialSound(keyword.charAt(j))) {
if (keyword.charAt(j) == getInitialSound(value.charAt(i))) {
i++;
j++;
} else if (j > 0)
break;
else
i++;
} else {
if (keyword.charAt(j) == value.charAt(i)) {
i++;
j++;
} else if (j > 0)
break;
else
i++;
}
} while (i < value.length() && j < keyword.length());
return (j == keyword.length()) ? true : false;
}
private static boolean isKorean(char c) {
if (c >= KOREAN_UNICODE_START && c <= KOREAN_UNICODE_END)
return true;
return false;
}
private static boolean isInitialSound(char c) {
for (char i : KOREAN_INITIAL) {
if (c == i)
return true;
}
return false;
}
private static char getInitialSound(char c) {
return KOREAN_INITIAL[(c - KOREAN_UNICODE_START) / KOREAN_UNIT];
}
}