Android Open Source - pulltorefresh_library_with_Indexable_listView String Matcher

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2011 woozzu//w  w  w .  j  ava  2 s.  c  om
 *
 * 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 com.handmark.pulltorefresh.library;

public class StringMatcher {
  
  
  private final static char KOREAN_UNICODE_START = '??';
  private final static char KOREAN_UNICODE_END = '?R';
  private final static char KOREAN_UNIT = '??' - '??';
  private final static char[] KOREAN_INITIAL = {'??', '??', '??', '??', '??', '??', '??', '??', '??', '??'
    , '??', '??', '??', '??', '??', '??', '??', '??', '??'};
  
  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];
  }
}

Java Source Code List

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