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package com.wlkj.util;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import net.sourceforge.pinyin4j.PinyinHelper;

public class ChineseUtil {
/**
 * 判断中文字符
 * @param c
 * @return
 */
public static boolean isChinese(char c){
    Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
    if(ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS ||
       ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS ||
       ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A ||
       ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B ||
       ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION ||
       ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS ||
       ub == Character.UnicodeBlock.GENERAL_PUNCTUATION){
        return true;
    }
    return false;
}
 
/**
 * 包含中文字符
 * @param str
 * @return
 */
public static boolean containsChinese(String str){
    char[] ch = str.toCharArray();
    for(char c : ch){
        if(isChinese(c)){
            return true;
        }
    }
    return false;
}

/**
 * 是否中文（非标点符号）
 * @param c
 * @return
 */
public static boolean isChineseWord(char c) {
	char[] ch = {c};
	Pattern pattern = Pattern.compile("([\u4E00-\uFA29]|[\uE7C7-\uE7F3])");
	Matcher matcher = pattern.matcher(new String(ch));
	return matcher.find();
}

/**
 * 包含汉字（非标点符号）
 * @param name
 * @return
 */
public static boolean containsChineseWords(String name) {
	Pattern pattern = Pattern.compile("^.*([\u4E00-\uFA29]|[\uE7C7-\uE7F3])+.*$");
	Matcher matcher = pattern.matcher(name);
	return matcher.find();
}

/**
 * 转换成拼音字母缩写
 * @param str
 * @return abbr
 */
public static String toPinyinAbbr(String str){
	String abbr = "";
	for(char c : str.toCharArray()){
		if(ChineseUtil.isChineseWord(c)){
			abbr += PinyinHelper.toHanyuPinyinStringArray(c)[0].substring(0, 1).toUpperCase();
		}
	}
	return abbr;
}

public static void main(String[] args) {
	System.out.println(isChinese('め'));// false
	System.out.println(isChineseWord('我'));// true
	System.out.println(containsChinese("a我b"));// true
	System.out.println(containsChineseWords("a，b")); // false
}