package com.cherami;
public class GB2312 {
public static final int SYMBOL_START=0xa1a1;
public static final int SYMBOL_END=0xa9fe;
public static final int FIRST_LEVEL_START=0xb0a1;
public static final int FIRST_LEVEL_END=0xd7fe;
public static final int SECOND_LEVEL_START=0xd8a1;
public static final int SECOND_LEVEL_END=0xf7fe;
public static boolean isSymbol(char c) {
return isGb2312ValueRange(c,SYMBOL_START,SYMBOL_END);
}
public static boolean isFirstLevel(char c) {
return isGb2312ValueRange(c,FIRST_LEVEL_START,FIRST_LEVEL_END);
}
public static boolean isSecondLevel(char c) {
return isGb2312ValueRange(c,SECOND_LEVEL_START,SECOND_LEVEL_END);
}
public static boolean isGb2312ValueRange(char c,int start,int end) {
String s= new String(new char[]{c});
byte[] bs;
try {
bs = s.getBytes(“GB2312”);
} catch (java.io.UnsupportedEncodingException e) {
return false;
}
if (bs.length < 2) {
return false;
}
int b1 = bs[0] & 0xff;
int b2 = bs[1] & 0xff;
int value = (b1 << 8) | b2;
if (value>=start&&value<=end) {
return true;
}
return false;
}
public static char getFirstPinyin(String str) {
byte[] bs;
try {
bs = str.getBytes(“GB2312”);
} catch (java.io.UnsupportedEncodingException e) {
return '*';
}
if (bs.length == 0)
return '*';
if (bs.length >= 2) {
int b1 = bs[0] & 0xff;
int b2 = bs[1] & 0xff;
int value = (b1 << 8) | b2;
if (value >= 0xb0a1 && value <= 0xb0c4)
return 'a';
if (value >= 0xb0c5 && value <= 0xb2c0)
return 'b';
if (value >= 0xb2c1 && value <= 0xb4ed)
return 'c';
if (value >= 0xb4ee && value <= 0xb6e9)
return 'd';
if (value >= 0xb6ea && value <= 0xb7a1)
return 'e';
if (value >= 0xb7a2 && value <= 0xb8c0)
return 'f';
if (value >= 0xb8c1 && value <= 0xb9fd)
return 'g';
if (value >= 0xb9fe && value <= 0xbbf6)
return 'h';
if (value >= 0xbbf7 && value <= 0xbfa5)
return 'j';
if (value >= 0xbfa6 && value <= 0xc0ab)
return 'k';
if (value >= 0xc0ac && value <= 0xc2e7)
return 'l';
if (value >= 0xc2e8 && value <= 0xc4c2)
return 'm';
if (value >= 0xc4c3 && value <= 0xc5b5)
return 'n';
if (value >= 0xc5b6 && value <= 0xc5bd)
return 'o';
if (value >= 0xc5be && value <= 0xc6d9)
return 'p';
if (value >= 0xc6da && value <= 0xc8ba)
return 'q';
if (value >= 0xc8bb && value <= 0xc8f5)
return 'r';
if (value >= 0xc8f6 && value <= 0xcbf9)
return 's';
if (value >= 0xcbfa && value <= 0xcdd9)
return 't';
if (value >= 0xcdda && value <= 0xcef3)
return 'w';
if (value >= 0xcef4 && value <= 0xd188)
return 'x';
if (value >= 0xd189 && value <= 0xd4d0)
return 'y';
if (value >= 0xd4d1 && value <= 0xd7fe)
return 'z';
}
return '*';
}
}
