How to achieve Java full Angle half Angle character conversion
- 2020-04-01 01:26:01
- OfStack
package com.whatycms.common.util;
import org.apache.commons.lang.StringUtils;
/**
* <PRE>
* Provides full Angle to the string -> Half an Angle, half an Angle -> The Angle of transformation
* </PRE>
*/
public class BCConvert {
static final char DBC_CHAR_START = 33; //Half Angle!
static final char DBC_CHAR_END = 126; //Half Angle ~
static final char SBC_CHAR_START = 65281; //The Angle!
static final char SBC_CHAR_END = 65374; //The Angle of ~
static final int CONVERT_STEP = 65248; //Full Angle half Angle conversion interval
static final char SBC_SPACE = 12288; //Full corner space 12288
static final char DBC_SPACE = ' '; //Half Angle space
/**
* <PRE>
* Half Angle character -> Full Angle character conversion
* I'm just dealing with Spaces, ! to ˜ Between the characters, ignore the others
* </PRE>
*/
private static String bj2qj(String src) {
if (src == null) {
return src;
}
StringBuilder buf = new StringBuilder(src.length());
char[] ca = src.toCharArray();
for (int i = 0; i < ca.length; i++) {
if (ca[i] == DBC_SPACE) { //If it is a half space, use the full space instead
buf.append(SBC_SPACE);
} else if ((ca[i] >= DBC_CHAR_START) && (ca[i] <= DBC_CHAR_END)) { //Character is! The visible character between ~ and
buf.append((char) (ca[i] + CONVERT_STEP));
} else { //Do not do anything with characters other than Spaces and other visible characters in the ASCII table
buf.append(ca[i]);
}
}
return buf.toString();
}
/**
* <PRE>
* The Angle of character -> Half corner character conversion
* Only full Angle Spaces, full Angle! To the full Angle ~ between the characters, ignore the others
* </PRE>
*/
public static String qj2bj(String src) {
if (src == null) {
return src;
}
StringBuilder buf = new StringBuilder(src.length());
char[] ca = src.toCharArray();
for (int i = 0; i < src.length(); i++) {
if (ca[i] >= SBC_CHAR_START && ca[i] <= SBC_CHAR_END) { //If at full Angle! To the whole Angle to the interval
buf.append((char) (ca[i] - CONVERT_STEP));
} else if (ca[i] == SBC_SPACE) { //If it's a full Angle space
buf.append(DBC_SPACE);
} else { //Do not handle full corner space, full corner! To a character outside the full Angle ~ interval
buf.append(ca[i]);
}
}
return buf.toString();
}
public static void main(String[] args) {
System.out.println(StringUtils.trimToEmpty(" a,b ,c "));
String s = "nihao Hk | nihehe, 787 ";
s=BCConvert.qj2bj(s);
System.out.println(s);
System.out.println(BCConvert.bj2qj(s));
}
}
Console output is as follows:
a,b ,c
nihaohk | nihehe , . 78 7
Nihaohk | nihehe. 787