ASCII 2 NATIVE
/**
*
*/
//package com.exedosoft.plat.util;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
/**
* @author Administrator
*
*/
public class ASCII2NATIVE {
/**
*
*/
public ASCII2NATIVE() {
// TODO Auto-generated constructor stub
}
public static void main(String[] args) {
File f = new File(
"c:\\mydb.script");
File f2 = new File(
"c:\\mydb3.script");
if (f.exists() && f.isFile()) {
// convert param-file
BufferedReader br = null;
StringBuffer sb = new StringBuffer();
String line;
try {
br = new BufferedReader(new InputStreamReader(
new FileInputStream(f), "JISAutoDetect"));
while ((line = br.readLine()) != null) {
System.out.println(ascii2Native(line));
sb.append(ascii2Native(line)).append(";\n");//.append(";\n\r")
}
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(f2),"utf-8"));
out.append(sb.toString());
out.flush();
out.close();
} catch (FileNotFoundException e) {
System.err.println("file not found - " + f);
} catch (IOException e) {
System.err.println("read error - " + f);
} finally {
try {
if (br != null)
br.close();
} catch (Exception e) {
}
}
} else {
// // convert param-data
// System.out.print(ascii2native(args[i]));
// if (i + 1 < args.length)
// System.out.print(' ');
}
}
/**
* prefix of ascii string of native character
*/
private static String PREFIX = "\\u";
/**
* Native to ascii string. It's same as execut native2ascii.exe.
*
* @param str
* native string
* @return ascii string
*/
public static String native2Ascii(String str) {
char[] chars = str.toCharArray();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < chars.length; i++) {
sb.append(char2Ascii(chars[i]));
}
return sb.toString();
}
/**
* Native character to ascii string.
*
* @param c
* native character
* @return ascii string
*/
private static String char2Ascii(char c) {
if (c > 255) {
StringBuilder sb = new StringBuilder();
sb.append(PREFIX);
int code = (c >> 8);
String tmp = Integer.toHexString(code);
if (tmp.length() == 1) {
sb.append("0");
}
sb.append(tmp);
code = (c & 0xFF);
tmp = Integer.toHexString(code);
if (tmp.length() == 1) {
sb.append("0");
}
sb.append(tmp);
return sb.toString();
} else {
return Character.toString(c);
}
}
/**
* Ascii to native string. It's same as execut native2ascii.exe -reverse.
*
* @param str
* ascii string
* @return native string
*/
public static String ascii2Native(String str) {
StringBuilder sb = new StringBuilder();
int begin = 0;
int index = str.indexOf(PREFIX);
while (index != -1) {
sb.append(str.substring(begin, index));
sb.append(ascii2Char(str.substring(index, index + 6)));
begin = index + 6;
index = str.indexOf(PREFIX, begin);
}
sb.append(str.substring(begin));
return sb.toString();
}
/**
* Ascii to native character.
*
* @param str
* ascii string
* @return native character
*/
private static char ascii2Char(String str) {
if (str.length() != 6) {
throw new IllegalArgumentException(
"Ascii string of a native character must be 6 character.");
}
if (!PREFIX.equals(str.substring(0, 2))) {
throw new IllegalArgumentException(
"Ascii string of a native character must start with \"\\u\".");
}
String tmp = str.substring(2, 4);
int code = Integer.parseInt(tmp, 16) << 8;
tmp = str.substring(4, 6);
code += Integer.parseInt(tmp, 16);
return (char) code;
}
}
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