Java Native to ASCII native2ascii(String line)

Description

Replaces non-ASCII characters with their Unicode-Escapes.

License

Apache License

Parameter

Parameter	Description
line	the input line

Return

the translated line

Declaration

public static String native2ascii(String line) 

Method Source Code

//package com.java2s;
/*/*  w w w  . j  a v a  2s . c  o  m*/
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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.
 *
 */

public class Main {
    private static final int MAX_ASCII = 127;

    /**
     * Replaces non-ASCII characters with their Unicode-Escapes.
     * <p>Expects to be called once per line if applied to a file.</p>
     * @param line the input line
     * @return the translated line
     */
    public static String native2ascii(String line) {
        StringBuilder sb = new StringBuilder();
        for (char c : line.toCharArray()) {
            if (c <= MAX_ASCII) {
                sb.append(c);
            } else {
                sb.append("\\u");
                String encoded = Integer.toHexString(c);
                for (int i = encoded.length(); i < 4; i++) {
                    sb.append("0");
                }
                sb.append(encoded);
            }
        }
        return sb.toString();
    }
}

Related

1. native2ascii(String code)
2. native2Ascii(String s)
3. native2AscII(String str)
4. nativeToAscii(String input)