Java String Unquote unquoteString(String s)

Description

Unquote string and remove escape characters inside the script

License

Apache License

Declaration

public static String unquoteString(String s) 

Method Source Code

//package com.java2s;
/**//www  .j  a v  a2 s  . co  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 {
    /**
     * Unquote string and remove escape characters inside the script 
     */
    public static String unquoteString(String s) {
        if (s == null) {
            return null;
        }

        int len = s.length();
        StringBuffer s2 = new StringBuffer(len);

        for (int i = 0; i < len; i++) {
            char ch = s.charAt(i);
            char ch2 = (i < len - 1) ? s.charAt(i + 1) : 0;

            if ((i == 0 || i == len - 1) && (ch == '\'' || ch == '"'))
                continue;
            else
            // \' and '' escape sequences
            if ((ch == '\\' && ch2 == '\'') || (ch == '\'' && ch2 == '\''))
                continue;

            s2.append(ch);
        }

        return s2.toString();
    }

    /**
     * Convert String array to a string with the specified delimiter
     */
    public static String toString(String[] a, char del) {
        StringBuilder s = new StringBuilder();
        for (int i = 0; i < a.length; i++) {
            if (i > 0) {
                s.append(del);
            }
            s.append(a[i]);
        }
        return s.toString();
    }
}

Related

1. unQuoteIdentifier(String identifier, String quoteChar)
2. unquoteImpl(String s, char delim)
3. unquotePath(String path)
4. unquoteS(String s)
5. unquoteString(final String input)
6. unquoteString(String s)
7. unquoteString(String s)
8. unquoteString(String value)
9. unquoteText(String s)