Java String Quote quoteJsonLib(String string)

Description

from net.sf.json.util.JSONUtils

License

Open Source License

Parameter

Parameter	Description
string	a parameter

Return

String

Declaration

public static String quoteJsonLib(String string) 

Method Source Code

//package com.java2s;

public class Main {
    /**/*from www.j  av  a  2s.  com*/
     * <p>from net.sf.json.util.JSONUtils</p>
     *  
     * @param string
     * @return String
     */
    public static String quoteJsonLib(String string) {
        char b;
        char c = 0;
        int i;
        int len = string.length();
        StringBuffer sb = new StringBuffer(len * 2);
        String t;
        char[] chars = string.toCharArray();
        char[] buffer = new char[1030];
        int bufferIndex = 0;
        sb.append('"');
        for (i = 0; i < len; i += 1) {
            if (bufferIndex > 1024) {
                sb.append(buffer, 0, bufferIndex);
                bufferIndex = 0;
            }
            b = c;
            c = chars[i];
            switch (c) {
            case '\\':
            case '"':
                buffer[bufferIndex++] = '\\';
                buffer[bufferIndex++] = c;
                break;
            case '/':
                if (b == '<') {
                    buffer[bufferIndex++] = '\\';
                }
                buffer[bufferIndex++] = c;
                break;
            default:
                if (c < ' ') {
                    switch (c) {
                    case '\b':
                        buffer[bufferIndex++] = '\\';
                        buffer[bufferIndex++] = 'b';
                        break;
                    case '\t':
                        buffer[bufferIndex++] = '\\';
                        buffer[bufferIndex++] = 't';
                        break;
                    case '\n':
                        buffer[bufferIndex++] = '\\';
                        buffer[bufferIndex++] = 'n';
                        break;
                    case '\f':
                        buffer[bufferIndex++] = '\\';
                        buffer[bufferIndex++] = 'f';
                        break;
                    case '\r':
                        buffer[bufferIndex++] = '\\';
                        buffer[bufferIndex++] = 'r';
                        break;
                    default:
                        t = "000" + Integer.toHexString(c);
                        int tLength = t.length();
                        buffer[bufferIndex++] = '\\';
                        buffer[bufferIndex++] = 'u';
                        buffer[bufferIndex++] = t.charAt(tLength - 4);
                        buffer[bufferIndex++] = t.charAt(tLength - 3);
                        buffer[bufferIndex++] = t.charAt(tLength - 2);
                        buffer[bufferIndex++] = t.charAt(tLength - 1);
                    }
                } else {
                    buffer[bufferIndex++] = c;
                }
            }
        }
        sb.append(buffer, 0, bufferIndex);
        sb.append('"');
        return sb.toString();
    }

    public static String toString(Object obj) {
        return toString(obj, "");
    }

    public static String toString(Object obj, String defaultVal) {
        if (obj == null) {
            return defaultVal;
        }
        return obj.toString();
    }

    public static String toString(String[] strs) {
        String strWithComma = "";
        if (strs == null) {
            return "";
        } else {
            for (int i = 0; i < strs.length; i++) {
                if (i == 0) {
                    strWithComma = strs[i];
                } else {
                    strWithComma += "," + strs[i];
                }
            }
        }
        return strWithComma;
    }
}

Related

1. quoteIt(String orig)
2. quoteJava(String s)
3. quoteJavascriptString(String s)
4. quoteJavaString(String s)
5. quoteJavaString(String s)
6. quoteLiteralAsRegexp(String text)
7. quoteLocation(String location)
8. quoteMdxIdentifier(String ident)
9. quoteMe(String unquoted)