Java XML Quote quoteXmlContent(String x)

Description

Replace special characters with entities for XML attributes.

License

Open Source License

Parameter

Parameter	Description
x	string to quote

Return

equivilent string using entities for any special chars

Declaration

static public String quoteXmlContent(String x) 

Method Source Code

//package com.java2s;

public class Main {
    private static final char[] xmlInC = { '&', '<', '>' };
    private static final String[] xmlOutC = { "&amp;", "&lt;", "&gt;" };

    /**//  w  ww  . ja v  a2  s  . co m
     * Replace special characters with entities for XML attributes.
     * special: '&', '<', '>', '\'', '"', '\r', '\n'
     *
     * @param x string to quote
     * @return equivilent string using entities for any special chars
     */
    static public String quoteXmlContent(String x) {
        return replace(x, xmlInC, xmlOutC);
    }

    /**
     * Replace any char "out" in s with "in".
     *
     * @param s   string to replace
     * @param out repalce this character
     * @param in  with this string
     * @return modified string if needed
     */
    static public String replace(String s, char out, String in) {
        if (s.indexOf(out) < 0) {
            return s;
        }

        // gotta do it
        StringBuilder sb = new StringBuilder(s);
        replace(sb, out, in);
        return sb.toString();
    }

    /**
     * Replace all ocurrences of any char in replaceChar with corresponding String in replaceWith
     *
     * @param x           operate on this string
     * @param replaceChar get rid of these
     * @param replaceWith replace with these
     * @return resulting string
     */
    static public String replace(String x, char[] replaceChar,
            String[] replaceWith) {
        // common case no replacement
        boolean ok = true;
        for (int i = 0; i < replaceChar.length; i++) {
            int pos = x.indexOf(replaceChar[i]);
            ok = (pos < 0);
            if (!ok) {
                break;
            }
        }
        if (ok) {
            return x;
        }

        // gotta do it
        StringBuilder sb = new StringBuilder(x);
        for (int i = 0; i < replaceChar.length; i++) {
            int pos = x.indexOf(replaceChar[i]);
            if (pos >= 0) {
                replace(sb, replaceChar[i], replaceWith[i]);
            }
        }

        return sb.toString();
    }

    /**
     * Replaces all occurrences of "pattern" in "string" with "value"
     *
     * @param string  string to munge
     * @param pattern pattern to replace
     * @param value   replacement value
     * @return munged string
     */
    public static String replace(String string, String pattern, String value) {
        if (pattern.length() == 0)
            return string;

        StringBuilder returnValue = new StringBuilder();
        int patternLength = pattern.length();
        while (true) {
            int idx = string.indexOf(pattern);
            if (idx < 0) {
                break;
            }
            returnValue.append(string.substring(0, idx));
            if (value != null) {
                returnValue.append(value);
            }
            string = string.substring(idx + patternLength);
        }
        returnValue.append(string);
        return returnValue.toString();
    }

    /**
     * Replace any char "out" in sb with String "in".
     *
     * @param sb  StringBuilder to replace
     * @param out repalce this character
     * @param in  with this string
     */
    static public void replace(StringBuilder sb, char out, String in) {
        for (int i = 0; i < sb.length(); i++) {
            if (sb.charAt(i) == out) {
                sb.replace(i, i + 1, in);
                i += in.length() - 1;
            }
        }
    }

    /**
     * Replace any of the characters from out with corresponding character from in
     *
     * @param sb  the StringBuilder
     * @param out get rid of any of these characters
     * @param in  replacing with the character at same index
     */
    static public void replace(StringBuilder sb, String out, String in) {
        for (int i = 0; i < sb.length(); i++) {
            int c = sb.charAt(i);
            for (int j = 0; j < out.length(); j++) {
                if (out.charAt(j) == c)
                    sb.setCharAt(i, in.charAt(j));
            }
        }
    }
}

Related

1. quoteXML(String string)
2. quoteXML(String string)
3. quoteXML(String xmlFragment)
4. quoteXMLValue(final Object o)
5. quoteXMLValue(Object o)