Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    /*** This method ensures that the output String has only     
     * * valid XML unicode characters as specified by the     
     * * XML 1.0 standard. For reference, please see     
     * * <a href="http://www.w3.org/TR/2000/REC-xml-20001006#NT-Char">the     
     * * standard</a>. This method will return an empty     
     * * String if the input is null or empty.     
     * * @param in The String whose non-valid characters we want to remove.     
     * * @return The in String, stripped of non-valid characters.    
     *  */
    public static String stripNonValidXMLCharacters(String s) {

        StringBuilder out = new StringBuilder(); // Used to hold the output.

        int codePoint; // Used to reference the current character.

        //String ss = "\ud801\udc00"; // This is actualy one unicode character, represented by two code units!!!.
        int i = 0;

        while (i < s.length()) {
            codePoint = s.codePointAt(i); // This is the unicode code of the character.
            if ((codePoint == 0x9) || // Consider testing larger ranges first to improve speed. 

                    (codePoint == 0xA) ||

                    (codePoint == 0xD) ||

                    ((codePoint >= 0x20) && (codePoint <= 0xD7FF)) ||

                    ((codePoint >= 0xE000) && (codePoint <= 0xFFFD)) ||

                    ((codePoint >= 0x10000) && (codePoint <= 0x10FFFF))) {

                out.append(Character.toChars(codePoint));

            }

            i += Character.charCount(codePoint); // Increment with the number of code units(java chars) needed to represent a Unicode char. 

        }

        return out.toString();

    }
}