Regex filtering, gotta love it

Regex.java

package net.darkseraphim.chat.filter;

import org.apache.commons.lang.StringUtils;

import java.util.regex.Pattern;

/**
 * @author DarkSeraphim
 */
public class Regex
{

    private final Pattern pattern;


    public Regex(String word)
    {
        StringBuilder regexBuilder = new StringBuilder(RegexConstants.getSpacing());
        for(char c : word.toCharArray())
        {
            regexBuilder.append(RegexConstants.getRegexReplacement(c))
                        .append(RegexConstants.getSpacing());
        }
        regexBuilder.append(RegexConstants.getSpacing());
        this.pattern = Pattern.compile(regexBuilder.toString(), Pattern.CASE_INSENSITIVE);
    }

    public boolean match(String word)
    {
        // Optional bypass for star usage
        //int starCount = 0;
        //for(char c : word.toCharArray())
        //    if(c == '*') starCount++;
        //if((double)starCount / (double)word.length() > 0.75)
        //    return word;
        //System.out.println(this.pattern.pattern());
        if(this.pattern.matcher(word).matches())
            return true;
        return false;
    }

    public static void main(String[] args)
    {
        boolean f = new Regex("bitch").match("B1tch");
        System.out.println(f);
    }

}

RegexConstants.java

package net.darkseraphim.chat.filter;

import java.util.HashMap;
import java.util.Map;

/**
 * @author DarkSeraphim
 */
public class RegexConstants
{
    private Map<Character, String> replacements = new HashMap<Character, String>();

    {
        replacements.put('a', "[\\*|a|4|ä|à|ã|á|â|@|∂|ci|α|/\\\\|/\\-\\\\|\\^]");
        replacements.put('b', "[\\*b86]");
        replacements.put('c', "[\\*|c|z|k|\\(|\\<|\\[|¢|©|ς|\\{]");
        replacements.put('d', "[\\*|d|[\\[\\{\\|]{1,2}]");
        replacements.put('e', "[\\*eëéè3]");
        replacements.put('f', "[\\*fv]");
        replacements.put('g', "[\\*g9]");
        replacements.put('h', "[\\*h]");
        replacements.put('i', "[\\*i1ïíìî\\|!]");
        replacements.put('j', "[\\*j]");
        replacements.put('k', "[\\*|k|\\|\\<|c]");
        replacements.put('l', "[\\*l1!]");
        replacements.put('m', "[\\*m]");
        replacements.put('n', "[\\*nñ]");
        replacements.put('o', "[\\*oöóòõØ0]");
        replacements.put('p', "[\\*p]");
        replacements.put('q', "[\\*q]");
        replacements.put('r', "[\\*r]");
        replacements.put('s', "[\\*sz25\\$]");
        replacements.put('t', "[\\*t7]");
        replacements.put('u', "[\\*uüúùû]");
        replacements.put('v', "[\\*vfw]");
        replacements.put('w', "[\\*wv]");
        replacements.put('x', "\\*|x|ks|iks");
        replacements.put('y', "[\\*yÿý]");
        replacements.put('z', "[\\*zs25\\$]");
    }

    private static final RegexConstants instance = new RegexConstants();

    public static String getRegexReplacement(char c)
    {
        return instance.replacements.containsKey(c) ? instance.replacements.get(c) : Character.toString(c);
    }

    public static String getSpacing()
    {
        return "[\\\\/\\{\\[\\. ,\\|\\-_!\\]\\}]*";
    }
}