}
sb.append("(");
sb.append(obscenities.get(x));
sb.append(")");
}
obscenityPattern = Pattern.compile(sb.toString(), Pattern.CASE_INSENSITIVE);
}
/**
* Returns true if the data contain an obscenity otherwise returns false
*/
public boolean containsObscenities(String data) {
Matcher m = obscenityPattern.matcher(data);
return m.find();
}
/**
* Obfuscate all obscenities in a String
*/
public String obfuscateObscenities(String data) {
Matcher m = obscenityPattern.matcher(data);
StringBuffer out = new StringBuffer(data.length());
while (m.find()) {
if (m.group(0) != null) {
m.appendReplacement(out, rot13(m.group(0)));
}
}
m.appendTail(out);
return out.toString();
}
/**
* Rot13 encode a String value.
* @param in
* @return Encoded string
*/
private String rot13(String in) {
char[] chars = in.toCharArray();
for (int x = 0; x < chars.length; x++) {
char c = chars[x];
if (c >= 'a' && c <= 'm')
c += 13;
else if (c >= 'n' && c <= 'z')
c -= 13;
else if (c >= 'A' && c <= 'M')
c += 13;
else if (c >= 'A' && c <= 'Z') c -= 13;
chars[x] = c;
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