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package f00f.net.irc.martyr.util;
import java.text.CharacterIterator;
import java.text.StringCharacterIterator;
import java.util.ArrayList;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
/**
* @author Daniel Henninger
*/
public class IRCStringUtils
{
/**
* Returns the message with all control characters stripped from it.
*
* @param msg Message to remove control chars from.
* @return Stripped form of message.
*/
public static String stripControlChars(String msg)
{
Pattern pa = Pattern.compile("\u0003\\p{Digit}\\p{Digit}");
Matcher ma = pa.matcher(msg);
Pattern pb = Pattern.compile("\\p{Cntrl}");
Matcher mb = pb.matcher(ma.replaceAll(""));
return mb.replaceAll("");
}
/**
* Returns the message with all formatting characters converted into associated html characters.
*
* TODO: Should actually parse colors.
* @param msg Message to convert to HTML format.
* @return Message in HTML format.
*/
public static String convertToHTML(String msg)
{
CharacterIterator ci = new StringCharacterIterator(msg);
String htmlStr = "";
ArrayList<String> formatList = new ArrayList<String>();
for (char c = ci.first(); c != CharacterIterator.DONE; c = ci.next()) {
if (c == '\u0002') {
if (formatList.contains("</b>")) {
formatList.remove("</b>");
htmlStr += "</b>";
}
else {
formatList.add("</b>");
htmlStr += "<b>";
}
}
else if (c == '\u001F') {
if (formatList.contains("</u>")) {
formatList.remove("</u>");
htmlStr += "</u>";
}
else {
formatList.add("</u>");
htmlStr += "<u>";
}
}
else if (c == '\u0016') {
if (formatList.contains("</i>")) {
formatList.remove("</i>");
htmlStr += "</i>";
}
else {
formatList.add("</i>");
htmlStr += "<i>";
}
}
else if (c == '\u000F' || c == '\u0015') {
for (String f : formatList) {
htmlStr += f;
}
formatList.clear();
}
else {
htmlStr += c;
}
}
for (String f : formatList) {
htmlStr += f;
}
formatList.clear();
return stripControlChars(htmlStr);
}
}
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