From 3acd3f93d41b83e6d43389dfb234069e90d098dc Mon Sep 17 00:00:00 2001
From: =?utf8?q?David=20=E2=80=98Bombe=E2=80=99=20Roden?=
 <bombe@pterodactylus.net>
Date: Wed, 30 Apr 2014 07:14:58 +0200
Subject: [PATCH] Iterate over the characters of a String like a sane person.

---
 .../net/pterodactylus/irc/util/MessageCleaner.java | 161 ++++++++++-----------
 1 file changed, 74 insertions(+), 87 deletions(-)

diff --git a/src/main/java/net/pterodactylus/irc/util/MessageCleaner.java b/src/main/java/net/pterodactylus/irc/util/MessageCleaner.java
index 4b91e4a..160811e 100644
--- a/src/main/java/net/pterodactylus/irc/util/MessageCleaner.java
+++ b/src/main/java/net/pterodactylus/irc/util/MessageCleaner.java
@@ -21,8 +21,6 @@ import static net.pterodactylus.irc.util.MessageCleaner.Attributes.italics;
 import static net.pterodactylus.irc.util.MessageCleaner.Attributes.reverse;
 import static net.pterodactylus.irc.util.MessageCleaner.Attributes.underline;
 
-import java.io.IOException;
-import java.io.StringReader;
 import java.util.EnumSet;
 import java.util.Set;
 
@@ -71,101 +69,90 @@ public class MessageCleaner {
 	public String clean(String line, Set<Attributes> attributes) {
 		StringBuilder clean = new StringBuilder(line.length());
 
-		StringReader reader = new StringReader(line);
-
-		try {
-			int inColorCode = 0;
-			while (true) {
-				int r = reader.read();
-				if (r == -1) {
-					break;
-				}
-				char c = (char) r;
-				if ((c == 2) && (attributes.contains(Attributes.bold))) {
-					continue;
-				}
-				if ((c == 3) && (attributes.contains(Attributes.color))) {
-					inColorCode = 1;
-					continue;
-				}
-				if ((c == 15) && (attributes.contains(Attributes.clear))) {
-					continue;
-				}
-				if ((c == 22) && attributes.contains(reverse)) {
-					continue;
-				}
-				if ((c == 29) && attributes.contains(italics)) {
-					continue;
-				}
-				if ((c == 31) && attributes.contains(underline)) {
-					continue;
-				}
-				if (inColorCode > 0) {
-					if (inColorCode == 1) {
-						if ((c < '0') || (c > '9')) {
-							inColorCode = 0;
-						} else {
-							if (c == '9') {
-								inColorCode = 8;
-							} else {
-								++inColorCode;
-							}
-							continue;
-						}
-					} else if (inColorCode == 2) {
-						if (c == ',') {
-							inColorCode = 4;
-							continue;
-						}
-						if ((c < '0') || (c > '5')) {
-							inColorCode = 0;
-						} else {
-							++inColorCode;
-							continue;
-						}
-					} else if (inColorCode == 3) {
-						if (c == ',') {
-							++inColorCode;
-							continue;
-						} else {
-							inColorCode = 0;
-						}
-					} else if (inColorCode == 4) {
+		int inColorCode = 0;
+		for (char c : line.toCharArray()) {
+			if ((c == 2) && (attributes.contains(Attributes.bold))) {
+				continue;
+			}
+			if ((c == 3) && (attributes.contains(Attributes.color))) {
+				inColorCode = 1;
+				continue;
+			}
+			if ((c == 15) && (attributes.contains(Attributes.clear))) {
+				continue;
+			}
+			if ((c == 22) && attributes.contains(reverse)) {
+				continue;
+			}
+			if ((c == 29) && attributes.contains(italics)) {
+				continue;
+			}
+			if ((c == 31) && attributes.contains(underline)) {
+				continue;
+			}
+			if (inColorCode > 0) {
+				if (inColorCode == 1) {
+					if ((c < '0') || (c > '9')) {
+						inColorCode = 0;
+					} else {
 						if (c == '9') {
-							inColorCode = 9;
-							continue;
-						} else if ((c < '0') || (c > '9')) {
-							inColorCode = 0;
+							inColorCode = 8;
 						} else {
 							++inColorCode;
-							continue;
 						}
-					} else if (inColorCode == 5) {
+						continue;
+					}
+				} else if (inColorCode == 2) {
+					if (c == ',') {
+						inColorCode = 4;
+						continue;
+					}
+					if ((c < '0') || (c > '5')) {
 						inColorCode = 0;
-						if ((c >= '0') && (c <= '5')) {
-							continue;
-						}
-					} else if (inColorCode == 8) {
-						if (c == '9') {
-							inColorCode = 3;
-							continue;
-						} else if (c == ',') {
-							inColorCode = 4;
-							continue;
-						} else {
-							inColorCode = 0;
-						}
+					} else {
+						++inColorCode;
+						continue;
+					}
+				} else if (inColorCode == 3) {
+					if (c == ',') {
+						++inColorCode;
+						continue;
 					} else {
 						inColorCode = 0;
-						if (c == '9') {
-							continue;
-						}
+					}
+				} else if (inColorCode == 4) {
+					if (c == '9') {
+						inColorCode = 9;
+						continue;
+					} else if ((c < '0') || (c > '9')) {
+						inColorCode = 0;
+					} else {
+						++inColorCode;
+						continue;
+					}
+				} else if (inColorCode == 5) {
+					inColorCode = 0;
+					if ((c >= '0') && (c <= '5')) {
+						continue;
+					}
+				} else if (inColorCode == 8) {
+					if (c == '9') {
+						inColorCode = 3;
+						continue;
+					} else if (c == ',') {
+						inColorCode = 4;
+						continue;
+					} else {
+						inColorCode = 0;
+					}
+				} else {
+					inColorCode = 0;
+					if (c == '9') {
+						continue;
 					}
 				}
-				clean.append(c);
 			}
-		} catch (IOException ioe1) {
-			/* StringReader will never throw. */
+			clean.append(c);
 		}
 
 		return clean.toString();
-- 
2.7.4