From 2302122d8ed0ea975f99138e2ed2b07d3f504b8a Mon Sep 17 00:00:00 2001
From: Daniel Gultsch <daniel@gultsch.de>
Date: Sun, 26 Mar 2017 12:29:12 +0200
Subject: [PATCH] made a few exceptions to quote parser for emoticons and
 quotes

---
 .../ui/adapter/MessageAdapter.java            |  3 +-
 .../siacs/conversations/utils/UIHelper.java   | 48 ++++++++++++++++---
 2 files changed, 43 insertions(+), 8 deletions(-)

diff --git a/src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java b/src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java
index 3e917d945..08ce18204 100644
--- a/src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java
+++ b/src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java
@@ -352,7 +352,8 @@ public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextVie
 			char current = body.length() > i ? body.charAt(i) : '\n';
 			if (lineStart == -1) {
 				if (previous == '\n') {
-					if ((current == '>' && UIHelper.isPositionFollowedByQuoteableCharacter(body,i)) || current == '\u00bb') {
+					if ((current == '>' && UIHelper.isPositionFollowedByQuoteableCharacter(body,i))
+							|| current == '\u00bb' && !UIHelper.isPositionFollowedByQuote(body,i)) {
 						// Line start with quote
 						lineStart = i;
 						if (quoteStart == -1) quoteStart = i;
diff --git a/src/main/java/eu/siacs/conversations/utils/UIHelper.java b/src/main/java/eu/siacs/conversations/utils/UIHelper.java
index b16b97d49..f1f8d0066 100644
--- a/src/main/java/eu/siacs/conversations/utils/UIHelper.java
+++ b/src/main/java/eu/siacs/conversations/utils/UIHelper.java
@@ -8,7 +8,6 @@ import android.widget.PopupMenu;
 
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
-import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Calendar;
 import java.util.Date;
@@ -25,8 +24,6 @@ import eu.siacs.conversations.entities.Message;
 import eu.siacs.conversations.entities.MucOptions;
 import eu.siacs.conversations.entities.Presence;
 import eu.siacs.conversations.entities.Transferable;
-import eu.siacs.conversations.ui.XmppActivity;
-import eu.siacs.conversations.xmpp.chatstate.ChatState;
 import eu.siacs.conversations.xmpp.jid.Jid;
 
 public class UIHelper {
@@ -233,7 +230,8 @@ public class UIHelper {
 	}
 
 	public static boolean isPositionFollowedByQuoteableCharacter(CharSequence body, int pos) {
-		return !isPositionFollowedByNumber(body, pos) && !isPositionFollowedByBigGrin(body,pos);
+		return !isPositionFollowedByNumber(body, pos)
+				&& !isPositionFollowedByEmoticon(body,pos);
 	}
 
 	private static boolean isPositionFollowedByNumber(CharSequence body, int pos) {
@@ -251,9 +249,45 @@ public class UIHelper {
 		return previousWasNumber;
 	}
 
-	private static boolean isPositionFollowedByBigGrin(CharSequence body, int pos) {
-		return body.length() <= pos + 1
-				|| ((body.charAt(pos + 1) == '<') && (body.length() == pos + 2 || Character.isWhitespace(body.charAt(pos + 2))));
+	private static boolean isPositionFollowedByEmoticon(CharSequence body, int pos) {
+		if (body.length() <= pos +1) {
+			return false;
+		} else {
+			final char first = body.charAt(pos +1);
+			return first == ';'
+				|| first == ':'
+				|| smallerThanBeforeWhitespace(body,pos+1);
+		}
+	}
+
+	private static boolean smallerThanBeforeWhitespace(CharSequence body, int pos) {
+		for(int i = pos; i < body.length(); ++i) {
+			final char c = body.charAt(i);
+			if (Character.isWhitespace(c)) {
+				return false;
+			} else if (c == '<') {
+				return body.length() == i + 1 || Character.isWhitespace(body.charAt(i + 1));
+			}
+		}
+		return false;
+	}
+
+	public static boolean isPositionFollowedByQuote(CharSequence body, int pos) {
+		if (body.length() <= pos + 1 || Character.isWhitespace(body.charAt(pos+1))) {
+			return false;
+		}
+		boolean previousWasWhitespace = false;
+		for (int i = pos +1; i < body.length(); i++) {
+			char c = body.charAt(i);
+			if (c == '\n' || c == '»') {
+				return false;
+			} else if (c == '«' && !previousWasWhitespace) {
+				return true;
+			} else {
+				previousWasWhitespace = Character.isWhitespace(c);
+			}
+		}
+		return false;
 	}
 
 	public static String getDisplayName(MucOptions.User user) {