1 files changed, 112 insertions, 0 deletions
diff --git a/Swift/Controllers/Chat/ChatMessageParser.cpp b/Swift/Controllers/Chat/ChatMessageParser.cpp
new file mode 100644
index 0000000..ce184ea
--- /dev/null
+++ b/Swift/Controllers/Chat/ChatMessageParser.cpp
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2013 Kevin Smith
+ * Licensed under the GNU General Public License v3.
+ * See Documentation/Licenses/GPLv3.txt for more information.
+ */
+
+#include <Swift/Controllers/Chat/ChatMessageParser.h>
+
+#include <vector>
+#include <utility>
+
+#include <boost/smart_ptr/make_shared.hpp>
+#include <boost/algorithm/string.hpp>
+
+#include <Swiften/Base/Regex.h>
+#include <Swiften/Base/foreach.h>
+
+#include <SwifTools/Linkify.h>
+
+
+namespace Swift {
+
+	ChatMessageParser::ChatMessageParser(const std::map<std::string, std::string>& emoticons) : emoticons_(emoticons) {
+
+	}
+
+	typedef std::pair<std::string, std::string> StringPair;
+
+	ChatWindow::ChatMessage ChatMessageParser::parseMessageBody(const std::string& body) {
+		ChatWindow::ChatMessage parsedMessage;
+		std::string remaining = body;
+		/* Parse one, URLs */
+		while (!remaining.empty()) {
+			bool found = false;
+			std::pair<std::vector<std::string>, size_t> links = Linkify::splitLink(remaining);
+			remaining = "";
+			for (size_t i = 0; i < links.first.size(); i++) {
+				const std::string& part = links.first[i];
+				if (found) {
+					// Must be on the last part, then
+					remaining = part;
+				}
+				else {
+					if (i == links.second) {
+						found = true;
+						parsedMessage.append(boost::make_shared<ChatWindow::ChatURIMessagePart>(part));
+					}
+					else {
+						parsedMessage.append(boost::make_shared<ChatWindow::ChatTextMessagePart>(part));
+					}
+				}
+			}
+		}
+		
+
+
+		std::string regexString;
+		/* Parse two, emoticons */
+		foreach (StringPair emoticon, emoticons_) {
+			/* Construct a regexp that finds an instance of any of the emoticons inside a group */
+			regexString += regexString.empty() ? "(" : "|";
+			regexString += Regex::escape(emoticon.first);
+		}
+		if (!regexString.empty()) {
+			regexString += ")";
+			boost::regex emoticonRegex(regexString);
+
+			ChatWindow::ChatMessage newMessage;
+			foreach (boost::shared_ptr<ChatWindow::ChatMessagePart> part, parsedMessage.getParts()) {
+				boost::shared_ptr<ChatWindow::ChatTextMessagePart> textPart;
+				if ((textPart = boost::dynamic_pointer_cast<ChatWindow::ChatTextMessagePart>(part))) {
+					try {
+						boost::match_results<std::string::const_iterator> match;
+						const std::string& text = textPart->text;
+						std::string::const_iterator start = text.begin();
+						while (regex_search(start, text.end(), match, emoticonRegex)) {
+							std::string::const_iterator matchStart = match[0].first;
+							std::string::const_iterator matchEnd = match[0].second;
+							if (start != matchStart) {
+								/* If we're skipping over plain text since the previous emoticon, record it as plain text */
+								newMessage.append(boost::make_shared<ChatWindow::ChatTextMessagePart>(std::string(start, matchStart)));
+							}
+							boost::shared_ptr<ChatWindow::ChatEmoticonMessagePart> emoticonPart = boost::make_shared<ChatWindow::ChatEmoticonMessagePart>();
+							std::map<std::string, std::string>::const_iterator emoticonIterator = emoticons_.find(match.str());
+							assert (emoticonIterator != emoticons_.end());
+							const StringPair& emoticon = *emoticonIterator;
+							emoticonPart->imagePath = emoticon.second;
+							emoticonPart->alternativeText = emoticon.first;
+							newMessage.append(emoticonPart);
+							start = matchEnd;
+						}
+						if (start != text.end()) {
+							/* If there's plain text after the last emoticon, record it */
+							newMessage.append(boost::make_shared<ChatWindow::ChatTextMessagePart>(std::string(start, text.end())));
+						}
+
+					}
+					catch (std::runtime_error) {
+						/* Basically too expensive to compute the regex results and it gave up, so pass through as text */
+						newMessage.append(part);
+					}
+				}
+				else {
+					newMessage.append(part);
+				}
+			}
+			parsedMessage = newMessage;
+
+		}
+		return parsedMessage;
+	}
+}