translations: multi-line and special symbols support

utils/qt_support/ts_file.cpp

@@ -71,9 +71,26 @@ TSFile::Content TSFile::read(const PIString & path) {
 	PIIOTextStream ts(&f);
 	Context * cc = nullptr;
 	Message msg;
-	int phase = 0;
+	int phase         = 0;
+	bool multi_source = false, multi_translation = false;
 	while (!ts.isEnd()) {
 		auto line = ts.readLine().trim();
+		if (multi_source) {
+			if (line.endsWith("</source>")) {
+				line.cutRight(9);
+				multi_source = false;
+			}
+			msg.source += "\n" + unmask(line);
+			continue;
+		}
+		if (multi_translation) {
+			if (line.endsWith("</translation>")) {
+				line.cutRight(14);
+				multi_translation = false;
+			}
+			msg.translation += "\n" + unmask(line);
+			continue;
+		}
 		switch (phase) {
 		case 0:
 			if (line == "<context>") phase = 1;
@@ -97,7 +114,11 @@ TSFile::Content TSFile::read(const PIString & path) {
 				if (cc) cc->messages[msg.source] = msg;
 				phase = 2;
 			} else if (line.startsWith("<source>")) {
-				line.cutLeft(8).cutRight(9);
+				line.cutLeft(8);
+				if (line.endsWith("</source>"))
+					line.cutRight(9);
+				else
+					multi_source = true;
 				msg.source = unmask(line);
 			} else if (line.startsWith("<location")) {
 				PIString trs = line.takeRange('<', '>').cutLeft(8);
@@ -117,7 +138,10 @@ TSFile::Content TSFile::read(const PIString & path) {
 					PIString v = trs.takeRange('\"', '\"');
 					if (t == "type") msg.type = v;
 				}
-				line.cutRight(14);
+				if (line.endsWith("</translation>"))
+					line.cutRight(14);
+				else
+					multi_translation = true;
 				msg.translation = unmask(line);
 			}
 			break;