GOB: Add setExtension()

svn-id: r55639

2 files changed, 20 insertions, 0 deletions

diff --git a/engines/gob/util.cpp b/engines/gob/util.cpp
index fe45adb702..889833ad47 100644
--- a/engines/gob/util.cpp
+++ b/engines/gob/util.cpp
@@ -518,6 +518,23 @@ void Util::deleteList(List *list) {
 	delete list;
 }
 
+char *Util::setExtension(char *str, const char *ext) {
+	char *dot = strrchr(str, '.');
+	if (dot)
+		*dot = '\0';
+
+	strcat(str, ext);
+	return str;
+}
+
+Common::String Util::setExtension(const Common::String &str, const Common::String &ext) {
+	const char *dot = strrchr(str.c_str(), '.');
+	if (dot)
+		return Common::String(str.c_str(), dot - str.c_str()) + ext;
+
+	return str + ext;
+}
+
 /* NOT IMPLEMENTED */
 void Util::checkJoystick() {
 	_vm->_global->_useJoystick = 0;
diff --git a/engines/gob/util.h b/engines/gob/util.h
index 6968db1a27..262bff0a7a 100644
--- a/engines/gob/util.h
+++ b/engines/gob/util.h
@@ -131,6 +131,9 @@ public:
 	static void listDropFront(List *list);
 	static void deleteList(List *list);
 
+	static char *setExtension(char *str, const char *ext);
+	static Common::String setExtension(const Common::String &str, const Common::String &ext);
+
 	Util(GobEngine *vm);
 
 protected: