More robust way to handle previous fix. Put the string manipulations into generic functions in common.cpp

src/drivers/win/common.cpp

@@ -60,3 +60,34 @@ std::string GetPath(std::string filename)
 {
 	return filename.substr(0,filename.find_last_of("/\\") + 1);
 }
+
+bool IsRelativePath(char* name)
+{
+	if (name[0] == '.')
+		if (name[1] == '\\') return true;
+		else if (name[1] == '.' && name[2] == '\\') return true;
+	return false;
+}
+
+bool IsRelativePath(const char* name)
+{
+	if (name[0] == '.')
+		if (name[1] == '\\') return true;
+		else if (name[1] == '.' && name[2] == '\\') return true;
+	return false;
+}
+
+bool IsRelativePath(std::string name)
+{
+	if (name[0] == '.')
+		if (name[1] == '\\') return true;
+		else if (name[1] == '.' && name[2] == '\\') return true;
+	return false;
+}
+
+//Precondition: IsRelativePath() == true
+std::string ConvertRelativePath(std::string name)
+{
+	extern std::string BaseDirectory;
+	return BaseDirectory + '\\' + name.substr(2, name.length());
+}

src/drivers/win/common.h

@@ -55,4 +55,8 @@ void WindowBoundsCheckNoResize(int &windowPosX, int &windowPosY, long windowRigh
 void AddExtensionIfMissing(char * name,unsigned int maxsize,const char * extension);
 void AddExtensionIfMissing(std::string &name,const char * extension);
 std::string GetPath(std::string filename);
+bool IsRelativePath(char* name);
+bool IsRelativePath(const char* name);
+bool IsRelativePath(std::string name);
+std::string ConvertRelativePath(std::string name);
 #endif

src/movie.cpp

@@ -37,6 +37,7 @@
 
 #ifdef WIN32
 #include <windows.h>
+#include "./drivers/win/common.h"
 extern void AddRecentMovieFile(const char *filename);
 #endif
 
@@ -919,10 +920,11 @@ bool FCEUI_LoadMovie(const char *fname, bool _read_only, bool tasedit, int _paus
 #ifdef WIN32
 	//Fix relative path if necessary and then add to the recent movie menu
 	extern std::string BaseDirectory;
+
 	string name = fname;
-	if (name[0] == '.' && name[1] == '\\')
+	if (IsRelativePath(fname))
 	{
-		name = BaseDirectory + '\\' + name.substr(2, name.length());
+		name = ConvertRelativePath(name);
 	}
 	AddRecentMovieFile(name.c_str());
 #endif