CollapsePath(".") -> "."

stepmania/src/RageFile.cpp

@@ -30,6 +30,22 @@ CString FixSlashes( CString sPath )
     return sPath;
 }
 
+/*
+ * Keep trailing slashes, since that can be used to illustrate that a path always
+ * represents a directory.  Not sure if we should always keep leading "." (we do
+ * because it's simpler), but be sure to keep the "." if it's all that's there, so
+ * collapsing "." doesn't result in "". 
+ *
+ * foo/bar -> foo/bar
+ * foo/bar/ -> foo/bar/
+ * foo///bar/// -> foo/bar/
+ * foo/bar/./baz -> foo/bar/baz
+ * foo/bar/../baz -> foo/baz
+ * ./foo -> foo
+ * ./ -> .
+ * ./// -> .
+ */
+
 void CollapsePath( CString &sPath )
 {
 	/* Don't ignore empty: we do want to keep trailing slashes. */
@@ -50,7 +66,7 @@ void CollapsePath( CString &sPath )
 			as.erase( as.begin()+i );
 			i -= 1;
 		}
-		else if( as[i] == "." )
+		else if( as[i] == "." && i != 0 )
 		{
 			as.erase( as.begin()+i );
 			i -= 1;