No simple way to convert String to FilePath

[ghost]

When getting arguments as strings from command line there is no function to convert it to a filepath so it can be used to open files. This case is very common, thus should be made easy to do.

[NicolasDP]

I agree, it is missing. Would be nice to have a proper function to convert from a String and from a LString.

In the mean while, FilePath is an instance of IsString so you can use fromString but an error will throw an exception ContiguousPathSeparator (which is unfortunately not exported).