Which option is faster...

[jicman]

On Monday, 5 August 2013 at 14:27:43 UTC, dennis luehring wrote:
> did you benchmarked your current szenario - how do you know 
> that this is the slow part - or are you working on an 
> only-extension-compare-tool?
>
> btw: they are both equal and slow - and full of partly 
> code-duplication
> std.string.tolower(fext[0]) multiple times, i hope your list 
> isn't going much longer

Ok, how would you make it faster?