[luatex] Off topic: A quiz

[Hans Hagen]

On 12/12/2013 9:40 AM, Patrick Gundlach wrote:
> Hi all,
>
> this has to do with the discussion we had about the selene unicode library a few years ago. Here is a quiz for you. You might think about it first, before trying it out.
>
> ----------------------------------
> match = unicode.utf8.match
>
> if match("à","%s") then
>      print("space")
> else
>      print("not a space")
> end
>
> if match("á","%s") then
>      print("space")
> else
>      print("not a space")
> end
> ----------------------------------
>
>
> Now, what is printed?

à : C3 A0
á : C3 A1

A0 == nbsp

when you make a more complex pattern it's okay so i think it's an 
optimization issue: "%s" take another route, so a bug in selene

Hans

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