See
http://www.mozart-oz.org/documentation/notation/node2.html#chapter.lexical
at the bottom of the page: "2.10 Characters".
Cheers,
raph
On Sat, Oct 4, 2008 at 11:33 PM, Chris Rathman <[EMAIL PROTECTED]>wrote:
> I can't find anywhere in Oz that describes syntactic sugar for character
> constants. If I want to examine a single character in a character string, I
> can use numbers for pattern matching:
>
> proc {Test1 C}
> case C
> of 97 then {Browse a}
> [] 98 then {Browse b}
> [] 99 then {Browse c}
> end
> end
> {Test1 ("abc").1}
>
> and that will work. But I lose the nicety of knowing that 97, 98, and 99
> are really the character 'a'. Works, but it means I'd have to resort to
> using comments to describe that intent.
>
> Alternatively, I could convert a single character back into a string:
>
> proc {Test2 C}
> case [C]
> of "a" then {Browse a}
> [] "b" then {Browse b}
> [] "c" then {Browse c}
> else {Browse nomatch#C}
> end
> end
> {Test2 ("abc").1}
>
> But that would seem to be inefficient (and slightly obtuse).
>
> Does Oz support syntax for characters? (As an analogy, SML uses #"a").
>
> Thanks,
> Chris
>
>
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