[Haskell-cafe] Valid Haskell characters

[Deborah Goldsmith]

All characters with general category Lu have the property Uppercase,  
but the converse is not true.

Deborah

On Aug 25, 2008, at 8:27 PM, Richard A. O'Keefe wrote:

>
> On 26 Aug 2008, at 1:31 pm, Deborah Goldsmith wrote:
>
>> You can't determine Unicode character properties by analyzing the  
>> names of the characters.
>
> However, the OP *does* have a copy of the UnicodeData...txt file,
> and you *can* determine the relevant Unicode character properties  
> from that.
>
> For example, consider the entry for space:
> 0020;SPACE;Zs;0;WS;;;;;N;;;;;
>           ^^
> The Zs bit says it's a white space character
> (Zs: separator/space, Zl: separator/line, Zp:
> separator/paragraph).
>
> Or look at capital A:
> 0041;LATIN CAPITAL LETTER A;Lu;0;L;;;;;N;;;;0061;^
>                            ^^
> The Lu bit says it's a L(etter) that is u(pper case).
>
> Upper case: Lu, lower case: Ll, title case: Lt,
> modifier letter: Lm, other letter: Lo, digit: Nd,
> ...
>
> If memory serves me correctly, this is explained in the
> UnicodeData.html file, under a heading something like
> Normative Categories.
>
>