[Ocaml-i18n] Re: [Ocaml-lib-devel] Some (simple) functions I'd like to see in ExtLib ...

[Richard Jones]

On Thu, May 27, 2004 at 03:53:41PM +0100, Richard Jones wrote:
> > > ** ExtChar (or perhaps better in UChar):
> > >
> > > is_space, is_alnum, is_digit, is_xdigit, etc.  It's inexplicable why
> > > these were left out of the standard OCaml library.
> > 
> > you're welcome to send a full featured ExtChar module.
> 
> OK, will look at this.  Do you think it should be ExtChar or UChar
> though?  Since so much of the code I now write uses UTF-8 exclusively
> I'm loathe to contribute any more 8-bit-char-specific code to the
> world ...

Actually I can answer my own question here.  We could define the
ExtChar.is_* functions to only work correctly on 7-bit ASCII.  They
would return false on any character codes >= 128.  This way they
should do the Right Thing when presented with UTF-8 strings too.

(CC-ing this to ocaml-i18n so that people who know what they're
talking about can comment).

Rich.

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