Shouldn't this be forwarded to the unicode list? I think it can find good
comments there.
--r
On 14 Sep 2000, Marcin 'Qrczak' Kowalczyk wrote:
> Thu, 14 Sep 2000 16:10:46 +0200, Karlsson Kent - keka <[EMAIL PROTECTED]> pisze:
>
> > I.e., there should be no "compiled in" "knowledge" that the
> > characters that were of category Cn are "unprintable".
>
> What should the following functions return, assuming they are designed
> now (for Haskell)? What else should be provided? I am putting here
> current definitions:
>
> isControl c = c < ' ' || c >= '\x7F' && c <= '\x9F'
> isPrint c = category is other than [Zl,Zp,Cc,Cf,Cs,Co]
> isSpace c = one of "\t\n\r\f\v" || category is one of [Zs,Zl,Zp]
> isGraph c = isPrint c && not (isSpace c)
> isPunct c = isGraph c && not (isAlphaNum c)
> isAlphaNum c = category is one of [Lu,Ll,Lt,Nd,Nl,No,Lm,Lo]
> isHexDigit c = isDigit c || c >= 'A' && c <= 'F' || c >= 'a' && c <= 'f'
> isDigit c = c >= '0' && c <= '9'
> isOctDigit c = c >= '0' && c <= '7'
> isAlpha c = category is one of [Lu,Ll,Lt,Lm,Lo]
> isUpper c = category is one of [Lu,Lt]
> isLower c = category is Ll
> isLatin1 c = c <= '\xFF'
> isAscii c = c < '\x80'
>
> isDigit intentionally recognizes ASCII digits only. IMHO it's more
> often needed and this is what the Haskell 98 Report says. But I don't
> follow the report in some other cases.
>
> Titlecase could be handled too. Even then I think that isUpper should
> be True for titlecase letters. But perhaps it's enough to have toTitle
> in addition to toUpper and toLower, because what could isTitle be
> used for?
>
> --
> __("< Marcin Kowalczyk * [EMAIL PROTECTED] http://qrczak.ids.net.pl/
> \__/
> ^^ SYGNATURA ZAST�PCZA
> QRCZAK
>
> -
> Linux-UTF8: i18n of Linux on all levels
> Archive: http://mail.nl.linux.org/lists/
>
-
Linux-UTF8: i18n of Linux on all levels
Archive: http://mail.nl.linux.org/lists/
