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Date:	Wed, 30 May 2001 18:11:56 +0400
From:	egor duda <deo AT logos-m DOT ru>
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Reply-To:	egor duda <cygwin-developers AT cygwin DOT com>
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Message-ID:	<9265832872.20010530181156@logos-m.ru>
To:	Christopher Faylor <cygwin-developers AT cygwin DOT com>
Subject:	Re: isspace() & i18n
In-reply-To:	<20010530095254.B17603@redhat.com>
References:	<13254193676 DOT 20010530145756 AT logos-m DOT ru>
	<20010530095254 DOT B17603 AT redhat DOT com>
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Hi!

Wednesday, 30 May, 2001 Christopher Faylor cgf AT redhat DOT com wrote:

CF> On Wed, May 30, 2001 at 02:57:56PM +0400, egor duda wrote:

>>  cygwin calls newlib's isspace() passing it a signed char. this works
>>ok for ascii symbols 0x00-0x7f, but fails with, say, cyrillic symbols
>> with codes > 0x80. As a result `cd dir-with-last-cyrillic-letter'
>>fails as chdir strips last symbols, thinking they're spaces --
>>isspace() is called with negative parameter.
>>
>>Any thoughts as of how we should handle this?

CF> Maybe we just need a cygwin_isspace which checks for just tabs and spaces?

it's possible, of course, but the problem with referencing negative
array indices in is*() remains.

i think we should either conform to standard and explicitly convert
types or define appropriate strings as unsigned char*, (typedef PATH_STR,
perhaps), or define cygwin_is*() as macros that do the conversion, or,
as glibc does, expand _ctype to allow indices in range [-128,256].

Egor.            mailto:deo AT logos-m DOT ru ICQ 5165414 FidoNet 2:5020/496.19

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