Re: What does Emacs on w32 know that grep can't figure out?

[Jan Djärv]

1 okt 2010 kl. 14:00 skrev Eli Zaretskii <address@hidden>:

>> From: Andreas Schwab <address@hidden>
>> Cc: "Jan D." <address@hidden>,  address@hidden,  address@hidden,  
>> address@hidden
>> Date: Fri, 01 Oct 2010 10:12:08 +0200
>> 
>> Eli Zaretskii <address@hidden> writes:
>> 
>>>> Date: Fri, 01 Oct 2010 07:37:59 +0200
>>>> From: "Jan D." <address@hidden>
>>>> Cc: Lennart Borgman <address@hidden>,
>>>>    Emacs-Devel devel <address@hidden>
>>>> 
>>>> GNU grep understands UTF-8 I think.
>>> 
>>> Not really.  Grep just compares bytes one by one, it knows nothing
>>> about multibyte characters.
>> 
>> grep uses exactly the character encoding as specified by the locale.
> 
> What do you mean by "support"?  It compares text by comparing its
> constituent bytes, without really understanding that a given sequence
> of bytes is a single character.

Grep knows about character classes, like [:alpha:] and [:lower:]. But I guess 
most of that comes from the locale support in libc.

    Jan D.