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Re: regex and case-fold-search problem
From: |
Kenichi Handa |
Subject: |
Re: regex and case-fold-search problem |
Date: |
Sat, 24 Aug 2002 09:51:46 +0900 (JST) |
User-agent: |
SEMI/1.14.3 (Ushinoya) FLIM/1.14.2 (Yagi-Nishiguchi) APEL/10.2 Emacs/21.1.30 (sparc-sun-solaris2.6) MULE/5.0 (SAKAKI) |
In article <address@hidden>, "Eli Zaretskii" <address@hidden> writes:
>> (let ((case-fold-search nil))
>> (string-match "[A-_]" "A")) => 0
>> (let ((case-fold-search t))
>> (string-match "[A-_]" "A")) => nil
>> (let ((case-fold-search t))
>> (string-match "[A_]" "A")) => 0
> Does that happen because under case-fold-search non-nil the
> characters on the range specification are downcased?
Yes.
>> In my opinion, specifying ranges by chars are nonsense
>> because there should be no semantics in the order of
>> characters codes.
> Sorry, I don't understand: how would one specify a range _except_
> with two characters and a dash between them? What am I missing?
I mean that the concept of character range itself is not
good. A character code is just an identifier of a
character. We usually don't think about "a range of
identifiers" (e.g. "symbols in the range between t and nil"
is nonsense).
---
Ken'ichi HANDA
address@hidden
- regex and case-fold-search problem, Kenichi Handa, 2002/08/23
- Re: regex and case-fold-search problem, Eli Zaretskii, 2002/08/23
- Re: regex and case-fold-search problem,
Kenichi Handa <=
- Re: regex and case-fold-search problem, Miles Bader, 2002/08/23
- Re: regex and case-fold-search problem, Eli Zaretskii, 2002/08/24
- Re: regex and case-fold-search problem, Andreas Schwab, 2002/08/24
- Re: regex and case-fold-search problem, Miles Bader, 2002/08/25
- Re: regex and case-fold-search problem, Stefan Monnier, 2002/08/26
- Re: regex and case-fold-search problem, Richard Stallman, 2002/08/26
- Re: regex and case-fold-search problem, Eli Zaretskii, 2002/08/24
- Re: regex and case-fold-search problem, Kenichi Handa, 2002/08/25
- Re: regex and case-fold-search problem, Miles Bader, 2002/08/25
- Re: regex and case-fold-search problem, Kim F. Storm, 2002/08/25