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Re: [bug-grep] Re: grep: -i option not working i cronjobs

From: Elliott Hughes
Subject: Re: [bug-grep] Re: grep: -i option not working i cronjobs
Date: Mon, 15 Nov 2004 09:20:02 -0800

On Nov 15, 2004, at 06:27, Tim Waugh wrote:

On Mon, Nov 15, 2004 at 12:56:38PM +0000, Julian Foad wrote:

Hold on.  Do you think converting to same-case would achieve that
one-versus-two-character match?  I don't.


Does the locale interface actually support multichar transliteration?
In other words, does the de_DE locale data have anything to say about
this special SS character?

For me at least, in de_DE.UTF-8, "\303\237" is both upper-case and
lower-case (towlower() and towupper() give the same result).

that's why Java has String.to(Lower|Upper)Case to be used in preference to the equivalent methods in Character. but, as i said, Java's regular expression code doesn't handle this case by itself.

even String.equalsIgnoreCase works character-by-character. (and yet goes to the trouble of comparing the characters, the upper-cased characters, and finally the lower-cased characters.)

$ cat > t.java
public class t {
 public static void main(String[] args) {
$ javac t.java && java t

i don't have my copy of the Rechtschreibung to see if it says anything about upper/lower equivalence and if so, what it says.


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