Re: international case insensitive searched with Perl

#!perl
use 5.014;
use warnings;

my $string = 'LÉGER';
print $string =~ /léger/i ? 'matched' : 'no match';
[download]

Prints 'matched' for me.

... of course if you're using an older version of perl, you need to put a little more work into enforcing a match under Unicode rules.

TJD

Comment on Re: international case insensitive searched with Perl Download Code

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Re^2: international case insensitive searched with Perl by Anonymous Monk on Oct 03, 2011 at 20:05 UTC
More info: `use feature 'unicode_strings'` is the magic that works in 5.14. Check out 'The "Unicode Bug"' in `perldoc perlunicode` TJD	[reply] [d/l] [select]
Re^2: international case insensitive searched with Perl by chrestomanci (Priest) on Oct 04, 2011 at 09:13 UTC
There have been a lot of Unicode related improvements in Perl 5.14, so for this it is definitely worth trying to use the most recent perl you can. See perl5140delta#Full_functionality_for_use_feature_unicode_strings and The perl 5.14 release announcement on perl monks. The Download Perl page provides docs on how to download and install the latest perl. In summary if you are on Linux Mac or Unix then use Perl Brew to automate downloading and compiling perl. If you are on windows then ActiveState now have a build of Perl 5.14. There is no Strawberry Perl release of 5.14 yet.	[reply]
Re^2: international case insensitive searched with Perl by mwhiting (Beadle) on Oct 04, 2011 at 15:57 UTC
What kind of extra work is involved to make it match under unicode rules? I'm guessing it's a bit, so I might end up doing an customer-specific workaround to deal with it for them.	[reply]
Re^3: international case insensitive searched with Perl by Anonymous Monk on Oct 06, 2011 at 13:45 UTC
`use feature 'unicode_strings'` tells perl to assume all strings are unicode. `use utf8` tell perl to assume all strings in the current source file are unicode. Opening input files with a `:encoding` layer will tell perl that the resulting strings are unicode. `use encode` contains subs that can be used to mark or convert strings from any other source as/to unicode. Hope this helps TJD	[reply] [d/l] [select]