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Top Forums Shell Programming and Scripting Perl regex help - matching parentheses Post 302207345 by KevinADC on Thursday 19th of June 2008 04:00:28 PM
Old 06-19-2008
If you know the pattern you want to match that is what you would use:

Code:
my $str = '(foo ((bar)))';
my ($n) = $str =~ /(\Q((bar))\E)/;
print $n;

\Q escapes the meta meaning of the parenthesis and treats them literally.
 

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FINDRULE(1p)						User Contributed Perl Documentation					      FINDRULE(1p)

NAME
findrule - command line wrapper to File::Find::Rule USAGE
findrule [path...] [expression] DESCRIPTION
"findrule" mostly borrows the interface from GNU find(1) to provide a command-line interface onto the File::Find::Rule heirarchy of modules. The syntax for expressions is the rule name, preceded by a dash, followed by an optional argument. If the argument is an opening parenthesis it is taken as a list of arguments, terminated by a closing parenthesis. Some examples: find -file -name ( foo bar ) files named "foo" or "bar", below the current directory. find -file -name foo -bar files named "foo", that have pubs (for this is what our ficticious "bar" clause specifies), below the current directory. find -file -name ( -bar ) files named "-bar", below the current directory. In this case if we'd have omitted the parenthesis it would have parsed as a call to name with no arguments, followed by a call to -bar. Supported switches I'm very slack. Please consult the File::Find::Rule manpage for now, and prepend - to the commands that you want. Extra bonus switches findrule automatically loads all of your installed File::Find::Rule::* extension modules, so check the documentation to see what those would be. AUTHOR
Richard Clamp <richardc@unixbeard.net> from a suggestion by Tatsuhiko Miyagawa COPYRIGHT
Copyright (C) 2002 Richard Clamp. All Rights Reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
File::Find::Rule perl v5.12.4 2011-09-19 FINDRULE(1p)
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