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Top Forums Shell Programming and Scripting A Perl regexp to validate arithmetic expressions Post 302477841 by DGPickett on Monday 6th of December 2010 01:24:50 PM
Old 12-06-2010
# Valid arifmetic expressions
'+3',
'-(3/4+(-2-3)/3)',
'(-((3)))',
'-(+1+2)*(3/(1-2))/((-3))',
'2*-3',
# Invalid (from the point of view of a human) arifmetic expressions
'-(3/4+(-2-3)/3',
'(-((3)+))');
 

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PPI::Token::Regexp::Match(3)				User Contributed Perl Documentation			      PPI::Token::Regexp::Match(3)

NAME
PPI::Token::Regexp::Match - A standard pattern match regex INHERITANCE
PPI::Token::Regexp::Match isa PPI::Token::Regexp isa PPI::Token isa PPI::Element SYNOPSIS
$text =~ m/match regexp/; $text =~ /match regexp/; DESCRIPTION
A "PPI::Token::Regexp::Match" object represents a single match regular expression. Just to be doubly clear, here are things that are and aren't considered a match regexp. # Is a match regexp /This is a match regexp/; m/Old McDonald had a farm/eieio; # These are NOT match regexp qr/This is a regexp quote-like operator/; s/This is a/replace regexp/; METHODS
There are no methods available for "PPI::Token::Regexp::Match" beyond those provided by the parent PPI::Token::Regexp, PPI::Token and PPI::Element classes. Got any ideas for methods? Submit a report to rt.cpan.org! SUPPORT
See the support section in the main module. AUTHOR
Adam Kennedy <adamk@cpan.org> COPYRIGHT
Copyright 2001 - 2011 Adam Kennedy. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of the license can be found in the LICENSE file included with this module. perl v5.16.3 2011-02-26 PPI::Token::Regexp::Match(3)
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