#!/usr/local/bin/perl use 5.006002; use strict; use warnings; use File::Find; use File::Spec; use Getopt::Long; use PPI; use PPIx::Regexp; my %opt; GetOptions( \%opt, qw{ once! } ) or die; find( \&interpolated, @ARGV ? @ARGV : ( File::Spec->curdir() ) ); sub interpolated { -d $_ and return prune(); is_perl( $_ ) or return; my $named; my $doc = PPI::Document->new( $_ ); foreach my $class ( qw{ PPI::Token::Regexp::Match PPI::Token::Regexp::Substitute PPI::Token::QuoteLike::Regexp } ) { foreach my $elem ( @{ $doc->find( $class ) || [] } ) { my $re = PPIx::Regexp->new( $elem ); $re->regular_expression()->find_first( 'PPIx::Regexp::Token::Interpolation' ) or next; $opt{once} and $re->modifier()->asserts( 'o' ) and next; $named++ or print $File::Find::name, "\n"; print ' ', $re->content(), "\n"; } } } sub is_perl { my ( $fn ) = @_; -T $fn or return; $fn =~ m/ [.] pm \z /smx and return 1; $fn =~ m/ [.] pl \z /smxi and return 1; open ( my $fh, '<', $fn ) or return; local $_ = <$fh>; close $fh; defined $_ or return; m/ \A [#] ! .*? perl /smx and return 1; m/ \A [#] ! /smx and return; $fn =~ m/ [.] t \z /smx and return 1; return; } { my %pruned; BEGIN { %pruned = map { $_ => 1 } qw{ blib }; } sub prune { '.' eq $_ and return; $pruned{$_} or m/ \A [.] /smx or return; $File::Find::prune = 1; return; } } __END__ =head1 TITLE interpolated - Find all interpolated regular expressions =head1 SYNOPSIS interpolated interpolated lib interpolated -once =head1 OPTIONS =over =item -once If this option is asserted, only interpolated regular expressions B<without> the C</o> qualifier are found. =head1 DETAILS This script searches files or directories for interpolated regular expressions. These are considered to be matches or C<qr{ }> expressions containing interpolations, or substitutions containing interpolations in their regular expressions. Interpolation in the replacement portion of the substitution are not considered. The names of any files containing such regular expressions are listed, along with the statements themselves. If C<-once> is asserted, only regular expressions without the C</o> modifier are listed. =head1 AUTHOR Thomas R. Wyant, III F<wyant at cpan dot org> =head1 COPYRIGHT AND LICENSE Copyright (C) 2010-2011 by Thomas R. Wyant, III This program is free software; you can redistribute it and/or modify it under the same terms as Perl 5.10.0. For more details, see the full text of the licenses in the directory LICENSES. This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. =cut # ex: set textwidth=72 :