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|
##############################################################################
# $URL: http://perlcritic.tigris.org/svn/perlcritic/trunk/Perl-Critic/t/RegularExpressions/ProhibitUnusedCapture.run $
# $Date: 2008-03-16 17:40:45 -0500 (Sun, 16 Mar 2008) $
# $Author: clonezone $
# $Revision: 2187 $
##############################################################################
## name non-captures
## failures 0
## cut
m/foo/;
m/(?:foo)/;
if (m/foo/) {
print "bar";
}
#-----------------------------------------------------------------------------
## name assignment captures
## failures 0
## cut
my ($foo) = m/(foo)/;
my ($foo) = m/(foo|bar)/;
my ($foo) = m/(foo)(?:bar)/;
my @foo = m/(foo)/;
my @foo = m/(foo)/g;
my %foo = m/(foo)(bar)/g;
my ($foo, $bar) = m/(foo)(bar)/;
my @foo = m/(foo)(bar)/;
my ($foo, @bar) = m/(foo)(bar)/;
my ($foo, @bar) = m/(foo)(bar)(baz)/;
#-----------------------------------------------------------------------------
## name undef array captures
## failures 0
## cut
() = m/(foo)/;
(undef) = m/(foo)/;
my ($foo) =()= m/(foo)/g;
#-----------------------------------------------------------------------------
## name complex array assignment captures
## failures 0
## cut
@$foo = m/(foo)(bar)/;
@{$foo} = m/(foo)(bar)/;
%$foo = m/(foo)(bar)/;
%{$foo} = m/(foo)(bar)/;
($foo,@$foo) = m/(foo)(bar)/;
($foo,@{$foo}) = m/(foo)(bar)/;
#-----------------------------------------------------------------------------
## name conditional captures
## failures 0
## cut
if (m/(foo)/) {
my $foo = $1;
print $foo;
}
if (m/(foo)(bar)/) {
my $foo = $1;
my $bar = $2;
print $foo, $bar;
}
if (m/(foo)(bar)/) {
my ($foo, $bar) = ($1, $2);
print $foo, $bar;
}
if (m/(foo)(bar)/) {
my (@foo) = ($1, $2);
print @foo;
}
if (m/(foo)/) {
# bug, but not a violation of THIS policy
my (@foo) = ($1, $2);
print @foo;
}
#-----------------------------------------------------------------------------
## name boolean and ternary captures
## failures 0
## cut
m/(foo)/ && print $1;
m/(foo)/ ? print $1 : die;
m/(foo)/ && ($1 == 'foo') ? print 1 : die;
#-----------------------------------------------------------------------------
## name loop captures
## failures 0
## cut
for (m/(foo)/) {
my $foo = $1;
print $foo;
}
#-----------------------------------------------------------------------------
## name slurpy array loop captures
## failures 0
## cut
map {print} m/(foo)/;
foo(m/(foo)/);
foo('bar', m/(foo)/);
foo(m/(foo)/, 'bar');
foo m/(foo)/;
foo 'bar', m/(foo)/;
foo m/(foo)/, 'bar';
## name slurpy with assignment
## failures 0
## cut
my ($foo) = grep {$b++ == 2} m/(foo)/g;
my ($foo) = grep {$b++ == 2} $str =~ m/(foo)/g;
#-----------------------------------------------------------------------------
## name slurpy with array assignment
## failures 0
## cut
my @foo = grep {$b++ > 2} m/(foo)/g;
my @foo = grep {$b++ > 2} $str =~ m/(foo)/g;
#-----------------------------------------------------------------------------
## name assignment captures on string
## failures 0
## cut
my ($foo) = $str =~ m/(foo)/;
my ($foo) = $str =~ m/(foo|bar)/;
my ($foo) = $str =~ m/(foo)(?:bar)/;
my @foo = $str =~ m/(foo)/;
my @foo = $str =~ m/(foo)/g;
my ($foo, $bar) = $str =~ m/(foo)(bar)/;
my @foo = $str =~ m/(foo)(bar)/;
my ($foo, @bar) = $str =~ m/(foo)(bar)/;
my (@bar) = $str =~ m/(foo)(bar)/;
my ($foo, @bar) = $str =~ m/(foo)(bar)(baz)/;
#-----------------------------------------------------------------------------
## name slurpy captures on string
## failures 0
## cut
map {print} $str =~ m/(foo)/g;
#-----------------------------------------------------------------------------
## name self captures
## failures 0
## cut
m/(foo)\1/;
s/(foo)/$1/;
#-----------------------------------------------------------------------------
## name basic failures
## failures 5
## optional_modules Regexp::Parser
## cut
m/(foo)/;
my ($foo) = m/(foo)/g;
if (m/(foo)/) {
print "bar";
}
if (m/(foo)(bar)/) {
my $foo = $1;
print $foo;
}
for (m/(foo)/) {
print "bar";
}
#-----------------------------------------------------------------------------
## name negated regexp failures
## failures 1
## optional_modules Regexp::Parser
## cut
my ($foo) = $str !~ m/(foo)/;
#-----------------------------------------------------------------------------
## name statement failures
## failures 1
## optional_modules Regexp::Parser
## cut
m/(foo)/ && m/(bar)/ && print $1;
#-----------------------------------------------------------------------------
## name sub failures
## failures 1
## optional_modules Regexp::Parser
## cut
sub foo {
m/(foo)/;
return;
}
print $1;
#-----------------------------------------------------------------------------
## name anon sub failures
## failures 1
## optional_modules Regexp::Parser
## TODO PPI v1.118 doesn't recognize anonymous subroutines
## cut
my $sub = sub foo {
m/(foo)/;
return;
};
print $1;
#-----------------------------------------------------------------------------
## name ref constructors
## failures 0
## cut
$f = { m/(\w+)=(\w+)/g };
$f = [ m/(\w+)/g ];
#-----------------------------------------------------------------------------
## name sub returns
## failures 0
## cut
sub foo {
m/(foo)/;
}
sub foo {
return m/(foo)/;
}
map { m/(foo)/ } (1, 2, 3);
#-----------------------------------------------------------------------------
## name failing regexp with syntax error
## failures 0
## cut
m/(foo)(/;
#-----------------------------------------------------------------------------
## name lvalue sub assigment pass
## failures 0
## cut
(substr $str, 0, 1) = m/(\w+)/;
#-----------------------------------------------------------------------------
## name lvalue sub assigment failure
## failures 1
## optional_modules Regexp::Parser
## TODO lvalue subs are too complex to support
## cut
(substr $str, 0, 1) = m/(\w+)(\d+)/;
#-----------------------------------------------------------------------------
## name code coverage
## failures 1
## optional_modules Regexp::Parser
## cut
m/(foo)/;
print $0;
print @ARGV;
print $_;
#-----------------------------------------------------------------------------
# Local Variables:
# mode: cperl
# cperl-indent-level: 4
# fill-column: 78
# indent-tabs-mode: nil
# c-indentation-style: bsd
# End:
# ex: set ts=8 sts=4 sw=4 tw=78 ft=perl expandtab shiftround :
|
