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Diffstat (limited to 'chromium/third_party/cygwin/lib/perl5/5.10/less.pm')
-rw-r--r-- | chromium/third_party/cygwin/lib/perl5/5.10/less.pm | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/chromium/third_party/cygwin/lib/perl5/5.10/less.pm b/chromium/third_party/cygwin/lib/perl5/5.10/less.pm deleted file mode 100644 index 970b97a80c6..00000000000 --- a/chromium/third_party/cygwin/lib/perl5/5.10/less.pm +++ /dev/null @@ -1,155 +0,0 @@ -package less; -use strict; -use warnings; - -our $VERSION = '0.02'; - -sub _pack_tags { - return join ' ', @_; -} - -sub _unpack_tags { - return grep { defined and length } - map { split ' ' } - grep {defined} @_; -} - -sub of { - my $class = shift @_; - - # If no one wants the result, don't bother computing it. - return unless defined wantarray; - - my $hinthash = ( caller 0 )[10]; - my %tags; - @tags{ _unpack_tags( $hinthash->{$class} ) } = (); - - if (@_) { - exists $tags{$_} and return !!1 for @_; - return; - } - else { - return keys %tags; - } -} - -sub import { - my $class = shift @_; - - @_ = 'please' if not @_; - my %tags; - @tags{ _unpack_tags( @_, $^H{$class} ) } = (); - - $^H{$class} = _pack_tags( keys %tags ); - return; -} - -sub unimport { - my $class = shift @_; - - if (@_) { - my %tags; - @tags{ _unpack_tags( $^H{$class} ) } = (); - delete @tags{ _unpack_tags(@_) }; - my $new = _pack_tags( keys %tags ); - - if ( not length $new ) { - delete $^H{$class}; - } - else { - $^H{$class} = $new; - } - } - else { - delete $^H{$class}; - } - - return; -} - -1; - -__END__ - -=head1 NAME - -less - perl pragma to request less of something - -=head1 SYNOPSIS - - use less 'CPU'; - -=head1 DESCRIPTION - -This is a user-pragma. If you're very lucky some code you're using -will know that you asked for less CPU usage or ram or fat or... we -just can't know. Consult your documentation on everything you're -currently using. - -For general suggestions, try requesting C<CPU> or C<memory>. - - use less 'memory'; - use less 'CPU'; - use less 'fat'; - -If you ask for nothing in particular, you'll be asking for C<less -'please'>. - - use less 'please'; - -=head1 FOR MODULE AUTHORS - -L<less> has been in the core as a "joke" module for ages now and it -hasn't had any real way to communicating any information to -anything. Thanks to Nicholas Clark we have user pragmas (see -L<perlpragma>) and now C<less> can do something. - -You can probably expect your users to be able to guess that they can -request less CPU or memory or just "less" overall. - -If the user didn't specify anything, it's interpreted as having used -the C<please> tag. It's up to you to make this useful. - - # equivalent - use less; - use less 'please'; - -=head2 C<< BOOLEAN = less->of( FEATURE ) >> - -The class method C<< less->of( NAME ) >> returns a boolean to tell you -whether your user requested less of something. - - if ( less->of( 'CPU' ) ) { - ... - } - elsif ( less->of( 'memory' ) ) { - - } - -=head2 C<< FEATURES = less->of() >> - -If you don't ask for any feature, you get the list of features that -the user requested you to be nice to. This has the nice side effect -that if you don't respect anything in particular then you can just ask -for it and use it like a boolean. - - if ( less->of ) { - ... - } - else { - ... - } - -=head1 CAVEATS - -=over - -=item This probably does nothing. - -=item This works only on 5.10+ - -At least it's backwards compatible in not doing much. - -=back - -=cut |