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List::Pairwise 0.23

Date Added: August 04, 2010 | Visits: 714

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List::Pairwise is a Perl module with map/grep arrays and hashes pairwise. SYNOPSIS use List::Pairwise qw(:all); my %a = ( snoogy1 => 4, snoogy2 => 2, NOT => 4, snoogy3 => 5, hehe => 12, ); # keys/values emulation (only slower) my @keys = mapp {$a} %a; my @values = mapp {$b} %a; # reverse hash (does not work in-place) my %reverse_a = mapp {$b, $a} %a; # reverse array pairs in-place my @a = %a; mapp { ($a, $b) = ($b, $a) } @a; # modify values in-place mapp {$b++} %a; # modify keys (does not work in-place) my %b = mapp {lc($a) => $b} %a; # grep hash subset my %subset1 = grepp {$a =~ /snoogy/} %a; my %subset2 = grepp {$b < 5} %a; # grep some specific values my @snoog_values = mapp {$b} grepp {$a =~ /snoogy/} %a; # This does not work: # values grepp {$a =~ /snoogy/} %a; # values() expects a real hash.

Requirements: No special requirements

Platforms: Linux

Keyword: Hashes, Libraries, Listpairwise, Mapp, Module, Perl, Perl Module, Programming, Values

Users rating: 0/10

License: Freeware

Size: 20.48 KB

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