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Diffstat (limited to 'contrib/perl5/lib/Text/Abbrev.pm')
-rw-r--r-- | contrib/perl5/lib/Text/Abbrev.pm | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/contrib/perl5/lib/Text/Abbrev.pm b/contrib/perl5/lib/Text/Abbrev.pm deleted file mode 100644 index d4f12d0..0000000 --- a/contrib/perl5/lib/Text/Abbrev.pm +++ /dev/null @@ -1,81 +0,0 @@ -package Text::Abbrev; -require 5.005; # Probably works on earlier versions too. -require Exporter; - -=head1 NAME - -abbrev - create an abbreviation table from a list - -=head1 SYNOPSIS - - use Text::Abbrev; - abbrev $hashref, LIST - - -=head1 DESCRIPTION - -Stores all unambiguous truncations of each element of LIST -as keys in the associative array referenced by C<$hashref>. -The values are the original list elements. - -=head1 EXAMPLE - - $hashref = abbrev qw(list edit send abort gripe); - - %hash = abbrev qw(list edit send abort gripe); - - abbrev $hashref, qw(list edit send abort gripe); - - abbrev(*hash, qw(list edit send abort gripe)); - -=cut - -@ISA = qw(Exporter); -@EXPORT = qw(abbrev); - -# Usage: -# abbrev \%foo, LIST; -# ... -# $long = $foo{$short}; - -sub abbrev { - my ($word, $hashref, $glob, %table, $returnvoid); - - if (ref($_[0])) { # hash reference preferably - $hashref = shift; - $returnvoid = 1; - } elsif (ref \$_[0] eq 'GLOB') { # is actually a glob (deprecated) - $hashref = \%{shift()}; - $returnvoid = 1; - } - %{$hashref} = (); - - WORD: foreach $word (@_) { - for (my $len = (length $word) - 1; $len > 0; --$len) { - my $abbrev = substr($word,0,$len); - my $seen = ++$table{$abbrev}; - if ($seen == 1) { # We're the first word so far to have - # this abbreviation. - $hashref->{$abbrev} = $word; - } elsif ($seen == 2) { # We're the second word to have this - # abbreviation, so we can't use it. - delete $hashref->{$abbrev}; - } else { # We're the third word to have this - # abbreviation, so skip to the next word. - next WORD; - } - } - } - # Non-abbreviations always get entered, even if they aren't unique - foreach $word (@_) { - $hashref->{$word} = $word; - } - return if $returnvoid; - if (wantarray) { - %{$hashref}; - } else { - $hashref; - } -} - -1; |