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ulpfr |
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# -*- Mode: Perl -*- |
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# $Basename: Filter.pm $ |
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# $Revision: 1.7 $ |
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# ITIID : $ITI$ $Header $__Header$ |
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# Author : Ulrich Pfeifer |
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# Created On : Thu Aug 15 18:09:51 1996 |
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# Last Modified By: Ulrich Pfeifer |
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# Last Modified On: Sun Nov 22 18:44:46 1998 |
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# Language : CPerl |
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# Update Count : 105 |
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# Status : Unknown, Use with caution! |
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# |
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# Copyright (c) 1996-1997, Ulrich Pfeifer |
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# |
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package WAIT::Filter; |
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require WAIT; |
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use strict; |
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use Carp; |
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use vars qw($VERSION @ISA @EXPORT_OK %STOP $SPLIT $AUTOLOAD); |
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use subs qw(grundform); |
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require Exporter; |
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@ISA = qw(Exporter); |
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@EXPORT_OK = qw( |
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Stem |
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Soundex |
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Phonix |
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Metaphone |
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isolc disolc |
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isouc disouc |
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isotr disotr |
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stop grundform |
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); |
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$VERSION = substr q$Revision: 1.7 $, 10; |
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sub split { |
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map split(' ', $_), @_; |
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} |
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$SPLIT = q[ |
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sub splitXXX { |
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grep length($_)>=XXX, map split(' ', $_), @_; |
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} |
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]; |
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sub AUTOLOAD { |
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my $func = $AUTOLOAD; $func =~ s/.*:://; |
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if ($func =~ /split(\d+)/) { |
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my $num = $1; |
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my $split = $SPLIT; |
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$split =~ s/XXX/$num/g; |
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eval $split; |
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if ($@ eq '') { |
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goto &$AUTOLOAD; |
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} |
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} elsif ($func eq 'grundform') { |
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eval {require Text::German;}; |
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croak "You must have Text::German to use 'grundform'" |
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if $@ ne ''; |
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*grundform = Text::German->can('reduce'); |
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goto &grundform; |
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} elsif ($func eq 'date') { |
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eval {require Time::ParseDate;}; |
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croak "You must have Time::ParseDate to use 'date'" |
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if $@ ne ''; |
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*date = Time::ParseDate->can('parsedate'); |
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goto \&date; |
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} elsif ($func eq 'decode_entities') { |
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eval {require HTML::Entities;}; |
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croak "You must have HTML::Entities to use 'date'" |
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if $@ ne ''; |
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*decode_entities = HTML::Entities->can('decode_entities'); |
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goto &decode_entities; |
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} |
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croak "Your vendor has not defined WAIT::Filter::$func"; |
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} |
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while (<DATA>) { |
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chomp; |
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last if /__END__/; |
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$STOP{$_}++; |
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} |
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sub stop { |
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if (exists $STOP{$_[0]}) { |
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'' |
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} else { |
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$_[0]; |
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} |
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} |
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sub gdate { |
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my $date = shift; |
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$date =~ s:(\d+)\.(\d+)\.(d+):$2/$1/$3:; |
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date($date); |
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} |
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1; |
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__DATA__ |
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a |
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about |
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above |
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according |
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across |
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actually |
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adj |
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after |
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afterwards |
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again |
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against |
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all |
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almost |
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alone |
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along |
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already |
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also |
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although |
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always |
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among |
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amongst |
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an |
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and |
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another |
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any |
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anyhow |
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anyone |
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anything |
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anywhere |
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are |
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aren't |
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around |
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as |
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at |
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b |
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be |
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became |
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because |
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become |
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becomes |
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becoming |
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been |
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before |
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beforehand |
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begin |
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beginning |
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behind |
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being |
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below |
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beside |
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besides |
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between |
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beyond |
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billion |
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both |
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but |
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by |
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c |
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can |
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can't |
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cannot |
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caption |
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co |
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co. |
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could |
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couldn't |
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d |
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did |
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didn't |
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do |
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does |
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doesn't |
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don't |
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down |
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during |
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e |
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eg |
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eight |
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eighty |
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either |
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else |
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elsewhere |
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end |
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ending |
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enough |
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etc |
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even |
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ever |
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every |
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everyone |
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everything |
| 196 |
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everywhere |
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except |
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f |
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few |
| 200 |
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fifty |
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first |
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five |
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vfor |
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former |
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formerly |
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forty |
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found " |
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four |
| 209 |
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from |
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further |
| 211 |
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g |
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h |
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had |
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has |
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hasn't |
| 216 |
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have |
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haven't |
| 218 |
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he |
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he'd |
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he'll |
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he's |
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hence |
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her |
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here |
| 225 |
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here's |
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hereafter |
| 227 |
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hereby |
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herein |
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hereupon |
| 230 |
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hers |
| 231 |
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herself |
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him |
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himself |
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his |
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how |
| 236 |
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however |
| 237 |
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hundred |
| 238 |
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i |
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i'd |
| 240 |
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i'll |
| 241 |
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i'm |
| 242 |
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i've |
| 243 |
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ie |
| 244 |
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if |
| 245 |
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in |
| 246 |
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inc. |
| 247 |
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indeed |
| 248 |
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instead |
| 249 |
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into |
| 250 |
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is |
| 251 |
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isn't |
| 252 |
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|
it |
| 253 |
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it's |
| 254 |
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its |
| 255 |
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itself |
| 256 |
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j |
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k |
| 258 |
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l |
| 259 |
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last |
| 260 |
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later |
| 261 |
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latter |
| 262 |
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latterly |
| 263 |
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least |
| 264 |
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less |
| 265 |
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|
let |
| 266 |
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let's |
| 267 |
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like |
| 268 |
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|
likely |
| 269 |
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ltd |
| 270 |
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|
m |
| 271 |
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made |
| 272 |
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|
make |
| 273 |
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|
makes |
| 274 |
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many |
| 275 |
|
|
maybe |
| 276 |
|
|
me |
| 277 |
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|
meantime |
| 278 |
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|
meanwhile |
| 279 |
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|
might |
| 280 |
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|
million |
| 281 |
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|
miss |
| 282 |
|
|
more |
| 283 |
|
|
moreover |
| 284 |
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|
most |
| 285 |
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|
mostly |
| 286 |
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mr |
| 287 |
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|
mrs |
| 288 |
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|
much |
| 289 |
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|
must |
| 290 |
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|
my |
| 291 |
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|
myself |
| 292 |
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|
n |
| 293 |
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|
namely |
| 294 |
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|
neither |
| 295 |
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|
never |
| 296 |
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|
nevertheless |
| 297 |
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|
next |
| 298 |
|
|
nine |
| 299 |
|
|
ninety |
| 300 |
|
|
no |
| 301 |
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|
nobody |
| 302 |
|
|
none |
| 303 |
|
|
nonetheless |
| 304 |
|
|
noone |
| 305 |
|
|
nor |
| 306 |
|
|
not |
| 307 |
|
|
nothing |
| 308 |
|
|
now |
| 309 |
|
|
nowhere |
| 310 |
|
|
o |
| 311 |
|
|
of |
| 312 |
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|
off |
| 313 |
|
|
often |
| 314 |
|
|
on |
| 315 |
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|
once |
| 316 |
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|
one |
| 317 |
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|
one's |
| 318 |
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|
only |
| 319 |
|
|
onto |
| 320 |
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|
or |
| 321 |
|
|
other |
| 322 |
|
|
others |
| 323 |
|
|
otherwise |
| 324 |
|
|
our |
| 325 |
|
|
ours |
| 326 |
|
|
ourselves |
| 327 |
|
|
out |
| 328 |
|
|
over |
| 329 |
|
|
overall |
| 330 |
|
|
own |
| 331 |
|
|
p |
| 332 |
|
|
per |
| 333 |
|
|
perhaps |
| 334 |
|
|
q |
| 335 |
|
|
r |
| 336 |
|
|
rather |
| 337 |
|
|
recent |
| 338 |
|
|
recently |
| 339 |
|
|
s |
| 340 |
|
|
same |
| 341 |
|
|
seem |
| 342 |
|
|
seemed |
| 343 |
|
|
seeming |
| 344 |
|
|
seems |
| 345 |
|
|
seven |
| 346 |
|
|
seventy |
| 347 |
|
|
several |
| 348 |
|
|
she |
| 349 |
|
|
she'd |
| 350 |
|
|
she'll |
| 351 |
|
|
she's |
| 352 |
|
|
should |
| 353 |
|
|
shouldn't |
| 354 |
|
|
since |
| 355 |
|
|
six |
| 356 |
|
|
sixty |
| 357 |
|
|
so |
| 358 |
|
|
some |
| 359 |
|
|
somehow |
| 360 |
|
|
someone |
| 361 |
|
|
something |
| 362 |
|
|
sometime |
| 363 |
|
|
sometimes |
| 364 |
|
|
somewhere |
| 365 |
|
|
still |
| 366 |
|
|
stop |
| 367 |
|
|
such |
| 368 |
|
|
t |
| 369 |
|
|
taking |
| 370 |
|
|
ten |
| 371 |
|
|
than |
| 372 |
|
|
that |
| 373 |
|
|
that'll |
| 374 |
|
|
that's |
| 375 |
|
|
that've |
| 376 |
|
|
the |
| 377 |
|
|
their |
| 378 |
|
|
them |
| 379 |
|
|
themselves |
| 380 |
|
|
then |
| 381 |
|
|
thence |
| 382 |
|
|
there |
| 383 |
|
|
there'd |
| 384 |
|
|
there'll |
| 385 |
|
|
there're |
| 386 |
|
|
there's |
| 387 |
|
|
there've |
| 388 |
|
|
thereafter |
| 389 |
|
|
thereby |
| 390 |
|
|
therefore |
| 391 |
|
|
therein |
| 392 |
|
|
thereupon |
| 393 |
|
|
these |
| 394 |
|
|
they |
| 395 |
|
|
they'd |
| 396 |
|
|
they'll |
| 397 |
|
|
they're |
| 398 |
|
|
they've |
| 399 |
|
|
thirty |
| 400 |
|
|
this |
| 401 |
|
|
those |
| 402 |
|
|
though |
| 403 |
|
|
thousand |
| 404 |
|
|
three |
| 405 |
|
|
through |
| 406 |
|
|
throughout |
| 407 |
|
|
thru |
| 408 |
|
|
thus |
| 409 |
|
|
to |
| 410 |
|
|
together |
| 411 |
|
|
too |
| 412 |
|
|
toward |
| 413 |
|
|
towards |
| 414 |
|
|
trillion |
| 415 |
|
|
twenty |
| 416 |
|
|
two |
| 417 |
|
|
u |
| 418 |
|
|
under |
| 419 |
|
|
unless |
| 420 |
|
|
unlike |
| 421 |
|
|
unlikely |
| 422 |
|
|
until |
| 423 |
|
|
up |
| 424 |
|
|
upon |
| 425 |
|
|
us |
| 426 |
|
|
used |
| 427 |
|
|
using |
| 428 |
|
|
v |
| 429 |
|
|
very |
| 430 |
|
|
via |
| 431 |
|
|
w |
| 432 |
|
|
was |
| 433 |
|
|
wasn't |
| 434 |
|
|
we |
| 435 |
|
|
we'd |
| 436 |
|
|
we'll |
| 437 |
|
|
we're |
| 438 |
|
|
we've |
| 439 |
|
|
well |
| 440 |
|
|
were |
| 441 |
|
|
weren't |
| 442 |
|
|
what |
| 443 |
|
|
what'll |
| 444 |
|
|
what's |
| 445 |
|
|
what've |
| 446 |
|
|
whatever |
| 447 |
|
|
when |
| 448 |
|
|
whence |
| 449 |
|
|
whenever |
| 450 |
|
|
where |
| 451 |
|
|
where's |
| 452 |
|
|
whereafter |
| 453 |
|
|
whereas |
| 454 |
|
|
whereby |
| 455 |
|
|
wherein |
| 456 |
|
|
whereupon |
| 457 |
|
|
wherever |
| 458 |
|
|
whether |
| 459 |
|
|
which |
| 460 |
|
|
while |
| 461 |
|
|
whither |
| 462 |
|
|
who |
| 463 |
|
|
who'd |
| 464 |
|
|
who'll |
| 465 |
|
|
who's |
| 466 |
|
|
whoever |
| 467 |
|
|
whole |
| 468 |
|
|
whom |
| 469 |
|
|
whomever |
| 470 |
|
|
whose |
| 471 |
|
|
why |
| 472 |
|
|
will |
| 473 |
|
|
with |
| 474 |
|
|
within |
| 475 |
|
|
without |
| 476 |
|
|
won't |
| 477 |
|
|
would |
| 478 |
|
|
wouldn't |
| 479 |
|
|
x |
| 480 |
|
|
y |
| 481 |
|
|
yes |
| 482 |
|
|
yet |
| 483 |
|
|
you |
| 484 |
|
|
you'd |
| 485 |
|
|
you'll |
| 486 |
|
|
you're |
| 487 |
|
|
you've |
| 488 |
|
|
your |
| 489 |
|
|
yours |
| 490 |
|
|
yourself |
| 491 |
|
|
yourselves |
| 492 |
|
|
z |
| 493 |
|
|
# occuring in more than 100 files |
| 494 |
|
|
acc |
| 495 |
|
|
accent |
| 496 |
|
|
accents |
| 497 |
|
|
and |
| 498 |
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|
are |
| 499 |
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bell |
| 500 |
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can |
| 501 |
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character |
| 502 |
|
|
corrections |
| 503 |
|
|
crt |
| 504 |
|
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daisy |
| 505 |
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dash |
| 506 |
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date |
| 507 |
|
|
defined |
| 508 |
|
|
definitions |
| 509 |
|
|
description |
| 510 |
|
|
devices |
| 511 |
|
|
diablo |
| 512 |
|
|
dummy |
| 513 |
|
|
factors |
| 514 |
|
|
following |
| 515 |
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|
font |
| 516 |
|
|
for |
| 517 |
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from |
| 518 |
|
|
fudge |
| 519 |
|
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give |
| 520 |
|
|
have |
| 521 |
|
|
header |
| 522 |
|
|
holds |
| 523 |
|
|
log |
| 524 |
|
|
logo |
| 525 |
|
|
low |
| 526 |
|
|
lpr |
| 527 |
|
|
mark |
| 528 |
|
|
name |
| 529 |
|
|
nroff |
| 530 |
|
|
out |
| 531 |
|
|
output |
| 532 |
|
|
pitch |
| 533 |
|
|
put |
| 534 |
|
|
rcsfile |
| 535 |
|
|
reference |
| 536 |
|
|
resolution |
| 537 |
|
|
revision |
| 538 |
|
|
see |
| 539 |
|
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set |
| 540 |
|
|
simple |
| 541 |
|
|
smi |
| 542 |
|
|
some |
| 543 |
|
|
string |
| 544 |
|
|
synopsis |
| 545 |
|
|
system |
| 546 |
|
|
that |
| 547 |
|
|
the |
| 548 |
|
|
this |
| 549 |
|
|
translation |
| 550 |
|
|
troff |
| 551 |
|
|
typewriter |
| 552 |
|
|
ucb |
| 553 |
|
|
unbreakable |
| 554 |
|
|
use |
| 555 |
|
|
used |
| 556 |
|
|
user |
| 557 |
|
|
vroff |
| 558 |
|
|
wheel |
| 559 |
|
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will |
| 560 |
|
|
with |
| 561 |
|
|
you |
| 562 |
|
|
__END__ |
| 563 |
|
|
# Below is the stub of documentation for your module. You better edit it! |
| 564 |
|
|
|
| 565 |
|
|
=head1 NAME |
| 566 |
|
|
|
| 567 |
|
|
WAIT::Filter - Perl extension providing the basic freeWAIS-sf reduction functions |
| 568 |
|
|
|
| 569 |
|
|
=head1 SYNOPSIS |
| 570 |
|
|
|
| 571 |
|
|
use WAIT::Filter qw(Stem Soundex Phonix isolc isouc disolc disouc); |
| 572 |
|
|
|
| 573 |
|
|
$stem = Stem($word); |
| 574 |
|
|
$scode = Soundex($word); |
| 575 |
|
|
$pcode = Phonix($word); |
| 576 |
|
|
$lword = isolc($word); |
| 577 |
|
|
$uword = isouc($word); |
| 578 |
|
|
disolc($word); |
| 579 |
|
|
disouc($word); |
| 580 |
|
|
|
| 581 |
|
|
=head1 DESCRIPTION |
| 582 |
|
|
|
| 583 |
|
|
This tiny modules gives access to the basic reduction functions build |
| 584 |
|
|
in B<freeWAIS-sf>. |
| 585 |
|
|
|
| 586 |
|
|
=over 5 |
| 587 |
|
|
|
| 588 |
|
|
=item B<Stem>(I<word>) |
| 589 |
|
|
|
| 590 |
|
|
reduces I<word> using the well know Porter algorithm. |
| 591 |
|
|
|
| 592 |
|
|
AU: Porter, M.F. |
| 593 |
|
|
TI: An Algorithm for Suffix Stripping |
| 594 |
|
|
JT: Program |
| 595 |
|
|
VO: 14 |
| 596 |
|
|
PP: 130-137 |
| 597 |
|
|
PY: 1980 |
| 598 |
|
|
PM: JUL |
| 599 |
|
|
|
| 600 |
|
|
=item B<Soundex>(I<word>) |
| 601 |
|
|
|
| 602 |
|
|
|
| 603 |
|
|
computes the 4 byte B<Soundex> code for I<word>. |
| 604 |
|
|
|
| 605 |
|
|
AU: Gadd, T.N. |
| 606 |
|
|
TI: 'Fisching for Werds'. Phonetic Retrieval of written text in |
| 607 |
|
|
Information Retrieval Systems |
| 608 |
|
|
JT: Program |
| 609 |
|
|
VO: 22 |
| 610 |
|
|
NO: 3 |
| 611 |
|
|
PP: 222-237 |
| 612 |
|
|
PY: 1988 |
| 613 |
|
|
|
| 614 |
|
|
|
| 615 |
|
|
=item B<Phonix>(I<word>) |
| 616 |
|
|
|
| 617 |
|
|
computes the 8 byte B<Phonix> code for I<word>. |
| 618 |
|
|
|
| 619 |
|
|
AU: Gadd, T.N. |
| 620 |
|
|
TI: PHONIX: The Algorithm |
| 621 |
|
|
JT: Program |
| 622 |
|
|
VO: 24 |
| 623 |
|
|
NO: 4 |
| 624 |
|
|
PP: 363-366 |
| 625 |
|
|
PY: 1990 |
| 626 |
|
|
PM: OCT |
| 627 |
|
|
|
| 628 |
|
|
=head1 ISO charcater case functions |
| 629 |
|
|
|
| 630 |
|
|
There are some additional function which transpose some/most ISOlatin1 |
| 631 |
|
|
characters to upper and lower case. To allow for maximum speed there |
| 632 |
|
|
are also I<destructive> versions which change the argument instead of |
| 633 |
|
|
allocating a copy which is returned. For convenience, the destructive |
| 634 |
|
|
version also B<returns> the argument. So both of the following is |
| 635 |
|
|
valid and C<$word> will contain the lowercased string. |
| 636 |
|
|
|
| 637 |
|
|
$word = disolc($word); |
| 638 |
|
|
disolc($word); |
| 639 |
|
|
|
| 640 |
|
|
|
| 641 |
|
|
Here are the hardcoded characters which are recognized: |
| 642 |
|
|
|
| 643 |
|
|
abcdefghijklmnopqrstuvwxyzàáâãäåæçèéêëìíîïñòóôõöøùúûüýß |
| 644 |
|
|
ABCDEFGHIJKLMNOPQRSTUVWXYZÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÑÒÓÔÕÖØÙÚÛÜÝß |
| 645 |
|
|
|
| 646 |
|
|
=item C<$new = >B<isolc>C<($word)> |
| 647 |
|
|
|
| 648 |
|
|
=item B<disolc>C<($word)> |
| 649 |
|
|
|
| 650 |
|
|
transposes to lower case. |
| 651 |
|
|
|
| 652 |
|
|
=item C<$new = >B<isouc>C<($word)> |
| 653 |
|
|
|
| 654 |
|
|
=item B<disouc>C<($word)> |
| 655 |
|
|
|
| 656 |
|
|
transposes to upper case. |
| 657 |
|
|
|
| 658 |
|
|
=head1 AUTHOR |
| 659 |
|
|
|
| 660 |
|
|
Ulrich Pfeifer E<lt>F<pfeifer@ls6.informatik.uni-dortmund.de>E<gt> |
| 661 |
|
|
|
| 662 |
|
|
=head1 SEE ALSO |
| 663 |
|
|
|
| 664 |
|
|
perl(1). |
| 665 |
|
|
|
| 666 |
|
|
=cut |
| 667 |
|
|
|
Parent Directory
| 
Revision Log