mirror of
https://github.com/pragma-/pbot.git
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649 lines
17 KiB
Perl
Executable File
Vendored
649 lines
17 KiB
Perl
Executable File
Vendored
#!/usr/bin/perl -w
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=cut
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eval 'exec /usr/bin/perl -w -S $0 ${1+"$@"}'
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if 0; # not running under some shell
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=cut
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#
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# dict - perl DICT client (for accessing network dictionary servers)
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#
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# $Id: dict,v 1.2 2003/05/05 23:55:00 neilb Exp $
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#
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# modified by pragma_ for pbot IRC Perl bot
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# changed output to be more IRC-friendly
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# set default database to wn
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# created dict_hash subroutine to split definition string into hash table grouped by type (verb, noun, etc) and definition number
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# added -t and -n options to display results with type (v, n, *, etc) and starting from number
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use strict;
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use Net::Dict;
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use AppConfig::Std;
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use vars qw($VERSION);
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$VERSION = sprintf("%d.%d", q$Revision: 1.2 $ =~ /(\d+)\.(\d+)/);
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#-----------------------------------------------------------------------
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# Global variables
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#-----------------------------------------------------------------------
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my $PROGRAM; # The name we're running as, minus path
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my $config; # Config object (AppConfig::Std)
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my $dict; # Dictionary object (Net::Dict)
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initialise();
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#-----------------------------------------------------------------------
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# Deal with any informational options
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#-----------------------------------------------------------------------
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=cut
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print $dict->serverInfo(), "\n" if $config->serverinfo;
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show_db_info($config->info) if $config->info;
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list_databases() if $config->dbs;
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list_strategies() if $config->strats;
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=cut
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if ($config->database) {
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$dict->setDicts($config->database);
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} else {
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$dict->setDicts('wn');
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}
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#-----------------------------------------------------------------------
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# Perform define or match, if a word or pattern was given
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#-----------------------------------------------------------------------
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if (@ARGV > 0)
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{
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=cut
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if ($config->match)
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{
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match_word(shift @ARGV);
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}
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else
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{
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=cut
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define_word(join ' ', @ARGV);
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=cut
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}
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=cut
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} else {
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print "Usage: dict [-d database] [-n start from definition number] [-t abbreviation of word class type (n]oun, v]erb, adv]erb, adj]ective, etc)] [-search <regex> for definitions matching <regex>] <word>\n";
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exit 0;
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}
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exit 0;
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#=======================================================================
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#
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# define_word()
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#
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# Look up definition(s) for the specified word.
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#
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#=======================================================================
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sub define_word
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{
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my $word = shift;
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my $eref;
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my $entry;
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my ($db, $def);
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$eref = $dict->define($word);
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if (@$eref == 0)
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{
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_no_definitions($word);
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}
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else
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{
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foreach $entry (@$eref)
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{
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($db, $def) = @$entry;
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my $defs = dict_hash($def);
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print "$defs->{word}: ";
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my $comma = '';
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my $def_type = $config->def_type;
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my $def_contains = $config->def_contains;
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# normalize '*' to '.*'
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$def_type =~ s/\.\*/*/g;
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$def_type =~ s/\*/.*/g;
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# normalize '*' to '.*'
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$def_contains =~ s/\.\*/*/g;
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$def_contains =~ s/\*/.*/g;
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my $defined = 0;
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eval {
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foreach my $type (keys %$defs) {
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next if $type eq 'word';
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next unless $type =~ m/$def_type/i;
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print "$comma$type: " if length $type;
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foreach my $number (sort { $a <=> $b } keys %{ $defs->{$type} }) {
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next unless $number >= $config->def_number;
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next unless $defs->{$type}{$number} =~ m/$def_contains/i;
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print "$comma" unless $number == 1;
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print "$number) $defs->{$type}{$number}";
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$comma = ",\n\n";
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$defined = 1;
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}
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}
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};
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if ($@) {
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print "Error in -t parameter. Use v, n, *, etc.\n";
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exit 0;
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}
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if (not $defined && $def_type ne '*') {
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my $types = '';
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$comma = '';
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foreach my $type (sort keys %$defs) {
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next if $type eq 'word';
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$types .= "$comma$type";
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$comma = ', ';
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}
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if (length $types) {
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print "no `$def_type` definition found; available definitions: $types.\n";
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} else {
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print "no definition found.\n";
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}
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} elsif (not $defined) {
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print "no definition found.\n";
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}
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}
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}
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}
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sub dict_hash {
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my $def = shift;
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my $defs = {};
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$def =~ s/{([^}]+)}/$1/g;
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my @lines = split /[\n\r]/, $def;
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$defs->{word} = shift @lines;
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my ($type, $number, $text) = ('', 1, '');
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foreach my $line (@lines) {
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$line =~ s/^\s+//;
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$line =~ s/\s+$//;
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$line =~ s/\s+/ /g;
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if ($line =~ m/^([a-z]+) (\d+): (.*)/i) {
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($type, $number, $text) = ($1, $2, $3);
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}
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elsif ($line =~ m/^(\d+): (.*)/i) {
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($number, $text) = ($1, $2);
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}
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else {
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$text = $line;
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}
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$text = " $text" if exists $defs->{$type}{$number};
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$defs->{$type}{$number} .= $text;
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}
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return $defs;
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}
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#=======================================================================
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#
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# _no_definitions()
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#
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# Called when no definitions were found for the given word.
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# We use either 'lev' or 'soundex' matching to look for words
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# which are "close" to the given word, in-case they've mis-spelled
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# it, etc.
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#
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#=======================================================================
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sub _no_definitions
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{
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my $word = shift;
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my %strategies;
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my %words;
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my $strategy;
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%strategies = $dict->strategies;
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if (!exists($strategies{'lev'}) && !exists($strategies{'soundex'}))
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{
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print "no definition found for \"$word\"\n";
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return;
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}
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$strategy = exists $strategies{'lev'} ? 'lev' : 'soundex';
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foreach my $entry (@{ $dict->match($word, $strategy) })
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{
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$words{$entry->[1]}++;
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}
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if (keys %words == 0)
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{
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print "no definition found for \"$word\", ",
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"and no similar words found\n";
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}
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else
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{
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print "no definition found for \"$word\" - perhaps you meant: ", join(', ', keys %words), "\n";
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}
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}
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#=======================================================================
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#
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# match_word()
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#
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# Look for matches of the given word, using the strategy specified
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# with the -strategy switch.
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#
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#=======================================================================
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sub match_word
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{
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my $word = shift;
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my $eref;
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my $entry;
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my ($db, $match);
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unless ($config->strategy)
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{
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die "you must specify -strategy when using -match\n";
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}
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$eref = $dict->match($word, $config->strategy);
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if (@$eref == 0)
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{
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print "no matches for \"$word\"\n";
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}
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else
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{
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foreach $entry (@$eref)
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{
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($db, $match) = @$entry;
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print "$db : $match\n";
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}
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}
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}
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#=======================================================================
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#
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# list_databases()
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#
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# Query and display the list of available databases on the selected
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# DICT server.
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#
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#=======================================================================
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sub list_databases
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{
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my %dbs = $dict->dbs();
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tabulate_hash(\%dbs, 'Database', 'Description');
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}
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#=======================================================================
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#
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# list_strategies()
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#
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# Query and display the list of matching strategies supported
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# by the DICT server.
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#
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#=======================================================================
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sub list_strategies
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{
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my %strats = $dict->strategies();
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tabulate_hash(\%strats, 'Strategy', 'Description');
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}
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#=======================================================================
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#
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# show_db_info()
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#
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# Query the server for information about the specified database,
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# and display the results.
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#
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# The information is typically several pages of text,
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# describing the contents of the dictionary, where it came from,
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# credits, etc.
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#
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#=======================================================================
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sub show_db_info
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{
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my $db = shift;
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my %dbs = $dict->dbs();
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if (not exists $dbs{$config->info})
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{
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print " dictionary \"$db\" not known\n";
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return;
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}
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print $dict->dbInfo($config->info);
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}
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#=======================================================================
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#
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# initialise()
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#
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# check config file and command-line
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#
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#=======================================================================
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sub initialise
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{
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#-------------------------------------------------------------------
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# Initialise misc global variables
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#-------------------------------------------------------------------
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($PROGRAM = $0) =~ s!.*/!!;
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#-------------------------------------------------------------------
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# Create AppConfig::Std, define parameters, and parse command-line
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#-------------------------------------------------------------------
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$config = AppConfig::Std->new({ CASE => 1 })
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|| die "failed to create AppConfig::Std: $!\n";
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$config->define('host', { ARGCOUNT => 1, ALIAS => 'h' });
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$config->define('port', { ARGCOUNT => 1, ALIAS => 'p',
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DEFAULT => 2628 });
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$config->define('database', { ARGCOUNT => 1, ALIAS => 'd' });
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$config->define('def_number', { ARGCOUNT => 1, ALIAS => 'n', DEFAULT => 1 });
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$config->define('def_type', { ARGCOUNT => 1, ALIAS => 't', DEFAULT => '*'});
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$config->define('def_contains', { ARGCOUNT => 1, ALIAS => 'search', DEFAULT => '*'});
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=cut
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$config->define('match', { ARGCOUNT => 0, ALIAS => 'm' });
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$config->define('dbs', { ARGCOUNT => 0, ALIAS => 'D' });
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$config->define('strategy', { ARGCOUNT => 1, ALIAS => 's' });
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$config->define('strats', { ARGCOUNT => 0, ALIAS => 'S' });
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=cut
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$config->define('client', { ARGCOUNT => 1, ALIAS => 'c',
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DEFAULT => "$PROGRAM $VERSION ".
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"[using Net::Dict $Net::Dict::VERSION]",
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});
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=cut
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$config->define('info', { ARGCOUNT => 1, ALIAS => 'i' });
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$config->define('serverinfo', { ARGCOUNT => 0, ALIAS => 'I' });
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$config->define('verbose', { ARGCOUNT => 0 });
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=cut
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if (not $config->args(\@ARGV)) {
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print "Usage: dict [-d database] [-n start from definition number] [-t abbreviation of word class type (n]oun, v]erb, adv]erb, adj]ective, etc)] [-search <regex> for definitions matching <regex>] <word>\n";
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exit;
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}
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#-------------------------------------------------------------------
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# Consistency checking, ensure we have required options, etc.
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#-------------------------------------------------------------------
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$config->host('dict.org') unless $config->host;
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print $config->client, "\n" if $config->verbose || $config->debug;
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#-------------------------------------------------------------------
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# Create connection to DICT server
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#-------------------------------------------------------------------
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$dict = Net::Dict->new($config->host,
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Port => $config->port,
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Client => $config->client,
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Debug => $config->debug,
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)
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|| die "failed to create Net::Dict: $!\n";
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}
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#=======================================================================
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#
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# tabulate_hash()
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#
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# format a hash as a simple ascii table, for displaying lists
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# of databases and strategies.
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#
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#=======================================================================
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sub tabulate_hash
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{
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my $hashref = shift;
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my $keytitle = shift;
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my $value_title = shift;
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my $width = length $keytitle;
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my ($key, $value);
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#-------------------------------------------------------------------
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# Find the length of the longest key, so we can right align
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# the column of keys
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#-------------------------------------------------------------------
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foreach $key (keys %$hashref)
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{
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$width = length($key) if length($key) > $width;
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}
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#-------------------------------------------------------------------
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# print out keys and values in a basic ascii formatted table view
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#-------------------------------------------------------------------
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printf(" %${width}s $value_title\n", $keytitle);
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print ' ', '-' x $width, ' ', '-' x (length $value_title), "\n";
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while (($key, $value) = each %$hashref)
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{
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printf(" %${width}s : $value\n", $key);
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}
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print "\n";
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}
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__END__
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=head1 NAME
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dict - a perl client for accessing network dictionary servers
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=head1 SYNOPSIS
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B<dict> [OPTIONS] I<word>
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=head1 DESCRIPTION
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B<dict> is a client for the Dictionary server protocol (DICT),
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which is used to query natural language dictionaries hosted on
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a remote machine. When used in the most simple way,
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% dict word
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B<dict> will look for definitions of I<word> in the dictionaries
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hosted at B<dict.org>. If no definitions are found, then dict
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will look for words which are similar, and list them:
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% dict bonana
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no definition for "bonana" - perhaps you meant:
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banana, bonanza, Banana, Bonanza, Bonasa
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This feature is only available if the remote DICT server supports
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the I<soundex> or I<Levenshtein> matching strategies.
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You can use the B<-stats> switch to find out for yourself.
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You can specify the hostname of the DICT server using the B<-h> option:
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% dict -h dict.org dictionary
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A DICT server can support a number of databases;
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you can use the B<-d> option to specify a particular database.
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For example, you can look up computer-related terms
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in the Free On-line Dictionary Of Computing (FOLDOC) using:
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% dict -h dict.org -d foldoc byte
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To find out what databases (dictionaries) are available on
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a server, use the B<-dbs> option:
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% dict -dbs
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There are many dictionaries hosted on other servers around the net;
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a list of some of them can be found at
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http://www.dict.org/links.html
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=head2 MATCHING
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Instead of requesting word definitions, you can use dict
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to request a list of words which match a pattern.
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For example, to look for four-letter words starting in 'b'
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and ending in 'p', you would use:
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% dict -match -strategy re '^b..p$'
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The B<-match> option says you want a list of matching words rather
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than a definition.
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The B<-strategy re> says to use POSIX regular expressions
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when matching the pattern B<^b..p$>.
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Most DICT servers support a number of matching strategies;
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you can get a list of the strategies provided by a server
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using the B<-strats> switch:
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% dict -h dict.org -strats
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=head1 OPTIONS
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=over 4
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=item B<-h> I<server> or B<-host> I<server>
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The hostname for the DICT server. If one isn't specified
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then defaults to B<dict.org>.
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=item B<-p> I<port> or B<-port> I<port>
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Specify the port for connections (default is 2628, from RFC 2229).
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=item B<-d> I<dbname> or B<-database> I<dbname>
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The name of a specific database (dictionary) to query.
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=item B<-m> or B<-match>
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Look for words which match the pattern (using the specified strategy).
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=item B<-i> I<dbname> or B<-info> I<dbname>
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Request information on the specified database.
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Typically results in a couple of pages of text.
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=item B<-c> I<string> or B<-client> I<string>
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Specify the CLIENT identification string sent to the DICT server.
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=item B<-D> or B<-dbs>
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List the available databases (dictionaries) on the DICT server.
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=item B<-s> I<strategy> or B<-strategy> I<strategy>
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Specify a matching strategy. Used in combination with B<-match>.
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=item B<-S> or B<-strats>
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List the matching strategies (used in -strategy) supported
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by the DICT server.
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=item B<-I> or B<-serverinfo>
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Request information on the selected DICT server.
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=item B<-help>
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Display a short help message including command-line options.
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=item B<-doc>
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Display the full documentation for B<dict>.
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=item B<-version>
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Display the version of B<dict>
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=item B<-verbose>
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Display verbose information as B<dict> runs.
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=item B<-debug>
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Display debugging information as B<dict> runs.
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Useful mainly for developers.
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=back
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=head1 KNOWN BUGS AND LIMITATIONS
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=over 4
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=item *
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B<dict> doesn't know how to handle firewalls.
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=item *
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The authentication aspects of RFC 2229 aren't currently supported.
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=item *
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Display of list results (eg from B<-strats> and B<-dbs>) could be better.
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=item *
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B<dict> isn't very smart at handling combinations of options.
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=item *
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Currently no support for a configuration file - will add one soon.
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=back
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=head1 SEE ALSO
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=over 4
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=item www.dict.org
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The DICT home page, with all sorts of useful information.
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There are a number of other DICT clients available.
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=item dict
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The C dict client written by Rik Faith;
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the options are pretty much lifted from Rik's client.
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=item RFC 2229
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The document which defines the DICT network protocol.
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http://www.cis.ohio-state.edu/htbin/rfc/rfc2229.html
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=item Net::Dict
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The perl module which implements the client API for RFC 2229.
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=back
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=head1 VERSION
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$Revision: 1.2 $
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=head1 AUTHOR
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Neil Bowers <neil@bowers.com>
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=head1 COPYRIGHT
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Copyright (C) 2002 Neil Bowers. All rights reserved.
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This script is free software; you can redistribute it and/or modify
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it under the same terms as Perl itself.
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=cut
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