use strict;
use warnings;
-use Encode qw/ encode_utf8 decode_utf8 /;
-use IPC::Run qw/ run /;
-use Lingua::TagSet::TreeTagger;
-use Module::Load;
-use Text::Tradition::Collation::Reading::Lexeme;
-use Text::Tradition::Collation::Reading::WordForm;
+use Text::Tradition::Language::Base qw/ lemmatize_treetagger reading_lookup_treetagger /;
use TryCatch;
-my $MORPHDIR = '/Users/tla/Projects/morphology';
-
=head1 NAME
Text::Tradition::Language::English - language-specific module for English
sub lemmatize {
my $tradition = shift;
-
- # Given a tradition, lemmatize it witness by witness and see what we get.
- my $workdir = File::Temp->newdir();
- my $c = $tradition->collation;
- # First, clear out all existing lexemes from the readings. Save the
- # path as long as we went to the trouble of generating it.
- my %witness_paths;
- foreach my $wit ( $tradition->witnesses ) {
- my @sigla = ( $wit->sigil );
- push( @sigla, $wit->sigil . $c->ac_label ) if $wit->is_layered;
- foreach my $sig ( @sigla ) {
- my @path = grep { !$_->is_meta }
- $c->reading_sequence( $c->start, $c->end, $sig );
- map { $_->clear_lexemes } @path;
- $witness_paths{$sig} = \@path;
- }
- }
-
- foreach my $sig ( keys %witness_paths ) {
- # Get the text as a sequence of readings and as a string
- print STDERR "Morphologizing witness $sig\n";
- _lemmatize_sequence( undef, @{$witness_paths{$sig}} );
- }
-}
-
-sub _update_reading_lexemes {
- my( $replace, $reading, @lexemes ) = @_;
- if( $reading->has_lexemes && !$replace ) {
- # We need to merge what is in @lexemes with what we have already.
- my @oldlex = $reading->lexemes;
- my $cmp1 = join( '||', map { $_->string } @oldlex );
- my $cmp2 = join( '||', map { $_->string } @lexemes );
- if ( @oldlex == @lexemes && $cmp1 eq $cmp2 ) {
- # The lexeme strings are the same, so merge the possible
- # word forms from new to old.
- foreach my $i ( 0 .. $#lexemes ) {
- my $ol = $oldlex[$i];
- my $nl = $lexemes[$i];
- my %ofw;
- map { $ofw{$_->to_string} = 1 } $ol->matching_forms;
- foreach my $form ( $nl->matching_forms ) {
- unless( $ofw{$form->to_string} ) {
- print STDERR "Adding form " . $form->to_string .
- " to lexeme " . $nl->string . " at $reading\n";
- $ol->add_matching_form( $form );
- $ol->is_disambiguated(0);
- }
- }
- }
- } else {
- warn "Lexeme layout for $reading changed; replacing the lot";
- $reading->clear_lexemes;
- $reading->add_lexeme( @lexemes );
- }
- } else {
- $reading->clear_lexemes if $replace;
- $reading->add_lexeme( @lexemes );
- }
+ my %opts = (
+ 'language' => 'English',
+ 'callback' => sub { _parse_wordform( @_ ) }
+ );
+ return lemmatize_treetagger( $tradition, %opts );
}
=head2 reading_lookup( $rdg[, $rdg, ...] )
=cut
sub reading_lookup {
- return _lemmatize_sequence( 1, @_ );
-}
-
-sub _lemmatize_sequence {
- my( $replace, @path ) = @_;
- my $tagresult = _treetag_string( _text_from_path( 1, @path ) );
- if( $tagresult ) {
- # Map the tagged words onto the original readings, splitting
- # them up into lexemes where necessary.
- # NOTE we can have multiple lexemes in a reading, but not
- # multiple readings to a lexeme.
- my @tags = split( /\n/, $tagresult );
- my @lexemes;
- my $curr_rdg = shift @path;
- my @curr_lexemes;
- my $unused_rdg_part;
- foreach my $tag ( @tags ) {
- # Get the original word
- my( $lexeme, @rest ) = split( /\t/, $tag );
- # Lemmatize the whole
- my @forms = _parse_wordform( $tag );
- my $lexobj = Text::Tradition::Collation::Reading::Lexeme->new(
- 'string' => $lexeme, 'language' => 'English',
- 'wordform_matchlist' => \@forms );
- # Find the next non-meta reading
- while( $curr_rdg && $curr_rdg->is_meta ) {
- $curr_rdg = shift @path;
- }
- unless( $curr_rdg ) {
- warn "Ran out of readings in sequence at $lexeme";
- last;
- }
- my $curr_rdg_text = $curr_rdg->has_normal_form
- ? $curr_rdg->normal_form : $curr_rdg->text;
- if( $unused_rdg_part &&
- $unused_rdg_part =~ /^\Q$lexeme\E(\s*)(.*)$/ ) {
- # Nth part of curr_rdg
- $unused_rdg_part = $2;
- push( @curr_lexemes, $lexobj );
- } elsif( $curr_rdg_text =~ /^\Q$lexeme\E(\s*)(.*)$/ ) {
- # Flag an error if there is already an unused reading part.
- warn "Skipped over unused text $unused_rdg_part at $curr_rdg"
- if $unused_rdg_part;
- $unused_rdg_part = $2; # will be empty if the whole reading matched
- push( @curr_lexemes, $lexobj );
- } else {
- # We do not cope with the idea of a lexeme being
- # spread across multiple readings.
- warn "Word sequence changed unexpectedly in text";
- # See if we can find a matching reading
- my @lookahead;
- my $matched;
- while( my $nr = shift @path ) {
- my $nrtext = $nr->has_normal_form ? $nr->normal_form : $nr->text;
- if( $nrtext =~ /^\Q$lexeme\E/ ) {
- $curr_rdg = $lookahead[-1] if @lookahead;
- $matched = 1;
- last;
- } else {
- push( @lookahead, $nr );
- }
- }
- # No match? Restore the state we had
- unless( $matched ) {
- unshift( @path, @lookahead );
- }
- # Trigger a move
- $unused_rdg_part = '';
- }
-
- unless( $unused_rdg_part ) {
- # Record the lexemes for the given reading.
- #print STDERR sprintf( "Adding lexeme(s) %s to reading %s (%s)\n",
- # join( ' ', map { $_->string } @curr_lexemes ),
- # $curr_rdg->id, $curr_rdg->text );
- _update_reading_lexemes( $replace, $curr_rdg, @curr_lexemes );
- $curr_rdg = shift @path;
- @curr_lexemes = ();
- }
- }
- }
-}
-
-# Utility function so that we can cheat and use it when we need both the path
-# and its text.
-sub _text_from_path {
- my( $normalize, @path ) = @_;
- my $pathtext = '';
- my $last;
- foreach my $r ( @path ) {
- unless ( $r->join_prior || !$last || $last->join_next ) {
- $pathtext .= ' ';
- }
- $pathtext .= ( $normalize && $r->has_normal_form )
- ? $r->normal_form : $r->text;
- $last = $r;
- }
- return $pathtext;
-}
-
-# Utility function that actually calls the tree tagger.
-sub _treetag_string {
- my( $text ) = @_;
- my $wittext = encode_utf8( $text );
- # Then see if we have TreeTagger
- my $taggercmd = "$MORPHDIR/TreeTagger/cmd/tree-tagger-english";
- unless( -f $taggercmd ) {
- warn "Cannot do English word lemmatization without TreeTagger";
- return;
- }
- # OK, we can run it then.
- my @cmd = ( $taggercmd );
- my( $tagresult, $err ); # Capture the output and error
- run( \@cmd, \$wittext, \$tagresult, \$err );
- # TODO check for error
- return decode_utf8( $tagresult );
+ my( @path ) = @_;
+ my %opts = (
+ 'language' => 'French',
+ 'callback' => sub { _parse_wordform( @_ ) },
+ 'path' => \@path,
+ );
+ return reading_lookup_treetagger( %opts );
}
# Utility function to turn a TreeTagger result into a WordForm
=over
-=item * Handle package dependencies more gracefully
-
-=item * Refactor English/French use of TreeTagger into its own util package
+=item * Tests!
=back