#!/usr/bin/perl -w# Given a moses.ini file and an input text prepare minimized translation# tables and a new moses.ini, so that loading of tables is much faster.# original code by Philipp Koehn# changes by Ondrej Bojaruse strict;my $MAX_LENGTH = 10;# consider phrases in input up to this length# in other words, all phrase-tables will be truncated at least to 10 words per# phrasemy $dir = shift; my $config = shift;my $input = shift;if (!defined $dir || !defined $config || !defined $input) {  print STDERR "usage: filter-model-given-input.pl targetdir moses.ini input.text\n";  exit 1;}$dir = ensure_full_path($dir);# buggy directory in place?if (-d $dir && ! -e "$dir/info") {    print STDERR "The directory $dir exists but does not belong to me. Delete $dir!\n";    exit(1);}# already filtered? check if it can be re-usedif (-d $dir) {    my @INFO = `cat $dir/info`;    chop(@INFO);    if($INFO[0] ne $config        || ($INFO[1] ne $input && 	   $INFO[1].".tagged" ne $input)) {      print STDERR "WARNING: directory exists but does not match parameters:\n";      print STDERR "  ($INFO[0] ne $config || $INFO[1] ne $input)\n";      exit 1;    }    print STDERR "The filtered model was ready in $dir, not doing anything.\n";    exit 0;}# filter the translation and distortion tablessafesystem("mkdir -p $dir") or die "Can't mkdir $dir";# get tables to be filtered (and modify config file)my (@TABLE,@TABLE_FACTORS,@TABLE_NEW_NAME,%CONSIDER_FACTORS);open(INI_OUT,">$dir/moses.ini") or die "Can't write $dir/moses.ini";open(INI,$config) or die "Can't read $config";while(<INI>) {    print INI_OUT $_;    if (/ttable-file\]/) {        while(1) {	           	my $table_spec = <INI>;    	if ($table_spec !~ /^([\d\-]+) ([\d\-]+) (\d+) (\S+)$/) {    	    print INI_OUT $table_spec;    	    last;    	}    	my ($source_factor,$t,$w,$file) = ($1,$2,$3,$4);    	chomp($file);    	push @TABLE, $file;    	my $new_name = "$dir/phrase-table.$source_factor-$t";    	print INI_OUT "$source_factor $t $w $new_name\n";    	push @TABLE_NEW_NAME,$new_name;    	$CONSIDER_FACTORS{$source_factor} = 1;        print STDERR "Considering factor $source_factor\n";    	push @TABLE_FACTORS, $source_factor;        }    }    elsif (/distortion-file/) {        while(1) {    	  my $table_spec = <INI>;    	  if ($table_spec !~ /^([\d\-]+) (\S+) (\d+) (\S+)$/) {    	      print INI_OUT $table_spec;    	      last;    	}    	my ($factors,$t,$w,$file) = ($1,$2,$3,$4);	my $source_factor = $factors;	$source_factor =~ s/\-\d+$//;    	chomp($file);    	push @TABLE,$file;    	$file =~ s/^.*\/+([^\/]+)/$1/g;    	my $new_name = "$dir/$file";	$new_name =~ s/\.gz//;    	print INI_OUT "$factors $t $w $new_name\n";    	push @TABLE_NEW_NAME,$new_name;    	$CONSIDER_FACTORS{$source_factor} = 1;        print STDERR "Considering factor $source_factor\n";    	push @TABLE_FACTORS,$source_factor;        }    }}close(INI);close(INI_OUT);# get the phrase pairs appearing in the input text, up to the $MAX_LENGTHmy %PHRASE_USED;open(INPUT,$input) or die "Can't read $input";while(my $line = <INPUT>) {    chomp($line);    my @WORD = split(/ +/,$line);    for(my $i=0;$i<=$#WORD;$i++) {        for(my $j=0;$j<$MAX_LENGTH && $j+$i<=$#WORD;$j++) {    	foreach (keys %CONSIDER_FACTORS) {    	    my @FACTOR = split(/,/);    	    my $phrase = "";    	    for(my $k=$i;$k<=$i+$j;$k++) {    		my @WORD_FACTOR = split(/\|/,$WORD[$k]);    		for(my $f=0;$f<=$#FACTOR;$f++) {    		    $phrase .= $WORD_FACTOR[$FACTOR[$f]]."|";    		}    		chop($phrase);    		$phrase .= " ";    	    }    	    chop($phrase);    	    $PHRASE_USED{$_}{$phrase}++;    	}        }    }}close(INPUT);# filter filesfor(my $i=0;$i<=$#TABLE;$i++) {    my ($used,$total) = (0,0);    my $file = $TABLE[$i];    my $factors = $TABLE_FACTORS[$i];    my $new_file = $TABLE_NEW_NAME[$i];    print STDERR "filtering $file -> $new_file...\n";    my $openstring;    if ($file =~ /\.gz$/) {      $openstring = "zcat $file |";    } else {      $openstring = "< $file";    }    open(FILE,$openstring) or die "Can't open '$openstring'";    open(FILE_OUT,">$new_file") or die "Can't write $new_file";    while(my $entry = <FILE>) {        my ($foreign,$rest) = split(/ \|\|\| /,$entry,2);        $foreign =~ s/ $//;        if (defined($PHRASE_USED{$factors}{$foreign})) {    	print FILE_OUT $entry;    	$used++;        }        $total++;    }    close(FILE);    close(FILE_OUT);    die "No phrases found in $file!" if $total == 0;    printf STDERR "$used of $total phrases pairs used (%.2f%s) - note: max length $MAX_LENGTH\n",(100*$used/$total),'%';}open(INFO,">$dir/info");print INFO "$config\n$input\n";close(INFO);print "To run the decoder, please call:  moses -f $dir/moses.ini < $input\n";sub safesystem {  print STDERR "Executing: @_\n";  system(@_);  if ($? == -1) {      print STDERR "Failed to execute: @_\n  $!\n";      exit(1);  }  elsif ($? & 127) {      printf STDERR "Execution of: @_\n  died with signal %d, %s coredump\n",          ($? & 127),  ($? & 128) ? 'with' : 'without';      exit(1);  }  else {    my $exitcode = $? >> 8;    print STDERR "Exit code: $exitcode\n" if $exitcode;    return ! $exitcode;  }}sub ensure_full_path {    my $PATH = shift;    return $PATH if $PATH =~ /^\//;    my $dir = `pawd 2>/dev/null`;    if (!$dir) {$dir = `pwd`;}    chomp $dir;    $PATH = $dir."/".$PATH;    $PATH =~ s/[\r\n]//g;    $PATH =~ s/\/\.\//\//g;    $PATH =~ s/\/+/\//g;    my $sanity = 0;    while($PATH =~ /\/\.\.\// && $sanity++<10) {        $PATH =~ s/\/+/\//g;        $PATH =~ s/\/[^\/]+\/\.\.\//\//g;    }    $PATH =~ s/\/[^\/]+\/\.\.$//;    $PATH =~ s/\/+$//;    return $PATH;}