| #!/usr/bin/perl -w |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| my $flm_in = $ARGV[0]; |
| my $fvoc = $ARGV[1]; |
| my $fout = $ARGV[2]; |
| |
| my %eng_voc=(); |
| read_hash_tbl($fvoc, \%eng_voc); |
| my @tem = keys %eng_voc; |
| |
| print STDERR "voc size is $#tem+1\n"; |
| |
| my $n_bow_nodes=0; |
| #filter LM |
| open(FLM, $flm_in) or die "cannot open file $flm_in\n"; |
| open(FOUT, ">$fout") or die "cannot open file $fout\n"; |
| my $order=-1; |
| my $count=0; |
| while(my $line=<FLM>){ |
| if($line =~ m/^\s+$/){ #blank line |
| print FOUT "\n"; |
| next; |
| } |
| chomp($line); |
| $line =~ s/^\s+//g; |
| $line =~ s/\s+$//g; |
| if($line =~ m/^\\(\d)-grams:$/){ |
| print STDERR "count of old order($order) is $count\n"; |
| print STDERR "num of bow nodes is $n_bow_nodes\n"; |
| $n_bow_nodes=0; |
| $count=0; |
| $order=$1; |
| print FOUT "$line\n"; |
| print STDERR "order is $order\n"; |
| next; |
| } |
| my @fds=split(/\s+/,$line); |
| if(@fds<$order+1){ |
| print FOUT "$line\n"; |
| next; #bad lines |
| } |
| if(@fds==$order+2){ |
| $n_bow_nodes++; |
| } |
| |
| my $keep=1; |
| for(my $i=1; $i<=$order; $i++){ |
| #$fds[$i] =~ s/[[:^print:]]+//g; #remove all unprintable characters |
| if(not exists $eng_voc{$fds[$i]}){ |
| $keep=0; |
| last; |
| } |
| } |
| |
| my $t_line = join(' ', @fds); |
| #print STDERR "line: $t_line ||| keep: $keep\n"; |
| |
| if($keep == 1){ |
| $count++; |
| print FOUT "$line\n"; |
| } |
| } |
| print STDERR "count of old order($order) is $count\n"; |
| |
| close(FLM); |
| close(FOUT); |
| |
| |
| sub read_hash_tbl { |
| my ($file, $p_tbl)=@_; |
| open(FILE, $file) or die "cannot open file $file\n"; |
| while(my $line=<FILE>){ |
| next if($line =~ m/^\s+$/); #blank line |
| chomp($line); |
| $line =~ s/^\s+//g; |
| $line =~ s/\s+$//g; |
| $p_tbl->{"$line"}=1; |
| } |
| close(FILE); |
| } |
| |
| |