From 06f5b0359dadcbfd663c8f585358805fbff181ab Mon Sep 17 00:00:00 2001
From: Chris Dyer <redpony@gmail.com>
Date: Tue, 28 Jan 2014 19:50:03 -0500
Subject: smarter script for adding <s> and </s> markers

---
 corpus/add-sos-eos.pl | 71 +++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 55 insertions(+), 16 deletions(-)

(limited to 'corpus')

diff --git a/corpus/add-sos-eos.pl b/corpus/add-sos-eos.pl
index 5e2d44cb..d7608c5e 100755
--- a/corpus/add-sos-eos.pl
+++ b/corpus/add-sos-eos.pl
@@ -1,24 +1,63 @@
 #!/usr/bin/perl -w
 use strict;
 
-while(<>) {
+die "Usage: $0 corpus.fr[-en1-en2-...] [corpus.al out-corpus.al]\n" unless (scalar @ARGV == 1 || scalar @ARGV == 3);
+my $filec = shift @ARGV;
+my $filea = shift @ARGV;
+my $ofilea = shift @ARGV;
+open C, "<$filec" or die "Can't read $filec: $!";
+if ($filea) {
+  open A, "<$filea" or die "Can't read $filea: $!";
+  open OA, ">$ofilea" or die "Can't write $ofilea: $!";
+}
+binmode(C, ":utf8");
+binmode(STDOUT, ":utf8");
+print STDERR "Adding <s> and </s> markers to input...\n";
+print STDERR "    Reading corpus: $filec\n";
+print STDERR "    Writing corpus: STDOUT\n";
+print STDERR "Reading alignments: $filea\n" if $filea;
+print STDERR "Writing alignments: $ofilea\n" if $filea;
+
+my $lines = 0;
+while(<C>) {
+  $lines++;
+  die "ERROR. Input line $filec:$lines should not contain SGML markup" if /<seg /;
+  if ($lines % 100000 == 0) { print STDERR " [$lines]\n"; }
+  elsif ($lines % 2500 == 0) { print STDERR "."; }
   chomp;
   my @fields = split / \|\|\| /;
-  my ($ff, $ee, $aa) = @fields;
-  die "Expected: foreign ||| target ||| alignments" unless scalar @fields == 3;
-  my @fs = split /\s+/, $ff;
-  my @es = split /\s+/, $ee;
-  my @as = split /\s+/, $aa;
-  my @oas = ();
-  push @oas, '0-0';
-  my $flen = scalar @fs;
-  my $elen = scalar @es;
-  for my $ap (@as) {
-    my ($a, $b) = split /-/, $ap;
-    die "Bad format in: @as" unless defined $a && defined $b;
-    push @oas, ($a + 1) . '-' . ($b + 1);
+  my $o = '';
+  for my $field (@fields) {
+    $o .= " ||| <s> $field </s>";
   }
-  push @oas, ($flen + 1) . '-' . ($elen + 1);
-  print "<s> $ff </s> ||| <s> $ee </s> ||| @oas\n";
+  $o =~ s/^ \|\|\| //;
+  if ($filea) {
+    my $aa = <A>;
+    die "ERROR. Mismatched number of lines between $filec and $filea\n" unless $aa;
+    chomp $aa;
+    my ($ff, $ee) = @fields;
+    die "ERROR in $filec:$lines: expected 'source ||| target'" unless defined $ee;
+    my @fs = split /\s+/, $ff;
+    my @es = split /\s+/, $ee;
+    my @as = split /\s+/, $aa;
+    my @oas = ();
+    push @oas, '0-0';
+    my $flen = scalar @fs;
+    my $elen = scalar @es;
+    for my $ap (@as) {
+      my ($a, $b) = split /-/, $ap;
+      die "ERROR. Bad format in: @as" unless defined $a && defined $b;
+      push @oas, ($a + 1) . '-' . ($b + 1);
+    }
+    push @oas, ($flen + 1) . '-' . ($elen + 1);
+    print OA "@oas\n";
+  }
+  print "$o\n";
+}
+if ($filea) {
+  close OA;
+  my $aa = <A>;
+  die "ERROR. Alignment input file $filea contains more lines than corpus file!\n" if $aa;
 }
+print STDERR "\nSUCCESS. Processed $lines lines.\n";
 
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