1 files changed, 50 insertions, 0 deletions
diff --git a/corpus/paste-files.pl b/corpus/paste-files.pl
new file mode 100755
index 00000000..24c70599
--- /dev/null
+++ b/corpus/paste-files.pl
@@ -0,0 +1,50 @@
+#!/usr/bin/perl -w
+use strict;
+
+die "Usage: $0 file1.txt file2.txt [file3.txt ...]\n\n  Performs a per-line concatenation of all files using the ||| seperator.\n\n" unless scalar @ARGV > 1;
+
+my @fhs = ();
+for my $file (@ARGV) {
+  my $fh;
+  if ($file =~ /\.gz$/) {
+    open $fh, "gunzip -c $file|" or die "Can't fork gunzip -c $file: $!";
+  } else {
+    open $fh, "<$file" or die "Can't read $file: $!";
+  }
+  binmode($fh,":utf8");
+  push @fhs, $fh;
+}
+binmode(STDOUT,":utf8");
+binmode(STDERR,":utf8");
+
+my $lc = 0;
+my $done = 0;
+my $fl = 0;
+while(1) {
+  my @line;
+  $lc++;
+  if ($lc % 100000 == 0) { print STDERR " [$lc]\n"; $fl = 0; }
+  elsif ($lc % 2500 == 0) { print STDERR "."; $fl = 1; }
+  my $anum = 0;
+  for my $fh (@fhs) {
+    my $r = <$fh>;
+    if (!defined $r) {
+      die "Mismatched number of lines.\n" if scalar @line > 0;
+      $done = 1;
+      last;
+    }
+    chomp $r;
+    die "$ARGV[$anum]:$lc contains a ||| symbol - please remove.\n" if $r =~ /\|\|\|/;
+    $anum++;
+    push @line, $r;
+  }
+  last if $done;
+  print STDOUT join(' ||| ', @line) . "\n";
+}
+print STDERR "\n" if $fl;
+for (my $i = 1; $i < scalar @fhs; $i++) {
+  my $fh = $fhs[$i];
+  my $r = <$fh>;
+  die "Mismatched number of lines.\n" if defined $r;
+}
+