support kaldi decoder

1 files changed, 71 insertions, 0 deletions

diff --git a/kaldi_decode/utils/int2sym.pl b/kaldi_decode/utils/int2sym.pl
new file mode 100755
index 0000000..d618939
--- /dev/null
+++ b/kaldi_decode/utils/int2sym.pl
@@ -0,0 +1,71 @@
+#!/usr/bin/env perl
+# Copyright 2010-2012 Microsoft Corporation  Johns Hopkins University (Author: Daniel Povey)
+# Apache 2.0.
+
+undef $field_begin;
+undef $field_end;
+
+
+if ($ARGV[0] eq "-f") {
+  shift @ARGV; 
+  $field_spec = shift @ARGV; 
+  if ($field_spec =~ m/^\d+$/) {
+    $field_begin = $field_spec - 1; $field_end = $field_spec - 1;
+  }
+  if ($field_spec =~ m/^(\d*)[-:](\d*)/) { # accept e.g. 1:10 as a courtesty (properly, 1-10)
+    if ($1 ne "") {
+      $field_begin = $1 - 1; # Change to zero-based indexing.
+    }
+    if ($2 ne "") {
+      $field_end = $2 - 1; # Change to zero-based indexing.
+    }
+  }
+  if (!defined $field_begin && !defined $field_end) {
+    die "Bad argument to -f option: $field_spec"; 
+  }
+}
+$symtab = shift @ARGV;
+if(!defined $symtab) {
+    print STDERR "Usage: sym2int.pl [options] symtab [input] > output\n" .
+      "options: [-f (<field>|<field_start>-<field-end>)]\n" .
+      "e.g.: -f 2, or -f 3-4\n";
+    exit(1);
+}
+
+open(F, "<$symtab") || die "Error opening symbol table file $symtab";
+while(<F>) {
+    @A = split(" ", $_);
+    @A == 2 || die "bad line in symbol table file: $_";
+    $int2sym{$A[1]} = $A[0];
+}
+
+sub int2sym {
+    my $a = shift @_;
+    my $pos = shift @_;
+    if($a !~  m:^\d+$:) { # not all digits..
+      $pos1 = $pos+1; # make it one-based.
+      die "int2sym.pl: found noninteger token $a [in position $pos1]\n";
+    }
+    $s = $int2sym{$a};
+    if(!defined ($s)) {
+      die "int2sym.pl: integer $a not in symbol table $symtab.";
+    }
+    return $s;
+}
+
+$error = 0;
+while (<>) {
+  @A = split(" ", $_);
+  for ($pos = 0; $pos <= $#A; $pos++) {
+    $a = $A[$pos];
+    if ( (!defined $field_begin || $pos >= $field_begin)
+         && (!defined $field_end || $pos <= $field_end)) {
+      $a = int2sym($a, $pos);
+    }
+    print $a . " ";
+  }
+  print "\n";
+}
+
+
+