#!/usr/bin/env perl
  # Copyright 2010-2011 Microsoft Corporation
  
  # Licensed 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
  #
  # THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  # KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
  # WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
  # MERCHANTABLITY OR NON-INFRINGEMENT.
  # See the Apache 2 License for the specific language governing permissions and
  # limitations under the License.
  
  
  
  # This program takes on its standard input a list of utterance
  # id's, one for each line. (e.g. 4k0c030a is a an utterance id).
  # It takes as
  # Extracts from the dot files the transcripts for a given
  # dataset (represented by a file list).
  # 
  
  @ARGV == 1 || die "find_transcripts.pl dot_files_flist < utterance_ids > transcripts";
  $dot_flist = shift @ARGV;
  
  open(L, "<$dot_flist") || die "Opening file list of dot files: $dot_flist
  ";
  while(<L>){
      chop;
      m:\S+/(\w{6})00.dot: || die "Bad line in dot file list: $_";
      $spk = $1;
      $spk2dot{$spk} = $_;
  }
  
  
  
  while(<STDIN>){ 
      chop;
      $uttid_orig = $_;
      $uttid = substr $uttid_orig, 0, 8; 
      $uttid =~ m:(\w{6})\w\w: || die "Bad utterance id $_";
      $spk = $1;
      if($spk ne $curspk) {
          %utt2trans = { }; # Don't keep all the transcripts in memory...
          $curspk = $spk;
          $dotfile = $spk2dot{$spk};
          defined $dotfile || die "No dot file for speaker $spk
  ";
          open(F, "<$dotfile") || die "Error opening dot file $dotfile
  ";
          while(<F>) {
              $_ =~ m:(.+)\((\w{8})\)\s*$: || die "Bad line $_ in dot file $dotfile (line $.)
  ";
              $trans = $1;
              $utt = $2;
              $utt2trans{$utt} = $trans;
          }
      }
      if(!defined $utt2trans{$uttid}) {
          print STDERR "No transcript for utterance $uttid (current dot file is $dotfile)
  ";
      } else {
          print "$uttid_orig $utt2trans{$uttid}
  ";
      }
  }