#!/usr/bin/env bash
  
  # Gets lattice oracles
  
  if [ $# -lt 3 ]; then
      echo "Specify lattice dir, symbol table and text file for partition"
      exit 1;
  fi
  
  latticeDir=$1
  textFile=$3
  symTable=$2
  oracleDir=$latticeDir/oracle
  
  echo $latticeDir
  echo $oracleDir
  
  . ./path.sh
  
  if [ ! -f $textFile -o ! -f $symTable -o ! -d $latticeDir ]; then
      echo "Required files not found"
      exit 1;
  fi
  
  mkdir -p $oracleDir
  
  # Since the lexicon is built from the LDC lexicon, there are words in the dataset
  # that do not appear in the lexicon. These have to marked as OOV. 
  # Removing [hes] symbols as well. This is not consistent with the scoring scheme used
  # while scoring 1-best. 
  cat $textFile | sed 's:\[laughter\]::g' | sed 's:\[noise\]::g' | sed 's:\[hes\]::g' | \
      utils/sym2int.pl --map-oov [oov] -f 2- $symTable | \
      $KALDI_ROOT/src/latbin/lattice-oracle --word-symbol-table=$symTable "ark:gunzip -c $latticeDir/lat.*.gz|" ark:- ark,t:$oracleDir/oracle.tra 2>$oracleDir/oracle.log
  
  sort -k1,1 -u $oracleDir/oracle.tra -o $oracleDir/oracle.tra