/**
* Returns the string of words for this token, each with the starting sample number as the
* timestamp. This method assumes that the word tokens come after the unit and hmm tokens.
*
* @return the string of words, each with the starting sample number
*/
private String getTimedWordTokenLastPath(Token token, boolean wantFiller) {
StringBuilder sb = new StringBuilder();
Word word = null;
Data lastFeature = null;
Data lastWordFirstFeature = null;
while (token != null) {
if (token.isWord()) {
if (word != null && lastFeature != null) {
if (wantFiller || !word.isFiller()) {
addWord(sb, word, (FloatData) lastFeature, (FloatData) lastWordFirstFeature);
}
word = token.getWord();
lastWordFirstFeature = lastFeature;
}
word = token.getWord();
}
Data feature = token.getData();
if (feature != null) {
lastFeature = feature;
if (lastWordFirstFeature == null) {
lastWordFirstFeature = lastFeature;
}
}
token = token.getPredecessor();
}
return sb.toString();
}
/**
* Returns the string of words (with timestamp) for this token. This method assumes that the word
* tokens come before other types of token.
*
* @param wantFiller true if we want filler words, false otherwise
* @return the string of words
*/
private String getTimedWordPath(Token token, boolean wantFiller) {
StringBuilder sb = new StringBuilder();
// get to the first emitting token
while (token != null && !token.isEmitting()) {
token = token.getPredecessor();
}
if (token != null) {
Data lastWordFirstFeature = token.getData();
Data lastFeature = lastWordFirstFeature;
token = token.getPredecessor();
while (token != null) {
if (token.isWord()) {
Word word = token.getWord();
if (wantFiller || !word.isFiller()) {
addWord(sb, word, (FloatData) lastFeature, (FloatData) lastWordFirstFeature);
}
lastWordFirstFeature = lastFeature;
}
Data feature = token.getData();
if (feature != null) {
lastFeature = feature;
}
token = token.getPredecessor();
}
}
return sb.toString();
}
