/**
* return the start position of the longest valid noun before the start position
*
* @param output analysis output
* @param start start position
* @param inputText input text
* @param isLast whether if this is the last word.
* @return the start position of the longest valid noun
*/
private int validWord(AnalysisOutput output, int start, String inputText, boolean isLast) {
int newStart = -1;
if (output.getScore() != AnalysisOutput.SCORE_CORRECT
|| start == 0
|| output.getSource().length() < 2) return newStart;
if (!isLast && output.getJosa() == null && output.getEomi() == null) return newStart;
if (output.getScore() == AnalysisOutput.SCORE_CORRECT) newStart = start;
// the word with greater than 6 length doesn't exist
int minPos = start - 6;
if (minPos < 0) minPos = 0;
for (int i = start - 1; i >= minPos; i--) {
String word = inputText.substring(i, start) + output.getStem();
if (DictionaryUtil.getWord(word) != null) {
newStart = i;
}
}
return newStart;
}
