private void wordIsColon(final Tokens tokens, final Token t) {
// check we can get a previous and next word to merge together
if (!currentSentence.isEmpty() && tokens.hasNext()) {
// if the colon does not have a space on either side
if (!isSpaceChar(lastChar(tokens.peekPrev().text))
&& !isSpaceChar(initChar(tokens.peekNext().text))) {
// try to merge the 3 tokens back together again
final int prevWordIndex = currentSentence.size() - 1;
final Token prevSentenceWord = currentSentence.get(prevWordIndex);
mergeWordsIntoSentence(prevSentenceWord, t, tokens.next(), prevWordIndex);
} else currentSentence.add(t);
} else currentSentence.add(t);
}