// look up and apply coarts for given rels to each sign in result
private void applyCoarts(List<String> coartRels, Collection<Sign> result) {
List<Sign> inputSigns = new ArrayList<Sign>(result);
result.clear();
List<Sign> outputSigns = new ArrayList<Sign>(inputSigns.size());
// for each rel, lookup coarts and apply to input signs, storing results in output signs
for (Iterator<String> it = coartRels.iterator(); it.hasNext(); ) {
String rel = it.next();
Collection<String> preds = (Collection<String>) _coartRelsToPreds.get(rel);
if (preds == null) continue; // not expected
Collection<Sign> coartResult = getSignsFromRelAndPreds(rel, preds);
if (coartResult == null) continue;
for (Iterator<Sign> it2 = coartResult.iterator(); it2.hasNext(); ) {
Sign coartSign = it2.next();
// apply to each input
for (int j = 0; j < inputSigns.size(); j++) {
Sign sign = inputSigns.get(j);
grammar.rules.applyCoart(sign, coartSign, outputSigns);
}
}
// switch output to input for next iteration
inputSigns.clear();
inputSigns.addAll(outputSigns);
outputSigns.clear();
}
// add results back
result.addAll(inputSigns);
}
