private static <NodeT extends ConstituentNode<NodeT, ?>>
ImmutableMap<Symbol, HeadRule<NodeT>> headRulesFromResources(final CharSource charSource)
throws IOException {
final ImmutableMap.Builder<Symbol, HeadRule<NodeT>> ret = ImmutableMap.builder();
for (final Map.Entry<Symbol, HeadRule<NodeT>> e :
FluentIterable.from(charSource.readLines())
.transform(StringUtils.Trim)
.filter(Predicates.not(StringUtils.startsWith("#")))
.filter(Predicates.not(StringUtils.isEmpty()))
.transform(PatternMatchHeadRule.<NodeT>fromHeadRuleFileLine())) {
ret.put(e.getKey(), e.getValue());
}
return ret.build();
}
private static final ImmutableSet<ImmutableSet<Integer>> parseClustering(String s) {
final ImmutableSet.Builder<ImmutableSet<Integer>> ret = ImmutableSet.builder();
// strip parens
for (final String inParens : StringUtils.onSpaces().split(s)) {
final String withinParens = inParens.substring(1, inParens.length() - 1);
final ImmutableSet.Builder<Integer> cluster = ImmutableSet.builder();
for (final String number : StringUtils.onCommas().split(withinParens)) {
// strip parens before parsing
cluster.add(Integer.parseInt(number));
}
ret.add(cluster.build());
}
return ret.build();
}