@Nullable
private static ZenCodingNode parse(
@NotNull String text,
@NotNull CustomTemplateCallback callback,
ZenCodingGenerator generator) {
List<ZenCodingToken> tokens = lex(text);
if (tokens == null) {
return null;
}
MyParser parser = new MyParser(tokens, callback, generator);
ZenCodingNode node = parser.parse();
return parser.myIndex == tokens.size() ? node : null;
}