@Nullable
public ZenCodingNode parse() {
ZenCodingNode add = parseAddOrMore();
if (add == null) {
return null;
}
ZenCodingNode result = add;
while (true) {
ZenCodingToken token = getToken();
if (token != ZenCodingTokens.PIPE) {
return result;
}
advance();
token = getToken();
if (!(token instanceof IdentifierToken)) {
return null;
}
final String filterSuffix = ((IdentifierToken) token).getText();
if (!ZenCodingUtil.checkFilterSuffix(filterSuffix)) {
return null;
}
advance();
result = new FilterNode(result, filterSuffix);
}
}
@Nullable
protected ZenCodingNode parseTemplate() {
ZenCodingToken token = getToken();
if (!(token instanceof IdentifierToken)) {
return null;
}
String templateKey = ((IdentifierToken) token).getText();
advance();
TemplateImpl template = myCallback.findApplicableTemplate(templateKey);
if (template == null && !ZenCodingUtil.isXML11ValidQName(templateKey)) {
return null;
}
final TemplateToken templateToken = new TemplateToken(templateKey);
if (!setTemplate(templateToken, template)) {
return null;
}
return new TemplateNode(templateToken);
}