@JRubyMethod(required = 1, optional = 4)
public IRubyObject create_entity(ThreadContext context, IRubyObject[] argv) {
// FIXME: Entity node should be create by some right way.
// this impl passes tests, but entity doesn't exists in DTD, which
// would cause validation failure.
if (argv.length == 0) throw context.getRuntime().newRuntimeError("Could not create entity");
String tagName = (String) argv[0].toJava(String.class);
Node n = this.getOwnerDocument().createElement(tagName);
return XmlEntityDecl.create(context, n, argv);
}
@Nullable
private static Object getLookupItem(@Nullable final XmlEntityDecl decl) {
if (decl == null) {
return null;
}
final String name = decl.getName();
if (name == null) {
return null;
}
final XmlAttributeValue value = decl.getValueElement();
final ASTNode node = value.getNode();
if (node != null) {
final ASTNode[] nodes = node.getChildren(TokenSet.create(XmlTokenType.XML_CHAR_ENTITY_REF));
if (nodes.length == 1) {
final String valueText = nodes[0].getText();
final int i = valueText.indexOf('#');
if (i > 0) {
String s = valueText.substring(i + 1);
if (s.endsWith(";")) {
s = s.substring(0, s.length() - 1);
}
try {
final int unicodeChar = Integer.valueOf(s).intValue();
return LookupValueFactory.createLookupValueWithHint(
name, null, new String(Character.toChars(unicodeChar)));
} catch (NumberFormatException e) {
return null;
}
}
}
}
return null;
}