+
+ private static QName qnameFromArgument(final StmtContext<String, UnrecognizedStatement, ?> stmt) {
+ final String value = stmt.getStatementArgument();
+ if (value == null || value.isEmpty()) {
+ return stmt.getPublicDefinition().getStatementName();
+ }
+
+ final int colon = value.indexOf(':');
+ if (colon == -1) {
+ if (AbstractQName.isValidLocalName(value)) {
+ return QName.unsafeOf(StmtContextUtils.getRootModuleQName(stmt), value).intern();
+ }
+ return null;
+ }
+
+ final QNameModule qnameModule = StmtContextUtils.getModuleQNameByPrefix(stmt, value.substring(0, colon));
+ if (qnameModule == null) {
+ return null;
+ }
+
+ final int next = value.indexOf(':', colon + 1);
+ final String localName = next == -1 ? value.substring(colon + 1) : value.substring(colon + 1, next);
+ return QName.create(qnameModule, localName).intern();
+ }