Update Pratt Parser

1 files changed, 28 insertions, 0 deletions

diff --git a/BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/DefaultInitialCommand.java b/BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/DefaultInitialCommand.java
new file mode 100644
index 0000000..7409755
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/DefaultInitialCommand.java
@@ -0,0 +1,28 @@
+package bjc.utils.parserutils.pratt.commands;
+
+import bjc.utils.data.ITree;
+import bjc.utils.parserutils.ParserException;
+import bjc.utils.parserutils.pratt.InitialCommand;
+import bjc.utils.parserutils.pratt.ParserContext;
+import bjc.utils.parserutils.pratt.Token;
+
+/**
+ * Default implementation of an initial command.
+ * 
+ * @author EVE
+ *
+ * @param <K>
+ *                The key type of the token.
+ * 
+ * @param <V>
+ *                The value type of the token.
+ * 
+ * @param <C>
+ *                The state type of the parser.
+ */
+public class DefaultInitialCommand<K, V, C> implements InitialCommand<K, V, C> {
+	@Override
+	public ITree<Token<K, V>> denote(Token<K, V> operator, ParserContext<K, V, C> ctx) throws ParserException {
+		throw new ParserException("Unexpected token " + operator);
+	}
+}