Update Pratt Parser

1 files changed, 34 insertions, 0 deletions

diff --git a/BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/DefaultNonInitialCommand.java b/BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/DefaultNonInitialCommand.java
new file mode 100644
index 0000000..8c500a9
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/DefaultNonInitialCommand.java
@@ -0,0 +1,34 @@
+package bjc.utils.parserutils.pratt.commands;
+
+import bjc.utils.data.ITree;
+import bjc.utils.parserutils.pratt.NonInitialCommand;
+import bjc.utils.parserutils.pratt.ParserContext;
+import bjc.utils.parserutils.pratt.Token;
+
+/**
+ * Default implementation of a non-initial command.
+ * 
+ * @author EVE
+ *
+ * @param <K>
+ *                The key type of the tokens.
+ * 
+ * @param <V>
+ *                The value type of the tokens.
+ * 
+ * @param <C>
+ *                The state type of the parser.
+ */
+public class DefaultNonInitialCommand<K, V, C> extends NonInitialCommand<K, V, C> {
+
+	@Override
+	public ITree<Token<K, V>> denote(ITree<Token<K, V>> operand, Token<K, V> operator, ParserContext<K, V, C> ctx) {
+		throw new UnsupportedOperationException("Default command has no left denotation");
+	}
+
+	@Override
+	public int leftBinding() {
+		return -1;
+	}
+
+}