Update Pratt Parser

1 files changed, 23 insertions, 0 deletions

diff --git a/BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/UnaryCommand.java b/BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/UnaryCommand.java
new file mode 100644
index 0000000..9a79d21
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/UnaryCommand.java
@@ -0,0 +1,23 @@
+package bjc.utils.parserutils.pratt.commands;
+
+import bjc.utils.data.ITree;
+import bjc.utils.data.Tree;
+import bjc.utils.parserutils.ParserException;
+import bjc.utils.parserutils.pratt.ParserContext;
+import bjc.utils.parserutils.pratt.Token;
+
+public class UnaryCommand<K, V, C> extends AbstractInitialCommand<K, V, C> {
+	private final int nullPwer;
+
+	public UnaryCommand(int nullPower) {
+		nullPwer = nullPower;
+	}
+
+	@Override
+	protected ITree<Token<K, V>> intNullDenotation(Token<K, V> operator, ParserContext<K, V, C> ctx)
+			throws ParserException {
+		ITree<Token<K, V>> opr = ctx.parse.parseExpression(nullPwer, ctx.tokens, ctx.state, false);
+
+		return new Tree<>(operator, opr);
+	}
+}
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