Rename package to new domainHEADtrunk

Rename the package to the new domain

1 files changed, 78 insertions, 0 deletions

diff --git a/JPratt/src/main/java/com/ashardalon/pratt/commands/impls/TernaryCommand.java b/JPratt/src/main/java/com/ashardalon/pratt/commands/impls/TernaryCommand.java
new file mode 100644
index 0000000..b52107f
--- /dev/null
+++ b/JPratt/src/main/java/com/ashardalon/pratt/commands/impls/TernaryCommand.java
@@ -0,0 +1,78 @@
+package com.ashardalon.pratt.commands.impls;
+
+import bjc.data.Tree;
+
+import com.ashardalon.pratt.ParserContext;
+import com.ashardalon.pratt.blocks.ParseBlock;
+import com.ashardalon.pratt.commands.BinaryPostCommand;
+import com.ashardalon.pratt.commands.CommandResult;
+import com.ashardalon.pratt.commands.CommandResult.Status;
+import com.ashardalon.pratt.tokens.Token;
+
+import bjc.data.SimpleTree;
+import bjc.utils.parserutils.ParserException;
+
+/**
+ * A ternary command, like C's ?:
+ *
+ * @author bjculkin
+ *
+ * @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 TernaryCommand<K, V, C> extends BinaryPostCommand<K, V, C> {
+	private final ParseBlock<K, V, C> innerBlck;
+
+	private final Token<K, V> mark;
+
+	private final boolean nonassoc;
+
+	/**
+	 * Create a new ternary command.
+	 *
+	 * @param precedence The precedence of this operator.
+	 *
+	 * @param innerBlock The representation of the inner block of the expression.
+	 *
+	 * @param marker     The token to use as the root of the AST node.
+	 *
+	 * @param isNonassoc Whether or not the conditional is associative.
+	 */
+	public TernaryCommand(final int precedence, final ParseBlock<K, V, C> innerBlock, final Token<K, V> marker,
+			final boolean isNonassoc) {
+		super(precedence);
+
+		if (innerBlock == null)
+			throw new NullPointerException("Inner block must not be null");
+		else if (marker == null)
+			throw new NullPointerException("Marker must not be null");
+
+		innerBlck = innerBlock;
+		mark = marker;
+		nonassoc = isNonassoc;
+	}
+
+	@Override
+	public CommandResult<K, V> denote(final Tree<Token<K, V>> operand, final Token<K, V> operator,
+			final ParserContext<K, V, C> ctx) throws ParserException {
+		final CommandResult<K, V> innerRes = innerBlck.parse(ctx);
+		if (innerRes.status != Status.SUCCESS) return innerRes;
+		Tree<Token<K, V>> inner = innerRes.success();
+		
+		final CommandResult<K,V> outerRes = ctx.parse.parseExpression(1 + leftBinding(), ctx.tokens, ctx.state, false);
+		if (outerRes.status != Status.SUCCESS) return outerRes;
+		Tree<Token<K, V>> outer = outerRes.success();
+		return CommandResult.success(new SimpleTree<>(mark, inner, operand, outer));
+	}
+
+	@Override
+	public int nextBinding() {
+		if (nonassoc)
+			return leftBinding() - 1;
+
+		return leftBinding();
+	}
+}
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