Add ranges

Ranges can now be used with the syntax [start..end] inline to generate
numbers instead of having to create a special rule for them.

1 files changed, 14 insertions, 0 deletions

diff --git a/RGens/src/main/java/bjc/rgens/newparser/Rule.java b/RGens/src/main/java/bjc/rgens/newparser/Rule.java
index a65f1ce..eca856f 100644
--- a/RGens/src/main/java/bjc/rgens/newparser/Rule.java
+++ b/RGens/src/main/java/bjc/rgens/newparser/Rule.java
@@ -3,6 +3,8 @@ package bjc.rgens.newparser;
 import bjc.utils.funcdata.FunctionalList;
 import bjc.utils.funcdata.IList;
 
+import java.util.Random;
+
 /**
  * A rule in a randomized grammar.
  * 
@@ -62,6 +64,18 @@ public class Rule {
 	}
 
 	/**
+	 * Get a random case from this rule.
+	 * 
+	 * @param rnd
+	 *                The random number generator to use.
+	 * 
+	 * @return A random case from this rule.
+	 */
+	public RuleCase getCase(Random rnd) {
+		return ruleCases.randItem(rnd::nextInt);
+	}
+
+	/**
 	 * Get all the cases of this rule.
 	 * 
 	 * @return All the cases in this rule.