1 files changed, 88 insertions, 0 deletions
diff --git a/src/main/java/bjc/rgens/parser/RuleCase.java b/src/main/java/bjc/rgens/parser/RuleCase.java
new file mode 100755
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+++ b/src/main/java/bjc/rgens/parser/RuleCase.java
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+package bjc.rgens.parser;
+
+import bjc.rgens.parser.elements.CaseElement;
+import bjc.utils.funcdata.IList;
+
+/*
+ * @NOTE
+ * 	If at some point we add new case types, they should go into subclasses,
+ * 	not into this class.
+ */
+/**
+ * A case in a rule in a randomized grammar.
+ *
+ * @author EVE
+ */
+public class RuleCase {
+	/**
+	 * The possible types of a case.
+	 *
+	 * @author EVE
+	 */
+	public static enum CaseType {
+		/** A normal case, composed from a list of elements. */
+		NORMAL,
+		/** A case that doesn't insert spaces. */
+		SPACEFLATTEN,
+		/** A case that applies a regex after generation. */
+		REGEX
+	}
+
+	/** The type of this case. */
+	public final CaseType type;
+
+	/**
+	 * The list of element values for this case.
+	 *
+	 * <h2>Used For</h2>
+	 * <dl>
+	 * <dt>NORMAL, SPACEFLATTEN</dt>
+	 * <dd>Used as the list of elementList the rule is composed of.</dd>
+	 * </dl>
+	 */
+	protected IList<CaseElement> elementList;
+
+	protected RuleCase(CaseType typ) {
+		type = typ;
+	}
+
+	/**
+	 * Create a new case of the specified type that takes a element list
+	 * parameter.
+	 *
+	 * @param typ
+	 * 	The type of case to create.
+	 *
+	 * @param elements
+	 * 	The element list parameter of the case.
+	 *
+	 * @throws IllegalArgumentException
+	 * 	If this type doesn't take a element list parameter.
+	 */
+	public RuleCase(CaseType typ, IList<CaseElement> elements) {
+		this(typ);
+
+		switch (typ) {
+		case NORMAL:
+		case SPACEFLATTEN:
+			break;
+		case REGEX:
+			throw new IllegalArgumentException("This type requires an element list and a pattern");
+		default:
+			throw new IllegalArgumentException("This type doesn't have a element list parameter");
+		}
+
+		elementList = elements;
+	}
+
+	/**
+	 * Get the element list value of this type.
+	 *
+	 * @return 
+	 * 	The element list value of this case, or null if this type
+	 * 	doesn't have one.
+	 */
+	public IList<CaseElement> getElements() {
+		return elementList;
+	}
+}