1 files changed, 61 insertions, 0 deletions
diff --git a/src/main/java/io/devnulllabs/openjava/syntax/TokenRule.java b/src/main/java/io/devnulllabs/openjava/syntax/TokenRule.java
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index 0000000..a55d3dc
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+++ b/src/main/java/io/devnulllabs/openjava/syntax/TokenRule.java
@@ -0,0 +1,61 @@
+/*
+ * TokenRule.java
+ *
+ * comments here.
+ *
+ * @author   Michiaki Tatsubori
+ * @version  %VERSION% %DATE%
+ * @see      java.lang.Object
+ *
+ * COPYRIGHT 1998 by Michiaki Tatsubori, ALL RIGHTS RESERVED.
+ */
+package io.devnulllabs.openjava.syntax;
+
+import io.devnulllabs.openjava.ptree.Leaf;
+import io.devnulllabs.openjava.ptree.ParseTree;
+import io.devnulllabs.openjava.tools.parser.Token;
+
+/**
+ * The class <code>TokenRule</code> represents the syntax
+ * rule of a list separated by an separator.
+ * <p>
+ * Suppose there's a syntax rule A and token t.  This class can
+ * represents the syntax A ( t A )*.
+ * <p>
+ *
+ * @author   Michiaki Tatsubori
+ * @version  1.0
+ * @since    $Id: TokenRule.java,v 1.2 2003/02/19 02:54:31 tatsubori Exp $
+ * @see java.lang.Object
+ */
+public final class TokenRule extends AbstractSyntaxRule {
+    private int tokenID;
+
+    /**
+     * Allocates a new rule representing a specified token.
+     *
+     * @param separator_token  the id of a token.
+     * @see io.devnulllabs.openjava.syntax.TokenID
+     */
+    public TokenRule(int token_id) {
+        this.tokenID = token_id;
+    }
+
+    /**
+     * Consumes token source.
+     *
+     * @param token_src  token source.
+     * @return  null if this fails to consume a syntax tree represented
+     * by this object.  Otherwise it returns <code>ObjectList</code> object.
+     */
+    public final ParseTree consume(TokenSource token_src)
+        throws SyntaxException {
+        Token t = token_src.getNextToken();
+        if (t.kind != tokenID) {
+            /***** to become specifed error report */
+            throw new SyntaxException("un expected token");
+        }
+        return new Leaf(t.kind, t.image, t.beginLine, t.beginColumn);
+    }
+
+}