1 files changed, 79 insertions, 0 deletions
diff --git a/src/main/java/io/devnulllabs/openjava/syntax/IdentifierRule.java b/src/main/java/io/devnulllabs/openjava/syntax/IdentifierRule.java
new file mode 100644
index 0000000..facd82a
--- /dev/null
+++ b/src/main/java/io/devnulllabs/openjava/syntax/IdentifierRule.java
@@ -0,0 +1,79 @@
+/*
+ * IdentifierRule.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.ParseTree;
+import io.devnulllabs.openjava.ptree.Variable;
+import io.devnulllabs.openjava.tools.parser.Token;
+
+
+/**
+ * The class <code>IdentifierRule</code> represents syntax rule of
+ * Identifier.
+ * returns as <code>Variable</code>.
+ * <p>
+ * return
+ * <pre>
+ * </pre>
+ * <p>
+ *
+ * @author   Michiaki Tatsubori
+ * @version  1.0
+ * @since    $Id: IdentifierRule.java,v 1.2 2003/02/19 02:54:32 tatsubori Exp $
+ * @see java.lang.Object
+ */
+public class IdentifierRule extends AbstractSyntaxRule
+{
+
+    private String specifying;
+
+    /**
+     * For specified identifier.
+     *
+     * @param  specifying  a string value specifying the identifier
+     *                     to consume.
+     */
+    public IdentifierRule( String specifying ) {
+    this.specifying = specifying;
+    }
+
+    /**
+     * For any identifier.
+     *
+     */
+    public IdentifierRule() {
+    this( null );
+    }
+
+    public final ParseTree consume( TokenSource token_src )
+    throws SyntaxException
+    {
+    return consumeIdentifier( token_src );
+    }
+
+    public Variable consumeIdentifier( TokenSource token_src )
+    throws SyntaxException
+    {
+    Token t = token_src.getNextToken();
+    if (t.kind != IDENTIFIER) {
+        /***** to become specified error report */
+        throw new SyntaxException( "needs Identifier" );
+    }
+    if (specifying != null && ! specifying.equals( t.image )) {
+        /***** to become specified error report */
+        throw new SyntaxException( "needs " + specifying );
+    }
+    return new Variable( t.image );
+    }
+
+}