Reorganized the project as multi-maven module

Updated README
Added language module with grammar
Split the code into common and chapter01 modules.
Removed a number of utility classes that were imported from AA.
Added github workflow file.

1 files changed, 68 insertions, 0 deletions

diff --git a/chapter01/src/test/java/com/seaofnodes/simple/lexer/TestParser.java b/chapter01/src/test/java/com/seaofnodes/simple/lexer/TestParser.java
new file mode 100644
index 00000000..a89c1f6a
--- /dev/null
+++ b/chapter01/src/test/java/com/seaofnodes/simple/lexer/TestParser.java
@@ -0,0 +1,68 @@
+/**
+ * DO NOT REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Contributor(s):
+ *
+ * This file is part of the Sea Of Nodes Simple Programming language
+ * implementation. See https://github.com/SeaOfNodes/Simple
+ *
+ * The contents of this file are subject to the terms of the
+ * Apache License Version 2 (the "APL"). You may not use this
+ * file except in compliance with the License. A copy of the
+ * APL may be obtained from:
+ * http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+package com.seaofnodes.simple.lexer;
+
+import com.seaofnodes.simple.common.ErrorListener;
+import com.seaofnodes.simple.lexer.ecstasy.Lexer;
+import com.seaofnodes.simple.lexer.ecstasy.Source;
+import com.seaofnodes.simple.parser.Ast;
+import com.seaofnodes.simple.parser.Parser;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestParser {
+
+    @Test
+    public void testParseSingleDecl()
+    {
+        final String source = "var i: Int;";
+        Lexer lexer = new Lexer(new Source(source), new ErrorListener());
+        Parser parser = new Parser(lexer);
+        var ast = parser.parse();
+        Assert.assertTrue(ast instanceof Ast.Block
+            && ((Ast.Block) ast).stmtList.size() == 1);
+    }
+
+    @Test
+    public void testParseTwoDecls() {
+        final String source = "var i: Int;\nvar j: Int;";
+        Lexer lexer = new Lexer(new Source(source), new ErrorListener());
+        Parser parser = new Parser(lexer);
+        var ast = parser.parse();
+        Assert.assertTrue(ast instanceof Ast.Block
+                && ((Ast.Block) ast).stmtList.size() == 2);
+    }
+
+    @Test
+    public void testIfAndWhile() {
+        final String source =
+                """
+                var i: Int;
+                var j: Int;
+                
+                i = 0;
+                j = 100;
+                while ( 1 ) {
+                    i = i + 1;
+                    j = j - 1;
+                    if ( i >= j ) break;
+                }
+                """;
+        Lexer lexer = new Lexer(new Source(source), new ErrorListener());
+        Parser parser = new Parser(lexer);
+        var ast = parser.parse();
+    }
+}