initial commit

Upsilon/Utilities/NodeStringFormatter.cs

@@ -0,0 +1,27 @@
+using System.Text;
+using Upsilon.Parser;
+
+namespace Upsilon.Utilities
+{
+    public static class NodeStringFormatter
+    {
+        public static string Print(this SyntaxNode token, int depth = 0)
+        {
+            var sb = new StringBuilder();
+            var tabs = depth - 1;
+            for (var i = 0; i < tabs; i++)
+                sb.Append("\t");
+            if (depth > 0)
+            {
+                sb.Append("|-- ");
+            }
+            sb.Append(token.Kind);
+            foreach (var syntaxNode in token.ChildNodes())
+            {
+                sb.Append("\n");
+                sb.Append(syntaxNode.Print(depth + 1));
+            }
+            return sb.ToString();
+        }
+    }
+}