From: Jim Pryor <profjim@jimpryor.net>
Date: Thu, 23 Sep 2010 07:32:29 +0000 (-0400)
Subject: tweak lambda evaluator
X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=commitdiff_plain;h=5271bbdcd9179cc9ace42a81600420d309214396

tweak lambda evaluator

Signed-off-by: Jim Pryor <profjim@jimpryor.net>
---

diff --git a/lambda_evaluator.mdwn b/lambda_evaluator.mdwn
index 5b49732e..230045b9 100644
--- a/lambda_evaluator.mdwn
+++ b/lambda_evaluator.mdwn
@@ -78,12 +78,13 @@ Object.prototype.error = function (message, t) {
     var parse = make_parse();
 
     function go(source) {
-        var string, tree;
+        var string, tree, expr;
         try {
             tree = parse(source);
  //           string = JSON.stringify(tree, ['key', 'name', 'message', 'value', 'arity', 'first', 'second', 'third', 'fourth'], 4);
  //           string = JSON.stringify(tree.handler(), ['key', 'name', 'message', 'value', 'arity', 'first', 'second', 'tag', 'variable', 'left', 'right', 'bound', 'body' ], 4);
-			string = reduce(tree.handler(), false, false).to_string();
+			expr = tree.handler();
+			string = expr.to_string() + "\n\n~~>\n\n" + reduce(expr, false, false).to_string();
         } catch (e) {
             string = JSON.stringify(e, ['name', 'message', 'from', 'to', 'key',
                     'value', 'arity', 'first', 'second', 'third', 'fourth'], 4);