From: Jim Pryor <profjim@jimpryor.net>
Date: Thu, 23 Sep 2010 07:12:01 +0000 (-0400)
Subject: tweak lambda evaluator
X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=commitdiff_plain;h=d579bd1bc6e7154796e44bcabde66bcbf5ecb45b;ds=sidebyside

tweak lambda evaluator

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

diff --git a/code/parse.js b/code/parse.js
index dfa06400..ce865a0e 100644
--- a/code/parse.js
+++ b/code/parse.js
@@ -193,14 +193,8 @@ var make_parse = function () {
                     return n;
                 }
             }
-            if (token.arity !== "name") {
-                token.error("Expected a variable name.");
-            }
-            token.first = n;
-            n = token;
-            advance();
             while (true) {
-                if (in_let && token.id === "in" || token.id === "(end)" || token.id === ")") {
+				if (n && (in_let && token.id === "in" || token.id === "(end)" || token.id === ")")) {
                     return n;
                 } else if (token.id === "(") {
                     advance();