From: Jim Pryor <profjim@jimpryor.net>
Date: Thu, 23 Sep 2010 08:19:58 +0000 (-0400)
Subject: tweak lambda evaluator
X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=commitdiff_plain;h=0a787c1b90bcdd2eb935541c67640ddf6715fddb;hp=d3ad170e4366d7e6e33b27e83d9bcc244fe43988

tweak lambda evaluator

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

diff --git a/code/parse.js b/code/parse.js
index 7749c695..fc3b83d8 100644
--- a/code/parse.js
+++ b/code/parse.js
@@ -213,7 +213,11 @@ var make_parse = function () {
                     n = token;
                     advance();
                 }
-                if (token.id === ".") {
+				if (token.arity === "literal" && t.first.length === 0) {
+					t.first.push(n);
+					t.second = token;
+					advance();
+				} else if (token.id === ".") {
                     t.first.push(n);
                     advance();
                     t.second = expression(in_let);
@@ -249,8 +253,8 @@ var make_parse = function () {
                     n = token;
                     advance(")");
                 } else {
-                    if (token.arity !== "name") {
-                        token.error("Expected a variable name.");
+                    if (token.arity !== "name" && token.arity !== "literal") {
+                        token.error("Expected a variable name or literal.");
                     }
                     token.first = n;
                     n = token;