[couchdb-escodegen] 01/01: Fix MemberExpression issues

[da...@apache.org]

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davisp pushed a commit to reference refs/pull/154/head
in repository https://gitbox.apache.org/repos/asf/couchdb-escodegen.git

commit addff1a84c8cb0ffb104e3903487c7f821e66966
Author: Dmitry Sorin <ds...@yandex-team.ru>
AuthorDate: Thu Dec 19 22:01:13 2013 +0400

    Fix MemberExpression issues
---
 escodegen.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/escodegen.js b/escodegen.js
index 5be8063..8c24994 100644
--- a/escodegen.js
+++ b/escodegen.js
@@ -216,6 +216,22 @@
         return result;
     }
 
+    function isValidIdentifier(str) {
+        if (!str.length) {
+            return false;
+        }
+
+        if (!/^[_|\$|a-z]/i.test(str)) {
+            return false;
+        }
+
+        if (!/^[_|\$|a-z|0-9]+$/i.test(str.substr(1))) {
+            return false;
+        }
+
+        return true;
+    }
+
     isArray = Array.isArray;
     if (!isArray) {
         isArray = function isArray(array) {
@@ -1038,6 +1054,8 @@
                     allowIn: true,
                     allowCall: allowCall
                 }), ']');
+            } else if (!isValidIdentifier(expr.property.name)) {
+                result.push('[', escapeString(expr.property.name), ']');
             } else {
                 if (expr.object.type === Syntax.Literal && typeof expr.object.value === 'number') {
                     fragment = toSourceNode(result).toString();