From 690d65ec513bd5371c3b7b981a4178d3ed1bac97 Mon Sep 17 00:00:00 2001
From: Andreas Lind Petersen <andreas@one.com>
Date: Tue, 26 Mar 2013 00:18:46 +0100
Subject: [PATCH] OutputStream: Added support for quote_char option.

Can be either ', ", or null (null means choose the one with fewest occurrences in the string, like the previous behavior).

Use case: Serializing data-bind attributes (Knockout.js) into doublequote delimited attributes while avoiding an excessive number of &quot; entities.
---
 lib/output.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/output.js b/lib/output.js
index 42b3aad9..8d3f93be 100644
--- a/lib/output.js
+++ b/lib/output.js
@@ -60,7 +60,8 @@ function OutputStream(options) {
         bracketize    : false,
         semicolons    : true,
         comments      : false,
-        preserve_line : false
+        preserve_line : false,
+        quote_char    : null
     }, true);
 
     var indentation = 0;
@@ -95,7 +96,8 @@ function OutputStream(options) {
             return s;
         });
         if (options.ascii_only) str = to_ascii(str);
-        if (dq > sq) return "'" + str.replace(/\x27/g, "\\'") + "'";
+        var quote_char = options.quote_char || (dq > sq ? "'" : '"');
+        if (quote_char === "'") return "'" + str.replace(/\x27/g, "\\'") + "'";
         else return '"' + str.replace(/\x22/g, '\\"') + '"';
     };