From 96689e4f374e5bc69a95f9cb352b97697e0006c7 Mon Sep 17 00:00:00 2001
From: Alexis Sellier <alexis@cloudhead.io>
Date: Fri, 16 Dec 2011 19:06:24 +0100
Subject: [PATCH] fix error output on unexpected errors

---
 lib/less/index.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/lib/less/index.js b/lib/less/index.js
index 4b5d46d7..cac29679 100644
--- a/lib/less/index.js
+++ b/lib/less/index.js
@@ -43,6 +43,8 @@ var less = {
 
         if (options.silent) { return }
 
+        if (ctx.stack) { return sys.error(stylize(ctx.stack, 'red')) }
+
         if (!ctx.hasOwnProperty('index')) {
             return sys.error(ctx.stack || ctx.message);
         }
@@ -51,9 +53,11 @@ var less = {
             error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey'));
         }
 
-        error.push(ctx.line + ' ' + extract[1].slice(0, ctx.column)
-                            + stylize(stylize(extract[1][ctx.column], 'bold')
-                            + extract[1].slice(ctx.column + 1), 'yellow'));
+        if (extract[1]) {
+            error.push(ctx.line + ' ' + extract[1].slice(0, ctx.column)
+                                + stylize(stylize(extract[1][ctx.column], 'bold')
+                                + extract[1].slice(ctx.column + 1), 'yellow'));
+        }
 
         if (typeof(extract[2]) === 'string') {
             error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey'));
@@ -70,7 +74,6 @@ var less = {
             sys.error(stylize('from ', 'red')       + (ctx.filename || ''));
             sys.error(stylize(ctx.callLine, 'grey') + ' ' + ctx.callExtract);
         }
-        if (ctx.stack) { sys.error(stylize(ctx.stack, 'red')) }
     }
 };