From 614f97e0729e794b825488f67d3ced917a63f768 Mon Sep 17 00:00:00 2001
From: Sean Lang <slang800@gmail.com>
Date: Mon, 23 Mar 2015 15:46:01 -0400
Subject: [PATCH] fix issue with tables that have missing values

and add test
---
 lib/index.coffee  | 10 +++++++---
 test/index.coffee | 13 +++++++++++++
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/lib/index.coffee b/lib/index.coffee
index 6f1b782..173e1ea 100644
--- a/lib/index.coffee
+++ b/lib/index.coffee
@@ -218,9 +218,13 @@ formatTable = (token) ->
   for i in [0...token.header.length]
     col = [token.header[i]]
     for j in [0...token.cells.length]
-      # https://github.com/chjj/marked/issues/473
-      token.cells[j][i] = token.cells[j][i].trim()
-
+      token.cells[j][i] = (
+        if token.cells[j][i]?
+          # https://github.com/chjj/marked/issues/473
+          token.cells[j][i].trim()
+        else
+          ''
+      )
       col.push token.cells[j][i]
 
     colWidth = longestStringInArray(col)
diff --git a/test/index.coffee b/test/index.coffee
index c37f8af..9a7d7c2 100644
--- a/test/index.coffee
+++ b/test/index.coffee
@@ -255,6 +255,19 @@ describe 'tables', ->
 
     ''')
 
+  it 'should handle tables with missing values', ->
+    tidyMd('''
+      Name |  Type |  Description | Choices
+      -----| ------|  -------------| -------
+      creator_license_id |  unknown | License which...
+
+    ''').should.equal('''
+      Name               | Type    | Description      | Choices
+      ------------------ | ------- | ---------------- | -------
+      creator_license_id | unknown | License which... |
+
+    ''')
+
   it 'should support single column tables & not make trailing whitespace', ->
     tidyMd('''
       | Group