From e77328fb23151191ce356f87163ddba96d173dd6 Mon Sep 17 00:00:00 2001
From: Laurent Cozic <laurent@cozic.net>
Date: Thu, 17 May 2018 01:01:36 +0100
Subject: [PATCH 1/2] Handle tables with no headers by creating an empty
 Markdown header

---
 src/tables.js   | 16 ++++++++++++----
 test/index.html | 14 ++++++++++----
 2 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/src/tables.js b/src/tables.js
index e4fd987..2cb862b 100644
--- a/src/tables.js
+++ b/src/tables.js
@@ -35,13 +35,21 @@ rules.table = {
   // Only convert tables with a heading row.
   // Tables with no heading row are kept using `keep` (see below).
   filter: function (node) {
-    return node.nodeName === 'TABLE' && isHeadingRow(node.rows[0])
+    return node.nodeName === 'TABLE'
   },
 
-  replacement: function (content) {
+  replacement: function (content, node) {
+    // If table has no heading, add an empty one so as to get a valid Markdown table
+    var firstRow = node.rows.length ? node.rows[0] : null
+    var columnCount = firstRow ? firstRow.childNodes.length : 0
+    var emptyHeader = ''
+    if (columnCount && !isHeadingRow(firstRow)) {
+      emptyHeader = '|' + '     |'.repeat(columnCount) + '\n' + '|' + ' --- |'.repeat(columnCount)
+    }
+    
     // Ensure there are no blank lines
     content = content.replace('\n\n', '\n')
-    return '\n\n' + content + '\n\n'
+    return '\n\n' + emptyHeader + content + '\n\n'
   }
 }
 
@@ -91,7 +99,7 @@ function cell (content, node) {
 
 export default function tables (turndownService) {
   turndownService.keep(function (node) {
-    return node.nodeName === 'TABLE' && !isHeadingRow(node.rows[0])
+    return node.nodeName === 'TABLE'
   })
   for (var key in rules) turndownService.addRule(key, rules[key])
 }
diff --git a/test/index.html b/test/index.html
index f14088f..8e73118 100644
--- a/test/index.html
+++ b/test/index.html
@@ -262,17 +262,20 @@
 | --- |</pre>
 </div>
 
-<div class="case" data-name="non-definitive heading row (not converted)">
+<div class="case" data-name="non-definitive heading row (converted but with empty header)">
   <div class="input">
     <table>
       <tr><td>Row 1 Cell 1</td><td>Row 1 Cell 2</td></tr>
       <tr><td>Row 2 Cell 1</td><td>Row 2 Cell 2</td></tr>
     </table>
   </div>
-  <pre class="expected">&lt;table&gt;&lt;tbody&gt;&lt;tr&gt;&lt;td&gt;Row 1 Cell 1&lt;/td&gt;&lt;td&gt;Row 1 Cell 2&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td&gt;Row 2 Cell 1&lt;/td&gt;&lt;td&gt;Row 2 Cell 2&lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;</pre>
+  <pre class="expected">|     |     |
+| --- | --- |
+| Row 1 Cell 1 | Row 1 Cell 2 |
+| Row 2 Cell 1 | Row 2 Cell 2 |</pre>
 </div>
 
-<div class="case" data-name="non-definitive heading row with th (not converted)">
+<div class="case" data-name="non-definitive heading row with th (converted but with empty header)">
   <div class="input">
     <table>
       <tr>
@@ -285,7 +288,10 @@
       </tr>
     </table>
   </div>
-  <pre class="expected">&lt;table&gt;&lt;tbody&gt;&lt;tr&gt;&lt;th&gt;Heading&lt;/th&gt;&lt;td&gt;Not a heading&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td&gt;Heading&lt;/td&gt;&lt;td&gt;Not a heading&lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;</pre>
+  <pre class="expected">|     |     |
+| --- | --- |
+| Heading | Not a heading |
+| Heading | Not a heading |</pre>
 </div>
 
 <div class="case" data-name="highlighted code block with html">

From 813b9a61b024b14606e57f78f15c02e5125bdd7c Mon Sep 17 00:00:00 2001
From: Laurent Cozic <laurent@cozic.net>
Date: Thu, 17 May 2018 01:29:33 +0100
Subject: [PATCH 2/2] Fix trailing space issue

---
 src/tables.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tables.js b/src/tables.js
index 2cb862b..ce0d483 100644
--- a/src/tables.js
+++ b/src/tables.js
@@ -46,7 +46,7 @@ rules.table = {
     if (columnCount && !isHeadingRow(firstRow)) {
       emptyHeader = '|' + '     |'.repeat(columnCount) + '\n' + '|' + ' --- |'.repeat(columnCount)
     }
-    
+
     // Ensure there are no blank lines
     content = content.replace('\n\n', '\n')
     return '\n\n' + emptyHeader + content + '\n\n'