Permit 1 column tables with less delimiters

Parsedown.php

@@ -835,8 +835,19 @@ class Parsedown
             return;
         }
 
-        if (strpos($Block['element']['text'], '|') !== false and chop($Line['text'], ' -:|') === '')
+        if (
+            strpos($Block['element']['text'], '|') === false
+            and strpos($Line['text'], '|') === false
+            and strpos($Line['text'], ':') === false
+        ) {
+            return;
+        }
+
+        if (chop($Line['text'], ' -:|') !== '')
         {
+            return;
+        }
+
         $alignments = array();
 
         $divider = $Line['text'];
@@ -852,7 +863,7 @@ class Parsedown
 
             if ($dividerCell === '')
             {
-                    continue;
+                return;
             }
 
             $alignment = null;
@@ -881,6 +892,11 @@ class Parsedown
 
         $headerCells = explode('|', $header);
 
+        if (count($headerCells) !== count($alignments))
+        {
+            return;
+        }
+
         foreach ($headerCells as $index => $headerCell)
         {
             $headerCell = trim($headerCell);
@@ -933,7 +949,6 @@ class Parsedown
 
         return $Block;
     }
-    }
 
     protected function blockTableContinue($Line, array $Block)
     {
@@ -942,7 +957,7 @@ class Parsedown
             return;
         }
 
-        if ($Line['text'][0] === '|' or strpos($Line['text'], '|'))
+        if (count($Block['alignments']) === 1 or $Line['text'][0] === '|' or strpos($Line['text'], '|'))
         {
             $Elements = array();
 
@@ -953,7 +968,9 @@ class Parsedown
 
             preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]+`|`)+/', $row, $matches);
 
-            foreach ($matches[0] as $index => $cell)
+            $cells = array_slice($matches[0], 0, count($Block['alignments']));
+
+            foreach ($cells as $index => $cell)
             {
                 $cell = trim($cell);
 

test/data/simple_table.html

@@ -35,3 +35,35 @@
 </tr>
 </tbody>
 </table>
+<hr />
+<table>
+<thead>
+<tr>
+<th style="text-align: left;">header 1</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td style="text-align: left;">cell 1.1</td>
+</tr>
+<tr>
+<td style="text-align: left;">cell 2.1</td>
+</tr>
+</tbody>
+</table>
+<hr />
+<table>
+<thead>
+<tr>
+<th>header 1</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>cell 1.1</td>
+</tr>
+<tr>
+<td>cell 2.1</td>
+</tr>
+</tbody>
+</table>

test/data/simple_table.md

@@ -9,3 +9,17 @@ header 1 | header 2
 :------- | --------
 cell 1.1 | cell 1.2
 cell 2.1 | cell 2.2
+
+---
+
+header 1
+:-------
+cell 1.1
+cell 2.1
+
+---
+
+header 1
+-------|
+cell 1.1
+cell 2.1