Added header support for wiki tables

.gitignore

@@ -12,3 +12,4 @@ sandbox/*.html
 __pycache__
 .tox
 *.egg-info
+*.idea

lib/markdown2.py

@@ -217,6 +217,7 @@ def __init__(self, html4tags=False, tab_width=4, safe_mode=None,
         else:
             self.empty_element_suffix = " />"
         self.tab_width = tab_width
+        self.tab = tab_width * " "
 
         # For compatibility with earlier markdown2.py and with
         # markdown.py's safe_mode being a boolean,
@@ -1070,23 +1071,43 @@ def _do_tables(self, text):
 
     def _wiki_table_sub(self, match):
         ttext = match.group(0).strip()
-        # print 'wiki table: %r' % match.group(0)
+        # print('wiki table: %r' % match.group(0))
         rows = []
         for line in ttext.splitlines(0):
             line = line.strip()[2:-2].strip()
             row = [c.strip() for c in re.split(r'(?<!\\)\|\|', line)]
             rows.append(row)
+        # from pprint import pprint
         # pprint(rows)
-        hlines = ['<table%s>' % self._html_class_str_from_tag('table'), '<tbody>']
-        for row in rows:
-            hrow = ['<tr>']
-            for cell in row:
-                hrow.append('<td>')
-                hrow.append(self._run_span_gamut(cell))
-                hrow.append('</td>')
-            hrow.append('</tr>')
-            hlines.append(''.join(hrow))
-        hlines += ['</tbody>', '</table>']
+        hlines = []
+
+        def add_hline(line, indents=0):
+            hlines.append((self.tab * indents) + line)
+
+        def format_cell(text):
+            return self._run_span_gamut(re.sub(r"^\s*~", "", cell).strip(" "))
+
+        add_hline('<table%s>' % self._html_class_str_from_tag('table'))
+        # Check if first cell of first row is a header cell. If so, assume the whole row is a header row.
+        if rows and rows[0] and re.match(r"^\s*~", rows[0][0]):
+            add_hline('<thead>', 1)
+            add_hline('<tr>', 2)
+            for cell in rows[0]:
+                add_hline("<th>{}</th>".format(format_cell(cell)), 3)
+            add_hline('</tr>', 2)
+            add_hline('</thead>', 1)
+            # Only one header row allowed.
+            rows = rows[1:]
+        # If no more rows, don't create a tbody.
+        if rows:
+            add_hline('<tbody>', 1)
+            for row in rows:
+                add_hline('<tr>', 2)
+                for cell in row:
+                    add_hline('<td>{}</td>'.format(format_cell(cell)), 3)
+                add_hline('</tr>', 2)
+            add_hline('</tbody>', 1)
+        add_hline('</table>')
         return '\n'.join(hlines) + '\n'
 
     def _do_wiki_tables(self, text):

test/php-markdown-extra-cases/Tables.html

@@ -307,4 +307,4 @@ <h1>Missing tailing pipe</h1>
   <td>Cell</td>
 </tr>
 </tbody>
-</table>
+</table>

test/php-markdown-extra-cases/Tables.opts

@@ -0,0 +1 @@
+{"extras": ["tables"]}

test/php-markdown-extra-cases/Tables.text

@@ -73,10 +73,10 @@ Table alignement (alternate spacing):
 | A         | B         |
 | C         |           |
 
-Header 1  | Header 2
---------- | ---------
-A         | B
-          | D
+| Header 1  | Header 2
+| --------- | ---------
+| A         | B
+|           | D
 
 * * *
 
@@ -101,4 +101,3 @@ Header 1  | Header 2  |
 --------- | --------- |
 Cell      | Cell      |
 Cell      | Cell      
-

test/tm-cases/html_classes.html

@@ -18,12 +18,30 @@
 </table>
 
 <table class="table table-striped">
-<tbody>
-<tr><td><em>Year</em></td><td><em>Temperature (low)</em></td><td><em>Temperature (high)</em></td></tr>
-<tr><td>1900</td><td>-10</td><td>25</td></tr>
-<tr><td>1910</td><td>-15</td><td>30</td></tr>
-<tr><td>1920</td><td>-10</td><td>32</td></tr>
-</tbody>
+    <thead>
+        <tr>
+            <th>Year</th>
+            <th>Temperature (low)</th>
+            <th>Temperature (high)</th>
+        </tr>
+    </thead>
+    <tbody>
+        <tr>
+            <td>1900</td>
+            <td>-10</td>
+            <td>25</td>
+        </tr>
+        <tr>
+            <td>1910</td>
+            <td>-15</td>
+            <td>30</td>
+        </tr>
+        <tr>
+            <td>1920</td>
+            <td>-10</td>
+            <td>32</td>
+        </tr>
+    </tbody>
 </table>
 
 <p class="col-xs-3 custom-paragraph-class">For example:</p>

test/tm-cases/html_classes.text

@@ -3,7 +3,7 @@
 | `Cell 1` | [Cell 2](http://example.com) link |
 | Cell 3 | **Cell 4** |
 
-|| *Year* || *Temperature (low)* || *Temperature (high)* ||
+||~ Year ||~ Temperature (low) ||~ Temperature (high) ||
 || 1900 || -10 || 25 ||
 || 1910 || -15 || 30 ||
 || 1920 || -10 || 32 ||

test/tm-cases/wiki_tables.html

@@ -1,28 +1,123 @@
 <table>
-<tbody>
-<tr><td><em>Year</em></td><td><em>Temperature (low)</em></td><td><em>Temperature (high)</em></td></tr>
-<tr><td>1900</td><td>-10</td><td>25</td></tr>
-<tr><td>1910</td><td>-15</td><td>30</td></tr>
-<tr><td>1920</td><td>-10</td><td>32</td></tr>
-</tbody>
+    <tbody>
+        <tr>
+            <td><em>Year</em></td>
+            <td><em>Temperature (low)</em></td>
+            <td><em>Temperature (high)</em></td>
+        </tr>
+        <tr>
+            <td>1900</td>
+            <td>-10</td>
+            <td>25</td>
+        </tr>
+        <tr>
+            <td>1910</td>
+            <td>-15</td>
+            <td>30</td>
+        </tr>
+        <tr>
+            <td>1920</td>
+            <td>-10</td>
+            <td>32</td>
+        </tr>
+    </tbody>
+</table>
+
+<h1>With header row</h1>
+
+<table>
+    <thead>
+        <tr>
+            <th>Name</th>
+            <th>Class</th>
+            <th>Race</th>
+            <th>Level</th>
+        </tr>
+    </thead>
+    <tbody>
+        <tr>
+            <td>Vlad</td>
+            <td>Barbarian</td>
+            <td>Dragonborn</td>
+            <td>12</td>
+        </tr>
+        <tr>
+            <td>Jimbo</td>
+            <td>Rogue</td>
+            <td>Halfling</td>
+            <td>13</td>
+        </tr>
+    </tbody>
+</table>
+
+<h1>With only header row</h1>
+
+<table>
+    <thead>
+        <tr>
+            <th>Name</th>
+            <th>Class</th>
+            <th>Race</th>
+            <th>Level</th>
+        </tr>
+    </thead>
+</table>
+
+<h1>With header row, alternate spacing</h1>
+
+<table>
+    <thead>
+        <tr>
+            <th>Name</th>
+            <th>Class</th>
+            <th>Race</th>
+            <th>Level</th>
+        </tr>
+    </thead>
+    <tbody>
+        <tr>
+            <td>Vlad</td>
+            <td>Barbarian</td>
+            <td>Dragonborn</td>
+            <td>12</td>
+        </tr>
+        <tr>
+            <td>Jimbo</td>
+            <td>Rogue</td>
+            <td>Halfling</td>
+            <td>13</td>
+        </tr>
+    </tbody>
 </table>
 
 <h1>just one line</h1>
 
 <table>
-<tbody>
-<tr><td>foo</td><td>bar</td><td>baz</td></tr>
-</tbody>
+    <tbody>
+        <tr>
+            <td>foo</td>
+            <td>bar</td>
+            <td>baz</td>
+        </tr>
+    </tbody>
 </table>
 
 <h1>blockquote</h1>
 
 <blockquote>
   <table>
-  <tbody>
-  <tr><td>grinch</td><td>stole</td><td>xmas</td></tr>
-  <tr><td>green</td><td><strong>eggs</strong></td><td>ham</td></tr>
-  </tbody>
+      <tbody>
+          <tr>
+              <td>grinch</td>
+              <td>stole</td>
+              <td>xmas</td>
+          </tr>
+          <tr>
+              <td>green</td>
+              <td><strong>eggs</strong></td>
+              <td>ham</td>
+          </tr>
+      </tbody>
   </table>
 
   <p>-- Dr. Seuss</p>
@@ -31,7 +126,10 @@ <h1>blockquote</h1>
 <h1>end of file</h1>
 
 <table>
-<tbody>
-<tr><td>ResourceNotFound</td><td>If :login does not exist</td></tr>
-</tbody>
+    <tbody>
+        <tr>
+            <td>ResourceNotFound</td>
+            <td>If :login does not exist</td>
+        </tr>
+    </tbody>
 </table>

test/tm-cases/wiki_tables.tags

@@ -1 +1 @@
-extra wiki-tables issue66
+extra wiki-tables

test/tm-cases/wiki_tables.text

@@ -3,6 +3,21 @@
 || 1910 || -15 || 30 ||
 || 1920 || -10 || 32 ||
 
+# With header row
+
+||~ Name ||~ Class ||~ Race ||~ Level ||
+|| Vlad || Barbarian || Dragonborn || 12 ||
+|| Jimbo || Rogue || Halfling || 13 ||
+
+# With only header row
+
+||~ Name ||~ Class ||~ Race ||~ Level ||
+
+# With header row, alternate spacing
+
+|| ~Name || ~Class || ~Race || ~Level ||
+|| Vlad || Barbarian || Dragonborn || 12 ||
+|| Jimbo || Rogue || Halfling || 13 ||
 
 # just one line