Check in a simple pure-python based Markdown previewer.

third_party/Python-Markdown/markdown/extensions/tables.py

-# markdown is released under the BSD license
-# Copyright 2007, 2008 The Python Markdown Project (v. 1.7 and later)
-# Copyright 2004, 2005, 2006 Yuri Takhteyev (v. 0.2-1.6b)
-# Copyright 2004 Manfred Stienstra (the original version)
-# 
-# All rights reserved.
-# 
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are met:
-# 
-# *   Redistributions of source code must retain the above copyright
-#     notice, this list of conditions and the following disclaimer.
-# *   Redistributions in binary form must reproduce the above copyright
-#     notice, this list of conditions and the following disclaimer in the
-#     documentation and/or other materials provided with the distribution.
-# *   Neither the name of the <organization> nor the
-#     names of its contributors may be used to endorse or promote products
-#     derived from this software without specific prior written permission.
-# 
-# THIS SOFTWARE IS PROVIDED BY THE PYTHON MARKDOWN PROJECT ''AS IS'' AND ANY
-# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-# DISCLAIMED. IN NO EVENT SHALL ANY CONTRIBUTORS TO THE PYTHON MARKDOWN PROJECT
-# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-
-
 """
 Tables Extension for Python-Markdown
 ====================================
 
 Added parsing of tables to Python-Markdown.
 
-A simple example:
+See <https://pythonhosted.org/Markdown/extensions/tables.html>
+for documentation.
 
-    First Header  | Second Header
-    ------------- | -------------
-    Content Cell  | Content Cell
-    Content Cell  | Content Cell
+Original code Copyright 2009 [Waylan Limberg](http://achinghead.com)
 
-Copyright 2009 - [Waylan Limberg](http://achinghead.com)
+All changes Copyright 2008-2014 The Python Markdown Project
+
+License: [BSD](http://www.opensource.org/licenses/bsd-license.php)
+
 """
 
 from __future__ import absolute_import
 from __future__ import unicode_literals
 from . import Extension
 from ..blockprocessors import BlockProcessor
 from ..util import etree
 
+
 class TableProcessor(BlockProcessor):
     """ Process Tables. """
 
     def test(self, parent, block):
         rows = block.split('\n')
-        return (len(rows) > 2 and '|' in rows[0] and 
-                '|' in rows[1] and '-' in rows[1] and 
+        return (len(rows) > 1 and '|' in rows[0] and
+                '|' in rows[1] and '-' in rows[1] and
                 rows[1].strip()[0] in ['|', ':', '-'])
 
     def run(self, parent, blocks):
         """ Parse a table block and build table. """
         block = blocks.pop(0).split('\n')
         header = block[0].strip()
         seperator = block[1].strip()
-        rows = block[2:]
+        rows = [] if len(block) < 3 else block[2:]
         # Get format type (bordered by pipes or not)
         border = False
         if header.startswith('|'):
             border = True
         # Get alignment of columns
         align = []
         for c in self._split_row(seperator, border):
             if c.startswith(':') and c.endswith(':'):
                 align.append('center')
             elif c.startswith(':'):
@@ skipping 10 matching lines @@
         for row in rows:
             self._build_row(row.strip(), tbody, align, border)
 
     def _build_row(self, row, parent, align, border):
         """ Given a row of text, build table cells. """
         tr = etree.SubElement(parent, 'tr')
         tag = 'td'
         if parent.tag == 'thead':
             tag = 'th'
         cells = self._split_row(row, border)
-        # We use align here rather than cells to ensure every row 
+        # We use align here rather than cells to ensure every row
         # contains the same number of columns.
         for i, a in enumerate(align):
             c = etree.SubElement(tr, tag)
             try:
                 c.text = cells[i].strip()
-            except IndexError:
+            except IndexError:  # pragma: no cover
                 c.text = ""
             if a:
                 c.set('align', a)
 
     def _split_row(self, row, border):
         """ split a row of text into list of cells. """
         if border:
             if row.startswith('|'):
                 row = row[1:]
             if row.endswith('|'):
                 row = row[:-1]
         return row.split('|')
 
 
 class TableExtension(Extension):
     """ Add tables to Markdown. """
 
     def extendMarkdown(self, md, md_globals):
         """ Add an instance of TableProcessor to BlockParser. """
-        md.parser.blockprocessors.add('table', 
+        md.parser.blockprocessors.add('table',
                                       TableProcessor(md.parser),
                                       '<hashheader')
 
 
-def makeExtension(configs={}):
-    return TableExtension(configs=configs)
+def makeExtension(*args, **kwargs):
+    return TableExtension(*args, **kwargs)