Replace misaka with mistune

Makefile

@@ -4,15 +4,13 @@ python := "$(shell { command -v python2.7 || command -v python; } 2>/dev/null)"
 # NOTE: Creating a virtualenv on Windows places binaries in the 'Scripts' directory.
 bin_dir := $(shell $(python) -c 'import sys; bin = "Scripts" if sys.platform == "win32" else "bin"; print(bin)')
 env_bin := env/$(bin_dir)
-venv := "./vendor/virtualenv-1.9.1.py"
+venv := "./vendor/virtualenv-12.0.7.py"
 
 env:
 	$(python)  $(venv)\
-				--unzip-setuptools \
 				--prompt="[inside.gratipay.com] " \
 				--never-download \
 				--extra-search-dir=./vendor/ \
-				--distribute \
 				./env/
 	./$(env_bin)/pip --version
 	./$(env_bin)/pip install -f file:///$(PWD)/vendor -r requirements.txt

gfm.py

@@ -1,15 +1,20 @@
 from __future__ import absolute_import, division, print_function, unicode_literals
 
-import misaka
+import mistune
+from mistune_contrib.toc import TocMixin
 from aspen_jinja2_renderer import Renderer as Jinja2Renderer, Factory as Jinja2Factory
 
 
+# setup Markdown rendering, with anchors for headers
+class TocRenderer(TocMixin, mistune.Renderer):
+    pass
+toc = TocRenderer()
+markdown = mistune.Markdown(renderer=toc)
+
+
 def gfm(md):
-    html = misaka.html( md
-                      , misaka.EXT_STRIKETHROUGH | misaka.EXT_AUTOLINK | misaka.EXT_FENCED_CODE | \
-                        misaka.EXT_TABLES
-                      , misaka.HTML_SMARTYPANTS | misaka.HTML_TOC
-                       )
+    toc.reset_toc()
+    html = markdown( md )
     return html
 
 

requirements.txt

@@ -12,7 +12,8 @@ aspen-jinja2==0.3
 
 simplejson==2.3.2
 
-misaka==1.0.2
+mistune==0.7.1
+mistune_contrib==0.1
 
 honcho==0.5.0