Markdown support added

hyde/ext/templates/jinja.py

@@ -4,7 +4,10 @@ Jinja template utilties
 
 from hyde.fs import File, Folder
 from hyde.template import Template
-from jinja2 import contextfunction, Environment, FileSystemLoader, Undefined
+from jinja2 import contextfunction, Environment, FileSystemLoader, Undefined, nodes
+from jinja2.ext import Extension
+from jinja2.exceptions import TemplateError
+
 
 class SilentUndefined(Undefined):
     def __getattr__(self, name):
@@ -27,6 +30,32 @@ def content_url(context, path):
     site = context['site']
     return Folder(site.config.base_url).child(path)
 
+class Markdown(Extension):
+    tags = set(['markdown'])
+
+    def parse(self, parser):
+        lineno = parser.stream.next().lineno
+        body = parser.parse_statements(['name:endmarkdown'], drop_needle=True)
+
+        return nodes.CallBlock(
+                    self.call_method('_render_markdown', [], [], None, None),
+                    [], [], body
+                ).set_lineno(lineno)
+
+    def _render_markdown(self, caller=None):
+        try:
+            import markdown
+        except ImportError:
+            raise TemplateError("Cannot load the markdown library")
+        if not caller:
+            return ''
+        output = caller().strip()
+        d = {}
+        if hasattr(self.environment.config, 'markdown'):
+            d['extensions'] = getattr(self.environment.config.markdown, 'extensions', [])
+            d['extension_configs'] = getattr(self.environment.config.markdown, 'extension_configs', {})
+        md = markdown.Markdown(**d)
+        return md.convert(output)
 
 # pylint: disable-msg=W0104,E0602,W0613,R0201
 class Jinja2Template(Template):
@@ -48,9 +77,12 @@ class Jinja2Template(Template):
                         ])
         else:
             loader = FileSystemLoader(str(self.sitepath))
-        self.env = Environment(loader=loader, undefined=SilentUndefined)
+        self.env = Environment(loader=loader,
+                                undefined=SilentUndefined,
+                                extensions=[Markdown])
         self.env.globals['media_url'] = media_url
         self.env.globals['content_url'] = content_url
+        self.env.extend(config=config)
 
         try:
             from typogrify.templatetags import jinja2_filters

hyde/tests/test_jinja2template.py

@@ -9,6 +9,8 @@ Code borrowed from rwbench.py from the jinja2 examples
 from datetime import datetime
 from hyde.ext.templates.jinja import Jinja2Template
 from hyde.fs import File, Folder
+from hyde.model import Config
+
 import jinja2
 from jinja2.utils import generate_lorem_ipsum
 from random import choice, randrange
@@ -81,3 +83,27 @@ def test_typogrify():
     t.configure(None)
     html = t.render(source, {}).strip()
     assert html == u'One <span class="amp">&amp;</span>&nbsp;two'
+
+def test_markdown():
+    source = """
+    {%markdown%}
+    ### Heading 3
+    {%endmarkdown%}
+    """
+    t = Jinja2Template(JINJA2.path)
+    t.configure(None)
+    html = t.render(source, {}).strip()
+    assert html == u'<h3>Heading 3</h3>'
+    
+def test_markdown_with_extensions():
+    source = """
+    {%markdown%}
+    ### Heading 3
+    
+    {%endmarkdown%}
+    """
+    t = Jinja2Template(JINJA2.path)
+    c = Config(JINJA2.path, dict(markdown=dict(extensions=['headerid'])))
+    t.configure(c)
+    html = t.render(source, {}).strip()
+    assert html == u'<h3 id="heading_3">Heading 3</h3>'