Add support for custom filters

__init__.py

@@ -1 +1,42 @@
-from .jinja2content import *
+import os
+
+from pelican import signals
+from pelican import contents
+
+from jinja2 import Environment, ChoiceLoader, FileSystemLoader
+
+
+def execjinja2(instance):
+    if type(instance) in (contents.Article, contents.Page):
+        base_path = os.path.dirname(os.path.abspath(__file__))
+        jinja2_env = Environment(
+            autoescape=True,
+            trim_blocks=True,
+            lstrip_blocks=True,
+            loader=ChoiceLoader([
+                FileSystemLoader(
+                    os.path.join(base_path, instance.settings['THEME'], 'templates')
+                ),
+                FileSystemLoader(
+                    os.path.join(base_path, instance.settings['PATH'])
+                )
+            ]),
+            extensions=instance.settings['JINJA_EXTENSIONS'],
+        )
+
+        if 'JINJA_FILTERS' in instance.settings:
+            jinja2_env.filters.update(instance.settings['JINJA_FILTERS'])
+
+        jinja2_template = jinja2_env.from_string(instance._content)
+
+        kwargs = instance._context
+        if type(instance) is contents.Article:
+            kwargs['article'] = instance
+        elif type(instance) is contents.Page:
+            kwargs['page'] = instance
+
+        instance._content = jinja2_template.render(**kwargs)
+
+
+def register():
+    signals.content_object_init.connect(execjinja2)