added core macros plugin with initial article_list macro

wiki/plugins/macros/markdown_extensions.py

+import markdown
+import re
+
+from django.template.loader import render_to_string
+from django.template import Context
+
+MACRO_RE = re.compile(r'.*(\[(?P<macro>\w+)(\:(?P<arg>\w+))?\]).*', re.IGNORECASE)
+
+
+class MacroExtension(markdown.Extension):
+    """ Macro plugin markdown extension for django-wiki. """
+
+    def extendMarkdown(self, md, md_globals):
+        """ Insert MacroPreprocessor before ReferencePreprocessor. """
+        md.preprocessors.add('dw-macros', MacroPreprocessor(md), '>html_block')
+
+
+class MacroPreprocessor(markdown.preprocessors.Preprocessor):
+    """django-wiki macro preprocessor - parse text for various [some_macro] and 
+    [some_macro:arg] references. """
+
+    def run(self, lines):
+        new_text = []
+        for line in lines:
+            m = MACRO_RE.match(line)
+            if m:
+                macro = m.group('macro').strip()
+                arg = m.group('arg')
+                if arg:
+                    arg = arg.strip()
+                try:
+                    line = getattr(self, macro)(arg)
+                except AttributeError:
+                    pass       
+            if not line is None:
+                new_text.append(line)
+        return new_text
+
+    def article_list(self, arg=None):
+        html = render_to_string(
+            "wiki/plugins/macros/article_list.html",
+            Context({
+                'article_children': self.markdown.article.get_children,
+            })
+        )
+        return self.markdown.htmlStash.store(html, safe=True)
+    

wiki/plugins/macros/settings.py

+from django.conf import settings as django_settings
+from wiki.conf import settings as wiki_settings
+
+SLUG = 'macros'
+APP_LABEL = 'wiki'

wiki/plugins/macros/templates/wiki/plugins/macros/article_list.html

+{% load wiki_macro_tags %}
+{% if article_children %}
+    <div class="well">
+        <h3>Articles</h3>
+        <br/>
+            {% for child in article_children %}
+                {% article_list child %}
+            {% endfor %}
+    </div>
+{% endif %}

wiki/plugins/macros/templates/wiki/plugins/templatetags/article_list.html

+{% load wiki_macro_tags %}
+<p><a href="{% url wiki:get path=urlpath.path %}">{{ urlpath.article }}</a></p>
+<div> 
+    <ul>
+        <li>
+            {% for urlpath in urlpath.children.all %}
+                {% article_list urlpath %}
+            {% endfor %}
+        </li>
+    </ul>
+</div>

wiki/plugins/macros/templatetags/wiki_macro_tags.py

+from django import template
+
+register = template.Library()
+
+
+@register.inclusion_tag(
+    'wiki/plugins/templatetags/article_list.html',
+    takes_context=True
+)
+def article_list(context, urlpath):
+    context['urlpath'] = urlpath 
+    return context 
+
+

wiki/plugins/macros/wiki_plugin.py

+# -*- coding: utf-8 -*-
+from wiki.core.plugins import registry
+from wiki.core.plugins.base import BasePlugin
+from wiki.plugins.macros import settings
+from wiki.plugins.macros.markdown_extensions import MacroExtension
+
+
+class MacroPlugin(BasePlugin):
+    
+    slug = settings.SLUG
+    
+    markdown_extensions = [MacroExtension()]
+    
+    def __init__(self):
+        pass
+    
+registry.register(MacroPlugin)