Changeset 42 for bitstructures/trunk/substructure/templatetags

Timestamp:

01/06/08 14:41:54 (11 months ago)

Author:

simon

Message:

implemented syntax highlighting for codeblocks

Files:

• bitstructures/trunk/substructure/templatetags/substructure_tags.py (modified) (2 diffs)

bitstructures/trunk/substructure/templatetags/substructure_tags.py

@@ -1 +1 @@
 from django import template
 from django.utils.tzinfo import LocalTimezone
+from markdown import markdown
+from pygments import highlight
+from pygments.lexers import get_lexer_for_mimetype
+from pygments.formatters import HtmlFormatter
+from bitstructures.substructure.codeblocks import MarkdownCodeblocksParser
 
 def rfc3339(dt):
@@ -9 +14 @@
     return dt_out.isoformat()
 
+def syntax_highlighted_markdown(markdown_text):
+    parser = MarkdownCodeblocksParser()
+    formatter = HtmlFormatter()
+    sections = parser.parse(markdown_text)
+    for_markdown = list()
+    html = list()
+    for section in sections:
+        if section.is_codeblock() and section.content_type:
+            # run Markdown on any text that isn't to be syntax highlighted
+            if for_markdown:
+                html.append(markdown(''.join(for_markdown)))
+                for_markdown = list()
+            # run Pygments on code to be syntax highlighted
+            html.append(highlight(section.get_code(),
+                get_lexer_for_mimetype(section.content_type), formatter))
+        else:
+            for_markdown.append(section.get_text())
+    # run Markdown on any remaining text that isn't to be syntax highlighted
+    if for_markdown:
+        html.append(markdown(''.join(for_markdown)))
+    return ''.join(html)
+
 register = template.Library()
-register.filter("rfc3339", rfc3339)
+register.filter('rfc3339', rfc3339)
+register.filter('syntax_highlighted_markdown', syntax_highlighted_markdown)