added markdown extensions, disables indented code blocks

src/zona/markdown.py

@@ -10,12 +10,19 @@ from zona.layout import Layout
 
 from markdown.treeprocessors import Treeprocessor
 from markdown.extensions.codehilite import CodeHiliteExtension
-from markdown.extensions.extra import ExtraExtension
 from markdown.extensions.smarty import SmartyExtension
 from markdown.extensions.sane_lists import SaneListExtension
-from markdown.extensions.md_in_html import MarkdownInHtmlExtension
 from pymdownx.inlinehilite import InlineHiliteExtension
 from pymdownx.escapeall import EscapeAllExtension
+from pymdownx.betterem import BetterEmExtension
+from pymdownx.superfences import SuperFencesCodeExtension
+from markdown.extensions.footnotes import FootnoteExtension
+from markdown.extensions.attr_list import AttrListExtension
+from markdown.extensions.def_list import DefListExtension
+from markdown.extensions.tables import TableExtension
+from markdown.extensions.abbr import AbbrExtension
+from markdown.extensions.md_in_html import MarkdownInHtmlExtension
+
 import xml.etree.ElementTree as etree
 
 from zona import util
@@ -134,12 +141,20 @@ def md_to_html(
     item_map: dict[Path, Item] | None = None,
 ) -> str:
     extensions: Sequence[Any] = [
-        ExtraExtension(),
+        BetterEmExtension(),
+        SuperFencesCodeExtension(
+            disable_indented_code_blocks=True,
+            css_class="codehilite",
+        ),
+        FootnoteExtension(),
+        AttrListExtension(),
+        DefListExtension(),
+        TableExtension(),
+        AbbrExtension(),
         SmartyExtension(),
         "pymdownx.tilde",
         "pymdownx.caret",
         "pymdownx.smartsymbols",
-        InlineHiliteExtension(css_class="codehilite"),
         SaneListExtension(),
         MarkdownInHtmlExtension(),
         EscapeAllExtension(hardbreak=True),
@@ -149,12 +164,15 @@ def md_to_html(
         "tab_length": 2,
     }
     if config:
-        kwargs["extensions"].append(
+        kwargs["extensions"].extend(
+            [
                 CodeHiliteExtension(
                     linenums=False,
                     noclasses=False,
                     pygments_style=config.markdown.syntax_highlighting.theme,
-            )
+                ),
+                InlineHiliteExtension(css_class="codehilite"),
+            ]
         )
         kwargs["tab_length"] = config.markdown.tab_length
     md = Markdown(**kwargs)