From 3037aa88d87609a6853561a254fc77421d596861 Mon Sep 17 00:00:00 2001
From: Daniel Fichtinger <daniel@ficd.ca>
Date: Sun, 6 Jul 2025 21:09:55 -0400
Subject: [PATCH] added math frontmatter option

---
 src/zona/builder.py  | 21 +++++++--------------
 src/zona/markdown.py |  5 ++++-
 src/zona/metadata.py |  1 +
 3 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/src/zona/builder.py b/src/zona/builder.py
index 8f7a3dc..31140c8 100644
--- a/src/zona/builder.py
+++ b/src/zona/builder.py
@@ -47,9 +47,7 @@ class ZonaBuilder:
                     destination=destination,
                     url=str(destination.relative_to(layout.output)),
                 )
-                if path.name.endswith(
-                    ".md"
-                ) and not path.is_relative_to(
+                if path.name.endswith(".md") and not path.is_relative_to(
                     layout.root / "content" / "static"
                 ):
                     logger.debug(
@@ -72,13 +70,11 @@ class ZonaBuilder:
                     item.copy = False
                     name = destination.stem
                     if name == "index":
-                        item.destination = (
-                            item.destination.with_suffix(".html")
+                        item.destination = item.destination.with_suffix(
+                            ".html"
                         )
                     else:
-                        relative = path.relative_to(base).with_suffix(
-                            ""
-                        )
+                        relative = path.relative_to(base).with_suffix("")
                         name = relative.stem
                         item.destination = (
                             layout.output
@@ -90,9 +86,7 @@ class ZonaBuilder:
                         layout.output
                     )
                     item.url = (
-                        ""
-                        if rel_url == Path(".")
-                        else rel_url.as_posix()
+                        "" if rel_url == Path(".") else rel_url.as_posix()
                     )
                 items.append(item)
         self.items = items
@@ -118,9 +112,7 @@ class ZonaBuilder:
         # write code highlighting stylesheet
         if self.config.markdown.syntax_highlighting.enabled:
             pygments_style = zmd.get_style_defs(self.config)
-            pygments_path = (
-                self.layout.output / "static" / "pygments.css"
-            )
+            pygments_path = self.layout.output / "static" / "pygments.css"
             util.ensure_parents(pygments_path)
             pygments_path.write_text(pygments_style)
         for item in self.item_map.values():
@@ -137,6 +129,7 @@ class ZonaBuilder:
                     source=item.source,
                     layout=self.layout,
                     item_map=self.item_map,
+                    metadata=item.metadata,
                 )
                 # TODO: test this
                 rendered = templater.render_item(item, raw_html)
diff --git a/src/zona/markdown.py b/src/zona/markdown.py
index f41a45d..ce73016 100644
--- a/src/zona/markdown.py
+++ b/src/zona/markdown.py
@@ -31,6 +31,7 @@ from zona import util
 from zona.config import ZonaConfig
 from zona.layout import Layout
 from zona.log import get_logger
+from zona.metadata import Metadata
 from zona.models import Item
 
 logger = get_logger()
@@ -143,6 +144,7 @@ def md_to_html(
     source: Path | None = None,
     layout: Layout | None = None,
     item_map: dict[Path, Item] | None = None,
+    metadata: Metadata | None = None,
 ) -> str:
     extensions: Sequence[Any] = [
         BetterEmExtension(),
@@ -163,12 +165,13 @@ def md_to_html(
         SaneListExtension(),
         MarkdownInHtmlExtension(),
         EscapeAllExtension(hardbreak=True),
-        LaTeX2MathMLExtension(),
     ]
     kwargs: dict[str, Any] = {
         "extensions": extensions,
         "tab_length": 2,
     }
+    if metadata and metadata.math:
+        kwargs["extensions"].append(LaTeX2MathMLExtension())
     if config:
         kwargs["extensions"].extend(
             [
diff --git a/src/zona/metadata.py b/src/zona/metadata.py
index 63fc43f..b079266 100644
--- a/src/zona/metadata.py
+++ b/src/zona/metadata.py
@@ -24,6 +24,7 @@ class Metadata:
     template: str | None = None
     post: bool | None = None
     draft: bool = False
+    math: bool = True
 
 
 def parse_date(raw_date: str | date | object) -> date: