Toml frontmatter

crates/service/service-webpage/src/components/md.rs

@@ -16,10 +16,14 @@ lazy_static! {
 		let mut md = markdown_it::MarkdownIt::new();
 		markdown_it::plugins::cmark::add(&mut md);
 		markdown_it::plugins::html::add(&mut md);
+
+		md.block.add_rule::<YamlFrontMatter>().before_all();
+		md.block.add_rule::<TomlFrontMatter>().before_all();
+
 		md.inline.add_rule::<InlineEmote>();
 		md.inline.add_rule::<InlineEmote>();
 		md.inline.add_rule::<InlineMdx>();
-		md.block.add_rule::<FrontMatter>().before_all();
+
 		md
 	};
 }
@@ -47,12 +51,12 @@ impl Markdown<'_> {
 /// Try to read page metadata from a markdown file's frontmatter.
 /// - returns `none` if there is no frontmatter
 /// - returns an error if we fail to parse frontmatter
-pub fn meta_from_markdown(root_node: &Node) -> Result<Option<PageMetadata>, serde_yaml::Error> {
+pub fn meta_from_markdown(root_node: &Node) -> Result<Option<PageMetadata>, toml::de::Error> {
 	root_node
 		.children
 		.first()
-		.and_then(|x| x.cast::<FrontMatter>())
-		.map(|x| serde_yaml::from_str::<PageMetadata>(&x.content))
+		.and_then(|x| x.cast::<TomlFrontMatter>())
+		.map(|x| toml::from_str::<PageMetadata>(&x.content))
 		.map_or(Ok(None), |v| v.map(Some))
 }
 
@@ -323,20 +327,20 @@ fn mdx_include(mdx: &str, _node: &Node, fmt: &mut dyn Renderer) -> bool {
 }
 
 //
-// MARK: frontmatter
+// MARK: yaml frontmatter
 //
 
 #[derive(Debug)]
-/// AST node for front-matter
-pub struct FrontMatter {
+pub struct YamlFrontMatter {
+	#[expect(dead_code)]
 	pub content: String,
 }
 
-impl NodeValue for FrontMatter {
+impl NodeValue for YamlFrontMatter {
 	fn render(&self, _node: &Node, _fmt: &mut dyn Renderer) {}
 }
 
-impl BlockRule for FrontMatter {
+impl BlockRule for YamlFrontMatter {
 	fn run(state: &mut BlockState<'_, '_>) -> Option<(Node, usize)> {
 		// check the parent is the document Root
 		if !state.node.is::<Root>() {
@@ -373,6 +377,56 @@ impl BlockRule for FrontMatter {
 		}
 
 		let (content, _) = state.get_lines(state.line + 1, next_line, 0, true);
-		Some((Node::new(FrontMatter { content }), next_line + 1))
+		Some((Node::new(YamlFrontMatter { content }), next_line + 1))
+	}
+}
+
+//
+// MARK: toml frontmatter
+//
+
+#[derive(Debug)]
+pub struct TomlFrontMatter {
+	pub content: String,
+}
+
+impl NodeValue for TomlFrontMatter {
+	fn render(&self, _node: &Node, _fmt: &mut dyn Renderer) {}
+}
+
+impl BlockRule for TomlFrontMatter {
+	fn run(state: &mut BlockState<'_, '_>) -> Option<(Node, usize)> {
+		if !state.node.is::<Root>() {
+			return None;
+		}
+
+		if state.line != 0 {
+			return None;
+		}
+
+		let opening = state
+			.get_line(state.line)
+			.chars()
+			.take_while(|c| *c == '+')
+			.collect::<String>();
+		if !opening.starts_with("+++") {
+			return None;
+		}
+
+		let mut next_line = state.line;
+		loop {
+			next_line += 1;
+			if next_line >= state.line_max {
+				return None;
+			}
+
+			let line = state.get_line(next_line);
+			if line.starts_with(&opening) {
+				break;
+			}
+		}
+
+		let (content, _) = state.get_lines(state.line + 1, next_line, 0, true);
+		Some((Node::new(TomlFrontMatter { content }), next_line + 1))
 	}
 }

crates/service/service-webpage/src/pages/betalupi.md

@@ -1,8 +1,8 @@
----
-title: "What's a \"betalupi?\""
-author: "Mark"
-slug: whats-a-betalupi
----
++++
+title = "What's a \"betalupi?\""
+author = "Mark"
+slug = "whats-a-betalupi"
++++
 
 [es]: https://github.com/endless-sky/endless-sky
 [*Stellaris*]: https://www.paradoxinteractive.com/games/stellaris/about

crates/service/service-webpage/src/pages/handouts.md

@@ -1,8 +1,8 @@
----
-title: Mark's Handouts
-author: Mark
-slug: handouts
----
++++
+title = "Mark's Handouts"
+author = "Mark"
+slug = "handouts"
++++
 
 # Mark's Handouts
 

crates/service/service-webpage/src/pages/links.md

@@ -1,8 +1,8 @@
----
-title: Links
-author: Mark
-slug: links
----
++++
+title = "Links"
+author = "Mark"
+slug = "links"
++++
 
 
 # Bookmarks