From 5a0b46690e03a6b8d09e8172dfbb450c939f0bf6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E3=82=8A=E3=81=8D=E8=90=8C?= <commits@liquidev.net>
Date: Mon, 15 Sep 2025 23:22:06 +0200
Subject: [PATCH] make headings contain links to themselves

---
 src/html/djot.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/html/djot.rs b/src/html/djot.rs
index 45a6f8d..5e475de 100644
--- a/src/html/djot.rs
+++ b/src/html/djot.rs
@@ -311,6 +311,9 @@ impl<'a> Writer<'a> {
                 }
 
                 match c {
+                    Container::Heading { id, .. } => {
+                        write!(out, r##"><a href="#{id}">"##)?;
+                    }
                     Container::TableCell { alignment, .. }
                         if !matches!(alignment, Alignment::Unspecified) =>
                     {
@@ -445,7 +448,7 @@ impl<'a> Writer<'a> {
                         }
                         out.push_str("</p>");
                     }
-                    Container::Heading { level, .. } => write!(out, "</h{level}>")?,
+                    Container::Heading { level, .. } => write!(out, "</a></h{level}>")?,
                     Container::TableCell { head: false, .. } => out.push_str("</td>"),
                     Container::TableCell { head: true, .. } => out.push_str("</th>"),
                     Container::Caption => out.push_str("</caption>"),