From 054e5f465d8c1288b866df67d7f773157d1f9cdc Mon Sep 17 00:00:00 2001
From: Alex Tideman <alex.tideman@gmail.com>
Date: Thu, 20 Feb 2025 15:29:56 -0600
Subject: [PATCH] Add lineBreakReplacer extention

---
 src/lib/holocene/code-block.svelte | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/lib/holocene/code-block.svelte b/src/lib/holocene/code-block.svelte
index 2a13c10b9..5d1b45da4 100644
--- a/src/lib/holocene/code-block.svelte
+++ b/src/lib/holocene/code-block.svelte
@@ -91,6 +91,16 @@
 
   $: value = formatValue({ value: content, language });
 
+  const lineBreakReplacer = EditorView.updateListener.of((update) => {
+    if (editable) return;
+    const newText = update.state.doc.toString().replace(/\\n/g, '\n');
+    if (newText !== update.state.doc.toString()) {
+      update.view.dispatch({
+        changes: { from: 0, to: update.state.doc.length, insert: newText },
+      });
+    }
+  });
+
   const createEditorView = (isDark: boolean): EditorView => {
     return new EditorView({
       parent: editor,
@@ -120,6 +130,7 @@
       EditorState.readOnly.of(!editable),
       EditorView.editable.of(editable),
       EditorView.contentAttributes.of({ 'aria-label': label }),
+      lineBreakReplacer,
     ];
 
     if (language === 'json') {