From 447311b0614cd09e29a55e46c38153ea9a1b3247 Mon Sep 17 00:00:00 2001
From: Hsieh Chin Fan <pham@topo.tw>
Date: Sun, 6 Oct 2024 21:11:39 +0800
Subject: feat: fix top padding of reference style links

---
 src/editor.mjs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'src/editor.mjs')

diff --git a/src/editor.mjs b/src/editor.mjs
index 8fe8c0b..71e66be 100644
--- a/src/editor.mjs
+++ b/src/editor.mjs
@@ -12,6 +12,8 @@ const context = document.querySelector('[data-mode]')
 const dumbyContainer = document.querySelector('.DumbyMap')
 const textArea = document.querySelector('.editor textarea')
 let dumbymap
+
+const refLinkPattern = /\[([^\[\]]+)\]:\s+(.+)/
 let refLinks = []
 
 /**
@@ -196,7 +198,7 @@ const cm = editor.codemirror
 const getRefLinks = () => editor.value()
   .split('\n')
   .map(line => {
-    const [, ref, link] = line.match(/\[([^\[\]]+)\]:\s+(.+)/) ?? []
+    const [, ref, link] = line.match(refLinkPattern) ?? []
     return { ref, link }
   })
   .filter(({ ref, link }) => ref && link)
@@ -432,7 +434,11 @@ const menuForEditor = (event, menu) => {
         }
         while (refLinks.find(({ref}) => ref === anchorName))
 
-        cm.replaceRange(`\n[${anchorName}]: ${link}`, { line: Infinity })
+        const lastLineIsRefLink = cm.getLine(cm.lastLine()).match(refLinkPattern)
+        cm.replaceRange(
+          `${lastLineIsRefLink ? '' : '\n'}\n[${anchorName}]: ${link}`,
+          { line: Infinity }
+        )
       }
     })
     menu.insertBefore(item, menu.firstChild)
-- 
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