From a9908337f9867c65424bcd48d9c87dc0c067acc7 Mon Sep 17 00:00:00 2001
From: MYCyw <104288043+MYCyw@users.noreply.github.com>
Date: Fri, 28 Oct 2022 12:53:52 +0800
Subject: [PATCH] fix blank cells at start and end

test each row by regex and remove blank rows, instead of using trim()
---
 script.js | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/script.js b/script.js
index d12f98d..65bfbc4 100644
--- a/script.js
+++ b/script.js
@@ -12,7 +12,7 @@ function looksLikeTable(data) {
 
 editor.addEventListener("paste", function(event) {
   var clipboard = event.clipboardData
-  var data = clipboard.getData('text/plain').trim()
+  var data = clipboard.getData('text/plain')
 
   if(looksLikeTable(data)) {
     event.preventDefault()
@@ -20,10 +20,15 @@ editor.addEventListener("paste", function(event) {
     return
   }
 
-  var rows = data.split((/[\u0085\u2028\u2029]|\r\n?/g)).map(function(row) {
-    row = row.replace('\n', ' ')
-    return row.split("\t")
-  })
+  var rows = data
+    .split(/[\u0085\u2028\u2029]|\r?\n/g)
+    .reduce(function (result, row) {
+      const re = /^[\t\n]*$/;
+      if (!re.test(row)) {
+        result.push(row.replace("\n", " ").split("\t"));
+      }
+      return result;
+    }, []);
 
   var colAlignments = []