fix issues when pasting multiple cells with quoted text and new lines

Author: tamagokun

src/utils/copyPasting.test.ts

@@ -138,6 +138,23 @@ describe('parsePlainTextData', () => {
     expect(parseTextPlainData('"foo\nbar""baz"""')).toEqual([['foo\nbar"baz"']])
   })
 
+  test('single cell multi line clean', () => {
+    expect(parseTextPlainData('"foo\nbar"')).toEqual([['foo\nbar']])
+  })
+
+  test('multi cell multi line', () => {
+    expect(parseTextPlainData('"foo\nbar"\n"baz\nqux"')).toEqual([
+      ['foo\nbar'],
+      ['baz\nqux'],
+    ])
+  })
+
+  test('multi cell single line', () => {
+    expect(parseTextPlainData('"foo\nbar"\t"baz\nqux"')).toEqual([
+      ['foo\nbar', 'baz\nqux'],
+    ])
+  })
+
   test('quoted first cell', () => {
     expect(parseTextPlainData('"foo\nbar')).toEqual([['"foo'], ['bar']])
   })

src/utils/copyPasting.ts

@@ -38,9 +38,13 @@ export const parseTextPlainData = (data: string): string[][] => {
 
   const saveCell = () => {
     let str = cleanData.slice(startCell, cursor)
+    if (str[0] === '"' && str[str.length - 1] === '"') {
+      quoted = true
+    }
 
     if (quoted && str[str.length - 1] === '"' && str.includes('\n')) {
       str = str.slice(1, str.length - 1).replace(/""/g, '"')
+      quoted = false
     }
 
     if (quoted && str[str.length - 1] !== '"') {