patch 8.1.1354: getting a list of text lines is clumsy
Problem: Getting a list of text lines is clumsy.
Solution: Add the =<< assignment. (Yegappan Lakshmanan, closes #4386)
diff --git a/src/testdir/test_let.vim b/src/testdir/test_let.vim
index 0ff281f..10670b0 100644
--- a/src/testdir/test_let.vim
+++ b/src/testdir/test_let.vim
@@ -151,3 +151,57 @@
let $a = 'ĀĒĪŌŪあいうえお'
call assert_equal('ĀĒĪŌŪあいうえお', $a)
endfunc
+
+" Test for the setting a variable using the heredoc syntax
+func Test_let_heredoc()
+ let var1 =<< END
+Some sample text
+ Text with indent
+ !@#$%^&*()-+_={}|[]\~`:";'<>?,./
+END
+
+ call assert_equal(["Some sample text", "\tText with indent", " !@#$%^&*()-+_={}|[]\\~`:\";'<>?,./"], var1)
+
+ let var2 =<<
+Editor
+.
+ call assert_equal(['Editor'], var2)
+
+ let var3 =<<END
+END
+ call assert_equal([], var3)
+
+ let var3 =<<END
+vim
+
+end
+ END
+END
+END
+ call assert_equal(['vim', '', 'end', ' END', 'END '], var3)
+
+ let var1 =<< trim END
+ Line1
+ Line2
+ Line3
+ END
+ END
+ call assert_equal(['Line1', ' Line2', "\tLine3", ' END'], var1)
+
+ let var1 =<< trim
+ Line1
+ .
+ call assert_equal([' Line1'], var1)
+
+ call assert_fails('let v =<< marker', 'E991:')
+ call assert_fails('call WrongSyntax()', 'E488:')
+ call assert_fails('call MissingEnd()', 'E990:')
+endfunc
+
+func WrongSyntax()
+ let fail =<< that there
+endfunc
+
+func MissingEnd()
+ let fail =<< END
+endfunc