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vim-patch:8.1.1114: confusing overloaded operator "." for string concatenation

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Problem:    Confusing overloaded operator "." for string concatenation.
Solution:   Add ".." for string concatenation.  Also "let a ..= b".
0f248b006c
This commit is contained in:
erw7
2019-05-29 12:06:39 +09:00
parent d46aaa0746
commit bfc44a91ac
3 changed files with 50 additions and 8 deletions
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29
src/nvim/testdir/test_eval_stuff.vim
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@@ -49,3 +49,32 @@ func Test_line_continuation()
"\ and some more
call assert_equal([5, 6], array)
endfunc
func Test_string_concatenation()
call assert_equal('ab', 'a'.'b')
call assert_equal('ab', 'a' .'b')
call assert_equal('ab', 'a'. 'b')
call assert_equal('ab', 'a' . 'b')
call assert_equal('ab', 'a'..'b')
call assert_equal('ab', 'a' ..'b')
call assert_equal('ab', 'a'.. 'b')
call assert_equal('ab', 'a' .. 'b')
let a = 'a'
let b = 'b'
let a .= b
call assert_equal('ab', a)
let a = 'a'
let a.=b
call assert_equal('ab', a)
let a = 'a'
let a ..= b
call assert_equal('ab', a)
let a = 'a'
let a..=b
call assert_equal('ab', a)
endfunc