patch 8.2.3900: it is not easy to use a script-local function for an option
Problem: It is not easy to use a script-local function for an option.
Solution: recognize s: and <SID> at the start of the expression. (Yegappan
Lakshmanan, closes #9401)
diff --git a/src/testdir/test_normal.vim b/src/testdir/test_normal.vim
index 57ea6d3..6458a1b 100644
--- a/src/testdir/test_normal.vim
+++ b/src/testdir/test_normal.vim
@@ -253,6 +253,45 @@
close!
endfunc
+" Test for using a script-local function for 'formatexpr'
+func Test_formatexpr_scriptlocal_func()
+ func! s:Format()
+ let g:FormatArgs = [v:lnum, v:count]
+ endfunc
+ set formatexpr=s:Format()
+ call assert_equal(expand('<SID>') .. 'Format()', &formatexpr)
+ new | only
+ call setline(1, range(1, 40))
+ let g:FormatArgs = []
+ normal! 2GVjgq
+ call assert_equal([2, 2], g:FormatArgs)
+ bw!
+ set formatexpr=<SID>Format()
+ call assert_equal(expand('<SID>') .. 'Format()', &formatexpr)
+ new | only
+ call setline(1, range(1, 40))
+ let g:FormatArgs = []
+ normal! 4GVjgq
+ call assert_equal([4, 2], g:FormatArgs)
+ bw!
+ let &formatexpr = 's:Format()'
+ new | only
+ call setline(1, range(1, 40))
+ let g:FormatArgs = []
+ normal! 6GVjgq
+ call assert_equal([6, 2], g:FormatArgs)
+ bw!
+ let &formatexpr = '<SID>Format()'
+ new | only
+ call setline(1, range(1, 40))
+ let g:FormatArgs = []
+ normal! 8GVjgq
+ call assert_equal([8, 2], g:FormatArgs)
+ setlocal formatexpr=
+ delfunc s:Format
+ bw!
+endfunc
+
" basic test for formatprg
func Test_normal06_formatprg()
" only test on non windows platform