This is the command invoked repeatedly to make the changes:
:%s/^\(.*\)|\%(\*\(\d\+\)\)\?$\n\1|\%(\*\(\d\+\)\)\?$/\=submatch(1)..'|*'..(max([str2nr(submatch(2)),1])+max([str2nr(submatch(3)),1]))/g
Problem: Matchparen highlight is not updated when switching buffers.
Solution: Listen to the BufLeave and the BufWinEnter autocmd events.
(closesvim/vim#11626)
28a896f54d
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: Not enough folding code is tested.
Solution: Add more test cases. (Yegappan Lakshmanan, closesvim/vim#8046)
5c504f680e
Reorder test_fold.vim to match upstream.
Cherry-pick Test_fold_expr_error() from patch 8.2.0633.
Cherry-pick syntax feature check from patch 8.2.1432.
Cherry-pick a delete() call from patch 8.2.2112.