patch 9.0.2058: tests: avoid error when no swap files exist Commit: https://github.com/vim/vim/commit/a36acb7ac444a789440dc30e0f04d5427069face Author: zeertzjq <zeertzjq@outlook.com> Date: Sat Oct 21 11:50:26 2023 +0200 patch 9.0.2058: tests: avoid error when no swap files exist Problem: tests: avoid error when no swap files exist Solution: use unlet! so that no error message is reported in case the variable does not exists When s:GetSwapFileList() does not find any swapfiles, it will return an empty list []. This means, that the variable 'name' will not be declared, cause the following unlet command to fail and causing a 1 sec delay on running the tests. So let's instead use the :unlet! command which simply skips reporting an error when the variable given as parameter does not exists. closes: #13396 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: zeertzjq <zeertzjq@outlook.com>

" Vim syntax file
" Language:	CTRL-H (e.g., ASCII manpages)
" Maintainer:	The Vim Project <https://github.com/vim/vim>
" Last Change:	2023 Aug 10
" Former Maintainer:	Bram Moolenaar <Bram@vim.org>

" Existing syntax is kept, this file can be used as an addition

" Recognize underlined text: _^Hx
syntax match CtrlHUnderline /_\b./  contains=CtrlHHide

" Recognize bold text: x^Hx
syntax match CtrlHBold /\(.\)\b\1/  contains=CtrlHHide

" Hide the CTRL-H (backspace)
syntax match CtrlHHide /.\b/  contained

" Define the default highlighting.
" Only used when an item doesn't have highlighting yet
hi def link CtrlHHide Ignore
hi def CtrlHUnderline term=underline cterm=underline gui=underline
hi def CtrlHBold term=bold cterm=bold gui=bold

" vim: ts=8