patch 8.1.0296: command parsing for 'incsearch' is a bit ugly commit https://github.com/vim/vim/commit/111bbd61e96d1d3ee4bc07ae435fd97b88413aba Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 18 21:23:05 2018 +0200 patch 8.1.0296: command parsing for 'incsearch' is a bit ugly Problem: Command parsing for 'incsearch' is a bit ugly. Solution: Return when there is no pattern. Put common checks together.

README_src.txt for version 8.1 of Vim: Vi IMproved.

The source archive contains the files needed to compile Vim on Unix systems.
It is packed for Unix systems (NL line separator).

For more information, see the README.txt file that comes with the runtime
archive (vim-8.1-rt.tar.gz).  To be able to run Vim you MUST get the runtime
archive too!