patch 8.1.1884: cannot use mouse scroll wheel in popup in Insert mode commit https://github.com/vim/vim/commit/f0bc15c769b60f472d411b3ef98d57db510113c1 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Aug 18 19:23:45 2019 +0200 patch 8.1.1884: cannot use mouse scroll wheel in popup in Insert mode Problem: Cannot use mouse scroll wheel in popup in Insert mode. Mouse clicks in popup close the popup menu. Solution: Check if the mouse is in a popup window. Do not let mouse events close the popup menu. (closes #4544)

" Vim compiler file
" Compiler:	HTML Tidy
" Maintainer:	Doug Kearns <dougkearns@gmail.com>
" Last Change:	2016 Apr 21

if exists("current_compiler")
  finish
endif
let current_compiler = "tidy"

if exists(":CompilerSet") != 2		" older Vim always used :setlocal
  command -nargs=* CompilerSet setlocal <args>
endif

CompilerSet makeprg=tidy\ -quiet\ -errors\ --gnu-emacs\ yes\ %:S

" foo.html:8:1: Warning: inserting missing 'foobar' element
" foo.html:9:2: Error: <foobar> is not recognized!
CompilerSet errorformat=%f:%l:%c:\ %trror:%m,%f:%l:%c:\ %tarning:%m,%-G%.%#