patch 8.2.1978: making a mapping work in all modes is complicated Commit: https://github.com/vim/vim/commit/957cf67d50516ba98716f59c9e1cb6412ec1535d Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 12 14:21:06 2020 +0100 patch 8.2.1978: making a mapping work in all modes is complicated Problem: Making a mapping work in all modes is complicated. Solution: Add the <Cmd> special key. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/7282, closes 4784, based on patch by Bjorn Linse)

" Vim compiler file
" Compiler:	onsgmls
" Maintainer:	Robert Rowsome <rowsome@wam.umd.edu>
" Last Change:	2019 Jul 23

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

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

let s:cpo_save = &cpo
set cpo-=C

CompilerSet makeprg=onsgmls\ -s\ %:S

CompilerSet errorformat=onsgmls:%f:%l:%c:%t:%m,
		    \onsgmls:%f:%l:%c:%m

let &cpo = s:cpo_save
unlet s:cpo_save