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runtime(vim): Improve Vim9 and legacy-script comment highlighting (#13104)

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This is a first-pass attempt to limit matching of Vim9 and legacy-script
comments to the appropriate syntactic contexts.

Vim9-script comments are highlighted at top level in a Vim9-script file,
in all :def functions, and in all :autocmd and :commmand command blocks.
Legacy-script comments are highlighted at top level in a legacy script
file, in all :func functions and in the Vim9-script preamble before the
:vim9script marker command.

Fixes #13047, #11307 and #9587.

Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
dkearns
2024-04-11 06:18:37 +10:00
committed by GitHub
parent 1817ccdb10
commit 04e5363b82
30 changed files with 622 additions and 91 deletions
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8
runtime/ftplugin/vim.vim
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@ -1,7 +1,7 @@
" Vim filetype plugin
" Language: Vim
" Maintainer: The Vim Project <https://github.com/vim/vim>
" Last Change: 2023 Aug 10
" Language: Vim
" Maintainer: Doug Kearns <dougkearns@gmail.com>
" Last Change: 2024 Apr 08
" Former Maintainer: Bram Moolenaar <Bram@vim.org>
" Only do this when not done yet for this buffer
@ -50,7 +50,7 @@ setlocal isk+=#
setlocal keywordprg=:help
" Comments starts with # in Vim9 script. We have to guess which one to use.
if "\n" .. getline(1, 10)->join("\n") =~# '\n\s*vim9\%[script]\>'
if "\n" .. getline(1, 32)->join("\n") =~# '\n\s*vim9\%[script]\>'
setlocal commentstring=#%s
else
setlocal commentstring=\"%s