Commit: runtime(vim): Update base-syntax, revert last change to vimUserFunc (#14202)

[Christian Brabandt]

runtime(vim): Update base-syntax, revert last change to vimUserFunc (#14202)

Commit: https://github.com/vim/vim/commit/b4b3d7de2413bf277445ea724c9cbd5e6bf9a334
Author: dkearns <dougk...@gmail.com>
Date: Sat Mar 16 04:53:53 2024 +1100

runtime(vim): Update base-syntax, revert last change to vimUserFunc (https://github.com/vim/vim/issues/14202)

Fix highlighting of ":echo (expr)" (broken in commit 61887b3) by
re-enabling the original fix for https://github.com/vim/vim/issues/9987.

Addresses https://github.com/vim/vim/pull/14199#issuecomment-1999732062.

This will be fixed more generally when there is context-sensitive
matching for commands and functions.

Signed-off-by: Doug Kearns <dougk...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/syntax/testdir/dumps/vim_ex_echo_99.dump b/runtime/syntax/testdir/dumps/vim_ex_echo_99.dump
index ba37bb708..db81b404f 100644
--- a/runtime/syntax/testdir/dumps/vim_ex_echo_99.dump
+++ b/runtime/syntax/testdir/dumps/vim_ex_echo_99.dump
@@ -13,7 +13,7 @@
|l+0#af5f00255&|e|t| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|=+0#af5f00255&| +0#0000000&|{+0#e000e06&|'+0#e000002&|e|n|d|'|:+0#0000000&| |1+0#e000002&|2|3|}+0#e000e06&| +0#0000000&@52
@75
|i+0#af5f00255&|f| +0#0000000&|1+0#e000002&|2|3| +0#0000000&@68
-@8|e|c|h|o| |(+0#e000e06&|f+0#00e0e07&|o@1|.+0#af5f00255&|e+0#00e0e07&|n|d|)+0#e000e06&| +0#0000000&@52
+@8|e+0#af5f00255&|c|h|o| +0#0000000&|(+0#e000e06&|f+0#00e0e07&|o@1|.+0#af5f00255&|e+0#00e0e07&|n|d|)+0#e000e06&| +0#0000000&@52
|e+0#af5f00255&|l|s|e| +0#0000000&@70
@8|e+0#af5f00255&|c|h|o| +0#0000000&|'+0#e000002&|b|a|r|'| +0#0000000&@56
>e+0#af5f00255&|n|d|i|f| +0#0000000&@69
diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
index 174520f4a..ec617c762 100644
--- a/runtime/syntax/vim.vim
+++ b/runtime/syntax/vim.vim
@@ -585,8 +585,10 @@ syn case match
" User Function Highlighting: {{{2
" (following Gautam Iyer's suggestion)
" ==========================
-syn match vimFunc "\%(\%([sSgGbBwWtTlL]:\|<[sS][iI][dD]>\)\=\%(\w\+\.\)*\I[a-zA-Z0-9_.]*\)\ze\s*(" contains=vimFuncName,vimUserFunc,vimExecute
-syn match vimUserFunc contained "\%(\%([sSgGbBwWtTlL]:\|<[sS][iI][dD]>\)\=\%(\w\+\.\)*\I[a-zA-Z0-9_.]*\)\|\<\u[a-zA-Z0-9.]*\>\|\<if\>" contains=vimNotation
+syn match vimFunc "\%(\%([sSgGbBwWtTlL]:\|<[sS][iI][dD]>\)\=\%(\w\+\.\)*\I[a-zA-Z0-9_.]*\)\ze\s*(" contains=vimFuncEcho,vimFuncName,vimUserFunc,vimExecute
+syn match vimUserFunc contained "\%(\%([sSgGbBwWtTlL]:\|<[sS][iI][dD]>\)\=\%(\w\+\.\)*\I[a-zA-Z0-9_.]*\)\|\<\u[a-zA-Z0-9.]*\>\|\<if\>" contains=vimNotation
+syn keyword vimFuncEcho contained ec ech echo
+

" User Command Highlighting: {{{2
syn match vimUsrCmd '^\s*\zs\u\%(\w*\)\@>\%([(#[]\|\s\+\%([-+*/%]\=\|\.\.\)=\)\@!'