vim-patch:9c5b90db035b

runtime(vim): Update syntax file (vim/vim#13906)

Highlight :2match and :3match and add these to :help ex-cmd-index.

https://github.com/vim/vim/commit/9c5b90db035b0e488f4cc686514a8d2a42265eb2

Co-authored-by: dkearns <dougkearns@gmail.com>

runtime/doc/index.txt

@@ -1146,6 +1146,8 @@ tag		command		action ~
 |:>|		:>		shift lines one 'shiftwidth' right
 |:@|		:@		execute contents of a register
 |:@@|		:@@		repeat the previous ":@"
+|:2match|	:2mat[ch]	define a second match to highlight
+|:3match|	:3mat[ch]	define a third match to highlight
 |:Next|		:N[ext]		go to previous file in the argument list
 |:append|	:a[ppend]	append text
 |:abbreviate|	:ab[breviate]	enter abbreviation

runtime/syntax/vim.vim

@@ -59,6 +59,9 @@ syn keyword vimOnlyHLGroup contained	LineNrAbove LineNrBelow StatusLineTerm Term
 syn keyword nvimHLGroup contained	Substitute TermCursor TermCursorNC
 "}}}2
 syn case match
+
+syn keyword vimCommand contained	2mat[ch] 3mat[ch]
+
 " Special Vim Highlighting (not automatic) {{{1
 
 " Set up folding commands for this syntax highlighting file {{{2
@@ -150,7 +153,7 @@ syn match vimNumber	'0[bB][01]\+'		       skipwhite nextgroup=vimGlobal,vimSubst
 
 " All vimCommands are contained by vimIsCommand. {{{2
 syn match vimCmdSep	"[:|]\+"	skipwhite nextgroup=vimAbb,vimAddress,vimAutoCmd,vimAugroup,vimBehave,vimEcho,vimEchoHL,vimExecute,vimIsCommand,vimExtCmd,vimFilter,vimGlobal,vimHighlight,vimLet,vimMap,vimMark,vimNorm,vimSet,vimSyntax,vimUnlet,vimUnmap,vimUserCmd
-syn match vimIsCommand	"\<\h\w*\>"	contains=vimCommand
+syn match vimIsCommand	"\<\%(\h\w*\|[23]mat\%[ch]\)\>"	contains=vimCommand
 syn match vimVar	      contained	"\<\h[a-zA-Z0-9#_]*\>"
 syn match vimVar		"\<[bwglstav]:\h[a-zA-Z0-9#_]*\>"
 syn match vimVar	      	"\s\zs&\%([lg]:\)\=\a\+\>"