made the pack completely portable and wrote relevent bat files to go with it

gitportable/usr/share/vim/vim91/syntax/sed.vim

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+" Vim syntax file
+" Language:		sed
+" Maintainer:		Doug Kearns <dougkearns@gmail.com>
+" Previous Maintainer:	Haakon Riiser <hakonrk@fys.uio.no>
+" Contributor:		Jack Haden-Enneking
+" Last Change:		2022 Oct 15
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+  finish
+endif
+
+syn keyword sedTodo	contained TODO FIXME XXX
+
+syn match sedError	"\S"
+
+syn match sedWhitespace "\s\+" contained
+syn match sedSemicolon	";"
+syn match sedAddress	"[[:digit:]$]"
+syn match sedAddress	"\d\+\~\d\+"
+syn region sedAddress	matchgroup=Special start="[{,;]\s*/\%(\\/\)\="lc=1 skip="[^\\]\%(\\\\\)*\\/" end="/I\=" contains=sedTab,sedRegexpMeta
+syn region sedAddress	matchgroup=Special start="^\s*/\%(\\/\)\=" skip="[^\\]\%(\\\\\)*\\/" end="/I\=" contains=sedTab,sedRegexpMeta
+syn match sedFunction	"[dDgGhHlnNpPqQx=]\s*\%($\|;\)" contains=sedSemicolon,sedWhitespace
+if exists("g:sed_dialect") && g:sed_dialect ==? "bsd"
+  syn match sedComment	"^\s*#.*$" contains=sedTodo
+else
+  syn match sedFunction	"[dDgGhHlnNpPqQx=]\s*\ze#" contains=sedSemicolon,sedWhitespace
+  syn match sedComment	"#.*$" contains=sedTodo
+endif
+syn match sedLabel	":[^;]*"
+syn match sedLineCont	"^\%(\\\\\)*\\$" contained
+syn match sedLineCont	"[^\\]\%(\\\\\)*\\$"ms=e contained
+syn match sedSpecial	"[{},!]"
+
+" continue to silently support the old name
+let s:highlight_tabs = v:false
+if exists("g:highlight_sedtabs") || get(g:, "sed_highlight_tabs", 0)
+  let s:highlight_tabs = v:true
+  syn match sedTab	"\t" contained
+endif
+
+" Append/Change/Insert
+syn region sedACI	matchgroup=sedFunction start="[aci]\\$" matchgroup=NONE end="^.*$" contains=sedLineCont,sedTab
+
+syn region sedBranch	matchgroup=sedFunction start="[bt]" matchgroup=sedSemicolon end=";\|$" contains=sedWhitespace
+syn region sedRW	matchgroup=sedFunction start="[rw]" matchgroup=sedSemicolon end=";\|$" contains=sedWhitespace
+
+" Substitution/transform with various delimiters
+syn region sedFlagWrite	    matchgroup=sedFlag start="w" matchgroup=sedSemicolon end=";\|$" contains=sedWhitespace contained
+syn match sedFlag	    "[[:digit:]gpI]*w\=" contains=sedFlagWrite contained
+syn match sedRegexpMeta	    "[.*^$]" contained
+syn match sedRegexpMeta	    "\\." contains=sedTab contained
+syn match sedRegexpMeta	    "\[.\{-}\]" contains=sedTab contained
+syn match sedRegexpMeta	    "\\{\d\*,\d*\\}" contained
+syn match sedRegexpMeta	    "\\%(.\{-}\\)" contains=sedTab contained
+syn match sedReplaceMeta    "&\|\\\%($\|.\)" contains=sedTab contained
+
+" Metacharacters: $ * . \ ^ [ ~
+" @ is used as delimiter and treated on its own below
+let s:at = char2nr("@")
+let s:i = char2nr(" ") " ASCII: 32, EBCDIC: 64
+if has("ebcdic")
+  let s:last = 255
+else
+  let s:last = 126
+endif
+let s:metacharacters = '$*.\^[~'
+while s:i <= s:last
+  let s:delimiter = escape(nr2char(s:i), s:metacharacters)
+  if s:i != s:at
+    exe 'syn region sedAddress matchgroup=Special start=@\\'.s:delimiter.'\%(\\'.s:delimiter.'\)\=@ skip=@[^\\]\%(\\\\\)*\\'.s:delimiter.'@ end=@'.s:delimiter.'[IM]\=@ contains=sedTab'
+    exe 'syn region sedRegexp'.s:i  'matchgroup=Special start=@'.s:delimiter.'\%(\\\\\|\\'.s:delimiter.'\)*@ skip=@[^\\'.s:delimiter.']\%(\\\\\)*\\'.s:delimiter.'@ end=@'.s:delimiter.'@me=e-1 contains=sedTab,sedRegexpMeta keepend contained nextgroup=sedReplacement'.s:i
+    exe 'syn region sedReplacement'.s:i 'matchgroup=Special start=@'.s:delimiter.'\%(\\\\\|\\'.s:delimiter.'\)*@ skip=@[^\\'.s:delimiter.']\%(\\\\\)*\\'.s:delimiter.'@ end=@'.s:delimiter.'@ contains=sedTab,sedReplaceMeta keepend contained nextgroup=@sedFlags'
+  endif
+  let s:i = s:i + 1
+endwhile
+syn region sedAddress matchgroup=Special start=+\\@\%(\\@\)\=+ skip=+[^\\]\%(\\\\\)*\\@+ end=+@I\=+ contains=sedTab,sedRegexpMeta
+syn region sedRegexp64 matchgroup=Special start=+@\%(\\\\\|\\@\)*+ skip=+[^\\@]\%(\\\\\)*\\@+ end=+@+me=e-1 contains=sedTab,sedRegexpMeta keepend contained nextgroup=sedReplacement64
+syn region sedReplacement64 matchgroup=Special start=+@\%(\\\\\|\\@\)*+ skip=+[^\\@]\%(\\\\\)*\\@+ end=+@+ contains=sedTab,sedReplaceMeta keepend contained nextgroup=sedFlag
+
+" Since the syntax for the substitution command is very similar to the
+" syntax for the transform command, I use the same pattern matching
+" for both commands.  There is one problem -- the transform command
+" (y) does not allow any flags.  To save memory, I ignore this problem.
+syn match sedST	"[sy]" nextgroup=sedRegexp\d\+
+
+
+hi def link sedAddress		Macro
+hi def link sedACI		NONE
+hi def link sedBranch		Label
+hi def link sedComment		Comment
+hi def link sedDelete		Function
+hi def link sedError		Error
+hi def link sedFlag		Type
+hi def link sedFlagWrite	Constant
+hi def link sedFunction		Function
+hi def link sedLabel		Label
+hi def link sedLineCont		Special
+hi def link sedPutHoldspc	Function
+hi def link sedReplaceMeta	Special
+hi def link sedRegexpMeta	Special
+hi def link sedRW		Constant
+hi def link sedSemicolon	Special
+hi def link sedST		Function
+hi def link sedSpecial		Special
+hi def link sedTodo		Todo
+hi def link sedWhitespace	NONE
+if s:highlight_tabs
+  hi def link sedTab		Todo
+endif
+let s:i = char2nr(" ") " ASCII: 32, EBCDIC: 64
+while s:i <= s:last
+  exe "hi def link sedRegexp".s:i	"Macro"
+  exe "hi def link sedReplacement".s:i	"NONE"
+  let s:i = s:i + 1
+endwhile
+
+unlet s:i s:last s:delimiter s:metacharacters s:at
+unlet s:highlight_tabs
+
+let b:current_syntax = "sed"
+
+" vim: nowrap sw=2 sts=2 ts=8 noet: