runtime(vim): Update base-syntax, allow whitespace before :substitute pattern
Allow whitespace between the :substitute command and its pattern
argument. Although unusual, it is supported and there are examples in
the wild.
Match Vi compatible :substitute commands like :s\/{string}/. See :help
E1270.
fixes: #14920
closes: #14923
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
index 6ff9677..3892cf8 100644
--- a/runtime/syntax/vim.vim
+++ b/runtime/syntax/vim.vim
@@ -3,7 +3,7 @@
" Maintainer: Hirohito Higashi <h.east.727 ATMARK gmail.com>
" Doug Kearns <dougkearns@gmail.com>
" URL: https://github.com/vim-jp/syntax-vim-ex
-" Last Change: 2024 Jun 03
+" Last Change: 2024 Jun 05
" Former Maintainer: Charles E. Campbell
" DO NOT CHANGE DIRECTLY.
@@ -477,12 +477,10 @@
syn cluster vimSubstList contains=vimPatSep,vimPatRegion,vimPatSepErr,vimSubstTwoBS,vimSubstRange,vimNotation
syn cluster vimSubstRepList contains=vimSubstSubstr,vimSubstTwoBS,vimNotation
syn cluster vimSubstList add=vimCollection
-syn match vimSubst "^\s*\%(s\%[ubstitute]\|sm\%[agic]\|sno\%[magic]\)\>[\"#|]\@!" nextgroup=vimSubstPat
-syn match vimSubst "^\s*\%(s\%[ubstitute]\|sm\%[agic]\|sno\%[magic]\)_\@=" nextgroup=vimSubstPat
-syn match vimSubst "^\s*\%(s\%[ubstitute]\|sm\%[agic]\>\|sno\%[magic]\)\ze#.\{-}#.\{-}#" nextgroup=vimSubstPat
-syn match vimSubst1 contained "\%(s\%[ubstitute]\|sm\%[agic]\>\|sno\%[magic]\)\>[\"#|]\@!" nextgroup=vimSubstPat
-syn match vimSubst1 contained "\%(s\%[ubstitute]\|sm\%[agic]\>\|sno\%[magic]\)_\@=" nextgroup=vimSubstPat
-syn match vimSubst1 contained "\%(s\%[ubstitute]\|sm\%[agic]\>\|sno\%[magic]\)\ze#.\{-}#.\{-}#" nextgroup=vimSubstPat
+syn match vimSubst "^\s*\%(s\%[ubstitute]\|sm\%[agic]\|sno\%[magic]\)\>" skipwhite nextgroup=vimSubstPat
+syn match vimSubst "^\s*\%(s\%[ubstitute]\|sm\%[agic]\|sno\%[magic]\)[_#]\@=" skipwhite nextgroup=vimSubstPat
+syn match vimSubst1 contained "\%(s\%[ubstitute]\|sm\%[agic]\>\|sno\%[magic]\)\>" skipwhite nextgroup=vimSubstPat
+syn match vimSubst1 contained "\%(s\%[ubstitute]\|sm\%[agic]\>\|sno\%[magic]\)[_#]\@=" skipwhite nextgroup=vimSubstPat
" TODO: Vim9 illegal separators for abbreviated :s form are [-.:], :su\%[...] required
" : # is allowed but "not recommended" (see :h pattern-delimiter)
syn region vimSubstPat contained matchgroup=vimSubstDelim start="\z([!#$%&'()*+,-./:;<=>?@[\]^_`{}~]\)"rs=s+1 skip="\\\\\|\\\z1" end="\z1"re=e-1,me=e-1 contains=@vimSubstList nextgroup=vimSubstRep4 oneline
@@ -495,6 +493,10 @@
syn match vimSubstFlagErr contained "[^< \t\r|]\+" contains=vimSubstFlags
syn match vimSubstFlags contained "[&cegiIlnpr#]\+"
+" Vi compatibility
+syn match vimSubstDelim contained "\\"
+syn match vimSubstPat contained "\\\ze[/?&]" contains=vimSubstDelim nextgroup=vimSubstRep4
+
" 'String': {{{2
syn match vimString "[^(,]'[^']\{-}\zs'"