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-rw-r--r--runtime/syntax/vim.vim13
1 files changed, 10 insertions, 3 deletions
diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
index 8dd72d76e5..57516dfa61 100644
--- a/runtime/syntax/vim.vim
+++ b/runtime/syntax/vim.vim
@@ -433,11 +433,12 @@ syn match vimEscape contained "\\\o\{1,3}\|\\[xX]\x\{1,2}\|\\u\x\{1,4}\|\\U\x\{1
syn match vimEscape contained "\\<" contains=vimNotation
syn match vimEscape contained "\\<\*[^>]*>\=>"
-syn region vimString oneline start=+$'+ skip=+''+ end=+'+ contains=vimStringInterpolationBrace,vimStringInterpolationExpr
-syn region vimString oneline start=+$"+ end=+"+ contains=@vimStringGroup,vimStringInterpolationBrace,vimStringInterpolationExpr
+syn region vimString oneline start=+$'+ skip=+''+ end=+'+ contains=@vimStringInterpolation
+syn region vimString oneline start=+$"+ end=+"+ contains=@vimStringGroup,@vimStringInterpolation
syn region vimStringInterpolationExpr oneline contained matchgroup=vimSep start=+{+ end=+}+ contains=@vimExprList
syn match vimStringInterpolationBrace contained "{{"
syn match vimStringInterpolationBrace contained "}}"
+syn cluster vimStringInterpolation contains=vimStringInterpolationExpr,vimStringInterpolationBrace
" Substitutions: {{{2
" =============
@@ -517,7 +518,13 @@ VimL syn keyword vimUnlet unl[et] skipwhite nextgroup=vimUnletBang,vimUnletVars
syn match vimUnletBang contained "!" skipwhite nextgroup=vimUnletVars
syn region vimUnletVars contained start="$\I\|\h" skip="\n\s*\\" end="$" end="|" contains=vimVar,vimEnvvar,vimContinue,vimString,vimNumber
-VimFoldh syn region vimLetHereDoc matchgroup=vimLetHereDocStart start='=<<\s*\%(trim\s\+\%(eval\s\+\)\=\|eval\s\+\%(trim\s\+\)\=\)\=\z(\L\S*\)' matchgroup=vimLetHereDocStop end='^\s*\z1\s*$' extend
+" Note: This incorrectly matches end markers with leading whitespace even if
+" "trim" was not specified. Matching :let indent for "trim" indented
+" end markers would require a contained :let that cannot be restricted
+" to the start pattern. A common internal testing use of heredocs is to
+" specify code blocks where :let commonly appears in the heredoc text.
+VimFoldh syn region vimLetHereDoc matchgroup=vimLetHereDocStart start='=<<\s*\%(trim\s\+\)\=\z(\L\S*\)' matchgroup=vimLetHereDocStop end='^\s*\z1$' extend
+VimFoldh syn region vimLetHereDoc matchgroup=vimLetHereDocStart start='=<<\s*\%(\%(trim\s\+\)\=eval\s\+\|eval\s\+\%(trim\s\+\)\=\)\z(\L\S*\)' matchgroup=vimLetHereDocStop end='^\s*\z1$' contains=@vimStringInterpolation extend
Vim9 syn keyword vim9Const const skipwhite nextgroup=vim9Variable,vim9VariableList
Vim9 syn keyword vim9Final final skipwhite nextgroup=vim9Variable,vim9VariableList