Mercurial > vim
view runtime/syntax/sed.vim @ 30487:79e2d9b7780c v9.0.0579
patch 9.0.0579: using freed memory when 'tagfunc' wipes out buffer
Commit: https://github.com/vim/vim/commit/0ff01835a40f549c5c4a550502f62a2ac9ac447c
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Sep 24 19:20:30 2022 +0100
patch 9.0.0579: using freed memory when 'tagfunc' wipes out buffer
Problem: Using freed memory when 'tagfunc' wipes out buffer that holds
'complete'.
Solution: Make a copy of the option. Make sure cursor position is valid.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sat, 24 Sep 2022 20:30:03 +0200 |
| parents | 46763b01cd9a |
| children | 3295247d97a5 |
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" Vim syntax file " Language: sed " Maintainer: Haakon Riiser <hakonrk@fys.uio.no> " URL: http://folk.uio.no/hakonrk/vim/syntax/sed.vim " Last Change: 2010 May 29 " quit when a syntax file was already loaded if exists("b:current_syntax") finish endif 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 sedComment "^\s*#.*$" syn match sedFunction "[dDgGhHlnNpPqQx=]\s*\($\|;\)" contains=sedSemicolon,sedWhitespace syn match sedLabel ":[^;]*" syn match sedLineCont "^\(\\\\\)*\\$" contained syn match sedLineCont "[^\\]\(\\\\\)*\\$"ms=e contained syn match sedSpecial "[{},!]" if exists("highlight_sedtabs") 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 __at = char2nr("@") let __sed_i = char2nr(" ") " ASCII: 32, EBCDIC: 64 if has("ebcdic") let __sed_last = 255 else let __sed_last = 126 endif let __sed_metacharacters = '$*.\^[~' while __sed_i <= __sed_last let __sed_delimiter = escape(nr2char(__sed_i), __sed_metacharacters) if __sed_i != __at exe 'syn region sedAddress matchgroup=Special start=@\\'.__sed_delimiter.'\(\\'.__sed_delimiter.'\)\=@ skip=@[^\\]\(\\\\\)*\\'.__sed_delimiter.'@ end=@'.__sed_delimiter.'I\=@ contains=sedTab' exe 'syn region sedRegexp'.__sed_i 'matchgroup=Special start=@'.__sed_delimiter.'\(\\\\\|\\'.__sed_delimiter.'\)*@ skip=@[^\\'.__sed_delimiter.']\(\\\\\)*\\'.__sed_delimiter.'@ end=@'.__sed_delimiter.'@me=e-1 contains=sedTab,sedRegexpMeta keepend contained nextgroup=sedReplacement'.__sed_i exe 'syn region sedReplacement'.__sed_i 'matchgroup=Special start=@'.__sed_delimiter.'\(\\\\\|\\'.__sed_delimiter.'\)*@ skip=@[^\\'.__sed_delimiter.']\(\\\\\)*\\'.__sed_delimiter.'@ end=@'.__sed_delimiter.'@ contains=sedTab,sedReplaceMeta keepend contained nextgroup=sedFlag' endif let __sed_i = __sed_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 substituion 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 sedWhitespace NONE if exists("highlight_sedtabs") hi def link sedTab Todo endif let __sed_i = char2nr(" ") " ASCII: 32, EBCDIC: 64 while __sed_i <= __sed_last exe "hi def link sedRegexp".__sed_i "Macro" exe "hi def link sedReplacement".__sed_i "NONE" let __sed_i = __sed_i + 1 endwhile unlet __sed_i __sed_last __sed_delimiter __sed_metacharacters let b:current_syntax = "sed" " vim: sts=4 sw=4 ts=8