Mercurial > vim
view runtime/syntax/markdown.vim @ 34074:1629cc65d78d v9.1.0006
patch 9.1.0006: is*() and to*() function may be unsafe
Commit: https://github.com/vim/vim/commit/184f71cc6868a240dc872ed2852542bbc1d43e28
Author: Keith Thompson <Keith.S.Thompson@gmail.com>
Date: Thu Jan 4 21:19:04 2024 +0100
patch 9.1.0006: is*() and to*() function may be unsafe
Problem: is*() and to*() function may be unsafe
Solution: Add SAFE_* macros and start using those instead
(Keith Thompson)
Use SAFE_() macros for is*() and to*() functions
The standard is*() and to*() functions declared in <ctype.h> have
undefined behavior for negative arguments other than EOF. If plain char
is signed, passing an unchecked value from argv for from user input
to one of these functions has undefined behavior.
Solution: Add SAFE_*() macros that cast the argument to unsigned char.
Most implementations behave sanely for negative arguments, and most
character values in practice are non-negative, but it's still best
to avoid undefined behavior.
The change from #13347 has been omitted, as this has already been
separately fixed in commit ac709e2fc0db6d31abb7da96f743c40956b60c3a
(v9.0.2054)
fixes: #13332
closes: #13347
Signed-off-by: Keith Thompson <Keith.S.Thompson@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 04 Jan 2024 21:30:04 +0100 |
parents | 3295247d97a5 |
children |
line wrap: on
line source
" Vim syntax file " Language: Markdown " Maintainer: Tim Pope <https://github.com/tpope/vim-markdown> " Filenames: *.markdown " Last Change: 2022 Oct 13 if exists("b:current_syntax") finish endif if !exists('main_syntax') let main_syntax = 'markdown' endif if has('folding') let s:foldmethod = &l:foldmethod let s:foldtext = &l:foldtext endif let s:iskeyword = &l:iskeyword runtime! syntax/html.vim unlet! b:current_syntax if !exists('g:markdown_fenced_languages') let g:markdown_fenced_languages = [] endif let s:done_include = {} for s:type in map(copy(g:markdown_fenced_languages),'matchstr(v:val,"[^=]*$")') if has_key(s:done_include, matchstr(s:type,'[^.]*')) continue endif if s:type =~ '\.' let b:{matchstr(s:type,'[^.]*')}_subtype = matchstr(s:type,'\.\zs.*') endif syn case match exe 'syn include @markdownHighlight_'.tr(s:type,'.','_').' syntax/'.matchstr(s:type,'[^.]*').'.vim' unlet! b:current_syntax let s:done_include[matchstr(s:type,'[^.]*')] = 1 endfor unlet! s:type unlet! s:done_include syn spell toplevel if exists('s:foldmethod') && s:foldmethod !=# &l:foldmethod let &l:foldmethod = s:foldmethod unlet s:foldmethod endif if exists('s:foldtext') && s:foldtext !=# &l:foldtext let &l:foldtext = s:foldtext unlet s:foldtext endif if s:iskeyword !=# &l:iskeyword let &l:iskeyword = s:iskeyword endif unlet s:iskeyword if !exists('g:markdown_minlines') let g:markdown_minlines = 50 endif execute 'syn sync minlines=' . g:markdown_minlines syn sync linebreaks=1 syn case ignore syn match markdownValid '[<>]\c[a-z/$!]\@!' transparent contains=NONE syn match markdownValid '&\%(#\=\w*;\)\@!' transparent contains=NONE syn match markdownLineStart "^[<@]\@!" nextgroup=@markdownBlock,htmlSpecialChar syn cluster markdownBlock contains=markdownH1,markdownH2,markdownH3,markdownH4,markdownH5,markdownH6,markdownBlockquote,markdownListMarker,markdownOrderedListMarker,markdownCodeBlock,markdownRule syn cluster markdownInline contains=markdownLineBreak,markdownLinkText,markdownItalic,markdownBold,markdownCode,markdownEscape,@htmlTop,markdownError,markdownValid syn match markdownH1 "^.\+\n=\+$" contained contains=@markdownInline,markdownHeadingRule,markdownAutomaticLink syn match markdownH2 "^.\+\n-\+$" contained contains=@markdownInline,markdownHeadingRule,markdownAutomaticLink syn match markdownHeadingRule "^[=-]\+$" contained syn region markdownH1 matchgroup=markdownH1Delimiter start=" \{,3}#\s" end="#*\s*$" keepend oneline contains=@markdownInline,markdownAutomaticLink contained syn region markdownH2 matchgroup=markdownH2Delimiter start=" \{,3}##\s" end="#*\s*$" keepend oneline contains=@markdownInline,markdownAutomaticLink contained syn region markdownH3 matchgroup=markdownH3Delimiter start=" \{,3}###\s" end="#*\s*$" keepend oneline contains=@markdownInline,markdownAutomaticLink contained syn region markdownH4 matchgroup=markdownH4Delimiter start=" \{,3}####\s" end="#*\s*$" keepend oneline contains=@markdownInline,markdownAutomaticLink contained syn region markdownH5 matchgroup=markdownH5Delimiter start=" \{,3}#####\s" end="#*\s*$" keepend oneline contains=@markdownInline,markdownAutomaticLink contained syn region markdownH6 matchgroup=markdownH6Delimiter start=" \{,3}######\s" end="#*\s*$" keepend oneline contains=@markdownInline,markdownAutomaticLink contained syn match markdownBlockquote ">\%(\s\|$\)" contained nextgroup=@markdownBlock syn region markdownCodeBlock start="^\n\( \{4,}\|\t\)" end="^\ze \{,3}\S.*$" keepend " TODO: real nesting syn match markdownListMarker "\%(\t\| \{0,4\}\)[-*+]\%(\s\+\S\)\@=" contained syn match markdownOrderedListMarker "\%(\t\| \{0,4}\)\<\d\+\.\%(\s\+\S\)\@=" contained syn match markdownRule "\* *\* *\*[ *]*$" contained syn match markdownRule "- *- *-[ -]*$" contained syn match markdownLineBreak " \{2,\}$" syn region markdownIdDeclaration matchgroup=markdownLinkDelimiter start="^ \{0,3\}!\=\[" end="\]:" oneline keepend nextgroup=markdownUrl skipwhite syn match markdownUrl "\S\+" nextgroup=markdownUrlTitle skipwhite contained syn region markdownUrl matchgroup=markdownUrlDelimiter start="<" end=">" oneline keepend nextgroup=markdownUrlTitle skipwhite contained syn region markdownUrlTitle matchgroup=markdownUrlTitleDelimiter start=+"+ end=+"+ keepend contained syn region markdownUrlTitle matchgroup=markdownUrlTitleDelimiter start=+'+ end=+'+ keepend contained syn region markdownUrlTitle matchgroup=markdownUrlTitleDelimiter start=+(+ end=+)+ keepend contained syn region markdownLinkText matchgroup=markdownLinkTextDelimiter start="!\=\[\%(\_[^][]*\%(\[\_[^][]*\]\_[^][]*\)*]\%( \=[[(]\)\)\@=" end="\]\%( \=[[(]\)\@=" nextgroup=markdownLink,markdownId skipwhite contains=@markdownInline,markdownLineStart syn region markdownLink matchgroup=markdownLinkDelimiter start="(" end=")" contains=markdownUrl keepend contained syn region markdownId matchgroup=markdownIdDelimiter start="\[" end="\]" keepend contained syn region markdownAutomaticLink matchgroup=markdownUrlDelimiter start="<\%(\w\+:\|[[:alnum:]_+-]\+@\)\@=" end=">" keepend oneline let s:concealends = '' if has('conceal') && get(g:, 'markdown_syntax_conceal', 1) == 1 let s:concealends = ' concealends' endif exe 'syn region markdownItalic matchgroup=markdownItalicDelimiter start="\*\S\@=" end="\S\@<=\*\|^$" skip="\\\*" contains=markdownLineStart,@Spell' . s:concealends exe 'syn region markdownItalic matchgroup=markdownItalicDelimiter start="\w\@<!_\S\@=" end="\S\@<=_\w\@!\|^$" skip="\\_" contains=markdownLineStart,@Spell' . s:concealends exe 'syn region markdownBold matchgroup=markdownBoldDelimiter start="\*\*\S\@=" end="\S\@<=\*\*\|^$" skip="\\\*" contains=markdownLineStart,markdownItalic,@Spell' . s:concealends exe 'syn region markdownBold matchgroup=markdownBoldDelimiter start="\w\@<!__\S\@=" end="\S\@<=__\w\@!\|^$" skip="\\_" contains=markdownLineStart,markdownItalic,@Spell' . s:concealends exe 'syn region markdownBoldItalic matchgroup=markdownBoldItalicDelimiter start="\*\*\*\S\@=" end="\S\@<=\*\*\*\|^$" skip="\\\*" contains=markdownLineStart,@Spell' . s:concealends exe 'syn region markdownBoldItalic matchgroup=markdownBoldItalicDelimiter start="\w\@<!___\S\@=" end="\S\@<=___\w\@!\|^$" skip="\\_" contains=markdownLineStart,@Spell' . s:concealends exe 'syn region markdownStrike matchgroup=markdownStrikeDelimiter start="\~\~\S\@=" end="\S\@<=\~\~\|^$" contains=markdownLineStart,@Spell' . s:concealends syn region markdownCode matchgroup=markdownCodeDelimiter start="`" end="`" keepend contains=markdownLineStart syn region markdownCode matchgroup=markdownCodeDelimiter start="`` \=" end=" \=``" keepend contains=markdownLineStart syn region markdownCodeBlock matchgroup=markdownCodeDelimiter start="^\s*\z(`\{3,\}\).*$" end="^\s*\z1\ze\s*$" keepend syn region markdownCodeBlock matchgroup=markdownCodeDelimiter start="^\s*\z(\~\{3,\}\).*$" end="^\s*\z1\ze\s*$" keepend syn match markdownFootnote "\[^[^\]]\+\]" syn match markdownFootnoteDefinition "^\[^[^\]]\+\]:" let s:done_include = {} for s:type in g:markdown_fenced_languages if has_key(s:done_include, matchstr(s:type,'[^.]*')) continue endif exe 'syn region markdownHighlight_'.substitute(matchstr(s:type,'[^=]*$'),'\..*','','').' matchgroup=markdownCodeDelimiter start="^\s*\z(`\{3,\}\)\s*\%({.\{-}\.\)\='.matchstr(s:type,'[^=]*').'}\=\S\@!.*$" end="^\s*\z1\ze\s*$" keepend contains=@markdownHighlight_'.tr(matchstr(s:type,'[^=]*$'),'.','_') . s:concealends exe 'syn region markdownHighlight_'.substitute(matchstr(s:type,'[^=]*$'),'\..*','','').' matchgroup=markdownCodeDelimiter start="^\s*\z(\~\{3,\}\)\s*\%({.\{-}\.\)\='.matchstr(s:type,'[^=]*').'}\=\S\@!.*$" end="^\s*\z1\ze\s*$" keepend contains=@markdownHighlight_'.tr(matchstr(s:type,'[^=]*$'),'.','_') . s:concealends let s:done_include[matchstr(s:type,'[^.]*')] = 1 endfor unlet! s:type unlet! s:done_include if get(b:, 'markdown_yaml_head', get(g:, 'markdown_yaml_head', main_syntax ==# 'markdown')) syn include @markdownYamlTop syntax/yaml.vim unlet! b:current_syntax syn region markdownYamlHead start="\%^---$" end="^\%(---\|\.\.\.\)\s*$" keepend contains=@markdownYamlTop,@Spell endif syn match markdownEscape "\\[][\\`*_{}()<>#+.!-]" syn match markdownError "\w\@<=_\w\@=" hi def link markdownH1 htmlH1 hi def link markdownH2 htmlH2 hi def link markdownH3 htmlH3 hi def link markdownH4 htmlH4 hi def link markdownH5 htmlH5 hi def link markdownH6 htmlH6 hi def link markdownHeadingRule markdownRule hi def link markdownH1Delimiter markdownHeadingDelimiter hi def link markdownH2Delimiter markdownHeadingDelimiter hi def link markdownH3Delimiter markdownHeadingDelimiter hi def link markdownH4Delimiter markdownHeadingDelimiter hi def link markdownH5Delimiter markdownHeadingDelimiter hi def link markdownH6Delimiter markdownHeadingDelimiter hi def link markdownHeadingDelimiter Delimiter hi def link markdownOrderedListMarker markdownListMarker hi def link markdownListMarker htmlTagName hi def link markdownBlockquote Comment hi def link markdownRule PreProc hi def link markdownFootnote Typedef hi def link markdownFootnoteDefinition Typedef hi def link markdownLinkText htmlLink hi def link markdownIdDeclaration Typedef hi def link markdownId Type hi def link markdownAutomaticLink markdownUrl hi def link markdownUrl Float hi def link markdownUrlTitle String hi def link markdownIdDelimiter markdownLinkDelimiter hi def link markdownUrlDelimiter htmlTag hi def link markdownUrlTitleDelimiter Delimiter hi def link markdownItalic htmlItalic hi def link markdownItalicDelimiter markdownItalic hi def link markdownBold htmlBold hi def link markdownBoldDelimiter markdownBold hi def link markdownBoldItalic htmlBoldItalic hi def link markdownBoldItalicDelimiter markdownBoldItalic hi def link markdownStrike htmlStrike hi def link markdownStrikeDelimiter markdownStrike hi def link markdownCodeDelimiter Delimiter hi def link markdownEscape Special hi def link markdownError Error let b:current_syntax = "markdown" if main_syntax ==# 'markdown' unlet main_syntax endif " vim:set sw=2: