vimwiki/syntax/vimwiki.vim

" vim:tabstop=2:shiftwidth=2:expandtab:textwidth=99
" Vimwiki syntax file
" Home: https://github.com/vimwiki/vimwiki/


" Quit if syntax file is already loaded
if v:version < 600
  syntax clear
elseif exists("b:current_syntax")
  finish
endif


let s:current_syntax = vimwiki#vars#get_wikilocal('syntax')


call vimwiki#vars#populate_syntax_vars(s:current_syntax)


" LINKS: highlighting is complicated due to "nonexistent" links feature
function! s:add_target_syntax_ON(target, type)
  let prefix0 = 'syntax match '.a:type.' `'
  let suffix0 = '` display contains=@NoSpell,VimwikiLinkRest,'.a:type.'Char'
  let prefix1 = 'syntax match '.a:type.'T `'
  let suffix1 = '` display contained'
  execute prefix0. a:target. suffix0
  execute prefix1. a:target. suffix1
endfunction


function! s:add_target_syntax_OFF(target)
  let prefix0 = 'syntax match VimwikiNoExistsLink `'
  let suffix0 = '` display contains=@NoSpell,VimwikiLinkRest,VimwikiLinkChar'
  let prefix1 = 'syntax match VimwikiNoExistsLinkT `'
  let suffix1 = '` display contained'
  execute prefix0. a:target. suffix0
  execute prefix1. a:target. suffix1
endfunction


function! s:highlight_existing_links()
  " Wikilink
  " Conditional highlighting that depends on the existence of a wiki file or
  "   directory is only available for *schemeless* wiki links
  " Links are set up upon BufEnter (see plugin/...)
  let safe_links = '\%('.vimwiki#base#file_pattern(
        \ vimwiki#vars#get_bufferlocal('existing_wikifiles')) . '\%(#[^|]*\)\?\|#[^|]*\)'
  " Wikilink Dirs set up upon BufEnter (see plugin/...)
  let safe_dirs = vimwiki#base#file_pattern(vimwiki#vars#get_bufferlocal('existing_wikidirs'))

  " match [[URL]]
  let target = vimwiki#base#apply_template(
        \ vimwiki#u#escape(vimwiki#vars#get_global('WikiLinkTemplate1')),
        \ safe_links, vimwiki#vars#get_global('rxWikiLinkDescr'), '')
  call s:add_target_syntax_ON(target, 'VimwikiLink')
  " match [[URL|DESCRIPTION]]
  let target = vimwiki#base#apply_template(
        \ vimwiki#u#escape(vimwiki#vars#get_global('WikiLinkTemplate2')),
        \ safe_links, vimwiki#vars#get_global('rxWikiLinkDescr'), '')
  call s:add_target_syntax_ON(target, 'VimwikiLink')

  " match {{URL}}
  let target = vimwiki#base#apply_template(
        \ vimwiki#u#escape(vimwiki#vars#get_global('WikiInclTemplate1')),
        \ safe_links, vimwiki#vars#get_global('rxWikiInclArgs'), '')
  call s:add_target_syntax_ON(target, 'VimwikiLink')
  " match {{URL|...}}
  let target = vimwiki#base#apply_template(
        \ vimwiki#u#escape(vimwiki#vars#get_global('WikiInclTemplate2')),
        \ safe_links, vimwiki#vars#get_global('rxWikiInclArgs'), '')
  call s:add_target_syntax_ON(target, 'VimwikiLink')
  " match [[DIRURL]]
  let target = vimwiki#base#apply_template(
        \ vimwiki#u#escape(vimwiki#vars#get_global('WikiLinkTemplate1')),
        \ safe_dirs, vimwiki#vars#get_global('rxWikiLinkDescr'), '')
  call s:add_target_syntax_ON(target, 'VimwikiLink')
  " match [[DIRURL|DESCRIPTION]]
  let target = vimwiki#base#apply_template(
        \ vimwiki#u#escape(vimwiki#vars#get_global('WikiLinkTemplate2')),
        \ safe_dirs, vimwiki#vars#get_global('rxWikiLinkDescr'), '')
  call s:add_target_syntax_ON(target, 'VimwikiLink')
endfunction


" use max highlighting - could be quite slow if there are too many wikifiles
if vimwiki#vars#get_wikilocal('maxhi')
  " WikiLink
  call s:add_target_syntax_OFF(vimwiki#vars#get_syntaxlocal('rxWikiLink'))
  " WikiIncl
  call s:add_target_syntax_OFF(vimwiki#vars#get_global('rxWikiIncl'))

  " Subsequently, links verified on vimwiki's path are highlighted as existing
  call s:highlight_existing_links()
else
  " Wikilink
  call s:add_target_syntax_ON(vimwiki#vars#get_syntaxlocal('rxWikiLink'), 'VimwikiLink')
  " WikiIncl
  call s:add_target_syntax_ON(vimwiki#vars#get_global('rxWikiIncl'), 'VimwikiLink')
endif


" Weblink
call s:add_target_syntax_ON(vimwiki#vars#get_syntaxlocal('rxWeblink'), 'VimwikiLink')


" WikiLink
" All remaining schemes are highlighted automatically
let s:rxSchemes = '\%('.
      \ vimwiki#vars#get_global('schemes') . '\|'.
      \ vimwiki#vars#get_global('web_schemes1').
      \ '\):'

" a) match [[nonwiki-scheme-URL]]
let s:target = vimwiki#base#apply_template(
      \ vimwiki#u#escape(vimwiki#vars#get_global('WikiLinkTemplate1')),
      \ s:rxSchemes.vimwiki#vars#get_global('rxWikiLinkUrl'),
      \ vimwiki#vars#get_global('rxWikiLinkDescr'), '')
call s:add_target_syntax_ON(s:target, 'VimwikiLink')
" b) match [[nonwiki-scheme-URL|DESCRIPTION]]
let s:target = vimwiki#base#apply_template(
      \ vimwiki#u#escape(vimwiki#vars#get_global('WikiLinkTemplate2')),
      \ s:rxSchemes.vimwiki#vars#get_global('rxWikiLinkUrl'),
      \ vimwiki#vars#get_global('rxWikiLinkDescr'), '')
call s:add_target_syntax_ON(s:target, 'VimwikiLink')

" a) match {{nonwiki-scheme-URL}}
let s:target = vimwiki#base#apply_template(
      \ vimwiki#u#escape(vimwiki#vars#get_global('WikiInclTemplate1')),
      \ s:rxSchemes.vimwiki#vars#get_global('rxWikiInclUrl'),
      \ vimwiki#vars#get_global('rxWikiInclArgs'), '')
call s:add_target_syntax_ON(s:target, 'VimwikiLink')
" b) match {{nonwiki-scheme-URL}[{...}]}
let s:target = vimwiki#base#apply_template(
      \ vimwiki#u#escape(vimwiki#vars#get_global('WikiInclTemplate2')),
      \ s:rxSchemes.vimwiki#vars#get_global('rxWikiInclUrl'),
      \ vimwiki#vars#get_global('rxWikiInclArgs'), '')
call s:add_target_syntax_ON(s:target, 'VimwikiLink')



" Header levels, 1-6
for s:i in range(1,6)
  execute 'syntax match VimwikiHeader'.s:i
      \ . ' /'.vimwiki#vars#get_syntaxlocal('rxH'.s:i, s:current_syntax).
      \ '/ contains=VimwikiTodo,VimwikiHeaderChar,VimwikiNoExistsLink,VimwikiCode,'.
      \ 'VimwikiLink,@Spell'
  execute 'syntax region VimwikiH'.s:i.'Folding start=/'.
        \ vimwiki#vars#get_syntaxlocal('rxH'.s:i.'_Start', s:current_syntax).'/ end=/'.
        \ vimwiki#vars#get_syntaxlocal('rxH'.s:i.'_End', s:current_syntax).
        \ '/me=s-1 transparent fold'
endfor



" possibly concealed chars
let s:conceal = exists("+conceallevel") ? ' conceal' : ''

if vimwiki#vars#get_global('conceal_onechar_markers')
  execute 'syn match VimwikiEqInChar contained /'.
        \ vimwiki#vars#get_syntaxlocal('char_eqin').'/'.s:conceal
  execute 'syn match VimwikiBoldChar contained /'.
        \ vimwiki#vars#get_syntaxlocal('char_bold').'/'.s:conceal
  execute 'syn match VimwikiItalicChar contained /'.
        \ vimwiki#vars#get_syntaxlocal('char_italic').'/'.s:conceal
  execute 'syn match VimwikiBoldItalicChar contained /'.
        \ vimwiki#vars#get_syntaxlocal('char_bolditalic').'/'.s:conceal
  execute 'syn match VimwikiItalicBoldChar contained /'.
        \ vimwiki#vars#get_syntaxlocal('char_italicbold').'/'.s:conceal
  execute 'syn match VimwikiCodeChar contained /'.
        \ vimwiki#vars#get_syntaxlocal('char_code').'/'.s:conceal
  execute 'syn match VimwikiDelTextChar contained /'.
        \ vimwiki#vars#get_syntaxlocal('char_deltext').'/'.s:conceal
  execute 'syn match VimwikiSuperScript contained /'.
        \ vimwiki#vars#get_syntaxlocal('char_superscript').'/'.s:conceal
  execute 'syn match VimwikiSubScript contained /'.
        \ vimwiki#vars#get_syntaxlocal('char_subscript').'/'.s:conceal
endif


let s:options = ' contained transparent contains=NONE'
if exists("+conceallevel")
  let s:options .= s:conceal
endif

" A shortener for long URLs: LinkRest (a middle part of the URL) is concealed
" VimwikiLinkRest group is left undefined if link shortening is not desired
if exists("+conceallevel") && vimwiki#vars#get_global('url_maxsave') > 0
  execute 'syn match VimwikiLinkRest `\%(///\=[^/ \t]\+/\)\zs\S\+\ze'
        \.'\%([/#?]\w\|\S\{'.vimwiki#vars#get_global('url_maxsave').'}\)`'.' cchar=~'.s:options
endif

" VimwikiLinkChar is for syntax markers (and also URL when a description
" is present) and may be concealed

" conceal wikilinks
execute 'syn match VimwikiLinkChar /'.vimwiki#vars#get_global('rx_wikilink_prefix').'/'.s:options
execute 'syn match VimwikiLinkChar /'.vimwiki#vars#get_global('rx_wikilink_suffix').'/'.s:options
execute 'syn match VimwikiLinkChar /'.vimwiki#vars#get_global('rx_wikilink_prefix1').'/'.s:options
execute 'syn match VimwikiLinkChar /'.vimwiki#vars#get_global('rx_wikilink_suffix1').'/'.s:options

" conceal wikiincls
execute 'syn match VimwikiLinkChar /'.vimwiki#vars#get_global('rxWikiInclPrefix').'/'.s:options
execute 'syn match VimwikiLinkChar /'.vimwiki#vars#get_global('rxWikiInclSuffix').'/'.s:options
execute 'syn match VimwikiLinkChar /'.vimwiki#vars#get_global('rxWikiInclPrefix1').'/'.s:options
execute 'syn match VimwikiLinkChar /'.vimwiki#vars#get_global('rxWikiInclSuffix1').'/'.s:options


" non concealed chars
execute 'syn match VimwikiHeaderChar contained /\%(^\s*'.
      \ vimwiki#vars#get_syntaxlocal('rxH').'\+\)\|\%('.vimwiki#vars#get_syntaxlocal('rxH').
      \ '\+\s*$\)/'
execute 'syn match VimwikiEqInCharT contained /'
      \ .vimwiki#vars#get_syntaxlocal('char_eqin').'/'
execute 'syn match VimwikiBoldCharT contained /'
      \ .vimwiki#vars#get_syntaxlocal('char_bold').'/'
execute 'syn match VimwikiItalicCharT contained /'
      \ .vimwiki#vars#get_syntaxlocal('char_italic').'/'
execute 'syn match VimwikiBoldItalicCharT contained /'
      \ .vimwiki#vars#get_syntaxlocal('char_bolditalic').'/'
execute 'syn match VimwikiItalicBoldCharT contained /'
      \ .vimwiki#vars#get_syntaxlocal('char_italicbold').'/'
execute 'syn match VimwikiCodeCharT contained /'
      \ .vimwiki#vars#get_syntaxlocal('char_code').'/'
execute 'syn match VimwikiDelTextCharT contained /'
      \ .vimwiki#vars#get_syntaxlocal('char_deltext').'/'
execute 'syn match VimwikiSuperScriptT contained /'
      \ .vimwiki#vars#get_syntaxlocal('char_superscript').'/'
execute 'syn match VimwikiSubScriptT contained /'
      \ .vimwiki#vars#get_syntaxlocal('char_subscript').'/'


execute 'syntax match VimwikiTodo /'. vimwiki#vars#get_global('rxTodo') .'/'



" Tables
syntax match VimwikiTableRow /^\s*|.\+|\s*$/ 
      \ transparent contains=VimwikiCellSeparator,
                           \ VimwikiLinkT,
                           \ VimwikiNoExistsLinkT,
                           \ VimwikiTodo,
                           \ VimwikiBoldT,
                           \ VimwikiItalicT,
                           \ VimwikiBoldItalicT,
                           \ VimwikiItalicBoldT,
                           \ VimwikiDelTextT,
                           \ VimwikiSuperScriptT,
                           \ VimwikiSubScriptT,
                           \ VimwikiCodeT,
                           \ VimwikiEqInT,
                           \ @Spell
syntax match VimwikiCellSeparator 
      \ /\%(|\)\|\%(-\@<=+\-\@=\)\|\%([|+]\@<=-\+\)/ contained


" Lists
execute 'syntax match VimwikiList /'.vimwiki#vars#get_syntaxlocal('rxListItemWithoutCB').'/'
execute 'syntax match VimwikiList /'.vimwiki#vars#get_syntaxlocal('rxListDefine').'/'
execute 'syntax match VimwikiListTodo /'.vimwiki#vars#get_syntaxlocal('rxListItem').'/'

if vimwiki#vars#get_global('hl_cb_checked') == 1
  execute 'syntax match VimwikiCheckBoxDone /'.vimwiki#vars#get_syntaxlocal('rxListItemWithoutCB')
        \ . '\s*\[['.vimwiki#vars#get_syntaxlocal('listsyms_list')[-1]
        \ . vimwiki#vars#get_global('listsym_rejected')
        \ . ']\]\s.*$/ contains=VimwikiNoExistsLink,VimwikiLink,@Spell'
elseif vimwiki#vars#get_global('hl_cb_checked') == 2
  execute 'syntax match VimwikiCheckBoxDone /'
        \ . vimwiki#vars#get_syntaxlocal('rxListItemAndChildren')
        \ .'/ contains=VimwikiNoExistsLink,VimwikiLink,@Spell'
endif


execute 'syntax match VimwikiEqIn /'.vimwiki#vars#get_syntaxlocal('rxEqIn').
      \ '/ contains=VimwikiEqInChar'
execute 'syntax match VimwikiEqInT /'.vimwiki#vars#get_syntaxlocal('rxEqIn').
      \ '/ contained contains=VimwikiEqInCharT'

execute 'syntax match VimwikiBold /'.vimwiki#vars#get_syntaxlocal('rxBold').
      \ '/ contains=VimwikiBoldChar,@Spell'
execute 'syntax match VimwikiBoldT /'.vimwiki#vars#get_syntaxlocal('rxBold').
      \ '/ contained contains=VimwikiBoldCharT,@Spell'

execute 'syntax match VimwikiItalic /'.vimwiki#vars#get_syntaxlocal('rxItalic').
      \ '/ contains=VimwikiItalicChar,@Spell'
execute 'syntax match VimwikiItalicT /'.vimwiki#vars#get_syntaxlocal('rxItalic').
      \ '/ contained contains=VimwikiItalicCharT,@Spell'

execute 'syntax match VimwikiBoldItalic /'.vimwiki#vars#get_syntaxlocal('rxBoldItalic').
      \ '/ contains=VimwikiBoldItalicChar,VimwikiItalicBoldChar,@Spell'
execute 'syntax match VimwikiBoldItalicT /'.vimwiki#vars#get_syntaxlocal('rxBoldItalic').
      \ '/ contained contains=VimwikiBoldItalicChatT,VimwikiItalicBoldCharT,@Spell'

execute 'syntax match VimwikiItalicBold /'.vimwiki#vars#get_syntaxlocal('rxItalicBold').
      \ '/ contains=VimwikiBoldItalicChar,VimwikiItalicBoldChar,@Spell'
execute 'syntax match VimwikiItalicBoldT /'.vimwiki#vars#get_syntaxlocal('rxItalicBold').
      \ '/ contained contains=VimwikiBoldItalicCharT,VimsikiItalicBoldCharT,@Spell'

execute 'syntax match VimwikiDelText /'.vimwiki#vars#get_syntaxlocal('rxDelText').
      \ '/ contains=VimwikiDelTextChar,@Spell'
execute 'syntax match VimwikiDelTextT /'.vimwiki#vars#get_syntaxlocal('rxDelText').
      \ '/ contained contains=VimwikiDelTextCharT,@Spell'

execute 'syntax match VimwikiSuperScript /'.vimwiki#vars#get_syntaxlocal('rxSuperScript').
      \ '/ contains=VimwikiSuperScriptChar,@Spell'
execute 'syntax match VimwikiSuperScriptT /'.vimwiki#vars#get_syntaxlocal('rxSuperScript').
      \ '/ contained contains=VimwikiSuperScriptCharT,@Spell'

execute 'syntax match VimwikiSubScript /'.vimwiki#vars#get_syntaxlocal('rxSubScript').
      \ '/ contains=VimwikiSubScriptChar,@Spell'
execute 'syntax match VimwikiSubScriptT /'.vimwiki#vars#get_syntaxlocal('rxSubScript').
      \ '/ contained contains=VimwikiSubScriptCharT,@Spell'

execute 'syntax match VimwikiCode /'.vimwiki#vars#get_syntaxlocal('rxCode').
      \ '/ contains=VimwikiCodeChar'
execute 'syntax match VimwikiCodeT /'.vimwiki#vars#get_syntaxlocal('rxCode').
      \ '/ contained contains=VimwikiCodeCharT'


" <hr> horizontal rule
execute 'syntax match VimwikiHR /'.vimwiki#vars#get_syntaxlocal('rxHR').'/'

let concealpre = vimwiki#vars#get_global('conceal_pre') ? ' concealends' : ''
execute 'syntax region VimwikiPre matchgroup=VimwikiPreDelim start=/'.vimwiki#vars#get_syntaxlocal('rxPreStart').
      \ '/ end=/'.vimwiki#vars#get_syntaxlocal('rxPreEnd').'/ contains=@Spell'.concealpre

execute 'syntax region VimwikiMath start=/'.vimwiki#vars#get_syntaxlocal('rxMathStart').
      \ '/ end=/'.vimwiki#vars#get_syntaxlocal('rxMathEnd').'/ contains=@Spell'


" placeholders
syntax match VimwikiPlaceholder /^\s*%nohtml\s*$/
syntax match VimwikiPlaceholder
      \ /^\s*%title\ze\%(\s.*\)\?$/ nextgroup=VimwikiPlaceholderParam skipwhite
syntax match VimwikiPlaceholder
      \ /^\s*%date\ze\%(\s.*\)\?$/ nextgroup=VimwikiPlaceholderParam skipwhite
syntax match VimwikiPlaceholder
      \ /^\s*%template\ze\%(\s.*\)\?$/ nextgroup=VimwikiPlaceholderParam skipwhite
syntax match VimwikiPlaceholderParam /.*/ contained


" html tags
if vimwiki#vars#get_global('valid_html_tags') != ''
  let s:html_tags = join(split(vimwiki#vars#get_global('valid_html_tags'), '\s*,\s*'), '\|')
  exe 'syntax match VimwikiHTMLtag #\c</\?\%('.s:html_tags.'\)\%(\s\{-1}\S\{-}\)\{-}\s*/\?>#'
  execute 'syntax match VimwikiBold #\c<b>.\{-}</b># contains=VimwikiHTMLTag'
  execute 'syntax match VimwikiItalic #\c<i>.\{-}</i># contains=VimwikiHTMLTag'
  execute 'syntax match VimwikiUnderline #\c<u>.\{-}</u># contains=VimwikiHTMLTag'

  execute 'syntax match VimwikiComment /'.vimwiki#vars#get_syntaxlocal('rxComment').
        \ '/ contains=@Spell,VimwikiTodo'
endif

" tags
execute 'syntax match VimwikiTag /'.vimwiki#vars#get_syntaxlocal('rxTags').'/'



" header groups highlighting
if vimwiki#vars#get_global('hl_headers') == 0
  " Strangely in default colorscheme Title group is not set to bold for cterm...
  if !exists("g:colors_name")
    hi Title cterm=bold
  endif
  for s:i in range(1,6)
    execute 'hi def link VimwikiHeader'.s:i.' Title'
  endfor
else
  for s:i in range(1,6)
    execute 'hi def VimwikiHeader'.s:i.' guibg=bg guifg='
          \ .vimwiki#vars#get_global('hcolor_guifg_'.&bg)[s:i-1].' gui=bold ctermfg='
          \ .vimwiki#vars#get_global('hcolor_ctermfg_'.&bg)[s:i-1].' term=bold cterm=bold'
  endfor
endif



hi def link VimwikiMarkers Normal

hi def link VimwikiEqIn Number
hi def link VimwikiEqInT VimwikiEqIn

hi def VimwikiBold term=bold cterm=bold gui=bold
hi def link VimwikiBoldT VimwikiBold

hi def VimwikiItalic term=italic cterm=italic gui=italic
hi def link VimwikiItalicT VimwikiItalic

hi def VimwikiBoldItalic term=bold,italic cterm=bold,italic gui=bold,italic
hi def link VimwikiItalicBold VimwikiBoldItalic
hi def link VimwikiBoldItalicT VimwikiBoldItalic
hi def link VimwikiItalicBoldT VimwikiBoldItalic

hi def VimwikiUnderline gui=underline

hi def link VimwikiCode PreProc
hi def link VimwikiCodeT VimwikiCode

hi def link VimwikiPre PreProc
hi def link VimwikiPreT VimwikiPre
hi def link VimwikiPreDelim VimwikiPre

hi def link VimwikiMath Number
hi def link VimwikiMathT VimwikiMath

hi def link VimwikiNoExistsLink SpellBad
hi def link VimwikiNoExistsLinkT VimwikiNoExistsLink

hi def link VimwikiLink Underlined
hi def link VimwikiLinkT VimwikiLink

hi def link VimwikiList Identifier
hi def link VimwikiListTodo VimwikiList
hi def link VimwikiCheckBoxDone Comment
hi def link VimwikiHR Identifier
hi def link VimwikiTag Keyword

hi def link VimwikiDelText Constant
hi def link VimwikiDelTextT VimwikiDelText

hi def link VimwikiSuperScript Number
hi def link VimwikiSuperScriptT VimwikiSuperScript

hi def link VimwikiSubScript Number
hi def link VimwikiSubScriptT VimwikiSubScript

hi def link VimwikiTodo Todo
hi def link VimwikiComment Comment

hi def link VimwikiPlaceholder SpecialKey
hi def link VimwikiPlaceholderParam String
hi def link VimwikiHTMLtag SpecialKey

hi def link VimwikiEqInChar VimwikiMarkers
hi def link VimwikiCellSeparator VimwikiMarkers
hi def link VimwikiBoldChar VimwikiMarkers
hi def link VimwikiItalicChar VimwikiMarkers
hi def link VimwikiBoldItalicChar VimwikiMarkers
hi def link VimwikiItalicBoldChar VimwikiMarkers
hi def link VimwikiDelTextChar VimwikiMarkers
hi def link VimwikiSuperScriptChar VimwikiMarkers
hi def link VimwikiSubScriptChar VimwikiMarkers
hi def link VimwikiCodeChar VimwikiMarkers
hi def link VimwikiHeaderChar VimwikiMarkers

hi def link VimwikiEqInCharT VimwikiMarkers
hi def link VimwikiBoldCharT VimwikiMarkers
hi def link VimwikiItalicCharT VimwikiMarkers
hi def link VimwikiBoldItalicCharT VimwikiMarkers
hi def link VimwikiItalicBoldCharT VimwikiMarkers
hi def link VimwikiDelTextCharT VimwikiMarkers
hi def link VimwikiSuperScriptCharT VimwikiMarkers
hi def link VimwikiSubScriptCharT VimwikiMarkers
hi def link VimwikiCodeCharT VimwikiMarkers
hi def link VimwikiHeaderCharT VimwikiMarkers
hi def link VimwikiLinkCharT VimwikiLinkT
hi def link VimwikiNoExistsLinkCharT VimwikiNoExistsLinkT


" Load syntax-specific functionality
call vimwiki#u#reload_regexes_custom()


" FIXME it now does not make sense to pretend there is a single syntax "vimwiki"
let b:current_syntax="vimwiki"


" EMBEDDED syntax setup
let s:nested = vimwiki#vars#get_wikilocal('nested_syntaxes')
if vimwiki#vars#get_wikilocal('automatic_nested_syntaxes')
  let s:nested = extend(s:nested, vimwiki#base#detect_nested_syntax(), "keep")
endif
if !empty(s:nested)
  for [s:hl_syntax, s:vim_syntax] in items(s:nested)
    call vimwiki#base#nested_syntax(s:vim_syntax,
          \ vimwiki#vars#get_syntaxlocal('rxPreStart').'\%(.*[[:blank:][:punct:]]\)\?'.
          \ s:hl_syntax.'\%([[:blank:][:punct:]].*\)\?',
          \ vimwiki#vars#get_syntaxlocal('rxPreEnd'), 'VimwikiPre')
  endfor
endif


" LaTeX
call vimwiki#base#nested_syntax('tex', 
      \ vimwiki#vars#get_syntaxlocal('rxMathStart').'\%(.*[[:blank:][:punct:]]\)\?'.
      \ '\%([[:blank:][:punct:]].*\)\?',
      \ vimwiki#vars#get_syntaxlocal('rxMathEnd'), 'VimwikiMath')


syntax spell toplevel