re-integrate runtime/ vim-patch:0 #938

Vim runtime files based on 7.4.384 / hg changeset 7090d7f160f7

Excluding:
  Amiga icons (*.info, icons/)
  doc/hangulin.txt
  tutor/
  spell/
  lang/ (only used for menu translations)
  macros/maze/, macros/hanoi/, macros/life/, macros/urm/
      These were used to test vi compatibility.
  termcap
      "Demonstration of a termcap file (for the Amiga and Archimedes)"

Helped-by: Rich Wareham <rjw57@cam.ac.uk>
Helped-by: John <john.schmidt.h@gmail.com>
Helped-by: Yann <yann@yann-salaun.com>
Helped-by: Christophe Badoit <c.badoit@lesiteimmo.com>
Helped-by: drasill <github@tof2k.com>
Helped-by: Tae Sandoval Murgan <taecilla@gmail.com>
Helped-by: Lowe Thiderman <lowe.thiderman@gmail.com>

1 files changed, 1339 insertions, 0 deletions

diff --git a/runtime/syntax/tex.vim b/runtime/syntax/tex.vim
new file mode 100644
index 0000000000..31114bc093
--- /dev/null
+++ b/runtime/syntax/tex.vim
@@ -0,0 +1,1339 @@
+" Vim syntax file
+" Language:	TeX
+" Maintainer:	Charles E. Campbell <NdrchipO@ScampbellPfamily.AbizM>
+" Last Change:	Mar 20, 2014
+" Version:	81
+" URL:		http://www.drchip.org/astronaut/vim/index.html#SYNTAX_TEX
+"
+" Notes: {{{1
+"
+" 1. If you have a \begin{verbatim} that appears to overrun its boundaries,
+"    use %stopzone.
+"
+" 2. Run-on equations ($..$ and $$..$$, particularly) can also be stopped
+"    by suitable use of %stopzone.
+"
+" 3. If you have a slow computer, you may wish to modify
+"
+"	syn sync maxlines=200
+"	syn sync minlines=50
+"
+"    to values that are more to your liking.
+"
+" 4. There is no match-syncing for $...$ and $$...$$; hence large
+"    equation blocks constructed that way may exhibit syncing problems.
+"    (there's no difference between begin/end patterns)
+"
+" 5. If you have the variable "g:tex_no_error" defined then none of the
+"    lexical error-checking will be done.
+"
+"    ie. let g:tex_no_error=1
+"
+" 6. Please see  :help latex-syntax  for information on
+"      syntax folding           :help tex-folding
+"      spell checking           :help tex-nospell
+"      commands and mathzones   :help tex-runon
+"      new command highlighting :help tex-morecommands
+"      error highlighting       :help tex-error
+"      new math groups          :help tex-math
+"      new styles               :help tex-style
+"      using conceal mode       :help tex-conceal
+
+" Version Clears: {{{1
+" For version 5.x: Clear all syntax items
+" For version 6.x: Quit when a syntax file was already loaded
+if version < 600
+  syntax clear
+elseif exists("b:current_syntax")
+  finish
+endif
+let s:keepcpo= &cpo
+set cpo&vim
+scriptencoding utf-8
+
+" Define the default highlighting. {{{1
+" For version 5.7 and earlier: only when not done already
+" For version 5.8 and later: only when an item doesn't have highlighting yet
+if version >= 508 || !exists("did_tex_syntax_inits")
+ let did_tex_syntax_inits = 1
+ if version < 508
+  command -nargs=+ HiLink hi link <args>
+ else
+  command -nargs=+ HiLink hi def link <args>
+ endif
+endif
+if exists("g:tex_no_error") && g:tex_no_error
+ let s:tex_no_error= 1
+endif
+
+" by default, enable all region-based highlighting
+let s:tex_fast= "bcmMprsSvV"
+if exists("g:tex_fast")
+ if type(g:tex_fast) != 1
+  " g:tex_fast exists and is not a string, so
+  " turn off all optional region-based highighting
+  let s:tex_fast= ""
+ else
+  let s:tex_fast= g:tex_fast
+ endif
+ let s:tex_no_error= 1
+else
+ let s:tex_fast= "bcmMprsSvV"
+endif
+
+" let user determine which classes of concealment will be supported
+"   a=accents/ligatures d=delimiters m=math symbols  g=Greek  s=superscripts/subscripts
+if !exists("g:tex_conceal")
+ let s:tex_conceal= 'abdmgsS'
+else
+ let s:tex_conceal= g:tex_conceal
+endif
+
+" Determine whether or not to use "*.sty" mode {{{1
+" The user may override the normal determination by setting
+"   g:tex_stylish to 1      (for    "*.sty" mode)
+"    or to           0 else (normal "*.tex" mode)
+" or on a buffer-by-buffer basis with b:tex_stylish
+let s:extfname=expand("%:e")
+if exists("g:tex_stylish")
+ let b:tex_stylish= g:tex_stylish
+elseif !exists("b:tex_stylish")
+ if s:extfname == "sty" || s:extfname == "cls" || s:extfname == "clo" || s:extfname == "dtx" || s:extfname == "ltx"
+  let b:tex_stylish= 1
+ else
+  let b:tex_stylish= 0
+ endif
+endif
+
+" handle folding {{{1
+if !exists("g:tex_fold_enabled")
+ let g:tex_fold_enabled= 0
+elseif g:tex_fold_enabled && !has("folding")
+ let g:tex_fold_enabled= 0
+ echomsg "Ignoring g:tex_fold_enabled=".g:tex_fold_enabled."; need to re-compile vim for +fold support"
+endif
+if g:tex_fold_enabled && &fdm == "manual"
+ setl fdm=syntax
+endif
+
+" (La)TeX keywords: uses the characters 0-9,a-z,A-Z,192-255 only... {{{1
+" but _ is the only one that causes problems.
+" One may override this iskeyword setting by providing
+" g:tex_isk
+if exists("g:tex_isk")
+ exe "setlocal isk=".g:tex_isk
+else
+ setlocal isk=48-57,a-z,A-Z,192-255
+endif
+if b:tex_stylish
+  setlocal isk+=@-@
+endif
+if exists("g:tex_nospell") && g:tex_nospell && !exists("g:tex_comment_nospell")
+ let g:tex_comment_nospell= 1
+endif
+
+" Clusters: {{{1
+" --------
+syn cluster texCmdGroup		contains=texCmdBody,texComment,texDefParm,texDelimiter,texDocType,texInput,texLength,texLigature,texMathDelim,texMathOper,texNewCmd,texNewEnv,texRefZone,texSection,texBeginEnd,texBeginEndName,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle
+if !exists("s:tex_no_error")
+ syn cluster texCmdGroup	add=texMathError
+endif
+syn cluster texEnvGroup		contains=texMatcher,texMathDelim,texSpecialChar,texStatement
+syn cluster texFoldGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texInputFile,texLength,texLigature,texMatcher,texMathZoneV,texMathZoneW,texMathZoneX,texMathZoneY,texMathZoneZ,texNewCmd,texNewEnv,texOnlyMath,texOption,texParen,texRefZone,texSection,texBeginEnd,texSectionZone,texSpaceCode,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,@texMathZones,texTitle,texAbstract,texBoldStyle,texItalStyle,texNoSpell
+syn cluster texBoldGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texInputFile,texLength,texLigature,texMatcher,texMathZoneV,texMathZoneW,texMathZoneX,texMathZoneY,texMathZoneZ,texNewCmd,texNewEnv,texOnlyMath,texOption,texParen,texRefZone,texSection,texBeginEnd,texSectionZone,texSpaceCode,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,@texMathZones,texTitle,texAbstract,texBoldStyle,texBoldItalStyle,texNoSpell
+syn cluster texItalGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texInputFile,texLength,texLigature,texMatcher,texMathZoneV,texMathZoneW,texMathZoneX,texMathZoneY,texMathZoneZ,texNewCmd,texNewEnv,texOnlyMath,texOption,texParen,texRefZone,texSection,texBeginEnd,texSectionZone,texSpaceCode,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,@texMathZones,texTitle,texAbstract,texItalStyle,texItalBoldStyle,texNoSpell
+if !exists("g:tex_nospell") || !g:tex_nospell
+ syn cluster texMatchGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMatcher,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,@Spell
+ syn cluster texStyleGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,texStyleStatement,@Spell,texStyleMatcher
+else
+ syn cluster texMatchGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMatcher,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption
+ syn cluster texStyleGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,texStyleStatement,texStyleMatcher
+endif
+syn cluster texPreambleMatchGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMatcher,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,texMathZoneZ
+syn cluster texRefGroup		contains=texMatcher,texComment,texDelimiter
+if !exists("tex_no_math")
+ syn cluster texMathZones	contains=texMathZoneV,texMathZoneW,texMathZoneX,texMathZoneY,texMathZoneZ
+ syn cluster texMatchGroup	add=@texMathZones
+ syn cluster texMathDelimGroup	contains=texMathDelimBad,texMathDelimKey,texMathDelimSet1,texMathDelimSet2
+ syn cluster texMathMatchGroup	contains=@texMathZones,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMathDelim,texMathMatcher,texMathOper,texNewCmd,texNewEnv,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone
+ syn cluster texMathZoneGroup	contains=texComment,texDelimiter,texLength,texMathDelim,texMathMatcher,texMathOper,texMathSymbol,texMathText,texRefZone,texSpecialChar,texStatement,texTypeSize,texTypeStyle
+ if !exists("s:tex_no_error")
+  syn cluster texMathMatchGroup	add=texMathError
+  syn cluster texMathZoneGroup	add=texMathError
+ endif
+ syn cluster texMathZoneGroup add=@NoSpell
+ " following used in the \part \chapter \section \subsection \subsubsection
+ " \paragraph \subparagraph \author \title highlighting
+ syn cluster texDocGroup		contains=texPartZone,@texPartGroup
+ syn cluster texPartGroup		contains=texChapterZone,texSectionZone,texParaZone
+ syn cluster texChapterGroup		contains=texSectionZone,texParaZone
+ syn cluster texSectionGroup		contains=texSubSectionZone,texParaZone
+ syn cluster texSubSectionGroup		contains=texSubSubSectionZone,texParaZone
+ syn cluster texSubSubSectionGroup	contains=texParaZone
+ syn cluster texParaGroup		contains=texSubParaZone
+ if has("conceal") && &enc == 'utf-8'
+  syn cluster texMathZoneGroup	add=texGreek,texSuperscript,texSubscript,texMathSymbol
+  syn cluster texMathMatchGroup	add=texGreek,texSuperscript,texSubscript,texMathSymbol
+ endif
+endif
+
+" Try to flag {} and () mismatches: {{{1
+if s:tex_fast =~ 'm'
+  if !exists("s:tex_no_error")
+   syn region texMatcher		matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"		contains=@texMatchGroup,texError
+   syn region texMatcher		matchgroup=Delimiter start="\["				end="]"		contains=@texMatchGroup,texError,@NoSpell
+  else
+   syn region texMatcher		matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"		contains=@texMatchGroup
+   syn region texMatcher		matchgroup=Delimiter start="\["				end="]"		contains=@texMatchGroup
+  endif
+  if !exists("g:tex_nospell") || !g:tex_nospell
+   syn region texParen		start="("						end=")"		contains=@texMatchGroup,@Spell
+  else
+   syn region texParen		start="("						end=")"		contains=@texMatchGroup
+  endif
+endif
+if !exists("s:tex_no_error")
+ syn match  texError		"[}\])]"
+endif
+if s:tex_fast =~ 'M'
+  if !exists("tex_no_math")
+   if !exists("s:tex_no_error")
+    syn match  texMathError	"}"	contained
+   endif
+   syn region texMathMatcher	matchgroup=Delimiter	start="{"          skip="\\\\\|\\}"     end="}" end="%stopzone\>"	contained contains=@texMathMatchGroup
+  endif
+endif
+
+" TeX/LaTeX keywords: {{{1
+" Instead of trying to be All Knowing, I just match \..alphameric..
+" Note that *.tex files may not have "@" in their \commands
+if exists("g:tex_tex") || b:tex_stylish
+  syn match texStatement	"\\[a-zA-Z@]\+"
+else
+  syn match texStatement	"\\\a\+"
+  if !exists("s:tex_no_error")
+   syn match texError		"\\\a*@[a-zA-Z@]*"
+  endif
+endif
+
+" TeX/LaTeX delimiters: {{{1
+syn match texDelimiter		"&"
+syn match texDelimiter		"\\\\"
+syn match texDelimiter		"[{}]"
+
+" Tex/Latex Options: {{{1
+syn match texOption		"[^\\]\zs#\d\+\|^#\d\+"
+
+" texAccent (tnx to Karim Belabas) avoids annoying highlighting for accents: {{{1
+if b:tex_stylish
+  syn match texAccent		"\\[bcdvuH][^a-zA-Z@]"me=e-1
+  syn match texLigature		"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)[^a-zA-Z@]"me=e-1
+else
+  syn match texAccent		"\\[bcdvuH]\A"me=e-1
+  syn match texLigature		"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)\A"me=e-1
+endif
+syn match texAccent		"\\[bcdvuH]$"
+syn match texAccent		+\\[=^.\~"`']+
+syn match texAccent		+\\['=t'.c^ud"vb~Hr]{\a}+
+syn match texLigature		"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)$"
+
+" \begin{}/\end{} section markers: {{{1
+syn match  texBeginEnd		"\\begin\>\|\\end\>" nextgroup=texBeginEndName
+if s:tex_fast =~ 'm'
+  syn region texBeginEndName	matchgroup=Delimiter	start="{"		end="}"	contained	nextgroup=texBeginEndModifier	contains=texComment
+  syn region texBeginEndModifier	matchgroup=Delimiter	start="\["		end="]"	contained	contains=texComment,@NoSpell
+endif
+
+" \documentclass, \documentstyle, \usepackage: {{{1
+syn match  texDocType		"\\documentclass\>\|\\documentstyle\>\|\\usepackage\>"	nextgroup=texBeginEndName,texDocTypeArgs
+if s:tex_fast =~ 'm'
+  syn region texDocTypeArgs	matchgroup=Delimiter start="\[" end="]"			contained	nextgroup=texBeginEndName	contains=texComment,@NoSpell
+endif
+
+" Preamble syntax-based folding support: {{{1
+if g:tex_fold_enabled && has("folding")
+ syn region texPreamble	transparent fold	start='\zs\\documentclass\>' end='\ze\\begin{document}'	contains=texStyle,@texPreambleMatchGroup
+endif
+
+" TeX input: {{{1
+syn match texInput		"\\input\s\+[a-zA-Z/.0-9_^]\+"hs=s+7				contains=texStatement
+syn match texInputFile		"\\include\(graphics\|list\)\=\(\[.\{-}\]\)\=\s*{.\{-}}"	contains=texStatement,texInputCurlies,texInputFileOpt
+syn match texInputFile		"\\\(epsfig\|input\|usepackage\)\s*\(\[.*\]\)\={.\{-}}"		contains=texStatement,texInputCurlies,texInputFileOpt
+syn match texInputCurlies	"[{}]"								contained
+if s:tex_fast =~ 'm'
+ syn region texInputFileOpt	matchgroup=Delimiter start="\[" end="\]"			contained	contains=texComment
+endif
+
+" Type Styles (LaTeX 2.09): {{{1
+syn match texTypeStyle		"\\rm\>"
+syn match texTypeStyle		"\\em\>"
+syn match texTypeStyle		"\\bf\>"
+syn match texTypeStyle		"\\it\>"
+syn match texTypeStyle		"\\sl\>"
+syn match texTypeStyle		"\\sf\>"
+syn match texTypeStyle		"\\sc\>"
+syn match texTypeStyle		"\\tt\>"
+
+" Type Styles: attributes, commands, families, etc (LaTeX2E): {{{1
+if s:tex_conceal !~ 'b'
+ syn match texTypeStyle		"\\textbf\>"
+ syn match texTypeStyle		"\\textit\>"
+endif
+syn match texTypeStyle		"\\textmd\>"
+syn match texTypeStyle		"\\textrm\>"
+syn match texTypeStyle		"\\textsc\>"
+syn match texTypeStyle		"\\textsf\>"
+syn match texTypeStyle		"\\textsl\>"
+syn match texTypeStyle		"\\texttt\>"
+syn match texTypeStyle		"\\textup\>"
+syn match texTypeStyle		"\\emph\>"
+
+syn match texTypeStyle		"\\mathbb\>"
+syn match texTypeStyle		"\\mathbf\>"
+syn match texTypeStyle		"\\mathcal\>"
+syn match texTypeStyle		"\\mathfrak\>"
+syn match texTypeStyle		"\\mathit\>"
+syn match texTypeStyle		"\\mathnormal\>"
+syn match texTypeStyle		"\\mathrm\>"
+syn match texTypeStyle		"\\mathsf\>"
+syn match texTypeStyle		"\\mathtt\>"
+
+syn match texTypeStyle		"\\rmfamily\>"
+syn match texTypeStyle		"\\sffamily\>"
+syn match texTypeStyle		"\\ttfamily\>"
+
+syn match texTypeStyle		"\\itshape\>"
+syn match texTypeStyle		"\\scshape\>"
+syn match texTypeStyle		"\\slshape\>"
+syn match texTypeStyle		"\\upshape\>"
+
+syn match texTypeStyle		"\\bfseries\>"
+syn match texTypeStyle		"\\mdseries\>"
+
+" Some type sizes: {{{1
+syn match texTypeSize		"\\tiny\>"
+syn match texTypeSize		"\\scriptsize\>"
+syn match texTypeSize		"\\footnotesize\>"
+syn match texTypeSize		"\\small\>"
+syn match texTypeSize		"\\normalsize\>"
+syn match texTypeSize		"\\large\>"
+syn match texTypeSize		"\\Large\>"
+syn match texTypeSize		"\\LARGE\>"
+syn match texTypeSize		"\\huge\>"
+syn match texTypeSize		"\\Huge\>"
+
+" Spacecodes (TeX'isms): {{{1
+" \mathcode`\^^@="2201  \delcode`\(="028300  \sfcode`\)=0 \uccode`X=`X  \lccode`x=`x
+syn match texSpaceCode		"\\\(math\|cat\|del\|lc\|sf\|uc\)code`"me=e-1 nextgroup=texSpaceCodeChar
+syn match texSpaceCodeChar    "`\\\=.\(\^.\)\==\(\d\|\"\x\{1,6}\|`.\)"	contained
+
+" Sections, subsections, etc: {{{1
+if s:tex_fast =~ 'p'
+  if !exists("g:tex_nospell") || !g:tex_nospell
+   if g:tex_fold_enabled && has("folding")
+    syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											fold contains=@texFoldGroup,@texDocGroup,@Spell
+    syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								fold contains=@texFoldGroup,@texPartGroup,@Spell
+    syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							fold contains=@texFoldGroup,@texChapterGroup,@Spell
+    syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					fold contains=@texFoldGroup,@texSectionGroup,@Spell
+    syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSectionGroup,@Spell
+    syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSubSectionGroup,@Spell
+    syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			fold contains=@texFoldGroup,@texParaGroup,@Spell
+    syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	fold contains=@texFoldGroup,@Spell
+    syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													fold contains=@texFoldGroup,@Spell
+    syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											fold contains=@texFoldGroup,@Spell
+   else
+    syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											contains=@texFoldGroup,@texDocGroup,@Spell
+    syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								contains=@texFoldGroup,@texPartGroup,@Spell
+    syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							contains=@texFoldGroup,@texChapterGroup,@Spell
+    syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					contains=@texFoldGroup,@texSectionGroup,@Spell
+    syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSectionGroup,@Spell
+    syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSubSectionGroup,@Spell
+    syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			contains=@texFoldGroup,@texParaGroup,@Spell
+    syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	contains=@texFoldGroup,@Spell
+    syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													contains=@texFoldGroup,@Spell
+    syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											contains=@texFoldGroup,@Spell
+   endif
+  else
+   if g:tex_fold_enabled && has("folding")
+    syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											fold contains=@texFoldGroup,@texDocGroup
+    syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								fold contains=@texFoldGroup,@texPartGroup
+    syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							fold contains=@texFoldGroup,@texChapterGroup
+    syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					fold contains=@texFoldGroup,@texSectionGroup
+    syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSectionGroup
+    syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSubSectionGroup
+    syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			fold contains=@texFoldGroup,@texParaGroup
+    syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	fold contains=@texFoldGroup
+    syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													fold contains=@texFoldGroup
+    syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											fold contains=@texFoldGroup
+   else
+    syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											contains=@texFoldGroup,@texDocGroup
+    syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								contains=@texFoldGroup,@texPartGroup
+    syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							contains=@texFoldGroup,@texChapterGroup
+    syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					contains=@texFoldGroup,@texSectionGroup
+    syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSectionGroup
+    syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSubSectionGroup
+    syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			contains=@texFoldGroup,@texParaGroup
+    syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	contains=@texFoldGroup
+    syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													contains=@texFoldGroup
+    syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											contains=@texFoldGroup
+   endif
+  endif
+endif
+
+" particular support for bold and italic {{{1
+if s:tex_fast =~ 'b'
+  if s:tex_conceal =~ 'b'
+   syn region texBoldStyle	matchgroup=texTypeStyle start="\\textbf\s*{" end="}" concealends contains=@texBoldGroup
+   syn region texBoldItalStyle	matchgroup=texTypeStyle start="\\textit\s*{" end="}" concealends contains=@texItalGroup
+   syn region texItalStyle	matchgroup=texTypeStyle start="\\textit\s*{" end="}" concealends contains=@texItalGroup
+   syn region texItalBoldStyle	matchgroup=texTypeStyle start="\\textbf\s*{" end="}" concealends contains=@texBoldGroup
+  endif
+endif
+
+" Bad Math (mismatched): {{{1
+if !exists("g:tex_no_math") && !exists("s:tex_no_error")
+ syn match texBadMath		"\\end\s*{\s*\(array\|gathered\|bBpvV]matrix\|split\|subequations\|smallmatrix\|xxalignat\)\s*}"
+ syn match texBadMath		"\\end\s*{\s*\(align\|alignat\|displaymath\|displaymath\|eqnarray\|equation\|flalign\|gather\|math\|multline\|xalignat\)\*\=\s*}"
+ syn match texBadMath		"\\[\])]"
+endif
+
+" Math Zones: {{{1
+if !exists("tex_no_math")
+ " TexNewMathZone: function creates a mathzone with the given suffix and mathzone name. {{{2
+ "                 Starred forms are created if starform is true.  Starred
+ "                 forms have syntax group and synchronization groups with a
+ "                 "S" appended.  Handles: cluster, syntax, sync, and HiLink.
+ fun! TexNewMathZone(sfx,mathzone,starform)
+   let grpname  = "texMathZone".a:sfx
+   let syncname = "texSyncMathZone".a:sfx
+   if g:tex_fold_enabled
+    let foldcmd= " fold"
+   else
+    let foldcmd= ""
+   endif
+   exe "syn cluster texMathZones add=".grpname
+   if s:tex_fast =~ 'M'
+    exe 'syn region '.grpname.' start='."'".'\\begin\s*{\s*'.a:mathzone.'\s*}'."'".' end='."'".'\\end\s*{\s*'.a:mathzone.'\s*}'."'".' keepend contains=@texMathZoneGroup'.foldcmd
+    exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
+    exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
+   endif
+   exe 'hi def link '.grpname.' texMath'
+   if a:starform
+    let grpname  = "texMathZone".a:sfx.'S'
+    let syncname = "texSyncMathZone".a:sfx.'S'
+    exe "syn cluster texMathZones add=".grpname
+    if s:tex_fast =~ 'M'
+     exe 'syn region '.grpname.' start='."'".'\\begin\s*{\s*'.a:mathzone.'\*\s*}'."'".' end='."'".'\\end\s*{\s*'.a:mathzone.'\*\s*}'."'".' keepend contains=@texMathZoneGroup'.foldcmd
+     exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
+     exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
+    endif
+    exe 'hi def link '.grpname.' texMath'
+   endif
+ endfun
+
+ " Standard Math Zones: {{{2
+ call TexNewMathZone("A","align",1)
+ call TexNewMathZone("B","alignat",1)
+ call TexNewMathZone("C","displaymath",1)
+ call TexNewMathZone("D","eqnarray",1)
+ call TexNewMathZone("E","equation",1)
+ call TexNewMathZone("F","flalign",1)
+ call TexNewMathZone("G","gather",1)
+ call TexNewMathZone("H","math",1)
+ call TexNewMathZone("I","multline",1)
+ call TexNewMathZone("J","subequations",0)
+ call TexNewMathZone("K","xalignat",1)
+ call TexNewMathZone("L","xxalignat",0)
+
+ " Inline Math Zones: {{{2
+ if s:tex_fast =~ 'M'
+  if has("conceal") && &enc == 'utf-8' && s:tex_conceal =~ 'd'
+   syn region texMathZoneV	matchgroup=Delimiter start="\\("			matchgroup=Delimiter end="\\)\|%stopzone\>"	keepend concealends contains=@texMathZoneGroup
+   syn region texMathZoneW	matchgroup=Delimiter start="\\\["			matchgroup=Delimiter end="\\]\|%stopzone\>"	keepend concealends contains=@texMathZoneGroup
+   syn region texMathZoneX	matchgroup=Delimiter start="\$" skip="\\\\\|\\\$"	matchgroup=Delimiter end="\$" end="%stopzone\>"		concealends contains=@texMathZoneGroup
+   syn region texMathZoneY	matchgroup=Delimiter start="\$\$" 			matchgroup=Delimiter end="\$\$" end="%stopzone\>"	concealends keepend		contains=@texMathZoneGroup
+  else
+   syn region texMathZoneV	matchgroup=Delimiter start="\\("			matchgroup=Delimiter end="\\)\|%stopzone\>"	keepend contains=@texMathZoneGroup
+   syn region texMathZoneW	matchgroup=Delimiter start="\\\["			matchgroup=Delimiter end="\\]\|%stopzone\>"	keepend contains=@texMathZoneGroup
+   syn region texMathZoneX	matchgroup=Delimiter start="\$" skip="\\\\\|\\\$"	matchgroup=Delimiter end="\$" end="%stopzone\>"	contains=@texMathZoneGroup
+   syn region texMathZoneY	matchgroup=Delimiter start="\$\$" 			matchgroup=Delimiter end="\$\$" end="%stopzone\>"	keepend		contains=@texMathZoneGroup
+  endif
+  syn region texMathZoneZ	matchgroup=texStatement start="\\ensuremath\s*{"	matchgroup=texStatement end="}" end="%stopzone\>"	contains=@texMathZoneGroup
+ endif
+
+ syn match texMathOper		"[_^=]" contained
+
+ " Text Inside Math Zones: {{{2
+ if s:tex_fast =~ 'M'
+  if !exists("g:tex_nospell") || !g:tex_nospell
+   syn region texMathText matchgroup=texStatement start='\\\(\(inter\)\=text\|mbox\)\s*{'	end='}'	contains=@texFoldGroup,@Spell
+  else
+   syn region texMathText matchgroup=texStatement start='\\\(\(inter\)\=text\|mbox\)\s*{'	end='}'	contains=@texFoldGroup
+  endif
+ endif
+
+ " \left..something.. and \right..something.. support: {{{2
+ syn match   texMathDelimBad	contained		"\S"
+ if has("conceal") && &enc == 'utf-8' && s:tex_conceal =~ 'm'
+  syn match   texMathDelim	contained		"\\left\\{\>"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad contains=texMathSymbol cchar={
+  syn match   texMathDelim	contained		"\\right\\}\>"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad contains=texMathSymbol cchar=}
+  let s:texMathDelimList=[
+     \ ['<'            , '<'] ,
+     \ ['>'            , '>'] ,
+     \ ['('            , '('] ,
+     \ [')'            , ')'] ,
+     \ ['\['           , '['] ,
+     \ [']'            , ']'] ,
+     \ ['\\{'          , '{'] ,
+     \ ['\\}'          , '}'] ,
+     \ ['|'            , '|'] ,
+     \ ['\\|'          , '‖'] ,
+     \ ['\\backslash'  , '\'] ,
+     \ ['\\downarrow'  , '↓'] ,
+     \ ['\\Downarrow'  , '⇓'] ,
+     \ ['\\langle'     , '<'] ,
+     \ ['\\lbrace'     , '['] ,
+     \ ['\\lceil'      , '⌈'] ,
+     \ ['\\lfloor'     , '⌊'] ,
+     \ ['\\lgroup'     , '⌊'] ,
+     \ ['\\lmoustache' , '⎛'] ,
+     \ ['\\rangle'     , '>'] ,
+     \ ['\\rbrace'     , ']'] ,
+     \ ['\\rceil'      , '⌉'] ,
+     \ ['\\rfloor'     , '⌋'] ,
+     \ ['\\rgroup'     , '⌋'] ,
+     \ ['\\rmoustache' , '⎞'] ,
+     \ ['\\uparrow'    , '↑'] ,
+     \ ['\\Uparrow'    , '↑'] ,
+     \ ['\\updownarrow', '↕'] ,
+     \ ['\\Updownarrow', '⇕']]
+  syn match texMathDelim	'\\[bB]igg\=[lr]' contained nextgroup=texMathDelimBad
+  for texmath in s:texMathDelimList
+   exe "syn match texMathDelim	'\\\\[bB]igg\\=[lr]\\=".texmath[0]."'	contained conceal cchar=".texmath[1]
+  endfor
+
+ else
+  syn match   texMathDelim	contained		"\\\(left\|right\)\>"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad
+  syn match   texMathDelim	contained		"\\[bB]igg\=[lr]\=\>"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad
+  syn match   texMathDelimSet2	contained	"\\"		nextgroup=texMathDelimKey,texMathDelimBad
+  syn match   texMathDelimSet1	contained	"[<>()[\]|/.]\|\\[{}|]"
+  syn keyword texMathDelimKey	contained	backslash       lceil           lVert           rgroup          uparrow
+  syn keyword texMathDelimKey	contained	downarrow       lfloor          rangle          rmoustache      Uparrow
+  syn keyword texMathDelimKey	contained	Downarrow       lgroup          rbrace          rvert           updownarrow
+  syn keyword texMathDelimKey	contained	langle          lmoustache      rceil           rVert           Updownarrow
+  syn keyword texMathDelimKey	contained	lbrace          lvert           rfloor
+ endif
+ syn match   texMathDelim	contained		"\\\(left\|right\)arrow\>\|\<\([aA]rrow\|brace\)\=vert\>"
+ syn match   texMathDelim	contained		"\\lefteqn\>"
+endif
+
+" Special TeX characters  ( \$ \& \% \# \{ \} \_ \S \P ) : {{{1
+syn match texSpecialChar	"\\[$&%#{}_]"
+if b:tex_stylish
+  syn match texSpecialChar	"\\[SP@][^a-zA-Z@]"me=e-1
+else
+  syn match texSpecialChar	"\\[SP@]\A"me=e-1
+endif
+syn match texSpecialChar	"\\\\"
+if !exists("tex_no_math")
+ syn match texOnlyMath		"[_^]"
+endif
+syn match texSpecialChar	"\^\^[0-9a-f]\{2}\|\^\^\S"
+if s:tex_conceal !~ 'S'
+ syn match texSpecialChar	'\\glq\>'	contained conceal cchar=‚
+ syn match texSpecialChar	'\\grq\>'	contained conceal cchar=‘
+ syn match texSpecialChar	'\\glqq\>'	contained conceal cchar=„
+ syn match texSpecialChar	'\\grqq\>'	contained conceal cchar=“
+ syn match texSpecialChar	'\\hyp\>'	contained conceal cchar=-
+endif
+
+" Comments: {{{1
+"    Normal TeX LaTeX     :   %....
+"    Documented TeX Format:  ^^A...	-and-	leading %s (only)
+if !exists("g:tex_comment_nospell") || !g:tex_comment_nospell
+ syn cluster texCommentGroup	contains=texTodo,@Spell
+else
+ syn cluster texCommentGroup	contains=texTodo,@NoSpell
+endif
+syn case ignore
+syn keyword texTodo		contained		combak	fixme	todo	xxx
+syn case match
+if s:extfname == "dtx"
+  syn match texComment		"\^\^A.*$"	contains=@texCommentGroup
+  syn match texComment		"^%\+"		contains=@texCommentGroup
+else
+  if g:tex_fold_enabled
+   " allows syntax-folding of 2 or more contiguous comment lines
+   " single-line comments are not folded
+   syn match  texComment	"%.*$"			contains=@texCommentGroup
+   if s:tex_fast =~ 'c'
+    syn region texComment	start="^\zs\s*%.*\_s*%"	skip="^\s*%"	end='^\ze\s*[^%]' fold
+    syn region texNoSpell	contained fold		matchgroup=texComment start="%\s*nospell\s*{"	end="%\s*nospell\s*}"	contains=@texFoldGroup,@NoSpell
+   endif
+  else
+   syn match texComment		"%.*$"			contains=@texCommentGroup
+   if s:tex_fast =~ 'c'
+    syn region texNoSpell	contained		matchgroup=texComment start="%\s*nospell\s*{"	end="%\s*nospell\s*}"	contains=@texFoldGroup,@NoSpell
+   endif
+  endif
+endif
+
+" Separate lines used for verb` and verb# so that the end conditions {{{1
+" will appropriately terminate.
+" If g:tex_verbspell exists, then verbatim texZones will permit spellchecking there.
+if s:tex_fast =~ 'v'
+  if exists("g:tex_verbspell") && g:tex_verbspell
+   syn region texZone		start="\\begin{[vV]erbatim}"		end="\\end{[vV]erbatim}\|%stopzone\>"	contains=@Spell
+   " listings package:
+   syn region texZone		start="\\begin{lstlisting}"		end="\\end{lstlisting}\|%stopzone\>"	contains=@Spell
+   if version < 600
+    syn region texZone		start="\\verb\*\=`"			end="`\|%stopzone\>"			contains=@Spell
+    syn region texZone		start="\\verb\*\=#"			end="#\|%stopzone\>"			contains=@Spell
+   else
+     if b:tex_stylish
+      syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z@]\)"	end="\z1\|%stopzone\>"			contains=@Spell
+     else
+      syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z]\)"	end="\z1\|%stopzone\>"			contains=@Spell
+     endif
+   endif
+  else
+   syn region texZone		start="\\begin{[vV]erbatim}"		end="\\end{[vV]erbatim}\|%stopzone\>"
+   if version < 600
+    syn region texZone		start="\\verb\*\=`"			end="`\|%stopzone\>"
+    syn region texZone		start="\\verb\*\=#"			end="#\|%stopzone\>"
+   else
+     if b:tex_stylish
+       syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z@]\)"	end="\z1\|%stopzone\>"
+     else
+       syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z]\)"	end="\z1\|%stopzone\>"
+     endif
+   endif
+  endif
+endif
+
+" Tex Reference Zones: {{{1
+if s:tex_fast =~ 'r'
+  syn region texZone		matchgroup=texStatement start="@samp{"			end="}\|%stopzone\>"	contains=@texRefGroup
+  syn region texRefZone		matchgroup=texStatement start="\\nocite{"		end="}\|%stopzone\>"	contains=@texRefGroup
+  syn region texRefZone		matchgroup=texStatement start="\\bibliography{"		end="}\|%stopzone\>"	contains=@texRefGroup
+  syn region texRefZone		matchgroup=texStatement start="\\label{"		end="}\|%stopzone\>"	contains=@texRefGroup
+  syn region texRefZone		matchgroup=texStatement start="\\\(page\|eq\)ref{"	end="}\|%stopzone\>"	contains=@texRefGroup
+  syn region texRefZone		matchgroup=texStatement start="\\v\=ref{"		end="}\|%stopzone\>"	contains=@texRefGroup
+  syn region texRefOption	contained	matchgroup=Delimiter start='\[' end=']'		contains=@texRefGroup,texRefZone	nextgroup=texRefOption,texCite
+  syn region texCite	contained	matchgroup=Delimiter start='{' end='}'		contains=@texRefGroup,texRefZone,texCite
+endif
+syn match  texRefZone		'\\cite\%([tp]\*\=\)\=' nextgroup=texRefOption,texCite
+
+" Handle newcommand, newenvironment : {{{1
+syn match  texNewCmd				"\\newcommand\>"			nextgroup=texCmdName skipwhite skipnl
+if s:tex_fast =~ 'V'
+  syn region texCmdName contained matchgroup=Delimiter start="{"rs=s+1  end="}"		nextgroup=texCmdArgs,texCmdBody skipwhite skipnl
+  syn region texCmdArgs contained matchgroup=Delimiter start="\["rs=s+1 end="]"		nextgroup=texCmdBody skipwhite skipnl
+  syn region texCmdBody contained matchgroup=Delimiter start="{"rs=s+1 skip="\\\\\|\\[{}]"	matchgroup=Delimiter end="}" contains=@texCmdGroup
+endif
+syn match  texNewEnv				"\\newenvironment\>"			nextgroup=texEnvName skipwhite skipnl
+if s:tex_fast =~ 'V'
+  syn region texEnvName contained matchgroup=Delimiter start="{"rs=s+1  end="}"		nextgroup=texEnvBgn skipwhite skipnl
+  syn region texEnvBgn  contained matchgroup=Delimiter start="{"rs=s+1  end="}"		nextgroup=texEnvEnd skipwhite skipnl contains=@texEnvGroup
+  syn region texEnvEnd  contained matchgroup=Delimiter start="{"rs=s+1  end="}"		skipwhite skipnl contains=@texEnvGroup
+endif
+
+" Definitions/Commands: {{{1
+syn match texDefCmd				"\\def\>"				nextgroup=texDefName skipwhite skipnl
+if b:tex_stylish
+  syn match texDefName contained		"\\[a-zA-Z@]\+"				nextgroup=texDefParms,texCmdBody skipwhite skipnl
+  syn match texDefName contained		"\\[^a-zA-Z@]"				nextgroup=texDefParms,texCmdBody skipwhite skipnl
+else
+  syn match texDefName contained		"\\\a\+"				nextgroup=texDefParms,texCmdBody skipwhite skipnl
+  syn match texDefName contained		"\\\A"					nextgroup=texDefParms,texCmdBody skipwhite skipnl
+endif
+syn match texDefParms  contained		"#[^{]*"	contains=texDefParm	nextgroup=texCmdBody skipwhite skipnl
+syn match  texDefParm  contained		"#\d\+"
+
+" TeX Lengths: {{{1
+syn match  texLength		"\<\d\+\([.,]\d\+\)\=\s*\(true\)\=\s*\(bp\|cc\|cm\|dd\|em\|ex\|in\|mm\|pc\|pt\|sp\)\>"
+
+" TeX String Delimiters: {{{1
+syn match texString		"\(``\|''\|,,\)"
+
+" makeatletter -- makeatother sections
+if !exists("s:tex_no_error")
+ if s:tex_fast =~ 'S'
+  syn region texStyle			matchgroup=texStatement start='\\makeatletter' end='\\makeatother'	contains=@texStyleGroup contained
+ endif
+ syn match  texStyleStatement		"\\[a-zA-Z@]\+"	contained
+ if s:tex_fast =~ 'S'
+  syn region texStyleMatcher		matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"		contains=@texStyleGroup,texError	contained
+  syn region texStyleMatcher		matchgroup=Delimiter start="\["				end="]"		contains=@texStyleGroup,texError	contained
+ endif
+endif
+
+" Conceal mode support (supports set cole=2) {{{1
+if has("conceal") && &enc == 'utf-8'
+
+ " Math Symbols {{{2
+ " (many of these symbols were contributed by Björn Winckler)
+ if s:tex_conceal =~ 'm'
+  let s:texMathList=[
+    \ ['|'		, '‖'],
+    \ ['aleph'		, 'ℵ'],
+    \ ['amalg'		, '∐'],
+    \ ['angle'		, '∠'],
+    \ ['approx'		, '≈'],
+    \ ['ast'		, '∗'],
+    \ ['asymp'		, '≍'],
+    \ ['backepsilon'	, '∍'],
+    \ ['backsimeq'	, '≃'],
+    \ ['backslash'	, '∖'],
+    \ ['barwedge'	, '⊼'],
+    \ ['because'	, '∵'],
+    \ ['between'	, '≬'],
+    \ ['bigcap'		, '∩'],
+    \ ['bigcirc'	, '○'],
+    \ ['bigcup'		, '∪'],
+    \ ['bigodot'	, '⊙'],
+    \ ['bigoplus'	, '⊕'],
+    \ ['bigotimes'	, '⊗'],
+    \ ['bigsqcup'	, '⊔'],
+    \ ['bigtriangledown', '∇'],
+    \ ['bigtriangleup'	, '∆'],
+    \ ['bigvee'		, '⋁'],
+    \ ['bigwedge'	, '⋀'],
+    \ ['blacksquare'	, '∎'],
+    \ ['bot'		, '⊥'],
+    \ ['bowtie'	        , '⋈'],
+    \ ['boxdot'		, '⊡'],
+    \ ['boxminus'	, '⊟'],
+    \ ['boxplus'	, '⊞'],
+    \ ['boxtimes'	, '⊠'],
+    \ ['bullet'	        , '•'],
+    \ ['bumpeq'		, '≏'],
+    \ ['Bumpeq'		, '≎'],
+    \ ['cap'		, '∩'],
+    \ ['Cap'		, '⋒'],
+    \ ['cdot'		, '·'],
+    \ ['cdots'		, '⋯'],
+    \ ['circ'		, '∘'],
+    \ ['circeq'		, '≗'],
+    \ ['circlearrowleft', '↺'],
+    \ ['circlearrowright', '↻'],
+    \ ['circledast'	, '⊛'],
+    \ ['circledcirc'	, '⊚'],
+    \ ['clubsuit'	, '♣'],
+    \ ['complement'	, '∁'],
+    \ ['cong'		, '≅'],
+    \ ['coprod'		, '∐'],
+    \ ['copyright'	, '©'],
+    \ ['cup'		, '∪'],
+    \ ['Cup'		, '⋓'],
+    \ ['curlyeqprec'	, '⋞'],
+    \ ['curlyeqsucc'	, '⋟'],
+    \ ['curlyvee'	, '⋎'],
+    \ ['curlywedge'	, '⋏'],
+    \ ['dagger'	        , '†'],
+    \ ['dashv'		, '⊣'],
+    \ ['ddagger'	, '‡'],
+    \ ['ddots'	        , '⋱'],
+    \ ['diamond'	, '⋄'],
+    \ ['diamondsuit'	, '♢'],
+    \ ['div'		, '÷'],
+    \ ['doteq'		, '≐'],
+    \ ['doteqdot'	, '≑'],
+    \ ['dotplus'	, '∔'],
+    \ ['dots'		, '…'],
+    \ ['dotsb'		, '⋯'],
+    \ ['dotsc'		, '…'],
+    \ ['dotsi'		, '⋯'],
+    \ ['dotso'		, '…'],
+    \ ['doublebarwedge'	, '⩞'],
+    \ ['downarrow'	, '↓'],
+    \ ['Downarrow'	, '⇓'],
+    \ ['ell'		, 'ℓ'],
+    \ ['emptyset'	, '∅'],
+    \ ['eqcirc'		, '≖'],
+    \ ['eqsim'		, '≂'],
+    \ ['eqslantgtr'	, '⪖'],
+    \ ['eqslantless'	, '⪕'],
+    \ ['equiv'		, '≡'],
+    \ ['exists'		, '∃'],
+    \ ['fallingdotseq'	, '≒'],
+    \ ['flat'		, '♭'],
+    \ ['forall'		, '∀'],
+    \ ['frown'		, '⁔'],
+    \ ['ge'		, '≥'],
+    \ ['geq'		, '≥'],
+    \ ['geqq'		, '≧'],
+    \ ['gets'		, '←'],
+    \ ['gg'		, '⟫'],
+    \ ['gneqq'		, '≩'],
+    \ ['gtrdot'		, '⋗'],
+    \ ['gtreqless'	, '⋛'],
+    \ ['gtrless'	, '≷'],
+    \ ['gtrsim'		, '≳'],
+    \ ['hbar'		, 'ℏ'],
+    \ ['heartsuit'	, '♡'],
+    \ ['hookleftarrow'	, '↩'],
+    \ ['hookrightarrow'	, '↪'],
+    \ ['iiint'		, '∭'],
+    \ ['iint'		, '∬'],
+    \ ['Im'		, 'ℑ'],
+    \ ['imath'		, 'ɩ'],
+    \ ['in'		, '∈'],
+    \ ['infty'		, '∞'],
+    \ ['int'		, '∫'],
+    \ ['lceil'		, '⌈'],
+    \ ['ldots'		, '…'],
+    \ ['le'		, '≤'],
+    \ ['leadsto'	, '↝'],
+    \ ['left('		, '('],
+    \ ['left\['		, '['],
+    \ ['left\\{'	, '{'],
+    \ ['leftarrow'	, '⟵'],
+    \ ['Leftarrow'	, '⟸'],
+    \ ['leftarrowtail'	, '↢'],
+    \ ['leftharpoondown', '↽'],
+    \ ['leftharpoonup'	, '↼'],
+    \ ['leftrightarrow'	, '↔'],
+    \ ['Leftrightarrow'	, '⇔'],
+    \ ['leftrightsquigarrow', '↭'],
+    \ ['leftthreetimes'	, '⋋'],
+    \ ['leq'		, '≤'],
+    \ ['leq'		, '≤'],
+    \ ['leqq'		, '≦'],
+    \ ['lessdot'	, '⋖'],
+    \ ['lesseqgtr'	, '⋚'],
+    \ ['lesssim'	, '≲'],
+    \ ['lfloor'		, '⌊'],
+    \ ['ll'		, '≪'],
+    \ ['lmoustache'     , '╭'],
+    \ ['lneqq'		, '≨'],
+    \ ['ltimes'		, '⋉'],
+    \ ['mapsto'		, '↦'],
+    \ ['measuredangle'	, '∡'],
+    \ ['mid'		, '∣'],
+    \ ['models'		, '╞'],
+    \ ['mp'		, '∓'],
+    \ ['nabla'		, '∇'],
+    \ ['natural'	, '♮'],
+    \ ['ncong'		, '≇'],
+    \ ['ne'		, '≠'],
+    \ ['nearrow'	, '↗'],
+    \ ['neg'		, '¬'],
+    \ ['neq'		, '≠'],
+    \ ['nexists'	, '∄'],
+    \ ['ngeq'		, '≱'],
+    \ ['ngeqq'		, '≱'],
+    \ ['ngtr'		, '≯'],
+    \ ['ni'		, '∋'],
+    \ ['nleftarrow'	, '↚'],
+    \ ['nLeftarrow'	, '⇍'],
+    \ ['nLeftrightarrow', '⇎'],
+    \ ['nleq'		, '≰'],
+    \ ['nleqq'		, '≰'],
+    \ ['nless'		, '≮'],
+    \ ['nmid'		, '∤'],
+    \ ['notin'		, '∉'],
+    \ ['nprec'		, '⊀'],
+    \ ['nrightarrow'	, '↛'],
+    \ ['nRightarrow'	, '⇏'],
+    \ ['nsim'		, '≁'],
+    \ ['nsucc'		, '⊁'],
+    \ ['ntriangleleft'	, '⋪'],
+    \ ['ntrianglelefteq', '⋬'],
+    \ ['ntriangleright'	, '⋫'],
+    \ ['ntrianglerighteq', '⋭'],
+    \ ['nvdash'		, '⊬'],
+    \ ['nvDash'		, '⊭'],
+    \ ['nVdash'		, '⊮'],
+    \ ['nwarrow'	, '↖'],
+    \ ['odot'		, '⊙'],
+    \ ['oint'		, '∮'],
+    \ ['ominus'		, '⊖'],
+    \ ['oplus'		, '⊕'],
+    \ ['oslash'		, '⊘'],
+    \ ['otimes'		, '⊗'],
+    \ ['owns'		, '∋'],
+    \ ['P'	        , '¶'],
+    \ ['parallel'	, '║'],
+    \ ['partial'	, '∂'],
+    \ ['perp'		, '⊥'],
+    \ ['pitchfork'	, '⋔'],
+    \ ['pm'		, '±'],
+    \ ['prec'		, '≺'],
+    \ ['precapprox'	, '⪷'],
+    \ ['preccurlyeq'	, '≼'],
+    \ ['preceq'		, '⪯'],
+    \ ['precnapprox'	, '⪹'],
+    \ ['precneqq'	, '⪵'],
+    \ ['precsim'	, '≾'],
+    \ ['prime'		, '′'],
+    \ ['prod'		, '∏'],
+    \ ['propto'		, '∝'],
+    \ ['rceil'		, '⌉'],
+    \ ['Re'		, 'ℜ'],
+    \ ['rfloor'		, '⌋'],
+    \ ['right)'		, ')'],
+    \ ['right]'		, ']'],
+    \ ['right\\}'	, '}'],
+    \ ['rightarrow'	, '⟶'],
+    \ ['Rightarrow'	, '⟹'],
+    \ ['rightarrowtail'	, '↣'],
+    \ ['rightleftharpoons', '⇌'],
+    \ ['rightsquigarrow', '↝'],
+    \ ['rightthreetimes', '⋌'],
+    \ ['risingdotseq'	, '≓'],
+    \ ['rmoustache'     , '╮'],
+    \ ['rtimes'		, '⋊'],
+    \ ['S'	        , '§'],
+    \ ['searrow'	, '↘'],
+    \ ['setminus'	, '∖'],
+    \ ['sharp'		, '♯'],
+    \ ['sim'		, '∼'],
+    \ ['simeq'		, '⋍'],
+    \ ['smile'		, '‿'],
+    \ ['spadesuit'	, '♠'],
+    \ ['sphericalangle'	, '∢'],
+    \ ['sqcap'		, '⊓'],
+    \ ['sqcup'		, '⊔'],
+    \ ['sqsubset'	, '⊏'],
+    \ ['sqsubseteq'	, '⊑'],
+    \ ['sqsupset'	, '⊐'],
+    \ ['sqsupseteq'	, '⊒'],
+    \ ['star'		, '✫'],
+    \ ['subset'		, '⊂'],
+    \ ['Subset'		, '⋐'],
+    \ ['subseteq'	, '⊆'],
+    \ ['subseteqq'	, '⫅'],
+    \ ['subsetneq'	, '⊊'],
+    \ ['subsetneqq'	, '⫋'],
+    \ ['succ'		, '≻'],
+    \ ['succapprox'	, '⪸'],
+    \ ['succcurlyeq'	, '≽'],
+    \ ['succeq'		, '⪰'],
+    \ ['succnapprox'	, '⪺'],
+    \ ['succneqq'	, '⪶'],
+    \ ['succsim'	, '≿'],
+    \ ['sum'		, '∑'],
+    \ ['supset'		, '⊃'],
+    \ ['Supset'		, '⋑'],
+    \ ['supseteq'	, '⊇'],
+    \ ['supseteqq'	, '⫆'],
+    \ ['supsetneq'	, '⊋'],
+    \ ['supsetneqq'	, '⫌'],
+    \ ['surd'		, '√'],
+    \ ['swarrow'	, '↙'],
+    \ ['therefore'	, '∴'],
+    \ ['times'		, '×'],
+    \ ['to'		, '→'],
+    \ ['top'		, '⊤'],
+    \ ['triangle'	, '∆'],
+    \ ['triangleleft'	, '⊲'],
+    \ ['trianglelefteq'	, '⊴'],
+    \ ['triangleq'	, '≜'],
+    \ ['triangleright'	, '⊳'],
+    \ ['trianglerighteq', '⊵'],
+    \ ['twoheadleftarrow', '↞'],
+    \ ['twoheadrightarrow', '↠'],
+    \ ['uparrow'	, '↑'],
+    \ ['Uparrow'	, '⇑'],
+    \ ['updownarrow'	, '↕'],
+    \ ['Updownarrow'	, '⇕'],
+    \ ['varnothing'	, '∅'],
+    \ ['vartriangle'	, '∆'],
+    \ ['vdash'		, '⊢'],
+    \ ['vDash'		, '⊨'],
+    \ ['Vdash'		, '⊩'],
+    \ ['vdots'		, '⋮'],
+    \ ['vee'		, '∨'],
+    \ ['veebar'		, '⊻'],
+    \ ['Vvdash'		, '⊪'],
+    \ ['wedge'		, '∧'],
+    \ ['wp'		, '℘'],
+    \ ['wr'		, '≀']]
+"    \ ['jmath'		, 'X']
+"    \ ['uminus'	, 'X']
+"    \ ['uplus'		, 'X']
+  for texmath in s:texMathList
+   if texmath[0] =~ '\w$'
+    exe "syn match texMathSymbol '\\\\".texmath[0]."\\>' contained conceal cchar=".texmath[1]
+   else
+    exe "syn match texMathSymbol '\\\\".texmath[0]."' contained conceal cchar=".texmath[1]
+   endif
+  endfor
+
+  if &ambw == "double"
+   syn match texMathSymbol '\\gg\>'			contained conceal cchar=≫
+   syn match texMathSymbol '\\ll\>'			contained conceal cchar=≪
+  else
+   syn match texMathSymbol '\\gg\>'			contained conceal cchar=⟫
+   syn match texMathSymbol '\\ll\>'			contained conceal cchar=⟪
+  endif
+
+  syn match texMathSymbol '\\hat{a}' contained conceal cchar=â
+  syn match texMathSymbol '\\hat{A}' contained conceal cchar=Â
+  syn match texMathSymbol '\\hat{c}' contained conceal cchar=ĉ
+  syn match texMathSymbol '\\hat{C}' contained conceal cchar=Ĉ
+  syn match texMathSymbol '\\hat{e}' contained conceal cchar=ê
+  syn match texMathSymbol '\\hat{E}' contained conceal cchar=Ê
+  syn match texMathSymbol '\\hat{g}' contained conceal cchar=ĝ
+  syn match texMathSymbol '\\hat{G}' contained conceal cchar=Ĝ
+  syn match texMathSymbol '\\hat{i}' contained conceal cchar=î
+  syn match texMathSymbol '\\hat{I}' contained conceal cchar=Î
+  syn match texMathSymbol '\\hat{o}' contained conceal cchar=ô
+  syn match texMathSymbol '\\hat{O}' contained conceal cchar=Ô
+  syn match texMathSymbol '\\hat{s}' contained conceal cchar=ŝ
+  syn match texMathSymbol '\\hat{S}' contained conceal cchar=Ŝ
+  syn match texMathSymbol '\\hat{u}' contained conceal cchar=û
+  syn match texMathSymbol '\\hat{U}' contained conceal cchar=Û
+  syn match texMathSymbol '\\hat{w}' contained conceal cchar=ŵ
+  syn match texMathSymbol '\\hat{W}' contained conceal cchar=Ŵ
+  syn match texMathSymbol '\\hat{y}' contained conceal cchar=ŷ
+  syn match texMathSymbol '\\hat{Y}' contained conceal cchar=Ŷ
+ endif
+
+ " Greek {{{2
+ if s:tex_conceal =~ 'g'
+  fun! s:Greek(group,pat,cchar)
+    exe 'syn match '.a:group." '".a:pat."' contained conceal cchar=".a:cchar
+  endfun
+  call s:Greek('texGreek','\\alpha\>'		,'α')
+  call s:Greek('texGreek','\\beta\>'		,'β')
+  call s:Greek('texGreek','\\gamma\>'		,'γ')
+  call s:Greek('texGreek','\\delta\>'		,'δ')
+  call s:Greek('texGreek','\\epsilon\>'		,'ϵ')
+  call s:Greek('texGreek','\\varepsilon\>'	,'ε')
+  call s:Greek('texGreek','\\zeta\>'		,'ζ')
+  call s:Greek('texGreek','\\eta\>'		,'η')
+  call s:Greek('texGreek','\\theta\>'		,'θ')
+  call s:Greek('texGreek','\\vartheta\>'		,'ϑ')
+  call s:Greek('texGreek','\\kappa\>'		,'κ')
+  call s:Greek('texGreek','\\lambda\>'		,'λ')
+  call s:Greek('texGreek','\\mu\>'		,'μ')
+  call s:Greek('texGreek','\\nu\>'		,'ν')
+  call s:Greek('texGreek','\\xi\>'		,'ξ')
+  call s:Greek('texGreek','\\pi\>'		,'π')
+  call s:Greek('texGreek','\\varpi\>'		,'ϖ')
+  call s:Greek('texGreek','\\rho\>'		,'ρ')
+  call s:Greek('texGreek','\\varrho\>'		,'ϱ')
+  call s:Greek('texGreek','\\sigma\>'		,'σ')
+  call s:Greek('texGreek','\\varsigma\>'		,'ς')
+  call s:Greek('texGreek','\\tau\>'		,'τ')
+  call s:Greek('texGreek','\\upsilon\>'		,'υ')
+  call s:Greek('texGreek','\\phi\>'		,'φ')
+  call s:Greek('texGreek','\\varphi\>'		,'ϕ')
+  call s:Greek('texGreek','\\chi\>'		,'χ')
+  call s:Greek('texGreek','\\psi\>'		,'ψ')
+  call s:Greek('texGreek','\\omega\>'		,'ω')
+  call s:Greek('texGreek','\\Gamma\>'		,'Γ')
+  call s:Greek('texGreek','\\Delta\>'		,'Δ')
+  call s:Greek('texGreek','\\Theta\>'		,'Θ')
+  call s:Greek('texGreek','\\Lambda\>'		,'Λ')
+  call s:Greek('texGreek','\\Xi\>'		,'Χ')
+  call s:Greek('texGreek','\\Pi\>'		,'Π')
+  call s:Greek('texGreek','\\Sigma\>'		,'Σ')
+  call s:Greek('texGreek','\\Upsilon\>'		,'Υ')
+  call s:Greek('texGreek','\\Phi\>'		,'Φ')
+  call s:Greek('texGreek','\\Psi\>'		,'Ψ')
+  call s:Greek('texGreek','\\Omega\>'		,'Ω')
+  delfun s:Greek
+ endif
+
+ " Superscripts/Subscripts {{{2
+ if s:tex_conceal =~ 's'
+  if s:tex_fast =~ 's'
+   syn region texSuperscript	matchgroup=Delimiter start='\^{'	skip="\\\\\|\\[{}]" end='}'	contained concealends contains=texSpecialChar,texSuperscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
+   syn region texSubscript	matchgroup=Delimiter start='_{'		skip="\\\\\|\\[{}]" end='}'	contained concealends contains=texSpecialChar,texSubscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
+  endif
+  fun! s:SuperSub(group,leader,pat,cchar)
+    exe 'syn match '.a:group." '".a:leader.a:pat."' contained conceal cchar=".a:cchar
+    exe 'syn match '.a:group."s '".a:pat."' contained conceal cchar=".a:cchar.' nextgroup='.a:group.'s'
+  endfun
+  call s:SuperSub('texSuperscript','\^','0','⁰')
+  call s:SuperSub('texSuperscript','\^','1','¹')
+  call s:SuperSub('texSuperscript','\^','2','²')
+  call s:SuperSub('texSuperscript','\^','3','³')
+  call s:SuperSub('texSuperscript','\^','4','⁴')
+  call s:SuperSub('texSuperscript','\^','5','⁵')
+  call s:SuperSub('texSuperscript','\^','6','⁶')
+  call s:SuperSub('texSuperscript','\^','7','⁷')
+  call s:SuperSub('texSuperscript','\^','8','⁸')
+  call s:SuperSub('texSuperscript','\^','9','⁹')
+  call s:SuperSub('texSuperscript','\^','a','ᵃ')
+  call s:SuperSub('texSuperscript','\^','b','ᵇ')
+  call s:SuperSub('texSuperscript','\^','c','ᶜ')
+  call s:SuperSub('texSuperscript','\^','d','ᵈ')
+  call s:SuperSub('texSuperscript','\^','e','ᵉ')
+  call s:SuperSub('texSuperscript','\^','f','ᶠ')
+  call s:SuperSub('texSuperscript','\^','g','ᵍ')
+  call s:SuperSub('texSuperscript','\^','h','ʰ')
+  call s:SuperSub('texSuperscript','\^','i','ⁱ')
+  call s:SuperSub('texSuperscript','\^','j','ʲ')
+  call s:SuperSub('texSuperscript','\^','k','ᵏ')
+  call s:SuperSub('texSuperscript','\^','l','ˡ')
+  call s:SuperSub('texSuperscript','\^','m','ᵐ')
+  call s:SuperSub('texSuperscript','\^','n','ⁿ')
+  call s:SuperSub('texSuperscript','\^','o','ᵒ')
+  call s:SuperSub('texSuperscript','\^','p','ᵖ')
+  call s:SuperSub('texSuperscript','\^','r','ʳ')
+  call s:SuperSub('texSuperscript','\^','s','ˢ')
+  call s:SuperSub('texSuperscript','\^','t','ᵗ')
+  call s:SuperSub('texSuperscript','\^','u','ᵘ')
+  call s:SuperSub('texSuperscript','\^','v','ᵛ')
+  call s:SuperSub('texSuperscript','\^','w','ʷ')
+  call s:SuperSub('texSuperscript','\^','x','ˣ')
+  call s:SuperSub('texSuperscript','\^','y','ʸ')
+  call s:SuperSub('texSuperscript','\^','z','ᶻ')
+  call s:SuperSub('texSuperscript','\^','A','ᴬ')
+  call s:SuperSub('texSuperscript','\^','B','ᴮ')
+  call s:SuperSub('texSuperscript','\^','D','ᴰ')
+  call s:SuperSub('texSuperscript','\^','E','ᴱ')
+  call s:SuperSub('texSuperscript','\^','G','ᴳ')
+  call s:SuperSub('texSuperscript','\^','H','ᴴ')
+  call s:SuperSub('texSuperscript','\^','I','ᴵ')
+  call s:SuperSub('texSuperscript','\^','J','ᴶ')
+  call s:SuperSub('texSuperscript','\^','K','ᴷ')
+  call s:SuperSub('texSuperscript','\^','L','ᴸ')
+  call s:SuperSub('texSuperscript','\^','M','ᴹ')
+  call s:SuperSub('texSuperscript','\^','N','ᴺ')
+  call s:SuperSub('texSuperscript','\^','O','ᴼ')
+  call s:SuperSub('texSuperscript','\^','P','ᴾ')
+  call s:SuperSub('texSuperscript','\^','R','ᴿ')
+  call s:SuperSub('texSuperscript','\^','T','ᵀ')
+  call s:SuperSub('texSuperscript','\^','U','ᵁ')
+  call s:SuperSub('texSuperscript','\^','W','ᵂ')
+  call s:SuperSub('texSuperscript','\^',',','︐')
+  call s:SuperSub('texSuperscript','\^',':','︓')
+  call s:SuperSub('texSuperscript','\^',';','︔')
+  call s:SuperSub('texSuperscript','\^','+','⁺')
+  call s:SuperSub('texSuperscript','\^','-','⁻')
+  call s:SuperSub('texSuperscript','\^','<','˂')
+  call s:SuperSub('texSuperscript','\^','>','˃')
+  call s:SuperSub('texSuperscript','\^','/','ˊ')
+  call s:SuperSub('texSuperscript','\^','(','⁽')
+  call s:SuperSub('texSuperscript','\^',')','⁾')
+  call s:SuperSub('texSuperscript','\^','\.','˙')
+  call s:SuperSub('texSuperscript','\^','=','˭')
+  call s:SuperSub('texSubscript','_','0','₀')
+  call s:SuperSub('texSubscript','_','1','₁')
+  call s:SuperSub('texSubscript','_','2','₂')
+  call s:SuperSub('texSubscript','_','3','₃')
+  call s:SuperSub('texSubscript','_','4','₄')
+  call s:SuperSub('texSubscript','_','5','₅')
+  call s:SuperSub('texSubscript','_','6','₆')
+  call s:SuperSub('texSubscript','_','7','₇')
+  call s:SuperSub('texSubscript','_','8','₈')
+  call s:SuperSub('texSubscript','_','9','₉')
+  call s:SuperSub('texSubscript','_','a','ₐ')
+  call s:SuperSub('texSubscript','_','e','ₑ')
+  call s:SuperSub('texSubscript','_','i','ᵢ')
+  call s:SuperSub('texSubscript','_','o','ₒ')
+  call s:SuperSub('texSubscript','_','u','ᵤ')
+  call s:SuperSub('texSubscript','_',',','︐')
+  call s:SuperSub('texSubscript','_','+','₊')
+  call s:SuperSub('texSubscript','_','-','₋')
+  call s:SuperSub('texSubscript','_','/','ˏ')
+  call s:SuperSub('texSubscript','_','(','₍')
+  call s:SuperSub('texSubscript','_',')','₎')
+  call s:SuperSub('texSubscript','_','\.','‸')
+  call s:SuperSub('texSubscript','_','r','ᵣ')
+  call s:SuperSub('texSubscript','_','v','ᵥ')
+  call s:SuperSub('texSubscript','_','x','ₓ')
+  call s:SuperSub('texSubscript','_','\\beta\>' ,'ᵦ')
+  call s:SuperSub('texSubscript','_','\\delta\>','ᵨ')
+  call s:SuperSub('texSubscript','_','\\phi\>'  ,'ᵩ')
+  call s:SuperSub('texSubscript','_','\\gamma\>','ᵧ')
+  call s:SuperSub('texSubscript','_','\\chi\>'  ,'ᵪ')
+  delfun s:SuperSub
+ endif
+
+ " Accented characters: {{{2
+ if s:tex_conceal =~ 'a'
+  if b:tex_stylish
+   syn match texAccent		"\\[bcdvuH][^a-zA-Z@]"me=e-1
+   syn match texLigature		"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)[^a-zA-Z@]"me=e-1
+  else
+   fun! s:Accents(chr,...)
+     let i= 1
+     for accent in ["`","\\'","^",'"','\~','\.','=',"c","H","k","r","u","v"]
+      if i > a:0
+       break
+      endif
+      if strlen(a:{i}) == 0 || a:{i} == ' ' || a:{i} == '?'
+       let i= i + 1
+       continue
+      endif
+      if accent =~ '\a'
+       exe "syn match texAccent '".'\\'.accent.'\(\s*{'.a:chr.'}\|\s\+'.a:chr.'\)'."' conceal cchar=".a:{i}
+      else
+       exe "syn match texAccent '".'\\'.accent.'\s*\({'.a:chr.'}\|'.a:chr.'\)'."' conceal cchar=".a:{i}
+      endif
+      let i= i + 1
+     endfor
+   endfun
+   "                    \`  \'  \^  \"  \~  \.  \=  \c  \H  \k  \r  \u  \v
+   call   s:Accents('a','à','á','â','ä','ã','ȧ','ā',' ',' ','ą','å','ă','ǎ')
+   call   s:Accents('A','À','Á','Â','Ä','Ã','Ȧ','Ā',' ',' ','Ą','Å','Ă','Ǎ')
+   call   s:Accents('c',' ','ć','ĉ',' ',' ','ċ',' ','ç',' ',' ',' ',' ','č')
+   call   s:Accents('C',' ','Ć','Ĉ',' ',' ','Ċ',' ','Ç',' ',' ',' ',' ','Č')
+   call   s:Accents('d',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ď')
+   call   s:Accents('D',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','Ď')
+   call   s:Accents('e','è','é','ê','ë','ẽ','ė','ē','ȩ',' ','ę',' ','ĕ','ě')
+   call   s:Accents('E','È','É','Ê','Ë','Ẽ','Ė','Ē','Ȩ',' ','Ę',' ','Ĕ','Ě')
+   call   s:Accents('g',' ','ǵ','ĝ',' ',' ','ġ',' ','ģ',' ',' ',' ','ğ','ǧ')
+   call   s:Accents('G',' ','Ǵ','Ĝ',' ',' ','Ġ',' ','Ģ',' ',' ',' ','Ğ','Ǧ')
+   call   s:Accents('h',' ',' ','ĥ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ȟ')
+   call   s:Accents('H',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','Ȟ')
+   call   s:Accents('i','ì','í','î','ï','ĩ','į','ī',' ',' ','į',' ','ĭ','ǐ')
+   call   s:Accents('I','Ì','Í','Î','Ï','Ĩ','İ','Ī',' ',' ','Į',' ','Ĭ','Ǐ')
+   call   s:Accents('J',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ǰ')
+   call   s:Accents('k',' ',' ',' ',' ',' ',' ',' ','ķ',' ',' ',' ',' ','ǩ')
+   call   s:Accents('K',' ',' ',' ',' ',' ',' ',' ','Ķ',' ',' ',' ',' ','Ǩ')
+   call   s:Accents('l',' ','ĺ','ľ',' ',' ',' ',' ','ļ',' ',' ',' ',' ','ľ')
+   call   s:Accents('L',' ','Ĺ','Ľ',' ',' ',' ',' ','Ļ',' ',' ',' ',' ','Ľ')
+   call   s:Accents('n',' ','ń',' ',' ','ñ',' ',' ','ņ',' ',' ',' ',' ','ň')
+   call   s:Accents('N',' ','Ń',' ',' ','Ñ',' ',' ','Ņ',' ',' ',' ',' ','Ň')
+   call   s:Accents('o','ò','ó','ô','ö','õ','ȯ','ō',' ','ő','ǫ',' ','ŏ','ǒ')
+   call   s:Accents('O','Ò','Ó','Ô','Ö','Õ','Ȯ','Ō',' ','Ő','Ǫ',' ','Ŏ','Ǒ')
+   call   s:Accents('r',' ','ŕ',' ',' ',' ',' ',' ','ŗ',' ',' ',' ',' ','ř')
+   call   s:Accents('R',' ','Ŕ',' ',' ',' ',' ',' ','Ŗ',' ',' ',' ',' ','Ř')
+   call   s:Accents('s',' ','ś','ŝ',' ',' ',' ',' ','ş',' ','ȿ',' ',' ','š')
+   call   s:Accents('S',' ','Ś','Ŝ',' ',' ',' ',' ','Ş',' ',' ',' ',' ','Š')
+   call   s:Accents('t',' ',' ',' ',' ',' ',' ',' ','ţ',' ',' ',' ',' ','ť')
+   call   s:Accents('T',' ',' ',' ',' ',' ',' ',' ','Ţ',' ',' ',' ',' ','Ť')
+   call   s:Accents('u','ù','ú','û','ü','ũ',' ','ū',' ','ű','ų','ů','ŭ','ǔ')
+   call   s:Accents('U','Ù','Ú','Û','Ü','Ũ',' ','Ū',' ','Ű','Ų','Ů','Ŭ','Ǔ')
+   call   s:Accents('w',' ',' ','ŵ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ')
+   call   s:Accents('W',' ',' ','Ŵ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ')
+   call   s:Accents('y','ỳ','ý','ŷ','ÿ','ỹ',' ',' ',' ',' ',' ',' ',' ',' ')
+   call   s:Accents('Y','Ỳ','Ý','Ŷ','Ÿ','Ỹ',' ',' ',' ',' ',' ',' ',' ',' ')
+   call   s:Accents('z',' ','ź',' ',' ',' ','ż',' ',' ',' ',' ',' ',' ','ž')
+   call   s:Accents('Z',' ','Ź',' ',' ',' ','Ż',' ',' ',' ',' ',' ',' ','Ž')
+   call s:Accents('\\i','ì','í','î','ï','ĩ','į',' ',' ',' ',' ',' ','ĭ',' ')
+   "                    \`  \'  \^  \"  \~  \.  \=  \c  \H  \k  \r  \u  \v
+   delfun s:Accents
+   syn match texAccent   '\\aa\>'	conceal cchar=å
+   syn match texAccent   '\\AA\>'	conceal cchar=Å
+   syn match texAccent	'\\o\>'		conceal cchar=ø
+   syn match texAccent	'\\O\>'		conceal cchar=Ø
+   syn match texLigature	'\\AE\>'	conceal cchar=Æ
+   syn match texLigature	'\\ae\>'	conceal cchar=æ
+   syn match texLigature	'\\oe\>'	conceal cchar=œ
+   syn match texLigature	'\\OE\>'	conceal cchar=Œ
+   syn match texLigature	'\\ss\>'	conceal cchar=ß
+  endif
+ endif
+endif
+
+" ---------------------------------------------------------------------
+" LaTeX synchronization: {{{1
+syn sync maxlines=200
+syn sync minlines=50
+
+syn  sync match texSyncStop			groupthere NONE		"%stopzone\>"
+
+" Synchronization: {{{1
+" The $..$ and $$..$$ make for impossible sync patterns
+" (one can't tell if a "$$" starts or stops a math zone by itself)
+" The following grouptheres coupled with minlines above
+" help improve the odds of good syncing.
+if !exists("tex_no_math")
+ syn sync match texSyncMathZoneA		groupthere NONE		"\\end{abstract}"
+ syn sync match texSyncMathZoneA		groupthere NONE		"\\end{center}"
+ syn sync match texSyncMathZoneA		groupthere NONE		"\\end{description}"
+ syn sync match texSyncMathZoneA		groupthere NONE		"\\end{enumerate}"
+ syn sync match texSyncMathZoneA		groupthere NONE		"\\end{itemize}"
+ syn sync match texSyncMathZoneA		groupthere NONE		"\\end{table}"
+ syn sync match texSyncMathZoneA		groupthere NONE		"\\end{tabular}"
+ syn sync match texSyncMathZoneA		groupthere NONE		"\\\(sub\)*section\>"
+endif
+
+" ---------------------------------------------------------------------
+" Highlighting: {{{1
+if did_tex_syntax_inits == 1
+ let did_tex_syntax_inits= 2
+  " TeX highlighting groups which should share similar highlighting
+  if !exists("s:tex_no_error")
+   if !exists("g:tex_no_math")
+    HiLink texBadMath		texError
+    HiLink texMathDelimBad	texError
+    HiLink texMathError		texError
+    if !b:tex_stylish
+      HiLink texOnlyMath	texError
+    endif
+   endif
+   HiLink texError		Error
+  endif
+
+  hi texBoldStyle		gui=bold	cterm=bold
+  hi texItalStyle		gui=italic	cterm=italic
+  hi texBoldItalStyle		gui=bold,italic cterm=bold,italic
+  hi texItalBoldStyle		gui=bold,italic cterm=bold,italic
+  HiLink texCite		texRefZone
+  HiLink texDefCmd		texDef
+  HiLink texDefName		texDef
+  HiLink texDocType		texCmdName
+  HiLink texDocTypeArgs		texCmdArgs
+  HiLink texInputFileOpt	texCmdArgs
+  HiLink texInputCurlies	texDelimiter
+  HiLink texLigature		texSpecialChar
+  if !exists("tex_no_math")
+   HiLink texMathDelimSet1	texMathDelim
+   HiLink texMathDelimSet2	texMathDelim
+   HiLink texMathDelimKey	texMathDelim
+   HiLink texMathMatcher	texMath
+   HiLink texAccent		texStatement
+   HiLink texGreek		texStatement
+   HiLink texSuperscript	texStatement
+   HiLink texSubscript		texStatement
+   HiLink texSuperscripts 	texSuperscript
+   HiLink texSubscripts 	texSubscript
+   HiLink texMathSymbol		texStatement
+   HiLink texMathZoneV		texMath
+   HiLink texMathZoneW		texMath
+   HiLink texMathZoneX		texMath
+   HiLink texMathZoneY		texMath
+   HiLink texMathZoneV		texMath
+   HiLink texMathZoneZ		texMath
+  endif
+  HiLink texBeginEnd		texCmdName
+  HiLink texBeginEndName	texSection
+  HiLink texSpaceCode		texStatement
+  HiLink texStyleStatement	texStatement
+  HiLink texTypeSize		texType
+  HiLink texTypeStyle		texType
+
+   " Basic TeX highlighting groups
+  HiLink texCmdArgs		Number
+  HiLink texCmdName		Statement
+  HiLink texComment		Comment
+  HiLink texDef			Statement
+  HiLink texDefParm		Special
+  HiLink texDelimiter		Delimiter
+  HiLink texInput		Special
+  HiLink texInputFile		Special
+  HiLink texLength		Number
+  HiLink texMath		Special
+  HiLink texMathDelim		Statement
+  HiLink texMathOper		Operator
+  HiLink texNewCmd		Statement
+  HiLink texNewEnv		Statement
+  HiLink texOption		Number
+  HiLink texRefZone		Special
+  HiLink texSection		PreCondit
+  HiLink texSpaceCodeChar	Special
+  HiLink texSpecialChar		SpecialChar
+  HiLink texStatement		Statement
+  HiLink texString		String
+  HiLink texTodo		Todo
+  HiLink texType		Type
+  HiLink texZone		PreCondit
+
+  delcommand HiLink
+endif
+
+" Cleanup: {{{1
+unlet s:extfname
+let   b:current_syntax = "tex"
+let &cpo               = s:keepcpo
+unlet s:keepcpo
+" vim: ts=8 fdm=marker