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'		, '∘'],
+