xref: /vim-8.2.3635/runtime/syntax/tex.vim (revision 690afe1f) 
1" Vim syntax file
2" Language:	TeX
3" Maintainer:	Charles E. Campbell <[email protected]>
4" Last Change:	Dec 07, 2016
5" Version:	102
6" URL:		http://www.drchip.org/astronaut/vim/index.html#SYNTAX_TEX
7"
8" Notes: {{{1
9"
10" 1. If you have a \begin{verbatim} that appears to overrun its boundaries,
11"    use %stopzone.
12"
13" 2. Run-on equations ($..$ and $$..$$, particularly) can also be stopped
14"    by suitable use of %stopzone.
15"
16" 3. If you have a slow computer, you may wish to modify
17"
18"	syn sync maxlines=200
19"	syn sync minlines=50
20"
21"    to values that are more to your liking.
22"
23" 4. There is no match-syncing for $...$ and $$...$$; hence large
24"    equation blocks constructed that way may exhibit syncing problems.
25"    (there's no difference between begin/end patterns)
26"
27" 5. If you have the variable "g:tex_no_error" defined then none of the
28"    lexical error-checking will be done.
29"
30"    ie. let g:tex_no_error=1
31"
32" 6. Please see  :help latex-syntax  for information on
33"      syntax folding           :help tex-folding
34"      spell checking           :help tex-nospell
35"      commands and mathzones   :help tex-runon
36"      new command highlighting :help tex-morecommands
37"      error highlighting       :help tex-error
38"      new math groups          :help tex-math
39"      new styles               :help tex-style
40"      using conceal mode       :help tex-conceal
41
42" Version Clears: {{{1
43" quit when a syntax file was already loaded
44if exists("b:current_syntax")
45  finish
46endif
47let s:keepcpo= &cpo
48set cpo&vim
49scriptencoding utf-8
50
51" by default, enable all region-based highlighting
52let s:tex_fast= "bcmMprsSvV"
53if exists("g:tex_fast")
54 if type(g:tex_fast) != 1
55  " g:tex_fast exists and is not a string, so
56  " turn off all optional region-based highighting
57  let s:tex_fast= ""
58 else
59  let s:tex_fast= g:tex_fast
60 endif
61endif
62
63" let user determine which classes of concealment will be supported
64"   a=accents/ligatures d=delimiters m=math symbols  g=Greek  s=superscripts/subscripts
65if !exists("g:tex_conceal")
66 let s:tex_conceal= 'abdmgsS'
67else
68 let s:tex_conceal= g:tex_conceal
69endif
70if !exists("g:tex_superscripts")
71 let s:tex_superscripts= '[0-9a-zA-W.,:;+-<>/()=]'
72else
73 let s:tex_superscripts= g:tex_superscripts
74endif
75if !exists("g:tex_subscripts")
76 let s:tex_subscripts= '[0-9aehijklmnoprstuvx,+-/().]'
77else
78 let s:tex_subscripts= g:tex_subscripts
79endif
80
81" Determine whether or not to use "*.sty" mode {{{1
82" The user may override the normal determination by setting
83"   g:tex_stylish to 1      (for    "*.sty" mode)
84"    or to           0 else (normal "*.tex" mode)
85" or on a buffer-by-buffer basis with b:tex_stylish
86let s:extfname=expand("%:e")
87if exists("g:tex_stylish")
88 let b:tex_stylish= g:tex_stylish
89elseif !exists("b:tex_stylish")
90 if s:extfname == "sty" || s:extfname == "cls" || s:extfname == "clo" || s:extfname == "dtx" || s:extfname == "ltx"
91  let b:tex_stylish= 1
92 else
93  let b:tex_stylish= 0
94 endif
95endif
96
97" handle folding {{{1
98if !exists("g:tex_fold_enabled")
99 let s:tex_fold_enabled= 0
100elseif g:tex_fold_enabled && !has("folding")
101 let s:tex_fold_enabled= 0
102 echomsg "Ignoring g:tex_fold_enabled=".g:tex_fold_enabled."; need to re-compile vim for +fold support"
103else
104 let s:tex_fold_enabled= 1
105endif
106if s:tex_fold_enabled && &fdm == "manual"
107 setl fdm=syntax
108endif
109if s:tex_fold_enabled && has("folding")
110 com! -nargs=* TexFold <args> fold
111else
112 com! -nargs=* TexFold <args>
113endif
114
115" (La)TeX keywords: uses the characters 0-9,a-z,A-Z,192-255 only... {{{1
116" but _ is the only one that causes problems.
117" One may override this iskeyword setting by providing
118" g:tex_isk
119if exists("g:tex_isk")
120 if b:tex_stylish && g:tex_isk !~ '@'
121  let b:tex_isk= '@,'.g:tex_isk
122 else
123  let b:tex_isk= g:tex_isk
124 endif
125elseif b:tex_stylish
126 let b:tex_isk="@,48-57,a-z,A-Z,192-255"
127else
128 let b:tex_isk="48-57,a-z,A-Z,192-255"
129endif
130if v:version > 704 || (v:version == 704 && has("patch-7.4.1142"))
131 exe "syn iskeyword ".b:tex_isk
132else
133 exe "setl isk=".b:tex_isk
134endif
135if exists("g:tex_no_error") && g:tex_no_error
136 let s:tex_no_error= 1
137else
138 let s:tex_no_error= 0
139endif
140if exists("g:tex_comment_nospell") && g:tex_comment_nospell
141 let s:tex_comment_nospell= 1
142else
143 let s:tex_comment_nospell= 0
144endif
145if exists("g:tex_nospell") && g:tex_nospell
146 let s:tex_nospell = 1
147else
148 let s:tex_nospell = 0
149endif
150
151" Clusters: {{{1
152" --------
153syn cluster texCmdGroup			contains=texCmdBody,texComment,texDefParm,texDelimiter,texDocType,texInput,texLength,texLigature,texMathDelim,texMathOper,texNewCmd,texNewEnv,texRefZone,texSection,texBeginEnd,texBeginEndName,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,@texMathZones
154if !s:tex_no_error
155 syn cluster texCmdGroup		add=texMathError
156endif
157syn cluster texEnvGroup			contains=texMatcher,texMathDelim,texSpecialChar,texStatement
158syn 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
159syn 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
160syn 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
161if !s:tex_nospell
162 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
163 syn cluster texMatchNMGroup		contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMatcherNM,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,@Spell
164 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
165else
166 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
167 syn cluster texMatchNMGroup		contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMatcherNM,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption
168 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
169endif
170syn cluster texPreambleMatchGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMatcherNM,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTitle,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,texMathZoneZ
171syn cluster texRefGroup			contains=texMatcher,texComment,texDelimiter
172if !exists("g:tex_no_math")
173 syn cluster texPreambleMatchGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMatcherNM,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTitle,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,texMathZoneZ
174 syn cluster texMathZones		contains=texMathZoneV,texMathZoneW,texMathZoneX,texMathZoneY,texMathZoneZ
175 syn cluster texMatchGroup		add=@texMathZones
176 syn cluster texMathDelimGroup		contains=texMathDelimBad,texMathDelimKey,texMathDelimSet1,texMathDelimSet2
177 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
178 syn cluster texMathZoneGroup		contains=texComment,texDelimiter,texLength,texMathDelim,texMathMatcher,texMathOper,texMathSymbol,texMathText,texRefZone,texSpecialChar,texStatement,texTypeSize,texTypeStyle
179 if !s:tex_no_error
180  syn cluster texMathMatchGroup		add=texMathError
181  syn cluster texMathZoneGroup		add=texMathError
182 endif
183 syn cluster texMathZoneGroup		add=@NoSpell
184 " following used in the \part \chapter \section \subsection \subsubsection
185 " \paragraph \subparagraph \author \title highlighting
186 syn cluster texDocGroup		contains=texPartZone,@texPartGroup
187 syn cluster texPartGroup		contains=texChapterZone,texSectionZone,texParaZone
188 syn cluster texChapterGroup		contains=texSectionZone,texParaZone
189 syn cluster texSectionGroup		contains=texSubSectionZone,texParaZone
190 syn cluster texSubSectionGroup		contains=texSubSubSectionZone,texParaZone
191 syn cluster texSubSubSectionGroup	contains=texParaZone
192 syn cluster texParaGroup		contains=texSubParaZone
193 if has("conceal") && &enc == 'utf-8'
194  syn cluster texMathZoneGroup		add=texGreek,texSuperscript,texSubscript,texMathSymbol
195  syn cluster texMathMatchGroup		add=texGreek,texSuperscript,texSubscript,texMathSymbol
196 endif
197endif
198
199" Try to flag {} and () mismatches: {{{1
200if s:tex_fast =~# 'm'
201  if !s:tex_no_error
202   syn region texMatcher	matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"			transparent contains=@texMatchGroup,texError
203   syn region texMatcher	matchgroup=Delimiter start="\["				end="]"			transparent contains=@texMatchGroup,texError,@NoSpell
204   syn region texMatcherNM	matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"			transparent contains=@texMatchNMGroup,texError
205   syn region texMatcherNM	matchgroup=Delimiter start="\["				end="]"			transparent contains=@texMatchNMGroup,texError,@NoSpell
206  else
207   syn region texMatcher	matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"			transparent contains=@texMatchGroup
208   syn region texMatcher	matchgroup=Delimiter start="\["				end="]"			transparent contains=@texMatchGroup
209   syn region texMatcherNM	matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"			transparent contains=@texMatchNMGroup
210   syn region texMatcherNM	matchgroup=Delimiter start="\["				end="]"			transparent contains=@texMatchNMGroup
211  endif
212  if !s:tex_nospell
213   syn region texParen		start="("	end=")"								transparent contains=@texMatchGroup,@Spell
214  else
215   syn region texParen		start="("	end=")"								transparent contains=@texMatchGroup
216  endif
217endif
218if !s:tex_no_error
219 syn match  texError		"[}\])]"
220endif
221if s:tex_fast =~# 'M'
222  if !exists("g:tex_no_math")
223   if !s:tex_no_error
224    syn match  texMathError	"}"	contained
225   endif
226   syn region texMathMatcher	matchgroup=Delimiter	start="{"          skip="\%(\\\\\)*\\}"     end="}" end="%stopzone\>"	contained contains=@texMathMatchGroup
227  endif
228endif
229
230" TeX/LaTeX keywords: {{{1
231" Instead of trying to be All Knowing, I just match \..alphameric..
232" Note that *.tex files may not have "@" in their \commands
233if exists("g:tex_tex") || b:tex_stylish
234  syn match texStatement	"\\[a-zA-Z@]\+"
235else
236  syn match texStatement	"\\\a\+"
237  if !s:tex_no_error
238   syn match texError		"\\\a*@[a-zA-Z@]*"
239  endif
240endif
241
242" TeX/LaTeX delimiters: {{{1
243syn match texDelimiter		"&"
244syn match texDelimiter		"\\\\"
245
246" Tex/Latex Options: {{{1
247syn match texOption		"[^\\]\zs#\d\+\|^#\d\+"
248
249" texAccent (tnx to Karim Belabas) avoids annoying highlighting for accents: {{{1
250if b:tex_stylish
251  syn match texAccent		"\\[bcdvuH][^a-zA-Z@]"me=e-1
252  syn match texLigature		"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)[^a-zA-Z@]"me=e-1
253else
254  syn match texAccent		"\\[bcdvuH]\A"me=e-1
255  syn match texLigature		"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)\A"me=e-1
256endif
257syn match texAccent		"\\[bcdvuH]$"
258syn match texAccent		+\\[=^.\~"`']+
259syn match texAccent		+\\['=t'.c^ud"vb~Hr]{\a}+
260syn match texLigature		"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)$"
261
262" \begin{}/\end{} section markers: {{{1
263syn match  texBeginEnd		"\\begin\>\|\\end\>" nextgroup=texBeginEndName
264if s:tex_fast =~# 'm'
265  syn region texBeginEndName		matchgroup=Delimiter	start="{"		end="}"	contained	nextgroup=texBeginEndModifier	contains=texComment
266  syn region texBeginEndModifier	matchgroup=Delimiter	start="\["		end="]"	contained	contains=texComment,@texMathZones,@NoSpell
267endif
268
269" \documentclass, \documentstyle, \usepackage: {{{1
270syn match  texDocType		"\\documentclass\>\|\\documentstyle\>\|\\usepackage\>"	nextgroup=texBeginEndName,texDocTypeArgs
271if s:tex_fast =~# 'm'
272  syn region texDocTypeArgs	matchgroup=Delimiter start="\[" end="]"			contained	nextgroup=texBeginEndName	contains=texComment,@NoSpell
273endif
274
275" Preamble syntax-based folding support: {{{1
276if s:tex_fold_enabled && has("folding")
277 syn region texPreamble	transparent fold	start='\zs\\documentclass\>' end='\ze\\begin{document}'	contains=texStyle,@texPreambleMatchGroup
278endif
279
280" TeX input: {{{1
281syn match texInput		"\\input\s\+[a-zA-Z/.0-9_^]\+"hs=s+7				contains=texStatement
282syn match texInputFile		"\\include\(graphics\|list\)\=\(\[.\{-}\]\)\=\s*{.\{-}}"	contains=texStatement,texInputCurlies,texInputFileOpt
283syn match texInputFile		"\\\(epsfig\|input\|usepackage\)\s*\(\[.*\]\)\={.\{-}}"		contains=texStatement,texInputCurlies,texInputFileOpt
284syn match texInputCurlies	"[{}]"								contained
285if s:tex_fast =~# 'm'
286 syn region texInputFileOpt	matchgroup=Delimiter start="\[" end="\]"			contained	contains=texComment
287endif
288
289" Type Styles (LaTeX 2.09): {{{1
290syn match texTypeStyle		"\\rm\>"
291syn match texTypeStyle		"\\em\>"
292syn match texTypeStyle		"\\bf\>"
293syn match texTypeStyle		"\\it\>"
294syn match texTypeStyle		"\\sl\>"
295syn match texTypeStyle		"\\sf\>"
296syn match texTypeStyle		"\\sc\>"
297syn match texTypeStyle		"\\tt\>"
298
299" Type Styles: attributes, commands, families, etc (LaTeX2E): {{{1
300if s:tex_conceal !~# 'b'
301 syn match texTypeStyle		"\\textbf\>"
302 syn match texTypeStyle		"\\textit\>"
303endif
304syn match texTypeStyle		"\\textmd\>"
305syn match texTypeStyle		"\\textrm\>"
306syn match texTypeStyle		"\\textsc\>"
307syn match texTypeStyle		"\\textsf\>"
308syn match texTypeStyle		"\\textsl\>"
309syn match texTypeStyle		"\\texttt\>"
310syn match texTypeStyle		"\\textup\>"
311syn match texTypeStyle		"\\emph\>"
312
313syn match texTypeStyle		"\\mathbb\>"
314syn match texTypeStyle		"\\mathbf\>"
315syn match texTypeStyle		"\\mathcal\>"
316syn match texTypeStyle		"\\mathfrak\>"
317syn match texTypeStyle		"\\mathit\>"
318syn match texTypeStyle		"\\mathnormal\>"
319syn match texTypeStyle		"\\mathrm\>"
320syn match texTypeStyle		"\\mathsf\>"
321syn match texTypeStyle		"\\mathtt\>"
322
323syn match texTypeStyle		"\\rmfamily\>"
324syn match texTypeStyle		"\\sffamily\>"
325syn match texTypeStyle		"\\ttfamily\>"
326
327syn match texTypeStyle		"\\itshape\>"
328syn match texTypeStyle		"\\scshape\>"
329syn match texTypeStyle		"\\slshape\>"
330syn match texTypeStyle		"\\upshape\>"
331
332syn match texTypeStyle		"\\bfseries\>"
333syn match texTypeStyle		"\\mdseries\>"
334
335" Some type sizes: {{{1
336syn match texTypeSize		"\\tiny\>"
337syn match texTypeSize		"\\scriptsize\>"
338syn match texTypeSize		"\\footnotesize\>"
339syn match texTypeSize		"\\small\>"
340syn match texTypeSize		"\\normalsize\>"
341syn match texTypeSize		"\\large\>"
342syn match texTypeSize		"\\Large\>"
343syn match texTypeSize		"\\LARGE\>"
344syn match texTypeSize		"\\huge\>"
345syn match texTypeSize		"\\Huge\>"
346
347" Spacecodes (TeX'isms): {{{1
348" \mathcode`\^^@="2201  \delcode`\(="028300  \sfcode`\)=0 \uccode`X=`X  \lccode`x=`x
349syn match texSpaceCode		"\\\(math\|cat\|del\|lc\|sf\|uc\)code`"me=e-1 nextgroup=texSpaceCodeChar
350syn match texSpaceCodeChar    "`\\\=.\(\^.\)\==\(\d\|\"\x\{1,6}\|`.\)"	contained
351
352" Sections, subsections, etc: {{{1
353if s:tex_fast =~# 'p'
354 if !s:tex_nospell
355  TexFold syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											contains=@texFoldGroup,@texDocGroup,@Spell
356  TexFold syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								contains=@texFoldGroup,@texPartGroup,@Spell
357  TexFold syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							contains=@texFoldGroup,@texChapterGroup,@Spell
358  TexFold syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					contains=@texFoldGroup,@texSectionGroup,@Spell
359  TexFold syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSectionGroup,@Spell
360  TexFold syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSubSectionGroup,@Spell
361  TexFold syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			contains=@texFoldGroup,@texParaGroup,@Spell
362  TexFold syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	contains=@texFoldGroup,@Spell
363  TexFold syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													contains=@texFoldGroup,@Spell
364  TexFold syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											contains=@texFoldGroup,@Spell
365 else
366  TexFold syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											contains=@texFoldGroup,@texDocGroup
367  TexFold syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								contains=@texFoldGroup,@texPartGroup
368  TexFold syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							contains=@texFoldGroup,@texChapterGroup
369  TexFold syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					contains=@texFoldGroup,@texSectionGroup
370  TexFold syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSectionGroup
371  TexFold syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSubSectionGroup
372  TexFold syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			contains=@texFoldGroup,@texParaGroup
373  TexFold syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	contains=@texFoldGroup
374  TexFold syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													contains=@texFoldGroup
375  TexFold syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											contains=@texFoldGroup
376  endif
377endif
378
379" particular support for bold and italic {{{1
380if s:tex_fast =~# 'b'
381  if s:tex_conceal =~# 'b'
382   if !exists("g:tex_nospell") || !g:tex_nospell
383    syn region texBoldStyle	matchgroup=texTypeStyle start="\\textbf\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texBoldGroup,@Spell
384    syn region texBoldItalStyle	matchgroup=texTypeStyle start="\\textit\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texItalGroup,@Spell
385    syn region texItalStyle	matchgroup=texTypeStyle start="\\textit\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texItalGroup,@Spell
386    syn region texItalBoldStyle	matchgroup=texTypeStyle start="\\textbf\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texBoldGroup,@Spell
387   else
388    syn region texBoldStyle	matchgroup=texTypeStyle start="\\textbf\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texBoldGroup
389    syn region texBoldItalStyle	matchgroup=texTypeStyle start="\\textit\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texItalGroup
390    syn region texItalStyle	matchgroup=texTypeStyle start="\\textit\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texItalGroup
391    syn region texItalBoldStyle	matchgroup=texTypeStyle start="\\textbf\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texBoldGroup
392   endif
393  endif
394endif
395
396" Bad Math (mismatched): {{{1
397if !exists("g:tex_no_math") && !s:tex_no_error
398 syn match texBadMath		"\\end\s*{\s*\(array\|gathered\|bBpvV]matrix\|split\|subequations\|smallmatrix\|xxalignat\)\s*}"
399 syn match texBadMath		"\\end\s*{\s*\(align\|alignat\|displaymath\|displaymath\|eqnarray\|equation\|flalign\|gather\|math\|multline\|xalignat\)\*\=\s*}"
400 syn match texBadMath		"\\[\])]"
401endif
402
403" Math Zones: {{{1
404if !exists("g:tex_no_math")
405 " TexNewMathZone: function creates a mathzone with the given suffix and mathzone name. {{{2
406 "                 Starred forms are created if starform is true.  Starred
407 "                 forms have syntax group and synchronization groups with a
408 "                 "S" appended.  Handles: cluster, syntax, sync, and highlighting.
409 fun! TexNewMathZone(sfx,mathzone,starform)
410   let grpname  = "texMathZone".a:sfx
411   let syncname = "texSyncMathZone".a:sfx
412   if s:tex_fold_enabled
413    let foldcmd= " fold"
414   else
415    let foldcmd= ""
416   endif
417   exe "syn cluster texMathZones add=".grpname
418   if s:tex_fast =~# 'M'
419    exe 'syn region '.grpname.' start='."'".'\\begin\s*{\s*'.a:mathzone.'\s*}'."'".' end='."'".'\\end\s*{\s*'.a:mathzone.'\s*}'."'".' keepend contains=@texMathZoneGroup'.foldcmd
420    exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
421    exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
422   endif
423   exe 'hi def link '.grpname.' texMath'
424   if a:starform
425    let grpname  = "texMathZone".a:sfx.'S'
426    let syncname = "texSyncMathZone".a:sfx.'S'
427    exe "syn cluster texMathZones add=".grpname
428    if s:tex_fast =~# 'M'
429     exe 'syn region '.grpname.' start='."'".'\\begin\s*{\s*'.a:mathzone.'\*\s*}'."'".' end='."'".'\\end\s*{\s*'.a:mathzone.'\*\s*}'."'".' keepend contains=@texMathZoneGroup'.foldcmd
430     exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
431     exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
432    endif
433    exe 'hi def link '.grpname.' texMath'
434   endif
435 endfun
436
437 " Standard Math Zones: {{{2
438 call TexNewMathZone("A","align",1)
439 call TexNewMathZone("B","alignat",1)
440 call TexNewMathZone("C","displaymath",1)
441 call TexNewMathZone("D","eqnarray",1)
442 call TexNewMathZone("E","equation",1)
443 call TexNewMathZone("F","flalign",1)
444 call TexNewMathZone("G","gather",1)
445 call TexNewMathZone("H","math",1)
446 call TexNewMathZone("I","multline",1)
447 call TexNewMathZone("J","xalignat",1)
448 call TexNewMathZone("K","xxalignat",0)
449
450 " Inline Math Zones: {{{2
451 if s:tex_fast =~# 'M'
452  if has("conceal") && &enc == 'utf-8' && s:tex_conceal =~# 'd'
453   syn region texMathZoneV	matchgroup=Delimiter start="\\("			matchgroup=Delimiter	end="\\)\|%stopzone\>"			keepend concealends contains=@texMathZoneGroup
454   syn region texMathZoneW	matchgroup=Delimiter start="\\\["			matchgroup=Delimiter	end="\\]\|%stopzone\>"			keepend concealends contains=@texMathZoneGroup
455   syn region texMathZoneX	matchgroup=Delimiter start="\$" skip="\\\\\|\\\$"	matchgroup=Delimiter	end="\$"	end="%stopzone\>"		concealends contains=@texMathZoneGroup
456   syn region texMathZoneY	matchgroup=Delimiter start="\$\$" 			matchgroup=Delimiter	end="\$\$"	end="%stopzone\>"	keepend concealends contains=@texMathZoneGroup
457  else
458   syn region texMathZoneV	matchgroup=Delimiter start="\\("			matchgroup=Delimiter	end="\\)\|%stopzone\>"			keepend contains=@texMathZoneGroup
459   syn region texMathZoneW	matchgroup=Delimiter start="\\\["			matchgroup=Delimiter	end="\\]\|%stopzone\>"			keepend contains=@texMathZoneGroup
460   syn region texMathZoneX	matchgroup=Delimiter start="\$" skip="\%(\\\\\)*\\\$"	matchgroup=Delimiter	end="\$"	end="%stopzone\>"		contains=@texMathZoneGroup
461   syn region texMathZoneY	matchgroup=Delimiter start="\$\$" 			matchgroup=Delimiter	end="\$\$"	end="%stopzone\>"	keepend	contains=@texMathZoneGroup
462  endif
463  syn region texMathZoneZ	matchgroup=texStatement start="\\ensuremath\s*{"	matchgroup=texStatement	end="}"		end="%stopzone\>"	contains=@texMathZoneGroup
464 endif
465
466 syn match texMathOper		"[_^=]" contained
467
468 " Text Inside Math Zones: {{{2
469 if s:tex_fast =~# 'M'
470  if !exists("g:tex_nospell") || !g:tex_nospell
471   syn region texMathText matchgroup=texStatement start='\\\(\(inter\)\=text\|mbox\)\s*{'	end='}'	contains=@texFoldGroup,@Spell
472  else
473   syn region texMathText matchgroup=texStatement start='\\\(\(inter\)\=text\|mbox\)\s*{'	end='}'	contains=@texFoldGroup
474  endif
475 endif
476
477 " \left..something.. and \right..something.. support: {{{2
478 syn match   texMathDelimBad	contained		"\S"
479 if has("conceal") && &enc == 'utf-8' && s:tex_conceal =~# 'm'
480  syn match   texMathDelim	contained		"\\left\["
481  syn match   texMathDelim	contained		"\\left\\{"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad contains=texMathSymbol cchar={
482  syn match   texMathDelim	contained		"\\right\\}"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad contains=texMathSymbol cchar=}
483  let s:texMathDelimList=[
484     \ ['<'            , '<'] ,
485     \ ['>'            , '>'] ,
486     \ ['('            , '('] ,
487     \ [')'            , ')'] ,
488     \ ['\['           , '['] ,
489     \ [']'            , ']'] ,
490     \ ['\\{'          , '{'] ,
491     \ ['\\}'          , '}'] ,
492     \ ['|'            , '|'] ,
493     \ ['\\|'          , '‖'] ,
494     \ ['\\backslash'  , '\'] ,
495     \ ['\\downarrow'  , '↓'] ,
496     \ ['\\Downarrow'  , '⇓'] ,
497     \ ['\\lbrace'     , '['] ,
498     \ ['\\lceil'      , '⌈'] ,
499     \ ['\\lfloor'     , '⌊'] ,
500     \ ['\\lgroup'     , '⌊'] ,
501     \ ['\\lmoustache' , '⎛'] ,
502     \ ['\\rbrace'     , ']'] ,
503     \ ['\\rceil'      , '⌉'] ,
504     \ ['\\rfloor'     , '⌋'] ,
505     \ ['\\rgroup'     , '⌋'] ,
506     \ ['\\rmoustache' , '⎞'] ,
507     \ ['\\uparrow'    , '↑'] ,
508     \ ['\\Uparrow'    , '↑'] ,
509     \ ['\\updownarrow', '↕'] ,
510     \ ['\\Updownarrow', '⇕']]
511  if &ambw == "double" || exists("g:tex_usedblwidth")
512    let s:texMathDelimList= s:texMathDelimList + [
513     \ ['\\langle'     , '〈'] ,
514     \ ['\\rangle'     , '〉'] ,
515  else
516    let s:texMathDelimList= s:texMathDelimList + [
517     \ ['\\langle'     , '<'] ,
518     \ ['\\rangle'     , '>']]
519  endif
520  syn match texMathDelim	'\\[bB]igg\=[lr]' contained nextgroup=texMathDelimBad
521  for texmath in s:texMathDelimList
522   exe "syn match texMathDelim	'\\\\[bB]igg\\=[lr]\\=".texmath[0]."'	contained conceal cchar=".texmath[1]
523  endfor
524
525 else
526  syn match   texMathDelim	contained		"\\\(left\|right\)\>"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad
527  syn match   texMathDelim	contained		"\\[bB]igg\=[lr]\=\>"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad
528  syn match   texMathDelimSet2	contained	"\\"		nextgroup=texMathDelimKey,texMathDelimBad
529  syn match   texMathDelimSet1	contained	"[<>()[\]|/.]\|\\[{}|]"
530  syn keyword texMathDelimKey	contained	backslash       lceil           lVert           rgroup          uparrow
531  syn keyword texMathDelimKey	contained	downarrow       lfloor          rangle          rmoustache      Uparrow
532  syn keyword texMathDelimKey	contained	Downarrow       lgroup          rbrace          rvert           updownarrow
533  syn keyword texMathDelimKey	contained	langle          lmoustache      rceil           rVert           Updownarrow
534  syn keyword texMathDelimKey	contained	lbrace          lvert           rfloor
535 endif
536 syn match   texMathDelim	contained		"\\\(left\|right\)arrow\>\|\<\([aA]rrow\|brace\)\=vert\>"
537 syn match   texMathDelim	contained		"\\lefteqn\>"
538endif
539
540" Special TeX characters  ( \$ \& \% \# \{ \} \_ \S \P ) : {{{1
541syn match texSpecialChar	"\\[$&%#{}_]"
542if b:tex_stylish
543  syn match texSpecialChar	"\\[SP@][^a-zA-Z@]"me=e-1
544else
545  syn match texSpecialChar	"\\[SP@]\A"me=e-1
546endif
547syn match texSpecialChar	"\\\\"
548if !exists("g:tex_no_math")
549 syn match texOnlyMath		"[_^]"
550endif
551syn match texSpecialChar	"\^\^[0-9a-f]\{2}\|\^\^\S"
552if s:tex_conceal !~# 'S'
553 syn match texSpecialChar	'\\glq\>'	contained conceal cchar=‚
554 syn match texSpecialChar	'\\grq\>'	contained conceal cchar=‘
555 syn match texSpecialChar	'\\glqq\>'	contained conceal cchar=„
556 syn match texSpecialChar	'\\grqq\>'	contained conceal cchar=“
557 syn match texSpecialChar	'\\hyp\>'	contained conceal cchar=-
558endif
559
560" Comments: {{{1
561"    Normal TeX LaTeX     :   %....
562"    Documented TeX Format:  ^^A...	-and-	leading %s (only)
563if !s:tex_comment_nospell
564 syn cluster texCommentGroup	contains=texTodo,@Spell
565else
566 syn cluster texCommentGroup	contains=texTodo,@NoSpell
567endif
568syn case ignore
569syn keyword texTodo		contained		combak	fixme	todo	xxx
570syn case match
571if s:extfname == "dtx"
572 syn match texComment		"\^\^A.*$"	contains=@texCommentGroup
573 syn match texComment		"^%\+"		contains=@texCommentGroup
574else
575 if s:tex_fold_enabled
576  " allows syntax-folding of 2 or more contiguous comment lines
577  " single-line comments are not folded
578  syn match  texComment	"%.*$"				contains=@texCommentGroup
579  if s:tex_fast =~# 'c'
580   TexFold syn region texComment						start="^\zs\s*%.*\_s*%"	skip="^\s*%"	end='^\ze\s*[^%]'	contains=@texCommentGroup
581   TexFold syn region texNoSpell	contained	matchgroup=texComment	start="%\s*nospell\s*{"	end="%\s*nospell\s*}"			contains=@texFoldGroup,@NoSpell
582  endif
583 else
584  syn match texComment		"%.*$"			contains=@texCommentGroup
585  if s:tex_fast =~# 'c'
586   syn region texNoSpell		contained	matchgroup=texComment start="%\s*nospell\s*{"	end="%\s*nospell\s*}"	contains=@texFoldGroup,@NoSpell
587  endif
588 endif
589endif
590
591" Separate lines used for verb` and verb# so that the end conditions {{{1
592" will appropriately terminate.
593" If g:tex_verbspell exists, then verbatim texZones will permit spellchecking there.
594if s:tex_fast =~# 'v'
595  if exists("g:tex_verbspell") && g:tex_verbspell
596   syn region texZone		start="\\begin{[vV]erbatim}"		end="\\end{[vV]erbatim}\|%stopzone\>"	contains=@Spell
597   " listings package:
598   syn region texZone		start="\\begin{lstlisting}"		end="\\end{lstlisting}\|%stopzone\>"	contains=@Spell
599   if b:tex_stylish
600    syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z@]\)"	end="\z1\|%stopzone\>"			contains=@Spell
601   else
602    syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z]\)"	end="\z1\|%stopzone\>"			contains=@Spell
603   endif
604  else
605   syn region texZone		start="\\begin{[vV]erbatim}"		end="\\end{[vV]erbatim}\|%stopzone\>"
606   if b:tex_stylish
607     syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z@]\)"	end="\z1\|%stopzone\>"
608   else
609     syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z]\)"	end="\z1\|%stopzone\>"
610   endif
611  endif
612endif
613
614" Tex Reference Zones: {{{1
615if s:tex_fast =~# 'r'
616  syn region texZone		matchgroup=texStatement start="@samp{"			end="}\|%stopzone\>"	contains=@texRefGroup
617  syn region texRefZone		matchgroup=texStatement start="\\nocite{"		end="}\|%stopzone\>"	contains=@texRefGroup
618  syn region texRefZone		matchgroup=texStatement start="\\bibliography{"		end="}\|%stopzone\>"	contains=@texRefGroup
619  syn region texRefZone		matchgroup=texStatement start="\\label{"		end="}\|%stopzone\>"	contains=@texRefGroup
620  syn region texRefZone		matchgroup=texStatement start="\\\(page\|eq\)ref{"	end="}\|%stopzone\>"	contains=@texRefGroup
621  syn region texRefZone		matchgroup=texStatement start="\\v\=ref{"		end="}\|%stopzone\>"	contains=@texRefGroup
622  syn region texRefOption	contained	matchgroup=Delimiter start='\[' end=']'		contains=@texRefGroup,texRefZone	nextgroup=texRefOption,texCite
623  syn region texCite		contained	matchgroup=Delimiter start='{' end='}'		contains=@texRefGroup,texRefZone,texCite
624endif
625syn match  texRefZone		'\\cite\%([tp]\*\=\)\=' nextgroup=texRefOption,texCite
626
627" Handle newcommand, newenvironment : {{{1
628syn match  texNewCmd				"\\newcommand\>"			nextgroup=texCmdName skipwhite skipnl
629if s:tex_fast =~# 'V'
630  syn region texCmdName contained matchgroup=Delimiter start="{"rs=s+1  end="}"		nextgroup=texCmdArgs,texCmdBody skipwhite skipnl
631  syn region texCmdArgs contained matchgroup=Delimiter start="\["rs=s+1 end="]"		nextgroup=texCmdBody skipwhite skipnl
632  syn region texCmdBody contained matchgroup=Delimiter start="{"rs=s+1 skip="\\\\\|\\[{}]"	matchgroup=Delimiter end="}" contains=@texCmdGroup
633endif
634syn match  texNewEnv				"\\newenvironment\>"			nextgroup=texEnvName skipwhite skipnl
635if s:tex_fast =~# 'V'
636  syn region texEnvName contained matchgroup=Delimiter start="{"rs=s+1  end="}"		nextgroup=texEnvBgn skipwhite skipnl
637  syn region texEnvBgn  contained matchgroup=Delimiter start="{"rs=s+1  end="}"		nextgroup=texEnvEnd skipwhite skipnl contains=@texEnvGroup
638  syn region texEnvEnd  contained matchgroup=Delimiter start="{"rs=s+1  end="}"		skipwhite skipnl contains=@texEnvGroup
639endif
640
641" Definitions/Commands: {{{1
642syn match texDefCmd				"\\def\>"				nextgroup=texDefName skipwhite skipnl
643if b:tex_stylish
644  syn match texDefName contained		"\\[a-zA-Z@]\+"				nextgroup=texDefParms,texCmdBody skipwhite skipnl
645  syn match texDefName contained		"\\[^a-zA-Z@]"				nextgroup=texDefParms,texCmdBody skipwhite skipnl
646else
647  syn match texDefName contained		"\\\a\+"				nextgroup=texDefParms,texCmdBody skipwhite skipnl
648  syn match texDefName contained		"\\\A"					nextgroup=texDefParms,texCmdBody skipwhite skipnl
649endif
650syn match texDefParms  contained		"#[^{]*"	contains=texDefParm	nextgroup=texCmdBody skipwhite skipnl
651syn match  texDefParm  contained		"#\d\+"
652
653" TeX Lengths: {{{1
654syn match  texLength		"\<\d\+\([.,]\d\+\)\=\s*\(true\)\=\s*\(bp\|cc\|cm\|dd\|em\|ex\|in\|mm\|pc\|pt\|sp\)\>"
655
656" TeX String Delimiters: {{{1
657syn match texString		"\(``\|''\|,,\)"
658
659" makeatletter -- makeatother sections
660if !s:tex_no_error
661 if s:tex_fast =~# 'S'
662  syn region texStyle			matchgroup=texStatement start='\\makeatletter' end='\\makeatother'	contains=@texStyleGroup contained
663 endif
664 syn match  texStyleStatement		"\\[a-zA-Z@]\+"	contained
665 if s:tex_fast =~# 'S'
666  syn region texStyleMatcher		matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"		contains=@texStyleGroup,texError	contained
667  syn region texStyleMatcher		matchgroup=Delimiter start="\["				end="]"		contains=@texStyleGroup,texError	contained
668 endif
669endif
670
671" Conceal mode support (supports set cole=2) {{{1
672if has("conceal") && &enc == 'utf-8'
673
674 " Math Symbols {{{2
675 " (many of these symbols were contributed by Björn Winckler)
676 if s:tex_conceal =~# 'm'
677  let s:texMathList=[
678    \ ['|'		, '‖'],
679    \ ['aleph'		, 'ℵ'],
680    \ ['amalg'		, '∐'],
681    \ ['angle'		, '∠'],
682    \ ['approx'		, '≈'],
683    \ ['ast'		, '∗'],
684    \ ['asymp'		, '≍'],
685    \ ['backepsilon'	, '∍'],
686    \ ['backsimeq'	, '≃'],
687    \ ['backslash'	, '∖'],
688    \ ['barwedge'	, '⊼'],
689    \ ['because'	, '∵'],
690    \ ['beth'           , 'ܒ'],
691    \ ['between'	, '≬'],
692    \ ['bigcap'		, '∩'],
693    \ ['bigcirc'	, '○'],
694    \ ['bigcup'		, '∪'],
695    \ ['bigodot'	, '⊙'],
696    \ ['bigoplus'	, '⊕'],
697    \ ['bigotimes'	, '⊗'],
698    \ ['bigsqcup'	, '⊔'],
699    \ ['bigtriangledown', '∇'],
700    \ ['bigtriangleup'	, '∆'],
701    \ ['bigvee'		, '⋁'],
702    \ ['bigwedge'	, '⋀'],
703    \ ['blacksquare'	, '∎'],
704    \ ['bot'		, '⊥'],
705    \ ['bowtie'	        , '⋈'],
706    \ ['boxdot'		, '⊡'],
707    \ ['boxminus'	, '⊟'],
708    \ ['boxplus'	, '⊞'],
709    \ ['boxtimes'	, '⊠'],
710    \ ['Box'            , '☐'],
711    \ ['bullet'	        , '•'],
712    \ ['bumpeq'		, '≏'],
713    \ ['Bumpeq'		, '≎'],
714    \ ['cap'		, '∩'],
715    \ ['Cap'		, '⋒'],
716    \ ['cdot'		, '·'],
717    \ ['cdots'		, '⋯'],
718    \ ['circ'		, '∘'],
719    \ ['circeq'		, '≗'],
720    \ ['circlearrowleft', '↺'],
721    \ ['circlearrowright', '↻'],
722    \ ['circledast'	, '⊛'],
723    \ ['circledcirc'	, '⊚'],
724    \ ['clubsuit'	, '♣'],
725    \ ['complement'	, '∁'],
726    \ ['cong'		, '≅'],
727    \ ['coprod'		, '∐'],
728    \ ['copyright'	, '©'],
729    \ ['cup'		, '∪'],
730    \ ['Cup'		, '⋓'],
731    \ ['curlyeqprec'	, '⋞'],
732    \ ['curlyeqsucc'	, '⋟'],
733    \ ['curlyvee'	, '⋎'],
734    \ ['curlywedge'	, '⋏'],
735    \ ['dagger'	        , '†'],
736    \ ['dashv'		, '⊣'],
737    \ ['ddagger'	, '‡'],
738    \ ['ddots'	        , '⋱'],
739    \ ['diamond'	, '⋄'],
740    \ ['diamondsuit'	, '♢'],
741    \ ['div'		, '÷'],
742    \ ['doteq'		, '≐'],
743    \ ['doteqdot'	, '≑'],
744    \ ['dotplus'	, '∔'],
745    \ ['dots'		, '…'],
746    \ ['dotsb'		, '⋯'],
747    \ ['dotsc'		, '…'],
748    \ ['dotsi'		, '⋯'],
749    \ ['dotso'		, '…'],
750    \ ['doublebarwedge'	, '⩞'],
751    \ ['downarrow'	, '↓'],
752    \ ['Downarrow'	, '⇓'],
753    \ ['ell'		, 'ℓ'],
754    \ ['emptyset'	, '∅'],
755    \ ['eqcirc'		, '≖'],
756    \ ['eqsim'		, '≂'],
757    \ ['eqslantgtr'	, '⪖'],
758    \ ['eqslantless'	, '⪕'],
759    \ ['equiv'		, '≡'],
760    \ ['eth'            , 'ð'],
761    \ ['exists'		, '∃'],
762    \ ['fallingdotseq'	, '≒'],
763    \ ['flat'		, '♭'],
764    \ ['forall'		, '∀'],
765    \ ['frown'		, '⁔'],
766    \ ['ge'		, '≥'],
767    \ ['geq'		, '≥'],
768    \ ['geqq'		, '≧'],
769    \ ['gets'		, '←'],
770    \ ['gimel'          , 'ℷ'],
771    \ ['gg'		, '⟫'],
772    \ ['gneqq'		, '≩'],
773    \ ['gtrdot'		, '⋗'],
774    \ ['gtreqless'	, '⋛'],
775    \ ['gtrless'	, '≷'],
776    \ ['gtrsim'		, '≳'],
777    \ ['hbar'		, 'ℏ'],
778    \ ['heartsuit'	, '♡'],
779    \ ['hookleftarrow'	, '↩'],
780    \ ['hookrightarrow'	, '↪'],
781    \ ['iff'            , '⇔'],
782    \ ['iiint'		, '∭'],
783    \ ['iint'		, '∬'],
784    \ ['Im'		, 'ℑ'],
785    \ ['imath'		, 'ɩ'],
786    \ ['implies'	, '⇒'],
787    \ ['in'		, '∈'],
788    \ ['infty'		, '∞'],
789    \ ['int'		, '∫'],
790    \ ['jmath'		, '��'],
791    \ ['land'		, '∧'],
792    \ ['lceil'		, '⌈'],
793    \ ['ldots'		, '…'],
794    \ ['le'		, '≤'],
795    \ ['leadsto'	, '↝'],
796    \ ['left('		, '('],
797    \ ['left\['		, '['],
798    \ ['left\\{'	, '{'],
799    \ ['leftarrow'	, '←'],
800    \ ['Leftarrow'	, '⇐'],
801    \ ['leftarrowtail'	, '↢'],
802    \ ['leftharpoondown', '↽'],
803    \ ['leftharpoonup'	, '↼'],
804    \ ['leftrightarrow'	, '↔'],
805    \ ['Leftrightarrow'	, '⇔'],
806    \ ['leftrightsquigarrow', '↭'],
807    \ ['leftthreetimes'	, '⋋'],
808    \ ['leq'		, '≤'],
809    \ ['leq'		, '≤'],
810    \ ['leqq'		, '≦'],
811    \ ['lessdot'	, '⋖'],
812    \ ['lesseqgtr'	, '⋚'],
813    \ ['lesssim'	, '≲'],
814    \ ['lfloor'		, '⌊'],
815    \ ['ll'		, '≪'],
816    \ ['lmoustache'     , '╭'],
817    \ ['lneqq'		, '≨'],
818    \ ['lor'		, '∨'],
819    \ ['ltimes'		, '⋉'],
820    \ ['mapsto'		, '↦'],
821    \ ['measuredangle'	, '∡'],
822    \ ['mid'		, '∣'],
823    \ ['models'		, '╞'],
824    \ ['mp'		, '∓'],
825    \ ['nabla'		, '∇'],
826    \ ['natural'	, '♮'],
827    \ ['ncong'		, '≇'],
828    \ ['ne'		, '≠'],
829    \ ['nearrow'	, '↗'],
830    \ ['neg'		, '¬'],
831    \ ['neq'		, '≠'],
832    \ ['nexists'	, '∄'],
833    \ ['ngeq'		, '≱'],
834    \ ['ngeqq'		, '≱'],
835    \ ['ngtr'		, '≯'],
836    \ ['ni'		, '∋'],
837    \ ['nleftarrow'	, '↚'],
838    \ ['nLeftarrow'	, '⇍'],
839    \ ['nLeftrightarrow', '⇎'],
840    \ ['nleq'		, '≰'],
841    \ ['nleqq'		, '≰'],
842    \ ['nless'		, '≮'],
843    \ ['nmid'		, '∤'],
844    \ ['notin'		, '∉'],
845    \ ['nparallel'      , '∦'],
846    \ ['nprec'		, '⊀'],
847    \ ['nrightarrow'	, '↛'],
848    \ ['nRightarrow'	, '⇏'],
849    \ ['nsim'		, '≁'],
850    \ ['nsucc'		, '⊁'],
851    \ ['ntriangleleft'	, '⋪'],
852    \ ['ntrianglelefteq', '⋬'],
853    \ ['ntriangleright'	, '⋫'],
854    \ ['ntrianglerighteq', '⋭'],
855    \ ['nvdash'		, '⊬'],
856    \ ['nvDash'		, '⊭'],
857    \ ['nVdash'		, '⊮'],
858    \ ['nwarrow'	, '↖'],
859    \ ['odot'		, '⊙'],
860    \ ['oint'		, '∮'],
861    \ ['ominus'		, '⊖'],
862    \ ['oplus'		, '⊕'],
863    \ ['oslash'		, '⊘'],
864    \ ['otimes'		, '⊗'],
865    \ ['owns'		, '∋'],
866    \ ['P'	        , '¶'],
867    \ ['parallel'	, '║'],
868    \ ['partial'	, '∂'],
869    \ ['perp'		, '⊥'],
870    \ ['pitchfork'	, '⋔'],
871    \ ['pm'		, '±'],
872    \ ['prec'		, '≺'],
873    \ ['precapprox'	, '⪷'],
874    \ ['preccurlyeq'	, '≼'],
875    \ ['preceq'		, '⪯'],
876    \ ['precnapprox'	, '⪹'],
877    \ ['precneqq'	, '⪵'],
878    \ ['precsim'	, '≾'],
879    \ ['prime'		, '′'],
880    \ ['prod'		, '∏'],
881    \ ['propto'		, '∝'],
882    \ ['rceil'		, '⌉'],
883    \ ['Re'		, 'ℜ'],
884    \ ['rfloor'		, '⌋'],
885    \ ['right)'		, ')'],
886    \ ['right]'		, ']'],
887    \ ['right\\}'	, '}'],
888    \ ['rightarrow'	, '→'],
889    \ ['Rightarrow'	, '⇒'],
890    \ ['rightarrowtail'	, '↣'],
891    \ ['rightleftharpoons', '⇌'],
892    \ ['rightsquigarrow', '↝'],
893    \ ['rightthreetimes', '⋌'],
894    \ ['risingdotseq'	, '≓'],
895    \ ['rmoustache'     , '╮'],
896    \ ['rtimes'		, '⋊'],
897    \ ['S'	        , '§'],
898    \ ['searrow'	, '↘'],
899    \ ['setminus'	, '∖'],
900    \ ['sharp'		, '♯'],
901    \ ['sim'		, '∼'],
902    \ ['simeq'		, '⋍'],
903    \ ['smile'		, '‿'],
904    \ ['spadesuit'	, '♠'],
905    \ ['sphericalangle'	, '∢'],
906    \ ['sqcap'		, '⊓'],
907    \ ['sqcup'		, '⊔'],
908    \ ['sqsubset'	, '⊏'],
909    \ ['sqsubseteq'	, '⊑'],
910    \ ['sqsupset'	, '⊐'],
911    \ ['sqsupseteq'	, '⊒'],
912    \ ['star'		, '✫'],
913    \ ['subset'		, '⊂'],
914    \ ['Subset'		, '⋐'],
915    \ ['subseteq'	, '⊆'],
916    \ ['subseteqq'	, '⫅'],
917    \ ['subsetneq'	, '⊊'],
918    \ ['subsetneqq'	, '⫋'],
919    \ ['succ'		, '≻'],
920    \ ['succapprox'	, '⪸'],
921    \ ['succcurlyeq'	, '≽'],
922    \ ['succeq'		, '⪰'],
923    \ ['succnapprox'	, '⪺'],
924    \ ['succneqq'	, '⪶'],
925    \ ['succsim'	, '≿'],
926    \ ['sum'		, '∑'],
927    \ ['supset'		, '⊃'],
928    \ ['Supset'		, '⋑'],
929    \ ['supseteq'	, '⊇'],
930    \ ['supseteqq'	, '⫆'],
931    \ ['supsetneq'	, '⊋'],
932    \ ['supsetneqq'	, '⫌'],
933    \ ['surd'		, '√'],
934    \ ['swarrow'	, '↙'],
935    \ ['therefore'	, '∴'],
936    \ ['times'		, '×'],
937    \ ['to'		, '→'],
938    \ ['top'		, '⊤'],
939    \ ['triangle'	, '∆'],
940    \ ['triangleleft'	, '⊲'],
941    \ ['trianglelefteq'	, '⊴'],
942    \ ['triangleq'	, '≜'],
943    \ ['triangleright'	, '⊳'],
944    \ ['trianglerighteq', '⊵'],
945    \ ['twoheadleftarrow', '↞'],
946    \ ['twoheadrightarrow', '↠'],
947    \ ['ulcorner'       , '⌜'],
948    \ ['uparrow'	, '↑'],
949    \ ['Uparrow'	, '⇑'],
950    \ ['updownarrow'	, '↕'],
951    \ ['Updownarrow'	, '⇕'],
952    \ ['urcorner'       , '⌝'],
953    \ ['varnothing'	, '∅'],
954    \ ['vartriangle'	, '∆'],
955    \ ['vdash'		, '⊢'],
956    \ ['vDash'		, '⊨'],
957    \ ['Vdash'		, '⊩'],
958    \ ['vdots'		, '⋮'],
959    \ ['vee'		, '∨'],
960    \ ['veebar'		, '⊻'],
961    \ ['Vvdash'		, '⊪'],
962    \ ['wedge'		, '∧'],
963    \ ['wp'		, '℘'],
964    \ ['wr'		, '≀']]
965"    \ ['jmath'		, 'X']
966"    \ ['uminus'	, 'X']
967"    \ ['uplus'		, 'X']
968  if &ambw == "double" || exists("g:tex_usedblwidth")
969    let s:texMathList= s:texMathList + [
970    \ ['right\\rangle'	, '〉'],
971    \ ['left\\langle'	, '〈']]
972  else
973    let s:texMathList= s:texMathList + [
974    \ ['right\\rangle'	, '>'],
975    \ ['left\\langle'	, '<']]
976  endif
977  for texmath in s:texMathList
978   if texmath[0] =~# '\w$'
979    exe "syn match texMathSymbol '\\\\".texmath[0]."\\>' contained conceal cchar=".texmath[1]
980   else
981    exe "syn match texMathSymbol '\\\\".texmath[0]."' contained conceal cchar=".texmath[1]
982   endif
983  endfor
984
985  if &ambw == "double"
986   syn match texMathSymbol '\\gg\>'			contained conceal cchar=≫
987   syn match texMathSymbol '\\ll\>'			contained conceal cchar=≪
988  else
989   syn match texMathSymbol '\\gg\>'			contained conceal cchar=⟫
990   syn match texMathSymbol '\\ll\>'			contained conceal cchar=⟪
991  endif
992
993  syn match texMathSymbol '\\hat{a}' contained conceal cchar=â
994  syn match texMathSymbol '\\hat{A}' contained conceal cchar=Â
995  syn match texMathSymbol '\\hat{c}' contained conceal cchar=ĉ
996  syn match texMathSymbol '\\hat{C}' contained conceal cchar=Ĉ
997  syn match texMathSymbol '\\hat{e}' contained conceal cchar=ê
998  syn match texMathSymbol '\\hat{E}' contained conceal cchar=Ê
999  syn match texMathSymbol '\\hat{g}' contained conceal cchar=ĝ
1000  syn match texMathSymbol '\\hat{G}' contained conceal cchar=Ĝ
1001  syn match texMathSymbol '\\hat{i}' contained conceal cchar=î
1002  syn match texMathSymbol '\\hat{I}' contained conceal cchar=Î
1003  syn match texMathSymbol '\\hat{o}' contained conceal cchar=ô
1004  syn match texMathSymbol '\\hat{O}' contained conceal cchar=Ô
1005  syn match texMathSymbol '\\hat{s}' contained conceal cchar=ŝ
1006  syn match texMathSymbol '\\hat{S}' contained conceal cchar=Ŝ
1007  syn match texMathSymbol '\\hat{u}' contained conceal cchar=û
1008  syn match texMathSymbol '\\hat{U}' contained conceal cchar=Û
1009  syn match texMathSymbol '\\hat{w}' contained conceal cchar=ŵ
1010  syn match texMathSymbol '\\hat{W}' contained conceal cchar=Ŵ
1011  syn match texMathSymbol '\\hat{y}' contained conceal cchar=ŷ
1012  syn match texMathSymbol '\\hat{Y}' contained conceal cchar=Ŷ
1013"  syn match texMathSymbol '\\bar{a}' contained conceal cchar=a̅
1014 endif
1015
1016 " Greek {{{2
1017 if s:tex_conceal =~# 'g'
1018  fun! s:Greek(group,pat,cchar)
1019    exe 'syn match '.a:group." '".a:pat."' contained conceal cchar=".a:cchar
1020  endfun
1021  call s:Greek('texGreek','\\alpha\>'		,'α')
1022  call s:Greek('texGreek','\\beta\>'		,'β')
1023  call s:Greek('texGreek','\\gamma\>'		,'γ')
1024  call s:Greek('texGreek','\\delta\>'		,'δ')
1025  call s:Greek('texGreek','\\epsilon\>'		,'ϵ')
1026  call s:Greek('texGreek','\\varepsilon\>'	,'ε')
1027  call s:Greek('texGreek','\\zeta\>'		,'ζ')
1028  call s:Greek('texGreek','\\eta\>'		,'η')
1029  call s:Greek('texGreek','\\theta\>'		,'θ')
1030  call s:Greek('texGreek','\\vartheta\>'	,'ϑ')
1031  call s:Greek('texGreek','\\kappa\>'		,'κ')
1032  call s:Greek('texGreek','\\lambda\>'		,'λ')
1033  call s:Greek('texGreek','\\mu\>'		,'μ')
1034  call s:Greek('texGreek','\\nu\>'		,'ν')
1035  call s:Greek('texGreek','\\xi\>'		,'ξ')
1036  call s:Greek('texGreek','\\pi\>'		,'π')
1037  call s:Greek('texGreek','\\varpi\>'		,'ϖ')
1038  call s:Greek('texGreek','\\rho\>'		,'ρ')
1039  call s:Greek('texGreek','\\varrho\>'		,'ϱ')
1040  call s:Greek('texGreek','\\sigma\>'		,'σ')
1041  call s:Greek('texGreek','\\varsigma\>'	,'ς')
1042  call s:Greek('texGreek','\\tau\>'		,'τ')
1043  call s:Greek('texGreek','\\upsilon\>'		,'υ')
1044  call s:Greek('texGreek','\\phi\>'		,'ϕ')
1045  call s:Greek('texGreek','\\varphi\>'		,'φ')
1046  call s:Greek('texGreek','\\chi\>'		,'χ')
1047  call s:Greek('texGreek','\\psi\>'		,'ψ')
1048  call s:Greek('texGreek','\\omega\>'		,'ω')
1049  call s:Greek('texGreek','\\Gamma\>'		,'Γ')
1050  call s:Greek('texGreek','\\Delta\>'		,'Δ')
1051  call s:Greek('texGreek','\\Theta\>'		,'Θ')
1052  call s:Greek('texGreek','\\Lambda\>'		,'Λ')
1053  call s:Greek('texGreek','\\Xi\>'		,'Χ')
1054  call s:Greek('texGreek','\\Pi\>'		,'Π')
1055  call s:Greek('texGreek','\\Sigma\>'		,'Σ')
1056  call s:Greek('texGreek','\\Upsilon\>'		,'Υ')
1057  call s:Greek('texGreek','\\Phi\>'		,'Φ')
1058  call s:Greek('texGreek','\\Psi\>'		,'Ψ')
1059  call s:Greek('texGreek','\\Omega\>'		,'Ω')
1060  delfun s:Greek
1061 endif
1062
1063 " Superscripts/Subscripts {{{2
1064 if s:tex_conceal =~# 's'
1065  if s:tex_fast =~# 's'
1066   syn region texSuperscript	matchgroup=Delimiter start='\^{'	skip="\\\\\|\\[{}]" end='}'	contained concealends contains=texSpecialChar,texSuperscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
1067   syn region texSubscript	matchgroup=Delimiter start='_{'		skip="\\\\\|\\[{}]" end='}'	contained concealends contains=texSpecialChar,texSubscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
1068  endif
1069  " s:SuperSub:
1070  fun! s:SuperSub(group,leader,pat,cchar)
1071    if a:pat =~# '^\\' || (a:leader == '\^' && a:pat =~# s:tex_superscripts) || (a:leader == '_' && a:pat =~# s:tex_subscripts)
1072"     call Decho("SuperSub: group<".a:group."> leader<".a:leader."> pat<".a:pat."> cchar<".a:cchar.">")
1073     exe 'syn match '.a:group." '".a:leader.a:pat."' contained conceal cchar=".a:cchar
1074     exe 'syn match '.a:group."s '".a:pat        ."' contained conceal cchar=".a:cchar.' nextgroup='.a:group.'s'
1075    endif
1076  endfun
1077  call s:SuperSub('texSuperscript','\^','0','⁰')
1078  call s:SuperSub('texSuperscript','\^','1','¹')
1079  call s:SuperSub('texSuperscript','\^','2','²')
1080  call s:SuperSub('texSuperscript','\^','3','³')
1081  call s:SuperSub('texSuperscript','\^','4','⁴')
1082  call s:SuperSub('texSuperscript','\^','5','⁵')
1083  call s:SuperSub('texSuperscript','\^','6','⁶')
1084  call s:SuperSub('texSuperscript','\^','7','⁷')
1085  call s:SuperSub('texSuperscript','\^','8','⁸')
1086  call s:SuperSub('texSuperscript','\^','9','⁹')
1087  call s:SuperSub('texSuperscript','\^','a','ᵃ')
1088  call s:SuperSub('texSuperscript','\^','b','ᵇ')
1089  call s:SuperSub('texSuperscript','\^','c','ᶜ')
1090  call s:SuperSub('texSuperscript','\^','d','ᵈ')
1091  call s:SuperSub('texSuperscript','\^','e','ᵉ')
1092  call s:SuperSub('texSuperscript','\^','f','ᶠ')
1093  call s:SuperSub('texSuperscript','\^','g','ᵍ')
1094  call s:SuperSub('texSuperscript','\^','h','ʰ')
1095  call s:SuperSub('texSuperscript','\^','i','ⁱ')
1096  call s:SuperSub('texSuperscript','\^','j','ʲ')
1097  call s:SuperSub('texSuperscript','\^','k','ᵏ')
1098  call s:SuperSub('texSuperscript','\^','l','ˡ')
1099  call s:SuperSub('texSuperscript','\^','m','ᵐ')
1100  call s:SuperSub('texSuperscript','\^','n','ⁿ')
1101  call s:SuperSub('texSuperscript','\^','o','ᵒ')
1102  call s:SuperSub('texSuperscript','\^','p','ᵖ')
1103  call s:SuperSub('texSuperscript','\^','r','ʳ')
1104  call s:SuperSub('texSuperscript','\^','s','ˢ')
1105  call s:SuperSub('texSuperscript','\^','t','ᵗ')
1106  call s:SuperSub('texSuperscript','\^','u','ᵘ')
1107  call s:SuperSub('texSuperscript','\^','v','ᵛ')
1108  call s:SuperSub('texSuperscript','\^','w','ʷ')
1109  call s:SuperSub('texSuperscript','\^','x','ˣ')
1110  call s:SuperSub('texSuperscript','\^','y','ʸ')
1111  call s:SuperSub('texSuperscript','\^','z','ᶻ')
1112  call s:SuperSub('texSuperscript','\^','A','ᴬ')
1113  call s:SuperSub('texSuperscript','\^','B','ᴮ')
1114  call s:SuperSub('texSuperscript','\^','D','ᴰ')
1115  call s:SuperSub('texSuperscript','\^','E','ᴱ')
1116  call s:SuperSub('texSuperscript','\^','G','ᴳ')
1117  call s:SuperSub('texSuperscript','\^','H','ᴴ')
1118  call s:SuperSub('texSuperscript','\^','I','ᴵ')
1119  call s:SuperSub('texSuperscript','\^','J','ᴶ')
1120  call s:SuperSub('texSuperscript','\^','K','ᴷ')
1121  call s:SuperSub('texSuperscript','\^','L','ᴸ')
1122  call s:SuperSub('texSuperscript','\^','M','ᴹ')
1123  call s:SuperSub('texSuperscript','\^','N','ᴺ')
1124  call s:SuperSub('texSuperscript','\^','O','ᴼ')
1125  call s:SuperSub('texSuperscript','\^','P','ᴾ')
1126  call s:SuperSub('texSuperscript','\^','R','ᴿ')
1127  call s:SuperSub('texSuperscript','\^','T','ᵀ')
1128  call s:SuperSub('texSuperscript','\^','U','ᵁ')
1129  call s:SuperSub('texSuperscript','\^','W','ᵂ')
1130  call s:SuperSub('texSuperscript','\^',',','︐')
1131  call s:SuperSub('texSuperscript','\^',':','︓')
1132  call s:SuperSub('texSuperscript','\^',';','︔')
1133  call s:SuperSub('texSuperscript','\^','+','⁺')
1134  call s:SuperSub('texSuperscript','\^','-','⁻')
1135  call s:SuperSub('texSuperscript','\^','<','˂')
1136  call s:SuperSub('texSuperscript','\^','>','˃')
1137  call s:SuperSub('texSuperscript','\^','/','ˊ')
1138  call s:SuperSub('texSuperscript','\^','(','⁽')
1139  call s:SuperSub('texSuperscript','\^',')','⁾')
1140  call s:SuperSub('texSuperscript','\^','\.','˙')
1141  call s:SuperSub('texSuperscript','\^','=','˭')
1142  call s:SuperSub('texSubscript','_','0','₀')
1143  call s:SuperSub('texSubscript','_','1','₁')
1144  call s:SuperSub('texSubscript','_','2','₂')
1145  call s:SuperSub('texSubscript','_','3','₃')
1146  call s:SuperSub('texSubscript','_','4','₄')
1147  call s:SuperSub('texSubscript','_','5','₅')
1148  call s:SuperSub('texSubscript','_','6','₆')
1149  call s:SuperSub('texSubscript','_','7','₇')
1150  call s:SuperSub('texSubscript','_','8','₈')
1151  call s:SuperSub('texSubscript','_','9','₉')
1152  call s:SuperSub('texSubscript','_','a','ₐ')
1153  call s:SuperSub('texSubscript','_','e','ₑ')
1154  call s:SuperSub('texSubscript','_','h','ₕ')
1155  call s:SuperSub('texSubscript','_','i','ᵢ')
1156  call s:SuperSub('texSubscript','_','j','ⱼ')
1157  call s:SuperSub('texSubscript','_','k','ₖ')
1158  call s:SuperSub('texSubscript','_','l','ₗ')
1159  call s:SuperSub('texSubscript','_','m','ₘ')
1160  call s:SuperSub('texSubscript','_','n','ₙ')
1161  call s:SuperSub('texSubscript','_','o','ₒ')
1162  call s:SuperSub('texSubscript','_','p','ₚ')
1163  call s:SuperSub('texSubscript','_','r','ᵣ')
1164  call s:SuperSub('texSubscript','_','s','ₛ')
1165  call s:SuperSub('texSubscript','_','t','ₜ')
1166  call s:SuperSub('texSubscript','_','u','ᵤ')
1167  call s:SuperSub('texSubscript','_','v','ᵥ')
1168  call s:SuperSub('texSubscript','_','x','ₓ')
1169  call s:SuperSub('texSubscript','_',',','︐')
1170  call s:SuperSub('texSubscript','_','+','₊')
1171  call s:SuperSub('texSubscript','_','-','₋')
1172  call s:SuperSub('texSubscript','_','/','ˏ')
1173  call s:SuperSub('texSubscript','_','(','₍')
1174  call s:SuperSub('texSubscript','_',')','₎')
1175  call s:SuperSub('texSubscript','_','\.','‸')
1176  call s:SuperSub('texSubscript','_','r','ᵣ')
1177  call s:SuperSub('texSubscript','_','v','ᵥ')
1178  call s:SuperSub('texSubscript','_','x','ₓ')
1179  call s:SuperSub('texSubscript','_','\\beta\>' ,'ᵦ')
1180  call s:SuperSub('texSubscript','_','\\delta\>','ᵨ')
1181  call s:SuperSub('texSubscript','_','\\phi\>'  ,'ᵩ')
1182  call s:SuperSub('texSubscript','_','\\gamma\>','ᵧ')
1183  call s:SuperSub('texSubscript','_','\\chi\>'  ,'ᵪ')
1184
1185  delfun s:SuperSub
1186 endif
1187
1188 " Accented characters: {{{2
1189 if s:tex_conceal =~# 'a'
1190  if b:tex_stylish
1191   syn match texAccent		"\\[bcdvuH][^a-zA-Z@]"me=e-1
1192   syn match texLigature		"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)[^a-zA-Z@]"me=e-1
1193  else
1194   fun! s:Accents(chr,...)
1195     let i= 1
1196     for accent in ["`","\\'","^",'"','\~','\.','=',"c","H","k","r","u","v"]
1197      if i > a:0
1198       break
1199      endif
1200      if strlen(a:{i}) == 0 || a:{i} == ' ' || a:{i} == '?'
1201       let i= i + 1
1202       continue
1203      endif
1204      if accent =~# '\a'
1205       exe "syn match texAccent '".'\\'.accent.'\(\s*{'.a:chr.'}\|\s\+'.a:chr.'\)'."' conceal cchar=".a:{i}
1206      else
1207       exe "syn match texAccent '".'\\'.accent.'\s*\({'.a:chr.'}\|'.a:chr.'\)'."' conceal cchar=".a:{i}
1208      endif
1209      let i= i + 1
1210     endfor
1211   endfun
1212   "                  \`  \'  \^  \"  \~  \.  \=  \c  \H  \k  \r  \u  \v
1213   call s:Accents('a','à','á','â','ä','ã','ȧ','ā',' ',' ','ą','å','ă','ǎ')
1214   call s:Accents('A','À','Á','Â','Ä','Ã','Ȧ','Ā',' ',' ','Ą','Å','Ă','Ǎ')
1215   call s:Accents('c',' ','ć','ĉ',' ',' ','ċ',' ','ç',' ',' ',' ',' ','č')
1216   call s:Accents('C',' ','Ć','Ĉ',' ',' ','Ċ',' ','Ç',' ',' ',' ',' ','Č')
1217   call s:Accents('d',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ď')
1218   call s:Accents('D',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','Ď')
1219   call s:Accents('e','è','é','ê','ë','ẽ','ė','ē','ȩ',' ','ę',' ','ĕ','ě')
1220   call s:Accents('E','È','É','Ê','Ë','Ẽ','Ė','Ē','Ȩ',' ','Ę',' ','Ĕ','Ě')
1221   call s:Accents('g',' ','ǵ','ĝ',' ',' ','ġ',' ','ģ',' ',' ',' ','ğ','ǧ')
1222   call s:Accents('G',' ','Ǵ','Ĝ',' ',' ','Ġ',' ','Ģ',' ',' ',' ','Ğ','Ǧ')
1223   call s:Accents('h',' ',' ','ĥ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ȟ')
1224   call s:Accents('H',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','Ȟ')
1225   call s:Accents('i','ì','í','î','ï','ĩ','į','ī',' ',' ','į',' ','ĭ','ǐ')
1226   call s:Accents('I','Ì','Í','Î','Ï','Ĩ','İ','Ī',' ',' ','Į',' ','Ĭ','Ǐ')
1227   call s:Accents('J',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ǰ')
1228   call s:Accents('k',' ',' ',' ',' ',' ',' ',' ','ķ',' ',' ',' ',' ','ǩ')
1229   call s:Accents('K',' ',' ',' ',' ',' ',' ',' ','Ķ',' ',' ',' ',' ','Ǩ')
1230   call s:Accents('l',' ','ĺ','ľ',' ',' ',' ',' ','ļ',' ',' ',' ',' ','ľ')
1231   call s:Accents('L',' ','Ĺ','Ľ',' ',' ',' ',' ','Ļ',' ',' ',' ',' ','Ľ')
1232   call s:Accents('n',' ','ń',' ',' ','ñ',' ',' ','ņ',' ',' ',' ',' ','ň')
1233   call s:Accents('N',' ','Ń',' ',' ','Ñ',' ',' ','Ņ',' ',' ',' ',' ','Ň')
1234   call s:Accents('o','ò','ó','ô','ö','õ','ȯ','ō',' ','ő','ǫ',' ','ŏ','ǒ')
1235   call s:Accents('O','Ò','Ó','Ô','Ö','Õ','Ȯ','Ō',' ','Ő','Ǫ',' ','Ŏ','Ǒ')
1236   call s:Accents('r',' ','ŕ',' ',' ',' ',' ',' ','ŗ',' ',' ',' ',' ','ř')
1237   call s:Accents('R',' ','Ŕ',' ',' ',' ',' ',' ','Ŗ',' ',' ',' ',' ','Ř')
1238   call s:Accents('s',' ','ś','ŝ',' ',' ',' ',' ','ş',' ','ȿ',' ',' ','š')
1239   call s:Accents('S',' ','Ś','Ŝ',' ',' ',' ',' ','Ş',' ',' ',' ',' ','Š')
1240   call s:Accents('t',' ',' ',' ',' ',' ',' ',' ','ţ',' ',' ',' ',' ','ť')
1241   call s:Accents('T',' ',' ',' ',' ',' ',' ',' ','Ţ',' ',' ',' ',' ','Ť')
1242   call s:Accents('u','ù','ú','û','ü','ũ',' ','ū',' ','ű','ų','ů','ŭ','ǔ')
1243   call s:Accents('U','Ù','Ú','Û','Ü','Ũ',' ','Ū',' ','Ű','Ų','Ů','Ŭ','Ǔ')
1244   call s:Accents('w',' ',' ','ŵ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ')
1245   call s:Accents('W',' ',' ','Ŵ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ')
1246   call s:Accents('y','ỳ','ý','ŷ','ÿ','ỹ',' ',' ',' ',' ',' ',' ',' ',' ')
1247   call s:Accents('Y','Ỳ','Ý','Ŷ','Ÿ','Ỹ',' ',' ',' ',' ',' ',' ',' ',' ')
1248   call s:Accents('z',' ','ź',' ',' ',' ','ż',' ',' ',' ',' ',' ',' ','ž')
1249   call s:Accents('Z',' ','Ź',' ',' ',' ','Ż',' ',' ',' ',' ',' ',' ','Ž')
1250   call s:Accents('\\i','ì','í','î','ï','ĩ','į',' ',' ',' ',' ',' ','ĭ',' ')
1251   "                    \`  \'  \^  \"  \~  \.  \=  \c  \H  \k  \r  \u  \v
1252   delfun s:Accents
1253   syn match texAccent   '\\aa\>'	conceal cchar=å
1254   syn match texAccent   '\\AA\>'	conceal cchar=Å
1255   syn match texAccent	'\\o\>'		conceal cchar=ø
1256   syn match texAccent	'\\O\>'		conceal cchar=Ø
1257   syn match texLigature	'\\AE\>'	conceal cchar=Æ
1258   syn match texLigature	'\\ae\>'	conceal cchar=æ
1259   syn match texLigature	'\\oe\>'	conceal cchar=œ
1260   syn match texLigature	'\\OE\>'	conceal cchar=Œ
1261   syn match texLigature	'\\ss\>'	conceal cchar=ß
1262  endif
1263 endif
1264endif
1265
1266" ---------------------------------------------------------------------
1267" LaTeX synchronization: {{{1
1268syn sync maxlines=200
1269syn sync minlines=50
1270
1271syn  sync match texSyncStop			groupthere NONE		"%stopzone\>"
1272
1273" Synchronization: {{{1
1274" The $..$ and $$..$$ make for impossible sync patterns
1275" (one can't tell if a "$$" starts or stops a math zone by itself)
1276" The following grouptheres coupled with minlines above
1277" help improve the odds of good syncing.
1278if !exists("g:tex_no_math")
1279 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{abstract}"
1280 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{center}"
1281 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{description}"
1282 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{enumerate}"
1283 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{itemize}"
1284 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{table}"
1285 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{tabular}"
1286 syn sync match texSyncMathZoneA		groupthere NONE		"\\\(sub\)*section\>"
1287endif
1288
1289" ---------------------------------------------------------------------
1290" Highlighting: {{{1
1291
1292" Define the default highlighting. {{{1
1293if !exists("skip_tex_syntax_inits")
1294
1295  " TeX highlighting groups which should share similar highlighting
1296  if !exists("g:tex_no_error")
1297   if !exists("g:tex_no_math")
1298    hi def link texBadMath		texError
1299    hi def link texMathDelimBad		texError
1300    hi def link texMathError		texError
1301    if !b:tex_stylish
1302      hi def link texOnlyMath		texError
1303    endif
1304   endif
1305   hi def link texError			Error
1306  endif
1307
1308  hi texBoldStyle		gui=bold	cterm=bold
1309  hi texItalStyle		gui=italic	cterm=italic
1310  hi texBoldItalStyle		gui=bold,italic cterm=bold,italic
1311  hi texItalBoldStyle		gui=bold,italic cterm=bold,italic
1312  hi def link texCite		texRefZone
1313  hi def link texDefCmd		texDef
1314  hi def link texDefName	texDef
1315  hi def link texDocType	texCmdName
1316  hi def link texDocTypeArgs	texCmdArgs
1317  hi def link texInputFileOpt	texCmdArgs
1318  hi def link texInputCurlies	texDelimiter
1319  hi def link texLigature	texSpecialChar
1320  if !exists("g:tex_no_math")
1321   hi def link texMathDelimSet1	texMathDelim
1322   hi def link texMathDelimSet2	texMathDelim
1323   hi def link texMathDelimKey	texMathDelim
1324   hi def link texMathMatcher	texMath
1325   hi def link texAccent	texStatement
1326   hi def link texGreek		texStatement
1327   hi def link texSuperscript	texStatement
1328   hi def link texSubscript	texStatement
1329   hi def link texSuperscripts 	texSuperscript
1330   hi def link texSubscripts 	texSubscript
1331   hi def link texMathSymbol	texStatement
1332   hi def link texMathZoneV	texMath
1333   hi def link texMathZoneW	texMath
1334   hi def link texMathZoneX	texMath
1335   hi def link texMathZoneY	texMath
1336   hi def link texMathZoneV	texMath
1337   hi def link texMathZoneZ	texMath
1338  endif
1339  hi def link texBeginEnd	texCmdName
1340  hi def link texBeginEndName	texSection
1341  hi def link texSpaceCode	texStatement
1342  hi def link texStyleStatement	texStatement
1343  hi def link texTypeSize	texType
1344  hi def link texTypeStyle	texType
1345
1346   " Basic TeX highlighting groups
1347  hi def link texCmdArgs	Number
1348  hi def link texCmdName	Statement
1349  hi def link texComment	Comment
1350  hi def link texDef		Statement
1351  hi def link texDefParm	Special
1352  hi def link texDelimiter	Delimiter
1353  hi def link texInput		Special
1354  hi def link texInputFile	Special
1355  hi def link texLength		Number
1356  hi def link texMath		Special
1357  hi def link texMathDelim	Statement
1358  hi def link texMathOper	Operator
1359  hi def link texNewCmd		Statement
1360  hi def link texNewEnv		Statement
1361  hi def link texOption		Number
1362  hi def link texRefZone	Special
1363  hi def link texSection	PreCondit
1364  hi def link texSpaceCodeChar	Special
1365  hi def link texSpecialChar	SpecialChar
1366  hi def link texStatement	Statement
1367  hi def link texString		String
1368  hi def link texTodo		Todo
1369  hi def link texType		Type
1370  hi def link texZone		PreCondit
1371
1372endif
1373
1374" Cleanup: {{{1
1375delc TexFold
1376unlet s:extfname
1377let   b:current_syntax = "tex"
1378let &cpo               = s:keepcpo
1379unlet s:keepcpo
1380" vim: ts=8 fdm=marker
1381