xref: /vim-8.2.3635/runtime/syntax/tex.vim (revision b0d45e7f) 
1" Vim syntax file
2" Language:	TeX
3" Maintainer:	Charles E. Campbell <[email protected]>
4" Last Change:	Oct 12, 2017
5" Version:	105
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
263" \begin{}/\end{} section markers: {{{1
264syn match  texBeginEnd		"\\begin\>\|\\end\>" nextgroup=texBeginEndName
265if s:tex_fast =~# 'm'
266  syn region texBeginEndName		matchgroup=Delimiter	start="{"		end="}"	contained	nextgroup=texBeginEndModifier	contains=texComment
267  syn region texBeginEndModifier	matchgroup=Delimiter	start="\["		end="]"	contained	contains=texComment,@texMathZones,@NoSpell
268endif
269
270" \documentclass, \documentstyle, \usepackage: {{{1
271syn match  texDocType		"\\documentclass\>\|\\documentstyle\>\|\\usepackage\>"	nextgroup=texBeginEndName,texDocTypeArgs
272if s:tex_fast =~# 'm'
273  syn region texDocTypeArgs	matchgroup=Delimiter start="\[" end="]"			contained	nextgroup=texBeginEndName	contains=texComment,@NoSpell
274endif
275
276" Preamble syntax-based folding support: {{{1
277if s:tex_fold_enabled && has("folding")
278 syn region texPreamble	transparent fold	start='\zs\\documentclass\>' end='\ze\\begin{document}'	contains=texStyle,@texPreambleMatchGroup
279endif
280
281" TeX input: {{{1
282syn match texInput		"\\input\s\+[a-zA-Z/.0-9_^]\+"hs=s+7				contains=texStatement
283syn match texInputFile		"\\include\(graphics\|list\)\=\(\[.\{-}\]\)\=\s*{.\{-}}"	contains=texStatement,texInputCurlies,texInputFileOpt
284syn match texInputFile		"\\\(epsfig\|input\|usepackage\)\s*\(\[.*\]\)\={.\{-}}"		contains=texStatement,texInputCurlies,texInputFileOpt
285syn match texInputCurlies	"[{}]"								contained
286if s:tex_fast =~# 'm'
287 syn region texInputFileOpt	matchgroup=Delimiter start="\[" end="\]"			contained	contains=texComment
288endif
289
290" Type Styles (LaTeX 2.09): {{{1
291syn match texTypeStyle		"\\rm\>"
292syn match texTypeStyle		"\\em\>"
293syn match texTypeStyle		"\\bf\>"
294syn match texTypeStyle		"\\it\>"
295syn match texTypeStyle		"\\sl\>"
296syn match texTypeStyle		"\\sf\>"
297syn match texTypeStyle		"\\sc\>"
298syn match texTypeStyle		"\\tt\>"
299
300" Type Styles: attributes, commands, families, etc (LaTeX2E): {{{1
301if s:tex_conceal !~# 'b'
302 syn match texTypeStyle		"\\textbf\>"
303 syn match texTypeStyle		"\\textit\>"
304endif
305syn match texTypeStyle		"\\textmd\>"
306syn match texTypeStyle		"\\textrm\>"
307syn match texTypeStyle		"\\textsc\>"
308syn match texTypeStyle		"\\textsf\>"
309syn match texTypeStyle		"\\textsl\>"
310syn match texTypeStyle		"\\texttt\>"
311syn match texTypeStyle		"\\textup\>"
312syn match texTypeStyle		"\\emph\>"
313
314syn match texTypeStyle		"\\mathbb\>"
315syn match texTypeStyle		"\\mathbf\>"
316syn match texTypeStyle		"\\mathcal\>"
317syn match texTypeStyle		"\\mathfrak\>"
318syn match texTypeStyle		"\\mathit\>"
319syn match texTypeStyle		"\\mathnormal\>"
320syn match texTypeStyle		"\\mathrm\>"
321syn match texTypeStyle		"\\mathsf\>"
322syn match texTypeStyle		"\\mathtt\>"
323
324syn match texTypeStyle		"\\rmfamily\>"
325syn match texTypeStyle		"\\sffamily\>"
326syn match texTypeStyle		"\\ttfamily\>"
327
328syn match texTypeStyle		"\\itshape\>"
329syn match texTypeStyle		"\\scshape\>"
330syn match texTypeStyle		"\\slshape\>"
331syn match texTypeStyle		"\\upshape\>"
332
333syn match texTypeStyle		"\\bfseries\>"
334syn match texTypeStyle		"\\mdseries\>"
335
336" Some type sizes: {{{1
337syn match texTypeSize		"\\tiny\>"
338syn match texTypeSize		"\\scriptsize\>"
339syn match texTypeSize		"\\footnotesize\>"
340syn match texTypeSize		"\\small\>"
341syn match texTypeSize		"\\normalsize\>"
342syn match texTypeSize		"\\large\>"
343syn match texTypeSize		"\\Large\>"
344syn match texTypeSize		"\\LARGE\>"
345syn match texTypeSize		"\\huge\>"
346syn match texTypeSize		"\\Huge\>"
347
348" Spacecodes (TeX'isms): {{{1
349" \mathcode`\^^@="2201  \delcode`\(="028300  \sfcode`\)=0 \uccode`X=`X  \lccode`x=`x
350syn match texSpaceCode		"\\\(math\|cat\|del\|lc\|sf\|uc\)code`"me=e-1 nextgroup=texSpaceCodeChar
351syn match texSpaceCodeChar    "`\\\=.\(\^.\)\==\(\d\|\"\x\{1,6}\|`.\)"	contained
352
353" Sections, subsections, etc: {{{1
354if s:tex_fast =~# 'p'
355 if !s:tex_nospell
356  TexFold syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											contains=@texFoldGroup,@texDocGroup,@Spell
357  TexFold syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								contains=@texFoldGroup,@texPartGroup,@Spell
358  TexFold syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							contains=@texFoldGroup,@texChapterGroup,@Spell
359  TexFold syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					contains=@texFoldGroup,@texSectionGroup,@Spell
360  TexFold syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSectionGroup,@Spell
361  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
362  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
363  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
364  TexFold syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													contains=@texFoldGroup,@Spell
365  TexFold syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											contains=@texFoldGroup,@Spell
366 else
367  TexFold syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											contains=@texFoldGroup,@texDocGroup
368  TexFold syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								contains=@texFoldGroup,@texPartGroup
369  TexFold syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							contains=@texFoldGroup,@texChapterGroup
370  TexFold syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					contains=@texFoldGroup,@texSectionGroup
371  TexFold syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSectionGroup
372  TexFold syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSubSectionGroup
373  TexFold syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			contains=@texFoldGroup,@texParaGroup
374  TexFold syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	contains=@texFoldGroup
375  TexFold syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													contains=@texFoldGroup
376  TexFold syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											contains=@texFoldGroup
377  endif
378endif
379
380" particular support for bold and italic {{{1
381if s:tex_fast =~# 'b'
382  if s:tex_conceal =~# 'b'
383   if !exists("g:tex_nospell") || !g:tex_nospell
384    syn region texBoldStyle	matchgroup=texTypeStyle start="\\textbf\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texBoldGroup,@Spell
385    syn region texBoldItalStyle	matchgroup=texTypeStyle start="\\textit\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texItalGroup,@Spell
386    syn region texItalStyle	matchgroup=texTypeStyle start="\\textit\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texItalGroup,@Spell
387    syn region texItalBoldStyle	matchgroup=texTypeStyle start="\\textbf\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texBoldGroup,@Spell
388   else
389    syn region texBoldStyle	matchgroup=texTypeStyle start="\\textbf\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texBoldGroup
390    syn region texBoldItalStyle	matchgroup=texTypeStyle start="\\textit\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texItalGroup
391    syn region texItalStyle	matchgroup=texTypeStyle start="\\textit\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texItalGroup
392    syn region texItalBoldStyle	matchgroup=texTypeStyle start="\\textbf\s*{" matchgroup=texTypeStyle  end="}" concealends contains=@texBoldGroup
393   endif
394  endif
395endif
396
397" Bad Math (mismatched): {{{1
398if !exists("g:tex_no_math") && !s:tex_no_error
399 syn match texBadMath		"\\end\s*{\s*\(array\|gathered\|bBpvV]matrix\|split\|subequations\|smallmatrix\|xxalignat\)\s*}"
400 syn match texBadMath		"\\end\s*{\s*\(align\|alignat\|displaymath\|displaymath\|eqnarray\|equation\|flalign\|gather\|math\|multline\|xalignat\)\*\=\s*}"
401 syn match texBadMath		"\\[\])]"
402endif
403
404" Math Zones: {{{1
405if !exists("g:tex_no_math")
406 " TexNewMathZone: function creates a mathzone with the given suffix and mathzone name. {{{2
407 "                 Starred forms are created if starform is true.  Starred
408 "                 forms have syntax group and synchronization groups with a
409 "                 "S" appended.  Handles: cluster, syntax, sync, and highlighting.
410 fun! TexNewMathZone(sfx,mathzone,starform)
411   let grpname  = "texMathZone".a:sfx
412   let syncname = "texSyncMathZone".a:sfx
413   if s:tex_fold_enabled
414    let foldcmd= " fold"
415   else
416    let foldcmd= ""
417   endif
418   exe "syn cluster texMathZones add=".grpname
419   if s:tex_fast =~# 'M'
420    exe 'syn region '.grpname.' start='."'".'\\begin\s*{\s*'.a:mathzone.'\s*}'."'".' end='."'".'\\end\s*{\s*'.a:mathzone.'\s*}'."'".' keepend contains=@texMathZoneGroup'.foldcmd
421    exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
422    exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
423   endif
424   exe 'hi def link '.grpname.' texMath'
425   if a:starform
426    let grpname  = "texMathZone".a:sfx.'S'
427    let syncname = "texSyncMathZone".a:sfx.'S'
428    exe "syn cluster texMathZones add=".grpname
429    if s:tex_fast =~# 'M'
430     exe 'syn region '.grpname.' start='."'".'\\begin\s*{\s*'.a:mathzone.'\*\s*}'."'".' end='."'".'\\end\s*{\s*'.a:mathzone.'\*\s*}'."'".' keepend contains=@texMathZoneGroup'.foldcmd
431     exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
432     exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
433    endif
434    exe 'hi def link '.grpname.' texMath'
435   endif
436 endfun
437
438 " Standard Math Zones: {{{2
439 call TexNewMathZone("A","align",1)
440 call TexNewMathZone("B","alignat",1)
441 call TexNewMathZone("C","displaymath",1)
442 call TexNewMathZone("D","eqnarray",1)
443 call TexNewMathZone("E","equation",1)
444 call TexNewMathZone("F","flalign",1)
445 call TexNewMathZone("G","gather",1)
446 call TexNewMathZone("H","math",1)
447 call TexNewMathZone("I","multline",1)
448 call TexNewMathZone("J","xalignat",1)
449 call TexNewMathZone("K","xxalignat",0)
450
451 " Inline Math Zones: {{{2
452 if s:tex_fast =~# 'M'
453  if has("conceal") && &enc == 'utf-8' && s:tex_conceal =~# 'd'
454   syn region texMathZoneV	matchgroup=Delimiter start="\\("			matchgroup=Delimiter	end="\\)\|%stopzone\>"			keepend concealends contains=@texMathZoneGroup
455   syn region texMathZoneW	matchgroup=Delimiter start="\\\["			matchgroup=Delimiter	end="\\]\|%stopzone\>"			keepend concealends contains=@texMathZoneGroup
456   syn region texMathZoneX	matchgroup=Delimiter start="\$" skip="\\\\\|\\\$"	matchgroup=Delimiter	end="\$"	end="%stopzone\>"		concealends contains=@texMathZoneGroup
457   syn region texMathZoneY	matchgroup=Delimiter start="\$\$" 			matchgroup=Delimiter	end="\$\$"	end="%stopzone\>"	keepend concealends contains=@texMathZoneGroup
458  else
459   syn region texMathZoneV	matchgroup=Delimiter start="\\("			matchgroup=Delimiter	end="\\)\|%stopzone\>"			keepend contains=@texMathZoneGroup
460   syn region texMathZoneW	matchgroup=Delimiter start="\\\["			matchgroup=Delimiter	end="\\]\|%stopzone\>"			keepend contains=@texMathZoneGroup
461   syn region texMathZoneX	matchgroup=Delimiter start="\$" skip="\%(\\\\\)*\\\$"	matchgroup=Delimiter	end="\$"	end="%stopzone\>"		contains=@texMathZoneGroup
462   syn region texMathZoneY	matchgroup=Delimiter start="\$\$" 			matchgroup=Delimiter	end="\$\$"	end="%stopzone\>"	keepend	contains=@texMathZoneGroup
463  endif
464  syn region texMathZoneZ	matchgroup=texStatement start="\\ensuremath\s*{"	matchgroup=texStatement	end="}"		end="%stopzone\>"	contains=@texMathZoneGroup
465 endif
466
467 syn match texMathOper		"[_^=]" contained
468
469 " Text Inside Math Zones: {{{2
470 if s:tex_fast =~# 'M'
471  if !exists("g:tex_nospell") || !g:tex_nospell
472   syn region texMathText matchgroup=texStatement start='\\\(\(inter\)\=text\|mbox\)\s*{'	end='}'	contains=@texFoldGroup,@Spell
473  else
474   syn region texMathText matchgroup=texStatement start='\\\(\(inter\)\=text\|mbox\)\s*{'	end='}'	contains=@texFoldGroup
475  endif
476 endif
477
478 " \left..something.. and \right..something.. support: {{{2
479 syn match   texMathDelimBad	contained		"\S"
480 if has("conceal") && &enc == 'utf-8' && s:tex_conceal =~# 'm'
481  syn match   texMathDelim	contained		"\\left\["
482  syn match   texMathDelim	contained		"\\left\\{"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad contains=texMathSymbol cchar={
483  syn match   texMathDelim	contained		"\\right\\}"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad contains=texMathSymbol cchar=}
484  let s:texMathDelimList=[
485     \ ['<'            , '<'] ,
486     \ ['>'            , '>'] ,
487     \ ['('            , '('] ,
488     \ [')'            , ')'] ,
489     \ ['\['           , '['] ,
490     \ [']'            , ']'] ,
491     \ ['\\{'          , '{'] ,
492     \ ['\\}'          , '}'] ,
493     \ ['|'            , '|'] ,
494     \ ['\\|'          , '‖'] ,
495     \ ['\\backslash'  , '\'] ,
496     \ ['\\downarrow'  , '↓'] ,
497     \ ['\\Downarrow'  , '⇓'] ,
498     \ ['\\lbrace'     , '['] ,
499     \ ['\\lceil'      , '⌈'] ,
500     \ ['\\lfloor'     , '⌊'] ,
501     \ ['\\lgroup'     , '⌊'] ,
502     \ ['\\lmoustache' , '⎛'] ,
503     \ ['\\rbrace'     , ']'] ,
504     \ ['\\rceil'      , '⌉'] ,
505     \ ['\\rfloor'     , '⌋'] ,
506     \ ['\\rgroup'     , '⌋'] ,
507     \ ['\\rmoustache' , '⎞'] ,
508     \ ['\\uparrow'    , '↑'] ,
509     \ ['\\Uparrow'    , '↑'] ,
510     \ ['\\updownarrow', '↕'] ,
511     \ ['\\Updownarrow', '⇕']]
512  if &ambw == "double" || exists("g:tex_usedblwidth")
513    let s:texMathDelimList= s:texMathDelimList + [
514     \ ['\\langle'     , '〈'] ,
515     \ ['\\rangle'     , '〉'] ,
516  else
517    let s:texMathDelimList= s:texMathDelimList + [
518     \ ['\\langle'     , '<'] ,
519     \ ['\\rangle'     , '>']]
520  endif
521  syn match texMathDelim	'\\[bB]igg\=[lr]' contained nextgroup=texMathDelimBad
522  for texmath in s:texMathDelimList
523   exe "syn match texMathDelim	'\\\\[bB]igg\\=[lr]\\=".texmath[0]."'	contained conceal cchar=".texmath[1]
524  endfor
525
526 else
527  syn match   texMathDelim	contained		"\\\(left\|right\)\>"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad
528  syn match   texMathDelim	contained		"\\[bB]igg\=[lr]\=\>"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad
529  syn match   texMathDelimSet2	contained	"\\"		nextgroup=texMathDelimKey,texMathDelimBad
530  syn match   texMathDelimSet1	contained	"[<>()[\]|/.]\|\\[{}|]"
531  syn keyword texMathDelimKey	contained	backslash       lceil           lVert           rgroup          uparrow
532  syn keyword texMathDelimKey	contained	downarrow       lfloor          rangle          rmoustache      Uparrow
533  syn keyword texMathDelimKey	contained	Downarrow       lgroup          rbrace          rvert           updownarrow
534  syn keyword texMathDelimKey	contained	langle          lmoustache      rceil           rVert           Updownarrow
535  syn keyword texMathDelimKey	contained	lbrace          lvert           rfloor
536 endif
537 syn match   texMathDelim	contained		"\\\(left\|right\)arrow\>\|\<\([aA]rrow\|brace\)\=vert\>"
538 syn match   texMathDelim	contained		"\\lefteqn\>"
539endif
540
541" Special TeX characters  ( \$ \& \% \# \{ \} \_ \S \P ) : {{{1
542syn match texSpecialChar	"\\[$&%#{}_]"
543if b:tex_stylish
544  syn match texSpecialChar	"\\[SP@][^a-zA-Z@]"me=e-1
545else
546  syn match texSpecialChar	"\\[SP@]\A"me=e-1
547endif
548syn match texSpecialChar	"\\\\"
549if !exists("g:tex_no_math")
550 syn match texOnlyMath		"[_^]"
551endif
552syn match texSpecialChar	"\^\^[0-9a-f]\{2}\|\^\^\S"
553if s:tex_conceal !~# 'S'
554 syn match texSpecialChar	'\\glq\>'	contained conceal cchar=‚
555 syn match texSpecialChar	'\\grq\>'	contained conceal cchar=‘
556 syn match texSpecialChar	'\\glqq\>'	contained conceal cchar=„
557 syn match texSpecialChar	'\\grqq\>'	contained conceal cchar=“
558 syn match texSpecialChar	'\\hyp\>'	contained conceal cchar=-
559endif
560
561" Comments: {{{1
562"    Normal TeX LaTeX     :   %....
563"    Documented TeX Format:  ^^A...	-and-	leading %s (only)
564if !s:tex_comment_nospell
565 syn cluster texCommentGroup	contains=texTodo,@Spell
566else
567 syn cluster texCommentGroup	contains=texTodo,@NoSpell
568endif
569syn case ignore
570syn keyword texTodo		contained		combak	fixme	todo	xxx
571syn case match
572if s:extfname == "dtx"
573 syn match texComment		"\^\^A.*$"	contains=@texCommentGroup
574 syn match texComment		"^%\+"		contains=@texCommentGroup
575else
576 if s:tex_fold_enabled
577  " allows syntax-folding of 2 or more contiguous comment lines
578  " single-line comments are not folded
579  syn match  texComment	"%.*$"				contains=@texCommentGroup
580  if s:tex_fast =~# 'c'
581   TexFold syn region texComment						start="^\zs\s*%.*\_s*%"	skip="^\s*%"	end='^\ze\s*[^%]'	contains=@texCommentGroup
582   TexFold syn region texNoSpell	contained	matchgroup=texComment	start="%\s*nospell\s*{"	end="%\s*nospell\s*}"			contains=@texFoldGroup,@NoSpell
583  endif
584 else
585  syn match texComment		"%.*$"			contains=@texCommentGroup
586  if s:tex_fast =~# 'c'
587   syn region texNoSpell		contained	matchgroup=texComment start="%\s*nospell\s*{"	end="%\s*nospell\s*}"	contains=@texFoldGroup,@NoSpell
588  endif
589 endif
590endif
591
592" %begin-include ... %end-include acts like a texDocZone for \include'd files.  Permits spell checking, for example, in such files.
593if !s:tex_nospell
594 TexFold syn region texDocZone			matchgroup=texSection start='^\s*%begin-include\>'	 end='^\s*%end-include\>'											contains=@texFoldGroup,@texDocGroup,@Spell
595else
596 TexFold syn region texDocZone			matchgroup=texSection start='^\s*%begin-include\>'	 end='^\s*%end-include\>'											contains=@texFoldGroup,@texDocGroup
597endif
598
599" Separate lines used for verb` and verb# so that the end conditions {{{1
600" will appropriately terminate.
601" If g:tex_verbspell exists, then verbatim texZones will permit spellchecking there.
602if s:tex_fast =~# 'v'
603  if exists("g:tex_verbspell") && g:tex_verbspell
604   syn region texZone		start="\\begin{[vV]erbatim}"		end="\\end{[vV]erbatim}\|%stopzone\>"	contains=@Spell
605   " listings package:
606   syn region texZone		start="\\begin{lstlisting}"		end="\\end{lstlisting}\|%stopzone\>"	contains=@Spell
607   if b:tex_stylish
608    syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z@]\)"	end="\z1\|%stopzone\>"			contains=@Spell
609   else
610    syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z]\)"	end="\z1\|%stopzone\>"			contains=@Spell
611   endif
612  else
613   syn region texZone		start="\\begin{[vV]erbatim}"		end="\\end{[vV]erbatim}\|%stopzone\>"
614   if b:tex_stylish
615     syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z@]\)"	end="\z1\|%stopzone\>"
616   else
617     syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z]\)"	end="\z1\|%stopzone\>"
618   endif
619  endif
620endif
621
622" Tex Reference Zones: {{{1
623if s:tex_fast =~# 'r'
624  syn region texZone		matchgroup=texStatement start="@samp{"			end="}\|%stopzone\>"	contains=@texRefGroup
625  syn region texRefZone		matchgroup=texStatement start="\\nocite{"		end="}\|%stopzone\>"	contains=@texRefGroup
626  syn region texRefZone		matchgroup=texStatement start="\\bibliography{"		end="}\|%stopzone\>"	contains=@texRefGroup
627  syn region texRefZone		matchgroup=texStatement start="\\label{"		end="}\|%stopzone\>"	contains=@texRefGroup
628  syn region texRefZone		matchgroup=texStatement start="\\\(page\|eq\)ref{"	end="}\|%stopzone\>"	contains=@texRefGroup
629  syn region texRefZone		matchgroup=texStatement start="\\v\=ref{"		end="}\|%stopzone\>"	contains=@texRefGroup
630  syn region texRefOption	contained	matchgroup=Delimiter start='\[' end=']'		contains=@texRefGroup,texRefZone	nextgroup=texRefOption,texCite
631  syn region texCite		contained	matchgroup=Delimiter start='{' end='}'		contains=@texRefGroup,texRefZone,texCite
632endif
633syn match  texRefZone		'\\cite\%([tp]\*\=\)\=' nextgroup=texRefOption,texCite
634
635" Handle newcommand, newenvironment : {{{1
636syn match  texNewCmd				"\\newcommand\>"			nextgroup=texCmdName skipwhite skipnl
637if s:tex_fast =~# 'V'
638  syn region texCmdName contained matchgroup=Delimiter start="{"rs=s+1  end="}"		nextgroup=texCmdArgs,texCmdBody skipwhite skipnl
639  syn region texCmdArgs contained matchgroup=Delimiter start="\["rs=s+1 end="]"		nextgroup=texCmdBody skipwhite skipnl
640  syn region texCmdBody contained matchgroup=Delimiter start="{"rs=s+1 skip="\\\\\|\\[{}]"	matchgroup=Delimiter end="}" contains=@texCmdGroup
641endif
642syn match  texNewEnv				"\\newenvironment\>"			nextgroup=texEnvName skipwhite skipnl
643if s:tex_fast =~# 'V'
644  syn region texEnvName contained matchgroup=Delimiter start="{"rs=s+1  end="}"		nextgroup=texEnvBgn skipwhite skipnl
645  syn region texEnvBgn  contained matchgroup=Delimiter start="{"rs=s+1  end="}"		nextgroup=texEnvEnd skipwhite skipnl contains=@texEnvGroup
646  syn region texEnvEnd  contained matchgroup=Delimiter start="{"rs=s+1  end="}"		skipwhite skipnl contains=@texEnvGroup
647endif
648
649" Definitions/Commands: {{{1
650syn match texDefCmd				"\\def\>"				nextgroup=texDefName skipwhite skipnl
651if b:tex_stylish
652  syn match texDefName contained		"\\[a-zA-Z@]\+"				nextgroup=texDefParms,texCmdBody skipwhite skipnl
653  syn match texDefName contained		"\\[^a-zA-Z@]"				nextgroup=texDefParms,texCmdBody skipwhite skipnl
654else
655  syn match texDefName contained		"\\\a\+"				nextgroup=texDefParms,texCmdBody skipwhite skipnl
656  syn match texDefName contained		"\\\A"					nextgroup=texDefParms,texCmdBody skipwhite skipnl
657endif
658syn match texDefParms  contained		"#[^{]*"	contains=texDefParm	nextgroup=texCmdBody skipwhite skipnl
659syn match  texDefParm  contained		"#\d\+"
660
661" TeX Lengths: {{{1
662syn match  texLength		"\<\d\+\([.,]\d\+\)\=\s*\(true\)\=\s*\(bp\|cc\|cm\|dd\|em\|ex\|in\|mm\|pc\|pt\|sp\)\>"
663
664" TeX String Delimiters: {{{1
665syn match texString		"\(``\|''\|,,\)"
666
667" makeatletter -- makeatother sections
668if !s:tex_no_error
669 if s:tex_fast =~# 'S'
670  syn region texStyle			matchgroup=texStatement start='\\makeatletter' end='\\makeatother'	contains=@texStyleGroup contained
671 endif
672 syn match  texStyleStatement		"\\[a-zA-Z@]\+"	contained
673 if s:tex_fast =~# 'S'
674  syn region texStyleMatcher		matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"		contains=@texStyleGroup,texError	contained
675  syn region texStyleMatcher		matchgroup=Delimiter start="\["				end="]"		contains=@texStyleGroup,texError	contained
676 endif
677endif
678
679" Conceal mode support (supports set cole=2) {{{1
680if has("conceal") && &enc == 'utf-8'
681
682 " Math Symbols {{{2
683 " (many of these symbols were contributed by Björn Winckler)
684 if s:tex_conceal =~# 'm'
685  let s:texMathList=[
686    \ ['|'		, '‖'],
687    \ ['aleph'		, 'ℵ'],
688    \ ['amalg'		, '∐'],
689    \ ['angle'		, '∠'],
690    \ ['approx'		, '≈'],
691    \ ['ast'		, '∗'],
692    \ ['asymp'		, '≍'],
693    \ ['backepsilon'	, '∍'],
694    \ ['backsimeq'	, '≃'],
695    \ ['backslash'	, '∖'],
696    \ ['barwedge'	, '⊼'],
697    \ ['because'	, '∵'],
698    \ ['beth'           , 'ܒ'],
699    \ ['between'	, '≬'],
700    \ ['bigcap'		, '∩'],
701    \ ['bigcirc'	, '○'],
702    \ ['bigcup'		, '∪'],
703    \ ['bigodot'	, '⊙'],
704    \ ['bigoplus'	, '⊕'],
705    \ ['bigotimes'	, '⊗'],
706    \ ['bigsqcup'	, '⊔'],
707    \ ['bigtriangledown', '∇'],
708    \ ['bigtriangleup'	, '∆'],
709    \ ['bigvee'		, '⋁'],
710    \ ['bigwedge'	, '⋀'],
711    \ ['blacksquare'	, '∎'],
712    \ ['bot'		, '⊥'],
713    \ ['bowtie'	        , '⋈'],
714    \ ['boxdot'		, '⊡'],
715    \ ['boxminus'	, '⊟'],
716    \ ['boxplus'	, '⊞'],
717    \ ['boxtimes'	, '⊠'],
718    \ ['Box'            , '☐'],
719    \ ['bullet'	        , '•'],
720    \ ['bumpeq'		, '≏'],
721    \ ['Bumpeq'		, '≎'],
722    \ ['cap'		, '∩'],
723    \ ['Cap'		, '⋒'],
724    \ ['cdot'		, '·'],
725    \ ['cdots'		, '⋯'],
726    \ ['circ'		, '∘'],
727    \ ['circeq'		, '≗'],
728    \ ['circlearrowleft', '↺'],
729    \ ['circlearrowright', '↻'],
730    \ ['circledast'	, '⊛'],
731    \ ['circledcirc'	, '⊚'],
732    \ ['clubsuit'	, '♣'],
733    \ ['complement'	, '∁'],
734    \ ['cong'		, '≅'],
735    \ ['coprod'		, '∐'],
736    \ ['copyright'	, '©'],
737    \ ['cup'		, '∪'],
738    \ ['Cup'		, '⋓'],
739    \ ['curlyeqprec'	, '⋞'],
740    \ ['curlyeqsucc'	, '⋟'],
741    \ ['curlyvee'	, '⋎'],
742    \ ['curlywedge'	, '⋏'],
743    \ ['dagger'	        , '†'],
744    \ ['dashv'		, '⊣'],
745    \ ['ddagger'	, '‡'],
746    \ ['ddots'	        , '⋱'],
747    \ ['diamond'	, '⋄'],
748    \ ['diamondsuit'	, '♢'],
749    \ ['div'		, '÷'],
750    \ ['doteq'		, '≐'],
751    \ ['doteqdot'	, '≑'],
752    \ ['dotplus'	, '∔'],
753    \ ['dots'		, '…'],
754    \ ['dotsb'		, '⋯'],
755    \ ['dotsc'		, '…'],
756    \ ['dotsi'		, '⋯'],
757    \ ['dotso'		, '…'],
758    \ ['doublebarwedge'	, '⩞'],
759    \ ['downarrow'	, '↓'],
760    \ ['Downarrow'	, '⇓'],
761    \ ['ell'		, 'ℓ'],
762    \ ['emptyset'	, '∅'],
763    \ ['eqcirc'		, '≖'],
764    \ ['eqsim'		, '≂'],
765    \ ['eqslantgtr'	, '⪖'],
766    \ ['eqslantless'	, '⪕'],
767    \ ['equiv'		, '≡'],
768    \ ['eth'            , 'ð'],
769    \ ['exists'		, '∃'],
770    \ ['fallingdotseq'	, '≒'],
771    \ ['flat'		, '♭'],
772    \ ['forall'		, '∀'],
773    \ ['frown'		, '⁔'],
774    \ ['ge'		, '≥'],
775    \ ['geq'		, '≥'],
776    \ ['geqq'		, '≧'],
777    \ ['gets'		, '←'],
778    \ ['gimel'          , 'ℷ'],
779    \ ['gg'		, '⟫'],
780    \ ['gneqq'		, '≩'],
781    \ ['gtrdot'		, '⋗'],
782    \ ['gtreqless'	, '⋛'],
783    \ ['gtrless'	, '≷'],
784    \ ['gtrsim'		, '≳'],
785    \ ['hbar'		, 'ℏ'],
786    \ ['heartsuit'	, '♡'],
787    \ ['hookleftarrow'	, '↩'],
788    \ ['hookrightarrow'	, '↪'],
789    \ ['iff'            , '⇔'],
790    \ ['iiint'		, '∭'],
791    \ ['iint'		, '∬'],
792    \ ['Im'		, 'ℑ'],
793    \ ['imath'		, 'ɩ'],
794    \ ['implies'	, '⇒'],
795    \ ['in'		, '∈'],
796    \ ['infty'		, '∞'],
797    \ ['int'		, '∫'],
798    \ ['jmath'		, '��'],
799    \ ['land'		, '∧'],
800    \ ['lceil'		, '⌈'],
801    \ ['ldots'		, '…'],
802    \ ['le'		, '≤'],
803    \ ['leadsto'	, '↝'],
804    \ ['left('		, '('],
805    \ ['left\['		, '['],
806    \ ['left\\{'	, '{'],
807    \ ['leftarrow'	, '←'],
808    \ ['Leftarrow'	, '⇐'],
809    \ ['leftarrowtail'	, '↢'],
810    \ ['leftharpoondown', '↽'],
811    \ ['leftharpoonup'	, '↼'],
812    \ ['leftrightarrow'	, '↔'],
813    \ ['Leftrightarrow'	, '⇔'],
814    \ ['leftrightsquigarrow', '↭'],
815    \ ['leftthreetimes'	, '⋋'],
816    \ ['leq'		, '≤'],
817    \ ['leq'		, '≤'],
818    \ ['leqq'		, '≦'],
819    \ ['lessdot'	, '⋖'],
820    \ ['lesseqgtr'	, '⋚'],
821    \ ['lesssim'	, '≲'],
822    \ ['lfloor'		, '⌊'],
823    \ ['ll'		, '≪'],
824    \ ['lmoustache'     , '╭'],
825    \ ['lneqq'		, '≨'],
826    \ ['lor'		, '∨'],
827    \ ['ltimes'		, '⋉'],
828    \ ['mapsto'		, '↦'],
829    \ ['measuredangle'	, '∡'],
830    \ ['mid'		, '∣'],
831    \ ['models'		, '╞'],
832    \ ['mp'		, '∓'],
833    \ ['nabla'		, '∇'],
834    \ ['natural'	, '♮'],
835    \ ['ncong'		, '≇'],
836    \ ['ne'		, '≠'],
837    \ ['nearrow'	, '↗'],
838    \ ['neg'		, '¬'],
839    \ ['neq'		, '≠'],
840    \ ['nexists'	, '∄'],
841    \ ['ngeq'		, '≱'],
842    \ ['ngeqq'		, '≱'],
843    \ ['ngtr'		, '≯'],
844    \ ['ni'		, '∋'],
845    \ ['nleftarrow'	, '↚'],
846    \ ['nLeftarrow'	, '⇍'],
847    \ ['nLeftrightarrow', '⇎'],
848    \ ['nleq'		, '≰'],
849    \ ['nleqq'		, '≰'],
850    \ ['nless'		, '≮'],
851    \ ['nmid'		, '∤'],
852    \ ['notin'		, '∉'],
853    \ ['nparallel'      , '∦'],
854    \ ['nprec'		, '⊀'],
855    \ ['nrightarrow'	, '↛'],
856    \ ['nRightarrow'	, '⇏'],
857    \ ['nsim'		, '≁'],
858    \ ['nsucc'		, '⊁'],
859    \ ['ntriangleleft'	, '⋪'],
860    \ ['ntrianglelefteq', '⋬'],
861    \ ['ntriangleright'	, '⋫'],
862    \ ['ntrianglerighteq', '⋭'],
863    \ ['nvdash'		, '⊬'],
864    \ ['nvDash'		, '⊭'],
865    \ ['nVdash'		, '⊮'],
866    \ ['nwarrow'	, '↖'],
867    \ ['odot'		, '⊙'],
868    \ ['oint'		, '∮'],
869    \ ['ominus'		, '⊖'],
870    \ ['oplus'		, '⊕'],
871    \ ['oslash'		, '⊘'],
872    \ ['otimes'		, '⊗'],
873    \ ['owns'		, '∋'],
874    \ ['P'	        , '¶'],
875    \ ['parallel'	, '║'],
876    \ ['partial'	, '∂'],
877    \ ['perp'		, '⊥'],
878    \ ['pitchfork'	, '⋔'],
879    \ ['pm'		, '±'],
880    \ ['prec'		, '≺'],
881    \ ['precapprox'	, '⪷'],
882    \ ['preccurlyeq'	, '≼'],
883    \ ['preceq'		, '⪯'],
884    \ ['precnapprox'	, '⪹'],
885    \ ['precneqq'	, '⪵'],
886    \ ['precsim'	, '≾'],
887    \ ['prime'		, '′'],
888    \ ['prod'		, '∏'],
889    \ ['propto'		, '∝'],
890    \ ['rceil'		, '⌉'],
891    \ ['Re'		, 'ℜ'],
892    \ ['rfloor'		, '⌋'],
893    \ ['right)'		, ')'],
894    \ ['right]'		, ']'],
895    \ ['right\\}'	, '}'],
896    \ ['rightarrow'	, '→'],
897    \ ['Rightarrow'	, '⇒'],
898    \ ['rightarrowtail'	, '↣'],
899    \ ['rightleftharpoons', '⇌'],
900    \ ['rightsquigarrow', '↝'],
901    \ ['rightthreetimes', '⋌'],
902    \ ['risingdotseq'	, '≓'],
903    \ ['rmoustache'     , '╮'],
904    \ ['rtimes'		, '⋊'],
905    \ ['S'	        , '§'],
906    \ ['searrow'	, '↘'],
907    \ ['setminus'	, '∖'],
908    \ ['sharp'		, '♯'],
909    \ ['sim'		, '∼'],
910    \ ['simeq'		, '⋍'],
911    \ ['smile'		, '‿'],
912    \ ['spadesuit'	, '♠'],
913    \ ['sphericalangle'	, '∢'],
914    \ ['sqcap'		, '⊓'],
915    \ ['sqcup'		, '⊔'],
916    \ ['sqsubset'	, '⊏'],
917    \ ['sqsubseteq'	, '⊑'],
918    \ ['sqsupset'	, '⊐'],
919    \ ['sqsupseteq'	, '⊒'],
920    \ ['star'		, '✫'],
921    \ ['subset'		, '⊂'],
922    \ ['Subset'		, '⋐'],
923    \ ['subseteq'	, '⊆'],
924    \ ['subseteqq'	, '⫅'],
925    \ ['subsetneq'	, '⊊'],
926    \ ['subsetneqq'	, '⫋'],
927    \ ['succ'		, '≻'],
928    \ ['succapprox'	, '⪸'],
929    \ ['succcurlyeq'	, '≽'],
930    \ ['succeq'		, '⪰'],
931    \ ['succnapprox'	, '⪺'],
932    \ ['succneqq'	, '⪶'],
933    \ ['succsim'	, '≿'],
934    \ ['sum'		, '∑'],
935    \ ['supset'		, '⊃'],
936    \ ['Supset'		, '⋑'],
937    \ ['supseteq'	, '⊇'],
938    \ ['supseteqq'	, '⫆'],
939    \ ['supsetneq'	, '⊋'],
940    \ ['supsetneqq'	, '⫌'],
941    \ ['surd'		, '√'],
942    \ ['swarrow'	, '↙'],
943    \ ['therefore'	, '∴'],
944    \ ['times'		, '×'],
945    \ ['to'		, '→'],
946    \ ['top'		, '⊤'],
947    \ ['triangle'	, '∆'],
948    \ ['triangleleft'	, '⊲'],
949    \ ['trianglelefteq'	, '⊴'],
950    \ ['triangleq'	, '≜'],
951    \ ['triangleright'	, '⊳'],
952    \ ['trianglerighteq', '⊵'],
953    \ ['twoheadleftarrow', '↞'],
954    \ ['twoheadrightarrow', '↠'],
955    \ ['ulcorner'       , '⌜'],
956    \ ['uparrow'	, '↑'],
957    \ ['Uparrow'	, '⇑'],
958    \ ['updownarrow'	, '↕'],
959    \ ['Updownarrow'	, '⇕'],
960    \ ['urcorner'       , '⌝'],
961    \ ['varnothing'	, '∅'],
962    \ ['vartriangle'	, '∆'],
963    \ ['vdash'		, '⊢'],
964    \ ['vDash'		, '⊨'],
965    \ ['Vdash'		, '⊩'],
966    \ ['vdots'		, '⋮'],
967    \ ['vee'		, '∨'],
968    \ ['veebar'		, '⊻'],
969    \ ['Vvdash'		, '⊪'],
970    \ ['wedge'		, '∧'],
971    \ ['wp'		, '℘'],
972    \ ['wr'		, '≀']]
973"    \ ['jmath'		, 'X']
974"    \ ['uminus'	, 'X']
975"    \ ['uplus'		, 'X']
976  if &ambw == "double" || exists("g:tex_usedblwidth")
977    let s:texMathList= s:texMathList + [
978    \ ['right\\rangle'	, '〉'],
979    \ ['left\\langle'	, '〈']]
980  else
981    let s:texMathList= s:texMathList + [
982    \ ['right\\rangle'	, '>'],
983    \ ['left\\langle'	, '<']]
984  endif
985  for texmath in s:texMathList
986   if texmath[0] =~# '\w$'
987    exe "syn match texMathSymbol '\\\\".texmath[0]."\\>' contained conceal cchar=".texmath[1]
988   else
989    exe "syn match texMathSymbol '\\\\".texmath[0]."' contained conceal cchar=".texmath[1]
990   endif
991  endfor
992
993  if &ambw == "double"
994   syn match texMathSymbol '\\gg\>'			contained conceal cchar=≫
995   syn match texMathSymbol '\\ll\>'			contained conceal cchar=≪
996  else
997   syn match texMathSymbol '\\gg\>'			contained conceal cchar=⟫
998   syn match texMathSymbol '\\ll\>'			contained conceal cchar=⟪
999  endif
1000
1001  syn match texMathSymbol '\\hat{a}' contained conceal cchar=â
1002  syn match texMathSymbol '\\hat{A}' contained conceal cchar=Â
1003  syn match texMathSymbol '\\hat{c}' contained conceal cchar=ĉ
1004  syn match texMathSymbol '\\hat{C}' contained conceal cchar=Ĉ
1005  syn match texMathSymbol '\\hat{e}' contained conceal cchar=ê
1006  syn match texMathSymbol '\\hat{E}' contained conceal cchar=Ê
1007  syn match texMathSymbol '\\hat{g}' contained conceal cchar=ĝ
1008  syn match texMathSymbol '\\hat{G}' contained conceal cchar=Ĝ
1009  syn match texMathSymbol '\\hat{i}' contained conceal cchar=î
1010  syn match texMathSymbol '\\hat{I}' contained conceal cchar=Î
1011  syn match texMathSymbol '\\hat{o}' contained conceal cchar=ô
1012  syn match texMathSymbol '\\hat{O}' contained conceal cchar=Ô
1013  syn match texMathSymbol '\\hat{s}' contained conceal cchar=ŝ
1014  syn match texMathSymbol '\\hat{S}' contained conceal cchar=Ŝ
1015  syn match texMathSymbol '\\hat{u}' contained conceal cchar=û
1016  syn match texMathSymbol '\\hat{U}' contained conceal cchar=Û
1017  syn match texMathSymbol '\\hat{w}' contained conceal cchar=ŵ
1018  syn match texMathSymbol '\\hat{W}' contained conceal cchar=Ŵ
1019  syn match texMathSymbol '\\hat{y}' contained conceal cchar=ŷ
1020  syn match texMathSymbol '\\hat{Y}' contained conceal cchar=Ŷ
1021"  syn match texMathSymbol '\\bar{a}' contained conceal cchar=a̅
1022 endif
1023
1024 " Greek {{{2
1025 if s:tex_conceal =~# 'g'
1026  fun! s:Greek(group,pat,cchar)
1027    exe 'syn match '.a:group." '".a:pat."' contained conceal cchar=".a:cchar
1028  endfun
1029  call s:Greek('texGreek','\\alpha\>'		,'α')
1030  call s:Greek('texGreek','\\beta\>'		,'β')
1031  call s:Greek('texGreek','\\gamma\>'		,'γ')
1032  call s:Greek('texGreek','\\delta\>'		,'δ')
1033  call s:Greek('texGreek','\\epsilon\>'		,'ϵ')
1034  call s:Greek('texGreek','\\varepsilon\>'	,'ε')
1035  call s:Greek('texGreek','\\zeta\>'		,'ζ')
1036  call s:Greek('texGreek','\\eta\>'		,'η')
1037  call s:Greek('texGreek','\\theta\>'		,'θ')
1038  call s:Greek('texGreek','\\vartheta\>'	,'ϑ')
1039  call s:Greek('texGreek','\\kappa\>'		,'κ')
1040  call s:Greek('texGreek','\\lambda\>'		,'λ')
1041  call s:Greek('texGreek','\\mu\>'		,'μ')
1042  call s:Greek('texGreek','\\nu\>'		,'ν')
1043  call s:Greek('texGreek','\\xi\>'		,'ξ')
1044  call s:Greek('texGreek','\\pi\>'		,'π')
1045  call s:Greek('texGreek','\\varpi\>'		,'ϖ')
1046  call s:Greek('texGreek','\\rho\>'		,'ρ')
1047  call s:Greek('texGreek','\\varrho\>'		,'ϱ')
1048  call s:Greek('texGreek','\\sigma\>'		,'σ')
1049  call s:Greek('texGreek','\\varsigma\>'	,'ς')
1050  call s:Greek('texGreek','\\tau\>'		,'τ')
1051  call s:Greek('texGreek','\\upsilon\>'		,'υ')
1052  call s:Greek('texGreek','\\phi\>'		,'ϕ')
1053  call s:Greek('texGreek','\\varphi\>'		,'φ')
1054  call s:Greek('texGreek','\\chi\>'		,'χ')
1055  call s:Greek('texGreek','\\psi\>'		,'ψ')
1056  call s:Greek('texGreek','\\omega\>'		,'ω')
1057  call s:Greek('texGreek','\\Gamma\>'		,'Γ')
1058  call s:Greek('texGreek','\\Delta\>'		,'Δ')
1059  call s:Greek('texGreek','\\Theta\>'		,'Θ')
1060  call s:Greek('texGreek','\\Lambda\>'		,'Λ')
1061  call s:Greek('texGreek','\\Xi\>'		,'Χ')
1062  call s:Greek('texGreek','\\Pi\>'		,'Π')
1063  call s:Greek('texGreek','\\Sigma\>'		,'Σ')
1064  call s:Greek('texGreek','\\Upsilon\>'		,'Υ')
1065  call s:Greek('texGreek','\\Phi\>'		,'Φ')
1066  call s:Greek('texGreek','\\Psi\>'		,'Ψ')
1067  call s:Greek('texGreek','\\Omega\>'		,'Ω')
1068  delfun s:Greek
1069 endif
1070
1071 " Superscripts/Subscripts {{{2
1072 if s:tex_conceal =~# 's'
1073  if s:tex_fast =~# 's'
1074   syn region texSuperscript	matchgroup=Delimiter start='\^{'	skip="\\\\\|\\[{}]" end='}'	contained concealends contains=texSpecialChar,texSuperscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
1075   syn region texSubscript	matchgroup=Delimiter start='_{'		skip="\\\\\|\\[{}]" end='}'	contained concealends contains=texSpecialChar,texSubscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
1076  endif
1077  " s:SuperSub:
1078  fun! s:SuperSub(group,leader,pat,cchar)
1079    if a:pat =~# '^\\' || (a:leader == '\^' && a:pat =~# s:tex_superscripts) || (a:leader == '_' && a:pat =~# s:tex_subscripts)
1080"     call Decho("SuperSub: group<".a:group."> leader<".a:leader."> pat<".a:pat."> cchar<".a:cchar.">")
1081     exe 'syn match '.a:group." '".a:leader.a:pat."' contained conceal cchar=".a:cchar
1082     exe 'syn match '.a:group."s '".a:pat        ."' contained conceal cchar=".a:cchar.' nextgroup='.a:group.'s'
1083    endif
1084  endfun
1085  call s:SuperSub('texSuperscript','\^','0','⁰')
1086  call s:SuperSub('texSuperscript','\^','1','¹')
1087  call s:SuperSub('texSuperscript','\^','2','²')
1088  call s:SuperSub('texSuperscript','\^','3','³')
1089  call s:SuperSub('texSuperscript','\^','4','⁴')
1090  call s:SuperSub('texSuperscript','\^','5','⁵')
1091  call s:SuperSub('texSuperscript','\^','6','⁶')
1092  call s:SuperSub('texSuperscript','\^','7','⁷')
1093  call s:SuperSub('texSuperscript','\^','8','⁸')
1094  call s:SuperSub('texSuperscript','\^','9','⁹')
1095  call s:SuperSub('texSuperscript','\^','a','ᵃ')
1096  call s:SuperSub('texSuperscript','\^','b','ᵇ')
1097  call s:SuperSub('texSuperscript','\^','c','ᶜ')
1098  call s:SuperSub('texSuperscript','\^','d','ᵈ')
1099  call s:SuperSub('texSuperscript','\^','e','ᵉ')
1100  call s:SuperSub('texSuperscript','\^','f','ᶠ')
1101  call s:SuperSub('texSuperscript','\^','g','ᵍ')
1102  call s:SuperSub('texSuperscript','\^','h','ʰ')
1103  call s:SuperSub('texSuperscript','\^','i','ⁱ')
1104  call s:SuperSub('texSuperscript','\^','j','ʲ')
1105  call s:SuperSub('texSuperscript','\^','k','ᵏ')
1106  call s:SuperSub('texSuperscript','\^','l','ˡ')
1107  call s:SuperSub('texSuperscript','\^','m','ᵐ')
1108  call s:SuperSub('texSuperscript','\^','n','ⁿ')
1109  call s:SuperSub('texSuperscript','\^','o','ᵒ')
1110  call s:SuperSub('texSuperscript','\^','p','ᵖ')
1111  call s:SuperSub('texSuperscript','\^','r','ʳ')
1112  call s:SuperSub('texSuperscript','\^','s','ˢ')
1113  call s:SuperSub('texSuperscript','\^','t','ᵗ')
1114  call s:SuperSub('texSuperscript','\^','u','ᵘ')
1115  call s:SuperSub('texSuperscript','\^','v','ᵛ')
1116  call s:SuperSub('texSuperscript','\^','w','ʷ')
1117  call s:SuperSub('texSuperscript','\^','x','ˣ')
1118  call s:SuperSub('texSuperscript','\^','y','ʸ')
1119  call s:SuperSub('texSuperscript','\^','z','ᶻ')
1120  call s:SuperSub('texSuperscript','\^','A','ᴬ')
1121  call s:SuperSub('texSuperscript','\^','B','ᴮ')
1122  call s:SuperSub('texSuperscript','\^','D','ᴰ')
1123  call s:SuperSub('texSuperscript','\^','E','ᴱ')
1124  call s:SuperSub('texSuperscript','\^','G','ᴳ')
1125  call s:SuperSub('texSuperscript','\^','H','ᴴ')
1126  call s:SuperSub('texSuperscript','\^','I','ᴵ')
1127  call s:SuperSub('texSuperscript','\^','J','ᴶ')
1128  call s:SuperSub('texSuperscript','\^','K','ᴷ')
1129  call s:SuperSub('texSuperscript','\^','L','ᴸ')
1130  call s:SuperSub('texSuperscript','\^','M','ᴹ')
1131  call s:SuperSub('texSuperscript','\^','N','ᴺ')
1132  call s:SuperSub('texSuperscript','\^','O','ᴼ')
1133  call s:SuperSub('texSuperscript','\^','P','ᴾ')
1134  call s:SuperSub('texSuperscript','\^','R','ᴿ')
1135  call s:SuperSub('texSuperscript','\^','T','ᵀ')
1136  call s:SuperSub('texSuperscript','\^','U','ᵁ')
1137  call s:SuperSub('texSuperscript','\^','W','ᵂ')
1138  call s:SuperSub('texSuperscript','\^',',','︐')
1139  call s:SuperSub('texSuperscript','\^',':','︓')
1140  call s:SuperSub('texSuperscript','\^',';','︔')
1141  call s:SuperSub('texSuperscript','\^','+','⁺')
1142  call s:SuperSub('texSuperscript','\^','-','⁻')
1143  call s:SuperSub('texSuperscript','\^','<','˂')
1144  call s:SuperSub('texSuperscript','\^','>','˃')
1145  call s:SuperSub('texSuperscript','\^','/','ˊ')
1146  call s:SuperSub('texSuperscript','\^','(','⁽')
1147  call s:SuperSub('texSuperscript','\^',')','⁾')
1148  call s:SuperSub('texSuperscript','\^','\.','˙')
1149  call s:SuperSub('texSuperscript','\^','=','˭')
1150  call s:SuperSub('texSubscript','_','0','₀')
1151  call s:SuperSub('texSubscript','_','1','₁')
1152  call s:SuperSub('texSubscript','_','2','₂')
1153  call s:SuperSub('texSubscript','_','3','₃')
1154  call s:SuperSub('texSubscript','_','4','₄')
1155  call s:SuperSub('texSubscript','_','5','₅')
1156  call s:SuperSub('texSubscript','_','6','₆')
1157  call s:SuperSub('texSubscript','_','7','₇')
1158  call s:SuperSub('texSubscript','_','8','₈')
1159  call s:SuperSub('texSubscript','_','9','₉')
1160  call s:SuperSub('texSubscript','_','a','ₐ')
1161  call s:SuperSub('texSubscript','_','e','ₑ')
1162  call s:SuperSub('texSubscript','_','h','ₕ')
1163  call s:SuperSub('texSubscript','_','i','ᵢ')
1164  call s:SuperSub('texSubscript','_','j','ⱼ')
1165  call s:SuperSub('texSubscript','_','k','ₖ')
1166  call s:SuperSub('texSubscript','_','l','ₗ')
1167  call s:SuperSub('texSubscript','_','m','ₘ')
1168  call s:SuperSub('texSubscript','_','n','ₙ')
1169  call s:SuperSub('texSubscript','_','o','ₒ')
1170  call s:SuperSub('texSubscript','_','p','ₚ')
1171  call s:SuperSub('texSubscript','_','r','ᵣ')
1172  call s:SuperSub('texSubscript','_','s','ₛ')
1173  call s:SuperSub('texSubscript','_','t','ₜ')
1174  call s:SuperSub('texSubscript','_','u','ᵤ')
1175  call s:SuperSub('texSubscript','_','v','ᵥ')
1176  call s:SuperSub('texSubscript','_','x','ₓ')
1177  call s:SuperSub('texSubscript','_',',','︐')
1178  call s:SuperSub('texSubscript','_','+','₊')
1179  call s:SuperSub('texSubscript','_','-','₋')
1180  call s:SuperSub('texSubscript','_','/','ˏ')
1181  call s:SuperSub('texSubscript','_','(','₍')
1182  call s:SuperSub('texSubscript','_',')','₎')
1183  call s:SuperSub('texSubscript','_','\.','‸')
1184  call s:SuperSub('texSubscript','_','r','ᵣ')
1185  call s:SuperSub('texSubscript','_','v','ᵥ')
1186  call s:SuperSub('texSubscript','_','x','ₓ')
1187  call s:SuperSub('texSubscript','_','\\beta\>' ,'ᵦ')
1188  call s:SuperSub('texSubscript','_','\\delta\>','ᵨ')
1189  call s:SuperSub('texSubscript','_','\\phi\>'  ,'ᵩ')
1190  call s:SuperSub('texSubscript','_','\\gamma\>','ᵧ')
1191  call s:SuperSub('texSubscript','_','\\chi\>'  ,'ᵪ')
1192
1193  delfun s:SuperSub
1194 endif
1195
1196 " Accented characters and Ligatures: {{{2
1197 if s:tex_conceal =~# 'a'
1198  if b:tex_stylish
1199   syn match texAccent		"\\[bcdvuH][^a-zA-Z@]"me=e-1
1200   syn match texLigature	"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)[^a-zA-Z@]"me=e-1
1201   syn match texLigature	'--'
1202   syn match texLigature	'---'
1203  else
1204   fun! s:Accents(chr,...)
1205     let i= 1
1206     for accent in ["`","\\'","^",'"','\~','\.','=',"c","H","k","r","u","v"]
1207      if i > a:0
1208       break
1209      endif
1210      if strlen(a:{i}) == 0 || a:{i} == ' ' || a:{i} == '?'
1211       let i= i + 1
1212       continue
1213      endif
1214      if accent =~# '\a'
1215       exe "syn match texAccent '".'\\'.accent.'\(\s*{'.a:chr.'}\|\s\+'.a:chr.'\)'."' conceal cchar=".a:{i}
1216      else
1217       exe "syn match texAccent '".'\\'.accent.'\s*\({'.a:chr.'}\|'.a:chr.'\)'."' conceal cchar=".a:{i}
1218      endif
1219      let i= i + 1
1220     endfor
1221   endfun
1222   "                  \`  \'  \^  \"  \~  \.  \=  \c  \H  \k  \r  \u  \v
1223   call s:Accents('a','à','á','â','ä','ã','ȧ','ā',' ',' ','ą','å','ă','ǎ')
1224   call s:Accents('A','À','Á','Â','Ä','Ã','Ȧ','Ā',' ',' ','Ą','Å','Ă','Ǎ')
1225   call s:Accents('c',' ','ć','ĉ',' ',' ','ċ',' ','ç',' ',' ',' ',' ','č')
1226   call s:Accents('C',' ','Ć','Ĉ',' ',' ','Ċ',' ','Ç',' ',' ',' ',' ','Č')
1227   call s:Accents('d',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ď')
1228   call s:Accents('D',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','Ď')
1229   call s:Accents('e','è','é','ê','ë','ẽ','ė','ē','ȩ',' ','ę',' ','ĕ','ě')
1230   call s:Accents('E','È','É','Ê','Ë','Ẽ','Ė','Ē','Ȩ',' ','Ę',' ','Ĕ','Ě')
1231   call s:Accents('g',' ','ǵ','ĝ',' ',' ','ġ',' ','ģ',' ',' ',' ','ğ','ǧ')
1232   call s:Accents('G',' ','Ǵ','Ĝ',' ',' ','Ġ',' ','Ģ',' ',' ',' ','Ğ','Ǧ')
1233   call s:Accents('h',' ',' ','ĥ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ȟ')
1234   call s:Accents('H',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','Ȟ')
1235   call s:Accents('i','ì','í','î','ï','ĩ','į','ī',' ',' ','į',' ','ĭ','ǐ')
1236   call s:Accents('I','Ì','Í','Î','Ï','Ĩ','İ','Ī',' ',' ','Į',' ','Ĭ','Ǐ')
1237   call s:Accents('J',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ǰ')
1238   call s:Accents('k',' ',' ',' ',' ',' ',' ',' ','ķ',' ',' ',' ',' ','ǩ')
1239   call s:Accents('K',' ',' ',' ',' ',' ',' ',' ','Ķ',' ',' ',' ',' ','Ǩ')
1240   call s:Accents('l',' ','ĺ','ľ',' ',' ',' ',' ','ļ',' ',' ',' ',' ','ľ')
1241   call s:Accents('L',' ','Ĺ','Ľ',' ',' ',' ',' ','Ļ',' ',' ',' ',' ','Ľ')
1242   call s:Accents('n',' ','ń',' ',' ','ñ',' ',' ','ņ',' ',' ',' ',' ','ň')
1243   call s:Accents('N',' ','Ń',' ',' ','Ñ',' ',' ','Ņ',' ',' ',' ',' ','Ň')
1244   call s:Accents('o','ò','ó','ô','ö','õ','ȯ','ō',' ','ő','ǫ',' ','ŏ','ǒ')
1245   call s:Accents('O','Ò','Ó','Ô','Ö','Õ','Ȯ','Ō',' ','Ő','Ǫ',' ','Ŏ','Ǒ')
1246   call s:Accents('r',' ','ŕ',' ',' ',' ',' ',' ','ŗ',' ',' ',' ',' ','ř')
1247   call s:Accents('R',' ','Ŕ',' ',' ',' ',' ',' ','Ŗ',' ',' ',' ',' ','Ř')
1248   call s:Accents('s',' ','ś','ŝ',' ',' ',' ',' ','ş',' ','ȿ',' ',' ','š')
1249   call s:Accents('S',' ','Ś','Ŝ',' ',' ',' ',' ','Ş',' ',' ',' ',' ','Š')
1250   call s:Accents('t',' ',' ',' ',' ',' ',' ',' ','ţ',' ',' ',' ',' ','ť')
1251   call s:Accents('T',' ',' ',' ',' ',' ',' ',' ','Ţ',' ',' ',' ',' ','Ť')
1252   call s:Accents('u','ù','ú','û','ü','ũ',' ','ū',' ','ű','ų','ů','ŭ','ǔ')
1253   call s:Accents('U','Ù','Ú','Û','Ü','Ũ',' ','Ū',' ','Ű','Ų','Ů','Ŭ','Ǔ')
1254   call s:Accents('w',' ',' ','ŵ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ')
1255   call s:Accents('W',' ',' ','Ŵ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ')
1256   call s:Accents('y','ỳ','ý','ŷ','ÿ','ỹ',' ',' ',' ',' ',' ',' ',' ',' ')
1257   call s:Accents('Y','Ỳ','Ý','Ŷ','Ÿ','Ỹ',' ',' ',' ',' ',' ',' ',' ',' ')
1258   call s:Accents('z',' ','ź',' ',' ',' ','ż',' ',' ',' ',' ',' ',' ','ž')
1259   call s:Accents('Z',' ','Ź',' ',' ',' ','Ż',' ',' ',' ',' ',' ',' ','Ž')
1260   call s:Accents('\\i','ì','í','î','ï','ĩ','į',' ',' ',' ',' ',' ','ĭ',' ')
1261   "                    \`  \'  \^  \"  \~  \.  \=  \c  \H  \k  \r  \u  \v
1262   delfun s:Accents
1263   syn match texAccent		'\\aa\>'	conceal cchar=å
1264   syn match texAccent		'\\AA\>'	conceal cchar=Å
1265   syn match texAccent		'\\o\>'		conceal cchar=ø
1266   syn match texAccent		'\\O\>'		conceal cchar=Ø
1267   syn match texLigature	'\\AE\>'	conceal cchar=Æ
1268   syn match texLigature	'\\ae\>'	conceal cchar=æ
1269   syn match texLigature	'\\oe\>'	conceal cchar=œ
1270   syn match texLigature	'\\OE\>'	conceal cchar=Œ
1271   syn match texLigature	'\\ss\>'	conceal cchar=ß
1272   syn match texLigature	'--'		conceal cchar=–
1273   syn match texLigature	'---'		conceal cchar=—
1274  endif
1275 endif
1276endif
1277
1278" ---------------------------------------------------------------------
1279" LaTeX synchronization: {{{1
1280syn sync maxlines=200
1281syn sync minlines=50
1282
1283syn  sync match texSyncStop			groupthere NONE		"%stopzone\>"
1284
1285" Synchronization: {{{1
1286" The $..$ and $$..$$ make for impossible sync patterns
1287" (one can't tell if a "$$" starts or stops a math zone by itself)
1288" The following grouptheres coupled with minlines above
1289" help improve the odds of good syncing.
1290if !exists("g:tex_no_math")
1291 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{abstract}"
1292 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{center}"
1293 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{description}"
1294 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{enumerate}"
1295 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{itemize}"
1296 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{table}"
1297 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{tabular}"
1298 syn sync match texSyncMathZoneA		groupthere NONE		"\\\(sub\)*section\>"
1299endif
1300
1301" ---------------------------------------------------------------------
1302" Highlighting: {{{1
1303
1304" Define the default highlighting. {{{1
1305if !exists("skip_tex_syntax_inits")
1306
1307  " TeX highlighting groups which should share similar highlighting
1308  if !exists("g:tex_no_error")
1309   if !exists("g:tex_no_math")
1310    hi def link texBadMath		texError
1311    hi def link texMathDelimBad		texError
1312    hi def link texMathError		texError
1313    if !b:tex_stylish
1314      hi def link texOnlyMath		texError
1315    endif
1316   endif
1317   hi def link texError			Error
1318  endif
1319
1320  hi texBoldStyle		gui=bold	cterm=bold
1321  hi texItalStyle		gui=italic	cterm=italic
1322  hi texBoldItalStyle		gui=bold,italic cterm=bold,italic
1323  hi texItalBoldStyle		gui=bold,italic cterm=bold,italic
1324  hi def link texCite		texRefZone
1325  hi def link texDefCmd		texDef
1326  hi def link texDefName	texDef
1327  hi def link texDocType	texCmdName
1328  hi def link texDocTypeArgs	texCmdArgs
1329  hi def link texInputFileOpt	texCmdArgs
1330  hi def link texInputCurlies	texDelimiter
1331  hi def link texLigature	texSpecialChar
1332  if !exists("g:tex_no_math")
1333   hi def link texMathDelimSet1	texMathDelim
1334   hi def link texMathDelimSet2	texMathDelim
1335   hi def link texMathDelimKey	texMathDelim
1336   hi def link texMathMatcher	texMath
1337   hi def link texAccent	texStatement
1338   hi def link texGreek		texStatement
1339   hi def link texSuperscript	texStatement
1340   hi def link texSubscript	texStatement
1341   hi def link texSuperscripts 	texSuperscript
1342   hi def link texSubscripts 	texSubscript
1343   hi def link texMathSymbol	texStatement
1344   hi def link texMathZoneV	texMath
1345   hi def link texMathZoneW	texMath
1346   hi def link texMathZoneX	texMath
1347   hi def link texMathZoneY	texMath
1348   hi def link texMathZoneV	texMath
1349   hi def link texMathZoneZ	texMath
1350  endif
1351  hi def link texBeginEnd	texCmdName
1352  hi def link texBeginEndName	texSection
1353  hi def link texSpaceCode	texStatement
1354  hi def link texStyleStatement	texStatement
1355  hi def link texTypeSize	texType
1356  hi def link texTypeStyle	texType
1357
1358   " Basic TeX highlighting groups
1359  hi def link texCmdArgs	Number
1360  hi def link texCmdName	Statement
1361  hi def link texComment	Comment
1362  hi def link texDef		Statement
1363  hi def link texDefParm	Special
1364  hi def link texDelimiter	Delimiter
1365  hi def link texInput		Special
1366  hi def link texInputFile	Special
1367  hi def link texLength		Number
1368  hi def link texMath		Special
1369  hi def link texMathDelim	Statement
1370  hi def link texMathOper	Operator
1371  hi def link texNewCmd		Statement
1372  hi def link texNewEnv		Statement
1373  hi def link texOption		Number
1374  hi def link texRefZone	Special
1375  hi def link texSection	PreCondit
1376  hi def link texSpaceCodeChar	Special
1377  hi def link texSpecialChar	SpecialChar
1378  hi def link texStatement	Statement
1379  hi def link texString		String
1380  hi def link texTodo		Todo
1381  hi def link texType		Type
1382  hi def link texZone		PreCondit
1383
1384endif
1385
1386" Cleanup: {{{1
1387delc TexFold
1388unlet s:extfname
1389let   b:current_syntax = "tex"
1390let &cpo               = s:keepcpo
1391unlet s:keepcpo
1392" vim: ts=8 fdm=marker
1393