xref: /vim-8.2.3635/runtime/syntax/tex.vim (revision 57e4ee4d) 
1" Vim syntax file
2" Language:	TeX
3" Maintainer:	Charles E. Campbell <[email protected]>
4" Last Change:	Nov 14, 2012
5" Version:	75
6" URL:		http://mysite.verizon.net/astronaut/vim/index.html#vimlinks_syntax
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" Version Clears: {{{1
33" For version 5.x: Clear all syntax items
34" For version 6.x: Quit when a syntax file was already loaded
35if version < 600
36  syntax clear
37elseif exists("b:current_syntax")
38  finish
39endif
40let s:keepcpo= &cpo
41set cpo&vim
42scriptencoding utf-8
43
44" Define the default highlighting. {{{1
45" For version 5.7 and earlier: only when not done already
46" For version 5.8 and later: only when an item doesn't have highlighting yet
47if version >= 508 || !exists("did_tex_syntax_inits")
48 let did_tex_syntax_inits = 1
49 if version < 508
50  command -nargs=+ HiLink hi link <args>
51 else
52  command -nargs=+ HiLink hi def link <args>
53 endif
54endif
55if exists("g:tex_tex") && !exists("g:tex_no_error")
56 let g:tex_no_error= 1
57endif
58
59" let user determine which classes of concealment will be supported
60"   a=accents/ligatures d=delimiters m=math symbols  g=Greek  s=superscripts/subscripts
61if !exists("g:tex_conceal")
62 let s:tex_conceal= 'abdmgs'
63else
64 let s:tex_conceal= g:tex_conceal
65endif
66
67" Determine whether or not to use "*.sty" mode {{{1
68" The user may override the normal determination by setting
69"   g:tex_stylish to 1      (for    "*.sty" mode)
70"    or to           0 else (normal "*.tex" mode)
71" or on a buffer-by-buffer basis with b:tex_stylish
72let s:extfname=expand("%:e")
73if exists("g:tex_stylish")
74 let b:tex_stylish= g:tex_stylish
75elseif !exists("b:tex_stylish")
76 if s:extfname == "sty" || s:extfname == "cls" || s:extfname == "clo" || s:extfname == "dtx" || s:extfname == "ltx"
77  let b:tex_stylish= 1
78 else
79  let b:tex_stylish= 0
80 endif
81endif
82
83" handle folding {{{1
84if !exists("g:tex_fold_enabled")
85 let g:tex_fold_enabled= 0
86elseif g:tex_fold_enabled && !has("folding")
87 let g:tex_fold_enabled= 0
88 echomsg "Ignoring g:tex_fold_enabled=".g:tex_fold_enabled."; need to re-compile vim for +fold support"
89endif
90if g:tex_fold_enabled && &fdm == "manual"
91 setl fdm=syntax
92endif
93
94" (La)TeX keywords: uses the characters 0-9,a-z,A-Z,192-255 only... {{{1
95" but _ is the only one that causes problems.
96" One may override this iskeyword setting by providing
97" g:tex_isk
98if exists("g:tex_isk")
99 exe "setlocal isk=".g:tex_isk
100else
101 setlocal isk=48-57,a-z,A-Z,192-255
102endif
103if b:tex_stylish
104  setlocal isk+=@-@
105endif
106if exists("g:tex_nospell") && g:tex_nospell && !exists("g:tex_comment_nospell")
107 let g:tex_comment_nospell= 1
108endif
109
110" Clusters: {{{1
111" --------
112syn cluster texCmdGroup		contains=texCmdBody,texComment,texDefParm,texDelimiter,texDocType,texInput,texLength,texLigature,texMathDelim,texMathOper,texNewCmd,texNewEnv,texRefZone,texSection,texBeginEnd,texBeginEndName,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle
113if !exists("g:tex_no_error")
114 syn cluster texCmdGroup	add=texMathError
115endif
116syn cluster texEnvGroup		contains=texMatcher,texMathDelim,texSpecialChar,texStatement
117syn 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
118syn 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
119syn 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
120if !exists("g:tex_nospell") || !g:tex_nospell
121 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
122 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
123else
124 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
125 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
126endif
127syn cluster texPreambleMatchGroup	contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMatcher,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption
128syn cluster texRefGroup		contains=texMatcher,texComment,texDelimiter
129if !exists("tex_no_math")
130 syn cluster texMathZones	contains=texMathZoneV,texMathZoneW,texMathZoneX,texMathZoneY,texMathZoneZ
131 syn cluster texMatchGroup	add=@texMathZones
132 syn cluster texMathDelimGroup	contains=texMathDelimBad,texMathDelimKey,texMathDelimSet1,texMathDelimSet2
133 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
134 syn cluster texMathZoneGroup	contains=texComment,texDelimiter,texLength,texMathDelim,texMathMatcher,texMathOper,texMathSymbol,texMathText,texRefZone,texSpecialChar,texStatement,texTypeSize,texTypeStyle
135 if !exists("g:tex_no_error")
136  syn cluster texMathMatchGroup	add=texMathError
137  syn cluster texMathZoneGroup	add=texMathError
138 endif
139 syn cluster texMathZoneGroup add=@NoSpell
140 " following used in the \part \chapter \section \subsection \subsubsection
141 " \paragraph \subparagraph \author \title highlighting
142 syn cluster texDocGroup		contains=texPartZone,@texPartGroup
143 syn cluster texPartGroup		contains=texChapterZone,texSectionZone,texParaZone
144 syn cluster texChapterGroup		contains=texSectionZone,texParaZone
145 syn cluster texSectionGroup		contains=texSubSectionZone,texParaZone
146 syn cluster texSubSectionGroup		contains=texSubSubSectionZone,texParaZone
147 syn cluster texSubSubSectionGroup	contains=texParaZone
148 syn cluster texParaGroup		contains=texSubParaZone
149 if has("conceal") && &enc == 'utf-8'
150  syn cluster texMathZoneGroup	add=texGreek,texSuperscript,texSubscript,texMathSymbol
151  syn cluster texMathMatchGroup	add=texGreek,texSuperscript,texSubscript,texMathSymbol
152 endif
153endif
154
155" Try to flag {} and () mismatches: {{{1
156if !exists("g:tex_no_error")
157 syn region texMatcher		matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"		contains=@texMatchGroup,texError
158 syn region texMatcher		matchgroup=Delimiter start="\["				end="]"		contains=@texMatchGroup,texError,@NoSpell
159else
160 syn region texMatcher		matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"		contains=@texMatchGroup
161 syn region texMatcher		matchgroup=Delimiter start="\["				end="]"		contains=@texMatchGroup
162endif
163if !exists("g:tex_nospell") || !g:tex_nospell
164 syn region texParen		start="("						end=")"		contains=@texMatchGroup,@Spell
165else
166 syn region texParen		start="("						end=")"		contains=@texMatchGroup
167endif
168if !exists("g:tex_no_error")
169 syn match  texError		"[}\])]"
170endif
171if !exists("tex_no_math")
172 if !exists("g:tex_no_error")
173  syn match  texMathError	"}"	contained
174 endif
175 syn region texMathMatcher	matchgroup=Delimiter	start="{"          skip="\\\\\|\\}"     end="}" end="%stopzone\>"	contained contains=@texMathMatchGroup
176endif
177
178" TeX/LaTeX keywords: {{{1
179" Instead of trying to be All Knowing, I just match \..alphameric..
180" Note that *.tex files may not have "@" in their \commands
181if exists("g:tex_tex") || b:tex_stylish
182  syn match texStatement	"\\[a-zA-Z@]\+"
183else
184  syn match texStatement	"\\\a\+"
185  if !exists("g:tex_no_error")
186   syn match texError		"\\\a*@[a-zA-Z@]*"
187  endif
188endif
189
190" TeX/LaTeX delimiters: {{{1
191syn match texDelimiter		"&"
192syn match texDelimiter		"\\\\"
193syn match texDelimiter		"[{}]"
194
195" Tex/Latex Options: {{{1
196syn match texOption		"[^\\]\zs#\d\+\|^#\d\+"
197
198" texAccent (tnx to Karim Belabas) avoids annoying highlighting for accents: {{{1
199if b:tex_stylish
200  syn match texAccent		"\\[bcdvuH][^a-zA-Z@]"me=e-1
201  syn match texLigature		"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)[^a-zA-Z@]"me=e-1
202else
203  syn match texAccent		"\\[bcdvuH]\A"me=e-1
204  syn match texLigature		"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)\A"me=e-1
205endif
206syn match texAccent		"\\[bcdvuH]$"
207syn match texAccent		+\\[=^.\~"`']+
208syn match texAccent		+\\['=t'.c^ud"vb~Hr]{\a}+
209syn match texLigature		"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)$"
210
211" \begin{}/\end{} section markers: {{{1
212syn match  texBeginEnd		"\\begin\>\|\\end\>" nextgroup=texBeginEndName
213syn region texBeginEndName	matchgroup=Delimiter	start="{"		end="}"	contained	nextgroup=texBeginEndModifier	contains=texComment
214syn region texBeginEndModifier	matchgroup=Delimiter	start="\["		end="]"	contained	contains=texComment,@NoSpell
215
216" \documentclass, \documentstyle, \usepackage: {{{1
217syn match  texDocType		"\\documentclass\>\|\\documentstyle\>\|\\usepackage\>"	nextgroup=texBeginEndName,texDocTypeArgs
218syn region texDocTypeArgs	matchgroup=Delimiter start="\[" end="]"			contained	nextgroup=texBeginEndName	contains=texComment,@NoSpell
219
220" Preamble syntax-based folding support: {{{1
221if g:tex_fold_enabled && has("folding")
222 syn region texPreamble	transparent fold	start='\zs\\documentclass\>' end='\ze\\begin{document}'	contains=texStyle,@texPreambleMatchGroup
223endif
224
225" TeX input: {{{1
226syn match texInput		"\\input\s\+[a-zA-Z/.0-9_^]\+"hs=s+7				contains=texStatement
227syn match texInputFile		"\\include\(graphics\|list\)\=\(\[.\{-}\]\)\=\s*{.\{-}}"	contains=texStatement,texInputCurlies,texInputFileOpt
228syn match texInputFile		"\\\(epsfig\|input\|usepackage\)\s*\(\[.*\]\)\={.\{-}}"		contains=texStatement,texInputCurlies,texInputFileOpt
229syn match texInputCurlies	"[{}]"								contained
230syn region texInputFileOpt	matchgroup=Delimiter start="\[" end="\]"			contained	contains=texComment
231
232" Type Styles (LaTeX 2.09): {{{1
233syn match texTypeStyle		"\\rm\>"
234syn match texTypeStyle		"\\em\>"
235syn match texTypeStyle		"\\bf\>"
236syn match texTypeStyle		"\\it\>"
237syn match texTypeStyle		"\\sl\>"
238syn match texTypeStyle		"\\sf\>"
239syn match texTypeStyle		"\\sc\>"
240syn match texTypeStyle		"\\tt\>"
241
242" Type Styles: attributes, commands, families, etc (LaTeX2E): {{{1
243if s:tex_conceal !~ 'b'
244 syn match texTypeStyle		"\\textbf\>"
245 syn match texTypeStyle		"\\textit\>"
246endif
247syn match texTypeStyle		"\\textmd\>"
248syn match texTypeStyle		"\\textrm\>"
249syn match texTypeStyle		"\\textsc\>"
250syn match texTypeStyle		"\\textsf\>"
251syn match texTypeStyle		"\\textsl\>"
252syn match texTypeStyle		"\\texttt\>"
253syn match texTypeStyle		"\\textup\>"
254syn match texTypeStyle		"\\emph\>"
255
256syn match texTypeStyle		"\\mathbb\>"
257syn match texTypeStyle		"\\mathbf\>"
258syn match texTypeStyle		"\\mathcal\>"
259syn match texTypeStyle		"\\mathfrak\>"
260syn match texTypeStyle		"\\mathit\>"
261syn match texTypeStyle		"\\mathnormal\>"
262syn match texTypeStyle		"\\mathrm\>"
263syn match texTypeStyle		"\\mathsf\>"
264syn match texTypeStyle		"\\mathtt\>"
265
266syn match texTypeStyle		"\\rmfamily\>"
267syn match texTypeStyle		"\\sffamily\>"
268syn match texTypeStyle		"\\ttfamily\>"
269
270syn match texTypeStyle		"\\itshape\>"
271syn match texTypeStyle		"\\scshape\>"
272syn match texTypeStyle		"\\slshape\>"
273syn match texTypeStyle		"\\upshape\>"
274
275syn match texTypeStyle		"\\bfseries\>"
276syn match texTypeStyle		"\\mdseries\>"
277
278" Some type sizes: {{{1
279syn match texTypeSize		"\\tiny\>"
280syn match texTypeSize		"\\scriptsize\>"
281syn match texTypeSize		"\\footnotesize\>"
282syn match texTypeSize		"\\small\>"
283syn match texTypeSize		"\\normalsize\>"
284syn match texTypeSize		"\\large\>"
285syn match texTypeSize		"\\Large\>"
286syn match texTypeSize		"\\LARGE\>"
287syn match texTypeSize		"\\huge\>"
288syn match texTypeSize		"\\Huge\>"
289
290" Spacecodes (TeX'isms): {{{1
291" \mathcode`\^^@="2201  \delcode`\(="028300  \sfcode`\)=0 \uccode`X=`X  \lccode`x=`x
292syn match texSpaceCode		"\\\(math\|cat\|del\|lc\|sf\|uc\)code`"me=e-1 nextgroup=texSpaceCodeChar
293syn match texSpaceCodeChar    "`\\\=.\(\^.\)\==\(\d\|\"\x\{1,6}\|`.\)"	contained
294
295" Sections, subsections, etc: {{{1
296if !exists("g:tex_nospell") || !g:tex_nospell
297 if g:tex_fold_enabled && has("folding")
298  syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											fold contains=@texFoldGroup,@texDocGroup,@Spell
299  syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								fold contains=@texFoldGroup,@texPartGroup,@Spell
300  syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							fold contains=@texFoldGroup,@texChapterGroup,@Spell
301  syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					fold contains=@texFoldGroup,@texSectionGroup,@Spell
302  syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSectionGroup,@Spell
303  syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSubSectionGroup,@Spell
304  syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			fold contains=@texFoldGroup,@texParaGroup,@Spell
305  syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	fold contains=@texFoldGroup,@Spell
306  syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													fold contains=@texFoldGroup,@Spell
307  syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											fold contains=@texFoldGroup,@Spell
308 else
309  syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											contains=@texFoldGroup,@texDocGroup,@Spell
310  syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								contains=@texFoldGroup,@texPartGroup,@Spell
311  syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							contains=@texFoldGroup,@texChapterGroup,@Spell
312  syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					contains=@texFoldGroup,@texSectionGroup,@Spell
313  syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSectionGroup,@Spell
314  syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSubSectionGroup,@Spell
315  syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			contains=@texFoldGroup,@texParaGroup,@Spell
316  syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	contains=@texFoldGroup,@Spell
317  syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													contains=@texFoldGroup,@Spell
318  syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											contains=@texFoldGroup,@Spell
319 endif
320else
321 if g:tex_fold_enabled && has("folding")
322  syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											fold contains=@texFoldGroup,@texDocGroup
323  syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								fold contains=@texFoldGroup,@texPartGroup
324  syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							fold contains=@texFoldGroup,@texChapterGroup
325  syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					fold contains=@texFoldGroup,@texSectionGroup
326  syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSectionGroup
327  syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				fold contains=@texFoldGroup,@texSubSubSectionGroup
328  syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			fold contains=@texFoldGroup,@texParaGroup
329  syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	fold contains=@texFoldGroup
330  syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													fold contains=@texFoldGroup
331  syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											fold contains=@texFoldGroup
332 else
333  syn region texDocZone			matchgroup=texSection start='\\begin\s*{\s*document\s*}' end='\\end\s*{\s*document\s*}'											contains=@texFoldGroup,@texDocGroup
334  syn region texPartZone		matchgroup=texSection start='\\part\>'			 end='\ze\s*\\\%(part\>\|end\s*{\s*document\s*}\)'								contains=@texFoldGroup,@texPartGroup
335  syn region texChapterZone		matchgroup=texSection start='\\chapter\>'		 end='\ze\s*\\\%(chapter\>\|part\>\|end\s*{\s*document\s*}\)'							contains=@texFoldGroup,@texChapterGroup
336  syn region texSectionZone		matchgroup=texSection start='\\section\>'		 end='\ze\s*\\\%(section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'					contains=@texFoldGroup,@texSectionGroup
337  syn region texSubSectionZone		matchgroup=texSection start='\\subsection\>'		 end='\ze\s*\\\%(\%(sub\)\=section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSectionGroup
338  syn region texSubSubSectionZone	matchgroup=texSection start='\\subsubsection\>'		 end='\ze\s*\\\%(\%(sub\)\{,2}section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'				contains=@texFoldGroup,@texSubSubSectionGroup
339  syn region texParaZone		matchgroup=texSection start='\\paragraph\>'		 end='\ze\s*\\\%(paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'			contains=@texFoldGroup,@texParaGroup
340  syn region texSubParaZone		matchgroup=texSection start='\\subparagraph\>'		 end='\ze\s*\\\%(\%(sub\)\=paragraph\>\|\%(sub\)*section\>\|chapter\>\|part\>\|end\s*{\s*document\s*}\)'	contains=@texFoldGroup
341  syn region texTitle			matchgroup=texSection start='\\\%(author\|title\)\>\s*{' end='}'													contains=@texFoldGroup
342  syn region texAbstract		matchgroup=texSection start='\\begin\s*{\s*abstract\s*}' end='\\end\s*{\s*abstract\s*}'											contains=@texFoldGroup
343 endif
344endif
345
346" particular support for bold and italic {{{1
347if s:tex_conceal =~ 'b'
348 syn region texBoldStyle	matchgroup=texTypeStyle start="\\textbf\s*{" end="}" concealends contains=@texBoldGroup
349 syn region texBoldItalStyle	matchgroup=texTypeStyle start="\\textit\s*{" end="}" concealends contains=@texItalGroup
350 syn region texItalStyle	matchgroup=texTypeStyle start="\\textit\s*{" end="}" concealends contains=@texItalGroup
351 syn region texItalBoldStyle	matchgroup=texTypeStyle start="\\textbf\s*{" end="}" concealends contains=@texBoldGroup
352endif
353
354" Bad Math (mismatched): {{{1
355if !exists("tex_no_math")
356 syn match texBadMath		"\\end\s*{\s*\(array\|gathered\|bBpvV]matrix\|split\|subequations\|smallmatrix\|xxalignat\)\s*}"
357 syn match texBadMath		"\\end\s*{\s*\(align\|alignat\|displaymath\|displaymath\|eqnarray\|equation\|flalign\|gather\|math\|multline\|xalignat\)\*\=\s*}"
358 syn match texBadMath		"\\[\])]"
359endif
360
361" Math Zones: {{{1
362if !exists("tex_no_math")
363 " TexNewMathZone: function creates a mathzone with the given suffix and mathzone name. {{{2
364 "                 Starred forms are created if starform is true.  Starred
365 "                 forms have syntax group and synchronization groups with a
366 "                 "S" appended.  Handles: cluster, syntax, sync, and HiLink.
367 fun! TexNewMathZone(sfx,mathzone,starform)
368   let grpname  = "texMathZone".a:sfx
369   let syncname = "texSyncMathZone".a:sfx
370   if g:tex_fold_enabled
371    let foldcmd= " fold"
372   else
373    let foldcmd= ""
374   endif
375   exe "syn cluster texMathZones add=".grpname
376   exe 'syn region '.grpname.' start='."'".'\\begin\s*{\s*'.a:mathzone.'\s*}'."'".' end='."'".'\\end\s*{\s*'.a:mathzone.'\s*}'."'".' keepend contains=@texMathZoneGroup'.foldcmd
377   exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
378   exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
379   exe 'hi def link '.grpname.' texMath'
380   if a:starform
381    let grpname  = "texMathZone".a:sfx.'S'
382    let syncname = "texSyncMathZone".a:sfx.'S'
383    exe "syn cluster texMathZones add=".grpname
384    exe 'syn region '.grpname.' start='."'".'\\begin\s*{\s*'.a:mathzone.'\*\s*}'."'".' end='."'".'\\end\s*{\s*'.a:mathzone.'\*\s*}'."'".' keepend contains=@texMathZoneGroup'.foldcmd
385    exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
386    exe 'syn sync match '.syncname.' grouphere '.grpname.' "\\begin\s*{\s*'.a:mathzone.'\*\s*}"'
387    exe 'hi def link '.grpname.' texMath'
388   endif
389 endfun
390
391 " Standard Math Zones: {{{2
392 call TexNewMathZone("A","align",1)
393 call TexNewMathZone("B","alignat",1)
394 call TexNewMathZone("C","displaymath",1)
395 call TexNewMathZone("D","eqnarray",1)
396 call TexNewMathZone("E","equation",1)
397 call TexNewMathZone("F","flalign",1)
398 call TexNewMathZone("G","gather",1)
399 call TexNewMathZone("H","math",1)
400 call TexNewMathZone("I","multline",1)
401 call TexNewMathZone("J","subequations",0)
402 call TexNewMathZone("K","xalignat",1)
403 call TexNewMathZone("L","xxalignat",0)
404
405 " Inline Math Zones: {{{2
406 if has("conceal") && &enc == 'utf-8' && s:tex_conceal =~ 'd'
407  syn region texMathZoneV	matchgroup=Delimiter start="\\("			matchgroup=Delimiter end="\\)\|%stopzone\>"	keepend concealends contains=@texMathZoneGroup
408  syn region texMathZoneW	matchgroup=Delimiter start="\\\["			matchgroup=Delimiter end="\\]\|%stopzone\>"	keepend concealends contains=@texMathZoneGroup
409  syn region texMathZoneX	matchgroup=Delimiter start="\$" skip="\\\\\|\\\$"	matchgroup=Delimiter end="\$" end="%stopzone\>"		concealends contains=@texMathZoneGroup
410  syn region texMathZoneY	matchgroup=Delimiter start="\$\$" 			matchgroup=Delimiter end="\$\$" end="%stopzone\>"	concealends keepend		contains=@texMathZoneGroup
411 else
412  syn region texMathZoneV	matchgroup=Delimiter start="\\("			matchgroup=Delimiter end="\\)\|%stopzone\>"	keepend contains=@texMathZoneGroup
413  syn region texMathZoneW	matchgroup=Delimiter start="\\\["			matchgroup=Delimiter end="\\]\|%stopzone\>"	keepend contains=@texMathZoneGroup
414  syn region texMathZoneX	matchgroup=Delimiter start="\$" skip="\\\\\|\\\$"	matchgroup=Delimiter end="\$" end="%stopzone\>"	contains=@texMathZoneGroup
415  syn region texMathZoneY	matchgroup=Delimiter start="\$\$" 			matchgroup=Delimiter end="\$\$" end="%stopzone\>"	keepend		contains=@texMathZoneGroup
416 endif
417 syn region texMathZoneZ	matchgroup=texStatement start="\\ensuremath\s*{"	matchgroup=texStatement end="}" end="%stopzone\>"	contains=@texMathZoneGroup
418
419 syn match texMathOper		"[_^=]" contained
420
421 " Text Inside Math Zones: {{{2
422 if !exists("g:tex_nospell") || !g:tex_nospell
423  syn region texMathText matchgroup=texStatement start='\\\(\(inter\)\=text\|mbox\)\s*{'	end='}'	contains=@texFoldGroup,@Spell
424 else
425  syn region texMathText matchgroup=texStatement start='\\\(\(inter\)\=text\|mbox\)\s*{'	end='}'	contains=@texFoldGroup
426 endif
427
428 " \left..something.. and \right..something.. support: {{{2
429 syn match   texMathDelimBad	contained		"\S"
430 if has("conceal") && &enc == 'utf-8' && s:tex_conceal =~ 'm'
431  syn match   texMathDelim	contained		"\\left\\{\>"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad contains=texMathSymbol cchar={
432  syn match   texMathDelim	contained		"\\right\\}\>"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad contains=texMathSymbol cchar=}
433  let s:texMathDelimList=[
434     \ ['<'            , '<'] ,
435     \ ['>'            , '>'] ,
436     \ ['('            , '('] ,
437     \ [')'            , ')'] ,
438     \ ['\['           , '['] ,
439     \ [']'            , ']'] ,
440     \ ['\\{'          , '{'] ,
441     \ ['\\}'          , '}'] ,
442     \ ['|'            , '|'] ,
443     \ ['\\|'          , '‖'] ,
444     \ ['\\backslash'  , '\'] ,
445     \ ['\\downarrow'  , '↓'] ,
446     \ ['\\Downarrow'  , '⇓'] ,
447     \ ['\\langle'     , '<'] ,
448     \ ['\\lbrace'     , '['] ,
449     \ ['\\lceil'      , '⌈'] ,
450     \ ['\\lfloor'     , '⌊'] ,
451     \ ['\\lgroup'     , '⌊'] ,
452     \ ['\\lmoustache' , '⎛'] ,
453     \ ['\\rangle'     , '>'] ,
454     \ ['\\rbrace'     , ']'] ,
455     \ ['\\rceil'      , '⌉'] ,
456     \ ['\\rfloor'     , '⌋'] ,
457     \ ['\\rgroup'     , '⌋'] ,
458     \ ['\\rmoustache' , '⎞'] ,
459     \ ['\\uparrow'    , '↑'] ,
460     \ ['\\Uparrow'    , '↑'] ,
461     \ ['\\updownarrow', '↕'] ,
462     \ ['\\Updownarrow', '⇕']]
463  syn match texMathDelim	'\\[bB]igg\=[lr]' contained nextgroup=texMathDelimBad
464  for texmath in s:texMathDelimList
465   exe "syn match texMathDelim	'\\\\[bB]igg\\=[lr]\\=".texmath[0]."'	contained conceal cchar=".texmath[1]
466  endfor
467
468 else
469  syn match   texMathDelim	contained		"\\\(left\|right\)\>"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad
470  syn match   texMathDelim	contained		"\\[bB]igg\=[lr]\=\>"	skipwhite nextgroup=texMathDelimSet1,texMathDelimSet2,texMathDelimBad
471  syn match   texMathDelimSet2	contained	"\\"		nextgroup=texMathDelimKey,texMathDelimBad
472  syn match   texMathDelimSet1	contained	"[<>()[\]|/.]\|\\[{}|]"
473  syn keyword texMathDelimKey	contained	backslash       lceil           lVert           rgroup          uparrow
474  syn keyword texMathDelimKey	contained	downarrow       lfloor          rangle          rmoustache      Uparrow
475  syn keyword texMathDelimKey	contained	Downarrow       lgroup          rbrace          rvert           updownarrow
476  syn keyword texMathDelimKey	contained	langle          lmoustache      rceil           rVert           Updownarrow
477  syn keyword texMathDelimKey	contained	lbrace          lvert           rfloor
478 endif
479 syn match   texMathDelim	contained		"\\\(left\|right\)arrow\>\|\<\([aA]rrow\|brace\)\=vert\>"
480 syn match   texMathDelim	contained		"\\lefteqn\>"
481endif
482
483" Special TeX characters  ( \$ \& \% \# \{ \} \_ \S \P ) : {{{1
484syn match texSpecialChar	"\\[$&%#{}_]"
485if b:tex_stylish
486  syn match texSpecialChar	"\\[SP@][^a-zA-Z@]"me=e-1
487else
488  syn match texSpecialChar	"\\[SP@]\A"me=e-1
489endif
490syn match texSpecialChar	"\\\\"
491if !exists("tex_no_math")
492 syn match texOnlyMath		"[_^]"
493endif
494syn match texSpecialChar	"\^\^[0-9a-f]\{2}\|\^\^\S"
495
496" Comments: {{{1
497"    Normal TeX LaTeX     :   %....
498"    Documented TeX Format:  ^^A...	-and-	leading %s (only)
499if !exists("g:tex_comment_nospell") || !g:tex_comment_nospell
500 syn cluster texCommentGroup	contains=texTodo,@Spell
501else
502 syn cluster texCommentGroup	contains=texTodo,@NoSpell
503endif
504syn case ignore
505syn keyword texTodo		contained		combak	fixme	todo	xxx
506syn case match
507if s:extfname == "dtx"
508  syn match texComment		"\^\^A.*$"	contains=@texCommentGroup
509  syn match texComment		"^%\+"		contains=@texCommentGroup
510else
511  if g:tex_fold_enabled
512   " allows syntax-folding of 2 or more contiguous comment lines
513   " single-line comments are not folded
514   syn match  texComment	"%.*$"			contains=@texCommentGroup
515   syn region texComment	start="^\zs\s*%.*\_s*%"	skip="^\s*%"	end='^\ze\s*[^%]' fold
516   syn region texNoSpell	contained fold		matchgroup=texComment start="%\s*nospell\s*{"	end="%\s*nospell\s*}"	contains=@texFoldGroup,@NoSpell
517  else
518   syn match texComment		"%.*$"			contains=@texCommentGroup
519   syn region texNoSpell	contained		matchgroup=texComment start="%\s*nospell\s*{"	end="%\s*nospell\s*}"	contains=@texFoldGroup,@NoSpell
520  endif
521endif
522
523" Separate lines used for verb` and verb# so that the end conditions {{{1
524" will appropriately terminate.
525" If g:tex_verbspell exists, then verbatim texZones will permit spellchecking there.
526if exists("g:tex_verbspell") && g:tex_verbspell
527 syn region texZone		start="\\begin{[vV]erbatim}"		end="\\end{[vV]erbatim}\|%stopzone\>"	contains=@Spell
528 " listings package:
529 syn region texZone		start="\\begin{lstlisting}"		end="\\end{lstlisting}\|%stopzone\>"	contains=@Spell
530 if version < 600
531  syn region texZone		start="\\verb\*\=`"			end="`\|%stopzone\>"			contains=@Spell
532  syn region texZone		start="\\verb\*\=#"			end="#\|%stopzone\>"			contains=@Spell
533 else
534   if b:tex_stylish
535    syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z@]\)"	end="\z1\|%stopzone\>"			contains=@Spell
536   else
537    syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z]\)"	end="\z1\|%stopzone\>"			contains=@Spell
538   endif
539 endif
540else
541 syn region texZone		start="\\begin{[vV]erbatim}"		end="\\end{[vV]erbatim}\|%stopzone\>"
542 if version < 600
543  syn region texZone		start="\\verb\*\=`"			end="`\|%stopzone\>"
544  syn region texZone		start="\\verb\*\=#"			end="#\|%stopzone\>"
545 else
546   if b:tex_stylish
547     syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z@]\)"	end="\z1\|%stopzone\>"
548   else
549     syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z]\)"	end="\z1\|%stopzone\>"
550   endif
551 endif
552endif
553
554" Tex Reference Zones: {{{1
555syn region texZone		matchgroup=texStatement start="@samp{"			end="}\|%stopzone\>"	contains=@texRefGroup
556syn region texRefZone		matchgroup=texStatement start="\\nocite{"		end="}\|%stopzone\>"	contains=@texRefGroup
557syn region texRefZone		matchgroup=texStatement start="\\bibliography{"		end="}\|%stopzone\>"	contains=@texRefGroup
558syn region texRefZone		matchgroup=texStatement start="\\label{"		end="}\|%stopzone\>"	contains=@texRefGroup
559syn region texRefZone		matchgroup=texStatement start="\\\(page\|eq\)ref{"	end="}\|%stopzone\>"	contains=@texRefGroup
560syn region texRefZone		matchgroup=texStatement start="\\v\=ref{"		end="}\|%stopzone\>"	contains=@texRefGroup
561syn match  texRefZone		'\\cite\%([tp]\*\=\)\=' nextgroup=texRefOption,texCite
562syn region texRefOption	contained	matchgroup=Delimiter start='\[' end=']'		contains=@texRefGroup,texRefZone	nextgroup=texRefOption,texCite
563syn region texCite	contained	matchgroup=Delimiter start='{' end='}'		contains=@texRefGroup,texRefZone,texCite
564
565" Handle newcommand, newenvironment : {{{1
566syn match  texNewCmd				"\\newcommand\>"			nextgroup=texCmdName skipwhite skipnl
567syn region texCmdName contained matchgroup=Delimiter start="{"rs=s+1  end="}"		nextgroup=texCmdArgs,texCmdBody skipwhite skipnl
568syn region texCmdArgs contained matchgroup=Delimiter start="\["rs=s+1 end="]"		nextgroup=texCmdBody skipwhite skipnl
569syn region texCmdBody contained matchgroup=Delimiter start="{"rs=s+1 skip="\\\\\|\\[{}]"	matchgroup=Delimiter end="}" contains=@texCmdGroup
570syn match  texNewEnv				"\\newenvironment\>"			nextgroup=texEnvName skipwhite skipnl
571syn region texEnvName contained matchgroup=Delimiter start="{"rs=s+1  end="}"		nextgroup=texEnvBgn skipwhite skipnl
572syn region texEnvBgn  contained matchgroup=Delimiter start="{"rs=s+1  end="}"		nextgroup=texEnvEnd skipwhite skipnl contains=@texEnvGroup
573syn region texEnvEnd  contained matchgroup=Delimiter start="{"rs=s+1  end="}"		skipwhite skipnl contains=@texEnvGroup
574
575" Definitions/Commands: {{{1
576syn match texDefCmd				"\\def\>"				nextgroup=texDefName skipwhite skipnl
577if b:tex_stylish
578  syn match texDefName contained		"\\[a-zA-Z@]\+"				nextgroup=texDefParms,texCmdBody skipwhite skipnl
579  syn match texDefName contained		"\\[^a-zA-Z@]"				nextgroup=texDefParms,texCmdBody skipwhite skipnl
580else
581  syn match texDefName contained		"\\\a\+"				nextgroup=texDefParms,texCmdBody skipwhite skipnl
582  syn match texDefName contained		"\\\A"					nextgroup=texDefParms,texCmdBody skipwhite skipnl
583endif
584syn match texDefParms  contained		"#[^{]*"	contains=texDefParm	nextgroup=texCmdBody skipwhite skipnl
585syn match  texDefParm  contained		"#\d\+"
586
587" TeX Lengths: {{{1
588syn match  texLength		"\<\d\+\([.,]\d\+\)\=\s*\(true\)\=\s*\(bp\|cc\|cm\|dd\|em\|ex\|in\|mm\|pc\|pt\|sp\)\>"
589
590" TeX String Delimiters: {{{1
591syn match texString		"\(``\|''\|,,\)"
592
593" makeatletter -- makeatother sections
594if !exists("g:tex_no_error")
595 syn region texStyle			matchgroup=texStatement start='\\makeatletter' end='\\makeatother'	contains=@texStyleGroup contained
596 syn match  texStyleStatement		"\\[a-zA-Z@]\+"	contained
597 syn region texStyleMatcher		matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"		contains=@texStyleGroup,texError	contained
598 syn region texStyleMatcher		matchgroup=Delimiter start="\["				end="]"		contains=@texStyleGroup,texError	contained
599endif
600
601" Conceal mode support (supports set cole=2) {{{1
602if has("conceal") && &enc == 'utf-8'
603
604 " Math Symbols {{{2
605 " (many of these symbols were contributed by Björn Winckler)
606 if s:tex_conceal =~ 'm'
607  let s:texMathList=[
608    \ ['|'		, '‖'],
609    \ ['aleph'		, 'ℵ'],
610    \ ['amalg'		, '∐'],
611    \ ['angle'		, '∠'],
612    \ ['approx'		, '≈'],
613    \ ['ast'		, '∗'],
614    \ ['asymp'		, '≍'],
615    \ ['backepsilon'	, '∍'],
616    \ ['backsimeq'	, '≃'],
617    \ ['backslash'	, '∖'],
618    \ ['barwedge'	, '⊼'],
619    \ ['because'	, '∵'],
620    \ ['between'	, '≬'],
621    \ ['bigcap'		, '∩'],
622    \ ['bigcirc'	, '○'],
623    \ ['bigcup'		, '∪'],
624    \ ['bigodot'	, '⊙'],
625    \ ['bigoplus'	, '⊕'],
626    \ ['bigotimes'	, '⊗'],
627    \ ['bigsqcup'	, '⊔'],
628    \ ['bigtriangledown', '∇'],
629    \ ['bigtriangleup'	, '∆'],
630    \ ['bigvee'		, '⋁'],
631    \ ['bigwedge'	, '⋀'],
632    \ ['blacksquare'	, '∎'],
633    \ ['bot'		, '⊥'],
634    \ ['bowtie'	        , '⋈'],
635    \ ['boxdot'		, '⊡'],
636    \ ['boxminus'	, '⊟'],
637    \ ['boxplus'	, '⊞'],
638    \ ['boxtimes'	, '⊠'],
639    \ ['bullet'	        , '•'],
640    \ ['bumpeq'		, '≏'],
641    \ ['Bumpeq'		, '≎'],
642    \ ['cap'		, '∩'],
643    \ ['Cap'		, '⋒'],
644    \ ['cdot'		, '·'],
645    \ ['cdots'		, '⋯'],
646    \ ['circ'		, '∘'],
647    \ ['circeq'		, '≗'],
648    \ ['circlearrowleft', '↺'],
649    \ ['circlearrowright', '↻'],
650    \ ['circledast'	, '⊛'],
651    \ ['circledcirc'	, '⊚'],
652    \ ['clubsuit'	, '♣'],
653    \ ['complement'	, '∁'],
654    \ ['cong'		, '≅'],
655    \ ['coprod'		, '∐'],
656    \ ['copyright'	, '©'],
657    \ ['cup'		, '∪'],
658    \ ['Cup'		, '⋓'],
659    \ ['curlyeqprec'	, '⋞'],
660    \ ['curlyeqsucc'	, '⋟'],
661    \ ['curlyvee'	, '⋎'],
662    \ ['curlywedge'	, '⋏'],
663    \ ['dagger'	        , '†'],
664    \ ['dashv'		, '⊣'],
665    \ ['ddagger'	, '‡'],
666    \ ['ddots'	        , '⋱'],
667    \ ['diamond'	, '⋄'],
668    \ ['diamondsuit'	, '♢'],
669    \ ['div'		, '÷'],
670    \ ['doteq'		, '≐'],
671    \ ['doteqdot'	, '≑'],
672    \ ['dotplus'	, '∔'],
673    \ ['dots'		, '…'],
674    \ ['dotsb'		, '⋯'],
675    \ ['dotsc'		, '…'],
676    \ ['dotsi'		, '⋯'],
677    \ ['dotso'		, '…'],
678    \ ['doublebarwedge'	, '⩞'],
679    \ ['downarrow'	, '↓'],
680    \ ['Downarrow'	, '⇓'],
681    \ ['ell'		, 'ℓ'],
682    \ ['emptyset'	, '∅'],
683    \ ['eqcirc'		, '≖'],
684    \ ['eqsim'		, '≂'],
685    \ ['eqslantgtr'	, '⪖'],
686    \ ['eqslantless'	, '⪕'],
687    \ ['equiv'		, '≡'],
688    \ ['exists'		, '∃'],
689    \ ['fallingdotseq'	, '≒'],
690    \ ['flat'		, '♭'],
691    \ ['forall'		, '∀'],
692    \ ['frown'		, '⁔'],
693    \ ['ge'		, '≥'],
694    \ ['geq'		, '≥'],
695    \ ['geqq'		, '≧'],
696    \ ['gets'		, '←'],
697    \ ['gg'		, '⟫'],
698    \ ['gneqq'		, '≩'],
699    \ ['gtrdot'		, '⋗'],
700    \ ['gtreqless'	, '⋛'],
701    \ ['gtrless'	, '≷'],
702    \ ['gtrsim'		, '≳'],
703    \ ['hbar'		, 'ℏ'],
704    \ ['heartsuit'	, '♡'],
705    \ ['hookleftarrow'	, '↩'],
706    \ ['hookrightarrow'	, '↪'],
707    \ ['iiint'		, '∭'],
708    \ ['iint'		, '∬'],
709    \ ['Im'		, 'ℑ'],
710    \ ['imath'		, 'ɩ'],
711    \ ['in'		, '∈'],
712    \ ['infty'		, '∞'],
713    \ ['int'		, '∫'],
714    \ ['lceil'		, '⌈'],
715    \ ['ldots'		, '…'],
716    \ ['le'		, '≤'],
717    \ ['leadsto'	, '↝'],
718    \ ['left('		, '('],
719    \ ['left\['		, '['],
720    \ ['left\\{'	, '{'],
721    \ ['leftarrow'	, '⟵'],
722    \ ['Leftarrow'	, '⟸'],
723    \ ['leftarrowtail'	, '↢'],
724    \ ['leftharpoondown', '↽'],
725    \ ['leftharpoonup'	, '↼'],
726    \ ['leftrightarrow'	, '↔'],
727    \ ['Leftrightarrow'	, '⇔'],
728    \ ['leftrightsquigarrow', '↭'],
729    \ ['leftthreetimes'	, '⋋'],
730    \ ['leq'		, '≤'],
731    \ ['leq'		, '≤'],
732    \ ['leqq'		, '≦'],
733    \ ['lessdot'	, '⋖'],
734    \ ['lesseqgtr'	, '⋚'],
735    \ ['lesssim'	, '≲'],
736    \ ['lfloor'		, '⌊'],
737    \ ['ll'		, '≪'],
738    \ ['lmoustache'     , '╭'],
739    \ ['lneqq'		, '≨'],
740    \ ['ltimes'		, '⋉'],
741    \ ['mapsto'		, '↦'],
742    \ ['measuredangle'	, '∡'],
743    \ ['mid'		, '∣'],
744    \ ['models'		, '╞'],
745    \ ['mp'		, '∓'],
746    \ ['nabla'		, '∇'],
747    \ ['natural'	, '♮'],
748    \ ['ncong'		, '≇'],
749    \ ['ne'		, '≠'],
750    \ ['nearrow'	, '↗'],
751    \ ['neg'		, '¬'],
752    \ ['neq'		, '≠'],
753    \ ['nexists'	, '∄'],
754    \ ['ngeq'		, '≱'],
755    \ ['ngeqq'		, '≱'],
756    \ ['ngtr'		, '≯'],
757    \ ['ni'		, '∋'],
758    \ ['nleftarrow'	, '↚'],
759    \ ['nLeftarrow'	, '⇍'],
760    \ ['nLeftrightarrow', '⇎'],
761    \ ['nleq'		, '≰'],
762    \ ['nleqq'		, '≰'],
763    \ ['nless'		, '≮'],
764    \ ['nmid'		, '∤'],
765    \ ['notin'		, '∉'],
766    \ ['nprec'		, '⊀'],
767    \ ['nrightarrow'	, '↛'],
768    \ ['nRightarrow'	, '⇏'],
769    \ ['nsim'		, '≁'],
770    \ ['nsucc'		, '⊁'],
771    \ ['ntriangleleft'	, '⋪'],
772    \ ['ntrianglelefteq', '⋬'],
773    \ ['ntriangleright'	, '⋫'],
774    \ ['ntrianglerighteq', '⋭'],
775    \ ['nvdash'		, '⊬'],
776    \ ['nvDash'		, '⊭'],
777    \ ['nVdash'		, '⊮'],
778    \ ['nwarrow'	, '↖'],
779    \ ['odot'		, '⊙'],
780    \ ['oint'		, '∮'],
781    \ ['ominus'		, '⊖'],
782    \ ['oplus'		, '⊕'],
783    \ ['oslash'		, '⊘'],
784    \ ['otimes'		, '⊗'],
785    \ ['owns'		, '∋'],
786    \ ['P'	        , '¶'],
787    \ ['parallel'	, '║'],
788    \ ['partial'	, '∂'],
789    \ ['perp'		, '⊥'],
790    \ ['pitchfork'	, '⋔'],
791    \ ['pm'		, '±'],
792    \ ['prec'		, '≺'],
793    \ ['precapprox'	, '⪷'],
794    \ ['preccurlyeq'	, '≼'],
795    \ ['preceq'		, '⪯'],
796    \ ['precnapprox'	, '⪹'],
797    \ ['precneqq'	, '⪵'],
798    \ ['precsim'	, '≾'],
799    \ ['prime'		, '′'],
800    \ ['prod'		, '∏'],
801    \ ['propto'		, '∝'],
802    \ ['rceil'		, '⌉'],
803    \ ['Re'		, 'ℜ'],
804    \ ['rfloor'		, '⌋'],
805    \ ['right)'		, ')'],
806    \ ['right]'		, ']'],
807    \ ['right\\}'	, '}'],
808    \ ['rightarrow'	, '⟶'],
809    \ ['Rightarrow'	, '⟹'],
810    \ ['rightarrowtail'	, '↣'],
811    \ ['rightleftharpoons', '⇌'],
812    \ ['rightsquigarrow', '↝'],
813    \ ['rightthreetimes', '⋌'],
814    \ ['risingdotseq'	, '≓'],
815    \ ['rmoustache'     , '╮'],
816    \ ['rtimes'		, '⋊'],
817    \ ['S'	        , '§'],
818    \ ['searrow'	, '↘'],
819    \ ['setminus'	, '∖'],
820    \ ['sharp'		, '♯'],
821    \ ['sim'		, '∼'],
822    \ ['simeq'		, '⋍'],
823    \ ['smile'		, '‿'],
824    \ ['spadesuit'	, '♠'],
825    \ ['sphericalangle'	, '∢'],
826    \ ['sqcap'		, '⊓'],
827    \ ['sqcup'		, '⊔'],
828    \ ['sqsubset'	, '⊏'],
829    \ ['sqsubseteq'	, '⊑'],
830    \ ['sqsupset'	, '⊐'],
831    \ ['sqsupseteq'	, '⊒'],
832    \ ['star'		, '✫'],
833    \ ['subset'		, '⊂'],
834    \ ['Subset'		, '⋐'],
835    \ ['subseteq'	, '⊆'],
836    \ ['subseteqq'	, '⫅'],
837    \ ['subsetneq'	, '⊊'],
838    \ ['subsetneqq'	, '⫋'],
839    \ ['succ'		, '≻'],
840    \ ['succapprox'	, '⪸'],
841    \ ['succcurlyeq'	, '≽'],
842    \ ['succeq'		, '⪰'],
843    \ ['succnapprox'	, '⪺'],
844    \ ['succneqq'	, '⪶'],
845    \ ['succsim'	, '≿'],
846    \ ['sum'		, '∑'],
847    \ ['supset'		, '⊃'],
848    \ ['Supset'		, '⋑'],
849    \ ['supseteq'	, '⊇'],
850    \ ['supseteqq'	, '⫆'],
851    \ ['supsetneq'	, '⊋'],
852    \ ['supsetneqq'	, '⫌'],
853    \ ['surd'		, '√'],
854    \ ['swarrow'	, '↙'],
855    \ ['therefore'	, '∴'],
856    \ ['times'		, '×'],
857    \ ['to'		, '→'],
858    \ ['top'		, '⊤'],
859    \ ['triangle'	, '∆'],
860    \ ['triangleleft'	, '⊲'],
861    \ ['trianglelefteq'	, '⊴'],
862    \ ['triangleq'	, '≜'],
863    \ ['triangleright'	, '⊳'],
864    \ ['trianglerighteq', '⊵'],
865    \ ['twoheadleftarrow', '↞'],
866    \ ['twoheadrightarrow', '↠'],
867    \ ['uparrow'	, '↑'],
868    \ ['Uparrow'	, '⇑'],
869    \ ['updownarrow'	, '↕'],
870    \ ['Updownarrow'	, '⇕'],
871    \ ['varnothing'	, '∅'],
872    \ ['vartriangle'	, '∆'],
873    \ ['vdash'		, '⊢'],
874    \ ['vDash'		, '⊨'],
875    \ ['Vdash'		, '⊩'],
876    \ ['vdots'		, '⋮'],
877    \ ['vee'		, '∨'],
878    \ ['veebar'		, '⊻'],
879    \ ['Vvdash'		, '⊪'],
880    \ ['wedge'		, '∧'],
881    \ ['wp'		, '℘'],
882    \ ['wr'		, '≀']]
883"    \ ['jmath'		, 'X']
884"    \ ['uminus'	, 'X']
885"    \ ['uplus'		, 'X']
886  for texmath in s:texMathList
887   if texmath[0] =~ '\w$'
888    exe "syn match texMathSymbol '\\\\".texmath[0]."\\>' contained conceal cchar=".texmath[1]
889   else
890    exe "syn match texMathSymbol '\\\\".texmath[0]."' contained conceal cchar=".texmath[1]
891   endif
892  endfor
893
894  if &ambw == "double"
895   syn match texMathSymbol '\\gg\>'			contained conceal cchar=≫
896   syn match texMathSymbol '\\ll\>'			contained conceal cchar=≪
897  else
898   syn match texMathSymbol '\\gg\>'			contained conceal cchar=⟫
899   syn match texMathSymbol '\\ll\>'			contained conceal cchar=⟪
900  endif
901
902  syn match texMathSymbol '\\hat{a}' contained conceal cchar=â
903  syn match texMathSymbol '\\hat{A}' contained conceal cchar=Â
904  syn match texMathSymbol '\\hat{c}' contained conceal cchar=ĉ
905  syn match texMathSymbol '\\hat{C}' contained conceal cchar=Ĉ
906  syn match texMathSymbol '\\hat{e}' contained conceal cchar=ê
907  syn match texMathSymbol '\\hat{E}' contained conceal cchar=Ê
908  syn match texMathSymbol '\\hat{g}' contained conceal cchar=ĝ
909  syn match texMathSymbol '\\hat{G}' contained conceal cchar=Ĝ
910  syn match texMathSymbol '\\hat{i}' contained conceal cchar=î
911  syn match texMathSymbol '\\hat{I}' contained conceal cchar=Î
912  syn match texMathSymbol '\\hat{o}' contained conceal cchar=ô
913  syn match texMathSymbol '\\hat{O}' contained conceal cchar=Ô
914  syn match texMathSymbol '\\hat{s}' contained conceal cchar=ŝ
915  syn match texMathSymbol '\\hat{S}' contained conceal cchar=Ŝ
916  syn match texMathSymbol '\\hat{u}' contained conceal cchar=û
917  syn match texMathSymbol '\\hat{U}' contained conceal cchar=Û
918  syn match texMathSymbol '\\hat{w}' contained conceal cchar=ŵ
919  syn match texMathSymbol '\\hat{W}' contained conceal cchar=Ŵ
920  syn match texMathSymbol '\\hat{y}' contained conceal cchar=ŷ
921  syn match texMathSymbol '\\hat{Y}' contained conceal cchar=Ŷ
922 endif
923
924 " Greek {{{2
925 if s:tex_conceal =~ 'g'
926  fun! s:Greek(group,pat,cchar)
927    exe 'syn match '.a:group." '".a:pat."' contained conceal cchar=".a:cchar
928  endfun
929  call s:Greek('texGreek','\\alpha\>'		,'α')
930  call s:Greek('texGreek','\\beta\>'		,'β')
931  call s:Greek('texGreek','\\gamma\>'		,'γ')
932  call s:Greek('texGreek','\\delta\>'		,'δ')
933  call s:Greek('texGreek','\\epsilon\>'		,'ϵ')
934  call s:Greek('texGreek','\\varepsilon\>'	,'ε')
935  call s:Greek('texGreek','\\zeta\>'		,'ζ')
936  call s:Greek('texGreek','\\eta\>'		,'η')
937  call s:Greek('texGreek','\\theta\>'		,'θ')
938  call s:Greek('texGreek','\\vartheta\>'		,'ϑ')
939  call s:Greek('texGreek','\\kappa\>'		,'κ')
940  call s:Greek('texGreek','\\lambda\>'		,'λ')
941  call s:Greek('texGreek','\\mu\>'		,'μ')
942  call s:Greek('texGreek','\\nu\>'		,'ν')
943  call s:Greek('texGreek','\\xi\>'		,'ξ')
944  call s:Greek('texGreek','\\pi\>'		,'π')
945  call s:Greek('texGreek','\\varpi\>'		,'ϖ')
946  call s:Greek('texGreek','\\rho\>'		,'ρ')
947  call s:Greek('texGreek','\\varrho\>'		,'ϱ')
948  call s:Greek('texGreek','\\sigma\>'		,'σ')
949  call s:Greek('texGreek','\\varsigma\>'		,'ς')
950  call s:Greek('texGreek','\\tau\>'		,'τ')
951  call s:Greek('texGreek','\\upsilon\>'		,'υ')
952  call s:Greek('texGreek','\\phi\>'		,'φ')
953  call s:Greek('texGreek','\\varphi\>'		,'ϕ')
954  call s:Greek('texGreek','\\chi\>'		,'χ')
955  call s:Greek('texGreek','\\psi\>'		,'ψ')
956  call s:Greek('texGreek','\\omega\>'		,'ω')
957  call s:Greek('texGreek','\\Gamma\>'		,'Γ')
958  call s:Greek('texGreek','\\Delta\>'		,'Δ')
959  call s:Greek('texGreek','\\Theta\>'		,'Θ')
960  call s:Greek('texGreek','\\Lambda\>'		,'Λ')
961  call s:Greek('texGreek','\\Xi\>'		,'Χ')
962  call s:Greek('texGreek','\\Pi\>'		,'Π')
963  call s:Greek('texGreek','\\Sigma\>'		,'Σ')
964  call s:Greek('texGreek','\\Upsilon\>'		,'Υ')
965  call s:Greek('texGreek','\\Phi\>'		,'Φ')
966  call s:Greek('texGreek','\\Psi\>'		,'Ψ')
967  call s:Greek('texGreek','\\Omega\>'		,'Ω')
968  delfun s:Greek
969 endif
970
971 " Superscripts/Subscripts {{{2
972 if s:tex_conceal =~ 's'
973  syn region texSuperscript	matchgroup=Delimiter start='\^{'	skip="\\\\\|\\[{}]" end='}'	contained concealends contains=texSpecialChar,texSuperscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
974  syn region texSubscript	matchgroup=Delimiter start='_{'		skip="\\\\\|\\[{}]" end='}'	contained concealends contains=texSpecialChar,texSubscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
975  fun! s:SuperSub(group,leader,pat,cchar)
976    exe 'syn match '.a:group." '".a:leader.a:pat."' contained conceal cchar=".a:cchar
977    exe 'syn match '.a:group."s '".a:pat."' contained conceal cchar=".a:cchar.' nextgroup='.a:group.'s'
978  endfun
979  call s:SuperSub('texSuperscript','\^','0','⁰')
980  call s:SuperSub('texSuperscript','\^','1','¹')
981  call s:SuperSub('texSuperscript','\^','2','²')
982  call s:SuperSub('texSuperscript','\^','3','³')
983  call s:SuperSub('texSuperscript','\^','4','⁴')
984  call s:SuperSub('texSuperscript','\^','5','⁵')
985  call s:SuperSub('texSuperscript','\^','6','⁶')
986  call s:SuperSub('texSuperscript','\^','7','⁷')
987  call s:SuperSub('texSuperscript','\^','8','⁸')
988  call s:SuperSub('texSuperscript','\^','9','⁹')
989  call s:SuperSub('texSuperscript','\^','a','ᵃ')
990  call s:SuperSub('texSuperscript','\^','b','ᵇ')
991  call s:SuperSub('texSuperscript','\^','c','ᶜ')
992  call s:SuperSub('texSuperscript','\^','d','ᵈ')
993  call s:SuperSub('texSuperscript','\^','e','ᵉ')
994  call s:SuperSub('texSuperscript','\^','f','ᶠ')
995  call s:SuperSub('texSuperscript','\^','g','ᵍ')
996  call s:SuperSub('texSuperscript','\^','h','ʰ')
997  call s:SuperSub('texSuperscript','\^','i','ⁱ')
998  call s:SuperSub('texSuperscript','\^','j','ʲ')
999  call s:SuperSub('texSuperscript','\^','k','ᵏ')
1000  call s:SuperSub('texSuperscript','\^','l','ˡ')
1001  call s:SuperSub('texSuperscript','\^','m','ᵐ')
1002  call s:SuperSub('texSuperscript','\^','n','ⁿ')
1003  call s:SuperSub('texSuperscript','\^','o','ᵒ')
1004  call s:SuperSub('texSuperscript','\^','p','ᵖ')
1005  call s:SuperSub('texSuperscript','\^','r','ʳ')
1006  call s:SuperSub('texSuperscript','\^','s','ˢ')
1007  call s:SuperSub('texSuperscript','\^','t','ᵗ')
1008  call s:SuperSub('texSuperscript','\^','u','ᵘ')
1009  call s:SuperSub('texSuperscript','\^','v','ᵛ')
1010  call s:SuperSub('texSuperscript','\^','w','ʷ')
1011  call s:SuperSub('texSuperscript','\^','x','ˣ')
1012  call s:SuperSub('texSuperscript','\^','y','ʸ')
1013  call s:SuperSub('texSuperscript','\^','z','ᶻ')
1014  call s:SuperSub('texSuperscript','\^','A','ᴬ')
1015  call s:SuperSub('texSuperscript','\^','B','ᴮ')
1016  call s:SuperSub('texSuperscript','\^','D','ᴰ')
1017  call s:SuperSub('texSuperscript','\^','E','ᴱ')
1018  call s:SuperSub('texSuperscript','\^','G','ᴳ')
1019  call s:SuperSub('texSuperscript','\^','H','ᴴ')
1020  call s:SuperSub('texSuperscript','\^','I','ᴵ')
1021  call s:SuperSub('texSuperscript','\^','J','ᴶ')
1022  call s:SuperSub('texSuperscript','\^','K','ᴷ')
1023  call s:SuperSub('texSuperscript','\^','L','ᴸ')
1024  call s:SuperSub('texSuperscript','\^','M','ᴹ')
1025  call s:SuperSub('texSuperscript','\^','N','ᴺ')
1026  call s:SuperSub('texSuperscript','\^','O','ᴼ')
1027  call s:SuperSub('texSuperscript','\^','P','ᴾ')
1028  call s:SuperSub('texSuperscript','\^','R','ᴿ')
1029  call s:SuperSub('texSuperscript','\^','T','ᵀ')
1030  call s:SuperSub('texSuperscript','\^','U','ᵁ')
1031  call s:SuperSub('texSuperscript','\^','W','ᵂ')
1032  call s:SuperSub('texSuperscript','\^',',','︐')
1033  call s:SuperSub('texSuperscript','\^',':','︓')
1034  call s:SuperSub('texSuperscript','\^',';','︔')
1035  call s:SuperSub('texSuperscript','\^','+','⁺')
1036  call s:SuperSub('texSuperscript','\^','-','⁻')
1037  call s:SuperSub('texSuperscript','\^','<','˂')
1038  call s:SuperSub('texSuperscript','\^','>','˃')
1039  call s:SuperSub('texSuperscript','\^','/','ˊ')
1040  call s:SuperSub('texSuperscript','\^','(','⁽')
1041  call s:SuperSub('texSuperscript','\^',')','⁾')
1042  call s:SuperSub('texSuperscript','\^','\.','˙')
1043  call s:SuperSub('texSuperscript','\^','=','˭')
1044  call s:SuperSub('texSubscript','_','0','₀')
1045  call s:SuperSub('texSubscript','_','1','₁')
1046  call s:SuperSub('texSubscript','_','2','₂')
1047  call s:SuperSub('texSubscript','_','3','₃')
1048  call s:SuperSub('texSubscript','_','4','₄')
1049  call s:SuperSub('texSubscript','_','5','₅')
1050  call s:SuperSub('texSubscript','_','6','₆')
1051  call s:SuperSub('texSubscript','_','7','₇')
1052  call s:SuperSub('texSubscript','_','8','₈')
1053  call s:SuperSub('texSubscript','_','9','₉')
1054  call s:SuperSub('texSubscript','_','a','ₐ')
1055  call s:SuperSub('texSubscript','_','e','ₑ')
1056  call s:SuperSub('texSubscript','_','i','ᵢ')
1057  call s:SuperSub('texSubscript','_','o','ₒ')
1058  call s:SuperSub('texSubscript','_','u','ᵤ')
1059  call s:SuperSub('texSubscript','_',',','︐')
1060  call s:SuperSub('texSubscript','_','+','₊')
1061  call s:SuperSub('texSubscript','_','-','₋')
1062  call s:SuperSub('texSubscript','_','/','ˏ')
1063  call s:SuperSub('texSubscript','_','(','₍')
1064  call s:SuperSub('texSubscript','_',')','₎')
1065  call s:SuperSub('texSubscript','_','\.','‸')
1066  call s:SuperSub('texSubscript','_','r','ᵣ')
1067  call s:SuperSub('texSubscript','_','v','ᵥ')
1068  call s:SuperSub('texSubscript','_','x','ₓ')
1069  call s:SuperSub('texSubscript','_','\\beta\>' ,'ᵦ')
1070  call s:SuperSub('texSubscript','_','\\delta\>','ᵨ')
1071  call s:SuperSub('texSubscript','_','\\phi\>'  ,'ᵩ')
1072  call s:SuperSub('texSubscript','_','\\gamma\>','ᵧ')
1073  call s:SuperSub('texSubscript','_','\\chi\>'  ,'ᵪ')
1074  delfun s:SuperSub
1075 endif
1076
1077 " Accented characters: {{{2
1078 if s:tex_conceal =~ 'a'
1079  if b:tex_stylish
1080   syn match texAccent		"\\[bcdvuH][^a-zA-Z@]"me=e-1
1081   syn match texLigature		"\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)[^a-zA-Z@]"me=e-1
1082  else
1083   fun! s:Accents(chr,...)
1084     let i= 1
1085     for accent in ["`","\\'","^",'"','\~','\.',"c","H","k","r","u","v"]
1086      if i > a:0
1087       break
1088      endif
1089      if strlen(a:{i}) == 0 || a:{i} == ' ' || a:{i} == '?'
1090       let i= i + 1
1091       continue
1092      endif
1093      if accent =~ '\a'
1094       exe "syn match texAccent '".'\\'.accent.'\(\s*{'.a:chr.'}\|\s\+'.a:chr.'\)'."' conceal cchar=".a:{i}
1095      else
1096       exe "syn match texAccent '".'\\'.accent.'\s*\({'.a:chr.'}\|'.a:chr.'\)'."' conceal cchar=".a:{i}
1097      endif
1098      let i= i + 1
1099     endfor
1100   endfun
1101   "                  \`  \'  \^  \"  \~  \.  \c  \H  \k  \r  \u  \v
1102   call s:Accents('a','à','á','â','ä','ã','ȧ',' ',' ','ą','å','ă','ă')
1103   call s:Accents('A','À','Á','Â','Ä','Ã','Ȧ',' ',' ','Ą','Å','Ă','Ă')
1104   call s:Accents('c',' ','ć','ĉ',' ',' ','ċ','ç',' ',' ',' ',' ','č')
1105   call s:Accents('C',' ','Ć','Ĉ',' ',' ','Ċ','Ç',' ',' ',' ',' ','Č')
1106   call s:Accents('d',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ď')
1107   call s:Accents('D',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','Ď')
1108   call s:Accents('e','è','é','ê','ë','ẽ','ė','ȩ',' ','ę',' ','ĕ','ě')
1109   call s:Accents('E','È','É','Ê','Ë','Ẽ','Ė','Ȩ',' ','Ę',' ','Ĕ','Ě')
1110   call s:Accents('g',' ','ǵ','ĝ',' ',' ','ġ','ģ',' ',' ',' ','ğ',' ')
1111   call s:Accents('G',' ','Ǵ','Ĝ',' ',' ','Ġ','Ģ',' ',' ',' ','Ğ',' ')
1112   call s:Accents('h',' ',' ','ĥ',' ',' ',' ',' ',' ',' ',' ',' ','ȟ')
1113   call s:Accents('H',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','Ȟ')
1114   call s:Accents('i','ì','í','î','ï','ĩ','į',' ',' ',' ',' ','ĭ',' ')
1115   call s:Accents('I','Ì','Í','Î','Ï','Ĩ','İ',' ',' ',' ',' ','Ĭ',' ')
1116   call s:Accents('J',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','ǰ')
1117   call s:Accents('k',' ',' ',' ',' ',' ',' ','ķ',' ',' ',' ',' ',' ')
1118   call s:Accents('K',' ',' ',' ',' ',' ',' ','Ķ',' ',' ',' ',' ',' ')
1119   call s:Accents('l',' ','ĺ','ľ',' ',' ',' ','ļ',' ',' ',' ',' ','ľ')
1120   call s:Accents('L',' ','Ĺ','Ľ',' ',' ',' ','Ļ',' ',' ',' ',' ','Ľ')
1121   call s:Accents('n',' ','ń',' ',' ','ñ',' ','ņ',' ',' ',' ',' ','ň')
1122   call s:Accents('N',' ','Ń',' ',' ','Ñ',' ','Ņ',' ',' ',' ',' ','Ň')
1123   call s:Accents('o','ò','ó','ô','ö','õ','ȯ',' ','ő','ǫ',' ','ŏ',' ')
1124   call s:Accents('O','Ò','Ó','Ô','Ö','Õ','Ȯ',' ','Ő','Ǫ',' ','Ŏ',' ')
1125   call s:Accents('r',' ','ŕ',' ',' ',' ',' ','ŗ',' ',' ',' ',' ','ř')
1126   call s:Accents('R',' ','Ŕ',' ',' ',' ',' ','Ŗ',' ',' ',' ',' ','Ř')
1127   call s:Accents('s',' ','ś','ŝ',' ',' ',' ','ş',' ','ȿ',' ',' ','š')
1128   call s:Accents('S',' ','Ś','Ŝ',' ',' ',' ','Ş',' ',' ',' ',' ','Š')
1129   call s:Accents('t',' ',' ',' ',' ',' ',' ','ţ',' ',' ',' ',' ','ť')
1130   call s:Accents('T',' ',' ',' ',' ',' ',' ','Ţ',' ',' ',' ',' ','Ť')
1131   call s:Accents('u','ù','ú','û','ü','ũ',' ',' ','ű','ų','ů','ŭ','ǔ')
1132   call s:Accents('U','Ù','Ú','Û','Ü','Ũ',' ',' ','Ű','Ų','Ů','Ŭ','Ǔ')
1133   call s:Accents('w',' ',' ','ŵ',' ',' ',' ',' ',' ',' ',' ',' ',' ')
1134   call s:Accents('W',' ',' ','Ŵ',' ',' ',' ',' ',' ',' ',' ',' ',' ')
1135   call s:Accents('y','ỳ','ý','ŷ','ÿ','ỹ',' ',' ',' ',' ',' ',' ',' ')
1136   call s:Accents('Y','Ỳ','Ý','Ŷ','Ÿ','Ỹ',' ',' ',' ',' ',' ',' ',' ')
1137   call s:Accents('z',' ','ź',' ',' ',' ','ż',' ',' ',' ',' ',' ','ž')
1138   call s:Accents('Z',' ','Ź',' ',' ',' ','Ż',' ',' ',' ',' ',' ','Ž')
1139   call s:Accents('\\i','ì','í','î','ï','ĩ','į',' ',' ',' ',' ','ĭ',' ')
1140   "                  \`  \'  \^  \"  \~  \.  \c  \H  \k  \r  \u  \v
1141   delfun s:Accents
1142   syn match texAccent   '\\aa\>'	conceal cchar=å
1143   syn match texAccent   '\\AA\>'	conceal cchar=Å
1144   syn match texAccent	'\\o\>'		conceal cchar=ø
1145   syn match texAccent	'\\O\>'		conceal cchar=Ø
1146   syn match texLigature	'\\AE\>'	conceal cchar=Æ
1147   syn match texLigature	'\\ae\>'	conceal cchar=æ
1148   syn match texLigature	'\\oe\>'	conceal cchar=œ
1149   syn match texLigature	'\\OE\>'	conceal cchar=Œ
1150   syn match texLigature	'\\ss\>'	conceal cchar=ß
1151  endif
1152 endif
1153endif
1154
1155" ---------------------------------------------------------------------
1156" LaTeX synchronization: {{{1
1157syn sync maxlines=200
1158syn sync minlines=50
1159
1160syn  sync match texSyncStop			groupthere NONE		"%stopzone\>"
1161
1162" Synchronization: {{{1
1163" The $..$ and $$..$$ make for impossible sync patterns
1164" (one can't tell if a "$$" starts or stops a math zone by itself)
1165" The following grouptheres coupled with minlines above
1166" help improve the odds of good syncing.
1167if !exists("tex_no_math")
1168 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{abstract}"
1169 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{center}"
1170 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{description}"
1171 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{enumerate}"
1172 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{itemize}"
1173 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{table}"
1174 syn sync match texSyncMathZoneA		groupthere NONE		"\\end{tabular}"
1175 syn sync match texSyncMathZoneA		groupthere NONE		"\\\(sub\)*section\>"
1176endif
1177
1178" ---------------------------------------------------------------------
1179" Highlighting: {{{1
1180if did_tex_syntax_inits == 1
1181 let did_tex_syntax_inits= 2
1182  " TeX highlighting groups which should share similar highlighting
1183  if !exists("g:tex_no_error")
1184   if !exists("tex_no_math")
1185    HiLink texBadMath		texError
1186    HiLink texMathDelimBad	texError
1187    HiLink texMathError		texError
1188    if !b:tex_stylish
1189      HiLink texOnlyMath	texError
1190    endif
1191   endif
1192   HiLink texError		Error
1193  endif
1194
1195  hi texBoldStyle		gui=bold	cterm=bold
1196  hi texItalStyle		gui=italic	cterm=italic
1197  hi texBoldItalStyle		gui=bold,italic cterm=bold,italic
1198  hi texItalBoldStyle		gui=bold,italic cterm=bold,italic
1199  HiLink texCite		texRefZone
1200  HiLink texDefCmd		texDef
1201  HiLink texDefName		texDef
1202  HiLink texDocType		texCmdName
1203  HiLink texDocTypeArgs		texCmdArgs
1204  HiLink texInputFileOpt	texCmdArgs
1205  HiLink texInputCurlies	texDelimiter
1206  HiLink texLigature		texSpecialChar
1207  if !exists("tex_no_math")
1208   HiLink texMathDelimSet1	texMathDelim
1209   HiLink texMathDelimSet2	texMathDelim
1210   HiLink texMathDelimKey	texMathDelim
1211   HiLink texMathMatcher	texMath
1212   HiLink texAccent		texStatement
1213   HiLink texGreek		texStatement
1214   HiLink texSuperscript	texStatement
1215   HiLink texSubscript		texStatement
1216   HiLink texSuperscripts 	texSuperscript
1217   HiLink texSubscripts 	texSubscript
1218   HiLink texMathSymbol		texStatement
1219   HiLink texMathZoneV		texMath
1220   HiLink texMathZoneW		texMath
1221   HiLink texMathZoneX		texMath
1222   HiLink texMathZoneY		texMath
1223   HiLink texMathZoneV		texMath
1224   HiLink texMathZoneZ		texMath
1225  endif
1226  HiLink texBeginEnd		texCmdName
1227  HiLink texBeginEndName	texSection
1228  HiLink texSpaceCode		texStatement
1229  HiLink texStyleStatement	texStatement
1230  HiLink texTypeSize		texType
1231  HiLink texTypeStyle		texType
1232
1233   " Basic TeX highlighting groups
1234  HiLink texCmdArgs		Number
1235  HiLink texCmdName		Statement
1236  HiLink texComment		Comment
1237  HiLink texDef			Statement
1238  HiLink texDefParm		Special
1239  HiLink texDelimiter		Delimiter
1240  HiLink texInput		Special
1241  HiLink texInputFile		Special
1242  HiLink texLength		Number
1243  HiLink texMath		Special
1244  HiLink texMathDelim		Statement
1245  HiLink texMathOper		Operator
1246  HiLink texNewCmd		Statement
1247  HiLink texNewEnv		Statement
1248  HiLink texOption		Number
1249  HiLink texRefZone		Special
1250  HiLink texSection		PreCondit
1251  HiLink texSpaceCodeChar	Special
1252  HiLink texSpecialChar		SpecialChar
1253  HiLink texStatement		Statement
1254  HiLink texString		String
1255  HiLink texTodo		Todo
1256  HiLink texType		Type
1257  HiLink texZone		PreCondit
1258
1259  delcommand HiLink
1260endif
1261
1262" Cleanup: {{{1
1263unlet s:extfname
1264let   b:current_syntax = "tex"
1265let &cpo               = s:keepcpo
1266unlet s:keepcpo
1267" vim: ts=8 fdm=marker
1268