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" Vim syntax file
" Language: TeX
" Maintainer: Dr. Charles E. Campbell, Jr. <NdrchipO@ScampbellPfamily.AbizM>
" Last Change: Jul 28, 2010
" Version: 52
" URL: http://mysite.verizon.net/astronaut/vim/index.html#vimlinks_syntax
"
" Notes: {{{1
"
" 1. If you have a \begin{verbatim} that appears to overrun its boundaries,
" use %stopzone.
"
" 2. Run-on equations ($..$ and $$..$$, particularly) can also be stopped
" by suitable use of %stopzone.
"
" 3. If you have a slow computer, you may wish to modify
"
" syn sync maxlines=200
" syn sync minlines=50
"
" to values that are more to your liking.
"
" 4. There is no match-syncing for $...$ and $$...$$; hence large
" equation blocks constructed that way may exhibit syncing problems.
" (there's no difference between begin/end patterns)
"
" 5. If you have the variable "g:tex_no_error" defined then none of the
" lexical error-checking will be done.
"
" ie. let g:tex_no_error=1
" Version Clears: {{{1
" For version 5.x: Clear all syntax items
" For version 6.x: Quit when a syntax file was already loaded
if version < 600
syntax clear
elseif exists("b:current_syntax")
finish
endif
scriptencoding utf-8
" Define the default highlighting. {{{1
" For version 5.7 and earlier: only when not done already
" For version 5.8 and later: only when an item doesn't have highlighting yet
if version >= 508 || !exists("did_tex_syntax_inits")
let did_tex_syntax_inits = 1
if version < 508
command -nargs=+ HiLink hi link <args>
else
command -nargs=+ HiLink hi def link <args>
endif
endif
if exists("g:tex_tex") && !exists("g:tex_no_error")
let g:tex_no_error= 1
endif
" let user determine which classes of concealment will be supported
" a=accents/ligatures m=math symbols g=Greek s=superscripts/subscripts
if !exists("g:tex_conceal")
let s:tex_conceal= 'amgs'
else
let s:tex_conceal= g:tex_conceal
endif
" Determine whether or not to use "*.sty" mode {{{1
" The user may override the normal determination by setting
" g:tex_stylish to 1 (for "*.sty" mode)
" or to 0 else (normal "*.tex" mode)
" or on a buffer-by-buffer basis with b:tex_stylish
let b:extfname=expand("%:e")
if exists("g:tex_stylish")
let b:tex_stylish= g:tex_stylish
elseif !exists("b:tex_stylish")
if b:extfname == "sty" || b:extfname == "cls" || b:extfname == "clo" || b:extfname == "dtx" || b:extfname == "ltx"
let b:tex_stylish= 1
else
let b:tex_stylish= 0
endif
endif
" handle folding {{{1
if !exists("g:tex_fold_enabled")
let g:tex_fold_enabled= 0
elseif g:tex_fold_enabled && !has("folding")
let g:tex_fold_enabled= 0
echomsg "Ignoring g:tex_fold_enabled=".g:tex_fold_enabled."; need to re-compile vim for +fold support"
endif
if g:tex_fold_enabled && &fdm == "manual"
setl fdm=syntax
endif
" (La)TeX keywords: only use the letters a-zA-Z {{{1
" but _ is the only one that causes problems.
if version < 600
set isk-=_
if b:tex_stylish
set isk+=@
endif
else
setlocal isk-=_
if b:tex_stylish
setlocal isk+=@
endif
endif
" Clusters: {{{1
" --------
syn cluster texCmdGroup contains=texCmdBody,texComment,texDefParm,texDelimiter,texDocType,texInput,texLength,texLigature,texMathDelim,texMathOper,texNewCmd,texNewEnv,texRefZone,texSection,texSectionMarker,texSectionName,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle
if !exists("g:tex_no_error")
syn cluster texCmdGroup add=texMathError
endif
syn cluster texEnvGroup contains=texMatcher,texMathDelim,texSpecialChar,texStatement
syn cluster texFoldGroup contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texInputFile,texLength,texLigature,texMatcher,texMathZoneV,texMathZoneW,texMathZoneX,texMathZoneY,texMathZoneZ,texNewCmd,texNewEnv,texOnlyMath,texOption,texParen,texRefZone,texSection,texSectionMarker,texSectionZone,texSpaceCode,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,@texMathZones,texTitle,texAbstract
syn cluster texMatchGroup contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMatcher,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,@Spell
syn cluster texStyleGroup contains=texAccent,texBadMath,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texNewCmd,texNewEnv,texOnlyMath,texParen,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone,texInputFile,texOption,texStyleStatement,@Spell,texStyleMatcher
syn cluster texRefGroup contains=texMatcher,texComment,texDelimiter
if !exists("tex_no_math")
syn cluster texMathZones contains=texMathZoneV,texMathZoneW,texMathZoneX,texMathZoneY,texMathZoneZ
syn cluster texMatchGroup add=@texMathZones
syn cluster texMathDelimGroup contains=texMathDelimBad,texMathDelimKey,texMathDelimSet1,texMathDelimSet2
syn cluster texMathMatchGroup contains=@texMathZones,texComment,texDefCmd,texDelimiter,texDocType,texInput,texLength,texLigature,texMathDelim,texMathMatcher,texMathOper,texNewCmd,texNewEnv,texRefZone,texSection,texSpecialChar,texStatement,texString,texTypeSize,texTypeStyle,texZone
syn cluster texMathZoneGroup contains=texComment,texDelimiter,texLength,texMathDelim,texMathMatcher,texMathOper,texMathSymbol,texRefZone,texSpecialChar,texStatement,texTypeSize,texTypeStyle
if !exists("g:tex_no_error")
syn cluster texMathMatchGroup add=texMathError
syn cluster texMathZoneGroup add=texMathError
endif
syn cluster texMathZoneGroup add=@NoSpell
" following used in the \part \chapter \section \subsection \subsubsection
" \paragraph \subparagraph \author \title highlighting
syn cluster texDocGroup contains=texPartZone,@texPartGroup
syn cluster texPartGroup contains=texChapterZone,texSectionZone,texParaZone
syn cluster texChapterGroup contains=texSectionZone,texParaZone
syn cluster texSectionGroup contains=texSubSectionZone,texParaZone
syn cluster texSubSectionGroup contains=texSubSubSectionZone,texParaZone
syn cluster texSubSubSectionGroup contains=texParaZone
syn cluster texParaGroup contains=texSubParaZone
if has("conceal") && &enc == 'utf-8'
syn cluster texMathZoneGroup add=texGreek,texSuperscript,texSubscript,texMathSymbol
syn cluster texMathMatchGroup add=texGreek,texSuperscript,texSubscript,texMathSymbol
endif
endif
" Try to flag {} and () mismatches: {{{1
if !exists("g:tex_no_error")
syn region texMatcher matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]" end="}" contains=@texMatchGroup,texError
syn region texMatcher matchgroup=Delimiter start="\[" end="]" contains=@texMatchGroup,texError
else
syn region texMatcher matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]" end="}" contains=@texMatchGroup
syn region texMatcher matchgroup=Delimiter start="\[" end="]" contains=@texMatchGroup
endif
syn region texParen start="(" end=")" contains=@texMatchGroup,@Spell
if !exists("g:tex_no_error")
syn match texError "[}\])]"
endif
if !exists("tex_no_math")
if !exists("g:tex_no_error")
syn match texMathError "}" contained
endif
syn region texMathMatcher matchgroup=Delimiter start="{" skip="\\\\\|\\}" end="}" end="%stopzone\>" contained contains=@texMathMatchGroup
endif
" TeX/LaTeX keywords: {{{1
" Instead of trying to be All Knowing, I just match \..alphameric..
" Note that *.tex files may not have "@" in their \commands
if exists("g:tex_tex") || b:tex_stylish
syn match texStatement "\\[a-zA-Z@]\+"
else
syn match texStatement "\\\a\+"
if !exists("g:tex_no_error")
syn match texError "\\\a*@[a-zA-Z@]*"
endif
endif
" TeX/LaTeX delimiters: {{{1
syn match texDelimiter "&"
syn match texDelimiter "\\\\"
" Tex/Latex Options: {{{1
syn match texOption "[^\\]\zs#\d\+\|^#\d\+"
" texAccent (tnx to Karim Belabas) avoids annoying highlighting for accents: {{{1
if b:tex_stylish
syn match texAccent "\\[bcdvuH][^a-zA-Z@]"me=e-1
syn match texLigature "\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)[^a-zA-Z@]"me=e-1
else
syn match texAccent "\\[bcdvuH]\A"me=e-1
syn match texLigature "\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)\A"me=e-1
endif
syn match texAccent "\\[bcdvuH]$"
syn match texAccent +\\[=^.\~"`']+
syn match texAccent +\\['=t'.c^ud"vb~Hr]{\a}+
syn match texLigature "\\\([ijolL]\|ae\|oe\|ss\|AA\|AE\|OE\)$"
" \begin{}/\end{} section markers: {{{1
syn match texSectionMarker "\\begin\>\|\\end\>" nextgroup=texSectionName
syn region texSectionName matchgroup=Delimiter start="{" end="}" contained nextgroup=texSectionModifier contains=texComment
syn region texSectionModifier matchgroup=Delimiter start="\[" end="]" contained contains=texComment
" \documentclass, \documentstyle, \usepackage: {{{1
syn match texDocType "\\documentclass\>\|\\documentstyle\>\|\\usepackage\>" nextgroup=texSectionName,texDocTypeArgs
syn region texDocTypeArgs matchgroup=Delimiter start="\[" end="]" contained nextgroup=texSectionName contains=texComment
" Preamble syntax-based folding support: {{{1
if g:tex_fold_enabled && has("folding")
syn region texPreamble transparent fold start='\zs\\documentclass\>' end='\ze\\begin{document}' contains=texStyle,@texMatchGroup
endif
" TeX input: {{{1
syn match texInput "\\input\s\+[a-zA-Z/.0-9_^]\+&qu
|