if exists("b:current_syntax")
finish
endif 
scriptencoding utf-8
syn case match
syn region rhelpIdentifier matchgroup=rhelpSection	start="\\name{" end="}" 
syn region rhelpIdentifier matchgroup=rhelpSection	start="\\alias{" end="}" 
syn region rhelpIdentifier matchgroup=rhelpSection	start="\\pkg{" end="}" contains=rhelpLink
syn region rhelpIdentifier matchgroup=rhelpSection	start="\\CRANpkg{" end="}" contains=rhelpLink
syn region rhelpIdentifier matchgroup=rhelpSection start="\\method{" end="}" contained
syn region rhelpIdentifier matchgroup=rhelpSection start="\\Rdversion{" end="}"
syn include @R syntax/r.vim
syn region rhelpString start=/"/ skip=/\\"/ end=/"/ contains=rhelpSpecialChar,rhelpCodeSpecial,rhelpLink contained
syn match rhelpCodeSpecial display contained "\\\\\(n\|r\|t\|b\|a\|f\|v\|'\|\"\)\|\\\\"
syn match rhelpSpecialChar        "\\[$&%#{}_]"
syn match rhelpDots		"\\dots" containedin=@R
syn region rhelpRcode matchgroup=Delimiter start="\\examples{" matchgroup=Delimiter transparent end="}" contains=@R,rhelpLink,rhelpIdentifier,rhelpString,rhelpSpecialChar,rhelpSection
syn region rhelpRcode matchgroup=Delimiter start="\\usage{" matchgroup=Delimiter transparent end="}" contains=@R,rhelpIdentifier,rhelpS4method
syn region rhelpRcode matchgroup=Delimiter start="\\synopsis{" matchgroup=Delimiter transparent end="}" contains=@R
syn region rhelpRcode matchgroup=Delimiter start="\\special{" matchgroup=Delimiter transparent end="}" contains=@R
if v:version > 703
syn region rhelpRcode matchgroup=Delimiter start="\\code{" skip='\\\@1<!{.\{-}\\\@1<!}' transparent end="}" contains=@R,rhelpDots,rhelpString,rhelpSpecialChar,rhelpLink keepend
else
syn region rhelpRcode matchgroup=Delimiter start="\\code{" skip='\\\@<!{.\{-}\\\@<!}' transparent end="}" contains=@R,rhelpDots,rhelpString,rhelpSpecialChar,rhelpLink keepend
endif
syn region rhelpS4method matchgroup=Delimiter start="\\S4method{.*}(" matchgroup=Delimiter transparent end=")" contains=@R,rhelpDots
syn region rhelpSexpr matchgroup=Delimiter start="\\Sexpr{" matchgroup=Delimiter transparent end="}" contains=@R
syn match rhelpPreProc "^#ifdef.*" 
syn match rhelpPreProc "^#endif.*" 
syn match rhelpDelimiter		"\\cr"
syn match rhelpDelimiter		"\\tab "
syn match rhelpKeyword	"\\R\>"
syn match rhelpKeyword	"\\ldots\>"
syn match rhelpKeyword	"\\sspace\>"
syn match rhelpKeyword  "--"
syn match rhelpKeyword  "---"
syn match rhelpKeyword	"\\if\>"
syn match rhelpKeyword	"\\ifelse\>"
syn match rhelpKeyword	"\\out\>"
syn match rhelpMathOp  "<" contained
syn match rhelpMathOp  ">" contained
syn match rhelpMathOp  "+" contained
syn match rhelpMathOp  "-" contained
syn match rhelpMathOp  "=" contained
if exists("g:tex_conceal")
let s:tex_conceal = g:tex_conceal
else
let s:tex_conceal = 'gm'
endif
function s:HideSymbol(pat, cchar, hide)
if a:hide
exe "syn match rhelpMathSymb '" . a:pat . "' contained conceal cchar=" . a:cchar
else
exe "syn match rhelpMathSymb '" . a:pat . "' contained"
endif
endfunction
if s:tex_conceal =~ 'm'
let s:hd = 1
else
let s:hd = 0
endif
call s:HideSymbol('\\infty\>',  '∞', s:hd)
call s:HideSymbol('\\ge\>',     '≥', s:hd)
call s:HideSymbol('\\le\>',     '≤', s:hd)
call s:HideSymbol('\\prod\>',   '∏', s:hd)
call s:HideSymbol('\\sum\>',    '∑', s:hd)
syn match rhelpMathSymb   	"\\sqrt\>" contained
if s:tex_conceal =~ 'g'
let s:hd = 1
else
let s:hd = 0
endif
call s:HideSymbol('\\alpha\>',    'α', s:hd)
call s:HideSymbol('\\beta\>',     'β', s:hd)
call s:HideSymbol('\\gamma\>',    'γ', s:hd)
call s:HideSymbol('\\delta\>',    'δ', s:hd)
call s:HideSymbol('\\epsilon\>',  'ϵ', s:hd)
call s:HideSymbol('\\zeta\>',     'ζ', s:hd)
call s:HideSymbol('\\eta\>',      'η', s:hd)
call s:HideSymbol('\\theta\>',    'θ', s:hd)
call s:HideSymbol('\\iota\>',     'ι', s:hd)
call s:HideSymbol('\\kappa\>',    'κ', s:hd)
call s:HideSymbol('\\lambda\>',   'λ', s:hd)
call s:HideSymbol('\\mu\>',       'μ', s:hd)
call s:HideSymbol('\\nu\>',       'ν', s:hd)
call s:HideSymbol('\\xi\>',       'ξ', s:hd)
call s:HideSymbol('\\pi\>',       'π', s:hd)
call s:HideSymbol('\\rho\>',      'ρ', s:hd)
call s:HideSymbol('\\sigma\>',    'σ', s:hd)
call s:HideSymbol('\\tau\>',      'τ', s:hd)
call s:HideSymbol('\\upsilon\>',  'υ', s:hd)
call s:HideSymbol('\\phi\>',      'ϕ', s:hd)
call s:HideSymbol('\\chi\>',      'χ', s:hd)
call s:HideSymbol('\\psi\>',      'ψ', s:hd)
call s:HideSymbol('\\omega\>',    'ω', s:hd)
call s:HideSymbol('\\Gamma\>',    'Γ', s:hd)
call s:HideSymbol('\\Delta\>',    'Δ', s:hd)
call s:HideSymbol('\\Theta\>',    'Θ', s:hd)
call s:HideSymbol('\\Lambda\>',   'Λ', s:hd)
call s:HideSymbol('\\Xi\>',       'Ξ', s:hd)
call s:HideSymbol('\\Pi\>',       'Π', s:hd)
call s:HideSymbol('\\Sigma\>',    'Σ', s:hd)
call s:HideSymbol('\\Upsilon\>',  'Υ', s:hd)
call s:HideSymbol('\\Phi\>',      'Φ', s:hd)
call s:HideSymbol('\\Psi\>',      'Ψ', s:hd)
call s:HideSymbol('\\Omega\>',    'Ω', s:hd)
delfunction s:HideSymbol
syn region rhelpLink matchgroup=rhelpType start="\\link{" end="}" contained keepend extend
syn region rhelpLink matchgroup=rhelpType start="\\link\[.\{-}\]{" end="}" contained keepend extend
syn region rhelpLink matchgroup=rhelpType start="\\linkS4class{" end="}" contained keepend extend
syn region rhelpLink matchgroup=rhelpType start="\\url{" end="}" contained keepend extend
syn region rhelpLink matchgroup=rhelpType start="\\href{" end="}" contained keepend extend
syn region rhelpLink matchgroup=rhelpType start="\\figure{" end="}" contained keepend extend
syn region rhelpVerbatim matchgroup=rhelpType start="\\samp{" skip='\\\@1<!{.\{-}\\\@1<!}' end="}" contains=rhelpSpecialChar,rhelpComment
syn region rhelpVerbatim matchgroup=rhelpType start="\\verb{" skip='\\\@1<!{.\{-}\\\@1<!}' end="}" contains=rhelpSpecialChar,rhelpComment
syn region rhelpEquation matchgroup=rhelpType start="\\eqn{" skip='\\\@1<!{.\{-}\\\@1<!}' end="}" contains=rhelpMathSymb,rhelpMathOp,rhelpRegion contained keepend extend
syn region rhelpEquation matchgroup=rhelpType start="\\deqn{" skip='\\\@1<!{.\{-}\\\@1<!}' end="}" contains=rhelpMathSymb,rhelpMathOp,rhelpRegion contained keepend extend
syn match rhelpType		"\\emph\>"
syn match rhelpType		"\\strong\>"
syn match rhelpType		"\\bold\>"
syn match rhelpType		"\\sQuote\>"
syn match rhelpType		"\\dQuote\>"
syn match rhelpType		"\\preformatted\>"
syn match rhelpType		"\\kbd\>"
syn match rhelpType		"\\file\>"
syn match rhelpType		"\\email\>"
syn match rhelpType		"\\enc\>"
syn match rhelpType		"\\var\>"
syn match rhelpType		"\\env\>"
syn match rhelpType		"\\option\>"
syn match rhelpType		"\\command\>"
syn match rhelpType		"\\newcommand\>"
syn match rhelpType		"\\renewcommand\>"
syn match rhelpType		"\\dfn\>"
syn match rhelpType		"\\cite\>"
syn match rhelpType		"\\acronym\>"
syn match rhelpType		"\\doi\>"
syn match rhelpSection		"\\encoding\>"
syn match rhelpSection		"\\title\>"
syn match rhelpSection		"\\item\>"
syn match rhelpSection		"\\description\>"
syn match rhelpSection		"\\concept\>"
syn match rhelpSection		"\\arguments\>"
syn match rhelpSection		"\\details\>"
syn match rhelpSection		"\\value\>"
syn match rhelpSection		"\\references\>"
syn match rhelpSection		"\\note\>"
syn match rhelpSection		"\\author\>"
syn match rhelpSection		"\\seealso\>"
syn match rhelpSection		"\\keyword\>"
syn match rhelpSection		"\\docType\>"
syn match rhelpSection		"\\format\>"
syn match rhelpSection		"\\source\>"
syn match rhelpSection    "\\itemize\>"
syn match rhelpSection    "\\describe\>"
syn match rhelpSection    "\\enumerate\>"
syn match rhelpSection    "\\item "
syn match rhelpSection    "\\item$"
syn match rhelpSection		"\\tabular{[lcr]*}"
syn match rhelpSection		"\\dontrun\>"
syn match rhelpSection		"\\dontshow\>"
syn match rhelpSection		"\\testonly\>"
syn match rhelpSection		"\\donttest\>"
syn region rhelpFreesec matchgroup=Delimiter start="\\section{" matchgroup=Delimiter transparent end="}"
syn region rhelpFreesubsec matchgroup=Delimiter start="\\subsection{" matchgroup=Delimiter transparent end="}" 
syn match rhelpDelimiter "{\|\[\|(\|)\|\]\|}"
syn match rhelpComment /%.*$/
syn region rhelpRegion matchgroup=Delimiter start=/(/ matchgroup=Delimiter end=/)/ contains=@Spell,rhelpCodeSpecial,rhelpComment,rhelpDelimiter,rhelpDots,rhelpFreesec,rhelpFreesubsec,rhelpIdentifier,rhelpKeyword,rhelpLink,rhelpPreProc,rhelpRComment,rhelpRcode,rhelpRegion,rhelpS4method,rhelpSection,rhelpSexpr,rhelpSpecialChar,rhelpString,rhelpType,rhelpVerbatim,rhelpEquation
syn region rhelpRegion matchgroup=Delimiter start=/{/ matchgroup=Delimiter end=/}/ contains=@Spell,rhelpCodeSpecial,rhelpComment,rhelpDelimiter,rhelpDots,rhelpFreesec,rhelpFreesubsec,rhelpIdentifier,rhelpKeyword,rhelpLink,rhelpPreProc,rhelpRComment,rhelpRcode,rhelpRegion,rhelpS4method,rhelpSection,rhelpSexpr,rhelpSpecialChar,rhelpString,rhelpType,rhelpVerbatim,rhelpEquation
syn region rhelpRegion matchgroup=Delimiter start=/\[/ matchgroup=Delimiter end=/]/ contains=@Spell,rhelpCodeSpecial,rhelpComment,rhelpDelimiter,rhelpDots,rhelpFreesec,rhelpFreesubsec,rhelpIdentifier,rhelpKeyword,rhelpLink,rhelpPreProc,rhelpRComment,rhelpRcode,rhelpRegion,rhelpS4method,rhelpSection,rhelpSexpr,rhelpSpecialChar,rhelpString,rhelpType,rhelpVerbatim,rhelpEquation
syn match rhelpError      /[)\]}]/
syn match rhelpBraceError /[)}]/ contained
syn match rhelpCurlyError /[)\]]/ contained
syn match rhelpParenError /[\]}]/ contained
syntax sync match rhelpSyncRcode grouphere rhelpRcode "\\examples{"
hi def link rhelpVerbatim    String
hi def link rhelpDelimiter   Delimiter
hi def link rhelpIdentifier  Identifier
hi def link rhelpString      String
hi def link rhelpCodeSpecial Special
hi def link rhelpKeyword     Keyword
hi def link rhelpDots        Keyword
hi def link rhelpLink        Underlined
hi def link rhelpType        Type
hi def link rhelpSection     PreCondit
hi def link rhelpError       Error
hi def link rhelpBraceError  Error
hi def link rhelpCurlyError  Error
hi def link rhelpParenError  Error
hi def link rhelpPreProc     PreProc
hi def link rhelpDelimiter   Delimiter
hi def link rhelpComment     Comment
hi def link rhelpRComment    Comment
hi def link rhelpSpecialChar SpecialChar
hi def link rhelpMathSymb    Special
hi def link rhelpMathOp      Operator
let   b:current_syntax = "rhelp"
