Custom R syntax for vim

" Vim syntax file
" Language:       R (GNU S)
" Maintainer:         Jakson Aquino <jalvesaq@gmail.com>
" Former Maintainers: Vaidotas Zemlys <zemlys@gmail.com>
"             Tom Payne <tom@tompayne.org>
" Last Change:        Wed Dec 31, 2014  12:36AM
" Filenames:          *.R *.r *.Rhistory *.Rt
"
" NOTE: The highlighting of R functions is defined in
" runtime files created by a filetype plugin, if installed.
"
" CONFIGURATION:
"   syntax folding can be turned on by
"
let r_syntax_folding = 1
"
" Some lines of code were borrowed from Zhuojun Chen.

if exists("b:current_syntax")
  finish
endif

setlocal iskeyword=@,48-57,_,.

if exists("g:r_syntax_folding")
  setlocal foldmethod=syntax
endif

syn case match

" Comment
syn match   rComment    "#.*$" contains=rTodo,@Spell
syn keyword rTodo       FIXME NOTE NOTES TODO XXX contained

" Roxygen
syn match rOKeyword contained "@\(param\|return\|name\|rdname\|examples\|include\|docType\)"
syn match rOKeyword contained "@\(S3method\|TODO\|aliases\|alias\|assignee\|author\|callGraphDepth\|callGraph\)"
syn match rOKeyword contained "@\(callGraphPrimitives\|concept\|exportClass\|exportMethod\|exportPattern\|export\|formals\)"
syn match rOKeyword contained "@\(format\|importClassesFrom\|importFrom\|importMethodsFrom\|import\|keywords\|useDynLib\)"
syn match rOKeyword contained "@\(method\|noRd\|note\|references\|seealso\|setClass\|slot\|source\|title\|usage\)"
syn match rOKeyword contained "@\(family\|template\|templateVar\|description\|details\|inheritParams\)"
syn match rOComment contains=@Spell,rOKeyword "#'.*"


if &filetype == "rhelp"
  " string enclosed in double quotes
  syn region rString contains=rSpecial,@Spell start=/"/ skip=/\\\\\|\\"/ end=/"/
  " string enclosed in single quotes
  syn region rString contains=rSpecial,@Spell start=/'/ skip=/\\\\\|\\'/ end=/'/
else
  " string enclosed in double quotes
  syn region rString contains=rSpecial,rStrError,@Spell start=/"/ skip=/\\\\\|\\"/ end=/"/
  " string enclosed in single quotes
  syn region rString contains=rSpecial,rStrError,@Spell start=/'/ skip=/\\\\\|\\'/ end=/'/
endif

syn match rStrError display contained "\\."


" New line, carriage return, tab, backspace, bell, feed, vertical tab, backslash
syn match rSpecial display contained "\\\(n\|r\|t\|b\|a\|f\|v\|'\|\"\)\|\\\\"

" Hexadecimal and Octal digits
syn match rSpecial display contained "\\\(x\x\{1,2}\|[0-8]\{1,3}\)"

" Unicode characters
syn match rSpecial display contained "\\u\x\{1,4}"
syn match rSpecial display contained "\\U\x\{1,8}"
syn match rSpecial display contained "\\u{\x\{1,4}}"
syn match rSpecial display contained "\\U{\x\{1,8}}"

" Statement
syn keyword rStatement   break next return
syn keyword rConditional if else
syn keyword rRepeat      for in repeat while

" Constant (not really)
syn keyword rConstant T F LETTERS letters month.abb month.name pi
syn keyword rConstant R.version.string

syn keyword rNumber   NA_integer_ NA_real_ NA_complex_ NA_character_

" Constants
syn keyword rConstant NULL
syn keyword rBoolean  FALSE TRUE
syn keyword rNumber   NA Inf NaN

" integer
syn match rInteger "\<\d\+L"
syn match rInteger "\<0x\([0-9]\|[a-f]\|[A-F]\)\+L"
syn match rInteger "\<\d\+[Ee]+\=\d\+L"

" number with no fractional part or exponent
syn match rNumber "\<\d\+\>"
" hexadecimal number
syn match rNumber "\<0x\([0-9]\|[a-f]\|[A-F]\)\+"

" floating point number with integer and fractional parts and optional exponent
syn match rFloat "\<\d\+\.\d*\([Ee][-+]\=\d\+\)\="
" floating point number with no integer part and optional exponent
syn match rFloat "\<\.\d\+\([Ee][-+]\=\d\+\)\="
" floating point number with no fractional part and optional exponent
syn match rFloat "\<\d\+[Ee][-+]\=\d\+"

" complex number
syn match rComplex "\<\d\+i"
syn match rComplex "\<\d\++\d\+i"
syn match rComplex "\<0x\([0-9]\|[a-f]\|[A-F]\)\+i"
syn match rComplex "\<\d\+\.\d*\([Ee][-+]\=\d\+\)\=i"
syn match rComplex "\<\.\d\+\([Ee][-+]\=\d\+\)\=i"
syn match rComplex "\<\d\+[Ee][-+]\=\d\+i"

syn match rAssign    '='
syn match rOperator    "&"
syn match rOperator    '-'
syn match rOperator    '\*'
syn match rOperator    '+'
if &filetype != "rmd" && &filetype != "rrst"
  syn match rOperator    "[|!<>^~/:]"
else
  syn match rOperator    "[|!<>^~`/:]"
endif
syn match rOperator    "%\{2}\|%\S\{-}%"
syn match rOperator '\([!><]\)\@<=='
syn match rOperator '=='
syn match rOpError  '\*\{3}'
syn match rOpError  '//'
syn match rOpError  '&&&'
syn match rOpError  '|||'
syn match rOpError  '<<'
syn match rOpError  '>>'

syn match rAssign "<\{1,2}-"
syn match rAssign "->\{1,2}"

" Special
" syn match rDelimiter "[,;:]"

" " Error
" if exists("g:r_syntax_folding")
"   syn region rRegion matchgroup=Delimiter start=/(/ matchgroup=Delimiter end=/)/ transparent contains=ALLBUT,rError,rBraceError,rCurlyError fold
"   syn region rRegion matchgroup=Delimiter start=/{/ matchgroup=Delimiter end=/}/ transparent contains=ALLBUT,rError,rBraceError,rParenError fold
"   syn region rRegion matchgroup=Delimiter start=/\[/ matchgroup=Delimiter end=/]/ transparent contains=ALLBUT,rError,rCurlyError,rParenError fold
" else
"   syn region rRegion matchgroup=Delimiter start=/(/ matchgroup=Delimiter end=/)/ transparent contains=ALLBUT,rError,rBraceError,rCurlyError
"   syn region rRegion matchgroup=Delimiter start=/{/ matchgroup=Delimiter end=/}/ transparent contains=ALLBUT,rError,rBraceError,rParenError
"   syn region rRegion matchgroup=Delimiter start=/\[/ matchgroup=Delimiter end=/]/ transparent contains=ALLBUT,rError,rCurlyError,rParenError
" endif

" syn match rError      "[)\]}]"
" syn match rBraceError "[)}]" contained
" syn match rCurlyError "[)\]]" contained
" syn match rParenError "[\]}]" contained

" Source list of R functions produced by a filetype plugin (if installed)
if has("nvim")
  " Nvim-R
  runtime R/functions.vim
else
  " Vim-R-plugin
  runtime r-plugin/functions.vim
endif

" syn match rDollar display contained "\$"
" syn match rDollar display contained "@"
syn match rDollar display contained "\$"
syn match rDollar display contained "@"

" " List elements will not be highlighted as functions:
syn match rLstElmt "\$[a-zA-Z0-9\\._]*" contains=rDollar
syn match rLstElmt "@[a-zA-Z0-9\\._]*" contains=rDollar

" Functions that may add new objects
syn keyword rPreProc     library require attach detach source

if &filetype == "rhelp"
  syn match rHelpIdent '\\method'
  syn match rHelpIdent '\\S4method'
endif

" Name of object with spaces
if &filetype != "rmd" && &filetype != "rrst"
  syn region rNameWSpace start="`" end="`"
endif

if &filetype == "rhelp"
  syn match rhPreProc "^#ifdef.*"
  syn match rhPreProc "^#endif.*"
  syn match rhSection "\\dontrun\>"
endif

if exists("r_syn_minlines")
  exe "syn sync minlines=" . r_syn_minlines
else
  syn sync minlines=40
endif

" Built-in functions
" Base
syn keyword rBuiltin abbreviate abs acos acosh addNA addTaskCallback
syn keyword rBuiltin agrep agrepl alist all all.equal
syn keyword rBuiltin all.equal.character all.equal.default
syn keyword rBuiltin all.equal.environment all.equal.envRefClass
syn keyword rBuiltin all.equal.factor all.equal.formula
syn keyword rBuiltin all.equal.language all.equal.list
syn keyword rBuiltin all.equal.numeric all.equal.POSIXt all.equal.raw
syn keyword rBuiltin all.names all.vars any anyDuplicated
syn keyword rBuiltin anyDuplicated.array anyDuplicated.data.frame
syn keyword rBuiltin anyDuplicated.default anyDuplicated.matrix anyNA
syn keyword rBuiltin anyNA.numeric_version anyNA.POSIXlt aperm
syn keyword rBuiltin aperm.default aperm.table append apply Arg args
syn keyword rBuiltin array arrayInd as.array as.array.default as.call
syn keyword rBuiltin as.character as.character.condition
syn keyword rBuiltin as.character.Date as.character.default
syn keyword rBuiltin as.character.error as.character.factor
syn keyword rBuiltin as.character.hexmode as.character.numeric_version
syn keyword rBuiltin as.character.octmode as.character.POSIXt
syn keyword rBuiltin as.character.srcref as.complex as.data.frame
syn keyword rBuiltin as.data.frame.array as.data.frame.AsIs
syn keyword rBuiltin as.data.frame.character as.data.frame.complex
syn keyword rBuiltin as.data.frame.data.frame as.data.frame.Date
syn keyword rBuiltin as.data.frame.default as.data.frame.difftime
syn keyword rBuiltin as.data.frame.factor as.data.frame.integer
syn keyword rBuiltin as.data.frame.list as.data.frame.logical
syn keyword rBuiltin as.data.frame.matrix as.data.frame.model.matrix
syn keyword rBuiltin as.data.frame.noquote as.data.frame.numeric
syn keyword rBuiltin as.data.frame.numeric_version
syn keyword rBuiltin as.data.frame.ordered as.data.frame.POSIXct
syn keyword rBuiltin as.data.frame.POSIXlt as.data.frame.raw
syn keyword rBuiltin as.data.frame.table as.data.frame.ts
syn keyword rBuiltin as.data.frame.vector as.Date as.Date.character
syn keyword rBuiltin as.Date.date as.Date.dates as.Date.default
syn keyword rBuiltin as.Date.factor as.Date.numeric as.Date.POSIXct
syn keyword rBuiltin as.Date.POSIXlt as.difftime as.double
syn keyword rBuiltin as.double.difftime as.double.POSIXlt
syn keyword rBuiltin as.environment as.expression as.expression.default
syn keyword rBuiltin as.factor as.function as.function.default
syn keyword rBuiltin as.hexmode as.integer as.list as.list.data.frame
syn keyword rBuiltin as.list.Date as.list.default as.list.environment
syn keyword rBuiltin as.list.factor as.list.function
syn keyword rBuiltin as.list.numeric_version as.list.POSIXct as.logical
syn keyword rBuiltin as.logical.factor as.matrix as.matrix.data.frame
syn keyword rBuiltin as.matrix.default as.matrix.noquote
syn keyword rBuiltin as.matrix.POSIXlt as.name as.null as.null.default
syn keyword rBuiltin as.numeric as.numeric_version as.octmode
syn keyword rBuiltin as.ordered as.package_version as.pairlist
syn keyword rBuiltin as.POSIXct as.POSIXct.date as.POSIXct.Date
syn keyword rBuiltin as.POSIXct.dates as.POSIXct.default
syn keyword rBuiltin as.POSIXct.numeric as.POSIXct.POSIXlt as.POSIXlt
syn keyword rBuiltin as.POSIXlt.character as.POSIXlt.date
syn keyword rBuiltin as.POSIXlt.Date as.POSIXlt.dates
syn keyword rBuiltin as.POSIXlt.default as.POSIXlt.factor
syn keyword rBuiltin as.POSIXlt.numeric as.POSIXlt.POSIXct as.qr as.raw
syn keyword rBuiltin as.single as.single.default as.symbol as.table
syn keyword rBuiltin as.table.default as.vector as.vector.factor asin
syn keyword rBuiltin asinh asNamespace asS3 asS4 assign atan atan2
syn keyword rBuiltin atanh attach attachNamespace attr attr.all.equal
syn keyword rBuiltin attributes autoload autoloader backsolve baseenv
syn keyword rBuiltin basename besselI besselJ besselK besselY beta
syn keyword rBuiltin bindingIsActive bindingIsLocked bindtextdomain
syn keyword rBuiltin bitwAnd bitwNot bitwOr bitwShiftL bitwShiftR
syn keyword rBuiltin bitwXor body bquote break browser browserCondition
syn keyword rBuiltin browserSetDebug browserText builtins by
syn keyword rBuiltin by.data.frame by.default bzfile c c.Date c.noquote
syn keyword rBuiltin c.numeric_version c.POSIXct c.POSIXlt c.warnings
syn keyword rBuiltin call callCC capabilities casefold cat cbind
syn keyword rBuiltin cbind.data.frame ceiling char.expand character
syn keyword rBuiltin charmatch charToRaw chartr check_tzones chol
syn keyword rBuiltin chol.default chol2inv choose class clearPushBack
syn keyword rBuiltin close close.connection close.srcfile
syn keyword rBuiltin close.srcfilealias closeAllConnections col
syn keyword rBuiltin colMeans colnames colSums commandArgs comment
syn keyword rBuiltin complex computeRestarts conditionCall
syn keyword rBuiltin conditionCall.condition conditionMessage
syn keyword rBuiltin conditionMessage.condition conflicts Conj
syn keyword rBuiltin contributors cos cosh cospi crossprod Cstack_info
syn keyword rBuiltin cummax cummin cumprod cumsum curlGetHeaders cut
syn keyword rBuiltin cut.Date cut.default cut.POSIXt data.class
syn keyword rBuiltin data.frame data.matrix date debug debuggingState
syn keyword rBuiltin debugonce default.stringsAsFactors delayedAssign
syn keyword rBuiltin deparse det detach determinant determinant.matrix
syn keyword rBuiltin dget diag diff diff.Date diff.default diff.POSIXt
syn keyword rBuiltin difftime digamma dim dim.data.frame dimnames
syn keyword rBuiltin dimnames.data.frame dir dir.create dir.exists
syn keyword rBuiltin dirname do.call dontCheck double dput dQuote drop
syn keyword rBuiltin droplevels droplevels.data.frame droplevels.factor
syn keyword rBuiltin dump duplicated duplicated.array
syn keyword rBuiltin duplicated.data.frame duplicated.default
syn keyword rBuiltin duplicated.matrix duplicated.numeric_version
syn keyword rBuiltin duplicated.POSIXlt dyn.load dyn.unload dynGet
syn keyword rBuiltin eapply eigen emptyenv enc2native enc2utf8
syn keyword rBuiltin encodeString Encoding enquote env.profile
syn keyword rBuiltin environment environmentIsLocked environmentName
syn keyword rBuiltin eval eval.parent evalq exists exp expand.grid
syn keyword rBuiltin expm1 expression extSoftVersion F factor factorial
syn keyword rBuiltin fifo file file.access file.append file.choose
syn keyword rBuiltin file.copy file.create file.exists file.info
syn keyword rBuiltin file.link file.mode file.mtime file.path
syn keyword rBuiltin file.remove file.rename file.show file.size
syn keyword rBuiltin file.symlink Filter Find find.package findInterval
syn keyword rBuiltin findPackageEnv findRestart floor flush
syn keyword rBuiltin flush.connection for force forceAndCall formals
syn keyword rBuiltin format format.AsIs format.data.frame format.Date
syn keyword rBuiltin format.default format.difftime format.factor
syn keyword rBuiltin format.hexmode format.info format.libraryIQR
syn keyword rBuiltin format.numeric_version format.octmode
syn keyword rBuiltin format.packageInfo format.POSIXct format.POSIXlt
syn keyword rBuiltin format.pval format.summaryDefault formatC formatDL
syn keyword rBuiltin forwardsolve function gamma gc gc.time gcinfo
syn keyword rBuiltin gctorture gctorture2 get get0 getAllConnections
syn keyword rBuiltin getCallingDLL getCallingDLLe getConnection
syn keyword rBuiltin getDLLRegisteredRoutines
syn keyword rBuiltin getDLLRegisteredRoutines.character
syn keyword rBuiltin getDLLRegisteredRoutines.DLLInfo getElement
syn keyword rBuiltin geterrmessage getExportedValue getHook
syn keyword rBuiltin getLoadedDLLs getNamespace getNamespaceExports
syn keyword rBuiltin getNamespaceImports getNamespaceInfo
syn keyword rBuiltin getNamespaceName getNamespaceUsers
syn keyword rBuiltin getNamespaceVersion getNativeSymbolInfo getOption
syn keyword rBuiltin getRversion getSrcLines getTaskCallbackNames
syn keyword rBuiltin gettext gettextf getwd gl globalenv gregexpr grep
syn keyword rBuiltin grepl grepRaw gsub gzcon gzfile I iconv iconvlist
syn keyword rBuiltin icuGetCollate icuSetCollate identical identity if
syn keyword rBuiltin ifelse Im importIntoEnv inherits integer
syn keyword rBuiltin interaction interactive intersect intToBits
syn keyword rBuiltin intToUtf8 inverse.rle invisible invokeRestart
syn keyword rBuiltin invokeRestartInteractively is.array is.atomic
syn keyword rBuiltin is.call is.character is.complex is.data.frame
syn keyword rBuiltin is.double is.element is.environment is.expression
syn keyword rBuiltin is.factor is.finite is.function is.infinite
syn keyword rBuiltin is.integer is.language is.list is.loaded
syn keyword rBuiltin is.logical is.matrix is.na is.na.data.frame
syn keyword rBuiltin is.na.numeric_version is.na.POSIXlt is.name is.nan
syn keyword rBuiltin is.null is.numeric is.numeric.Date
syn keyword rBuiltin is.numeric.difftime is.numeric.POSIXt
syn keyword rBuiltin is.numeric_version is.object is.ordered
syn keyword rBuiltin is.package_version is.pairlist is.primitive is.qr
syn keyword rBuiltin is.R is.raw is.recursive is.single is.symbol
syn keyword rBuiltin is.table is.unsorted is.vector isatty
syn keyword rBuiltin isBaseNamespace isdebugged isIncomplete
syn keyword rBuiltin isNamespace isNamespaceLoaded ISOdate ISOdatetime
syn keyword rBuiltin isOpen isRestart isS4 isSeekable isSymmetric
syn keyword rBuiltin isSymmetric.matrix isTRUE jitter julian
syn keyword rBuiltin julian.Date julian.POSIXt kappa kappa.default
syn keyword rBuiltin kappa.lm kappa.qr kronecker l10n_info La.svd
syn keyword rBuiltin La_version labels labels.default lapply lazyLoad
syn keyword rBuiltin lazyLoadDBexec lazyLoadDBfetch lbeta lchoose
syn keyword rBuiltin length length.POSIXlt lengths letters LETTERS
syn keyword rBuiltin levels levels.default lfactorial lgamma
syn keyword rBuiltin libcurlVersion library library.dynam
syn keyword rBuiltin library.dynam.unload licence license list
syn keyword rBuiltin list.dirs list.files list2env load
syn keyword rBuiltin loadedNamespaces loadingNamespaceInfo
syn keyword rBuiltin loadNamespace local lockBinding lockEnvironment
syn keyword rBuiltin log log10 log1p log2 logb logical lower.tri ls
syn keyword rBuiltin make.names make.unique makeActiveBinding Map
syn keyword rBuiltin mapply margin.table mat.or.vec match match.arg
syn keyword rBuiltin match.call match.fun Math.data.frame Math.Date
syn keyword rBuiltin Math.difftime Math.factor Math.POSIXt matrix max
syn keyword rBuiltin max.col mean mean.Date mean.default mean.difftime
syn keyword rBuiltin mean.POSIXct mean.POSIXlt mem.limits memCompress
syn keyword rBuiltin memDecompress memory.profile merge
syn keyword rBuiltin merge.data.frame merge.default message mget min
syn keyword rBuiltin missing Mod mode month.abb month.name months
syn keyword rBuiltin months.Date months.POSIXt names names.POSIXlt
syn keyword rBuiltin namespaceExport namespaceImport
syn keyword rBuiltin namespaceImportClasses namespaceImportFrom
syn keyword rBuiltin namespaceImportMethods nargs nchar ncol NCOL
syn keyword rBuiltin Negate new.env next NextMethod ngettext nlevels
syn keyword rBuiltin noquote norm normalizePath nrow NROW numeric
syn keyword rBuiltin numeric_version nzchar objects oldClass OlsonNames
syn keyword rBuiltin on.exit open open.connection open.srcfile
syn keyword rBuiltin open.srcfilealias open.srcfilecopy Ops.data.frame
syn keyword rBuiltin Ops.Date Ops.difftime Ops.factor
syn keyword rBuiltin Ops.numeric_version Ops.ordered Ops.POSIXt options
syn keyword rBuiltin order ordered outer package_version packageEvent
syn keyword rBuiltin packageHasNamespace packageStartupMessage packBits
syn keyword rBuiltin pairlist parent.env parent.frame parse
syn keyword rBuiltin parseNamespaceFile paste paste0 path.expand
syn keyword rBuiltin path.package pcre_config pi pipe pmatch pmax
syn keyword rBuiltin pmax.int pmin pmin.int polyroot pos.to.env
syn keyword rBuiltin Position pretty pretty.default prettyNum print
syn keyword rBuiltin print.AsIs print.by print.condition
syn keyword rBuiltin print.connection print.data.frame print.Date
syn keyword rBuiltin print.default print.difftime print.Dlist
syn keyword rBuiltin print.DLLInfo print.DLLInfoList
syn keyword rBuiltin print.DLLRegisteredRoutines print.factor
syn keyword rBuiltin print.function print.hexmode print.libraryIQR
syn keyword rBuiltin print.listof print.NativeRoutineList print.noquote
syn keyword rBuiltin print.numeric_version print.octmode
syn keyword rBuiltin print.packageInfo print.POSIXct print.POSIXlt
syn keyword rBuiltin print.proc_time print.restart print.rle
syn keyword rBuiltin print.simple.list print.srcfile print.srcref
syn keyword rBuiltin print.summary.table print.summaryDefault
syn keyword rBuiltin print.table print.warnings prmatrix proc.time prod
syn keyword rBuiltin prop.table provideDimnames psigamma pushBack
syn keyword rBuiltin pushBackLength q qr qr.coef qr.default qr.fitted
syn keyword rBuiltin qr.Q qr.qty qr.qy qr.R qr.resid qr.solve qr.X
syn keyword rBuiltin quarters quarters.Date quarters.POSIXt quit quote
syn keyword rBuiltin R.home R.version R.Version R.version.string
syn keyword rBuiltin R_system_version range range.default rank rapply
syn keyword rBuiltin raw rawConnection rawConnectionValue rawShift
syn keyword rBuiltin rawToBits rawToChar rbind rbind.data.frame rcond
syn keyword rBuiltin Re read.dcf readBin readChar readline readLines
syn keyword rBuiltin readRDS readRenviron Recall Reduce reg.finalizer
syn keyword rBuiltin regexec regexpr registerS3method registerS3methods
syn keyword rBuiltin regmatches remove removeTaskCallback rep rep.Date
syn keyword rBuiltin rep.factor rep.int rep.numeric_version rep.POSIXct
syn keyword rBuiltin rep.POSIXlt rep_len repeat replace replicate
syn keyword rBuiltin require requireNamespace restartDescription
syn keyword rBuiltin restartFormals retracemem return returnValue rev
syn keyword rBuiltin rev.default rle rm RNGkind RNGversion round
syn keyword rBuiltin round.Date round.POSIXt row row.names
syn keyword rBuiltin row.names.data.frame row.names.default rowMeans
syn keyword rBuiltin rownames rowsum rowsum.data.frame rowsum.default
syn keyword rBuiltin rowSums sample sample.int sapply save save.image
syn keyword rBuiltin saveRDS scale scale.default scan search
syn keyword rBuiltin searchpaths seek seek.connection seq seq.Date
syn keyword rBuiltin seq.default seq.int seq.POSIXt seq_along seq_len
syn keyword rBuiltin sequence serialize set.seed setdiff setequal
syn keyword rBuiltin setHook setNamespaceInfo setSessionTimeLimit
syn keyword rBuiltin setTimeLimit setwd shell shell.exec
syn keyword rBuiltin showConnections shQuote sign signalCondition
syn keyword rBuiltin signif simpleCondition simpleError simpleMessage
syn keyword rBuiltin simpleWarning simplify2array sin single sinh sink
syn keyword rBuiltin sink.number sinpi slice.index socketConnection
syn keyword rBuiltin socketSelect solve solve.default solve.qr sort
syn keyword rBuiltin sort.default sort.int sort.list sort.POSIXlt
syn keyword rBuiltin source split split.data.frame split.Date
syn keyword rBuiltin split.default split.POSIXct sprintf sqrt sQuote
syn keyword rBuiltin srcfile srcfilealias srcfilecopy srcref
syn keyword rBuiltin standardGeneric stderr stdin stdout stop stopifnot
syn keyword rBuiltin storage.mode strftime strptime strsplit strtoi
syn keyword rBuiltin strtrim structure strwrap sub subset
syn keyword rBuiltin subset.data.frame subset.default subset.matrix
syn keyword rBuiltin substitute substr substring sum summary
syn keyword rBuiltin summary.connection summary.data.frame
syn keyword rBuiltin Summary.data.frame summary.Date Summary.Date
syn keyword rBuiltin summary.default Summary.difftime summary.factor
syn keyword rBuiltin Summary.factor summary.matrix
syn keyword rBuiltin Summary.numeric_version Summary.ordered
syn keyword rBuiltin summary.POSIXct Summary.POSIXct summary.POSIXlt
syn keyword rBuiltin Summary.POSIXlt summary.proc_time summary.srcfile
syn keyword rBuiltin summary.srcref summary.table suppressMessages
syn keyword rBuiltin suppressPackageStartupMessages suppressWarnings
syn keyword rBuiltin svd sweep switch sys.call sys.calls Sys.chmod
syn keyword rBuiltin Sys.Date sys.frame sys.frames sys.function
syn keyword rBuiltin Sys.getenv Sys.getlocale Sys.getpid Sys.glob
syn keyword rBuiltin Sys.info Sys.junction sys.load.image
syn keyword rBuiltin Sys.localeconv sys.nframe sys.on.exit sys.parent
syn keyword rBuiltin sys.parents Sys.readlink sys.save.image Sys.setenv
syn keyword rBuiltin Sys.setFileTime Sys.setlocale Sys.sleep sys.source
syn keyword rBuiltin sys.status Sys.time Sys.timezone Sys.umask
syn keyword rBuiltin Sys.unsetenv Sys.which system system.file
syn keyword rBuiltin system.time system2 t T t.data.frame t.default
syn keyword rBuiltin table tabulate tan tanh tanpi tapply
syn keyword rBuiltin taskCallbackManager tcrossprod tempdir tempfile
syn keyword rBuiltin testPlatformEquivalence textConnection
syn keyword rBuiltin textConnectionValue tolower topenv toString
syn keyword rBuiltin toString.default toupper trace traceback tracemem
syn keyword rBuiltin tracingState transform transform.data.frame
syn keyword rBuiltin transform.default trigamma trimws trunc trunc.Date
syn keyword rBuiltin trunc.POSIXt truncate truncate.connection try
syn keyword rBuiltin tryCatch typeof unclass undebug union unique
syn keyword rBuiltin unique.array unique.data.frame unique.default
syn keyword rBuiltin unique.matrix unique.numeric_version
syn keyword rBuiltin unique.POSIXlt unique.warnings units
syn keyword rBuiltin units.difftime unix.time unlink unlist
syn keyword rBuiltin unloadNamespace unlockBinding unname unserialize
syn keyword rBuiltin unsplit untrace untracemem unz upper.tri url
syn keyword rBuiltin UseMethod utf8ToInt vapply vector Vectorize
syn keyword rBuiltin version warning warnings weekdays weekdays.Date
syn keyword rBuiltin weekdays.POSIXt which which.max which.min while
syn keyword rBuiltin with with.default withCallingHandlers within
syn keyword rBuiltin within.data.frame within.list withRestarts
syn keyword rBuiltin withVisible write write.dcf writeBin writeChar
syn keyword rBuiltin writeLines xor xor.hexmode xor.octmode
syn keyword rBuiltin xpdrows.data.frame xtfrm xtfrm.AsIs xtfrm.Date
syn keyword rBuiltin xtfrm.default xtfrm.difftime xtfrm.factor
syn keyword rBuiltin xtfrm.numeric_version xtfrm.POSIXct xtfrm.POSIXlt
syn keyword rBuiltin xtfrm.Surv xzfile zapsmall
"Stats
syn keyword rBuiltin acf acf2AR add.scope add1 addmargins aggregate AIC
syn keyword rBuiltin alias anova anova.glm anova.lm anova.mlm
syn keyword rBuiltin ansari.test aov approx approxfun ar ar.burg
syn keyword rBuiltin ar.burg.default ar.mle ar.ols ar.yw ar.yw.default
syn keyword rBuiltin arima arima.sim arima0 ARMAacf ARMAtoMA
syn keyword rBuiltin as.dendrogram as.dist as.formula as.hclust
syn keyword rBuiltin as.hclust.dendrogram as.matrix.dist as.stepfun
syn keyword rBuiltin as.ts asOneSidedFormula ave bandwidth.kernel
syn keyword rBuiltin bartlett.test Beta BIC binom.test Binomial
syn keyword rBuiltin binomial biplot biplot.princomp Box.test bw.bcv
syn keyword rBuiltin bw.nrd bw.nrd0 bw.SJ bw.ucv C cancor case.names
syn keyword rBuiltin case.names.lm Cauchy cbind.ts ccf chisq.test
syn keyword rBuiltin Chisquare cmdscale coef coefficients
syn keyword rBuiltin complete.cases confint constrOptim contr.helmert
syn keyword rBuiltin contr.poly contr.SAS contr.sum contr.treatment
syn keyword rBuiltin contrasts convolve cooks.distance
syn keyword rBuiltin cooks.distance.lm cophenetic cor cor.test cov
syn keyword rBuiltin cov.wt cov2cor covratio cpgram cut.dendrogram
syn keyword rBuiltin cutree cycle D dbeta dbinom dcauchy dchisq
syn keyword rBuiltin decompose delete.response deltat dendrapply
syn keyword rBuiltin dendrogram density deriv deriv3 deviance dexp df
syn keyword rBuiltin df.kernel df.residual dfbeta dfbetas dffits dgamma
syn keyword rBuiltin dgeom dhyper diff.ts diffinv dist distribution
syn keyword rBuiltin Distributions distributions dlnorm dlogis
syn keyword rBuiltin dmultinom dnbinom dnorm dpois drop.scope
syn keyword rBuiltin drop.terms drop1 dsignrank dt dummy.coef
syn keyword rBuiltin dummy.coef.lm dunif dweibull dwilcox ecdf
syn keyword rBuiltin eff.aovlist effects embed end Error estVar
syn keyword rBuiltin expand.model.frame Exponential extractAIC factanal
syn keyword rBuiltin factor.scope family family.glm family.lm FDist fft
syn keyword rBuiltin filter fisher.test fitted.kmeans fitted.values
syn keyword rBuiltin fivenum fligner.test format.dist format.ftable
syn keyword rBuiltin formula formula.lm formula.nls frequency
syn keyword rBuiltin friedman.test ftable ftable.formula Gamma
syn keyword rBuiltin GammaDist gaussian Geometric getCall getInitial
syn keyword rBuiltin get_all_vars glm glm.control hasTsp hat hatvalues
syn keyword rBuiltin hclust heatmap HoltWinters Hypergeometric
syn keyword rBuiltin identify.hclust influence influence.measures
syn keyword rBuiltin integrate interaction.plot inverse.gaussian IQR
syn keyword rBuiltin is.empty.model is.leaf is.mts is.stepfun is.ts
syn keyword rBuiltin is.tskernel isoreg KalmanForecast KalmanLike
syn keyword rBuiltin KalmanRun KalmanSmooth kernapply kernel kmeans
syn keyword rBuiltin knots kruskal.test ks.test ksmooth
syn keyword rBuiltin labels.dendrogram labels.dist labels.lm
syn keyword rBuiltin labels.terms lag lag.plot line lines.isoreg
syn keyword rBuiltin lines.stepfun lines.ts listof lm lm.fit
syn keyword rBuiltin lm.influence lm.wfit loadings loess loess.control
syn keyword rBuiltin loess.smooth Logistic logLik loglin Lognormal
syn keyword rBuiltin lowess ls.diag ls.print lsfit mad mahalanobis
syn keyword rBuiltin make.link makeARIMA makepredictcall
syn keyword rBuiltin makepredictcall.poly manova mantelhaen.test
syn keyword rBuiltin mauchly.test mcnemar.test median medpolish
syn keyword rBuiltin merge.dendrogram model.extract model.frame
syn keyword rBuiltin model.matrix model.offset model.response
syn keyword rBuiltin model.tables model.weights monthplot mood.test
syn keyword rBuiltin Multinomial mvfft na.action na.contiguous
syn keyword rBuiltin na.exclude na.fail na.omit na.omit.ts na.pass
syn keyword rBuiltin napredict naprint naresid NegBinomial nextn nlm
syn keyword rBuiltin nlminb nls nls.control NLSstAsymptotic
syn keyword rBuiltin NLSstClosestX NLSstLfAsymptote NLSstRtAsymptote
syn keyword rBuiltin nobs nobs.dendrogram Normal numericDeriv offset
syn keyword rBuiltin oneway.test Ops.ts optim optimHess optimise
syn keyword rBuiltin optimize order.dendrogram p.adjust
syn keyword rBuiltin p.adjust.methods pacf pairwise.prop.test
syn keyword rBuiltin pairwise.t.test pairwise.table
syn keyword rBuiltin pairwise.wilcox.test pbeta pbinom pbirthday
syn keyword rBuiltin pcauchy pchisq pexp pf pgamma pgeom phyper plclust
syn keyword rBuiltin plnorm plogis plot.acf plot.decomposed.ts
syn keyword rBuiltin plot.dendrogram plot.density plot.ecdf plot.hclust
syn keyword rBuiltin plot.HoltWinters plot.isoreg plot.lm plot.ppr
syn keyword rBuiltin plot.prcomp plot.princomp plot.profile.nls
syn keyword rBuiltin plot.spec plot.spec.coherency plot.stepfun
syn keyword rBuiltin plot.stl plot.ts plot.tskernel pnbinom pnorm
syn keyword rBuiltin Poisson poisson poisson.test poly polym power
syn keyword rBuiltin power.anova.test power.prop.test power.t.test
syn keyword rBuiltin PP.test ppoints ppois ppr prcomp predict
syn keyword rBuiltin predict.ar predict.Arima predict.arima0
syn keyword rBuiltin predict.glm predict.HoltWinters predict.lm
syn keyword rBuiltin predict.loess predict.nls predict.poly
syn keyword rBuiltin predict.prcomp predict.princomp
syn keyword rBuiltin predict.smooth.spline predict.StructTS preplot
syn keyword rBuiltin princomp print.aov print.ar print.arima0
syn keyword rBuiltin print.dendrogram print.dist print.ecdf
syn keyword rBuiltin print.formula print.ftable print.hclust
syn keyword rBuiltin print.HoltWinters print.htest print.integrate
syn keyword rBuiltin print.kmeans print.loadings print.power.htest
syn keyword rBuiltin print.prcomp print.princomp print.stepfun
syn keyword rBuiltin print.StructTS print.summary.aov print.summary.glm
syn keyword rBuiltin print.summary.lm print.summary.manova
syn keyword rBuiltin print.summary.nls print.summary.prcomp
syn keyword rBuiltin print.summary.princomp print.ts print.xtabs
syn keyword rBuiltin printCoefmat profile profile.nls proj promax
syn keyword rBuiltin prop.test prop.trend.test psignrank pt ptukey
syn keyword rBuiltin punif pweibull pwilcox qbeta qbinom qbirthday
syn keyword rBuiltin qcauchy qchisq qexp qf qgamma qgeom qhyper qlnorm
syn keyword rBuiltin qlogis qnbinom qnorm qpois qqline qqnorm qqplot
syn keyword rBuiltin qsignrank qt qtukey quade.test quantile
syn keyword rBuiltin quantile.ecdf quasi quasibinomial quasipoisson
syn keyword rBuiltin qunif qweibull qwilcox r2dtable rbeta rbinom
syn keyword rBuiltin rcauchy rchisq read.ftable rect.hclust reformulate
syn keyword rBuiltin relevel reorder reorder.dendrogram replications
syn keyword rBuiltin reshape resid residuals residuals.glm
syn keyword rBuiltin residuals.HoltWinters residuals.lm
syn keyword rBuiltin residuals.tukeyline rev.dendrogram rexp rf rgamma
syn keyword rBuiltin rgeom rhyper rlnorm rlogis rmultinom rnbinom rnorm
syn keyword rBuiltin rpois rsignrank rstandard rstudent rt runif runmed
syn keyword rBuiltin rweibull rwilcox rWishart SafePrediction
syn keyword rBuiltin scatter.smooth screeplot sd se.contrast
syn keyword rBuiltin se.contrast.aov selfStart setNames shapiro.test
syn keyword rBuiltin SignRank simulate smooth smooth.spline smoothEnds
syn keyword rBuiltin sortedXyData spec spec.ar spec.pgram spec.taper
syn keyword rBuiltin spectrum spline splinefun splinefunH SSasymp
syn keyword rBuiltin SSasympOff SSasympOrig SSbiexp SSD SSfol SSfpl
syn keyword rBuiltin SSgompertz SSlogis SSmicmen SSweibull start
syn keyword rBuiltin stat.anova stats stats-deprecated step stepfun stl
syn keyword rBuiltin str.dendrogram StructTS summary.aov summary.ecdf
syn keyword rBuiltin summary.glm summary.lm summary.manova summary.nls
syn keyword rBuiltin summary.prcomp summary.princomp summary.stepfun
syn keyword rBuiltin supsmu symnum t.test t.ts TDist termplot terms
syn keyword rBuiltin terms.formula terms.object time time.default
syn keyword rBuiltin toeplitz ts ts.intersect ts.plot ts.union tsdiag
syn keyword rBuiltin tsp tsSmooth Tukey TukeyHSD Uniform uniroot update
syn keyword rBuiltin update.formula var var.test variable.names
syn keyword rBuiltin variable.names.lm varimax vcov vcov.lme
syn keyword rBuiltin vcov.summary.lm Weibull weighted.mean
syn keyword rBuiltin weighted.mean.default weighted.residuals weights
syn keyword rBuiltin weights.glm wilcox.test Wilcoxon window
syn keyword rBuiltin write.ftable xtabs .checkMFClasses .getXlevels
syn keyword rBuiltin .lm.fit .MFclass .nknots.smspl .preformat.ts

" Type
syn keyword rType array category character complex double function integer list logical matrix numeric vector data.frame

if version >= 508
  if version <= 508
    command -nargs=+ HiLink hi link <args>
  else
    command -nargs=+ HiLink hi def link <args>
  endif

  " The default highlight links.  Can be overridden later.
  HiLink rTodo          Todo
  HiLink rQuotes        String
  HiLink rEscape        Special
  HiLink rAssign        Statement
  HiLink rBoolean       Boolean
  HiLink rBuiltin       Function
  HiLink rBraceError    Error
  HiLink rComment       Comment
  HiLink rCommentTodo   Todo
  HiLink rOComment      Comment
  HiLink rComplex       Number
  HiLink rConditional   Conditional
  HiLink rConstant      Constant
  HiLink rCurlyError    Error
  HiLink rDelimiter     Delimiter
  HiLink rDollar        Type
  HiLink rError         Error
  HiLink rFloat         Float
  HiLink rFunction      Function
  HiLink rHelpIdent     Identifier
  HiLink rhPreProc      PreProc
  HiLink rhSection      PreCondit
  HiLink rInteger       Number
  HiLink rLstElmt       Normal
  HiLink rNameWSpace    Normal
  HiLink rNumber        Number
  HiLink rOperator      Operator
  HiLink rOpError       Error
  HiLink rParenError    Error
  HiLink rPreProc       PreProc
  HiLink rRepeat        Repeat
  HiLink rSpecial       SpecialChar
  HiLink rStatement     Statement
  HiLink rString        String
  HiLink rStrError      Error
  HiLink rType          Type
  HiLink rOKeyword      Title
  delcommand HiLink
endif

" Define the default highlighting.

let b:current_syntax="r"

" vim: ts=8 sw=2