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" 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>
" Contributor: Johannes Ranke <jranke@uni-bremen.de>
" Homepage: https://github.com/jalvesaq/R-Vim-runtime
" Last Change: Sat Apr 08, 2017 07:01PM
" Filenames: *.R *.r *.Rhistory *.Rt
"
" NOTE: The highlighting of R functions might be defined in
" runtime files created by a filetype plugin, if installed.
"
" CONFIGURATION:
" Syntax folding can be turned on by
"
" let r_syntax_folding = 1
"
" ROxygen highlighting can be turned off by
"
" let r_syntax_hl_roxygen = 0
"
" Some lines of code were borrowed from Zhuojun Chen.
if exists("b:current_syntax")
finish
endif
if has("patch-7.4.1142")
syn iskeyword @,48-57,_,.
else
setlocal iskeyword=@,48-57,_,.
endif
" The variables g:r_hl_roxygen and g:r_syn_minlines were renamed on April 8, 2017.
if exists("g:r_hl_roxygen")
let g:r_syntax_hl_roxygen = g:r_hl_roxygen
endif
if exists("g:r_syn_minlines")
let g:r_syntax_minlines = g:r_syn_minlines
endif
if exists("g:r_syntax_folding") && g:r_syntax_folding
setlocal foldmethod=syntax
endif
if !exists("g:r_syntax_hl_roxygen")
let g:r_syntax_hl_roxygen = 1
endif
syn case match
" Comment
syn match rCommentTodo contained "\(BUG\|FIXME\|NOTE\|TODO\):"
syn match rComment contains=@Spell,rCommentTodo,rOBlock "#.*"
" Roxygen
if g:r_syntax_hl_roxygen
" A roxygen block can start at the beginning of a file (first version) and
" after a blank line (second version). It ends when a line that does not
" contain a roxygen comment. In the following comments, any line containing
" a roxygen comment marker (one or two hash signs # followed by a single
" quote ' and preceded only by whitespace) is called a roxygen line. A
" roxygen line containing only a roxygen comment marker, optionally followed
" by whitespace is called an empty roxygen line.
" First we match all roxygen blocks as containing only a title. In case an
" empty roxygen line ending the title or a tag is found, this will be
" overriden later by the definitions of rOBlock.
syn match rOTitleBlock "\%^\(\s*#\{1,2}' .*\n\)\{1,}" contains=rOCommentKey,rOTitleTag
syn match rOTitleBlock "^\s*\n\(\s*#\{1,2}' .*\n\)\{1,}" contains=rOCommentKey,rOTitleTag
" When a roxygen block has a title and additional content, the title
" consists of one or more roxygen lines (as little as possible are matched),
" followed either by an empty roxygen line
syn region rOBlock start="\%^\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*$" end="^\s*\(#\{1,2}'\)\@!" contains=rOTitle,rOTag,rOExamples,@Spell keepend fold
syn region rOBlock start="^\s*\n\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*$" end="^\s*\(#\{1,2}'\)\@!" contains=rOTitle,rOTag,rOExamples,@Spell keepend fold
" or by a roxygen tag (we match everything starting with @ but not @@ which is used as escape sequence for a literal @).
syn region rOBlock start="\%^\(\s*#\{1,2}' .*\n\)\{-}\s*#\{1,2}' @\(@\)\@!" end="^\s*\(#\{1,2}'\)\@!" contains=rOTitle,rOTag,rOExamples,@Spell keepend fold
syn region rOBlock start="^\s*\n\(\s*#\{1,2}' .*\n\)\{-}\s*#\{1,2}' @\(@\)\@!" end="^\s*\(#\{1,2}'\)\@!" contains=rOTitle,rOTag,rOExamples,@Spell keepend fold
" If a block contains an @rdname, @describeIn tag, it may have paragraph breaks, but does not have a title
syn region rOBlockNoTitle start="\%^\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*\n\(\s*#\{1,2}'.*\n\)\{-}\s*#\{1,2}' @rdname" end="^\s*\(#\{1,2}'\)\@!" contains=rOTag,rOExamples,@Spell keepend fold
syn region rOBlockNoTitle start="^\s*\n\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*\n\(\s*#\{1,2}'.*\n\)\{-}\s*#\{1,2}' @rdname" end="^\s*\(#\{1,2}'\)\@!" contains=rOTag,rOExamples,@Spell keepend fold
syn region rOBlockNoTitle start="\%^\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*\n\(\s*#\{1,2}'.*\n\)\{-}\s*#\{1,2}' @describeIn" end="^\s*\(#\{1,2}'\)\@!" contains=rOTag,rOExamples,@Spell keepend fold
syn region rOBlockNoTitle start="^\s*\n\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*\n\(\s*#\{1,2}'.*\n\)\{-}\s*#\{1,2}' @describeIn" end="^\s*\(#\{1,2}'\)\@!" contains=rOTag,rOExamples,@Spell keepend fold
" A title as part of a block is always at the beginning of the block, i.e.
" either at the start of a file or after a completely empty line.
syn match rOTitle "\%^\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*$" contained contains=rOCommentKey,rOTitleTag
syn match rOTitle "^\s*\n\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*$" contained contains=rOCommentKey,rOTitleTag
syn match rOTitleTag contained "@title"
syn match rOCommentKey "#\{1,2}'" contained
syn region rOExamples start="^#\{1,2}' @examples.*"rs=e+1,hs=e+1 end="^\(#\{1,2}' @.*\)\@=" end="^\(#\{1,2}'\)\@!" contained contains=rOTag fold
" rOTag list generated from the lists in
" https://github.com/klutometis/roxygen/R/rd.R and
" https://github.com/klutometis/roxygen/R/namespace.R
" using s/^ \([A-Za-z0-9]*\) = .*/ syn match rOTag contained "@\1"/
" Plus we need the @include tag
" rd.R
syn match rOTag contained "@aliases"
syn match rOTag contained "@author"
syn match rOTag contained "@backref"
syn match rOTag contained "@concept"
syn match rOTag contained "@describeIn"
syn match rOTag contained "@description"
syn match rOTag contained "@details"
syn match rOTag contained "@docType"
syn match rOTag contained "@encoding"
syn match rOTag contained "@evalRd"
syn match rOTag contained "@example"
syn match rOTag contained "@examples"
syn match rOTag contained "@family"
syn match rOTag contained "@field"
syn match rOTag contained "@format"
syn match rOTag contained "@inherit"
syn match rOTag contained "@inheritParams"
syn match rOTag contained "@inheritDotParams"
syn match rOTag contained "@inheritSection"
syn match rOTag contained "@keywords"
syn match rOTag contained "@method"
syn match rOTag contained "@name"
syn match rOTag contained "@md"
syn match rOTag contained "@noMd"
syn match rOTag contained "@noRd"
syn match rOTag contained "@note"
syn match rOTag contained "@param"
syn match rOTag contained "@rdname"
syn match rOTag contained "@rawRd"
syn match rOTag contained "@references"
syn match rOTag contained "@return"
syn match rOTag contained "@section"
syn match rOTag contained "@seealso"
syn match rOTag contained "@slot"
syn match rOTag contained "@source"
syn match rOTag contained "@template"
syn match rOTag contained "@templateVar"
syn match rOTag contained "@title"
syn match rOTag contained "@usage"
" namespace.R
syn match rOTag contained "@export"
syn match rOTag contained "@exportClass"
syn match rOTag contained "@exportMethod"
syn match rOTag contained "@exportPattern"
syn match rOTag contained "@import"
syn match rOTag contained "@importClassesFrom"
syn match rOTag contained "@importFrom"
syn match rOTag contained "@importMethodsFrom"
syn match rOTag contained "@rawNamespace"
syn match rOTag contained "@S3method"
syn match rOTag contained "@useDynLib"
" other
syn match rOTag contained "@include"
endif
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
" Use Nvim-R to highlight functions dynamically if it is installed
if !exists("g:r_syntax_fun_pattern")
let s:ff = split(substitute(globpath(&rtp, "R/functions.vim"), "functions.vim", "", "g"), "\n")
if len(s:ff) > 0
let g:r_syntax_fun_pattern = 0
else
let g:r_syntax_fun_pattern = 1
endif
endif
" Only use Nvim-R to highlight functions if they should not be highlighted
" according to a generic pattern
if g:r_syntax_fun_pattern == 1
syn match rFunction '[0-9a-zA-Z_\.]\+\s*\ze('
else
if !exists("g:R_hi_fun")
let g:R_hi_fun = 1
endif
if g:R_hi_fun
" Nvim-R:
runtime R/functions.vim
endif
endif
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
" Type
syn keyword rType array category character complex double function integer list logical matrix numeric vector data.frame
" 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_syntax_minlines")
exe "syn sync minlines=" . r_syntax_minlines
else
syn sync minlines=40
endif
" Define the default highlighting.
hi def link rAssign Statement
hi def link rBoolean Boolean
hi def link rBraceError Error
hi def link rComment Comment
hi def link rCommentTodo Todo
hi def link rComplex Number
hi def link rConditional Conditional
hi def link rConstant Constant
hi def link rCurlyError Error
hi def link rDelimiter Delimiter
hi def link rDollar SpecialChar
hi def link rError Error
hi def link rFloat Float
hi def link rFunction Function
hi def link rHelpIdent Identifier
hi def link rhPreProc PreProc
hi def link rhSection PreCondit
hi def link rInteger Number
hi def link rLstElmt Normal
hi def link rNameWSpace Normal
hi def link rNumber Number
hi def link rOperator Operator
hi def link rOpError Error
hi def link rParenError Error
hi def link rPreProc PreProc
hi def link rRepeat Repeat
hi def link rSpecial SpecialChar
hi def link rStatement Statement
hi def link rString String
hi def link rStrError Error
hi def link rType Type
if g:r_syntax_hl_roxygen
hi def link rOTitleTag Operator
hi def link rOTag Operator
hi def link rOTitleBlock Title
hi def link rOBlock Comment
hi def link rOBlockNoTitle Comment
hi def link rOTitle Title
hi def link rOCommentKey Comment
hi def link rOExamples SpecialComment
endif
let b:current_syntax="r"
" vim: ts=8 sw=2