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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: Sun Dec 24, 2023 08:05AM " 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 syn iskeyword @,48-57,_,. " 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 let g:r_syntax_hl_roxygen = get(g:, 'r_syntax_hl_roxygen', 1) syn case match " Comment syn match rCommentTodo contained "\(BUG\|FIXME\|NOTE\|TODO\):" syn match rTodoParen contained "\(BUG\|FIXME\|NOTE\|TODO\)\s*(.\{-})\s*:" contains=rTodoKeyw,rTodoInfo transparent syn keyword rTodoKeyw BUG FIXME NOTE TODO contained syn match rTodoInfo "(\zs.\{-}\ze)" contained syn match rComment contains=@Spell,rCommentTodo,rTodoParen "#.*" " 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 appears 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. syn match rOCommentKey "^\s*#\{1,2}'" contained syn region rOExamples start="^\s*#\{1,2}' @examples.*"rs=e+1,hs=e+1 end="^\(#\{1,2}' @.*\)\@=" end="^\(#\{1,2}'\)\@!" contained contains=rOTag fold " R6 classes may contain roxygen lines independent of roxygen blocks syn region rOR6Class start=/R6Class(/ end=/)/ transparent contains=ALLBUT,rError,rBraceError,rCurlyError fold syn match rOR6Block "#\{1,2}'.*" contains=rOTag,rOExamples,@Spell containedin=rOR6Class contained syn match rOR6Block "^\s*#\{1,2}'.*" contains=rOTag,rOExamples,@Spell containedin=rOR6Class contained " 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 " overridden later by the definitions of rOBlock. syn match rOTitleBlock "\(\%^\|^\s*\n\)\@<=\(\s*#\{1,2}' .*\n\)\{1,}" contains=rOCommentKey,rOTitleTag " 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 "\(\%^\|^\s*\n\)\@<=\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*$" contained contains=rOCommentKey,rOTitleTag syn match rOTitleTag contained "@title" " 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="\(\%^\|^\s*\n\)\@<=\(\s*#\{1,2}' .*\n\)\{-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="\(\%^\|^\s*\n\)\@<=\(\s*#\{1,2}' .*\n\)\{-}\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="\(\%^\|^\s*\n\)\@<=\(\s*#\{1,2}' .*\n\)\{-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="\(\%^\|^\s*\n\)\@<=\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*\n\(\s*#\{1,2}'.*\n\)\{-}\s*#\{1,2}' @describeIn" end="^\s*\(#\{1,2}'\)\@!" contains=rOTag,rOExamples,@Spell keepend fold " rOTag list originally generated from the lists that were available 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 "@eval" syn match rOTag contained "@include" syn match rOTag contained "@includeRmd" syn match rOTag contained "@order" 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}}" " Raw string syn region rRawString matchgroup=rRawStrDelim start=/[rR]\z(['"]\)\z(-*\)(/ end=/)\z2\z1/ keepend syn region rRawString matchgroup=rRawStrDelim start=/[rR]\z(['"]\)\z(-*\){/ end=/}\z2\z1/ keepend syn region rRawString matchgroup=rRawStrDelim start=/[rR]\z(['"]\)\z(-*\)\[/ end=/\]\z2\z1/ keepend " 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 == "quarto" || &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 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 syn region rSection matchgroup=Title start=/^#.*[-=#]\{4,}/ end=/^#.*[-=#]\{4,}/ms=s-2,me=s-1 transparent contains=ALL 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 " Nvim-R: runtime R/functions.vim 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 match rType "\\" 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" || &filetype == "quarto" syn region rNameWSpace start="`" end="`" contains=rSpaceFun containedin=rmdrChunk else syn region rNameWSpace start="`" end="`" contains=rSpaceFun 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 rTodoParen Comment hi def link rTodoInfo SpecialComment hi def link rCommentTodo Todo hi def link rTodoKeyw 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 rSpaceFun 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 rRawString String hi def link rRawStrDelim Delimiter 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 rOR6Block 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