375 lines
14 KiB
VimL
375 lines
14 KiB
VimL
" Vim syntax file
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" Language: R (GNU S)
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" Maintainer: Jakson Aquino <jalvesaq@gmail.com>
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" Former Maintainers: Vaidotas Zemlys <zemlys@gmail.com>
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" Tom Payne <tom@tompayne.org>
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" Contributor: Johannes Ranke <jranke@uni-bremen.de>
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" Homepage: https://github.com/jalvesaq/R-Vim-runtime
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" Last Change: Sat Apr 08, 2017 07:01PM
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" Filenames: *.R *.r *.Rhistory *.Rt
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"
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" NOTE: The highlighting of R functions might be defined in
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" runtime files created by a filetype plugin, if installed.
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"
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" CONFIGURATION:
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" Syntax folding can be turned on by
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"
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" let r_syntax_folding = 1
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"
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" ROxygen highlighting can be turned off by
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"
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" let r_syntax_hl_roxygen = 0
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"
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" Some lines of code were borrowed from Zhuojun Chen.
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if exists("b:current_syntax")
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finish
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endif
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if has("patch-7.4.1142")
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syn iskeyword @,48-57,_,.
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else
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setlocal iskeyword=@,48-57,_,.
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endif
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" The variables g:r_hl_roxygen and g:r_syn_minlines were renamed on April 8, 2017.
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if exists("g:r_hl_roxygen")
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let g:r_syntax_hl_roxygen = g:r_hl_roxygen
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endif
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if exists("g:r_syn_minlines")
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let g:r_syntax_minlines = g:r_syn_minlines
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endif
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if exists("g:r_syntax_folding") && g:r_syntax_folding
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setlocal foldmethod=syntax
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endif
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if !exists("g:r_syntax_hl_roxygen")
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let g:r_syntax_hl_roxygen = 1
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endif
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syn case match
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" Comment
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syn match rCommentTodo contained "\(BUG\|FIXME\|NOTE\|TODO\):"
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syn match rComment contains=@Spell,rCommentTodo,rOBlock "#.*"
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" Roxygen
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if g:r_syntax_hl_roxygen
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" A roxygen block can start at the beginning of a file (first version) and
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" after a blank line (second version). It ends when a line that does not
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" contain a roxygen comment. In the following comments, any line containing
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" a roxygen comment marker (one or two hash signs # followed by a single
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" quote ' and preceded only by whitespace) is called a roxygen line. A
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" roxygen line containing only a roxygen comment marker, optionally followed
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" by whitespace is called an empty roxygen line.
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" First we match all roxygen blocks as containing only a title. In case an
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" empty roxygen line ending the title or a tag is found, this will be
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" overriden later by the definitions of rOBlock.
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syn match rOTitleBlock "\%^\(\s*#\{1,2}' .*\n\)\{1,}" contains=rOCommentKey,rOTitleTag
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syn match rOTitleBlock "^\s*\n\(\s*#\{1,2}' .*\n\)\{1,}" contains=rOCommentKey,rOTitleTag
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" When a roxygen block has a title and additional content, the title
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" consists of one or more roxygen lines (as little as possible are matched),
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" followed either by an empty roxygen line
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syn region rOBlock start="\%^\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*$" end="^\s*\(#\{1,2}'\)\@!" contains=rOTitle,rOTag,rOExamples,@Spell keepend fold
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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
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" or by a roxygen tag (we match everything starting with @ but not @@ which is used as escape sequence for a literal @).
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syn region rOBlock start="\%^\(\s*#\{1,2}' .*\n\)\{-}\s*#\{1,2}' @\(@\)\@!" end="^\s*\(#\{1,2}'\)\@!" contains=rOTitle,rOTag,rOExamples,@Spell keepend fold
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syn region rOBlock start="^\s*\n\(\s*#\{1,2}' .*\n\)\{-}\s*#\{1,2}' @\(@\)\@!" end="^\s*\(#\{1,2}'\)\@!" contains=rOTitle,rOTag,rOExamples,@Spell keepend fold
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" If a block contains an @rdname, @describeIn tag, it may have paragraph breaks, but does not have a title
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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
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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
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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
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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
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" A title as part of a block is always at the beginning of the block, i.e.
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" either at the start of a file or after a completely empty line.
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syn match rOTitle "\%^\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*$" contained contains=rOCommentKey,rOTitleTag
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syn match rOTitle "^\s*\n\(\s*#\{1,2}' .*\n\)\{-1,}\s*#\{1,2}'\s*$" contained contains=rOCommentKey,rOTitleTag
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syn match rOTitleTag contained "@title"
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syn match rOCommentKey "#\{1,2}'" contained
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syn region rOExamples start="^#\{1,2}' @examples.*"rs=e+1,hs=e+1 end="^\(#\{1,2}' @.*\)\@=" end="^\(#\{1,2}'\)\@!" contained contains=rOTag fold
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" rOTag list generated from the lists in
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" https://github.com/klutometis/roxygen/R/rd.R and
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" https://github.com/klutometis/roxygen/R/namespace.R
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" using s/^ \([A-Za-z0-9]*\) = .*/ syn match rOTag contained "@\1"/
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" Plus we need the @include tag
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" rd.R
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syn match rOTag contained "@aliases"
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syn match rOTag contained "@author"
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syn match rOTag contained "@backref"
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syn match rOTag contained "@concept"
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syn match rOTag contained "@describeIn"
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syn match rOTag contained "@description"
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syn match rOTag contained "@details"
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syn match rOTag contained "@docType"
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syn match rOTag contained "@encoding"
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syn match rOTag contained "@evalRd"
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syn match rOTag contained "@example"
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syn match rOTag contained "@examples"
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syn match rOTag contained "@family"
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syn match rOTag contained "@field"
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syn match rOTag contained "@format"
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syn match rOTag contained "@inherit"
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syn match rOTag contained "@inheritParams"
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syn match rOTag contained "@inheritDotParams"
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syn match rOTag contained "@inheritSection"
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syn match rOTag contained "@keywords"
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syn match rOTag contained "@method"
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syn match rOTag contained "@name"
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syn match rOTag contained "@md"
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syn match rOTag contained "@noMd"
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syn match rOTag contained "@noRd"
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syn match rOTag contained "@note"
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syn match rOTag contained "@param"
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syn match rOTag contained "@rdname"
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syn match rOTag contained "@rawRd"
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syn match rOTag contained "@references"
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syn match rOTag contained "@return"
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syn match rOTag contained "@section"
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syn match rOTag contained "@seealso"
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syn match rOTag contained "@slot"
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syn match rOTag contained "@source"
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syn match rOTag contained "@template"
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syn match rOTag contained "@templateVar"
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syn match rOTag contained "@title"
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syn match rOTag contained "@usage"
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" namespace.R
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syn match rOTag contained "@export"
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syn match rOTag contained "@exportClass"
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syn match rOTag contained "@exportMethod"
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syn match rOTag contained "@exportPattern"
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syn match rOTag contained "@import"
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syn match rOTag contained "@importClassesFrom"
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syn match rOTag contained "@importFrom"
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syn match rOTag contained "@importMethodsFrom"
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syn match rOTag contained "@rawNamespace"
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syn match rOTag contained "@S3method"
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syn match rOTag contained "@useDynLib"
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" other
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syn match rOTag contained "@include"
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endif
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if &filetype == "rhelp"
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" string enclosed in double quotes
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syn region rString contains=rSpecial,@Spell start=/"/ skip=/\\\\\|\\"/ end=/"/
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" string enclosed in single quotes
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syn region rString contains=rSpecial,@Spell start=/'/ skip=/\\\\\|\\'/ end=/'/
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else
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" string enclosed in double quotes
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syn region rString contains=rSpecial,rStrError,@Spell start=/"/ skip=/\\\\\|\\"/ end=/"/
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" string enclosed in single quotes
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syn region rString contains=rSpecial,rStrError,@Spell start=/'/ skip=/\\\\\|\\'/ end=/'/
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endif
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syn match rStrError display contained "\\."
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" New line, carriage return, tab, backspace, bell, feed, vertical tab, backslash
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syn match rSpecial display contained "\\\(n\|r\|t\|b\|a\|f\|v\|'\|\"\)\|\\\\"
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" Hexadecimal and Octal digits
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syn match rSpecial display contained "\\\(x\x\{1,2}\|[0-8]\{1,3}\)"
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" Unicode characters
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syn match rSpecial display contained "\\u\x\{1,4}"
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syn match rSpecial display contained "\\U\x\{1,8}"
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syn match rSpecial display contained "\\u{\x\{1,4}}"
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syn match rSpecial display contained "\\U{\x\{1,8}}"
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" Statement
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syn keyword rStatement break next return
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syn keyword rConditional if else
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syn keyword rRepeat for in repeat while
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" Constant (not really)
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syn keyword rConstant T F LETTERS letters month.abb month.name pi
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syn keyword rConstant R.version.string
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syn keyword rNumber NA_integer_ NA_real_ NA_complex_ NA_character_
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" Constants
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syn keyword rConstant NULL
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syn keyword rBoolean FALSE TRUE
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syn keyword rNumber NA Inf NaN
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" integer
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syn match rInteger "\<\d\+L"
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syn match rInteger "\<0x\([0-9]\|[a-f]\|[A-F]\)\+L"
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syn match rInteger "\<\d\+[Ee]+\=\d\+L"
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" number with no fractional part or exponent
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syn match rNumber "\<\d\+\>"
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" hexadecimal number
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syn match rNumber "\<0x\([0-9]\|[a-f]\|[A-F]\)\+"
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" floating point number with integer and fractional parts and optional exponent
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syn match rFloat "\<\d\+\.\d*\([Ee][-+]\=\d\+\)\="
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" floating point number with no integer part and optional exponent
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syn match rFloat "\<\.\d\+\([Ee][-+]\=\d\+\)\="
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" floating point number with no fractional part and optional exponent
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syn match rFloat "\<\d\+[Ee][-+]\=\d\+"
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" complex number
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syn match rComplex "\<\d\+i"
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syn match rComplex "\<\d\++\d\+i"
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syn match rComplex "\<0x\([0-9]\|[a-f]\|[A-F]\)\+i"
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syn match rComplex "\<\d\+\.\d*\([Ee][-+]\=\d\+\)\=i"
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syn match rComplex "\<\.\d\+\([Ee][-+]\=\d\+\)\=i"
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syn match rComplex "\<\d\+[Ee][-+]\=\d\+i"
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syn match rAssign '='
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syn match rOperator "&"
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syn match rOperator '-'
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syn match rOperator '\*'
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syn match rOperator '+'
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if &filetype != "rmd" && &filetype != "rrst"
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syn match rOperator "[|!<>^~/:]"
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else
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syn match rOperator "[|!<>^~`/:]"
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endif
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syn match rOperator "%\{2}\|%\S\{-}%"
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syn match rOperator '\([!><]\)\@<=='
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syn match rOperator '=='
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syn match rOpError '\*\{3}'
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syn match rOpError '//'
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syn match rOpError '&&&'
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syn match rOpError '|||'
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syn match rOpError '<<'
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syn match rOpError '>>'
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syn match rAssign "<\{1,2}-"
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syn match rAssign "->\{1,2}"
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" Special
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syn match rDelimiter "[,;:]"
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" Error
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if exists("g:r_syntax_folding")
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syn region rRegion matchgroup=Delimiter start=/(/ matchgroup=Delimiter end=/)/ transparent contains=ALLBUT,rError,rBraceError,rCurlyError fold
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syn region rRegion matchgroup=Delimiter start=/{/ matchgroup=Delimiter end=/}/ transparent contains=ALLBUT,rError,rBraceError,rParenError fold
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syn region rRegion matchgroup=Delimiter start=/\[/ matchgroup=Delimiter end=/]/ transparent contains=ALLBUT,rError,rCurlyError,rParenError fold
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else
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syn region rRegion matchgroup=Delimiter start=/(/ matchgroup=Delimiter end=/)/ transparent contains=ALLBUT,rError,rBraceError,rCurlyError
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syn region rRegion matchgroup=Delimiter start=/{/ matchgroup=Delimiter end=/}/ transparent contains=ALLBUT,rError,rBraceError,rParenError
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syn region rRegion matchgroup=Delimiter start=/\[/ matchgroup=Delimiter end=/]/ transparent contains=ALLBUT,rError,rCurlyError,rParenError
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endif
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syn match rError "[)\]}]"
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syn match rBraceError "[)}]" contained
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syn match rCurlyError "[)\]]" contained
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syn match rParenError "[\]}]" contained
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" Use Nvim-R to highlight functions dynamically if it is installed
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if !exists("g:r_syntax_fun_pattern")
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let s:ff = split(substitute(globpath(&rtp, "R/functions.vim"), "functions.vim", "", "g"), "\n")
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if len(s:ff) > 0
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let g:r_syntax_fun_pattern = 0
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else
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let g:r_syntax_fun_pattern = 1
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endif
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endif
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" Only use Nvim-R to highlight functions if they should not be highlighted
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" according to a generic pattern
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if g:r_syntax_fun_pattern == 1
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syn match rFunction '[0-9a-zA-Z_\.]\+\s*\ze('
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else
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if !exists("g:R_hi_fun")
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let g:R_hi_fun = 1
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endif
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if g:R_hi_fun
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" Nvim-R:
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runtime R/functions.vim
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endif
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endif
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syn match rDollar display contained "\$"
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syn match rDollar display contained "@"
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" List elements will not be highlighted as functions:
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syn match rLstElmt "\$[a-zA-Z0-9\\._]*" contains=rDollar
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syn match rLstElmt "@[a-zA-Z0-9\\._]*" contains=rDollar
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" Functions that may add new objects
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syn keyword rPreProc library require attach detach source
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if &filetype == "rhelp"
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syn match rHelpIdent '\\method'
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syn match rHelpIdent '\\S4method'
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endif
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" Type
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syn keyword rType array category character complex double function integer list logical matrix numeric vector data.frame
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" Name of object with spaces
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if &filetype != "rmd" && &filetype != "rrst"
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syn region rNameWSpace start="`" end="`"
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endif
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if &filetype == "rhelp"
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syn match rhPreProc "^#ifdef.*"
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syn match rhPreProc "^#endif.*"
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syn match rhSection "\\dontrun\>"
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endif
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if exists("r_syntax_minlines")
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exe "syn sync minlines=" . r_syntax_minlines
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else
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syn sync minlines=40
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endif
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" Define the default highlighting.
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hi def link rAssign Statement
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hi def link rBoolean Boolean
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hi def link rBraceError Error
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hi def link rComment Comment
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hi def link rCommentTodo Todo
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hi def link rComplex Number
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hi def link rConditional Conditional
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hi def link rConstant Constant
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hi def link rCurlyError Error
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hi def link rDelimiter Delimiter
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hi def link rDollar SpecialChar
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hi def link rError Error
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hi def link rFloat Float
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hi def link rFunction Function
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hi def link rHelpIdent Identifier
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hi def link rhPreProc PreProc
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hi def link rhSection PreCondit
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hi def link rInteger Number
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hi def link rLstElmt Normal
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hi def link rNameWSpace Normal
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hi def link rNumber Number
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hi def link rOperator Operator
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hi def link rOpError Error
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hi def link rParenError Error
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hi def link rPreProc PreProc
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hi def link rRepeat Repeat
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hi def link rSpecial SpecialChar
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hi def link rStatement Statement
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hi def link rString String
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hi def link rStrError Error
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hi def link rType Type
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if g:r_syntax_hl_roxygen
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hi def link rOTitleTag Operator
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hi def link rOTag Operator
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hi def link rOTitleBlock Title
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hi def link rOBlock Comment
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hi def link rOBlockNoTitle Comment
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hi def link rOTitle Title
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hi def link rOCommentKey Comment
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hi def link rOExamples SpecialComment
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endif
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let b:current_syntax="r"
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" vim: ts=8 sw=2
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