3 " Maintainer: Jakson Aquino <jalvesaq@gmail.com>
4 " Former Maintainers: Vaidotas Zemlys <zemlys@gmail.com>
5 " Tom Payne <tom@tompayne.org>
6 " Last Change: Sun May 19, 2013 05:59PM
7 " Filenames: *.R *.r *.Rhistory *.Rt
9 " NOTE: The highlighting of R functions is defined in the
10 " r-plugin/functions.vim, which is part of vim-r-plugin2:
11 " http://www.vim.org/scripts/script.php?script_id=2628
14 " syntax folding can be turned on by
16 " let r_syntax_folding = 1
18 " Some lines of code were borrowed from Zhuojun Chen.
20 if exists("b:current_syntax")
24 setlocal iskeyword=@,48-57,_,.
26 if exists("g:r_syntax_folding")
27 setlocal foldmethod=syntax
33 syn match rComment contains=@Spell "#.*"
36 syn match rOKeyword contained "@\(param\|return\|name\|rdname\|examples\|include\|docType\)"
37 syn match rOKeyword contained "@\(S3method\|TODO\|aliases\|alias\|assignee\|author\|callGraphDepth\|callGraph\)"
38 syn match rOKeyword contained "@\(callGraphPrimitives\|concept\|exportClass\|exportMethod\|exportPattern\|export\|formals\)"
39 syn match rOKeyword contained "@\(format\|importClassesFrom\|importFrom\|importMethodsFrom\|import\|keywords\)"
40 syn match rOKeyword contained "@\(method\|nord\|note\|references\|seealso\|setClass\|slot\|source\|title\|usage\)"
41 syn match rOComment contains=@Spell,rOKeyword "#'.*"
44 if &filetype == "rhelp"
45 " string enclosed in double quotes
46 syn region rString contains=rSpecial,@Spell start=/"/ skip=/\\\\\|\\"/ end=/"/
47 " string enclosed in single quotes
48 syn region rString contains=rSpecial,@Spell start=/'/ skip=/\\\\\|\\'/ end=/'/
50 " string enclosed in double quotes
51 syn region rString contains=rSpecial,rStrError,@Spell start=/"/ skip=/\\\\\|\\"/ end=/"/
52 " string enclosed in single quotes
53 syn region rString contains=rSpecial,rStrError,@Spell start=/'/ skip=/\\\\\|\\'/ end=/'/
56 syn match rStrError display contained "\\."
59 " New line, carriage return, tab, backspace, bell, feed, vertical tab, backslash
60 syn match rSpecial display contained "\\\(n\|r\|t\|b\|a\|f\|v\|'\|\"\)\|\\\\"
62 " Hexadecimal and Octal digits
63 syn match rSpecial display contained "\\\(x\x\{1,2}\|[0-8]\{1,3}\)"
66 syn match rSpecial display contained "\\u\x\{1,4}"
67 syn match rSpecial display contained "\\U\x\{1,8}"
68 syn match rSpecial display contained "\\u{\x\{1,4}}"
69 syn match rSpecial display contained "\\U{\x\{1,8}}"
72 syn keyword rStatement break next return
73 syn keyword rConditional if else
74 syn keyword rRepeat for in repeat while
76 " Constant (not really)
77 syn keyword rConstant T F LETTERS letters month.abb month.name pi
78 syn keyword rConstant R.version.string
80 syn keyword rNumber NA_integer_ NA_real_ NA_complex_ NA_character_
83 syn keyword rConstant NULL
84 syn keyword rBoolean FALSE TRUE
85 syn keyword rNumber NA Inf NaN
88 syn match rInteger "\<\d\+L"
89 syn match rInteger "\<0x\([0-9]\|[a-f]\|[A-F]\)\+L"
90 syn match rInteger "\<\d\+[Ee]+\=\d\+L"
92 " number with no fractional part or exponent
93 syn match rNumber "\<\d\+\>"
95 syn match rNumber "\<0x\([0-9]\|[a-f]\|[A-F]\)\+"
97 " floating point number with integer and fractional parts and optional exponent
98 syn match rFloat "\<\d\+\.\d*\([Ee][-+]\=\d\+\)\="
99 " floating point number with no integer part and optional exponent
100 syn match rFloat "\<\.\d\+\([Ee][-+]\=\d\+\)\="
101 " floating point number with no fractional part and optional exponent
102 syn match rFloat "\<\d\+[Ee][-+]\=\d\+"
105 syn match rComplex "\<\d\+i"
106 syn match rComplex "\<\d\++\d\+i"
107 syn match rComplex "\<0x\([0-9]\|[a-f]\|[A-F]\)\+i"
108 syn match rComplex "\<\d\+\.\d*\([Ee][-+]\=\d\+\)\=i"
109 syn match rComplex "\<\.\d\+\([Ee][-+]\=\d\+\)\=i"
110 syn match rComplex "\<\d\+[Ee][-+]\=\d\+i"
112 syn match rOperator "&"
113 syn match rOperator '-'
114 syn match rOperator '\*'
115 syn match rOperator '+'
116 syn match rOperator '='
117 if &filetype != "rmd" && &filetype != "rrst"
118 syn match rOperator "[|!<>^~/:]"
120 syn match rOperator "[|!<>^~`/:]"
122 syn match rOperator "%\{2}\|%\S*%"
123 syn match rOpError '\*\{3}'
124 syn match rOpError '//'
125 syn match rOpError '&&&'
126 syn match rOpError '|||'
127 syn match rOpError '<<'
128 syn match rOpError '>>'
130 syn match rArrow "<\{1,2}-"
131 syn match rArrow "->\{1,2}"
134 syn match rDelimiter "[,;:]"
137 if exists("g:r_syntax_folding")
138 syn region rRegion matchgroup=Delimiter start=/(/ matchgroup=Delimiter end=/)/ transparent contains=ALLBUT,rError,rBraceError,rCurlyError fold
139 syn region rRegion matchgroup=Delimiter start=/{/ matchgroup=Delimiter end=/}/ transparent contains=ALLBUT,rError,rBraceError,rParenError fold
140 syn region rRegion matchgroup=Delimiter start=/\[/ matchgroup=Delimiter end=/]/ transparent contains=ALLBUT,rError,rCurlyError,rParenError fold
142 syn region rRegion matchgroup=Delimiter start=/(/ matchgroup=Delimiter end=/)/ transparent contains=ALLBUT,rError,rBraceError,rCurlyError
143 syn region rRegion matchgroup=Delimiter start=/{/ matchgroup=Delimiter end=/}/ transparent contains=ALLBUT,rError,rBraceError,rParenError
144 syn region rRegion matchgroup=Delimiter start=/\[/ matchgroup=Delimiter end=/]/ transparent contains=ALLBUT,rError,rCurlyError,rParenError
147 syn match rError "[)\]}]"
148 syn match rBraceError "[)}]" contained
149 syn match rCurlyError "[)\]]" contained
150 syn match rParenError "[\]}]" contained
152 " Source list of R functions. The list is produced by the Vim-R-plugin
153 " http://www.vim.org/scripts/script.php?script_id=2628
154 runtime r-plugin/functions.vim
156 syn match rDollar display contained "\$"
157 syn match rDollar display contained "@"
159 " List elements will not be highlighted as functions:
160 syn match rLstElmt "\$[a-zA-Z0-9\\._]*" contains=rDollar
161 syn match rLstElmt "@[a-zA-Z0-9\\._]*" contains=rDollar
163 " Functions that may add new objects
164 syn keyword rPreProc library require attach detach source
166 if &filetype == "rhelp"
167 syn match rHelpIdent '\\method'
168 syn match rHelpIdent '\\S4method'
172 syn keyword rType array category character complex double function integer list logical matrix numeric vector data.frame
174 " Name of object with spaces
175 if &filetype != "rmd" && &filetype != "rrst"
176 syn region rNameWSpace start="`" end="`"
179 if &filetype == "rhelp"
180 syn match rhPreProc "^#ifdef.*"
181 syn match rhPreProc "^#endif.*"
182 syn match rhSection "\\dontrun\>"
185 " Define the default highlighting.
186 hi def link rArrow Statement
187 hi def link rBoolean Boolean
188 hi def link rBraceError Error
189 hi def link rComment Comment
190 hi def link rOComment Comment
191 hi def link rComplex Number
192 hi def link rConditional Conditional
193 hi def link rConstant Constant
194 hi def link rCurlyError Error
195 hi def link rDelimiter Delimiter
196 hi def link rDollar SpecialChar
197 hi def link rError Error
198 hi def link rFloat Float
199 hi def link rFunction Function
200 hi def link rHelpIdent Identifier
201 hi def link rhPreProc PreProc
202 hi def link rhSection PreCondit
203 hi def link rInteger Number
204 hi def link rLstElmt Normal
205 hi def link rNameWSpace Normal
206 hi def link rNumber Number
207 hi def link rOperator Operator
208 hi def link rOpError Error
209 hi def link rParenError Error
210 hi def link rPreProc PreProc
211 hi def link rRepeat Repeat
212 hi def link rSpecial SpecialChar
213 hi def link rStatement Statement
214 hi def link rString String
215 hi def link rStrError Error
216 hi def link rType Type
217 hi def link rOKeyword Title
219 let b:current_syntax="r"