3 " Maintainer: Patrick Walton <pcwalton@mozilla.com>
4 " Maintainer: Ben Blum <bblum@cs.cmu.edu>
5 " Maintainer: Chris Morgan <me@chrismorgan.info>
6 " Last Change: 2014 Feb 27
10 elseif exists("b:current_syntax")
14 " Syntax definitions {{{1
16 syn keyword rustConditional match if else
17 syn keyword rustOperator as
19 syn match rustAssert "\<assert\(\w\)*!" contained
20 syn match rustFail "\<fail\(\w\)*!" contained
21 syn keyword rustKeyword break
22 syn keyword rustKeyword box nextgroup=rustBoxPlacement skipwhite skipempty
23 syn keyword rustKeyword continue
24 syn keyword rustKeyword extern nextgroup=rustExternCrate,rustObsoleteExternMod skipwhite skipempty
25 syn keyword rustKeyword fn nextgroup=rustFuncName skipwhite skipempty
26 syn keyword rustKeyword for in if impl let
27 syn keyword rustKeyword loop once proc pub
28 syn keyword rustKeyword return super
29 syn keyword rustKeyword unsafe virtual while
30 syn keyword rustKeyword use nextgroup=rustModPath skipwhite skipempty
31 " FIXME: Scoped impl's name is also fallen in this category
32 syn keyword rustKeyword mod trait struct enum type nextgroup=rustIdentifier skipwhite skipempty
33 syn keyword rustStorage mut ref static const
35 syn keyword rustInvalidBareKeyword crate
37 syn keyword rustExternCrate crate contained nextgroup=rustIdentifier skipwhite skipempty
38 syn keyword rustObsoleteExternMod mod contained nextgroup=rustIdentifier skipwhite skipempty
40 syn match rustIdentifier contains=rustIdentifierPrime "\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\)\%([^[:cntrl:][:punct:][:space:]]\|_\)*" display contained
41 syn match rustFuncName "\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\)\%([^[:cntrl:][:punct:][:space:]]\|_\)*" display contained
43 syn region rustBoxPlacement matchgroup=rustBoxPlacementParens start="(" end=")" contains=TOP contained
44 syn keyword rustBoxPlacementExpr GC containedin=rustBoxPlacement
45 " Ideally we'd have syntax rules set up to match arbitrary expressions. Since
46 " we don't, we'll just define temporary contained rules to handle balancing
48 syn region rustBoxPlacementBalance start="(" end=")" containedin=rustBoxPlacement transparent
49 syn region rustBoxPlacementBalance start="\[" end="\]" containedin=rustBoxPlacement transparent
50 " {} are handled by rustFoldBraces
52 " Reserved (but not yet used) keywords {{{2
53 syn keyword rustReservedKeyword alignof be do offsetof priv pure sizeof typeof unsized yield
56 syn keyword rustType int uint float char bool u8 u16 u32 u64 f32
57 syn keyword rustType f64 i8 i16 i32 i64 str Self
59 " Things from the prelude (src/libstd/prelude.rs) {{{2
60 " This section is just straight transformation of the contents of the prelude,
61 " to make it easy to update.
64 syn keyword rustTrait Copy Send Sized Share
65 syn keyword rustTrait Add Sub Mul Div Rem Neg Not
66 syn keyword rustTrait BitAnd BitOr BitXor
67 syn keyword rustTrait Drop Deref DerefMut
68 syn keyword rustTrait Shl Shr Index
69 syn keyword rustEnum Option
70 syn keyword rustEnumVariant Some None
71 syn keyword rustEnum Result
72 syn keyword rustEnumVariant Ok Err
75 "syn keyword rustFunction from_str
76 "syn keyword rustFunction range
77 "syn keyword rustFunction drop
79 " Types and traits {{{3
80 syn keyword rustTrait Ascii AsciiCast OwnedAsciiCast AsciiStr IntoBytes
81 syn keyword rustTrait ToCStr
82 syn keyword rustTrait Char
83 syn keyword rustTrait Clone
84 syn keyword rustTrait Eq Ord TotalEq TotalOrd Ordering Equiv
85 syn keyword rustEnumVariant Less Equal Greater
86 syn keyword rustTrait Container Mutable Map MutableMap Set MutableSet
87 syn keyword rustTrait FromIterator Extendable
88 syn keyword rustTrait Iterator DoubleEndedIterator RandomAccessIterator CloneableIterator
89 syn keyword rustTrait OrdIterator MutableDoubleEndedIterator ExactSize
90 syn keyword rustTrait Num NumCast CheckedAdd CheckedSub CheckedMul
91 syn keyword rustTrait Signed Unsigned
92 syn keyword rustTrait Primitive Int Float FloatMath ToPrimitive FromPrimitive
93 "syn keyword rustTrait Expect
94 syn keyword rustTrait Box
95 syn keyword rustTrait GenericPath Path PosixPath WindowsPath
96 syn keyword rustTrait RawPtr
97 syn keyword rustTrait Buffer Writer Reader Seek
98 syn keyword rustTrait Str StrVector StrSlice OwnedStr IntoMaybeOwned
99 syn keyword rustTrait StrAllocating
100 syn keyword rustTrait ToStr IntoStr
101 syn keyword rustTrait Tuple1 Tuple2 Tuple3 Tuple4
102 syn keyword rustTrait Tuple5 Tuple6 Tuple7 Tuple8
103 syn keyword rustTrait Tuple9 Tuple10 Tuple11 Tuple12
104 syn keyword rustTrait CloneableVector ImmutableCloneableVector MutableCloneableVector
105 syn keyword rustTrait ImmutableVector MutableVector
106 syn keyword rustTrait ImmutableEqVector ImmutableTotalOrdVector MutableTotalOrdVector
107 syn keyword rustTrait Vector VectorVector OwnedVector MutableVectorAllocating
108 syn keyword rustTrait String
109 syn keyword rustTrait Vec
111 "syn keyword rustFunction sync_channel channel
112 syn keyword rustTrait SyncSender Sender Receiver
113 "syn keyword rustFunction spawn
115 "syn keyword rustConstant GC
117 syn keyword rustSelf self
118 syn keyword rustBoolean true false
122 " If foo::bar changes to foo.bar, change this ("::" to "\.").
123 " If foo::bar changes to Foo::bar, change this (first "\w" to "\u").
124 syn match rustModPath "\w\(\w\)*::[^<]"he=e-3,me=e-3
125 syn match rustModPath "\w\(\w\)*" contained " only for 'use path;'
126 syn match rustModPathSep "::"
128 syn match rustFuncCall "\w\(\w\)*("he=e-1,me=e-1
129 syn match rustFuncCall "\w\(\w\)*::<"he=e-3,me=e-3 " foo::<T>();
131 " This is merely a convention; note also the use of [A-Z], restricting it to
132 " latin identifiers rather than the full Unicode uppercase. I have not used
133 " [:upper:] as it depends upon 'noignorecase'
134 "syn match rustCapsIdent display "[A-Z]\w\(\w\)*"
136 syn match rustOperator display "\%(+\|-\|/\|*\|=\|\^\|&\||\|!\|>\|<\|%\)=\?"
137 " This one isn't *quite* right, as we could have binary-& with a reference
138 syn match rustSigil display /&\s\+[&~@*][^)= \t\r\n]/he=e-1,me=e-1
139 syn match rustSigil display /[&~@*][^)= \t\r\n]/he=e-1,me=e-1
140 " This isn't actually correct; a closure with no arguments can be `|| { }`.
141 " Last, because the & in && isn't a sigil
142 syn match rustOperator display "&&\|||"
144 syn match rustMacro '\w\(\w\)*!' contains=rustAssert,rustFail
145 syn match rustMacro '#\w\(\w\)*' contains=rustAssert,rustFail
147 syn match rustSpecialError display contained /\\./
148 syn match rustSpecial display contained /\\\([nrt0\\'"]\|x\x\{2}\|u\x\{4}\|U\x\{8}\)/
149 syn match rustStringContinuation display contained /\\\n\s*/
150 syn region rustString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=rustSpecial,rustSpecialError,rustStringContinuation,@Spell
151 syn region rustString start='r\z(#*\)"' end='"\z1' contains=@Spell
153 syn region rustAttribute start="#!\?\[" end="\]" contains=rustString,rustDeriving
154 syn region rustDeriving start="deriving(" end=")" contained contains=rustTrait
157 syn match rustDecNumber display "\<[0-9][0-9_]*\%([iu]\%(8\|16\|32\|64\)\=\)\="
158 syn match rustHexNumber display "\<0x[a-fA-F0-9_]\+\%([iu]\%(8\|16\|32\|64\)\=\)\="
159 syn match rustOctNumber display "\<0o[0-7_]\+\%([iu]\%(8\|16\|32\|64\)\=\)\="
160 syn match rustBinNumber display "\<0b[01_]\+\%([iu]\%(8\|16\|32\|64\)\=\)\="
162 " Special case for numbers of the form "1." which are float literals, unless followed by
163 " an identifier, which makes them integer literals with a method call or field access.
164 " (This must go first so the others take precedence.)
165 syn match rustFloat display "\<[0-9][0-9_]*\.\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\)\@!"
166 " To mark a number as a normal float, it must have at least one of the three things integral values don't have:
167 " a decimal point and more numbers; an exponent; and a type suffix.
168 syn match rustFloat display "\<[0-9][0-9_]*\%(\.[0-9][0-9_]*\)\%([eE][+-]\=[0-9_]\+\)\=\(f32\|f64\)\="
169 syn match rustFloat display "\<[0-9][0-9_]*\%(\.[0-9][0-9_]*\)\=\%([eE][+-]\=[0-9_]\+\)\(f32\|f64\)\="
170 syn match rustFloat display "\<[0-9][0-9_]*\%(\.[0-9][0-9_]*\)\=\%([eE][+-]\=[0-9_]\+\)\=\(f32\|f64\)"
172 " For the benefit of delimitMate
173 syn region rustLifetimeCandidate display start=/&'\%(\([^'\\]\|\\\(['nrt0\\\"]\|x\x\{2}\|u\x\{4}\|U\x\{8}\)\)'\)\@!/ end=/[[:cntrl:][:space:][:punct:]]\@=\|$/ contains=rustSigil,rustLifetime
174 syn region rustGenericRegion display start=/<\%('\|[^[cntrl:][:space:][:punct:]]\)\@=')\S\@=/ end=/>/ contains=rustGenericLifetimeCandidate
175 syn region rustGenericLifetimeCandidate display start=/\%(<\|,\s*\)\@<='/ end=/[[:cntrl:][:space:][:punct:]]\@=\|$/ contains=rustSigil,rustLifetime
177 "rustLifetime must appear before rustCharacter, or chars will get the lifetime highlighting
178 syn match rustLifetime display "\'\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\)\%([^[:cntrl:][:punct:][:space:]]\|_\)*"
179 syn match rustCharacter /'\([^'\\]\|\\\(.\|x\x\{2}\|u\x\{4}\|U\x\{8}\)\)'/ contains=rustSpecial,rustSpecialError
181 syn region rustCommentLine start="//" end="$" contains=rustTodo,@Spell
182 syn region rustCommentLineDoc start="//\%(//\@!\|!\)" end="$" contains=rustTodo,@Spell
183 syn region rustCommentBlock matchgroup=rustCommentBlock start="/\*\%(!\|\*[*/]\@!\)\@!" end="\*/" contains=rustTodo,rustCommentBlockNest,@Spell
184 syn region rustCommentBlockDoc matchgroup=rustCommentBlockDoc start="/\*\%(!\|\*[*/]\@!\)" end="\*/" contains=rustTodo,rustCommentBlockDocNest,@Spell
185 syn region rustCommentBlockNest matchgroup=rustCommentBlock start="/\*" end="\*/" contains=rustTodo,rustCommentBlockNest,@Spell contained transparent
186 syn region rustCommentBlockDocNest matchgroup=rustCommentBlockDoc start="/\*" end="\*/" contains=rustTodo,rustCommentBlockDocNest,@Spell contained transparent
187 " FIXME: this is a really ugly and not fully correct implementation. Most
188 " importantly, a case like ``/* */*`` should have the final ``*`` not being in
189 " a comment, but in practice at present it leaves comments open two levels
190 " deep. But as long as you stay away from that particular case, I *believe*
191 " the highlighting is correct. Due to the way Vim's syntax engine works
192 " (greedy for start matches, unlike Rust's tokeniser which is searching for
193 " the earliest-starting match, start or end), I believe this cannot be solved.
194 " Oh you who would fix it, don't bother with things like duplicating the Block
195 " rules and putting ``\*\@<!`` at the start of them; it makes it worse, as
196 " then you must deal with cases like ``/*/**/*/``. And don't try making it
197 " worse with ``\%(/\@<!\*\)\@<!``, either...
199 syn keyword rustTodo contained TODO FIXME XXX NB NOTE
202 " Trivial folding rules to begin with.
203 " TODO: use the AST to make really good folding
204 syn region rustFoldBraces start="{" end="}" transparent fold
205 " If you wish to enable this, setlocal foldmethod=syntax
206 " It's not enabled by default as it would drive some people mad.
208 " Default highlighting {{{1
209 hi def link rustDecNumber rustNumber
210 hi def link rustHexNumber rustNumber
211 hi def link rustOctNumber rustNumber
212 hi def link rustBinNumber rustNumber
213 hi def link rustIdentifierPrime rustIdentifier
214 hi def link rustTrait rustType
216 hi def link rustSigil StorageClass
217 hi def link rustSpecial Special
218 hi def link rustSpecialError Error
219 hi def link rustStringContinuation Special
220 hi def link rustString String
221 hi def link rustCharacter Character
222 hi def link rustNumber Number
223 hi def link rustBoolean Boolean
224 hi def link rustEnum rustType
225 hi def link rustEnumVariant rustConstant
226 hi def link rustConstant Constant
227 hi def link rustSelf Constant
228 hi def link rustFloat Float
229 hi def link rustOperator Operator
230 hi def link rustKeyword Keyword
231 hi def link rustReservedKeyword Error
232 hi def link rustConditional Conditional
233 hi def link rustIdentifier Identifier
234 hi def link rustCapsIdent rustIdentifier
235 hi def link rustModPath Include
236 hi def link rustModPathSep Delimiter
237 hi def link rustFunction Function
238 hi def link rustFuncName Function
239 hi def link rustFuncCall Function
240 hi def link rustCommentLine Comment
241 hi def link rustCommentLineDoc SpecialComment
242 hi def link rustCommentBlock rustCommentLine
243 hi def link rustCommentBlockDoc rustCommentLineDoc
244 hi def link rustAssert PreCondit
245 hi def link rustFail PreCondit
246 hi def link rustMacro Macro
247 hi def link rustType Type
248 hi def link rustTodo Todo
249 hi def link rustAttribute PreProc
250 hi def link rustDeriving PreProc
251 hi def link rustStorage StorageClass
252 hi def link rustObsoleteStorage Error
253 hi def link rustLifetime Special
254 hi def link rustInvalidBareKeyword Error
255 hi def link rustExternCrate rustKeyword
256 hi def link rustObsoleteExternMod Error
257 hi def link rustBoxPlacementParens Delimiter
258 hi def link rustBoxPlacementExpr rustKeyword
261 " hi rustAttribute ctermfg=cyan
262 " hi rustDeriving ctermfg=cyan
263 " hi rustAssert ctermfg=yellow
264 " hi rustFail ctermfg=red
265 " hi rustMacro ctermfg=magenta
267 syn sync minlines=200
268 syn sync maxlines=500
270 let b:current_syntax = "rust"