if exists('g:polyglot_disabled') && index(g:polyglot_disabled, 'reason') != -1 finish endif " Vim syntax file " Language: Reason (Forked from Rust) " Maintainer: (Jordan - for Reason changes) Patrick Walton " Maintainer: Ben Blum " Maintainer: Chris Morgan " Last Change: January 29, 2015 " Portions Copyright (c) 2015-present, Facebook, Inc. All rights reserved. if version < 600 syntax clear elseif exists("b:current_syntax") finish endif " Syntax definitions {{{1 " Basic keywords {{{2 syn keyword rustConditional switch match if else for in when fun syn keyword rustOperator as syn match rustAssert "\[^\.]"me=e-1 " Polymorphic variants syn match rustEnumVariant "`\w\(\w\|'\)*\>" syn match rustModPath "\<\u\w*\." syn region rustBoxPlacement matchgroup=rustBoxPlacementParens start="(" end=")" contains=TOP contained " Ideally we'd have syntax rules set up to match arbitrary expressions. Since " we don't, we'll just define temporary contained rules to handle balancing " delimiters. syn region rustBoxPlacementBalance start="(" end=")" containedin=rustBoxPlacement transparent syn region rustBoxPlacementBalance start="\[" end="\]" containedin=rustBoxPlacement transparent " {} are handled by rustFoldBraces syn region rustMacroRepeat matchgroup=rustMacroRepeatDelimiters start="$(" end=")" contains=TOP nextgroup=rustMacroRepeatCount syn match rustMacroRepeatCount ".\?[*+]" contained syn match rustMacroVariable "$\w\+" " Reserved (but not yet used) keywords {{{2 syn keyword rustReservedKeyword alignof become do offsetof priv pure sizeof typeof unsized yield abstract virtual final override macro " Built-in types {{{2 syn keyword rustType int float option list array unit ref bool string " Things from the libstd v1 prelude (src/libstd/prelude/v1.rs) {{{2 " This section is just straight transformation of the contents of the prelude, " to make it easy to update. " Reexported core operators {{{3 syn keyword rustTrait Copy Send Sized Sync syn keyword rustTrait Drop Fn FnMut FnOnce " Reexported functions {{{3 " There’s no point in highlighting these; when one writes drop( or drop::< it " gets the same highlighting anyway, and if someone writes `let drop = …;` we " don’t really want *that* drop to be highlighted. "syn keyword rustFunction drop " Reexported types and traits {{{3 syn keyword rustTrait Box syn keyword rustTrait ToOwned syn keyword rustTrait Clone syn keyword rustTrait PartialEq PartialOrd Eq Ord syn keyword rustTrait AsRef AsMut Into From syn keyword rustTrait Default syn keyword rustTrait Iterator Extend IntoIterator syn keyword rustTrait DoubleEndedIterator ExactSizeIterator syn keyword rustEnum Option syn keyword rustEnumVariant Some None syn keyword rustEnum Result syn keyword rustEnumVariant Ok Err syn keyword rustTrait SliceConcatExt syn keyword rustTrait String ToString syn keyword rustTrait Vec " Other syntax {{{2 syn keyword rustSelf self syn keyword rustBoolean true false " This is merely a convention; note also the use of [A-Z], restricting it to " latin identifiers rather than the full Unicode uppercase. I have not used " [:upper:] as it depends upon 'noignorecase' "syn match rustCapsIdent display "[A-Z]\w\(\w\)*" syn match rustOperator display "\%(+\|-\|/\|*\|=\|\^\|&\||\|!\|>\|<\|%\)=\?" " This one isn't *quite* right, as we could have binary-& with a reference " This isn't actually correct; a closure with no arguments can be `|| { }`. " Last, because the & in && isn't a sigil syn match rustOperator display "&&\|||" " This is rustArrowCharacter rather than rustArrow for the sake of matchparen, " so it skips the ->; see http://stackoverflow.com/a/30309949 for details. syn match rustArrowCharacter display "=>" syn match rustEscapeError display contained /\\./ syn match rustEscape display contained /\\\([nrt0\\'"]\|x\x\{2}\)/ syn match rustEscapeUnicode display contained /\\\(u\x\{4}\|U\x\{8}\)/ syn match rustEscapeUnicode display contained /\\u{\x\{1,6}}/ syn match rustStringContinuation display contained /\\\n\s*/ syn region rustString start='{j|' end='|j}' contains=rustMacroVariable,@Spell syn region rustString start=+b"+ skip=+\\\\\|\\"+ end=+"+ contains=rustEscape,rustEscapeError,rustStringContinuation syn region rustString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=rustEscape,rustEscapeUnicode,rustEscapeError,rustStringContinuation,@Spell syn region rustString start='b\?r\z(#*\)"' end='"\z1' contains=@Spell syn region rustAttribute start="#!\?\[" end="\]" contains=rustString,rustDerive syn region rustDerive start="derive(" end=")" contained contains=rustDeriveTrait " This list comes from src/libsyntax/ext/deriving/mod.rs " Some are deprecated (Encodable, Decodable) or to be removed after a new snapshot (Show). syn keyword rustDeriveTrait contained Clone Hash RustcEncodable RustcDecodable Encodable Decodable PartialEq Eq PartialOrd Ord Rand Show Debug Default FromPrimitive Send Sync Copy " Number literals syn match rustDecNumber display "\<[0-9][0-9_]*\%([iu]\%(size\|8\|16\|32\|64\)\)\=" syn match rustHexNumber display "\<0x[a-fA-F0-9_]\+\%([iu]\%(size\|8\|16\|32\|64\)\)\=" syn match rustOctNumber display "\<0o[0-7_]\+\%([iu]\%(size\|8\|16\|32\|64\)\)\=" syn match rustBinNumber display "\<0b[01_]\+\%([iu]\%(size\|8\|16\|32\|64\)\)\=" " Special case for numbers of the form "1." which are float literals, unless followed by " an identifier, which makes them integer literals with a method call or field access, " or by another ".", which makes them integer literals followed by the ".." token. " (This must go first so the others take precedence.) syn match rustFloat display "\<[0-9][0-9_]*\.\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\|\.\)\@!" " To mark a number as a normal float, it must have at least one of the three things integral values don't have: " a decimal point and more numbers; an exponent; and a type suffix. syn match rustFloat display "\<[0-9][0-9_]*\%(\.[0-9][0-9_]*\)\%([eE][+-]\=[0-9_]\+\)\=\(f32\|f64\)\=" syn match rustFloat display "\<[0-9][0-9_]*\%(\.[0-9][0-9_]*\)\=\%([eE][+-]\=[0-9_]\+\)\(f32\|f64\)\=" syn match rustFloat display "\<[0-9][0-9_]*\%(\.[0-9][0-9_]*\)\=\%([eE][+-]\=[0-9_]\+\)\=\(f32\|f64\)" " For the benefit of delimitMate syn match rustCharacterInvalid display contained /b\?'\zs[\n\r\t']\ze'/ " The groups negated here add up to 0-255 but nothing else (they do not seem to go beyond ASCII). syn match rustCharacterInvalidUnicode display contained /b'\zs[^[:cntrl:][:graph:][:alnum:][:space:]]\ze'/ syn match rustCharacter /b'\([^\\]\|\\\(.\|x\x\{2}\)\)'/ contains=rustEscape,rustEscapeError,rustCharacterInvalid,rustCharacterInvalidUnicode syn match rustCharacter /'\([^\\]\|\\\(.\|x\x\{2}\|u\x\{4}\|U\x\{8}\|u{\x\{1,6}}\)\)'/ contains=rustEscape,rustEscapeUnicode,rustEscapeError,rustCharacterInvalid syn match rustShebang /\%^#![^[].*/ syn region rustCommentLine start="//" end="$" contains=rustTodo,@Spell syn region rustCommentLineDoc start="//\%(//\@!\|!\)" end="$" contains=rustTodo,@Spell syn region rustCommentBlock matchgroup=rustCommentBlock start="/\*\%(!\|\*[*/]\@!\)\@!" end="\*/" contains=rustTodo,rustCommentBlockNest,@Spell syn region rustCommentBlockDoc matchgroup=rustCommentBlockDoc start="/\*\%(!\|\*[*/]\@!\)" end="\*/" contains=rustTodo,rustCommentBlockDocNest,@Spell syn region rustCommentBlockNest matchgroup=rustCommentBlock start="/\*" end="\*/" contains=rustTodo,rustCommentBlockNest,@Spell contained transparent syn region rustCommentBlockDocNest matchgroup=rustCommentBlockDoc start="/\*" end="\*/" contains=rustTodo,rustCommentBlockDocNest,@Spell contained transparent " FIXME: this is a really ugly and not fully correct implementation. Most " importantly, a case like ``/* */*`` should have the final ``*`` not being in " a comment, but in practice at present it leaves comments open two levels " deep. But as long as you stay away from that particular case, I *believe* " the highlighting is correct. Due to the way Vim's syntax engine works " (greedy for start matches, unlike Rust's tokeniser which is searching for " the earliest-starting match, start or end), I believe this cannot be solved. " Oh you who would fix it, don't bother with things like duplicating the Block " rules and putting ``\*\@