Update

syntax/scala.vim

@@ -12,12 +12,14 @@ syn sync minlines=200 maxlines=1000
 syn keyword scalaKeyword catch do else final finally for forSome if
 syn keyword scalaKeyword match return throw try while yield
 syn keyword scalaKeyword class trait object extends with nextgroup=scalaInstanceDeclaration skipwhite
-syn keyword scalaKeyword type nextgroup=scalaTypeTypeDeclaration skipwhite
 syn keyword scalaKeyword case nextgroup=scalaKeyword,scalaCaseFollowing skipwhite
 syn keyword scalaKeyword val nextgroup=scalaNameDefinition,scalaQuasiQuotes skipwhite
 syn keyword scalaKeyword def var nextgroup=scalaNameDefinition skipwhite
 hi link scalaKeyword Keyword
 
+syn keyword scalaAkkaSpecialWord when goto using startWith initialize onTransition stay become unbecome
+hi link scalaAkkaSpecialWord PreProc
+
 syn match scalaSymbol /'[_A-Za-z0-9$]\+/
 hi link scalaSymbol Number
 
@@ -28,14 +30,26 @@ hi link scalaChar Character
 hi link scalaEscapedChar Function
 hi link scalaUnicodeChar Special
 
+syn match scalaOperator "||"
+syn match scalaOperator "&&"
+hi link scalaOperator Special
+
 syn match scalaNameDefinition /\<[_A-Za-z0-9$]\+\>/ contained nextgroup=scalaPostNameDefinition
 syn match scalaNameDefinition /`[^`]\+`/ contained nextgroup=scalaPostNameDefinition
 syn match scalaPostNameDefinition /\_s*:\_s*/ contained nextgroup=scalaTypeDeclaration
 hi link scalaNameDefinition Function
 
-syn match scalaInstanceDeclaration /\<[_\.A-Za-z0-9$]\+\>/ contained
+syn match scalaInstanceDeclaration /\<[_\.A-Za-z0-9$]\+\>/ contained nextgroup=scalaInstanceHash
 syn match scalaInstanceDeclaration /`[^`]\+`/ contained
+syn match scalaInstanceHash /#/ contained nextgroup=scalaInstanceDeclaration
 hi link scalaInstanceDeclaration Special
+hi link scalaInstanceHash Type
+
+syn match scalaCapitalWord /\<[A-Z][A-Za-z0-9$]*\>/
+hi link scalaCapitalWord Special
+
+" Handle type declarations specially
+syn region scalaTypeStatement matchgroup=Keyword start=/\<type\_s\+\ze/ end=/$/ contains=scalaTypeTypeDeclaration,scalaSquareBrackets,scalaTypeTypeEquals,scalaTypeStatement
 
 " Ugh... duplication of all the scalaType* stuff to handle special highlighting
 " of `type X =` declarations
@@ -43,18 +57,18 @@ syn match scalaTypeTypeDeclaration /(/ contained nextgroup=scalaTypeTypeExtensio
 syn match scalaTypeTypeDeclaration /\%(⇒\|=>\)\ze/ contained nextgroup=scalaTypeTypeDeclaration contains=scalaTypeTypeExtension skipwhite
 syn match scalaTypeTypeDeclaration /\<[_\.A-Za-z0-9$]\+\>/ contained nextgroup=scalaTypeTypeExtension,scalaTypeTypeEquals skipwhite
 syn match scalaTypeTypeEquals /=\ze[^>]/ contained nextgroup=scalaTypeTypePostDeclaration skipwhite
-syn match scalaTypeTypeExtension /)\?\_s*\zs\%(⇒\|=>\|<:\|:>\|=:=\|::\)/ contained nextgroup=scalaTypeTypeDeclaration skipwhite
-syn match scalaTypeTypePostDeclaration /\<[_A-Za-z0-9$]\+\>/ contained nextgroup=scalaTypeTypePostExtension contains=ALLBUT,scalaParamAnnotationValue skipwhite
+syn match scalaTypeTypeExtension /)\?\_s*\zs\%(⇒\|=>\|<:\|:>\|=:=\|::\|#\)/ contained nextgroup=scalaTypeTypeDeclaration skipwhite
+syn match scalaTypeTypePostDeclaration /\<[_\.A-Za-z0-9$]\+\>/ contained nextgroup=scalaTypeTypePostExtension skipwhite
 syn match scalaTypeTypePostExtension /\%(⇒\|=>\|<:\|:>\|=:=\|::\)/ contained nextgroup=scalaTypeTypePostDeclaration skipwhite
 hi link scalaTypeTypeDeclaration Type
 hi link scalaTypeTypeExtension Keyword
 hi link scalaTypeTypePostDeclaration Special
 hi link scalaTypeTypePostExtension Keyword
 
-syn match scalaTypeDeclaration /(/ contained nextgroup=scalaTypeExtension,scalaTypeEquals contains=scalaRoundBrackets skipwhite
+syn match scalaTypeDeclaration /(/ contained nextgroup=scalaTypeExtension contains=scalaRoundBrackets skipwhite
 syn match scalaTypeDeclaration /\%(⇒\|=>\)\ze/ contained nextgroup=scalaTypeDeclaration contains=scalaTypeExtension skipwhite
-syn match scalaTypeDeclaration /\<[_\.A-Za-z0-9$]\+\>/ contained nextgroup=scalaTypeExtension,scalaTypeEquals skipwhite
-syn match scalaTypeExtension /)\?\_s*\zs\%(⇒\|=>\|<:\|:>\|=:=\|::\)/ contained nextgroup=scalaTypeDeclaration skipwhite
+syn match scalaTypeDeclaration /\<[_\.A-Za-z0-9$]\+\>/ contained nextgroup=scalaTypeExtension skipwhite
+syn match scalaTypeExtension /)\?\_s*\zs\%(⇒\|=>\|<:\|:>\|=:=\|::\|#\)/ contained nextgroup=scalaTypeDeclaration skipwhite
 hi link scalaTypeDeclaration Type
 hi link scalaTypeExtension Keyword
 hi link scalaTypePostExtension Keyword
@@ -63,14 +77,14 @@ syn match scalaTypeAnnotation /\%([_a-zA-Z0-9$\s]:\_s*\)\ze[_=(\.A-Za-z0-9$]\+/
 syn match scalaTypeAnnotation /)\_s*:\_s*\ze[_=(\.A-Za-z0-9$]\+/ skipwhite nextgroup=scalaTypeDeclaration
 hi link scalaTypeAnnotation Normal
 
-syn match scalaCaseFollowing /\<[_\.A-Za-z0-9$]*\>/ contained
+syn match scalaCaseFollowing /\<[_\.A-Za-z0-9$]\+\>/ contained
 syn match scalaCaseFollowing /`[^`]\+`/ contained
 hi link scalaCaseFollowing Special
 
-syn keyword scalaKeywordModifier abstract override final lazy implicit private protected sealed null require super
+syn keyword scalaKeywordModifier abstract override final lazy implicit implicitly private protected sealed null require super
 hi link scalaKeywordModifier Function
 
-syn keyword scalaSpecial this true false package import
+syn keyword scalaSpecial this true false package import ne eq
 syn keyword scalaSpecial new nextgroup=scalaInstanceDeclaration skipwhite
 syn match scalaSpecial "\%(=>\|⇒\|<-\|←\|->\|→\)"
 syn match scalaSpecial /`[^`]*`/  " Backtick literals
@@ -97,23 +111,23 @@ syn region scalaQuasiQuotes matchgroup=Type start=/\<q"/ skip=/\\"/ end=/"/ cont
 syn region scalaQuasiQuotes matchgroup=Type start=/\<[tcp]q"/ skip=/\\"/ end=/"/ contains=scalaInterpolation
 hi link scalaQuasiQuotes String
 
-syn region scalaTripleQuasiQuotes matchgroup=Type start=/\<q"""/ end=/"""/ contains=scalaInterpolation
-syn region scalaTripleQuasiQuotes matchgroup=Type start=/\<[tcp]q"""/ end=/"""/ contains=scalaInterpolation
+syn region scalaTripleQuasiQuotes matchgroup=Type start=/\<q"""/ end=/"""\%([^"]\|$\)/ contains=scalaInterpolation
+syn region scalaTripleQuasiQuotes matchgroup=Type start=/\<[tcp]q"""/ end=/"""\%([^"]\|$\)/ contains=scalaInterpolation
 hi link scalaTripleQuasiQuotes String
 
-syn region scalaTripleString start=/"""/ end=/"""/ contains=scalaEscapedChar,scalaUnicodeChar
-syn region scalaTripleSString matchgroup=Special start=/s"""/ end=/"""/ contains=scalaInterpolation,scalaEscapedChar,scalaUnicodeChar
-syn region scalaTripleFString matchgroup=Special start=/f"""/ end=/"""/ contains=scalaInterpolation,scalaFInterpolation,scalaEscapedChar,scalaUnicodeChar
+syn region scalaTripleString start=/"""/ end=/"""\%([^"]\|$\)/ contains=scalaEscapedChar,scalaUnicodeChar
+syn region scalaTripleSString matchgroup=Special start=/s"""/ end=/"""\%([^"]\|$\)/ contains=scalaInterpolation,scalaEscapedChar,scalaUnicodeChar
+syn region scalaTripleFString matchgroup=Special start=/f"""/ end=/"""\%([^"]\|$\)/ contains=scalaInterpolation,scalaFInterpolation,scalaEscapedChar,scalaUnicodeChar
 hi link scalaTripleString String
 hi link scalaTripleSString String
 hi link scalaTripleFString String
 
-syn match scalaNumber /\<0[dDfFlL]\?\>/
-syn match scalaNumber /\<[1-9]\d*[dDfFlL]\?\>/
-syn match scalaNumber /\<0[xX][0-9a-fA-F]\+[dDfFlL]\?\>/
-syn match scalaNumber "\%(\<\d\+\.\d*\|\.\d\+\)\%([eE][-+]\=\d\+\)\=[fFdD]\="
-syn match scalaNumber "\<\d\+[eE][-+]\=\d\+[fFdD]\=\>"
-syn match scalaNumber "\<\d\+\%([eE][-+]\=\d\+\)\=[fFdD]\>"
+syn match scalaNumber /\<0[dDfFlL]\?\>/ " Just a bare 0
+syn match scalaNumber /\<[1-9]\d*[dDfFlL]\?\>/  " A multi-digit number - octal numbers with leading 0's are deprecated in Scala
+syn match scalaNumber /\<0[xX][0-9a-fA-F]\+[dDfFlL]\?\>/ " Hex number
+syn match scalaNumber /\%(\<\d\+\.\d*\|\.\d\+\)\%([eE][-+]\=\d\+\)\=[fFdD]\=/ " exponential notation 1
+syn match scalaNumber /\<\d\+[eE][-+]\=\d\+[fFdD]\=\>/ " exponential notation 2
+syn match scalaNumber /\<\d\+\%([eE][-+]\=\d\+\)\=[fFdD]\>/ " exponential notation 3
 hi link scalaNumber Number
 
 syn region scalaRoundBrackets start="(" end=")" skipwhite contained contains=scalaTypeDeclaration,scalaSquareBrackets,scalaRoundBrackets
@@ -142,3 +156,17 @@ hi link scalaAnnotation PreProc
 
 syn match scalaTrailingComment "//.*$"
 hi link scalaTrailingComment Comment
+
+syn match scalaAkkaFSM /goto([^)]*)\_s\+\<using\>/ contains=scalaAkkaFSMGotoUsing
+syn match scalaAkkaFSM /stay\_s\+using/
+syn match scalaAkkaFSM /^\s*stay\s*$/
+syn match scalaAkkaFSM /when\ze([^)]*)/
+syn match scalaAkkaFSM /startWith\ze([^)]*)/
+syn match scalaAkkaFSM /initialize\ze()/
+syn match scalaAkkaFSM /onTransition/
+syn match scalaAkkaFSM /onTermination/
+syn match scalaAkkaFSM /whenUnhandled/
+syn match scalaAkkaFSMGotoUsing /\<using\>/
+syn match scalaAkkaFSMGotoUsing /\<goto\>/
+hi link scalaAkkaFSM PreProc
+hi link scalaAkkaFSMGotoUsing PreProc