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+" Vim syntax file
+" Language: Smalltalk
+" Maintainer: Arndt Hesse <hesse@self.de>
+" Last Change: 2012 Feb 12 by Thilo Six
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+ finish
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+" some Smalltalk keywords and standard methods
+syn keyword stKeyword super self class true false new not
+syn keyword stKeyword notNil isNil inspect out nil
+syn match stMethod "\<do\>:"
+syn match stMethod "\<whileTrue\>:"
+syn match stMethod "\<whileFalse\>:"
+syn match stMethod "\<ifTrue\>:"
+syn match stMethod "\<ifFalse\>:"
+syn match stMethod "\<put\>:"
+syn match stMethod "\<to\>:"
+syn match stMethod "\<at\>:"
+syn match stMethod "\<add\>:"
+syn match stMethod "\<new\>:"
+syn match stMethod "\<for\>:"
+syn match stMethod "\<methods\>:"
+syn match stMethod "\<methodsFor\>:"
+syn match stMethod "\<instanceVariableNames\>:"
+syn match stMethod "\<classVariableNames\>:"
+syn match stMethod "\<poolDictionaries\>:"
+syn match stMethod "\<subclass\>:"
+
+" the block of local variables of a method
+syn region stLocalVariables start="^[ \t]*|" end="|"
+
+" the Smalltalk comment
+syn region stComment start="\"" end="\""
+
+" the Smalltalk strings and single characters
+syn region stString start='\'' skip="''" end='\''
+syn match stCharacter "$."
+
+syn case ignore
+
+" the symols prefixed by a '#'
+syn match stSymbol "\(#\<[a-z_][a-z0-9_]*\>\)"
+syn match stSymbol "\(#'[^']*'\)"
+
+" the variables in a statement block for loops
+syn match stBlockVariable "\(:[ \t]*\<[a-z_][a-z0-9_]*\>[ \t]*\)\+|" contained
+
+" some representations of numbers
+syn match stNumber "\<\d\+\(u\=l\=\|lu\|f\)\>"
+syn match stFloat "\<\d\+\.\d*\(e[-+]\=\d\+\)\=[fl]\=\>"
+syn match stFloat "\<\d\+e[-+]\=\d\+[fl]\=\>"
+
+syn case match
+
+" a try to higlight paren mismatches
+syn region stParen transparent start='(' end=')' contains=ALLBUT,stParenError
+syn match stParenError ")"
+syn region stBlock transparent start='\[' end='\]' contains=ALLBUT,stBlockError
+syn match stBlockError "\]"
+syn region stSet transparent start='{' end='}' contains=ALLBUT,stSetError
+syn match stSetError "}"
+
+hi link stParenError stError
+hi link stSetError stError
+hi link stBlockError stError
+
+" synchronization for syntax analysis
+syn sync minlines=50
+
+" Define the default highlighting.
+" Only when an item doesn't have highlighting yet
+
+hi def link stKeyword Statement
+hi def link stMethod Statement
+hi def link stComment Comment
+hi def link stCharacter Constant
+hi def link stString Constant
+hi def link stSymbol Special
+hi def link stNumber Type
+hi def link stFloat Type
+hi def link stError Error
+hi def link stLocalVariables Identifier
+hi def link stBlockVariable Identifier
+
+
+let b:current_syntax = "st"
+
+let &cpo = s:cpo_save
+unlet s:cpo_save