" 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
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