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+" Vim syntax file
+" Language: LOTOS (Language Of Temporal Ordering Specifications, IS8807)
+" Maintainer: Daniel Amyot <damyot@csi.uottawa.ca>
+" Last Change: Wed Aug 19 1998
+" URL: http://lotos.csi.uottawa.ca/~damyot/vim/lotos.vim
+" This file is an adaptation of pascal.vim by Mario Eusebio
+" I'm not sure I understand all of the syntax highlight language,
+" but this file seems to do the job for standard LOTOS.
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+ finish
+endif
+
+syn case ignore
+
+"Comments in LOTOS are between (* and *)
+syn region lotosComment start="(\*" end="\*)" contains=lotosTodo
+
+"Operators [], [...], >>, ->, |||, |[...]|, ||, ;, !, ?, :, =, ,, :=
+syn match lotosDelimiter "[][]"
+syn match lotosDelimiter ">>"
+syn match lotosDelimiter "->"
+syn match lotosDelimiter "\[>"
+syn match lotosDelimiter "[|;!?:=,]"
+
+"Regular keywords
+syn keyword lotosStatement specification endspec process endproc
+syn keyword lotosStatement where behaviour behavior
+syn keyword lotosStatement any let par accept choice hide of in
+syn keyword lotosStatement i stop exit noexit
+
+"Operators from the Abstract Data Types in IS8807
+syn keyword lotosOperator eq ne succ and or xor implies iff
+syn keyword lotosOperator not true false
+syn keyword lotosOperator Insert Remove IsIn NotIn Union Ints
+syn keyword lotosOperator Minus Includes IsSubsetOf
+syn keyword lotosOperator lt le ge gt 0
+
+"Sorts in IS8807
+syn keyword lotosSort Boolean Bool FBoolean FBool Element
+syn keyword lotosSort Set String NaturalNumber Nat HexString
+syn keyword lotosSort HexDigit DecString DecDigit
+syn keyword lotosSort OctString OctDigit BitString Bit
+syn keyword lotosSort Octet OctetString
+
+"Keywords for ADTs
+syn keyword lotosType type endtype library endlib sorts formalsorts
+syn keyword lotosType eqns formaleqns opns formalopns forall ofsort is
+syn keyword lotosType for renamedby actualizedby sortnames opnnames
+syn keyword lotosType using
+
+syn sync lines=250
+
+" Define the default highlighting.
+" Only when an item doesn't have highlighting yet
+
+hi def link lotosStatement Statement
+hi def link lotosProcess Label
+hi def link lotosOperator Operator
+hi def link lotosSort Function
+hi def link lotosType Type
+hi def link lotosComment Comment
+hi def link lotosDelimiter String
+
+
+let b:current_syntax = "lotos"
+
+" vim: ts=8