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" Vim syntax file
" Language: B (A Formal Method with refinement and mathematical proof)
" Maintainer: Mathieu Clabaut <mathieu.clabaut@gmail.com>
" Contributor: Csaba Hoch
" LastChange: 8 Dec 2007
" quit when a syntax file was already loaded
if exists("b:current_syntax")
finish
endif
" A bunch of useful B keywords
syn keyword bStatement MACHINE MODEL SEES OPERATIONS INCLUDES DEFINITIONS CONSTRAINTS CONSTANTS VARIABLES CONCRETE_CONSTANTS CONCRETE_VARIABLES ABSTRACT_CONSTANTS ABSTRACT_VARIABLES HIDDEN_CONSTANTS HIDDEN_VARIABLES ASSERT ASSERTIONS EXTENDS IMPLEMENTATION REFINEMENT IMPORTS USES INITIALISATION INVARIANT PROMOTES PROPERTIES REFINES SETS VALUES VARIANT VISIBLE_CONSTANTS VISIBLE_VARIABLES THEORY XLS THEOREMS LOCAL_OPERATIONS
syn keyword bLabel CASE IN EITHER OR CHOICE DO OF
syn keyword bConditional IF ELSE SELECT ELSIF THEN WHEN
syn keyword bRepeat WHILE FOR
syn keyword bOps bool card conc closure closure1 dom first fnc front not or id inter iseq iseq1 iterate last max min mod perm pred prj1 prj2 ran rel rev seq seq1 size skip succ tail union
syn keyword bKeywords LET VAR BE IN BEGIN END POW POW1 FIN FIN1 PRE SIGMA STRING UNION IS ANY WHERE
syn keyword bBoolean TRUE FALSE bfalse btrue
syn keyword bConstant PI MAXINT MININT User_Pass PatchProver PatchProverH0 PatchProverB0 FLAT ARI DED SUB RES
syn keyword bGuard binhyp band bnot bguard bsearch bflat bfresh bguardi bget bgethyp barith bgetresult bresult bgoal bmatch bmodr bnewv bnum btest bpattern bprintf bwritef bsubfrm bvrb blvar bcall bappend bclose
syn keyword bLogic or not
syn match bLogic "\(!\|#\|%\|&\|+->>\|+->\|-->>\|->>\|-->\|->\|/:\|/<:\|/<<:\|/=\|/\\\|/|\\\|::\|:\|;:\|<+\|<->\|<--\|<-\|<:\|<<:\|<<|\|<=>\|<|\|==\|=>\|>+>>\|>->\|>+>\|||\||->\)"
syn match bNothing /:=/
syn keyword cTodo contained TODO FIXME XXX
" String and Character constants
" Highlight special characters (those which have a backslash) differently
syn match bSpecial contained "\\[0-7][0-7][0-7]\=\|\\."
syn region bString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=bSpecial
syn match bCharacter "'[^\\]'"
syn match bSpecialCharacter "'\\.'"
syn match bSpecialCharacter "'\\[0-7][0-7]'"
syn match bSpecialCharacter "'\\[0-7][0-7][0-7]'"
"catch errors caused by wrong parenthesis
syn region bParen transparent start='(' end=')' contains=ALLBUT,bParenError,bIncluded,bSpecial,bTodo,bUserLabel,bBitField
syn match bParenError ")"
syn match bInParen contained "[{}]"
"integer number, or floating point number without a dot and with "f".
syn case ignore
syn match bNumber "\<[0-9]\+\>"
"syn match bIdentifier "\<[a-z_][a-z0-9_]*\>"
syn case match
syn region bComment start="/\*" end="\*/" contains=bTodo
syn match bComment "//.*" contains=bTodo
syntax match bCommentError "\*/"
syn keyword bType INT INTEGER BOOL NAT NATURAL NAT1 NATURAL1
syn region bPreCondit start="^\s*#\s*\(if\>\|ifdef\>\|ifndef\>\|elif\>\|else\>\|endif\>\)" skip="\\$" end="$" contains=bComment,bString,bCharacter,bNumber,bCommentError
syn region bIncluded contained start=+"+ skip=+\\\\\|\\"+ end=+"+
syn match bIncluded contained "<[^>]*>"
syn match bInclude "^\s*#\s*include\>\s*["<]" contains=bIncluded
syn region bDefine start="^\s*#\s*\(define\>\|undef\>\)" skip="\\$" end="$" contains=ALLBUT,bPreCondit,bIncluded,bInclude,bDefine,bInParen
syn region bPreProc start="^\s*#\s*\(pragma\>\|line\>\|warning\>\|warn\>\|error\>\)" skip="\\$" end="$" contains=ALLBUT,bPreCondit,bIncluded,bInclude,bDefine,bInParen
syn sync ccomment bComment minlines=10
" Define the default highlighting.
" Only when an item doesn't have highlighting yet
" The default methods for highlighting. Can be overridden later
hi def link bLabel Label
hi def link bUserLabel Label
hi def link bConditional Conditional
hi def link bRepeat Repeat
hi def link bLogic Special
hi def link bCharacter Character
hi def link bSpecialCharacter bSpecial
hi def link bNumber Number
hi def link bFloat Float
hi def link bOctalError bError
hi def link bParenError bError
" hi def link bInParen bError
hi def link bCommentError bError
hi def link bBoolean Identifier
hi def link bConstant Identifier
hi def link bGuard Identifier
hi def link bOperator Operator
hi def link bKeywords Operator
hi def link bOps Identifier
hi def link bStructure Structure
hi def link bStorageClass StorageClass
hi def link bInclude Include
hi def link bPreProc PreProc
hi def link bDefine Macro
hi def link bIncluded bString
hi def link bError Error
hi def link bStatement Statement
hi def link bPreCondit PreCondit
hi def link bType Type
hi def link bCommentError bError
hi def link bCommentString bString
hi def link bComment2String bString
hi def link bCommentSkip bComment
hi def link bString String
hi def link bComment Comment
hi def link bSpecial SpecialChar
hi def link bTodo Todo
"hi link bIdentifier Identifier
let b:current_syntax = "b"
" vim: ts=8