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+" Vim syntax file
+" Language: Rebol
+" Maintainer: Mike Williams <mrw@eandem.co.uk>
+" Filenames: *.r
+" Last Change: 27th June 2002
+" URL: http://www.eandem.co.uk/mrw/vim
+"
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+ finish
+endif
+
+" Rebol is case insensitive
+syn case ignore
+
+" As per current users documentation
+setlocal isk=@,48-57,?,!,.,',+,-,*,&,\|,=,_,~
+
+" Yer TODO highlighter
+syn keyword rebolTodo contained TODO
+
+" Comments
+syn match rebolComment ";.*$" contains=rebolTodo
+
+" Words
+syn match rebolWord "\a\k*"
+syn match rebolWordPath "[^[:space:]]/[^[:space]]"ms=s+1,me=e-1
+
+" Booleans
+syn keyword rebolBoolean true false on off yes no
+
+" Values
+" Integers
+syn match rebolInteger "\<[+-]\=\d\+\('\d*\)*\>"
+" Decimals
+syn match rebolDecimal "[+-]\=\(\d\+\('\d*\)*\)\=[,.]\d*\(e[+-]\=\d\+\)\="
+syn match rebolDecimal "[+-]\=\d\+\('\d*\)*\(e[+-]\=\d\+\)\="
+" Time
+syn match rebolTime "[+-]\=\(\d\+\('\d*\)*\:\)\{1,2}\d\+\('\d*\)*\([.,]\d\+\)\=\([AP]M\)\=\>"
+syn match rebolTime "[+-]\=:\d\+\([.,]\d*\)\=\([AP]M\)\=\>"
+" Dates
+" DD-MMM-YY & YYYY format
+syn match rebolDate "\d\{1,2}\([/-]\)\(Jan\|Feb\|Mar\|Apr\|May\|Jun\|Jul\|Aug\|Sep\|Oct\|Nov\|Dec\)\1\(\d\{2}\)\{1,2}\>"
+" DD-month-YY & YYYY format
+syn match rebolDate "\d\{1,2}\([/-]\)\(January\|February\|March\|April\|May\|June\|July\|August\|September\|October\|November\|December\)\1\(\d\{2}\)\{1,2}\>"
+" DD-MM-YY & YY format
+syn match rebolDate "\d\{1,2}\([/-]\)\d\{1,2}\1\(\d\{2}\)\{1,2}\>"
+" YYYY-MM-YY format
+syn match rebolDate "\d\{4}-\d\{1,2}-\d\{1,2}\>"
+" DD.MM.YYYY format
+syn match rebolDate "\d\{1,2}\.\d\{1,2}\.\d\{4}\>"
+" Money
+syn match rebolMoney "\a*\$\d\+\('\d*\)*\([,.]\d\+\)\="
+" Strings
+syn region rebolString oneline start=+"+ skip=+^"+ end=+"+ contains=rebolSpecialCharacter
+syn region rebolString start=+[^#]{+ end=+}+ skip=+{[^}]*}+ contains=rebolSpecialCharacter
+" Binary
+syn region rebolBinary start=+\d*#{+ end=+}+ contains=rebolComment
+" Email
+syn match rebolEmail "\<\k\+@\(\k\+\.\)*\k\+\>"
+" File
+syn match rebolFile "%\(\k\+/\)*\k\+[/]\=" contains=rebolSpecialCharacter
+syn region rebolFile oneline start=+%"+ end=+"+ contains=rebolSpecialCharacter
+" URLs
+syn match rebolURL "http://\k\+\(\.\k\+\)*\(:\d\+\)\=\(/\(\k\+/\)*\(\k\+\)\=\)*"
+syn match rebolURL "file://\k\+\(\.\k\+\)*/\(\k\+/\)*\k\+"
+syn match rebolURL "ftp://\(\k\+:\k\+@\)\=\k\+\(\.\k\+\)*\(:\d\+\)\=/\(\k\+/\)*\k\+"
+syn match rebolURL "mailto:\k\+\(\.\k\+\)*@\k\+\(\.\k\+\)*"
+" Issues
+syn match rebolIssue "#\(\d\+-\)*\d\+"
+" Tuples
+syn match rebolTuple "\(\d\+\.\)\{2,}"
+
+" Characters
+syn match rebolSpecialCharacter contained "\^[^[:space:][]"
+syn match rebolSpecialCharacter contained "%\d\+"
+
+
+" Operators
+" Math operators
+syn match rebolMathOperator "\(\*\{1,2}\|+\|-\|/\{1,2}\)"
+syn keyword rebolMathFunction abs absolute add arccosine arcsine arctangent cosine
+syn keyword rebolMathFunction divide exp log-10 log-2 log-e max maximum min
+syn keyword rebolMathFunction minimum multiply negate power random remainder sine
+syn keyword rebolMathFunction square-root subtract tangent
+" Binary operators
+syn keyword rebolBinaryOperator complement and or xor ~
+" Logic operators
+syn match rebolLogicOperator "[<>=]=\="
+syn match rebolLogicOperator "<>"
+syn keyword rebolLogicOperator not
+syn keyword rebolLogicFunction all any
+syn keyword rebolLogicFunction head? tail?
+syn keyword rebolLogicFunction negative? positive? zero? even? odd?
+syn keyword rebolLogicFunction binary? block? char? date? decimal? email? empty?
+syn keyword rebolLogicFunction file? found? function? integer? issue? logic? money?
+syn keyword rebolLogicFunction native? none? object? paren? path? port? series?
+syn keyword rebolLogicFunction string? time? tuple? url? word?
+syn keyword rebolLogicFunction exists? input? same? value?
+
+" Datatypes
+syn keyword rebolType binary! block! char! date! decimal! email! file!
+syn keyword rebolType function! integer! issue! logic! money! native!
+syn keyword rebolType none! object! paren! path! port! string! time!
+syn keyword rebolType tuple! url! word!
+syn keyword rebolTypeFunction type?
+
+" Control statements
+syn keyword rebolStatement break catch exit halt reduce return shield
+syn keyword rebolConditional if else
+syn keyword rebolRepeat for forall foreach forskip loop repeat while until do
+
+" Series statements
+syn keyword rebolStatement change clear copy fifth find first format fourth free
+syn keyword rebolStatement func function head insert last match next parse past
+syn keyword rebolStatement pick remove second select skip sort tail third trim length?
+
+" Context
+syn keyword rebolStatement alias bind use
+
+" Object
+syn keyword rebolStatement import make make-object rebol info?
+
+" I/O statements
+syn keyword rebolStatement delete echo form format import input load mold prin
+syn keyword rebolStatement print probe read save secure send write
+syn keyword rebolOperator size? modified?
+
+" Debug statement
+syn keyword rebolStatement help probe trace
+
+" Misc statements
+syn keyword rebolStatement func function free
+
+" Constants
+syn keyword rebolConstant none
+
+
+" Define the default highlighting.
+" Only when an item doesn't have highlighting yet
+
+hi def link rebolTodo Todo
+
+hi def link rebolStatement Statement
+hi def link rebolLabel Label
+hi def link rebolConditional Conditional
+hi def link rebolRepeat Repeat
+
+hi def link rebolOperator Operator
+hi def link rebolLogicOperator rebolOperator
+hi def link rebolLogicFunction rebolLogicOperator
+hi def link rebolMathOperator rebolOperator
+hi def link rebolMathFunction rebolMathOperator
+hi def link rebolBinaryOperator rebolOperator
+hi def link rebolBinaryFunction rebolBinaryOperator
+
+hi def link rebolType Type
+hi def link rebolTypeFunction rebolOperator
+
+hi def link rebolWord Identifier
+hi def link rebolWordPath rebolWord
+hi def link rebolFunction Function
+
+hi def link rebolCharacter Character
+hi def link rebolSpecialCharacter SpecialChar
+hi def link rebolString String
+
+hi def link rebolNumber Number
+hi def link rebolInteger rebolNumber
+hi def link rebolDecimal rebolNumber
+hi def link rebolTime rebolNumber
+hi def link rebolDate rebolNumber
+hi def link rebolMoney rebolNumber
+hi def link rebolBinary rebolNumber
+hi def link rebolEmail rebolString
+hi def link rebolFile rebolString
+hi def link rebolURL rebolString
+hi def link rebolIssue rebolNumber
+hi def link rebolTuple rebolNumber
+hi def link rebolFloat Float
+hi def link rebolBoolean Boolean
+
+hi def link rebolConstant Constant
+
+hi def link rebolComment Comment
+
+hi def link rebolError Error
+
+
+if exists("my_rebol_file")
+ if file_readable(expand(my_rebol_file))
+ execute "source " . my_rebol_file
+ endif
+endif
+
+let b:current_syntax = "rebol"
+
+" vim: ts=8