" Vim syntax file
" Language: Rexx
" Maintainer: Thomas Geulig <geulig@nentec.de>
" Last Change: 2005 Dez 9, added some <http://www.ooRexx.org>-coloring,
" line comments, do *over*, messages, directives,
" highlighting classes, methods, routines and requires
" Rony G. Flatscher <rony.flatscher@wu-wien.ac.at>
"
" URL: http://www.geulig.de/vim/rexx.vim
"
" Special Thanks to Dan Sharp <dwsharp@hotmail.com> and Rony G. Flatscher
" <Rony.Flatscher@wu-wien.ac.at> for comments and additions
" For version 5.x: Clear all syntax items
" For version 6.x: Quit when a syntax file was already loaded
if version < 600
syntax clear
elseif exists("b:current_syntax")
finish
endif
syn case ignore
" add to valid identifier chars
setlocal iskeyword+=.
setlocal iskeyword+=!
setlocal iskeyword+=?
" ---rgf, position important: must be before comments etc. !
syn match rexxOperator "[-=|\/\\\+\*\[\],;<>&\~]"
syn match rexxIdentifier "\<[a-zA-Z\!\?_]\([a-zA-Z0-9._?!]\)*\>"
syn match rexxEnvironmentSymbol "\<\.\+\([a-zA-Z0-9._?!]\)*\>"
" A Keyword is the first symbol in a clause. A clause begins at the start
" of a line or after a semicolon. THEN, ELSE, OTHERWISE, and colons are always
" followed by an implied semicolon.
syn match rexxClause "\(^\|;\|:\|then \|else \|otherwise \)\s*\w\+" contains=ALLBUT,rexxParse2,rexxRaise2
" Considered keywords when used together in a phrase and begin a clause
syn match rexxParse "\<parse\s*\(\(upper\|lower\|caseless\)\s*\)\=\(arg\|linein\|pull\|source\|var\|\<value\>\|version\)\>"
syn match rexxParse2 "\<with\>" contained containedin=rexxParse
syn match rexxKeyword contained "\<numeric \(digits\|form \(scientific\|engineering\|value\)\|fuzz\)\>"
syn match rexxKeyword contained "\<\(address\|trace\)\( value\)\=\>"
syn match rexxKeyword contained "\<procedure\(\s*expose\)\=\>"
syn match rexxKeyword contained "\<do\>\(\s*forever\)\=\>"
syn match rexxKeyword contained "\<use\>\s*\<arg\>"
" Another keyword phrase, separated to aid highlighting in rexxFunction
syn match rexxKeyword contained "\<signal\(\s*\(on\|off\)\s*\(any\|error\|failure\|halt\|lostdigits\|nomethod\|nostring\|notready\|novalue\|syntax\|user\s*\k*\)\(\s\+name\)\=\)\=\>"
syn match rexxKeyword2 contained "\<call\(\s*\(on\|off\)\s*\(any\|error\|failure\|halt\|notready\|user\s*\k*\)\(\s\+name\)\=\)\=\>"
" Considered keywords when they begin a clause
syn match rexxKeyword contained "\<\(arg\|do\|drop\|end\|exit\|expose\|forward\|if\|interpret\|iterate\|leave\|nop\)\>"
syn match rexxKeyword contained "\<\(options\|pull\|push\|queue\|raise\|reply\|return\|say\|select\|trace\)\>"
" Conditional phrases
syn match rexxConditional "\(^\s*\| \)\(to\|by\|for\|until\|while\|then\|when\|otherwise\|else\|over\)\( \|\s*$\)"
syn match rexxConditional contained "\<\(to\|by\|for\|until\|while\|then\|when\|otherwise\|else\|over\)\>"
" must be after Conditional phrases!
syn match rexxKeyword ".*\<\(then\|else\)\s*\<do\>"
" Raise statement
syn match rexxRaise "\(^\|;\|:\)\s\+\<raise\>\s*\<\(propagate\|error\|failure\|syntax\|user\)\>\="
syn match rexxRaise2 "\<\(additional\|array\|description\|exit\|return\)\>" contained containedin=rexxRaise
" Forward statement keywords
syn match rexxForward "\(^\|;\|:\)\<forward\>\s*"
syn match rexxForward2 "\<\(arguments\|array\|continue\|message\|class\|to\)\>" contained containedin=rexxForward
" Functions/Procedures
syn match rexxFunction "\<\w*\(/\*\s*\*/\)*("me=e-1 contains=rexxComment,rexxConditional,rexxKeyword,rexxIdentifier
syn match rexxFunction "\<\<[a-zA-Z\!\?_]\([a-zA-Z0-9._?!]\)*\>("me=e-1
syn match rexxFunction "\<call\s\+\k\+\>" contains=rexxKeyword2
syn match rexxFunction "[()]"
" String constants
syn region rexxString start=+"+ skip=+""+ end=+"\(x\|b\)\=+ oneline
syn region rexxString start=+'+ skip=+''+ end=+'\(x\|b\)\=+ oneline
" Catch errors caused by wrong parenthesis
syn region rexxParen transparent start='(' end=')' contains=ALLBUT,rexxParenError,rexxTodo,rexxLabel,rexxKeyword
syn match rexxParenError ")"
syn match rexxInParen "[\\[\\]{}]"
" Comments
syn region rexxComment start="/\*" end="\*/" contains=rexxTodo,rexxComment
syn match rexxCommentError "\*/"
syn match rexxLineComment /--.*/
syn keyword rexxTodo contained TODO FIXME XXX
" ooRexx messages
syn region rexxMessageOperator start="\(\~\|\~\~\)" end="\(\S\|\s\)"me=e-1
syn match rexxMessage "\(\~\|\~\~\)\s*\<\.*[a-zA-Z]\([a-zA-Z0-9._?!]\)*\>" contains=rexxMessageOperator
" Highlight User Labels
syn match rexxLabel "^\s*\k*\s*:"me=e-1
syn match rexxLineContinue ",\ze\s*\(--.*\|\/\*.*\)*$"
" the following is necessary, otherwise three consecutive dashes will cause it to highlight the first one
syn match rexxLineContinue "-\ze\(\s+--.*\|\s*\/\*.*\)*$"
" Special Variables
syn keyword rexxSpecialVariable sigl rc result self super
" Constants
syn keyword rexxConst .true .false .nil
" ooRexx builtin classes, first define dot to be o.k. in keywords
syn keyword rexxBuiltinClass .object .class .method .message
syn keyword rexxBuiltinClass .monitor .alarm
syn keyword rexxBuiltinClass .stem .stream .string
syn keyword rexxBuiltinClass .mutablebuffer
syn keyword rexxBuiltinClass .array .list .queue .directory .table .set
syn keyword rexxBuiltinClass .relation .bag .supplier .regularExpressions
" Windows-only classes
syn keyword rexxBuiltinClass .OLEObject .MenuObject .WindowsClipboard .WindowsEventLog
syn keyword rexxBuiltinClass .WindowsManager .WindowObject .WindowsProgramManager
" ooRexx directives, ---rgf location important, otherwise directives in top of
" file not matched!
syn region rexxClass start="::\s*class\s*"ms=e+1 end="\ze\(\s\|;\|$\)"
syn region rexxMethod start="::\s*method\s*"ms=e+1 end="\ze\(\s\|;\|$\)"
syn region rexxRequires start="::\s*requires\s*"ms=e+1 end="\ze\(\s\|;\|$\)"
syn region rexxRoutine start="::\s*routine\s*"ms=e+1 end="\ze\(\s\|;\|$\)"
syn region rexxDirective start="\(^\|;\)\s*::\s*\w\+" end="\($\|;\)" contains=rexxString,rexxComment,rexxLineComment,rexxClass,rexxMethod,rexxRoutine,rexxRequires keepend
if !exists("rexx_minlines")
" let rexx_minlines = 10
let rexx_minlines = 500
endif
exec "syn sync ccomment rexxComment minlines=" . rexx_minlines
" Define the default highlighting.
" For version 5.7 and earlier: only when not done already
" For version 5.8 and later: only when an item doesn't have highlighting yet
if version >= 508 || !exists("did_rexx_syn_inits")
if version < 508
let did_rexx_syn_inits = 1
command -nargs=+ HiLink hi link <args>
else
command -nargs=+ HiLink hi def link <args>
endif
HiLink rexxLabel Function
HiLink rexxCharacter Character
HiLink rexxParenError rexxError
HiLink rexxInParen rexxError
HiLink rexxCommentError rexxError
HiLink rexxError Error
HiLink rexxKeyword Statement
HiLink rexxKeyword2 rexxKeyword
HiLink rexxFunction Function
HiLink rexxString String
HiLink rexxComment Comment
HiLink rexxTodo Todo
HiLink rexxSpecialVariable Special
HiLink rexxConditional rexxKeyword
HiLink rexxOperator Operator
HiLink rexxMessageOperator rexxOperator
HiLink rexxLineComment RexxComment
HiLink rexxLineContinue WildMenu
HiLink rexxDirective rexxKeyword
HiLink rexxClass Type
HiLink rexxMethod rexxFunction
HiLink rexxRequires Include
HiLink rexxRoutine rexxFunction
HiLink rexxConst Constant
HiLink rexxTypeSpecifier Type
HiLink rexxBuiltinClass rexxTypeSpecifier
HiLink rexxEnvironmentSymbol rexxConst
HiLink rexxMessage rexxFunction
HiLink rexxParse rexxKeyword
HiLink rexxParse2 rexxParse
HiLink rexxRaise rexxKeyword
HiLink rexxRaise2 rexxRaise
HiLink rexxForward rexxKeyword
HiLink rexxForward2 rexxForward
delcommand HiLink
endif
let b:current_syntax = "rexx"
"vim: ts=8
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