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" Vim syntax file
" Language: OCaml
" Filenames: *.ml *.mli *.mll *.mly
" Maintainers: Markus Mottl <markus.mottl@gmail.com>
" Karl-Heinz Sylla <Karl-Heinz.Sylla@gmd.de>
" Issac Trotts <ijtrotts@ucdavis.edu>
" URL: http://www.ocaml.info/vim/syntax/ocaml.vim
" Last Change: 2012 May 12 - Added Dominique Pellé's spell checking patch (MM)
" 2012 Feb 01 - Improved module path highlighting (MM)
" 2010 Oct 11 - Added highlighting of lnot (MM, thanks to Erick Matsen)
" A minor patch was applied to the official version so that object/end
" can be distinguished from begin/end, which is used for indentation,
" and folding. (David Baelde)
" quit when a syntax file was already loaded
if exists("b:current_syntax") && b:current_syntax == "ocaml"
finish
endif
" OCaml is case sensitive.
syn case match
" Access to the method of an object
syn match ocamlMethod "#"
" Script headers highlighted like comments
syn match ocamlComment "^#!.*" contains=@Spell
" Scripting directives
syn match ocamlScript "^#\<\(quit\|labels\|warnings\|directory\|cd\|load\|use\|install_printer\|remove_printer\|require\|thread\|trace\|untrace\|untrace_all\|print_depth\|print_length\|camlp4o\)\>"
" lowercase identifier - the standard way to match
syn match ocamlLCIdentifier /\<\(\l\|_\)\(\w\|'\)*\>/
syn match ocamlKeyChar "|"
" Errors
syn match ocamlBraceErr "}"
syn match ocamlBrackErr "\]"
syn match ocamlParenErr ")"
syn match ocamlArrErr "|]"
syn match ocamlCommentErr "\*)"
syn match ocamlCountErr "\<downto\>"
syn match ocamlCountErr "\<to\>"
if !exists("ocaml_revised")
syn match ocamlDoErr "\<do\>"
endif
syn match ocamlDoneErr "\<done\>"
syn match ocamlThenErr "\<then\>"
" Error-highlighting of "end" without synchronization:
" as keyword or as error (default)
if exists("ocaml_noend_error")
syn match ocamlKeyword "\<end\>"
else
syn match ocamlEndErr "\<end\>"
endif
" Some convenient clusters
syn cluster ocamlAllErrs contains=ocamlBraceErr,ocamlBrackErr,ocamlParenErr,ocamlCommentErr,ocamlCountErr,ocamlDoErr,ocamlDoneErr,ocamlEndErr,ocamlThenErr
syn cluster ocamlAENoParen contains=ocamlBraceErr,ocamlBrackErr,ocamlCommentErr,ocamlCountErr,ocamlDoErr,ocamlDoneErr,ocamlEndErr,ocamlThenErr
syn cluster ocamlContained contains=ocamlTodo,ocamlPreDef,ocamlModParam,ocamlModParam1,ocamlPreMPRestr,ocamlMPRestr,ocamlMPRestr1,ocamlMPRestr2,ocamlMPRestr3,ocamlModRHS,ocamlFuncWith,ocamlFuncStruct,ocamlModTypeRestr,ocamlModTRWith,ocamlWith,ocamlWithRest,ocamlModType,ocamlFullMod,ocamlVal
" Enclosing delimiters
syn region ocamlEncl transparent matchgroup=ocamlKeyword start="(" matchgroup=ocamlKeyword end=")" contains=ALLBUT,@ocamlContained,ocamlParenErr
syn region ocamlEncl transparent matchgroup=ocamlKeyword start="{" matchgroup=ocamlKeyword end="}" contains=ALLBUT,@ocamlContained,ocamlBraceErr
syn region ocamlEncl transparent matchgroup=ocamlKeyword start="\[" matchgroup=ocamlKeyword end="\]" contains=ALLBUT,@ocamlContained,ocamlBrackErr
syn region ocamlEncl transparent matchgroup=ocamlKeyword start="\[|" matchgroup=ocamlKeyword end="|\]" contains=ALLBUT,@ocamlContained,ocamlArrErr
" Comments
syn region ocamlComment start="(\*" end="\*)" contains=@Spell,ocamlComment,ocamlTodo
syn keyword ocamlTodo contained TODO FIXME XXX NOTE
" Objects
syn region ocamlEnd matchgroup=ocamlObject start="\<object\>" matchgroup=ocamlObject end="\<end\>" contains=ALLBUT,@ocamlContained,ocamlEndErr
" Blocks
if !exists("ocaml_revised")
syn region ocamlEnd matchgroup=ocamlKeyword start="\<begin\>" matchgroup=ocamlKeyword end="\<end\>" contains=ALLBUT,@ocamlContained,ocamlEndErr
endif
" "for"
syn region ocamlNone matchgroup=ocamlKeyword start="\<for\>" matchgroup=ocamlKeyword end="\<\(to\|downto\)\>" contains=ALLBUT,@ocamlContained,ocamlCountErr
" "do"
if !exists("ocaml_revised")
syn region ocamlDo matchgroup=ocamlKeyword start="\<do\>" matchgroup=ocamlKeyword end="\<done\>" contains=ALLBUT,@ocamlContained,ocamlDoneErr
endif
" "if"
syn region ocamlNone matchgroup=ocamlKeyword start="\<if\>" matchgroup=ocamlKeyword end="\<then\>" contains=ALLBUT,@ocamlContained,ocamlThenErr
"" Modules
" "sig"
syn region ocamlSig matchgroup=ocamlModule start="\<sig\>" matchgroup=ocamlModule end="\<end\>" contains=ALLBUT,@ocamlContained,ocamlEndErr,ocamlModule
syn region ocamlModSpec matchgroup=ocamlKeyword start="\<module\>" matchgroup=ocamlModule end="\<\u\(\w\|'\)*\>" contained contains=@ocamlAllErrs,ocamlComment skipwhite skipempty nextgroup=ocamlModTRWith,ocamlMPRestr
" "open"
syn region ocamlNone matchgroup=ocamlKeyword start="\<open\>" matchgroup=ocamlModule end="\<\u\(\w\|'\)*\( *\. *\u\(\w\|'\)*\)*\>" contains=@ocamlAllErrs,ocamlComment
" "include"
syn match ocamlKeyword "\<include\>" skipwhite skipempty nextgroup=ocamlModParam,ocamlFullMod
" "module" - somewhat complicated stuff ;-)
syn region ocamlModule matchgroup=ocamlKeyword start="\<module\>" matchgroup=ocamlModule end="\<\u\(\w\|'\)*\>" contains=@ocamlAllErrs,ocamlComment skipwhite skipempty nextgroup=ocamlPreDef
syn region ocamlPreDef start="."me=e-1 matchgroup=ocamlKeyword end="\l\|=\|)"me=e-1 contained contains=@ocamlAllErrs,ocamlComment,ocamlModParam,ocamlModTypeRestr,ocamlModTRWith nextgroup=ocamlModPreRHS
syn region ocamlModParam start="([^*]" end=")" contained contains=@ocamlAENoParen,ocamlModParam1,ocamlVal
syn match ocamlModParam1 "\<\u\(\w\|'\)*\>" contained skipwhite skipempty nextgroup=ocamlPreMPRestr
syn region ocamlPreMPRestr start="."me=e-1 end=")"me=e-1 contained contains=@ocamlAllErrs,ocamlComment,ocamlMPRestr,ocamlModTypeRestr
syn region ocamlMPRestr start=":" end="."me=e-1 contained contains=@ocamlComment skipwhite skipempty nextgroup=ocamlMPRestr1,ocamlMPRestr2,ocamlMPRestr3
syn region ocamlMPRestr1 matchgroup=ocamlModule start="\ssig\s\=" matchgroup=ocamlModule end="\<end\>" contained contains=ALLBUT,@ocamlContained,ocamlEndErr,ocamlModule
syn region ocamlMPRestr2 start="\sfunctor\(\s\|(\)\="me=e-1 matchgroup=ocamlKeyword end="->" contained contains=@ocamlAllErrs,ocamlComment,ocamlModParam skipwhite skipempty nextgroup=ocamlFuncWith,ocamlMPRestr2
syn match ocamlMPRestr3 "\w\(\w\|'\)*\( *\. *\w\(\w\|'\)*\)*" contained
syn match ocamlModPreRHS "=" contained skipwhite skipempty nextgroup=ocamlModParam,ocamlFullMod
syn keyword ocamlKeyword val
syn region ocamlVal matchgroup=ocamlKeyword start="\<val\>" matchgroup=ocamlLCIdentifier end="\<\l\(\w\|'\)*\>" contains=@ocamlAllErrs,ocamlComment,ocamlFullMod skipwhite skipempty nextgroup=ocamlMPRestr
syn region ocamlModRHS start="." end=". *\w\|([^*]"me=e-2 contained contains=ocamlComment skipwhite skipempty nextgroup=ocamlModParam,ocamlFullMod
syn match ocamlFullMod "\<\u\(\w\|'\)*\( *\. *\u\(\w\|'\)*\)*" contained skipwhite skipempty nextgroup=ocamlFuncWith
syn region ocamlFuncWith start="([^*]"me=e-1 end=")" contained contains=ocamlComment,ocamlWith,ocamlFuncStruct skipwhite skipempty nextgroup=ocamlFuncWith
syn region ocamlFuncStruct matchgroup=ocamlModule start="[^a-zA-Z]struct\>"hs=s+1 matchgroup=ocamlModule end="\<end\>" contains=ALLBUT,@ocamlContained,ocamlEndErr
syn match ocamlModTypeRestr "\<\w\(\w\|'\)*\( *\. *\w\(\w\|'\)*\)*\>" contained
syn region ocamlModTRWith start=":\s*("hs=s+1 end=")" contained contains=@ocamlAENoParen,ocamlWith
syn match ocamlWith "\<\(\u\(\w\|'\)* *\. *\)*\w\(\w\|'\)*\>" contained skipwhite skipempty nextgroup=ocamlWithRest
syn region ocamlWithRest start="[^)]" end=")"me=e-1 contained contains=ALLBUT,@ocamlContained
" "struct"
syn region ocamlStruct matchgroup=ocamlModule start="\<\(module\s\+\)\=struct\>" matchgroup=ocamlModule end="\<end\>" contains=ALLBUT,@ocamlContained,ocamlEndErr
" "module type"
syn region ocamlKeyword start="\<module\>\s*\<type\>\(\s*\<of\>\)\=" matchgroup=ocamlModule end="\<\w\(\w\|'\)*\>" contains=ocamlComment skipwhite skipempty nextgroup=ocamlMTDef
syn match ocamlMTDef "=\s*\w\(\w\|'\)*\>"hs=s+1,me=s+1 skipwhite skipempty nextgroup=ocamlFullMod
syn keyword ocamlKeyword and as assert class
syn keyword ocamlKeyword constraint else
syn keyword ocamlKeyword exception external fun
syn keyword ocamlKeyword in inherit initializer
syn keyword ocamlKeyword land lazy let match
syn keyword ocamlKeyword method mutable new of
syn keyword ocamlKeyword parser private raise rec
syn keyword ocamlKeyword try type
syn keyword ocamlKeyword virtual when while with
if exists("ocaml_revised")
syn keyword ocamlKeyword do value
syn keyword ocamlBoolean True False
else
syn keyword ocamlKeyword function
syn keyword ocamlBoolean true false
syn match ocamlKeyChar "!"
endif
syn keyword ocamlType array bool char exn float format format4
syn keyword ocamlType int int32 int64 lazy_t list nativeint option
syn keyword ocamlType string unit
syn keyword ocamlOperator asr lnot lor lsl lsr lxor mod not
syn match ocamlConstructor "(\s*)"
syn match ocamlConstructor "\[\s*\]"
syn match ocamlConstructor "\[|\s*>|]"
syn match ocamlConstructor "\[<\s*>\]"
syn match ocamlConstructor "\u\(\w\|'\)*\>"
" Polymorphic variants
syn match ocamlConstructor "`\w\(\w\|'\)*\>"
" Module prefix
syn match ocamlModPath "\u\(\w\|'\)* *\."he=e-1
syn match ocamlCharacter "'\\\d\d\d'\|'\\[\'ntbr]'\|'.'"
syn match ocamlCharacter "'\\x\x\x'"
syn match ocamlCharErr "'\\\d\d'\|'\\\d'"
syn match ocamlCharErr "'\\[^\'ntbr]'"
syn region ocamlString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@Spell
syn match ocamlFunDef "->"
syn match ocamlRefAssign ":="
syn match ocamlTopStop ";;"
syn match ocamlOperator "\^"
syn match ocamlOperator "::"
syn match ocamlOperator "&&"
syn match ocamlOperator "<"
syn match ocamlOperator ">"
syn match ocamlAnyVar "\<_\>"
syn match ocamlKeyChar "|[^\]]"me=e-1
syn match ocamlKeyChar ";"
syn match ocamlKeyChar "\~"
syn match ocamlKeyChar "?"
syn match ocamlKeyChar "\*"
syn match ocamlKeyChar "="
if exists("ocaml_revised")
syn match ocamlErr "<-"
else
syn match ocamlOperator "<-"
endif
syn match ocamlNumber "\<-\=\d\(_\|\d\)*[l|L|n]\?\>"
syn match ocamlNumber "\<-\=0[x|X]\(\x\|_\)\+[l|L|n]\?\>"
syn match ocamlNumber "\<-\=0[o|O]\(\o\|_\)\+[l|L|n]\?\>"
syn match ocamlNumber "\<-\=0[b|B]\([01]\|_\)\+[l|L|n]\?\>"
syn match ocamlFloat "\<-\=\d\(_\|\d\)*\.\?\(_\|\d\)*\([eE][-+]\=\d\(_\|\d\)*\)\=\>"
" Labels
syn match ocamlLabel "\~\(\l\|_\)\(\w\|'\)*"lc=1
syn match ocamlLabel "?\(\l\|_\)\(\w\|'\)*"lc=1
syn region ocamlLabel transparent matchgroup=ocamlLabel start="?(\(\l\|_\)\(\w\|'\)*"lc=2 end=")"me=e-1 contains=ALLBUT,@ocamlContained,ocamlParenErr
" Synchronization
syn sync minlines=50
syn sync maxlines=500
if !exists("ocaml_revised")
syn sync match ocamlDoSync grouphere ocamlDo "\<do\>"
syn sync match ocamlDoSync groupthere ocamlDo "\<done\>"
endif
if exists("ocaml_revised")
syn sync match ocamlEndSync grouphere ocamlEnd "\<\(object\)\>"
else
syn sync match ocamlEndSync grouphere ocamlEnd "\<\(begin\|object\)\>"
endif
syn sync match ocamlEndSync groupthere ocamlEnd "\<end\>"
syn sync match ocamlStructSync grouphere ocamlStruct "\<struct\>"
syn sync match ocamlStructSync groupthere ocamlStruct "\<end\>"
syn sync match ocamlSigSync grouphere ocamlSig "\<sig\>"
syn sync match ocamlSigSync groupthere ocamlSig "\<end\>"
" Define the default highlighting.
" Only when an item doesn't have highlighting yet
hi def link ocamlBraceErr Error
hi def link ocamlBrackErr Error
hi def link ocamlParenErr Error
hi def link ocamlArrErr Error
hi def link ocamlCommentErr Error
hi def link ocamlCountErr Error
hi def link ocamlDoErr Error
hi def link ocamlDoneErr Error
hi def link ocamlEndErr Error
hi def link ocamlThenErr Error
hi def link ocamlCharErr Error
hi def link ocamlErr Error
hi def link ocamlComment Comment
hi def link ocamlModPath Include
hi def link ocamlObject Include
hi def link ocamlModule Include
hi def link ocamlModParam1 Include
hi def link ocamlModType Include
hi def link ocamlMPRestr3 Include
hi def link ocamlFullMod Include
hi def link ocamlModTypeRestr Include
hi def link ocamlWith Include
hi def link ocamlMTDef Include
hi def link ocamlScript Include
hi def link ocamlConstructor Constant
hi def link ocamlVal Keyword
hi def link ocamlModPreRHS Keyword
hi def link ocamlMPRestr2 Keyword
hi def link ocamlKeyword Keyword
hi def link ocamlMethod Include
hi def link ocamlFunDef Keyword
hi def link ocamlRefAssign Keyword
hi def link ocamlKeyChar Keyword
hi def link ocamlAnyVar Keyword
hi def link ocamlTopStop Keyword
hi def link ocamlOperator Keyword
hi def link ocamlBoolean Boolean
hi def link ocamlCharacter Character
hi def link ocamlNumber Number
hi def link ocamlFloat Float
hi def link ocamlString String
hi def link ocamlLabel Identifier
hi def link ocamlType Type
hi def link ocamlTodo Todo
hi def link ocamlEncl Keyword
let b:current_syntax = "ocaml"
" vim: ts=8