" Karl-Heinz Sylla
" Issac Trotts
" 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)
" 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") && 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 "\"
syn match ocamlCountErr "\"
if !exists("ocaml_revised")
syn match ocamlDoErr "\"
endif
syn match ocamlDoneErr "\"
syn match ocamlThenErr "\"
" Error-highlighting of "end" without synchronization:
" as keyword or as error (default)
if exists("ocaml_noend_error")
syn match ocamlKeyword "\"
else
syn match ocamlEndErr "\"
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="\" matchgroup=ocamlObject end="\" contains=ALLBUT,@ocamlContained,ocamlEndErr
" Blocks
if !exists("ocaml_revised")
syn region ocamlEnd matchgroup=ocamlKeyword start="\" matchgroup=ocamlKeyword end="\" contains=ALLBUT,@ocamlContained,ocamlEndErr
endif
" "for"
syn region ocamlNone matchgroup=ocamlKeyword start="\" matchgroup=ocamlKeyword end="\<\(to\|downto\)\>" contains=ALLBUT,@ocamlContained,ocamlCountErr
" "do"
if !exists("ocaml_revised")
syn region ocamlDo matchgroup=ocamlKeyword start="\" matchgroup=ocamlKeyword end="\" contains=ALLBUT,@ocamlContained,ocamlDoneErr
endif
" "if"
syn region ocamlNone matchgroup=ocamlKeyword start="\" matchgroup=ocamlKeyword end="\" contains=ALLBUT,@ocamlContained,ocamlThenErr
"" Modules
" "sig"
syn region ocamlSig matchgroup=ocamlModule start="\" matchgroup=ocamlModule end="\" contains=ALLBUT,@ocamlContained,ocamlEndErr,ocamlModule
syn region ocamlModSpec matchgroup=ocamlKeyword start="\" matchgroup=ocamlModule end="\<\u\(\w\|'\)*\>" contained contains=@ocamlAllErrs,ocamlComment skipwhite skipempty nextgroup=ocamlModTRWith,ocamlMPRestr
" "open"
syn region ocamlNone matchgroup=ocamlKeyword start="\" matchgroup=ocamlModule end="\<\u\(\w\|'\)*\( *\. *\u\(\w\|'\)*\)*\>" contains=@ocamlAllErrs,ocamlComment
" "include"
syn match ocamlKeyword "\" skipwhite skipempty nextgroup=ocamlModParam,ocamlFullMod
" "module" - somewhat complicated stuff ;-)
syn region ocamlModule matchgroup=ocamlKeyword start="\" 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="\" 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="\" 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="\" 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="\" contains=ALLBUT,@ocamlContained,ocamlEndErr
" "module type"
syn region ocamlKeyword start="\\s*\\(\s*\\)\=" 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 "\"
syn sync match ocamlDoSync groupthere ocamlDo "\"
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 "\"
syn sync match ocamlStructSync grouphere ocamlStruct "\"
syn sync match ocamlStructSync groupthere ocamlStruct "\"
syn sync match ocamlSigSync grouphere ocamlSig "\"
syn sync match ocamlSigSync groupthere ocamlSig "\"
" 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_ocaml_syntax_inits")
if version < 508
let did_ocaml_syntax_inits = 1
command -nargs=+ HiLink hi link
else
command -nargs=+ HiLink hi def link
endif
HiLink ocamlBraceErr Error
HiLink ocamlBrackErr Error
HiLink ocamlParenErr Error
HiLink ocamlArrErr Error
HiLink ocamlCommentErr Error
HiLink ocamlCountErr Error
HiLink ocamlDoErr Error
HiLink ocamlDoneErr Error
HiLink ocamlEndErr Error
HiLink ocamlThenErr Error
HiLink ocamlCharErr Error
HiLink ocamlErr Error
HiLink ocamlComment Comment
HiLink ocamlModPath Include
HiLink ocamlObject Include
HiLink ocamlModule Include
HiLink ocamlModParam1 Include
HiLink ocamlModType Include
HiLink ocamlMPRestr3 Include
HiLink ocamlFullMod Include
HiLink ocamlModTypeRestr Include
HiLink ocamlWith Include
HiLink ocamlMTDef Include
HiLink ocamlScript Include
HiLink ocamlConstructor Constant
HiLink ocamlVal Keyword
HiLink ocamlModPreRHS Keyword
HiLink ocamlMPRestr2 Keyword
HiLink ocamlKeyword Keyword
HiLink ocamlMethod Include
HiLink ocamlFunDef Keyword
HiLink ocamlRefAssign Keyword
HiLink ocamlKeyChar Keyword
HiLink ocamlAnyVar Keyword
HiLink ocamlTopStop Keyword
HiLink ocamlOperator Keyword
HiLink ocamlBoolean Boolean
HiLink ocamlCharacter Character
HiLink ocamlNumber Number
HiLink ocamlFloat Float
HiLink ocamlString String
HiLink ocamlLabel Identifier
HiLink ocamlType Type
HiLink ocamlTodo Todo
HiLink ocamlEncl Keyword
delcommand HiLink
endif
let b:current_syntax = "ocaml"
" vim: ts=8