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ocaml.vim
" 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: https://github.com/ocaml/vim-ocaml " Last Change: " 2018 Nov 08 - Improved highlighting of operators (Maëlan) " 2018 Apr 22 - Improved support for PPX (Andrey Popp) " 2018 Mar 16 - Remove raise, lnot and not from keywords (Étienne Millon, "copy") " 2017 Apr 11 - Improved matching of negative numbers (MM) " 2016 Mar 11 - Improved support for quoted strings (Glen Mével) " 2015 Aug 13 - Allow apostrophes in identifiers (Jonathan Chan, Einar Lielmanis) " 2015 Jun 17 - Added new "nonrec" keyword (MM) " 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 let s:keepcpo = &cpo set cpo&vim " ' can be used in OCaml identifiers setlocal iskeyword+=' " ` is part of the name of polymorphic variants setlocal iskeyword+=` " 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 "^#\<\(quit\|labels\|warnings\|warn_error\|directory\|remove_directory\|cd\|load\|load_rec\|use\|mod_use\|install_printer\|remove_printer\|require\|list\|ppx\|principal\|predicates\|rectypes\|thread\|trace\|untrace\|untrace_all\|print_depth\|print_length\|camlp4o\|camlp4r\|topfind_log\|topfind_verbose\)\>" " 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,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 "" PPX nodes syn match ocamlPpxIdentifier /\(\[@\{1,3\}\)\@<=\w\+\(\.\w\+\)*/ syn region ocamlPpx matchgroup=ocamlPpxEncl start="\[@\{1,3\}" contains=TOP end="\]" "" Modules " "sig" syn region ocamlSig matchgroup=ocamlSigEncl start="\<sig\>" matchgroup=ocamlSigEncl 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 match ocamlKeyword "\<open\>" skipwhite skipempty nextgroup=ocamlFullMod " "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,ocamlGenMod,ocamlModTypeRestr,ocamlModTRWith nextgroup=ocamlModPreRHS syn region ocamlModParam start="([^*]" end=")" contained contains=ocamlGenMod,ocamlModParam1,ocamlSig,ocamlVal syn match ocamlModParam1 "\<\u\(\w\|'\)*\>" contained skipwhite skipempty syn match ocamlGenMod "()" contained skipwhite skipempty syn region ocamlMPRestr start=":" end="."me=e-1 contained contains=@ocamlComment skipwhite skipempty nextgroup=ocamlMPRestr1,ocamlMPRestr2,ocamlMPRestr3 syn region ocamlMPRestr1 matchgroup=ocamlSigEncl start="\ssig\s\=" matchgroup=ocamlSigEncl 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,ocamlGenMod 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=ocamlStructEncl start="[^a-zA-Z]struct\>"hs=s+1 matchgroup=ocamlStructEncl 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=ocamlStructEncl start="\<\(module\s\+\)\=struct\>" matchgroup=ocamlStructEncl 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 " Quoted strings syn region ocamlString matchgroup=ocamlQuotedStringDelim start="{\z\([a-z_]*\)|" end="|\z1}" contains=@Spell 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 lazy let match syn keyword ocamlKeyword method mutable new nonrec of syn keyword ocamlKeyword parser private 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 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 bytes string unit 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 ocamlTopStop ";;" syn match ocamlAnyVar "\<_\>" syn match ocamlKeyChar "|[^\]]"me=e-1 syn match ocamlKeyChar ";" syn match ocamlKeyChar "\~" syn match ocamlKeyChar "?" "" Operators " The grammar of operators is found there: " https://caml.inria.fr/pub/docs/manual-ocaml/names.html#operator-name " https://caml.inria.fr/pub/docs/manual-ocaml/extn.html#s:ext-ops " https://caml.inria.fr/pub/docs/manual-ocaml/extn.html#s:index-operators " =, *, < and > are both operator names and keywords, we let the user choose how " to display them (has to be declared before regular infix operators): syn match ocamlEqual "=" syn match ocamlStar "*" syn match ocamlAngle "<" syn match ocamlAngle ">" " Custom indexing operators: syn region ocamlIndexing matchgroup=ocamlIndexingOp \ start="\.[~?!:|&$%=>@^/*+-][~?!.:|&$%<=>@^*/+-]*\_s*(" \ end=")\(\_s*<-\)\?" \ contains=ALLBUT,@ocamlContained,ocamlParenErr syn region ocamlIndexing matchgroup=ocamlIndexingOp \ start="\.[~?!:|&$%=>@^/*+-][~?!.:|&$%<=>@^*/+-]*\_s*\[" \ end="]\(\_s*<-\)\?" \ contains=ALLBUT,@ocamlContained,ocamlBrackErr syn region ocamlIndexing matchgroup=ocamlIndexingOp \ start="\.[~?!:|&$%=>@^/*+-][~?!.:|&$%<=>@^*/+-]*\_s*{" \ end="}\(\_s*<-\)\?" \ contains=ALLBUT,@ocamlContained,ocamlBraceErr " Extension operators (has to be declared before regular infix operators): syn match ocamlExtensionOp "#[#~?!.:|&$%<=>@^*/+-]\+" " Infix and prefix operators: syn match ocamlPrefixOp "![~?!.:|&$%<=>@^*/+-]*" syn match ocamlPrefixOp "[~?][~?!.:|&$%<=>@^*/+-]\+" syn match ocamlInfixOp "[&$%@^/+-][~?!.:|&$%<=>@^*/+-]*" syn match ocamlInfixOp "[|<=>*][~?!.:|&$%<=>@^*/+-]\+" syn match ocamlInfixOp "#[~?!.:|&$%<=>@^*/+-]\+#\@!" syn match ocamlInfixOp "!=[~?!.:|&$%<=>@^*/+-]\@!" syn keyword ocamlInfixOpKeyword asr land lor lsl lsr lxor mod or " := is technically an infix operator, but we may want to show it as a keyword " (somewhat analogously to = for let‐bindings and <- for assignations): syn match ocamlRefAssign ":=" " :: is technically not an operator, but we may want to show it as such: syn match ocamlCons "::" " -> and <- are keywords, not operators (but can appear in longer operators): syn match ocamlArrow "->[~?!.:|&$%<=>@^*/+-]\@!" if exists("ocaml_revised") syn match ocamlErr "<-[~?!.:|&$%<=>@^*/+-]\@!" else syn match ocamlKeyChar "<-[~?!.:|&$%<=>@^*/+-]\@!" 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. 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 ocamlGenMod Include hi def link ocamlModType Include hi def link ocamlMPRestr3 Include hi def link ocamlFullMod Include hi def link ocamlFuncWith Include hi def link ocamlModParam Include hi def link ocamlModTypeRestr Include hi def link ocamlWith Include hi def link ocamlMTDef Include hi def link ocamlSigEncl ocamlModule hi def link ocamlStructEncl ocamlModule 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 ocamlArrow Keyword hi def link ocamlKeyChar Keyword hi def link ocamlAnyVar Keyword hi def link ocamlTopStop Keyword hi def link ocamlRefAssign ocamlKeyChar hi def link ocamlEqual ocamlKeyChar hi def link ocamlStar ocamlInfixOp hi def link ocamlAngle ocamlInfixOp hi def link ocamlCons ocamlInfixOp hi def link ocamlPrefixOp ocamlOperator hi def link ocamlInfixOp ocamlOperator hi def link ocamlExtensionOp ocamlOperator hi def link ocamlIndexingOp ocamlOperator if exists("ocaml_highlight_operators") hi def link ocamlInfixOpKeyword ocamlOperator hi def link ocamlOperator Operator else hi def link ocamlInfixOpKeyword Keyword endif 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 ocamlQuotedStringDelim Identifier hi def link ocamlLabel Identifier hi def link ocamlType Type hi def link ocamlTodo Todo hi def link ocamlEncl Keyword hi def link ocamlPpxEncl ocamlEncl let b:current_syntax = "ocaml" let &cpo = s:keepcpo unlet s:keepcpo " vim: ts=8
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