mirror of
https://github.com/neovim/neovim.git
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371 lines
16 KiB
VimL
371 lines
16 KiB
VimL
" Vim syntax file
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" Language: OCaml
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" Filenames: *.ml *.mli *.mll *.mly
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" Maintainers: Markus Mottl <markus.mottl@gmail.com>
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" Karl-Heinz Sylla <Karl-Heinz.Sylla@gmd.de>
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" Issac Trotts <ijtrotts@ucdavis.edu>
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" URL: https://github.com/rgrinberg/vim-ocaml
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" Last Change:
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" 2018 Nov 08 - Improved highlighting of operators (Maëlan)
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" 2018 Apr 22 - Improved support for PPX (Andrey Popp)
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" 2018 Mar 16 - Remove raise, lnot and not from keywords (Étienne Millon, "copy")
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" 2017 Apr 11 - Improved matching of negative numbers (MM)
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" 2016 Mar 11 - Improved support for quoted strings (Glen Mével)
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" 2015 Aug 13 - Allow apostrophes in identifiers (Jonathan Chan, Einar Lielmanis)
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" 2015 Jun 17 - Added new "nonrec" keyword (MM)
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" A minor patch was applied to the official version so that object/end
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" can be distinguished from begin/end, which is used for indentation,
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" and folding. (David Baelde)
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" quit when a syntax file was already loaded
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if exists("b:current_syntax") && b:current_syntax == "ocaml"
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finish
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endif
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" ' can be used in OCaml identifiers
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setlocal iskeyword+='
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" OCaml is case sensitive.
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syn case match
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" Access to the method of an object
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syn match ocamlMethod "#"
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" Script headers highlighted like comments
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syn match ocamlComment "^#!.*" contains=@Spell
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" Scripting directives
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syn match ocamlScript "^#\<\(quit\|labels\|warnings\|warn_error\|directory\|remove_directory\|cd\|load\|load_rec\|use\|mod_use\|install_printer\|remove_printer\|require\|list\|ppx\|principal\|predicates\|rectypes\|thread\|trace\|untrace\|untrace_all\|print_depth\|print_length\|camlp4o\|camlp4r\|topfind_log\|topfind_verbose\)\>"
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" lowercase identifier - the standard way to match
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syn match ocamlLCIdentifier /\<\(\l\|_\)\(\w\|'\)*\>/
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syn match ocamlKeyChar "|"
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" Errors
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syn match ocamlBraceErr "}"
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syn match ocamlBrackErr "\]"
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syn match ocamlParenErr ")"
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syn match ocamlArrErr "|]"
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syn match ocamlCommentErr "\*)"
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syn match ocamlCountErr "\<downto\>"
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syn match ocamlCountErr "\<to\>"
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if !exists("ocaml_revised")
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syn match ocamlDoErr "\<do\>"
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endif
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syn match ocamlDoneErr "\<done\>"
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syn match ocamlThenErr "\<then\>"
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" Error-highlighting of "end" without synchronization:
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" as keyword or as error (default)
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if exists("ocaml_noend_error")
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syn match ocamlKeyword "\<end\>"
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else
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syn match ocamlEndErr "\<end\>"
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endif
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" Some convenient clusters
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syn cluster ocamlAllErrs contains=ocamlBraceErr,ocamlBrackErr,ocamlParenErr,ocamlCommentErr,ocamlCountErr,ocamlDoErr,ocamlDoneErr,ocamlEndErr,ocamlThenErr
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syn cluster ocamlAENoParen contains=ocamlBraceErr,ocamlBrackErr,ocamlCommentErr,ocamlCountErr,ocamlDoErr,ocamlDoneErr,ocamlEndErr,ocamlThenErr
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syn cluster ocamlContained contains=ocamlTodo,ocamlPreDef,ocamlModParam,ocamlModParam1,ocamlMPRestr,ocamlMPRestr1,ocamlMPRestr2,ocamlMPRestr3,ocamlModRHS,ocamlFuncWith,ocamlFuncStruct,ocamlModTypeRestr,ocamlModTRWith,ocamlWith,ocamlWithRest,ocamlModType,ocamlFullMod,ocamlVal
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" Enclosing delimiters
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syn region ocamlEncl transparent matchgroup=ocamlKeyword start="(" matchgroup=ocamlKeyword end=")" contains=ALLBUT,@ocamlContained,ocamlParenErr
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syn region ocamlEncl transparent matchgroup=ocamlKeyword start="{" matchgroup=ocamlKeyword end="}" contains=ALLBUT,@ocamlContained,ocamlBraceErr
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syn region ocamlEncl transparent matchgroup=ocamlKeyword start="\[" matchgroup=ocamlKeyword end="\]" contains=ALLBUT,@ocamlContained,ocamlBrackErr
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syn region ocamlEncl transparent matchgroup=ocamlKeyword start="\[|" matchgroup=ocamlKeyword end="|\]" contains=ALLBUT,@ocamlContained,ocamlArrErr
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" Comments
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syn region ocamlComment start="(\*" end="\*)" contains=@Spell,ocamlComment,ocamlTodo
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syn keyword ocamlTodo contained TODO FIXME XXX NOTE
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" Objects
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syn region ocamlEnd matchgroup=ocamlObject start="\<object\>" matchgroup=ocamlObject end="\<end\>" contains=ALLBUT,@ocamlContained,ocamlEndErr
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" Blocks
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if !exists("ocaml_revised")
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syn region ocamlEnd matchgroup=ocamlKeyword start="\<begin\>" matchgroup=ocamlKeyword end="\<end\>" contains=ALLBUT,@ocamlContained,ocamlEndErr
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endif
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" "for"
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syn region ocamlNone matchgroup=ocamlKeyword start="\<for\>" matchgroup=ocamlKeyword end="\<\(to\|downto\)\>" contains=ALLBUT,@ocamlContained,ocamlCountErr
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" "do"
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if !exists("ocaml_revised")
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syn region ocamlDo matchgroup=ocamlKeyword start="\<do\>" matchgroup=ocamlKeyword end="\<done\>" contains=ALLBUT,@ocamlContained,ocamlDoneErr
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endif
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" "if"
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syn region ocamlNone matchgroup=ocamlKeyword start="\<if\>" matchgroup=ocamlKeyword end="\<then\>" contains=ALLBUT,@ocamlContained,ocamlThenErr
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"" PPX nodes
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syn match ocamlPpxIdentifier /\(\[@\{1,3\}\)\@<=\w\+\(\.\w\+\)*/
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syn region ocamlPpx matchgroup=ocamlPpxEncl start="\[@\{1,3\}" contains=TOP end="\]"
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"" Modules
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" "sig"
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syn region ocamlSig matchgroup=ocamlSigEncl start="\<sig\>" matchgroup=ocamlSigEncl end="\<end\>" contains=ALLBUT,@ocamlContained,ocamlEndErr,ocamlModule
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syn region ocamlModSpec matchgroup=ocamlKeyword start="\<module\>" matchgroup=ocamlModule end="\<\u\(\w\|'\)*\>" contained contains=@ocamlAllErrs,ocamlComment skipwhite skipempty nextgroup=ocamlModTRWith,ocamlMPRestr
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" "open"
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syn region ocamlNone matchgroup=ocamlKeyword start="\<open\>" matchgroup=ocamlModule end="\<\u\(\w\|'\)*\( *\. *\u\(\w\|'\)*\)*\>" contains=@ocamlAllErrs,ocamlComment
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" "include"
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syn match ocamlKeyword "\<include\>" skipwhite skipempty nextgroup=ocamlModParam,ocamlFullMod
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" "module" - somewhat complicated stuff ;-)
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syn region ocamlModule matchgroup=ocamlKeyword start="\<module\>" matchgroup=ocamlModule end="\<\u\(\w\|'\)*\>" contains=@ocamlAllErrs,ocamlComment skipwhite skipempty nextgroup=ocamlPreDef
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syn region ocamlPreDef start="."me=e-1 matchgroup=ocamlKeyword end="\l\|=\|)"me=e-1 contained contains=@ocamlAllErrs,ocamlComment,ocamlModParam,ocamlGenMod,ocamlModTypeRestr,ocamlModTRWith nextgroup=ocamlModPreRHS
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syn region ocamlModParam start="([^*]" end=")" contained contains=ocamlGenMod,ocamlModParam1,ocamlSig,ocamlVal
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syn match ocamlModParam1 "\<\u\(\w\|'\)*\>" contained skipwhite skipempty
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syn match ocamlGenMod "()" contained skipwhite skipempty
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syn region ocamlMPRestr start=":" end="."me=e-1 contained contains=@ocamlComment skipwhite skipempty nextgroup=ocamlMPRestr1,ocamlMPRestr2,ocamlMPRestr3
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syn region ocamlMPRestr1 matchgroup=ocamlSigEncl start="\ssig\s\=" matchgroup=ocamlSigEncl end="\<end\>" contained contains=ALLBUT,@ocamlContained,ocamlEndErr,ocamlModule
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syn region ocamlMPRestr2 start="\sfunctor\(\s\|(\)\="me=e-1 matchgroup=ocamlKeyword end="->" contained contains=@ocamlAllErrs,ocamlComment,ocamlModParam,ocamlGenMod skipwhite skipempty nextgroup=ocamlFuncWith,ocamlMPRestr2
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syn match ocamlMPRestr3 "\w\(\w\|'\)*\( *\. *\w\(\w\|'\)*\)*" contained
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syn match ocamlModPreRHS "=" contained skipwhite skipempty nextgroup=ocamlModParam,ocamlFullMod
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syn keyword ocamlKeyword val
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syn region ocamlVal matchgroup=ocamlKeyword start="\<val\>" matchgroup=ocamlLCIdentifier end="\<\l\(\w\|'\)*\>" contains=@ocamlAllErrs,ocamlComment,ocamlFullMod skipwhite skipempty nextgroup=ocamlMPRestr
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syn region ocamlModRHS start="." end=". *\w\|([^*]"me=e-2 contained contains=ocamlComment skipwhite skipempty nextgroup=ocamlModParam,ocamlFullMod
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syn match ocamlFullMod "\<\u\(\w\|'\)*\( *\. *\u\(\w\|'\)*\)*" contained skipwhite skipempty nextgroup=ocamlFuncWith
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syn region ocamlFuncWith start="([^*)]"me=e-1 end=")" contained contains=ocamlComment,ocamlWith,ocamlFuncStruct skipwhite skipempty nextgroup=ocamlFuncWith
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syn region ocamlFuncStruct matchgroup=ocamlStructEncl start="[^a-zA-Z]struct\>"hs=s+1 matchgroup=ocamlStructEncl end="\<end\>" contains=ALLBUT,@ocamlContained,ocamlEndErr
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syn match ocamlModTypeRestr "\<\w\(\w\|'\)*\( *\. *\w\(\w\|'\)*\)*\>" contained
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syn region ocamlModTRWith start=":\s*("hs=s+1 end=")" contained contains=@ocamlAENoParen,ocamlWith
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syn match ocamlWith "\<\(\u\(\w\|'\)* *\. *\)*\w\(\w\|'\)*\>" contained skipwhite skipempty nextgroup=ocamlWithRest
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syn region ocamlWithRest start="[^)]" end=")"me=e-1 contained contains=ALLBUT,@ocamlContained
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" "struct"
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syn region ocamlStruct matchgroup=ocamlStructEncl start="\<\(module\s\+\)\=struct\>" matchgroup=ocamlStructEncl end="\<end\>" contains=ALLBUT,@ocamlContained,ocamlEndErr
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" "module type"
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syn region ocamlKeyword start="\<module\>\s*\<type\>\(\s*\<of\>\)\=" matchgroup=ocamlModule end="\<\w\(\w\|'\)*\>" contains=ocamlComment skipwhite skipempty nextgroup=ocamlMTDef
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syn match ocamlMTDef "=\s*\w\(\w\|'\)*\>"hs=s+1,me=s+1 skipwhite skipempty nextgroup=ocamlFullMod
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" Quoted strings
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syn region ocamlString matchgroup=ocamlQuotedStringDelim start="{\z\([a-z_]*\)|" end="|\z1}" contains=@Spell
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syn keyword ocamlKeyword and as assert class
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syn keyword ocamlKeyword constraint else
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syn keyword ocamlKeyword exception external fun
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syn keyword ocamlKeyword in inherit initializer
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syn keyword ocamlKeyword lazy let match
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syn keyword ocamlKeyword method mutable new nonrec of
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syn keyword ocamlKeyword parser private rec
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syn keyword ocamlKeyword try type
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syn keyword ocamlKeyword virtual when while with
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if exists("ocaml_revised")
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syn keyword ocamlKeyword do value
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syn keyword ocamlBoolean True False
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else
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syn keyword ocamlKeyword function
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syn keyword ocamlBoolean true false
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endif
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syn keyword ocamlType array bool char exn float format format4
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syn keyword ocamlType int int32 int64 lazy_t list nativeint option
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syn keyword ocamlType bytes string unit
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syn match ocamlConstructor "(\s*)"
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syn match ocamlConstructor "\[\s*\]"
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syn match ocamlConstructor "\[|\s*>|]"
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syn match ocamlConstructor "\[<\s*>\]"
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syn match ocamlConstructor "\u\(\w\|'\)*\>"
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" Polymorphic variants
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syn match ocamlConstructor "`\w\(\w\|'\)*\>"
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" Module prefix
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syn match ocamlModPath "\u\(\w\|'\)* *\."he=e-1
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syn match ocamlCharacter "'\\\d\d\d'\|'\\[\'ntbr]'\|'.'"
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syn match ocamlCharacter "'\\x\x\x'"
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syn match ocamlCharErr "'\\\d\d'\|'\\\d'"
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syn match ocamlCharErr "'\\[^\'ntbr]'"
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syn region ocamlString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@Spell
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syn match ocamlTopStop ";;"
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syn match ocamlAnyVar "\<_\>"
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syn match ocamlKeyChar "|[^\]]"me=e-1
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syn match ocamlKeyChar ";"
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syn match ocamlKeyChar "\~"
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syn match ocamlKeyChar "?"
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"" Operators
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" The grammar of operators is found there:
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" https://caml.inria.fr/pub/docs/manual-ocaml/names.html#operator-name
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" https://caml.inria.fr/pub/docs/manual-ocaml/extn.html#s:ext-ops
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" https://caml.inria.fr/pub/docs/manual-ocaml/extn.html#s:index-operators
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" =, *, < and > are both operator names and keywords, we let the user choose how
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" to display them (has to be declared before regular infix operators):
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syn match ocamlEqual "="
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syn match ocamlStar "*"
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syn match ocamlAngle "<"
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syn match ocamlAngle ">"
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" Custom indexing operators:
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syn match ocamlIndexingOp "\.[~?!:|&$%=>@^/*+-][~?!.:|&$%<=>@^*/+-]*\(()\|\[]\|{}\)\(<-\)\?"
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" Extension operators (has to be declared before regular infix operators):
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syn match ocamlExtensionOp "#[#~?!.:|&$%<=>@^*/+-]\+"
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" Infix and prefix operators:
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syn match ocamlPrefixOp "![~?!.:|&$%<=>@^*/+-]*"
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syn match ocamlPrefixOp "[~?][~?!.:|&$%<=>@^*/+-]\+"
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syn match ocamlInfixOp "[&$%@^/+-][~?!.:|&$%<=>@^*/+-]*"
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syn match ocamlInfixOp "[|<=>*][~?!.:|&$%<=>@^*/+-]\+"
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syn match ocamlInfixOp "#[~?!.:|&$%<=>@^*/+-]\+#\@!"
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syn match ocamlInfixOp "!=[~?!.:|&$%<=>@^*/+-]\@!"
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syn keyword ocamlInfixOpKeyword asr land lor lsl lsr lxor mod or
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" := is technically an infix operator, but we may want to show it as a keyword
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" (somewhat analogously to = for let‐bindings and <- for assignations):
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syn match ocamlRefAssign ":="
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" :: is technically not an operator, but we may want to show it as such:
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syn match ocamlCons "::"
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" -> and <- are keywords, not operators (but can appear in longer operators):
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syn match ocamlArrow "->[~?!.:|&$%<=>@^*/+-]\@!"
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if exists("ocaml_revised")
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syn match ocamlErr "<-[~?!.:|&$%<=>@^*/+-]\@!"
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else
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syn match ocamlKeyChar "<-[~?!.:|&$%<=>@^*/+-]\@!"
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endif
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syn match ocamlNumber "-\=\<\d\(_\|\d\)*[l|L|n]\?\>"
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syn match ocamlNumber "-\=\<0[x|X]\(\x\|_\)\+[l|L|n]\?\>"
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syn match ocamlNumber "-\=\<0[o|O]\(\o\|_\)\+[l|L|n]\?\>"
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syn match ocamlNumber "-\=\<0[b|B]\([01]\|_\)\+[l|L|n]\?\>"
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syn match ocamlFloat "-\=\<\d\(_\|\d\)*\.\?\(_\|\d\)*\([eE][-+]\=\d\(_\|\d\)*\)\=\>"
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" Labels
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syn match ocamlLabel "\~\(\l\|_\)\(\w\|'\)*"lc=1
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syn match ocamlLabel "?\(\l\|_\)\(\w\|'\)*"lc=1
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syn region ocamlLabel transparent matchgroup=ocamlLabel start="[~?](\(\l\|_\)\(\w\|'\)*"lc=2 end=")"me=e-1 contains=ALLBUT,@ocamlContained,ocamlParenErr
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" Synchronization
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syn sync minlines=50
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syn sync maxlines=500
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if !exists("ocaml_revised")
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syn sync match ocamlDoSync grouphere ocamlDo "\<do\>"
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syn sync match ocamlDoSync groupthere ocamlDo "\<done\>"
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endif
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if exists("ocaml_revised")
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syn sync match ocamlEndSync grouphere ocamlEnd "\<\(object\)\>"
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else
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syn sync match ocamlEndSync grouphere ocamlEnd "\<\(begin\|object\)\>"
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endif
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syn sync match ocamlEndSync groupthere ocamlEnd "\<end\>"
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syn sync match ocamlStructSync grouphere ocamlStruct "\<struct\>"
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syn sync match ocamlStructSync groupthere ocamlStruct "\<end\>"
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syn sync match ocamlSigSync grouphere ocamlSig "\<sig\>"
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syn sync match ocamlSigSync groupthere ocamlSig "\<end\>"
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" Define the default highlighting.
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" Only when an item doesn't have highlighting yet
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hi def link ocamlBraceErr Error
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hi def link ocamlBrackErr Error
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hi def link ocamlParenErr Error
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hi def link ocamlArrErr Error
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hi def link ocamlCommentErr Error
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hi def link ocamlCountErr Error
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hi def link ocamlDoErr Error
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hi def link ocamlDoneErr Error
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hi def link ocamlEndErr Error
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hi def link ocamlThenErr Error
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hi def link ocamlCharErr Error
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hi def link ocamlErr Error
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hi def link ocamlComment Comment
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hi def link ocamlModPath Include
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hi def link ocamlObject Include
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hi def link ocamlModule Include
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hi def link ocamlModParam1 Include
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hi def link ocamlModType Include
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hi def link ocamlMPRestr3 Include
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hi def link ocamlFullMod Include
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hi def link ocamlModTypeRestr Include
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hi def link ocamlWith Include
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hi def link ocamlMTDef Include
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hi def link ocamlSigEncl ocamlModule
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hi def link ocamlStructEncl ocamlModule
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hi def link ocamlScript Include
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hi def link ocamlConstructor Constant
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hi def link ocamlVal Keyword
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hi def link ocamlModPreRHS Keyword
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hi def link ocamlMPRestr2 Keyword
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hi def link ocamlKeyword Keyword
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hi def link ocamlMethod Include
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hi def link ocamlKeyChar Keyword
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hi def link ocamlAnyVar Keyword
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hi def link ocamlTopStop Keyword
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hi def link ocamlRefAssign ocamlKeyChar
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hi def link ocamlEqual ocamlKeyChar
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hi def link ocamlStar ocamlInfixOp
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hi def link ocamlAngle ocamlInfixOp
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hi def link ocamlCons ocamlInfixOp
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hi def link ocamlPrefixOp ocamlOperator
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hi def link ocamlInfixOp ocamlOperator
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hi def link ocamlExtensionOp ocamlOperator
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hi def link ocamlIndexingOp ocamlOperator
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if exists("ocaml_highlight_operators")
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hi def link ocamlInfixOpKeyword ocamlOperator
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hi def link ocamlOperator Operator
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else
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hi def link ocamlInfixOpKeyword Keyword
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endif
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hi def link ocamlBoolean Boolean
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hi def link ocamlCharacter Character
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hi def link ocamlNumber Number
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hi def link ocamlFloat Float
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hi def link ocamlString String
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hi def link ocamlQuotedStringDelim Identifier
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hi def link ocamlLabel Identifier
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hi def link ocamlType Type
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hi def link ocamlTodo Todo
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hi def link ocamlEncl Keyword
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hi def link ocamlPpxEncl ocamlEncl
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let b:current_syntax = "ocaml"
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" vim: ts=8
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