mirror of
https://github.com/neovim/neovim.git
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220 lines
9.2 KiB
VimL
220 lines
9.2 KiB
VimL
" Vim syntax file
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" Language: SML
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" Filenames: *.sml *.sig
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" Maintainers: Markus Mottl <markus.mottl@gmail.com>
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" Fabrizio Zeno Cornelli <zeno@filibusta.crema.unimi.it>
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" Last Change: 2021 Oct 04
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" 2015 Aug 31 - Fixed opening of modules (Ramana Kumar)
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" 2006 Oct 23 - Fixed character highlighting bug (MM)
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" quit when a syntax file was already loaded
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if exists("b:current_syntax")
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finish
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endif
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" Disable spell checking of syntax.
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syn spell notoplevel
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" SML is case sensitive.
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syn case match
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" lowercase identifier - the standard way to match
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syn match smlLCIdentifier /\<\(\l\|_\)\(\w\|'\)*\>/
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syn match smlKeyChar "|"
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" Errors
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syn match smlBraceErr "}"
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syn match smlBrackErr "\]"
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syn match smlParenErr ")"
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syn match smlCommentErr "\*)"
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syn match smlThenErr "\<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("sml_noend_error")
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syn match smlKeyword "\<end\>"
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else
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syn match smlEndErr "\<end\>"
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endif
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" Some convenient clusters
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syn cluster smlAllErrs contains=smlBraceErr,smlBrackErr,smlParenErr,smlCommentErr,smlEndErr,smlThenErr
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syn cluster smlAENoParen contains=smlBraceErr,smlBrackErr,smlCommentErr,smlEndErr,smlThenErr
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syn cluster smlContained contains=smlTodo,smlPreDef,smlModParam,smlModParam1,smlPreMPRestr,smlMPRestr,smlMPRestr1,smlMPRestr2,smlMPRestr3,smlModRHS,smlFuncWith,smlFuncStruct,smlModTypeRestr,smlModTRWith,smlWith,smlWithRest,smlModType,smlFullMod
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" Enclosing delimiters
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syn region smlEncl transparent matchgroup=smlKeyword start="(" matchgroup=smlKeyword end=")" contains=ALLBUT,@smlContained,smlParenErr
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syn region smlEncl transparent matchgroup=smlKeyword start="{" matchgroup=smlKeyword end="}" contains=ALLBUT,@smlContained,smlBraceErr
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syn region smlEncl transparent matchgroup=smlKeyword start="\[" matchgroup=smlKeyword end="\]" contains=ALLBUT,@smlContained,smlBrackErr
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syn region smlEncl transparent matchgroup=smlKeyword start="#\[" matchgroup=smlKeyword end="\]" contains=ALLBUT,@smlContained,smlBrackErr
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" Comments
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syn region smlComment start="(\*" end="\*)" contains=smlComment,smlTodo,@Spell
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syn keyword smlTodo contained TODO FIXME XXX
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" let
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syn region smlEnd matchgroup=smlKeyword start="\<let\>" matchgroup=smlKeyword end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr
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" local
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syn region smlEnd matchgroup=smlKeyword start="\<local\>" matchgroup=smlKeyword end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr
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" abstype
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syn region smlNone matchgroup=smlKeyword start="\<abstype\>" matchgroup=smlKeyword end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr
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" begin
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syn region smlEnd matchgroup=smlKeyword start="\<begin\>" matchgroup=smlKeyword end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr
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" if
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syn region smlNone matchgroup=smlKeyword start="\<if\>" matchgroup=smlKeyword end="\<then\>" contains=ALLBUT,@smlContained,smlThenErr
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"" Modules
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" "struct"
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syn region smlStruct matchgroup=smlModule start="\<struct\>" matchgroup=smlModule end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr
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" "sig"
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syn region smlSig matchgroup=smlModule start="\<sig\>" matchgroup=smlModule end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr,smlModule
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syn region smlModSpec matchgroup=smlKeyword start="\<structure\>" matchgroup=smlModule end="\<\u\(\w\|'\)*\>" contained contains=@smlAllErrs,smlComment skipwhite skipempty nextgroup=smlModTRWith,smlMPRestr
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" "open"
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syn region smlNone matchgroup=smlKeyword start="\<open\>" matchgroup=smlModule end="\<\w\(\w\|'\)*\(\.\w\(\w\|'\)*\)*\>" contains=@smlAllErrs,smlComment
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" "structure" - somewhat complicated stuff ;-)
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syn region smlModule matchgroup=smlKeyword start="\<\(structure\|functor\)\>" matchgroup=smlModule end="\<\u\(\w\|'\)*\>" contains=@smlAllErrs,smlComment skipwhite skipempty nextgroup=smlPreDef
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syn region smlPreDef start="."me=e-1 matchgroup=smlKeyword end="\l\|="me=e-1 contained contains=@smlAllErrs,smlComment,smlModParam,smlModTypeRestr,smlModTRWith nextgroup=smlModPreRHS
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syn region smlModParam start="([^*]" end=")" contained contains=@smlAENoParen,smlModParam1
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syn match smlModParam1 "\<\u\(\w\|'\)*\>" contained skipwhite skipempty nextgroup=smlPreMPRestr
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syn region smlPreMPRestr start="."me=e-1 end=")"me=e-1 contained contains=@smlAllErrs,smlComment,smlMPRestr,smlModTypeRestr
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syn region smlMPRestr start=":" end="."me=e-1 contained contains=@smlComment skipwhite skipempty nextgroup=smlMPRestr1,smlMPRestr2,smlMPRestr3
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syn region smlMPRestr1 matchgroup=smlModule start="\ssig\s\=" matchgroup=smlModule end="\<end\>" contained contains=ALLBUT,@smlContained,smlEndErr,smlModule
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syn region smlMPRestr2 start="\sfunctor\(\s\|(\)\="me=e-1 matchgroup=smlKeyword end="->" contained contains=@smlAllErrs,smlComment,smlModParam skipwhite skipempty nextgroup=smlFuncWith
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syn match smlMPRestr3 "\w\(\w\|'\)*\(\.\w\(\w\|'\)*\)*" contained
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syn match smlModPreRHS "=" contained skipwhite skipempty nextgroup=smlModParam,smlFullMod
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syn region smlModRHS start="." end=".\w\|([^*]"me=e-2 contained contains=smlComment skipwhite skipempty nextgroup=smlModParam,smlFullMod
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syn match smlFullMod "\<\u\(\w\|'\)*\(\.\u\(\w\|'\)*\)*" contained skipwhite skipempty nextgroup=smlFuncWith
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syn region smlFuncWith start="([^*]"me=e-1 end=")" contained contains=smlComment,smlWith,smlFuncStruct
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syn region smlFuncStruct matchgroup=smlModule start="[^a-zA-Z]struct\>"hs=s+1 matchgroup=smlModule end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr
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syn match smlModTypeRestr "\<\w\(\w\|'\)*\(\.\w\(\w\|'\)*\)*\>" contained
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syn region smlModTRWith start=":\s*("hs=s+1 end=")" contained contains=@smlAENoParen,smlWith
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syn match smlWith "\<\(\u\(\w\|'\)*\.\)*\w\(\w\|'\)*\>" contained skipwhite skipempty nextgroup=smlWithRest
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syn region smlWithRest start="[^)]" end=")"me=e-1 contained contains=ALLBUT,@smlContained
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" "signature"
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syn region smlKeyword start="\<signature\>" matchgroup=smlModule end="\<\w\(\w\|'\)*\>" contains=smlComment skipwhite skipempty nextgroup=smlMTDef
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syn match smlMTDef "=\s*\w\(\w\|'\)*\>"hs=s+1,me=s
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syn keyword smlKeyword and andalso case
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syn keyword smlKeyword datatype else eqtype
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syn keyword smlKeyword exception fn fun handle
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syn keyword smlKeyword in infix infixl infixr
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syn keyword smlKeyword match nonfix of orelse
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syn keyword smlKeyword raise handle type
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syn keyword smlKeyword val where while with withtype
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syn keyword smlType bool char exn int list option
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syn keyword smlType real string unit
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syn keyword smlOperator div mod not or quot rem
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syn keyword smlBoolean true false
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syn match smlConstructor "(\s*)"
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syn match smlConstructor "\[\s*\]"
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syn match smlConstructor "#\[\s*\]"
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syn match smlConstructor "\u\(\w\|'\)*\>"
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" Module prefix
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syn match smlModPath "\u\(\w\|'\)*\."he=e-1
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syn match smlCharacter +#"\\""\|#"."\|#"\\\d\d\d"+
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syn match smlCharErr +#"\\\d\d"\|#"\\\d"+
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syn region smlString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@Spell
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syn match smlFunDef "=>"
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syn match smlRefAssign ":="
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syn match smlTopStop ";;"
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syn match smlOperator "\^"
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syn match smlOperator "::"
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syn match smlAnyVar "\<_\>"
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syn match smlKeyChar "!"
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syn match smlKeyChar ";"
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syn match smlKeyChar "\*"
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syn match smlKeyChar "="
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syn match smlNumber "\<-\=\d\+\>"
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syn match smlNumber "\<-\=0[x|X]\x\+\>"
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syn match smlReal "\<-\=\d\+\.\d*\([eE][-+]\=\d\+\)\=[fl]\=\>"
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" Synchronization
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syn sync minlines=20
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syn sync maxlines=500
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syn sync match smlEndSync grouphere smlEnd "\<begin\>"
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syn sync match smlEndSync groupthere smlEnd "\<end\>"
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syn sync match smlStructSync grouphere smlStruct "\<struct\>"
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syn sync match smlStructSync groupthere smlStruct "\<end\>"
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syn sync match smlSigSync grouphere smlSig "\<sig\>"
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syn sync match smlSigSync groupthere smlSig "\<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 smlBraceErr Error
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hi def link smlBrackErr Error
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hi def link smlParenErr Error
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hi def link smlCommentErr Error
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hi def link smlEndErr Error
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hi def link smlThenErr Error
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hi def link smlCharErr Error
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hi def link smlComment Comment
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hi def link smlModPath Include
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hi def link smlModule Include
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hi def link smlModParam1 Include
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hi def link smlModType Include
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hi def link smlMPRestr3 Include
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hi def link smlFullMod Include
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hi def link smlModTypeRestr Include
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hi def link smlWith Include
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hi def link smlMTDef Include
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hi def link smlConstructor Constant
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hi def link smlModPreRHS Keyword
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hi def link smlMPRestr2 Keyword
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hi def link smlKeyword Keyword
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hi def link smlFunDef Keyword
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hi def link smlRefAssign Keyword
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hi def link smlKeyChar Keyword
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hi def link smlAnyVar Keyword
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hi def link smlTopStop Keyword
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hi def link smlOperator Keyword
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hi def link smlBoolean Boolean
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hi def link smlCharacter Character
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hi def link smlNumber Number
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hi def link smlReal Float
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hi def link smlString String
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hi def link smlType Type
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hi def link smlTodo Todo
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hi def link smlEncl Keyword
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let b:current_syntax = "sml"
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" vim: ts=8
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