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" Vim syntax file
" Language:    IDL (Interface Description Language)
" Created By:  Jody Goldberg
" Maintainer:  Michael Geddes <[email protected]>
" Last Change:  Thu Apr 13 2006


" This is an experiment.  IDL's structure is simple enough to permit a full
" grammar based approach to rather than using a few heuristics.  The result
" is large and somewhat repetative but seems to work.

" There are some Microsoft extensions to idl files that are here.  Some of
" them are disabled by defining idl_no_ms_extensions.
"
" The more complex of the extensions are disabled by defining idl_no_extensions.
"
" History:
" 2.0: Michael's new version
" 2.1: Support for Vim 7 spell (Anduin Withers)
"      

if exists("b:current_syntax")
  finish
endif

if exists("idlsyntax_showerror")
  syn match idlError +\S+ skipwhite skipempty nextgroup=idlError
endif

syn region idlCppQuote start='\<cpp_quote\s*(' end=')' contains=idlString

" Misc basic
syn match   idlId          contained "[a-zA-Z][a-zA-Z0-9_]*" skipwhite skipempty nextgroup=idlEnumComma,idlEnumNumber
syn match   idlEnumComma   contained ","
syn match   idlEnumNumber  contained "=" skipwhite skipempty nextgroup=idlString,idlLiteral
syn match   idlSemiColon   contained ";"
syn match   idlCommaArg    contained ","                      skipempty skipwhite nextgroup=idlSimpDecl
syn region  idlArraySize1  contained start=:\[: end=:\]:      skipempty skipwhite nextgroup=idlArraySize1,idlError,idlSemiColon,idlCommaArg contains=idlArraySize1,idlLiteral
syn match   idlSimpDecl    contained "[a-zA-Z][a-zA-Z0-9_]*"  skipempty skipwhite nextgroup=idlError,idlSemiColon,idlCommaArg,idlArraySize1
syn region  idlString      contained start=+"+  skip=+\\\(\\\\\)*"+  end=+"+ contains=@Spell
syn match   idlLiteral     contained "[1-9]\d*\(\.\d*\)\="
syn match   idlLiteral     contained "0"
syn match   idlLiteral     contained "\.\d\+"
syn match   idlLiteral     contained "0x[0-9A-Fa-f]\+"
syn match   idlLiteral     contained "0[0-7]\+"
syn keyword idlLiteral     contained TRUE FALSE

" Comments
syn keyword idlTodo        contained TODO FIXME XXX
syn region idlComment      start="/\*"  end="\*/" contains=idlTodo,@Spell
syn match  idlComment      "//.*" contains=idlTodo,@Spell
syn match  idlCommentError "\*/"

" C style Preprocessor
syn region idlIncluded    contained start=+"+  skip=+\\\(\\\\\)*"+  end=+"+
syn match  idlIncluded    contained "<[^>]*>"
syn match  idlInclude     "^[ \t]*#[ \t]*include\>[ \t]*["<]" contains=idlIncluded,idlString
syn region idlPreCondit   start="^[ \t]*#[ \t]*\(if\>\|ifdef\>\|ifndef\>\|elif\>\|else\>\|endif\>\)"  skip="\\$"  end="$" contains=idlComment,idlCommentError
syn region idlDefine      start="^[ \t]*#[ \t]*\(define\>\|undef\>\)" skip="\\$" end="$" contains=idlLiteral,idlString

" Constants
syn keyword idlConst    const                             skipempty skipwhite nextgroup=idlBaseType,idlBaseTypeInt

" Attribute
syn keyword idlROAttr   readonly                          skipempty skipwhite nextgroup=idlAttr
syn keyword idlAttr     attribute                         skipempty skipwhite nextgroup=idlBaseTypeInt,idlBaseType

" Types
syn region  idlD4          contained start="<" end=">"    skipempty skipwhite nextgroup=idlSimpDecl contains=idlSeqType,idlBaseTypeInt,idlBaseType,idlLiteral
syn keyword idlSeqType     contained sequence             skipempty skipwhite nextgroup=idlD4
syn keyword idlBaseType    contained float double char boolean octet any skipempty skipwhite nextgroup=idlSimpDecl
syn keyword idlBaseTypeInt contained short long           skipempty skipwhite nextgroup=idlSimpDecl
syn keyword idlBaseType    contained unsigned             skipempty skipwhite nextgroup=idlBaseTypeInt
syn region  idlD1          contained start="<" end=">"    skipempty skipwhite nextgroup=idlSimpDecl contains=idlString,idlLiteral
syn keyword idlBaseType    contained string               skipempty skipwhite nextgroup=idlD1,idlSimpDecl
syn match   idlBaseType    contained "[a-zA-Z0-9_]\+[ \t]*\(::[ \t]*[a-zA-Z0-9_]\+\)*"  skipempty skipwhite nextgroup=idlSimpDecl

" Modules
syn region  idlModuleContent contained start="{" end="}"  skipempty skipwhite nextgroup=idlError,idlSemiColon contains=idlUnion,idlStruct,idlEnum,idlInterface,idlComment,idlTypedef,idlConst,idlException,idlModule
syn match   idlModuleName  contained "[a-zA-Z0-9_]\+"     skipempty skipwhite nextgroup=idlModuleContent,idlError,idlSemiColon
syn keyword idlModule      module                         skipempty skipwhite nextgroup=idlModuleName

" Interfaces
syn cluster idlCommentable contains=idlComment
syn cluster idlContentCluster contains=idlUnion,idlStruct,idlEnum,idlROAttr,idlAttr,idlOp,idlOneWayOp,idlException,idlConst,idlTypedef,idlAttributes,idlErrorSquareBracket,idlErrorBracket,idlInterfaceSections

syn region  idlInterfaceContent contained start="{" end="}"   skipempty skipwhite nextgroup=idlError,idlSemiColon contains=@idlContentCluster,@idlCommentable
syn match   idlInheritFrom2 contained ","                     skipempty skipwhite nextgroup=idlInheritFrom
syn match   idlInheritFrom contained "[a-zA-Z0-9_]\+[ \t]*\(::[ \t]*[a-zA-Z0-9_]\+\)*" skipempty skipwhite nextgroup=idlInheritFrom2,idlInterfaceContent
syn match   idlInherit contained ":"                            skipempty skipwhite nextgroup=idlInheritFrom
syn match   idlInterfaceName contained "[a-zA-Z0-9_]\+"       skipempty skipwhite nextgroup=idlInterfaceContent,idlInherit,idlError,idlSemiColon
syn keyword idlInterface     interface dispinterface          skipempty skipwhite nextgroup=idlInterfaceName
syn keyword idlInterfaceSections contained properties methods skipempty skipwhite nextgroup=idlSectionColon,idlError
syn match   idlSectionColon contained ":"


syn match   idlLibraryName  contained  "[a-zA-Z0-9_]\+"       skipempty skipwhite nextgroup=idlLibraryContent,idlError,idlSemiColon
syn keyword idlLibrary      library                           skipempty skipwhite nextgroup=idlLibraryName
syn region  idlLibraryContent contained start="{" end="}"     skipempty skipwhite nextgroup=idlError,idlSemiColon contains=@idlCommentable,idlAttributes,idlErrorSquareBracket,idlErrorBracket,idlImportlib,idlCoclass,idlTypedef,idlInterface

syn keyword idlImportlib contained importlib                  skipempty skipwhite nextgroup=idlStringArg
syn region idlStringArg contained start="(" end=")"           contains=idlString nextgroup=idlError,idlSemiColon,idlErrorBrace,idlErrorSquareBracket

syn keyword idlCoclass coclass contained                      skipempty skipwhite nextgroup=idlCoclassName
syn match   idlCoclassName "[a-zA-Z0-9_]\+" contained         skipempty skipwhite nextgroup=idlCoclassDefinition,idlError,idlSemiColon

syn region idlCoclassDefinition contained start="{" end="}"   contains=idlCoclassAttributes,idlInterface,idlErrorBracket,idlErrorSquareBracket skipempty skipwhite nextgroup=idlError,idlSemiColon
syn region idlCoclassAttributes contained start=+\[+ end=+]+  skipempty skipwhite nextgroup=idlInterface contains=idlErrorBracket,idlErrorBrace,idlCoclassAttribute
syn keyword idlCoclassAttribute contained default source
"syn keyword idlInterface       interface                      skipempty skipwhite nextgroup=idlInterfaceStubName

syn match idlImportString       +"\f\+"+                      skipempty skipwhite nextgroup=idlError,idlSemiColon
syn keyword idlImport           import                        skipempty skipwhite nextgroup=idlImportString

syn region  idlAttributes start="\[" end="\]"                 contains=idlAttribute,idlAttributeParam,idlErrorBracket,idlErrorBrace,idlComment
syn keyword idlAttribute contained propput propget propputref id helpstring object uuid pointer_default
if !exists('idl_no_ms_extensions')
syn keyword idlAttribute contained nonextensible dual version aggregatable restricted hidden noncreatable oleautomation
endif
syn region idlAttributeParam contained start="(" end=")"      contains=idlString,idlUuid,idlLiteral,idlErrorBrace,idlErrorSquareBracket
" skipwhite nextgroup=idlArraySize,idlParmList contains=idlArraySize,idlLiteral
syn match idlErrorBrace contained "}"
syn match idlErrorBracket contained ")"
syn match idlErrorSquareBracket contained "\]"

syn match idlUuid         contained +[0-9a-zA-Z]\{8}-\([0-9a-zA-Z]\{4}-\)\{3}[0-9a-zA-Z]\{12}+

" Raises
syn keyword idlRaises     contained raises               skipempty skipwhite nextgroup=idlRaises,idlContext,idlError,idlSemiColon

" Context
syn keyword idlContext    contained context              skipempty skipwhite nextgroup=idlRaises,idlContext,idlError,idlSemiColon

" Operation
syn match   idlParmList   contained ","                  skipempty skipwhite nextgroup=idlOpParms
syn region  idlArraySize  contained start="\[" end="\]"  skipempty skipwhite nextgroup=idlArraySize,idlParmList contains=idlArraySize,idlLiteral
syn match   idlParmName   contained "[a-zA-Z0-9_]\+"     skipempty skipwhite nextgroup=idlParmList,idlArraySize
syn keyword idlParmInt    contained short long           skipempty skipwhite nextgroup=idlParmName
syn keyword idlParmType   contained unsigned             skipempty skipwhite nextgroup=idlParmInt
syn region  idlD3         contained start="<" end=">"    skipempty skipwhite nextgroup=idlParmName contains=idlString,idlLiteral
syn keyword idlParmType   contained string               skipempty skipwhite nextgroup=idlD3,idlParmName
syn keyword idlParmType   contained void float double char boolean octet any    skipempty skipwhite nextgroup=idlParmName
syn match   idlParmType   contained "[a-zA-Z0-9_]\+[ \t]*\(::[ \t]*[a-zA-Z0-9_]\+\)*" skipempty skipwhite nextgroup=idlParmName
syn keyword idlOpParms    contained in out inout         skipempty skipwhite nextgroup=idlParmType

if !exists('idl_no_ms_extensions')
syn keyword idlOpParms    contained retval optional      skipempty skipwhite nextgroup=idlParmType
  syn match idlOpParms contained +\<\(iid_is\|defaultvalue\)\s*([^)]*)+ skipempty skipwhite nextgroup=idlParamType

  syn keyword idlVariantType  contained BSTR VARIANT VARIANT_BOOL long short unsigned double CURRENCY DATE
  syn region idlSafeArray contained matchgroup=idlVariantType start=+SAFEARRAY(\s*+ end=+)+ contains=idlVariantType
endif

syn region  idlOpContents contained start="(" end=")"    skipempty skipwhite nextgroup=idlRaises,idlContext,idlError,idlSemiColon contains=idlOpParms,idlSafeArray,idlVariantType,@idlCommentable
syn match   idlOpName   contained "[a-zA-Z0-9_]\+"       skipempty skipwhite nextgroup=idlOpContents
syn keyword idlOpInt    contained short long             skipempty skipwhite nextgroup=idlOpName
syn region  idlD2       contained start="<" end=">"      skipempty skipwhite nextgroup=idlOpName contains=idlString,idlLiteral
syn keyword idlOp       contained unsigned               skipempty skipwhite nextgroup=idlOpInt
syn keyword idlOp       contained string                 skipempty skipwhite nextgroup=idlD2,idlOpName
syn keyword idlOp       contained void float double char boolean octet any  skipempty skipwhite nextgroup=idlOpName
syn match   idlOp       contained "[a-zA-Z0-9_]\+[ \t]*\(::[ \t]*[a-zA-Z0-9_]\+\)*" skipempty skipwhite nextgroup=idlOpName
syn keyword idlOp       contained void                   skipempty skipwhite nextgroup=idlOpName
syn keyword idlOneWayOp contained oneway                 skipempty skipwhite nextgroup=idOp

" Enum
syn region  idlEnumContents contained start="{" end="}"  skipempty skipwhite nextgroup=idlError,idlSemiColon,idlSimpDecl contains=idlId,idlAttributes,@idlCommentable
syn match   idlEnumName contained "[a-zA-Z0-9_]\+"       skipempty skipwhite nextgroup=idlEnumContents
syn keyword idlEnum     enum                             skipempty skipwhite nextgroup=idlEnumName,idlEnumContents

" Typedef
syn keyword idlTypedef typedef                          skipempty skipwhite nextgroup=idlTypedefOtherTypeQualifier,idlDefBaseType,idlDefBaseTypeInt,idlDefSeqType,idlDefv1Enum,idlDefEnum,idlDefOtherType,idlDefAttributes,idlError

if !exists('idl_no_extensions')
  syn keyword idlTypedefOtherTypeQualifier contained struct enum interface nextgroup=idlDefBaseType,idlDefBaseTypeInt,idlDefSeqType,idlDefv1Enum,idlDefEnum,idlDefOtherType,idlDefAttributes,idlError skipwhite

  syn region  idlDefAttributes        contained start="\[" end="\]" contains=idlAttribute,idlAttributeParam,idlErrorBracket,idlErrorBrace skipempty skipwhite nextgroup=idlDefBaseType,idlDefBaseTypeInt,idlDefSeqType,idlDefv1Enum,idlDefEnum,idlDefOtherType,idlError

  syn keyword idlDefBaseType      contained float double char boolean octet any  skipempty skipwhite nextgroup=idlTypedefDecl,idlError
  syn keyword idlDefBaseTypeInt   contained short long                           skipempty skipwhite nextgroup=idlTypedefDecl,idlError
  syn match idlDefOtherType       contained +\<\k\+\>+ skipempty                 nextgroup=idlTypedefDecl,idlError
  " syn keyword idlDefSeqType     contained sequence                             skipempty skipwhite nextgroup=idlD4

  " Enum typedef
  syn keyword idlDefEnum          contained enum skipempty                       skipwhite nextgroup=idlDefEnumName,idlDefEnumContents
  syn match   idlDefEnumName      contained "[a-zA-Z0-9_]\+"                     skipempty skipwhite nextgroup=idlDefEnumContents,idlTypedefDecl
  syn region  idlDefEnumContents  contained start="{" end="}"                    skipempty skipwhite nextgroup=idlError,idlTypedefDecl contains=idlId,idlAttributes

  syn match   idlTypedefDecl      contained "[a-zA-Z0-9_]\+"                     skipempty skipwhite nextgroup=idlError,idlSemiColon
endif

" Struct
syn region  idlStructContent   contained start="{" end="}"   skipempty skipwhite nextgroup=idlError,idlSemiColon,idlSimpDecl contains=idlBaseType,idlBaseTypeInt,idlSeqType,@idlCommentable,idlEnum,idlUnion
syn match   idlStructName      contained "[a-zA-Z0-9_]\+"    skipempty skipwhite nextgroup=idlStructContent
syn keyword idlStruct          struct                        skipempty skipwhite nextgroup=idlStructName

" Exception
syn keyword idlException       exception                     skipempty skipwhite nextgroup=idlStructName

" Union
syn match   idlColon            contained ":"                skipempty skipwhite nextgroup=idlCase,idlSeqType,idlBaseType,idlBaseTypeInt
syn region  idlCaseLabel        contained start="" skip="::" end=":"me=e-1 skipempty skipwhite nextgroup=idlColon contains=idlLiteral,idlString
syn keyword idlCase             contained case               skipempty skipwhite nextgroup=idlCaseLabel
syn keyword idlCase             contained default            skipempty skipwhite nextgroup=idlColon
syn region  idlUnionContent     contained start="{" end="}"  skipempty skipwhite nextgroup=idlError,idlSemiColon,idlSimpDecl contains=idlCase
syn region  idlSwitchType       contained start="(" end=")"  skipempty skipwhite nextgroup=idlUnionContent
syn keyword idlUnionSwitch      contained switch             skipempty skipwhite nextgroup=idlSwitchType
syn match   idlUnionName        contained "[a-zA-Z0-9_]\+"   skipempty skipwhite nextgroup=idlUnionSwitch
syn keyword idlUnion            union                        skipempty skipwhite nextgroup=idlUnionName

if !exists('idl_no_extensions')
  syn sync match  idlInterfaceSync grouphere idlInterfaceContent "\<\(disp\)\=interface\>\s\+\k\+\s*:\s*\k\+\_s*{" skipempty skipwhite nextgroup=idlError,idlSemiColon contains=@idlContentCluster,@idlCommentable
  syn sync maxlines=1000 minlines=100
else
  syn sync lines=200
endif
" syn sync fromstart

if !exists("did_idl_syntax_inits")
  let did_idl_syntax_inits = 1
  " The default methods for highlighting.  Can be overridden later
  command -nargs=+ HiLink hi def link <args>

  HiLink idlInclude             Include
  HiLink idlPreProc             PreProc
  HiLink idlPreCondit           PreCondit
  HiLink idlDefine              Macro
  HiLink idlIncluded            String
  HiLink idlString              String
  HiLink idlComment             Comment
  HiLink idlTodo                Todo
  HiLink idlLiteral             Number
  HiLink idlUuid                Number
  HiLink idlType                Type
  HiLink idlVariantType         idlType

  HiLink idlModule              Keyword
  HiLink idlInterface           Keyword
  HiLink idlEnum                Keyword
  HiLink idlStruct              Keyword
  HiLink idlUnion               Keyword
  HiLink idlTypedef             Keyword
  HiLink idlException           Keyword
  HiLink idlTypedefOtherTypeQualifier keyword

  HiLink idlModuleName          Typedef
  HiLink idlInterfaceName       Typedef
  HiLink idlEnumName            Typedef
  HiLink idlStructName          Typedef
  HiLink idlUnionName           Typedef

  HiLink idlBaseTypeInt         idlType
  HiLink idlBaseType            idlType
  HiLink idlSeqType             idlType
  HiLink idlD1                  Paren
  HiLink idlD2                  Paren
  HiLink idlD3                  Paren
  HiLink idlD4                  Paren
  "HiLink idlArraySize          Paren
  "HiLink idlArraySize1         Paren
  HiLink idlModuleContent       Paren
  HiLink idlUnionContent        Paren
  HiLink idlStructContent       Paren
  HiLink idlEnumContents        Paren
  HiLink idlInterfaceContent    Paren

  HiLink idlSimpDecl            Identifier
  HiLink idlROAttr              StorageClass
  HiLink idlAttr                Keyword
  HiLink idlConst               StorageClass

  HiLink idlOneWayOp            StorageClass
  HiLink idlOp                  idlType
  HiLink idlParmType            idlType
  HiLink idlOpName              Function
  HiLink idlOpParms             SpecialComment
  HiLink idlParmName            Identifier
  HiLink idlInheritFrom         Identifier
  HiLink idlAttribute           SpecialComment

  HiLink idlId                  Constant
  "HiLink idlCase               Keyword
  HiLink idlCaseLabel           Constant

  HiLink idlErrorBracket        Error
  HiLink idlErrorBrace          Error
  HiLink idlErrorSquareBracket  Error

  HiLink idlImport              Keyword
  HiLink idlImportString        idlString
  HiLink idlCoclassAttribute    StorageClass
  HiLink idlLibrary             Keyword
  HiLink idlImportlib           Keyword
  HiLink idlCoclass             Keyword
  HiLink idlLibraryName         Typedef
  HiLink idlCoclassName         Typedef
  " hi idlLibraryContent guifg=red
  HiLink idlTypedefDecl         Typedef
  HiLink idlDefEnum             Keyword
  HiLink idlDefv1Enum           Keyword
  HiLink idlDefEnumName         Typedef
  HiLink idlDefEnumContents     Paren
  HiLink idlDefBaseTypeInt      idlType
  HiLink idlDefBaseType         idlType
  HiLink idlDefSeqType          idlType
  HiLink idlInterfaceSections   Label

  if exists("idlsyntax_showerror")
    if exists("idlsyntax_showerror_soft")
      hi default idlError guibg=#d0ffd0
    else
      HiLink idlError Error
    endif
  endif
  delcommand HiLink
endif

let b:current_syntax = "idl"

" vim: sw=2 et

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