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" syn clear pbType
" syn clear pbRepeat
" syn clear pbMessage
" syn clear pbTypedef
syn keyword pbEnumTypedef enum nextgroup=pbEnumTypeName skipwhite skipempty
syn keyword pbRepeat required optional repeated nextgroup=protoFieldType skipempty skipwhite
syn cluster top contains=
\pbRepeat,
\protoComment,
\protoInt,
\protoFloat,
\protoString,
\pbEnumTypedef,
\pbMessage2
\protoSyntax,
\protoStructure,
\protoRepeat,
\protoDefault,
\protoExtend,
\protoRPC,
\pbAnnotation,
\pbOneofKeyword,
\pbOptionKeyword,
\pbMessageKeyword
syn cluster oneofContains contains=protoFieldType,pbOptionKeyword,protoComment,pbAnnotation
syn keyword pbOneofKeyword oneof nextgroup=pbOneofName skipwhite
syn match pbOneofName +\<\w\+\>+ nextgroup=pbOneofBody contained skipwhite
syn region pbOneofBody start=+{+ end=+}+ contains=@oneofContains contained
syn match protoFieldType "\<\([A-Za-z0-9_]\+\|\_s*\.\_s*[A-Za-z0-9_]\+\)\+\>" nextgroup=protoFieldName skipempty skipwhite
syn match protoFieldName "\<\w\+\>" nextgroup=protoFieldEquals contained skipwhite
syn match protoFieldEquals +=+ contained nextgroup=protoFieldNumber,protoFieldNumberBad contained skipwhite
syn match protoFieldNumber +[1-9][0-9]*+ contained
syn match protoFieldNumberBad +0[0-9]*+ contained
hi! link protoFieldNumber Number
hi! link protoFieldEquals Operator
hi! link protoFieldNumberBad Error
syn match pbEnumTypeName "\<\w\+\>" nextgroup=enumBody skipempty skipwhite contained
syn region enumBody start=+{+ end=+}+ contains=enumValue,protoComment,protoInt,pbAnnotation fold contained
syn match enumValue "\zs\w\+\ze\s*=" contained
syn keyword pbExtendKeyword extend nextgroup=pbMessageQualifiedName skipwhite
syn match pbMessageQualifiedName "\<[a-zA-Z0-9_.]\+\>" nextgroup=pbMessageBody skipempty skipwhite
hi! link pbExtendKeyword protoExtend
hi! link pbMessageQualifiedName pbMessage2
syn keyword pbMessageKeyword message nextgroup=pbMessage2 skipwhite
syn match pbMessage2 "\<\w\+\>" nextgroup=pbMessageBody skipempty skipwhite
syn region pbMessageBody start=+{+ end=+}+ contains=@top,pbExtendKeyword fold contained
syn region protoAnnotString start=/"/ skip=/\\./ end=/"/ contained
syn region protoAnnotString start=/'/ skip=/\\./ end=/'/ contained
syn region pbAnnotation start=+\[+ end=+\]+ contains=protoAnnotString,pbAnnotationType,protoComment fold
syn keyword pbOptionKeyword option nextgroup=pbAnnotationType skipwhite
syn match pbAnnotationType +([a-z._]\+)+ nextgroup=annotationEquals contained skipwhite
syn match annotationEquals +=+ nextgroup=annotationValue contained skipwhite
syn match annotationValue +\w\++ contained
hi link annotationEquals Operator
hi link annotationValue Constant
hi link pbAnnotationType Identifier
hi link protoAnnotString String
hi link protoFieldType Type
hi link pbEnumTypeName Type
hi link pbMessage2 Type
hi link protoFieldName Identifier
hi link enumValue Constant
hi link pbAnnotation PreProc
hi! link pbOneofKeyword protoStructure
hi! link pbOneofName Identifier
hi! link pbEnumTypedef StorageClass
hi! link pbRepeat StorageClass
hi! link pbOptionKeyword protoSyntax
hi! link pbMessageKeyword protoStructure
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