72 lines
2.1 KiB
Ruby
72 lines
2.1 KiB
Ruby
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# -*- coding: utf-8 -*- #
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# frozen_string_literal: true
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module Rouge
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module Lexers
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class Protobuf < RegexLexer
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title 'Protobuf'
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desc 'Google\'s language-neutral, platform-neutral, extensible mechanism for serializing structured data'
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tag 'protobuf'
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aliases 'proto'
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filenames '*.proto'
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mimetypes 'text/x-proto'
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kw = /\b(ctype|default|extensions|import|max|oneof|option|optional|packed|repeated|required|returns|rpc|to)\b/
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datatype = /\b(bool|bytes|double|fixed32|fixed64|float|int32|int64|sfixed32|sfixed64|sint32|sint64|string|uint32|uint64)\b/
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state :root do
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rule %r/[\s]+/, Text
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rule %r/[,;{}\[\]()]/, Punctuation
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rule %r/\/(\\\n)?\/(\n|(.|\n)*?[^\\]\n)/, Comment::Single
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rule %r/\/(\\\n)?\*(.|\n)*?\*(\\\n)?\//, Comment::Multiline
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rule kw, Keyword
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rule datatype, Keyword::Type
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rule %r/true|false/, Keyword::Constant
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rule %r/(package)(\s+)/ do
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groups Keyword::Namespace, Text
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push :package
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end
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rule %r/(message|extend)(\s+)/ do
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groups Keyword::Declaration, Text
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push :message
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end
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rule %r/(enum|group|service)(\s+)/ do
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groups Keyword::Declaration, Text
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push :type
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end
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rule %r/".*?"/, Str
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rule %r/'.*?'/, Str
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rule %r/(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[LlUu]*/, Num::Float
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rule %r/(\d+\.\d*|\.\d+|\d+[fF])[fF]?/, Num::Float
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rule %r/(\-?(inf|nan))\b/, Num::Float
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rule %r/0x[0-9a-fA-F]+[LlUu]*/, Num::Hex
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rule %r/0[0-7]+[LlUu]*/, Num::Oct
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rule %r/\d+[LlUu]*/, Num::Integer
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rule %r/[+-=]/, Operator
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rule %r/([a-zA-Z_][\w.]*)([ \t]*)(=)/ do
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groups Name::Attribute, Text, Operator
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end
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rule %r/[a-zA-Z_][\w.]*/, Name
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end
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state :package do
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rule %r/[a-zA-Z_]\w*/, Name::Namespace, :pop!
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rule(//) { pop! }
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end
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state :message do
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rule %r/[a-zA-Z_]\w*/, Name::Class, :pop!
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rule(//) { pop! }
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end
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state :type do
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rule %r/[a-zA-Z_]\w*/, Name, :pop!
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rule(//) { pop! }
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end
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end
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end
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end
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