70 lines
1.7 KiB
Ruby
70 lines
1.7 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 IO < RegexLexer
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tag 'io'
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title "Io"
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desc 'The IO programming language (http://iolanguage.com)'
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mimetypes 'text/x-iosrc'
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filenames '*.io'
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def self.detect?(text)
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return true if text.shebang? 'io'
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end
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def self.constants
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@constants ||= Set.new %w(nil false true)
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end
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def self.builtins
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@builtins ||= Set.new %w(
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args call clone do doFile doString else elseif for if list
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method return super then
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)
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end
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state :root do
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rule %r/\s+/m, Text
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rule %r(//.*?\n), Comment::Single
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rule %r(#.*?\n), Comment::Single
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rule %r(/(\\\n)?[*].*?[*](\\\n)?/)m, Comment::Multiline
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rule %r(/[+]), Comment::Multiline, :nested_comment
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rule %r/"(\\\\|\\"|[^"])*"/, Str
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rule %r(:?:=), Keyword
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rule %r/[()]/, Punctuation
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rule %r([-=;,*+><!/|^.%&\[\]{}]), Operator
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rule %r/[A-Z]\w*/, Name::Class
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rule %r/[a-z_]\w*/ do |m|
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name = m[0]
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if self.class.constants.include? name
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token Keyword::Constant
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elsif self.class.builtins.include? name
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token Name::Builtin
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else
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token Name
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end
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end
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rule %r((\d+[.]?\d*|\d*[.]\d+)(e[+-]?[0-9]+)?)i, Num::Float
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rule %r/\d+/, Num::Integer
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rule %r/@@?/, Keyword
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end
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state :nested_comment do
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rule %r([^/+]+)m, Comment::Multiline
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rule %r(/[+]), Comment::Multiline, :nested_comment
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rule %r([+]/), Comment::Multiline, :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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