69 lines
1.6 KiB
Ruby
69 lines
1.6 KiB
Ruby
# -*- 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 Dot < RegexLexer
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title "DOT"
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desc "graph description language"
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tag 'dot'
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filenames '*.dot'
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mimetypes 'text/vnd.graphviz'
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start do
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@html = HTML.new(options)
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end
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state :comments_and_whitespace do
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rule /\s+/, 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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end
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state :html do
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rule /[^<>]+/ do
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delegate @html
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end
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rule /<.+?>/m do
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delegate @html
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end
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rule />/, Punctuation, :pop!
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end
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state :ID do
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rule /([a-zA-Z][a-zA-Z_0-9]*)(\s*)(=)/ do |m|
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token Name, m[1]
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token Text, m[2]
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token Punctuation, m[3]
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end
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rule /[a-zA-Z][a-zA-Z_0-9]*/, Name::Variable
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rule /([0-9]+)?\.[0-9]+/, Num::Float
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rule /[0-9]+/, Num::Integer
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rule /"(\\"|[^"])*"/, Str::Double
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rule /</ do
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token Punctuation
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@html.reset!
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push :html
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end
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end
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state :a_list do
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mixin :comments_and_whitespace
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mixin :ID
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rule /[=;,]/, Punctuation
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rule /\]/, Operator, :pop!
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end
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state :root do
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mixin :comments_and_whitespace
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rule /\b(strict|graph|digraph|subgraph|node|edge)\b/i, Keyword
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rule /[{};:=]/, Punctuation
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rule /-[->]/, Operator
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rule /\[/, Operator, :a_list
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mixin :ID
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end
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end
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end
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end
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