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# -*- coding: utf-8 -*- #
# frozen_string_literal: true
module Rouge
module Lexers
load_lexer 'json.rb'
class HOCON < JSON
title 'HOCON'
desc "Human-Optimized Config Object Notation (https://github.com/lightbend/config)"
tag 'hocon'
filenames '*.hocon'
state :comments do
# Comments
rule %r(//.*?$), Comment::Single
rule %r(#.*?$), Comment::Single
end
prepend :root do
mixin :comments
end
prepend :object do
# Keywords
rule %r/\b(?:include|url|file|classpath)\b/, Keyword
end
state :name do
rule %r/("(?:\"|[^"\n])*?")(\s*)([:=]|(?={))/ do
groups Name::Label, Text::Whitespace, Punctuation
end
rule %r/([-\w.]+)(\s*)([:=]|(?={))/ do
groups Name::Label, Text::Whitespace, Punctuation
end
end
state :value do
mixin :comments
rule %r/\n/, Text::Whitespace
rule %r/\s+/, Text::Whitespace
mixin :constants
# Interpolation
rule %r/[$][{][?]?/, Literal::String::Interpol, :interpolation
# Strings
rule %r/"""/, Literal::String::Double, :multiline_string
rule %r/"/, Str::Double, :string
rule %r/\[/, Punctuation, :array
rule %r/{/, Punctuation, :object
# Symbols (only those not handled by JSON)
rule %r/[()=]/, Punctuation
# Values
rule %r/[^$"{}\[\]:=,\+#`^?!@*&]+?/, Literal
end
state :interpolation do
rule %r/[\w\-\.]+?/, Name::Variable
rule %r/}/, Literal::String::Interpol, :pop!
end
prepend :string do
rule %r/[$][{][?]?/, Literal::String::Interpol, :interpolation
rule %r/[^\\"\${]+/, Literal::String::Double
end
state :multiline_string do
rule %r/"[^"]{1,2}/, Literal::String::Double
mixin :string
rule %r/"""/, Literal::String::Double, :pop!
end
prepend :constants do
# Numbers (handle the case where we have multiple periods, ie. IP addresses)
rule %r/\d+\.(\d+\.?){3,}/, Literal
end
end
end
end
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