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# -*- coding: utf-8 -*- #
# frozen_string_literal: true
module Rouge
module Lexers
class Fluent < RegexLexer
title 'Fluent'
desc 'Fluent localization files'
tag 'fluent'
aliases 'ftl'
filenames '*.ftl'
state :root do
rule %r{( *)(\=)( *)} do
groups Text::Whitespace, Punctuation, Text::Whitespace
push :template
end
rule %r{(?:\s*\n)+}m, Text::Whitespace
rule %r{\#{1,3}(?: .*)?$}, Comment::Single
rule %r{[a-zA-Z][a-zA-Z0-9_-]*}, Name::Constant
rule %r{\-[a-zA-Z][a-zA-Z0-9_-]*}, Name::Entity
rule %r{\s*\.[a-zA-Z][a-zA-Z0-9_-]*}, Name::Attribute
rule %r{\s+(?=[^\s\.])}, Text::Whitespace, :template
end
state :template do
rule %r{\n}m, Text::Whitespace, :pop!
rule %r{[^\{\n\}\*]+}, Text
rule %r{\{}, Punctuation, :placeable
rule %r{(?=\})}, Punctuation, :pop!
end
state :placeable do
rule %r{\s+}m, Text::Whitespace
rule %r{\{}, Punctuation, :placeable
rule %r{\}}, Punctuation, :pop!
rule %r{\$[a-zA-Z][a-zA-Z0-9_-]*}, Name::Variable
rule %r{\-[a-zA-Z][a-zA-Z0-9_-]*}, Name::Entity
rule %r{\.[a-zA-Z][a-zA-Z0-9_-]*}, Name::Attribute
rule %r{[A-Z]+}, Name::Builtin
rule %r{[a-zA-Z][a-zA-Z0-9_-]*}, Name::Constant
rule %r{[\(\),\:]}, Punctuation
rule %r{->}, Punctuation
rule %r{\*}, Punctuation::Indicator
rule %r{\-?\d+\.\d+?}, Literal::Number::Float
rule %r{\-?\d+}, Literal::Number::Integer
rule %r{"}, Str::Double, :string
rule %r{(\[)(\-?\d+\.\d+)(\])} do
groups Punctuation, Literal::Number::Float, Punctuation
push :template
end
rule %r{(\[)(\-?\d+)(\])} do
groups Punctuation, Literal::Number::Integer, Punctuation
push :template
end
rule %r{(\[)([a-zA-Z][a-zA-Z0-9_-]+)(\])} do
groups Punctuation, Str::Symbol, Punctuation
push :template
end
end
state :string do
rule %r{\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{6}}, Str::Escape
rule %r{\\.}, Str::Escape
rule %r{[^\"\\]}, Str::Double
rule %r{"}, Str::Double, :pop!
end
end
end
end
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