73 lines
1.4 KiB
Ruby
73 lines
1.4 KiB
Ruby
module CodeRay
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module Encoders
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# = XML Encoder
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#
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# Uses REXML. Very slow.
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class XML < Encoder
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register_for :xml
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FILE_EXTENSION = 'xml'
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autoload :REXML, 'rexml/document'
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DEFAULT_OPTIONS = {
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:tab_width => 8,
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:pretty => -1,
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:transitive => false,
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}
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protected
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def setup options
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super
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@doc = REXML::Document.new
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@doc << REXML::XMLDecl.new
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@tab_width = options[:tab_width]
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@root = @node = @doc.add_element('coderay-tokens')
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end
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def finish options
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@doc.write @out, options[:pretty], options[:transitive], true
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super
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end
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public
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def text_token text, kind
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if kind == :space
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token = @node
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else
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token = @node.add_element kind.to_s
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end
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text.scan(/(\x20+)|(\t+)|(\n)|[^\x20\t\n]+/) do |space, tab, nl|
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case
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when space
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token << REXML::Text.new(space, true)
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when tab
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token << REXML::Text.new(tab, true)
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when nl
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token << REXML::Text.new(nl, true)
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else
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token << REXML::Text.new($&)
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end
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end
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end
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def begin_group kind
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@node = @node.add_element kind.to_s
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end
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def end_group kind
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if @node == @root
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raise 'no token to close!'
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end
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@node = @node.parent
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end
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end
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end
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end
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