Class: GetText::RubyLexX::StringExtractor

Inherits:
Ripper::Filter
  • Object
show all
Defined in:
lib/gettext/tools/parser/ruby.rb

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ StringExtractor

Returns a new instance of StringExtractor.



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# File 'lib/gettext/tools/parser/ruby.rb', line 24

def initialize(*args)
  super
  @string_mark_stack = []
end

Instance Method Details

#on_default(event, token, output) ⇒ Object 



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# File 'lib/gettext/tools/parser/ruby.rb', line 29

def on_default(event, token, output)
  case event
  when :on_tstring_content
    if @string_mark_stack.last == "\""
      output << token.gsub(/\\./) do |data|
        case data
        when "\\n"
          "\n"
        when "\\t"
          "\t"
        when "\\\\"
          "\\"
        when "\\\""
          "\""
        when "\\\#"
          "#"
        else
          data
        end
      end
    else
      output << token.gsub(/\\./) do |data|
        case data
        when "\\\\"
          "\\"
        when "\\'"
          "'"
        else
          data
        end
      end
    end
  when :on_tstring_beg
    unless @string_mark_stack.empty?
      output << token
    end
    @string_mark_stack << token
  when :on_tstring_end
    @string_mark_stack.pop
    unless @string_mark_stack.empty?
      output << token
    end
  else
    unless @string_mark_stack.empty?
      output << token.to_s
    end
  end
  output
end