Class: Gly::DocumentLyConvertor

Inherits:
Object
  • Object
show all
Defined in:
lib/gly/document_ly_convertor.rb

Overview

Converts gly to modern-notation LilyPond

expects the ‘lygre’ gem (which is only an optional dependency of gly)

Instance Method Summary collapse

Constructor Details

#initialize(document) ⇒ DocumentLyConvertor

Returns a new instance of DocumentLyConvertor.



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# File 'lib/gly/document_ly_convertor.rb', line 9

def initialize(document)
  @doc = document
end

Instance Method Details

#convert ⇒ Object 



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# File 'lib/gly/document_ly_convertor.rb', line 13

def convert
  gabcor = GabcConvertor.new
  parser = GabcParser.new
  lilyor = LilypondConvertor.new cadenza: true, version: false

  ly_output = StringIO.new

  ly_output.puts '\version "2.18.0"'
  ly_output.puts
  ly_output.puts header @doc.header
  ly_output.puts
  ly_output.puts default_style
  ly_output.puts

  @doc.scores.each do |score|
    gabc = gabcor.convert(score).string
    parsed_score = parser.parse gabc
    begin
      ly_output.puts lilyor.convert parsed_score.create_score
    rescue NoMethodError
      ly_output.puts "\\markup{error processing score \\italic{#{score.lyrics.readable}}}"
    end

    ly_output.puts
  end

  out_fname = File.basename(@doc.path) + '.ly'
  File.open(out_fname, 'w') do |fw|
    fw.puts ly_output.string
  end
end