Class: Chordproko::PlainSong

Inherits:
Object
  • Object
show all
Defined in:
lib/chordproko/plain_song.rb

Instance Method Summary collapse

Constructor Details

#initialize(sheet, options = {transpose: 1}) ⇒ PlainSong

Returns a new instance of PlainSong.



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# File 'lib/chordproko/plain_song.rb', line 3

def initialize sheet, options={transpose: 1}
  @sheet = sheet
  @options = options
end

Instance Method Details

#chord_group_format(str) ⇒ Object 



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# File 'lib/chordproko/plain_song.rb', line 48

def chord_group_format str
  str
end

#chord_line_format(str) ⇒ Object 



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# File 'lib/chordproko/plain_song.rb', line 54

def chord_line_format str
  str
end

#comment_format(str) ⇒ Object 



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# File 'lib/chordproko/plain_song.rb', line 57

def comment_format str
  str
end

#content ⇒ Object 



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# File 'lib/chordproko/plain_song.rb', line 10

def content
  @content ||= generate
end

#directive_format(str) ⇒ Object 



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# File 'lib/chordproko/plain_song.rb', line 60

def directive_format str
  str
end

#generate ⇒ Object 



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# File 'lib/chordproko/plain_song.rb', line 13

def generate
  textified = ""
  @sheet.each do |line|
    chords = ""
    lyrics = ""
    prev_lyrics = ""
    prev_chord = ""
    line.each do |element|
      element.each do |item|
        case item.class.to_s
        when "Chordproko::Comment"
          textified += item.to_s
        when "Chordproko::Directive"
          textified += item.to_s
        when "Chordproko::ChordGroup"
         item.key = @options[:transpose] if @options[:transpose] rescue 0
         cgroup = item.to_s
           chords += (" " * (prev_lyrics.size - prev_chord.size).abs) + chord_group_format(cgroup)
           prev_chord = cgroup

        when "Chordproko::Lyric"
          prev_lyrics = item.to_s
          lyrics += item.to_s
        end
      end #case
    end #line
    chord_lyrics = []
    chord_lyrics << chord_line_format(chords) if chords.size > 0
    chord_lyrics << lyric_line_format(lyrics) if lyrics.size > 0
    textified += chord_lyrics.join("\n")
    textified += "\n"
  end #sheet
  textified
end

#lyric_format(str) ⇒ Object 



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# File 'lib/chordproko/plain_song.rb', line 63

def lyric_format str
  str
end

#lyric_line_format(str) ⇒ Object 



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# File 'lib/chordproko/plain_song.rb', line 51

def lyric_line_format str
  str
end

#to_s ⇒ Object 



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# File 'lib/chordproko/plain_song.rb', line 7

def to_s
  content
end