Class: Gly::Parser

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

Overview

parses gly source

Instance Method Summary collapse

Constructor Details

#initialize(syllable_separator = nil) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/gly/parser.rb', line 6

def initialize(syllable_separator=nil)
  @syllable_separator = syllable_separator || '--'
end

Instance Method Details

#parse(source) ⇒ Object 



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# File 'lib/gly/parser.rb', line 10

def parse(source)
  if source.is_a? String
    if File.file? source
      parse_fname source
    elsif source == '-'
      parse_io STDIN
    else
      parse_str source
    end
  else
    parse_io source
  end
end

#parse_fname(str) ⇒ Object 



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# File 'lib/gly/parser.rb', line 24

def parse_fname(str)
  File.open(str) do |fr|
    parse_io fr
  end
end

#parse_io(io) ⇒ Object 



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# File 'lib/gly/parser.rb', line 34

def parse_io(io)
  @doc = Document.new
  @score = ParsedScore.new

  if io.respond_to? :path
    @doc.path = io.path
  end

  io.each do |line|
    line = strip_comments(line)

    if empty? line
      next
    elsif new_score? line
      push_score
      @score = ParsedScore.new
    elsif header_start? line
      push_score
      @score = @doc.header
    elsif header_line? line
      parse_header line
    elsif explicit_lyrics? line
      parse_lyrics line
    elsif explicit_music? line
      parse_music line
    elsif lyrics_line? line
      parse_lyrics line
    else
      parse_music line
    end
  end

  push_score

  return @doc
end

#parse_str(str) ⇒ Object 



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# File 'lib/gly/parser.rb', line 30

def parse_str(str)
  parse_io(StringIO.new(str))
end