Class: Spot::Clean

Inherits:
Object
  • Object
show all
Defined in:
lib/spot/clean.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(content) ⇒ Clean

Returns a new instance of Clean.



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# File 'lib/spot/clean.rb', line 6

def initialize(content)
  @content = content
  @exclude = YAML.load_file(File.join(File.expand_path(File.dirname(__FILE__)), "exclude.yml"))
end

Instance Attribute Details

#content ⇒ Object (readonly)

Returns the value of attribute content.



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# File 'lib/spot/clean.rb', line 5

def content
  @content
end

Instance Method Details

#process ⇒ Object 



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# File 'lib/spot/clean.rb', line 11

def process
  string = content.strip

  @exclude.each do |exclude|
    string = string.gsub(/#{exclude}/i, "")
  end

  # Song - A + B + C => Song - A
  # Song - A abc/def => Song - A abc
  # Song - A & abc def => Song - A
  # Song - A "abc def" => Song - A
  # Song - A [B + C] => Song - A
  # Song A B.mp3 => Song A B
  # 10. Song => Song
  [
    /\.[a-z0-9]{2,3}$/, 
    /\[[^\]]*\]/, 
    /".*"/,  
    /(\s+|^)'.*'(\s+|$)/,
    /[&|\/|\+][^\z]*/, 
    /^(\d+.*?[^a-z]+?)/i
  ].each do |reg|
    string = string.gsub(reg, ' ').strip
  end
  
  [
    /\(.+?\)/m, 
    /[^a-z0-9]feat(.*?)\s*[^\s]+/i, 
    /[-]+/, 
    /[\s]+/m, 
    /\_/
  ].each do |reg|
     string = string.gsub(reg, ' ').strip
  end
  
  {"ä" => "a", "å" => "a", "ö" => "o"}.each do |from, to|
    string.gsub!(/#{from}/i, to)
  end
  
  string.gsub(/\A\s|\s\z/, '').gsub(/\s+/, ' ').strip.downcase
rescue Encoding::CompatibilityError
  return string
end