Class: MusicSanitizer::Processor

Inherits:
Object
  • Object
show all
Defined in:
lib/music_sanitizer/processor.rb

Constant Summary collapse

IGNORE = 
YAML.load_file(File.join(MusicSanitizer.root, "lists/ignore.yml"))
EXCLUDE = 
YAML.load_file(File.join(MusicSanitizer.root, "lists/exclude.yml"))

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(content) ⇒ Processor

Returns a new instance of Processor.



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# File 'lib/music_sanitizer/processor.rb', line 6

def initialize(content)
  @content = content
end

Class Method Details

.ignore?(this, compare = nil) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/music_sanitizer/processor.rb', line 58

def self.ignore?(this, compare = nil)
  IGNORE.
    reject{ |value| compare.to_s.match(/#{value}/i) }.
    map{ |value| this.match(/#{value}/i) }.any?
rescue ArgumentError
  return false
end

Instance Method Details

#process ⇒ Object 



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# File 'lib/music_sanitizer/processor.rb', line 10

def process
  string = @content.strip

  EXCLUDE.each do |exclude|
    string = string.gsub(/[^ ]*#{exclude}.*$/i, "")
  end

  # Sub
  string = string.gsub(/ยด/, "'").gsub(/`/, "'")

  # Song - A "abc def" => Song - A
  # Song - A [B + C] => Song - A
  # Song A B.mp3 => Song A B
  # 10. Song => Song
  [
    /\.mp3$/, 
    /\[[^\]]*\]/, 
    /".*"/,  
    /(\s+|^)'.*'(\s+|$)/
  ].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

  # Split
  # A ft. B => A
  string = string.split(/ft\.\s+/i).first
  # A + B => A
  string = string.split(/\s+\+\s+/).first

  EXCLUDE.each do |exclude|
    string = string.gsub(/#{exclude}.*$/i, "")
  end
  
  string.gsub(/\A\s|\s\z/, "").gsub(/\s+/, " ").strip.downcase
rescue Encoding::CompatibilityError, Encoding::UndefinedConversionError, ArgumentError
  return string
end