Class: MusicLibrary

Inherits:
Object
  • Object
show all
Defined in:
lib/itc/musiclib.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file) ⇒ MusicLibrary

Returns a new instance of MusicLibrary.



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# File 'lib/itc/musiclib.rb', line 8

def initialize(file)
    @file = file
    @tracks = []

    parse_xml
end

Instance Attribute Details

#file ⇒ Object

Returns the value of attribute file.



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# File 'lib/itc/musiclib.rb', line 6

def file
  @file
end

#tracks ⇒ Object

Returns the value of attribute tracks.



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# File 'lib/itc/musiclib.rb', line 6

def tracks
  @tracks
end

Instance Method Details

#parse_xml ⇒ Object 



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# File 'lib/itc/musiclib.rb', line 15

def parse_xml
    entities = HTMLEntities.new
    in_tracks = false
    track = {}

    IO.foreach(File.expand_path(@file)) do |line|
        line = line.force_encoding("UTF-8")

        if line =~ /^\t<key>Tracks<\/key>$/
            in_tracks = true
            next
        end

        if in_tracks then
            if line =~ /^\t\t\t<key>(.*)<\/key><(date|integer|string)>(.*)<\/.*>$/
                key = $1.downcase.split.join("_").intern
                track[key] = entities.decode($3.to_s)
                next
            elsif line =~ /^\t\t<\/dict>$/ then
                @tracks.push(track.dup)
                track.clear
                next
            elsif in_tracks && line =~ /^\t<\/dict>$/
                in_tracks = false
                next
            else
                next
            end
        end
    end
end