Class: EPUB::CFI::Location

Inherits:
Object
  • Object
show all
Defined in:
lib/epub/cfi.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(paths = []) ⇒ Location

Returns a new instance of Location.


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# File 'lib/epub/cfi.rb', line 19

def initialize(paths=[])
  @paths = paths
end

Instance Attribute Details

#pathsObject (readonly)

Returns the value of attribute paths


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# File 'lib/epub/cfi.rb', line 17

def paths
  @paths
end

Instance Method Details

#<=>(other) ⇒ Object


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# File 'lib/epub/cfi.rb', line 31

def <=>(other)
  index = 0
  other_paths = other.paths
  cmp = nil
  paths.each do |path|
    other_path = other_paths[index]
    return 1 unless other_path
    cmp = path <=> other_path
    break unless cmp == 0
    index += 1
  end

  unless cmp == 0
    if cmp == 1 and paths[index].offset and other_paths[index + 1]
      return nil
    else
      return cmp
    end
  end

  return nil if paths.last.offset && other_paths[index]

  return -1 if other_paths[index]

  0
end

#initialize_copy(original) ⇒ Object


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# File 'lib/epub/cfi.rb', line 23

def initialize_copy(original)
  @paths = original.paths.collect(&:dup)
end

#join(*other_paths) ⇒ Object


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# File 'lib/epub/cfi.rb', line 66

def join(*other_paths)
  new_paths = paths.dup
  other_paths.each do |path|
    new_paths << path
  end
  self.class.new(new_paths)
end

#to_fragmentObject


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# File 'lib/epub/cfi.rb', line 62

def to_fragment
 "epubcfi(#{self})"
end

#to_sObject


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# File 'lib/epub/cfi.rb', line 58

def to_s
  paths.join('!')
end

#typeObject


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# File 'lib/epub/cfi.rb', line 27

def type
  @paths.last.type
end