Class: Epub::Reader

Inherits:
Object
  • Object
show all
Defined in:
lib/epub-reader/reader.rb,
lib/epub-reader/version.rb

Constant Summary collapse

EPUB_MIMETYPE = 
"application/epub+zip"
PACKAGE_MEDIATYPE = 
"application/oebps-package+xml"
VERSION = 
"0.0.9"

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(f) ⇒ Reader

Returns a new instance of Reader.

Raises:



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# File 'lib/epub-reader/reader.rb', line 9

def initialize(f)
  raise(FileNotFoundError, "File not found") unless File.exists?(f)
  @filepath  = f.to_s
  @file      = EpubFile.new(f)
  raise(MalformedFileError, "Invalid EPUB file format") unless valid?
end

Instance Attribute Details

#file ⇒ Object (readonly)

Returns the value of attribute file.



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# File 'lib/epub-reader/reader.rb', line 7

def file
  @file
end

#filepath ⇒ Object (readonly)

Returns the value of attribute filepath.



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# File 'lib/epub-reader/reader.rb', line 7

def filepath
  @filepath
end

Class Method Details

.open(f) ⇒ Object 



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# File 'lib/epub-reader/reader.rb', line 16

def Reader.open(f)
  reader = Reader.new(f)
  if block_given?
    yield reader
  else
    reader
  end
end

Instance Method Details

#author ⇒ Object 



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# File 'lib/epub-reader/reader.rb', line 45

def author
  @author ||= package.creator
end

#container ⇒ Object 



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# File 'lib/epub-reader/reader.rb', line 65

def container
  @container ||= Container.new(self)
end

#cover ⇒ Object 



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# File 'lib/epub-reader/reader.rb', line 69

def cover
  @cover ||= package.cover
end

#epub_version ⇒ Object 



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# File 'lib/epub-reader/reader.rb', line 33

def epub_version
  @version ||= package.version
end

#language ⇒ Object 



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# File 'lib/epub-reader/reader.rb', line 53

def language
  @language ||= package.language
end

#mimetype ⇒ Object 



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# File 'lib/epub-reader/reader.rb', line 25

def mimetype
  @mimetype ||= begin
    file.get_input_stream('mimetype').read
  rescue
    nil
  end
end

#package(index = 0) ⇒ Object

Convenient method



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# File 'lib/epub-reader/reader.rb', line 90

def package(index = 0)
  container.package(index)
end

#pages ⇒ Object 



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# File 'lib/epub-reader/reader.rb', line 61

def pages
  @pages ||= toc.pages
end

#publication_date ⇒ Object 



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# File 'lib/epub-reader/reader.rb', line 49

def publication_date
  @publication_date ||= package.date
end

#title ⇒ Object 



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# File 'lib/epub-reader/reader.rb', line 41

def title
  @title ||= package.title
end

#toc ⇒ Object 



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# File 'lib/epub-reader/reader.rb', line 57

def toc
  @toc ||= Toc.new(package.toc, self)
end

#uid ⇒ Object 



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# File 'lib/epub-reader/reader.rb', line 37

def uid
  @uid ||= package.identifier
end