Class: PDF::Reader::Filter::Lzw

Inherits:

Object

• Object
• PDF::Reader::Filter::Lzw

Defined in:

lib/pdf/reader/filter/lzw.rb

Overview

implementation of the LZW stream filter

Instance Method Summary

• #filter(data) ⇒ Object

  Decode the specified data with the LZW compression algorithm : (String) -> String.

• #initialize(options = {}) ⇒ Lzw constructor

  : (?Hash[untyped, untyped]) -> void.

Constructor Details

#initialize(options = {}) ⇒ Lzw

: (?Hash[untyped, untyped]) -> void

# File 'lib/pdf/reader/filter/lzw.rb', line 12

def initialize(options = {})
  @options = options
end

Instance Method Details

#filter(data) ⇒ Object

Decode the specified data with the LZW compression algorithm : (String) -> String

# File 'lib/pdf/reader/filter/lzw.rb', line 19

def filter(data)
  data = PDF::Reader::LZW.decode(data)
  Depredict.new(@options).filter(data)
end