Updated README example so that it actually works

README.md

@@ -71,42 +71,42 @@ p "Available readers: #{readers}"
 
 # The order of tag types in poll arguments defines priority of tag types
 readers[0].poll(IsoDep::Tag, Mifare::Classic::Tag, Mifare::Ultralight::Tag) do |tag|
- begin
-  p "Applied #{tag.class.name}: #{tag}"
+ begin
+  p "Applied #{tag.class.name}: #{tag}"
 
  case tag
  when Mifare::Classic::Tag
- if auth(4, :key_a, "FFFFFFFFFFFF")
+ if tag.auth(4, :key_a, "FFFFFFFFFFFF")
  # Mifare::Classic::Tag.read method reads contents of last authenticated
  # block
  p "Contents of block 0x04: #{tag.read.unpack('H*').pop}"
  # Making random 16-byte string
  rnd = Array.new(16).map{rand(255)}.pack('C*')
  tag.write(rnd)
  p "New value: #{rnd.unpack('H*').pop}"
- processed! 
+ tag.processed!
  else
  p "Authentication failed!"
  end
  when Mifare::Ultralight::Tag
- p "Page 1: #{read(1).unpack('H*').pop}"
- processed!
+ p "Page 1: #{tag.read(1).unpack('H*').pop}"
+ tag.processed!
  when IsoDep::Tag
- select! ["F75246544101"].pack('H*')
+ tag.select! ["F75246544101"].pack('H*')
  # sending APDU command to tag using send_apdu method
  apdu = ['A00D010018B455CAF0F331AF703EFA2E2D744EC7E22AA64076CD19F6D0'].pack('H*')
- p send_apdu(apdu)
+ p tag.send_apdu(apdu)
 
  # sending APDU command with "<<" operator which is alias to send_apdu
  response = tag << apdu
  p "status word: #{response.sw.to_s(16)} data: #{response.data.unpack('H*').pop}"
- processed!
+ tag.processed!
  end
- rescue Exception => e
- p e
- end
-end
 
+ rescue Exception => e
+ p e
+ end
+end
 ```
 
 This example should provide similar output when you apply your tags to the NFC-reader:

examples/listen.rb

@@ -13,38 +13,39 @@ def p(str)
 
 # The order of tag types in poll arguments defines priority of tag types
 readers[0].poll(IsoDep::Tag, Mifare::Classic::Tag, Mifare::Ultralight::Tag) do |tag|
- begin
-  p "Applied #{tag.class.name}: #{tag}"
+ begin
+  p "Applied #{tag.class.name}: #{tag}"
 
  case tag
  when Mifare::Classic::Tag
- if auth(4, :key_a, "FFFFFFFFFFFF")
+ if tag.auth(4, :key_a, "FFFFFFFFFFFF")
  # Mifare::Classic::Tag.read method reads contents of last authenticated
  # block
  p "Contents of block 0x04: #{tag.read.unpack('H*').pop}"
  # Making random 16-byte string
  rnd = Array.new(16).map{rand(255)}.pack('C*')
  tag.write(rnd)
  p "New value: #{rnd.unpack('H*').pop}"
- processed! 
+ tag.processed!
  else
  p "Authentication failed!"
  end
  when Mifare::Ultralight::Tag
- p "Page 1: #{read(1).unpack('H*').pop}"
- processed!
+ p "Page 1: #{tag.read(1).unpack('H*').pop}"
+ tag.processed!
  when IsoDep::Tag
- select! ["F75246544101"].pack('H*')
+ tag.select! ["F75246544101"].pack('H*')
  # sending APDU command to tag using send_apdu method
  apdu = ['A00D010018B455CAF0F331AF703EFA2E2D744EC7E22AA64076CD19F6D0'].pack('H*')
- p send_apdu(apdu)
+ p tag.send_apdu(apdu)
 
  # sending APDU command with "<<" operator which is alias to send_apdu
  response = tag << apdu
  p "status word: #{response.sw.to_s(16)} data: #{response.data.unpack('H*').pop}"
- processed!
+ tag.processed!
  end
- rescue Exception => e
- p e
- end
-end
+
+ rescue Exception => e
+ p e
+ end
+end