Class: Krypt::Base64::Encoder
- Defined in:
- lib/krypt/codec/base64.rb
Overview
Base64-encodes any data written or read from it in the process.
Example: Base64-encode data and write it to a file
f = File.open("b64", "wb")
b64 = Krypt::Base64::Encoder.new(f)
b64 << "one"
b64 << "two"
b64.close # => contents in file will be encoded
Example: Reading from a file and Base64-encoding the data
f = File.open("document", "rb")
b64 = Krypt::Base64::Encoder.new(f)
b64data = b64.read # => result is encoded
b64.close
Instance Method Summary collapse
- #close ⇒ Object
-
#read(len = nil) ⇒ Object
call-seq: in.read() -> String or nil.
-
#write(data) ⇒ Object
(also: #<<)
call-seq: out.write(string) -> Integer.
Methods included from Krypt::BaseCodec
#generic_read, #generic_write, #update_buffer
Methods inherited from IOFilter
Constructor Details
This class inherits a constructor from Krypt::IOFilter
Instance Method Details
#close ⇒ Object
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# File 'lib/krypt/codec/base64.rb', line 82 def close generic_close super end |
#read(len = nil) ⇒ Object
call-seq:
in.read([len=nil]) -> String or nil
Reads from the underlying IO and Base64-encodes the data. Please see IO#read for details. Note that in-place reading into a buffer is not supported.
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# File 'lib/krypt/codec/base64.rb', line 65 def read(len=nil) read_len = len ? compute_encode_read_len(len) : nil generic_read(len, read_len) { |data| Krypt::Base64.encode(data) } end |
#write(data) ⇒ Object Also known as: <<
call-seq:
out.write(string) -> Integer
Base64-encodes string
and writes it to the underlying IO. Please see IO#write for further details.
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# File 'lib/krypt/codec/base64.rb', line 77 def write(data) generic_write(data, 3) { |data| Krypt::Base64.encode(data) } end |