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With a block given, calls the block with each remaining byte in the stream;
positions the stream at end-of-file;
returns +self+:
bytes = []
strio = StringIO.new('hello') # Five 1-byte characters.
strio.each_byte {|byte| bytes.push(byte) }
strio.eof? # => true
bytes # => [104, 101, 108, 108, 111]
bytes = []
strio = StringIO.new('тест') # Four 2-byte characters.
strio.each_byte {|byte| bytes.push(byte) }
bytes # => [209, 130, 208, 181, 209, 129, 209, 130]
bytes = []
strio = StringIO.new('こんにちは') # Five 3-byte characters.
strio.each_byte {|byte| bytes.push(byte) }
bytes # => [227, 129, 147, 227, 130, 147, 227, 129, 171, 227, 129, 161, 227, 129, 175]
The position in the stream matters:
bytes = []
strio = StringIO.new('こんにちは')
strio.getc # => "こ"
strio.pos # => 3 # 3-byte character was read.
strio.each_byte {|byte| bytes.push(byte) }
bytes # => [227, 130, 147, 227, 129, 171, 227, 129, 161, 227, 129, 175]
If at end-of-file, does not call the block:
strio.eof? # => true
strio.each_byte {|byte| fail 'Boo!' }
strio.eof? # => true
With no block given, returns a new {Enumerator}[rdoc-ref:Enumerator].
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