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C99 does not declare ways to designate the charset encoding of the source file. We can assume just US-ASCII characters will be safe.
35 lines
1.2 KiB
Plaintext
35 lines
1.2 KiB
Plaintext
With a block given, calls the block with each remaining byte in the stream;
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positions the stream at end-of-file;
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returns +self+:
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bytes = []
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strio = StringIO.new('hello') # Five 1-byte characters.
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strio.each_byte {|byte| bytes.push(byte) }
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strio.eof? # => true
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bytes # => [104, 101, 108, 108, 111]
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bytes = []
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strio = StringIO.new('тест') # Four 2-byte characters.
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strio.each_byte {|byte| bytes.push(byte) }
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bytes # => [209, 130, 208, 181, 209, 129, 209, 130]
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bytes = []
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strio = StringIO.new('こんにちは') # Five 3-byte characters.
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strio.each_byte {|byte| bytes.push(byte) }
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bytes # => [227, 129, 147, 227, 130, 147, 227, 129, 171, 227, 129, 161, 227, 129, 175]
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The position in the stream matters:
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bytes = []
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strio = StringIO.new('こんにちは')
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strio.getc # => "こ"
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strio.pos # => 3 # 3-byte character was read.
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strio.each_byte {|byte| bytes.push(byte) }
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bytes # => [227, 130, 147, 227, 129, 171, 227, 129, 161, 227, 129, 175]
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If at end-of-file, does not call the block:
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strio.eof? # => true
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strio.each_byte {|byte| fail 'Boo!' }
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strio.eof? # => true
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With no block given, returns a new {Enumerator}[rdoc-ref:Enumerator].
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