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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.
37 lines
1.2 KiB
Plaintext
37 lines
1.2 KiB
Plaintext
With a block given, calls the block with each successive codepoint from self;
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sets the position to end-of-stream;
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returns +self+.
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Each codepoint is the integer value for a character; returns self:
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codepoints = []
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strio = StringIO.new('hello')
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strio.each_codepoint {|codepoint| codepoints.push(codepoint) }
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strio.eof? # => true
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codepoints # => [104, 101, 108, 108, 111]
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codepoints = []
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strio = StringIO.new('тест')
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strio.each_codepoint {|codepoint| codepoints.push(codepoint) }
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codepoints # => [1090, 1077, 1089, 1090]
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codepoints = []
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strio = StringIO.new('こんにちは')
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strio.each_codepoint {|codepoint| codepoints.push(codepoint) }
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codepoints # => [12371, 12435, 12395, 12385, 12399]
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Position in the stream matters:
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codepoints = []
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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
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strio.each_codepoint {|codepoint| codepoints.push(codepoint) }
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codepoints # => [12435, 12395, 12385, 12399]
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When at end-of-stream, the block is not called:
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strio.eof? # => true
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strio.each_codepoint {|codepoint| 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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