go-utf8/runereader.go

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package utf8
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import (
"io"
)
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var _ io.RuneReader = WrapRuneReader(nil)
var _ io.RuneReader = NewRuneReader(nil)
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// A utf8.RuneReader implements the io.RuneReader interface by reading from an io.Reader.
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type RuneReader struct {
reader io.Reader
}
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func WrapRuneReader(reader io.Reader) RuneReader {
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return RuneReader{
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reader: reader,
}
}
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func NewRuneReader(reader io.Reader) *RuneReader {
var runereader RuneReader = WrapRuneReader(reader)
return &runereader
}
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func (receiver RuneReader) ReadRune() (rune, int, error) {
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reader := receiver.reader
if nil == reader {
return 0, 0, errNilReader
}
return ReadRune(reader)
}