34 lines
722 B
Go
34 lines
722 B
Go
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package netln
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import (
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"github.com/reiver/go-utf8"
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"errors"
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"fmt"
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"io"
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)
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// readRune deals with reading a single rune.
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//
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// It also makes sure that any error condition is represented as a Go error,
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// rather than a utf8.RuneError.
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//
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// It also wraps any errors, and provides a more appropriate error message.
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func readRune(reader io.Reader) (r rune, size int, err error) {
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r, size, err = utf8.ReadRune(reader)
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if nil != err && !errors.Is(err, io.EOF) {
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err = fmt.Errorf("problem reading UTF-8 character: %w", err)
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/////////////// RETURN
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return
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}
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if utf8.RuneError == r {
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err = fmt.Errorf("problem reading UTF-8 character: %w", errRuneError)
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/////////////// RETURN
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return
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}
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/////// RETURN
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return
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}
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