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45 lines
736 B
45 lines
736 B
package mahonia |
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import "unicode/utf8" |
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func init() { |
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RegisterCharset(&Charset{ |
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Name: "UTF-8", |
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NewDecoder: func() Decoder { return decodeUTF8Rune }, |
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NewEncoder: func() Encoder { return encodeUTF8Rune }, |
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}) |
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} |
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func decodeUTF8Rune(p []byte) (c rune, size int, status Status) { |
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if len(p) == 0 { |
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status = NO_ROOM |
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return |
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} |
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if p[0] < 128 { |
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return rune(p[0]), 1, SUCCESS |
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} |
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c, size = utf8.DecodeRune(p) |
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if c == 0xfffd { |
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if utf8.FullRune(p) { |
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status = INVALID_CHAR |
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return |
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} |
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return 0, 0, NO_ROOM |
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} |
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status = SUCCESS |
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return |
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} |
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func encodeUTF8Rune(p []byte, c rune) (size int, status Status) { |
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size = utf8.RuneLen(c) |
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if size > len(p) { |
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return 0, NO_ROOM |
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} |
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return utf8.EncodeRune(p, c), SUCCESS |
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}
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