46 lines
736 B
Go
46 lines
736 B
Go
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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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