mirror of https://github.com/ouqiang/gocron
79 lines
1.1 KiB
Go
79 lines
1.1 KiB
Go
|
package mahonia
|
||
|
|
|
||
|
|
// Converters for GBK encoding.
|
||
|
|
|
||
|
|
func init() {
|
||
|
|
RegisterCharset(&Charset{
|
||
|
|
Name: "GBK",
|
||
|
|
Aliases: []string{"GB2312"}, // GBK is a superset of GB2312.
|
||
|
|
NewDecoder: func() Decoder {
|
||
|
|
return decodeGBKRune
|
||
|
|
},
|
||
|
|
NewEncoder: func() Encoder {
|
||
|
|
return encodeGBKRune
|
||
|
|
},
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
func decodeGBKRune(p []byte) (r rune, size int, status Status) {
|
||
|
|
if len(p) == 0 {
|
||
|
|
status = NO_ROOM
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
b := p[0]
|
||
|
|
if b < 128 {
|
||
|
|
return rune(b), 1, SUCCESS
|
||
|
|
}
|
||
|
|
|
||
|
|
if len(p) < 2 {
|
||
|
|
status = NO_ROOM
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
c := uint16(p[0])<<8 + uint16(p[1])
|
||
|
|
r = rune(gbkToUnicode[c])
|
||
|
|
if r == 0 {
|
||
|
|
r = gbkToUnicodeExtra[c]
|
||
|
|
}
|
||
|
|
|
||
|
|
if r != 0 {
|
||
|
|
return r, 2, SUCCESS
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0xfffd, 1, INVALID_CHAR
|
||
|
|
}
|
||
|
|
|
||
|
|
func encodeGBKRune(p []byte, r rune) (size int, status Status) {
|
||
|
|
if len(p) == 0 {
|
||
|
|
status = NO_ROOM
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
if r < 128 {
|
||
|
|
p[0] = byte(r)
|
||
|
|
return 1, SUCCESS
|
||
|
|
}
|
||
|
|
|
||
|
|
if len(p) < 2 {
|
||
|
|
status = NO_ROOM
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
var c uint16
|
||
|
|
if r < 0x10000 {
|
||
|
|
c = unicodeToGBK[r]
|
||
|
|
} else {
|
||
|
|
c = unicodeToGBKExtra[r]
|
||
|
|
}
|
||
|
|
|
||
|
|
if c != 0 {
|
||
|
|
p[0] = byte(c >> 8)
|
||
|
|
p[1] = byte(c)
|
||
|
|
return 2, SUCCESS
|
||
|
|
}
|
||
|
|
|
||
|
|
p[0] = 0x1a
|
||
|
|
return 1, INVALID_CHAR
|
||
|
|
}
|