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package mahonia
// ConvertString converts a string from UTF-8 to e's encoding.
func (e Encoder) ConvertString(s string) string {
dest := make([]byte, len(s)+10)
destPos := 0
for _, rune := range s {
retry:
size, status := e(dest[destPos:], rune)
if status == NO_ROOM {
newDest := make([]byte, len(dest)*2)
copy(newDest, dest)
dest = newDest
goto retry
}
if status == STATE_ONLY {
destPos += size
goto retry
}
destPos += size
}
return string(dest[:destPos])
}
// ConvertString converts a string from d's encoding to UTF-8.
func (d Decoder) ConvertString(s string) string {
bytes := []byte(s)
runes := make([]rune, len(s))
destPos := 0
for len(bytes) > 0 {
c, size, status := d(bytes)
if status == STATE_ONLY {
bytes = bytes[size:]
continue
}
if status == NO_ROOM {
c = 0xfffd
size = len(bytes)
status = INVALID_CHAR
}
bytes = bytes[size:]
runes[destPos] = c
destPos++
}
return string(runes[:destPos])
}
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