func (s *Stemmer) Process(input tokenizer.TokenChan) tokenizer.TokenChan {
return filter.StartFilter(input, func(token *tokenizer.Token, output tokenizer.TokenChan) {
str := token.Backing()
cs := C.CString(str)
defer C.free(unsafe.Pointer(cs))
end := C.stem(s.cstemmer, cs, C.int(len(str)-1)) + 1
output <- tokenizer.NewToken(str[0:end])
})
}
func (ps *PorterStemmer) Stem(s string) string {
cs := C.CString(s)
defer C.free(unsafe.Pointer(cs))
end := C.stem(ps.cstemmer, cs, C.int(len(s)-1)) + 1
return s[0:end]
}