func (re *Regexp) find(b []byte, n int, offset int) (match []int) {
if n == 0 {
b = []byte{0}
}
ptr := unsafe.Pointer(&b[0])
matchData := re.matchData
capturesPtr := unsafe.Pointer(&(matchData.indexes[matchData.count][0]))
numCaptures := int32(0)
numCapturesPtr := unsafe.Pointer(&numCaptures)
pos := int(C.SearchOnigRegex((ptr), C.int(n), C.int(offset), C.int(ONIG_OPTION_DEFAULT), re.regex, re.region, re.errorInfo, (*C.char)(nil), (*C.int)(capturesPtr), (*C.int)(numCapturesPtr)))
if pos >= 0 {
if numCaptures <= 0 {
panic("cannot have 0 captures when processing a match")
}
match2 := matchData.indexes[matchData.count][:numCaptures*2]
match = make([]int, len(match2))
for i := range match2 {
match[i] = int(match2[i])
}
numCapturesInPattern := int32(C.onig_number_of_captures(re.regex)) + 1
if numCapturesInPattern != numCaptures {
log.Fatalf("expected %d captures but got %d\n", numCapturesInPattern, numCaptures)
}
}
return
}
func (re *Regexp) match(b []byte, n int, offset int) bool {
re.ClearMatchData()
if n == 0 {
b = []byte{0}
}
ptr := unsafe.Pointer(&b[0])
pos := int(C.SearchOnigRegex((ptr), C.int(n), C.int(offset), C.int(ONIG_OPTION_DEFAULT), re.regex, re.region, re.errorInfo, (*C.char)(nil), (*C.int)(nil), (*C.int)(nil)))
return pos >= 0
}