Go regexp FindAllStringSubmatch
go, regex
Solution
the reason is that you can not obtain overlapping results. With regex engines that support lookahead you can use the trick: `(?=([0-9]+[dh]){2})` but go language does not support it.
If you want to obtain all results, I suggest you to use `FindAllStringIndex()` with `([0-9]+[dh])` and then determine all contiguous substrings with the offset.
Problem
here is my snippet of code in Go which can be found here http://play.golang.org/p/L1AcgHf3E4. ``` package main import ( "fmt" "regexp" ) func main() { reg := regexp.MustCompile("([0-9]+[dh]){2}") str := "2d3h5d" fmt.Println(reg.FindAllStringSubmatch(str, -1)) } ``` I'd expect the result to be `[[2d3h 3h] [3h5d 5d]]`, but it turned out to be `[[2d3h 3h]]`. Can you explain why? Thanks in advance.