package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(?!,[^,]*,),|(^[^,]*?),`)
var str = `asdsa,sad,,sad,sa,d,as,d,asd,asd
,12121,2,1,2,1,2,1,2
asd,asd,,sad,`
var substitution = "$1*"
fmt.Println(re.ReplaceAllString(str, substitution))
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/