package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(?<=@3=)(\w++).+>>.+(?<=@3=)(?(1)(?!\1@4)\w++|\w++)`)
var str = `@1=a@2=b@3=c@4=d >> @1=a@2=b@3=c1@4=d
@1=a@2=b@3=c1@4=d >> @1=a@2=b@3=c@4=d
@1=a@2=b@3=c@4=d >> @1=a@2=b@3=c@4=d
`
for i, match := range re.FindAllString(str, -1) {
fmt.Println(match, "found at index", i)
}
}
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/