package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(?(DEFINE)
(?<token>What\sis|plus|minus|multiplied\sby|divided\sby)
)
^\g<token>(?:\s+\g<token>)*$`)
var str = `What is plus divided by
What is 5 plus 2 divided by 4`
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/