package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^(?<id>foo|bar)(?: (?&id))*$`)
var str = `Valid instances are:
foo
bar
foo foo
foo bar
foo foo bar
foo bar foo bar
Invalid instances:
foofoo bar
baz foo bar
foo bar baz`
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/