package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^(?=(?:[^A-Z\n]*[A-Z]){2,4}[^A-Z\n]*$).{6,12}$`)
var str = `Valid matches would be:
HamBurger
LeTtUce
TACOss
But invalid matches would be:
ABCDE1234
aBcDeFgHiJ
ADBC`
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/