package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^\b(?!_) # start with a word character excluding underscore
(?=[^\d\n]*\d) # look ahead for any non-digits followed by a digit
(?=[^A-Z\n]*[A-Z]) # look ahead for an upper preceded by any non-upper
(?=[^a-z\n]*[a-z]) # look ahead for an lower preceded by any non-lower
(?=.*[!{}\[\]@\#$%^&*()<>_~+\-]) # one special character preceded by any characters
.{8,15}$ # 8 to 15 characters until the end`)
var str = `@TestHey123!
TestHey@123!
`
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/