package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^(?:(?:To:[^<>,;]+(?:<[^<>]+>)?(?:,[^<>,;]+(?:<[^<>]+>)?){2,})|(?:CC:[^<>,;]+(?:<[^<>]+>)?(?:,[^<>,;]+(?:<[^<>]+>)?){2,}))(?!.*@(example1\.com|example2\.org|example3\.net)\b)`)
var str = `To:jerry@example1.com,larry@example1.com,berry@example1.com`
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/