package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^foo\.bar\.lib(?:\..*)?(?<!unsafe)\.\w+$`)
var str = `foo.bar.lib.Main
foo.bar.lib.impl.Main
foo.bar.libxxx.Main
foo.bar.libxxx.impl.Main
foo.bar.lib.unsafe.Unsafe
foo.bar.lib.unsafe.Unsafe
foo.bar.libxxx.unsafe.Unsafe
foo.bar.lib.util.Main
foo.bar.lib.impl.util.Main
foo.bar.libxxx.util.Main
foo.bar.libxxx.impl.util.Main
foo.bar.lib.util.unsafe.Unsafe
foo.bar.lib.util.unsafe.Unsafe
foo.bar.libxxx.util.unsafe.Unsafe`
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/