package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^http://127\.0\.0\.1:5000/countries(?:\?\w+=[\s\w]+(?:&\w+=[\s\w]+)*)?$`)
var str = `http://127.0.0.1:5000/x
http://127.0.0.1:5000/countries?
http://127.0.0.1:5000/countries?x
http://127.0.0.1:5000/countries?=
http://127.0.0.1:5000/countries?x=
http://127.0.0.1:5000/countries&
http://127.0.0.1:5000/countries&x
http://127.0.0.1:5000/countries&=
http://127.0.0.1:5000/countries&x=
http://127.0.0.1:5000/countries&x=x
http://127.0.0.1:5000/countries?code=AU?
http://127.0.0.1:5000/countries?name=Australia?x
http://127.0.0.1:5000/countries?name=Australia?=
http://127.0.0.1:5000/countries?name=Australia?x=
http://127.0.0.1:5000/countries?name=Australia?x=x
http://127.0.0.1:5000/countries?name=Australia&
http://127.0.0.1:5000/countries?name=Australia&x
http://127.0.0.1:5000/countries?name=Australia&=
http://127.0.0.1:5000/countries?name=Australia&x=
http://127.0.0.1:5000/countries
http://127.0.0.1:5000/countries?name=Australia
http://127.0.0.1:5000/countries?code=AU&name=Australia
http://127.0.0.1:5000/countries?name=New Zealand&calling_code=64
http://127.0.0.1:5000/countries?code=AU&name=Australia&capital=Canberra`
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/