package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)path.+?(?:foo=(\d+))(?![a-zA-Z\d])|path((?!foo).)*$`)
var str = `path?foo=67
path?foo=67&bar=hello
path?bar=bye&foo=1&baz=12
path?bar=123
path
path?foo=37signals
path?foo=-8
something?foo=1
pathfoo
`
var substitution = ""
fmt.Println(re.ReplaceAllString(str, substitution))
}
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/