package main

import (
 "fmt"
 "regexp"
)

func main() {
    pattern := regexp.MustCompile(`o\w*g`)
    fmt.Println(pattern.FindString("oogenesis")) // returns ""
    fmt.Println(pattern.FindString("ck"))        // returns "ook"
    fmt.Println(pattern.FindString("oocyst"))    // returns ""
    fmt.Println(pattern.FindString("book"))      // returns "ook"}
    match, what := regexp.MatchString("p([a-z]+)ch", "peach")
    fmt.Println(match)
    fmt.Println(what)
}