Support route pattern quantity match (i.e. curly braces in regex expression) #230
Description
Attempting to use routes that specify the quantity to match in regex does not work. This looks to be related to the way finding curly braces (i.e. { and }) works in pattern segments:
Line 628 in 49e7138
Here are two routes that fail in different ways from my expectations:
package main
import (
"fmt"
"net/http"
"github.com/go-chi/chi"
)
func handler(w http.ResponseWriter, req *http.Request) {
w.WriteHeader(200)
w.Write([]byte("HERE"))
}
func main() {
r := chi.NewRouter()
r.MethodFunc("GET", "/{first:[a-z]{4}}", handler) // Does not panic at runtime, however I except it to match only requests with four a-z characters.
r.MethodFunc("GET", "/{first:[a-z]{4}}/{second}", handler) // Panics at runtime, slice bounds out of range. I expect it to match only requests where the first URI segment has four a-z characters and some value in the second segment. Comment out to test the first defined route.
fmt.Println("Listening...")
http.ListenAndServe(":3000", r)
}