Expose route regexp

mux.go

@@ -10,6 +10,7 @@ import (
 	"net/http"
 	"path"
 	"regexp"
+	"sort"
 
 	"github.com/gorilla/context"
 )
@@ -305,6 +306,17 @@ func (r *Router) walk(walkFn WalkFunc, ancestors []*Route) error {
 	return nil
 }
 
+type routes []*Route
+
+func (r routes) Len() int           { return len(r) }
+func (r routes) Swap(i, j int)      { r[i], r[j] = r[j], r[i] }
+func (r routes) Less(i, j int) bool { return r[i].GetPriority() > r[j].GetPriority() }
+
+// SortRoutes sort routes by route priority
+func (r *Router) SortRoutes() {
+	sort.Sort(routes(r.routes))
+}
+
 // ----------------------------------------------------------------------------
 // Context
 // ----------------------------------------------------------------------------

route.go

@@ -35,6 +35,8 @@ type Route struct {
 	name string
 	// Error resulted from building a route.
 	err error
+	// Priority of this route
+	priority int
 
 	buildVarsFunc BuildVarsFunc
 }
@@ -127,6 +129,19 @@ func (r *Route) GetName() string {
 	return r.name
 }
 
+// Priority -----------------------------------------------------------------------
+
+// Priority sets the priority for the route
+func (r *Route) Priority(priority int) *Route {
+	r.priority = priority
+	return r
+}
+
+// GetPriority returns the priority for the route.
+func (r *Route) GetPriority() int {
+	return r.priority
+}
+
 // ----------------------------------------------------------------------------
 // Matchers
 // ----------------------------------------------------------------------------
@@ -342,6 +357,39 @@ func (r *Route) PathPrefix(tpl string) *Route {
 	return r
 }
 
+// PathStrip ------------------------------------------------------------------
+
+// PathStrip returns a regexp for the URL path.
+// See Route.Path() for details on the tpl argument.
+func (r *Route) PathStrip(tpl string) (*regexp.Regexp, error) {
+	rr, err := newRouteRegexp(tpl, false, false, false, r.strictSlash)
+	if err == nil {
+		return rr.regexp, nil
+	} else {
+		return nil, err
+	}
+}
+
+// PathPrefixStrip ------------------------------------------------------------------
+
+// PathPrefixStrip returns a regexp for the URL path prefix. This matches if the given
+// template is a prefix of the full URL path. See Route.Path() for details on
+// the tpl argument.
+//
+// Note that it does not treat slashes specially ("/foobar/" will be matched by
+// the prefix "/foo") so you may want to use a trailing slash here.
+//
+// Also note that the setting of Router.StrictSlash() has no effect on routes
+// with a PathPrefix matcher.
+func (r *Route) PathPrefixStrip(tpl string) (*regexp.Regexp, error) {
+	rr, err := newRouteRegexp(tpl, false, true, false, r.strictSlash)
+	if err == nil {
+		return rr.regexp, nil
+	} else {
+		return nil, err
+	}
+}
+
 // Query ----------------------------------------------------------------------
 
 // Queries adds a matcher for URL query values.