[issue-2557] Add :from-:to range route formats

router.go

@@ -165,7 +165,7 @@ func (r *Router) Reverse(name string, params ...interface{}) string {
 				}
 				if n < ln && (route.Path[i] == '*' || (!hasBackslash && route.Path[i] == ':')) {
 					// in case of `*` wildcard or `:` (unescaped colon) param we replace everything till next slash or end of path
-					for ; i < l && route.Path[i] != '/'; i++ {
+					for ; i < l && route.Path[i] != '/' && route.Path[i] != '-'; i++ {
 					}
 					uri.WriteString(fmt.Sprintf("%v", params[n]))
 					n++
@@ -210,7 +210,11 @@ func (r *Router) Add(method, path string, h HandlerFunc) {
 	}
 
 	for i, lcpIndex := 0, len(path); i < lcpIndex; i++ {
-		if path[i] == ':' {
+		if path[i] == ':' || path[i] == '{' {
+			bracketsOpen := false
+			if path[i] == '{' {
+				bracketsOpen = true
+			}
 			if i > 0 && path[i-1] == '\\' {
 				path = path[:i-1] + path[i:]
 				i--
@@ -220,11 +224,15 @@ func (r *Router) Add(method, path string, h HandlerFunc) {
 			j := i + 1
 
 			r.insert(method, path[:i], staticKind, routeMethod{})
-			for ; i < lcpIndex && path[i] != '/'; i++ {
+			for ; i < lcpIndex && (path[i] != '/' && !(path[j-1] == '{' && path[i] == '}')); i++ {
 			}
 
 			pnames = append(pnames, path[j:i])
-			path = path[:j] + path[i:]
+			if bracketsOpen {
+				path = path[:j-1] + ":" + path[i+1:]
+			} else {
+				path = path[:j] + path[i:]
+			}
 			i, lcpIndex = j, len(path)
 
 			if i == lcpIndex {
@@ -660,7 +668,7 @@ func (r *Router) Find(method, path string, c Context) {
 				// act similarly to any node - consider all remaining search as match
 				i = l
 			} else {
-				for ; i < l && search[i] != '/'; i++ {
+				for ; i < l && search[i] != '/' && !(search[i] == '-' || search[i] == '.'); i++ {
 				}
 			}
 
@@ -714,7 +722,6 @@ func (r *Router) Find(method, path string, c Context) {
 	if currentNode == nil && previousBestMatchNode == nil {
 		return // nothing matched at all
 	}
-
 	// matchedHandler could be method+path handler that we matched or notFoundHandler from node with matching path
 	// user provided not found (404) handler has priority over generic method not found (405) handler or global 404 handler
 	var rPath string

router_test.go

@@ -728,6 +728,49 @@ func TestRouterParam(t *testing.T) {
 	}
 }
 
+func TestRouterRangeParam(t *testing.T) {
+	e := New()
+	r := e.router
+
+	r.Add(http.MethodGet, "/flights/{from}.{to}", handlerFunc)
+	r.Add(http.MethodGet, "/flights/{from}-{to}", handlerFunc)
+
+	var testCases = []struct {
+		name        string
+		whenURL     string
+		expectRoute interface{}
+		expectParam map[string]string
+	}{
+		{
+			name:        "route /flights/LAX.DEN to /flights/{from}.{to}",
+			whenURL:     "/flights/LAX.DEN",
+			expectRoute: "/flights/{from}.{to}",
+			expectParam: map[string]string{"from": "LAX", "to": "DEN"},
+		},
+		{
+			name:        "route /flights/LAX-DEN to /flights/{from}-{to}",
+			whenURL:     "/flights/LAX-DEN",
+			expectRoute: "/flights/{from}-{to}",
+			expectParam: map[string]string{"from": "LAX", "to": "DEN"},
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+
+			c := e.NewContext(nil, nil).(*context)
+			r.Find(http.MethodGet, tc.whenURL, c)
+
+			c.handler(c)
+			assert.Equal(t, tc.expectRoute, c.Get("path"))
+			for param, expectedValue := range tc.expectParam {
+				assert.Equal(t, expectedValue, c.Param(param))
+			}
+			checkUnusedParamValues(t, c, tc.expectParam)
+		})
+	}
+}
+
 func TestRouter_addAndMatchAllSupportedMethods(t *testing.T) {
 	var testCases = []struct {
 		name            string