fix: router with tilde #2004 (#2005)

Author: subwiz

operation.go

@@ -713,7 +713,7 @@ func parseMimeTypeList(mimeTypeList string, typeList *[]string, format string) e
 	return nil
 }
 
-var routerPattern = regexp.MustCompile(`^(/[\w./\-{}\(\)+:$]*)[[:blank:]]+\[(\w+)]`)
+var routerPattern = regexp.MustCompile(`^(/[\w./\-{}\(\)+:$~]*)[[:blank:]]+\[(\w+)]`)
 
 // ParseRouterComment parses comment for given `router` comment string.
 func (operation *Operation) ParseRouterComment(commentLine string, deprecated bool) error {

operation_test.go

@@ -217,6 +217,15 @@ func TestParseRouterCommentNoColonSignAtPathStartErr(t *testing.T) {
 	assert.Error(t, err)
 }
 
+func TestParseRouterCommentWithTilde(t *testing.T) {
+	t.Parallel()
+
+	comment := `@Router /customer/{id}/~last-name [patch]`
+	operation := NewOperation(nil)
+	err := operation.ParseComment(comment, nil)
+	assert.NoError(t, err)
+}
+
 func TestParseRouterCommentMethodSeparationErr(t *testing.T) {
 	t.Parallel()