1 files changed, 57 insertions, 2 deletions
diff --git a/src/urls.rs b/src/urls.rs
index 45720b6..80eba9e 100644
--- a/src/urls.rs
+++ b/src/urls.rs
@@ -1,5 +1,60 @@
-pub use warp::path;
-
 use crate::http::Response;
+pub use crate::url_map;
 
 pub type UrlMap = warp::filters::BoxedFilter<(Response,)>;
+
+#[doc(hidden)]
+#[macro_export]
+macro_rules! __url_map_inner {
+    (@root => $view:expr, $($rest:tt)*) => {{
+        let chain = $crate::__url_map_inner!(@one => $view);
+        $crate::__url_map_inner!(chain @rest $($rest)*)
+    }};
+    (@root $head:tt $(/ $tail:tt)* => $view:expr, $($rest:tt)*) => {{
+        let chain = $crate::__url_map_inner!(@one $head $(/ $tail)* => $view);
+        $crate::__url_map_inner!(chain @rest $($rest)*)
+    }};
+    (@root $head:tt $(/ $tail:tt)* $child:expr, $($rest:tt)*) => {{
+        let chain = $crate::__url_map_inner!(@one $head $(/ $tail)* $child);
+        $crate::__url_map_inner!(chain @rest $($rest)*)
+    }};
+
+    ($chain:ident @rest => $view:expr, $($rest:tt)*) => {{
+        let chain = $chain
+            .or($crate::__url_map_inner!(@one => $view))
+            .unify();
+        $crate::__url_map_inner!(chain @rest $($rest)*)
+    }};
+    ($chain:ident @rest $head:tt $(/ $tail:tt)* => $view:expr, $($rest:tt)*) => {{
+        let chain = $chain
+            .or($crate::__url_map_inner!(@one $head $(/ $tail)* => $view))
+            .unify();
+        $crate::__url_map_inner!(chain @rest $($rest)*)
+    }};
+    ($chain:ident @rest $head:tt $(/ $tail:tt)* $child:expr, $($rest:tt)*) => {{
+        let chain = $chain
+            .or($crate::__url_map_inner!(@one $head $(/ $tail)* $child))
+            .unify();
+        $crate::__url_map_inner!(chain @rest $($rest)*)
+    }};
+    ($chain:ident @rest) => { $chain };
+
+    (@one => $view:expr) => {
+        ::warp::path::end().map($view)
+    };
+    (@one $head:tt $(/ $tail:tt)* => $view:expr) => {
+        ::warp::path!($head $(/ $tail)*).map($view)
+    };
+    (@one $head:tt $(/ $tail:tt)* $child:expr) => {
+        ::warp::path!($head $(/ $tail)*).and($child)
+    };
+}
+
+#[macro_export]
+macro_rules! url_map {
+    ($($body:tt)*) => {{
+        use ::warp::Filter;
+        $crate::__url_map_inner!(@root $($body)*)
+            .boxed()
+    }};
+}