feat: Add support for Submillisecond web framework (#419)

* feat: Add support for Submillisecond web framework

Adds support for Submillisecond, a Lunatic web framework

* fix: Add submillisecond as doctest feature flag

- adds submillisecond as a feature flag for maud for doctests

* fix: Update formatting for submillisecond

- fix formatting to match rustfmt for submillisecond_support

* Add missing line break

---------

Co-authored-by: Chris Wong <lambda.fairy@gmail.com>

docs/content/web-frameworks.md

@@ -8,6 +8,7 @@ Maud includes support for these web frameworks: [Actix], [Rocket], [Rouille], [T
 [Tide]: https://docs.rs/tide/
 [Axum]: https://docs.rs/axum/
 [Warp]: https://seanmonstar.com/blog/warp/
+[Submillisecond]: https://github.com/lunatic-solutions/submillisecond
 
 # Actix
 
@@ -197,3 +198,37 @@ async fn main() {
     warp::serve(hello).run(([127, 0, 0, 1], 8000)).await;
 }
 ```
+
+# Submillisecond
+
+Submillisecond support is available with the "submillisecond" feature:
+
+```toml
+# ...
+[dependencies]
+maud = { version = "*", features = ["submillisecond"] }
+# ...
+```
+
+This adds an implementation of `IntoResponse` for `Markup`/`PreEscaped<String>`.
+This then allows you to use it directly as a response!
+
+```rust,no_run
+use maud::{html, Markup};
+use std::io::Result;
+use submillisecond::{router, Application};
+
+fn main() -> Result<()> {
+    Application::new(router! {
+
+        GET "/hello" => helloworld
+    })
+    .serve("0.0.0.0:3000")
+}
+
+fn helloworld() -> Markup {
+    html! {
+        h1 { "Hello, World!" }
+    }
+}
+```

doctest/Cargo.toml

@@ -7,10 +7,11 @@ edition = "2021"
 [dependencies]
 actix-web = { version = "4.0.0-rc.2", default-features = false, features = ["macros"] }
 ammonia = "3"
-maud = { path = "../maud", features = ["actix-web", "rocket", "tide", "axum", "warp"] }
+maud = { path = "../maud", features = ["actix-web", "rocket", "tide", "axum", "warp", "submillisecond"] }
 pulldown-cmark = "0.8"
 rocket = "0.5"
 rouille = "3"
+submillisecond = "0.4.1"
 tide = "0.16"
 tokio = { version = "1.9.0", features = ["rt", "macros", "rt-multi-thread"] }
 axum = "0.7"

maud/Cargo.toml

@@ -27,6 +27,7 @@ futures-util = { version = "0.3.0", optional = true, default-features = false }
 actix-web-dep = { package = "actix-web", version = "4", optional = true, default-features = false }
 tide = { version = "0.16.0", optional = true, default-features = false }
 axum-core = { version = "0.4", optional = true }
+submillisecond = { version = "0.4.1", optional = true }
 http = { version = "1", optional = true }
 warp = { version = "0.3.6", optional = true }
 

maud/src/lib.rs

@@ -366,6 +366,27 @@ mod warp_support {
     }
 }
 
+#[cfg(feature = "submillisecond")]
+mod submillisecond_support {
+    use crate::PreEscaped;
+    use alloc::string::String;
+    use submillisecond::{
+        http::{header, HeaderMap, HeaderValue},
+        response::{IntoResponse, Response},
+    };
+
+    impl IntoResponse for PreEscaped<String> {
+        fn into_response(self) -> Response {
+            let mut headers = HeaderMap::new();
+            headers.insert(
+                header::CONTENT_TYPE,
+                HeaderValue::from_static("text/html; charset=utf-8"),
+            );
+            (headers, self.0).into_response()
+        }
+    }
+}
+
 #[doc(hidden)]
 pub mod macro_private {
     use crate::{display, Render};