fix(docs): fix broken relative link in rustdoc

1 files changed, 14 insertions, 0 deletions

diff --git a/src/lib.rs b/src/lib.rs
index cbaf94d..c2a1019 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,7 @@
 #![warn(missing_docs)]
 // This is an HTML parser. HTML can be untrusted input from the internet.
 #![forbid(unsafe_code)]
+#![doc = concat!("[the LICENSE file]: ", file_url!("LICENSE"))]
 #![doc = include_str!("../README.md")]
 
 pub mod attr;
@@ -19,3 +20,16 @@ pub use utils::State as InternalState;
 pub use emitter::{Comment, DefaultEmitter, Doctype, Emitter, EndTag, StartTag, Token};
 pub use error::Error;
 pub use tokenizer::{State, Tokenizer};
+
+/// Relative links in the README.md don't work in rustdoc, so we have to override them.
+macro_rules! file_url {
+    ($path:literal) => {
+        concat!(
+            env!("CARGO_PKG_REPOSITORY"),
+            "/tree/",
+            $path,
+            "?h=v",
+            env!("CARGO_PKG_VERSION")
+        )
+    };
+}