Outsource link generation to helper macro

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

3 files changed, 19 insertions, 2 deletions

diff --git a/mqtt-format/src/v5/mod.rs b/mqtt-format/src/v5/mod.rs
index 9686509..a16e819 100644
--- a/mqtt-format/src/v5/mod.rs
+++ b/mqtt-format/src/v5/mod.rs
@@ -6,6 +6,7 @@ pub mod packets;
 pub mod properties;
 pub mod reason_code;
 pub mod strings;
+pub mod util;
 pub mod variable_header;
 
 pub type MResult<O> = winnow::PResult<O>;
diff --git a/mqtt-format/src/v5/properties.rs b/mqtt-format/src/v5/properties.rs
index b64885b..1f05429 100644
--- a/mqtt-format/src/v5/properties.rs
+++ b/mqtt-format/src/v5/properties.rs
@@ -52,12 +52,12 @@ macro_rules! define_properties {
             #[doc = ""] // newline
         )?
         $(
-            #[doc = std::concat!("[Specification](https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html#", $anker, ")")]
+            #[doc = $crate::v5::util::md_speclink!($anker)]
         )?
         pub struct $name < $lt > {
             $(
                 $(
-                    #[doc = std::concat!("[Specification](https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html#", $prop_anker, ")")]
+                    #[doc = $crate::v5::util::md_speclink!($prop_anker)]
                 )?
                 $prop_name: Option<$prop>
             ),*
diff --git a/mqtt-format/src/v5/util.rs b/mqtt-format/src/v5/util.rs
new file mode 100644
index 0000000..75c03eb
--- /dev/null
+++ b/mqtt-format/src/v5/util.rs
@@ -0,0 +1,16 @@
+macro_rules! speclink {
+    ($anker:literal) => {
+        std::concat!(
+            "https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html#",
+            $anker
+        )
+    };
+}
+pub(crate) use speclink;
+
+macro_rules! md_speclink {
+    ($anker:literal) => {
+        std::concat!("[Specification](", $crate::v5::util::speclink!($anker), ")")
+    };
+}
+pub(crate) use md_speclink;