Allow rust tuple indexing

`lorem.0` is now supported
rouge-ruby · Sep 7, 2020 · f7a89c0 · f7a89c0
1 parent a9fdd44
commit f7a89c0
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diff --git a/lib/rouge/lexers/rust.rb b/lib/rouge/lexers/rust.rb
@@ -100,6 +100,7 @@ def macro_closed?
 
         rule %r/([.]\s*)?#{id}(?=\s*[(])/m, Name::Function
         rule %r/[.]\s*#{id}/, Name::Property
+        rule %r/[.]\s*\d+/, Num::Integer
         rule %r/(#{id})(::)/m do
           groups Name::Namespace, Punctuation
         end

diff --git a/spec/visual/samples/rust b/spec/visual/samples/rust
@@ -409,3 +409,8 @@ async fn learn_and_sing() {
     let song = learn_song().await;
     sing_song(song).await;
 }
+
+fn tuple_access() {
+    let t: (i32, i32) = (42, 13);
+    let f: t.0;
+}