1 files changed, 19 insertions, 0 deletions
diff --git a/components/plugins/lib.rs b/components/plugins/lib.rs
index a7d356f47ee..9017958ea39 100644
--- a/components/plugins/lib.rs
+++ b/components/plugins/lib.rs
@@ -50,3 +50,22 @@ pub fn plugin_registrar(reg: &mut Registry) {
     reg.register_lint_pass(box lints::InheritancePass as LintPassObject);
 }
 
+
+#[macro_export]
+macro_rules! match_ignore_ascii_case {
+    ( $value: expr: $( $string: expr => $result: expr ),+ _ => $fallback: expr, ) => {
+        match_ignore_ascii_case! { $value:
+            $( $string => $result ),+
+            _ => $fallback
+        }
+    };
+    ( $value: expr: $( $string: expr => $result: expr ),+ _ => $fallback: expr ) => {
+        {
+            use std::ascii::AsciiExt;
+            match $value.as_slice() {
+                $( s if s.eq_ignore_ascii_case($string) => $result, )+
+                _ => $fallback
+            }
+        }
+    };
+}