1 files changed, 10 insertions, 3 deletions
diff --git a/src/run/mod.rs b/src/run/mod.rs
index 64522d9..3420c30 100644
--- a/src/run/mod.rs
+++ b/src/run/mod.rs
@@ -457,10 +457,17 @@ impl Executor {
         stdout: OutputWriter,
     ) -> SpawnedCmd {
         for branch in c.branches.into_iter() {
-            // TODO: do not compile every time
-            if let Ok(compiled) = branch.pattern.try_compile()
-                && compiled.matches(&c.discriminant)
+            if let Ok(compiled) = Session::cached_regex(self.se.as_ref(), branch.pattern)
+                && let Some(mtch) = compiled.run(&c.discriminant)
             {
+                // put submatches into variables
+                if !mtch.submatches.is_empty() {
+                    let mut se = self.se.lock().unwrap();
+                    for (var, match_loc) in mtch.submatches.into_iter() {
+                        let val = c.discriminant[match_loc].to_vec();
+                        se.vars.set(var, val);
+                    }
+                }
                 return self.execute_block(branch.block, stdin, stdout);
             }
         }