variable refactor: export builtin

1 files changed, 24 insertions, 1 deletions

diff --git a/src/run/builtin.rs b/src/run/builtin.rs
index e928d8b..c8224c0 100644
--- a/src/run/builtin.rs
+++ b/src/run/builtin.rs
@@ -461,7 +461,7 @@ impl Builtin for var {
         }
         let se = session.lock().unwrap();
         if let Some(val) = se.vars.lookup(&args[0]) {
-            stdout.write_all(val.as_slice())?;
+            stdout.write_all(val.as_ref())?;
             Ok(())
         } else {
             Err(Error::Exit(1))
@@ -965,3 +965,26 @@ impl Builtin for logo {
         Ok(())
     }
 }
+
+#[derive(Copy, Clone)]
+pub struct export;
+
+impl Builtin for export {
+    fn name(&self) -> &str {
+        "export"
+    }
+
+    fn io(
+        &self,
+        session: Arc<Mutex<Session>>,
+        args: &[BString],
+        _stdin: &mut dyn Read,
+        _stdout: &mut dyn Write,
+    ) -> Result {
+        let mut session = session.lock().unwrap();
+        for v in args.iter() {
+            session.vars.allow_export(&v, true);
+        }
+        Ok(())
+    }
+}