move ansi escape code parsing into own module

2 files changed, 28 insertions, 1 deletions

diff --git a/src/run/builtin.rs b/src/run/builtin.rs
index 7ca1e5e..c080c93 100644
--- a/src/run/builtin.rs
+++ b/src/run/builtin.rs
@@ -487,7 +487,8 @@ impl Builtin for alias {
         let mut parse_fail = false;
         let mut alias_args = Vec::new();
         for arg in args {
-            match <Vec<crate::parse::ExpString> as crate::parse::Parse>::parse_from_bytes(&arg[..]) {
+            match <Vec<crate::parse::ExpString> as crate::parse::Parse>::parse_from_bytes(&arg[..])
+            {
                 Ok(mut parsed) => {
                     alias_args.append(&mut parsed);
                 }
@@ -539,3 +540,27 @@ impl Builtin for unalias {
         Ok(())
     }
 }
+
+pub struct debug;
+impl Builtin for debug {
+    fn name(&self) -> &str {
+        "debug"
+    }
+
+    fn io(
+        &self,
+        session: Arc<Mutex<Session>>,
+        args: &[BString],
+        _stdin: &mut dyn Read,
+        stdout: &mut dyn Write,
+    ) -> Result {
+        let mut se = session.lock().unwrap();
+        for arg in args {
+            match &arg[..] {
+                b"keys" | b"keystrokes" => se.debug_keystrokes = !se.debug_keystrokes,
+                _ => writeln!(stdout, "debug: unknown option {}", arg.escape_ascii())?,
+            }
+        }
+        Ok(())
+    }
+}
diff --git a/src/run/mod.rs b/src/run/mod.rs
index 36cd454..6fe0d45 100644
--- a/src/run/mod.rs
+++ b/src/run/mod.rs
@@ -539,6 +539,8 @@ const BUILTINS: &[&'static dyn Builtin] = &[
     &builtin::completion,
     &builtin::alias,
     &builtin::unalias,
+    #[cfg(debug_assertions)]
+    &builtin::debug,
 ];
 
 pub fn builtin_map() -> HashMap<BString, &'static dyn Builtin> {