diff --git a/dsl/README.md b/dsl/README.md
index a5bcf22..6220947 100644
--- a/dsl/README.md
+++ b/dsl/README.md
@@ -113,3 +113,13 @@ this is the trait which differentiates "a thing" from
 * e1: Unexpected '('
 * e2: Unexpected 'b'
 * e3: Unexpected 'd'
+
+## todo
+
+### operators
+
+* replace: `(:= :name :value1 :valueN)`
+* append:  `(:+ :name :value2 :valueN)`
+* filter:  `(:- :name :value2 :valueN)`
+* map:     `(:* :name op)`
+* reduce:  `(:/ :name op)`
diff --git a/tui/src/tui_engine/tui_event.rs b/tui/src/tui_engine/tui_event.rs
index 93dd4ff..f0ab399 100644
--- a/tui/src/tui_engine/tui_event.rs
+++ b/tui/src/tui_engine/tui_event.rs
@@ -27,7 +27,6 @@ impl TuiKey {
                 let mut modifiers = KeyModifiers::NONE;
                 let mut tokens    = symbol[1..].split(Self::SPLIT).peekable();
                 while let Some(token) = tokens.next() {
-                    println!("{token}");
                     if tokens.peek().is_some() {
                         match token {
                             "ctrl"  | "Ctrl"  | "c" | "C" => modifiers |= KeyModifiers::CONTROL,