ctrl+delete

1 files changed, 36 insertions, 2 deletions

diff --git a/src/main.rs b/src/main.rs
index 5e1d847..9286653 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -88,6 +88,8 @@ pub struct Session {
     path_cache: PathCache,
     ctrlc: CtrlC,
 
+    debug_keystrokes: bool,
+
     /// n before end of history.len()
     /// 0 == not checking history
     history_visit: usize,
@@ -252,6 +254,23 @@ impl Session {
         cursor::move_cursor(Direction::Right, self.line.all_right());
         io::stdout().flush().unwrap();
     }
+
+    fn del_right_word(&mut self) {
+        let mut del = 0;
+        while let Some(x) = self.line.get_right()
+            && x == b' '
+        {
+            self.line.del_right();
+            del += 1;
+        }
+        while let Some(x) = self.line.get_right()
+            && x != b' '
+        {
+            self.line.del_right();
+            del += 1;
+        }
+        self.line.display_post(&vec![b' '; del]);
+    }
 }
 
 fn read1() -> u8 {
@@ -285,6 +304,7 @@ fn event_loop() {
         aliases: run::Aliases::new(),
         path_cache: Default::default(),
         ctrlc: Default::default(),
+        debug_keystrokes: false,
     };
 
     print!("{}", se.prompt());
@@ -303,6 +323,9 @@ fn event_loop() {
         };
 
         let mut se = session.lock().unwrap();
+        if se.debug_keystrokes {
+            println!("{}", buf.escape_ascii());
+        }
 
         match buf[0] {
             // Ctrl+A
@@ -351,8 +374,8 @@ fn event_loop() {
                         Err((crate::parse::ParseError::Eof, _)) => {
                             se.line.add(b'\n');
                             print!("\r\n> ");
-                            continue
-                        },
+                            continue;
+                        }
                         Err(e) => {
                             println!("{e:?}\n{}", se.prompt());
                             continue;
@@ -413,6 +436,10 @@ fn event_loop() {
                         seq.push(read1());
                     }
 
+                    if se.debug_keystrokes {
+                        println!("escape: {}", seq.escape_ascii());
+                    }
+
                     match seq[1] {
                         b'A' => {
                             // up
@@ -484,6 +511,13 @@ fn event_loop() {
 
                         _ => todo!("escape characters {}", seq[1..].escape_ascii()),
                     }
+                } else {
+                    if se.debug_keystrokes {
+                        println!("escape: {}", seq.escape_ascii());
+                    }
+                    if seq[0] == b'd' {
+                        se.del_right_word();
+                    }
                 }
             }