I forgor to push something

src/main.rs

@@ -44,48 +44,33 @@ fn main() {
 
     let initial_polling_rate: u64 = 50;
     let initial_scroll_left: bool = true;
-
+    if args.autoscroll {
     // polling thread
     thread::spawn(move || {
         let mut polling_rate = initial_polling_rate;
         let mut scroll_left = initial_scroll_left;
         let device_state = DeviceState::new();
 
-        loop {
+            loop {
-            if args.autoscroll {
+                // Poll for input
-                
+                let keys = device_state.get_keys(); // poll the keys
-                match rx.try_recv() {
+                (polling_rate, scroll_left) = detect_keys(keys, polling_rate, scroll_left);
-                    Ok((new_rate, new_scroll)) => {
+                let _ = tx.send((polling_rate, scroll_left));
-                        polling_rate = new_rate;
+                thread::sleep(Duration::from_millis(100)); // poll every 50 ms
-                        scroll_left = new_scroll;
-                    }
-                    Err(mpsc::TryRecvError::Empty) => {
-                        //eprintln!("No new data. ;(");
-                    }
-                    Err(mpsc::TryRecvError::Disconnected) => {
-                        eprintln!("Channel has been closed.");
-                        break;
-                    }
-                    }
             }
-            // Poll for input
-            let keys = device_state.get_keys(); // poll the keys
-            (polling_rate, scroll_left) = detect_keys(keys, polling_rate, scroll_left);
-            let _ = tx.send((polling_rate, scroll_left));
-            thread::sleep(Duration::from_millis(100)); // poll every 50 ms
-        }
-        
     });
+    }
     // main thread
     let mut polling_rate = initial_polling_rate;
     let mut scroll_left = initial_scroll_left;
     loop {
         // Get data from the polling thread
-        
         match rx.try_recv() {
             Ok((new_rate, new_scroll)) => {
                 polling_rate = new_rate;
-                scroll_left = new_scroll;
+                if !args.autoscroll {
+                    scroll_left = new_scroll;
+                }
             }
             Err(mpsc::TryRecvError::Empty) => {
                 //eprintln!("No new data. ;(");
@@ -99,12 +84,10 @@ fn main() {
 
         println!("i: {}, upd: {}ms, scrll: {}, {}", {i +=1; i}, polling_rate, either!(scroll_left => "L"; "R"), input);
 
-        // Autoscroll: Autoscroll automatically toggles ths scrolling direction when the scrolling reaches a space.
+        // Autoscroll: Autoscroll automatically toggles ths scrolling direction when the scrolling reaches a nonspace.
         if args.autoscroll {
-            if input.chars().nth(input.len()) == Some(' ') {
+            if !char::is_whitespace(input.chars().nth(0).unwrap()) | !char::is_whitespace(input.chars().nth(input.len() - 1).unwrap()) {
                 scroll_left = !scroll_left;
-                // inform the other thread of the new state of scroll_left
-                tx_clone.send((polling_rate, scroll_left));
             }
         }
 
@@ -118,7 +101,7 @@ fn main() {
 }
 
 fn shift_left(mut input: String) -> String {
-    let tmp: char = input.chars().nth(0).expect("char");
+    let tmp: char = input.chars().nth(0).unwrap();
     input = input.substring(1,input.len()).to_string();
     input.push_str(&tmp.to_string());
     return input;
@@ -126,7 +109,7 @@ fn shift_left(mut input: String) -> String {
 
 fn shift_right(mut input: String) -> String {
     let tmp: String = input.substring(0, input.len() - 1).to_string();
-    input = input.chars().nth(input.len() - 1).expect("char").to_string();
+    input = input.chars().nth(input.len() - 1).unwrap().to_string();
     input.push_str(&tmp);
     return input;
 }