feat: add a convenience function for repls, will be useful later!

coreutils/src/commands/tee.rs

@@ -39,7 +39,7 @@ impl Command for Tee {
         }
 
         let mut buffer = String::new();
-        while std::io::stdin().read_line(&mut buffer).unwrap_or(0) > 0 {
+        while boxutils::input::get_like_repl(&mut buffer) {
             for output in &mut writes {
                 let _ = output.write_all(buffer.as_bytes());
                 let _ = output.flush();

utils/src/input.rs

@@ -0,0 +1,4 @@
+// this function makes it so that an EOF (commonly used in pipes) stops the repl
+pub fn get_like_repl(buffer: &mut String) -> bool {
+    std::io::stdin().read_line(buffer).unwrap_or(0) > 0
+}

utils/src/lib.rs

@@ -1,4 +1,5 @@
 pub mod args;
 pub mod commands;
-pub mod registry;
 pub mod encoding;
+pub mod input;
+pub mod registry;