History callbacks now allow piping

src/shell/history.rs

@@ -20,6 +20,8 @@ pub fn write_to_history(command: &str) -> Result<(), std::io::Error> {
         Err(_) => 1
     };
 
+    let command = command.replace('\n', "\\n");
+
     writeln!(file, "{} {}", number, command.trim())?;
     return Ok(())
 }
@@ -93,12 +95,17 @@ pub fn get_hist_from_number(number: &i32) -> Option<String> {
 
 pub fn treat_history_callback(line: &str) -> Option<String> {
     let mut mystring = String::from(line);
-    mystring = mystring.trim().to_string();
+    let temp = mystring.split_whitespace().collect::<Vec<&str>>();
+    let mystring = temp.first().unwrap_or(&line);
     let mut chars = mystring.chars();
+    let args = &temp[1..];
     //Skip the !
     chars.next();
     let mynbr: i32 = chars.as_str().parse().unwrap();
-    get_hist_from_number(&mynbr)
+    match get_hist_from_number(&mynbr) {
+        Some(h) => return Some(format!("{} {}", h, args.join(" "))),
+        None => return None,
+    }
 }
 
 pub fn get_prev_arg() -> Option<String> {