Added the hk command

README.md

@@ -29,8 +29,8 @@ TODO (Bugz):
 ## sqishrc (Config)
 See the included sqishrc file included for comments, and copy it as ~/.sqishrc for use (optionnal).
 
-## Built-in shortcuts
-### As Hotkeys
+## Built-ins
+### Hotkeys
 Some shortcuts are built in. They may be unique to Sqish or be copied from Zsh for example.
 * Ctrl+Q or Ctrl+D : Quits the shell immediatly
 * Ctrl+U : Clears currently written line
@@ -47,5 +47,9 @@ Some shortcuts are built in. They may be unique to Sqish or be copied from Zsh f
 * !12 : Returns command number 12 from history (Replace the number 12 with any number from history). You can add commands after it, like: "!12 | grep squirrel"
 * !! : Appends the previous command to the current line. Same principle as !12.
 
-
-
+### Built-in commands
+* hk <LETTER from A to Z> <command> : For the current session, records the hotkey Alt+LETTER to run the command given. Does not run the command itself. Takes precedence over config-defined hotkeys. For example, after running :
+```
+hk a ls -ltr
+```
+...pressing Alt+A would run "ls -ltr" directly, for the current session. 

src/lib.rs

@@ -128,7 +128,37 @@ pub mod shell {
         return Ok(CmdOutput::new_empty());
     }
 
+    fn read_hotkeys(hotkeys: &HashMap<String, String>) -> HashMap<String, String> {
+        //Read the env vars
+        //and add hotkeys as we find them
+        let mut hm = hotkeys.clone();
+        for (key, value) in env::vars() {
+            if key.starts_with("SQISH_HK_") && key.chars().count() == 10 {
+                let letter = key.chars().last().unwrap();
+                &hm.insert(String::from(letter).to_lowercase(), value.clone());
+            }
+        }
+        return hm;
+    }
 
+    fn set_hotkey(args: Vec<String>) {
+        if args.len() < 2 { return (); }
+        let letter = args
+            .first()
+            .unwrap()
+            .to_lowercase();
+        let mut command = args[1..]
+            .join(" ");
+            
+        command.push_str("\n");
+
+        let mut hm = HashMap::new();
+        let key = format!("SQISH_HK_{}", letter.to_uppercase());
+        hm.insert(key, command); 
+        set_envvars(&hm);
+    }
+
+        
     fn process_line(input: &str) -> Result<CmdOutput, CmdOutput> {
         let mut commands = input.trim().split("|").peekable();
         let mut previous_command = None;
@@ -161,6 +191,10 @@ pub mod shell {
                     export_var(args.join(" "))?;
                     print!("\r\n");
                 },
+                "hk" => {
+                    set_hotkey(args);
+                    print!("\r\nHotkey registered.\r\n");
+                }
                 command => {
                     if commands.peek().is_some() {
                         let stdin  = match previous_command {
@@ -714,6 +748,9 @@ pub mod shell {
         elems.stdout.flush();
         set_envvars(&elems.conf.env);
 
+        //Read hotkeys set as environment variables
+        elems.conf.hotkeys = read_hotkeys(&elems.conf.hotkeys);
+
         if elems.conf.init != String::from("") {
             run_cmd(&mut String::from(&elems.conf.init), &mut elems.current_number, &mut elems.conf, &mut elems.stdout);
         } else {
@@ -728,6 +765,7 @@ pub mod shell {
                 }
                 Key::Char('\n') => {
                     enter(&mut elems);
+                    elems.conf.hotkeys = read_hotkeys(&elems.conf.hotkeys);
                 },
 
                 Key::Ctrl('q'|'d') => {