Support pastes and meta-backspace

lib/readline.js

@@ -503,6 +503,7 @@ Interface.prototype._ttyWrite = function(s, key) {
         break;
 
       case 'd': // delete forward word
+      case 'delete':
         if (this.cursor < this.line.length) {
           next_word = this.line
             .slice(this.cursor, this.line.length)
@@ -525,6 +526,18 @@ Interface.prototype._ttyWrite = function(s, key) {
           this._refreshLine();
         }
         break;
+
+      case 'backspace': // delete backwards to a word boundary
+        if (this.cursor !== 0) {
+          var leading = this.line.slice(0, this.cursor);
+          var match = leading.match(/\s?((\W+|\w+)\s*)$/);
+          leading = leading.slice(0, leading.length - match[1].length);
+          this.line = leading + this.line.slice(this.cursor, this.line.length);
+          this.cursor = leading.length;
+          this._refreshLine();
+        }
+        break;
+
     }
 
   } else {

lib/tty_posix.js

@@ -122,27 +122,31 @@ ReadStream.prototype._emitKey = function(s) {
     // tab
     key.name = 'tab';
 
-  } else if (s === '\b' || s === '\x7f') {
+  } else if (s === '\b' || s === '\x7f' ||
+             s === '\x1b\x7f' || s === '\x1b\b') {
     // backspace or ctrl+h
     key.name = 'backspace';
+    key.meta = (s.charAt(0) === '\x1b');
 
-  } else if (s === '\x1b') {
+  } else if (s === '\x1b' || s === '\x1b\x1b') {
     // escape key
     key.name = 'escape';
+    key.meta = (s.length === 2);
 
-  } else if (s === ' ') {
+  } else if (s === ' ' || s === '\x1b ') {
     key.name = 'space';
+    key.meta = (s.length === 2);
 
   } else if (s <= '\x1a') {
     // ctrl+letter
     key.name = String.fromCharCode(s.charCodeAt(0) + 'a'.charCodeAt(0) - 1);
     key.ctrl = true;
 
-  } else if (s >= 'a' && s <= 'z') {
+  } else if (s.length === 1 && s >= 'a' && s <= 'z') {
     // lowercase letter
     key.name = s;
 
-  } else if (s >= 'A' && s <= 'Z') {
+  } else if (s.length === 1 && s >= 'A' && s <= 'Z') {
     // shift+letter
     key.name = s.toLowerCase();
     key.shift = true;
@@ -254,7 +258,13 @@ ReadStream.prototype._emitKey = function(s) {
 
       /* misc. */
       case '[Z': key.name = 'tab'; key.shift = true; break;
+
     }
+  } else if (s.length > 1 && s[0] !== '\x1b') {
+    // Got a longer-than-one string of characters.
+    // Probably a paste, since it wasn't a control sequence.
+    Array.prototype.forEach.call(s, this._emitKey, this);
+    return;
   }
 
   // Don't emit a key if no name was found