Fix npm#3 Process backspace characters properly in raw reads

isaacs · May 11, 2012 · d746f75 · d746f75
1 parent ce40398
commit d746f75
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/lib/read.js b/lib/read.js
@@ -128,6 +128,11 @@ function rawRead (def, timeout, delim, silent, num, cb) {
       case "": // probably just a \r that was ignored.
         break
 
+      case "\u007f": // backspace
+        val = val.substr(0, val.length - 1)
+        if (!silent) process.stdout.write('\b \b')
+        break
+
       case "\u0004": // EOF
       case delim:
         raw(false)
@@ -151,7 +156,8 @@ function rawRead (def, timeout, delim, silent, num, cb) {
         buffer = ""
         if (!silent) process.stdout.write(c)
 
-        // explicitly process a delim if we have enough chars.
+        // explicitly process a delim if we have enough chars
+        // and stop the processing.
         if (num && val.length >= num) D(delim)
         break
     }