Trim trailing spaces in Xcode

Question

Is there a way to force Xcode to trim trailing whitespaces when I save file?

I'm using version 3.1.3 if that matters.

Answer 1

You can create a script and bind it to a keyboard shortcut:

• Select Scripts Menu > Edit User Scripts...
• Press the + button and select New Shell Script
• Give it a name like "Strip Trailing Spaces", and give it a shortcut like ⌃⇧R.
• Set Input to "Selection" and Output to "Replace Selection"

Then enter the following script:

#!/usr/bin/perl

while (<>) {
    s/\s+$//;
    print "$_\n";
}