I can't get this simple LLDB alias to work

Question

I want to create an LLDB alias ps, such that

 ps foo

becomes

 print [self foo]

I\'ve been watching the L

Answer 1

It seems arguments (%1, %2, etc) doesn't work to alias an expression. There is a workaround by using a regular expression instead:

command regex ps 's/(.+)/print [self %1]/'

It makes an alias ps for the above regular expression:

(lldb) ps firstName
print [self firstName]
(NSString *) $1 = 0x06e64e20 @"John"

However this will last till the debug session ends. You'll have to enter it again for the next debug session. If you want your ps command to persist through debug sessions, you'll have to save it in your ~/.lldbinit file (if it doesn't exist, create one).

See llvm blog for more deails about regex command.