Re: Whats with the autoincrementation of a string

[LanX]

Think of every position as a wheel in a mechanical counter.

There are three kinds of wheels 0-9, a-z and A-Z which can be independently be chosen for each position.

Clearer now? =)

edit

perlop

       the increment is done as a string, preserving
       each character within its range, with carry:

           print ++($foo = '99');      # prints '100'
           print ++($foo = 'a0');      # prints 'a1'
           print ++($foo = 'Az');      # prints 'Ba'
           print ++($foo = 'zz');      # prints 'aaa'

[space_monk]

Not quite independently. Any numeric wheels must be at the back.

e.g. 'Aa00' will work, '00Aa' won't.

[LanX]

Sure, anything with leading digits which isn't a proper number is dealt by atoi in numeric context, IIRC that's due to some C legacy.

  DB<109> @a=a..c
 => ("a", "b", "c")

  DB<110> $a["  1x"]
 => "b"

plz note: only with no warnings!