[loren s]

help please I am trying to break up a stack of numbers with regex something like

73758584585868493djruhl4957849-94759585

to something like this

7375 8584585 86849 3 d jruhl 4957 849 -947 595 85

I tried (\d\d\d\d)(\d\d\d\d\d\d\d)
\1\2
and stuff like that but I am sure I am doing someting wrong for string of numbers finding. Is there a method to find a sets amount of numbers in a string search beside \d\d\d\d ??

[theolein]

The problem is that you don't seem to be clear about how exactly you want to break up that string. If you have a precise set based on specific rules, then regex can do it for you, otherwise you would probably be better off just using a string chunking function of a language like php or java.

[loren s]

well it is just the same for every line. I was just in need of the method to break up an ammount of numbers like say a telephone number ..

2075439987 to 207 543 9987 . what would the patteren be for that ? ### ### ####???

[Gee4orce]

In Perl you would write something like :

s/(\d{3})(\d{3})(\d{4})/\1 \2 \3/

s is the substitute operator
the first bit between / and / is the pattern to match (and () groups the matches)
the second bit between the / and / is what to replace it with, and \1 etc refers to the first () group that matched, etc.

[Turnpike]

yeah... which language are you using? that would change things a bit, perhaps. and for any one language, there are probably several ways to do it... it depends on what you are expecting for input and what you need for output.