Beefy Boxes and Bandwidth Generously Provided by pair Networks
"be consistent"

Re: Stuck in komplexer regex, at least for me

by ultibuzz (Monk)
on Mar 26, 2007 at 19:17 UTC ( #606641=note: print w/replies, xml ) Need Help??

in reply to Stuck in komplexer regex, at least for me

sorry for the bad explanation, i try to explain it better
the following regex will produce this

s/(?<=\d{2})0*(?<=\d{4})0+// output 215000007801 -> 2157801 300000324002 -> 30324002 890000457651 -> 89457651 210004563401 -> 214563401 201045139158 -> 201045139158

these 2 outputs are wrong
201045139158 -> 201045139158
215000007801 -> 2157801
shoud be
215000007801 -> 21507801
201045139158 -> 20145139158

now i try to explain the rule better,counting starts at 0
the 0 , 1 digits shoud be untouched
if the 2 digit is a 0 and the next digit is a 0 remove all 0 untill first non 0
if the 2 digit a 0 and the next is a non 0 remove the 0
if the 3 digit is a 0 and follows by a 0 then remove all 0 except the 0 at 3 digit
if the 3 digit is a 0 and the next digit is a non 0 remove only the 0
if the 4 digit is a 0 remove it and all following 0 untill non 0

i hope that makes it a bit clearer, i know its kinda confusing

kd ultibuzz

i will test the help u all already given tomorrow at office,thx alot

Replies are listed 'Best First'.
Re^2: Stuck in komplexer regex, at least for me
by xicheng (Sexton) on Mar 26, 2007 at 23:05 UTC
    Hi, You need an anchor '^' to make sure the matchings start from the beginning of your strings..and your requirements might be written into two patterns which would be much easier to understand(the order of two s/// expressions matters)..
    use warnings;
    use strict;
    while(<DATA>) {

      your right 2 patterns look easyer,

      i am testing atm 5 million numbers and afterwards they will check with the system, then i know if all fit are some fail.

      same testing atm for the regex fanboy pattern ;)

      thx alot for the quick and very good help
      kd ultibuzz

      UPDATE:there is a problem with numbers like

      they shoud change into
      but they remained unchanged

      UPDATE 2:i have it running with an if loop, if digit 2 or 3 is 0 use new pattern else my old one ^^
      this isn't nice at all and i don't like it ;)

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://606641]
[marioroy]: choroba++, Discipulus++. It depends on the type of module. Data-type "only" modules are likely multi-process safe, re: Hash::Ordered, Tie::IxHash.
[marioroy]: ... when shared via MCE::Share-> share(...)
[marioroy]: Net type modules are likely not multi-process safe unless stated in the documentation.
[marioroy]: The Prima author fixed his module to be both thread and multi-process safe. Thanks Dmitry.
[marioroy]: Of all the GUI-type modules, Prima was the worst regarding thread/multi- process safety. Now, it's the best for safety. ;-)
[marioroy]: Tk, Gtk2, Gtk3 requires extra care.
[marioroy]: I was unable to run parallel with Win32::Console. Fortunately, running parallel behind Win32::API is possible.

How do I use this? | Other CB clients
Other Users?
Others rifling through the Monastery: (7)
As of 2017-09-22 10:16 GMT
Find Nodes?
    Voting Booth?
    During the recent solar eclipse, I:

    Results (260 votes). Check out past polls.