Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic
 
PerlMonks  

Re(4): Regular Expression Builder

by Dog and Pony (Priest)
on Sep 02, 2002 at 20:11 UTC ( #194630=note: print w/replies, xml ) Need Help??


in reply to Re: Re: Re: Regular Expression Builder
in thread Regular Expression Builder

After all ldkjdlkjf2098kklls probably isnt [[:alpha:]]+\d+[[:al­pha:]]+
I did play around once with a small script that did these things, when I was bored, and no, it probably isn't. But what I did was take several strings and tried to derive a common expression out of them - first looking for similarities, like a sequence of numbers in the middle, or whitespace at the end, or whatever, and then built sub-regexes from the parts. I think starting with splitting on non-words and such gave so-so results for things like email addresses..

Of course, I never really got any really usable results, but it was a fun exercise. :) What I wanted to say was that do decide which it should be you need a decent sample of several strings that should all match. Then it is sometimes possible to get something to build upon. Maybe. :)


You have moved into a dark place.
It is pitch black. You are likely to be eaten by a grue.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://194630]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others contemplating the Monastery: (8)
As of 2016-09-25 09:28 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Extraterrestrials haven't visited the Earth yet because:







    Results (468 votes). Check out past polls.