Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical
 
PerlMonks  

Re^2: String manipulation

by abhy (Novice)
on Jun 24, 2009 at 10:42 UTC ( #774340=note: print w/ replies, xml ) Need Help??


in reply to Re: String manipulation
in thread String manipulation

If I am not asking for too much, can you please expand the regex with comments?


Comment on Re^2: String manipulation
Re^3: String manipulation
by citromatik (Curate) on Jun 24, 2009 at 11:22 UTC

    Sure:

    my $rx = qr/ ^ # At the beginning of the string ( # Capture in $1 (?: # Paren for grouping (don't capture in $2) \w # match a "wordy" character (?: # paren for grouping, \s+|\z # match at least one space or the end of the + string ) )* # zero or more times ) # end of capture $1 (.*) # and match what comes after storing it in $ +2 /x # allow these comments ;

    The rationale is to match at the beginning all the one-character strings, storing them in $1. The rest of the input will be catched in $2

    citromatik

Re^3: String manipulation
by Limbic~Region (Chancellor) on Jun 24, 2009 at 13:03 UTC
    abhy,
    If you don't know about YAPE::Regex::Explain, it is worth a look. I don't think it has been updated to take into consideration the new regex doodads in Perl 5.10 but it should be helpful regardless.

    Cheers - L~R

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://774340]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others taking refuge in the Monastery: (5)
As of 2014-09-21 05:35 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    How do you remember the number of days in each month?











    Results (166 votes), past polls