Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl Monk, Perl Meditation
 
PerlMonks  

Re^2: RegEx related line split

by dominic01 (Acolyte)
on Nov 14, 2011 at 03:13 UTC ( #937859=note: print w/replies, xml ) Need Help??


in reply to Re: RegEx related line split
in thread RegEx related line split

Thank you. This works as per my requirement but I was trying one other pattern
$line = q{a) Line 1. b) Line 2. c) Line 32. d) Line 42.};
Here it matches if some (words) within () that are coming in the line.

Replies are listed 'Best First'.
Re^3: RegEx related line split
by johngg (Abbot) on Nov 14, 2011 at 10:30 UTC

    Do you mean that the opening parenthesis is optional in the text you are spliting? If so, you can use a '?' quantifier to make the opening parenthesis "zero or one of" but you also have to use a negative look behind to make sure you don't split '(' from 'a)'. I've added the 'x' modifier to the pattern so I can space it out and make it more readable.

    knoppix@Microknoppix:~$ perl -E ' > $line = q{(a) Line 1. b) Line 2. (c) Line 32. d) Line 42.}; > @arr = split m{ (?<! \( ) (?= \(? [a-z] \) ) }x, $line; > say qq{>$_<} for @arr;' >(a) Line 1. < >b) Line 2. < >(c) Line 32. < >d) Line 42.< knoppix@Microknoppix:~$

    I hope this is helpful.

    Cheers,

    JohnGG

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://937859]
help
Chatterbox?
[james28909]: now if i have packed a script into a PDK exe, and misplaced the source, i can print it.
[james28909]: but you have to prepare for it first by adding this to the source
[james28909]: seek DATA, 0, 0; while (<DATA>) { print; }
[Lady_Aleena]: Sounds interesting. Have you written a meditation or cool use for it?
[Lady_Aleena]: It might be something PerlMonks at large would be interested in.

How do I use this? | Other CB clients
Other Users?
Others contemplating the Monastery: (6)
As of 2017-05-01 00:09 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    I'm a fool:











    Results (543 votes). Check out past polls.