Beefy Boxes and Bandwidth Generously Provided by pair Networks
laziness, impatience, and hubris
 
PerlMonks  

Re: Help modifying recursive regex

by vagabonding electron (Hermit)
on May 09, 2013 at 17:20 UTC ( #1032803=note: print w/ replies, xml ) Need Help??


in reply to Help modifying recursive regex

I have tried this with Text::Balanced and it seems to work:

#!/usr/bin/perl use strict; use warnings; use Text::Balanced ':ALL'; while ( my $text = <DATA> ) { my @data = extract_multiple( $text, [ \&extract_bracketed, qr/\s+/ ] ); @data = grep { !/^$/ } map {s/^\s+//;s/\s+$//;s/^\(//;s/\)$//;$_} @data; print join ( '---', @data ), "\n"; } __END__ A A B A B C (A B) C A (B) C A (B C D) A(B C D) A (B C D) E A (B C D)E A (B C D) (E F G) A (B C D) (E F G) I A B (C (D E) (F G)) (H I) A B (C (D E) (F G)) (H I) J A B (C (D E) (F G)) (H I) J K

because it prints:

A A---B A---B---C A B---C A---B---C A---B C D A---B C D A---B C D---E A---B C D---E A---B C D---E F G A---B C D---E F G---I A---B---C (D E) (F G)---H I A---B---C (D E) (F G)---H I---J A---B---C (D E) (F G)---H I---J---K

There is an issue though (perhaps due to my lack of deep knowledge of the module). If I put a line print  $@->{error}, "\n" if $@; after the first line in the loop it prints Did not find opening bracket after prefix: "\s*" every time. Is this something to worry about or just to take note of?

Just my 2 cents.


Comment on Re: Help modifying recursive regex
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1032803]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (17)
As of 2015-07-30 15:51 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (272 votes), past polls