Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
#!/usr/bin/perl use strict; use warnings; my $item = qr /(?:[Aa]|\d+(?:-\d+)?)/; my $list = qr /^$item(?:,$item)*$/; while (<DATA>) { chomp; print "$_: ", /$list/ ? "matches\n" : "does not match\n"; } __DATA__ 1 1-3 a 1,4-6,a 1,4-6,,a 1,4-6, ,1,4-6,a 1,4-6,b 1,4-6-8,a 1,4-a,2 1,4-6,4-6,1234-12,a 1: matches 1-3: matches a: matches 1,4-6,a: matches 1,4-6,,a: does not match 1,4-6,: does not match ,1,4-6,a: does not match 1,4-6,b: does not match 1,4-6-8,a: does not match 1,4-a,2: does not match 1,4-6,4-6,1234-12,a: matches
Abigail

In reply to Re: Regular Expression Question by Abigail-II
in thread Regular Expression Question by SquireJames

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others imbibing at the Monastery: (4)
As of 2022-08-17 10:00 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found

    Notices?