Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
Hi, I've been trying to use Business::ISSN to recognize issns. The problem is that this module doesn't do what it's man page says. Here is an except from the man page :

#EXPORTABLE FUNCTIONS use Business::ISSN qw( is_valid_checksum ); #verify the checksum if( is_valid_checksum(’01234567’) ) { ... }
You can clearly see that is exports is_valid_checksum. However, when I try to use this module like this:

use Business::ISSN qw(is_valid_checksum); my $issn = '0742-4477'; print "Valid = " . is_valid_checksum($issn);
It bombs out with this:

"is_valid_checksum" is not exported by the Business::ISSN module Can't continue after import errors at line 1 BEGIN failed--compilation aborted at line 1.

Any ideas as to why I can't import this function? Just so you know, the object-oriented way of using this module doesn't work either. Same jazz with finding 'new'. Has anybody seen anything like this before, or is it just a documentation error?

¥peace from CaMelRyder¥

In reply to Business::ISSN - where is is_valid_checksum by CaMelRyder

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 How to display code and escape characters are good places to start.
Log In?

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

How do I use this? | Other CB clients
Other Users?
Others pondering the Monastery: (5)
As of 2023-09-21 12:03 GMT
Find Nodes?
    Voting Booth?

    No recent polls found