Hi,

I'm trying to use the module WWW::Search (v2.39) with the backend (basically an add-on to enable searching on this site) PubMed.pm. Unfortunately, whenever I try to run the example code:

#! c:\perl\bin
use WWW::Search; 

$query = "lung cancer treatment";
$search = new WWW::Search('PubMed'); 
$search->native_query(WWW::Search::escape_query($query)); 
$search->maximum_to_retrieve(100); 
while (my $result = $search->next_result()) { 
$url = $result->url;
$title = $result->title;
$desc = $result->description; 
print "<a href=$url>$title<br>$desc<p>\n"; 
    }

[download]

I get:

unknown search engine backend PubMed (Can't locate WWW/Search/PubMed.p
+m in @INC (@INC contains: C:\Perl\lib C:\Perl\site\lib .) at (eval 5)
+ line 2.
BEGIN failed--compilation aborted at (eval 5) line 2.
) at C:\Perl\progs\test2.pl line 6

[download]

At first I thought there was some problem with the installation but ppm says the WWW::Search installation was ok and CPAN says ditto for PubMed.pm. I also tried:

BEGIN {
    push @INC, "c:\perl\site\lib\pubmed.pm";
}

[download]

before and after the use statement, but that didn't help. I thought of looking into the actual .pm files but gave up quickly since I'm still a newbie and don't want to destroy the code.

Does anyone have any idea about how to deal with this?

In reply to problems with search module backend by dannoura

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


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.