This doesn't do anything useful:

'div.abstract-content > p' || 'not provided'

[download]

The || operator is a logical short circuit. If the expression on the left is true, that expression's value is returned, and the right-hand side is never evaluated. The string "div.abstract-content > p" is just a plain old string, and evaluates to true. Therefore, the 'not provided' string is never seen. You're not providing an alternate of choice, you're providing only one string as an option.

I'm guessing here but perhaps the path div.abstract-content > p doesn't resolve to anything in the DOM you are parsing. It might be useful for you to provide a sample of the dom, trimmed to show the relevant hierarchy.


Dave

In reply to Re: Mojo::DOM exception handling help by davido
in thread Mojo::DOM exception handling help by Anonymous Monk

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.