sundialsvc4:

Three words: Divide and conquer.

In other words, take the grammar tree, and replace one of the subtrees with a trivial production, and see if the error goes away. If the error remains, then you've shortened the grammar to a smaller example. If not, you've found the production that contains the error, and you should be able to put that production at the root of your script and remove the rest of the grammar.

Lather, rinse and repeat. You'll either: (a) have a short example (which would be easier anonymize) that you can post, or (b) trip over the answer.

...roboticus

In reply to Re: An odd (lack of...) error message(s) from Parse::RecDescent by roboticus
in thread [SOLVED; FALSE-ALARM] An odd (lack of...) error message(s) from Parse::RecDescent by locked_user sundialsvc4

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.