I'm being imprecise. I wasn't sure if it's just the difference between a self-modifying regex, a regex that modifies source data (and then calls itself), or regexes that just include other regexes. On further consideration I'm sure that it makes a difference I was using the (??{})/(?{}) constructs. Perhaps it's that sort of use that got me into hot water.

Update: it was just some toy code that did something about defining a qr// regex in terms of a source string, modified the source string and then had the qr// regex call itself again with the new data.

Update again: My misunderstanding was on whether more than one instance of the regex engine could be active at once. Perhaps it was the regex compilation that killed it. Anyhow I'll just do a bug report now that I know it's not a Just-Don't-Do-That sort of thing.

__SIG__ use B; printf "You are here %08x\n", unpack "L!", unpack "P4", pack "L!", B::svref_2object(sub{})->OUTSIDE;

In reply to Re: Re: Re: Re: split on spaces, except those within quotes? by diotalevi
in thread split on spaces, except those within quotes? by pg

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.