I have to admit, I don't understand your code, I know \1 in the context of RegEx but otherwise couldn't find any reference for it in the docs. do you have a link, please?

please explain
> If you see otherwise, it's because you're looking at a *copy* of the constant.

$_[0] is supossed to be an alias to the parameter 

  
DB<1> sub pr { print \$_[0] }
DB<2> $a="x"
DB<3> print \$a
SCALAR(0x852b11c)
DB<4> pr $a
SCALAR(0x852b11c)

[download]

Or do you mean that aliased symbols of variables in perl don't neccessarily have the same reference?

I suppose this can possibly be done with typeglogs ... do mean this or a similar mechanism?

Cheers Rolf

In reply to Re^10: Reference of constants and literals by LanX
in thread Reference of constants and literals by LanX

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.