Beefy Boxes and Bandwidth Generously Provided by pair Networks
Welcome to the Monastery
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
1)using input record separator as newline indicator is very interesting. Never seen it before but works well. Any reason? I am assuming it's just a style issue?

I guess it's more along "a \n is a \n is a \n" - $/ is a global, and that could be changed far away without you knowing it; so it's more safety than style.

2)Below code from tutorial does not work when I insert my next to variable.. can someone explain this?

You are allocating a lexical $x, not a package global (which would be either use vars '$x' or our $x), and local aliases only package globals. You can't (shouldn't) allocate globs and lexicals of the same name in the same scope:

our $x; my $x; # gives a warning
our $x; { my $x; # ok }
3)can someone explain further on "lexical variables are declared at compile-time, not initialised? Is this because BEGIN runs during compile-time? I sneaked in a new my $foo = something inside of BEGIN block and execution of the code came out w/ foo is something during BEGIN phase

"lexical variables are declared at compile-time, not initialised" means "the container is created, but nothing is put into it". The initialization (= puting something into the bucket) happens at run time. BEGIN blocks are compiled and immediately run, that's why "code came out w/ foo is something during BEGIN phase".

See also my/local, space/time (was: Re: The difference between my and local).

--shmem

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

In reply to Re^4: Lexical scoping like a fox by shmem
in thread Lexical scoping like a fox by broquaint

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!
  • 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, 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, 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.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others about the Monastery: (3)
    As of 2015-07-05 09:30 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (61 votes), past polls