Essentially what the perl compiler does with heredocs is to replace the heredoc definition with a string equivalent of the contents of the heredoc. By runtime, the heredoc itself is gone. If you do this yourself, mentally, then you will see that:
my $text = <<"EOT"
This
is
my
text.
EOT
;
and
my $text = <<"EOT";
This
is
my
text.
EOT
are identical, and equal to:
my $text = "This\nis\nmy\ntext.\n";
Update: BTW, this lets you do weird things like this:
while ( <<"EOT" =~ m/(.*is.*)/g )
This
is
my
text,
isn't it?
EOT
{
print $1,"\n";
}
Impossible Robot
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.