Top of the mornin!
Ive been hacking around all night and I have gargled some code which is confusing me.
perl -wle '$_="a"x20;s/(?{print "${^O}rules".-"${0}macs"})//g'|wc -l
I was obfuscating sorry.
the idea is that no matter what you change the length of $_ to, it is always going to run the print command 2x the number plus two. I am speculating that this number may change on different platforms. But anyways. What is the logic here? What is the regex doing to come to that magical number of executes?
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|
