As I said, Perl 5 in my opinion is impossible to be really parsed without run the code. This is way I still wait Perl 6, that is not so dependent of runtime states to define code.

Perl - like many other "dynamic languages" - is just too flexible to be statically analyzed with certainty. This is not a parsing problem. LISP (which famously has "no syntax" and is completely trivial to parse) has the same issues.

Consider this: 

my $method = "method_name";
for my $class (qw(Class1 Class2 Class3)) {
  my $object = $class->$method(shift (@arguments));
}

[download]
Now consider that all the string literals in this code are just strings, and can come from anywhere else, including files, databases, user input etc.

"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re^3: Slow evolution of Perl = Perl is a closed Word by Joost
in thread Slow evolution of Perl = Perl is a closed Word by Anonymous Monk

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.