Beefy Boxes and Bandwidth Generously Provided by pair Networks
Problems? Is your data what you think it is?
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
I know my post is a little late...

Maybe we have a disctinction in our definition of "static parsing", but I think that no language can actually be statically unparseable as long there is a finite number of parsing rules. Under this condition, there should be a finite number of possible derivations for a certain number of generated symbols. In Kennedy's example :

whatever / 25 ; # / ; die "this dies!";

Two interpretations are possible. There should not be any problem if the compiler find the two ways and produces a check branching to the two interpretations. Something like this:
if (is_nullary(whatever))
{
  whatever / 25;
}
else
{
  whatever (/ 25 ; # /);
  die "this dies!";
}
When we think about it, the Perl interpreter already does this. So technicaly, parsing Perl is not a undecidable problem. You only proved that there could not be a single way to parse Perl - and yes, it is a problem for text editor's syntax-highlighting.

In reply to Re: Perl Cannot Be Parsed: A Formal Proof by ViciousFrank
in thread Perl Cannot Be Parsed: A Formal Proof by Jeffrey Kegler

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 examining the Monastery: (8)
    As of 2015-07-06 09:31 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 (71 votes), past polls