If you look at the big graph near the end of the article, you'll see that the nfa.c in the article has cheaper construction cost than all of the fancier implementations, by about a factor of 4. And I wasn't really trying.

Er, am i looking at the right thing? I dont see a graph covering construction time. I see a graph covering total run time but not one covering construction alone.

Id be willing to look into hacking your code into the regex engine as an experiment. You'd have to release the code under the PAL though.

---
$world=~s/war/peace/g

In reply to Re^4: Perl regexp matching is slow?? by demerphq
in thread Perl regexp matching is slow?? by smahesh

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.