Re: Some Parse::RecDescent Tutorials

[arhuman]

So sad that none of the articles explain how to derive and invalid left-recursive grammar into an (efficient) valid one.

I found it to be the main problem (for me) with Parse::RecDescent...


"Only Bad Coders Code Badly In Perl" (OBC2BIP)

[jmcnamara]

This issue is discussed, a little, in "The man(1) of descent" in issue 12 of The Perl Journal, in the section "Left-recurse ye not!".

John.
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[demerphq]

Eliminating Left Recursion in Parse::RecDescent discusses a mechanical approach. It doesnt cover the P::RD specific solutions though.


---
demerphq

_{<Elian> And I do take a kind of perverse pleasure in having an OO assembly language...}