Re: is this behavior correct?

[Philippe Lhoste <PhiLho@...>]

On 20/06/2011 15:15, Lorenzo Donati wrote:
> Moreover PCRE-like regexps are extremely common, so knowing how to use them is likely to
> be a very "reusable" knowlegde (ranging from other programming languages to utility
> programs), whereas Lpeg is a "Lua-only" tool (so the effort to learn it must be really
> counterbalanced by the benefits one can achieve).

Note that the concept itself, ie. Peg, is implemented in several languages, although with 
differing syntaxes, of course, depending on the (lack of) capability to have DSLs for example.

In Java (and Scala), for example, you have the Parboiled library.

So half of the effort is to learn the concept, and the other half is to learn the given 
implementation, but the first half is reusable... :-)

Beside, you can do with Pegs everything you can do in regexes (with a slightly more 
verbose syntax, which can be seen as an advantage or not...), but also much more! So it is 
worth the investment in time.

--
Philippe Lhoste
--  (near) Paris -- France
--  http://Phi.Lho.free.fr
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