Re: [Boost-users] Spirit2 cookbook example suggestions welcome

From: Joel de Guzman (joel_at_[hidden])
Date: 2007-04-14 18:50:39

ebo_at_[hidden] wrote:
> Joel de Guzman <joel_at_[hidden]> said:
> 
>> ebo_at_[hidden] wrote:
>>
>> EBo! So nice to see you every now and then.
> 
> Joel!  You always make me feel so welcome ;-)
> 
>>> Something I was playing around with a couple of years ago and never took the
>>> project to full production was a user extensible machine-tool parser which
>>> kept the rules and the grammar in persistent dynamically loadable objects.  I
>>> was able to load new commands on the fly, or actually change the grammar rules
>>> themselves...  
>>> ...
>>>  Would something like that be interesting?
>> Yeah, that's cool! I'm not sure it fits the criteria I outlined though.
> 
> I'll review the criteria tomorrow...
> 
>> Seems to be too complex for the cookbook?
> 
> How many lines/pages of code and description is reasonable?   The entire
> framework for the above is something like 1,750 lines of code, but that
> includes the dynamic parser and 28 RS-274 M and G codes.  Stripped down for a
> minimal example could be a fraction of that.  Anyway, maybe we can come up
> with something appropriate.

I'm thinking more in the tune of a few lines of grammar here and there
-- small enough to digest in a few minutes. Something like... if you
want to do something like this, you write something like this.

Example: "I want to parse pascal style strings where the first byte
is the length (N) of the string, followed by N characters. How do
you do it?"

Of course that's a very simple example. We have more elaborate examples
like "How do you write a C-like language and a virtual machine?". We
have that. Now, I want some more in-betweens.

Regards,
-- 
Joel de Guzman
http://www.boost-consulting.com
http://spirit.sf.net