Re: [boost] Re: Re: Re: FORMAL review of "Output Formatters" - results

From: John Torjo (john.lists_at_[hidden])
Date: 2004-10-27 03:06:00

> 
> As I stated in my review, I conceive of the output formatters library as an
> inverse to Spirit. I'n many cases loss of information is desirable, so there is

Yes, I agree.

> no natural way to support input. However, I'm now proposing  *in addition*  a
> lightweight facility that could become part of the standard library. My
> impression from sitting in with the library working group is that both input and
> output would be desired for such a facility. While I admire Boost.Serialize very

I agree with you, but since this should be a very lightweight facility, 
it is my impression that it should be a different lib altogether.

> 
> 
> I've written a sample implementation over the weekend which I'll post as soon as
> I have time to document it. Sample use:
> 
>     // pseudo code initialization:
>     vector< list< pair<string, string> > > v =
>         { { make_pair("hello", "goodbye"),
>             make_pair("morning", "evening"),
>             make_pair("cold", "hot") },
>           { make_pair("hello", "goodbye"),
>             make_pair("morning", "evening"),
>             make_pair("cold", "hot") } };
> 
>     int flags = punc::indent_after_open |
>                 punc::break_after_sep;
> 
>     cout << punctuate< vector<_> >("[", ",", "]", flags)
>          << punctuate< list<_> >("{", ",", "}", flags)
>          << punctuate< pair<_, _> >("(", ":", ")")
>          << v << "\n";
> 
> Output:
> 
>     [
>         {
>             (hello:goodbye),
>             (morning:evening),
>             (cold:hot)
>         },
>         {
>             (hello:goodbye),
>             (morning:evening),
>             (cold:hot)
>         }
>     ]
> 
> It provides input and output, but no string-escaping (yet). Right now, a string
> is regarded to be complete as soon as an appropriate punctuaion sequence is
> encountered.
> 

It's a good start ;)
> 
> I hope you're not directing this remark at me. I've worked with Reece on his
> library since before it was in the sandbox. Early on I sent him some sketches of
> my ideas for his library, and was hoping to produce a sample implementation.
> Unfortunately, I got too busy.
> 

no, it was not directed at you

Best,
John

-- 
John Torjo,    Contributing editor, C/C++ Users Journal
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