Re: C/C++ interface to YAML files

On Wed, Dec 19, 2007 at 08:01:04PM -0500, Chris Ross wrote:
> 
> On Dec 19, 2007, at 19:47, Zenaan Harkness wrote:
> > You may find a full YAML loader, which has proper support for YAML  
> > spec, is
> > significantly more flexibility (complexity) than you need. Here's part
> > of the Reference:
> >
> > %YAML 1.1   # Reference card
> > ---
> > Collection indicators:
> >     '? ' : Key indicator.
> >     ': ' : Value indicator.
> >     '- ' : Nested series entry indicator.
> >     ', ' : Separate in-line branch entries.
> >     '[]' : Surround in-line series branch.
> >     '{}' : Surround in-line keyed branch.
> >
> > (www.yaml.org from memory)
> >
> > Your arrays are right there...
> 
>    Right.  I knew YAML supported all of that.  Are you suggesting I  
> might
> be better off not having a "real" YAML parser, but instead just
> implementing a subset of the spec myself?  Eh.  I hate to do that sort
> of thing, but you may well be right...  I will need more than just  
> arrays,

No, I recommend using the fullest parser you have access to, or can
write. If you're inclined to write one, check out www.antlr.org - even
has a GUI/IDE for productions generation/ editing.

> I think, but.  Something like:
> 
> item1:
>    ? key : value
>    ? key2 : [ foo, bar, baz ]
> item2:
>    ? key
>    : value4
>    ? key2
>    : [ laa, dee, daa ]
> item3: { key: value7, key2: [ bob, dog ] }
> 
>    And, I don't even expect to have a need for that form of value for
> key2, but that was the "I thought I'd likely want someday" type of thing
> I was thinking...
> 
>    Using a full YAML parser, all of the options described above, which
> are all valid YAML, "just work".
> 
>    This make sense?

Of course.

Now all you needs an adequate YAML parser for your language of choice...

zen


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