From: Joel de Guzman (joel_at_[hidden])
Date: 2007-12-05 22:23:48
Larry Evans wrote:
> A recent thread in spirit.general NG suggested to me the need for
> a 'tagged variant' extension to boost::variant in order to emulate
> the tagged-union mentioned in this post in the thread:
> A prototype of such an extension is available in variant_tagged.zip
> Use of the variant_tagged could be used whenever non-string processing
> is required in a spirit parser. Each tag in the using corresponds to
> a token-id and each value associated with that token-id is the attribute
> for that token-id. This closely emulates the way yacc does it, IIRC,
> except it just uses a union and the tag is somehow "implicit".
> Is there any interest in using this in spirit or boost in general?
There's definitely interest in Spirit :-)
Thanks for your work on this. Very useful.
-- Joel de Guzman http://www.boost-consulting.com http://spirit.sf.net
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