Re: [Spirit Qi %] (x%y) not semantically equivalent to (x >> *(y >> x))

There is no particular warning in the docs telling me that the output of qi::string (btw. as well as the output of any other (attribute producing (of course)) parser can be "eaten up" when used with the % operator. 

Frank Hein

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Von meinem iPhone gesendet

> Am 27.05.2016 um 05:07 schrieb Lee Clagett <[email protected]>:
> 
> On Wed, 25 May 2016 19:44:19 +0200
> Frank Hein <[email protected]> wrote:
> 
>> Hello, 
>> 
>> I am quite new to Spirit. Great work. :) 
>> 
>> I found that (x %y) is not semantically equal to (x >> *(y >> x)).
>> The documentation says otherwise.
>> I'd consider this a bug. Otherwise documentation would have to be
>> changed at several places.
>> Below is a fully working example.
> 
> The expressions are semantically equal, as demonstrated in your
> program. All of the generated parsers accept an identical set of inputs.
> However, this example shows that the attributes exposed by the parsers
> differ, and this is accurately documented too. So, the documentation is
> correct AFAIK, but perhaps someone with a better grasp of formal parsing
> terminology could correct me. And maybe an explanation of the
> differences between language semantics and attributes could be added
> somewhere?
> 
> Lee
> 
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