OOPS-read test file examples (was Re: X3 employee example with semantic actions

On 06/05/2018 06:58 PM, Larry Evans wrote:
> On 06/05/2018 01:38 PM, Maarten Verhage wrote:
> [snip]
>> In the meantime I've learned by fortunate accident that the parser 
>> directive
>> **raw** will provide me the iterator range I'm after. As a general 
>> remark on
>> this. It is nice if you can immediately understand the facilities 
>> provided
>> in a documentation page like the Parser Directives. If you don't little
>> effort is made to properly present the ideas behind these facilities. 
>> Maybe
>> the Spirit developers are annoyed by what they might consider as naive
>> questions about obvious things in this mailing list. While I believe 
>> that if
>> you improve the documentation and explain for with purpose you provide
>> facilities people can much faster understand it, and the amount of 
>> "stupid"
>> questions can be heavily reduced.
>>
> To supply a real life use case for what's described in the above 
> paragraph,  I've looked at the doc for raw as expressed in the xml
> generated from:
> 
> https://github.com/boostorg/spirit/tree/develop/doc/x3
> 
> That contains:
> 
>   raw[a]
> 
>     boost::iterator_range<I>
> 
>     Presents the transduction of a as an iterator range
> 
>  From this I infer that an interator_range<I> is produced
> where I is the Iterator to the parsers.
> 
> But how do I use this.  Grep'ing for raw shows:
> 
> -*- mode: compilation; default-directory: 
> "~/prog_dev/boost/releases/ro/boost_1_67_0/sandbox/lje/spirit-experiments/include/boost/spirit/home/x3/" 
> -*-
> Compilation started at Tue Jun  5 18:43:54
> 
> find . -name \*.hpp -exec grep -e '\<raw\>' {} \; -ls
>      auto const raw = raw_gen{};
>    9109799     12 -rw-rw-r--   1 evansl   evansl       2534 Jan 19 14:59 
> ./directive/raw.hpp
>          // attr==raw_attribute_type, action wants iterator_range (see 
> raw.hpp)
>    9049853     16 -rw-rw-r--   1 evansl   evansl       4718 Jun  4 22:09 
> ./core/action.hpp
> #include <boost/spirit/home/x3/directive/raw.hpp>
>    9109791     12 -rw-rw-r--   1 evansl   evansl       1286 Jan 19 14:59 
> ./directive.hpp
> 
> Compilation finished at Tue Jun  5 18:43:54
> 
> so, a brief look at that code still didn't clear things up; so,
> Please, Maarten, could you post the code where you make use
> of raw so I wouldn't have to further guess how to do it?
> 
> -hopefully,
> Larry
> 
Got clue from reading the test raw.cpp test file:

https://github.com/boostorg/spirit/blob/develop/test/x3/raw.cpp

translated what was learned to the employee example here:

https://gist.github.com/cppljevans/0f4351f127c2e651d8094877a9510e5a#file-x3-employee-raw-cpp

Is that about what you mean by use of raw?

-regards,
Larry



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