Re: X3 employee example with semantic actions

On 06/03/2018 07:31 AM, Maarten Verhage wrote:
>>> On 06/02/2018 11:46 AM, Maarten Verhage wrote:
>>> [snip]
>>>>
>>>> For my application where I would like to 1) Parse a file 2) Modify a few
>>>> things and 3) write it back. I still think it is valueable to have the
>>>> option to get the two iterators of a rule match. So I can just std::copy
>>>> a
>>>> portion (described by a rule) of the file representation in memory,
>>>> rather
>>>> than having Spirit to interpret it. That will be higher performance does
>>>> it?
>>>>
>>> Would the code here:
>>>
>>> http://coliru.stacked-crooked.com/a/13c0d2050494a4d1
>>>
>>> be close to what you want?
>>>
>>> -regards,
>>> Larry
>>
>> Hi Larry, Thanks for a jump-start on this one. Sure that will work in the
>> meantime. I appreciate your effort to write a complete example for this!
>> Still it would be so valueable if Context would just contain the starting
>> position as well. I hope Joel could help us on this one.
>>
>> Regards, Maarten
> 
> The documentation page: "Annotations - Decorating the ASTs" makes use of the
> "position_tagged" base class for an ast. It claims to provide the positions
> into the input (with iterators) that corresponds to a given element in the
> AST.

Could you provide a link to that page.  I tried scanning the main topics 
here:

https://www.boost.org/doc/libs/1_67_0/libs/spirit/doc/html/index.html

and it's not obvious to me where this "Annotations - Decorating the 
ASTs" page might be.

> 
> Maybe this does what I want. But I don't feel a need for an on_success
> function.
> 
> I'm going to write a fresh message asking about this position_tagged and if
> I can use it without that concept of annotation which I still fail to
> understand what that means.

Waiting for that.  I'm unfamiliar with position_tagged and would 
appreciation some education ;)

> 
> Regards, Maarten
> 
> 
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