Boost logo

Boost Users :

Subject: Re: [Boost-users] Boost.Spirit. Karma: Kleene star with space separator
From: Matwey V. Kornilov (matwey.kornilov_at_[hidden])
Date: 2016-03-01 09:22:36


01.03.2016 16:53, Hartmut Kaiser пишет:
>
>> There is an example of usage Keele star with Karma generator:
>> http://www.boost.org/doc/libs/1_60_0/libs/spirit/doc/html/spirit/karma/ref
>> erence/operator/kleene.html
>>
>>
>> std::vector<double> v;
>> v.push_back(1.0);
>> v.push_back(2.0);
>> v.push_back(3.0);
>> test_generator_attr_delim("1.0 2.0 3.0 ", *double_, space, v);
>>
>>
>> How could the remaining space be omitted? Is (double_ % space) supposed
>> to be used instead for such cases?
>
> Yes.

Many thanks. I've found that % operator fails on empty containers
whereas Kleene* doesn't.

>
> Regards Hartmut
> ---------------
> http://boost-spirit.com
> http://stellar.cct.lsu.edu
>


Boost-users list run by williamkempf at hotmail.com, kalb at libertysoft.com, bjorn.karlsson at readsoft.com, gregod at cs.rpi.edu, wekempf at cox.net