Am Freitag, 28. Juni 2019, 10:39:58 CEST schrieb Jean-Marc Lasgouttes:
> Le 28/06/2019 à 09:48, Kornel Benko a écrit :
> > Am Donnerstag, 27. Juni 2019, 23:24:31 CEST schrieb Jean-Marc Lasgouttes:
> >> Le 13/06/2019 à 09:18, Kornel Benko a écrit :
> >>> commit 6f2cd26103d0d59fd76184fd76af89cb8817ad4f
> >>> Author: Kornel Benko <kor...@lyx.org>
> >>> Date: Thu Jun 13 09:18:40 2019 +0200
> >>>
> >>> Cmake build:Amend 44bbd0b0 and 22f59925
> >>
> >> Hi Kornel,
> >>
> >> Since we have not decided to remove support for boost::regex yet in
> >> §2.4.0dev, I think this patch should be mostly reverted.
> >>
> >> Minimal gcc version is 4.7 (aka working c++11 except regexp)
> >>
> >> I am not event sure we need a minimal MSVC version, but I know that the
> >> 2015 version I use now works well.
> >
> > And what is the version number of this compiler, so that we could tests?
> > message(STATUS "MSVC_VERSION=${MSVC_VERSION}")
>
> I do not have it here, but it is in the 1900 series (depends on the
> patch level).
>
> Now I googled for VS std::regex issues and I found this:
> https://github.com/docopt/docopt.cpp/issues/67
> https://github.com/docopt/docopt.cpp/issues/49
>
> It seems that the VS regex implementation is not of great quality anyway
> and that some apparently simple regexes (but with nested quantifiers)
> overflow the stack. The MS engineers in their bug reports (not available
> anymore) seem to acknowledge that their regex implementation is not that
> good.
>
> The interesting thing is that the bug reports quoted above say that
> boost::regex is better than the other regex implementation, and faster
> too. Do you see this in your advanced F&R tests?
No, because I don't have MSVC. Even if there is some timing difference, it does
not matter. The biggest
time consuming problems are (on each paragraph)
1.) creating the tex part *
2.) analyzing and converting the tex-data to be used as input for regex ***
3.) apply regex
3a.) if regex applies, determine the positions (start-end) of the found
area ****************
('*' denotes, how much time we need for this part)
> JMarc
Kornel
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