Tweaking lib/symbols for XML entities

[Pavel Sanda]

On Thu, Jun 18, 2020 at 02:03:38AM +0200, Thibaut Cuvelier wrote:
> On Mon, 15 Jun 2020 at 23:51, Pavel Sanda <sanda at lyx.org> wrote:
> 
> > On Mon, Jun 15, 2020 at 02:46:47PM +0200, Thibaut Cuvelier wrote:
> > > Here is a new version of the first patch. Indeed, I forgot to completely
> > > refactor a few font-related things. It should be much better now. (I also
> >
> > Ok, we are bit closer, I committed update of first patch.
> >
> > There is still missing id='magicparlabel-XX' part which need to be fixed.
> > Please check xHTML output of e.g. Math manual to be identical.
> >
> 
> Here is a new version of the patches. Among the changes:
> - removal of a TODO for xml::ParTag (the constructor with parid is no more
> used anywhere). ParTag still exists, as it is used to perform some dispatch
> in the stream.
> - restoration of the parids (looks like it was a reversed condition at some
> point).
> - slight code cleanups (chain the << calls in streams, as is done in most
> places), in a separate commit.
> A quick note: the MathML patches remove useless spaces around symbols (they
> are not present in output from MathType, for instance). This is similar to
> how simpler things are already handled: before this patch, LyX output
> <mi>A</mi> but <mi> λ </mi>; now, there are no spaces for lambda.
> The remaining differences are due to previous differences in treatment
> between the old DocBook and the existing HTML exporters worked.

Thanks, I committed the first patch with consts added (binding to temporaries).
I propose to drop the second patch altogether. Unless you use simple expressions
chaining is not particularly safe, << is not a sequence point so order of evaluation
is undefined.

Pavel