Does Symfony support the <g>, <x> (v1.2) | <pc>, <mrk>(v2.0) elements in XLIFF files? If so, how does it work? I tried to use this functionality but it just deleted the elements from the final translation.

If it is supported, I would be happy to create a PR for documenting it, but I would like to know how it works first 😄
However if this is not supported, what is the recommended alternative for using semantic markup in translations?

Sources:
XLIFF 1.2 : https://docs.oasis-open.org/xliff/v1.2/xliff-profile-html/xliff-profile-html-1.2-cd02.html
XLIFF 2.0 : http://docs.oasis-open.org/xliff/xliff-core/v2.0/xliff-core-v2.0.html