In Android resource XMLs, you can use CDATA like this (especially useful if you don’t want to escape "):
<string name="app_info_gplv3_note"><![CDATA[ You should have received a copy of the GNU General Public License along with this program. If not, see <a href="https://www.gnu.org/licenses/">https://www.gnu.org/licenses/</a>. ]]></string>
When such strings are translated on Transifex, the CDATA code appears for translators, who may not know about this and just translate the text. Transifes then returns something like that:
<string name="app_info_gplv3_note">Você deve ter recebido uma cópia da GNU General Public License junto com este programa. Se não recebeu, leia em <a href="https://www.gnu.org/licenses/">https://www.gnu.org/licenses/</a>. ]]></string>
Note that CDATA is not used anymore, but " is not quoted, too, so that the now string breaks compilation of the app.
- when CDATA is used in the original string, force it for translations, too, or
- correctly handle CDATA and " escaping
In either case, CDATA should not be expoed to translators in a way that they can break XML syntax.