Optional chaining support

[Rovniy]

I have problem with extracting translates from *.vue files, wich use ES8 feature object-chaining.
As sample: const a = object?.someKey?.someValue provide to reject Make script with error: Trace: SyntaxError: Unexpected token. If i remove chaining, all scripts successfully done. How resolve this problem?

[kemar]

Please , feel free to submit a PR @kristofferdamborg 😄

[Knogobert]

This is possible thanks to Polyconseil/easygettext#72, it enables you to use Babel as a parser instead of Acorn (which doesn't support optional chaining atm). Just make sure your babel parser correctly has the optional-chaining-plugin installed and then add the --parser=babel argument to the gettext-extract command that you probably are using.
Here's a part of an example from my project's code:

# Extract gettext strings from templates files and create a POT dictionary template.
gettext-extract --attribute=v-translate --parser=babel --quiet --output $TEMPDIR/template.pot $GETTEXT_HTML_SOURCES