How to extract translation for gettext. AngularJS (quotes wrapped by single quote)

Question

This is how gettext extract translation:

<custom-tag custom-attr="{{'Edit page' | translate}}"></custom-tag> 

but how can I extract from this:

<custom-tag custom-attr='"Edit page"'></custom-tag>

seems the bellow one is wrong:

<custom-tag custom-attr='"{{\'Edit page\' | translate}}"'></custom-tag>

Answer 1

This is the way to extract text in such cases:

<custom-tag custom-attr='"Edit page" | translate'></custom-tag>