Symfony2: HTML inside translation message

Question

In messages.en.yml, I have

confirmed: Congrats %username%, your account is now activated.

But I want to \'bold\' username to

Answer 1

In my opinion, this is the best solution today:

'key'|trans({'%username%': '' ~ suspiciousVar|escape ~ ''})|raw

The only risk here is stored XSS in your translation files.