Form Labels translation does not allow raw content (Add label_html option)

[MihaiBwr]

Description
Based on this PR: #28635
I am trying to do the following:

->add('confirmedAgb', CheckboxType::class, [
                'label' => 'some.label',
                'label_translation_parameters' => [
                    '%start_link%' => '<a href="https://www.de" target="_blank">',
                    '%end_link' => '</a>'
                ],
            ])

but the result is

<a href="https://www.de" target="_blank"> link </a> here

This function is great but it's missing this important piece.
Thanks.

[javiereguiluz]

I've missed this feature in the past too (specially in complex checkboxes/radiobuttons which contain a mult-line content to include a description + some help with HTML contents). I missed this in the help attribute too ... but we added help_html option to fix this ... so we may add a label_html option too.

[przemyslaw-bogusz]

I have prepared a PR for this #31375. Here is how it looks for a label on CheckboxType, depending if you set label_html to false or true.

It is even recognizable by Symfony plugin in Phpstorm.

@javiereguiluz The only problem is I have a red light from Travis CI on PHP 7.4.

[ThomasLandauer]

Related issue #8733

Is it possible to rename this issue to "Add label_html option"? I was just about to open a new one ;-)

Regarding the actual feature: Whatever the arguments were for implementing help_html - they certainly apply to label_html as well :-)

[xabbuh]

Looks like we forgot to close here after merging #31375. :)

About the option name: I am not convinced that choosing something else would be a good idea given that it currently follows the same naming convention as the previously added help_html option.

[ThomasLandauer]

@xabbuh I wanted to rename this issue title, not the option ;-)

[xabbuh]

I misunderstood your comment and added the addition to the title. :)