Problem when ICU messages contains html tags

[shtumi]

When I have translation id like this:

translation.id:
  {count, plural,
    one {<b>1</b> item}
    other {<b>{count}</b> items}
  }

it doesn't work in js with

Translator.trans('translation.id', { count: 23});

because official documentation of intl-messageformat says that tags should be quoted (because if not it assume b is variable.
https://formatjs.io/docs/intl-messageformat/

So it should be like:

translation.id:
  {count, plural,
    one {'<b>'1'</b>' item}
    other {'<b>'{count}'</b>' items}
  }

But when I try this format in twig:

{{ 'translation.id'|trans({count: 23}) }}

then I face to error:
An exception has been thrown during the rendering of a template ("Invalid message format (error #65801): msgfmt_create: message formatter creation failed: U_UNMATCHED_BRACES").

[shtumi]

pull request #311 added

[sustmi]

I created a new pull-request that fixes this issue using ignoreTag option of IntlMessageFormat constructor: #325

The escaping that @shtumi proposed in #311 might work too but I believe that using the ignoreTag option is the way this is supposed to be solved according to the documentation:

ignoreTag: Whether to treat HTML/XML tags as string literal instead of parsing them as tag token.

See: https://formatjs.io/docs/intl-messageformat/#intlmessageformat-constructor

[Kocal]

This issue can be closed