enforceRtlInHtml method

String enforceRtlInHtml (String html)

Enforce the html snippet in RTL directionality regardless of overall context. If the html piece was enclosed by a tag, the direction will be applied to existing tag, otherwise a span tag will be added as wrapper. For this reason, if html snippet start with with tag, this tag must enclose the whole piece. If the tag already has a direction specified, this new one will override existing one in behavior (should work on Chrome, FF, and IE since this was ported directly from the Closure version).

Implementation 

static String enforceRtlInHtml(String html) =>
    _enforceInHtmlHelper(html, 'rtl');