https://cvefeed.io/capec/detail/capec-199-xss-using-alternate-syntax
CAPEC-199: XSS Using Alternate Syntax
An adversary uses alternate forms of keywords or commands that result in the same action as the primary form but which may not be caught by filters. For...
alternate syntaxxssusing
https://manpages.ubuntu.com/manpages/xenial/man3/Text::MicroMason::HTMLTemplate.3pm.html
Ubuntu Manpage: Text::MicroMason::HTMLTemplate - Alternate Syntax like HTML::Template
Alternate Syntax like HTML::Template
alternate syntaxhtml templateubuntumanpagetext