Surround notation

Surround notation is a lesser known notation, but it is, however, used in many languages. In surround notation, you put the command on both sides of its arguments. One example is parentheses: they are the identity function of surround notation. In xml, the primary notation is surround.

In Perl 6, an operator that uses surround notation is called circumfix.

Examples
In xml: Qwe Asd OVER 9000!!!

In C-style languages: while(true) { //Do stuff }