* (ql:quickload :cl-interpol)
To load "cl-interpol":
  Load 1 ASDF system:
    cl-interpol
; Loading "cl-interpol"
..................................................
[package cl-unicode]..............................
[package cl-unicode-names]........................
[package cl-interpol].....
(:CL-INTERPOL)

* (interpol:enable-interpol-syntax)

* '(:PLX . #?/A|B/)
(:PLX . "A|B")