This SRFI adds support for dynamically-scoped parameters. SRFI 39 is implemented in the Guile core; there’s no module needed to get SRFI-39 itself. Parameters are documented in Parameters.
This module does export one extra function: with-parameters*.
This is a Guile-specific addition to the SRFI, similar to the core
with-fluids* (see Fluids and Dynamic States).
Establish a new dynamic scope, as per parameterize above,
taking parameters from param-list and corresponding values from
value-list. A call (thunk) is made in the new
scope and the result from that thunk is the return from
with-parameters*.