SWI-Prolog -- option/3

Documentation
- Reference manual
  - The SWI-Prolog library
    - library(option): Option list processing
- Packages

Availability::- use_module(library(option)).(can be autoloaded)

Source

[semidet]option(?Option, +OptionList, +Default)

Get an Option from OptionList. OptionList can use the Name=Value as well as the Name(Value) convention.

Option

Term of the form Name(?Value).