user:expand_query/4

Documentation
- Reference manual
  - Built-in Predicates
    - User Top-level Manipulation
      - break/0
      - abort/0
      - halt/0
      - halt/1
      - prolog/0
      - expand_query/4
      - expand_answer/3
      - expand_answer/2
- Packages

user:expand_query(+Query, -Expanded, +Bindings, -ExpandedBindings)

Hook in module user, normally not defined. Query and Bindings represents the query read from the user and the names of the free variables as obtained using read_term/3. If this predicate succeeds, it should bind Expanded and ExpandedBindings to the query and bindings to be executed by the top level. This predicate is used by the top level (prolog/0). See also expand_answer/2 and term_expansion/2.