Portray `Clause' on the current output stream. Layout of the clause
is to our best standards. Deals with control structures and calls
via meta-call predicates as determined using the predicate property
meta_predicate. If Clause contains attributed variables, these are
treated as normal variables.
Variable names are by default generated using numbervars/4 using the
option singletons(true)
. This names the variables A, B, ... and
the singletons _. Variables can be named explicitly by binding
them to a term '$VAR'(Name)
, where Name is an atom denoting a
valid variable name (see the option numbervars(true)
from
write_term/2) as well as by using the variable_names(Bindings)
option from write_term/2.
Options processed in addition to write_term/2 options:
- variable_names(+Bindings)
- See above and write_term/2.
- indent(+Columns)
- Left margin used for the clause. Default
0
.
- module(+Module)
- Module used to determine whether a goal resolves to a meta
predicate. Default
user
.