
edinburgh.pl -- Some traditional Edinburgh predicates
This module defines predicates from `traditional Edinburgh Prolog'
(Dec10 and C-Prolog) whose functionality has been replaced by (ISO)
Standard Prolog.
display(+Term) is det
display(+Stream, +Term) is det- Write a term, ignoring operators and special syntax constructs such
as brace terms (
{a}) and lists ([a,b,c]). Currently does print
dicts using the dict notation.
- See also
- - write_canonical/2. SWI-Prolog's write_canonical/2, however,
prints lists using list notation to reduce incompatibility due to
the modified list functor (
'[|]' rather than `.`) and reduce
memory usage while parsing lists.
unknown(-Old, +New) is det- Edinburgh Prolog predicate for dealing dealing with undefined
procedures
reconsult(+FileOrList) is det- Load source
file(s), wiping the old content first. SWI-Prolog's
consult/1 and related predicates always do this.
- deprecated
- - The Edinburgh Prolog consult/reconsult distinction
is no longer used throughout most of the Prolog world.
debug is det
nodebug is det- Switch on/off debug mode. Note that nodebug/0 has been defined
such that is is not traced itself.
fileerrors(-Old, +New) is det- Query and change the fileerrors flag. Default it is set to
true, causing file operations to raise an exception. Setting
it to false activates the old Edinburgh mode of silent
failure.
- deprecated
- - New code should use catch/3 to handle file errors
silently