pce->format

pce ->format: format=char_array, argument=any ...

Write formatted output to the main window. Normally only used for reporting debugging information. For example, the following query dumps the mapping represented by the hash_table object @classes to the terminal:

?- send(@classes, for_all,
                message(@pce, format, '%s\t%s\n',
                                @arg1, @arg2)).

See string->format for a description of the format specification.