A Portable Prolog Predicate for Printing Rational Terms
Theofrastos Mantadelis and Ricardo Rocha
July 2014
Abstract
Rational terms or rational trees are terms with one or more infinite
sub-terms but with a finite representation. Rational terms appeared as
a side effect of omitting the occurs check in the unification
of terms, but their support across Prolog systems varies and often
fails to provide the expected functionality. A common problem is the
lack of support for printing query bindings with rational terms. In
this paper, we present a survey discussing the support of rational
terms among different Prolog systems and we propose the integration of
a Prolog predicate, that works in several existing Prolog systems, in
order to overcome the technical problem of printing rational terms.
Our rational term printing predicate could be easily adapted to work
for the top query printouts, for user printing and for debugging
purposes.
Bibtex
@InProceedings{mantadelis-ciclops14,
author = {T. Mantadelis and R. Rocha},
title = {{A Portable Prolog Predicate for Printing Rational Terms}},
booktitle = {Proceedings of the International Joint Workshop on Implementation of Constraint and Logic
Programming Systems and Logic-based Methods in Programming Environments (CICLOPS-WLPE 2014)},
pages = {141--153},
editor = {T. Stroeder and T. Swift},
month = {July},
year = {2014},
address = {Vienna, Austria},
}
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RWTH Aachen University