This repository has been archived on 2023-08-20. You can view files and clone it, but cannot push or open issues or pull requests.
yap-6.3/Logtalk/examples/hooks/hook.lgt
pmoura 9fe4d26c59 Logtalk 2.27.0 files.
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1539 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
2006-02-10 17:44:05 +00:00

31 lines
759 B
Plaintext

:- object(hook).
:- info([
version is 1.0,
author is 'Paulo Moura',
date is 2006/01/29,
comment is 'Example of an object defining compiler hook predicates.']).
:- public(hook/2).
:- mode(hook(@nonvar, -list), zero_or_one).
:- info(hook/2, [
comment is 'Compiler hook predicate.',
arguments is ['Term'-'Source file term', 'Terms'-'Resulting list of terms']]).
hook((:- info(Original)), [(:- info(New))]) :-
expand_author(Original, New).
expand_author([], []).
expand_author([Info| Infos], [Info2| Infos2]) :-
( Info = (author is Abbreviation) ->
author(Abbreviation, FullName),
Info2 = (author is FullName)
; Info = Info2
),
expand_author(Infos, Infos2).
author(pm, 'Paulo Moura, pmoura@logtalk.org').
:- end_object.