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| author | Jed Barber <jjbarber@y7mail.com> | 2014-04-04 01:48:43 +1100 |
|---|---|---|
| committer | Jed Barber <jjbarber@y7mail.com> | 2014-04-04 01:48:43 +1100 |
| commit | 19e66dbd8fd3bd66f286bbbcd7ce842d727a4422 (patch) | |
| tree | 07f0d484b32c9792a5d18921048243d5ed924873 /src/misc.prolog | |
| parent | b2081e26122b3937f04caa62ec864fc343f83ef1 (diff) | |
Makefile added, files reorganised
Diffstat (limited to 'src/misc.prolog')
| -rw-r--r-- | src/misc.prolog | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/misc.prolog b/src/misc.prolog new file mode 100644 index 0000000..6d8ad68 --- /dev/null +++ b/src/misc.prolog @@ -0,0 +1,20 @@ + +:- module(misc, [filter/3, head/2, tail/2]). + + + + +filter(List, Predicate, Result) :- + Test =.. [Predicate,X], + findall(X, Test, No), + subtract(List, No, Result). + + +head(X,[Y]) :- X = Y. +head(X,[Y|_]) :- X = Y. + + +tail(X,[]) :- X = []. +tail(X,[_]) :- X = []. +tail(X,[_|Y]) :- X = Y. + |