Prolog "compare"
Admin User, erstellt 07. Apr. 2025
/**
* Prolog code for the structure lexical theory test cases.
*
* Source of test cases are the following standards:
* - Prolog General Core ISO/IEC 13211-1
* - Draft Technical Corrigendum 2, WG17, Ulrich Neumerkel
* <a href="https://www.complang.tuwien.ac.at/ulrich/iso-prolog/dtc2">www.complang.tuwien.ac.at/ulrich/iso-prolog/dtc2</a>
*
* Warranty & Liability
* To the extent permitted by applicable law and unless explicitly
* otherwise agreed upon, XLOG Technologies AG makes no warranties
* regarding the provided information. XLOG Technologies AG assumes
* no liability that any problems might be solved with the information
* provided by XLOG Technologies AG.
*
* Rights & License
* All industrial property rights regarding the information - copyright
* and patent rights in particular - are the sole property of XLOG
* Technologies AG. If the company was not the originator of some
* excerpts, XLOG Technologies AG has at least obtained the right to
* reproduce, change and translate the information.
*
* Reproduction is restricted to the whole unaltered document. Reproduction
* of the information is only allowed for non-commercial uses. Selling,
* giving away or letting of the execution of the library is prohibited.
* The library can be distributed as part of your applications and libraries
* for execution provided this comment remains unchanged.
*
* Restrictions
* Only to be distributed with programs that add significant and primary
* functionality to the library. Not to be distributed with additional
* software intended to replace any components of the library.
*
* Trademarks
* Jekejeke is a registered trademark of XLOG Technologies AG.
*/
runner_file(structure, compare, 'ISO 8.4.1 lexical').
/****************************************************************/
/* Lexical Comparison */
/****************************************************************/
/* X == Y */
runner_pred(==, 2, structure, compare, 'ISO 8.4.1.4').
runner_case(==, 2, structure, compare, 'ISO 8.4.1.4, ISO 13') :-
X == X.
runner_case(==, 2, structure, compare, 'ISO 8.4.1.4, ISO 15') :-
\+ _ == _.
/* X \== Y */
runner_pred(\==, 2, structure, compare, 'ISO 8.4.1.4').
runner_case(\==, 2, structure, compare, 'ISO 8.4.1.4, ISO 3') :-
\+ 1 \== 1.
runner_case(\==, 2, structure, compare, 'ISO 8.4.1.4, ISO 16') :-
_ \== _.
/* X @< Y */
runner_pred(@<, 2, structure, compare, 'ISO 8.4.1.4').
runner_case(@<, 2, structure, compare, 'ISO 8.4.1.4, ISO 8') :-
\+ foo(a,b) @< north(a).
runner_case(@<, 2, structure, compare, 'ISO 8.4.1.4, ISO 10') :-
foo(a,_) @< foo(b,_).
runner_case(@<, 2, structure, compare, 'ISO 8.4.1.4, ISO 11') :-
foo(X,a) @< foo(Y,b); foo(Y,a) @< foo(X,b).
/* X @> Y */
runner_pred(@>, 2, structure, compare, 'ISO 8.4.1.4').
runner_case(@>, 2, structure, compare, 'ISO 8.4.1.4, ISO 9') :-
foo(b) @> foo(a).
/* X @=< Y */
runner_pred(@=<, 2, structure, compare, 'ISO 8.4.1.4').
runner_case(@=<, 2, structure, compare, 'ISO 8.4.1.4, ISO 1') :-
1.0 @=< 1.
runner_case(@=<, 2, structure, compare, 'ISO 8.4.1.4, ISO 4') :-
aardvark @=< zebra.
runner_case(@=<, 2, structure, compare, 'ISO 8.4.1.4, ISO 5') :-
short @=< short.
runner_case(@=<, 2, structure, compare, 'ISO 8.4.1.4, ISO 6') :-
short @=< shorter.
runner_case(@=<, 2, structure, compare, 'ISO 8.4.1.4, ISO 12') :-
X @=< X.
runner_case(@=<, 2, structure, compare, 'ISO 8.4.1.4, ISO 14') :-
X @=< Y; Y @=< X.
/* X @>= Y */
runner_pred(@>=, 2, structure, compare, 'ISO 8.4.1.4').
runner_case(@>=, 2, structure, compare, 'ISO 8.4.1.4, ISO 7') :-
\+ short @>= shorter.
runner_case(@>=, 2, structure, compare, 'ISO 8.4.1.4, XLOG 1') :-
X @>= X.
/* compare(0, X, Y) */
runner_pred(compare, 3, structure, compare, 'Corr.2 8.4.2.4').
runner_case(compare, 3, structure, compare, 'Corr.2 8.4.2.4, XLOG 1') :-
compare(C, 1.0, 1), C == (<).
runner_case(compare, 3, structure, compare, 'Corr.2 8.4.2.4, XLOG 2') :-
compare(C, aardvark, zebra), C == (<).
runner_case(compare, 3, structure, compare, 'Corr.2 8.4.2.4, XLOG 3') :-
compare(C, short, short), C == (=).
runner_case(compare, 3, structure, compare, 'Corr.2 8.4.2.4, XLOG 4') :-
compare(C, X, X), C == (=).
runner_case(compare, 3, structure, compare, 'Corr.2 8.4.2.4, XLOG 5') :-
compare(C, foo(a,b), north(a)), C == (>).
runner_case(compare, 3, structure, compare, 'Corr.2 8.4.2.4, XLOG 6') :-
compare(C, foo(a,_), foo(b,_)), C == (<).
runner_case(compare, 3, structure, compare, 'Corr.2 8.4.2.4, XLOG 7') :-
compare(C, 'a', 'A'), C == (>).
runner_case(compare, 3, structure, compare, 'Corr.2 8.4.2.4, XLOG 8') :-
compare(C, 'œ', 'ü'), C == (>).