/**
         
 * 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.
         
 */
         

         
/**
         
 * Source of test cases is the following standard:
         
 *   - Prolog General Core ISO/IEC 13211-1
         
 */
         

         
runner_file(stream, text, 'ISO 8.12 texts').
         

         
/****************************************************************/
         
/* Character Input / Output                                     */
         
/****************************************************************/
         

         
/* nl */
         

         
runner_pred(nl,0, stream, text, 'ISO 8.12.3.4').
         
runner_case(nl,0, stream, text, 'ISO 8.12.3.4, ISO 5') :-
         
    with_text_to(X, nl), (X=='\r'; X=='\r\n'; X=='\n').
         

         
/* put_code(C) */
         

         
runner_pred(put_code,1, stream, text, 'ISO 8.12.3.4').
         
runner_case(put_code,1, stream, text, 'ISO 8.12.3.4, ISO 3') :-
         
   with_text_to(X, (current_output(S), put_code(S, 116))), X=='t'.
         
runner_case(put_code,1, stream, text, 'ISO 8.12.3.4, ISO 10') :-
         
   catch((current_output(S), put_code(S, _)), error(E,_), true), E==instantiation_error.
         
runner_case(put_code,1, stream, text, 'ISO 8.12.3.4, ISO 11') :-
         
   catch((current_output(S), put_code(S, ty)), error(E,_), true), E==type_error(integer, ty).
         

         
/* peek_code(C) */
         

         
runner_pred(peek_code,1, stream, text, 'ISO 8.12.2.4').
         
runner_case(peek_code,1, stream, text, 'ISO 8.12.2.4, ISO 2') :-
         
   with_text_from('qwerty ', (current_input(S), peek_code(S, X))), X==113.
         
runner_case(peek_code,1, stream, text, 'ISO 8.12.2.4, XLOG 2') :-
         
   with_text_from('qwerty ', (current_input(S), peek_code(S, _), get_code(S, X))), X==113.
         
runner_case(peek_code,1, stream, text, 'ISO 8.12.2.4, ISO 6') :-
         
   with_text_from('\'qwerty\' ', (current_input(S), peek_code(S, X))), X==39.
         
runner_case(peek_code,1, stream, text, 'ISO 8.12.2.4, ISO 9') :-
         
   \+ with_text_from('qwerty ', (current_input(S), peek_code(S, 112))).
         
runner_case(peek_code,1, stream, text, 'ISO 8.12.2.4, ISO 11') :-
         
   with_text_from('', (current_input(S), peek_code(S, X))), X== -1.
         

         
/* get_code(C) */
         

         
runner_pred(get_code,1, stream, text, 'ISO 8.12.1.4').
         
runner_case(get_code,1, stream, text, 'ISO 8.12.1.4, ISO 2') :-
         
   with_text_from('qwerty ', (current_input(S), get_code(S, X))), X==113.
         
runner_case(get_code,1, stream, text, 'ISO 8.12.1.4, XLOG 2') :-
         
   with_text_from('qwerty ', (current_input(S), get_code(S,_), get_code(S,X))), X==119.
         
runner_case(get_code,1, stream, text, 'ISO 8.12.1.4, ISO 6') :-
         
   with_text_from('\'qwerty\' ', (current_input(S), get_code(S,X))), X==39.
         
runner_case(get_code,1, stream, text, 'ISO 8.12.1.4, ISO 8') :-
         
   \+ with_text_from('qwerty ', (current_input(S), get_code(S,112))).
         
runner_case(get_code,1, stream, text, 'ISO 8.12.1.4, ISO 10') :-
         
   with_text_from('', (current_input(S), get_code(S,X))), X== -1.