/**
* Modern Albufeira Prolog Interpreter
*
* 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.
*/
import {
exec_unify, exec_build, check_atom,
check_sink, Source, Sink, set, make_check
} from "../../nova/core.mjs";
/*********************************************************************/
/* open_input_atom_stream/2 */
/*********************************************************************/
/**
* open_input_atom_stream(A, S): internal only
* The built-in succeeds in S with a new input stream for the atom A.
*/
function test_open_input_atom_stream(args) {
let text = exec_build(args[0]);
check_atom(text);
let src = new Source();
src.buf = text;
return exec_unify(args[1], src);
}
/*********************************************************************/
/* open_output_atom_stream/1 and sys_output_atom_stream_get/2 */
/*********************************************************************/
/**
* open_output_atom_stream(S): internal only
* The built-in succeeds in S with a new output stream.
*/
function test_open_output_atom_stream(args) {
let dst = new Sink();
dst.data = [];
dst.send = mem_send;
return exec_unify(args[0], dst);
}
function mem_send(data, buf) {
data.push(buf);
return data;
}
/**
* sys_output_atom_stream_get(S, A): internal only
* The built-in succeeds in A with the content of the output stream S.
*/
function test_sys_output_atom_stream_get(args) {
let writer = exec_build(args[0]);
check_sink(writer);
let res = writer.data.join("");
return exec_unify(args[1], res);
}
/*********************************************************************/
/* Aux Lib Init */
/*********************************************************************/
export function main() {
// system specials, input/output, internal only
set("open_input_atom_stream", 2, make_check(test_open_input_atom_stream));
set("open_output_atom_stream", 1, make_check(test_open_output_atom_stream));
set("sys_output_atom_stream_get", 2, make_check(test_sys_output_atom_stream_get));
}