86 lines
2.5 KiB
Java
86 lines
2.5 KiB
Java
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/*
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PS1.java
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*
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* Copyright (c) 2000, Ted Nelson and Tuomas Lukka
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*
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* You may use and distribute under the terms of either the GNU Lesser
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* General Public License, either version 2 of the license or,
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* at your choice, any later version. Alternatively, you may use and
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* distribute under the terms of the XPL.
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*
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* See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of
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* the licenses.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the README
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* file for more details.
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*
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*/
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/*
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* Written by Tuomas Lukka
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*/
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package org.gzigzag.heraclitus;
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import org.gzigzag.*;
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import java.util.*;
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/**
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* The first primitive set for Heraclitus clang.
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*/
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public class PS1 implements PrimitiveSet {
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public static final String rcsid = "$Id$";
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public static boolean dbg = true;
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static final void p(String s) { if(dbg) ZZLogger.log(s); }
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public Primitive get(String id) {
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if(id.equals("Move1Test"))
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return new Move1Test();
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return null;
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}
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/** First test: move a HERA1 (see ZZPrimitiveActions) datacursor one
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* step pos on d.1.
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*/
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static public class Move1Test implements Primitive {
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public ZZCell execute(ZZCell primitive, ZZCell cursorparam) {
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p("Move1test");
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ZZCell c0 = ZZCursorReal.get(cursorparam);
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ZZCell c = c0.s("d.1", 1);
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ZZCell v = ZZCursorReal.get(c);
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ZZCell t0 = ZZCursorReal.get(v);
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ZZCell t = t0.s("d.1", 1);
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p("M1T: "+cursorparam+" "+c0+" "+c+" "+t0+" "+t);
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ZZCursorReal.set(v, t);
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return cursorparam;
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}
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}
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/** A text translator: translates fixed strings into other fixed
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* strings.
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*/
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/** Dereference the cursorparameter: expects the cursorparameter
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* to point to another cursor, and makes it point to the place
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* the other cursor pointed to.
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*/
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static public class Deref1 implements Primitive {
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public ZZCell execute(ZZCell primitive, ZZCell cursorparam) {
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ZZCell c = ZZCursorReal.get(cursorparam);
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if(c == null) return null;
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ZZCursorReal.set(cursorparam, ZZCursorReal.get(c));
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return cursorparam;
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}
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}
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/** Execute a sequence of cells with the same cursorparam.
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*/
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static public class Seq1 implements Primitive {
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public ZZCell execute(ZZCell primitive, ZZCell cursorparam) {
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// ZZCell root = cursorParam.
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return cursorparam;
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}
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}
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}
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