org.ejml.equation.Macro Maven / Gradle / Ivy
/*
* Copyright (c) 2022, Peter Abeles. All Rights Reserved.
*
* This file is part of Efficient Java Matrix Library (EJML).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.ejml.equation;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
/**
* Definition of a macro. Each input will replace the word of its name
*
* @author Peter Abeles
*/
@SuppressWarnings("NullAway.Init")
public class Macro {
String name;
List inputs = new ArrayList();
TokenList tokens;
public TokenList execute( List replacements ) {
TokenList output = new TokenList();
TokenList.Token t = tokens.getFirst();
while (t != null) {
if (t.word != null) {
boolean matched = false;
for (int i = 0; i < inputs.size(); i++) {
if (inputs.get(i).equals(t.word)) {
output.insert(output.last, replacements.get(i).copy());
matched = true;
break;
}
}
if (!matched) {
output.insert(output.last, t.copy());
}
} else {
output.insert(output.last, t.copy());
}
t = t.next;
}
return output;
}
public class Assign extends Operation {
HashMap macros;
protected Assign( HashMap macros ) {
super("Macro:" + Macro.this.name);
this.macros = macros;
}
@Override
public void process() {
macros.put(Macro.this.name, Macro.this);
}
}
public Operation createOperation( HashMap macros ) {
return new Assign(macros);
}
}