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83 lines
2.0 KiB
Java
83 lines
2.0 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* Project Info: http://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* http://plantuml.com/patreon (only 1$ per month!)
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* http://plantuml.com/paypal
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*
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* This file is part of Smetana.
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* Smetana is a partial translation of Graphviz/Dot sources from C to Java.
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*
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* (C) Copyright 2009-2020, Arnaud Roques
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*
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* This translation is distributed under the same Licence as the original C program.
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*
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* THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
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* LICENSE ("AGREEMENT"). [Eclipse Public License - v 1.0]
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*
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* ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
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* RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
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*
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* You may obtain a copy of the License at
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*
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package smetana.core;
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public class OFFSET {
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private final String field;
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private final int sign;
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public int getSign() {
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return sign;
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}
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public OFFSET(String field) {
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this.field = field;
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this.sign = 1;
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}
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private OFFSET(int sign) {
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this.field = null;
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this.sign = sign;
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}
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@Override
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public String toString() {
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if (field == null)
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return "[" + sign + "]";
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return "[" + field + "]";
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}
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public static OFFSET externalHolder() {
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return new OFFSET(-1);
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}
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public static OFFSET zero() {
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return new OFFSET(0);
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}
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public OFFSET negative() {
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// Just to know when we go negative
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return this;
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}
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public String getField() {
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return field;
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}
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}
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