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90 lines
2.8 KiB
Java
90 lines
2.8 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2024, Arnaud Roques
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*
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* Project Info: https://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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* https://plantuml.com/patreon (only 1$ per month!)
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* https://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*
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*/
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package net.sourceforge.plantuml.preproc2;
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import java.io.IOException;
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import net.sourceforge.plantuml.StringUtils;
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import net.sourceforge.plantuml.core.DiagramType;
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import net.sourceforge.plantuml.preproc.ReadLine;
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import net.sourceforge.plantuml.text.StringLocated;
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import net.sourceforge.plantuml.utils.StartUtils;
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public class ReadFilterMergeLines implements ReadFilter {
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public ReadLine applyFilter(final ReadLine source) {
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return new ReadLine() {
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private boolean manageEndingBackslash = true;
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public void close() throws IOException {
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source.close();
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}
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public StringLocated readLine() throws IOException {
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StringLocated result = source.readLine();
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if (result != null && StartUtils.isArobaseStartDiagram(result.getString())
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&& isDitaa(result.getString())) {
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this.manageEndingBackslash = false;
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}
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if (result != null && StartUtils.isArobaseEndDiagram(result.getString())) {
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this.manageEndingBackslash = true;
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}
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ReadLine sourceWithoutComment = null;
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while (result != null && manageEndingBackslash && StringUtils.endsWithBackslash(result.getString())) {
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if (sourceWithoutComment == null) {
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sourceWithoutComment = new ReadFilterQuoteComment().applyFilter(source);
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}
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final StringLocated next = sourceWithoutComment.readLine();
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if (next == null) {
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break;
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} else {
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result = result.mergeEndBackslash(next);
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}
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}
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return result;
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}
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private boolean isDitaa(String string) {
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return DiagramType.getTypeFromArobaseStart(StringUtils.trinNoTrace((string))) == DiagramType.DITAA;
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}
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};
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}
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}
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