mirror of https://github.com/octoleo/plantuml.git
93 lines
2.7 KiB
Java
93 lines
2.7 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 2009-2020, Arnaud Roques
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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 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.preproc;
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import java.io.IOException;
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import net.sourceforge.plantuml.StringLocated;
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import net.sourceforge.plantuml.command.regex.Matcher2;
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import net.sourceforge.plantuml.command.regex.MyPattern;
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import net.sourceforge.plantuml.command.regex.Pattern2;
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import net.sourceforge.plantuml.utils.StartUtils;
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public class UncommentReadLine implements ReadLine {
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private static final Pattern2 unpause = MyPattern.cmpile(StartUtils.PAUSE_PATTERN);
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private final ReadLine raw;
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private String headerToRemove;
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private boolean paused;
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public UncommentReadLine(ReadLine source) {
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this.raw = source;
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}
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public StringLocated readLine() throws IOException {
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final StringLocated result = raw.readLine();
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if (result == null) {
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return null;
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}
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final String tmp = StartUtils.beforeStartUml(result.getString());
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if (tmp != null) {
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headerToRemove = tmp;
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}
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if (paused) {
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final Matcher2 m2 = unpause.matcher(result.getString());
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if (m2.find()) {
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headerToRemove = m2.group(1);
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}
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}
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if (headerToRemove != null && headerToRemove.startsWith(result.getString())) {
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return new StringLocated("", result.getLocation());
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}
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if (headerToRemove != null && result.getString().startsWith(headerToRemove)) {
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return result.sub(headerToRemove.length(), result.getString().length());
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}
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return result;
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}
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public void close() throws IOException {
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this.raw.close();
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}
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public void setPaused(boolean paused) {
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this.paused = paused;
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}
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}
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