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PlantUML is a component that allows to quickly write diagrams from text.
There is a newer version: 1.2024.8
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
 * |
 * |      PlantUML : a free UML diagram generator
 * |
 * +=======================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
 *
 * If you like this project or if you find it useful, you can support us at:
 *
 * https://plantuml.com/patreon (only 1$ per month!)
 * https://plantuml.com/liberapay (only 1€ per month!)
 * https://plantuml.com/paypal
 *
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License V2.
 *
 * THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
 * LICENSE ("AGREEMENT"). [GNU General Public License V2]
 *
 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
 * RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
 *
 * You may obtain a copy of the License at
 *
 * https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * 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.
 *
 * PlantUML can occasionally display sponsored or advertising messages. Those
 * messages are usually generated on welcome or error images and never on
 * functional diagrams.
 * See https://plantuml.com/professional if you want to remove them
 *
 * Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
 * are owned by the author of their corresponding sources code (that is, their
 * textual description in PlantUML language). Those images are not covered by
 * this GPL v2 license.
 *
 * The generated images can then be used without any reference to the GPL v2 license.
 * It is not even necessary to stipulate that they have been generated with PlantUML,
 * although this will be appreciated by the PlantUML team.
 *
 * There is an exception : if the textual description in PlantUML language is also covered
 * by any license, then the generated images are logically covered
 * by the very same license.
 *
 * This is the IGY distribution (Install GraphViz by Yourself).
 * You have to install GraphViz and to setup the GRAPHVIZ_DOT environment variable
 * (see https://plantuml.com/graphviz-dot )
 *
 * Icons provided by OpenIconic :  https://useiconic.com/open
 * Archimate sprites provided by Archi :  http://www.archimatetool.com
 * Stdlib AWS provided by https://github.com/milo-minderbinder/AWS-PlantUML
 * Stdlib Icons provided https://github.com/tupadr3/plantuml-icon-font-sprites
 * ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
 * ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
 * CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
 * Brotli (c) by the Brotli Authors https://github.com/google/brotli
 * Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
 * Twemoji (c) by Twitter at https://twemoji.twitter.com/
 *
 */
package net.sourceforge.plantuml.preproc;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import net.sourceforge.plantuml.text.StringLocated;
import net.sourceforge.plantuml.text.TLineType;
import net.sourceforge.plantuml.tim.EaterException;
import net.sourceforge.plantuml.tim.EaterStartsub;
import net.sourceforge.plantuml.tim.TContext;
import net.sourceforge.plantuml.tim.TMemory;

public class Sub {
	// ::remove folder when __HAXE__

	private final String name;
	private final List lines = new ArrayList<>();
//	private boolean indentationDone = false;

	public Sub(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return super.toString() + " " + name;
	}

	public void add(StringLocated s) {
//		if (indentationDone) {
//			throw new IllegalStateException();
//		}
		this.lines.add(s);
	}

	public final List lines() {
//		if (indentationDone == false) {
//			CodeIteratorImpl.indentNow(lines);
//			indentationDone = true;
//		}
		return Collections.unmodifiableList(lines);
	}

	public static Sub fromFile(ReadLine reader, String blocname, TContext context, TMemory memory)
			throws IOException, EaterException {
		Sub result = null;
		StringLocated s = null;
		boolean skip = false;
		while ((s = reader.readLine()) != null) {
			final TLineType type = s.getTrimmed().getType();
			if (type == TLineType.STARTSUB) {
				final EaterStartsub eater = new EaterStartsub(s.getTrimmed());
				eater.analyze(context, memory);
				if (eater.getSubname().equals(blocname)) {
					skip = false;
					if (result == null) {
						result = new Sub(blocname);
					}
				}
				continue;
			}
			if (type == TLineType.ENDSUB && result != null) {
				skip = true;
			}
			if (result != null && skip == false) {
				result.add(s);
			}
		}
		return result;
	}

}