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// 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 Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * PlantUML distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see .
 *
 * 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 LGPL license.
 *
 * The generated images can then be used without any reference to the LGPL 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;

import static java.util.Objects.requireNonNull;
import static net.sourceforge.plantuml.utils.CharsetUtils.charsetOrDefault;

import java.io.IOException;
import java.io.Reader;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import com.plantuml.api.cheerpj.WasmLog;

import net.sourceforge.plantuml.file.AParentFolderRegular;
import net.sourceforge.plantuml.preproc.Defines;
import net.sourceforge.plantuml.preproc.FileWithSuffix;
import net.sourceforge.plantuml.preproc.ImportedFiles;
import net.sourceforge.plantuml.preproc.ReadLineNumbered;
import net.sourceforge.plantuml.preproc.ReadLineReader;
import net.sourceforge.plantuml.preproc.UncommentReadLine;
import net.sourceforge.plantuml.preproc2.Preprocessor;
import net.sourceforge.plantuml.security.SFile;
import net.sourceforge.plantuml.text.StringLocated;
import net.sourceforge.plantuml.utils.StartUtils;

public final class BlockUmlBuilder implements DefinitionsContainer {
	// ::remove file when __HAXE__

	private final List blocks = new ArrayList<>();
	private Set usedFiles = new HashSet<>();
	private final UncommentReadLine reader;
	private final Defines defines;
	private final ImportedFiles importedFiles;
	private final Charset charset;

	/**
	 * @deprecated being kept for backwards compatibility, perhaps other projects
	 *             are using this?
	 */
	@Deprecated
	public BlockUmlBuilder(List config, String charset, Defines defines, Reader readerInit, SFile newCurrentDir,
			String desc) throws IOException {
		this(config, charsetOrDefault(charset), defines, readerInit, newCurrentDir, desc);
	}

	/**
	 * @deprecated being kept for backwards compatibility, perhaps other projects
	 *             are using this?
	 */
	@Deprecated
	public BlockUmlBuilder(List config, String charset, Defines defines, Reader reader) throws IOException {
		this(config, charset, defines, reader, null, null);
	}

	public BlockUmlBuilder(List config, Charset charset, Defines defines, Reader readerInit,
			SFile newCurrentDir, String desc) throws IOException {

		this.defines = defines;
		this.charset = requireNonNull(charset);
		this.reader = new UncommentReadLine(ReadLineReader.create(readerInit, desc));
		this.importedFiles = ImportedFiles.createImportedFiles(new AParentFolderRegular(newCurrentDir));

		try (ReadLineNumbered includer = new Preprocessor(config, reader)) {
			init(includer);
		} finally {
			readerInit.close();
		}
	}

	private void init(ReadLineNumbered includer) throws IOException {
		StringLocated s = null;
		List current = null;
		boolean paused = false;

		while ((s = includer.readLine()) != null) {
			if (StartUtils.isArobaseStartDiagram(s.getString())) {
				current = new ArrayList<>();
				paused = false;
			}
			if (StartUtils.isArobasePauseDiagram(s.getString())) {
				paused = true;
				reader.setPaused(true);
			}
			if (StartUtils.isExit(s.getString())) {
				paused = true;
				reader.setPaused(true);
			}
			if (current != null && paused == false) {
				current.add(s);
			} else if (paused) {
				final StringLocated append = StartUtils.getPossibleAppend(s);
				if (append != null)
					current.add(append);

			}

			if (StartUtils.isArobaseUnpauseDiagram(s.getString())) {
				paused = false;
				reader.setPaused(false);
			}
			if (StartUtils.isArobaseEndDiagram(s.getString()) && current != null) {
				if (paused)
					current.add(s);

				WasmLog.log("...text loaded...");
				final BlockUml uml = new BlockUml(current, defines.cloneMe(), null, this, charset);
				usedFiles.addAll(uml.getIncluded());
				blocks.add(uml);
				current = null;
				reader.setPaused(false);
			}
		}
	}

	public List getBlockUmls() {
		return Collections.unmodifiableList(blocks);
	}

	public final Set getIncludedFiles() {
		return Collections.unmodifiableSet(usedFiles);
	}

	public List getDefinition(String name) {
		for (BlockUml block : blocks)
			if (block.isStartDef(name))
				return block.getDefinition(false);

		return Collections.emptyList();
	}

	public final ImportedFiles getImportedFiles() {
		return importedFiles;
	}

	/**
	 * @deprecated being kept for backwards compatibility, perhaps other projects
	 *             are using this?
	 */
	@Deprecated
	public final String getCharset() {
		return charset.name();
	}

}




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