mirror of https://github.com/octoleo/plantuml.git
284 lines
9.9 KiB
Java
284 lines
9.9 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.regexdiagram;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.util.ArrayDeque;
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import java.util.ArrayList;
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import java.util.Deque;
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import java.util.List;
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import net.sourceforge.plantuml.FileFormatOption;
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import net.sourceforge.plantuml.TitledDiagram;
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import net.sourceforge.plantuml.command.CommandExecutionResult;
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import net.sourceforge.plantuml.core.DiagramDescription;
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import net.sourceforge.plantuml.core.ImageData;
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import net.sourceforge.plantuml.core.UmlSource;
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import net.sourceforge.plantuml.ebnf.ETile;
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import net.sourceforge.plantuml.ebnf.ETileAlternation;
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import net.sourceforge.plantuml.ebnf.ETileBox;
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import net.sourceforge.plantuml.ebnf.ETileConcatenation;
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import net.sourceforge.plantuml.ebnf.ETileOneOrMore;
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import net.sourceforge.plantuml.ebnf.ETileOptional;
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import net.sourceforge.plantuml.ebnf.ETileZeroOrMore;
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import net.sourceforge.plantuml.ebnf.Symbol;
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import net.sourceforge.plantuml.ebnf.TextBlockable;
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import net.sourceforge.plantuml.klimt.color.HColor;
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import net.sourceforge.plantuml.klimt.color.HColorSet;
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import net.sourceforge.plantuml.klimt.color.HColors;
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import net.sourceforge.plantuml.klimt.drawing.UGraphic;
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import net.sourceforge.plantuml.klimt.font.FontConfiguration;
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import net.sourceforge.plantuml.klimt.font.StringBounder;
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import net.sourceforge.plantuml.klimt.geom.XDimension2D;
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import net.sourceforge.plantuml.klimt.shape.AbstractTextBlock;
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import net.sourceforge.plantuml.klimt.shape.TextBlock;
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import net.sourceforge.plantuml.klimt.shape.TextBlockUtils;
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import net.sourceforge.plantuml.skin.UmlDiagramType;
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import net.sourceforge.plantuml.style.ISkinParam;
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import net.sourceforge.plantuml.style.PName;
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import net.sourceforge.plantuml.style.Style;
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import net.sourceforge.plantuml.utils.BlocLines;
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import net.sourceforge.plantuml.utils.CharInspector;
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public class PSystemRegex extends TitledDiagram {
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private final List<TextBlockable> expressions = new ArrayList<>();
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public PSystemRegex(UmlSource source) {
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super(source, UmlDiagramType.REGEX, null);
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final ISkinParam skinParam = getSkinParam();
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this.style = ETile.getStyleSignature().getMergedStyle(skinParam.getCurrentStyleBuilder());
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this.fontConfiguration = style.getFontConfiguration(skinParam.getIHtmlColorSet());
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this.colorSet = skinParam.getIHtmlColorSet();
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this.lineColor = style.value(PName.LineColor).asColor(skinParam.getIHtmlColorSet());
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}
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public DiagramDescription getDescription() {
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return new DiagramDescription("(Regular Expression)");
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}
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private final Deque<ETile> stack = new ArrayDeque<>();
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private final FontConfiguration fontConfiguration;
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private final Style style;
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private final HColorSet colorSet;
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private final HColor lineColor;
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// public CommandExecutionResult addBlocLines(BlocLines blines, String commentAbove, String commentBelow) {
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// final boolean isCompact = getPragma().isDefine("compact");
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// final CharIterator it = new CharIteratorImpl(blines);
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// final EbnfExpression tmp1 = EbnfExpression.create(it, isCompact, commentAbove, commentBelow);
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// if (tmp1.isEmpty())
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// return CommandExecutionResult.error("Unparsable expression");
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// expressions.add(tmp1);
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// return CommandExecutionResult.ok();
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//
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// }
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//
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// public CommandExecutionResult addNote(final Display note, Colors colors) {
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// expressions.add(new TextBlockable() {
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// @Override
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// public TextBlock getUDrawable(ISkinParam skinParam) {
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// final FloatingNote f = FloatingNote.create(note, skinParam, SName.ebnf);
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// return TextBlockUtils.withMargin(f, 0, 0, 5, 15);
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// }
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// });
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// return CommandExecutionResult.ok();
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// }
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@Override
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protected ImageData exportDiagramNow(OutputStream os, int index, FileFormatOption fileFormatOption)
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throws IOException {
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return createImageBuilder(fileFormatOption).drawable(getTextBlock()).write(os);
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}
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@Override
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protected TextBlock getTextBlock() {
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// while (stack.size() > 1)
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// concatenation();
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final ETile peekFirst = stack.peekFirst();
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final TextBlock tb = new AbstractTextBlock() {
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@Override
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public void drawU(UGraphic ug) {
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peekFirst.drawU(ug.apply(HColors.BLACK));
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}
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@Override
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public XDimension2D calculateDimension(StringBounder stringBounder) {
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return peekFirst.calculateDimension(stringBounder);
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}
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};
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return TextBlockUtils.addBackcolor(tb, null);
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}
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public CommandExecutionResult addBlocLines(BlocLines from) {
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final CharInspector it = from.inspector();
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final List<ReToken> parsed1 = RegexExpression.parse(it);
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// System.err.println("parsed1=" + parsed1);
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final List<ReToken> parsed2 = addImplicitConcatenation(parsed1);
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// System.err.println("parsed2=" + parsed2);
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final ShuntingYard shuntingYard = new ShuntingYard(parsed2.iterator());
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final List<ReToken> result = shuntingYard.getOuputQueue();
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// System.err.println("result=" + result);
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for (ReToken token : result)
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if (token.getType() == ReTokenType.SIMPLE_CHAR)
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push(token, Symbol.TERMINAL_STRING1);
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else if (token.getType() == ReTokenType.ESCAPED_CHAR)
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push(token, Symbol.TERMINAL_STRING1);
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else if (token.getType() == ReTokenType.GROUP)
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push(token, Symbol.SPECIAL_SEQUENCE);
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else if (token.getType() == ReTokenType.CLASS)
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push(token, Symbol.LITTERAL);
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else if (token.getType() == ReTokenType.ANCHOR)
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push(token, Symbol.LITTERAL);
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else if (token.getType() == ReTokenType.CONCATENATION_IMPLICIT)
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concatenation();
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else if (token.getType() == ReTokenType.ALTERNATIVE)
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alternation();
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else if (token.getType() == ReTokenType.QUANTIFIER && token.getData().startsWith("*"))
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repetitionZeroOrMore(false);
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else if (token.getType() == ReTokenType.QUANTIFIER && token.getData().startsWith("+"))
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repetitionOneOrMore();
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else if (token.getType() == ReTokenType.QUANTIFIER && token.getData().startsWith("?"))
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optional();
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else
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throw new UnsupportedOperationException(token.toString());
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return CommandExecutionResult.ok();
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}
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private List<ReToken> addImplicitConcatenation(List<ReToken> list) {
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final List<ReToken> result = new ArrayList<>();
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for (ReToken token : list) {
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if (result.size() > 0
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&& ReTokenType.needImplicitConcatenation(result.get(result.size() - 1).getType(), token.getType()))
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result.add(new ReToken(ReTokenType.CONCATENATION_IMPLICIT, ""));
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result.add(token);
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}
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return result;
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}
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private void push(ReToken element, Symbol type) {
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// final Symbol type = Symbol.LITTERAL;
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stack.addFirst(new ETileBox(element.getData(), type, fontConfiguration, style, colorSet, getSkinParam()));
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}
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private void repetitionZeroOrMore(boolean isCompact) {
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final ETile arg1 = stack.removeFirst();
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if (isCompact)
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stack.addFirst(new ETileZeroOrMore(arg1));
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else
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stack.addFirst(new ETileOptional(new ETileOneOrMore(arg1), getSkinParam()));
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}
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private void optional() {
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final ETile arg1 = stack.removeFirst();
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stack.addFirst(new ETileOptional(arg1, getSkinParam()));
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}
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private void repetitionOneOrMore() {
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final ETile arg1 = stack.removeFirst();
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stack.addFirst(new ETileOneOrMore(arg1));
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}
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private void alternation() {
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final ETile arg1 = stack.removeFirst();
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final ETile arg2 = stack.removeFirst();
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if (arg1 instanceof ETileAlternation) {
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arg1.push(arg2);
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stack.addFirst(arg1);
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} else if (arg2 instanceof ETileAlternation) {
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arg2.push(arg1);
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stack.addFirst(arg2);
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} else {
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final ETile concat = new ETileAlternation();
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concat.push(arg1);
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concat.push(arg2);
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stack.addFirst(concat);
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}
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}
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private void concatenation() {
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final ETile arg1 = stack.removeFirst();
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final ETile arg2 = stack.removeFirst();
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if (isBoxMergeable(arg1) && isBoxMergeable(arg2)) {
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final ETileBox box1 = (ETileBox) arg1;
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final ETileBox box2 = (ETileBox) arg2;
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stack.addFirst(box2.mergeWith(box1));
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return;
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}
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if (isConcatenation1Mergeable(arg1) && isBoxMergeable(arg2)) {
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final ETileConcatenation concat1 = (ETileConcatenation) arg1;
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final ETileBox box1 = (ETileBox) concat1.getFirst();
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final ETileBox box2 = (ETileBox) arg2;
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concat1.overideFirst(box2.mergeWith(box1));
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stack.addFirst(concat1);
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return;
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}
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if (arg1 instanceof ETileConcatenation) {
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arg1.push(arg2);
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stack.addFirst(arg1);
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} else if (arg2 instanceof ETileConcatenation) {
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arg2.push(arg1);
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stack.addFirst(arg2);
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} else {
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final ETile concat = new ETileConcatenation();
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concat.push(arg1);
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concat.push(arg2);
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stack.addFirst(concat);
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}
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}
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private boolean isConcatenation1Mergeable(ETile tile) {
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if (tile instanceof ETileConcatenation) {
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final ETileConcatenation concat = (ETileConcatenation) tile;
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return isBoxMergeable(concat.getFirst());
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}
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return false;
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}
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private boolean isBoxMergeable(ETile tile) {
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if (tile instanceof ETileBox) {
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final ETileBox box = (ETileBox) tile;
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return box.getSymbol() == Symbol.TERMINAL_STRING1;
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}
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return false;
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}
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}
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