net.sourceforge.plantuml.ebnf.EbnfEngine Maven / Gradle / Ivy
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PlantUML is a component that allows to quickly write diagrams from text.
// 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 stack = new ArrayDeque<>();
private final FontConfiguration fontConfiguration;
private final Style style;
private final HColorSet colorSet;
private final ISkinParam skinParam;
private final HColor lineColor;
public EbnfEngine(ISkinParam skinParam) {
this.skinParam = skinParam;
this.style = ETile.getStyleSignature().getMergedStyle(skinParam.getCurrentStyleBuilder());
this.fontConfiguration = style.getFontConfiguration(skinParam.getIHtmlColorSet());
this.colorSet = skinParam.getIHtmlColorSet();
this.lineColor = style.value(PName.LineColor).asColor(skinParam.getIHtmlColorSet());
}
public void push(Token element) {
stack.addFirst(
new ETileBox(element.getData(), element.getSymbol(), fontConfiguration, style, colorSet, skinParam));
}
public void optional() {
final ETile arg1 = stack.removeFirst();
stack.addFirst(new ETileOptional(arg1, skinParam));
}
public void repetitionZeroOrMore(boolean isCompact) {
final ETile arg1 = stack.removeFirst();
if (isCompact)
stack.addFirst(new ETileZeroOrMore(arg1));
else
stack.addFirst(new ETileOptional(new ETileOneOrMore(arg1), skinParam));
}
public void repetitionOneOrMore() {
final ETile arg1 = stack.removeFirst();
stack.addFirst(new ETileOneOrMore(arg1));
}
public void repetitionSymbol() {
final ETile arg1 = stack.removeFirst();
final String arg2 = stack.removeFirst().getRepetitionLabel() + "\u00D7";
stack.addFirst(new ETileOneOrMore(arg1, arg2, fontConfiguration.bigger(-2), skinParam));
}
public void alternation() {
final ETile arg1 = stack.removeFirst();
final ETile arg2 = stack.removeFirst();
if (arg1 instanceof ETileAlternation) {
arg1.push(arg2);
stack.addFirst(arg1);
} else if (arg2 instanceof ETileAlternation) {
arg2.push(arg1);
stack.addFirst(arg2);
} else {
final ETile concat = new ETileAlternation();
concat.push(arg1);
concat.push(arg2);
stack.addFirst(concat);
}
}
public void concatenation() {
final ETile arg1 = stack.removeFirst();
final ETile arg2 = stack.removeFirst();
if (arg1 instanceof ETileConcatenation) {
arg1.push(arg2);
stack.addFirst(arg1);
} else if (arg2 instanceof ETileConcatenation) {
arg2.push(arg1);
stack.addFirst(arg2);
} else {
final ETile concat = new ETileConcatenation();
concat.push(arg1);
concat.push(arg2);
stack.addFirst(concat);
}
}
public TextBlock getTextBlock() {
if (stack.size() != 1)
return syntaxError(fontConfiguration, skinParam);
return new ETileWithCircles(stack.peekFirst(), lineColor);
}
public static TextBlock syntaxError(FontConfiguration fontConfiguration, ISkinSimple spriteContainer) {
final Display msg = Display.create("Syntax error!");
return msg.create(fontConfiguration, HorizontalAlignment.LEFT, spriteContainer);
}
public void commentBelow(String comment) {
final ETile arg1 = stack.peekFirst();
if (arg1 == null)
throw new IllegalStateException();
arg1.addCommentBelow(comment);
}
public void commentAbove(String comment) {
final ETile arg1 = stack.peekFirst();
if (arg1 == null)
throw new IllegalStateException();
arg1.addCommentAbove(comment);
}
}