plantuml/src/net/sourceforge/plantuml/command/CommandMultilines.java

91 lines
2.7 KiB
Java

/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2023, Arnaud Roques
*
* Project Info: http://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* http://plantuml.com/patreon (only 1$ per month!)
* http://plantuml.com/paypal
*
* This file is part of PlantUML.
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the GNU 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 General Public
* License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
*
* Original Author: Arnaud Roques
*
*
*/
package net.sourceforge.plantuml.command;
import net.sourceforge.plantuml.command.regex.Matcher2;
import net.sourceforge.plantuml.command.regex.MyPattern;
import net.sourceforge.plantuml.command.regex.Pattern2;
import net.sourceforge.plantuml.core.Diagram;
public abstract class CommandMultilines<S extends Diagram> implements Command<S> {
private final Pattern2 starting;
public CommandMultilines(String patternStart) {
if (patternStart.startsWith("^") == false || patternStart.endsWith("$") == false) {
throw new IllegalArgumentException("Bad pattern " + patternStart);
}
this.starting = MyPattern.cmpile(patternStart);
}
public abstract String getPatternEnd();
public String[] getDescription() {
return new String[] { "START: " + starting.pattern(), "END: " + getPatternEnd() };
}
final public CommandControl isValid(BlocLines lines) {
if (isCommandForbidden())
return CommandControl.NOT_OK;
Matcher2 m1 = starting.matcher(lines.getFirst().getTrimmed().getString());
if (m1.matches() == false)
return CommandControl.NOT_OK;
if (lines.size() == 1)
return CommandControl.OK_PARTIAL;
m1 = MyPattern.cmpile(getPatternEnd()).matcher(lines.getLast().getTrimmed().getString());
if (m1.matches() == false)
return CommandControl.OK_PARTIAL;
actionIfCommandValid();
return CommandControl.OK;
}
protected boolean isCommandForbidden() {
return false;
}
protected void actionIfCommandValid() {
}
protected final Pattern2 getStartingPattern() {
return starting;
}
}