1 files changed, 112 insertions, 0 deletions
diff --git a/src/net/sourceforge/plantuml/command/SingleLineCommand2.java b/src/net/sourceforge/plantuml/command/SingleLineCommand2.java
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+++ b/src/net/sourceforge/plantuml/command/SingleLineCommand2.java
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+/* ========================================================================
+ * PlantUML : a free UML diagram generator
+ * ========================================================================
+ *
+ * (C) Copyright 2009-2014, Arnaud Roques
+ *
+ * Project Info:  http://plantuml.sourceforge.net
+ * 
+ * This file is part of PlantUML.
+ *
+ * Licensed under The MIT License (Massachusetts Institute of Technology License)
+ * 
+ * See http://opensource.org/licenses/MIT
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+ * IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ *
+ * Original Author:  Arnaud Roques
+ */
+package net.sourceforge.plantuml.command;
+
+import java.util.List;
+
+import net.sourceforge.plantuml.PSystemError;
+import net.sourceforge.plantuml.command.regex.RegexConcat;
+import net.sourceforge.plantuml.command.regex.RegexResult;
+import net.sourceforge.plantuml.core.Diagram;
+
+public abstract class SingleLineCommand2<S extends Diagram> implements Command<S> {
+
+	private final RegexConcat pattern;
+
+	public SingleLineCommand2(RegexConcat pattern) {
+		if (pattern == null) {
+			throw new IllegalArgumentException();
+		}
+		if (pattern.getPattern().startsWith("^") == false || pattern.getPattern().endsWith("$") == false) {
+			throw new IllegalArgumentException("Bad pattern " + pattern.getPattern());
+		}
+
+		this.pattern = pattern;
+	}
+
+	public String[] getDescription() {
+		return new String[] { pattern.getPattern() };
+	}
+
+	final public CommandControl isValid(List<String> lines) {
+		if (lines.size() != 1) {
+			return CommandControl.NOT_OK;
+		}
+		if (isCommandForbidden()) {
+			return CommandControl.NOT_OK;
+		}
+		final String line = lines.get(0).trim();
+		final boolean result = pattern.match(line);
+		if (result) {
+			actionIfCommandValid();
+		}
+		return result ? CommandControl.OK : CommandControl.NOT_OK;
+	}
+
+	protected boolean isCommandForbidden() {
+		return false;
+	}
+
+	protected void actionIfCommandValid() {
+	}
+
+	public final CommandExecutionResult execute(S system, List<String> lines) {
+		if (lines.size() != 1) {
+			throw new IllegalArgumentException();
+		}
+		final String line = lines.get(0).trim();
+		if (isForbidden(line)) {
+			return CommandExecutionResult.error("Forbidden line " + line);
+		}
+
+		final RegexResult arg = pattern.matcher(line);
+		if (arg == null) {
+			return CommandExecutionResult.error("Cannot parse line " + line);
+		}
+		if (system instanceof PSystemError) {
+			return CommandExecutionResult.error("PSystemError cannot be cast");
+		}
+		// System.err.println("lines="+lines);
+		// System.err.println("pattern="+pattern.getPattern());
+		return executeArg(system, arg);
+	}
+
+	protected boolean isForbidden(String line) {
+		return false;
+	}
+
+	protected abstract CommandExecutionResult executeArg(S system, RegexResult arg);
+
+}