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/*******************************************************************************
* Copyright (c) 2007, 2020 Symbian Software Systems and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Andrew Ferguson (Symbian) - Initial implementation
* Alexander Fedorov (ArSysOp) - Bug 561992
*******************************************************************************/
package org.eclipse.cdt.internal.core.pdom.export;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.cdt.core.index.export.Messages;
import org.eclipse.core.runtime.CoreException;
/**
* Helper methods for command-line options
* <br>
* <b>Non-API</b> Should a more suitable way for manipulating command-line arguments become usable
* in the future we will switch to that.
*/
public class CLIUtil {
public static final String UNQUALIFIED_PARAMETERS = "UNQUALIFIED_PARAMETERS"; //$NON-NLS-1$
/**
* Returns the list of options associated with the specified option
* @param arguments the arguments map
* @param opt the option name to check
* @param number the number of parameters
* @throws CoreException if the number of parameters is not the specified expected number
*/
public static List<String> getArg(Map<String, List<String>> arguments, String opt, int number)
throws CoreException {
List<String> list = arguments.get(opt);
if (list == null || list.size() != number) {
String msg = MessageFormat.format(Messages.CLIUtil_OptionParametersMismatch,
new Object[] { opt, "" + number }); //$NON-NLS-1$
GeneratePDOMApplication.fail(msg);
}
return list;
}
/**
* Returns a map of String option to List of String parameters.
*/
public static Map<String, List<String>> parseToMap(String[] args) {
Map<String, List<String>> result = new HashMap<>();
String current = null;
for (String arg : args) {
if (arg.startsWith("-")) { //$NON-NLS-1$
current = arg;
result.put(current, new ArrayList<String>());
} else {
if (current == null) {
current = UNQUALIFIED_PARAMETERS;
result.put(current, new ArrayList<String>());
}
(result.get(current)).add(arg);
}
}
return result;
}
}
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