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/*******************************************************************************
* Copyright (c) 2011 SAP AG
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Lazar Kirchev, SAP AG - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.console.completion;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import org.eclipse.equinox.console.completion.common.Completer;
/**
* This class provides completion for arbitrary strings
*
*/
public class StringsCompleter implements Completer {
private Set<String> strings;
private boolean isCaseSensitive;
public StringsCompleter(Set<String> strings, boolean isCaseSensitive) {
this.strings = strings;
this.isCaseSensitive = isCaseSensitive;
}
public Map<String, Integer> getCandidates(String buffer, int cursor) {
String currentToken = CommandLineParser.getCurrentToken(buffer, cursor);
if (currentToken == null) {
return new HashMap<String, Integer>();
}
if (!isCaseSensitive) {
currentToken = currentToken.toLowerCase();
}
int startIndex = cursor - currentToken.length();
// if currentToken is empty string, then there is nothing to complete
// the only exception is if the previous character is $, which signifies
// that a variable name is expected; in this case all strings will be
// returned as candidates
if(currentToken.equals("") && buffer.charAt(startIndex - 1) != '$') {
return new HashMap<String, Integer>();
}
Map<String, Integer> result = new HashMap<String, Integer>();
for(String candidate : strings) {
if (isCaseSensitive) {
if (candidate.startsWith(currentToken)) {
result.put(candidate, startIndex);
}
} else {
if (candidate.toLowerCase().startsWith(currentToken)) {
result.put(candidate, startIndex);
}
}
}
return result;
}
}
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