| /******************************************************************************* |
| * Copyright (c) 2011, 2017 SAP AG and others. |
| * 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; |
| } |
| |
| @Override |
| public Map<String, Integer> getCandidates(String buffer, int cursor) { |
| String currentToken = CommandLineParser.getCurrentToken(buffer, cursor); |
| if (currentToken == null) { |
| return new HashMap<>(); |
| } |
| 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<>(); |
| } |
| |
| Map<String, Integer> result = new HashMap<>(); |
| |
| 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; |
| } |
| |
| } |