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/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* Copyright 2011-2019 OpenConcerto, by ILM Informatique. All rights reserved.
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*
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* The contents of this file are subject to the terms of the GNU General Public License Version 3
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* only ("GPL"). You may not use this file except in compliance with the License. You can obtain a
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* copy of the License at http://www.gnu.org/licenses/gpl-3.0.html See the License for the specific
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* language governing permissions and limitations under the License.
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*
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* When distributing the software, include this License Header Notice in each file.
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*/
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package org.openconcerto.utils.system;
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import java.nio.charset.StandardCharsets;
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import java.util.Iterator;
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import java.util.List;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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public final class Powershell {
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private static final Powershell INSTANCE = new Powershell();
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// No static methods to future-proof if the syntax changes in the future
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static public final Powershell getInstance() {
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return INSTANCE;
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}
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static private final Pattern PS_CHARS = Pattern.compile("\\R+|'");
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private Powershell() {
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}
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public final String quote(String s) {
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final StringBuffer sb = new StringBuffer((int) (s.length() * 1.1));
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quote(s, sb);
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return sb.toString();
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}
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public final void quote(String s, final StringBuffer sb) {
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sb.append("'");
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final Matcher m = PS_CHARS.matcher(s);
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while (m.find()) {
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final String replacement;
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if (m.group().equals("'")) {
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replacement = "''";
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} else {
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// `n isn't expanded in single quoted strings and it's complicated to handle all
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// needed escaping in double quoted strings, so just concatenate a single newline.
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replacement = "' + \"`n\" + '";
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}
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m.appendReplacement(sb, replacement);
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}
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m.appendTail(sb);
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sb.append("'");
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}
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// @("C:\Users\ILM\Documents", "2")
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public final String quoteArray(List<String> l) {
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final StringBuffer sb = new StringBuffer(l.size() * 64);
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sb.append("@(");
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final Iterator<String> iter = l.iterator();
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while (iter.hasNext()) {
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final String s = iter.next();
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quote(s, sb);
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if (iter.hasNext())
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sb.append(", ");
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}
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sb.append(")");
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return sb.toString();
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}
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public final String getEncodedCommand(final String s) {
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return java.util.Base64.getEncoder().encodeToString(s.getBytes(StandardCharsets.UTF_16LE));
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}
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}
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