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/*******************************************************************************
* Copyright (c) 2017, 2018 Red Hat Inc. and others.
*
* This program and the accompanying materials are made
* available under the terms of the Eclipse Public License 2.0
* which is available at https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Red Hat - Initial Contribution
*******************************************************************************/
package org.eclipse.linuxtools.internal.mylyn.osio.rest.core;
public class URLQueryEncoder {
public final static String hexchar = "0123456789ABCDEF"; //$NON-NLS-1$
public static String transform(String input) {
StringBuilder resultStr = new StringBuilder();
for (char ch : input.toCharArray()) {
if (isSpecial(ch)) {
resultStr.append('%'); //$NON-NLS-1$
resultStr.append(hexchar.charAt((ch & 0xff) >> 4));
resultStr.append(hexchar.charAt(ch & 0xF));
} else {
resultStr.append(ch);
}
}
return resultStr.toString();
}
private static boolean isSpecial(char ch) {
if (ch > 128 || ch < 0)
return true;
return " $&+/;?@<>#%[]{}:\"".indexOf(ch) >= 0; //$NON-NLS-1$
}
}
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