com.blazebit.persistence.impl.util.JpqlFunctionUtil Maven / Gradle / Ivy
/*
* Copyright 2014 - 2019 Blazebit.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.blazebit.persistence.impl.util;
/**
* @author Moritz Becker
* @since 1.4.0
*/
public class JpqlFunctionUtil {
private JpqlFunctionUtil() {
}
public static String unquote(String s) {
StringBuilder sb = new StringBuilder(s.length());
boolean quote = false;
for (int i = 1; i < s.length() - 1; i++) {
final char c = s.charAt(i);
if (quote) {
quote = false;
if (c != '\'') {
sb.append('\'');
}
sb.append(c);
} else {
if (c == '\'') {
quote = true;
} else {
sb.append(c);
}
}
}
if (quote) {
sb.append('\'');
}
return sb.toString();
}
}