de.mhus.lib.sql.parser.QuotPart Maven / Gradle / Ivy
/**
* Copyright (C) 2020 Mike Hummel ([email protected])
*
* 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 de.mhus.lib.sql.parser;
import java.io.IOException;
import de.mhus.lib.core.parser.ConstantParsingPart;
import de.mhus.lib.core.parser.ParseException;
import de.mhus.lib.core.parser.ParseReader;
/**
* QuotPart class.
*
* @author mikehummel
* @version $Id: $Id
*/
public class QuotPart extends ConstantParsingPart {
boolean first = true;
private char marker;
/**
* Constructor for QuotPart.
*
* @param compiler a {@link de.mhus.lib.sql.parser.ICompiler} object.
*/
public QuotPart(ICompiler compiler) {}
/** {@inheritDoc} */
@Override
public boolean parse(char c, ParseReader str) throws ParseException, IOException {
if (first) {
marker = c;
str.consume();
first = false;
buffer.append(marker);
return true;
} else if (c == marker) {
str.consume();
buffer.append(marker);
if (str.isClosed()) return false;
char c2 = str.character();
if (c2 == marker) {
str.consume();
buffer.append(marker);
return true;
}
return false;
// } else
// if (c == '$') {
//
} else {
buffer.append(c);
str.consume();
}
return true;
}
}