org.eclipse.lyo.client.exception.FixMessageFormat Maven / Gradle / Ivy
/*
* Copyright (c) 2020 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0, or the Eclipse Distribution License 1.0
* which is available at http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
package org.eclipse.lyo.client.exception;
public class FixMessageFormat {
private static final char SINGLE_QUOTE = '\''; //@01A3
private static final char CURLY_BRACE_LEFT = '{';
private static final char CURLY_BRACE_RIGHT = '}';
private static final int STATE_INITIAL = 0; //@01A4
private static final int STATE_SINGLE_QUOTE = 1;
private static final int STATE_LITERAL_BRACE = 2;
private static final int STATE_MSG_ELEMENT = 3;
public static String fixPattern(final String pattern) { //@01
final StringBuffer buf = new StringBuffer(pattern.length() * 2);
int state = STATE_INITIAL;
for (int i = 0, j = pattern.length(); i < j; ++i) {
final char c = pattern.charAt(i);
switch (state) {
case STATE_INITIAL :
switch (c) {
case SINGLE_QUOTE :
state = STATE_SINGLE_QUOTE;
break;
case CURLY_BRACE_LEFT :
state = STATE_MSG_ELEMENT;
break;
}
break;
case STATE_SINGLE_QUOTE :
switch (c) {
case SINGLE_QUOTE :
state = STATE_INITIAL;
break;
case CURLY_BRACE_LEFT :
case CURLY_BRACE_RIGHT :
state = STATE_LITERAL_BRACE;
break;
default :
buf.append(SINGLE_QUOTE);
state = STATE_INITIAL;
}
break;
case STATE_LITERAL_BRACE :
switch (c) {
case SINGLE_QUOTE :
state = STATE_INITIAL;
break;
}
break;
case STATE_MSG_ELEMENT :
switch (c) {
case CURLY_BRACE_RIGHT :
state = STATE_INITIAL;
break;
}
break;
default : // This will not happen.
}
buf.append(c);
}
// End of scan
if (state == STATE_SINGLE_QUOTE) {
buf.append(SINGLE_QUOTE);
}
return new String(buf);
}
}