io.pipelite.expression.core.el.Braket Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of pipelite-expression Show documentation
Show all versions of pipelite-expression Show documentation
Pipelite, a lightweight Java EAI framework
The newest version!
/*
* Copyright (C) 2023-2024 the original author or authors.
*
* 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
*
* https://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 io.pipelite.expression.core.el;
import java.util.Optional;
public enum Braket {
OPEN_ROUND('(', true), OPEN_SQUARE('[', true), OPEN_CURLY('{', true), CLOSED_ROUND(')', false), CLOSED_SQUARE(']',
false), CLOSED_CURLY('}', false);
private final char symbol;
private final boolean open;
private Braket(char symbol, boolean open) {
this.symbol = symbol;
this.open = open;
}
public char getSymbol() {
return this.symbol;
}
public boolean sameSymbol(char symbol) {
return this.symbol == symbol;
}
public boolean isOpen() {
return open;
}
public static Optional tryFind(char symbol) {
for (Braket braket : values()) {
if (braket.sameSymbol(symbol)) {
return Optional.of(braket);
}
}
return Optional.empty();
}
public static boolean isBraket(char symbol) {
return tryFind(symbol).isPresent();
}
public static boolean isOpenBraket(char symbol) {
Optional braketHolder = tryFind(symbol);
if (braketHolder.isPresent()) {
Braket braket = braketHolder.get();
return braket.isOpen();
}
return false;
// throw new IllegalArgumentException(String.format("Symbol %s is not a
// braket", symbol));
}
public static boolean isClosedBraket(char symbol) {
Optional braketHolder = tryFind(symbol);
if (braketHolder.isPresent()) {
Braket braket = braketHolder.get();
return !braket.isOpen();
}
return false;
}
}