BnfNamesValidator.java

/*
 * Copyright 2011-present Greg Shrago
 *
 * 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 org.intellij.grammar.refactor;

import com.intellij.lang.refactoring.NamesValidator;
import com.intellij.openapi.project.Project;
import org.intellij.grammar.parser.BnfLexer;
import org.intellij.grammar.psi.BnfTypes;
import org.jetbrains.annotations.NotNull;

/**
 * @author gregsh
 */
public class BnfNamesValidator implements NamesValidator {
  @Override
  public boolean isKeyword(@NotNull String s, Project project) {
    return false;
  }

  @Override
  public boolean isIdentifier(@NotNull String s, Project project) {
    BnfLexer lexer = new BnfLexer();
    lexer.start(s);
    return lexer.getTokenEnd() == s.length() && lexer.getTokenType() == BnfTypes.BNF_ID;
  }
}