LanguageNamesValidation.java

/*
 * Copyright 2000-2014 JetBrains s.r.o.
 *
 * 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.
 */

/*
 * @author max
 */
package com.intellij.lang;

import com.intellij.lang.refactoring.NamesValidator;
import com.intellij.openapi.project.Project;
import org.jetbrains.annotations.NotNull;

public class LanguageNamesValidation extends LanguageExtension<NamesValidator> {
  public static final LanguageNamesValidation INSTANCE = new LanguageNamesValidation();

  private LanguageNamesValidation() {
    super("com.intellij.lang.namesValidator", new DefaultNamesValidator());
  }

  protected static class DefaultNamesValidator implements NamesValidator {
    @Override
    public boolean isIdentifier(@NotNull final String name, final Project project) {
      final int len = name.length();
      if (len == 0) return false;

      if (!Character.isJavaIdentifierStart(name.charAt(0))) return false;

      for (int i = 1; i < len; i++) {
        if (!Character.isJavaIdentifierPart(name.charAt(i))) return false;
      }

      return true;
    }

    @Override
    public boolean isKeyword(@NotNull final String name, final Project project) {
      return false;
    }
  }
}