ClojureBraceMatcher.java

package org.jetbrains.plugins.clojure.highlighter;

import com.intellij.lang.BracePair;
import com.intellij.lang.PairedBraceMatcher;
import com.intellij.psi.PsiFile;
import com.intellij.psi.tree.IElementType;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.plugins.clojure.lexer.ClojureTokenTypes;

/**
 * User: peter
 * Date: Nov 20, 2008
 * Time: 11:11:11 AM
 * Copyright 2007, 2008, 2009 Red Shark Technology
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.
 */
public class ClojureBraceMatcher implements PairedBraceMatcher {
  private static final BracePair[] PAIRS = new BracePair[]{
      new BracePair(ClojureTokenTypes.LEFT_PAREN, ClojureTokenTypes.RIGHT_PAREN, true),
      new BracePair(ClojureTokenTypes.LEFT_SQUARE, ClojureTokenTypes.RIGHT_SQUARE, true),
      new BracePair(ClojureTokenTypes.LEFT_CURLY, ClojureTokenTypes.RIGHT_CURLY, true),
  };

  public BracePair[] getPairs() {
    return PAIRS;
  }

  public boolean isPairedBracesAllowedBeforeType(@NotNull final IElementType lbraceType, @Nullable final IElementType tokenType) {
    return tokenType == null
        || ClojureTokenTypes.WHITESPACE_SET.contains(tokenType)
        || ClojureTokenTypes.COMMENTS.contains(tokenType)
        || tokenType == ClojureTokenTypes.COMMA
        || tokenType == ClojureTokenTypes.RIGHT_SQUARE
        || tokenType == ClojureTokenTypes.RIGHT_PAREN
        || tokenType == ClojureTokenTypes.RIGHT_CURLY;
  }

  public int getCodeConstructStart(PsiFile file, int openingBraceOffset) {
    return openingBraceOffset;
  }
}