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A packaging of the IntelliJ Community Edition rest library. This is release number 1 of trunk branch 142.

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/*
 * Copyright 2000-2013 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.
 */
package com.jetbrains.rest.psi;

import com.intellij.lang.ASTNode;
import com.jetbrains.rest.validation.RestElementVisitor;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.text.CharacterIterator;
import java.text.StringCharacterIterator;

/**
 * User : catherine
 */
public class RestTitle extends RestElement {
  public RestTitle(@NotNull final ASTNode node) {
    super(node);
  }

  @Override
  public String toString() {
    return "RestTitle:" + getNode().getElementType().toString();
  }

  @Nullable
  public String getName() {
    final String text = getNode().getText().trim();
    if (text.length() < 2) return null;
    final char adorn = text.charAt(text.length()-2);
    final CharacterIterator it = new StringCharacterIterator(text);
    int finish = 0;
    for (char ch = it.last(); ch != CharacterIterator.DONE; ch = it.previous()) {
      if (ch != adorn) {
        finish = it.getIndex();
        break;
      }
    }
    int start = 0;
    if (text.charAt(0) == adorn) {
      for (char ch = it.first(); ch != CharacterIterator.DONE; ch = it.next()) {
        if (ch != adorn) {
          start = it.getIndex() + 1;
          break;
        }
      }
    }
    if (finish <= 0 || start < 0)
      return null;
    return text.substring(start, finish).trim();
  }

  @Nullable
  public String getUnderline() {
    final String text = getNode().getText().trim();
    if (text.length() < 2) return null;
    final char adorn = text.charAt(text.length()-2);
    final CharacterIterator it = new StringCharacterIterator(text);
    int start = 0;
    for (char ch = it.last(); ch != CharacterIterator.DONE; ch = it.previous()) {
      if (ch != adorn) {
        start = it.getIndex() + 1;
        break;
      }
    }
    return text.substring(start, text.length());
  }

  @Override
  protected void acceptRestVisitor(RestElementVisitor visitor) {
    visitor.visitTitle(this);
  }
}