content: /*
   * Copyright (C) 2014 The Android Open Source Project
   *
   * 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.android.internal.alsa;
  
  /**
   * @hide
   * Breaks lines in an ALSA "cards" or "devices" file into tokens.
   * TODO(pmclean) Look into replacing this with String.split().
   */
  public class LineTokenizer {
      public static final int kTokenNotFound = -1;
  
      private final String mDelimiters;
  
      public LineTokenizer(String delimiters) {
          mDelimiters = delimiters;
      }
  
      int nextToken(String line, int startIndex) {
          int len = line.length();
          int offset = startIndex;
          for (; offset < len; offset++) {
              if (mDelimiters.indexOf(line.charAt(offset)) == -1) {
                  // past a delimiter
                  break;
              }
        }
  
        return offset < len ? offset : kTokenNotFound;
      }
  
      int nextDelimiter(String line, int startIndex) {
          int len = line.length();
          int offset = startIndex;
          for (; offset < len; offset++) {
              if (mDelimiters.indexOf(line.charAt(offset)) != -1) {
                  // past a delimiter
                  break;
              }
          }
  
        return offset < len ? offset : kTokenNotFound;
      }
  }
  