com.squarespace.compiler.common.Converters Maven / Gradle / Ivy

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/**
 * Copyright (c) 2017 Squarespace, Inc.
 *
 * 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.squarespace.compiler.common;

public class Converters {

  /**
   * Quick string to integer conversion.
   */
  public static int toInteger(CharSequence seq) {
    int len = seq.length();
    int n = 0;
    int i = 0;
    while (i < len) {
      char c = seq.charAt(i);
      if (c >= '0' && c <= '9') {
        n *= 10;
        n += (int)(c - '0');
      } else {
        break;
      }
      i++;
    }
    return n;
  }

}