Split a String by a Character, i.e. Split lines by using '\n' : String « Date Type « Android






  1. Android
  2. Date Type
  3. String

Split a String by a Character, i.e. Split lines by using '\n'

    
//package org.anddev.andengine.util;

/**
 * (c) 2010 Nicolas Gramlich 
 * (c) 2011 Zynga Inc.
 * 
 * @author Nicolas Gramlich
 * @since 19:01:08 - 03.04.2010
 */
class StringUtils {


  /**
   * Split a String by a Character, i.e. Split lines by using '\n'.<br/>
   * Same behavior as <code>String.split("" + pCharacter);</code> .
   * 
   * @param pString
   * @param pCharacter
   * @return
   */
  public static String[] split(final String pString, final char pCharacter) {
    return StringUtils.split(pString, pCharacter, null);
  }

  /**
   * Split a String by a Character, i.e. Split lines by using '\n'.<br/>
   * Same behavior as <code>String.split("" + pCharacter);</code> .
   * 
   * @param pString
   * @param pCharacter
   * @param pReuse tries to reuse the String[] if the length is the same as the length needed.
   * @return
   */
  public static String[] split(final String pString, final char pCharacter, final String[] pReuse) {
    final int partCount = StringUtils.countOccurrences(pString, pCharacter) + 1;

    final boolean reuseable = pReuse != null && pReuse.length == partCount;
    final String[] out = (reuseable) ? pReuse : new String[partCount];

    if(partCount == 0) {
      out[0] = pString;
    } else {
      int from = 0;
      int to;

      for (int i = 0; i < partCount - 1; i++) {
        to = pString.indexOf(pCharacter, from);
        out[i] = pString.substring(from, to);
        from = to + 1;
      }

      out[partCount - 1] = pString.substring(from, pString.length());
    }

    return out;
  }

  public static int countOccurrences(final String pString, final char pCharacter) {
    int count = 0;

    int lastOccurrence = pString.indexOf(pCharacter, 0);

    while (lastOccurrence != -1) {
      count++;
      lastOccurrence = pString.indexOf(pCharacter, lastOccurrence + 1);
    }

    return count;
  }
}








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