char_stack.cpp

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 

#include "char_stack.h"
#include "hlxclib/string.h"

const char* CharStack::StrSep(const char* str, const char* sep)
{
  while (*str && strchr(sep, *str)) str++;
  
  Reset();

  while (*str && strchr(sep, *str) == 0)
  {
      if (m_pCur - m_pBuf >= m_Len)
	  NewBuf();

      *m_pCur= *str++;

      ++m_pCur;
  }
  while (*str && strchr(sep, *str)) str++;
  
  Finish();
  
  return str;
}

char* CharStack::NewBuf()
{
    int new_len = 32;
    int offset = m_pCur - m_pBuf;
    while (new_len <= offset)
	new_len <<= 1;

    char* new_buf = new char[new_len];
    if (m_pBuf && offset > 0)
	::memcpy(new_buf, m_pBuf, offset); /* Flawfinder: ignore */
    delete [] m_pBuf;
    m_pCur = new_buf + offset;
    m_pBuf = new_buf;
    m_Len = new_len;

    return m_pCur;
}