C++ CStdString::replace方法代码示例

void CScraperParser::ReplaceBuffers(CStdString& strDest)
{
  // insert buffers
  int iIndex;
  for (int i=MAX_SCRAPER_BUFFERS-1; i>=0; i--)
  {
    CStdString temp;
    iIndex = 0;
    temp.Format("$$%i",i+1);
    while ((size_t)(iIndex = strDest.find(temp,iIndex)) != CStdString::npos) // COPIED FROM CStdString WITH THE ADDITION OF $ ESCAPING
    {
      strDest.replace(strDest.begin()+iIndex,strDest.begin()+iIndex+temp.GetLength(),m_param[i]);
      iIndex += m_param[i].length();
    }
  }
  // insert settings
  iIndex = 0;
  while ((size_t)(iIndex = strDest.find("$INFO[",iIndex)) != CStdString::npos)
  {
    int iEnd = strDest.Find("]",iIndex);
    CStdString strInfo = strDest.Mid(iIndex+6,iEnd-iIndex-6);
    CStdString strReplace;
    if (m_scraper)
      strReplace = m_scraper->GetSetting(strInfo);
    strDest.replace(strDest.begin()+iIndex,strDest.begin()+iEnd+1,strReplace);
    iIndex += strReplace.length();
  }
  iIndex = 0;
  while ((size_t)(iIndex = strDest.find("\\n",iIndex)) != CStdString::npos)
    strDest.replace(strDest.begin()+iIndex,strDest.begin()+iIndex+2,"\n");
}

void CScraperParser::ConvertJSON(CStdString &string)
{
  CRegExp reg;
  reg.RegComp("\\\\u([0-f]{4})");
  while (reg.RegFind(string.c_str()) > -1)
  {
    int pos = reg.GetSubStart(1);
    std::string szReplace(reg.GetMatch(1));

    CStdString replace = StringUtils::Format("&#x%s;", szReplace.c_str());
    string.replace(string.begin()+pos-2, string.begin()+pos+4, replace);
  }

  CRegExp reg2;
  reg2.RegComp("\\\\x([0-9]{2})([^\\\\]+;)");
  while (reg2.RegFind(string.c_str()) > -1)
  {
    int pos1 = reg2.GetSubStart(1);
    int pos2 = reg2.GetSubStart(2);
    std::string szHexValue(reg2.GetMatch(1));

    CStdString replace = StringUtils::Format("%c", strtol(szHexValue.c_str(), NULL, 16));
    string.replace(string.begin()+pos1-2, string.begin()+pos2+reg2.GetSubLength(2), replace);
  }

  StringUtils::Replace(string, "\\\"","\"");
}

void CScraperParser::ReplaceBuffers(CStdString& strDest)
{
  // insert buffers
  size_t iIndex;
  for (int i=MAX_SCRAPER_BUFFERS-1; i>=0; i--)
  {
    iIndex = 0;
    CStdString temp = StringUtils::Format("$$%i",i+1);
    while ((iIndex = strDest.find(temp,iIndex)) != CStdString::npos) // COPIED FROM CStdString WITH THE ADDITION OF $ ESCAPING
    {
      strDest.replace(strDest.begin()+iIndex,strDest.begin()+iIndex+temp.size(),m_param[i]);
      iIndex += m_param[i].length();
    }
  }
  // insert settings
  iIndex = 0;
  while ((iIndex = strDest.find("$INFO[", iIndex)) != CStdString::npos)
  {
    size_t iEnd = strDest.find("]", iIndex);
    CStdString strInfo = strDest.substr(iIndex+6, iEnd - iIndex - 6);
    CStdString strReplace;
    if (m_scraper)
      strReplace = m_scraper->GetSetting(strInfo);
    strDest.replace(strDest.begin()+iIndex,strDest.begin()+iEnd+1,strReplace);
    iIndex += strReplace.length();
  }
  // insert localize strings
  iIndex = 0;
  while ((iIndex = strDest.find("$LOCALIZE[", iIndex)) != CStdString::npos)
  {
    size_t iEnd = strDest.find("]", iIndex);
    CStdString strInfo = strDest.substr(iIndex+10, iEnd - iIndex - 10);
    CStdString strReplace;
    if (m_scraper)
      strReplace = m_scraper->GetString(strtol(strInfo.c_str(),NULL,10));
    strDest.replace(strDest.begin()+iIndex,strDest.begin()+iEnd+1,strReplace);
    iIndex += strReplace.length();
  }
  iIndex = 0;
  while ((iIndex = strDest.find("\\n",iIndex)) != CStdString::npos)
    strDest.replace(strDest.begin()+iIndex,strDest.begin()+iIndex+2,"\n");
}

bool DVDPlayerCodec::Init(const CStdString &strFile, unsigned int filecache)
{
  // take precaution if Init()ialized earlier
  if (m_bInited)
  {
    // keep things as is if Init() was done with known strFile
    if (m_strFileName == strFile)
      return true;

    // got differing filename, so cleanup before starting over
    DeInit();
  }

  m_decoded = NULL;
  m_nDecodedLen = 0;

  CStdString strFileToOpen = strFile;

  CURL urlFile(strFile);
  if (urlFile.GetProtocol() == "shout" )
    strFileToOpen.replace(0, 8, "http://");

  m_pInputStream = CDVDFactoryInputStream::CreateInputStream(NULL, strFileToOpen, m_strContentType);
  if (!m_pInputStream)
  {
    CLog::Log(LOGERROR, "%s: Error creating input stream for %s", __FUNCTION__, strFileToOpen.c_str());
    return false;
  }

  if (!m_pInputStream->Open(strFileToOpen.c_str(), m_strContentType))
  {
    CLog::Log(LOGERROR, "%s: Error opening file %s", __FUNCTION__, strFileToOpen.c_str());
    if (m_pInputStream)
      delete m_pInputStream;
    m_pInputStream = NULL;
    return false;
  }

  m_pDemuxer = NULL;

  try
  {
    m_pDemuxer = CDVDFactoryDemuxer::CreateDemuxer(m_pInputStream);
    if (!m_pDemuxer)
    {
      delete m_pInputStream;
      m_pInputStream = NULL;
      CLog::Log(LOGERROR, "%s: Error creating demuxer", __FUNCTION__);
      return false;
    }
  }
  catch(...)
  {
    CLog::Log(LOGERROR, "%s: Exception thrown when opening demuxer", __FUNCTION__);
    if (m_pDemuxer)
    {
      delete m_pDemuxer;
      m_pDemuxer = NULL;
    }
    delete m_pInputStream;
    m_pInputStream = NULL;
    return false;
  }

  CDemuxStream* pStream = NULL;
  m_nAudioStream = -1;
  for (int i = 0; i < m_pDemuxer->GetNrOfStreams(); i++)
  {
    pStream = m_pDemuxer->GetStream(i);
    if (pStream && pStream->type == STREAM_AUDIO)
    {
      m_nAudioStream = i;
      break;
    }
  }

  if (m_nAudioStream == -1)
  {
    CLog::Log(LOGERROR, "%s: Could not find audio stream", __FUNCTION__);
    delete m_pDemuxer;
    m_pDemuxer = NULL;
    delete m_pInputStream;
    m_pInputStream = NULL;
    return false;
  }

  CDVDStreamInfo hint(*pStream, true);

  m_pAudioCodec = CDVDFactoryCodec::CreateAudioCodec(hint);
  if (!m_pAudioCodec)
  {
    CLog::Log(LOGERROR, "%s: Could not create audio codec", __FUNCTION__);
    delete m_pDemuxer;
    m_pDemuxer = NULL;
    delete m_pInputStream;
    m_pInputStream = NULL;
    return false;
  }

  //  Extract ReplayGain info
//.........这里部分代码省略.........

void CScraperParser::Clean(CStdString& strDirty)
{
  size_t i = 0;
  CStdString strBuffer;
  while ((i = strDirty.find("!!!CLEAN!!!",i)) != std::string::npos)
  {
    size_t i2;
    if ((i2 = strDirty.find("!!!CLEAN!!!",i+11)) != std::string::npos)
    {
      strBuffer = strDirty.substr(i+11,i2-i-11);
      CStdString strConverted(strBuffer);
      HTML::CHTMLUtil::RemoveTags(strConverted);
      StringUtils::Trim(strConverted);
      strDirty.replace(i, i2-i+11, strConverted);
      i += strConverted.size();
    }
    else
      break;
  }
  i=0;
  while ((i = strDirty.find("!!!TRIM!!!",i)) != std::string::npos)
  {
    size_t i2;
    if ((i2 = strDirty.find("!!!TRIM!!!",i+10)) != std::string::npos)
    {
      strBuffer = strDirty.substr(i+10,i2-i-10);
      StringUtils::Trim(strBuffer);
      strDirty.replace(i, i2-i+10, strBuffer);
      i += strBuffer.size();
    }
    else
      break;
  }
  i=0;
  while ((i = strDirty.find("!!!FIXCHARS!!!",i)) != std::string::npos)
  {
    size_t i2;
    if ((i2 = strDirty.find("!!!FIXCHARS!!!",i+14)) != std::string::npos)
    {
      strBuffer = strDirty.substr(i+14,i2-i-14);
      CStdStringW wbuffer;
      g_charsetConverter.toW(strBuffer,wbuffer,GetSearchStringEncoding());
      CStdStringW wConverted;
      HTML::CHTMLUtil::ConvertHTMLToW(wbuffer,wConverted);
      g_charsetConverter.fromW(wConverted,strBuffer,GetSearchStringEncoding());
      StringUtils::Trim(strBuffer);
      ConvertJSON(strBuffer);
      strDirty.replace(i, i2-i+14, strBuffer);
      i += strBuffer.size();
    }
    else
      break;
  }
  i=0;
  while ((i=strDirty.find("!!!ENCODE!!!",i)) != std::string::npos)
  {
    size_t i2;
    if ((i2 = strDirty.find("!!!ENCODE!!!",i+12)) != std::string::npos)
    {
      strBuffer = CURL::Encode(strDirty.substr(i + 12, i2 - i - 12));
      strDirty.replace(i, i2-i+12, strBuffer);
      i += strBuffer.size();
    }
    else
      break;
  }
}

bool CPlayListPLS::Load(const CStdString &strFile)
{
  //read it from the file
  CStdString strFileName(strFile);
  m_strPlayListName = URIUtils::GetFileName(strFileName);

  Clear();

  bool bShoutCast = false;
  if( StringUtils::StartsWithNoCase(strFileName, "shout://") )
  {
    strFileName.replace(0, 8, "http://");
    m_strBasePath = "";
    bShoutCast = true;
  }
  else
    URIUtils::GetParentPath(strFileName, m_strBasePath);

  CFile file;
  if (!file.Open(strFileName) )
  {
    file.Close();
    return false;
  }

  if (file.GetLength() > 1024*1024)
  {
    CLog::Log(LOGWARNING, "%s - File is larger than 1 MB, most likely not a playlist",__FUNCTION__);
    return false;
  }

  char szLine[4096];
  CStdString strLine;

  // run through looking for the [playlist] marker.
  // if we find another http stream, then load it.
  while (1)
  {
    if ( !file.ReadString(szLine, sizeof(szLine) ) )
    {
      file.Close();
      return size() > 0;
    }
    strLine = szLine;
    StringUtils::Trim(strLine);
    if(strLine.Equals(START_PLAYLIST_MARKER))
      break;

    // if there is something else before playlist marker, this isn't a pls file
    if(!strLine.empty())
      return false;
  }

  bool bFailed = false;
  while (file.ReadString(szLine, sizeof(szLine) ) )
  {
    strLine = szLine;
    StringUtils::RemoveCRLF(strLine);
    size_t iPosEqual = strLine.find("=");
    if (iPosEqual != std::string::npos)
    {
      CStdString strLeft = strLine.substr(0, iPosEqual);
      iPosEqual++;
      CStdString strValue = strLine.substr(iPosEqual);
      StringUtils::ToLower(strLeft);
      StringUtils::TrimLeft(strLeft);

      if (strLeft == "numberofentries")
      {
        m_vecItems.reserve(atoi(strValue.c_str()));
      }
      else if (StringUtils::StartsWith(strLeft, "file"))
      {
        vector <int>::size_type idx = atoi(strLeft.c_str() + 4);
        if (!Resize(idx))
        {
          bFailed = true;
          break;
        }

        // Skip self - do not load playlist recursively
        if (URIUtils::GetFileName(strValue).Equals(URIUtils::GetFileName(strFileName)))
          continue;

        if (m_vecItems[idx - 1]->GetLabel().empty())
          m_vecItems[idx - 1]->SetLabel(URIUtils::GetFileName(strValue));
        CFileItem item(strValue, false);
        if (bShoutCast && !item.IsAudio())
          strValue.replace(0, 7, "shout://");

        strValue = URIUtils::SubstitutePath(strValue);
        CUtil::GetQualifiedFilename(m_strBasePath, strValue);
        g_charsetConverter.unknownToUTF8(strValue);
        m_vecItems[idx - 1]->SetPath(strValue);
      }
      else if (StringUtils::StartsWith(strLeft, "title"))
      {
        vector <int>::size_type idx = atoi(strLeft.c_str() + 5);
        if (!Resize(idx))
        {
//.........这里部分代码省略.........