原创多行Edit控件的命令解析

 2008-10-20 23:52  3922 3 7 分类: 软件与OS

在VC中它的CString比起Delphi的String功能还是差多了～～

不过还能凑合用～～～真不如自己来构造个String类方便～～～

void CAddressAssistDlg::OnManualRun()
{
// TODO: Add your control notification handler code here
int i,j;
int nLineCnt;    //总行数
int nLineLength; //每行字符个数
int status = 0;
int cnt = 0;
int cmd = 0;
BYTE wd = 0;
WORD addr = 0;
DWORD data = 0;
CString strText,str, sstr;
unsigned char ch,tmp;
nLineCnt = m_SendArea.GetLineCount();//得到Edit控件内字符的行数
for(i=0; i<nLineCnt; i++)
{
  nLineLength = m_SendArea.LineLength(m_SendArea.LineIndex(i));
  m_SendArea.GetLine(i,strText.GetBuffer(nLineLength),nLineLength);
  strText.ReleaseBuffer(nLineLength);//在用GetBuffer申请内存空间后，立即调用ReleaseBuffer
  strText.TrimRight(' ');//去除右端空格
  strText += ';';//附加结尾符
  for(j=0; j<strText.GetLength(); j++)//对某行内的字符进行命令行解码
  {
   ch = strText.GetAt(j);//取出strText[j]的内容
   switch(ch)
   {
   case 'i':
   case 'I'://GetPort命令
    if(status == 0)
    {
     status = 1;
     cnt = 0;
     cmd = 1;
     wd = 0;
     addr = 0;
     data = 0;
    }
    break;

   case 'o':
   case 'O'://SetPort命令
    if(status == 0)
    {
     status = 1;
     cnt = 0;
     cmd = 2;
     wd = 0;
     addr = 0;
     data = 0;
    }
    break;
   case 't':
   case 'T'://Delay命令
    if(status == 0)
    {
     status = 1;
     cnt = 0;
     cmd = 3;
     addr = 0;
     data = 0;
    }
    break;

   case 'w':
   case 'W'://Word命令
    if((status == 3 && cmd == 1) || (status == 4 && cmd == 2))
    {
     wd = 1;
    }
    else
    {
     MessageBox("非法字符!!!");
        status = 0;
    }
    break;
   case ' '://间隔符
    if(status > 0)
    {
     if(cnt != 1)
     {
          if(cmd==3) status = 3;
       else status++;
       cnt = 1;
     }
    }
    break;
   case ';'://结尾符,执行命令
    switch(cmd)
    {
    case 1://GetPort
     if ((status == 2 && wd == 0) || (status == 3 && wd == 1))
     {
      GetPortVal(addr, &data, wd + 1);//读出端口数据
      if (wd == 0)
      {
       str.Format("端口[%04x]=%02x\r\n", addr, BYTE(data));
      }
      else
      {
       str.Format("端口[%04x]=%04x\r\n", addr, WORD(data));
      }
      m_RecvArea.GetWindowText(sstr);
      m_RecvArea.SetWindowText(sstr + str);
     }
     break;
    case 2://SetPort
     if ((status == 3 && wd == 0) || (status == 4 && wd == 1))
     {
         SetPortVal(addr, data, wd + 1);//写入端口数据
     }
     break;
    case 3://Delay
     Delay(data);
     break;
    }
    status = 0;//本行命令结束
    break;
   default://数字分析
    if(ch >='0' && ch <='9')
    {
     tmp = ch-'0';
    }
    else if(ch >='a' && ch <='f')
    {
     tmp = ch-'a'+10;
    }
    else if(ch >='A' && ch <='F')
    {
     tmp = ch-'A'+10;
    }
    else
    {
     MessageBox("非法字符!!!");
     status = 0;
    }
    switch(status)
    {
    case 1://command
     status = 0;
     MessageBox("命令符后应该跟空格!!!");
     break;
    case 2://addr
     addr <<= 4;
     addr += tmp;
     cnt ++;
     break;
    case 3://data
     if (cmd != 3)
     {
      data <<= 4;
      data |= tmp;
     }
     else if(tmp < 10)
     {
      data *= 10;
      data += tmp;
     }
     else
     {
      MessageBox("T参数只能是10进制uS数!!!");
     }
     cnt ++;
     break;
    }