C++ StripSpaces函数代码示例

// Ugh, this is ugly.
static bool ParseLine(const std::string& line, std::string* keyOut, std::string* valueOut, std::string* commentOut)
{
	int FirstEquals = (int)line.find("=", 0);
	int FirstCommentChar = -1;

	// Comments
	if (FirstCommentChar < 0)
		FirstCommentChar =
			(int)line.find("#", FirstEquals > 0 ? FirstEquals : 0);
	if (FirstCommentChar < 0 && line[0] == ';')
		FirstCommentChar = 0;

	// Allow preservation of spacing before comment
	while (FirstCommentChar > 0 && line[FirstCommentChar - 1] <= ' ')
	{
		FirstCommentChar--;
	}

	if ((FirstEquals >= 0) && ((FirstCommentChar < 0) || (FirstEquals < FirstCommentChar)))
	{
		// Yes, a valid key/value line!
		*keyOut = StripSpaces(line.substr(0, FirstEquals));
		if (commentOut) *commentOut = FirstCommentChar > 0 ? line.substr(FirstCommentChar) : std::string("");
		if (valueOut) *valueOut = StripQuotes(StripSpaces(line.substr(FirstEquals + 1, FirstCommentChar - FirstEquals - 1)));
		return true;
	}
	return false;
}

// Return a list of all lines in a section
bool IniFile::GetLines(const char* sectionName, std::vector<std::string>& lines, const bool remove_comments) const
{
	const Section* section = GetSection(sectionName);
	if (!section)
		return false;

	lines.clear();
	for (std::vector<std::string>::const_iterator iter = section->lines.begin(); iter != section->lines.end(); ++iter)
	{
		std::string line = StripSpaces(*iter);

		if (remove_comments)
		{
			int commentPos = (int)line.find('#');
			if (commentPos == 0)
			{
				continue;
			}

			if (commentPos != (int)std::string::npos)
			{
				line = StripSpaces(line.substr(0, commentPos));
			}
		}

		lines.push_back(line);
	}

	return true;
}

static void
ParseLine(char *line,char *var, char *data)
/*
** This routine divides the line into two parts.  The variable, and
** the 'string'.  If the line is a comment, the 'data' variable will
** contain the line and 'var' will be empty.
*/
{char *str;
StripSpaces(line);
*data='\0';
*var='\0';

if ((line[0]==';') || (line[0]=='%') || (line[0]=='#'))
  {
   strcpy(data,line);
   return;
  }
strcpy(var,line);

str=strpbrk(var," =\t");
if (str!=NULL)
  {
   strcpy(data,str);
   *str='\0';
   if ((*data==' ') || (*data=='\t')) StripSpaces(data);
   if (*data=='=') {*data=' ';StripSpaces(data);}
  }
}

// Return a list of all lines in a section
bool IniFile::GetLines(const std::string& sectionName, std::vector<std::string>* lines, const bool remove_comments) const
{
	const Section* section = GetSection(sectionName);
	if (!section)
		return false;

	lines->clear();
	for (std::string line : section->lines)
	{
		line = StripSpaces(line);

		if (remove_comments)
		{
			size_t commentPos = line.find('#');
			if (commentPos == 0)
			{
				continue;
			}

			if (commentPos != std::string::npos)
			{
				line = StripSpaces(line.substr(0, commentPos));
			}
		}

		lines->push_back(line);
	}

	return true;
}

bool IniFile::Section::GetLines(std::vector<std::string>* lines, const bool remove_comments) const
{
  for (const std::string& line : m_lines)
  {
    std::string stripped_line = StripSpaces(line);

    if (remove_comments)
    {
      size_t commentPos = stripped_line.find('#');
      if (commentPos == 0)
      {
        continue;
      }

      if (commentPos != std::string::npos)
      {
        stripped_line = StripSpaces(stripped_line.substr(0, commentPos));
      }
    }

    lines->push_back(std::move(stripped_line));
  }

  return true;
}

void DOS_Shell::CMD_CHOICE(char * args){
	HELP("CHOICE");
	static char defchoice[3] = {'y','n',0};
	char *rem = NULL, *ptr;
	bool optN = ScanCMDBool(args,"N");
	bool optS = ScanCMDBool(args,"S"); //Case-sensitive matching
	ScanCMDBool(args,"T"); //Default Choice after timeout
	if (args) {
		char *last = strchr(args,0);
		StripSpaces(args);
		rem = ScanCMDRemain(args);
		if (rem && *rem && (tolower(rem[1]) != 'c')) {
			WriteOut(MSG_Get("SHELL_ILLEGAL_SWITCH"),rem);
			return;
		}
		if (args == rem) args = strchr(rem,0)+1;
		if (rem) rem += 2;
		if(rem && rem[0]==':') rem++; /* optional : after /c */
		if (args > last) args = NULL;
	}
	if (!rem || !*rem) rem = defchoice; /* No choices specified use YN */
	ptr = rem;
	Bit8u c;
	if(!optS) while ((c = *ptr)) *ptr++ = (char)toupper(c); /* When in no case-sensitive mode. make everything upcase */
	if(args && *args ) {
		StripSpaces(args);
		size_t argslen = strlen(args);
		if(argslen>1 && args[0] == '"' && args[argslen-1] =='"') {
			args[argslen-1] = 0; //Remove quotes
			args++;
		}
		WriteOut(args);
	}
	/* Show question prompt of the form [a,b]? where a b are the choice values */
	if (!optN) {
		if(args && *args) WriteOut(" ");
		WriteOut("[");
		size_t len = strlen(rem);
		for(size_t t = 1; t < len; t++) {
			WriteOut("%c,",rem[t-1]);
		}
		WriteOut("%c]?",rem[len-1]);
	}

	Bit16u n=1;
	do {
		DOS_ReadFile (STDIN,&c,&n);
	} while (!c || !(ptr = strchr(rem,(optS?c:toupper(c)))));
	c = optS?c:(Bit8u)toupper(c);
	DOS_WriteFile (STDOUT,&c, &n);
	dos.return_code = (Bit8u)(ptr-rem+1);
}

void DOS_Shell::CMD_ECHO(char * args){
	if (!*args) {
		if (echo) { WriteOut(MSG_Get("SHELL_CMD_ECHO_ON"));}
		else { WriteOut(MSG_Get("SHELL_CMD_ECHO_OFF"));}
		return;
	}
	char buffer[512];
	char* pbuffer = buffer;
	safe_strncpy(buffer,args,512);
	StripSpaces(pbuffer);
	if (strcasecmp(pbuffer,"OFF")==0) {
		echo=false;		
		return;
	}
	if (strcasecmp(pbuffer,"ON")==0) {
		echo=true;		
		return;
	}
	if(strcasecmp(pbuffer,"/?")==0) { HELP("ECHO"); }

	args++;//skip first character. either a slash or dot or space
	size_t len = strlen(args); //TODO check input of else ook nodig is.
	if(len && args[len - 1] == '\r') {
		LOG(LOG_MISC,LOG_WARN)("Hu ? carriage return already present. Is this possible?");
		WriteOut("%s\n",args);
	} else WriteOut("%s\r\n",args);
}

bool IniFile::Section::Get(const char* key, std::vector<std::string>& values) 
{
	std::string temp;
	bool retval = Get(key, &temp, 0);
	if (!retval || temp.empty())
	{
		return false;
	}
	// ignore starting , if any
	size_t subStart = temp.find_first_not_of(",");
	size_t subEnd;

	// split by , 
	while (subStart != std::string::npos) {
		
		// Find next , 
		subEnd = temp.find_first_of(",", subStart);
		if (subStart != subEnd) 
			// take from first char until next , 
			values.push_back(StripSpaces(temp.substr(subStart, subEnd - subStart)));
	
		// Find the next non , char
		subStart = temp.find_first_not_of(",", subEnd);
	} 
	
	return true;
}

  bool Toolbox::IsInteger(const std::string& str)
  {
    std::string s = StripSpaces(str);

    if (s.size() == 0)
    {
      return false;
    }

    size_t pos = 0;
    if (s[0] == '-')
    {
      if (s.size() == 1)
      {
        return false;
      }

      pos = 1;
    }

    while (pos < s.size())
    {
      if (!isdigit(s[pos]))
      {
        return false;
      }

      pos++;
    }

    return true;
  }

void SimpleParametersCategory(int num_measures, char *llog, statistics stats, FILE **fOut)
{
	int i, j;
	char lkk1[LONGSTRINGSIZE], lkk2[LONGSTRINGSIZE], lkk3[LONGSTRINGSIZE];

	llog[0]=58; /* ':' */
	j=1;
	for (i = 1; i <= (num_measures); i=i+2) {
		ReadSubKey(lkk1, llog, &j, ':', ':', 0);
		StripSpaces(lkk1);
		ReadSubKey(lkk2, llog, &j, ':', ':', 0);
		StripSpaces(lkk2);
		sprintf(lkk3, "%s:#%s#:%s:%E:%E:LIN_DOUBLE:OPT", lkk1, lkk1, lkk2, stats.min[i], stats.max[i]);
		fprintf(*fOut, "%s\n", lkk3);
	}
}

bool IniFile::Section::Get(const std::string& key, std::vector<std::string>* out) const
{
  std::string temp;
  bool retval = Get(key, &temp);
  if (!retval || temp.empty())
  {
    return false;
  }

  // ignore starting comma, if any
  size_t subStart = temp.find_first_not_of(",");

  // split by comma
  while (subStart != std::string::npos)
  {
    // Find next comma
    size_t subEnd = temp.find(',', subStart);
    if (subStart != subEnd)
    {
      // take from first char until next comma
      out->push_back(StripSpaces(temp.substr(subStart, subEnd - subStart)));
    }

    // Find the next non-comma char
    subStart = temp.find_first_not_of(",", subEnd);
  }

  return true;
}

void IniFile::ParseLine(const std::string& line, std::string* keyOut, std::string* valueOut)
{
	if (line[0] == '#')
		return;

	size_t firstEquals = line.find("=", 0);

	if (firstEquals != std::string::npos)
	{
		// Yes, a valid line!
		*keyOut = StripSpaces(line.substr(0, firstEquals));

		if (valueOut)
		{
			*valueOut = StripQuotes(StripSpaces(line.substr(firstEquals + 1, std::string::npos)));
		}
	}
}

//===============================================================================================
// FUNCTION: GetRemaining
// PURPOSE:  Return the remaining text.
//
LPSTR CTextLineParser::GetRemaining()
{
   MEMBERASSERT();
   if (!m_pszNext || !m_pszNext[0])
      return NULL;
   if (m_cSeperator != ' ')
      return StripSpaces(m_pszNext);
   return m_pszNext;
}

void USBDeviceAddToWhitelistDialog::AddUSBDeviceToWhitelist()
{
  const std::string vid_string = StripSpaces(device_vid_textbox->text().toStdString());
  const std::string pid_string = StripSpaces(device_pid_textbox->text().toStdString());
  if (!IsValidUSBIDString(vid_string))
  {
    // i18n: Here, VID means Vendor ID (for a USB device).
    ModalMessageBox vid_warning_box(this);
    vid_warning_box.setIcon(QMessageBox::Warning);
    vid_warning_box.setWindowTitle(tr("USB Whitelist Error"));
    // i18n: Here, VID means Vendor ID (for a USB device).
    vid_warning_box.setText(tr("The entered VID is invalid."));
    vid_warning_box.setStandardButtons(QMessageBox::Ok);
    vid_warning_box.exec();
    return;
  }
  if (!IsValidUSBIDString(pid_string))
  {
    // i18n: Here, PID means Product ID (for a USB device).
    ModalMessageBox pid_warning_box(this);
    pid_warning_box.setIcon(QMessageBox::Warning);
    pid_warning_box.setWindowTitle(tr("USB Whitelist Error"));
    // i18n: Here, PID means Product ID (for a USB device).
    pid_warning_box.setText(tr("The entered PID is invalid."));
    pid_warning_box.setStandardButtons(QMessageBox::Ok);
    pid_warning_box.exec();
    return;
  }

  const u16 vid = static_cast<u16>(std::stoul(vid_string, nullptr, 16));
  const u16 pid = static_cast<u16>(std::stoul(pid_string, nullptr, 16));

  if (SConfig::GetInstance().IsUSBDeviceWhitelisted({vid, pid}))
  {
    ModalMessageBox::critical(this, tr("Error"), tr("This USB device is already whitelisted."));
    return;
  }
  SConfig::GetInstance().m_usb_passthrough_devices.emplace(vid, pid);
  SConfig::GetInstance().SaveSettings();
  accept();
}

std::string evdevDevice::Button::GetName() const
{
  // Buttons below 0x100 are mostly keyboard keys, and the names make sense
  if (m_code < 0x100)
  {
    const char* name = libevdev_event_code_get_name(EV_KEY, m_code);
    if (name)
      return StripSpaces(name);
  }
  // But controllers use codes above 0x100, and the standard label often doesn't match.
  // We are better off with Button 0 and so on.
  return "Button " + std::to_string(m_index);
}