当前位置: 首页>>代码示例>>C++>>正文

C++ string::Clear方法代码示例

本文整理汇总了C++中string::Clear方法的典型用法代码示例。如果您正苦于以下问题：C++ string::Clear方法的具体用法？C++ string::Clear怎么用？C++ string::Clear使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类string的用法示例。


在下文中一共展示了string::Clear方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: UnSerializeString

bool SearchTreeNode::UnSerializeString(const string& s,string& result)
{
    result.Clear();
    size_t i;
    int mode = 0;
    wxString entity(_T(""));
    unsigned int u;
    for(i = 0;mode >=0 && i<s.length();i++)
    {
        wxChar ch = s[i];
        if(ch==_T('"') || ch==_T('>') || ch==_T('<'))
        {
            mode = -1; // Error
            break;
        }
        switch(mode)
        {
            case 0: // normal
                if(ch==_T('&'))
                {
                    mode = 1;
                    entity.Clear();
                }
                else
                    result << ch;
            case 1: // escaped
                if(ch==_T('&'))
                {
                    mode = -1; // Error
                    break;
                }
                else if(ch==_T(';'))
                {
                    mode = 0;
                    if(entity==_T("quot"))
                        ch = _T('"');
                    else if(entity==_T("amp"))
                        ch = _T('&');
                    else if(entity==_T("apos"))
                        ch = _T('\'');
                    else if(entity==_T("lt"))
                        ch = _T('<');
                    else if(entity==_T("gt"))
                        ch = _T('>');
                    else if(entity[0]==_T('#') && s2u(entity.substr(1),u))
                        ch = u;
                    else
                    {
                        mode = -1; // Error: Unrecognized entity
                        break;
                    }
                    result << ch;
                }
            break;
        }
    }
    if(mode < 0)
        result.Clear();
    return (mode >= 0);
}
开发者ID:ohosrry，项目名称:visualfc，代码行数:60，代码来源:searchtree.cpp

示例2: Clear

	void Clear()
	{
		Flags=0;
		TopStr=0;
		CurX=CurY=0;
		strHelpMask.Clear();
		strHelpPath.Clear();
		strHelpTopic.Clear();
		strSelTopic.Clear();
	}
开发者ID:landswellsong，项目名称:FAR，代码行数:10，代码来源:help.hpp

示例3: Clear

	void Clear()
	{
		dwFileAttributes=0;
		ClearStruct(ftCreationTime);
		ClearStruct(ftLastAccessTime);
		ClearStruct(ftLastWriteTime);
		ClearStruct(ftChangeTime);
		nFileSize=0;
		nAllocationSize=0;
		dwReserved0=0;
		dwReserved1=0;
		FileId = 0;
		strFileName.Clear();
		strAlternateFileName.Clear();
	}
开发者ID:alexlav，项目名称:conemu，代码行数:15，代码来源:farwinapi.hpp

示例4: ReadLastItem

bool History::ReadLastItem(const wchar_t *RegKey, string &strStr)
{
	strStr.Clear();
	HKEY hKey=OpenRegKey(RegKey);

	if (!hKey)
		return false;

	DWORD Type;
	DWORD Size=0;

	if (RegQueryValueEx(hKey,L"Lines",0,&Type,nullptr,&Size)!=ERROR_SUCCESS || Size<sizeof(wchar_t)) // Нету ничерта
		return false;

	wchar_t *Buffer=(wchar_t*)xf_malloc(Size);

	if (!Buffer)
		return false;

	if (RegQueryValueEx(hKey,L"Lines",0,&Type,(unsigned char *)Buffer,&Size)!=ERROR_SUCCESS)
	{
		xf_free(Buffer);
		return false;
	}

	Buffer[Size/sizeof(wchar_t)-1]=0; //safety
	strStr = Buffer; //last item is first in registry, null terminated
	xf_free(Buffer);
	return true;
}
开发者ID:alexlav，项目名称:dotwindows，代码行数:30，代码来源:history.cpp

示例5: 

	HistoryRecord()
	{
		Lock = false;
		Type = 0;
		strName.Clear();
		Timestamp.dwLowDateTime=0;
		Timestamp.dwHighDateTime=0;
	}
开发者ID:alexlav，项目名称:conemu，代码行数:8，代码来源:history.hpp

示例6: Clear

	void Clear()
	{
		ClearStruct(*static_cast<FarDialogItem*>(this));

		ListPos=0;
		strHistory.Clear();
		strMask.Clear();
		strData.Clear();
		ID=0;
		IFlags.ClearAll();
		AutoCount=0;
		AutoPtr=nullptr;
		UserData=0;
		ObjPtr=nullptr;
		ListPtr=nullptr;
		UCData=nullptr;
		SelStart=0;
		SelEnd=0;
	}
开发者ID:alexlav，项目名称:conemu，代码行数:19，代码来源:dialog.hpp

示例7: GetNext

void History::GetNext(string &strStr)
{
	if (CurrentItem)
		CurrentItem=HistoryList.Next(CurrentItem);

	if (CurrentItem)
		strStr = CurrentItem->strName;
	else
		strStr.Clear();
}
开发者ID:alexlav，项目名称:dotwindows，代码行数:10，代码来源:history.cpp

示例8: GetPrev

void History::GetPrev(string &strStr)
{
	CurrentItem=HistoryList.Prev(CurrentItem);

	if (!CurrentItem)
		CurrentItem=HistoryList.First();

	if (CurrentItem)
		strStr = CurrentItem->strName;
	else
		strStr.Clear();
}
开发者ID:alexlav，项目名称:dotwindows，代码行数:12，代码来源:history.cpp

示例9: 

FolderTree::FolderTree(string &strResultFolder,int iModalMode,int IsStandalone,bool IsFullScreen):
	Tree(nullptr),
	FindEdit(nullptr),
	ModalMode(iModalMode),
	IsFullScreen(IsFullScreen),
	IsStandalone(IsStandalone),
	PrevMacroMode(CtrlObject->Macro.GetMode())
{
	SetDynamicallyBorn(FALSE);
	SetRestoreScreenMode(TRUE);
	if (ModalMode != MODALTREE_FREE)
		strResultFolder.Clear();
	KeyBarVisible = TRUE;  // Заставим обновлятся кейбар
	//TopScreen=new SaveScreen;
	SetCoords();

	if ((Tree=new TreeList(FALSE)))
	{
		CtrlObject->Macro.SetMode(MACRO_FINDFOLDER);
		MacroMode = MACRO_FINDFOLDER;
		strLastName.Clear();
		Tree->SetModalMode(ModalMode);
		Tree->SetPosition(X1,Y1,X2,Y2);

		if (ModalMode == MODALTREE_FREE)
			Tree->SetRootDir(strResultFolder);

		Tree->SetVisible(TRUE);
		Tree->Update(0);

		// если было прерывание в процессе сканирования и это было дерево копира...
		if (Tree->GetExitCode())
		{
			if (!(FindEdit=new Edit))
			{
				SetExitCode(XC_OPEN_ERROR);
				return;
			}

			FindEdit->SetEditBeyondEnd(FALSE);
			FindEdit->SetPersistentBlocks(Global->Opt->Dialogs.EditBlock);
			InitKeyBar();
			FrameManager->ExecuteModal(this); //OT
		}

		strResultFolder = strNewFolder;
	}
	else
	{
		SetExitCode(XC_OPEN_ERROR);
	}
}
开发者ID:CyberShadow，项目名称:FAR，代码行数:52，代码来源:foldtree.cpp

示例10: Clear

	void Clear()
	{
		Flags = 0;
		strName.Clear();
		AccelKey = 0;
		UserDataSize = 0;
		UserData = nullptr;
		AmpPos = 0;
		Len[0] = 0;
		Len[1] = 0;
		Idx2 = 0;
		ShowPos = 0;
	}
开发者ID:alexlav，项目名称:conemu，代码行数:13，代码来源:vmenu.hpp

示例11: GetFileOwner

bool GetFileOwner(const wchar_t *Computer,const wchar_t *Name, string &strOwner)
{
	bool Result=false;
	/*
	if(!Owner)
	{
		SIDCacheFlush();
		return TRUE;
	}
	*/
	strOwner.Clear();
	SECURITY_INFORMATION si=OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION;;
	DWORD LengthNeeded=0;
	NTPath strName(Name);
	PSECURITY_DESCRIPTOR sd=reinterpret_cast<PSECURITY_DESCRIPTOR>(sddata);

	if (GetFileSecurity(strName,si,sd,sizeof(sddata),&LengthNeeded) && LengthNeeded<=sizeof(sddata))
	{
		PSID pOwner;
		BOOL OwnerDefaulted;
		if (GetSecurityDescriptorOwner(sd,&pOwner,&OwnerDefaulted))
		{
			if (IsValidSid(pOwner))
			{
				const wchar_t *Owner=GetNameFromSIDCache(pOwner);
				if (!Owner)
				{
					Owner=AddSIDToCache(Computer,pOwner);
				}
				if (Owner)
				{
					strOwner=Owner;
					Result=true;
				}
			}
		}
	}
	return Result;
}
开发者ID:CyberShadow，项目名称:FAR，代码行数:39，代码来源:fileowner.cpp

示例12: _MakePath1

int _MakePath1(DWORD Key, string &strPathName, const wchar_t *Param2,int ShortNameAsIs)
{
	int RetCode=FALSE;
	int NeedRealName=FALSE;
	strPathName.Clear();

	switch (Key)
	{
		case KEY_CTRLALTBRACKET:       // Вставить сетевое (UNC) путь из левой панели
		case KEY_RCTRLRALTBRACKET:
		case KEY_CTRLRALTBRACKET:
		case KEY_RCTRLALTBRACKET:
		case KEY_CTRLALTBACKBRACKET:   // Вставить сетевое (UNC) путь из правой панели
		case KEY_RCTRLRALTBACKBRACKET:
		case KEY_CTRLRALTBACKBRACKET:
		case KEY_RCTRLALTBACKBRACKET:
		case KEY_ALTSHIFTBRACKET:      // Вставить сетевое (UNC) путь из активной панели
		case KEY_RALTSHIFTBRACKET:
		case KEY_ALTSHIFTBACKBRACKET:  // Вставить сетевое (UNC) путь из пассивной панели
		case KEY_RALTSHIFTBACKBRACKET:
			NeedRealName=TRUE;
		case KEY_CTRLBRACKET:          // Вставить путь из левой панели
		case KEY_RCTRLBRACKET:
		case KEY_CTRLBACKBRACKET:      // Вставить путь из правой панели
		case KEY_RCTRLBACKBRACKET:
		case KEY_CTRLSHIFTBRACKET:     // Вставить путь из активной панели
		case KEY_RCTRLSHIFTBRACKET:
		case KEY_CTRLSHIFTBACKBRACKET: // Вставить путь из пассивной панели
		case KEY_RCTRLSHIFTBACKBRACKET:
		case KEY_CTRLSHIFTNUMENTER:    // Текущий файл с пасс.панели
		case KEY_RCTRLSHIFTNUMENTER:
		case KEY_SHIFTNUMENTER:        // Текущий файл с актив.панели
		case KEY_CTRLSHIFTENTER:       // Текущий файл с пасс.панели
		case KEY_RCTRLSHIFTENTER:
		case KEY_SHIFTENTER:           // Текущий файл с актив.панели
		{
			Panel *SrcPanel=nullptr;
			FilePanels *Cp=CtrlObject->Cp();

			switch (Key)
			{
				case KEY_CTRLALTBRACKET:
				case KEY_RCTRLRALTBRACKET:
				case KEY_CTRLRALTBRACKET:
				case KEY_RCTRLALTBRACKET:
				case KEY_CTRLBRACKET:
				case KEY_RCTRLBRACKET:
					SrcPanel=Cp->LeftPanel;
					break;
				case KEY_CTRLALTBACKBRACKET:
				case KEY_RCTRLRALTBACKBRACKET:
				case KEY_CTRLRALTBACKBRACKET:
				case KEY_RCTRLALTBACKBRACKET:
				case KEY_CTRLBACKBRACKET:
				case KEY_RCTRLBACKBRACKET:
					SrcPanel=Cp->RightPanel;
					break;
				case KEY_SHIFTNUMENTER:
				case KEY_SHIFTENTER:
				case KEY_ALTSHIFTBRACKET:
				case KEY_RALTSHIFTBRACKET:
				case KEY_CTRLSHIFTBRACKET:
				case KEY_RCTRLSHIFTBRACKET:
					SrcPanel=Cp->ActivePanel;
					break;
				case KEY_CTRLSHIFTNUMENTER:
				case KEY_RCTRLSHIFTNUMENTER:
				case KEY_CTRLSHIFTENTER:
				case KEY_RCTRLSHIFTENTER:
				case KEY_ALTSHIFTBACKBRACKET:
				case KEY_RALTSHIFTBACKBRACKET:
				case KEY_CTRLSHIFTBACKBRACKET:
				case KEY_RCTRLSHIFTBACKBRACKET:
					SrcPanel=Cp->GetAnotherPanel(Cp->ActivePanel);
					break;
			}

			if (SrcPanel)
			{
				if (Key == KEY_SHIFTENTER || Key == KEY_CTRLSHIFTENTER || Key == KEY_RCTRLSHIFTENTER || Key == KEY_SHIFTNUMENTER || Key == KEY_CTRLSHIFTNUMENTER || Key == KEY_RCTRLSHIFTNUMENTER)
				{
					string strShortFileName;
					SrcPanel->GetCurName(strPathName,strShortFileName);

					if (SrcPanel->GetShowShortNamesMode()) // учтем короткость имен :-)
						strPathName = strShortFileName;
				}
				else
				{
					/* TODO: Здесь нужно учесть, что у TreeList тоже есть путь :-) */
					if (!(SrcPanel->GetType()==FILE_PANEL || SrcPanel->GetType()==TREE_PANEL))
						return FALSE;

					SrcPanel->GetCurDir(strPathName);

					if (SrcPanel->GetMode()!=PLUGIN_PANEL)
					{
						FileList *SrcFilePanel=(FileList *)SrcPanel;
						SrcFilePanel->GetCurDir(strPathName);
						{
//.........这里部分代码省略.........
开发者ID:alexlav，项目名称:conemu，代码行数:101，代码来源:panelmix.cpp

示例13: GetTypeAndName

int FolderTree::GetTypeAndName(string &strType, string &strName)
{
	strType = MSG(MFolderTreeType);
	strName.Clear();
	return MODALTYPE_FINDFOLDER;
}
开发者ID:CyberShadow，项目名称:FAR，代码行数:6，代码来源:foldtree.cpp

示例14: Message


//.........这里部分代码省略.........
		ItemsNumber++;
	}

	for (size_t J=0; J < ItemsNumber-(EmptyText?1:0); ++J, ++I)
	{
		Str[I]=Items[J];
	}

	for (size_t i = 0; i < ItemsNumber-Buttons; ++i)
	{
		strClipText.Append(Items[i]).Append(L"\r\n");
	}
	strClipText.Append(L"\r\n");
	for (size_t i = ItemsNumber-Buttons; i < ItemsNumber; ++i)
	{
		if(i > ItemsNumber-Buttons)
		{
			strClipText.Append(L' ');
		}
		strClipText.Append(Items[i]);
	}

	StrCount+=CountErrorLine;
	MessageX1=X1=(int(ScrX-MaxLength))/2-4;
	MessageX2=X2=X1+MaxLength+9;
	Y1=(ScrY-static_cast<int>(StrCount))/2-2;

	if (Y1 < 0)
		Y1=0;

	MessageY1=Y1;
	MessageY2=Y2=Y1+StrCount+3;
	string strHelpTopic(strMsgHelpTopic);
	strMsgHelpTopic.Clear();
	// *** ¬ариант с ƒиалогом ***

	if (Buttons>0)
	{
		size_t ItemCount=StrCount+Buttons+1;
		DialogItemEx *PtrMsgDlg;
		DialogItemEx *MsgDlg = new DialogItemEx[ItemCount+1];

		if (!MsgDlg)
		{
			xf_free(Str);
			return -1;
		}

		for (DWORD i=0; i<ItemCount+1; i++)
			MsgDlg[i].Clear();

		int RetCode;
		MessageY2=++Y2;
		MsgDlg[0].Type=DI_DOUBLEBOX;
		MsgDlg[0].X1=3;
		MsgDlg[0].Y1=1;
		MsgDlg[0].X2=X2-X1-3;
		MsgDlg[0].Y2=Y2-Y1-1;

		if (Title && *Title)
			MsgDlg[0].strData = Title;

		FARDIALOGITEMTYPES TypeItem=DI_TEXT;
		unsigned __int64 FlagsItem=DIF_SHOWAMPERSAND;
		BOOL IsButton=FALSE;
		int CurItem=0;
开发者ID:alexlav，项目名称:conemu，代码行数:67，代码来源:message.cpp

示例15: FarFormatText

string& WINAPI FarFormatText(const wchar_t *SrcText,     // источник
                             int Width,               // заданная ширина
                             string &strDestText,          // приемник
                             const wchar_t* Break,       // брик, если = nullptr, то принимается '\n'
                             DWORD Flags)             // один из FFTM_*
{
	const wchar_t *breakchar;
	breakchar = Break?Break:L"\n";

	if (!SrcText || !*SrcText)
	{
		strDestText.Clear();
		return strDestText;
	}

	string strSrc = SrcText; //copy string in case of SrcText == strDestText

	if (!wcspbrk(strSrc,breakchar) && strSrc.GetLength() <= static_cast<size_t>(Width))
	{
		strDestText = strSrc;
		return strDestText;
	}

	long i=0, l=0, pgr=0, last=0;
	wchar_t *newtext;
	const wchar_t *text= strSrc;
	long linelength = Width;
	int breakcharlen = StrLength(breakchar);
	int docut = Flags&FFTM_BREAKLONGWORD?1:0;
	/* Special case for a single-character break as it needs no
	   additional storage space */

	if (breakcharlen == 1 && !docut)
	{
		newtext = xf_wcsdup(text);

		if (!newtext)
		{
			strDestText.Clear();
			return strDestText;
		}

		while (newtext[i] != L'\0')
		{
			/* prescan line to see if it is greater than linelength */
			l = 0;

			while (newtext[i+l] != breakchar[0])
			{
				if (newtext[i+l] == L'\0')
				{
					l--;
					break;
				}

				l++;
			}

			if (l >= linelength)
			{
				pgr = l;
				l = linelength;

				/* needs breaking; work backwards to find previous word */
				while (l >= 0)
				{
					if (newtext[i+l] == L' ')
					{
						newtext[i+l] = breakchar[0];
						break;
					}

					l--;
				}

				if (l == -1)
				{
					/* couldn't break is backwards, try looking forwards */
					l = linelength;

					while (l <= pgr)
					{
						if (newtext[i+l] == L' ')
						{
							newtext[i+l] = breakchar[0];
							break;
						}

						l++;
					}
				}
			}

			i += l+1;
		}
	}
	else
	{
		/* Multiple character line break */
		newtext = (wchar_t*)xf_malloc((strSrc.GetLength() * (breakcharlen+1)+1)*sizeof(wchar_t));
//.........这里部分代码省略.........
开发者ID:alexlav，项目名称:conemu，代码行数:101，代码来源:strmix.cpp


注：本文中的string::Clear方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。