C++ VStr类代码示例

Str Join(double** str, int len1, int len2) {
  VStr tmp;
  for (int i = 0; i < len1; i++) {
    tmp.push_back(Join(str[i], len2));
  }
  return Join(tmp, "\n");
}

VStr StrSplit(string theString, char dlim){
	istringstream iss(theString);
	VStr result;
	string tmp;
	while(!iss.eof() ){
		getline(iss , tmp, dlim );
		result.push_back(tmp);
	}
	return result;
}

VStr * newVStrFromFile(fstream &infile){
	VStr *allLine = new VStr;

	while(! infile.eof() ){
		string tmp;
		getline(infile,tmp,'\n');
		allLine->push_back(tmp);
	}
//	infile.close();
	return allLine;
}

void Info_RemoveKey(VStr& s, const VStr& key)
{
    guard(Info_RemoveKey);
    if (s.IsEmpty())
    {
        return;
    }
    if (s.Length() >= MAX_INFO_STRING)
    {
        Host_Error("Info_RemoveKey: oversize infostring");
    }

    if (strchr(*key, '\\'))
    {
        GCon->Log("Can't use a key with a \\");
        return;
    }

    int i = 0;
    while (1)
    {
        int start = i;
        if (s[i] == '\\')
            i++;
        int KeyStart = i;
        while (s[i] != '\\')
        {
            if (!s[i])
                return;
            i++;
        }
        VStr pkey(s, KeyStart, i - KeyStart);
        i++;

        int ValStart = i;
        while (s[i] != '\\' && s[i])
        {
            i++;
        }
        VStr value(s, ValStart, i - ValStart);

        if (!key.Cmp(pkey))
        {
            s = VStr(s, 0, start) + VStr(s, i, s.Length() - i);	// remove this part
            return;
        }

        if (!s[i])
            return;
    }
    unguard;
}

void VValueBag::DumpXMLIndentation(VString& ioDump, sLONG inIndentLevel)
{
	sLONG level = Min<sLONG>(100L, inIndentLevel);

	VStr<100>	indent;
	UniChar* ptr = indent.GetCPointerForWrite();
//	ptr[0] = 13;
	for (sLONG i = 0 ; i < level ; ++i)
		ptr[i] = CHAR_CONTROL_0009;	// tab
	indent.Validate(level);

	ioDump += indent;
}

void Info_SetValueForKey(VStr& s, const VStr& key, const VStr& value)
{
    guard(Info_SetValueForKey);
    if (s.Length() >= MAX_INFO_STRING)
    {
        Host_Error("Info_SetValueForKey: oversize infostring");
    }

    if (strchr(*key, '\\') || strchr(*value, '\\'))
    {
        GCon->Log("Can't use keys or values with a \\");
        return;
    }

    if (strchr(*key, '\"') || strchr(*value, '\"'))
    {
        GCon->Log("Can't use keys or values with a \"");
        return;
    }

    // this next line is kinda trippy
    VStr v = Info_ValueForKey(s, key);
    if (v.IsNotEmpty())
    {
        //	Key exists, make sure we have enough room for new value, if we
        // don't, don't change it!
        if (value.Length() - v.Length() + s.Length() > MAX_INFO_STRING)
        {
            GCon->Log("Info string length exceeded");
            return;
        }
    }

    Info_RemoveKey(s, key);
    if (value.IsEmpty())
        return;

    VStr newi = VStr("\\") + key + "\\" +  value;

    if (newi.Length() + s.Length() > MAX_INFO_STRING)
    {
        GCon->Log("Info string length exceeded");
        return;
    }

    s = s + newi;
    unguard;
}

static VStr FindMainWad(VStr MainWad)
{
	//	First check in IWAD directories.
	for (int i = 0; i < IWadDirs.Num(); i++)
	{
		if (Sys_FileExists(IWadDirs[i] + "/" + MainWad))
		{
			return IWadDirs[i] + "/" + MainWad;
		}
	}

	//	Then look in the save directory.
	if (fl_savedir.IsNotEmpty() && Sys_FileExists(fl_savedir + "/" + MainWad))
	{
		return fl_savedir + "/" + MainWad;
	}

	//	Finally in base directory.
	if (Sys_FileExists(fl_basedir + "/" + MainWad))
	{
		return fl_basedir + "/" + MainWad;
	}

	return VStr();
}

VCvar::VCvar(const char* AName, const VStr& ADefault, int AFlags)
: Name(AName)
, Flags(AFlags | CVAR_Delete)
{
	guard(VCvar::VCvar);
	char* Tmp = new char[ADefault.Length() + 1];
	VStr::Cpy(Tmp, *ADefault);
	DefaultString = Tmp;

	VCvar *prev = NULL;
	for (VCvar *var = Variables; var; var = var->Next)
	{
		if (VStr::ICmp(var->Name, Name) < 0)
		{
			prev = var;
		}
	}

	if (prev)
	{
		Next = prev->Next;
		prev->Next = this;
	}
	else
	{
		Next = Variables;
		Variables = this;
	}

	check(Initialised);
	Register();
	unguard;
}

void FL_CreatePath(const VStr& Path)
{
	guard(FL_CreatePath);
	VStr Temp = Path;
	for (size_t i = 3; i <= Temp.Length(); i++)
	{
		if (Temp[i] == '/' || Temp[i] == '\\' || Temp[i] == 0)
		{
			char Save = Temp[i];
			Temp[i] = 0;
			if (!Sys_DirExists(Temp))
				Sys_CreateDirectory(Temp);
			Temp[i] = Save;
		}
	}
	unguard;
}

// split string by dlim == '  ' (two space)
VStr StrSplitBy2Space(string str){
	string ttmp= str;
	VStr res;
	string ts("\n\n");
	for(int i = 0 ;i < ttmp.size()-1;i++ ){
		if (ttmp.c_str()[i] == ' ' && ttmp.c_str()[i+1] == ' ')
			ttmp.replace(i,2,ts);
	}
	istringstream iss(ttmp);
	while(!iss.eof() ){
		string tmp;
		getline(iss,tmp );
		if(tmp.size() == 0) continue;
		res.push_back(tmp);
	}
	return res;
}

VStream* FL_OpenFileWrite(const VStr& Name)
{
	guard(FL_OpenFileWrite);
	VStr TmpName;

	if (fl_savedir.IsNotEmpty())
		TmpName = fl_savedir + "/" + fl_gamedir + "/" + Name;
	else
		TmpName = fl_basedir + "/" + fl_gamedir + "/" + Name;
	FL_CreatePath(TmpName.ExtractFilePath());
	FILE *File = fopen(*TmpName, "wb");
	if (!File)
	{
		return NULL;
	}
	return new VStreamFileWriter(File, GCon);
	unguard;
}

VStr Info_ValueForKey(const VStr& s, const VStr& key)
{
    guard(Info_ValueForKey);
    if (s.IsEmpty() || key.IsEmpty())
    {
        return VStr();
    }

    if (s.Length() >= MAX_INFO_STRING)
    {
        Host_Error("Info_ValueForKey: oversize infostring");
    }

    int i = 0;
    if (s[i] == '\\')
        i++;
    while (1)
    {
        int Start = i;
        while (s[i] != '\\')
        {
            if (!s[i])
                return VStr();
            i++;
        }
        VStr pkey(s, Start, i - Start);
        i++;

        Start = i;
        while (s[i] != '\\' && s[i])
        {
            i++;
        }

        if (!key.ICmp(pkey))
            return VStr(s, Start, i - Start);

        if (!s[i])
            return VStr();
        i++;
    }
    unguard;
}

static void AddGameDir(const VStr& dir)
{
	guard(AddGameDir);
	AddGameDir(fl_basedir, dir);
	if (fl_savedir.IsNotEmpty())
	{
		AddGameDir(fl_savedir, dir);
	}
	fl_gamedir = dir;
	unguard;
}

bool VZipFile::FileExists(const VStr& FName)
{
	guard(VZipFile::FileExists);
	VStr CheckName = FName.ToLower();
	for (int i = 0; i < NumFiles; i++)
	{
		if (Files[i].Name == CheckName)
		{
			return true;
		}
	}
	return false;
	unguard;
}

void VValueBag::DumpXMLCData( VString& ioDump, VIndex inCDataAttributeIndex) const
{
	VStr<1000> cdata;

	GetNthAttribute( inCDataAttributeIndex, NULL)->GetString( cdata);

	if (NeedsEscapeSequence( cdata, sXMLEscapeChars_Contents, sXMLEscapeChars_Contents + sizeof(sXMLEscapeChars_Contents)/sizeof(UniChar)))
	{
		ioDump += CVSTR( "<![CDATA[");

		// see if there's a "]]>" for which we need to split
		// someting like: hello ]]> world
		// becomes: <![CDATA[hello ]]>]]<![CDATA[> world]]>
		
		VIndex pos = 1;
		while( pos <= cdata.GetLength())
		{
			VIndex endTag = cdata.Find( CVSTR( "]]>"), pos, true);
			if (endTag > 0)
			{
				// add everything including ]]>
				ioDump.AppendBlock( cdata.GetCPointer() + pos - 1, (endTag - pos + 3) * sizeof( UniChar), VTC_UTF_16);
				// add ]] outside CDATA section
				ioDump.AppendString( CVSTR( "]]"));
				// open a new CDATA section and add remaining >
				ioDump += CVSTR( "<![CDATA[>");
				pos = endTag + 3;
			}
			else
			{
				// add everything left
				ioDump.AppendBlock( cdata.GetCPointer() + pos - 1, (cdata.GetLength() - pos + 1) * sizeof( UniChar), VTC_UTF_16);
				break;
			}
		}
		ioDump += CVSTR( "]]>");
	}
	else
	{
		VString toInsert;
		for (sLONG i = 0, n = cdata.GetLength(); i < n; i++)
		{
			UniChar c = cdata[ i ];
			if (c != 13 && c != 10 && c != 9)
			{
				toInsert += c;
			}
		}
		if ( ! toInsert.IsEmpty() )
			ioDump += toInsert;
	}
}