C++ (Cpp) RegExp::GetBracketsCount Beispiele

Beispiel #1

Datei: strmix.cpp Projekt: CyberShadow/FAR

bool SearchString(const string& Source, const string& Str, string& ReplaceStr,int& CurPos, int Position,int Case,int WholeWords,int Reverse,int Regexp, int *SearchLength,const wchar_t* WordDiv)
{
	int StrSize=StrLength(Source);
	*SearchLength = 0;

	if (!WordDiv)
		WordDiv=Global->Opt->strWordDiv;

	if (Reverse)
	{
		Position--;

		if (Position>=StrSize)
			Position=StrSize-1;

		if (Position<0)
			return false;
	}

	if ((Position<StrSize || (!Position && !StrSize)) && !Str.IsEmpty())
	{
		if (Regexp)
		{
			string strSlash(Str);
			InsertRegexpQuote(strSlash);
			RegExp re;
			// Q: что важнее: опция диалога или опция RegExp`а?
			if (!re.Compile(strSlash, OP_PERLSTYLE|OP_OPTIMIZE|(!Case?OP_IGNORECASE:0)))
				return false;

			SMatch m[10*2], *pm = m;
			intptr_t n = re.GetBracketsCount();
			if (n > static_cast<int>(ARRAYSIZE(m)/2))
			{
				pm = (SMatch *)xf_malloc(2*n*sizeof(SMatch));
				if (!pm)
					return false;
			}

			bool found = false;
			int half = 0;
			if (!Reverse)
			{
				if (re.SearchEx(Source,Source+Position,Source+StrSize,pm,n))
					found = true;
			}
			else
			{
				int pos = 0;
				for (;;)
				{
					if (!re.SearchEx(Source,Source+pos,Source+StrSize,pm+half,n))
						break;
					pos = static_cast<int>(pm[half].start);
					if (pos > Position)
						break;

					found = true;
					++pos;
					half = n - half;
				}
				half = n - half;
			}
			if (found)
			{
				*SearchLength = pm[half].end - pm[half].start;
				CurPos = pm[half].start;
				ReplaceStr=ReplaceBrackets(Source,ReplaceStr,pm+half,n);
			}
			if (pm != m)
				xf_free(pm);

			return found;
		}

		if (Position==StrSize)
			return false;

		int Length = *SearchLength = (int)Str.GetLength();

		for (int I=Position; (Reverse && I>=0) || (!Reverse && I<StrSize); Reverse ? I--:I++)
		{
			for (int J=0;; J++)
			{
				if (!Str[J])
				{
					CurPos=I;
					return true;
				}

				if (WholeWords)
				{
					int locResultLeft=FALSE;
					int locResultRight=FALSE;
					wchar_t ChLeft=Source[I-1];

					if (I>0)
						locResultLeft=(IsSpace(ChLeft) || wcschr(WordDiv,ChLeft));
					else
						locResultLeft=TRUE;

					if (I+Length<StrSize)
					{
						wchar_t ChRight=Source[I+Length];
						locResultRight=(IsSpace(ChRight) || wcschr(WordDiv,ChRight));
					}
					else
					{
						locResultRight=TRUE;
					}

					if (!locResultLeft || !locResultRight)
						break;
				}

				wchar_t Ch=Source[I+J];

				if (Case)
				{
					if (Ch!=Str[J])
						break;
				}
				else
				{
					if (Upper(Ch)!=Upper(Str[J]))
						break;
				}
			}
		}
	}

	return false;
}