c ++ CAtlRegExp.Parse&匹配wstring [英] c++ CAtlRegExp.Parse & Match wstring

问题描述

我正在尝试使用这个类，因为它是WinHttpClient的一部分，但我得到以下错误（它适用于Unicode，但是然后unicode打破了我的所有代码，所以我想我会修复它）：

I'm trying to use this class as it's part of WinHttpClient, but I get the following errors (It works on Unicode, but then unicode breaks all my code so I figured I'd fix that instead):

Erreur	2	error C2664: 'ATL::REParseError ATL::CAtlRegExp<ATL::CAtlRECharTraits>::Parse(const char *,BOOL)' : impossible de convertir l'argument 1 de 'const wchar_t *' en 'const char *'	c:\users\david\desktop\directx\overlay\Project\RegExp.h	52	1	Output

Erreur	3	error C2664: 'BOOL ATL::CAtlRegExp<ATL::CAtlRECharTraits>::Match(const char *,ATL::CAtlREMatchContext<CharTraits> *,const char **)' : impossible de convertir l'argument 1 de 'const wchar_t *' en 'const char *'	c:\users\david\desktop\directx\overlay\Project\RegExp.h		70	1	Output

Erreur	4	error C2664: 'void ATL::CAtlREMatchContext<CharTraits>::GetMatch(UINT,ATL::CAtlREMatchContext<CharTraits>::MatchGroup *)' : impossible de convertir l'argument 2 de 'const wchar_t **' en 'const char **'	c:\users\david\desktop\directx\overlay\Project\RegExp.h		78	1	Output


	5	IntelliSense : l'argument de type "const wchar_t *" est incompatible avec le paramètre de type "const ATL::CAtlRECharTraitsA::RECHARTYPE *"	c:\users\david\desktop\directx\overlay\Project\RegExp.h		52	32	Output

	6	IntelliSense : l'argument de type "const wchar_t *" est incompatible avec le paramètre de type "const ATL::CAtlRECharTraitsA::RECHARTYPE *"	c:\users\david\desktop\directx\overlay\Project\RegExp.h		70	23	Output

	7	IntelliSense : l'argument de type "const wchar_t **" est incompatible avec le paramètre de type "const ATL::CAtlRECharTraitsA::RECHARTYPE **"	c:\users\david\desktop\directx\overlay\Project\RegExp.h		70	35	Output

	8	IntelliSense : aucune instance de fonction surchargée "ATL::CAtlREMatchContext<CharTraits>::GetMatch [avec CharTraits=ATL::CAtlRECharTraits]" ne correspond à la liste d'arguments
            les types d'arguments sont : (int, const wchar_t **, const wchar_t **)
            le type d'objet est : ATL::CAtlREMatchContext<ATL::CAtlRECharTraits>	c:\users\david\desktop\directx\overlay\Project\RegExp.h		78	7	Output

/**
*  Copyright 2008-2009 Cheng Shi.  All rights reserved.
*  Email: [e-mail]
*/

#ifndef REGEXP_H
#define REGEXP_H

#include <iostream>
#include <string>
#include <vector>
using namespace std;

#pragma warning(push)
#pragma warning(disable: 6385 6011 4127)
#include "atlrx.h"
#pragma warning(pop)

/*
* Parameters
*  [in] regExp: Value of type string which is the input regular expression.
*  [in] caseSensitive: Value of type bool which indicate whether the parse is case sensitive.
*  [in] groupCount: Value of type int which is the group count of the regular expression.
*  [in] source: Value of type string reference which is the source to parse.
*  [out] result: Value of type vecotr of strings which is the output of the parse.
*  [in] allowDuplicate: Value of type bool which indicates whether duplicate items are added to the output result.
*
* Return Value
*  Returns true if the function succeeds, or false otherwise.
*
* Remarks
*  The output result is devided into groups.  User should get the groups according to the group count.  For example:
*  1. RegExp = L"{ab}", source = L"abcabe", then result = L"ab", L"ab".
*  2. RegExp = L"{ab}{cd}", source = L"abcdeabecd", then result = L"ab", L"cd", L"ab", L"cd".
*/
inline bool ParseRegExp(const wstring ®Exp, bool caseSensitive, int groupCount, const wstring &source, vector<wstring> &result, bool allowDuplicate = false)
{
	result.clear();
	if (regExp.size() <= 0)
	{
		return false;
	}
	if (groupCount <= 0)
	{
		return false;
	}
	if (source.size() <= 0)
	{
		return false;
	}
	CAtlRegExp<> re;
	REParseError error = re.Parse(regExp.c_str(), caseSensitive);
	if (error != REPARSE_ERROR_OK)
	{
		return false;
	}
	wchar_t *pSource = new wchar_t[source.size() + 1];
	wchar_t *pSourceEnd = pSource + source.size();
	if (pSource == NULL)
	{
		return false;
	}
	wcscpy_s(pSource, source.size() + 1, source.c_str());
	BOOL bSucceed = TRUE;
	CAtlREMatchContext<> mc;
	const wchar_t *pFrom = pSource;
	const wchar_t *pTo = NULL;
	while (bSucceed)
	{
		bSucceed = re.Match(pFrom, &mc, &pTo);
		if (bSucceed)
		{
			const wchar_t *pStart = NULL;
			const wchar_t *pEnd = NULL;
			vector<wstring> tempMatch;
			for (int i = 0; i < groupCount; i++)
			{
				mc.GetMatch(i, &pStart, &pEnd);
				if (pStart != NULL && pEnd != NULL)
				{
					wstring match(pStart, pEnd - pStart);
					tempMatch.push_back(match);
				}
				else
				{
					break;
				}
			}
			bool bAdd = true;
			if (!allowDuplicate)
			{
				// Check whether this match already exists in the vector.
				for (vector<wstring>::iterator it = result.begin(); it != result.end();)
				{
					bool bEqual = true;
					for (vector<wstring>::iterator tempMatchIt = tempMatch.begin(); tempMatchIt != tempMatch.end(); tempMatchIt++, it++)
					{
						bool bGroupEqual = true;
						if (caseSensitive)
						{
							bGroupEqual = (wcscmp(it->c_str(), tempMatchIt->c_str()) == 0);
						}
						else
						{
							bGroupEqual = (_wcsicmp(it->c_str(), tempMatchIt->c_str()) == 0);
						}
						if (!bGroupEqual)
						{
							bEqual = false;
						}
					}
					if (bEqual)
					{
						bAdd = false;
						break;
					}
				}
			}
			if (bAdd)
			{
				for (vector<wstring>::iterator tempMatchIt = tempMatch.begin(); tempMatchIt != tempMatch.end(); tempMatchIt++)
				{
					result.push_back(*tempMatchIt);
				}
			}
			if (pTo < pSourceEnd)
			{
				pFrom = pTo;
			}
			else
			{
				break;
			}
		}
		else
		{
			break;
		}
	}

	delete[] pSource;

	return true;
}

#endif // REGEXP_H

有谁可以帮我解决这个问题？尝试按字符串等更改wstring但它不起作用。

Does anyone can help me fix that? Tried change wstring by string etc but it didn't work.

推荐答案

您可以尝试使用W2A或W2CA宏，参见 ATL和MFC字符串转换宏 [ ^ ]

You can try to use the W2A or W2CA macro, see ATL and MFC String Conversion Macros[^]

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