/***************************************************************
 * Name:      TextFileSearcherRegEx
 * Purpose:   TextFileSearcherRegEx is used to search text files
 *            for regular expressions.
 * Author:    Jerome ANTOINE
 * Created:   2007-04-07
 * Copyright: Jerome ANTOINE
 * License:   GPL
 **************************************************************/

#include "sdk.h"
#ifndef CB_PRECOMP
	// Required extra includes
	#include <wx/string.h>
#endif

#include "TextFileSearcherRegEx.h"


TextFileSearcherRegEx::TextFileSearcherRegEx(const wxString& searchText, bool matchCase, bool matchWordBegin,
											bool matchWord)
					  :TextFileSearcher(searchText, matchCase, matchWordBegin, matchWord)
{
	wxString pattern = searchText;

#ifdef wxHAS_REGEX_ADVANCED
    int flags = wxRE_ADVANCED;
#else
    int flags = wxRE_EXTENDED;
#endif
	if ( matchCase == false )
	{
		flags |= wxRE_ICASE;
	}

	if ( matchWord == true )
	{
		pattern = _T("([^[:alnum:]_]|^)") + pattern + _T("([^[:alnum:]_]|$)");
	}
	else if ( matchWordBegin == true )
	{
		pattern = _T("([^[:alnum:]_]|^)") + pattern;
	}

	m_RegEx.Compile(pattern, flags);
}


bool TextFileSearcherRegEx::MatchLine(wxString line)
{
	bool match = false;
	if ( m_RegEx.IsValid() )
	{
		match = m_RegEx.Matches(line.c_str());
	}
	return match;
}


bool TextFileSearcherRegEx::IsOk(wxString* pErrorMessage)
{
	bool ok = m_RegEx.IsValid();
	if ( !ok && pErrorMessage )
	{
		*pErrorMessage = _T("Bad regular expression.");
	}
	return ok;
}
