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    path: root/src/Main/StringFormatter.cpp
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    /*
     Derived from source code of TrueCrypt 7.1a, which is
     Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
     by the TrueCrypt License 3.0.
    
     Modifications and additions to the original source code (contained in this file)
     and all other portions of this file are Copyright (c) 2013-2017 IDRIX
     and are governed by the Apache License 2.0 the full text of which is
     contained in the file License.txt included in VeraCrypt binary and source
     code distribution packages.
    */
    
    #include "System.h"
    #include "StringFormatter.h"
    #include "UserInterfaceException.h"
    
    namespace VeraCrypt
    {
    	StringFormatter::StringFormatter (const wxString &format, StringFormatterArg arg0, StringFormatterArg arg1, StringFormatterArg arg2, StringFormatterArg arg3, StringFormatterArg arg4, StringFormatterArg arg5, StringFormatterArg arg6, StringFormatterArg arg7, StringFormatterArg arg8, StringFormatterArg arg9)
    	{
    		bool numberExpected = false;
    		bool endTagExpected = false;
    
    		//TODO replace this workaround for %s, %d, %c for printf
    		wxString text(format);
    		text.Replace (L"%s", L"{}",true);
    		text.Replace (L"%d", L"{}",true);
    		text.Replace (L"%c", L"{}",true);
    		int i=0;
    		while (text.find(L"{}") != (size_t) wxNOT_FOUND){
    			text.Replace(L"{}",L"{"+wxString::Format(wxT("%i"),i++)+L"}",false);
    		}
    
    		foreach (wchar_t c, wstring (text))
    		{
    			if (numberExpected)
    			{
    				endTagExpected = true;
    				bool err = false;
    
    				switch (c)
    				{
    				case L'{': FormattedString += L'{'; endTagExpected = false; break; // Escaped {
    
    				case L'0': FormattedString += arg0; err = arg0.IsEmpty(); break;
    				case L'1': FormattedString += arg1; err = arg1.IsEmpty(); break;
    				case L'2': FormattedString += arg2; err = arg2.IsEmpty(); break;
    				case L'3': FormattedString += arg3; err = arg3.IsEmpty(); break;
    				case L'4': FormattedString += arg4; err = arg4.IsEmpty(); break;
    				case L'5': FormattedString += arg5; err = arg5.IsEmpty(); break;
    				case L'6': FormattedString += arg6; err = arg6.IsEmpty(); break;
    				case L'7': FormattedString += arg7; err = arg7.IsEmpty(); break;
    				case L'8': FormattedString += arg8; err = arg8.IsEmpty(); break;
    				case L'9': FormattedString += arg9; err = arg9.IsEmpty(); break;
    
    				default: err = true; break;
    				}
    
    				if (err)
    					throw StringFormatterException (SRC_POS, wstring (format));
    
    				numberExpected = false;
    			}
    			else if (endTagExpected)
    			{
    				if (c != L'}')
    					throw StringFormatterException (SRC_POS, wstring (format));
    
    				endTagExpected = false;
    			}
    			else if (c == L'{')
    			{
    				numberExpected = true;
    			}
    			else if (c == L'}')
    			{
    				FormattedString += c;
    				endTagExpected = true;
    			}
    			else
    				FormattedString += c;
    		}
    
    		if (numberExpected
    			|| endTagExpected
    			|| (!arg0.WasReferenced() && !arg0.IsEmpty())
    			|| (!arg1.WasReferenced() && !arg1.IsEmpty())
    			|| (!arg2.WasReferenced() && !arg2.IsEmpty())
    			|| (!arg3.WasReferenced() && !arg3.IsEmpty())
    			|| (!arg4.WasReferenced() && !arg4.IsEmpty())
    			|| (!arg5.WasReferenced() && !arg5.IsEmpty())
    			|| (!arg6.WasReferenced() && !arg6.IsEmpty())
    			|| (!arg7.WasReferenced() && !arg7.IsEmpty())
    			|| (!arg8.WasReferenced() && !arg8.IsEmpty())
    			|| (!arg9.WasReferenced() && !arg9.IsEmpty())
    			)
    			throw StringFormatterException (SRC_POS, wstring (format));
    	}
    
    	StringFormatter::~StringFormatter ()
    	{
    	}
    }