cppcheck/tools/errmsg.cpp

#include <iostream>
#include <list>
#include <string>

class Message
{
private:
    std::string _funcname;
    std::string _msg;
    std::string _par1;
    unsigned int _settings;

public:
    Message(std::string funcname, unsigned int settings, std::string msg, std::string par1)
            : _funcname(funcname), _settings(settings), _msg(msg), _par1(par1)
    { }

    static const unsigned int ALL = 1;
    static const unsigned int STYLE = 2;

    std::string msg(bool code) const
    {
		const char *str = code ? "\"" : "";
        std::string ret( str + _msg + str );
		if (! _par1.empty())
		{
			std::string::size_type pos = 0;
			while ((pos = ret.find("%1", pos)) != std::string::npos)
			{
				ret.erase(pos, 2);
				if ( code )
					ret.insert(pos, "\" + " + _par1 + " + \"");
				else
					ret.insert(pos, _par1);
			}
		}
        return ret;
    }

    void generateCode(std::ostream &ostr) const
    {
        // Error message..
        ostr << "    static std::string " << _funcname << "(";
        if (! _par1.empty())
            ostr << "const std::string &" << _par1;
        ostr << ") const\n";
        ostr << "    { return " << msg(true) << "; }" << std::endl;

        // Settings..
        ostr << std::endl;
        ostr << "    static bool " << _funcname << "(const Settings &s) const" << std::endl;
        ostr << "    { return ";
        if (_settings == 0)
            ostr << "true";
        else
        {
            if (_settings & ALL)
                ostr << "s._showAll";
            if (_settings & (ALL | STYLE))
                ostr << " & ";
            if (_settings & STYLE)
                ostr << "s._checkCodingStyle";
        }
        ostr << "; }" << std::endl;
    }

	void generateDoc(std::ostream &ostr, unsigned int i) const
	{
		if ( _settings == i )
		{
			ostr << "    " << msg(false) << std::endl;
		}
	}

};




int main()
{
    // Error messages..
    std::list<Message> err;
    err.push_back(Message("memleak", 0, "Memory leak: %1", "varname"));

    // Generate code..
	std::cout << "Generate code.." << std::endl;
    for (std::list<Message>::const_iterator it = err.begin(); it != err.end(); ++it)
        it->generateCode(std::cout);
	std::cout << std::endl;

	// Generate documentation..
	std::cout << "Generate doc.." << std::endl;
	for ( unsigned int i = 0; i < 4; ++i )
	{
		const char *suite[4] = { "standard", "all", "style", "all + style" };
		std::cout << "    =" << suite[i] << "=" << std::endl;
		for (std::list<Message>::const_iterator it = err.begin(); it != err.end(); ++it)
			it->generateDoc(std::cout, i);
	}
	std::cout << std::endl;

    return 0;
}