cppcheck/tools/errmsg.cpp

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/*
* cppcheck - c/c++ syntax checking
* Copyright (C) 2007-2009 Daniel Marjamäki, Reijo Tomperi, Nicolas Le Cam
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/
*/
#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;
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std::string msg(bool code) const
{
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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;
}
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void generateCode(std::ostream &ostr) const
{
// Error message..
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ostr << " static std::string " << _funcname << "(";
if (! _par1.empty())
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ostr << "const std::string &" << _par1;
ostr << ") const\n";
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ostr << " { return " << msg(true) << "; }" << std::endl;
// Settings..
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ostr << std::endl;
ostr << " static bool " << _funcname << "(const Settings &s) const" << std::endl;
ostr << " { return ";
if (_settings == 0)
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ostr << "true";
else
{
if (_settings & ALL)
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ostr << "s._showAll";
if (_settings & (ALL | STYLE))
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ostr << " & ";
if (_settings & STYLE)
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ostr << "s._checkCodingStyle";
}
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ostr << "; }" << std::endl;
}
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void generateDoc(std::ostream &ostr, unsigned int i) const
{
if (_settings == i)
{
ostr << " " << msg(false) << std::endl;
}
}
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};
int main()
{
// Error messages..
std::list<Message> err;
err.push_back(Message("memleak", 0, "Memory leak: %1", "varname"));
// Generate code..
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std::cout << "Generate code.." << std::endl;
for (std::list<Message>::const_iterator it = err.begin(); it != err.end(); ++it)
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it->generateCode(std::cout);
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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;
}