cppcheck/lib/errorlogger.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2010 Daniel Marjamäki and Cppcheck team.
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*
* 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/>.
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*/
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#include "errorlogger.h"
#include "tokenize.h"
#include "token.h"
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#include <sstream>
ErrorLogger::ErrorMessage::ErrorMessage()
:_severity(Severity::none)
{
}
#include <iostream>
ErrorLogger::ErrorMessage::ErrorMessage(const std::list<FileLocation> &callStack, Severity::SeverityType severity, const std::string &msg, const std::string &id)
{
_callStack = callStack;
_severity = severity;
_msg = msg;
_id = id;
}
std::string ErrorLogger::ErrorMessage::serialize() const
{
std::ostringstream oss;
oss << _id.length() << " " << _id;
oss << Severity::toString(_severity).length() << " " << Severity::toString(_severity);
oss << _msg.length() << " " << _msg;
oss << _callStack.size() << " ";
for (std::list<ErrorLogger::ErrorMessage::FileLocation>::const_iterator tok = _callStack.begin(); tok != _callStack.end(); ++tok)
{
std::ostringstream smallStream;
smallStream << (*tok).line << ":" << (*tok).getfile();
oss << smallStream.str().length() << " " << smallStream.str();
}
return oss.str();
}
bool ErrorLogger::ErrorMessage::deserialize(const std::string &data)
{
_callStack.clear();
std::istringstream iss(data);
std::vector<std::string> results;
while (iss.good())
{
unsigned int len = 0;
if (!(iss >> len))
return false;
iss.get();
std::string temp;
for (unsigned int i = 0; i < len && iss.good(); ++i)
{
char c = static_cast<char>(iss.get());
temp.append(1, c);
}
results.push_back(temp);
if (results.size() == 3)
break;
}
_id = results[0];
_severity = Severity::fromString(results[1]);
_msg = results[2];
unsigned int stackSize = 0;
if (!(iss >> stackSize))
return false;
while (iss.good())
{
unsigned int len = 0;
if (!(iss >> len))
return false;
iss.get();
std::string temp;
for (unsigned int i = 0; i < len && iss.good(); ++i)
{
char c = static_cast<char>(iss.get());
temp.append(1, c);
}
ErrorLogger::ErrorMessage::FileLocation loc;
loc.file = temp.substr(temp.find(':') + 1);
temp = temp.substr(0, temp.find(':'));
std::istringstream fiss(temp);
fiss >> loc.line;
_callStack.push_back(loc);
if (_callStack.size() >= stackSize)
break;
}
return true;
}
std::string ErrorLogger::ErrorMessage::getXMLHeader()
{
return "<?xml version=\"1.0\"?>\n"
"<results>";
}
std::string ErrorLogger::ErrorMessage::getXMLFooter()
{
return "</results>";
}
static std::string stringToXml(std::string s)
{
std::string::size_type pos = 0;
while ((pos = s.find_first_of("<>&\"", pos)) != std::string::npos)
{
if (s[pos] == '<')
s.insert(pos + 1, "&lt;");
else if (s[pos] == '>')
s.insert(pos + 1, "&gt;");
else if (s[pos] == '&')
s.insert(pos + 1, "&amp;");
else if (s[pos] == '"')
s.insert(pos + 1, "&quot;");
s.erase(pos, 1);
++pos;
}
return s;
}
std::string ErrorLogger::ErrorMessage::toXML() const
{
std::ostringstream xml;
xml << "<error";
if (!_callStack.empty())
{
xml << " file=\"" << stringToXml(_callStack.back().getfile()) << "\"";
xml << " line=\"" << _callStack.back().line << "\"";
}
xml << " id=\"" << _id << "\"";
xml << " severity=\"" << Severity::toString(_severity) << "\"";
xml << " msg=\"" << stringToXml(_msg) << "\"";
xml << "/>";
return xml.str();
}
void ErrorLogger::ErrorMessage::findAndReplace(std::string &source, const std::string &searchFor, const std::string &replaceWith)
{
std::string::size_type index = 0;
while ((index = source.find(searchFor, index)) != std::string::npos)
{
source.replace(index, searchFor.length(), replaceWith);
index += replaceWith.length() - searchFor.length() + 1;
}
}
std::string ErrorLogger::ErrorMessage::toString(const std::string &outputFormat) const
{
if (outputFormat.length() == 0)
{
std::ostringstream text;
if (!_callStack.empty())
text << callStackToString(_callStack) << ": ";
if (_severity != Severity::none)
text << "(" << Severity::toString(_severity) << ") ";
text << _msg;
return text.str();
}
else
{
std::string result = outputFormat;
findAndReplace(result, "{id}", _id);
findAndReplace(result, "{severity}", Severity::toString(_severity));
findAndReplace(result, "{message}", _msg);
if (!_callStack.empty())
{
std::ostringstream oss;
oss << _callStack.back().line;
findAndReplace(result, "{line}", oss.str());
findAndReplace(result, "{file}", _callStack.back().getfile());
}
else
{
findAndReplace(result, "{file}", "");
findAndReplace(result, "{line}", "");
}
return result;
}
}
std::string ErrorLogger::callStackToString(const std::list<ErrorLogger::ErrorMessage::FileLocation> &callStack)
{
std::ostringstream ostr;
for (std::list<ErrorLogger::ErrorMessage::FileLocation>::const_iterator tok = callStack.begin(); tok != callStack.end(); ++tok)
ostr << (tok == callStack.begin() ? "" : " -> ") << "[" << (*tok).getfile() << ":" << (*tok).line << "]";
return ostr.str();
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}
std::string ErrorLogger::ErrorMessage::FileLocation::getfile() const
{
std::string f(file);
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// replace "/ab/../" with "/"..
std::string::size_type pos = 0;
while ((pos = f.find("..", pos + 1)) != std::string::npos)
{
// position must be at least 4..
if (pos < 4)
continue;
// Previous char must be a separator..
if (f[pos-1] != '/' && f[pos-2] != '\\')
continue;
// Next char must be a separator..
if (f[pos+2] != '/' && f[pos+2] != '\\')
continue;
// Locate previous separator..
std::string::size_type sep = f.find_last_of("/\\", pos - 2);
if (sep == std::string::npos)
continue;
// Delete substring..
f.erase(sep, pos + 2 - sep);
pos = sep;
}
return f;
}