cppcheck/lib/filelister.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2009 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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*/
#include <sstream>
#include <vector>
#include <cstring>
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#include <string>
#include <cctype>
#include <algorithm>
#include "filelister.h"
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#if defined(_WIN32)
#include "filelister_win32.h"
#else // POSIX-style system
#include "filelister_unix.h"
#endif
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// We have one singleton FileLister.
static FileLister *fileLister;
FileLister * getFileLister()
{
if (fileLister == NULL)
{
#if defined(_WIN32)
fileLister = new FileListerWin32;
#else // POSIX-style system
fileLister = new FileListerUnix;
#endif
return fileLister;
}
return fileLister;
}
std::string FileLister::simplifyPath(const char *originalPath)
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{
std::string subPath = "";
std::vector<std::string> pathParts;
for (; *originalPath; ++originalPath)
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{
if (*originalPath == '/' || *originalPath == '\\')
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{
if (subPath.length() > 0)
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{
pathParts.push_back(subPath);
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subPath = "";
}
pathParts.push_back(std::string(1 , *originalPath));
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}
else
subPath.append(1, *originalPath);
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}
if (subPath.length() > 0)
pathParts.push_back(subPath);
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for (std::vector<std::string>::size_type i = 0; i < pathParts.size(); ++i)
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{
if (pathParts[i] == ".." && i > 1 && pathParts.size() > i + 1)
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{
pathParts.erase(pathParts.begin() + i + 1);
pathParts.erase(pathParts.begin() + i);
pathParts.erase(pathParts.begin() + i - 1);
pathParts.erase(pathParts.begin() + i - 2);
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i = 0;
}
else if (i > 0 && pathParts[i] == ".")
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{
pathParts.erase(pathParts.begin() + i);
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i = 0;
}
else if (pathParts[i] == "/" && i > 0 && pathParts[i-1] == "/")
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{
pathParts.erase(pathParts.begin() + i - 1);
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i = 0;
}
}
std::ostringstream oss;
for (std::vector<std::string>::size_type i = 0; i < pathParts.size(); ++i)
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{
oss << pathParts[i];
}
return oss.str();
}
// This wrapper exists because Sun's CC does not allow a static_cast
// from extern "C" int(*)(int) to int(*)(int).
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static int tolowerWrapper(int c)
{
return std::tolower(c);
}
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bool FileLister::acceptFile(const std::string &filename)
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{
std::string::size_type dotLocation = filename.find_last_of('.');
if (dotLocation == std::string::npos)
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return false;
std::string extension = filename.substr(dotLocation);
std::transform(extension.begin(), extension.end(), extension.begin(), tolowerWrapper);
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if (extension == ".cpp" ||
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extension == ".cxx" ||
extension == ".cc" ||
extension == ".c" ||
extension == ".c++" ||
extension == ".txx")
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{
return true;
}
return false;
}