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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2015 Daniel Marjamäki and Cppcheck team.
*
* 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/>.
*/
#if defined(__GNUC__) && (defined(_WIN32) || defined(__CYGWIN__))
#undef __STRICT_ANSI__
#endif
#include "path.h"
#include <algorithm>
#include <vector>
#include <sstream>
#include <cstring>
#include <cctype>
/** Is the filesystem case insensitive? */
static bool caseInsensitiveFilesystem()
{
#ifdef _WIN32
return true;
#else
// TODO: Non-windows filesystems might be case insensitive
return false;
#endif
}
std::string Path::toNativeSeparators(std::string path)
{
#if defined(_WIN32)
char separ = '/';
char native = '\\';
#else
char separ = '\\';
char native = '/';
#endif
std::replace(path.begin(), path.end(), separ, native);
return path;
}
std::string Path::fromNativeSeparators(std::string path)
{
char nonnative = '\\';
char newsepar = '/';
std::replace(path.begin(), path.end(), nonnative, newsepar);
return path;
}
std::string Path::simplifyPath(std::string originalPath)
{
const bool isUnc = originalPath.size() > 2 && originalPath[0] == '/' && originalPath[1] == '/';
// Remove ./, .//, ./// etc. at the beginning
if (originalPath.size() > 2 && originalPath[0] == '.' &&
originalPath[1] == '/') {
size_t toErase = 2;
for (std::size_t i = 2; i < originalPath.size(); i++) {
if (originalPath[i] == '/')
toErase++;
else
break;
}
originalPath = originalPath.erase(0, toErase);
}
std::string subPath = "";
std::vector<std::string> pathParts;
for (std::size_t i = 0; i < originalPath.size(); ++i) {
if (originalPath[i] == '/' || originalPath[i] == '\\') {
if (subPath.length() > 0) {
pathParts.push_back(subPath);
subPath = "";
}
pathParts.push_back(std::string(1 , originalPath[i]));
} else
subPath.append(1, originalPath[i]);
}
if (subPath.length() > 0)
pathParts.push_back(subPath);
// First filter out all double slashes
for (unsigned int i = 1; i < pathParts.size(); ++i) {
if (i > 0 && pathParts[i] == "/" && pathParts[i-1] == "/") {
pathParts.erase(pathParts.begin() + static_cast<int>(i) - 1);
--i;
}
}
for (unsigned int i = 1; i < pathParts.size(); ++i) {
if (i > 1 && pathParts[i-2] != ".." && pathParts[i] == ".." && pathParts.size() > i + 1) {
pathParts.erase(pathParts.begin() + static_cast<int>(i) + 1);
pathParts.erase(pathParts.begin() + static_cast<int>(i));
pathParts.erase(pathParts.begin() + static_cast<int>(i) - 1);
pathParts.erase(pathParts.begin() + static_cast<int>(i) - 2);
i = 0;
} else if (i > 0 && pathParts[i] == ".") {
pathParts.erase(pathParts.begin() + static_cast<int>(i));
i = 0;
} else if (i > 0 && pathParts[i] == "/" && pathParts[i-1] == "/") {
pathParts.erase(pathParts.begin() + static_cast<int>(i) - 1);
i = 0;
}
}
if (isUnc) {
// Restore the leading double slash
pathParts.insert(pathParts.begin(), "/");
}
std::ostringstream oss;
for (std::vector<std::string>::size_type i = 0; i < pathParts.size(); ++i) {
oss << pathParts[i];
}
return oss.str();
}
std::string Path::getPathFromFilename(const std::string &filename)
{
std::size_t pos = filename.find_last_of("\\/");
if (pos != std::string::npos)
return filename.substr(0, 1 + pos);
return "";
}
bool Path::sameFileName(const std::string &fname1, const std::string &fname2)
{
#if defined(__linux__) || defined(__sun) || defined(__hpux)
return bool(fname1 == fname2);
#elif defined(_MSC_VER) || (defined(__GNUC__) && defined(_WIN32))
return bool(_stricmp(fname1.c_str(), fname2.c_str()) == 0);
#elif defined(__GNUC__)
return bool(strcasecmp(fname1.c_str(), fname2.c_str()) == 0);
#elif defined(__BORLANDC__)
return bool(stricmp(fname1.c_str(), fname2.c_str()) == 0);
#else
#error Platform filename compare function needed
#endif
}
// This wrapper exists because Sun's CC does not allow a static_cast
// from extern "C" int(*)(int) to int(*)(int).
static int tolowerWrapper(int c)
{
return std::tolower(c);
}
std::string Path::removeQuotationMarks(std::string path)
{
path.erase(std::remove(path.begin(), path.end(), '\"'), path.end());
return path;
}
std::string Path::getFilenameExtension(const std::string &path)
{
const std::string::size_type dotLocation = path.find_last_of('.');
if (dotLocation == std::string::npos)
return "";
std::string extension = path.substr(dotLocation);
if (caseInsensitiveFilesystem()) {
// on a case insensitive filesystem the case doesn't matter so
// let's return the extension in lowercase
std::transform(extension.begin(), extension.end(), extension.begin(), tolowerWrapper);
}
return extension;
}
std::string Path::getFilenameExtensionInLowerCase(const std::string &path)
{
std::string extension = getFilenameExtension(path);
std::transform(extension.begin(), extension.end(), extension.begin(), tolowerWrapper);
return extension;
}
std::string Path::getRelativePath(const std::string& absolutePath, const std::vector<std::string>& basePaths)
{
for (std::vector<std::string>::const_iterator i = basePaths.begin(); i != basePaths.end(); ++i) {
if (absolutePath == *i || i->empty()) // Seems to be a file, or path is empty
continue;
bool endsWithSep = (*i)[i->length()-1] == '/';
if (absolutePath.compare(0, i->length(), *i) == 0 && absolutePath[i->length() - (endsWithSep?1:0)] == '/') {
std::string rest = absolutePath.substr(i->length() + (endsWithSep?0:1));
return rest;
}
}
return absolutePath;
}
bool Path::isC(const std::string &path)
{
// In unix, ".C" is considered C++ file
const std::string extension = getFilenameExtension(path);
return (extension == ".c");
}
bool Path::isCPP(const std::string &path)
{
const std::string extension = getFilenameExtensionInLowerCase(path);
if (extension == ".cpp" ||
extension == ".cxx" ||
extension == ".cc" ||
extension == ".c++" ||
extension == ".hpp" ||
extension == ".tpp" ||
extension == ".txx") {
return true;
}
// In unix, ".C" is considered C++ file
return (getFilenameExtension(path) == ".C");
}
bool Path::acceptFile(const std::string &path, const std::set<std::string> &extra)
{
return !Path::isHeader(path) && (Path::isCPP(path) || Path::isC(path) || extra.find(getFilenameExtension(path)) != extra.end());
}
bool Path::isHeader(const std::string &path)
{
const std::string extension = getFilenameExtensionInLowerCase(path);
return (extension.compare(0, 2, ".h") == 0);
}
std::string Path::getAbsoluteFilePath(const std::string& filePath)
{
std::string absolute_path;
#ifdef _WIN32
char absolute[_MAX_PATH];
if (_fullpath(absolute, filePath.c_str(), _MAX_PATH))
absolute_path = absolute;
#elif defined(__linux__) || defined(__sun) || defined(__hpux) || defined(__GNUC__)
char * absolute = realpath(filePath.c_str(), NULL);
if (absolute)
absolute_path = absolute;
free(absolute);
#else
#error Platform absolute path function needed
#endif
return absolute_path;
}
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