cppcheck/lib/path.cpp

81 lines
2.2 KiB
C++

/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2010 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/>.
*/
#include <algorithm>
#include "path.h"
std::string Path::toNativeSeparators(const std::string &path)
{
#if defined(_WIN32)
char separ = '/';
char native = '\\';
#else
char separ = '\\';
char native = '/';
#endif
std::string modified(path);
std::replace(modified.begin(), modified.end(), separ, native);
return modified;
}
std::string Path::fromNativeSeparators(const std::string &path)
{
char nonnative = '\\';
char newsepar = '/';
std::string modified(path);
std::replace(modified.begin(), modified.end(), nonnative, newsepar);
return modified;
}
std::string Path::simplifyPath(const std::string &path)
{
std::string f(path);
// Remove './' from begin of the path
if (f.size() > 2 && f[0] == '.' && f[1] == '/')
f = f.erase(0, 2);
// 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] != '/')
continue;
// Next char must be a separator..
if (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;
}