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121 lines
4.1 KiB
C++
121 lines
4.1 KiB
C++
// ***************************************************************** -*- C++ -*-
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/*
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* Copyright (C) 2004-2021 Exiv2 authors
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* This program is part of the Exiv2 distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
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*/
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// *****************************************************************************
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// included header files
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#include "config.h"
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#include "utils.hpp"
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#if defined(_MSC_VER)
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# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
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#endif
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// + standard includes
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#ifdef EXV_HAVE_UNISTD_H
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# include <unistd.h> // for stat()
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#endif
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <climits>
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#include <cerrno>
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#include <cstdlib>
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#include <cstring>
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#include <string>
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#include <iostream>
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#include <sstream>
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namespace Util {
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// *****************************************************************************
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// free functions
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std::string dirname(const std::string& path)
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{
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if (path == "") return ".";
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// Strip trailing slashes or backslashes
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std::string p = path;
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while ( p.length() > 1
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&& (p[p.length()-1] == '\\' || p[p.length()-1] == '/')) {
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p = p.substr(0, p.length()-1);
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}
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if (p == "\\" || p == "/") return p;
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if (p.length() == 2 && p[1] == ':') return p; // For Windows paths
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std::string::size_type idx = p.find_last_of("\\/");
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if (idx == std::string::npos) return ".";
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if (idx == 1 && p[0] == '\\' && p[1] == '\\') return p; // For Windows paths
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p = p.substr(0, idx == 0 ? 1 : idx);
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while ( p.length() > 1
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&& (p[p.length()-1] == '\\' || p[p.length()-1] == '/')) {
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p = p.substr(0, p.length()-1);
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}
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return p;
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}
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std::string basename(const std::string& path, bool delsuffix)
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{
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if (path == "") return ".";
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// Strip trailing slashes or backslashes
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std::string p = path;
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while ( p.length() > 1
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&& (p[p.length()-1] == '\\' || p[p.length()-1] == '/')) {
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p = p.substr(0, p.length()-1);
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}
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if (p.length() == 2 && p[1] == ':') return ""; // For Windows paths
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std::string::size_type idx = p.find_last_of("\\/");
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if (idx == 1 && p[0] == '\\' && p[1] == '\\') return ""; // For Windows paths
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if (idx != std::string::npos) p = p.substr(idx+1);
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if (delsuffix) p = p.substr(0, p.length() - suffix(p).length());
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return p;
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}
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std::string suffix(const std::string& path)
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{
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std::string b = basename(path);
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std::string::size_type idx = b.rfind('.');
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if (idx == std::string::npos || idx == 0 || idx == b.length()-1) {
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return "";
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}
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return b.substr(idx);
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}
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bool strtol(const char* nptr, long& n)
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{
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if (!nptr || *nptr == '\0') return false;
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char* endptr = 0;
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long tmp = std::strtol(nptr, &endptr, 10);
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if (*endptr != '\0') return false;
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if (tmp == LONG_MAX || tmp == LONG_MIN) return false;
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n = tmp;
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return true;
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}
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void replace(std::string& text, const std::string& searchText, const std::string& replaceText)
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{
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std::string::size_type index = 0;
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while ((index = text.find(searchText, index)) != std::string::npos)
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{
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text.replace(index, searchText.length(), replaceText.c_str(), replaceText.length());
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index++;
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}
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}
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} // namespace Util
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