206 lines
4.2 KiB
C++
206 lines
4.2 KiB
C++
/*
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* This file is a part of AllPlaceFinder library
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* and is distributed under the 2-Clause BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2021-2024, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <iostream>
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#include <sys/stat.h>
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#include "utf8/utf8.h"
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#include "misc.h"
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#include "convert/convert.h"
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namespace allplacefinder
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{
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bool file_exists(const std::wstring & file_path)
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{
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struct stat sb;
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std::string file_path_utf8;
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pt::wide_to_utf8(file_path, file_path_utf8);
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if( stat(file_path_utf8.c_str(), &sb) != 0 )
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return false;
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return (sb.st_mode & S_IFREG) != 0;
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}
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bool dir_exists(const std::wstring & file_path)
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{
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struct stat sb;
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std::string file_path_utf8;
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pt::wide_to_utf8(file_path, file_path_utf8);
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if( stat(file_path_utf8.c_str(), &sb) != 0 )
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return false;
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return (sb.st_mode & S_IFDIR) != 0;
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}
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bool open_file_for_reading(const std::wstring & file_path, std::ifstream & str, const char * err_msg)
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{
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std::string file_path_utf8;
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pt::wide_to_utf8(file_path, file_path_utf8);
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str.clear();
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str.open(file_path_utf8.c_str(), std::ios_base::in | std::ios_base::binary);
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if( !str )
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{
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std::cerr << err_msg << std::endl;
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return false;
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}
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return true;
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}
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bool open_file_for_writing(const std::wstring & file_path, std::ofstream & str, const char * err_msg)
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{
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std::string file_path_utf8;
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pt::wide_to_utf8(file_path, file_path_utf8);
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str.clear();
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str.open(file_path_utf8.c_str(), std::ios_base::out | std::ios_base::binary);
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if( !str )
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{
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std::cerr << err_msg << std::endl;
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return false;
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}
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return true;
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}
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void create_id_str(long id, std::vector<std::wstring> & path)
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{
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wchar_t buffer[64];
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size_t len = sizeof(buffer) / sizeof(wchar_t);
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size_t str_len = 0;
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std::wstring d;
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path.clear();
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pt::Toa(id, buffer, len, 16, &str_len);
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if( str_len == 0 )
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return;
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size_t padding = 0;
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if( str_len < 16 )
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padding = 16 - str_len;
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d = L"00";
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padding = padding & (~1);
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for(size_t i=0 ; i < padding ; i += 2)
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{
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path.push_back(d);
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}
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d.clear();
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size_t i = 0;
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if( (str_len & 1) != 0 )
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{
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d = L"0";
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d += buffer[0];
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i = 1;
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path.push_back(d);
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}
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for( ; i + 1 < str_len ; i += 2)
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{
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d = buffer[i];
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d += buffer[i+1];
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path.push_back(d);
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}
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}
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bool create_dir(const std::wstring & path)
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{
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std::string path_utf8;
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pt::wide_to_utf8(path, path_utf8);
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return mkdir(path_utf8.c_str(), 0755) == 0;
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}
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bool create_dir_if_not_exists(const std::wstring & path)
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{
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if( !dir_exists(path) )
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{
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if( !create_dir(path) )
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{
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std::cout << "I cannot create directory: ";
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print(path);
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std::cout << std::endl;
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return false;
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}
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}
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return true;
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}
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void print(const std::wstring & str)
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{
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std::string str_utf8;
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pt::wide_to_utf8(str, str_utf8);
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std::cout << str_utf8;
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}
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void save_stream(const pt::TextStream & in, std::ofstream & out)
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{
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pt::TextStream::const_iterator i = in.begin();
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for( ; i != in.end() ; ++i)
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{
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out << *i;
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}
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}
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} // namespace
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