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/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2025 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#include "ogr_utils.hpp"
#include <mapnik/datasource.hpp>
std::vector<ogr_utils::option_ptr> ogr_utils::split_open_options(std::string const& options)
{
size_t i;
bool escaped = false; // if previous character was a backslash to escape a backslash or space
std::vector<ogr_utils::option_ptr> opts;
std::string unescaped_str; // copy of input string but unescaped
for (i = 0; i < options.size(); ++i)
{
char current = options.at(i);
if (current == '\\')
{
if (escaped)
{
unescaped_str.push_back(current);
}
escaped = !escaped;
}
else if (current != ' ')
{
unescaped_str.push_back(current);
}
if (current == ' ' || i + 1 == options.size())
{
if (!escaped)
{
size_t count = unescaped_str.size();
if (count > 0)
{
option_ptr opt(new char[count + 1], [](char* arr) { delete[] arr; });
unescaped_str.copy(opt.get(), count);
opt[count] = '\0';
opts.push_back(std::move(opt));
}
unescaped_str = "";
}
else
{
escaped = false;
unescaped_str.push_back(current);
}
}
}
if (escaped)
{
throw mapnik::datasource_exception("<open_options> parameter ends with single backslash");
}
opts.emplace_back(nullptr);
return opts;
}
char** ogr_utils::open_options_for_ogr(std::vector<ogr_utils::option_ptr> const& options)
{
char** for_ogr = new char*[options.size() + 1];
for (size_t i = 0; i < options.size(); ++i)
{
for_ogr[i] = options.at(i).get();
}
for_ogr[options.size()] = nullptr;
return for_ogr;
}
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