85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2023 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#include "ogr_utils.hpp"
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#include <mapnik/datasource.hpp>
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std::vector<ogr_utils::option_ptr> ogr_utils::split_open_options(const std::string& options)
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{
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size_t i;
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bool escaped = false; // if previous character was a backslash to escape a backslash or space
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std::vector<ogr_utils::option_ptr> opts;
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std::string unescaped_str; // copy of input string but unescaped
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for (i = 0; i < options.size(); ++i)
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{
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char current = options.at(i);
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if (current == '\\')
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{
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if (escaped)
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{
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unescaped_str.push_back(current);
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}
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escaped = !escaped;
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}
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else if (current != ' ')
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{
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unescaped_str.push_back(current);
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}
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if (current == ' ' || i + 1 == options.size())
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{
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if (!escaped)
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{
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size_t count = unescaped_str.size();
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if (count > 0)
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{
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option_ptr opt(new char[count + 1], [](char* arr) { delete[] arr; });
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unescaped_str.copy(opt.get(), count);
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opt[count] = '\0';
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opts.push_back(std::move(opt));
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}
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unescaped_str = "";
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}
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else
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{
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escaped = false;
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unescaped_str.push_back(current);
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}
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}
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}
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if (escaped)
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{
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throw mapnik::datasource_exception("<open_options> parameter ends with single backslash");
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}
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opts.emplace_back(nullptr);
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return opts;
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}
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char** ogr_utils::open_options_for_ogr(std::vector<ogr_utils::option_ptr>& options)
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{
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char** for_ogr = new char*[options.size() + 1];
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for (size_t i = 0; i < options.size(); ++i)
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{
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for_ogr[i] = options.at(i).get();
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}
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for_ogr[options.size()] = nullptr;
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return for_ogr;
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}
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