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/**************************************************************************
* *
* Regina - A Normal Surface Theory Calculator *
* Python Interface *
* *
* Copyright (c) 1999-2025, Ben Burton *
* For further details contact Ben Burton (bab@debian.org). *
* *
* 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 2 of the *
* License, or (at your option) any later version. *
* *
* As an exception, when this program is distributed through (i) the *
* App Store by Apple Inc.; (ii) the Mac App Store by Apple Inc.; or *
* (iii) Google Play by Google Inc., then that store may impose any *
* digital rights management, device limits and/or redistribution *
* restrictions that are required by its terms of service. *
* *
* 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 <https://www.gnu.org/licenses/>. *
* *
**************************************************************************/
#include <pybind11/pybind11.h>
#include "utilities/base64.h"
#include "../helpers/docstrings.h"
#include "../docstrings/utilities/base64.h"
void addBase64(pybind11::module_& m) {
RDOC_SCOPE_BEGIN_MAIN
m.def("base64Length", regina::base64Length, rdoc::base64Length);
m.def("isBase64", regina::isBase64, rdoc::isBase64);
m.attr("base64Table") = regina::base64Table;
m.attr("base64Spare") = regina::base64Spare;
m.def("base64Encode", [](pybind11::bytes b) {
char* in = nullptr;
Py_ssize_t inlen = 0;
// The macro PYBIND11_BYTES_AS_STRING_AND_SIZE calls either
// PyBytes_AsStringAndSize or PyString_AsStringAndSize,
// according to whether are using Python 3 or 2 respectively.
if (PYBIND11_BYTES_AS_STRING_AND_SIZE(b.ptr(), &in, &inlen)) {
// pybind11_fail throws a std::runtime_error.
// We use this for consistency with other parts of pybind11
// that work directly with the Python C API.
pybind11::pybind11_fail(
"Unable to extract Python bytes contents in base64Encode()");
}
size_t outlen = regina::base64Length(inlen);
char* out = new char[outlen + 1];
regina::base64Encode(in, inlen, out, outlen);
pybind11::str ans(out, outlen);
delete[] out;
return ans;
}, pybind11::arg("input_bytes"), rdoc::base64Encode_2);
m.def("base64Decode", [](const std::string& s) -> pybind11::object {
char* out;
size_t outlen;
if (regina::base64Decode(s.c_str(), s.size(), &out, &outlen)) {
pybind11::bytes ans(out, outlen);
delete[] out;
return std::move(ans);
} else {
return pybind11::none();
}
}, pybind11::arg("input_string"), rdoc::base64Decode_2);
RDOC_SCOPE_END
}
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