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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include "csv.hpp"
#include "global.hpp"
#ifdef __ORCUS_PYTHON_CSV
#include "document.hpp"
#include "orcus/orcus_csv.hpp"
#include "orcus/spreadsheet/document.hpp"
#include "orcus/spreadsheet/factory.hpp"
#endif
namespace orcus { namespace python {
#ifdef __ORCUS_PYTHON_CSV
namespace {
py_unique_ptr read_stream_object_from_string(PyObject* args, PyObject* kwargs)
{
static const char* kwlist[] = { "stream", nullptr };
py_unique_ptr ret;
PyObject* file = nullptr;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O", const_cast<char**>(kwlist), &file))
return ret;
if (!file)
{
PyErr_SetString(PyExc_RuntimeError, "Invalid file object has been passed.");
return ret;
}
PyObject* obj_str = nullptr;
if (PyObject_HasAttrString(file, "read"))
{
PyObject* func_read = PyObject_GetAttrString(file, "read"); // new reference
obj_str = PyObject_CallFunction(func_read, nullptr);
Py_XDECREF(func_read);
}
if (!obj_str)
{
if (PyObject_TypeCheck(file, &PyUnicode_Type))
obj_str = PyUnicode_FromObject(file); // new reference
}
if (!obj_str)
{
PyErr_SetString(PyExc_RuntimeError, "failed to extract bytes from this object.");
return ret;
}
ret.reset(obj_str);
return ret;
}
} // anonymous namespace
PyObject* csv_read(PyObject* /*module*/, PyObject* args, PyObject* kwargs)
{
py_unique_ptr str = read_stream_object_from_string(args, kwargs);
if (!str)
return nullptr;
try
{
spreadsheet::range_size_t ss{1048576, 16384};
std::unique_ptr<spreadsheet::document> doc = std::make_unique<spreadsheet::document>(ss);
spreadsheet::import_factory fact(*doc);
orcus_csv app(&fact);
Py_ssize_t n = 0;
const char* p = PyUnicode_AsUTF8AndSize(str.get(), &n);
app.read_stream({p, static_cast<std::string_view::size_type>(n)});
return create_document(std::move(doc));
}
catch (const std::exception& e)
{
set_python_exception(PyExc_RuntimeError, e);
return nullptr;
}
}
#else
PyObject* csv_read(PyObject*, PyObject*, PyObject*)
{
PyErr_SetString(PyExc_RuntimeError, "The csv module is not enabled.");
return nullptr;
}
#endif
}}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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