mirror of
https://github.com/tfussell/xlnt.git
synced 2024-03-22 13:11:17 +08:00
113 lines
2.6 KiB
C++
113 lines
2.6 KiB
C++
#include <iostream>
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#include <memory>
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#include <vector>
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#include <arrow/api.h>
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#include <Python.h> // must be included after Arrow
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#include <python_streambuf.hpp>
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#include <xlnt/utils/xlntarrow.hpp>
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PyObject *xlsx2arrow(PyObject *file)
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{
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xlnt::arrow::streambuf buffer(file);
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std::istream stream(&buffer);
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std::shared_ptr<arrow::Schema> schema;
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std::vector<std::shared_ptr<arrow::Column>> columns;
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arrow::Table table(schema, columns);
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xlnt::arrow::xlsx2arrow(stream, table);
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Py_RETURN_NONE;
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}
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extern "C" {
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/*
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* Implements XLSX->pyarrow table function.
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*/
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PyDoc_STRVAR(xlntpyarrow_xlsx2arrow_doc, "xlsx2arrow(in_file)\
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\
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Returns an arrow table representing the given XLSX file object.");
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PyObject *xlntpyarrow_xlsx2arrow(PyObject *self, PyObject *args, PyObject *kwargs)
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{
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PyObject *file = NULL;
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static const char *keywords[] = { "file", NULL };
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static auto keywords_nc = const_cast<char **>(keywords);
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if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O", keywords_nc, &file))
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{
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return NULL;
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}
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return xlsx2arrow(file);
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}
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/*
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* Implements pyarrow table->XLSX function.
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*/
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PyDoc_STRVAR(xlntpyarrow_arrow2xlsx_doc, "arrow2xlsx(table, out_file)\
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\
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Writes the given arrow table to out_file as an XLSX file.");
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PyObject *xlntpyarrow_arrow2xlsx(PyObject *self, PyObject *args, PyObject *kwargs)
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{
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PyObject *obj = NULL;
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static const char *keywords[] = { "file", NULL };
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static auto keywords_nc = const_cast<char **>(keywords);
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if (!PyArg_ParseTupleAndKeywords(args, kwargs, "Oi", keywords_nc, &obj))
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{
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return NULL;
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}
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Py_RETURN_NONE;
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}
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// 2.7/3 compatible based on https://docs.python.org/3/howto/cporting.html
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static PyMethodDef xlntpyarrow_methods[] =
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{
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{ "xlsx2arrow", (PyCFunction)xlntpyarrow_xlsx2arrow, METH_VARARGS | METH_KEYWORDS, xlntpyarrow_xlsx2arrow_doc },
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{ "arrow2xlsx", (PyCFunction)xlntpyarrow_arrow2xlsx, METH_VARARGS | METH_KEYWORDS, xlntpyarrow_arrow2xlsx_doc },
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{ NULL, NULL, 0, NULL }
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};
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#if PY_MAJOR_VERSION >= 3
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PyDoc_STRVAR(xlntpyarrow_doc, "The xlntpyarrow module");
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static PyModuleDef xlntpyarrow_def =
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{
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PyModuleDef_HEAD_INIT, // m_base
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"xlntpyarrow", // m_name
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xlntpyarrow_doc, // m_doc
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0, // m_size
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xlntpyarrow_methods, // m_methods
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NULL, // m_slots
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NULL, // m_traverse
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NULL, // m_clear
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NULL, // m_free
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};
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PyMODINIT_FUNC
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PyInit_xlntpyarrow(void)
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#else
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void
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initxlntpyarrow(void)
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#endif
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{
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PyObject *module = NULL;
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#if PY_MAJOR_VERSION >= 3
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module = PyModule_Create(&xlntpyarrow_def);
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return module;
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#else
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module = Py_InitModule("xlntpyarrow", xlntpyarrow_methods);
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return;
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#endif
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}
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} // extern "C"
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