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pyexpand.c
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pyexpand.c
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#include <Python.h>
#include <libpostal/libpostal.h>
#include "pyutils.h"
#if PY_MAJOR_VERSION >= 3
#define IS_PY3K
#endif
struct module_state {
PyObject *error;
};
#ifdef IS_PY3K
#define GETSTATE(m) ((struct module_state*)PyModule_GetState(m))
#else
#define GETSTATE(m) (&_state)
static struct module_state _state;
#endif
static PyObject *py_expand(PyObject *self, PyObject *args, PyObject *keywords) {
PyObject *arg_input;
PyObject *arg_languages = Py_None;
libpostal_normalize_options_t options = libpostal_get_default_options();
PyObject *result = NULL;
static char *kwlist[] = {"address",
"languages",
"address_components",
"latin_ascii",
"transliterate",
"strip_accents",
"decompose",
"lowercase",
"trim_string",
"replace_word_hyphens",
"delete_word_hyphens",
"replace_numeric_hyphens",
"delete_numeric_hyphens",
"split_alpha_from_numeric",
"delete_final_periods",
"delete_acronym_periods",
"drop_english_possessives",
"delete_apostrophes",
"expand_numex",
"roman_numerals",
"root",
NULL
};
uint32_t address_components = options.address_components;
uint32_t latin_ascii = options.latin_ascii;
uint32_t transliterate = options.transliterate;
uint32_t strip_accents = options.strip_accents;
uint32_t decompose = options.decompose;
uint32_t lowercase = options.lowercase;
uint32_t trim_string = options.trim_string;
uint32_t replace_word_hyphens = options.replace_word_hyphens;
uint32_t delete_word_hyphens = options.delete_word_hyphens;
uint32_t replace_numeric_hyphens = options.replace_numeric_hyphens;
uint32_t delete_numeric_hyphens = options.delete_numeric_hyphens;
uint32_t split_alpha_from_numeric = options.split_alpha_from_numeric;
uint32_t delete_final_periods = options.delete_final_periods;
uint32_t delete_acronym_periods = options.delete_acronym_periods;
uint32_t drop_english_possessives = options.drop_english_possessives;
uint32_t delete_apostrophes = options.delete_apostrophes;
uint32_t expand_numex = options.expand_numex;
uint32_t roman_numerals = options.roman_numerals;
uint32_t root_expansions = 0;
if (!PyArg_ParseTupleAndKeywords(args, keywords,
"O|OHIIIIIIIIIIIIIIIIII:pyexpand", kwlist,
&arg_input, &arg_languages,
&address_components,
&latin_ascii,
&transliterate,
&strip_accents,
&decompose,
&lowercase,
&trim_string,
&replace_word_hyphens,
&delete_word_hyphens,
&replace_numeric_hyphens,
&delete_numeric_hyphens,
&split_alpha_from_numeric,
&delete_final_periods,
&delete_acronym_periods,
&drop_english_possessives,
&delete_apostrophes,
&expand_numex,
&roman_numerals,
&root_expansions
)) {
return 0;
}
options.address_components = address_components;
options.latin_ascii = latin_ascii;
options.transliterate = transliterate;
options.strip_accents = strip_accents;
options.decompose = decompose;
options.lowercase = lowercase;
options.trim_string = trim_string;
options.replace_word_hyphens = replace_word_hyphens;
options.delete_word_hyphens = delete_word_hyphens;
options.replace_numeric_hyphens = replace_numeric_hyphens;
options.delete_numeric_hyphens = delete_numeric_hyphens;
options.split_alpha_from_numeric = split_alpha_from_numeric;
options.delete_final_periods = delete_final_periods;
options.delete_acronym_periods = delete_acronym_periods;
options.drop_english_possessives = drop_english_possessives;
options.delete_apostrophes = delete_apostrophes;
options.expand_numex = expand_numex;
options.roman_numerals = roman_numerals;
char *input = PyObject_to_string(arg_input);
if (input == NULL) {
return NULL;
}
size_t num_languages = 0;
char **languages = NULL;
if (PySequence_Check(arg_languages)) {
languages = PyObject_to_strings_max_len(arg_languages, LIBPOSTAL_MAX_LANGUAGE_LEN, &num_languages);
}
if (num_languages > 0 && languages != NULL) {
options.num_languages = num_languages;
options.languages = languages;
}
size_t num_expansions = 0;
char **expansions = NULL;
if (!root_expansions) {
expansions = libpostal_expand_address(input, options, &num_expansions);
} else {
expansions = libpostal_expand_address_root(input, options, &num_expansions);
}
if (languages != NULL) {
for (int i = 0; i < num_languages; i++) {
free(languages[i]);
}
free(languages);
}
if (expansions != NULL) {
result = PyObject_from_strings(expansions, num_expansions);
libpostal_expansion_array_destroy(expansions, num_expansions);
}
return result;
}
static PyMethodDef expand_methods[] = {
{"expand_address", (PyCFunction)py_expand, METH_VARARGS | METH_KEYWORDS, "expand_address(text, **kw)"},
{NULL, NULL},
};
#ifdef IS_PY3K
static int expand_traverse(PyObject *m, visitproc visit, void *arg) {
Py_VISIT(GETSTATE(m)->error);
return 0;
}
static int expand_clear(PyObject *m) {
Py_CLEAR(GETSTATE(m)->error);
libpostal_teardown_language_classifier();
libpostal_teardown();
return 0;
}
static struct PyModuleDef module_def = {
PyModuleDef_HEAD_INIT,
"_expand",
NULL,
sizeof(struct module_state),
expand_methods,
NULL,
expand_traverse,
expand_clear,
NULL
};
#define INITERROR return NULL
PyObject *
PyInit__expand(void) {
#else
#define INITERROR return
void cleanup_libpostal(void) {
libpostal_teardown();
libpostal_teardown_language_classifier();
}
void
init_expand(void) {
#endif
#ifdef IS_PY3K
PyObject *module = PyModule_Create(&module_def);
#else
PyObject *module = Py_InitModule("_expand", expand_methods);
#endif
if (module == NULL) {
INITERROR;
}
struct module_state *st = GETSTATE(module);
st->error = PyErr_NewException("_expand.Error", NULL, NULL);
if (st->error == NULL) {
Py_DECREF(module);
INITERROR;
}
char* datadir = getenv("LIBPOSTAL_DATA_DIR");
if ((datadir!=NULL) && (!libpostal_setup_datadir(datadir) || !libpostal_setup_language_classifier_datadir(datadir)) ||
(!libpostal_setup() || !libpostal_setup_language_classifier())) {
PyErr_SetString(PyExc_TypeError,
"Error loading libpostal");
}
PyModule_AddObject(module, "ADDRESS_NONE", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_NONE));
PyModule_AddObject(module, "ADDRESS_ANY", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_ANY));
PyModule_AddObject(module, "ADDRESS_NAME", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_NAME));
PyModule_AddObject(module, "ADDRESS_HOUSE_NUMBER", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_HOUSE_NUMBER));
PyModule_AddObject(module, "ADDRESS_STREET", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_STREET));
PyModule_AddObject(module, "ADDRESS_UNIT", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_UNIT));
PyModule_AddObject(module, "ADDRESS_LEVEL", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_LEVEL));
PyModule_AddObject(module, "ADDRESS_STAIRCASE", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_STAIRCASE));
PyModule_AddObject(module, "ADDRESS_ENTRANCE", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_ENTRANCE));
PyModule_AddObject(module, "ADDRESS_CATEGORY", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_CATEGORY));
PyModule_AddObject(module, "ADDRESS_NEAR", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_NEAR));
PyModule_AddObject(module, "ADDRESS_TOPONYM", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_TOPONYM));
PyModule_AddObject(module, "ADDRESS_POSTAL_CODE", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_POSTAL_CODE));
PyModule_AddObject(module, "ADDRESS_PO_BOX", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_PO_BOX));
PyModule_AddObject(module, "ADDRESS_ALL", PyLong_FromUnsignedLongLong(LIBPOSTAL_ADDRESS_ALL));
#ifndef IS_PY3K
Py_AtExit(&cleanup_libpostal);
#endif
#ifdef IS_PY3K
return module;
#endif
}