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- #ifndef _PY_TERM_OBJ_H
- #define _PY_TERM_OBJ_H
- #define PY_SSIZE_T_CLEAN
- #include <Python.h>
- #include <structmember.h>
- #include "term.h"
- #include "py_namespace.h"
- typedef struct {
- PyObject_HEAD
- LSUP_Term * ob_struct;
- } TermObject;
- static int
- Term_init (TermObject *self, PyObject *args, PyObject *kwargs)
- {
- unsigned char term_type;
- char *data = NULL, *datatype = NULL, *lang = NULL;
- static char *kwlist[] = {"", "", "datatype", "lang", NULL};
- if (!PyArg_ParseTupleAndKeywords (
- args, kwargs, "bs|zz", kwlist,
- &term_type, &data, &datatype, &lang))
- return -1;
- char *metadata = datatype ? datatype : lang;
- self->ob_struct = LSUP_term_new (
- (LSUP_TermType) term_type, data, metadata);
- if (!self->ob_struct) {
- PyErr_SetString (PyExc_ValueError, "Could not create term.");
- return -1;
- }
- return 0;
- }
- static int
- Term_iriref_init (TermObject *self, PyObject *args, PyObject *kwargs)
- {
- char *data = NULL;
- LSUP_NSMap *nsm = NULL;
- static char *kwlist[] = {"data", "nsm", NULL};
- if (!PyArg_ParseTupleAndKeywords (
- args, kwargs, "|sO", kwlist, &data, &nsm))
- return -1;
- if (nsm && !PyObject_TypeCheck (nsm, &NSMapType)) {
- PyErr_SetString (PyExc_TypeError, "nsm is not a NSMap type.");
- return -1;
- }
- // TODO Add nsm parameter.
- self->ob_struct = LSUP_uri_new (data);
- if (!self->ob_struct) {
- PyErr_SetString (PyExc_ValueError, "Could not create term.");
- return -1;
- }
- return 0;
- }
- static int
- Term_literal_init (TermObject *self, PyObject *args, PyObject *kwargs)
- {
- char *data = NULL, *datatype = NULL;
- static char *kwlist[] = {"", "datatype", NULL};
- if (!PyArg_ParseTupleAndKeywords (
- args, kwargs, "s|z", kwlist, &data, &datatype))
- return -1;
- self->ob_struct = LSUP_term_new (LSUP_TERM_LITERAL, data, datatype);
- if (!self->ob_struct) {
- PyErr_SetString (PyExc_ValueError, "Could not create term.");
- return -1;
- }
- return 0;
- }
- static int
- Term_lt_literal_init (TermObject *self, PyObject *args, PyObject *kwargs)
- {
- char *data = NULL, *lang = NULL;
- if (!PyArg_ParseTuple (args, "sz", &data, &lang))
- return -1;
- self->ob_struct = LSUP_term_new (LSUP_TERM_LT_LITERAL, data, lang);
- if (!self->ob_struct) {
- PyErr_SetString (PyExc_ValueError, "Could not create term.");
- return -1;
- }
- return 0;
- }
- static int
- Term_bnode_init (TermObject *self, PyObject *args, PyObject *kwargs)
- {
- char *data;
- static char *kwlist[] = {"data", NULL};
- if (!PyArg_ParseTupleAndKeywords (args, kwargs, "|s", kwlist, &data))
- return -1;
- self->ob_struct = LSUP_term_new (LSUP_TERM_BNODE, data, NULL);
- if (!self->ob_struct) {
- PyErr_SetString (PyExc_ValueError, "Could not create term.");
- return -1;
- }
- return 0;
- }
- static void
- Term_dealloc (TermObject *self)
- {
- LSUP_term_free (self->ob_struct);
- Py_TYPE (self)->tp_free ((PyObject *) self);
- }
- static PyObject *
- Term_get_type (TermObject *self, void *closure)
- {
- PyObject *type = PyLong_FromLong (self->ob_struct->type);
- Py_INCREF (type);
- return type;
- }
- static PyObject *
- Term_get_data (TermObject *self, void *closure)
- {
- PyObject *data = PyUnicode_FromString (self->ob_struct->data);
- Py_INCREF (data);
- return data;
- }
- static PyObject *
- Term_get_datatype (TermObject *self, void *closure)
- {
- if (!self->ob_struct->datatype) Py_RETURN_NONE;
- const LSUP_Term *dtype = LSUP_tcache_get (self->ob_struct->datatype);
- if (!dtype) Py_RETURN_NONE;
- PyObject *datatype = PyUnicode_FromString (dtype->data);
- Py_INCREF (datatype);
- return datatype;
- }
- /*
- * This is the same value for all language-tagged literals.
- */
- static PyObject *
- LTLiteral_get_datatype (TermObject *self, void *closure)
- {
- const LSUP_Term *dtype = LSUP_default_datatype;
- PyObject *datatype = PyUnicode_FromString (dtype->data);
- Py_INCREF (datatype);
- return datatype;
- }
- static PyObject *
- Term_get_lang (TermObject *self, void *closure)
- {
- if (
- !self->ob_struct->datatype || !self->ob_struct->lang ||
- strlen (self->ob_struct->lang) == 0)
- Py_RETURN_NONE;
- PyObject *lang = PyUnicode_FromString (self->ob_struct->lang);
- Py_INCREF (lang);
- return lang;
- }
- static PyGetSetDef Term_getsetters[] = {
- {"_type", (getter) Term_get_type, NULL, "Term type.", NULL},
- {"_data", (getter) Term_get_data, NULL, "Term data.", NULL},
- {
- "_datatype", (getter) Term_get_datatype,
- NULL, "Literal term data type.", NULL
- },
- {
- "_lang", (getter) Term_get_lang,
- NULL, "Literal term language tag.", NULL
- },
- {NULL}
- };
- static PyGetSetDef IRIRef_getsetters[] = {
- {"data", (getter) Term_get_data, NULL, "IRI string.", NULL},
- {NULL}
- };
- static PyGetSetDef Literal_getsetters[] = {
- {"data", (getter) Term_get_data, NULL, "Literal data.", NULL},
- {
- "datatype", (getter) Term_get_datatype,
- NULL, "Data type.", NULL
- },
- {NULL}
- };
- static PyGetSetDef LTLiteral_getsetters[] = {
- {"data", (getter) Term_get_data, NULL, "Literal data.", NULL},
- {
- "datatype", (getter) LTLiteral_get_datatype,
- NULL, "Data type.", NULL
- },
- {
- "lang", (getter) Term_get_lang,
- NULL, "Language tag.", NULL
- },
- {NULL}
- };
- static PyGetSetDef BNode_getsetters[] = {
- {"data", (getter) Term_get_data, NULL, "Blank node label.", NULL},
- {NULL}
- };
- static PyObject *
- Term_richcmp (PyObject *obj1, PyObject *obj2, int op);
- static Py_hash_t
- Term_hash (PyObject *self)
- { return LSUP_term_hash (((TermObject *)self)->ob_struct); }
- PyTypeObject TermType = {
- PyVarObject_HEAD_INIT(NULL, 0)
- .tp_name = "term.Term",
- .tp_doc = "RDF term",
- .tp_basicsize = sizeof (TermObject),
- .tp_itemsize = 0,
- .tp_flags = Py_TPFLAGS_DEFAULT,
- .tp_new = PyType_GenericNew,
- .tp_init = (initproc) Term_init,
- .tp_dealloc = (destructor) Term_dealloc,
- .tp_getset = Term_getsetters,
- .tp_richcompare = Term_richcmp,
- .tp_hash = Term_hash,
- };
- PyTypeObject IRIRefType = {
- PyVarObject_HEAD_INIT(NULL, 0)
- .tp_name = "term.IRIRef",
- .tp_doc = "RDF IRI reference.",
- .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
- .tp_base = &TermType,
- .tp_init = (initproc) Term_iriref_init,
- .tp_getset = IRIRef_getsetters,
- };
- PyTypeObject LiteralType = {
- PyVarObject_HEAD_INIT(NULL, 0)
- .tp_name = "term.Literal",
- .tp_doc = "RDF Literal.",
- .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
- .tp_base = &TermType,
- .tp_init = (initproc) Term_literal_init,
- .tp_getset = Literal_getsetters,
- };
- PyTypeObject LTLiteralType = {
- PyVarObject_HEAD_INIT(NULL, 0)
- .tp_name = "term.LTLiteral",
- .tp_doc = "RDF language-tagged Literal.",
- .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
- .tp_base = &LiteralType,
- .tp_init = (initproc) Term_lt_literal_init,
- .tp_getset = LTLiteral_getsetters,
- };
- PyTypeObject BNodeType = {
- PyVarObject_HEAD_INIT(NULL, 0)
- .tp_name = "term.BNode",
- .tp_doc = "RDF Blanbk Node.",
- .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
- .tp_base = &TermType,
- .tp_init = (initproc) Term_bnode_init,
- .tp_getset = BNode_getsetters,
- };
- static PyObject *
- Term_richcmp (PyObject *obj1, PyObject *obj2, int op)
- {
- PyObject *result = NULL;
- if (
- ! PyObject_TypeCheck (obj1, &TermType) ||
- ! PyObject_TypeCheck (obj2, &TermType)
- ) return NULL;
- int c = 0;
- LSUP_Term *t1 = ((TermObject *) obj1)->ob_struct;
- LSUP_Term *t2 = ((TermObject *) obj2)->ob_struct;
- switch (op) {
- case Py_LT: result = Py_NotImplemented; break;
- case Py_LE: result = Py_NotImplemented; break;
- case Py_EQ: c = LSUP_term_equals (t1, t2); break;
- case Py_NE: c = ! LSUP_term_equals (t1, t2); break;
- case Py_GT: result = Py_NotImplemented; break;
- case Py_GE: result = Py_NotImplemented; break;
- }
- if (!result) result = c ? Py_True : Py_False;
- Py_INCREF(result);
- return result;
- }
- // END _PY_TERM_OBJ_H
- #endif
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