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Added utility function to get bytes from a str/unicode.

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This commit is contained in:
Daniele Varrazzo 2010-12-23 19:10:07 +01:00
parent 03dde732f6
commit b4685bba4a
3 changed files with 29 additions and 0 deletions
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1
psycopg/psycopg.h
View File

@ -121,6 +121,7 @@ HIDDEN char *psycopg_escape_string(PyObject *conn,
const char *from, Py_ssize_t len, char *to, Py_ssize_t *tolen);
HIDDEN char *psycopg_strdup(const char *from, Py_ssize_t len);
HIDDEN PyObject * psycopg_ensure_bytes(PyObject *obj);
/* Exceptions docstrings */
#define Error_doc \

2
psycopg/python.h
View File

@ -106,6 +106,7 @@
/* XXX BytesType -> Bytes_Type */
#define BytesType PyString_Type
#define Bytes_Check PyString_Check
#define Bytes_CheckExact PyString_CheckExact
#define Bytes_AS_STRING PyString_AS_STRING
#define Bytes_GET_SIZE PyString_GET_SIZE
#define Bytes_Size PyString_Size
@ -120,6 +121,7 @@
#define BytesType PyBytes_Type
#define Bytes_Check PyBytes_Check
#define Bytes_CheckExact PyBytes_CheckExact
#define Bytes_AS_STRING PyBytes_AS_STRING
#define Bytes_GET_SIZE PyBytes_GET_SIZE
#define Bytes_Size PyBytes_Size

26
psycopg/utils.c
View File

@ -92,3 +92,29 @@ psycopg_strdup(const char *from, Py_ssize_t len)
return rv;
}
/* Ensure a Python object is a bytes string.
*
* Useful when a char * is required out of it.
*
* Return a new reference. NULL on error.
*/
PyObject *
psycopg_ensure_bytes(PyObject *obj)
{
PyObject *rv = NULL;
if (PyUnicode_CheckExact(obj)) {
rv = PyUnicode_AsUTF8String(obj);
}
else if (Bytes_CheckExact(obj)) {
Py_INCREF(obj);
rv = obj;
}
else {
PyErr_Format(PyExc_TypeError, "I'm not into ensuring %s as bytes",
obj ? Py_TYPE(obj)->tp_name : "NULL");
}
return rv;
}