diff options
Diffstat (limited to 'Python/codecs.c')
| -rw-r--r-- | Python/codecs.c | 50 |
1 files changed, 25 insertions, 25 deletions
diff --git a/Python/codecs.c b/Python/codecs.c index 0f18c27e5f..ade1418720 100644 --- a/Python/codecs.c +++ b/Python/codecs.c @@ -50,6 +50,31 @@ int PyCodec_Register(PyObject *search_function) return -1; } +int +PyCodec_Unregister(PyObject *search_function) +{ + PyInterpreterState *interp = PyInterpreterState_Get(); + PyObject *codec_search_path = interp->codec_search_path; + /* Do nothing if codec_search_path is not created yet or was cleared. */ + if (codec_search_path == NULL) { + return 0; + } + + assert(PyList_CheckExact(codec_search_path)); + Py_ssize_t n = PyList_GET_SIZE(codec_search_path); + for (Py_ssize_t i = 0; i < n; i++) { + PyObject *item = PyList_GET_ITEM(codec_search_path, i); + if (item == search_function) { + if (interp->codec_search_cache != NULL) { + assert(PyDict_CheckExact(interp->codec_search_cache)); + PyDict_Clear(interp->codec_search_cache); + } + return PyList_SetSlice(codec_search_path, i, i+1, NULL); + } + } + return 0; +} + extern int _Py_normalize_encoding(const char *, char *, size_t); /* Convert a string to a normalized Python string(decoded from UTF-8): all characters are @@ -183,31 +208,6 @@ PyObject *_PyCodec_Lookup(const char *encoding) return NULL; } -int _PyCodec_Forget(const char *encoding) -{ - PyObject *v; - int result; - - PyInterpreterState *interp = _PyInterpreterState_GET(); - if (interp->codec_search_path == NULL) { - return -1; - } - - /* Convert the encoding to a normalized Python string: all - characters are converted to lower case, spaces and hyphens are - replaced with underscores. */ - v = normalizestring(encoding); - if (v == NULL) { - return -1; - } - - /* Drop the named codec from the internal cache */ - result = PyDict_DelItem(interp->codec_search_cache, v); - Py_DECREF(v); - - return result; -} - /* Codec registry encoding check API. */ int PyCodec_KnownEncoding(const char *encoding) |