bpo-1635741: Add a global module state to unicodedata (GH-22712)
Prepare unicodedata to add a state per module: start with a global "module" state, pass it to subfunctions which access &UCD_Type. This change also prepares the conversion of the UCD_Type static type to a heap type.
This commit is contained in:
Victor Stinner
GitHub
parent
644e94272a
commit
e6b8c5263a
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@ -93,22 +93,33 @@ static PyMemberDef DB_members[] = {
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/* forward declaration */
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static PyTypeObject UCD_Type;
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// Check if self is an instance of UCD_Type.
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typedef struct {
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// Borrowed reference to &UCD_Type. It is used to prepare the code
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// to convert the UCD_Type static type to a heap type.
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PyTypeObject *ucd_type;
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} unicodedata_module_state;
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// bpo-1635741: Temporary global state until the unicodedata module
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// gets a real module state.
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static unicodedata_module_state global_module_state;
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// Check if self is an instance of ucd_type.
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// Return 0 if self is NULL (when the PyCapsule C API is used).
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#define UCD_Check(self, ucd_type) (self != NULL && Py_IS_TYPE(self, ucd_type))
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static PyObject*
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new_previous_version(const char*name, const change_record* (*getrecord)(Py_UCS4),
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new_previous_version(unicodedata_module_state *state,
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const char*name, const change_record* (*getrecord)(Py_UCS4),
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Py_UCS4 (*normalization)(Py_UCS4))
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{
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PreviousDBVersion *self;
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self = PyObject_New(PreviousDBVersion, &UCD_Type);
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if (self == NULL)
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return NULL;
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self->name = name;
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self->getrecord = getrecord;
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self->normalization = normalization;
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return (PyObject*)self;
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PreviousDBVersion *self;
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self = PyObject_New(PreviousDBVersion, state->ucd_type);
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if (self == NULL)
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return NULL;
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self->name = name;
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self->getrecord = getrecord;
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self->normalization = normalization;
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return (PyObject*)self;
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}
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@ -134,11 +145,12 @@ unicodedata_UCD_decimal_impl(PyObject *self, int chr,
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PyObject *default_value)
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/*[clinic end generated code: output=be23376e1a185231 input=933f8107993f23d0]*/
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{
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unicodedata_module_state *state = &global_module_state;
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int have_old = 0;
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long rc;
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Py_UCS4 c = (Py_UCS4)chr;
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if (UCD_Check(self, &UCD_Type)) {
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if (UCD_Check(self, state->ucd_type)) {
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const change_record *old = get_old_record(self, c);
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if (old->category_changed == 0) {
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/* unassigned */
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@ -222,11 +234,12 @@ unicodedata_UCD_numeric_impl(PyObject *self, int chr,
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PyObject *default_value)
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/*[clinic end generated code: output=53ce281fe85b10c4 input=fdf5871a5542893c]*/
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{
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unicodedata_module_state *state = &global_module_state;
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int have_old = 0;
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double rc;
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Py_UCS4 c = (Py_UCS4)chr;
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if (UCD_Check(self, &UCD_Type)) {
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if (UCD_Check(self, state->ucd_type)) {
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const change_record *old = get_old_record(self, c);
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if (old->category_changed == 0) {
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/* unassigned */
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@ -268,10 +281,11 @@ static PyObject *
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unicodedata_UCD_category_impl(PyObject *self, int chr)
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/*[clinic end generated code: output=8571539ee2e6783a input=27d6f3d85050bc06]*/
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{
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unicodedata_module_state *state = &global_module_state;
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int index;
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Py_UCS4 c = (Py_UCS4)chr;
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index = (int) _getrecord_ex(c)->category;
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if (UCD_Check(self, &UCD_Type)) {
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if (UCD_Check(self, state->ucd_type)) {
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const change_record *old = get_old_record(self, c);
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if (old->category_changed != 0xFF)
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index = old->category_changed;
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@ -295,10 +309,11 @@ static PyObject *
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unicodedata_UCD_bidirectional_impl(PyObject *self, int chr)
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/*[clinic end generated code: output=d36310ce2039bb92 input=b3d8f42cebfcf475]*/
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{
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unicodedata_module_state *state = &global_module_state;
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int index;
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Py_UCS4 c = (Py_UCS4)chr;
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index = (int) _getrecord_ex(c)->bidirectional;
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if (UCD_Check(self, &UCD_Type)) {
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if (UCD_Check(self, state->ucd_type)) {
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const change_record *old = get_old_record(self, c);
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if (old->category_changed == 0)
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index = 0; /* unassigned */
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@ -324,10 +339,11 @@ static int
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unicodedata_UCD_combining_impl(PyObject *self, int chr)
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/*[clinic end generated code: output=cad056d0cb6a5920 input=9f2d6b2a95d0a22a]*/
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{
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unicodedata_module_state *state = &global_module_state;
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int index;
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Py_UCS4 c = (Py_UCS4)chr;
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index = (int) _getrecord_ex(c)->combining;
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if (UCD_Check(self, &UCD_Type)) {
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if (UCD_Check(self, state->ucd_type)) {
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const change_record *old = get_old_record(self, c);
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if (old->category_changed == 0)
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index = 0; /* unassigned */
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@ -352,10 +368,11 @@ static int
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unicodedata_UCD_mirrored_impl(PyObject *self, int chr)
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/*[clinic end generated code: output=2532dbf8121b50e6 input=5dd400d351ae6f3b]*/
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{
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unicodedata_module_state *state = &global_module_state;
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int index;
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Py_UCS4 c = (Py_UCS4)chr;
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index = (int) _getrecord_ex(c)->mirrored;
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if (UCD_Check(self, &UCD_Type)) {
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if (UCD_Check(self, state->ucd_type)) {
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const change_record *old = get_old_record(self, c);
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if (old->category_changed == 0)
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index = 0; /* unassigned */
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@ -379,10 +396,11 @@ static PyObject *
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unicodedata_UCD_east_asian_width_impl(PyObject *self, int chr)
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/*[clinic end generated code: output=484e8537d9ee8197 input=c4854798aab026e0]*/
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{
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unicodedata_module_state *state = &global_module_state;
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int index;
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Py_UCS4 c = (Py_UCS4)chr;
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index = (int) _getrecord_ex(c)->east_asian_width;
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if (UCD_Check(self, &UCD_Type)) {
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if (UCD_Check(self, state->ucd_type)) {
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const change_record *old = get_old_record(self, c);
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if (old->category_changed == 0)
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index = 0; /* unassigned */
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@ -408,6 +426,7 @@ static PyObject *
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unicodedata_UCD_decomposition_impl(PyObject *self, int chr)
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/*[clinic end generated code: output=7d699f3ec7565d27 input=e4c12459ad68507b]*/
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{
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unicodedata_module_state *state = &global_module_state;
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char decomp[256];
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int code, index, count;
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size_t i;
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@ -416,7 +435,7 @@ unicodedata_UCD_decomposition_impl(PyObject *self, int chr)
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code = (int)c;
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if (UCD_Check(self, &UCD_Type)) {
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if (UCD_Check(self, state->ucd_type)) {
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const change_record *old = get_old_record(self, c);
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if (old->category_changed == 0)
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return PyUnicode_FromString(""); /* unassigned */
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@ -459,11 +478,12 @@ unicodedata_UCD_decomposition_impl(PyObject *self, int chr)
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}
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static void
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get_decomp_record(PyObject *self, Py_UCS4 code, int *index, int *prefix, int *count)
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get_decomp_record(unicodedata_module_state *state, PyObject *self,
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Py_UCS4 code, int *index, int *prefix, int *count)
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{
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if (code >= 0x110000) {
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*index = 0;
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} else if (UCD_Check(self, &UCD_Type) &&
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} else if (UCD_Check(self, state->ucd_type) &&
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get_old_record(self, code)->category_changed==0) {
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/* unassigned in old version */
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*index = 0;
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@ -493,7 +513,8 @@ get_decomp_record(PyObject *self, Py_UCS4 code, int *index, int *prefix, int *co
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#define SCount (LCount*NCount)
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static PyObject*
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nfd_nfkd(PyObject *self, PyObject *input, int k)
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nfd_nfkd(unicodedata_module_state *state, PyObject *self,
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PyObject *input, int k)
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{
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PyObject *result;
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Py_UCS4 *output;
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@ -561,7 +582,7 @@ nfd_nfkd(PyObject *self, PyObject *input, int k)
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continue;
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}
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/* normalization changes */
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if (UCD_Check(self, &UCD_Type)) {
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if (UCD_Check(self, state->ucd_type)) {
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Py_UCS4 value = ((PreviousDBVersion*)self)->normalization(code);
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if (value != 0) {
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stack[stackptr++] = value;
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@ -570,7 +591,7 @@ nfd_nfkd(PyObject *self, PyObject *input, int k)
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}
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/* Other decompositions. */
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get_decomp_record(self, code, &index, &prefix, &count);
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get_decomp_record(state, self, code, &index, &prefix, &count);
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/* Copy character if it is not decomposable, or has a
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compatibility decomposition, but we do NFD. */
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@ -642,7 +663,7 @@ find_nfc_index(const struct reindex* nfc, Py_UCS4 code)
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}
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static PyObject*
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nfc_nfkc(PyObject *self, PyObject *input, int k)
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nfc_nfkc(unicodedata_module_state *state, PyObject *self, PyObject *input, int k)
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{
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PyObject *result;
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int kind;
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@ -654,7 +675,7 @@ nfc_nfkc(PyObject *self, PyObject *input, int k)
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Py_ssize_t skipped[20];
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int cskipped = 0;
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result = nfd_nfkd(self, input, k);
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result = nfd_nfkd(state, self, input, k);
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if (!result)
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return NULL;
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/* result will be "ready". */
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@ -797,12 +818,12 @@ typedef enum {YES = 0, MAYBE = 1, NO = 2} QuickcheckResult;
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* https://www.unicode.org/reports/tr15/#Detecting_Normalization_Forms
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*/
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static QuickcheckResult
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is_normalized_quickcheck(PyObject *self, PyObject *input,
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bool nfc, bool k, bool yes_only)
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is_normalized_quickcheck(unicodedata_module_state *state, PyObject *self,
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PyObject *input, bool nfc, bool k, bool yes_only)
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{
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/* An older version of the database is requested, quickchecks must be
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disabled. */
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if (UCD_Check(self, &UCD_Type))
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if (UCD_Check(self, state->ucd_type))
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return NO;
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Py_ssize_t i, len;
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@ -862,6 +883,7 @@ unicodedata_UCD_is_normalized_impl(PyObject *self, PyObject *form,
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PyObject *input)
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/*[clinic end generated code: output=11e5a3694e723ca5 input=a544f14cea79e508]*/
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{
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unicodedata_module_state *state = &global_module_state;
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if (PyUnicode_READY(input) == -1) {
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return NULL;
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}
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@ -897,10 +919,10 @@ unicodedata_UCD_is_normalized_impl(PyObject *self, PyObject *form,
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return NULL;
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}
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m = is_normalized_quickcheck(self, input, nfc, k, false);
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m = is_normalized_quickcheck(state, self, input, nfc, k, false);
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if (m == MAYBE) {
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cmp = (nfc ? nfc_nfkc : nfd_nfkd)(self, input, k);
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cmp = (nfc ? nfc_nfkc : nfd_nfkd)(state, self, input, k);
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if (cmp == NULL) {
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return NULL;
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}
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@ -935,6 +957,7 @@ unicodedata_UCD_normalize_impl(PyObject *self, PyObject *form,
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PyObject *input)
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/*[clinic end generated code: output=05ca4385a2ad6983 input=3a5206c0ad2833fb]*/
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{
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unicodedata_module_state *state = &global_module_state;
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if (PyUnicode_GET_LENGTH(input) == 0) {
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/* Special case empty input strings, since resizing
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them later would cause internal errors. */
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@ -943,32 +966,36 @@ unicodedata_UCD_normalize_impl(PyObject *self, PyObject *form,
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}
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if (_PyUnicode_EqualToASCIIId(form, &PyId_NFC)) {
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if (is_normalized_quickcheck(self, input, true, false, true) == YES) {
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if (is_normalized_quickcheck(state, self, input,
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true, false, true) == YES) {
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Py_INCREF(input);
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return input;
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}
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return nfc_nfkc(self, input, 0);
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return nfc_nfkc(state, self, input, 0);
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}
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if (_PyUnicode_EqualToASCIIId(form, &PyId_NFKC)) {
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if (is_normalized_quickcheck(self, input, true, true, true) == YES) {
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if (is_normalized_quickcheck(state, self, input,
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true, true, true) == YES) {
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Py_INCREF(input);
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return input;
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}
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return nfc_nfkc(self, input, 1);
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return nfc_nfkc(state, self, input, 1);
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}
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if (_PyUnicode_EqualToASCIIId(form, &PyId_NFD)) {
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if (is_normalized_quickcheck(self, input, false, false, true) == YES) {
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if (is_normalized_quickcheck(state, self, input,
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false, false, true) == YES) {
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Py_INCREF(input);
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return input;
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}
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return nfd_nfkd(self, input, 0);
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return nfd_nfkd(state, self, input, 0);
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}
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if (_PyUnicode_EqualToASCIIId(form, &PyId_NFKD)) {
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if (is_normalized_quickcheck(self, input, false, true, true) == YES) {
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if (is_normalized_quickcheck(state, self, input,
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false, true, true) == YES) {
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Py_INCREF(input);
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return input;
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}
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return nfd_nfkd(self, input, 1);
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return nfd_nfkd(state, self, input, 1);
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}
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PyErr_SetString(PyExc_ValueError, "invalid normalization form");
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return NULL;
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@ -1051,8 +1078,8 @@ is_unified_ideograph(Py_UCS4 code)
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(cp < named_sequences_end))
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static int
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_getucname(PyObject *self, Py_UCS4 code, char* buffer, int buflen,
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int with_alias_and_seq)
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_getucname(unicodedata_module_state *state, PyObject *self,
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Py_UCS4 code, char* buffer, int buflen, int with_alias_and_seq)
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{
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/* Find the name associated with the given code point.
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* If with_alias_and_seq is 1, check for names in the Private Use Area 15
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@ -1069,7 +1096,7 @@ _getucname(PyObject *self, Py_UCS4 code, char* buffer, int buflen,
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if (!with_alias_and_seq && (IS_ALIAS(code) || IS_NAMED_SEQ(code)))
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return 0;
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if (UCD_Check(self, &UCD_Type)) {
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if (UCD_Check(self, state->ucd_type)) {
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/* in 3.2.0 there are no aliases and named sequences */
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const change_record *old;
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if (IS_ALIAS(code) || IS_NAMED_SEQ(code))
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@ -1153,12 +1180,22 @@ _getucname(PyObject *self, Py_UCS4 code, char* buffer, int buflen,
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}
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static int
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_cmpname(PyObject *self, int code, const char* name, int namelen)
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capi_getucname(PyObject *self, Py_UCS4 code, char* buffer, int buflen,
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int with_alias_and_seq)
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{
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unicodedata_module_state *state = &global_module_state;
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return _getucname(state, self, code, buffer, buflen, with_alias_and_seq);
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}
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static int
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_cmpname(unicodedata_module_state *state, PyObject *self,
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int code, const char* name, int namelen)
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{
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/* check if code corresponds to the given name */
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int i;
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char buffer[NAME_MAXLEN+1];
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if (!_getucname(self, code, buffer, NAME_MAXLEN, 1))
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if (!_getucname(state, self, code, buffer, NAME_MAXLEN, 1))
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return 0;
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for (i = 0; i < namelen; i++) {
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if (Py_TOUPPER(name[i]) != buffer[i])
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@ -1203,8 +1240,8 @@ _check_alias_and_seq(unsigned int cp, Py_UCS4* code, int with_named_seq)
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}
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static int
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_getcode(PyObject* self, const char* name, int namelen, Py_UCS4* code,
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int with_named_seq)
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_getcode(unicodedata_module_state *state, PyObject* self,
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const char* name, int namelen, Py_UCS4* code, int with_named_seq)
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{
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/* Return the code point associated with the given name.
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* Named aliases are resolved too (unless self != NULL (i.e. we are using
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@ -1265,8 +1302,9 @@ _getcode(PyObject* self, const char* name, int namelen, Py_UCS4* code,
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v = code_hash[i];
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if (!v)
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return 0;
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if (_cmpname(self, v, name, namelen))
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if (_cmpname(state, self, v, name, namelen)) {
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return _check_alias_and_seq(v, code, with_named_seq);
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}
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incr = (h ^ (h >> 3)) & mask;
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if (!incr)
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incr = mask;
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|
|
@ -1275,19 +1313,29 @@ _getcode(PyObject* self, const char* name, int namelen, Py_UCS4* code,
|
|||
v = code_hash[i];
|
||||
if (!v)
|
||||
return 0;
|
||||
if (_cmpname(self, v, name, namelen))
|
||||
if (_cmpname(state, self, v, name, namelen)) {
|
||||
return _check_alias_and_seq(v, code, with_named_seq);
|
||||
}
|
||||
incr = incr << 1;
|
||||
if (incr > mask)
|
||||
incr = incr ^ code_poly;
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
capi_getcode(PyObject* self, const char* name, int namelen, Py_UCS4* code,
|
||||
int with_named_seq)
|
||||
{
|
||||
unicodedata_module_state *state = &global_module_state;
|
||||
return _getcode(state, self, name, namelen, code, with_named_seq);
|
||||
|
||||
}
|
||||
|
||||
static const _PyUnicode_Name_CAPI hashAPI =
|
||||
{
|
||||
sizeof(_PyUnicode_Name_CAPI),
|
||||
_getucname,
|
||||
_getcode
|
||||
capi_getucname,
|
||||
capi_getcode
|
||||
};
|
||||
|
||||
/* -------------------------------------------------------------------- */
|
||||
|
|
@ -1311,10 +1359,11 @@ static PyObject *
|
|||
unicodedata_UCD_name_impl(PyObject *self, int chr, PyObject *default_value)
|
||||
/*[clinic end generated code: output=6bbb37a326407707 input=3e0367f534de56d9]*/
|
||||
{
|
||||
unicodedata_module_state *state = &global_module_state;
|
||||
char name[NAME_MAXLEN+1];
|
||||
Py_UCS4 c = (Py_UCS4)chr;
|
||||
|
||||
if (!_getucname(self, c, name, NAME_MAXLEN, 0)) {
|
||||
if (!_getucname(state, self, c, name, NAME_MAXLEN, 0)) {
|
||||
if (default_value == NULL) {
|
||||
PyErr_SetString(PyExc_ValueError, "no such name");
|
||||
return NULL;
|
||||
|
|
@ -1346,6 +1395,7 @@ unicodedata_UCD_lookup_impl(PyObject *self, const char *name,
|
|||
Py_ssize_clean_t name_length)
|
||||
/*[clinic end generated code: output=765cb8186788e6be input=a557be0f8607a0d6]*/
|
||||
{
|
||||
unicodedata_module_state *state = &global_module_state;
|
||||
Py_UCS4 code;
|
||||
unsigned int index;
|
||||
if (name_length > NAME_MAXLEN) {
|
||||
|
|
@ -1353,7 +1403,7 @@ unicodedata_UCD_lookup_impl(PyObject *self, const char *name,
|
|||
return NULL;
|
||||
}
|
||||
|
||||
if (!_getcode(self, name, (int)name_length, &code, 1)) {
|
||||
if (!_getcode(state, self, name, (int)name_length, &code, 1)) {
|
||||
PyErr_Format(PyExc_KeyError, "undefined character name '%s'", name);
|
||||
return NULL;
|
||||
}
|
||||
|
|
@ -1458,19 +1508,22 @@ PyMODINIT_FUNC
|
|||
PyInit_unicodedata(void)
|
||||
{
|
||||
PyObject *m, *v;
|
||||
unicodedata_module_state *state = &global_module_state;
|
||||
|
||||
Py_SET_TYPE(&UCD_Type, &PyType_Type);
|
||||
state->ucd_type = &UCD_Type;
|
||||
|
||||
m = PyModule_Create(&unicodedatamodule);
|
||||
if (!m)
|
||||
return NULL;
|
||||
|
||||
PyModule_AddStringConstant(m, "unidata_version", UNIDATA_VERSION);
|
||||
Py_INCREF(&UCD_Type);
|
||||
PyModule_AddObject(m, "UCD", (PyObject*)&UCD_Type);
|
||||
Py_INCREF(state->ucd_type);
|
||||
PyModule_AddObject(m, "UCD", (PyObject*)state->ucd_type);
|
||||
|
||||
/* Previous versions */
|
||||
v = new_previous_version("3.2.0", get_change_3_2_0, normalization_3_2_0);
|
||||
v = new_previous_version(state, "3.2.0",
|
||||
get_change_3_2_0, normalization_3_2_0);
|
||||
if (v != NULL)
|
||||
PyModule_AddObject(m, "ucd_3_2_0", v);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue