mirror of https://github.com/python/cpython
898 lines
24 KiB
C
898 lines
24 KiB
C
/* ------------------------------------------------------------------------
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unicodedata -- Provides access to the Unicode 3.2 data base.
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Data was extracted from the Unicode 3.2 UnicodeData.txt file.
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Written by Marc-Andre Lemburg (mal@lemburg.com).
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Modified for Python 2.0 by Fredrik Lundh (fredrik@pythonware.com)
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Modified by Martin v. Löwis (martin@v.loewis.de)
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Copyright (c) Corporation for National Research Initiatives.
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------------------------------------------------------------------------ */
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#include "Python.h"
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#include "ucnhash.h"
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/* character properties */
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typedef struct {
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const unsigned char category; /* index into
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_PyUnicode_CategoryNames */
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const unsigned char combining; /* combining class value 0 - 255 */
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const unsigned char bidirectional; /* index into
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_PyUnicode_BidirectionalNames */
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const unsigned char mirrored; /* true if mirrored in bidir mode */
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} _PyUnicode_DatabaseRecord;
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/* data file generated by Tools/unicode/makeunicodedata.py */
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#include "unicodedata_db.h"
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static const _PyUnicode_DatabaseRecord*
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_getrecord_ex(Py_UCS4 code)
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{
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int index;
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if (code >= 0x110000)
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index = 0;
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else {
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index = index1[(code>>SHIFT)];
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index = index2[(index<<SHIFT)+(code&((1<<SHIFT)-1))];
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}
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return &_PyUnicode_Database_Records[index];
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}
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static const _PyUnicode_DatabaseRecord*
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_getrecord(PyUnicodeObject* v)
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{
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return _getrecord_ex(*PyUnicode_AS_UNICODE(v));
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}
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/* --- Module API --------------------------------------------------------- */
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static PyObject *
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unicodedata_decimal(PyObject *self, PyObject *args)
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{
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PyUnicodeObject *v;
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PyObject *defobj = NULL;
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long rc;
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if (!PyArg_ParseTuple(args, "O!|O:decimal", &PyUnicode_Type, &v, &defobj))
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return NULL;
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if (PyUnicode_GET_SIZE(v) != 1) {
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PyErr_SetString(PyExc_TypeError,
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"need a single Unicode character as parameter");
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return NULL;
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}
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rc = Py_UNICODE_TODECIMAL(*PyUnicode_AS_UNICODE(v));
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if (rc < 0) {
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if (defobj == NULL) {
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PyErr_SetString(PyExc_ValueError,
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"not a decimal");
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return NULL;
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}
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else {
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Py_INCREF(defobj);
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return defobj;
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}
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}
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return PyInt_FromLong(rc);
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}
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static PyObject *
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unicodedata_digit(PyObject *self, PyObject *args)
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{
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PyUnicodeObject *v;
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PyObject *defobj = NULL;
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long rc;
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if (!PyArg_ParseTuple(args, "O!|O:digit", &PyUnicode_Type, &v, &defobj))
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return NULL;
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if (PyUnicode_GET_SIZE(v) != 1) {
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PyErr_SetString(PyExc_TypeError,
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"need a single Unicode character as parameter");
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return NULL;
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}
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rc = Py_UNICODE_TODIGIT(*PyUnicode_AS_UNICODE(v));
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if (rc < 0) {
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if (defobj == NULL) {
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PyErr_SetString(PyExc_ValueError, "not a digit");
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return NULL;
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}
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else {
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Py_INCREF(defobj);
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return defobj;
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}
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}
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return PyInt_FromLong(rc);
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}
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static PyObject *
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unicodedata_numeric(PyObject *self, PyObject *args)
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{
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PyUnicodeObject *v;
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PyObject *defobj = NULL;
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double rc;
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if (!PyArg_ParseTuple(args, "O!|O:numeric", &PyUnicode_Type, &v, &defobj))
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return NULL;
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if (PyUnicode_GET_SIZE(v) != 1) {
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PyErr_SetString(PyExc_TypeError,
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"need a single Unicode character as parameter");
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return NULL;
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}
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rc = Py_UNICODE_TONUMERIC(*PyUnicode_AS_UNICODE(v));
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if (rc < 0) {
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if (defobj == NULL) {
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PyErr_SetString(PyExc_ValueError, "not a numeric character");
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return NULL;
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}
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else {
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Py_INCREF(defobj);
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return defobj;
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}
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}
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return PyFloat_FromDouble(rc);
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}
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static PyObject *
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unicodedata_category(PyObject *self, PyObject *args)
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{
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PyUnicodeObject *v;
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int index;
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if (!PyArg_ParseTuple(args, "O!:category",
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&PyUnicode_Type, &v))
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return NULL;
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if (PyUnicode_GET_SIZE(v) != 1) {
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PyErr_SetString(PyExc_TypeError,
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"need a single Unicode character as parameter");
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return NULL;
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}
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index = (int) _getrecord(v)->category;
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return PyString_FromString(_PyUnicode_CategoryNames[index]);
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}
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static PyObject *
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unicodedata_bidirectional(PyObject *self, PyObject *args)
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{
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PyUnicodeObject *v;
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int index;
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if (!PyArg_ParseTuple(args, "O!:bidirectional",
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&PyUnicode_Type, &v))
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return NULL;
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if (PyUnicode_GET_SIZE(v) != 1) {
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PyErr_SetString(PyExc_TypeError,
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"need a single Unicode character as parameter");
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return NULL;
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}
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index = (int) _getrecord(v)->bidirectional;
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return PyString_FromString(_PyUnicode_BidirectionalNames[index]);
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}
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static PyObject *
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unicodedata_combining(PyObject *self, PyObject *args)
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{
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PyUnicodeObject *v;
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if (!PyArg_ParseTuple(args, "O!:combining",
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&PyUnicode_Type, &v))
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return NULL;
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if (PyUnicode_GET_SIZE(v) != 1) {
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PyErr_SetString(PyExc_TypeError,
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"need a single Unicode character as parameter");
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return NULL;
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}
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return PyInt_FromLong((int) _getrecord(v)->combining);
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}
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static PyObject *
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unicodedata_mirrored(PyObject *self, PyObject *args)
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{
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PyUnicodeObject *v;
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if (!PyArg_ParseTuple(args, "O!:mirrored",
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&PyUnicode_Type, &v))
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return NULL;
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if (PyUnicode_GET_SIZE(v) != 1) {
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PyErr_SetString(PyExc_TypeError,
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"need a single Unicode character as parameter");
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return NULL;
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}
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return PyInt_FromLong((int) _getrecord(v)->mirrored);
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}
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static PyObject *
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unicodedata_decomposition(PyObject *self, PyObject *args)
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{
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PyUnicodeObject *v;
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char decomp[256];
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int code, index, count, i;
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if (!PyArg_ParseTuple(args, "O!:decomposition",
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&PyUnicode_Type, &v))
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return NULL;
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if (PyUnicode_GET_SIZE(v) != 1) {
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PyErr_SetString(PyExc_TypeError,
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"need a single Unicode character as parameter");
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return NULL;
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}
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code = (int) *PyUnicode_AS_UNICODE(v);
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if (code < 0 || code >= 0x110000)
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index = 0;
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else {
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index = decomp_index1[(code>>DECOMP_SHIFT)];
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index = decomp_index2[(index<<DECOMP_SHIFT)+
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(code&((1<<DECOMP_SHIFT)-1))];
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}
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/* high byte is number of hex bytes (usually one or two), low byte
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is prefix code (from*/
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count = decomp_data[index] >> 8;
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/* XXX: could allocate the PyString up front instead
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(strlen(prefix) + 5 * count + 1 bytes) */
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/* copy prefix */
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i = strlen(decomp_prefix[decomp_data[index] & 255]);
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memcpy(decomp, decomp_prefix[decomp_data[index] & 255], i);
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while (count-- > 0) {
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if (i)
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decomp[i++] = ' ';
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assert((size_t)i < sizeof(decomp));
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PyOS_snprintf(decomp + i, sizeof(decomp) - i, "%04X",
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decomp_data[++index]);
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i += strlen(decomp + i);
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}
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decomp[i] = '\0';
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return PyString_FromString(decomp);
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}
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void
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get_decomp_record(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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}
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else {
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*index = decomp_index1[(code>>DECOMP_SHIFT)];
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*index = decomp_index2[(*index<<DECOMP_SHIFT)+
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(code&((1<<DECOMP_SHIFT)-1))];
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}
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/* high byte is number of hex bytes (usually one or two), low byte
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is prefix code (from*/
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*count = decomp_data[*index] >> 8;
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*prefix = decomp_data[*index] & 255;
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(*index)++;
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}
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#define SBase 0xAC00
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#define LBase 0x1100
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#define VBase 0x1161
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#define TBase 0x11A7
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#define LCount 19
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#define VCount 21
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#define TCount 28
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#define NCount (VCount*TCount)
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#define SCount (LCount*NCount)
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static PyObject*
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nfd_nfkd(PyObject *input, int k)
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{
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PyObject *result;
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Py_UNICODE *i, *end, *o;
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/* Longest decomposition in Unicode 3.2: U+FDFA */
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Py_UNICODE stack[20];
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int space, stackptr, isize;
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int index, prefix, count;
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unsigned char prev, cur;
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stackptr = 0;
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isize = PyUnicode_GET_SIZE(input);
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/* Overallocate atmost 10 characters. */
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space = (isize > 10 ? 10 : isize) + isize;
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result = PyUnicode_FromUnicode(NULL, space);
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if (!result)
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return NULL;
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i = PyUnicode_AS_UNICODE(input);
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end = i + isize;
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o = PyUnicode_AS_UNICODE(result);
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while (i < end) {
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stack[stackptr++] = *i++;
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while(stackptr) {
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Py_UNICODE code = stack[--stackptr];
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if (!space) {
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space = PyString_GET_SIZE(result) + 10;
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if (PyUnicode_Resize(&result, space) == -1)
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return NULL;
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o = PyUnicode_AS_UNICODE(result) + space - 10;
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space = 10;
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}
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/* Hangul Decomposition. */
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if (SBase <= code && code < (SBase+SCount)) {
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int SIndex = code - SBase;
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int L = LBase + SIndex / NCount;
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int V = VBase + (SIndex % NCount) / TCount;
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int T = TBase + SIndex % TCount;
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*o++ = L;
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*o++ = V;
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space -= 2;
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if (T != TBase) {
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*o++ = T;
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space --;
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}
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continue;
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}
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/* Other decompoistions. */
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get_decomp_record(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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if (!count || (prefix && !k)) {
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*o++ = code;
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space--;
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continue;
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}
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/* Copy decomposition onto the stack, in reverse
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order. */
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while(count) {
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code = decomp_data[index + (--count)];
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stack[stackptr++] = code;
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}
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}
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}
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/* Drop overallocation. Cannot fail. */
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PyUnicode_Resize(&result, PyUnicode_GET_SIZE(result) - space);
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/* Sort canonically. */
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i = PyUnicode_AS_UNICODE(result);
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prev = _getrecord_ex(*i)->combining;
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end = i + PyUnicode_GET_SIZE(result);
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for (i++; i < end; i++) {
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cur = _getrecord_ex(*i)->combining;
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if (prev == 0 || cur == 0 || prev <= cur) {
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prev = cur;
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continue;
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}
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/* Non-canonical order. Need to switch *i with previous. */
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o = i - 1;
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while (1) {
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Py_UNICODE tmp = o[1];
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o[1] = o[0];
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o[0] = tmp;
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o--;
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if (o < PyUnicode_AS_UNICODE(result))
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break;
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prev = _getrecord_ex(*o)->combining;
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if (prev == 0 || prev <= cur)
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break;
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}
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prev = _getrecord_ex(*i)->combining;
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}
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return result;
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}
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static int
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find_nfc_index(struct reindex* nfc, Py_UNICODE code)
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{
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int index;
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for (index = 0; nfc[index].start; index++) {
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int start = nfc[index].start;
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if (code < start)
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return -1;
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if (code <= start + nfc[index].count) {
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int delta = code - start;
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return nfc[index].index + delta;
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}
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}
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return -1;
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}
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static PyObject*
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nfc_nfkc(PyObject *input, int k)
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{
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PyObject *result;
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Py_UNICODE *i, *i1, *o, *end;
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int f,l,index,index1,comb;
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Py_UNICODE code;
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Py_UNICODE *skipped[20];
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int cskipped = 0;
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result = nfd_nfkd(input, k);
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if (!result)
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return NULL;
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/* We are going to modify result in-place.
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If nfd_nfkd is changed to sometimes return the input,
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this code needs to be reviewed. */
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assert(result != input);
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i = PyUnicode_AS_UNICODE(result);
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end = i + PyUnicode_GET_SIZE(result);
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o = PyUnicode_AS_UNICODE(result);
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again:
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while (i < end) {
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for (index = 0; index < cskipped; index++) {
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if (skipped[index] == i) {
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/* *i character is skipped.
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Remove from list. */
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skipped[index] = skipped[cskipped-1];
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cskipped--;
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i++;
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goto again; /* continue while */
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}
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}
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/* Hangul Composition. We don't need to check for <LV,T>
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pairs, since we always have decomposed data. */
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if (LBase <= *i && *i < (LBase+LCount) &&
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i + 1 < end &&
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VBase <= i[1] && i[1] <= (VBase+VCount)) {
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int LIndex, VIndex;
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LIndex = i[0] - LBase;
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VIndex = i[1] - VBase;
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code = SBase + (LIndex*VCount+VIndex)*TCount;
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i+=2;
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if (i < end &&
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TBase <= *i && *i <= (TBase+TCount)) {
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code += *i-TBase;
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i++;
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}
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*o++ = code;
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continue;
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}
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f = find_nfc_index(nfc_first, *i);
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if (f == -1) {
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*o++ = *i++;
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continue;
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}
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/* Find next unblocked character. */
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i1 = i+1;
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comb = 0;
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while (i1 < end) {
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int comb1 = _getrecord_ex(*i1)->combining;
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if (comb1 && comb == comb1) {
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/* Character is blocked. */
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i1++;
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continue;
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}
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l = find_nfc_index(nfc_last, *i1);
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/* *i1 cannot be combined with *i. If *i1
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is a starter, we don't need to look further.
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Otherwise, record the combining class. */
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if (l == -1) {
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not_combinable:
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if (comb1 == 0)
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break;
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comb = comb1;
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i1++;
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continue;
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}
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index = f*TOTAL_LAST + l;
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index1 = comp_index[index >> COMP_SHIFT];
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code = comp_data[(index1<<COMP_SHIFT)+
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(index&((1<<COMP_SHIFT)-1))];
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if (code == 0)
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goto not_combinable;
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/* Replace the original character. */
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*i = code;
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/* Mark the second character unused. */
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skipped[cskipped++] = i1;
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i1++;
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f = find_nfc_index(nfc_first, *i);
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if (f == -1)
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break;
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}
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*o++ = *i++;
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}
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if (o != end)
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PyUnicode_Resize(&result, o - PyUnicode_AS_UNICODE(result));
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return result;
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}
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static PyObject*
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unicodedata_normalize(PyObject *self, PyObject *args)
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{
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char *form;
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PyObject *input;
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if(!PyArg_ParseTuple(args, "sO!:normalized",
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&form, &PyUnicode_Type, &input))
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return NULL;
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if (strcmp(form, "NFC") == 0)
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return nfc_nfkc(input, 0);
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if (strcmp(form, "NFKC") == 0)
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return nfc_nfkc(input, 1);
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if (strcmp(form, "NFD") == 0)
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return nfd_nfkd(input, 0);
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if (strcmp(form, "NFKD") == 0)
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return nfd_nfkd(input, 1);
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PyErr_SetString(PyExc_ValueError, "invalid normalization form");
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return NULL;
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}
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/* -------------------------------------------------------------------- */
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/* unicode character name tables */
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/* data file generated by Tools/unicode/makeunicodedata.py */
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#include "unicodename_db.h"
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/* -------------------------------------------------------------------- */
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/* database code (cut and pasted from the unidb package) */
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static unsigned long
|
|
_gethash(const char *s, int len, int scale)
|
|
{
|
|
int i;
|
|
unsigned long h = 0;
|
|
unsigned long ix;
|
|
for (i = 0; i < len; i++) {
|
|
h = (h * scale) + (unsigned char) toupper(s[i]);
|
|
ix = h & 0xff000000;
|
|
if (ix)
|
|
h = (h ^ ((ix>>24) & 0xff)) & 0x00ffffff;
|
|
}
|
|
return h;
|
|
}
|
|
|
|
static char *hangul_syllables[][3] = {
|
|
{ "G", "A", "" },
|
|
{ "GG", "AE", "G" },
|
|
{ "N", "YA", "GG" },
|
|
{ "D", "YAE", "GS" },
|
|
{ "DD", "EO", "N", },
|
|
{ "R", "E", "NJ" },
|
|
{ "M", "YEO", "NH" },
|
|
{ "B", "YE", "D" },
|
|
{ "BB", "O", "L" },
|
|
{ "S", "WA", "LG" },
|
|
{ "SS", "WAE", "LM" },
|
|
{ "", "OE", "LB" },
|
|
{ "J", "YO", "LS" },
|
|
{ "JJ", "U", "LT" },
|
|
{ "C", "WEO", "LP" },
|
|
{ "K", "WE", "LH" },
|
|
{ "T", "WI", "M" },
|
|
{ "P", "YU", "B" },
|
|
{ "H", "EU", "BS" },
|
|
{ 0, "YI", "S" },
|
|
{ 0, "I", "SS" },
|
|
{ 0, 0, "NG" },
|
|
{ 0, 0, "J" },
|
|
{ 0, 0, "C" },
|
|
{ 0, 0, "K" },
|
|
{ 0, 0, "T" },
|
|
{ 0, 0, "P" },
|
|
{ 0, 0, "H" }
|
|
};
|
|
|
|
static int
|
|
is_unified_ideograph(Py_UCS4 code)
|
|
{
|
|
return (
|
|
(0x3400 <= code && code <= 0x4DB5) || /* CJK Ideograph Extension A */
|
|
(0x4E00 <= code && code <= 0x9FA5) || /* CJK Ideograph */
|
|
(0x20000 <= code && code <= 0x2A6D6));/* CJK Ideograph Extension B */
|
|
}
|
|
|
|
static int
|
|
_getucname(Py_UCS4 code, char* buffer, int buflen)
|
|
{
|
|
int offset;
|
|
int i;
|
|
int word;
|
|
unsigned char* w;
|
|
|
|
if (SBase <= code && code < SBase+SCount) {
|
|
/* Hangul syllable. */
|
|
int SIndex = code - SBase;
|
|
int L = SIndex / NCount;
|
|
int V = (SIndex % NCount) / TCount;
|
|
int T = SIndex % TCount;
|
|
|
|
if (buflen < 27)
|
|
/* Worst case: HANGUL SYLLABLE <10chars>. */
|
|
return 0;
|
|
strcpy(buffer, "HANGUL SYLLABLE ");
|
|
buffer += 16;
|
|
strcpy(buffer, hangul_syllables[L][0]);
|
|
buffer += strlen(hangul_syllables[L][0]);
|
|
strcpy(buffer, hangul_syllables[V][1]);
|
|
buffer += strlen(hangul_syllables[V][1]);
|
|
strcpy(buffer, hangul_syllables[T][2]);
|
|
buffer += strlen(hangul_syllables[T][2]);
|
|
*buffer = '\0';
|
|
return 1;
|
|
}
|
|
|
|
if (is_unified_ideograph(code)) {
|
|
if (buflen < 28)
|
|
/* Worst case: CJK UNIFIED IDEOGRAPH-20000 */
|
|
return 0;
|
|
sprintf(buffer, "CJK UNIFIED IDEOGRAPH-%X", code);
|
|
return 1;
|
|
}
|
|
|
|
if (code >= 0x110000)
|
|
return 0;
|
|
|
|
/* get offset into phrasebook */
|
|
offset = phrasebook_offset1[(code>>phrasebook_shift)];
|
|
offset = phrasebook_offset2[(offset<<phrasebook_shift) +
|
|
(code&((1<<phrasebook_shift)-1))];
|
|
if (!offset)
|
|
return 0;
|
|
|
|
i = 0;
|
|
|
|
for (;;) {
|
|
/* get word index */
|
|
word = phrasebook[offset] - phrasebook_short;
|
|
if (word >= 0) {
|
|
word = (word << 8) + phrasebook[offset+1];
|
|
offset += 2;
|
|
} else
|
|
word = phrasebook[offset++];
|
|
if (i) {
|
|
if (i > buflen)
|
|
return 0; /* buffer overflow */
|
|
buffer[i++] = ' ';
|
|
}
|
|
/* copy word string from lexicon. the last character in the
|
|
word has bit 7 set. the last word in a string ends with
|
|
0x80 */
|
|
w = lexicon + lexicon_offset[word];
|
|
while (*w < 128) {
|
|
if (i >= buflen)
|
|
return 0; /* buffer overflow */
|
|
buffer[i++] = *w++;
|
|
}
|
|
if (i >= buflen)
|
|
return 0; /* buffer overflow */
|
|
buffer[i++] = *w & 127;
|
|
if (*w == 128)
|
|
break; /* end of word */
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
_cmpname(int code, const char* name, int namelen)
|
|
{
|
|
/* check if code corresponds to the given name */
|
|
int i;
|
|
char buffer[NAME_MAXLEN];
|
|
if (!_getucname(code, buffer, sizeof(buffer)))
|
|
return 0;
|
|
for (i = 0; i < namelen; i++) {
|
|
if (toupper(name[i]) != buffer[i])
|
|
return 0;
|
|
}
|
|
return buffer[namelen] == '\0';
|
|
}
|
|
|
|
static void
|
|
find_syllable(const char *str, int *len, int *pos, int count, int column)
|
|
{
|
|
int i, len1;
|
|
*len = -1;
|
|
for (i = 0; i < count; i++) {
|
|
char *s = hangul_syllables[i][column];
|
|
len1 = strlen(s);
|
|
if (len1 <= *len)
|
|
continue;
|
|
if (strncmp(str, s, len1) == 0) {
|
|
*len = len1;
|
|
*pos = i;
|
|
}
|
|
}
|
|
if (*len == -1) {
|
|
*len = 0;
|
|
*pos = -1;
|
|
}
|
|
}
|
|
|
|
static int
|
|
_getcode(const char* name, int namelen, Py_UCS4* code)
|
|
{
|
|
unsigned int h, v;
|
|
unsigned int mask = code_size-1;
|
|
unsigned int i, incr;
|
|
|
|
/* Check for hangul syllables. */
|
|
if (strncmp(name, "HANGUL SYLLABLE ", 16) == 0) {
|
|
int L, V, T, len;
|
|
const char *pos = name + 16;
|
|
find_syllable(pos, &len, &L, LCount, 0);
|
|
pos += len;
|
|
find_syllable(pos, &len, &V, VCount, 1);
|
|
pos += len;
|
|
find_syllable(pos, &len, &T, TCount, 2);
|
|
pos += len;
|
|
if (V != -1 && V != -1 && T != -1 && pos-name == namelen) {
|
|
*code = SBase + (L*VCount+V)*TCount + T;
|
|
return 1;
|
|
}
|
|
/* Otherwise, it's an illegal syllable name. */
|
|
return 0;
|
|
}
|
|
|
|
/* Check for unified ideographs. */
|
|
if (strncmp(name, "CJK UNIFIED IDEOGRAPH-", 22) == 0) {
|
|
/* Four or five hexdigits must follow. */
|
|
v = 0;
|
|
name += 22;
|
|
namelen -= 22;
|
|
if (namelen != 4 && namelen != 5)
|
|
return 0;
|
|
while (namelen--) {
|
|
v *= 16;
|
|
if (*name >= '0' && *name <= '9')
|
|
v += *name - '0';
|
|
else if (*name >= 'A' && *name <= 'F')
|
|
v += *name - 'A' + 10;
|
|
else
|
|
return 0;
|
|
name++;
|
|
}
|
|
if (!is_unified_ideograph(v))
|
|
return 0;
|
|
*code = v;
|
|
return 1;
|
|
}
|
|
|
|
/* the following is the same as python's dictionary lookup, with
|
|
only minor changes. see the makeunicodedata script for more
|
|
details */
|
|
|
|
h = (unsigned int) _gethash(name, namelen, code_magic);
|
|
i = (~h) & mask;
|
|
v = code_hash[i];
|
|
if (!v)
|
|
return 0;
|
|
if (_cmpname(v, name, namelen)) {
|
|
*code = v;
|
|
return 1;
|
|
}
|
|
incr = (h ^ (h >> 3)) & mask;
|
|
if (!incr)
|
|
incr = mask;
|
|
for (;;) {
|
|
i = (i + incr) & mask;
|
|
v = code_hash[i];
|
|
if (!v)
|
|
return 0;
|
|
if (_cmpname(v, name, namelen)) {
|
|
*code = v;
|
|
return 1;
|
|
}
|
|
incr = incr << 1;
|
|
if (incr > mask)
|
|
incr = incr ^ code_poly;
|
|
}
|
|
}
|
|
|
|
static const _PyUnicode_Name_CAPI hashAPI =
|
|
{
|
|
sizeof(_PyUnicode_Name_CAPI),
|
|
_getucname,
|
|
_getcode
|
|
};
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/* Python bindings */
|
|
|
|
static PyObject *
|
|
unicodedata_name(PyObject* self, PyObject* args)
|
|
{
|
|
char name[NAME_MAXLEN];
|
|
|
|
PyUnicodeObject* v;
|
|
PyObject* defobj = NULL;
|
|
if (!PyArg_ParseTuple(args, "O!|O:name", &PyUnicode_Type, &v, &defobj))
|
|
return NULL;
|
|
|
|
if (PyUnicode_GET_SIZE(v) != 1) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"need a single Unicode character as parameter");
|
|
return NULL;
|
|
}
|
|
|
|
if (!_getucname((Py_UCS4) *PyUnicode_AS_UNICODE(v),
|
|
name, sizeof(name))) {
|
|
if (defobj == NULL) {
|
|
PyErr_SetString(PyExc_ValueError, "no such name");
|
|
return NULL;
|
|
}
|
|
else {
|
|
Py_INCREF(defobj);
|
|
return defobj;
|
|
}
|
|
}
|
|
|
|
return Py_BuildValue("s", name);
|
|
}
|
|
|
|
static PyObject *
|
|
unicodedata_lookup(PyObject* self, PyObject* args)
|
|
{
|
|
Py_UCS4 code;
|
|
Py_UNICODE str[1];
|
|
|
|
char* name;
|
|
int namelen;
|
|
if (!PyArg_ParseTuple(args, "s#:lookup", &name, &namelen))
|
|
return NULL;
|
|
|
|
if (!_getcode(name, namelen, &code)) {
|
|
char fmt[] = "undefined character name '%s'";
|
|
char *buf = PyMem_MALLOC(sizeof(fmt) + namelen);
|
|
sprintf(buf, fmt, name);
|
|
PyErr_SetString(PyExc_KeyError, buf);
|
|
PyMem_FREE(buf);
|
|
return NULL;
|
|
}
|
|
|
|
str[0] = (Py_UNICODE) code;
|
|
return PyUnicode_FromUnicode(str, 1);
|
|
}
|
|
|
|
/* XXX Add doc strings. */
|
|
|
|
static PyMethodDef unicodedata_functions[] = {
|
|
{"decimal", unicodedata_decimal, METH_VARARGS},
|
|
{"digit", unicodedata_digit, METH_VARARGS},
|
|
{"numeric", unicodedata_numeric, METH_VARARGS},
|
|
{"category", unicodedata_category, METH_VARARGS},
|
|
{"bidirectional", unicodedata_bidirectional, METH_VARARGS},
|
|
{"combining", unicodedata_combining, METH_VARARGS},
|
|
{"mirrored", unicodedata_mirrored, METH_VARARGS},
|
|
{"decomposition",unicodedata_decomposition, METH_VARARGS},
|
|
{"name", unicodedata_name, METH_VARARGS},
|
|
{"lookup", unicodedata_lookup, METH_VARARGS},
|
|
{"normalize", unicodedata_normalize, METH_VARARGS},
|
|
{NULL, NULL} /* sentinel */
|
|
};
|
|
|
|
PyDoc_STRVAR(unicodedata_docstring, "unicode character database");
|
|
|
|
PyMODINIT_FUNC
|
|
initunicodedata(void)
|
|
{
|
|
PyObject *m, *v;
|
|
|
|
m = Py_InitModule3(
|
|
"unicodedata", unicodedata_functions, unicodedata_docstring);
|
|
if (!m)
|
|
return;
|
|
|
|
PyModule_AddStringConstant(m, "unidata_version", UNIDATA_VERSION);
|
|
|
|
/* Export C API */
|
|
v = PyCObject_FromVoidPtr((void *) &hashAPI, NULL);
|
|
if (v != NULL)
|
|
PyModule_AddObject(m, "ucnhash_CAPI", v);
|
|
}
|
|
|
|
/*
|
|
Local variables:
|
|
c-basic-offset: 4
|
|
indent-tabs-mode: nil
|
|
End:
|
|
*/
|