Module unicodedata -- Provides access to the Unicode 3.0 data base.

Written by Marc-Andre Lemburg.

Modules/unicodedata.c

+/* ------------------------------------------------------------------------
+
+   unicodedata -- Provides access to the Unicode 3.0 data base.
+
+   Data was extracted from the Unicode 3.0 UnicodeData.txt file.
+
+Written by Marc-Andre Lemburg (mal@lemburg.com).
+
+(c) Copyright CNRI, All Rights Reserved. NO WARRANTY.
+
+   ------------------------------------------------------------------------ */
+
+#include "Python.h"
+#include "unicodedatabase.h"
+
+/* --- Module API --------------------------------------------------------- */
+
+static PyObject *
+unicodedata_decimal(PyObject *self,
+		    PyObject *args)
+{
+    PyUnicodeObject *v;
+    PyObject *defobj = NULL;
+    long rc;
+
+    if (!PyArg_ParseTuple(args, "O!|O:decimal",
+			  &PyUnicode_Type, &v, &defobj))
+	goto onError;
+    if (PyUnicode_GET_SIZE(v) != 1) {
+	PyErr_SetString(PyExc_TypeError,
+			"need a single Unicode character as parameter");
+	goto onError;
+    }
+    rc = Py_UNICODE_TODECIMAL(*PyUnicode_AS_UNICODE(v));
+    if (rc < 0) {
+	if (defobj == NULL) {
+	    PyErr_SetString(PyExc_ValueError,
+			    "not a decimal");
+	    goto onError;
+	}
+	else {
+	    Py_INCREF(defobj);
+	    return defobj;
+	}
+    }
+    return PyInt_FromLong(rc);
+    
+ onError:
+    return NULL;
+}
+
+static PyObject *
+unicodedata_digit(PyObject *self,
+		  PyObject *args)
+{
+    PyUnicodeObject *v;
+    PyObject *defobj = NULL;
+    long rc;
+
+    if (!PyArg_ParseTuple(args, "O!|O:digit",
+			  &PyUnicode_Type, &v, &defobj))
+	goto onError;
+    if (PyUnicode_GET_SIZE(v) != 1) {
+	PyErr_SetString(PyExc_TypeError,
+			"need a single Unicode character as parameter");
+	goto onError;
+    }
+    rc = Py_UNICODE_TODIGIT(*PyUnicode_AS_UNICODE(v));
+    if (rc < 0) {
+	if (defobj == NULL) {
+	    PyErr_SetString(PyExc_ValueError,
+			    "not a digit");
+	    goto onError;
+	}
+	else {
+	    Py_INCREF(defobj);
+	    return defobj;
+	}
+    }
+    return PyInt_FromLong(rc);
+    
+ onError:
+    return NULL;
+}
+
+static PyObject *
+unicodedata_numeric(PyObject *self,
+		    PyObject *args)
+{
+    PyUnicodeObject *v;
+    PyObject *defobj = NULL;
+    double rc;
+
+    if (!PyArg_ParseTuple(args, "O!|O:numeric",
+			  &PyUnicode_Type, &v, &defobj))
+	goto onError;
+    if (PyUnicode_GET_SIZE(v) != 1) {
+	PyErr_SetString(PyExc_TypeError,
+			"need a single Unicode character as parameter");
+	goto onError;
+    }
+    rc = Py_UNICODE_TONUMERIC(*PyUnicode_AS_UNICODE(v));
+    if (rc < 0) {
+	if (defobj == NULL) {
+	    PyErr_SetString(PyExc_ValueError,
+			    "not a numeric character");
+	    goto onError;
+	}
+	else {
+	    Py_INCREF(defobj);
+	    return defobj;
+	}
+    }
+    return PyFloat_FromDouble(rc);
+    
+ onError:
+    return NULL;
+}
+
+static PyObject *
+unicodedata_category(PyObject *self,
+		     PyObject *args)
+{
+    PyUnicodeObject *v;
+    int index;
+
+    if (!PyArg_ParseTuple(args, "O!:category",
+			  &PyUnicode_Type, &v))
+	goto onError;
+    if (PyUnicode_GET_SIZE(v) != 1) {
+	PyErr_SetString(PyExc_TypeError,
+			"need a single Unicode character as parameter");
+	goto onError;
+    }
+    index = (int)_PyUnicode_Database[(int)*PyUnicode_AS_UNICODE(v)].category;
+    if (index < 0 || 
+	index > sizeof(_PyUnicode_CategoryNames) / 
+	        sizeof(_PyUnicode_CategoryNames[0])) {
+	PyErr_Format(PyExc_SystemError,
+		     "category index out of range: %i",
+		     index);
+	goto onError;
+    }
+    return PyString_FromString(_PyUnicode_CategoryNames[index]);
+    
+ onError:
+    return NULL;
+}
+
+static PyObject *
+unicodedata_bidirectional(PyObject *self,
+			  PyObject *args)
+{
+    PyUnicodeObject *v;
+    int index;
+
+    if (!PyArg_ParseTuple(args, "O!:bidirectional",
+			  &PyUnicode_Type, &v))
+	goto onError;
+    if (PyUnicode_GET_SIZE(v) != 1) {
+	PyErr_SetString(PyExc_TypeError,
+			"need a single Unicode character as parameter");
+	goto onError;
+    }
+    index = (int)_PyUnicode_Database[
+			  (int)*PyUnicode_AS_UNICODE(v)].bidirectional;
+    if (index < 0 || 
+	index > sizeof(_PyUnicode_CategoryNames) / 
+	        sizeof(_PyUnicode_CategoryNames[0])) {
+	PyErr_Format(PyExc_SystemError,
+		     "bidirectional index out of range: %i",
+		     index);
+	goto onError;
+    }
+    return PyString_FromString(_PyUnicode_BidirectionalNames[index]);
+    
+ onError:
+    return NULL;
+}
+
+static PyObject *
+unicodedata_combining(PyObject *self,
+		      PyObject *args)
+{
+    PyUnicodeObject *v;
+    int value;
+
+    if (!PyArg_ParseTuple(args, "O!:combining",
+			  &PyUnicode_Type, &v))
+	goto onError;
+    if (PyUnicode_GET_SIZE(v) != 1) {
+	PyErr_SetString(PyExc_TypeError,
+			"need a single Unicode character as parameter");
+	goto onError;
+    }
+    value = (int)_PyUnicode_Database[
+                          (int)*PyUnicode_AS_UNICODE(v)].combining;
+    return PyInt_FromLong(value);
+    
+ onError:
+    return NULL;
+}
+
+static PyObject *
+unicodedata_mirrored(PyObject *self,
+		     PyObject *args)
+{
+    PyUnicodeObject *v;
+    int value;
+
+    if (!PyArg_ParseTuple(args, "O!:mirrored",
+			  &PyUnicode_Type, &v))
+	goto onError;
+    if (PyUnicode_GET_SIZE(v) != 1) {
+	PyErr_SetString(PyExc_TypeError,
+			"need a single Unicode character as parameter");
+	goto onError;
+    }
+    value = (int)_PyUnicode_Database[(int)*PyUnicode_AS_UNICODE(v)].mirrored;
+    return PyInt_FromLong(value);
+    
+ onError:
+    return NULL;
+}
+
+static PyObject *
+unicodedata_decomposition(PyObject *self,
+		      PyObject *args)
+{
+    PyUnicodeObject *v;
+    const char *value;
+
+    if (!PyArg_ParseTuple(args, "O!:decomposition",
+			  &PyUnicode_Type, &v))
+	goto onError;
+    if (PyUnicode_GET_SIZE(v) != 1) {
+	PyErr_SetString(PyExc_TypeError,
+			"need a single Unicode character as parameter");
+	goto onError;
+    }
+    value = _PyUnicode_Database[(int)*PyUnicode_AS_UNICODE(v)].decomposition;
+    if (value == NULL)
+	return PyString_FromString("");
+    else
+	return PyString_FromString(value);
+    
+ onError:
+    return NULL;
+}
+
+/* XXX Add doc strings. */
+
+static PyMethodDef unicodedata_functions[] = {
+    {"decimal",		unicodedata_decimal,			1},
+    {"digit",		unicodedata_digit,			1},
+    {"numeric",		unicodedata_numeric,			1},
+    {"category",	unicodedata_category,			1},
+    {"bidirectional",	unicodedata_bidirectional,		1},
+    {"combining",	unicodedata_combining,			1},
+    {"mirrored",	unicodedata_mirrored,			1},
+    {"decomposition",	unicodedata_decomposition,		1},
+    {NULL, NULL}		/* sentinel */
+};
+
+DL_EXPORT(void)
+initunicodedata()
+{
+    Py_InitModule("unicodedata", unicodedata_functions);
+}