Implement PEP 393.

Author: loewis

Doc/c-api/unicode.rst

@@ -1072,6 +1072,15 @@ They all return *NULL* or ``-1`` if an exception occurs.
    occurred and an exception has been set.
 
 
+.. c:function:: Py_ssize_t PyUnicode_FindChar(PyObject *str, Py_UCS4 ch, Py_ssize_t start, Py_ssize_t end, int direction)
+
+   Return the first position of the character *ch* in ``str[start:end]`` using
+   the given *direction* (*direction* == 1 means to do a forward search,
+   *direction* == -1 a backward search).  The return value is the index of the
+   first match; a value of ``-1`` indicates that no match was found, and ``-2``
+   indicates that an error occurred and an exception has been set.
+
+
 .. c:function:: Py_ssize_t PyUnicode_Count(PyObject *str, PyObject *substr, Py_ssize_t start, Py_ssize_t end)
 
    Return the number of non-overlapping occurrences of *substr* in

Include/Python.h

@@ -160,4 +160,9 @@ PyAPI_FUNC(PyObject*) _Py_Mangle(PyObject *p, PyObject *name);
 #define PyDoc_STR(str) ""
 #endif
 
+#define PY_ARRAY_LENGTH(array) (sizeof(array) / sizeof((array)[0]))
+
+#define PY_MIN(x, y) (((x) > (y)) ? (y) : (x))
+#define PY_MAX(x, y) (((x) > (y)) ? (x) : (y))
+
 #endif /* !Py_PYTHON_H */

Include/complexobject.h

@@ -64,8 +64,9 @@ PyAPI_FUNC(Py_complex) PyComplex_AsCComplex(PyObject *op);
    (Advanced String Formatting). */
 #ifndef Py_LIMITED_API
 PyAPI_FUNC(PyObject *) _PyComplex_FormatAdvanced(PyObject *obj,
-                                                 Py_UNICODE *format_spec,
-                                                 Py_ssize_t format_spec_len);
+                                                 PyObject *format_spec,
+                                                 Py_ssize_t start,
+                                                 Py_ssize_t end);
 #endif
 
 #ifdef __cplusplus

Include/floatobject.h

@@ -113,8 +113,9 @@ PyAPI_FUNC(int) PyFloat_ClearFreeList(void);
 /* Format the object based on the format_spec, as defined in PEP 3101
    (Advanced String Formatting). */
 PyAPI_FUNC(PyObject *) _PyFloat_FormatAdvanced(PyObject *obj,
-					       Py_UNICODE *format_spec,
-					       Py_ssize_t format_spec_len);
+					       PyObject *format_spec,
+					       Py_ssize_t start,
+					       Py_ssize_t end);
 #endif /* Py_LIMITED_API */
 
 #ifdef __cplusplus

Include/longobject.h

@@ -80,6 +80,7 @@ PyAPI_FUNC(PY_LONG_LONG) PyLong_AsLongLongAndOverflow(PyObject *, int *);
 PyAPI_FUNC(PyObject *) PyLong_FromString(char *, char **, int);
 #ifndef Py_LIMITED_API
 PyAPI_FUNC(PyObject *) PyLong_FromUnicode(Py_UNICODE*, Py_ssize_t, int);
+PyAPI_FUNC(PyObject *) PyLong_FromUnicodeObject(PyObject *u, int base);
 #endif
 
 #ifndef Py_LIMITED_API
@@ -155,8 +156,9 @@ PyAPI_FUNC(PyObject *) _PyLong_Format(PyObject *aa, int base);
 /* Format the object based on the format_spec, as defined in PEP 3101
    (Advanced String Formatting). */
 PyAPI_FUNC(PyObject *) _PyLong_FormatAdvanced(PyObject *obj,
-					      Py_UNICODE *format_spec,
-					      Py_ssize_t format_spec_len);
+					      PyObject *format_spec,
+					      Py_ssize_t start,
+					      Py_ssize_t end);
 #endif /* Py_LIMITED_API */
 
 /* These aren't really part of the long object, but they're handy. The

Include/pyerrors.h

@@ -301,6 +301,12 @@ PyAPI_FUNC(PyObject *) PyUnicodeTranslateError_Create(
     Py_ssize_t end,
     const char *reason          /* UTF-8 encoded string */
     );
+PyAPI_FUNC(PyObject *) _PyUnicodeTranslateError_Create(
+    PyObject *object,
+    Py_ssize_t start,
+    Py_ssize_t end,
+    const char *reason          /* UTF-8 encoded string */
+    );
 #endif
 
 /* get the encoding attribute */

Include/pyport.h

@@ -286,12 +286,15 @@ typedef size_t Py_uhash_t;
 /* fastest possible local call under MSVC */
 #define Py_LOCAL(type) static type __fastcall
 #define Py_LOCAL_INLINE(type) static __inline type __fastcall
+#define Py_LOCAL_CALLBACK(name) (__fastcall *name)
 #elif defined(USE_INLINE)
 #define Py_LOCAL(type) static type
 #define Py_LOCAL_INLINE(type) static inline type
+#define Py_LOCAL_CALLBACK(name) (*name)
 #else
 #define Py_LOCAL(type) static type
 #define Py_LOCAL_INLINE(type) static type
+#define Py_LOCAL_CALLBACK(name) (*name)
 #endif
 
 /* Py_MEMCPY can be used instead of memcpy in cases where the copied blocks