7248 lines
184 KiB
C
7248 lines
184 KiB
C
/*
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|
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Unicode implementation based on original code by Fredrik Lundh,
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modified by Marc-Andre Lemburg <mal@lemburg.com> according to the
|
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Unicode Integration Proposal (see file Misc/unicode.txt).
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Copyright (c) Corporation for National Research Initiatives.
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--------------------------------------------------------------------
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The original string type implementation is:
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Copyright (c) 1999 by Secret Labs AB
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Copyright (c) 1999 by Fredrik Lundh
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By obtaining, using, and/or copying this software and/or its
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associated documentation, you agree that you have read, understood,
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and will comply with the following terms and conditions:
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Permission to use, copy, modify, and distribute this software and its
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associated documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appears in all
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copies, and that both that copyright notice and this permission notice
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appear in supporting documentation, and that the name of Secret Labs
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AB or the author not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior
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permission.
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SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO
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THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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--------------------------------------------------------------------
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*/
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#include "Python.h"
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#include "unicodeobject.h"
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#include "ucnhash.h"
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|
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#ifdef __SUNPRO_C
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#pragma error_messages (off,E_END_OF_LOOP_CODE_NOT_REACHED)
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#endif
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#ifdef MS_WINDOWS
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#include <windows.h>
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#endif
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|
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/* Limit for the Unicode object free list */
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#define MAX_UNICODE_FREELIST_SIZE 1024
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|
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/* Limit for the Unicode object free list stay alive optimization.
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|
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The implementation will keep allocated Unicode memory intact for
|
|
all objects on the free list having a size less than this
|
|
limit. This reduces malloc() overhead for small Unicode objects.
|
|
|
|
At worst this will result in MAX_UNICODE_FREELIST_SIZE *
|
|
(sizeof(PyUnicodeObject) + KEEPALIVE_SIZE_LIMIT +
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|
malloc()-overhead) bytes of unused garbage.
|
|
|
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Setting the limit to 0 effectively turns the feature off.
|
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|
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Note: This is an experimental feature ! If you get core dumps when
|
|
using Unicode objects, turn this feature off.
|
|
|
|
*/
|
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|
|
#define KEEPALIVE_SIZE_LIMIT 9
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|
|
|
/* Endianness switches; defaults to little endian */
|
|
|
|
#ifdef WORDS_BIGENDIAN
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# define BYTEORDER_IS_BIG_ENDIAN
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#else
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# define BYTEORDER_IS_LITTLE_ENDIAN
|
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#endif
|
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|
|
/* --- Globals ------------------------------------------------------------
|
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|
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The globals are initialized by the _PyUnicode_Init() API and should
|
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not be used before calling that API.
|
|
|
|
*/
|
|
|
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/* Free list for Unicode objects */
|
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static PyUnicodeObject *unicode_freelist;
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static int unicode_freelist_size;
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|
|
/* The empty Unicode object is shared to improve performance. */
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static PyUnicodeObject *unicode_empty;
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|
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/* Single character Unicode strings in the Latin-1 range are being
|
|
shared as well. */
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static PyUnicodeObject *unicode_latin1[256];
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|
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/* Default encoding to use and assume when NULL is passed as encoding
|
|
parameter; it is initialized by _PyUnicode_Init().
|
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|
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Always use the PyUnicode_SetDefaultEncoding() and
|
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PyUnicode_GetDefaultEncoding() APIs to access this global.
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|
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*/
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static char unicode_default_encoding[100];
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Py_UNICODE
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PyUnicode_GetMax(void)
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{
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#ifdef Py_UNICODE_WIDE
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return 0x10FFFF;
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#else
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|
/* This is actually an illegal character, so it should
|
|
not be passed to unichr. */
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return 0xFFFF;
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#endif
|
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}
|
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|
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/* --- Unicode Object ----------------------------------------------------- */
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|
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static
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int unicode_resize(register PyUnicodeObject *unicode,
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int length)
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|
{
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void *oldstr;
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|
|
|
/* Shortcut if there's nothing much to do. */
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if (unicode->length == length)
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goto reset;
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|
|
/* Resizing shared object (unicode_empty or single character
|
|
objects) in-place is not allowed. Use PyUnicode_Resize()
|
|
instead ! */
|
|
if (unicode == unicode_empty ||
|
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(unicode->length == 1 &&
|
|
/* MvL said unicode->str[] may be signed. Python generally assumes
|
|
* an int contains at least 32 bits, and we don't use more than
|
|
* 32 bits even in a UCS4 build, so casting to unsigned int should
|
|
* be correct.
|
|
*/
|
|
(unsigned int)unicode->str[0] < 256U &&
|
|
unicode_latin1[unicode->str[0]] == unicode)) {
|
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PyErr_SetString(PyExc_SystemError,
|
|
"can't resize shared unicode objects");
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|
return -1;
|
|
}
|
|
|
|
/* We allocate one more byte to make sure the string is
|
|
Ux0000 terminated -- XXX is this needed ? */
|
|
oldstr = unicode->str;
|
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PyMem_RESIZE(unicode->str, Py_UNICODE, length + 1);
|
|
if (!unicode->str) {
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unicode->str = oldstr;
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PyErr_NoMemory();
|
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return -1;
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|
}
|
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unicode->str[length] = 0;
|
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unicode->length = length;
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|
|
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reset:
|
|
/* Reset the object caches */
|
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if (unicode->defenc) {
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Py_DECREF(unicode->defenc);
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unicode->defenc = NULL;
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|
}
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unicode->hash = -1;
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|
|
return 0;
|
|
}
|
|
|
|
/* We allocate one more byte to make sure the string is
|
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Ux0000 terminated -- XXX is this needed ?
|
|
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XXX This allocator could further be enhanced by assuring that the
|
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free list never reduces its size below 1.
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|
|
|
*/
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|
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static
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PyUnicodeObject *_PyUnicode_New(int length)
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|
{
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register PyUnicodeObject *unicode;
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/* Optimization fo empty strings */
|
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if (length == 0 && unicode_empty != NULL) {
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|
Py_INCREF(unicode_empty);
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|
return unicode_empty;
|
|
}
|
|
|
|
/* Unicode freelist & memory allocation */
|
|
if (unicode_freelist) {
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|
unicode = unicode_freelist;
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unicode_freelist = *(PyUnicodeObject **)unicode;
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unicode_freelist_size--;
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if (unicode->str) {
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|
/* Keep-Alive optimization: we only upsize the buffer,
|
|
never downsize it. */
|
|
if ((unicode->length < length) &&
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unicode_resize(unicode, length) < 0) {
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PyMem_DEL(unicode->str);
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goto onError;
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|
}
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|
}
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else {
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unicode->str = PyMem_NEW(Py_UNICODE, length + 1);
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}
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PyObject_INIT(unicode, &PyUnicode_Type);
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}
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else {
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unicode = PyObject_New(PyUnicodeObject, &PyUnicode_Type);
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if (unicode == NULL)
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|
return NULL;
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|
unicode->str = PyMem_NEW(Py_UNICODE, length + 1);
|
|
}
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|
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|
if (!unicode->str) {
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PyErr_NoMemory();
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goto onError;
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|
}
|
|
/* Initialize the first element to guard against cases where
|
|
* the caller fails before initializing str -- unicode_resize()
|
|
* reads str[0], and the Keep-Alive optimization can keep memory
|
|
* allocated for str alive across a call to unicode_dealloc(unicode).
|
|
* We don't want unicode_resize to read uninitialized memory in
|
|
* that case.
|
|
*/
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unicode->str[0] = 0;
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unicode->str[length] = 0;
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unicode->length = length;
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|
unicode->hash = -1;
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unicode->defenc = NULL;
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return unicode;
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|
onError:
|
|
_Py_ForgetReference((PyObject *)unicode);
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PyObject_Del(unicode);
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|
return NULL;
|
|
}
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|
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|
static
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void unicode_dealloc(register PyUnicodeObject *unicode)
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|
{
|
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if (PyUnicode_CheckExact(unicode) &&
|
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unicode_freelist_size < MAX_UNICODE_FREELIST_SIZE) {
|
|
/* Keep-Alive optimization */
|
|
if (unicode->length >= KEEPALIVE_SIZE_LIMIT) {
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PyMem_DEL(unicode->str);
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unicode->str = NULL;
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unicode->length = 0;
|
|
}
|
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if (unicode->defenc) {
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Py_DECREF(unicode->defenc);
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unicode->defenc = NULL;
|
|
}
|
|
/* Add to free list */
|
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*(PyUnicodeObject **)unicode = unicode_freelist;
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unicode_freelist = unicode;
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unicode_freelist_size++;
|
|
}
|
|
else {
|
|
PyMem_DEL(unicode->str);
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|
Py_XDECREF(unicode->defenc);
|
|
unicode->ob_type->tp_free((PyObject *)unicode);
|
|
}
|
|
}
|
|
|
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int PyUnicode_Resize(PyObject **unicode, int length)
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|
{
|
|
register PyUnicodeObject *v;
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|
|
|
/* Argument checks */
|
|
if (unicode == NULL) {
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|
PyErr_BadInternalCall();
|
|
return -1;
|
|
}
|
|
v = (PyUnicodeObject *)*unicode;
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|
if (v == NULL || !PyUnicode_Check(v) || v->ob_refcnt != 1 || length < 0) {
|
|
PyErr_BadInternalCall();
|
|
return -1;
|
|
}
|
|
|
|
/* Resizing unicode_empty and single character objects is not
|
|
possible since these are being shared. We simply return a fresh
|
|
copy with the same Unicode content. */
|
|
if (v->length != length &&
|
|
(v == unicode_empty || v->length == 1)) {
|
|
PyUnicodeObject *w = _PyUnicode_New(length);
|
|
if (w == NULL)
|
|
return -1;
|
|
Py_UNICODE_COPY(w->str, v->str,
|
|
length < v->length ? length : v->length);
|
|
Py_DECREF(*unicode);
|
|
*unicode = (PyObject *)w;
|
|
return 0;
|
|
}
|
|
|
|
/* Note that we don't have to modify *unicode for unshared Unicode
|
|
objects, since we can modify them in-place. */
|
|
return unicode_resize(v, length);
|
|
}
|
|
|
|
/* Internal API for use in unicodeobject.c only ! */
|
|
#define _PyUnicode_Resize(unicodevar, length) \
|
|
PyUnicode_Resize(((PyObject **)(unicodevar)), length)
|
|
|
|
PyObject *PyUnicode_FromUnicode(const Py_UNICODE *u,
|
|
int size)
|
|
{
|
|
PyUnicodeObject *unicode;
|
|
|
|
/* If the Unicode data is known at construction time, we can apply
|
|
some optimizations which share commonly used objects. */
|
|
if (u != NULL) {
|
|
|
|
/* Optimization for empty strings */
|
|
if (size == 0 && unicode_empty != NULL) {
|
|
Py_INCREF(unicode_empty);
|
|
return (PyObject *)unicode_empty;
|
|
}
|
|
|
|
/* Single character Unicode objects in the Latin-1 range are
|
|
shared when using this constructor */
|
|
if (size == 1 && *u < 256) {
|
|
unicode = unicode_latin1[*u];
|
|
if (!unicode) {
|
|
unicode = _PyUnicode_New(1);
|
|
if (!unicode)
|
|
return NULL;
|
|
unicode->str[0] = *u;
|
|
unicode_latin1[*u] = unicode;
|
|
}
|
|
Py_INCREF(unicode);
|
|
return (PyObject *)unicode;
|
|
}
|
|
}
|
|
|
|
unicode = _PyUnicode_New(size);
|
|
if (!unicode)
|
|
return NULL;
|
|
|
|
/* Copy the Unicode data into the new object */
|
|
if (u != NULL)
|
|
Py_UNICODE_COPY(unicode->str, u, size);
|
|
|
|
return (PyObject *)unicode;
|
|
}
|
|
|
|
#ifdef HAVE_WCHAR_H
|
|
|
|
PyObject *PyUnicode_FromWideChar(register const wchar_t *w,
|
|
int size)
|
|
{
|
|
PyUnicodeObject *unicode;
|
|
|
|
if (w == NULL) {
|
|
PyErr_BadInternalCall();
|
|
return NULL;
|
|
}
|
|
|
|
unicode = _PyUnicode_New(size);
|
|
if (!unicode)
|
|
return NULL;
|
|
|
|
/* Copy the wchar_t data into the new object */
|
|
#ifdef HAVE_USABLE_WCHAR_T
|
|
memcpy(unicode->str, w, size * sizeof(wchar_t));
|
|
#else
|
|
{
|
|
register Py_UNICODE *u;
|
|
register int i;
|
|
u = PyUnicode_AS_UNICODE(unicode);
|
|
for (i = size; i >= 0; i--)
|
|
*u++ = *w++;
|
|
}
|
|
#endif
|
|
|
|
return (PyObject *)unicode;
|
|
}
|
|
|
|
int PyUnicode_AsWideChar(PyUnicodeObject *unicode,
|
|
register wchar_t *w,
|
|
int size)
|
|
{
|
|
if (unicode == NULL) {
|
|
PyErr_BadInternalCall();
|
|
return -1;
|
|
}
|
|
if (size > PyUnicode_GET_SIZE(unicode))
|
|
size = PyUnicode_GET_SIZE(unicode);
|
|
#ifdef HAVE_USABLE_WCHAR_T
|
|
memcpy(w, unicode->str, size * sizeof(wchar_t));
|
|
#else
|
|
{
|
|
register Py_UNICODE *u;
|
|
register int i;
|
|
u = PyUnicode_AS_UNICODE(unicode);
|
|
for (i = size; i >= 0; i--)
|
|
*w++ = *u++;
|
|
}
|
|
#endif
|
|
|
|
return size;
|
|
}
|
|
|
|
#endif
|
|
|
|
PyObject *PyUnicode_FromOrdinal(int ordinal)
|
|
{
|
|
Py_UNICODE s[1];
|
|
|
|
#ifdef Py_UNICODE_WIDE
|
|
if (ordinal < 0 || ordinal > 0x10ffff) {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"unichr() arg not in range(0x110000) "
|
|
"(wide Python build)");
|
|
return NULL;
|
|
}
|
|
#else
|
|
if (ordinal < 0 || ordinal > 0xffff) {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"unichr() arg not in range(0x10000) "
|
|
"(narrow Python build)");
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
s[0] = (Py_UNICODE)ordinal;
|
|
return PyUnicode_FromUnicode(s, 1);
|
|
}
|
|
|
|
PyObject *PyUnicode_FromObject(register PyObject *obj)
|
|
{
|
|
/* XXX Perhaps we should make this API an alias of
|
|
PyObject_Unicode() instead ?! */
|
|
if (PyUnicode_CheckExact(obj)) {
|
|
Py_INCREF(obj);
|
|
return obj;
|
|
}
|
|
if (PyUnicode_Check(obj)) {
|
|
/* For a Unicode subtype that's not a Unicode object,
|
|
return a true Unicode object with the same data. */
|
|
return PyUnicode_FromUnicode(PyUnicode_AS_UNICODE(obj),
|
|
PyUnicode_GET_SIZE(obj));
|
|
}
|
|
return PyUnicode_FromEncodedObject(obj, NULL, "strict");
|
|
}
|
|
|
|
PyObject *PyUnicode_FromEncodedObject(register PyObject *obj,
|
|
const char *encoding,
|
|
const char *errors)
|
|
{
|
|
const char *s = NULL;
|
|
int len;
|
|
PyObject *v;
|
|
|
|
if (obj == NULL) {
|
|
PyErr_BadInternalCall();
|
|
return NULL;
|
|
}
|
|
|
|
#if 0
|
|
/* For b/w compatibility we also accept Unicode objects provided
|
|
that no encodings is given and then redirect to
|
|
PyObject_Unicode() which then applies the additional logic for
|
|
Unicode subclasses.
|
|
|
|
NOTE: This API should really only be used for object which
|
|
represent *encoded* Unicode !
|
|
|
|
*/
|
|
if (PyUnicode_Check(obj)) {
|
|
if (encoding) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"decoding Unicode is not supported");
|
|
return NULL;
|
|
}
|
|
return PyObject_Unicode(obj);
|
|
}
|
|
#else
|
|
if (PyUnicode_Check(obj)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"decoding Unicode is not supported");
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
/* Coerce object */
|
|
if (PyString_Check(obj)) {
|
|
s = PyString_AS_STRING(obj);
|
|
len = PyString_GET_SIZE(obj);
|
|
}
|
|
else if (PyObject_AsCharBuffer(obj, &s, &len)) {
|
|
/* Overwrite the error message with something more useful in
|
|
case of a TypeError. */
|
|
if (PyErr_ExceptionMatches(PyExc_TypeError))
|
|
PyErr_Format(PyExc_TypeError,
|
|
"coercing to Unicode: need string or buffer, "
|
|
"%.80s found",
|
|
obj->ob_type->tp_name);
|
|
goto onError;
|
|
}
|
|
|
|
/* Convert to Unicode */
|
|
if (len == 0) {
|
|
Py_INCREF(unicode_empty);
|
|
v = (PyObject *)unicode_empty;
|
|
}
|
|
else
|
|
v = PyUnicode_Decode(s, len, encoding, errors);
|
|
|
|
return v;
|
|
|
|
onError:
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_Decode(const char *s,
|
|
int size,
|
|
const char *encoding,
|
|
const char *errors)
|
|
{
|
|
PyObject *buffer = NULL, *unicode;
|
|
|
|
if (encoding == NULL)
|
|
encoding = PyUnicode_GetDefaultEncoding();
|
|
|
|
/* Shortcuts for common default encodings */
|
|
if (strcmp(encoding, "utf-8") == 0)
|
|
return PyUnicode_DecodeUTF8(s, size, errors);
|
|
else if (strcmp(encoding, "latin-1") == 0)
|
|
return PyUnicode_DecodeLatin1(s, size, errors);
|
|
#if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T)
|
|
else if (strcmp(encoding, "mbcs") == 0)
|
|
return PyUnicode_DecodeMBCS(s, size, errors);
|
|
#endif
|
|
else if (strcmp(encoding, "ascii") == 0)
|
|
return PyUnicode_DecodeASCII(s, size, errors);
|
|
|
|
/* Decode via the codec registry */
|
|
buffer = PyBuffer_FromMemory((void *)s, size);
|
|
if (buffer == NULL)
|
|
goto onError;
|
|
unicode = PyCodec_Decode(buffer, encoding, errors);
|
|
if (unicode == NULL)
|
|
goto onError;
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"decoder did not return an unicode object (type=%.400s)",
|
|
unicode->ob_type->tp_name);
|
|
Py_DECREF(unicode);
|
|
goto onError;
|
|
}
|
|
Py_DECREF(buffer);
|
|
return unicode;
|
|
|
|
onError:
|
|
Py_XDECREF(buffer);
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_AsDecodedObject(PyObject *unicode,
|
|
const char *encoding,
|
|
const char *errors)
|
|
{
|
|
PyObject *v;
|
|
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
goto onError;
|
|
}
|
|
|
|
if (encoding == NULL)
|
|
encoding = PyUnicode_GetDefaultEncoding();
|
|
|
|
/* Decode via the codec registry */
|
|
v = PyCodec_Decode(unicode, encoding, errors);
|
|
if (v == NULL)
|
|
goto onError;
|
|
return v;
|
|
|
|
onError:
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_Encode(const Py_UNICODE *s,
|
|
int size,
|
|
const char *encoding,
|
|
const char *errors)
|
|
{
|
|
PyObject *v, *unicode;
|
|
|
|
unicode = PyUnicode_FromUnicode(s, size);
|
|
if (unicode == NULL)
|
|
return NULL;
|
|
v = PyUnicode_AsEncodedString(unicode, encoding, errors);
|
|
Py_DECREF(unicode);
|
|
return v;
|
|
}
|
|
|
|
PyObject *PyUnicode_AsEncodedObject(PyObject *unicode,
|
|
const char *encoding,
|
|
const char *errors)
|
|
{
|
|
PyObject *v;
|
|
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
goto onError;
|
|
}
|
|
|
|
if (encoding == NULL)
|
|
encoding = PyUnicode_GetDefaultEncoding();
|
|
|
|
/* Encode via the codec registry */
|
|
v = PyCodec_Encode(unicode, encoding, errors);
|
|
if (v == NULL)
|
|
goto onError;
|
|
return v;
|
|
|
|
onError:
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_AsEncodedString(PyObject *unicode,
|
|
const char *encoding,
|
|
const char *errors)
|
|
{
|
|
PyObject *v;
|
|
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
goto onError;
|
|
}
|
|
|
|
if (encoding == NULL)
|
|
encoding = PyUnicode_GetDefaultEncoding();
|
|
|
|
/* Shortcuts for common default encodings */
|
|
if (errors == NULL) {
|
|
if (strcmp(encoding, "utf-8") == 0)
|
|
return PyUnicode_AsUTF8String(unicode);
|
|
else if (strcmp(encoding, "latin-1") == 0)
|
|
return PyUnicode_AsLatin1String(unicode);
|
|
#if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T)
|
|
else if (strcmp(encoding, "mbcs") == 0)
|
|
return PyUnicode_AsMBCSString(unicode);
|
|
#endif
|
|
else if (strcmp(encoding, "ascii") == 0)
|
|
return PyUnicode_AsASCIIString(unicode);
|
|
}
|
|
|
|
/* Encode via the codec registry */
|
|
v = PyCodec_Encode(unicode, encoding, errors);
|
|
if (v == NULL)
|
|
goto onError;
|
|
if (!PyString_Check(v)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"encoder did not return a string object (type=%.400s)",
|
|
v->ob_type->tp_name);
|
|
Py_DECREF(v);
|
|
goto onError;
|
|
}
|
|
return v;
|
|
|
|
onError:
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *_PyUnicode_AsDefaultEncodedString(PyObject *unicode,
|
|
const char *errors)
|
|
{
|
|
PyObject *v = ((PyUnicodeObject *)unicode)->defenc;
|
|
|
|
if (v)
|
|
return v;
|
|
v = PyUnicode_AsEncodedString(unicode, NULL, errors);
|
|
if (v && errors == NULL)
|
|
((PyUnicodeObject *)unicode)->defenc = v;
|
|
return v;
|
|
}
|
|
|
|
Py_UNICODE *PyUnicode_AsUnicode(PyObject *unicode)
|
|
{
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
goto onError;
|
|
}
|
|
return PyUnicode_AS_UNICODE(unicode);
|
|
|
|
onError:
|
|
return NULL;
|
|
}
|
|
|
|
int PyUnicode_GetSize(PyObject *unicode)
|
|
{
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
goto onError;
|
|
}
|
|
return PyUnicode_GET_SIZE(unicode);
|
|
|
|
onError:
|
|
return -1;
|
|
}
|
|
|
|
int PyUnicode_GetWidth(PyObject *unicode)
|
|
{
|
|
const Py_UNICODE *p, *e;
|
|
int width;
|
|
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
return -1;
|
|
}
|
|
|
|
p = PyUnicode_AS_UNICODE(unicode);
|
|
e = p + PyUnicode_GET_SIZE(unicode);
|
|
for (width = 0; p < e; p++)
|
|
if (Py_UNICODE_ISWIDE(*p))
|
|
width += 2;
|
|
else
|
|
width++;
|
|
|
|
return width;
|
|
}
|
|
|
|
const char *PyUnicode_GetDefaultEncoding(void)
|
|
{
|
|
return unicode_default_encoding;
|
|
}
|
|
|
|
int PyUnicode_SetDefaultEncoding(const char *encoding)
|
|
{
|
|
PyObject *v;
|
|
|
|
/* Make sure the encoding is valid. As side effect, this also
|
|
loads the encoding into the codec registry cache. */
|
|
v = _PyCodec_Lookup(encoding);
|
|
if (v == NULL)
|
|
goto onError;
|
|
Py_DECREF(v);
|
|
strncpy(unicode_default_encoding,
|
|
encoding,
|
|
sizeof(unicode_default_encoding));
|
|
return 0;
|
|
|
|
onError:
|
|
return -1;
|
|
}
|
|
|
|
/* error handling callback helper:
|
|
build arguments, call the callback and check the arguments,
|
|
if no exception occured, copy the replacement to the output
|
|
and adjust various state variables.
|
|
return 0 on success, -1 on error
|
|
*/
|
|
|
|
static
|
|
int unicode_decode_call_errorhandler(const char *errors, PyObject **errorHandler,
|
|
const char *encoding, const char *reason,
|
|
const char *input, int insize, int *startinpos, int *endinpos, PyObject **exceptionObject, const char **inptr,
|
|
PyObject **output, int *outpos, Py_UNICODE **outptr)
|
|
{
|
|
static char *argparse = "O!i;decoding error handler must return (unicode, int) tuple";
|
|
|
|
PyObject *restuple = NULL;
|
|
PyObject *repunicode = NULL;
|
|
int outsize = PyUnicode_GET_SIZE(*output);
|
|
int requiredsize;
|
|
int newpos;
|
|
Py_UNICODE *repptr;
|
|
int repsize;
|
|
int res = -1;
|
|
|
|
if (*errorHandler == NULL) {
|
|
*errorHandler = PyCodec_LookupError(errors);
|
|
if (*errorHandler == NULL)
|
|
goto onError;
|
|
}
|
|
|
|
if (*exceptionObject == NULL) {
|
|
*exceptionObject = PyUnicodeDecodeError_Create(
|
|
encoding, input, insize, *startinpos, *endinpos, reason);
|
|
if (*exceptionObject == NULL)
|
|
goto onError;
|
|
}
|
|
else {
|
|
if (PyUnicodeDecodeError_SetStart(*exceptionObject, *startinpos))
|
|
goto onError;
|
|
if (PyUnicodeDecodeError_SetEnd(*exceptionObject, *endinpos))
|
|
goto onError;
|
|
if (PyUnicodeDecodeError_SetReason(*exceptionObject, reason))
|
|
goto onError;
|
|
}
|
|
|
|
restuple = PyObject_CallFunctionObjArgs(*errorHandler, *exceptionObject, NULL);
|
|
if (restuple == NULL)
|
|
goto onError;
|
|
if (!PyTuple_Check(restuple)) {
|
|
PyErr_Format(PyExc_TypeError, &argparse[4]);
|
|
goto onError;
|
|
}
|
|
if (!PyArg_ParseTuple(restuple, argparse, &PyUnicode_Type, &repunicode, &newpos))
|
|
goto onError;
|
|
if (newpos<0)
|
|
newpos = insize+newpos;
|
|
if (newpos<0 || newpos>insize) {
|
|
PyErr_Format(PyExc_IndexError, "position %d from error handler out of bounds", newpos);
|
|
goto onError;
|
|
}
|
|
|
|
/* need more space? (at least enough for what we
|
|
have+the replacement+the rest of the string (starting
|
|
at the new input position), so we won't have to check space
|
|
when there are no errors in the rest of the string) */
|
|
repptr = PyUnicode_AS_UNICODE(repunicode);
|
|
repsize = PyUnicode_GET_SIZE(repunicode);
|
|
requiredsize = *outpos + repsize + insize-newpos;
|
|
if (requiredsize > outsize) {
|
|
if (requiredsize<2*outsize)
|
|
requiredsize = 2*outsize;
|
|
if (PyUnicode_Resize(output, requiredsize) < 0)
|
|
goto onError;
|
|
*outptr = PyUnicode_AS_UNICODE(*output) + *outpos;
|
|
}
|
|
*endinpos = newpos;
|
|
*inptr = input + newpos;
|
|
Py_UNICODE_COPY(*outptr, repptr, repsize);
|
|
*outptr += repsize;
|
|
*outpos += repsize;
|
|
/* we made it! */
|
|
res = 0;
|
|
|
|
onError:
|
|
Py_XDECREF(restuple);
|
|
return res;
|
|
}
|
|
|
|
/* --- UTF-7 Codec -------------------------------------------------------- */
|
|
|
|
/* see RFC2152 for details */
|
|
|
|
static
|
|
char utf7_special[128] = {
|
|
/* indicate whether a UTF-7 character is special i.e. cannot be directly
|
|
encoded:
|
|
0 - not special
|
|
1 - special
|
|
2 - whitespace (optional)
|
|
3 - RFC2152 Set O (optional) */
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
2, 3, 3, 3, 3, 3, 3, 0, 0, 0, 3, 1, 0, 0, 0, 1,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0,
|
|
3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 1, 3, 3, 3,
|
|
3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 1, 1,
|
|
|
|
};
|
|
|
|
#define SPECIAL(c, encodeO, encodeWS) \
|
|
(((c)>127 || utf7_special[(c)] == 1) || \
|
|
(encodeWS && (utf7_special[(c)] == 2)) || \
|
|
(encodeO && (utf7_special[(c)] == 3)))
|
|
|
|
#define B64(n) ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"[(n) & 0x3f])
|
|
#define B64CHAR(c) (isalnum(c) || (c) == '+' || (c) == '/')
|
|
#define UB64(c) ((c) == '+' ? 62 : (c) == '/' ? 63 : (c) >= 'a' ? \
|
|
(c) - 71 : (c) >= 'A' ? (c) - 65 : (c) + 4)
|
|
|
|
#define ENCODE(out, ch, bits) \
|
|
while (bits >= 6) { \
|
|
*out++ = B64(ch >> (bits-6)); \
|
|
bits -= 6; \
|
|
}
|
|
|
|
#define DECODE(out, ch, bits, surrogate) \
|
|
while (bits >= 16) { \
|
|
Py_UNICODE outCh = (Py_UNICODE) ((ch >> (bits-16)) & 0xffff); \
|
|
bits -= 16; \
|
|
if (surrogate) { \
|
|
/* We have already generated an error for the high surrogate
|
|
so let's not bother seeing if the low surrogate is correct or not */\
|
|
surrogate = 0; \
|
|
} else if (0xDC00 <= outCh && outCh <= 0xDFFF) { \
|
|
/* This is a surrogate pair. Unfortunately we can't represent \
|
|
it in a 16-bit character */ \
|
|
surrogate = 1; \
|
|
errmsg = "code pairs are not supported"; \
|
|
goto utf7Error; \
|
|
} else { \
|
|
*out++ = outCh; \
|
|
} \
|
|
} \
|
|
|
|
PyObject *PyUnicode_DecodeUTF7(const char *s,
|
|
int size,
|
|
const char *errors)
|
|
{
|
|
const char *starts = s;
|
|
int startinpos;
|
|
int endinpos;
|
|
int outpos;
|
|
const char *e;
|
|
PyUnicodeObject *unicode;
|
|
Py_UNICODE *p;
|
|
const char *errmsg = "";
|
|
int inShift = 0;
|
|
unsigned int bitsleft = 0;
|
|
unsigned long charsleft = 0;
|
|
int surrogate = 0;
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
|
|
unicode = _PyUnicode_New(size);
|
|
if (!unicode)
|
|
return NULL;
|
|
if (size == 0)
|
|
return (PyObject *)unicode;
|
|
|
|
p = unicode->str;
|
|
e = s + size;
|
|
|
|
while (s < e) {
|
|
Py_UNICODE ch;
|
|
restart:
|
|
ch = *s;
|
|
|
|
if (inShift) {
|
|
if ((ch == '-') || !B64CHAR(ch)) {
|
|
inShift = 0;
|
|
s++;
|
|
|
|
/* p, charsleft, bitsleft, surrogate = */ DECODE(p, charsleft, bitsleft, surrogate);
|
|
if (bitsleft >= 6) {
|
|
/* The shift sequence has a partial character in it. If
|
|
bitsleft < 6 then we could just classify it as padding
|
|
but that is not the case here */
|
|
|
|
errmsg = "partial character in shift sequence";
|
|
goto utf7Error;
|
|
}
|
|
/* According to RFC2152 the remaining bits should be zero. We
|
|
choose to signal an error/insert a replacement character
|
|
here so indicate the potential of a misencoded character. */
|
|
|
|
/* On x86, a << b == a << (b%32) so make sure that bitsleft != 0 */
|
|
if (bitsleft && charsleft << (sizeof(charsleft) * 8 - bitsleft)) {
|
|
errmsg = "non-zero padding bits in shift sequence";
|
|
goto utf7Error;
|
|
}
|
|
|
|
if (ch == '-') {
|
|
if ((s < e) && (*(s) == '-')) {
|
|
*p++ = '-';
|
|
inShift = 1;
|
|
}
|
|
} else if (SPECIAL(ch,0,0)) {
|
|
errmsg = "unexpected special character";
|
|
goto utf7Error;
|
|
} else {
|
|
*p++ = ch;
|
|
}
|
|
} else {
|
|
charsleft = (charsleft << 6) | UB64(ch);
|
|
bitsleft += 6;
|
|
s++;
|
|
/* p, charsleft, bitsleft, surrogate = */ DECODE(p, charsleft, bitsleft, surrogate);
|
|
}
|
|
}
|
|
else if ( ch == '+' ) {
|
|
startinpos = s-starts;
|
|
s++;
|
|
if (s < e && *s == '-') {
|
|
s++;
|
|
*p++ = '+';
|
|
} else
|
|
{
|
|
inShift = 1;
|
|
bitsleft = 0;
|
|
}
|
|
}
|
|
else if (SPECIAL(ch,0,0)) {
|
|
errmsg = "unexpected special character";
|
|
s++;
|
|
goto utf7Error;
|
|
}
|
|
else {
|
|
*p++ = ch;
|
|
s++;
|
|
}
|
|
continue;
|
|
utf7Error:
|
|
outpos = p-PyUnicode_AS_UNICODE(unicode);
|
|
endinpos = s-starts;
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"utf7", errmsg,
|
|
starts, size, &startinpos, &endinpos, &exc, &s,
|
|
(PyObject **)&unicode, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
|
|
if (inShift) {
|
|
outpos = p-PyUnicode_AS_UNICODE(unicode);
|
|
endinpos = size;
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"utf7", "unterminated shift sequence",
|
|
starts, size, &startinpos, &endinpos, &exc, &s,
|
|
(PyObject **)&unicode, &outpos, &p))
|
|
goto onError;
|
|
if (s < e)
|
|
goto restart;
|
|
}
|
|
|
|
if (_PyUnicode_Resize(&unicode, p - PyUnicode_AS_UNICODE(unicode)) < 0)
|
|
goto onError;
|
|
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return (PyObject *)unicode;
|
|
|
|
onError:
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
Py_DECREF(unicode);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
PyObject *PyUnicode_EncodeUTF7(const Py_UNICODE *s,
|
|
int size,
|
|
int encodeSetO,
|
|
int encodeWhiteSpace,
|
|
const char *errors)
|
|
{
|
|
PyObject *v;
|
|
/* It might be possible to tighten this worst case */
|
|
unsigned int cbAllocated = 5 * size;
|
|
int inShift = 0;
|
|
int i = 0;
|
|
unsigned int bitsleft = 0;
|
|
unsigned long charsleft = 0;
|
|
char * out;
|
|
char * start;
|
|
|
|
if (size == 0)
|
|
return PyString_FromStringAndSize(NULL, 0);
|
|
|
|
v = PyString_FromStringAndSize(NULL, cbAllocated);
|
|
if (v == NULL)
|
|
return NULL;
|
|
|
|
start = out = PyString_AS_STRING(v);
|
|
for (;i < size; ++i) {
|
|
Py_UNICODE ch = s[i];
|
|
|
|
if (!inShift) {
|
|
if (ch == '+') {
|
|
*out++ = '+';
|
|
*out++ = '-';
|
|
} else if (SPECIAL(ch, encodeSetO, encodeWhiteSpace)) {
|
|
charsleft = ch;
|
|
bitsleft = 16;
|
|
*out++ = '+';
|
|
/* out, charsleft, bitsleft = */ ENCODE(out, charsleft, bitsleft);
|
|
inShift = bitsleft > 0;
|
|
} else {
|
|
*out++ = (char) ch;
|
|
}
|
|
} else {
|
|
if (!SPECIAL(ch, encodeSetO, encodeWhiteSpace)) {
|
|
*out++ = B64(charsleft << (6-bitsleft));
|
|
charsleft = 0;
|
|
bitsleft = 0;
|
|
/* Characters not in the BASE64 set implicitly unshift the sequence
|
|
so no '-' is required, except if the character is itself a '-' */
|
|
if (B64CHAR(ch) || ch == '-') {
|
|
*out++ = '-';
|
|
}
|
|
inShift = 0;
|
|
*out++ = (char) ch;
|
|
} else {
|
|
bitsleft += 16;
|
|
charsleft = (charsleft << 16) | ch;
|
|
/* out, charsleft, bitsleft = */ ENCODE(out, charsleft, bitsleft);
|
|
|
|
/* If the next character is special then we dont' need to terminate
|
|
the shift sequence. If the next character is not a BASE64 character
|
|
or '-' then the shift sequence will be terminated implicitly and we
|
|
don't have to insert a '-'. */
|
|
|
|
if (bitsleft == 0) {
|
|
if (i + 1 < size) {
|
|
Py_UNICODE ch2 = s[i+1];
|
|
|
|
if (SPECIAL(ch2, encodeSetO, encodeWhiteSpace)) {
|
|
|
|
} else if (B64CHAR(ch2) || ch2 == '-') {
|
|
*out++ = '-';
|
|
inShift = 0;
|
|
} else {
|
|
inShift = 0;
|
|
}
|
|
|
|
}
|
|
else {
|
|
*out++ = '-';
|
|
inShift = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (bitsleft) {
|
|
*out++= B64(charsleft << (6-bitsleft) );
|
|
*out++ = '-';
|
|
}
|
|
|
|
_PyString_Resize(&v, out - start);
|
|
return v;
|
|
}
|
|
|
|
#undef SPECIAL
|
|
#undef B64
|
|
#undef B64CHAR
|
|
#undef UB64
|
|
#undef ENCODE
|
|
#undef DECODE
|
|
|
|
/* --- UTF-8 Codec -------------------------------------------------------- */
|
|
|
|
static
|
|
char utf8_code_length[256] = {
|
|
/* Map UTF-8 encoded prefix byte to sequence length. zero means
|
|
illegal prefix. see RFC 2279 for details */
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
|
|
4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 0, 0
|
|
};
|
|
|
|
PyObject *PyUnicode_DecodeUTF8(const char *s,
|
|
int size,
|
|
const char *errors)
|
|
{
|
|
const char *starts = s;
|
|
int n;
|
|
int startinpos;
|
|
int endinpos;
|
|
int outpos;
|
|
const char *e;
|
|
PyUnicodeObject *unicode;
|
|
Py_UNICODE *p;
|
|
const char *errmsg = "";
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
|
|
/* Note: size will always be longer than the resulting Unicode
|
|
character count */
|
|
unicode = _PyUnicode_New(size);
|
|
if (!unicode)
|
|
return NULL;
|
|
if (size == 0)
|
|
return (PyObject *)unicode;
|
|
|
|
/* Unpack UTF-8 encoded data */
|
|
p = unicode->str;
|
|
e = s + size;
|
|
|
|
while (s < e) {
|
|
Py_UCS4 ch = (unsigned char)*s;
|
|
|
|
if (ch < 0x80) {
|
|
*p++ = (Py_UNICODE)ch;
|
|
s++;
|
|
continue;
|
|
}
|
|
|
|
n = utf8_code_length[ch];
|
|
|
|
if (s + n > e) {
|
|
errmsg = "unexpected end of data";
|
|
startinpos = s-starts;
|
|
endinpos = size;
|
|
goto utf8Error;
|
|
}
|
|
|
|
switch (n) {
|
|
|
|
case 0:
|
|
errmsg = "unexpected code byte";
|
|
startinpos = s-starts;
|
|
endinpos = startinpos+1;
|
|
goto utf8Error;
|
|
|
|
case 1:
|
|
errmsg = "internal error";
|
|
startinpos = s-starts;
|
|
endinpos = startinpos+1;
|
|
goto utf8Error;
|
|
|
|
case 2:
|
|
if ((s[1] & 0xc0) != 0x80) {
|
|
errmsg = "invalid data";
|
|
startinpos = s-starts;
|
|
endinpos = startinpos+2;
|
|
goto utf8Error;
|
|
}
|
|
ch = ((s[0] & 0x1f) << 6) + (s[1] & 0x3f);
|
|
if (ch < 0x80) {
|
|
startinpos = s-starts;
|
|
endinpos = startinpos+2;
|
|
errmsg = "illegal encoding";
|
|
goto utf8Error;
|
|
}
|
|
else
|
|
*p++ = (Py_UNICODE)ch;
|
|
break;
|
|
|
|
case 3:
|
|
if ((s[1] & 0xc0) != 0x80 ||
|
|
(s[2] & 0xc0) != 0x80) {
|
|
errmsg = "invalid data";
|
|
startinpos = s-starts;
|
|
endinpos = startinpos+3;
|
|
goto utf8Error;
|
|
}
|
|
ch = ((s[0] & 0x0f) << 12) + ((s[1] & 0x3f) << 6) + (s[2] & 0x3f);
|
|
if (ch < 0x0800) {
|
|
/* Note: UTF-8 encodings of surrogates are considered
|
|
legal UTF-8 sequences;
|
|
|
|
XXX For wide builds (UCS-4) we should probably try
|
|
to recombine the surrogates into a single code
|
|
unit.
|
|
*/
|
|
errmsg = "illegal encoding";
|
|
startinpos = s-starts;
|
|
endinpos = startinpos+3;
|
|
goto utf8Error;
|
|
}
|
|
else
|
|
*p++ = (Py_UNICODE)ch;
|
|
break;
|
|
|
|
case 4:
|
|
if ((s[1] & 0xc0) != 0x80 ||
|
|
(s[2] & 0xc0) != 0x80 ||
|
|
(s[3] & 0xc0) != 0x80) {
|
|
errmsg = "invalid data";
|
|
startinpos = s-starts;
|
|
endinpos = startinpos+4;
|
|
goto utf8Error;
|
|
}
|
|
ch = ((s[0] & 0x7) << 18) + ((s[1] & 0x3f) << 12) +
|
|
((s[2] & 0x3f) << 6) + (s[3] & 0x3f);
|
|
/* validate and convert to UTF-16 */
|
|
if ((ch < 0x10000) /* minimum value allowed for 4
|
|
byte encoding */
|
|
|| (ch > 0x10ffff)) /* maximum value allowed for
|
|
UTF-16 */
|
|
{
|
|
errmsg = "illegal encoding";
|
|
startinpos = s-starts;
|
|
endinpos = startinpos+4;
|
|
goto utf8Error;
|
|
}
|
|
#ifdef Py_UNICODE_WIDE
|
|
*p++ = (Py_UNICODE)ch;
|
|
#else
|
|
/* compute and append the two surrogates: */
|
|
|
|
/* translate from 10000..10FFFF to 0..FFFF */
|
|
ch -= 0x10000;
|
|
|
|
/* high surrogate = top 10 bits added to D800 */
|
|
*p++ = (Py_UNICODE)(0xD800 + (ch >> 10));
|
|
|
|
/* low surrogate = bottom 10 bits added to DC00 */
|
|
*p++ = (Py_UNICODE)(0xDC00 + (ch & 0x03FF));
|
|
#endif
|
|
break;
|
|
|
|
default:
|
|
/* Other sizes are only needed for UCS-4 */
|
|
errmsg = "unsupported Unicode code range";
|
|
startinpos = s-starts;
|
|
endinpos = startinpos+n;
|
|
goto utf8Error;
|
|
}
|
|
s += n;
|
|
continue;
|
|
|
|
utf8Error:
|
|
outpos = p-PyUnicode_AS_UNICODE(unicode);
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"utf8", errmsg,
|
|
starts, size, &startinpos, &endinpos, &exc, &s,
|
|
(PyObject **)&unicode, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
|
|
/* Adjust length */
|
|
if (_PyUnicode_Resize(&unicode, p - unicode->str) < 0)
|
|
goto onError;
|
|
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return (PyObject *)unicode;
|
|
|
|
onError:
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
Py_DECREF(unicode);
|
|
return NULL;
|
|
}
|
|
|
|
/* Allocation strategy: if the string is short, convert into a stack buffer
|
|
and allocate exactly as much space needed at the end. Else allocate the
|
|
maximum possible needed (4 result bytes per Unicode character), and return
|
|
the excess memory at the end.
|
|
*/
|
|
PyObject *
|
|
PyUnicode_EncodeUTF8(const Py_UNICODE *s,
|
|
int size,
|
|
const char *errors)
|
|
{
|
|
#define MAX_SHORT_UNICHARS 300 /* largest size we'll do on the stack */
|
|
|
|
int i; /* index into s of next input byte */
|
|
PyObject *v; /* result string object */
|
|
char *p; /* next free byte in output buffer */
|
|
int nallocated; /* number of result bytes allocated */
|
|
int nneeded; /* number of result bytes needed */
|
|
char stackbuf[MAX_SHORT_UNICHARS * 4];
|
|
|
|
assert(s != NULL);
|
|
assert(size >= 0);
|
|
|
|
if (size <= MAX_SHORT_UNICHARS) {
|
|
/* Write into the stack buffer; nallocated can't overflow.
|
|
* At the end, we'll allocate exactly as much heap space as it
|
|
* turns out we need.
|
|
*/
|
|
nallocated = Py_SAFE_DOWNCAST(sizeof(stackbuf), size_t, int);
|
|
v = NULL; /* will allocate after we're done */
|
|
p = stackbuf;
|
|
}
|
|
else {
|
|
/* Overallocate on the heap, and give the excess back at the end. */
|
|
nallocated = size * 4;
|
|
if (nallocated / 4 != size) /* overflow! */
|
|
return PyErr_NoMemory();
|
|
v = PyString_FromStringAndSize(NULL, nallocated);
|
|
if (v == NULL)
|
|
return NULL;
|
|
p = PyString_AS_STRING(v);
|
|
}
|
|
|
|
for (i = 0; i < size;) {
|
|
Py_UCS4 ch = s[i++];
|
|
|
|
if (ch < 0x80)
|
|
/* Encode ASCII */
|
|
*p++ = (char) ch;
|
|
|
|
else if (ch < 0x0800) {
|
|
/* Encode Latin-1 */
|
|
*p++ = (char)(0xc0 | (ch >> 6));
|
|
*p++ = (char)(0x80 | (ch & 0x3f));
|
|
}
|
|
else {
|
|
/* Encode UCS2 Unicode ordinals */
|
|
if (ch < 0x10000) {
|
|
/* Special case: check for high surrogate */
|
|
if (0xD800 <= ch && ch <= 0xDBFF && i != size) {
|
|
Py_UCS4 ch2 = s[i];
|
|
/* Check for low surrogate and combine the two to
|
|
form a UCS4 value */
|
|
if (0xDC00 <= ch2 && ch2 <= 0xDFFF) {
|
|
ch = ((ch - 0xD800) << 10 | (ch2 - 0xDC00)) + 0x10000;
|
|
i++;
|
|
goto encodeUCS4;
|
|
}
|
|
/* Fall through: handles isolated high surrogates */
|
|
}
|
|
*p++ = (char)(0xe0 | (ch >> 12));
|
|
*p++ = (char)(0x80 | ((ch >> 6) & 0x3f));
|
|
*p++ = (char)(0x80 | (ch & 0x3f));
|
|
continue;
|
|
}
|
|
encodeUCS4:
|
|
/* Encode UCS4 Unicode ordinals */
|
|
*p++ = (char)(0xf0 | (ch >> 18));
|
|
*p++ = (char)(0x80 | ((ch >> 12) & 0x3f));
|
|
*p++ = (char)(0x80 | ((ch >> 6) & 0x3f));
|
|
*p++ = (char)(0x80 | (ch & 0x3f));
|
|
}
|
|
}
|
|
|
|
if (v == NULL) {
|
|
/* This was stack allocated. */
|
|
nneeded = Py_SAFE_DOWNCAST(p - stackbuf, long, int);
|
|
assert(nneeded <= nallocated);
|
|
v = PyString_FromStringAndSize(stackbuf, nneeded);
|
|
}
|
|
else {
|
|
/* Cut back to size actually needed. */
|
|
nneeded = Py_SAFE_DOWNCAST(p - PyString_AS_STRING(v), long, int);
|
|
assert(nneeded <= nallocated);
|
|
_PyString_Resize(&v, nneeded);
|
|
}
|
|
return v;
|
|
|
|
#undef MAX_SHORT_UNICHARS
|
|
}
|
|
|
|
PyObject *PyUnicode_AsUTF8String(PyObject *unicode)
|
|
{
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
return PyUnicode_EncodeUTF8(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode),
|
|
NULL);
|
|
}
|
|
|
|
/* --- UTF-16 Codec ------------------------------------------------------- */
|
|
|
|
PyObject *
|
|
PyUnicode_DecodeUTF16(const char *s,
|
|
int size,
|
|
const char *errors,
|
|
int *byteorder)
|
|
{
|
|
const char *starts = s;
|
|
int startinpos;
|
|
int endinpos;
|
|
int outpos;
|
|
PyUnicodeObject *unicode;
|
|
Py_UNICODE *p;
|
|
const unsigned char *q, *e;
|
|
int bo = 0; /* assume native ordering by default */
|
|
const char *errmsg = "";
|
|
/* Offsets from q for retrieving byte pairs in the right order. */
|
|
#ifdef BYTEORDER_IS_LITTLE_ENDIAN
|
|
int ihi = 1, ilo = 0;
|
|
#else
|
|
int ihi = 0, ilo = 1;
|
|
#endif
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
|
|
/* Note: size will always be longer than the resulting Unicode
|
|
character count */
|
|
unicode = _PyUnicode_New(size);
|
|
if (!unicode)
|
|
return NULL;
|
|
if (size == 0)
|
|
return (PyObject *)unicode;
|
|
|
|
/* Unpack UTF-16 encoded data */
|
|
p = unicode->str;
|
|
q = (unsigned char *)s;
|
|
e = q + size;
|
|
|
|
if (byteorder)
|
|
bo = *byteorder;
|
|
|
|
/* Check for BOM marks (U+FEFF) in the input and adjust current
|
|
byte order setting accordingly. In native mode, the leading BOM
|
|
mark is skipped, in all other modes, it is copied to the output
|
|
stream as-is (giving a ZWNBSP character). */
|
|
if (bo == 0) {
|
|
const Py_UNICODE bom = (q[ihi] << 8) | q[ilo];
|
|
#ifdef BYTEORDER_IS_LITTLE_ENDIAN
|
|
if (bom == 0xFEFF) {
|
|
q += 2;
|
|
bo = -1;
|
|
}
|
|
else if (bom == 0xFFFE) {
|
|
q += 2;
|
|
bo = 1;
|
|
}
|
|
#else
|
|
if (bom == 0xFEFF) {
|
|
q += 2;
|
|
bo = 1;
|
|
}
|
|
else if (bom == 0xFFFE) {
|
|
q += 2;
|
|
bo = -1;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (bo == -1) {
|
|
/* force LE */
|
|
ihi = 1;
|
|
ilo = 0;
|
|
}
|
|
else if (bo == 1) {
|
|
/* force BE */
|
|
ihi = 0;
|
|
ilo = 1;
|
|
}
|
|
|
|
while (q < e) {
|
|
Py_UNICODE ch;
|
|
/* remaing bytes at the end? (size should be even) */
|
|
if (e-q<2) {
|
|
errmsg = "truncated data";
|
|
startinpos = ((const char *)q)-starts;
|
|
endinpos = ((const char *)e)-starts;
|
|
goto utf16Error;
|
|
/* The remaining input chars are ignored if the callback
|
|
chooses to skip the input */
|
|
}
|
|
ch = (q[ihi] << 8) | q[ilo];
|
|
|
|
q += 2;
|
|
|
|
if (ch < 0xD800 || ch > 0xDFFF) {
|
|
*p++ = ch;
|
|
continue;
|
|
}
|
|
|
|
/* UTF-16 code pair: */
|
|
if (q >= e) {
|
|
errmsg = "unexpected end of data";
|
|
startinpos = (((const char *)q)-2)-starts;
|
|
endinpos = ((const char *)e)-starts;
|
|
goto utf16Error;
|
|
}
|
|
if (0xD800 <= ch && ch <= 0xDBFF) {
|
|
Py_UNICODE ch2 = (q[ihi] << 8) | q[ilo];
|
|
q += 2;
|
|
if (0xDC00 <= ch2 && ch2 <= 0xDFFF) {
|
|
#ifndef Py_UNICODE_WIDE
|
|
*p++ = ch;
|
|
*p++ = ch2;
|
|
#else
|
|
*p++ = (((ch & 0x3FF)<<10) | (ch2 & 0x3FF)) + 0x10000;
|
|
#endif
|
|
continue;
|
|
}
|
|
else {
|
|
errmsg = "illegal UTF-16 surrogate";
|
|
startinpos = (((const char *)q)-4)-starts;
|
|
endinpos = startinpos+2;
|
|
goto utf16Error;
|
|
}
|
|
|
|
}
|
|
errmsg = "illegal encoding";
|
|
startinpos = (((const char *)q)-2)-starts;
|
|
endinpos = startinpos+2;
|
|
/* Fall through to report the error */
|
|
|
|
utf16Error:
|
|
outpos = p-PyUnicode_AS_UNICODE(unicode);
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"utf16", errmsg,
|
|
starts, size, &startinpos, &endinpos, &exc, (const char **)&q,
|
|
(PyObject **)&unicode, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
|
|
if (byteorder)
|
|
*byteorder = bo;
|
|
|
|
/* Adjust length */
|
|
if (_PyUnicode_Resize(&unicode, p - unicode->str) < 0)
|
|
goto onError;
|
|
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return (PyObject *)unicode;
|
|
|
|
onError:
|
|
Py_DECREF(unicode);
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *
|
|
PyUnicode_EncodeUTF16(const Py_UNICODE *s,
|
|
int size,
|
|
const char *errors,
|
|
int byteorder)
|
|
{
|
|
PyObject *v;
|
|
unsigned char *p;
|
|
#ifdef Py_UNICODE_WIDE
|
|
int i, pairs;
|
|
#else
|
|
const int pairs = 0;
|
|
#endif
|
|
/* Offsets from p for storing byte pairs in the right order. */
|
|
#ifdef BYTEORDER_IS_LITTLE_ENDIAN
|
|
int ihi = 1, ilo = 0;
|
|
#else
|
|
int ihi = 0, ilo = 1;
|
|
#endif
|
|
|
|
#define STORECHAR(CH) \
|
|
do { \
|
|
p[ihi] = ((CH) >> 8) & 0xff; \
|
|
p[ilo] = (CH) & 0xff; \
|
|
p += 2; \
|
|
} while(0)
|
|
|
|
#ifdef Py_UNICODE_WIDE
|
|
for (i = pairs = 0; i < size; i++)
|
|
if (s[i] >= 0x10000)
|
|
pairs++;
|
|
#endif
|
|
v = PyString_FromStringAndSize(NULL,
|
|
2 * (size + pairs + (byteorder == 0)));
|
|
if (v == NULL)
|
|
return NULL;
|
|
|
|
p = (unsigned char *)PyString_AS_STRING(v);
|
|
if (byteorder == 0)
|
|
STORECHAR(0xFEFF);
|
|
if (size == 0)
|
|
return v;
|
|
|
|
if (byteorder == -1) {
|
|
/* force LE */
|
|
ihi = 1;
|
|
ilo = 0;
|
|
}
|
|
else if (byteorder == 1) {
|
|
/* force BE */
|
|
ihi = 0;
|
|
ilo = 1;
|
|
}
|
|
|
|
while (size-- > 0) {
|
|
Py_UNICODE ch = *s++;
|
|
Py_UNICODE ch2 = 0;
|
|
#ifdef Py_UNICODE_WIDE
|
|
if (ch >= 0x10000) {
|
|
ch2 = 0xDC00 | ((ch-0x10000) & 0x3FF);
|
|
ch = 0xD800 | ((ch-0x10000) >> 10);
|
|
}
|
|
#endif
|
|
STORECHAR(ch);
|
|
if (ch2)
|
|
STORECHAR(ch2);
|
|
}
|
|
return v;
|
|
#undef STORECHAR
|
|
}
|
|
|
|
PyObject *PyUnicode_AsUTF16String(PyObject *unicode)
|
|
{
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
return PyUnicode_EncodeUTF16(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode),
|
|
NULL,
|
|
0);
|
|
}
|
|
|
|
/* --- Unicode Escape Codec ----------------------------------------------- */
|
|
|
|
static _PyUnicode_Name_CAPI *ucnhash_CAPI = NULL;
|
|
|
|
PyObject *PyUnicode_DecodeUnicodeEscape(const char *s,
|
|
int size,
|
|
const char *errors)
|
|
{
|
|
const char *starts = s;
|
|
int startinpos;
|
|
int endinpos;
|
|
int outpos;
|
|
int i;
|
|
PyUnicodeObject *v;
|
|
Py_UNICODE *p;
|
|
const char *end;
|
|
char* message;
|
|
Py_UCS4 chr = 0xffffffff; /* in case 'getcode' messes up */
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
|
|
/* Escaped strings will always be longer than the resulting
|
|
Unicode string, so we start with size here and then reduce the
|
|
length after conversion to the true value.
|
|
(but if the error callback returns a long replacement string
|
|
we'll have to allocate more space) */
|
|
v = _PyUnicode_New(size);
|
|
if (v == NULL)
|
|
goto onError;
|
|
if (size == 0)
|
|
return (PyObject *)v;
|
|
|
|
p = PyUnicode_AS_UNICODE(v);
|
|
end = s + size;
|
|
|
|
while (s < end) {
|
|
unsigned char c;
|
|
Py_UNICODE x;
|
|
int digits;
|
|
|
|
/* Non-escape characters are interpreted as Unicode ordinals */
|
|
if (*s != '\\') {
|
|
*p++ = (unsigned char) *s++;
|
|
continue;
|
|
}
|
|
|
|
startinpos = s-starts;
|
|
/* \ - Escapes */
|
|
s++;
|
|
switch (*s++) {
|
|
|
|
/* \x escapes */
|
|
case '\n': break;
|
|
case '\\': *p++ = '\\'; break;
|
|
case '\'': *p++ = '\''; break;
|
|
case '\"': *p++ = '\"'; break;
|
|
case 'b': *p++ = '\b'; break;
|
|
case 'f': *p++ = '\014'; break; /* FF */
|
|
case 't': *p++ = '\t'; break;
|
|
case 'n': *p++ = '\n'; break;
|
|
case 'r': *p++ = '\r'; break;
|
|
case 'v': *p++ = '\013'; break; /* VT */
|
|
case 'a': *p++ = '\007'; break; /* BEL, not classic C */
|
|
|
|
/* \OOO (octal) escapes */
|
|
case '0': case '1': case '2': case '3':
|
|
case '4': case '5': case '6': case '7':
|
|
x = s[-1] - '0';
|
|
if ('0' <= *s && *s <= '7') {
|
|
x = (x<<3) + *s++ - '0';
|
|
if ('0' <= *s && *s <= '7')
|
|
x = (x<<3) + *s++ - '0';
|
|
}
|
|
*p++ = x;
|
|
break;
|
|
|
|
/* hex escapes */
|
|
/* \xXX */
|
|
case 'x':
|
|
digits = 2;
|
|
message = "truncated \\xXX escape";
|
|
goto hexescape;
|
|
|
|
/* \uXXXX */
|
|
case 'u':
|
|
digits = 4;
|
|
message = "truncated \\uXXXX escape";
|
|
goto hexescape;
|
|
|
|
/* \UXXXXXXXX */
|
|
case 'U':
|
|
digits = 8;
|
|
message = "truncated \\UXXXXXXXX escape";
|
|
hexescape:
|
|
chr = 0;
|
|
outpos = p-PyUnicode_AS_UNICODE(v);
|
|
if (s+digits>end) {
|
|
endinpos = size;
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"unicodeescape", "end of string in escape sequence",
|
|
starts, size, &startinpos, &endinpos, &exc, &s,
|
|
(PyObject **)&v, &outpos, &p))
|
|
goto onError;
|
|
goto nextByte;
|
|
}
|
|
for (i = 0; i < digits; ++i) {
|
|
c = (unsigned char) s[i];
|
|
if (!isxdigit(c)) {
|
|
endinpos = (s+i+1)-starts;
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"unicodeescape", message,
|
|
starts, size, &startinpos, &endinpos, &exc, &s,
|
|
(PyObject **)&v, &outpos, &p))
|
|
goto onError;
|
|
goto nextByte;
|
|
}
|
|
chr = (chr<<4) & ~0xF;
|
|
if (c >= '0' && c <= '9')
|
|
chr += c - '0';
|
|
else if (c >= 'a' && c <= 'f')
|
|
chr += 10 + c - 'a';
|
|
else
|
|
chr += 10 + c - 'A';
|
|
}
|
|
s += i;
|
|
if (chr == 0xffffffff && PyErr_Occurred())
|
|
/* _decoding_error will have already written into the
|
|
target buffer. */
|
|
break;
|
|
store:
|
|
/* when we get here, chr is a 32-bit unicode character */
|
|
if (chr <= 0xffff)
|
|
/* UCS-2 character */
|
|
*p++ = (Py_UNICODE) chr;
|
|
else if (chr <= 0x10ffff) {
|
|
/* UCS-4 character. Either store directly, or as
|
|
surrogate pair. */
|
|
#ifdef Py_UNICODE_WIDE
|
|
*p++ = chr;
|
|
#else
|
|
chr -= 0x10000L;
|
|
*p++ = 0xD800 + (Py_UNICODE) (chr >> 10);
|
|
*p++ = 0xDC00 + (Py_UNICODE) (chr & 0x03FF);
|
|
#endif
|
|
} else {
|
|
endinpos = s-starts;
|
|
outpos = p-PyUnicode_AS_UNICODE(v);
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"unicodeescape", "illegal Unicode character",
|
|
starts, size, &startinpos, &endinpos, &exc, &s,
|
|
(PyObject **)&v, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
break;
|
|
|
|
/* \N{name} */
|
|
case 'N':
|
|
message = "malformed \\N character escape";
|
|
if (ucnhash_CAPI == NULL) {
|
|
/* load the unicode data module */
|
|
PyObject *m, *v;
|
|
m = PyImport_ImportModule("unicodedata");
|
|
if (m == NULL)
|
|
goto ucnhashError;
|
|
v = PyObject_GetAttrString(m, "ucnhash_CAPI");
|
|
Py_DECREF(m);
|
|
if (v == NULL)
|
|
goto ucnhashError;
|
|
ucnhash_CAPI = PyCObject_AsVoidPtr(v);
|
|
Py_DECREF(v);
|
|
if (ucnhash_CAPI == NULL)
|
|
goto ucnhashError;
|
|
}
|
|
if (*s == '{') {
|
|
const char *start = s+1;
|
|
/* look for the closing brace */
|
|
while (*s != '}' && s < end)
|
|
s++;
|
|
if (s > start && s < end && *s == '}') {
|
|
/* found a name. look it up in the unicode database */
|
|
message = "unknown Unicode character name";
|
|
s++;
|
|
if (ucnhash_CAPI->getcode(start, s-start-1, &chr))
|
|
goto store;
|
|
}
|
|
}
|
|
endinpos = s-starts;
|
|
outpos = p-PyUnicode_AS_UNICODE(v);
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"unicodeescape", message,
|
|
starts, size, &startinpos, &endinpos, &exc, &s,
|
|
(PyObject **)&v, &outpos, &p))
|
|
goto onError;
|
|
break;
|
|
|
|
default:
|
|
if (s > end) {
|
|
message = "\\ at end of string";
|
|
s--;
|
|
endinpos = s-starts;
|
|
outpos = p-PyUnicode_AS_UNICODE(v);
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"unicodeescape", message,
|
|
starts, size, &startinpos, &endinpos, &exc, &s,
|
|
(PyObject **)&v, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
else {
|
|
*p++ = '\\';
|
|
*p++ = (unsigned char)s[-1];
|
|
}
|
|
break;
|
|
}
|
|
nextByte:
|
|
;
|
|
}
|
|
if (_PyUnicode_Resize(&v, (int)(p - PyUnicode_AS_UNICODE(v))) < 0)
|
|
goto onError;
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return (PyObject *)v;
|
|
|
|
ucnhashError:
|
|
PyErr_SetString(
|
|
PyExc_UnicodeError,
|
|
"\\N escapes not supported (can't load unicodedata module)"
|
|
);
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return NULL;
|
|
|
|
onError:
|
|
Py_XDECREF(v);
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return NULL;
|
|
}
|
|
|
|
/* Return a Unicode-Escape string version of the Unicode object.
|
|
|
|
If quotes is true, the string is enclosed in u"" or u'' quotes as
|
|
appropriate.
|
|
|
|
*/
|
|
|
|
static const Py_UNICODE *findchar(const Py_UNICODE *s,
|
|
int size,
|
|
Py_UNICODE ch);
|
|
|
|
static
|
|
PyObject *unicodeescape_string(const Py_UNICODE *s,
|
|
int size,
|
|
int quotes)
|
|
{
|
|
PyObject *repr;
|
|
char *p;
|
|
|
|
static const char *hexdigit = "0123456789abcdef";
|
|
|
|
repr = PyString_FromStringAndSize(NULL, 2 + 6*size + 1);
|
|
if (repr == NULL)
|
|
return NULL;
|
|
|
|
p = PyString_AS_STRING(repr);
|
|
|
|
if (quotes) {
|
|
*p++ = 'u';
|
|
*p++ = (findchar(s, size, '\'') &&
|
|
!findchar(s, size, '"')) ? '"' : '\'';
|
|
}
|
|
while (size-- > 0) {
|
|
Py_UNICODE ch = *s++;
|
|
|
|
/* Escape quotes */
|
|
if (quotes &&
|
|
(ch == (Py_UNICODE) PyString_AS_STRING(repr)[1] || ch == '\\')) {
|
|
*p++ = '\\';
|
|
*p++ = (char) ch;
|
|
continue;
|
|
}
|
|
|
|
#ifdef Py_UNICODE_WIDE
|
|
/* Map 21-bit characters to '\U00xxxxxx' */
|
|
else if (ch >= 0x10000) {
|
|
int offset = p - PyString_AS_STRING(repr);
|
|
|
|
/* Resize the string if necessary */
|
|
if (offset + 12 > PyString_GET_SIZE(repr)) {
|
|
if (_PyString_Resize(&repr, PyString_GET_SIZE(repr) + 100))
|
|
return NULL;
|
|
p = PyString_AS_STRING(repr) + offset;
|
|
}
|
|
|
|
*p++ = '\\';
|
|
*p++ = 'U';
|
|
*p++ = hexdigit[(ch >> 28) & 0x0000000F];
|
|
*p++ = hexdigit[(ch >> 24) & 0x0000000F];
|
|
*p++ = hexdigit[(ch >> 20) & 0x0000000F];
|
|
*p++ = hexdigit[(ch >> 16) & 0x0000000F];
|
|
*p++ = hexdigit[(ch >> 12) & 0x0000000F];
|
|
*p++ = hexdigit[(ch >> 8) & 0x0000000F];
|
|
*p++ = hexdigit[(ch >> 4) & 0x0000000F];
|
|
*p++ = hexdigit[ch & 0x0000000F];
|
|
continue;
|
|
}
|
|
#endif
|
|
/* Map UTF-16 surrogate pairs to Unicode \UXXXXXXXX escapes */
|
|
else if (ch >= 0xD800 && ch < 0xDC00) {
|
|
Py_UNICODE ch2;
|
|
Py_UCS4 ucs;
|
|
|
|
ch2 = *s++;
|
|
size--;
|
|
if (ch2 >= 0xDC00 && ch2 <= 0xDFFF) {
|
|
ucs = (((ch & 0x03FF) << 10) | (ch2 & 0x03FF)) + 0x00010000;
|
|
*p++ = '\\';
|
|
*p++ = 'U';
|
|
*p++ = hexdigit[(ucs >> 28) & 0x0000000F];
|
|
*p++ = hexdigit[(ucs >> 24) & 0x0000000F];
|
|
*p++ = hexdigit[(ucs >> 20) & 0x0000000F];
|
|
*p++ = hexdigit[(ucs >> 16) & 0x0000000F];
|
|
*p++ = hexdigit[(ucs >> 12) & 0x0000000F];
|
|
*p++ = hexdigit[(ucs >> 8) & 0x0000000F];
|
|
*p++ = hexdigit[(ucs >> 4) & 0x0000000F];
|
|
*p++ = hexdigit[ucs & 0x0000000F];
|
|
continue;
|
|
}
|
|
/* Fall through: isolated surrogates are copied as-is */
|
|
s--;
|
|
size++;
|
|
}
|
|
|
|
/* Map 16-bit characters to '\uxxxx' */
|
|
if (ch >= 256) {
|
|
*p++ = '\\';
|
|
*p++ = 'u';
|
|
*p++ = hexdigit[(ch >> 12) & 0x000F];
|
|
*p++ = hexdigit[(ch >> 8) & 0x000F];
|
|
*p++ = hexdigit[(ch >> 4) & 0x000F];
|
|
*p++ = hexdigit[ch & 0x000F];
|
|
}
|
|
|
|
/* Map special whitespace to '\t', \n', '\r' */
|
|
else if (ch == '\t') {
|
|
*p++ = '\\';
|
|
*p++ = 't';
|
|
}
|
|
else if (ch == '\n') {
|
|
*p++ = '\\';
|
|
*p++ = 'n';
|
|
}
|
|
else if (ch == '\r') {
|
|
*p++ = '\\';
|
|
*p++ = 'r';
|
|
}
|
|
|
|
/* Map non-printable US ASCII to '\xhh' */
|
|
else if (ch < ' ' || ch >= 0x7F) {
|
|
*p++ = '\\';
|
|
*p++ = 'x';
|
|
*p++ = hexdigit[(ch >> 4) & 0x000F];
|
|
*p++ = hexdigit[ch & 0x000F];
|
|
}
|
|
|
|
/* Copy everything else as-is */
|
|
else
|
|
*p++ = (char) ch;
|
|
}
|
|
if (quotes)
|
|
*p++ = PyString_AS_STRING(repr)[1];
|
|
|
|
*p = '\0';
|
|
_PyString_Resize(&repr, p - PyString_AS_STRING(repr));
|
|
return repr;
|
|
}
|
|
|
|
PyObject *PyUnicode_EncodeUnicodeEscape(const Py_UNICODE *s,
|
|
int size)
|
|
{
|
|
return unicodeescape_string(s, size, 0);
|
|
}
|
|
|
|
PyObject *PyUnicode_AsUnicodeEscapeString(PyObject *unicode)
|
|
{
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
return PyUnicode_EncodeUnicodeEscape(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode));
|
|
}
|
|
|
|
/* --- Raw Unicode Escape Codec ------------------------------------------- */
|
|
|
|
PyObject *PyUnicode_DecodeRawUnicodeEscape(const char *s,
|
|
int size,
|
|
const char *errors)
|
|
{
|
|
const char *starts = s;
|
|
int startinpos;
|
|
int endinpos;
|
|
int outpos;
|
|
PyUnicodeObject *v;
|
|
Py_UNICODE *p;
|
|
const char *end;
|
|
const char *bs;
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
|
|
/* Escaped strings will always be longer than the resulting
|
|
Unicode string, so we start with size here and then reduce the
|
|
length after conversion to the true value. (But decoding error
|
|
handler might have to resize the string) */
|
|
v = _PyUnicode_New(size);
|
|
if (v == NULL)
|
|
goto onError;
|
|
if (size == 0)
|
|
return (PyObject *)v;
|
|
p = PyUnicode_AS_UNICODE(v);
|
|
end = s + size;
|
|
while (s < end) {
|
|
unsigned char c;
|
|
Py_UCS4 x;
|
|
int i;
|
|
int count;
|
|
|
|
/* Non-escape characters are interpreted as Unicode ordinals */
|
|
if (*s != '\\') {
|
|
*p++ = (unsigned char)*s++;
|
|
continue;
|
|
}
|
|
startinpos = s-starts;
|
|
|
|
/* \u-escapes are only interpreted iff the number of leading
|
|
backslashes if odd */
|
|
bs = s;
|
|
for (;s < end;) {
|
|
if (*s != '\\')
|
|
break;
|
|
*p++ = (unsigned char)*s++;
|
|
}
|
|
if (((s - bs) & 1) == 0 ||
|
|
s >= end ||
|
|
(*s != 'u' && *s != 'U')) {
|
|
continue;
|
|
}
|
|
p--;
|
|
count = *s=='u' ? 4 : 8;
|
|
s++;
|
|
|
|
/* \uXXXX with 4 hex digits, \Uxxxxxxxx with 8 */
|
|
outpos = p-PyUnicode_AS_UNICODE(v);
|
|
for (x = 0, i = 0; i < count; ++i, ++s) {
|
|
c = (unsigned char)*s;
|
|
if (!isxdigit(c)) {
|
|
endinpos = s-starts;
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"rawunicodeescape", "truncated \\uXXXX",
|
|
starts, size, &startinpos, &endinpos, &exc, &s,
|
|
(PyObject **)&v, &outpos, &p))
|
|
goto onError;
|
|
goto nextByte;
|
|
}
|
|
x = (x<<4) & ~0xF;
|
|
if (c >= '0' && c <= '9')
|
|
x += c - '0';
|
|
else if (c >= 'a' && c <= 'f')
|
|
x += 10 + c - 'a';
|
|
else
|
|
x += 10 + c - 'A';
|
|
}
|
|
#ifndef Py_UNICODE_WIDE
|
|
if (x > 0x10000) {
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"rawunicodeescape", "\\Uxxxxxxxx out of range",
|
|
starts, size, &startinpos, &endinpos, &exc, &s,
|
|
(PyObject **)&v, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
#endif
|
|
*p++ = x;
|
|
nextByte:
|
|
;
|
|
}
|
|
if (_PyUnicode_Resize(&v, (int)(p - PyUnicode_AS_UNICODE(v))) < 0)
|
|
goto onError;
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return (PyObject *)v;
|
|
|
|
onError:
|
|
Py_XDECREF(v);
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_EncodeRawUnicodeEscape(const Py_UNICODE *s,
|
|
int size)
|
|
{
|
|
PyObject *repr;
|
|
char *p;
|
|
char *q;
|
|
|
|
static const char *hexdigit = "0123456789abcdef";
|
|
|
|
#ifdef Py_UNICODE_WIDE
|
|
repr = PyString_FromStringAndSize(NULL, 10 * size);
|
|
#else
|
|
repr = PyString_FromStringAndSize(NULL, 6 * size);
|
|
#endif
|
|
if (repr == NULL)
|
|
return NULL;
|
|
if (size == 0)
|
|
return repr;
|
|
|
|
p = q = PyString_AS_STRING(repr);
|
|
while (size-- > 0) {
|
|
Py_UNICODE ch = *s++;
|
|
#ifdef Py_UNICODE_WIDE
|
|
/* Map 32-bit characters to '\Uxxxxxxxx' */
|
|
if (ch >= 0x10000) {
|
|
*p++ = '\\';
|
|
*p++ = 'U';
|
|
*p++ = hexdigit[(ch >> 28) & 0xf];
|
|
*p++ = hexdigit[(ch >> 24) & 0xf];
|
|
*p++ = hexdigit[(ch >> 20) & 0xf];
|
|
*p++ = hexdigit[(ch >> 16) & 0xf];
|
|
*p++ = hexdigit[(ch >> 12) & 0xf];
|
|
*p++ = hexdigit[(ch >> 8) & 0xf];
|
|
*p++ = hexdigit[(ch >> 4) & 0xf];
|
|
*p++ = hexdigit[ch & 15];
|
|
}
|
|
else
|
|
#endif
|
|
/* Map 16-bit characters to '\uxxxx' */
|
|
if (ch >= 256) {
|
|
*p++ = '\\';
|
|
*p++ = 'u';
|
|
*p++ = hexdigit[(ch >> 12) & 0xf];
|
|
*p++ = hexdigit[(ch >> 8) & 0xf];
|
|
*p++ = hexdigit[(ch >> 4) & 0xf];
|
|
*p++ = hexdigit[ch & 15];
|
|
}
|
|
/* Copy everything else as-is */
|
|
else
|
|
*p++ = (char) ch;
|
|
}
|
|
*p = '\0';
|
|
_PyString_Resize(&repr, p - q);
|
|
return repr;
|
|
}
|
|
|
|
PyObject *PyUnicode_AsRawUnicodeEscapeString(PyObject *unicode)
|
|
{
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
return PyUnicode_EncodeRawUnicodeEscape(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode));
|
|
}
|
|
|
|
/* --- Latin-1 Codec ------------------------------------------------------ */
|
|
|
|
PyObject *PyUnicode_DecodeLatin1(const char *s,
|
|
int size,
|
|
const char *errors)
|
|
{
|
|
PyUnicodeObject *v;
|
|
Py_UNICODE *p;
|
|
|
|
/* Latin-1 is equivalent to the first 256 ordinals in Unicode. */
|
|
if (size == 1) {
|
|
Py_UNICODE r = *(unsigned char*)s;
|
|
return PyUnicode_FromUnicode(&r, 1);
|
|
}
|
|
|
|
v = _PyUnicode_New(size);
|
|
if (v == NULL)
|
|
goto onError;
|
|
if (size == 0)
|
|
return (PyObject *)v;
|
|
p = PyUnicode_AS_UNICODE(v);
|
|
while (size-- > 0)
|
|
*p++ = (unsigned char)*s++;
|
|
return (PyObject *)v;
|
|
|
|
onError:
|
|
Py_XDECREF(v);
|
|
return NULL;
|
|
}
|
|
|
|
/* create or adjust a UnicodeEncodeError */
|
|
static void make_encode_exception(PyObject **exceptionObject,
|
|
const char *encoding,
|
|
const Py_UNICODE *unicode, int size,
|
|
int startpos, int endpos,
|
|
const char *reason)
|
|
{
|
|
if (*exceptionObject == NULL) {
|
|
*exceptionObject = PyUnicodeEncodeError_Create(
|
|
encoding, unicode, size, startpos, endpos, reason);
|
|
}
|
|
else {
|
|
if (PyUnicodeEncodeError_SetStart(*exceptionObject, startpos))
|
|
goto onError;
|
|
if (PyUnicodeEncodeError_SetEnd(*exceptionObject, endpos))
|
|
goto onError;
|
|
if (PyUnicodeEncodeError_SetReason(*exceptionObject, reason))
|
|
goto onError;
|
|
return;
|
|
onError:
|
|
Py_DECREF(*exceptionObject);
|
|
*exceptionObject = NULL;
|
|
}
|
|
}
|
|
|
|
/* raises a UnicodeEncodeError */
|
|
static void raise_encode_exception(PyObject **exceptionObject,
|
|
const char *encoding,
|
|
const Py_UNICODE *unicode, int size,
|
|
int startpos, int endpos,
|
|
const char *reason)
|
|
{
|
|
make_encode_exception(exceptionObject,
|
|
encoding, unicode, size, startpos, endpos, reason);
|
|
if (*exceptionObject != NULL)
|
|
PyCodec_StrictErrors(*exceptionObject);
|
|
}
|
|
|
|
/* error handling callback helper:
|
|
build arguments, call the callback and check the arguments,
|
|
put the result into newpos and return the replacement string, which
|
|
has to be freed by the caller */
|
|
static PyObject *unicode_encode_call_errorhandler(const char *errors,
|
|
PyObject **errorHandler,
|
|
const char *encoding, const char *reason,
|
|
const Py_UNICODE *unicode, int size, PyObject **exceptionObject,
|
|
int startpos, int endpos,
|
|
int *newpos)
|
|
{
|
|
static char *argparse = "O!i;encoding error handler must return (unicode, int) tuple";
|
|
|
|
PyObject *restuple;
|
|
PyObject *resunicode;
|
|
|
|
if (*errorHandler == NULL) {
|
|
*errorHandler = PyCodec_LookupError(errors);
|
|
if (*errorHandler == NULL)
|
|
return NULL;
|
|
}
|
|
|
|
make_encode_exception(exceptionObject,
|
|
encoding, unicode, size, startpos, endpos, reason);
|
|
if (*exceptionObject == NULL)
|
|
return NULL;
|
|
|
|
restuple = PyObject_CallFunctionObjArgs(
|
|
*errorHandler, *exceptionObject, NULL);
|
|
if (restuple == NULL)
|
|
return NULL;
|
|
if (!PyTuple_Check(restuple)) {
|
|
PyErr_Format(PyExc_TypeError, &argparse[4]);
|
|
Py_DECREF(restuple);
|
|
return NULL;
|
|
}
|
|
if (!PyArg_ParseTuple(restuple, argparse, &PyUnicode_Type,
|
|
&resunicode, newpos)) {
|
|
Py_DECREF(restuple);
|
|
return NULL;
|
|
}
|
|
if (*newpos<0)
|
|
*newpos = size+*newpos;
|
|
if (*newpos<0 || *newpos>size) {
|
|
PyErr_Format(PyExc_IndexError, "position %d from error handler out of bounds", *newpos);
|
|
Py_DECREF(restuple);
|
|
return NULL;
|
|
}
|
|
Py_INCREF(resunicode);
|
|
Py_DECREF(restuple);
|
|
return resunicode;
|
|
}
|
|
|
|
static PyObject *unicode_encode_ucs1(const Py_UNICODE *p,
|
|
int size,
|
|
const char *errors,
|
|
int limit)
|
|
{
|
|
/* output object */
|
|
PyObject *res;
|
|
/* pointers to the beginning and end+1 of input */
|
|
const Py_UNICODE *startp = p;
|
|
const Py_UNICODE *endp = p + size;
|
|
/* pointer to the beginning of the unencodable characters */
|
|
/* const Py_UNICODE *badp = NULL; */
|
|
/* pointer into the output */
|
|
char *str;
|
|
/* current output position */
|
|
int respos = 0;
|
|
int ressize;
|
|
char *encoding = (limit == 256) ? "latin-1" : "ascii";
|
|
char *reason = (limit == 256) ? "ordinal not in range(256)" : "ordinal not in range(128)";
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
/* the following variable is used for caching string comparisons
|
|
* -1=not initialized, 0=unknown, 1=strict, 2=replace, 3=ignore, 4=xmlcharrefreplace */
|
|
int known_errorHandler = -1;
|
|
|
|
/* allocate enough for a simple encoding without
|
|
replacements, if we need more, we'll resize */
|
|
res = PyString_FromStringAndSize(NULL, size);
|
|
if (res == NULL)
|
|
goto onError;
|
|
if (size == 0)
|
|
return res;
|
|
str = PyString_AS_STRING(res);
|
|
ressize = size;
|
|
|
|
while (p<endp) {
|
|
Py_UNICODE c = *p;
|
|
|
|
/* can we encode this? */
|
|
if (c<limit) {
|
|
/* no overflow check, because we know that the space is enough */
|
|
*str++ = (char)c;
|
|
++p;
|
|
}
|
|
else {
|
|
int unicodepos = p-startp;
|
|
int requiredsize;
|
|
PyObject *repunicode;
|
|
int repsize;
|
|
int newpos;
|
|
int respos;
|
|
Py_UNICODE *uni2;
|
|
/* startpos for collecting unencodable chars */
|
|
const Py_UNICODE *collstart = p;
|
|
const Py_UNICODE *collend = p;
|
|
/* find all unecodable characters */
|
|
while ((collend < endp) && ((*collend)>=limit))
|
|
++collend;
|
|
/* cache callback name lookup (if not done yet, i.e. it's the first error) */
|
|
if (known_errorHandler==-1) {
|
|
if ((errors==NULL) || (!strcmp(errors, "strict")))
|
|
known_errorHandler = 1;
|
|
else if (!strcmp(errors, "replace"))
|
|
known_errorHandler = 2;
|
|
else if (!strcmp(errors, "ignore"))
|
|
known_errorHandler = 3;
|
|
else if (!strcmp(errors, "xmlcharrefreplace"))
|
|
known_errorHandler = 4;
|
|
else
|
|
known_errorHandler = 0;
|
|
}
|
|
switch (known_errorHandler) {
|
|
case 1: /* strict */
|
|
raise_encode_exception(&exc, encoding, startp, size, collstart-startp, collend-startp, reason);
|
|
goto onError;
|
|
case 2: /* replace */
|
|
while (collstart++<collend)
|
|
*str++ = '?'; /* fall through */
|
|
case 3: /* ignore */
|
|
p = collend;
|
|
break;
|
|
case 4: /* xmlcharrefreplace */
|
|
respos = str-PyString_AS_STRING(res);
|
|
/* determine replacement size (temporarily (mis)uses p) */
|
|
for (p = collstart, repsize = 0; p < collend; ++p) {
|
|
if (*p<10)
|
|
repsize += 2+1+1;
|
|
else if (*p<100)
|
|
repsize += 2+2+1;
|
|
else if (*p<1000)
|
|
repsize += 2+3+1;
|
|
else if (*p<10000)
|
|
repsize += 2+4+1;
|
|
#ifndef Py_UNICODE_WIDE
|
|
else
|
|
repsize += 2+5+1;
|
|
#else
|
|
else if (*p<100000)
|
|
repsize += 2+5+1;
|
|
else if (*p<1000000)
|
|
repsize += 2+6+1;
|
|
else
|
|
repsize += 2+7+1;
|
|
#endif
|
|
}
|
|
requiredsize = respos+repsize+(endp-collend);
|
|
if (requiredsize > ressize) {
|
|
if (requiredsize<2*ressize)
|
|
requiredsize = 2*ressize;
|
|
if (_PyString_Resize(&res, requiredsize))
|
|
goto onError;
|
|
str = PyString_AS_STRING(res) + respos;
|
|
ressize = requiredsize;
|
|
}
|
|
/* generate replacement (temporarily (mis)uses p) */
|
|
for (p = collstart; p < collend; ++p) {
|
|
str += sprintf(str, "&#%d;", (int)*p);
|
|
}
|
|
p = collend;
|
|
break;
|
|
default:
|
|
repunicode = unicode_encode_call_errorhandler(errors, &errorHandler,
|
|
encoding, reason, startp, size, &exc,
|
|
collstart-startp, collend-startp, &newpos);
|
|
if (repunicode == NULL)
|
|
goto onError;
|
|
/* need more space? (at least enough for what we
|
|
have+the replacement+the rest of the string, so
|
|
we won't have to check space for encodable characters) */
|
|
respos = str-PyString_AS_STRING(res);
|
|
repsize = PyUnicode_GET_SIZE(repunicode);
|
|
requiredsize = respos+repsize+(endp-collend);
|
|
if (requiredsize > ressize) {
|
|
if (requiredsize<2*ressize)
|
|
requiredsize = 2*ressize;
|
|
if (_PyString_Resize(&res, requiredsize)) {
|
|
Py_DECREF(repunicode);
|
|
goto onError;
|
|
}
|
|
str = PyString_AS_STRING(res) + respos;
|
|
ressize = requiredsize;
|
|
}
|
|
/* check if there is anything unencodable in the replacement
|
|
and copy it to the output */
|
|
for (uni2 = PyUnicode_AS_UNICODE(repunicode);repsize-->0; ++uni2, ++str) {
|
|
c = *uni2;
|
|
if (c >= limit) {
|
|
raise_encode_exception(&exc, encoding, startp, size,
|
|
unicodepos, unicodepos+1, reason);
|
|
Py_DECREF(repunicode);
|
|
goto onError;
|
|
}
|
|
*str = (char)c;
|
|
}
|
|
p = startp + newpos;
|
|
Py_DECREF(repunicode);
|
|
}
|
|
}
|
|
}
|
|
/* Resize if we allocated to much */
|
|
respos = str-PyString_AS_STRING(res);
|
|
if (respos<ressize)
|
|
/* If this falls res will be NULL */
|
|
_PyString_Resize(&res, respos);
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return res;
|
|
|
|
onError:
|
|
Py_XDECREF(res);
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_EncodeLatin1(const Py_UNICODE *p,
|
|
int size,
|
|
const char *errors)
|
|
{
|
|
return unicode_encode_ucs1(p, size, errors, 256);
|
|
}
|
|
|
|
PyObject *PyUnicode_AsLatin1String(PyObject *unicode)
|
|
{
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
return PyUnicode_EncodeLatin1(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode),
|
|
NULL);
|
|
}
|
|
|
|
/* --- 7-bit ASCII Codec -------------------------------------------------- */
|
|
|
|
PyObject *PyUnicode_DecodeASCII(const char *s,
|
|
int size,
|
|
const char *errors)
|
|
{
|
|
const char *starts = s;
|
|
PyUnicodeObject *v;
|
|
Py_UNICODE *p;
|
|
int startinpos;
|
|
int endinpos;
|
|
int outpos;
|
|
const char *e;
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
|
|
/* ASCII is equivalent to the first 128 ordinals in Unicode. */
|
|
if (size == 1 && *(unsigned char*)s < 128) {
|
|
Py_UNICODE r = *(unsigned char*)s;
|
|
return PyUnicode_FromUnicode(&r, 1);
|
|
}
|
|
|
|
v = _PyUnicode_New(size);
|
|
if (v == NULL)
|
|
goto onError;
|
|
if (size == 0)
|
|
return (PyObject *)v;
|
|
p = PyUnicode_AS_UNICODE(v);
|
|
e = s + size;
|
|
while (s < e) {
|
|
register unsigned char c = (unsigned char)*s;
|
|
if (c < 128) {
|
|
*p++ = c;
|
|
++s;
|
|
}
|
|
else {
|
|
startinpos = s-starts;
|
|
endinpos = startinpos + 1;
|
|
outpos = p - (Py_UNICODE *)PyUnicode_AS_UNICODE(v);
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"ascii", "ordinal not in range(128)",
|
|
starts, size, &startinpos, &endinpos, &exc, &s,
|
|
(PyObject **)&v, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
}
|
|
if (p - PyUnicode_AS_UNICODE(v) < PyString_GET_SIZE(v))
|
|
if (_PyUnicode_Resize(&v, (int)(p - PyUnicode_AS_UNICODE(v))) < 0)
|
|
goto onError;
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return (PyObject *)v;
|
|
|
|
onError:
|
|
Py_XDECREF(v);
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_EncodeASCII(const Py_UNICODE *p,
|
|
int size,
|
|
const char *errors)
|
|
{
|
|
return unicode_encode_ucs1(p, size, errors, 128);
|
|
}
|
|
|
|
PyObject *PyUnicode_AsASCIIString(PyObject *unicode)
|
|
{
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
return PyUnicode_EncodeASCII(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode),
|
|
NULL);
|
|
}
|
|
|
|
#if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T)
|
|
|
|
/* --- MBCS codecs for Windows -------------------------------------------- */
|
|
|
|
PyObject *PyUnicode_DecodeMBCS(const char *s,
|
|
int size,
|
|
const char *errors)
|
|
{
|
|
PyUnicodeObject *v;
|
|
Py_UNICODE *p;
|
|
|
|
/* First get the size of the result */
|
|
DWORD usize = MultiByteToWideChar(CP_ACP, 0, s, size, NULL, 0);
|
|
if (size > 0 && usize==0)
|
|
return PyErr_SetFromWindowsErrWithFilename(0, NULL);
|
|
|
|
v = _PyUnicode_New(usize);
|
|
if (v == NULL)
|
|
return NULL;
|
|
if (usize == 0)
|
|
return (PyObject *)v;
|
|
p = PyUnicode_AS_UNICODE(v);
|
|
if (0 == MultiByteToWideChar(CP_ACP, 0, s, size, p, usize)) {
|
|
Py_DECREF(v);
|
|
return PyErr_SetFromWindowsErrWithFilename(0, NULL);
|
|
}
|
|
|
|
return (PyObject *)v;
|
|
}
|
|
|
|
PyObject *PyUnicode_EncodeMBCS(const Py_UNICODE *p,
|
|
int size,
|
|
const char *errors)
|
|
{
|
|
PyObject *repr;
|
|
char *s;
|
|
DWORD mbcssize;
|
|
|
|
/* If there are no characters, bail now! */
|
|
if (size==0)
|
|
return PyString_FromString("");
|
|
|
|
/* First get the size of the result */
|
|
mbcssize = WideCharToMultiByte(CP_ACP, 0, p, size, NULL, 0, NULL, NULL);
|
|
if (mbcssize==0)
|
|
return PyErr_SetFromWindowsErrWithFilename(0, NULL);
|
|
|
|
repr = PyString_FromStringAndSize(NULL, mbcssize);
|
|
if (repr == NULL)
|
|
return NULL;
|
|
if (mbcssize == 0)
|
|
return repr;
|
|
|
|
/* Do the conversion */
|
|
s = PyString_AS_STRING(repr);
|
|
if (0 == WideCharToMultiByte(CP_ACP, 0, p, size, s, mbcssize, NULL, NULL)) {
|
|
Py_DECREF(repr);
|
|
return PyErr_SetFromWindowsErrWithFilename(0, NULL);
|
|
}
|
|
return repr;
|
|
}
|
|
|
|
PyObject *PyUnicode_AsMBCSString(PyObject *unicode)
|
|
{
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
return PyUnicode_EncodeMBCS(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode),
|
|
NULL);
|
|
}
|
|
|
|
#endif /* MS_WINDOWS */
|
|
|
|
/* --- Character Mapping Codec -------------------------------------------- */
|
|
|
|
PyObject *PyUnicode_DecodeCharmap(const char *s,
|
|
int size,
|
|
PyObject *mapping,
|
|
const char *errors)
|
|
{
|
|
const char *starts = s;
|
|
int startinpos;
|
|
int endinpos;
|
|
int outpos;
|
|
const char *e;
|
|
PyUnicodeObject *v;
|
|
Py_UNICODE *p;
|
|
int extrachars = 0;
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
|
|
/* Default to Latin-1 */
|
|
if (mapping == NULL)
|
|
return PyUnicode_DecodeLatin1(s, size, errors);
|
|
|
|
v = _PyUnicode_New(size);
|
|
if (v == NULL)
|
|
goto onError;
|
|
if (size == 0)
|
|
return (PyObject *)v;
|
|
p = PyUnicode_AS_UNICODE(v);
|
|
e = s + size;
|
|
while (s < e) {
|
|
unsigned char ch = *s;
|
|
PyObject *w, *x;
|
|
|
|
/* Get mapping (char ordinal -> integer, Unicode char or None) */
|
|
w = PyInt_FromLong((long)ch);
|
|
if (w == NULL)
|
|
goto onError;
|
|
x = PyObject_GetItem(mapping, w);
|
|
Py_DECREF(w);
|
|
if (x == NULL) {
|
|
if (PyErr_ExceptionMatches(PyExc_LookupError)) {
|
|
/* No mapping found means: mapping is undefined. */
|
|
PyErr_Clear();
|
|
x = Py_None;
|
|
Py_INCREF(x);
|
|
} else
|
|
goto onError;
|
|
}
|
|
|
|
/* Apply mapping */
|
|
if (PyInt_Check(x)) {
|
|
long value = PyInt_AS_LONG(x);
|
|
if (value < 0 || value > 65535) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"character mapping must be in range(65536)");
|
|
Py_DECREF(x);
|
|
goto onError;
|
|
}
|
|
*p++ = (Py_UNICODE)value;
|
|
}
|
|
else if (x == Py_None) {
|
|
/* undefined mapping */
|
|
outpos = p-PyUnicode_AS_UNICODE(v);
|
|
startinpos = s-starts;
|
|
endinpos = startinpos+1;
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"charmap", "character maps to <undefined>",
|
|
starts, size, &startinpos, &endinpos, &exc, &s,
|
|
(PyObject **)&v, &outpos, &p)) {
|
|
Py_DECREF(x);
|
|
goto onError;
|
|
}
|
|
continue;
|
|
}
|
|
else if (PyUnicode_Check(x)) {
|
|
int targetsize = PyUnicode_GET_SIZE(x);
|
|
|
|
if (targetsize == 1)
|
|
/* 1-1 mapping */
|
|
*p++ = *PyUnicode_AS_UNICODE(x);
|
|
|
|
else if (targetsize > 1) {
|
|
/* 1-n mapping */
|
|
if (targetsize > extrachars) {
|
|
/* resize first */
|
|
int oldpos = (int)(p - PyUnicode_AS_UNICODE(v));
|
|
int needed = (targetsize - extrachars) + \
|
|
(targetsize << 2);
|
|
extrachars += needed;
|
|
if (_PyUnicode_Resize(&v,
|
|
PyUnicode_GET_SIZE(v) + needed) < 0) {
|
|
Py_DECREF(x);
|
|
goto onError;
|
|
}
|
|
p = PyUnicode_AS_UNICODE(v) + oldpos;
|
|
}
|
|
Py_UNICODE_COPY(p,
|
|
PyUnicode_AS_UNICODE(x),
|
|
targetsize);
|
|
p += targetsize;
|
|
extrachars -= targetsize;
|
|
}
|
|
/* 1-0 mapping: skip the character */
|
|
}
|
|
else {
|
|
/* wrong return value */
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"character mapping must return integer, None or unicode");
|
|
Py_DECREF(x);
|
|
goto onError;
|
|
}
|
|
Py_DECREF(x);
|
|
++s;
|
|
}
|
|
if (p - PyUnicode_AS_UNICODE(v) < PyUnicode_GET_SIZE(v))
|
|
if (_PyUnicode_Resize(&v, (int)(p - PyUnicode_AS_UNICODE(v))) < 0)
|
|
goto onError;
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return (PyObject *)v;
|
|
|
|
onError:
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
Py_XDECREF(v);
|
|
return NULL;
|
|
}
|
|
|
|
/* Lookup the character ch in the mapping. If the character
|
|
can't be found, Py_None is returned (or NULL, if another
|
|
error occured). */
|
|
static PyObject *charmapencode_lookup(Py_UNICODE c, PyObject *mapping)
|
|
{
|
|
PyObject *w = PyInt_FromLong((long)c);
|
|
PyObject *x;
|
|
|
|
if (w == NULL)
|
|
return NULL;
|
|
x = PyObject_GetItem(mapping, w);
|
|
Py_DECREF(w);
|
|
if (x == NULL) {
|
|
if (PyErr_ExceptionMatches(PyExc_LookupError)) {
|
|
/* No mapping found means: mapping is undefined. */
|
|
PyErr_Clear();
|
|
x = Py_None;
|
|
Py_INCREF(x);
|
|
return x;
|
|
} else
|
|
return NULL;
|
|
}
|
|
else if (x == Py_None)
|
|
return x;
|
|
else if (PyInt_Check(x)) {
|
|
long value = PyInt_AS_LONG(x);
|
|
if (value < 0 || value > 255) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"character mapping must be in range(256)");
|
|
Py_DECREF(x);
|
|
return NULL;
|
|
}
|
|
return x;
|
|
}
|
|
else if (PyString_Check(x))
|
|
return x;
|
|
else {
|
|
/* wrong return value */
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"character mapping must return integer, None or str");
|
|
Py_DECREF(x);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* lookup the character, put the result in the output string and adjust
|
|
various state variables. Reallocate the output string if not enough
|
|
space is available. Return a new reference to the object that
|
|
was put in the output buffer, or Py_None, if the mapping was undefined
|
|
(in which case no character was written) or NULL, if a
|
|
reallocation error ocurred. The called must decref the result */
|
|
static
|
|
PyObject *charmapencode_output(Py_UNICODE c, PyObject *mapping,
|
|
PyObject **outobj, int *outpos)
|
|
{
|
|
PyObject *rep = charmapencode_lookup(c, mapping);
|
|
|
|
if (rep==NULL)
|
|
return NULL;
|
|
else if (rep==Py_None)
|
|
return rep;
|
|
else {
|
|
char *outstart = PyString_AS_STRING(*outobj);
|
|
int outsize = PyString_GET_SIZE(*outobj);
|
|
if (PyInt_Check(rep)) {
|
|
int requiredsize = *outpos+1;
|
|
if (outsize<requiredsize) {
|
|
/* exponentially overallocate to minimize reallocations */
|
|
if (requiredsize < 2*outsize)
|
|
requiredsize = 2*outsize;
|
|
if (_PyString_Resize(outobj, requiredsize)) {
|
|
Py_DECREF(rep);
|
|
return NULL;
|
|
}
|
|
outstart = PyString_AS_STRING(*outobj);
|
|
}
|
|
outstart[(*outpos)++] = (char)PyInt_AS_LONG(rep);
|
|
}
|
|
else {
|
|
const char *repchars = PyString_AS_STRING(rep);
|
|
int repsize = PyString_GET_SIZE(rep);
|
|
int requiredsize = *outpos+repsize;
|
|
if (outsize<requiredsize) {
|
|
/* exponentially overallocate to minimize reallocations */
|
|
if (requiredsize < 2*outsize)
|
|
requiredsize = 2*outsize;
|
|
if (_PyString_Resize(outobj, requiredsize)) {
|
|
Py_DECREF(rep);
|
|
return NULL;
|
|
}
|
|
outstart = PyString_AS_STRING(*outobj);
|
|
}
|
|
memcpy(outstart + *outpos, repchars, repsize);
|
|
*outpos += repsize;
|
|
}
|
|
}
|
|
return rep;
|
|
}
|
|
|
|
/* handle an error in PyUnicode_EncodeCharmap
|
|
Return 0 on success, -1 on error */
|
|
static
|
|
int charmap_encoding_error(
|
|
const Py_UNICODE *p, int size, int *inpos, PyObject *mapping,
|
|
PyObject **exceptionObject,
|
|
int *known_errorHandler, PyObject **errorHandler, const char *errors,
|
|
PyObject **res, int *respos)
|
|
{
|
|
PyObject *repunicode = NULL; /* initialize to prevent gcc warning */
|
|
int repsize;
|
|
int newpos;
|
|
Py_UNICODE *uni2;
|
|
/* startpos for collecting unencodable chars */
|
|
int collstartpos = *inpos;
|
|
int collendpos = *inpos+1;
|
|
int collpos;
|
|
char *encoding = "charmap";
|
|
char *reason = "character maps to <undefined>";
|
|
|
|
PyObject *x;
|
|
/* find all unencodable characters */
|
|
while (collendpos < size) {
|
|
x = charmapencode_lookup(p[collendpos], mapping);
|
|
if (x==NULL)
|
|
return -1;
|
|
else if (x!=Py_None) {
|
|
Py_DECREF(x);
|
|
break;
|
|
}
|
|
Py_DECREF(x);
|
|
++collendpos;
|
|
}
|
|
/* cache callback name lookup
|
|
* (if not done yet, i.e. it's the first error) */
|
|
if (*known_errorHandler==-1) {
|
|
if ((errors==NULL) || (!strcmp(errors, "strict")))
|
|
*known_errorHandler = 1;
|
|
else if (!strcmp(errors, "replace"))
|
|
*known_errorHandler = 2;
|
|
else if (!strcmp(errors, "ignore"))
|
|
*known_errorHandler = 3;
|
|
else if (!strcmp(errors, "xmlcharrefreplace"))
|
|
*known_errorHandler = 4;
|
|
else
|
|
*known_errorHandler = 0;
|
|
}
|
|
switch (*known_errorHandler) {
|
|
case 1: /* strict */
|
|
raise_encode_exception(exceptionObject, encoding, p, size, collstartpos, collendpos, reason);
|
|
return -1;
|
|
case 2: /* replace */
|
|
for (collpos = collstartpos; collpos<collendpos; ++collpos) {
|
|
x = charmapencode_output('?', mapping, res, respos);
|
|
if (x==NULL) {
|
|
return -1;
|
|
}
|
|
else if (x==Py_None) {
|
|
Py_DECREF(x);
|
|
raise_encode_exception(exceptionObject, encoding, p, size, collstartpos, collendpos, reason);
|
|
return -1;
|
|
}
|
|
Py_DECREF(x);
|
|
}
|
|
/* fall through */
|
|
case 3: /* ignore */
|
|
*inpos = collendpos;
|
|
break;
|
|
case 4: /* xmlcharrefreplace */
|
|
/* generate replacement (temporarily (mis)uses p) */
|
|
for (collpos = collstartpos; collpos < collendpos; ++collpos) {
|
|
char buffer[2+29+1+1];
|
|
char *cp;
|
|
sprintf(buffer, "&#%d;", (int)p[collpos]);
|
|
for (cp = buffer; *cp; ++cp) {
|
|
x = charmapencode_output(*cp, mapping, res, respos);
|
|
if (x==NULL)
|
|
return -1;
|
|
else if (x==Py_None) {
|
|
Py_DECREF(x);
|
|
raise_encode_exception(exceptionObject, encoding, p, size, collstartpos, collendpos, reason);
|
|
return -1;
|
|
}
|
|
Py_DECREF(x);
|
|
}
|
|
}
|
|
*inpos = collendpos;
|
|
break;
|
|
default:
|
|
repunicode = unicode_encode_call_errorhandler(errors, errorHandler,
|
|
encoding, reason, p, size, exceptionObject,
|
|
collstartpos, collendpos, &newpos);
|
|
if (repunicode == NULL)
|
|
return -1;
|
|
/* generate replacement */
|
|
repsize = PyUnicode_GET_SIZE(repunicode);
|
|
for (uni2 = PyUnicode_AS_UNICODE(repunicode); repsize-->0; ++uni2) {
|
|
x = charmapencode_output(*uni2, mapping, res, respos);
|
|
if (x==NULL) {
|
|
Py_DECREF(repunicode);
|
|
return -1;
|
|
}
|
|
else if (x==Py_None) {
|
|
Py_DECREF(repunicode);
|
|
Py_DECREF(x);
|
|
raise_encode_exception(exceptionObject, encoding, p, size, collstartpos, collendpos, reason);
|
|
return -1;
|
|
}
|
|
Py_DECREF(x);
|
|
}
|
|
*inpos = newpos;
|
|
Py_DECREF(repunicode);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
PyObject *PyUnicode_EncodeCharmap(const Py_UNICODE *p,
|
|
int size,
|
|
PyObject *mapping,
|
|
const char *errors)
|
|
{
|
|
/* output object */
|
|
PyObject *res = NULL;
|
|
/* current input position */
|
|
int inpos = 0;
|
|
/* current output position */
|
|
int respos = 0;
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
/* the following variable is used for caching string comparisons
|
|
* -1=not initialized, 0=unknown, 1=strict, 2=replace,
|
|
* 3=ignore, 4=xmlcharrefreplace */
|
|
int known_errorHandler = -1;
|
|
|
|
/* Default to Latin-1 */
|
|
if (mapping == NULL)
|
|
return PyUnicode_EncodeLatin1(p, size, errors);
|
|
|
|
/* allocate enough for a simple encoding without
|
|
replacements, if we need more, we'll resize */
|
|
res = PyString_FromStringAndSize(NULL, size);
|
|
if (res == NULL)
|
|
goto onError;
|
|
if (size == 0)
|
|
return res;
|
|
|
|
while (inpos<size) {
|
|
/* try to encode it */
|
|
PyObject *x = charmapencode_output(p[inpos], mapping, &res, &respos);
|
|
if (x==NULL) /* error */
|
|
goto onError;
|
|
if (x==Py_None) { /* unencodable character */
|
|
if (charmap_encoding_error(p, size, &inpos, mapping,
|
|
&exc,
|
|
&known_errorHandler, &errorHandler, errors,
|
|
&res, &respos)) {
|
|
Py_DECREF(x);
|
|
goto onError;
|
|
}
|
|
}
|
|
else
|
|
/* done with this character => adjust input position */
|
|
++inpos;
|
|
Py_DECREF(x);
|
|
}
|
|
|
|
/* Resize if we allocated to much */
|
|
if (respos<PyString_GET_SIZE(res)) {
|
|
if (_PyString_Resize(&res, respos))
|
|
goto onError;
|
|
}
|
|
Py_XDECREF(exc);
|
|
Py_XDECREF(errorHandler);
|
|
return res;
|
|
|
|
onError:
|
|
Py_XDECREF(res);
|
|
Py_XDECREF(exc);
|
|
Py_XDECREF(errorHandler);
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_AsCharmapString(PyObject *unicode,
|
|
PyObject *mapping)
|
|
{
|
|
if (!PyUnicode_Check(unicode) || mapping == NULL) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
return PyUnicode_EncodeCharmap(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode),
|
|
mapping,
|
|
NULL);
|
|
}
|
|
|
|
/* create or adjust a UnicodeTranslateError */
|
|
static void make_translate_exception(PyObject **exceptionObject,
|
|
const Py_UNICODE *unicode, int size,
|
|
int startpos, int endpos,
|
|
const char *reason)
|
|
{
|
|
if (*exceptionObject == NULL) {
|
|
*exceptionObject = PyUnicodeTranslateError_Create(
|
|
unicode, size, startpos, endpos, reason);
|
|
}
|
|
else {
|
|
if (PyUnicodeTranslateError_SetStart(*exceptionObject, startpos))
|
|
goto onError;
|
|
if (PyUnicodeTranslateError_SetEnd(*exceptionObject, endpos))
|
|
goto onError;
|
|
if (PyUnicodeTranslateError_SetReason(*exceptionObject, reason))
|
|
goto onError;
|
|
return;
|
|
onError:
|
|
Py_DECREF(*exceptionObject);
|
|
*exceptionObject = NULL;
|
|
}
|
|
}
|
|
|
|
/* raises a UnicodeTranslateError */
|
|
static void raise_translate_exception(PyObject **exceptionObject,
|
|
const Py_UNICODE *unicode, int size,
|
|
int startpos, int endpos,
|
|
const char *reason)
|
|
{
|
|
make_translate_exception(exceptionObject,
|
|
unicode, size, startpos, endpos, reason);
|
|
if (*exceptionObject != NULL)
|
|
PyCodec_StrictErrors(*exceptionObject);
|
|
}
|
|
|
|
/* error handling callback helper:
|
|
build arguments, call the callback and check the arguments,
|
|
put the result into newpos and return the replacement string, which
|
|
has to be freed by the caller */
|
|
static PyObject *unicode_translate_call_errorhandler(const char *errors,
|
|
PyObject **errorHandler,
|
|
const char *reason,
|
|
const Py_UNICODE *unicode, int size, PyObject **exceptionObject,
|
|
int startpos, int endpos,
|
|
int *newpos)
|
|
{
|
|
static char *argparse = "O!i;translating error handler must return (unicode, int) tuple";
|
|
|
|
PyObject *restuple;
|
|
PyObject *resunicode;
|
|
|
|
if (*errorHandler == NULL) {
|
|
*errorHandler = PyCodec_LookupError(errors);
|
|
if (*errorHandler == NULL)
|
|
return NULL;
|
|
}
|
|
|
|
make_translate_exception(exceptionObject,
|
|
unicode, size, startpos, endpos, reason);
|
|
if (*exceptionObject == NULL)
|
|
return NULL;
|
|
|
|
restuple = PyObject_CallFunctionObjArgs(
|
|
*errorHandler, *exceptionObject, NULL);
|
|
if (restuple == NULL)
|
|
return NULL;
|
|
if (!PyTuple_Check(restuple)) {
|
|
PyErr_Format(PyExc_TypeError, &argparse[4]);
|
|
Py_DECREF(restuple);
|
|
return NULL;
|
|
}
|
|
if (!PyArg_ParseTuple(restuple, argparse, &PyUnicode_Type,
|
|
&resunicode, newpos)) {
|
|
Py_DECREF(restuple);
|
|
return NULL;
|
|
}
|
|
if (*newpos<0)
|
|
*newpos = size+*newpos;
|
|
if (*newpos<0 || *newpos>size) {
|
|
PyErr_Format(PyExc_IndexError, "position %d from error handler out of bounds", *newpos);
|
|
Py_DECREF(restuple);
|
|
return NULL;
|
|
}
|
|
Py_INCREF(resunicode);
|
|
Py_DECREF(restuple);
|
|
return resunicode;
|
|
}
|
|
|
|
/* Lookup the character ch in the mapping and put the result in result,
|
|
which must be decrefed by the caller.
|
|
Return 0 on success, -1 on error */
|
|
static
|
|
int charmaptranslate_lookup(Py_UNICODE c, PyObject *mapping, PyObject **result)
|
|
{
|
|
PyObject *w = PyInt_FromLong((long)c);
|
|
PyObject *x;
|
|
|
|
if (w == NULL)
|
|
return -1;
|
|
x = PyObject_GetItem(mapping, w);
|
|
Py_DECREF(w);
|
|
if (x == NULL) {
|
|
if (PyErr_ExceptionMatches(PyExc_LookupError)) {
|
|
/* No mapping found means: use 1:1 mapping. */
|
|
PyErr_Clear();
|
|
*result = NULL;
|
|
return 0;
|
|
} else
|
|
return -1;
|
|
}
|
|
else if (x == Py_None) {
|
|
*result = x;
|
|
return 0;
|
|
}
|
|
else if (PyInt_Check(x)) {
|
|
long value = PyInt_AS_LONG(x);
|
|
long max = PyUnicode_GetMax();
|
|
if (value < 0 || value > max) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"character mapping must be in range(0x%lx)", max+1);
|
|
Py_DECREF(x);
|
|
return -1;
|
|
}
|
|
*result = x;
|
|
return 0;
|
|
}
|
|
else if (PyUnicode_Check(x)) {
|
|
*result = x;
|
|
return 0;
|
|
}
|
|
else {
|
|
/* wrong return value */
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"character mapping must return integer, None or unicode");
|
|
Py_DECREF(x);
|
|
return -1;
|
|
}
|
|
}
|
|
/* ensure that *outobj is at least requiredsize characters long,
|
|
if not reallocate and adjust various state variables.
|
|
Return 0 on success, -1 on error */
|
|
static
|
|
int charmaptranslate_makespace(PyObject **outobj, Py_UNICODE **outp,
|
|
int requiredsize)
|
|
{
|
|
int oldsize = PyUnicode_GET_SIZE(*outobj);
|
|
if (requiredsize > oldsize) {
|
|
/* remember old output position */
|
|
int outpos = *outp-PyUnicode_AS_UNICODE(*outobj);
|
|
/* exponentially overallocate to minimize reallocations */
|
|
if (requiredsize < 2 * oldsize)
|
|
requiredsize = 2 * oldsize;
|
|
if (_PyUnicode_Resize(outobj, requiredsize) < 0)
|
|
return -1;
|
|
*outp = PyUnicode_AS_UNICODE(*outobj) + outpos;
|
|
}
|
|
return 0;
|
|
}
|
|
/* lookup the character, put the result in the output string and adjust
|
|
various state variables. Return a new reference to the object that
|
|
was put in the output buffer in *result, or Py_None, if the mapping was
|
|
undefined (in which case no character was written).
|
|
The called must decref result.
|
|
Return 0 on success, -1 on error. */
|
|
static
|
|
int charmaptranslate_output(const Py_UNICODE *startinp, const Py_UNICODE *curinp,
|
|
int insize, PyObject *mapping, PyObject **outobj, Py_UNICODE **outp,
|
|
PyObject **res)
|
|
{
|
|
if (charmaptranslate_lookup(*curinp, mapping, res))
|
|
return -1;
|
|
if (*res==NULL) {
|
|
/* not found => default to 1:1 mapping */
|
|
*(*outp)++ = *curinp;
|
|
}
|
|
else if (*res==Py_None)
|
|
;
|
|
else if (PyInt_Check(*res)) {
|
|
/* no overflow check, because we know that the space is enough */
|
|
*(*outp)++ = (Py_UNICODE)PyInt_AS_LONG(*res);
|
|
}
|
|
else if (PyUnicode_Check(*res)) {
|
|
int repsize = PyUnicode_GET_SIZE(*res);
|
|
if (repsize==1) {
|
|
/* no overflow check, because we know that the space is enough */
|
|
*(*outp)++ = *PyUnicode_AS_UNICODE(*res);
|
|
}
|
|
else if (repsize!=0) {
|
|
/* more than one character */
|
|
int requiredsize = (*outp-PyUnicode_AS_UNICODE(*outobj)) +
|
|
(insize - (curinp-startinp)) +
|
|
repsize - 1;
|
|
if (charmaptranslate_makespace(outobj, outp, requiredsize))
|
|
return -1;
|
|
memcpy(*outp, PyUnicode_AS_UNICODE(*res), sizeof(Py_UNICODE)*repsize);
|
|
*outp += repsize;
|
|
}
|
|
}
|
|
else
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
PyObject *PyUnicode_TranslateCharmap(const Py_UNICODE *p,
|
|
int size,
|
|
PyObject *mapping,
|
|
const char *errors)
|
|
{
|
|
/* output object */
|
|
PyObject *res = NULL;
|
|
/* pointers to the beginning and end+1 of input */
|
|
const Py_UNICODE *startp = p;
|
|
const Py_UNICODE *endp = p + size;
|
|
/* pointer into the output */
|
|
Py_UNICODE *str;
|
|
/* current output position */
|
|
int respos = 0;
|
|
char *reason = "character maps to <undefined>";
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
/* the following variable is used for caching string comparisons
|
|
* -1=not initialized, 0=unknown, 1=strict, 2=replace,
|
|
* 3=ignore, 4=xmlcharrefreplace */
|
|
int known_errorHandler = -1;
|
|
|
|
if (mapping == NULL) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
|
|
/* allocate enough for a simple 1:1 translation without
|
|
replacements, if we need more, we'll resize */
|
|
res = PyUnicode_FromUnicode(NULL, size);
|
|
if (res == NULL)
|
|
goto onError;
|
|
if (size == 0)
|
|
return res;
|
|
str = PyUnicode_AS_UNICODE(res);
|
|
|
|
while (p<endp) {
|
|
/* try to encode it */
|
|
PyObject *x = NULL;
|
|
if (charmaptranslate_output(startp, p, size, mapping, &res, &str, &x)) {
|
|
Py_XDECREF(x);
|
|
goto onError;
|
|
}
|
|
Py_XDECREF(x);
|
|
if (x!=Py_None) /* it worked => adjust input pointer */
|
|
++p;
|
|
else { /* untranslatable character */
|
|
PyObject *repunicode = NULL; /* initialize to prevent gcc warning */
|
|
int repsize;
|
|
int newpos;
|
|
Py_UNICODE *uni2;
|
|
/* startpos for collecting untranslatable chars */
|
|
const Py_UNICODE *collstart = p;
|
|
const Py_UNICODE *collend = p+1;
|
|
const Py_UNICODE *coll;
|
|
|
|
/* find all untranslatable characters */
|
|
while (collend < endp) {
|
|
if (charmaptranslate_lookup(*collend, mapping, &x))
|
|
goto onError;
|
|
Py_XDECREF(x);
|
|
if (x!=Py_None)
|
|
break;
|
|
++collend;
|
|
}
|
|
/* cache callback name lookup
|
|
* (if not done yet, i.e. it's the first error) */
|
|
if (known_errorHandler==-1) {
|
|
if ((errors==NULL) || (!strcmp(errors, "strict")))
|
|
known_errorHandler = 1;
|
|
else if (!strcmp(errors, "replace"))
|
|
known_errorHandler = 2;
|
|
else if (!strcmp(errors, "ignore"))
|
|
known_errorHandler = 3;
|
|
else if (!strcmp(errors, "xmlcharrefreplace"))
|
|
known_errorHandler = 4;
|
|
else
|
|
known_errorHandler = 0;
|
|
}
|
|
switch (known_errorHandler) {
|
|
case 1: /* strict */
|
|
raise_translate_exception(&exc, startp, size, collstart-startp, collend-startp, reason);
|
|
goto onError;
|
|
case 2: /* replace */
|
|
/* No need to check for space, this is a 1:1 replacement */
|
|
for (coll = collstart; coll<collend; ++coll)
|
|
*str++ = '?';
|
|
/* fall through */
|
|
case 3: /* ignore */
|
|
p = collend;
|
|
break;
|
|
case 4: /* xmlcharrefreplace */
|
|
/* generate replacement (temporarily (mis)uses p) */
|
|
for (p = collstart; p < collend; ++p) {
|
|
char buffer[2+29+1+1];
|
|
char *cp;
|
|
sprintf(buffer, "&#%d;", (int)*p);
|
|
if (charmaptranslate_makespace(&res, &str,
|
|
(str-PyUnicode_AS_UNICODE(res))+strlen(buffer)+(endp-collend)))
|
|
goto onError;
|
|
for (cp = buffer; *cp; ++cp)
|
|
*str++ = *cp;
|
|
}
|
|
p = collend;
|
|
break;
|
|
default:
|
|
repunicode = unicode_translate_call_errorhandler(errors, &errorHandler,
|
|
reason, startp, size, &exc,
|
|
collstart-startp, collend-startp, &newpos);
|
|
if (repunicode == NULL)
|
|
goto onError;
|
|
/* generate replacement */
|
|
repsize = PyUnicode_GET_SIZE(repunicode);
|
|
if (charmaptranslate_makespace(&res, &str,
|
|
(str-PyUnicode_AS_UNICODE(res))+repsize+(endp-collend))) {
|
|
Py_DECREF(repunicode);
|
|
goto onError;
|
|
}
|
|
for (uni2 = PyUnicode_AS_UNICODE(repunicode); repsize-->0; ++uni2)
|
|
*str++ = *uni2;
|
|
p = startp + newpos;
|
|
Py_DECREF(repunicode);
|
|
}
|
|
}
|
|
}
|
|
/* Resize if we allocated to much */
|
|
respos = str-PyUnicode_AS_UNICODE(res);
|
|
if (respos<PyUnicode_GET_SIZE(res)) {
|
|
if (_PyUnicode_Resize(&res, respos) < 0)
|
|
goto onError;
|
|
}
|
|
Py_XDECREF(exc);
|
|
Py_XDECREF(errorHandler);
|
|
return res;
|
|
|
|
onError:
|
|
Py_XDECREF(res);
|
|
Py_XDECREF(exc);
|
|
Py_XDECREF(errorHandler);
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_Translate(PyObject *str,
|
|
PyObject *mapping,
|
|
const char *errors)
|
|
{
|
|
PyObject *result;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
goto onError;
|
|
result = PyUnicode_TranslateCharmap(PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
mapping,
|
|
errors);
|
|
Py_DECREF(str);
|
|
return result;
|
|
|
|
onError:
|
|
Py_XDECREF(str);
|
|
return NULL;
|
|
}
|
|
|
|
/* --- Decimal Encoder ---------------------------------------------------- */
|
|
|
|
int PyUnicode_EncodeDecimal(Py_UNICODE *s,
|
|
int length,
|
|
char *output,
|
|
const char *errors)
|
|
{
|
|
Py_UNICODE *p, *end;
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
const char *encoding = "decimal";
|
|
const char *reason = "invalid decimal Unicode string";
|
|
/* the following variable is used for caching string comparisons
|
|
* -1=not initialized, 0=unknown, 1=strict, 2=replace, 3=ignore, 4=xmlcharrefreplace */
|
|
int known_errorHandler = -1;
|
|
|
|
if (output == NULL) {
|
|
PyErr_BadArgument();
|
|
return -1;
|
|
}
|
|
|
|
p = s;
|
|
end = s + length;
|
|
while (p < end) {
|
|
register Py_UNICODE ch = *p;
|
|
int decimal;
|
|
PyObject *repunicode;
|
|
int repsize;
|
|
int newpos;
|
|
Py_UNICODE *uni2;
|
|
Py_UNICODE *collstart;
|
|
Py_UNICODE *collend;
|
|
|
|
if (Py_UNICODE_ISSPACE(ch)) {
|
|
*output++ = ' ';
|
|
++p;
|
|
continue;
|
|
}
|
|
decimal = Py_UNICODE_TODECIMAL(ch);
|
|
if (decimal >= 0) {
|
|
*output++ = '0' + decimal;
|
|
++p;
|
|
continue;
|
|
}
|
|
if (0 < ch && ch < 256) {
|
|
*output++ = (char)ch;
|
|
++p;
|
|
continue;
|
|
}
|
|
/* All other characters are considered unencodable */
|
|
collstart = p;
|
|
collend = p+1;
|
|
while (collend < end) {
|
|
if ((0 < *collend && *collend < 256) ||
|
|
!Py_UNICODE_ISSPACE(*collend) ||
|
|
Py_UNICODE_TODECIMAL(*collend))
|
|
break;
|
|
}
|
|
/* cache callback name lookup
|
|
* (if not done yet, i.e. it's the first error) */
|
|
if (known_errorHandler==-1) {
|
|
if ((errors==NULL) || (!strcmp(errors, "strict")))
|
|
known_errorHandler = 1;
|
|
else if (!strcmp(errors, "replace"))
|
|
known_errorHandler = 2;
|
|
else if (!strcmp(errors, "ignore"))
|
|
known_errorHandler = 3;
|
|
else if (!strcmp(errors, "xmlcharrefreplace"))
|
|
known_errorHandler = 4;
|
|
else
|
|
known_errorHandler = 0;
|
|
}
|
|
switch (known_errorHandler) {
|
|
case 1: /* strict */
|
|
raise_encode_exception(&exc, encoding, s, length, collstart-s, collend-s, reason);
|
|
goto onError;
|
|
case 2: /* replace */
|
|
for (p = collstart; p < collend; ++p)
|
|
*output++ = '?';
|
|
/* fall through */
|
|
case 3: /* ignore */
|
|
p = collend;
|
|
break;
|
|
case 4: /* xmlcharrefreplace */
|
|
/* generate replacement (temporarily (mis)uses p) */
|
|
for (p = collstart; p < collend; ++p)
|
|
output += sprintf(output, "&#%d;", (int)*p);
|
|
p = collend;
|
|
break;
|
|
default:
|
|
repunicode = unicode_encode_call_errorhandler(errors, &errorHandler,
|
|
encoding, reason, s, length, &exc,
|
|
collstart-s, collend-s, &newpos);
|
|
if (repunicode == NULL)
|
|
goto onError;
|
|
/* generate replacement */
|
|
repsize = PyUnicode_GET_SIZE(repunicode);
|
|
for (uni2 = PyUnicode_AS_UNICODE(repunicode); repsize-->0; ++uni2) {
|
|
Py_UNICODE ch = *uni2;
|
|
if (Py_UNICODE_ISSPACE(ch))
|
|
*output++ = ' ';
|
|
else {
|
|
decimal = Py_UNICODE_TODECIMAL(ch);
|
|
if (decimal >= 0)
|
|
*output++ = '0' + decimal;
|
|
else if (0 < ch && ch < 256)
|
|
*output++ = (char)ch;
|
|
else {
|
|
Py_DECREF(repunicode);
|
|
raise_encode_exception(&exc, encoding,
|
|
s, length, collstart-s, collend-s, reason);
|
|
goto onError;
|
|
}
|
|
}
|
|
}
|
|
p = s + newpos;
|
|
Py_DECREF(repunicode);
|
|
}
|
|
}
|
|
/* 0-terminate the output string */
|
|
*output++ = '\0';
|
|
Py_XDECREF(exc);
|
|
Py_XDECREF(errorHandler);
|
|
return 0;
|
|
|
|
onError:
|
|
Py_XDECREF(exc);
|
|
Py_XDECREF(errorHandler);
|
|
return -1;
|
|
}
|
|
|
|
/* --- Helpers ------------------------------------------------------------ */
|
|
|
|
static
|
|
int count(PyUnicodeObject *self,
|
|
int start,
|
|
int end,
|
|
PyUnicodeObject *substring)
|
|
{
|
|
int count = 0;
|
|
|
|
if (start < 0)
|
|
start += self->length;
|
|
if (start < 0)
|
|
start = 0;
|
|
if (end > self->length)
|
|
end = self->length;
|
|
if (end < 0)
|
|
end += self->length;
|
|
if (end < 0)
|
|
end = 0;
|
|
|
|
if (substring->length == 0)
|
|
return (end - start + 1);
|
|
|
|
end -= substring->length;
|
|
|
|
while (start <= end)
|
|
if (Py_UNICODE_MATCH(self, start, substring)) {
|
|
count++;
|
|
start += substring->length;
|
|
} else
|
|
start++;
|
|
|
|
return count;
|
|
}
|
|
|
|
int PyUnicode_Count(PyObject *str,
|
|
PyObject *substr,
|
|
int start,
|
|
int end)
|
|
{
|
|
int result;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return -1;
|
|
substr = PyUnicode_FromObject(substr);
|
|
if (substr == NULL) {
|
|
Py_DECREF(str);
|
|
return -1;
|
|
}
|
|
|
|
result = count((PyUnicodeObject *)str,
|
|
start, end,
|
|
(PyUnicodeObject *)substr);
|
|
|
|
Py_DECREF(str);
|
|
Py_DECREF(substr);
|
|
return result;
|
|
}
|
|
|
|
static
|
|
int findstring(PyUnicodeObject *self,
|
|
PyUnicodeObject *substring,
|
|
int start,
|
|
int end,
|
|
int direction)
|
|
{
|
|
if (start < 0)
|
|
start += self->length;
|
|
if (start < 0)
|
|
start = 0;
|
|
|
|
if (end > self->length)
|
|
end = self->length;
|
|
if (end < 0)
|
|
end += self->length;
|
|
if (end < 0)
|
|
end = 0;
|
|
|
|
if (substring->length == 0)
|
|
return (direction > 0) ? start : end;
|
|
|
|
end -= substring->length;
|
|
|
|
if (direction < 0) {
|
|
for (; end >= start; end--)
|
|
if (Py_UNICODE_MATCH(self, end, substring))
|
|
return end;
|
|
} else {
|
|
for (; start <= end; start++)
|
|
if (Py_UNICODE_MATCH(self, start, substring))
|
|
return start;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
int PyUnicode_Find(PyObject *str,
|
|
PyObject *substr,
|
|
int start,
|
|
int end,
|
|
int direction)
|
|
{
|
|
int result;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return -2;
|
|
substr = PyUnicode_FromObject(substr);
|
|
if (substr == NULL) {
|
|
Py_DECREF(str);
|
|
return -2;
|
|
}
|
|
|
|
result = findstring((PyUnicodeObject *)str,
|
|
(PyUnicodeObject *)substr,
|
|
start, end, direction);
|
|
Py_DECREF(str);
|
|
Py_DECREF(substr);
|
|
return result;
|
|
}
|
|
|
|
static
|
|
int tailmatch(PyUnicodeObject *self,
|
|
PyUnicodeObject *substring,
|
|
int start,
|
|
int end,
|
|
int direction)
|
|
{
|
|
if (start < 0)
|
|
start += self->length;
|
|
if (start < 0)
|
|
start = 0;
|
|
|
|
if (substring->length == 0)
|
|
return 1;
|
|
|
|
if (end > self->length)
|
|
end = self->length;
|
|
if (end < 0)
|
|
end += self->length;
|
|
if (end < 0)
|
|
end = 0;
|
|
|
|
end -= substring->length;
|
|
if (end < start)
|
|
return 0;
|
|
|
|
if (direction > 0) {
|
|
if (Py_UNICODE_MATCH(self, end, substring))
|
|
return 1;
|
|
} else {
|
|
if (Py_UNICODE_MATCH(self, start, substring))
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int PyUnicode_Tailmatch(PyObject *str,
|
|
PyObject *substr,
|
|
int start,
|
|
int end,
|
|
int direction)
|
|
{
|
|
int result;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return -1;
|
|
substr = PyUnicode_FromObject(substr);
|
|
if (substr == NULL) {
|
|
Py_DECREF(substr);
|
|
return -1;
|
|
}
|
|
|
|
result = tailmatch((PyUnicodeObject *)str,
|
|
(PyUnicodeObject *)substr,
|
|
start, end, direction);
|
|
Py_DECREF(str);
|
|
Py_DECREF(substr);
|
|
return result;
|
|
}
|
|
|
|
static
|
|
const Py_UNICODE *findchar(const Py_UNICODE *s,
|
|
int size,
|
|
Py_UNICODE ch)
|
|
{
|
|
/* like wcschr, but doesn't stop at NULL characters */
|
|
|
|
while (size-- > 0) {
|
|
if (*s == ch)
|
|
return s;
|
|
s++;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Apply fixfct filter to the Unicode object self and return a
|
|
reference to the modified object */
|
|
|
|
static
|
|
PyObject *fixup(PyUnicodeObject *self,
|
|
int (*fixfct)(PyUnicodeObject *s))
|
|
{
|
|
|
|
PyUnicodeObject *u;
|
|
|
|
u = (PyUnicodeObject*) PyUnicode_FromUnicode(NULL, self->length);
|
|
if (u == NULL)
|
|
return NULL;
|
|
|
|
Py_UNICODE_COPY(u->str, self->str, self->length);
|
|
|
|
if (!fixfct(u) && PyUnicode_CheckExact(self)) {
|
|
/* fixfct should return TRUE if it modified the buffer. If
|
|
FALSE, return a reference to the original buffer instead
|
|
(to save space, not time) */
|
|
Py_INCREF(self);
|
|
Py_DECREF(u);
|
|
return (PyObject*) self;
|
|
}
|
|
return (PyObject*) u;
|
|
}
|
|
|
|
static
|
|
int fixupper(PyUnicodeObject *self)
|
|
{
|
|
int len = self->length;
|
|
Py_UNICODE *s = self->str;
|
|
int status = 0;
|
|
|
|
while (len-- > 0) {
|
|
register Py_UNICODE ch;
|
|
|
|
ch = Py_UNICODE_TOUPPER(*s);
|
|
if (ch != *s) {
|
|
status = 1;
|
|
*s = ch;
|
|
}
|
|
s++;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
static
|
|
int fixlower(PyUnicodeObject *self)
|
|
{
|
|
int len = self->length;
|
|
Py_UNICODE *s = self->str;
|
|
int status = 0;
|
|
|
|
while (len-- > 0) {
|
|
register Py_UNICODE ch;
|
|
|
|
ch = Py_UNICODE_TOLOWER(*s);
|
|
if (ch != *s) {
|
|
status = 1;
|
|
*s = ch;
|
|
}
|
|
s++;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
static
|
|
int fixswapcase(PyUnicodeObject *self)
|
|
{
|
|
int len = self->length;
|
|
Py_UNICODE *s = self->str;
|
|
int status = 0;
|
|
|
|
while (len-- > 0) {
|
|
if (Py_UNICODE_ISUPPER(*s)) {
|
|
*s = Py_UNICODE_TOLOWER(*s);
|
|
status = 1;
|
|
} else if (Py_UNICODE_ISLOWER(*s)) {
|
|
*s = Py_UNICODE_TOUPPER(*s);
|
|
status = 1;
|
|
}
|
|
s++;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
static
|
|
int fixcapitalize(PyUnicodeObject *self)
|
|
{
|
|
int len = self->length;
|
|
Py_UNICODE *s = self->str;
|
|
int status = 0;
|
|
|
|
if (len == 0)
|
|
return 0;
|
|
if (Py_UNICODE_ISLOWER(*s)) {
|
|
*s = Py_UNICODE_TOUPPER(*s);
|
|
status = 1;
|
|
}
|
|
s++;
|
|
while (--len > 0) {
|
|
if (Py_UNICODE_ISUPPER(*s)) {
|
|
*s = Py_UNICODE_TOLOWER(*s);
|
|
status = 1;
|
|
}
|
|
s++;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
static
|
|
int fixtitle(PyUnicodeObject *self)
|
|
{
|
|
register Py_UNICODE *p = PyUnicode_AS_UNICODE(self);
|
|
register Py_UNICODE *e;
|
|
int previous_is_cased;
|
|
|
|
/* Shortcut for single character strings */
|
|
if (PyUnicode_GET_SIZE(self) == 1) {
|
|
Py_UNICODE ch = Py_UNICODE_TOTITLE(*p);
|
|
if (*p != ch) {
|
|
*p = ch;
|
|
return 1;
|
|
}
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
previous_is_cased = 0;
|
|
for (; p < e; p++) {
|
|
register const Py_UNICODE ch = *p;
|
|
|
|
if (previous_is_cased)
|
|
*p = Py_UNICODE_TOLOWER(ch);
|
|
else
|
|
*p = Py_UNICODE_TOTITLE(ch);
|
|
|
|
if (Py_UNICODE_ISLOWER(ch) ||
|
|
Py_UNICODE_ISUPPER(ch) ||
|
|
Py_UNICODE_ISTITLE(ch))
|
|
previous_is_cased = 1;
|
|
else
|
|
previous_is_cased = 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
PyObject *PyUnicode_Join(PyObject *separator,
|
|
PyObject *seq)
|
|
{
|
|
Py_UNICODE *sep;
|
|
int seplen;
|
|
PyUnicodeObject *res = NULL;
|
|
int reslen = 0;
|
|
Py_UNICODE *p;
|
|
int sz = 100;
|
|
int i;
|
|
PyObject *it;
|
|
|
|
it = PyObject_GetIter(seq);
|
|
if (it == NULL)
|
|
return NULL;
|
|
|
|
if (separator == NULL) {
|
|
Py_UNICODE blank = ' ';
|
|
sep = ␣
|
|
seplen = 1;
|
|
}
|
|
else {
|
|
separator = PyUnicode_FromObject(separator);
|
|
if (separator == NULL)
|
|
goto onError;
|
|
sep = PyUnicode_AS_UNICODE(separator);
|
|
seplen = PyUnicode_GET_SIZE(separator);
|
|
}
|
|
|
|
res = _PyUnicode_New(sz);
|
|
if (res == NULL)
|
|
goto onError;
|
|
p = PyUnicode_AS_UNICODE(res);
|
|
reslen = 0;
|
|
|
|
for (i = 0; ; ++i) {
|
|
int itemlen;
|
|
PyObject *item = PyIter_Next(it);
|
|
if (item == NULL) {
|
|
if (PyErr_Occurred())
|
|
goto onError;
|
|
break;
|
|
}
|
|
if (!PyUnicode_Check(item)) {
|
|
PyObject *v;
|
|
if (!PyString_Check(item)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"sequence item %i: expected string or Unicode,"
|
|
" %.80s found",
|
|
i, item->ob_type->tp_name);
|
|
Py_DECREF(item);
|
|
goto onError;
|
|
}
|
|
v = PyUnicode_FromObject(item);
|
|
Py_DECREF(item);
|
|
item = v;
|
|
if (item == NULL)
|
|
goto onError;
|
|
}
|
|
itemlen = PyUnicode_GET_SIZE(item);
|
|
while (reslen + itemlen + seplen >= sz) {
|
|
if (_PyUnicode_Resize(&res, sz*2) < 0) {
|
|
Py_DECREF(item);
|
|
goto onError;
|
|
}
|
|
sz *= 2;
|
|
p = PyUnicode_AS_UNICODE(res) + reslen;
|
|
}
|
|
if (i > 0) {
|
|
Py_UNICODE_COPY(p, sep, seplen);
|
|
p += seplen;
|
|
reslen += seplen;
|
|
}
|
|
Py_UNICODE_COPY(p, PyUnicode_AS_UNICODE(item), itemlen);
|
|
p += itemlen;
|
|
reslen += itemlen;
|
|
Py_DECREF(item);
|
|
}
|
|
if (_PyUnicode_Resize(&res, reslen) < 0)
|
|
goto onError;
|
|
|
|
Py_XDECREF(separator);
|
|
Py_DECREF(it);
|
|
return (PyObject *)res;
|
|
|
|
onError:
|
|
Py_XDECREF(separator);
|
|
Py_XDECREF(res);
|
|
Py_DECREF(it);
|
|
return NULL;
|
|
}
|
|
|
|
static
|
|
PyUnicodeObject *pad(PyUnicodeObject *self,
|
|
int left,
|
|
int right,
|
|
Py_UNICODE fill)
|
|
{
|
|
PyUnicodeObject *u;
|
|
|
|
if (left < 0)
|
|
left = 0;
|
|
if (right < 0)
|
|
right = 0;
|
|
|
|
if (left == 0 && right == 0 && PyUnicode_CheckExact(self)) {
|
|
Py_INCREF(self);
|
|
return self;
|
|
}
|
|
|
|
u = _PyUnicode_New(left + self->length + right);
|
|
if (u) {
|
|
if (left)
|
|
Py_UNICODE_FILL(u->str, fill, left);
|
|
Py_UNICODE_COPY(u->str + left, self->str, self->length);
|
|
if (right)
|
|
Py_UNICODE_FILL(u->str + left + self->length, fill, right);
|
|
}
|
|
|
|
return u;
|
|
}
|
|
|
|
#define SPLIT_APPEND(data, left, right) \
|
|
str = PyUnicode_FromUnicode((data) + (left), (right) - (left)); \
|
|
if (!str) \
|
|
goto onError; \
|
|
if (PyList_Append(list, str)) { \
|
|
Py_DECREF(str); \
|
|
goto onError; \
|
|
} \
|
|
else \
|
|
Py_DECREF(str);
|
|
|
|
#define SPLIT_INSERT(data, left, right) \
|
|
str = PyUnicode_FromUnicode((data) + (left), (right) - (left)); \
|
|
if (!str) \
|
|
goto onError; \
|
|
if (PyList_Insert(list, 0, str)) { \
|
|
Py_DECREF(str); \
|
|
goto onError; \
|
|
} \
|
|
else \
|
|
Py_DECREF(str);
|
|
|
|
static
|
|
PyObject *split_whitespace(PyUnicodeObject *self,
|
|
PyObject *list,
|
|
int maxcount)
|
|
{
|
|
register int i;
|
|
register int j;
|
|
int len = self->length;
|
|
PyObject *str;
|
|
|
|
for (i = j = 0; i < len; ) {
|
|
/* find a token */
|
|
while (i < len && Py_UNICODE_ISSPACE(self->str[i]))
|
|
i++;
|
|
j = i;
|
|
while (i < len && !Py_UNICODE_ISSPACE(self->str[i]))
|
|
i++;
|
|
if (j < i) {
|
|
if (maxcount-- <= 0)
|
|
break;
|
|
SPLIT_APPEND(self->str, j, i);
|
|
while (i < len && Py_UNICODE_ISSPACE(self->str[i]))
|
|
i++;
|
|
j = i;
|
|
}
|
|
}
|
|
if (j < len) {
|
|
SPLIT_APPEND(self->str, j, len);
|
|
}
|
|
return list;
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_Splitlines(PyObject *string,
|
|
int keepends)
|
|
{
|
|
register int i;
|
|
register int j;
|
|
int len;
|
|
PyObject *list;
|
|
PyObject *str;
|
|
Py_UNICODE *data;
|
|
|
|
string = PyUnicode_FromObject(string);
|
|
if (string == NULL)
|
|
return NULL;
|
|
data = PyUnicode_AS_UNICODE(string);
|
|
len = PyUnicode_GET_SIZE(string);
|
|
|
|
list = PyList_New(0);
|
|
if (!list)
|
|
goto onError;
|
|
|
|
for (i = j = 0; i < len; ) {
|
|
int eol;
|
|
|
|
/* Find a line and append it */
|
|
while (i < len && !Py_UNICODE_ISLINEBREAK(data[i]))
|
|
i++;
|
|
|
|
/* Skip the line break reading CRLF as one line break */
|
|
eol = i;
|
|
if (i < len) {
|
|
if (data[i] == '\r' && i + 1 < len &&
|
|
data[i+1] == '\n')
|
|
i += 2;
|
|
else
|
|
i++;
|
|
if (keepends)
|
|
eol = i;
|
|
}
|
|
SPLIT_APPEND(data, j, eol);
|
|
j = i;
|
|
}
|
|
if (j < len) {
|
|
SPLIT_APPEND(data, j, len);
|
|
}
|
|
|
|
Py_DECREF(string);
|
|
return list;
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
Py_DECREF(string);
|
|
return NULL;
|
|
}
|
|
|
|
static
|
|
PyObject *split_char(PyUnicodeObject *self,
|
|
PyObject *list,
|
|
Py_UNICODE ch,
|
|
int maxcount)
|
|
{
|
|
register int i;
|
|
register int j;
|
|
int len = self->length;
|
|
PyObject *str;
|
|
|
|
for (i = j = 0; i < len; ) {
|
|
if (self->str[i] == ch) {
|
|
if (maxcount-- <= 0)
|
|
break;
|
|
SPLIT_APPEND(self->str, j, i);
|
|
i = j = i + 1;
|
|
} else
|
|
i++;
|
|
}
|
|
if (j <= len) {
|
|
SPLIT_APPEND(self->str, j, len);
|
|
}
|
|
return list;
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
return NULL;
|
|
}
|
|
|
|
static
|
|
PyObject *split_substring(PyUnicodeObject *self,
|
|
PyObject *list,
|
|
PyUnicodeObject *substring,
|
|
int maxcount)
|
|
{
|
|
register int i;
|
|
register int j;
|
|
int len = self->length;
|
|
int sublen = substring->length;
|
|
PyObject *str;
|
|
|
|
for (i = j = 0; i <= len - sublen; ) {
|
|
if (Py_UNICODE_MATCH(self, i, substring)) {
|
|
if (maxcount-- <= 0)
|
|
break;
|
|
SPLIT_APPEND(self->str, j, i);
|
|
i = j = i + sublen;
|
|
} else
|
|
i++;
|
|
}
|
|
if (j <= len) {
|
|
SPLIT_APPEND(self->str, j, len);
|
|
}
|
|
return list;
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
return NULL;
|
|
}
|
|
|
|
static
|
|
PyObject *rsplit_whitespace(PyUnicodeObject *self,
|
|
PyObject *list,
|
|
int maxcount)
|
|
{
|
|
register int i;
|
|
register int j;
|
|
int len = self->length;
|
|
PyObject *str;
|
|
|
|
for (i = j = len - 1; i >= 0; ) {
|
|
/* find a token */
|
|
while (i >= 0 && Py_UNICODE_ISSPACE(self->str[i]))
|
|
i--;
|
|
j = i;
|
|
while (i >= 0 && !Py_UNICODE_ISSPACE(self->str[i]))
|
|
i--;
|
|
if (j > i) {
|
|
if (maxcount-- <= 0)
|
|
break;
|
|
SPLIT_INSERT(self->str, i + 1, j + 1);
|
|
while (i >= 0 && Py_UNICODE_ISSPACE(self->str[i]))
|
|
i--;
|
|
j = i;
|
|
}
|
|
}
|
|
if (j >= 0) {
|
|
SPLIT_INSERT(self->str, 0, j + 1);
|
|
}
|
|
return list;
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
return NULL;
|
|
}
|
|
|
|
static
|
|
PyObject *rsplit_char(PyUnicodeObject *self,
|
|
PyObject *list,
|
|
Py_UNICODE ch,
|
|
int maxcount)
|
|
{
|
|
register int i;
|
|
register int j;
|
|
int len = self->length;
|
|
PyObject *str;
|
|
|
|
for (i = j = len - 1; i >= 0; ) {
|
|
if (self->str[i] == ch) {
|
|
if (maxcount-- <= 0)
|
|
break;
|
|
SPLIT_INSERT(self->str, i + 1, j + 1);
|
|
j = i = i - 1;
|
|
} else
|
|
i--;
|
|
}
|
|
if (j >= -1) {
|
|
SPLIT_INSERT(self->str, 0, j + 1);
|
|
}
|
|
return list;
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
return NULL;
|
|
}
|
|
|
|
static
|
|
PyObject *rsplit_substring(PyUnicodeObject *self,
|
|
PyObject *list,
|
|
PyUnicodeObject *substring,
|
|
int maxcount)
|
|
{
|
|
register int i;
|
|
register int j;
|
|
int len = self->length;
|
|
int sublen = substring->length;
|
|
PyObject *str;
|
|
|
|
for (i = len - sublen, j = len; i >= 0; ) {
|
|
if (Py_UNICODE_MATCH(self, i, substring)) {
|
|
if (maxcount-- <= 0)
|
|
break;
|
|
SPLIT_INSERT(self->str, i + sublen, j);
|
|
j = i;
|
|
i -= sublen;
|
|
} else
|
|
i--;
|
|
}
|
|
if (j >= 0) {
|
|
SPLIT_INSERT(self->str, 0, j);
|
|
}
|
|
return list;
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
return NULL;
|
|
}
|
|
|
|
#undef SPLIT_APPEND
|
|
#undef SPLIT_INSERT
|
|
|
|
static
|
|
PyObject *split(PyUnicodeObject *self,
|
|
PyUnicodeObject *substring,
|
|
int maxcount)
|
|
{
|
|
PyObject *list;
|
|
|
|
if (maxcount < 0)
|
|
maxcount = INT_MAX;
|
|
|
|
list = PyList_New(0);
|
|
if (!list)
|
|
return NULL;
|
|
|
|
if (substring == NULL)
|
|
return split_whitespace(self,list,maxcount);
|
|
|
|
else if (substring->length == 1)
|
|
return split_char(self,list,substring->str[0],maxcount);
|
|
|
|
else if (substring->length == 0) {
|
|
Py_DECREF(list);
|
|
PyErr_SetString(PyExc_ValueError, "empty separator");
|
|
return NULL;
|
|
}
|
|
else
|
|
return split_substring(self,list,substring,maxcount);
|
|
}
|
|
|
|
static
|
|
PyObject *rsplit(PyUnicodeObject *self,
|
|
PyUnicodeObject *substring,
|
|
int maxcount)
|
|
{
|
|
PyObject *list;
|
|
|
|
if (maxcount < 0)
|
|
maxcount = INT_MAX;
|
|
|
|
list = PyList_New(0);
|
|
if (!list)
|
|
return NULL;
|
|
|
|
if (substring == NULL)
|
|
return rsplit_whitespace(self,list,maxcount);
|
|
|
|
else if (substring->length == 1)
|
|
return rsplit_char(self,list,substring->str[0],maxcount);
|
|
|
|
else if (substring->length == 0) {
|
|
Py_DECREF(list);
|
|
PyErr_SetString(PyExc_ValueError, "empty separator");
|
|
return NULL;
|
|
}
|
|
else
|
|
return rsplit_substring(self,list,substring,maxcount);
|
|
}
|
|
|
|
static
|
|
PyObject *replace(PyUnicodeObject *self,
|
|
PyUnicodeObject *str1,
|
|
PyUnicodeObject *str2,
|
|
int maxcount)
|
|
{
|
|
PyUnicodeObject *u;
|
|
|
|
if (maxcount < 0)
|
|
maxcount = INT_MAX;
|
|
|
|
if (str1->length == 1 && str2->length == 1) {
|
|
int i;
|
|
|
|
/* replace characters */
|
|
if (!findchar(self->str, self->length, str1->str[0]) &&
|
|
PyUnicode_CheckExact(self)) {
|
|
/* nothing to replace, return original string */
|
|
Py_INCREF(self);
|
|
u = self;
|
|
} else {
|
|
Py_UNICODE u1 = str1->str[0];
|
|
Py_UNICODE u2 = str2->str[0];
|
|
|
|
u = (PyUnicodeObject*) PyUnicode_FromUnicode(
|
|
NULL,
|
|
self->length
|
|
);
|
|
if (u != NULL) {
|
|
Py_UNICODE_COPY(u->str, self->str,
|
|
self->length);
|
|
for (i = 0; i < u->length; i++)
|
|
if (u->str[i] == u1) {
|
|
if (--maxcount < 0)
|
|
break;
|
|
u->str[i] = u2;
|
|
}
|
|
}
|
|
}
|
|
|
|
} else {
|
|
int n, i;
|
|
Py_UNICODE *p;
|
|
|
|
/* replace strings */
|
|
n = count(self, 0, self->length, str1);
|
|
if (n > maxcount)
|
|
n = maxcount;
|
|
if (n == 0) {
|
|
/* nothing to replace, return original string */
|
|
if (PyUnicode_CheckExact(self)) {
|
|
Py_INCREF(self);
|
|
u = self;
|
|
}
|
|
else {
|
|
u = (PyUnicodeObject *)
|
|
PyUnicode_FromUnicode(self->str, self->length);
|
|
}
|
|
} else {
|
|
u = _PyUnicode_New(
|
|
self->length + n * (str2->length - str1->length));
|
|
if (u) {
|
|
i = 0;
|
|
p = u->str;
|
|
if (str1->length > 0) {
|
|
while (i <= self->length - str1->length)
|
|
if (Py_UNICODE_MATCH(self, i, str1)) {
|
|
/* replace string segment */
|
|
Py_UNICODE_COPY(p, str2->str, str2->length);
|
|
p += str2->length;
|
|
i += str1->length;
|
|
if (--n <= 0) {
|
|
/* copy remaining part */
|
|
Py_UNICODE_COPY(p, self->str+i, self->length-i);
|
|
break;
|
|
}
|
|
} else
|
|
*p++ = self->str[i++];
|
|
} else {
|
|
while (n > 0) {
|
|
Py_UNICODE_COPY(p, str2->str, str2->length);
|
|
p += str2->length;
|
|
if (--n <= 0)
|
|
break;
|
|
*p++ = self->str[i++];
|
|
}
|
|
Py_UNICODE_COPY(p, self->str+i, self->length-i);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return (PyObject *) u;
|
|
}
|
|
|
|
/* --- Unicode Object Methods --------------------------------------------- */
|
|
|
|
PyDoc_STRVAR(title__doc__,
|
|
"S.title() -> unicode\n\
|
|
\n\
|
|
Return a titlecased version of S, i.e. words start with title case\n\
|
|
characters, all remaining cased characters have lower case.");
|
|
|
|
static PyObject*
|
|
unicode_title(PyUnicodeObject *self)
|
|
{
|
|
return fixup(self, fixtitle);
|
|
}
|
|
|
|
PyDoc_STRVAR(capitalize__doc__,
|
|
"S.capitalize() -> unicode\n\
|
|
\n\
|
|
Return a capitalized version of S, i.e. make the first character\n\
|
|
have upper case.");
|
|
|
|
static PyObject*
|
|
unicode_capitalize(PyUnicodeObject *self)
|
|
{
|
|
return fixup(self, fixcapitalize);
|
|
}
|
|
|
|
#if 0
|
|
PyDoc_STRVAR(capwords__doc__,
|
|
"S.capwords() -> unicode\n\
|
|
\n\
|
|
Apply .capitalize() to all words in S and return the result with\n\
|
|
normalized whitespace (all whitespace strings are replaced by ' ').");
|
|
|
|
static PyObject*
|
|
unicode_capwords(PyUnicodeObject *self)
|
|
{
|
|
PyObject *list;
|
|
PyObject *item;
|
|
int i;
|
|
|
|
/* Split into words */
|
|
list = split(self, NULL, -1);
|
|
if (!list)
|
|
return NULL;
|
|
|
|
/* Capitalize each word */
|
|
for (i = 0; i < PyList_GET_SIZE(list); i++) {
|
|
item = fixup((PyUnicodeObject *)PyList_GET_ITEM(list, i),
|
|
fixcapitalize);
|
|
if (item == NULL)
|
|
goto onError;
|
|
Py_DECREF(PyList_GET_ITEM(list, i));
|
|
PyList_SET_ITEM(list, i, item);
|
|
}
|
|
|
|
/* Join the words to form a new string */
|
|
item = PyUnicode_Join(NULL, list);
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
return (PyObject *)item;
|
|
}
|
|
#endif
|
|
|
|
/* Argument converter. Coerces to a single unicode character */
|
|
|
|
static int
|
|
convert_uc(PyObject *obj, void *addr)
|
|
{
|
|
Py_UNICODE *fillcharloc = (Py_UNICODE *)addr;
|
|
PyObject *uniobj;
|
|
Py_UNICODE *unistr;
|
|
|
|
uniobj = PyUnicode_FromObject(obj);
|
|
if (uniobj == NULL) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"The fill character cannot be converted to Unicode");
|
|
return 0;
|
|
}
|
|
if (PyUnicode_GET_SIZE(uniobj) != 1) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"The fill character must be exactly one character long");
|
|
Py_DECREF(uniobj);
|
|
return 0;
|
|
}
|
|
unistr = PyUnicode_AS_UNICODE(uniobj);
|
|
*fillcharloc = unistr[0];
|
|
Py_DECREF(uniobj);
|
|
return 1;
|
|
}
|
|
|
|
PyDoc_STRVAR(center__doc__,
|
|
"S.center(width[, fillchar]) -> unicode\n\
|
|
\n\
|
|
Return S centered in a Unicode string of length width. Padding is\n\
|
|
done using the specified fill character (default is a space)");
|
|
|
|
static PyObject *
|
|
unicode_center(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
int marg, left;
|
|
int width;
|
|
Py_UNICODE fillchar = ' ';
|
|
|
|
if (!PyArg_ParseTuple(args, "i|O&:center", &width, convert_uc, &fillchar))
|
|
return NULL;
|
|
|
|
if (self->length >= width && PyUnicode_CheckExact(self)) {
|
|
Py_INCREF(self);
|
|
return (PyObject*) self;
|
|
}
|
|
|
|
marg = width - self->length;
|
|
left = marg / 2 + (marg & width & 1);
|
|
|
|
return (PyObject*) pad(self, left, marg - left, fillchar);
|
|
}
|
|
|
|
#if 0
|
|
|
|
/* This code should go into some future Unicode collation support
|
|
module. The basic comparison should compare ordinals on a naive
|
|
basis (this is what Java does and thus JPython too). */
|
|
|
|
/* speedy UTF-16 code point order comparison */
|
|
/* gleaned from: */
|
|
/* http://www-4.ibm.com/software/developer/library/utf16.html?dwzone=unicode */
|
|
|
|
static short utf16Fixup[32] =
|
|
{
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0x2000, -0x800, -0x800, -0x800, -0x800
|
|
};
|
|
|
|
static int
|
|
unicode_compare(PyUnicodeObject *str1, PyUnicodeObject *str2)
|
|
{
|
|
int len1, len2;
|
|
|
|
Py_UNICODE *s1 = str1->str;
|
|
Py_UNICODE *s2 = str2->str;
|
|
|
|
len1 = str1->length;
|
|
len2 = str2->length;
|
|
|
|
while (len1 > 0 && len2 > 0) {
|
|
Py_UNICODE c1, c2;
|
|
|
|
c1 = *s1++;
|
|
c2 = *s2++;
|
|
|
|
if (c1 > (1<<11) * 26)
|
|
c1 += utf16Fixup[c1>>11];
|
|
if (c2 > (1<<11) * 26)
|
|
c2 += utf16Fixup[c2>>11];
|
|
/* now c1 and c2 are in UTF-32-compatible order */
|
|
|
|
if (c1 != c2)
|
|
return (c1 < c2) ? -1 : 1;
|
|
|
|
len1--; len2--;
|
|
}
|
|
|
|
return (len1 < len2) ? -1 : (len1 != len2);
|
|
}
|
|
|
|
#else
|
|
|
|
static int
|
|
unicode_compare(PyUnicodeObject *str1, PyUnicodeObject *str2)
|
|
{
|
|
register int len1, len2;
|
|
|
|
Py_UNICODE *s1 = str1->str;
|
|
Py_UNICODE *s2 = str2->str;
|
|
|
|
len1 = str1->length;
|
|
len2 = str2->length;
|
|
|
|
while (len1 > 0 && len2 > 0) {
|
|
Py_UNICODE c1, c2;
|
|
|
|
c1 = *s1++;
|
|
c2 = *s2++;
|
|
|
|
if (c1 != c2)
|
|
return (c1 < c2) ? -1 : 1;
|
|
|
|
len1--; len2--;
|
|
}
|
|
|
|
return (len1 < len2) ? -1 : (len1 != len2);
|
|
}
|
|
|
|
#endif
|
|
|
|
int PyUnicode_Compare(PyObject *left,
|
|
PyObject *right)
|
|
{
|
|
PyUnicodeObject *u = NULL, *v = NULL;
|
|
int result;
|
|
|
|
/* Coerce the two arguments */
|
|
u = (PyUnicodeObject *)PyUnicode_FromObject(left);
|
|
if (u == NULL)
|
|
goto onError;
|
|
v = (PyUnicodeObject *)PyUnicode_FromObject(right);
|
|
if (v == NULL)
|
|
goto onError;
|
|
|
|
/* Shortcut for empty or interned objects */
|
|
if (v == u) {
|
|
Py_DECREF(u);
|
|
Py_DECREF(v);
|
|
return 0;
|
|
}
|
|
|
|
result = unicode_compare(u, v);
|
|
|
|
Py_DECREF(u);
|
|
Py_DECREF(v);
|
|
return result;
|
|
|
|
onError:
|
|
Py_XDECREF(u);
|
|
Py_XDECREF(v);
|
|
return -1;
|
|
}
|
|
|
|
int PyUnicode_Contains(PyObject *container,
|
|
PyObject *element)
|
|
{
|
|
PyUnicodeObject *u = NULL, *v = NULL;
|
|
int result, size;
|
|
register const Py_UNICODE *lhs, *end, *rhs;
|
|
|
|
/* Coerce the two arguments */
|
|
v = (PyUnicodeObject *)PyUnicode_FromObject(element);
|
|
if (v == NULL) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"'in <string>' requires string as left operand");
|
|
goto onError;
|
|
}
|
|
u = (PyUnicodeObject *)PyUnicode_FromObject(container);
|
|
if (u == NULL)
|
|
goto onError;
|
|
|
|
size = PyUnicode_GET_SIZE(v);
|
|
rhs = PyUnicode_AS_UNICODE(v);
|
|
lhs = PyUnicode_AS_UNICODE(u);
|
|
|
|
result = 0;
|
|
if (size == 1) {
|
|
end = lhs + PyUnicode_GET_SIZE(u);
|
|
while (lhs < end) {
|
|
if (*lhs++ == *rhs) {
|
|
result = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
end = lhs + (PyUnicode_GET_SIZE(u) - size);
|
|
while (lhs <= end) {
|
|
if (memcmp(lhs++, rhs, size * sizeof(Py_UNICODE)) == 0) {
|
|
result = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
Py_DECREF(u);
|
|
Py_DECREF(v);
|
|
return result;
|
|
|
|
onError:
|
|
Py_XDECREF(u);
|
|
Py_XDECREF(v);
|
|
return -1;
|
|
}
|
|
|
|
/* Concat to string or Unicode object giving a new Unicode object. */
|
|
|
|
PyObject *PyUnicode_Concat(PyObject *left,
|
|
PyObject *right)
|
|
{
|
|
PyUnicodeObject *u = NULL, *v = NULL, *w;
|
|
|
|
/* Coerce the two arguments */
|
|
u = (PyUnicodeObject *)PyUnicode_FromObject(left);
|
|
if (u == NULL)
|
|
goto onError;
|
|
v = (PyUnicodeObject *)PyUnicode_FromObject(right);
|
|
if (v == NULL)
|
|
goto onError;
|
|
|
|
/* Shortcuts */
|
|
if (v == unicode_empty) {
|
|
Py_DECREF(v);
|
|
return (PyObject *)u;
|
|
}
|
|
if (u == unicode_empty) {
|
|
Py_DECREF(u);
|
|
return (PyObject *)v;
|
|
}
|
|
|
|
/* Concat the two Unicode strings */
|
|
w = _PyUnicode_New(u->length + v->length);
|
|
if (w == NULL)
|
|
goto onError;
|
|
Py_UNICODE_COPY(w->str, u->str, u->length);
|
|
Py_UNICODE_COPY(w->str + u->length, v->str, v->length);
|
|
|
|
Py_DECREF(u);
|
|
Py_DECREF(v);
|
|
return (PyObject *)w;
|
|
|
|
onError:
|
|
Py_XDECREF(u);
|
|
Py_XDECREF(v);
|
|
return NULL;
|
|
}
|
|
|
|
PyDoc_STRVAR(count__doc__,
|
|
"S.count(sub[, start[, end]]) -> int\n\
|
|
\n\
|
|
Return the number of occurrences of substring sub in Unicode string\n\
|
|
S[start:end]. Optional arguments start and end are\n\
|
|
interpreted as in slice notation.");
|
|
|
|
static PyObject *
|
|
unicode_count(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
PyUnicodeObject *substring;
|
|
int start = 0;
|
|
int end = INT_MAX;
|
|
PyObject *result;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|O&O&:count", &substring,
|
|
_PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
|
|
return NULL;
|
|
|
|
substring = (PyUnicodeObject *)PyUnicode_FromObject(
|
|
(PyObject *)substring);
|
|
if (substring == NULL)
|
|
return NULL;
|
|
|
|
if (start < 0)
|
|
start += self->length;
|
|
if (start < 0)
|
|
start = 0;
|
|
if (end > self->length)
|
|
end = self->length;
|
|
if (end < 0)
|
|
end += self->length;
|
|
if (end < 0)
|
|
end = 0;
|
|
|
|
result = PyInt_FromLong((long) count(self, start, end, substring));
|
|
|
|
Py_DECREF(substring);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(encode__doc__,
|
|
"S.encode([encoding[,errors]]) -> string or unicode\n\
|
|
\n\
|
|
Encodes S using the codec registered for encoding. encoding defaults\n\
|
|
to the default encoding. errors may be given to set a different error\n\
|
|
handling scheme. Default is 'strict' meaning that encoding errors raise\n\
|
|
a UnicodeEncodeError. Other possible values are 'ignore', 'replace' and\n\
|
|
'xmlcharrefreplace' as well as any other name registered with\n\
|
|
codecs.register_error that can handle UnicodeEncodeErrors.");
|
|
|
|
static PyObject *
|
|
unicode_encode(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
char *encoding = NULL;
|
|
char *errors = NULL;
|
|
PyObject *v;
|
|
|
|
if (!PyArg_ParseTuple(args, "|ss:encode", &encoding, &errors))
|
|
return NULL;
|
|
v = PyUnicode_AsEncodedObject((PyObject *)self, encoding, errors);
|
|
if (v == NULL)
|
|
goto onError;
|
|
if (!PyString_Check(v) && !PyUnicode_Check(v)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"encoder did not return a string/unicode object "
|
|
"(type=%.400s)",
|
|
v->ob_type->tp_name);
|
|
Py_DECREF(v);
|
|
return NULL;
|
|
}
|
|
return v;
|
|
|
|
onError:
|
|
return NULL;
|
|
}
|
|
|
|
PyDoc_STRVAR(decode__doc__,
|
|
"S.decode([encoding[,errors]]) -> string or unicode\n\
|
|
\n\
|
|
Decodes S using the codec registered for encoding. encoding defaults\n\
|
|
to the default encoding. errors may be given to set a different error\n\
|
|
handling scheme. Default is 'strict' meaning that encoding errors raise\n\
|
|
a UnicodeDecodeError. Other possible values are 'ignore' and 'replace'\n\
|
|
as well as any other name registerd with codecs.register_error that is\n\
|
|
able to handle UnicodeDecodeErrors.");
|
|
|
|
static PyObject *
|
|
unicode_decode(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
char *encoding = NULL;
|
|
char *errors = NULL;
|
|
PyObject *v;
|
|
|
|
if (!PyArg_ParseTuple(args, "|ss:decode", &encoding, &errors))
|
|
return NULL;
|
|
v = PyUnicode_AsDecodedObject((PyObject *)self, encoding, errors);
|
|
if (v == NULL)
|
|
goto onError;
|
|
if (!PyString_Check(v) && !PyUnicode_Check(v)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"decoder did not return a string/unicode object "
|
|
"(type=%.400s)",
|
|
v->ob_type->tp_name);
|
|
Py_DECREF(v);
|
|
return NULL;
|
|
}
|
|
return v;
|
|
|
|
onError:
|
|
return NULL;
|
|
}
|
|
|
|
PyDoc_STRVAR(expandtabs__doc__,
|
|
"S.expandtabs([tabsize]) -> unicode\n\
|
|
\n\
|
|
Return a copy of S where all tab characters are expanded using spaces.\n\
|
|
If tabsize is not given, a tab size of 8 characters is assumed.");
|
|
|
|
static PyObject*
|
|
unicode_expandtabs(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
Py_UNICODE *e;
|
|
Py_UNICODE *p;
|
|
Py_UNICODE *q;
|
|
int i, j;
|
|
PyUnicodeObject *u;
|
|
int tabsize = 8;
|
|
|
|
if (!PyArg_ParseTuple(args, "|i:expandtabs", &tabsize))
|
|
return NULL;
|
|
|
|
/* First pass: determine size of output string */
|
|
i = j = 0;
|
|
e = self->str + self->length;
|
|
for (p = self->str; p < e; p++)
|
|
if (*p == '\t') {
|
|
if (tabsize > 0)
|
|
j += tabsize - (j % tabsize);
|
|
}
|
|
else {
|
|
j++;
|
|
if (*p == '\n' || *p == '\r') {
|
|
i += j;
|
|
j = 0;
|
|
}
|
|
}
|
|
|
|
/* Second pass: create output string and fill it */
|
|
u = _PyUnicode_New(i + j);
|
|
if (!u)
|
|
return NULL;
|
|
|
|
j = 0;
|
|
q = u->str;
|
|
|
|
for (p = self->str; p < e; p++)
|
|
if (*p == '\t') {
|
|
if (tabsize > 0) {
|
|
i = tabsize - (j % tabsize);
|
|
j += i;
|
|
while (i--)
|
|
*q++ = ' ';
|
|
}
|
|
}
|
|
else {
|
|
j++;
|
|
*q++ = *p;
|
|
if (*p == '\n' || *p == '\r')
|
|
j = 0;
|
|
}
|
|
|
|
return (PyObject*) u;
|
|
}
|
|
|
|
PyDoc_STRVAR(find__doc__,
|
|
"S.find(sub [,start [,end]]) -> int\n\
|
|
\n\
|
|
Return the lowest index in S where substring sub is found,\n\
|
|
such that sub is contained within s[start,end]. Optional\n\
|
|
arguments start and end are interpreted as in slice notation.\n\
|
|
\n\
|
|
Return -1 on failure.");
|
|
|
|
static PyObject *
|
|
unicode_find(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
PyUnicodeObject *substring;
|
|
int start = 0;
|
|
int end = INT_MAX;
|
|
PyObject *result;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|O&O&:find", &substring,
|
|
_PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
|
|
return NULL;
|
|
substring = (PyUnicodeObject *)PyUnicode_FromObject(
|
|
(PyObject *)substring);
|
|
if (substring == NULL)
|
|
return NULL;
|
|
|
|
result = PyInt_FromLong(findstring(self, substring, start, end, 1));
|
|
|
|
Py_DECREF(substring);
|
|
return result;
|
|
}
|
|
|
|
static PyObject *
|
|
unicode_getitem(PyUnicodeObject *self, int index)
|
|
{
|
|
if (index < 0 || index >= self->length) {
|
|
PyErr_SetString(PyExc_IndexError, "string index out of range");
|
|
return NULL;
|
|
}
|
|
|
|
return (PyObject*) PyUnicode_FromUnicode(&self->str[index], 1);
|
|
}
|
|
|
|
static long
|
|
unicode_hash(PyUnicodeObject *self)
|
|
{
|
|
/* Since Unicode objects compare equal to their ASCII string
|
|
counterparts, they should use the individual character values
|
|
as basis for their hash value. This is needed to assure that
|
|
strings and Unicode objects behave in the same way as
|
|
dictionary keys. */
|
|
|
|
register int len;
|
|
register Py_UNICODE *p;
|
|
register long x;
|
|
|
|
if (self->hash != -1)
|
|
return self->hash;
|
|
len = PyUnicode_GET_SIZE(self);
|
|
p = PyUnicode_AS_UNICODE(self);
|
|
x = *p << 7;
|
|
while (--len >= 0)
|
|
x = (1000003*x) ^ *p++;
|
|
x ^= PyUnicode_GET_SIZE(self);
|
|
if (x == -1)
|
|
x = -2;
|
|
self->hash = x;
|
|
return x;
|
|
}
|
|
|
|
PyDoc_STRVAR(index__doc__,
|
|
"S.index(sub [,start [,end]]) -> int\n\
|
|
\n\
|
|
Like S.find() but raise ValueError when the substring is not found.");
|
|
|
|
static PyObject *
|
|
unicode_index(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
int result;
|
|
PyUnicodeObject *substring;
|
|
int start = 0;
|
|
int end = INT_MAX;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|O&O&:index", &substring,
|
|
_PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
|
|
return NULL;
|
|
|
|
substring = (PyUnicodeObject *)PyUnicode_FromObject(
|
|
(PyObject *)substring);
|
|
if (substring == NULL)
|
|
return NULL;
|
|
|
|
result = findstring(self, substring, start, end, 1);
|
|
|
|
Py_DECREF(substring);
|
|
if (result < 0) {
|
|
PyErr_SetString(PyExc_ValueError, "substring not found");
|
|
return NULL;
|
|
}
|
|
return PyInt_FromLong(result);
|
|
}
|
|
|
|
PyDoc_STRVAR(islower__doc__,
|
|
"S.islower() -> bool\n\
|
|
\n\
|
|
Return True if all cased characters in S are lowercase and there is\n\
|
|
at least one cased character in S, False otherwise.");
|
|
|
|
static PyObject*
|
|
unicode_islower(PyUnicodeObject *self)
|
|
{
|
|
register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self);
|
|
register const Py_UNICODE *e;
|
|
int cased;
|
|
|
|
/* Shortcut for single character strings */
|
|
if (PyUnicode_GET_SIZE(self) == 1)
|
|
return PyBool_FromLong(Py_UNICODE_ISLOWER(*p));
|
|
|
|
/* Special case for empty strings */
|
|
if (PyString_GET_SIZE(self) == 0)
|
|
return PyBool_FromLong(0);
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
cased = 0;
|
|
for (; p < e; p++) {
|
|
register const Py_UNICODE ch = *p;
|
|
|
|
if (Py_UNICODE_ISUPPER(ch) || Py_UNICODE_ISTITLE(ch))
|
|
return PyBool_FromLong(0);
|
|
else if (!cased && Py_UNICODE_ISLOWER(ch))
|
|
cased = 1;
|
|
}
|
|
return PyBool_FromLong(cased);
|
|
}
|
|
|
|
PyDoc_STRVAR(isupper__doc__,
|
|
"S.isupper() -> bool\n\
|
|
\n\
|
|
Return True if all cased characters in S are uppercase and there is\n\
|
|
at least one cased character in S, False otherwise.");
|
|
|
|
static PyObject*
|
|
unicode_isupper(PyUnicodeObject *self)
|
|
{
|
|
register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self);
|
|
register const Py_UNICODE *e;
|
|
int cased;
|
|
|
|
/* Shortcut for single character strings */
|
|
if (PyUnicode_GET_SIZE(self) == 1)
|
|
return PyBool_FromLong(Py_UNICODE_ISUPPER(*p) != 0);
|
|
|
|
/* Special case for empty strings */
|
|
if (PyString_GET_SIZE(self) == 0)
|
|
return PyBool_FromLong(0);
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
cased = 0;
|
|
for (; p < e; p++) {
|
|
register const Py_UNICODE ch = *p;
|
|
|
|
if (Py_UNICODE_ISLOWER(ch) || Py_UNICODE_ISTITLE(ch))
|
|
return PyBool_FromLong(0);
|
|
else if (!cased && Py_UNICODE_ISUPPER(ch))
|
|
cased = 1;
|
|
}
|
|
return PyBool_FromLong(cased);
|
|
}
|
|
|
|
PyDoc_STRVAR(istitle__doc__,
|
|
"S.istitle() -> bool\n\
|
|
\n\
|
|
Return True if S is a titlecased string and there is at least one\n\
|
|
character in S, i.e. upper- and titlecase characters may only\n\
|
|
follow uncased characters and lowercase characters only cased ones.\n\
|
|
Return False otherwise.");
|
|
|
|
static PyObject*
|
|
unicode_istitle(PyUnicodeObject *self)
|
|
{
|
|
register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self);
|
|
register const Py_UNICODE *e;
|
|
int cased, previous_is_cased;
|
|
|
|
/* Shortcut for single character strings */
|
|
if (PyUnicode_GET_SIZE(self) == 1)
|
|
return PyBool_FromLong((Py_UNICODE_ISTITLE(*p) != 0) ||
|
|
(Py_UNICODE_ISUPPER(*p) != 0));
|
|
|
|
/* Special case for empty strings */
|
|
if (PyString_GET_SIZE(self) == 0)
|
|
return PyBool_FromLong(0);
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
cased = 0;
|
|
previous_is_cased = 0;
|
|
for (; p < e; p++) {
|
|
register const Py_UNICODE ch = *p;
|
|
|
|
if (Py_UNICODE_ISUPPER(ch) || Py_UNICODE_ISTITLE(ch)) {
|
|
if (previous_is_cased)
|
|
return PyBool_FromLong(0);
|
|
previous_is_cased = 1;
|
|
cased = 1;
|
|
}
|
|
else if (Py_UNICODE_ISLOWER(ch)) {
|
|
if (!previous_is_cased)
|
|
return PyBool_FromLong(0);
|
|
previous_is_cased = 1;
|
|
cased = 1;
|
|
}
|
|
else
|
|
previous_is_cased = 0;
|
|
}
|
|
return PyBool_FromLong(cased);
|
|
}
|
|
|
|
PyDoc_STRVAR(isspace__doc__,
|
|
"S.isspace() -> bool\n\
|
|
\n\
|
|
Return True if all characters in S are whitespace\n\
|
|
and there is at least one character in S, False otherwise.");
|
|
|
|
static PyObject*
|
|
unicode_isspace(PyUnicodeObject *self)
|
|
{
|
|
register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self);
|
|
register const Py_UNICODE *e;
|
|
|
|
/* Shortcut for single character strings */
|
|
if (PyUnicode_GET_SIZE(self) == 1 &&
|
|
Py_UNICODE_ISSPACE(*p))
|
|
return PyBool_FromLong(1);
|
|
|
|
/* Special case for empty strings */
|
|
if (PyString_GET_SIZE(self) == 0)
|
|
return PyBool_FromLong(0);
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
for (; p < e; p++) {
|
|
if (!Py_UNICODE_ISSPACE(*p))
|
|
return PyBool_FromLong(0);
|
|
}
|
|
return PyBool_FromLong(1);
|
|
}
|
|
|
|
PyDoc_STRVAR(isalpha__doc__,
|
|
"S.isalpha() -> bool\n\
|
|
\n\
|
|
Return True if all characters in S are alphabetic\n\
|
|
and there is at least one character in S, False otherwise.");
|
|
|
|
static PyObject*
|
|
unicode_isalpha(PyUnicodeObject *self)
|
|
{
|
|
register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self);
|
|
register const Py_UNICODE *e;
|
|
|
|
/* Shortcut for single character strings */
|
|
if (PyUnicode_GET_SIZE(self) == 1 &&
|
|
Py_UNICODE_ISALPHA(*p))
|
|
return PyBool_FromLong(1);
|
|
|
|
/* Special case for empty strings */
|
|
if (PyString_GET_SIZE(self) == 0)
|
|
return PyBool_FromLong(0);
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
for (; p < e; p++) {
|
|
if (!Py_UNICODE_ISALPHA(*p))
|
|
return PyBool_FromLong(0);
|
|
}
|
|
return PyBool_FromLong(1);
|
|
}
|
|
|
|
PyDoc_STRVAR(isalnum__doc__,
|
|
"S.isalnum() -> bool\n\
|
|
\n\
|
|
Return True if all characters in S are alphanumeric\n\
|
|
and there is at least one character in S, False otherwise.");
|
|
|
|
static PyObject*
|
|
unicode_isalnum(PyUnicodeObject *self)
|
|
{
|
|
register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self);
|
|
register const Py_UNICODE *e;
|
|
|
|
/* Shortcut for single character strings */
|
|
if (PyUnicode_GET_SIZE(self) == 1 &&
|
|
Py_UNICODE_ISALNUM(*p))
|
|
return PyBool_FromLong(1);
|
|
|
|
/* Special case for empty strings */
|
|
if (PyString_GET_SIZE(self) == 0)
|
|
return PyBool_FromLong(0);
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
for (; p < e; p++) {
|
|
if (!Py_UNICODE_ISALNUM(*p))
|
|
return PyBool_FromLong(0);
|
|
}
|
|
return PyBool_FromLong(1);
|
|
}
|
|
|
|
PyDoc_STRVAR(isdecimal__doc__,
|
|
"S.isdecimal() -> bool\n\
|
|
\n\
|
|
Return True if there are only decimal characters in S,\n\
|
|
False otherwise.");
|
|
|
|
static PyObject*
|
|
unicode_isdecimal(PyUnicodeObject *self)
|
|
{
|
|
register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self);
|
|
register const Py_UNICODE *e;
|
|
|
|
/* Shortcut for single character strings */
|
|
if (PyUnicode_GET_SIZE(self) == 1 &&
|
|
Py_UNICODE_ISDECIMAL(*p))
|
|
return PyBool_FromLong(1);
|
|
|
|
/* Special case for empty strings */
|
|
if (PyString_GET_SIZE(self) == 0)
|
|
return PyBool_FromLong(0);
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
for (; p < e; p++) {
|
|
if (!Py_UNICODE_ISDECIMAL(*p))
|
|
return PyBool_FromLong(0);
|
|
}
|
|
return PyBool_FromLong(1);
|
|
}
|
|
|
|
PyDoc_STRVAR(isdigit__doc__,
|
|
"S.isdigit() -> bool\n\
|
|
\n\
|
|
Return True if all characters in S are digits\n\
|
|
and there is at least one character in S, False otherwise.");
|
|
|
|
static PyObject*
|
|
unicode_isdigit(PyUnicodeObject *self)
|
|
{
|
|
register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self);
|
|
register const Py_UNICODE *e;
|
|
|
|
/* Shortcut for single character strings */
|
|
if (PyUnicode_GET_SIZE(self) == 1 &&
|
|
Py_UNICODE_ISDIGIT(*p))
|
|
return PyBool_FromLong(1);
|
|
|
|
/* Special case for empty strings */
|
|
if (PyString_GET_SIZE(self) == 0)
|
|
return PyBool_FromLong(0);
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
for (; p < e; p++) {
|
|
if (!Py_UNICODE_ISDIGIT(*p))
|
|
return PyBool_FromLong(0);
|
|
}
|
|
return PyBool_FromLong(1);
|
|
}
|
|
|
|
PyDoc_STRVAR(isnumeric__doc__,
|
|
"S.isnumeric() -> bool\n\
|
|
\n\
|
|
Return True if there are only numeric characters in S,\n\
|
|
False otherwise.");
|
|
|
|
static PyObject*
|
|
unicode_isnumeric(PyUnicodeObject *self)
|
|
{
|
|
register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self);
|
|
register const Py_UNICODE *e;
|
|
|
|
/* Shortcut for single character strings */
|
|
if (PyUnicode_GET_SIZE(self) == 1 &&
|
|
Py_UNICODE_ISNUMERIC(*p))
|
|
return PyBool_FromLong(1);
|
|
|
|
/* Special case for empty strings */
|
|
if (PyString_GET_SIZE(self) == 0)
|
|
return PyBool_FromLong(0);
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
for (; p < e; p++) {
|
|
if (!Py_UNICODE_ISNUMERIC(*p))
|
|
return PyBool_FromLong(0);
|
|
}
|
|
return PyBool_FromLong(1);
|
|
}
|
|
|
|
PyDoc_STRVAR(iswide__doc__,
|
|
"S.iswide() -> bool\n\
|
|
\n\
|
|
Return True if all characters in S are wide width\n\
|
|
and there is at least one character in S, False otherwise.");
|
|
|
|
static PyObject*
|
|
unicode_iswide(PyUnicodeObject *self)
|
|
{
|
|
register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self);
|
|
register const Py_UNICODE *e;
|
|
|
|
/* Shortcut for single character strings */
|
|
if (PyUnicode_GET_SIZE(self) == 1 &&
|
|
Py_UNICODE_ISWIDE(*p))
|
|
Py_RETURN_TRUE;
|
|
|
|
/* Special case for empty strings */
|
|
if (PyString_GET_SIZE(self) == 0)
|
|
Py_RETURN_FALSE;
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
for (; p < e; p++) {
|
|
if (!Py_UNICODE_ISWIDE(*p))
|
|
Py_RETURN_FALSE;
|
|
}
|
|
Py_RETURN_TRUE;
|
|
}
|
|
|
|
PyDoc_STRVAR(join__doc__,
|
|
"S.join(sequence) -> unicode\n\
|
|
\n\
|
|
Return a string which is the concatenation of the strings in the\n\
|
|
sequence. The separator between elements is S.");
|
|
|
|
static PyObject*
|
|
unicode_join(PyObject *self, PyObject *data)
|
|
{
|
|
return PyUnicode_Join(self, data);
|
|
}
|
|
|
|
static int
|
|
unicode_length(PyUnicodeObject *self)
|
|
{
|
|
return self->length;
|
|
}
|
|
|
|
PyDoc_STRVAR(ljust__doc__,
|
|
"S.ljust(width[, fillchar]) -> int\n\
|
|
\n\
|
|
Return S left justified in a Unicode string of length width. Padding is\n\
|
|
done using the specified fill character (default is a space).");
|
|
|
|
static PyObject *
|
|
unicode_ljust(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
int width;
|
|
Py_UNICODE fillchar = ' ';
|
|
|
|
if (!PyArg_ParseTuple(args, "i|O&:ljust", &width, convert_uc, &fillchar))
|
|
return NULL;
|
|
|
|
if (self->length >= width && PyUnicode_CheckExact(self)) {
|
|
Py_INCREF(self);
|
|
return (PyObject*) self;
|
|
}
|
|
|
|
return (PyObject*) pad(self, 0, width - self->length, fillchar);
|
|
}
|
|
|
|
PyDoc_STRVAR(lower__doc__,
|
|
"S.lower() -> unicode\n\
|
|
\n\
|
|
Return a copy of the string S converted to lowercase.");
|
|
|
|
static PyObject*
|
|
unicode_lower(PyUnicodeObject *self)
|
|
{
|
|
return fixup(self, fixlower);
|
|
}
|
|
|
|
#define LEFTSTRIP 0
|
|
#define RIGHTSTRIP 1
|
|
#define BOTHSTRIP 2
|
|
|
|
/* Arrays indexed by above */
|
|
static const char *stripformat[] = {"|O:lstrip", "|O:rstrip", "|O:strip"};
|
|
|
|
#define STRIPNAME(i) (stripformat[i]+3)
|
|
|
|
static const Py_UNICODE *
|
|
unicode_memchr(const Py_UNICODE *s, Py_UNICODE c, size_t n)
|
|
{
|
|
size_t i;
|
|
for (i = 0; i < n; ++i)
|
|
if (s[i] == c)
|
|
return s+i;
|
|
return NULL;
|
|
}
|
|
|
|
/* externally visible for str.strip(unicode) */
|
|
PyObject *
|
|
_PyUnicode_XStrip(PyUnicodeObject *self, int striptype, PyObject *sepobj)
|
|
{
|
|
Py_UNICODE *s = PyUnicode_AS_UNICODE(self);
|
|
int len = PyUnicode_GET_SIZE(self);
|
|
Py_UNICODE *sep = PyUnicode_AS_UNICODE(sepobj);
|
|
int seplen = PyUnicode_GET_SIZE(sepobj);
|
|
int i, j;
|
|
|
|
i = 0;
|
|
if (striptype != RIGHTSTRIP) {
|
|
while (i < len && unicode_memchr(sep, s[i], seplen)) {
|
|
i++;
|
|
}
|
|
}
|
|
|
|
j = len;
|
|
if (striptype != LEFTSTRIP) {
|
|
do {
|
|
j--;
|
|
} while (j >= i && unicode_memchr(sep, s[j], seplen));
|
|
j++;
|
|
}
|
|
|
|
if (i == 0 && j == len && PyUnicode_CheckExact(self)) {
|
|
Py_INCREF(self);
|
|
return (PyObject*)self;
|
|
}
|
|
else
|
|
return PyUnicode_FromUnicode(s+i, j-i);
|
|
}
|
|
|
|
|
|
static PyObject *
|
|
do_strip(PyUnicodeObject *self, int striptype)
|
|
{
|
|
Py_UNICODE *s = PyUnicode_AS_UNICODE(self);
|
|
int len = PyUnicode_GET_SIZE(self), i, j;
|
|
|
|
i = 0;
|
|
if (striptype != RIGHTSTRIP) {
|
|
while (i < len && Py_UNICODE_ISSPACE(s[i])) {
|
|
i++;
|
|
}
|
|
}
|
|
|
|
j = len;
|
|
if (striptype != LEFTSTRIP) {
|
|
do {
|
|
j--;
|
|
} while (j >= i && Py_UNICODE_ISSPACE(s[j]));
|
|
j++;
|
|
}
|
|
|
|
if (i == 0 && j == len && PyUnicode_CheckExact(self)) {
|
|
Py_INCREF(self);
|
|
return (PyObject*)self;
|
|
}
|
|
else
|
|
return PyUnicode_FromUnicode(s+i, j-i);
|
|
}
|
|
|
|
|
|
static PyObject *
|
|
do_argstrip(PyUnicodeObject *self, int striptype, PyObject *args)
|
|
{
|
|
PyObject *sep = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, (char *)stripformat[striptype], &sep))
|
|
return NULL;
|
|
|
|
if (sep != NULL && sep != Py_None) {
|
|
if (PyUnicode_Check(sep))
|
|
return _PyUnicode_XStrip(self, striptype, sep);
|
|
else if (PyString_Check(sep)) {
|
|
PyObject *res;
|
|
sep = PyUnicode_FromObject(sep);
|
|
if (sep==NULL)
|
|
return NULL;
|
|
res = _PyUnicode_XStrip(self, striptype, sep);
|
|
Py_DECREF(sep);
|
|
return res;
|
|
}
|
|
else {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"%s arg must be None, unicode or str",
|
|
STRIPNAME(striptype));
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
return do_strip(self, striptype);
|
|
}
|
|
|
|
|
|
PyDoc_STRVAR(strip__doc__,
|
|
"S.strip([chars]) -> unicode\n\
|
|
\n\
|
|
Return a copy of the string S with leading and trailing\n\
|
|
whitespace removed.\n\
|
|
If chars is given and not None, remove characters in chars instead.\n\
|
|
If chars is a str, it will be converted to unicode before stripping");
|
|
|
|
static PyObject *
|
|
unicode_strip(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
if (PyTuple_GET_SIZE(args) == 0)
|
|
return do_strip(self, BOTHSTRIP); /* Common case */
|
|
else
|
|
return do_argstrip(self, BOTHSTRIP, args);
|
|
}
|
|
|
|
|
|
PyDoc_STRVAR(lstrip__doc__,
|
|
"S.lstrip([chars]) -> unicode\n\
|
|
\n\
|
|
Return a copy of the string S with leading whitespace removed.\n\
|
|
If chars is given and not None, remove characters in chars instead.\n\
|
|
If chars is a str, it will be converted to unicode before stripping");
|
|
|
|
static PyObject *
|
|
unicode_lstrip(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
if (PyTuple_GET_SIZE(args) == 0)
|
|
return do_strip(self, LEFTSTRIP); /* Common case */
|
|
else
|
|
return do_argstrip(self, LEFTSTRIP, args);
|
|
}
|
|
|
|
|
|
PyDoc_STRVAR(rstrip__doc__,
|
|
"S.rstrip([chars]) -> unicode\n\
|
|
\n\
|
|
Return a copy of the string S with trailing whitespace removed.\n\
|
|
If chars is given and not None, remove characters in chars instead.\n\
|
|
If chars is a str, it will be converted to unicode before stripping");
|
|
|
|
static PyObject *
|
|
unicode_rstrip(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
if (PyTuple_GET_SIZE(args) == 0)
|
|
return do_strip(self, RIGHTSTRIP); /* Common case */
|
|
else
|
|
return do_argstrip(self, RIGHTSTRIP, args);
|
|
}
|
|
|
|
|
|
static PyObject*
|
|
unicode_repeat(PyUnicodeObject *str, int len)
|
|
{
|
|
PyUnicodeObject *u;
|
|
Py_UNICODE *p;
|
|
int nchars;
|
|
size_t nbytes;
|
|
|
|
if (len < 0)
|
|
len = 0;
|
|
|
|
if (len == 1 && PyUnicode_CheckExact(str)) {
|
|
/* no repeat, return original string */
|
|
Py_INCREF(str);
|
|
return (PyObject*) str;
|
|
}
|
|
|
|
/* ensure # of chars needed doesn't overflow int and # of bytes
|
|
* needed doesn't overflow size_t
|
|
*/
|
|
nchars = len * str->length;
|
|
if (len && nchars / len != str->length) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"repeated string is too long");
|
|
return NULL;
|
|
}
|
|
nbytes = (nchars + 1) * sizeof(Py_UNICODE);
|
|
if (nbytes / sizeof(Py_UNICODE) != (size_t)(nchars + 1)) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"repeated string is too long");
|
|
return NULL;
|
|
}
|
|
u = _PyUnicode_New(nchars);
|
|
if (!u)
|
|
return NULL;
|
|
|
|
p = u->str;
|
|
|
|
while (len-- > 0) {
|
|
Py_UNICODE_COPY(p, str->str, str->length);
|
|
p += str->length;
|
|
}
|
|
|
|
return (PyObject*) u;
|
|
}
|
|
|
|
PyObject *PyUnicode_Replace(PyObject *obj,
|
|
PyObject *subobj,
|
|
PyObject *replobj,
|
|
int maxcount)
|
|
{
|
|
PyObject *self;
|
|
PyObject *str1;
|
|
PyObject *str2;
|
|
PyObject *result;
|
|
|
|
self = PyUnicode_FromObject(obj);
|
|
if (self == NULL)
|
|
return NULL;
|
|
str1 = PyUnicode_FromObject(subobj);
|
|
if (str1 == NULL) {
|
|
Py_DECREF(self);
|
|
return NULL;
|
|
}
|
|
str2 = PyUnicode_FromObject(replobj);
|
|
if (str2 == NULL) {
|
|
Py_DECREF(self);
|
|
Py_DECREF(str1);
|
|
return NULL;
|
|
}
|
|
result = replace((PyUnicodeObject *)self,
|
|
(PyUnicodeObject *)str1,
|
|
(PyUnicodeObject *)str2,
|
|
maxcount);
|
|
Py_DECREF(self);
|
|
Py_DECREF(str1);
|
|
Py_DECREF(str2);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(replace__doc__,
|
|
"S.replace (old, new[, maxsplit]) -> unicode\n\
|
|
\n\
|
|
Return a copy of S with all occurrences of substring\n\
|
|
old replaced by new. If the optional argument maxsplit is\n\
|
|
given, only the first maxsplit occurrences are replaced.");
|
|
|
|
static PyObject*
|
|
unicode_replace(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
PyUnicodeObject *str1;
|
|
PyUnicodeObject *str2;
|
|
int maxcount = -1;
|
|
PyObject *result;
|
|
|
|
if (!PyArg_ParseTuple(args, "OO|i:replace", &str1, &str2, &maxcount))
|
|
return NULL;
|
|
str1 = (PyUnicodeObject *)PyUnicode_FromObject((PyObject *)str1);
|
|
if (str1 == NULL)
|
|
return NULL;
|
|
str2 = (PyUnicodeObject *)PyUnicode_FromObject((PyObject *)str2);
|
|
if (str2 == NULL) {
|
|
Py_DECREF(str1);
|
|
return NULL;
|
|
}
|
|
|
|
result = replace(self, str1, str2, maxcount);
|
|
|
|
Py_DECREF(str1);
|
|
Py_DECREF(str2);
|
|
return result;
|
|
}
|
|
|
|
static
|
|
PyObject *unicode_repr(PyObject *unicode)
|
|
{
|
|
return unicodeescape_string(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode),
|
|
1);
|
|
}
|
|
|
|
PyDoc_STRVAR(rfind__doc__,
|
|
"S.rfind(sub [,start [,end]]) -> int\n\
|
|
\n\
|
|
Return the highest index in S where substring sub is found,\n\
|
|
such that sub is contained within s[start,end]. Optional\n\
|
|
arguments start and end are interpreted as in slice notation.\n\
|
|
\n\
|
|
Return -1 on failure.");
|
|
|
|
static PyObject *
|
|
unicode_rfind(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
PyUnicodeObject *substring;
|
|
int start = 0;
|
|
int end = INT_MAX;
|
|
PyObject *result;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|O&O&:rfind", &substring,
|
|
_PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
|
|
return NULL;
|
|
substring = (PyUnicodeObject *)PyUnicode_FromObject(
|
|
(PyObject *)substring);
|
|
if (substring == NULL)
|
|
return NULL;
|
|
|
|
result = PyInt_FromLong(findstring(self, substring, start, end, -1));
|
|
|
|
Py_DECREF(substring);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(rindex__doc__,
|
|
"S.rindex(sub [,start [,end]]) -> int\n\
|
|
\n\
|
|
Like S.rfind() but raise ValueError when the substring is not found.");
|
|
|
|
static PyObject *
|
|
unicode_rindex(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
int result;
|
|
PyUnicodeObject *substring;
|
|
int start = 0;
|
|
int end = INT_MAX;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|O&O&:rindex", &substring,
|
|
_PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
|
|
return NULL;
|
|
substring = (PyUnicodeObject *)PyUnicode_FromObject(
|
|
(PyObject *)substring);
|
|
if (substring == NULL)
|
|
return NULL;
|
|
|
|
result = findstring(self, substring, start, end, -1);
|
|
|
|
Py_DECREF(substring);
|
|
if (result < 0) {
|
|
PyErr_SetString(PyExc_ValueError, "substring not found");
|
|
return NULL;
|
|
}
|
|
return PyInt_FromLong(result);
|
|
}
|
|
|
|
PyDoc_STRVAR(rjust__doc__,
|
|
"S.rjust(width[, fillchar]) -> unicode\n\
|
|
\n\
|
|
Return S right justified in a Unicode string of length width. Padding is\n\
|
|
done using the specified fill character (default is a space).");
|
|
|
|
static PyObject *
|
|
unicode_rjust(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
int width;
|
|
Py_UNICODE fillchar = ' ';
|
|
|
|
if (!PyArg_ParseTuple(args, "i|O&:rjust", &width, convert_uc, &fillchar))
|
|
return NULL;
|
|
|
|
if (self->length >= width && PyUnicode_CheckExact(self)) {
|
|
Py_INCREF(self);
|
|
return (PyObject*) self;
|
|
}
|
|
|
|
return (PyObject*) pad(self, width - self->length, 0, fillchar);
|
|
}
|
|
|
|
static PyObject*
|
|
unicode_slice(PyUnicodeObject *self, int start, int end)
|
|
{
|
|
/* standard clamping */
|
|
if (start < 0)
|
|
start = 0;
|
|
if (end < 0)
|
|
end = 0;
|
|
if (end > self->length)
|
|
end = self->length;
|
|
if (start == 0 && end == self->length && PyUnicode_CheckExact(self)) {
|
|
/* full slice, return original string */
|
|
Py_INCREF(self);
|
|
return (PyObject*) self;
|
|
}
|
|
if (start > end)
|
|
start = end;
|
|
/* copy slice */
|
|
return (PyObject*) PyUnicode_FromUnicode(self->str + start,
|
|
end - start);
|
|
}
|
|
|
|
PyObject *PyUnicode_Split(PyObject *s,
|
|
PyObject *sep,
|
|
int maxsplit)
|
|
{
|
|
PyObject *result;
|
|
|
|
s = PyUnicode_FromObject(s);
|
|
if (s == NULL)
|
|
return NULL;
|
|
if (sep != NULL) {
|
|
sep = PyUnicode_FromObject(sep);
|
|
if (sep == NULL) {
|
|
Py_DECREF(s);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
result = split((PyUnicodeObject *)s, (PyUnicodeObject *)sep, maxsplit);
|
|
|
|
Py_DECREF(s);
|
|
Py_XDECREF(sep);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(split__doc__,
|
|
"S.split([sep [,maxsplit]]) -> list of strings\n\
|
|
\n\
|
|
Return a list of the words in S, using sep as the\n\
|
|
delimiter string. If maxsplit is given, at most maxsplit\n\
|
|
splits are done. If sep is not specified, any whitespace string\n\
|
|
is a separator.");
|
|
|
|
static PyObject*
|
|
unicode_split(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
PyObject *substring = Py_None;
|
|
int maxcount = -1;
|
|
|
|
if (!PyArg_ParseTuple(args, "|Oi:split", &substring, &maxcount))
|
|
return NULL;
|
|
|
|
if (substring == Py_None)
|
|
return split(self, NULL, maxcount);
|
|
else if (PyUnicode_Check(substring))
|
|
return split(self, (PyUnicodeObject *)substring, maxcount);
|
|
else
|
|
return PyUnicode_Split((PyObject *)self, substring, maxcount);
|
|
}
|
|
|
|
PyObject *PyUnicode_RSplit(PyObject *s,
|
|
PyObject *sep,
|
|
int maxsplit)
|
|
{
|
|
PyObject *result;
|
|
|
|
s = PyUnicode_FromObject(s);
|
|
if (s == NULL)
|
|
return NULL;
|
|
if (sep != NULL) {
|
|
sep = PyUnicode_FromObject(sep);
|
|
if (sep == NULL) {
|
|
Py_DECREF(s);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
result = rsplit((PyUnicodeObject *)s, (PyUnicodeObject *)sep, maxsplit);
|
|
|
|
Py_DECREF(s);
|
|
Py_XDECREF(sep);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(rsplit__doc__,
|
|
"S.rsplit([sep [,maxsplit]]) -> list of strings\n\
|
|
\n\
|
|
Return a list of the words in S, using sep as the\n\
|
|
delimiter string, starting at the end of the string and\n\
|
|
working to the front. If maxsplit is given, at most maxsplit\n\
|
|
splits are done. If sep is not specified, any whitespace string\n\
|
|
is a separator.");
|
|
|
|
static PyObject*
|
|
unicode_rsplit(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
PyObject *substring = Py_None;
|
|
int maxcount = -1;
|
|
|
|
if (!PyArg_ParseTuple(args, "|Oi:rsplit", &substring, &maxcount))
|
|
return NULL;
|
|
|
|
if (substring == Py_None)
|
|
return rsplit(self, NULL, maxcount);
|
|
else if (PyUnicode_Check(substring))
|
|
return rsplit(self, (PyUnicodeObject *)substring, maxcount);
|
|
else
|
|
return PyUnicode_RSplit((PyObject *)self, substring, maxcount);
|
|
}
|
|
|
|
PyDoc_STRVAR(splitlines__doc__,
|
|
"S.splitlines([keepends]]) -> list of strings\n\
|
|
\n\
|
|
Return a list of the lines in S, breaking at line boundaries.\n\
|
|
Line breaks are not included in the resulting list unless keepends\n\
|
|
is given and true.");
|
|
|
|
static PyObject*
|
|
unicode_splitlines(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
int keepends = 0;
|
|
|
|
if (!PyArg_ParseTuple(args, "|i:splitlines", &keepends))
|
|
return NULL;
|
|
|
|
return PyUnicode_Splitlines((PyObject *)self, keepends);
|
|
}
|
|
|
|
static
|
|
PyObject *unicode_str(PyUnicodeObject *self)
|
|
{
|
|
return PyUnicode_AsEncodedString((PyObject *)self, NULL, NULL);
|
|
}
|
|
|
|
PyDoc_STRVAR(swapcase__doc__,
|
|
"S.swapcase() -> unicode\n\
|
|
\n\
|
|
Return a copy of S with uppercase characters converted to lowercase\n\
|
|
and vice versa.");
|
|
|
|
static PyObject*
|
|
unicode_swapcase(PyUnicodeObject *self)
|
|
{
|
|
return fixup(self, fixswapcase);
|
|
}
|
|
|
|
PyDoc_STRVAR(translate__doc__,
|
|
"S.translate(table) -> unicode\n\
|
|
\n\
|
|
Return a copy of the string S, where all characters have been mapped\n\
|
|
through the given translation table, which must be a mapping of\n\
|
|
Unicode ordinals to Unicode ordinals, Unicode strings or None.\n\
|
|
Unmapped characters are left untouched. Characters mapped to None\n\
|
|
are deleted.");
|
|
|
|
static PyObject*
|
|
unicode_translate(PyUnicodeObject *self, PyObject *table)
|
|
{
|
|
return PyUnicode_TranslateCharmap(self->str,
|
|
self->length,
|
|
table,
|
|
"ignore");
|
|
}
|
|
|
|
PyDoc_STRVAR(upper__doc__,
|
|
"S.upper() -> unicode\n\
|
|
\n\
|
|
Return a copy of S converted to uppercase.");
|
|
|
|
static PyObject*
|
|
unicode_upper(PyUnicodeObject *self)
|
|
{
|
|
return fixup(self, fixupper);
|
|
}
|
|
|
|
PyDoc_STRVAR(width__doc__,
|
|
"S.width() -> unicode\n\
|
|
\n\
|
|
Return a fixed-width representation length of S.");
|
|
|
|
static PyObject*
|
|
unicode_width(PyObject *self)
|
|
{
|
|
int width = PyUnicode_GetWidth(self);
|
|
if (width == -1)
|
|
return NULL;
|
|
else
|
|
return PyInt_FromLong((long)width);
|
|
}
|
|
|
|
PyDoc_STRVAR(zfill__doc__,
|
|
"S.zfill(width) -> unicode\n\
|
|
\n\
|
|
Pad a numeric string x with zeros on the left, to fill a field\n\
|
|
of the specified width. The string x is never truncated.");
|
|
|
|
static PyObject *
|
|
unicode_zfill(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
int fill;
|
|
PyUnicodeObject *u;
|
|
|
|
int width;
|
|
if (!PyArg_ParseTuple(args, "i:zfill", &width))
|
|
return NULL;
|
|
|
|
if (self->length >= width) {
|
|
if (PyUnicode_CheckExact(self)) {
|
|
Py_INCREF(self);
|
|
return (PyObject*) self;
|
|
}
|
|
else
|
|
return PyUnicode_FromUnicode(
|
|
PyUnicode_AS_UNICODE(self),
|
|
PyUnicode_GET_SIZE(self)
|
|
);
|
|
}
|
|
|
|
fill = width - self->length;
|
|
|
|
u = pad(self, fill, 0, '0');
|
|
|
|
if (u == NULL)
|
|
return NULL;
|
|
|
|
if (u->str[fill] == '+' || u->str[fill] == '-') {
|
|
/* move sign to beginning of string */
|
|
u->str[0] = u->str[fill];
|
|
u->str[fill] = '0';
|
|
}
|
|
|
|
return (PyObject*) u;
|
|
}
|
|
|
|
#if 0
|
|
static PyObject*
|
|
unicode_freelistsize(PyUnicodeObject *self)
|
|
{
|
|
return PyInt_FromLong(unicode_freelist_size);
|
|
}
|
|
#endif
|
|
|
|
PyDoc_STRVAR(startswith__doc__,
|
|
"S.startswith(prefix[, start[, end]]) -> bool\n\
|
|
\n\
|
|
Return True if S starts with the specified prefix, False otherwise.\n\
|
|
With optional start, test S beginning at that position.\n\
|
|
With optional end, stop comparing S at that position.");
|
|
|
|
static PyObject *
|
|
unicode_startswith(PyUnicodeObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyUnicodeObject *substring;
|
|
int start = 0;
|
|
int end = INT_MAX;
|
|
PyObject *result;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|O&O&:startswith", &substring,
|
|
_PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
|
|
return NULL;
|
|
substring = (PyUnicodeObject *)PyUnicode_FromObject(
|
|
(PyObject *)substring);
|
|
if (substring == NULL)
|
|
return NULL;
|
|
|
|
result = PyBool_FromLong(tailmatch(self, substring, start, end, -1));
|
|
|
|
Py_DECREF(substring);
|
|
return result;
|
|
}
|
|
|
|
|
|
PyDoc_STRVAR(endswith__doc__,
|
|
"S.endswith(suffix[, start[, end]]) -> bool\n\
|
|
\n\
|
|
Return True if S ends with the specified suffix, False otherwise.\n\
|
|
With optional start, test S beginning at that position.\n\
|
|
With optional end, stop comparing S at that position.");
|
|
|
|
static PyObject *
|
|
unicode_endswith(PyUnicodeObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyUnicodeObject *substring;
|
|
int start = 0;
|
|
int end = INT_MAX;
|
|
PyObject *result;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|O&O&:endswith", &substring,
|
|
_PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
|
|
return NULL;
|
|
substring = (PyUnicodeObject *)PyUnicode_FromObject(
|
|
(PyObject *)substring);
|
|
if (substring == NULL)
|
|
return NULL;
|
|
|
|
result = PyBool_FromLong(tailmatch(self, substring, start, end, +1));
|
|
|
|
Py_DECREF(substring);
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
static PyObject *
|
|
unicode_getnewargs(PyUnicodeObject *v)
|
|
{
|
|
return Py_BuildValue("(u#)", v->str, v->length);
|
|
}
|
|
|
|
|
|
static PyMethodDef unicode_methods[] = {
|
|
|
|
/* Order is according to common usage: often used methods should
|
|
appear first, since lookup is done sequentially. */
|
|
|
|
{"encode", (PyCFunction) unicode_encode, METH_VARARGS, encode__doc__},
|
|
{"replace", (PyCFunction) unicode_replace, METH_VARARGS, replace__doc__},
|
|
{"split", (PyCFunction) unicode_split, METH_VARARGS, split__doc__},
|
|
{"rsplit", (PyCFunction) unicode_rsplit, METH_VARARGS, rsplit__doc__},
|
|
{"join", (PyCFunction) unicode_join, METH_O, join__doc__},
|
|
{"capitalize", (PyCFunction) unicode_capitalize, METH_NOARGS, capitalize__doc__},
|
|
{"title", (PyCFunction) unicode_title, METH_NOARGS, title__doc__},
|
|
{"center", (PyCFunction) unicode_center, METH_VARARGS, center__doc__},
|
|
{"count", (PyCFunction) unicode_count, METH_VARARGS, count__doc__},
|
|
{"expandtabs", (PyCFunction) unicode_expandtabs, METH_VARARGS, expandtabs__doc__},
|
|
{"find", (PyCFunction) unicode_find, METH_VARARGS, find__doc__},
|
|
{"index", (PyCFunction) unicode_index, METH_VARARGS, index__doc__},
|
|
{"ljust", (PyCFunction) unicode_ljust, METH_VARARGS, ljust__doc__},
|
|
{"lower", (PyCFunction) unicode_lower, METH_NOARGS, lower__doc__},
|
|
{"lstrip", (PyCFunction) unicode_lstrip, METH_VARARGS, lstrip__doc__},
|
|
{"decode", (PyCFunction) unicode_decode, METH_VARARGS, decode__doc__},
|
|
/* {"maketrans", (PyCFunction) unicode_maketrans, METH_VARARGS, maketrans__doc__}, */
|
|
{"rfind", (PyCFunction) unicode_rfind, METH_VARARGS, rfind__doc__},
|
|
{"rindex", (PyCFunction) unicode_rindex, METH_VARARGS, rindex__doc__},
|
|
{"rjust", (PyCFunction) unicode_rjust, METH_VARARGS, rjust__doc__},
|
|
{"rstrip", (PyCFunction) unicode_rstrip, METH_VARARGS, rstrip__doc__},
|
|
{"splitlines", (PyCFunction) unicode_splitlines, METH_VARARGS, splitlines__doc__},
|
|
{"strip", (PyCFunction) unicode_strip, METH_VARARGS, strip__doc__},
|
|
{"swapcase", (PyCFunction) unicode_swapcase, METH_NOARGS, swapcase__doc__},
|
|
{"translate", (PyCFunction) unicode_translate, METH_O, translate__doc__},
|
|
{"upper", (PyCFunction) unicode_upper, METH_NOARGS, upper__doc__},
|
|
{"startswith", (PyCFunction) unicode_startswith, METH_VARARGS, startswith__doc__},
|
|
{"endswith", (PyCFunction) unicode_endswith, METH_VARARGS, endswith__doc__},
|
|
{"islower", (PyCFunction) unicode_islower, METH_NOARGS, islower__doc__},
|
|
{"isupper", (PyCFunction) unicode_isupper, METH_NOARGS, isupper__doc__},
|
|
{"istitle", (PyCFunction) unicode_istitle, METH_NOARGS, istitle__doc__},
|
|
{"isspace", (PyCFunction) unicode_isspace, METH_NOARGS, isspace__doc__},
|
|
{"isdecimal", (PyCFunction) unicode_isdecimal, METH_NOARGS, isdecimal__doc__},
|
|
{"isdigit", (PyCFunction) unicode_isdigit, METH_NOARGS, isdigit__doc__},
|
|
{"isnumeric", (PyCFunction) unicode_isnumeric, METH_NOARGS, isnumeric__doc__},
|
|
{"isalpha", (PyCFunction) unicode_isalpha, METH_NOARGS, isalpha__doc__},
|
|
{"isalnum", (PyCFunction) unicode_isalnum, METH_NOARGS, isalnum__doc__},
|
|
{"iswide", (PyCFunction) unicode_iswide, METH_NOARGS, iswide__doc__},
|
|
{"width", (PyCFunction) unicode_width, METH_NOARGS, width__doc__},
|
|
{"zfill", (PyCFunction) unicode_zfill, METH_VARARGS, zfill__doc__},
|
|
#if 0
|
|
{"capwords", (PyCFunction) unicode_capwords, METH_NOARGS, capwords__doc__},
|
|
#endif
|
|
|
|
#if 0
|
|
/* This one is just used for debugging the implementation. */
|
|
{"freelistsize", (PyCFunction) unicode_freelistsize, METH_NOARGS},
|
|
#endif
|
|
|
|
{"__getnewargs__", (PyCFunction)unicode_getnewargs, METH_NOARGS},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
static PyObject *
|
|
unicode_mod(PyObject *v, PyObject *w)
|
|
{
|
|
if (!PyUnicode_Check(v)) {
|
|
Py_INCREF(Py_NotImplemented);
|
|
return Py_NotImplemented;
|
|
}
|
|
return PyUnicode_Format(v, w);
|
|
}
|
|
|
|
static PyNumberMethods unicode_as_number = {
|
|
0, /*nb_add*/
|
|
0, /*nb_subtract*/
|
|
0, /*nb_multiply*/
|
|
0, /*nb_divide*/
|
|
unicode_mod, /*nb_remainder*/
|
|
};
|
|
|
|
static PySequenceMethods unicode_as_sequence = {
|
|
(inquiry) unicode_length, /* sq_length */
|
|
(binaryfunc) PyUnicode_Concat, /* sq_concat */
|
|
(intargfunc) unicode_repeat, /* sq_repeat */
|
|
(intargfunc) unicode_getitem, /* sq_item */
|
|
(intintargfunc) unicode_slice, /* sq_slice */
|
|
0, /* sq_ass_item */
|
|
0, /* sq_ass_slice */
|
|
(objobjproc)PyUnicode_Contains, /*sq_contains*/
|
|
};
|
|
|
|
static PyObject*
|
|
unicode_subscript(PyUnicodeObject* self, PyObject* item)
|
|
{
|
|
if (PyInt_Check(item)) {
|
|
long i = PyInt_AS_LONG(item);
|
|
if (i < 0)
|
|
i += PyString_GET_SIZE(self);
|
|
return unicode_getitem(self, i);
|
|
} else if (PyLong_Check(item)) {
|
|
long i = PyLong_AsLong(item);
|
|
if (i == -1 && PyErr_Occurred())
|
|
return NULL;
|
|
if (i < 0)
|
|
i += PyString_GET_SIZE(self);
|
|
return unicode_getitem(self, i);
|
|
} else if (PySlice_Check(item)) {
|
|
int start, stop, step, slicelength, cur, i;
|
|
Py_UNICODE* source_buf;
|
|
Py_UNICODE* result_buf;
|
|
PyObject* result;
|
|
|
|
if (PySlice_GetIndicesEx((PySliceObject*)item, PyString_GET_SIZE(self),
|
|
&start, &stop, &step, &slicelength) < 0) {
|
|
return NULL;
|
|
}
|
|
|
|
if (slicelength <= 0) {
|
|
return PyUnicode_FromUnicode(NULL, 0);
|
|
} else {
|
|
source_buf = PyUnicode_AS_UNICODE((PyObject*)self);
|
|
result_buf = PyMem_MALLOC(slicelength*sizeof(Py_UNICODE));
|
|
|
|
for (cur = start, i = 0; i < slicelength; cur += step, i++) {
|
|
result_buf[i] = source_buf[cur];
|
|
}
|
|
|
|
result = PyUnicode_FromUnicode(result_buf, slicelength);
|
|
PyMem_FREE(result_buf);
|
|
return result;
|
|
}
|
|
} else {
|
|
PyErr_SetString(PyExc_TypeError, "string indices must be integers");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static PyMappingMethods unicode_as_mapping = {
|
|
(inquiry)unicode_length, /* mp_length */
|
|
(binaryfunc)unicode_subscript, /* mp_subscript */
|
|
(objobjargproc)0, /* mp_ass_subscript */
|
|
};
|
|
|
|
static int
|
|
unicode_buffer_getreadbuf(PyUnicodeObject *self,
|
|
int index,
|
|
const void **ptr)
|
|
{
|
|
if (index != 0) {
|
|
PyErr_SetString(PyExc_SystemError,
|
|
"accessing non-existent unicode segment");
|
|
return -1;
|
|
}
|
|
*ptr = (void *) self->str;
|
|
return PyUnicode_GET_DATA_SIZE(self);
|
|
}
|
|
|
|
static int
|
|
unicode_buffer_getwritebuf(PyUnicodeObject *self, int index,
|
|
const void **ptr)
|
|
{
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"cannot use unicode as modifiable buffer");
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
unicode_buffer_getsegcount(PyUnicodeObject *self,
|
|
int *lenp)
|
|
{
|
|
if (lenp)
|
|
*lenp = PyUnicode_GET_DATA_SIZE(self);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
unicode_buffer_getcharbuf(PyUnicodeObject *self,
|
|
int index,
|
|
const void **ptr)
|
|
{
|
|
PyObject *str;
|
|
|
|
if (index != 0) {
|
|
PyErr_SetString(PyExc_SystemError,
|
|
"accessing non-existent unicode segment");
|
|
return -1;
|
|
}
|
|
str = _PyUnicode_AsDefaultEncodedString((PyObject *)self, NULL);
|
|
if (str == NULL)
|
|
return -1;
|
|
*ptr = (void *) PyString_AS_STRING(str);
|
|
return PyString_GET_SIZE(str);
|
|
}
|
|
|
|
/* Helpers for PyUnicode_Format() */
|
|
|
|
static PyObject *
|
|
getnextarg(PyObject *args, int arglen, int *p_argidx)
|
|
{
|
|
int argidx = *p_argidx;
|
|
if (argidx < arglen) {
|
|
(*p_argidx)++;
|
|
if (arglen < 0)
|
|
return args;
|
|
else
|
|
return PyTuple_GetItem(args, argidx);
|
|
}
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"not enough arguments for format string");
|
|
return NULL;
|
|
}
|
|
|
|
#define F_LJUST (1<<0)
|
|
#define F_SIGN (1<<1)
|
|
#define F_BLANK (1<<2)
|
|
#define F_ALT (1<<3)
|
|
#define F_ZERO (1<<4)
|
|
|
|
static
|
|
int usprintf(register Py_UNICODE *buffer, char *format, ...)
|
|
{
|
|
register int i;
|
|
int len;
|
|
va_list va;
|
|
char *charbuffer;
|
|
va_start(va, format);
|
|
|
|
/* First, format the string as char array, then expand to Py_UNICODE
|
|
array. */
|
|
charbuffer = (char *)buffer;
|
|
len = vsprintf(charbuffer, format, va);
|
|
for (i = len - 1; i >= 0; i--)
|
|
buffer[i] = (Py_UNICODE) charbuffer[i];
|
|
|
|
va_end(va);
|
|
return len;
|
|
}
|
|
|
|
/* XXX To save some code duplication, formatfloat/long/int could have been
|
|
shared with stringobject.c, converting from 8-bit to Unicode after the
|
|
formatting is done. */
|
|
|
|
static int
|
|
formatfloat(Py_UNICODE *buf,
|
|
size_t buflen,
|
|
int flags,
|
|
int prec,
|
|
int type,
|
|
PyObject *v)
|
|
{
|
|
/* fmt = '%#.' + `prec` + `type`
|
|
worst case length = 3 + 10 (len of INT_MAX) + 1 = 14 (use 20)*/
|
|
char fmt[20];
|
|
double x;
|
|
|
|
x = PyFloat_AsDouble(v);
|
|
if (x == -1.0 && PyErr_Occurred())
|
|
return -1;
|
|
if (prec < 0)
|
|
prec = 6;
|
|
if (type == 'f' && (fabs(x) / 1e25) >= 1e25)
|
|
type = 'g';
|
|
/* Worst case length calc to ensure no buffer overrun:
|
|
|
|
'g' formats:
|
|
fmt = %#.<prec>g
|
|
buf = '-' + [0-9]*prec + '.' + 'e+' + (longest exp
|
|
for any double rep.)
|
|
len = 1 + prec + 1 + 2 + 5 = 9 + prec
|
|
|
|
'f' formats:
|
|
buf = '-' + [0-9]*x + '.' + [0-9]*prec (with x < 50)
|
|
len = 1 + 50 + 1 + prec = 52 + prec
|
|
|
|
If prec=0 the effective precision is 1 (the leading digit is
|
|
always given), therefore increase the length by one.
|
|
|
|
*/
|
|
if ((type == 'g' && buflen <= (size_t)10 + (size_t)prec) ||
|
|
(type == 'f' && buflen <= (size_t)53 + (size_t)prec)) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"formatted float is too long (precision too large?)");
|
|
return -1;
|
|
}
|
|
PyOS_snprintf(fmt, sizeof(fmt), "%%%s.%d%c",
|
|
(flags&F_ALT) ? "#" : "",
|
|
prec, type);
|
|
return usprintf(buf, fmt, x);
|
|
}
|
|
|
|
static PyObject*
|
|
formatlong(PyObject *val, int flags, int prec, int type)
|
|
{
|
|
char *buf;
|
|
int i, len;
|
|
PyObject *str; /* temporary string object. */
|
|
PyUnicodeObject *result;
|
|
|
|
str = _PyString_FormatLong(val, flags, prec, type, &buf, &len);
|
|
if (!str)
|
|
return NULL;
|
|
result = _PyUnicode_New(len);
|
|
for (i = 0; i < len; i++)
|
|
result->str[i] = buf[i];
|
|
result->str[len] = 0;
|
|
Py_DECREF(str);
|
|
return (PyObject*)result;
|
|
}
|
|
|
|
static int
|
|
formatint(Py_UNICODE *buf,
|
|
size_t buflen,
|
|
int flags,
|
|
int prec,
|
|
int type,
|
|
PyObject *v)
|
|
{
|
|
/* fmt = '%#.' + `prec` + 'l' + `type`
|
|
* worst case length = 3 + 19 (worst len of INT_MAX on 64-bit machine)
|
|
* + 1 + 1
|
|
* = 24
|
|
*/
|
|
char fmt[64]; /* plenty big enough! */
|
|
char *sign;
|
|
long x;
|
|
|
|
x = PyInt_AsLong(v);
|
|
if (x == -1 && PyErr_Occurred())
|
|
return -1;
|
|
if (x < 0 && type == 'u') {
|
|
type = 'd';
|
|
}
|
|
if (x < 0 && (type == 'x' || type == 'X' || type == 'o'))
|
|
sign = "-";
|
|
else
|
|
sign = "";
|
|
if (prec < 0)
|
|
prec = 1;
|
|
|
|
/* buf = '+'/'-'/'' + '0'/'0x'/'' + '[0-9]'*max(prec, len(x in octal))
|
|
* worst case buf = '-0x' + [0-9]*prec, where prec >= 11
|
|
*/
|
|
if (buflen <= 14 || buflen <= (size_t)3 + (size_t)prec) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"formatted integer is too long (precision too large?)");
|
|
return -1;
|
|
}
|
|
|
|
if ((flags & F_ALT) &&
|
|
(type == 'x' || type == 'X')) {
|
|
/* When converting under %#x or %#X, there are a number
|
|
* of issues that cause pain:
|
|
* - when 0 is being converted, the C standard leaves off
|
|
* the '0x' or '0X', which is inconsistent with other
|
|
* %#x/%#X conversions and inconsistent with Python's
|
|
* hex() function
|
|
* - there are platforms that violate the standard and
|
|
* convert 0 with the '0x' or '0X'
|
|
* (Metrowerks, Compaq Tru64)
|
|
* - there are platforms that give '0x' when converting
|
|
* under %#X, but convert 0 in accordance with the
|
|
* standard (OS/2 EMX)
|
|
*
|
|
* We can achieve the desired consistency by inserting our
|
|
* own '0x' or '0X' prefix, and substituting %x/%X in place
|
|
* of %#x/%#X.
|
|
*
|
|
* Note that this is the same approach as used in
|
|
* formatint() in stringobject.c
|
|
*/
|
|
PyOS_snprintf(fmt, sizeof(fmt), "%s0%c%%.%dl%c",
|
|
sign, type, prec, type);
|
|
}
|
|
else {
|
|
PyOS_snprintf(fmt, sizeof(fmt), "%s%%%s.%dl%c",
|
|
sign, (flags&F_ALT) ? "#" : "",
|
|
prec, type);
|
|
}
|
|
if (sign[0])
|
|
return usprintf(buf, fmt, -x);
|
|
else
|
|
return usprintf(buf, fmt, x);
|
|
}
|
|
|
|
static int
|
|
formatchar(Py_UNICODE *buf,
|
|
size_t buflen,
|
|
PyObject *v)
|
|
{
|
|
/* presume that the buffer is at least 2 characters long */
|
|
if (PyUnicode_Check(v)) {
|
|
if (PyUnicode_GET_SIZE(v) != 1)
|
|
goto onError;
|
|
buf[0] = PyUnicode_AS_UNICODE(v)[0];
|
|
}
|
|
|
|
else if (PyString_Check(v)) {
|
|
if (PyString_GET_SIZE(v) != 1)
|
|
goto onError;
|
|
buf[0] = (Py_UNICODE)PyString_AS_STRING(v)[0];
|
|
}
|
|
|
|
else {
|
|
/* Integer input truncated to a character */
|
|
long x;
|
|
x = PyInt_AsLong(v);
|
|
if (x == -1 && PyErr_Occurred())
|
|
goto onError;
|
|
#ifdef Py_UNICODE_WIDE
|
|
if (x < 0 || x > 0x10ffff) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"%c arg not in range(0x110000) "
|
|
"(wide Python build)");
|
|
return -1;
|
|
}
|
|
#else
|
|
if (x < 0 || x > 0xffff) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"%c arg not in range(0x10000) "
|
|
"(narrow Python build)");
|
|
return -1;
|
|
}
|
|
#endif
|
|
buf[0] = (Py_UNICODE) x;
|
|
}
|
|
buf[1] = '\0';
|
|
return 1;
|
|
|
|
onError:
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"%c requires int or char");
|
|
return -1;
|
|
}
|
|
|
|
/* fmt%(v1,v2,...) is roughly equivalent to sprintf(fmt, v1, v2, ...)
|
|
|
|
FORMATBUFLEN is the length of the buffer in which the floats, ints, &
|
|
chars are formatted. XXX This is a magic number. Each formatting
|
|
routine does bounds checking to ensure no overflow, but a better
|
|
solution may be to malloc a buffer of appropriate size for each
|
|
format. For now, the current solution is sufficient.
|
|
*/
|
|
#define FORMATBUFLEN (size_t)120
|
|
|
|
PyObject *PyUnicode_Format(PyObject *format,
|
|
PyObject *args)
|
|
{
|
|
Py_UNICODE *fmt, *res;
|
|
int fmtcnt, rescnt, reslen, arglen, argidx;
|
|
int args_owned = 0;
|
|
PyUnicodeObject *result = NULL;
|
|
PyObject *dict = NULL;
|
|
PyObject *uformat;
|
|
|
|
if (format == NULL || args == NULL) {
|
|
PyErr_BadInternalCall();
|
|
return NULL;
|
|
}
|
|
uformat = PyUnicode_FromObject(format);
|
|
if (uformat == NULL)
|
|
return NULL;
|
|
fmt = PyUnicode_AS_UNICODE(uformat);
|
|
fmtcnt = PyUnicode_GET_SIZE(uformat);
|
|
|
|
reslen = rescnt = fmtcnt + 100;
|
|
result = _PyUnicode_New(reslen);
|
|
if (result == NULL)
|
|
goto onError;
|
|
res = PyUnicode_AS_UNICODE(result);
|
|
|
|
if (PyTuple_Check(args)) {
|
|
arglen = PyTuple_Size(args);
|
|
argidx = 0;
|
|
}
|
|
else {
|
|
arglen = -1;
|
|
argidx = -2;
|
|
}
|
|
if (args->ob_type->tp_as_mapping && !PyTuple_Check(args) &&
|
|
!PyObject_TypeCheck(args, &PyBaseString_Type))
|
|
dict = args;
|
|
|
|
while (--fmtcnt >= 0) {
|
|
if (*fmt != '%') {
|
|
if (--rescnt < 0) {
|
|
rescnt = fmtcnt + 100;
|
|
reslen += rescnt;
|
|
if (_PyUnicode_Resize(&result, reslen) < 0)
|
|
return NULL;
|
|
res = PyUnicode_AS_UNICODE(result) + reslen - rescnt;
|
|
--rescnt;
|
|
}
|
|
*res++ = *fmt++;
|
|
}
|
|
else {
|
|
/* Got a format specifier */
|
|
int flags = 0;
|
|
int width = -1;
|
|
int prec = -1;
|
|
Py_UNICODE c = '\0';
|
|
Py_UNICODE fill;
|
|
PyObject *v = NULL;
|
|
PyObject *temp = NULL;
|
|
Py_UNICODE *pbuf;
|
|
Py_UNICODE sign;
|
|
int len;
|
|
Py_UNICODE formatbuf[FORMATBUFLEN]; /* For format{float,int,char}() */
|
|
|
|
fmt++;
|
|
if (*fmt == '(') {
|
|
Py_UNICODE *keystart;
|
|
int keylen;
|
|
PyObject *key;
|
|
int pcount = 1;
|
|
|
|
if (dict == NULL) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"format requires a mapping");
|
|
goto onError;
|
|
}
|
|
++fmt;
|
|
--fmtcnt;
|
|
keystart = fmt;
|
|
/* Skip over balanced parentheses */
|
|
while (pcount > 0 && --fmtcnt >= 0) {
|
|
if (*fmt == ')')
|
|
--pcount;
|
|
else if (*fmt == '(')
|
|
++pcount;
|
|
fmt++;
|
|
}
|
|
keylen = fmt - keystart - 1;
|
|
if (fmtcnt < 0 || pcount > 0) {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"incomplete format key");
|
|
goto onError;
|
|
}
|
|
#if 0
|
|
/* keys are converted to strings using UTF-8 and
|
|
then looked up since Python uses strings to hold
|
|
variables names etc. in its namespaces and we
|
|
wouldn't want to break common idioms. */
|
|
key = PyUnicode_EncodeUTF8(keystart,
|
|
keylen,
|
|
NULL);
|
|
#else
|
|
key = PyUnicode_FromUnicode(keystart, keylen);
|
|
#endif
|
|
if (key == NULL)
|
|
goto onError;
|
|
if (args_owned) {
|
|
Py_DECREF(args);
|
|
args_owned = 0;
|
|
}
|
|
args = PyObject_GetItem(dict, key);
|
|
Py_DECREF(key);
|
|
if (args == NULL) {
|
|
goto onError;
|
|
}
|
|
args_owned = 1;
|
|
arglen = -1;
|
|
argidx = -2;
|
|
}
|
|
while (--fmtcnt >= 0) {
|
|
switch (c = *fmt++) {
|
|
case '-': flags |= F_LJUST; continue;
|
|
case '+': flags |= F_SIGN; continue;
|
|
case ' ': flags |= F_BLANK; continue;
|
|
case '#': flags |= F_ALT; continue;
|
|
case '0': flags |= F_ZERO; continue;
|
|
}
|
|
break;
|
|
}
|
|
if (c == '*') {
|
|
v = getnextarg(args, arglen, &argidx);
|
|
if (v == NULL)
|
|
goto onError;
|
|
if (!PyInt_Check(v)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"* wants int");
|
|
goto onError;
|
|
}
|
|
width = PyInt_AsLong(v);
|
|
if (width < 0) {
|
|
flags |= F_LJUST;
|
|
width = -width;
|
|
}
|
|
if (--fmtcnt >= 0)
|
|
c = *fmt++;
|
|
}
|
|
else if (c >= '0' && c <= '9') {
|
|
width = c - '0';
|
|
while (--fmtcnt >= 0) {
|
|
c = *fmt++;
|
|
if (c < '0' || c > '9')
|
|
break;
|
|
if ((width*10) / 10 != width) {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"width too big");
|
|
goto onError;
|
|
}
|
|
width = width*10 + (c - '0');
|
|
}
|
|
}
|
|
if (c == '.') {
|
|
prec = 0;
|
|
if (--fmtcnt >= 0)
|
|
c = *fmt++;
|
|
if (c == '*') {
|
|
v = getnextarg(args, arglen, &argidx);
|
|
if (v == NULL)
|
|
goto onError;
|
|
if (!PyInt_Check(v)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"* wants int");
|
|
goto onError;
|
|
}
|
|
prec = PyInt_AsLong(v);
|
|
if (prec < 0)
|
|
prec = 0;
|
|
if (--fmtcnt >= 0)
|
|
c = *fmt++;
|
|
}
|
|
else if (c >= '0' && c <= '9') {
|
|
prec = c - '0';
|
|
while (--fmtcnt >= 0) {
|
|
c = Py_CHARMASK(*fmt++);
|
|
if (c < '0' || c > '9')
|
|
break;
|
|
if ((prec*10) / 10 != prec) {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"prec too big");
|
|
goto onError;
|
|
}
|
|
prec = prec*10 + (c - '0');
|
|
}
|
|
}
|
|
} /* prec */
|
|
if (fmtcnt >= 0) {
|
|
if (c == 'h' || c == 'l' || c == 'L') {
|
|
if (--fmtcnt >= 0)
|
|
c = *fmt++;
|
|
}
|
|
}
|
|
if (fmtcnt < 0) {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"incomplete format");
|
|
goto onError;
|
|
}
|
|
if (c != '%') {
|
|
v = getnextarg(args, arglen, &argidx);
|
|
if (v == NULL)
|
|
goto onError;
|
|
}
|
|
sign = 0;
|
|
fill = ' ';
|
|
switch (c) {
|
|
|
|
case '%':
|
|
pbuf = formatbuf;
|
|
/* presume that buffer length is at least 1 */
|
|
pbuf[0] = '%';
|
|
len = 1;
|
|
break;
|
|
|
|
case 's':
|
|
case 'r':
|
|
if (PyUnicode_Check(v) && c == 's') {
|
|
temp = v;
|
|
Py_INCREF(temp);
|
|
}
|
|
else {
|
|
PyObject *unicode;
|
|
if (c == 's')
|
|
temp = PyObject_Str(v);
|
|
else
|
|
temp = PyObject_Repr(v);
|
|
if (temp == NULL)
|
|
goto onError;
|
|
if (!PyString_Check(temp)) {
|
|
/* XXX Note: this should never happen, since
|
|
PyObject_Repr() and PyObject_Str() assure
|
|
this */
|
|
Py_DECREF(temp);
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"%s argument has non-string str()");
|
|
goto onError;
|
|
}
|
|
unicode = PyUnicode_Decode(PyString_AS_STRING(temp),
|
|
PyString_GET_SIZE(temp),
|
|
NULL,
|
|
"strict");
|
|
Py_DECREF(temp);
|
|
temp = unicode;
|
|
if (temp == NULL)
|
|
goto onError;
|
|
}
|
|
pbuf = PyUnicode_AS_UNICODE(temp);
|
|
len = PyUnicode_GET_SIZE(temp);
|
|
if (prec >= 0 && len > prec)
|
|
len = prec;
|
|
break;
|
|
|
|
case 'i':
|
|
case 'd':
|
|
case 'u':
|
|
case 'o':
|
|
case 'x':
|
|
case 'X':
|
|
if (c == 'i')
|
|
c = 'd';
|
|
if (PyLong_Check(v)) {
|
|
temp = formatlong(v, flags, prec, c);
|
|
if (!temp)
|
|
goto onError;
|
|
pbuf = PyUnicode_AS_UNICODE(temp);
|
|
len = PyUnicode_GET_SIZE(temp);
|
|
sign = 1;
|
|
}
|
|
else {
|
|
pbuf = formatbuf;
|
|
len = formatint(pbuf, sizeof(formatbuf)/sizeof(Py_UNICODE),
|
|
flags, prec, c, v);
|
|
if (len < 0)
|
|
goto onError;
|
|
sign = 1;
|
|
}
|
|
if (flags & F_ZERO)
|
|
fill = '0';
|
|
break;
|
|
|
|
case 'e':
|
|
case 'E':
|
|
case 'f':
|
|
case 'F':
|
|
case 'g':
|
|
case 'G':
|
|
if (c == 'F')
|
|
c = 'f';
|
|
pbuf = formatbuf;
|
|
len = formatfloat(pbuf, sizeof(formatbuf)/sizeof(Py_UNICODE),
|
|
flags, prec, c, v);
|
|
if (len < 0)
|
|
goto onError;
|
|
sign = 1;
|
|
if (flags & F_ZERO)
|
|
fill = '0';
|
|
break;
|
|
|
|
case 'c':
|
|
pbuf = formatbuf;
|
|
len = formatchar(pbuf, sizeof(formatbuf)/sizeof(Py_UNICODE), v);
|
|
if (len < 0)
|
|
goto onError;
|
|
break;
|
|
|
|
default:
|
|
PyErr_Format(PyExc_ValueError,
|
|
"unsupported format character '%c' (0x%x) "
|
|
"at index %i",
|
|
(31<=c && c<=126) ? (char)c : '?',
|
|
(int)c,
|
|
(int)(fmt -1 - PyUnicode_AS_UNICODE(uformat)));
|
|
goto onError;
|
|
}
|
|
if (sign) {
|
|
if (*pbuf == '-' || *pbuf == '+') {
|
|
sign = *pbuf++;
|
|
len--;
|
|
}
|
|
else if (flags & F_SIGN)
|
|
sign = '+';
|
|
else if (flags & F_BLANK)
|
|
sign = ' ';
|
|
else
|
|
sign = 0;
|
|
}
|
|
if (width < len)
|
|
width = len;
|
|
if (rescnt - (sign != 0) < width) {
|
|
reslen -= rescnt;
|
|
rescnt = width + fmtcnt + 100;
|
|
reslen += rescnt;
|
|
if (reslen < 0) {
|
|
Py_DECREF(result);
|
|
return PyErr_NoMemory();
|
|
}
|
|
if (_PyUnicode_Resize(&result, reslen) < 0)
|
|
return NULL;
|
|
res = PyUnicode_AS_UNICODE(result)
|
|
+ reslen - rescnt;
|
|
}
|
|
if (sign) {
|
|
if (fill != ' ')
|
|
*res++ = sign;
|
|
rescnt--;
|
|
if (width > len)
|
|
width--;
|
|
}
|
|
if ((flags & F_ALT) && (c == 'x' || c == 'X')) {
|
|
assert(pbuf[0] == '0');
|
|
assert(pbuf[1] == c);
|
|
if (fill != ' ') {
|
|
*res++ = *pbuf++;
|
|
*res++ = *pbuf++;
|
|
}
|
|
rescnt -= 2;
|
|
width -= 2;
|
|
if (width < 0)
|
|
width = 0;
|
|
len -= 2;
|
|
}
|
|
if (width > len && !(flags & F_LJUST)) {
|
|
do {
|
|
--rescnt;
|
|
*res++ = fill;
|
|
} while (--width > len);
|
|
}
|
|
if (fill == ' ') {
|
|
if (sign)
|
|
*res++ = sign;
|
|
if ((flags & F_ALT) && (c == 'x' || c == 'X')) {
|
|
assert(pbuf[0] == '0');
|
|
assert(pbuf[1] == c);
|
|
*res++ = *pbuf++;
|
|
*res++ = *pbuf++;
|
|
}
|
|
}
|
|
Py_UNICODE_COPY(res, pbuf, len);
|
|
res += len;
|
|
rescnt -= len;
|
|
while (--width >= len) {
|
|
--rescnt;
|
|
*res++ = ' ';
|
|
}
|
|
if (dict && (argidx < arglen) && c != '%') {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"not all arguments converted during string formatting");
|
|
goto onError;
|
|
}
|
|
Py_XDECREF(temp);
|
|
} /* '%' */
|
|
} /* until end */
|
|
if (argidx < arglen && !dict) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"not all arguments converted during string formatting");
|
|
goto onError;
|
|
}
|
|
|
|
if (args_owned) {
|
|
Py_DECREF(args);
|
|
}
|
|
Py_DECREF(uformat);
|
|
if (_PyUnicode_Resize(&result, reslen - rescnt) < 0)
|
|
goto onError;
|
|
return (PyObject *)result;
|
|
|
|
onError:
|
|
Py_XDECREF(result);
|
|
Py_DECREF(uformat);
|
|
if (args_owned) {
|
|
Py_DECREF(args);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static PyBufferProcs unicode_as_buffer = {
|
|
(getreadbufferproc) unicode_buffer_getreadbuf,
|
|
(getwritebufferproc) unicode_buffer_getwritebuf,
|
|
(getsegcountproc) unicode_buffer_getsegcount,
|
|
(getcharbufferproc) unicode_buffer_getcharbuf,
|
|
};
|
|
|
|
static PyObject *
|
|
unicode_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds);
|
|
|
|
static PyObject *
|
|
unicode_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
|
|
{
|
|
PyObject *x = NULL;
|
|
static char *kwlist[] = {"string", "encoding", "errors", 0};
|
|
char *encoding = NULL;
|
|
char *errors = NULL;
|
|
|
|
if (type != &PyUnicode_Type)
|
|
return unicode_subtype_new(type, args, kwds);
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwds, "|Oss:unicode",
|
|
kwlist, &x, &encoding, &errors))
|
|
return NULL;
|
|
if (x == NULL)
|
|
return (PyObject *)_PyUnicode_New(0);
|
|
if (encoding == NULL && errors == NULL)
|
|
return PyObject_Unicode(x);
|
|
else
|
|
return PyUnicode_FromEncodedObject(x, encoding, errors);
|
|
}
|
|
|
|
static PyObject *
|
|
unicode_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
|
|
{
|
|
PyUnicodeObject *tmp, *pnew;
|
|
int n;
|
|
|
|
assert(PyType_IsSubtype(type, &PyUnicode_Type));
|
|
tmp = (PyUnicodeObject *)unicode_new(&PyUnicode_Type, args, kwds);
|
|
if (tmp == NULL)
|
|
return NULL;
|
|
assert(PyUnicode_Check(tmp));
|
|
pnew = (PyUnicodeObject *) type->tp_alloc(type, n = tmp->length);
|
|
if (pnew == NULL) {
|
|
Py_DECREF(tmp);
|
|
return NULL;
|
|
}
|
|
pnew->str = PyMem_NEW(Py_UNICODE, n+1);
|
|
if (pnew->str == NULL) {
|
|
_Py_ForgetReference((PyObject *)pnew);
|
|
PyObject_Del(pnew);
|
|
Py_DECREF(tmp);
|
|
return PyErr_NoMemory();
|
|
}
|
|
Py_UNICODE_COPY(pnew->str, tmp->str, n+1);
|
|
pnew->length = n;
|
|
pnew->hash = tmp->hash;
|
|
Py_DECREF(tmp);
|
|
return (PyObject *)pnew;
|
|
}
|
|
|
|
PyDoc_STRVAR(unicode_doc,
|
|
"unicode(string [, encoding[, errors]]) -> object\n\
|
|
\n\
|
|
Create a new Unicode object from the given encoded string.\n\
|
|
encoding defaults to the current default string encoding.\n\
|
|
errors can be 'strict', 'replace' or 'ignore' and defaults to 'strict'.");
|
|
|
|
PyTypeObject PyUnicode_Type = {
|
|
PyObject_HEAD_INIT(&PyType_Type)
|
|
0, /* ob_size */
|
|
"unicode", /* tp_name */
|
|
sizeof(PyUnicodeObject), /* tp_size */
|
|
0, /* tp_itemsize */
|
|
/* Slots */
|
|
(destructor)unicode_dealloc, /* tp_dealloc */
|
|
0, /* tp_print */
|
|
0, /* tp_getattr */
|
|
0, /* tp_setattr */
|
|
(cmpfunc) unicode_compare, /* tp_compare */
|
|
(reprfunc) unicode_repr, /* tp_repr */
|
|
&unicode_as_number, /* tp_as_number */
|
|
&unicode_as_sequence, /* tp_as_sequence */
|
|
&unicode_as_mapping, /* tp_as_mapping */
|
|
(hashfunc) unicode_hash, /* tp_hash*/
|
|
0, /* tp_call*/
|
|
(reprfunc) unicode_str, /* tp_str */
|
|
PyObject_GenericGetAttr, /* tp_getattro */
|
|
0, /* tp_setattro */
|
|
&unicode_as_buffer, /* tp_as_buffer */
|
|
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_CHECKTYPES |
|
|
Py_TPFLAGS_BASETYPE, /* tp_flags */
|
|
unicode_doc, /* tp_doc */
|
|
0, /* tp_traverse */
|
|
0, /* tp_clear */
|
|
0, /* tp_richcompare */
|
|
0, /* tp_weaklistoffset */
|
|
0, /* tp_iter */
|
|
0, /* tp_iternext */
|
|
unicode_methods, /* tp_methods */
|
|
0, /* tp_members */
|
|
0, /* tp_getset */
|
|
&PyBaseString_Type, /* tp_base */
|
|
0, /* tp_dict */
|
|
0, /* tp_descr_get */
|
|
0, /* tp_descr_set */
|
|
0, /* tp_dictoffset */
|
|
0, /* tp_init */
|
|
0, /* tp_alloc */
|
|
unicode_new, /* tp_new */
|
|
PyObject_Del, /* tp_free */
|
|
};
|
|
|
|
/* Initialize the Unicode implementation */
|
|
|
|
void _PyUnicode_Init(void)
|
|
{
|
|
int i;
|
|
|
|
/* Init the implementation */
|
|
unicode_freelist = NULL;
|
|
unicode_freelist_size = 0;
|
|
unicode_empty = _PyUnicode_New(0);
|
|
strcpy(unicode_default_encoding, "ascii");
|
|
for (i = 0; i < 256; i++)
|
|
unicode_latin1[i] = NULL;
|
|
if (PyType_Ready(&PyUnicode_Type) < 0)
|
|
Py_FatalError("Can't initialize 'unicode'");
|
|
}
|
|
|
|
/* Finalize the Unicode implementation */
|
|
|
|
void
|
|
_PyUnicode_Fini(void)
|
|
{
|
|
PyUnicodeObject *u;
|
|
int i;
|
|
|
|
Py_XDECREF(unicode_empty);
|
|
unicode_empty = NULL;
|
|
|
|
for (i = 0; i < 256; i++) {
|
|
if (unicode_latin1[i]) {
|
|
Py_DECREF(unicode_latin1[i]);
|
|
unicode_latin1[i] = NULL;
|
|
}
|
|
}
|
|
|
|
for (u = unicode_freelist; u != NULL;) {
|
|
PyUnicodeObject *v = u;
|
|
u = *(PyUnicodeObject **)u;
|
|
if (v->str)
|
|
PyMem_DEL(v->str);
|
|
Py_XDECREF(v->defenc);
|
|
PyObject_Del(v);
|
|
}
|
|
unicode_freelist = NULL;
|
|
unicode_freelist_size = 0;
|
|
}
|
|
|
|
/*
|
|
Local variables:
|
|
c-basic-offset: 4
|
|
indent-tabs-mode: nil
|
|
End:
|
|
*/
|