mirror of
https://github.com/python/cpython.git
synced 2024-12-16 05:14:41 +08:00
194da4a7da
svn+ssh://svn.python.org/python/branches/py3k
................
r74126 | alexandre.vassalotti | 2009-07-21 02:39:03 +0200 (Di, 21 Jul 2009) | 14 lines
Merged revisions 73871 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r73871 | alexandre.vassalotti | 2009-07-06 22:17:30 -0400 (Mon, 06 Jul 2009) | 7 lines
Grow the allocated buffer in PyUnicode_EncodeUTF7 to avoid buffer overrun.
Without this change, test_unicode.UnicodeTest.test_codecs_utf7 crashes in
debug mode. What happens is the unicode string u'\U000abcde' with a length
of 1 encodes to the string '+2m/c3g-' of length 8. Since only 5 bytes is
reserved in the buffer, a buffer overrun occurs.
........
................
r74130 | alexandre.vassalotti | 2009-07-21 02:57:50 +0200 (Di, 21 Jul 2009) | 2 lines
Add ignore rule for the Doc/tools/jinga2/ directory.
................
r74131 | alexandre.vassalotti | 2009-07-21 04:51:58 +0200 (Di, 21 Jul 2009) | 13 lines
Merged revisions 73683,73786 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r73683 | georg.brandl | 2009-06-29 10:44:49 -0400 (Mon, 29 Jun 2009) | 1 line
Fix error handling in PyCode_Optimize, by Alexander Schremmer at EuroPython sprint.
........
r73786 | benjamin.peterson | 2009-07-02 18:56:16 -0400 (Thu, 02 Jul 2009) | 1 line
condense with assertRaises
........
................
r74149 | ezio.melotti | 2009-07-21 22:37:52 +0200 (Di, 21 Jul 2009) | 9 lines
Merged revisions 74148 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r74148 | ezio.melotti | 2009-07-21 23:18:27 +0300 (Tue, 21 Jul 2009) | 1 line
#6536 fixed typo
........
................
r74155 | alexandre.vassalotti | 2009-07-22 04:24:49 +0200 (Mi, 22 Jul 2009) | 2 lines
Issue #6242: Fix deallocator of io.StringIO and io.BytesIO.
................
r74157 | alexandre.vassalotti | 2009-07-22 05:07:33 +0200 (Mi, 22 Jul 2009) | 2 lines
Issue #6241: Better type checking for the arguments of io.StringIO.
................
r74180 | ezio.melotti | 2009-07-22 23:17:14 +0200 (Mi, 22 Jul 2009) | 9 lines
Merged revisions 74179 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r74179 | ezio.melotti | 2009-07-23 00:08:49 +0300 (Thu, 23 Jul 2009) | 1 line
#6423 has_key -> in
........
................
r74181 | alexandre.vassalotti | 2009-07-22 23:27:53 +0200 (Mi, 22 Jul 2009) | 6 lines
Clean up test_curses.
By using __stdout__ directly, test_curses caused regrtest.py
to duplicate the output of some test results.
................
r74182 | alexandre.vassalotti | 2009-07-22 23:29:01 +0200 (Mi, 22 Jul 2009) | 2 lines
Use assertGreater instead of assertTrue(x > y).
................
r74183 | alexandre.vassalotti | 2009-07-23 01:27:17 +0200 (Do, 23 Jul 2009) | 4 lines
Specialize assertTrue checks when possible.
We should get slightly more helpful failure messages with this change.
................
r74398 | georg.brandl | 2009-08-13 11:16:39 +0200 (Do, 13 Aug 2009) | 1 line
#6694: fix old function names.
................
10001 lines
297 KiB
C
10001 lines
297 KiB
C
/*
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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
|
|
Unicode Integration Proposal (see file Misc/unicode.txt).
|
|
|
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Major speed upgrades to the method implementations at the Reykjavik
|
|
NeedForSpeed sprint, by Fredrik Lundh and Andrew Dalke.
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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
|
|
associated documentation, you agree that you have read, understood,
|
|
and will comply with the following terms and conditions:
|
|
|
|
Permission to use, copy, modify, and distribute this software and its
|
|
associated documentation for any purpose and without fee is hereby
|
|
granted, provided that the above copyright notice appears in all
|
|
copies, and that both that copyright notice and this permission notice
|
|
appear in supporting documentation, and that the name of Secret Labs
|
|
AB or the author not be used in advertising or publicity pertaining to
|
|
distribution of the software without specific, written prior
|
|
permission.
|
|
|
|
SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO
|
|
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR BE LIABLE FOR
|
|
ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
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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|
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#define PY_SSIZE_T_CLEAN
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#include "Python.h"
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#include "bytes_methods.h"
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|
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#include "unicodeobject.h"
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|
#include "ucnhash.h"
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|
|
|
#ifdef MS_WINDOWS
|
|
#include <windows.h>
|
|
#endif
|
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|
|
/* Limit for the Unicode object free list */
|
|
|
|
#define PyUnicode_MAXFREELIST 1024
|
|
|
|
/* Limit for the Unicode object free list stay alive optimization.
|
|
|
|
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 PyUnicode_MAXFREELIST *
|
|
(sizeof(PyUnicodeObject) + KEEPALIVE_SIZE_LIMIT +
|
|
malloc()-overhead) bytes of unused garbage.
|
|
|
|
Setting the limit to 0 effectively turns the feature off.
|
|
|
|
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 */
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|
|
|
#ifdef WORDS_BIGENDIAN
|
|
# define BYTEORDER_IS_BIG_ENDIAN
|
|
#else
|
|
# define BYTEORDER_IS_LITTLE_ENDIAN
|
|
#endif
|
|
|
|
/* --- Globals ------------------------------------------------------------
|
|
|
|
The globals are initialized by the _PyUnicode_Init() API and should
|
|
not be used before calling that API.
|
|
|
|
*/
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* This dictionary holds all interned unicode strings. Note that references
|
|
to strings in this dictionary are *not* counted in the string's ob_refcnt.
|
|
When the interned string reaches a refcnt of 0 the string deallocation
|
|
function will delete the reference from this dictionary.
|
|
|
|
Another way to look at this is that to say that the actual reference
|
|
count of a string is: s->ob_refcnt + (s->state ? 2 : 0)
|
|
*/
|
|
static PyObject *interned;
|
|
|
|
/* Free list for Unicode objects */
|
|
static PyUnicodeObject *free_list;
|
|
static int numfree;
|
|
|
|
/* The empty Unicode object is shared to improve performance. */
|
|
static PyUnicodeObject *unicode_empty;
|
|
|
|
/* Single character Unicode strings in the Latin-1 range are being
|
|
shared as well. */
|
|
static PyUnicodeObject *unicode_latin1[256];
|
|
|
|
/* Default encoding to use and assume when NULL is passed as encoding
|
|
parameter; it is fixed to "utf-8". Always use the
|
|
PyUnicode_GetDefaultEncoding() API to access this global.
|
|
|
|
Don't forget to alter Py_FileSystemDefaultEncoding if you change the
|
|
hard coded default!
|
|
*/
|
|
static const char unicode_default_encoding[] = "utf-8";
|
|
|
|
/* Fast detection of the most frequent whitespace characters */
|
|
const unsigned char _Py_ascii_whitespace[] = {
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* case 0x0009: * HORIZONTAL TABULATION */
|
|
/* case 0x000A: * LINE FEED */
|
|
/* case 0x000B: * VERTICAL TABULATION */
|
|
/* case 0x000C: * FORM FEED */
|
|
/* case 0x000D: * CARRIAGE RETURN */
|
|
0, 1, 1, 1, 1, 1, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* case 0x001C: * FILE SEPARATOR */
|
|
/* case 0x001D: * GROUP SEPARATOR */
|
|
/* case 0x001E: * RECORD SEPARATOR */
|
|
/* case 0x001F: * UNIT SEPARATOR */
|
|
0, 0, 0, 0, 1, 1, 1, 1,
|
|
/* case 0x0020: * SPACE */
|
|
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, 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
|
|
};
|
|
|
|
static PyObject *unicode_encode_call_errorhandler(const char *errors,
|
|
PyObject **errorHandler,const char *encoding, const char *reason,
|
|
const Py_UNICODE *unicode, Py_ssize_t size, PyObject **exceptionObject,
|
|
Py_ssize_t startpos, Py_ssize_t endpos, Py_ssize_t *newpos);
|
|
|
|
/* Same for linebreaks */
|
|
static unsigned char ascii_linebreak[] = {
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|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* 0x000A, * LINE FEED */
|
|
/* 0x000D, * CARRIAGE RETURN */
|
|
0, 0, 1, 0, 0, 1, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* 0x001C, * FILE SEPARATOR */
|
|
/* 0x001D, * GROUP SEPARATOR */
|
|
/* 0x001E, * RECORD SEPARATOR */
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|
0, 0, 0, 0, 1, 1, 1, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
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|
0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
|
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|
0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
|
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0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
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|
0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0
|
|
};
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|
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Py_UNICODE
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PyUnicode_GetMax(void)
|
|
{
|
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#ifdef Py_UNICODE_WIDE
|
|
return 0x10FFFF;
|
|
#else
|
|
/* This is actually an illegal character, so it should
|
|
not be passed to unichr. */
|
|
return 0xFFFF;
|
|
#endif
|
|
}
|
|
|
|
/* --- Bloom Filters ----------------------------------------------------- */
|
|
|
|
/* stuff to implement simple "bloom filters" for Unicode characters.
|
|
to keep things simple, we use a single bitmask, using the least 5
|
|
bits from each unicode characters as the bit index. */
|
|
|
|
/* the linebreak mask is set up by Unicode_Init below */
|
|
|
|
#define BLOOM_MASK unsigned long
|
|
|
|
static BLOOM_MASK bloom_linebreak;
|
|
|
|
#define BLOOM(mask, ch) ((mask & (1 << ((ch) & 0x1F))))
|
|
|
|
#define BLOOM_LINEBREAK(ch) \
|
|
((ch) < 128U ? ascii_linebreak[(ch)] : \
|
|
(BLOOM(bloom_linebreak, (ch)) && Py_UNICODE_ISLINEBREAK(ch)))
|
|
|
|
Py_LOCAL_INLINE(BLOOM_MASK) make_bloom_mask(Py_UNICODE* ptr, Py_ssize_t len)
|
|
{
|
|
/* calculate simple bloom-style bitmask for a given unicode string */
|
|
|
|
long mask;
|
|
Py_ssize_t i;
|
|
|
|
mask = 0;
|
|
for (i = 0; i < len; i++)
|
|
mask |= (1 << (ptr[i] & 0x1F));
|
|
|
|
return mask;
|
|
}
|
|
|
|
Py_LOCAL_INLINE(int) unicode_member(Py_UNICODE chr, Py_UNICODE* set, Py_ssize_t setlen)
|
|
{
|
|
Py_ssize_t i;
|
|
|
|
for (i = 0; i < setlen; i++)
|
|
if (set[i] == chr)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define BLOOM_MEMBER(mask, chr, set, setlen) \
|
|
BLOOM(mask, chr) && unicode_member(chr, set, setlen)
|
|
|
|
/* --- Unicode Object ----------------------------------------------------- */
|
|
|
|
static
|
|
int unicode_resize(register PyUnicodeObject *unicode,
|
|
Py_ssize_t length)
|
|
{
|
|
void *oldstr;
|
|
|
|
/* Shortcut if there's nothing much to do. */
|
|
if (unicode->length == length)
|
|
goto reset;
|
|
|
|
/* Resizing shared object (unicode_empty or single character
|
|
objects) in-place is not allowed. Use PyUnicode_Resize()
|
|
instead ! */
|
|
|
|
if (unicode == unicode_empty ||
|
|
(unicode->length == 1 &&
|
|
unicode->str[0] < 256U &&
|
|
unicode_latin1[unicode->str[0]] == unicode)) {
|
|
PyErr_SetString(PyExc_SystemError,
|
|
"can't resize shared str objects");
|
|
return -1;
|
|
}
|
|
|
|
/* We allocate one more byte to make sure the string is Ux0000 terminated.
|
|
The overallocation is also used by fastsearch, which assumes that it's
|
|
safe to look at str[length] (without making any assumptions about what
|
|
it contains). */
|
|
|
|
oldstr = unicode->str;
|
|
unicode->str = PyObject_REALLOC(unicode->str,
|
|
sizeof(Py_UNICODE) * (length + 1));
|
|
if (!unicode->str) {
|
|
unicode->str = (Py_UNICODE *)oldstr;
|
|
PyErr_NoMemory();
|
|
return -1;
|
|
}
|
|
unicode->str[length] = 0;
|
|
unicode->length = length;
|
|
|
|
reset:
|
|
/* Reset the object caches */
|
|
if (unicode->defenc) {
|
|
Py_DECREF(unicode->defenc);
|
|
unicode->defenc = NULL;
|
|
}
|
|
unicode->hash = -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* We allocate one more byte to make sure the string is
|
|
Ux0000 terminated; some code (e.g. new_identifier)
|
|
relies on that.
|
|
|
|
XXX This allocator could further be enhanced by assuring that the
|
|
free list never reduces its size below 1.
|
|
|
|
*/
|
|
|
|
static
|
|
PyUnicodeObject *_PyUnicode_New(Py_ssize_t length)
|
|
{
|
|
register PyUnicodeObject *unicode;
|
|
|
|
/* Optimization for empty strings */
|
|
if (length == 0 && unicode_empty != NULL) {
|
|
Py_INCREF(unicode_empty);
|
|
return unicode_empty;
|
|
}
|
|
|
|
/* Ensure we won't overflow the size. */
|
|
if (length > ((PY_SSIZE_T_MAX / sizeof(Py_UNICODE)) - 1)) {
|
|
return (PyUnicodeObject *)PyErr_NoMemory();
|
|
}
|
|
|
|
/* Unicode freelist & memory allocation */
|
|
if (free_list) {
|
|
unicode = free_list;
|
|
free_list = *(PyUnicodeObject **)unicode;
|
|
numfree--;
|
|
if (unicode->str) {
|
|
/* Keep-Alive optimization: we only upsize the buffer,
|
|
never downsize it. */
|
|
if ((unicode->length < length) &&
|
|
unicode_resize(unicode, length) < 0) {
|
|
PyObject_DEL(unicode->str);
|
|
unicode->str = NULL;
|
|
}
|
|
}
|
|
else {
|
|
size_t new_size = sizeof(Py_UNICODE) * ((size_t)length + 1);
|
|
unicode->str = (Py_UNICODE*) PyObject_MALLOC(new_size);
|
|
}
|
|
PyObject_INIT(unicode, &PyUnicode_Type);
|
|
}
|
|
else {
|
|
size_t new_size;
|
|
unicode = PyObject_New(PyUnicodeObject, &PyUnicode_Type);
|
|
if (unicode == NULL)
|
|
return NULL;
|
|
new_size = sizeof(Py_UNICODE) * ((size_t)length + 1);
|
|
unicode->str = (Py_UNICODE*) PyObject_MALLOC(new_size);
|
|
}
|
|
|
|
if (!unicode->str) {
|
|
PyErr_NoMemory();
|
|
goto onError;
|
|
}
|
|
/* 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.
|
|
*/
|
|
unicode->str[0] = 0;
|
|
unicode->str[length] = 0;
|
|
unicode->length = length;
|
|
unicode->hash = -1;
|
|
unicode->state = 0;
|
|
unicode->defenc = NULL;
|
|
return unicode;
|
|
|
|
onError:
|
|
/* XXX UNREF/NEWREF interface should be more symmetrical */
|
|
_Py_DEC_REFTOTAL;
|
|
_Py_ForgetReference((PyObject *)unicode);
|
|
PyObject_Del(unicode);
|
|
return NULL;
|
|
}
|
|
|
|
static
|
|
void unicode_dealloc(register PyUnicodeObject *unicode)
|
|
{
|
|
switch (PyUnicode_CHECK_INTERNED(unicode)) {
|
|
case SSTATE_NOT_INTERNED:
|
|
break;
|
|
|
|
case SSTATE_INTERNED_MORTAL:
|
|
/* revive dead object temporarily for DelItem */
|
|
Py_REFCNT(unicode) = 3;
|
|
if (PyDict_DelItem(interned, (PyObject *)unicode) != 0)
|
|
Py_FatalError(
|
|
"deletion of interned string failed");
|
|
break;
|
|
|
|
case SSTATE_INTERNED_IMMORTAL:
|
|
Py_FatalError("Immortal interned string died.");
|
|
|
|
default:
|
|
Py_FatalError("Inconsistent interned string state.");
|
|
}
|
|
|
|
if (PyUnicode_CheckExact(unicode) &&
|
|
numfree < PyUnicode_MAXFREELIST) {
|
|
/* Keep-Alive optimization */
|
|
if (unicode->length >= KEEPALIVE_SIZE_LIMIT) {
|
|
PyObject_DEL(unicode->str);
|
|
unicode->str = NULL;
|
|
unicode->length = 0;
|
|
}
|
|
if (unicode->defenc) {
|
|
Py_DECREF(unicode->defenc);
|
|
unicode->defenc = NULL;
|
|
}
|
|
/* Add to free list */
|
|
*(PyUnicodeObject **)unicode = free_list;
|
|
free_list = unicode;
|
|
numfree++;
|
|
}
|
|
else {
|
|
PyObject_DEL(unicode->str);
|
|
Py_XDECREF(unicode->defenc);
|
|
Py_TYPE(unicode)->tp_free((PyObject *)unicode);
|
|
}
|
|
}
|
|
|
|
static
|
|
int _PyUnicode_Resize(PyUnicodeObject **unicode, Py_ssize_t length)
|
|
{
|
|
register PyUnicodeObject *v;
|
|
|
|
/* Argument checks */
|
|
if (unicode == NULL) {
|
|
PyErr_BadInternalCall();
|
|
return -1;
|
|
}
|
|
v = *unicode;
|
|
if (v == NULL || !PyUnicode_Check(v) || Py_REFCNT(v) != 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 = 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);
|
|
}
|
|
|
|
int PyUnicode_Resize(PyObject **unicode, Py_ssize_t length)
|
|
{
|
|
return _PyUnicode_Resize((PyUnicodeObject **)unicode, length);
|
|
}
|
|
|
|
PyObject *PyUnicode_FromUnicode(const Py_UNICODE *u,
|
|
Py_ssize_t 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;
|
|
}
|
|
|
|
PyObject *PyUnicode_FromStringAndSize(const char *u, Py_ssize_t size)
|
|
{
|
|
PyUnicodeObject *unicode;
|
|
|
|
if (size < 0) {
|
|
PyErr_SetString(PyExc_SystemError,
|
|
"Negative size passed to PyUnicode_FromStringAndSize");
|
|
return NULL;
|
|
}
|
|
|
|
/* If the Unicode data is known at construction time, we can apply
|
|
some optimizations which share commonly used objects.
|
|
Also, this means the input must be UTF-8, so fall back to the
|
|
UTF-8 decoder at the end. */
|
|
if (u != NULL) {
|
|
|
|
/* Optimization for empty strings */
|
|
if (size == 0 && unicode_empty != NULL) {
|
|
Py_INCREF(unicode_empty);
|
|
return (PyObject *)unicode_empty;
|
|
}
|
|
|
|
/* Single characters are shared when using this constructor.
|
|
Restrict to ASCII, since the input must be UTF-8. */
|
|
if (size == 1 && Py_CHARMASK(*u) < 128) {
|
|
unicode = unicode_latin1[Py_CHARMASK(*u)];
|
|
if (!unicode) {
|
|
unicode = _PyUnicode_New(1);
|
|
if (!unicode)
|
|
return NULL;
|
|
unicode->str[0] = Py_CHARMASK(*u);
|
|
unicode_latin1[Py_CHARMASK(*u)] = unicode;
|
|
}
|
|
Py_INCREF(unicode);
|
|
return (PyObject *)unicode;
|
|
}
|
|
|
|
return PyUnicode_DecodeUTF8(u, size, NULL);
|
|
}
|
|
|
|
unicode = _PyUnicode_New(size);
|
|
if (!unicode)
|
|
return NULL;
|
|
|
|
return (PyObject *)unicode;
|
|
}
|
|
|
|
PyObject *PyUnicode_FromString(const char *u)
|
|
{
|
|
size_t size = strlen(u);
|
|
if (size > PY_SSIZE_T_MAX) {
|
|
PyErr_SetString(PyExc_OverflowError, "input too long");
|
|
return NULL;
|
|
}
|
|
|
|
return PyUnicode_FromStringAndSize(u, size);
|
|
}
|
|
|
|
#ifdef HAVE_WCHAR_H
|
|
|
|
#if (Py_UNICODE_SIZE == 2) && defined(SIZEOF_WCHAR_T) && (SIZEOF_WCHAR_T == 4)
|
|
# define CONVERT_WCHAR_TO_SURROGATES
|
|
#endif
|
|
|
|
#ifdef CONVERT_WCHAR_TO_SURROGATES
|
|
|
|
/* Here sizeof(wchar_t) is 4 but Py_UNICODE_SIZE == 2, so we need
|
|
to convert from UTF32 to UTF16. */
|
|
|
|
PyObject *PyUnicode_FromWideChar(register const wchar_t *w,
|
|
Py_ssize_t size)
|
|
{
|
|
PyUnicodeObject *unicode;
|
|
register Py_ssize_t i;
|
|
Py_ssize_t alloc;
|
|
const wchar_t *orig_w;
|
|
|
|
if (w == NULL) {
|
|
if (size == 0)
|
|
return PyUnicode_FromStringAndSize(NULL, 0);
|
|
PyErr_BadInternalCall();
|
|
return NULL;
|
|
}
|
|
|
|
if (size == -1) {
|
|
size = wcslen(w);
|
|
}
|
|
|
|
alloc = size;
|
|
orig_w = w;
|
|
for (i = size; i > 0; i--) {
|
|
if (*w > 0xFFFF)
|
|
alloc++;
|
|
w++;
|
|
}
|
|
w = orig_w;
|
|
unicode = _PyUnicode_New(alloc);
|
|
if (!unicode)
|
|
return NULL;
|
|
|
|
/* Copy the wchar_t data into the new object */
|
|
{
|
|
register Py_UNICODE *u;
|
|
u = PyUnicode_AS_UNICODE(unicode);
|
|
for (i = size; i > 0; i--) {
|
|
if (*w > 0xFFFF) {
|
|
wchar_t ordinal = *w++;
|
|
ordinal -= 0x10000;
|
|
*u++ = 0xD800 | (ordinal >> 10);
|
|
*u++ = 0xDC00 | (ordinal & 0x3FF);
|
|
}
|
|
else
|
|
*u++ = *w++;
|
|
}
|
|
}
|
|
return (PyObject *)unicode;
|
|
}
|
|
|
|
#else
|
|
|
|
PyObject *PyUnicode_FromWideChar(register const wchar_t *w,
|
|
Py_ssize_t size)
|
|
{
|
|
PyUnicodeObject *unicode;
|
|
|
|
if (w == NULL) {
|
|
if (size == 0)
|
|
return PyUnicode_FromStringAndSize(NULL, 0);
|
|
PyErr_BadInternalCall();
|
|
return NULL;
|
|
}
|
|
|
|
if (size == -1) {
|
|
size = wcslen(w);
|
|
}
|
|
|
|
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 Py_ssize_t i;
|
|
u = PyUnicode_AS_UNICODE(unicode);
|
|
for (i = size; i > 0; i--)
|
|
*u++ = *w++;
|
|
}
|
|
#endif
|
|
|
|
return (PyObject *)unicode;
|
|
}
|
|
|
|
#endif /* CONVERT_WCHAR_TO_SURROGATES */
|
|
|
|
#undef CONVERT_WCHAR_TO_SURROGATES
|
|
|
|
static void
|
|
makefmt(char *fmt, int longflag, int size_tflag, int zeropad, int width, int precision, char c)
|
|
{
|
|
*fmt++ = '%';
|
|
if (width) {
|
|
if (zeropad)
|
|
*fmt++ = '0';
|
|
fmt += sprintf(fmt, "%d", width);
|
|
}
|
|
if (precision)
|
|
fmt += sprintf(fmt, ".%d", precision);
|
|
if (longflag)
|
|
*fmt++ = 'l';
|
|
else if (size_tflag) {
|
|
char *f = PY_FORMAT_SIZE_T;
|
|
while (*f)
|
|
*fmt++ = *f++;
|
|
}
|
|
*fmt++ = c;
|
|
*fmt = '\0';
|
|
}
|
|
|
|
#define appendstring(string) {for (copy = string;*copy;) *s++ = *copy++;}
|
|
|
|
PyObject *
|
|
PyUnicode_FromFormatV(const char *format, va_list vargs)
|
|
{
|
|
va_list count;
|
|
Py_ssize_t callcount = 0;
|
|
PyObject **callresults = NULL;
|
|
PyObject **callresult = NULL;
|
|
Py_ssize_t n = 0;
|
|
int width = 0;
|
|
int precision = 0;
|
|
int zeropad;
|
|
const char* f;
|
|
Py_UNICODE *s;
|
|
PyObject *string;
|
|
/* used by sprintf */
|
|
char buffer[21];
|
|
/* use abuffer instead of buffer, if we need more space
|
|
* (which can happen if there's a format specifier with width). */
|
|
char *abuffer = NULL;
|
|
char *realbuffer;
|
|
Py_ssize_t abuffersize = 0;
|
|
char fmt[60]; /* should be enough for %0width.precisionld */
|
|
const char *copy;
|
|
|
|
#ifdef VA_LIST_IS_ARRAY
|
|
Py_MEMCPY(count, vargs, sizeof(va_list));
|
|
#else
|
|
#ifdef __va_copy
|
|
__va_copy(count, vargs);
|
|
#else
|
|
count = vargs;
|
|
#endif
|
|
#endif
|
|
/* step 1: count the number of %S/%R/%A/%s format specifications
|
|
* (we call PyObject_Str()/PyObject_Repr()/PyObject_ASCII()/
|
|
* PyUnicode_DecodeUTF8() for these objects once during step 3 and put the
|
|
* result in an array) */
|
|
for (f = format; *f; f++) {
|
|
if (*f == '%') {
|
|
if (*(f+1)=='%')
|
|
continue;
|
|
if (*(f+1)=='S' || *(f+1)=='R' || *(f+1)=='A')
|
|
++callcount;
|
|
while (ISDIGIT((unsigned)*f))
|
|
width = (width*10) + *f++ - '0';
|
|
while (*++f && *f != '%' && !ISALPHA((unsigned)*f))
|
|
;
|
|
if (*f == 's')
|
|
++callcount;
|
|
}
|
|
}
|
|
/* step 2: allocate memory for the results of
|
|
* PyObject_Str()/PyObject_Repr()/PyUnicode_DecodeUTF8() calls */
|
|
if (callcount) {
|
|
callresults = PyObject_Malloc(sizeof(PyObject *)*callcount);
|
|
if (!callresults) {
|
|
PyErr_NoMemory();
|
|
return NULL;
|
|
}
|
|
callresult = callresults;
|
|
}
|
|
/* step 3: figure out how large a buffer we need */
|
|
for (f = format; *f; f++) {
|
|
if (*f == '%') {
|
|
const char* p = f;
|
|
width = 0;
|
|
while (ISDIGIT((unsigned)*f))
|
|
width = (width*10) + *f++ - '0';
|
|
while (*++f && *f != '%' && !ISALPHA((unsigned)*f))
|
|
;
|
|
|
|
/* skip the 'l' or 'z' in {%ld, %zd, %lu, %zu} since
|
|
* they don't affect the amount of space we reserve.
|
|
*/
|
|
if ((*f == 'l' || *f == 'z') &&
|
|
(f[1] == 'd' || f[1] == 'u'))
|
|
++f;
|
|
|
|
switch (*f) {
|
|
case 'c':
|
|
(void)va_arg(count, int);
|
|
/* fall through... */
|
|
case '%':
|
|
n++;
|
|
break;
|
|
case 'd': case 'u': case 'i': case 'x':
|
|
(void) va_arg(count, int);
|
|
/* 20 bytes is enough to hold a 64-bit
|
|
integer. Decimal takes the most space.
|
|
This isn't enough for octal.
|
|
If a width is specified we need more
|
|
(which we allocate later). */
|
|
if (width < 20)
|
|
width = 20;
|
|
n += width;
|
|
if (abuffersize < width)
|
|
abuffersize = width;
|
|
break;
|
|
case 's':
|
|
{
|
|
/* UTF-8 */
|
|
const char *s = va_arg(count, const char*);
|
|
PyObject *str = PyUnicode_DecodeUTF8(s, strlen(s), "replace");
|
|
if (!str)
|
|
goto fail;
|
|
n += PyUnicode_GET_SIZE(str);
|
|
/* Remember the str and switch to the next slot */
|
|
*callresult++ = str;
|
|
break;
|
|
}
|
|
case 'U':
|
|
{
|
|
PyObject *obj = va_arg(count, PyObject *);
|
|
assert(obj && PyUnicode_Check(obj));
|
|
n += PyUnicode_GET_SIZE(obj);
|
|
break;
|
|
}
|
|
case 'V':
|
|
{
|
|
PyObject *obj = va_arg(count, PyObject *);
|
|
const char *str = va_arg(count, const char *);
|
|
assert(obj || str);
|
|
assert(!obj || PyUnicode_Check(obj));
|
|
if (obj)
|
|
n += PyUnicode_GET_SIZE(obj);
|
|
else
|
|
n += strlen(str);
|
|
break;
|
|
}
|
|
case 'S':
|
|
{
|
|
PyObject *obj = va_arg(count, PyObject *);
|
|
PyObject *str;
|
|
assert(obj);
|
|
str = PyObject_Str(obj);
|
|
if (!str)
|
|
goto fail;
|
|
n += PyUnicode_GET_SIZE(str);
|
|
/* Remember the str and switch to the next slot */
|
|
*callresult++ = str;
|
|
break;
|
|
}
|
|
case 'R':
|
|
{
|
|
PyObject *obj = va_arg(count, PyObject *);
|
|
PyObject *repr;
|
|
assert(obj);
|
|
repr = PyObject_Repr(obj);
|
|
if (!repr)
|
|
goto fail;
|
|
n += PyUnicode_GET_SIZE(repr);
|
|
/* Remember the repr and switch to the next slot */
|
|
*callresult++ = repr;
|
|
break;
|
|
}
|
|
case 'A':
|
|
{
|
|
PyObject *obj = va_arg(count, PyObject *);
|
|
PyObject *ascii;
|
|
assert(obj);
|
|
ascii = PyObject_ASCII(obj);
|
|
if (!ascii)
|
|
goto fail;
|
|
n += PyUnicode_GET_SIZE(ascii);
|
|
/* Remember the repr and switch to the next slot */
|
|
*callresult++ = ascii;
|
|
break;
|
|
}
|
|
case 'p':
|
|
(void) va_arg(count, int);
|
|
/* maximum 64-bit pointer representation:
|
|
* 0xffffffffffffffff
|
|
* so 19 characters is enough.
|
|
* XXX I count 18 -- what's the extra for?
|
|
*/
|
|
n += 19;
|
|
break;
|
|
default:
|
|
/* if we stumble upon an unknown
|
|
formatting code, copy the rest of
|
|
the format string to the output
|
|
string. (we cannot just skip the
|
|
code, since there's no way to know
|
|
what's in the argument list) */
|
|
n += strlen(p);
|
|
goto expand;
|
|
}
|
|
} else
|
|
n++;
|
|
}
|
|
expand:
|
|
if (abuffersize > 20) {
|
|
abuffer = PyObject_Malloc(abuffersize);
|
|
if (!abuffer) {
|
|
PyErr_NoMemory();
|
|
goto fail;
|
|
}
|
|
realbuffer = abuffer;
|
|
}
|
|
else
|
|
realbuffer = buffer;
|
|
/* step 4: fill the buffer */
|
|
/* Since we've analyzed how much space we need for the worst case,
|
|
we don't have to resize the string.
|
|
There can be no errors beyond this point. */
|
|
string = PyUnicode_FromUnicode(NULL, n);
|
|
if (!string)
|
|
goto fail;
|
|
|
|
s = PyUnicode_AS_UNICODE(string);
|
|
callresult = callresults;
|
|
|
|
for (f = format; *f; f++) {
|
|
if (*f == '%') {
|
|
const char* p = f++;
|
|
int longflag = 0;
|
|
int size_tflag = 0;
|
|
zeropad = (*f == '0');
|
|
/* parse the width.precision part */
|
|
width = 0;
|
|
while (ISDIGIT((unsigned)*f))
|
|
width = (width*10) + *f++ - '0';
|
|
precision = 0;
|
|
if (*f == '.') {
|
|
f++;
|
|
while (ISDIGIT((unsigned)*f))
|
|
precision = (precision*10) + *f++ - '0';
|
|
}
|
|
/* handle the long flag, but only for %ld and %lu.
|
|
others can be added when necessary. */
|
|
if (*f == 'l' && (f[1] == 'd' || f[1] == 'u')) {
|
|
longflag = 1;
|
|
++f;
|
|
}
|
|
/* handle the size_t flag. */
|
|
if (*f == 'z' && (f[1] == 'd' || f[1] == 'u')) {
|
|
size_tflag = 1;
|
|
++f;
|
|
}
|
|
|
|
switch (*f) {
|
|
case 'c':
|
|
*s++ = va_arg(vargs, int);
|
|
break;
|
|
case 'd':
|
|
makefmt(fmt, longflag, size_tflag, zeropad, width, precision, 'd');
|
|
if (longflag)
|
|
sprintf(realbuffer, fmt, va_arg(vargs, long));
|
|
else if (size_tflag)
|
|
sprintf(realbuffer, fmt, va_arg(vargs, Py_ssize_t));
|
|
else
|
|
sprintf(realbuffer, fmt, va_arg(vargs, int));
|
|
appendstring(realbuffer);
|
|
break;
|
|
case 'u':
|
|
makefmt(fmt, longflag, size_tflag, zeropad, width, precision, 'u');
|
|
if (longflag)
|
|
sprintf(realbuffer, fmt, va_arg(vargs, unsigned long));
|
|
else if (size_tflag)
|
|
sprintf(realbuffer, fmt, va_arg(vargs, size_t));
|
|
else
|
|
sprintf(realbuffer, fmt, va_arg(vargs, unsigned int));
|
|
appendstring(realbuffer);
|
|
break;
|
|
case 'i':
|
|
makefmt(fmt, 0, 0, zeropad, width, precision, 'i');
|
|
sprintf(realbuffer, fmt, va_arg(vargs, int));
|
|
appendstring(realbuffer);
|
|
break;
|
|
case 'x':
|
|
makefmt(fmt, 0, 0, zeropad, width, precision, 'x');
|
|
sprintf(realbuffer, fmt, va_arg(vargs, int));
|
|
appendstring(realbuffer);
|
|
break;
|
|
case 's':
|
|
{
|
|
/* unused, since we already have the result */
|
|
(void) va_arg(vargs, char *);
|
|
Py_UNICODE_COPY(s, PyUnicode_AS_UNICODE(*callresult),
|
|
PyUnicode_GET_SIZE(*callresult));
|
|
s += PyUnicode_GET_SIZE(*callresult);
|
|
/* We're done with the unicode()/repr() => forget it */
|
|
Py_DECREF(*callresult);
|
|
/* switch to next unicode()/repr() result */
|
|
++callresult;
|
|
break;
|
|
}
|
|
case 'U':
|
|
{
|
|
PyObject *obj = va_arg(vargs, PyObject *);
|
|
Py_ssize_t size = PyUnicode_GET_SIZE(obj);
|
|
Py_UNICODE_COPY(s, PyUnicode_AS_UNICODE(obj), size);
|
|
s += size;
|
|
break;
|
|
}
|
|
case 'V':
|
|
{
|
|
PyObject *obj = va_arg(vargs, PyObject *);
|
|
const char *str = va_arg(vargs, const char *);
|
|
if (obj) {
|
|
Py_ssize_t size = PyUnicode_GET_SIZE(obj);
|
|
Py_UNICODE_COPY(s, PyUnicode_AS_UNICODE(obj), size);
|
|
s += size;
|
|
} else {
|
|
appendstring(str);
|
|
}
|
|
break;
|
|
}
|
|
case 'S':
|
|
case 'R':
|
|
{
|
|
Py_UNICODE *ucopy;
|
|
Py_ssize_t usize;
|
|
Py_ssize_t upos;
|
|
/* unused, since we already have the result */
|
|
(void) va_arg(vargs, PyObject *);
|
|
ucopy = PyUnicode_AS_UNICODE(*callresult);
|
|
usize = PyUnicode_GET_SIZE(*callresult);
|
|
for (upos = 0; upos<usize;)
|
|
*s++ = ucopy[upos++];
|
|
/* We're done with the unicode()/repr() => forget it */
|
|
Py_DECREF(*callresult);
|
|
/* switch to next unicode()/repr() result */
|
|
++callresult;
|
|
break;
|
|
}
|
|
case 'p':
|
|
sprintf(buffer, "%p", va_arg(vargs, void*));
|
|
/* %p is ill-defined: ensure leading 0x. */
|
|
if (buffer[1] == 'X')
|
|
buffer[1] = 'x';
|
|
else if (buffer[1] != 'x') {
|
|
memmove(buffer+2, buffer, strlen(buffer)+1);
|
|
buffer[0] = '0';
|
|
buffer[1] = 'x';
|
|
}
|
|
appendstring(buffer);
|
|
break;
|
|
case '%':
|
|
*s++ = '%';
|
|
break;
|
|
default:
|
|
appendstring(p);
|
|
goto end;
|
|
}
|
|
} else
|
|
*s++ = *f;
|
|
}
|
|
|
|
end:
|
|
if (callresults)
|
|
PyObject_Free(callresults);
|
|
if (abuffer)
|
|
PyObject_Free(abuffer);
|
|
PyUnicode_Resize(&string, s - PyUnicode_AS_UNICODE(string));
|
|
return string;
|
|
fail:
|
|
if (callresults) {
|
|
PyObject **callresult2 = callresults;
|
|
while (callresult2 < callresult) {
|
|
Py_DECREF(*callresult2);
|
|
++callresult2;
|
|
}
|
|
PyObject_Free(callresults);
|
|
}
|
|
if (abuffer)
|
|
PyObject_Free(abuffer);
|
|
return NULL;
|
|
}
|
|
|
|
#undef appendstring
|
|
|
|
PyObject *
|
|
PyUnicode_FromFormat(const char *format, ...)
|
|
{
|
|
PyObject* ret;
|
|
va_list vargs;
|
|
|
|
#ifdef HAVE_STDARG_PROTOTYPES
|
|
va_start(vargs, format);
|
|
#else
|
|
va_start(vargs);
|
|
#endif
|
|
ret = PyUnicode_FromFormatV(format, vargs);
|
|
va_end(vargs);
|
|
return ret;
|
|
}
|
|
|
|
Py_ssize_t PyUnicode_AsWideChar(PyUnicodeObject *unicode,
|
|
wchar_t *w,
|
|
Py_ssize_t size)
|
|
{
|
|
if (unicode == NULL) {
|
|
PyErr_BadInternalCall();
|
|
return -1;
|
|
}
|
|
|
|
/* If possible, try to copy the 0-termination as well */
|
|
if (size > PyUnicode_GET_SIZE(unicode))
|
|
size = PyUnicode_GET_SIZE(unicode) + 1;
|
|
|
|
#ifdef HAVE_USABLE_WCHAR_T
|
|
memcpy(w, unicode->str, size * sizeof(wchar_t));
|
|
#else
|
|
{
|
|
register Py_UNICODE *u;
|
|
register Py_ssize_t i;
|
|
u = PyUnicode_AS_UNICODE(unicode);
|
|
for (i = size; i > 0; i--)
|
|
*w++ = *u++;
|
|
}
|
|
#endif
|
|
|
|
if (size > PyUnicode_GET_SIZE(unicode))
|
|
return PyUnicode_GET_SIZE(unicode);
|
|
else
|
|
return size;
|
|
}
|
|
|
|
#endif
|
|
|
|
PyObject *PyUnicode_FromOrdinal(int ordinal)
|
|
{
|
|
Py_UNICODE s[2];
|
|
|
|
if (ordinal < 0 || ordinal > 0x10ffff) {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"chr() arg not in range(0x110000)");
|
|
return NULL;
|
|
}
|
|
|
|
#ifndef Py_UNICODE_WIDE
|
|
if (ordinal > 0xffff) {
|
|
ordinal -= 0x10000;
|
|
s[0] = 0xD800 | (ordinal >> 10);
|
|
s[1] = 0xDC00 | (ordinal & 0x3FF);
|
|
return PyUnicode_FromUnicode(s, 2);
|
|
}
|
|
#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_Str() 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));
|
|
}
|
|
PyErr_Format(PyExc_TypeError,
|
|
"Can't convert '%.100s' object to str implicitly",
|
|
Py_TYPE(obj)->tp_name);
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_FromEncodedObject(register PyObject *obj,
|
|
const char *encoding,
|
|
const char *errors)
|
|
{
|
|
const char *s = NULL;
|
|
Py_ssize_t len;
|
|
PyObject *v;
|
|
|
|
if (obj == NULL) {
|
|
PyErr_BadInternalCall();
|
|
return NULL;
|
|
}
|
|
|
|
if (PyUnicode_Check(obj)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"decoding str is not supported");
|
|
return NULL;
|
|
}
|
|
|
|
/* Coerce object */
|
|
if (PyBytes_Check(obj)) {
|
|
s = PyBytes_AS_STRING(obj);
|
|
len = PyBytes_GET_SIZE(obj);
|
|
}
|
|
else if (PyByteArray_Check(obj)) {
|
|
s = PyByteArray_AS_STRING(obj);
|
|
len = PyByteArray_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 str: need string or buffer, "
|
|
"%.80s found",
|
|
Py_TYPE(obj)->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,
|
|
Py_ssize_t size,
|
|
const char *encoding,
|
|
const char *errors)
|
|
{
|
|
PyObject *buffer = NULL, *unicode;
|
|
Py_buffer info;
|
|
char lower[20]; /* Enough for any encoding name we recognize */
|
|
char *l;
|
|
const char *e;
|
|
|
|
if (encoding == NULL)
|
|
encoding = PyUnicode_GetDefaultEncoding();
|
|
|
|
/* Convert encoding to lower case and replace '_' with '-' in order to
|
|
catch e.g. UTF_8 */
|
|
e = encoding;
|
|
l = lower;
|
|
while (*e && l < &lower[(sizeof lower) - 2]) {
|
|
if (ISUPPER(*e)) {
|
|
*l++ = TOLOWER(*e++);
|
|
}
|
|
else if (*e == '_') {
|
|
*l++ = '-';
|
|
e++;
|
|
}
|
|
else {
|
|
*l++ = *e++;
|
|
}
|
|
}
|
|
*l = '\0';
|
|
|
|
/* Shortcuts for common default encodings */
|
|
if (strcmp(lower, "utf-8") == 0)
|
|
return PyUnicode_DecodeUTF8(s, size, errors);
|
|
else if ((strcmp(lower, "latin-1") == 0) ||
|
|
(strcmp(lower, "iso-8859-1") == 0))
|
|
return PyUnicode_DecodeLatin1(s, size, errors);
|
|
#if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T)
|
|
else if (strcmp(lower, "mbcs") == 0)
|
|
return PyUnicode_DecodeMBCS(s, size, errors);
|
|
#endif
|
|
else if (strcmp(lower, "ascii") == 0)
|
|
return PyUnicode_DecodeASCII(s, size, errors);
|
|
else if (strcmp(lower, "utf-16") == 0)
|
|
return PyUnicode_DecodeUTF16(s, size, errors, 0);
|
|
else if (strcmp(lower, "utf-32") == 0)
|
|
return PyUnicode_DecodeUTF32(s, size, errors, 0);
|
|
|
|
/* Decode via the codec registry */
|
|
buffer = NULL;
|
|
if (PyBuffer_FillInfo(&info, NULL, (void *)s, size, 1, PyBUF_FULL_RO) < 0)
|
|
goto onError;
|
|
buffer = PyMemoryView_FromBuffer(&info);
|
|
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 a str object (type=%.400s)",
|
|
Py_TYPE(unicode)->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_AsDecodedUnicode(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;
|
|
if (!PyUnicode_Check(v)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"decoder did not return a str object (type=%.400s)",
|
|
Py_TYPE(v)->tp_name);
|
|
Py_DECREF(v);
|
|
goto onError;
|
|
}
|
|
return v;
|
|
|
|
onError:
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_Encode(const Py_UNICODE *s,
|
|
Py_ssize_t 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();
|
|
return NULL;
|
|
}
|
|
|
|
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);
|
|
/* During bootstrap, we may need to find the encodings
|
|
package, to load the file system encoding, and require the
|
|
file system encoding in order to load the encodings
|
|
package.
|
|
|
|
Break out of this dependency by assuming that the path to
|
|
the encodings module is ASCII-only. XXX could try wcstombs
|
|
instead, if the file system encoding is the locale's
|
|
encoding. */
|
|
else if (Py_FileSystemDefaultEncoding &&
|
|
strcmp(encoding, Py_FileSystemDefaultEncoding) == 0 &&
|
|
!PyThreadState_GET()->interp->codecs_initialized)
|
|
return PyUnicode_AsASCIIString(unicode);
|
|
}
|
|
|
|
/* Encode via the codec registry */
|
|
v = PyCodec_Encode(unicode, encoding, errors);
|
|
if (v == NULL)
|
|
return NULL;
|
|
|
|
/* The normal path */
|
|
if (PyBytes_Check(v))
|
|
return v;
|
|
|
|
/* If the codec returns a buffer, raise a warning and convert to bytes */
|
|
if (PyByteArray_Check(v)) {
|
|
char msg[100];
|
|
PyObject *b;
|
|
PyOS_snprintf(msg, sizeof(msg),
|
|
"encoder %s returned buffer instead of bytes",
|
|
encoding);
|
|
if (PyErr_WarnEx(PyExc_RuntimeWarning, msg, 1) < 0) {
|
|
Py_DECREF(v);
|
|
return NULL;
|
|
}
|
|
|
|
b = PyBytes_FromStringAndSize(PyByteArray_AS_STRING(v), Py_SIZE(v));
|
|
Py_DECREF(v);
|
|
return b;
|
|
}
|
|
|
|
PyErr_Format(PyExc_TypeError,
|
|
"encoder did not return a bytes object (type=%.400s)",
|
|
Py_TYPE(v)->tp_name);
|
|
Py_DECREF(v);
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_AsEncodedUnicode(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;
|
|
if (!PyUnicode_Check(v)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"encoder did not return an str object (type=%.400s)",
|
|
Py_TYPE(v)->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;
|
|
if (errors != NULL)
|
|
Py_FatalError("non-NULL encoding in _PyUnicode_AsDefaultEncodedString");
|
|
v = PyUnicode_EncodeUTF8(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode),
|
|
NULL);
|
|
if (!v)
|
|
return NULL;
|
|
((PyUnicodeObject *)unicode)->defenc = v;
|
|
return v;
|
|
}
|
|
|
|
PyObject*
|
|
PyUnicode_DecodeFSDefault(const char *s) {
|
|
Py_ssize_t size = (Py_ssize_t)strlen(s);
|
|
return PyUnicode_DecodeFSDefaultAndSize(s, size);
|
|
}
|
|
|
|
PyObject*
|
|
PyUnicode_DecodeFSDefaultAndSize(const char *s, Py_ssize_t size)
|
|
{
|
|
/* During the early bootstrapping process, Py_FileSystemDefaultEncoding
|
|
can be undefined. If it is case, decode using UTF-8. The following assumes
|
|
that Py_FileSystemDefaultEncoding is set to a built-in encoding during the
|
|
bootstrapping process where the codecs aren't ready yet.
|
|
*/
|
|
if (Py_FileSystemDefaultEncoding) {
|
|
#if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T)
|
|
if (strcmp(Py_FileSystemDefaultEncoding, "mbcs") == 0) {
|
|
return PyUnicode_DecodeMBCS(s, size, "replace");
|
|
}
|
|
#elif defined(__APPLE__)
|
|
if (strcmp(Py_FileSystemDefaultEncoding, "utf-8") == 0) {
|
|
return PyUnicode_DecodeUTF8(s, size, "replace");
|
|
}
|
|
#endif
|
|
return PyUnicode_Decode(s, size,
|
|
Py_FileSystemDefaultEncoding,
|
|
"replace");
|
|
}
|
|
else {
|
|
return PyUnicode_DecodeUTF8(s, size, "replace");
|
|
}
|
|
}
|
|
|
|
/* Convert the argument to a bytes object, according to the file
|
|
system encoding */
|
|
|
|
int
|
|
PyUnicode_FSConverter(PyObject* arg, void* addr)
|
|
{
|
|
PyObject *output = NULL;
|
|
Py_ssize_t size;
|
|
void *data;
|
|
if (arg == NULL) {
|
|
Py_DECREF(*(PyObject**)addr);
|
|
return 1;
|
|
}
|
|
if (PyBytes_Check(arg) || PyByteArray_Check(arg)) {
|
|
output = arg;
|
|
Py_INCREF(output);
|
|
}
|
|
else {
|
|
arg = PyUnicode_FromObject(arg);
|
|
if (!arg)
|
|
return 0;
|
|
output = PyUnicode_AsEncodedObject(arg,
|
|
Py_FileSystemDefaultEncoding,
|
|
"surrogateescape");
|
|
Py_DECREF(arg);
|
|
if (!output)
|
|
return 0;
|
|
if (!PyBytes_Check(output)) {
|
|
Py_DECREF(output);
|
|
PyErr_SetString(PyExc_TypeError, "encoder failed to return bytes");
|
|
return 0;
|
|
}
|
|
}
|
|
if (PyBytes_Check(output)) {
|
|
size = PyBytes_GET_SIZE(output);
|
|
data = PyBytes_AS_STRING(output);
|
|
}
|
|
else {
|
|
size = PyByteArray_GET_SIZE(output);
|
|
data = PyByteArray_AS_STRING(output);
|
|
}
|
|
if (size != strlen(data)) {
|
|
PyErr_SetString(PyExc_TypeError, "embedded NUL character");
|
|
Py_DECREF(output);
|
|
return 0;
|
|
}
|
|
*(PyObject**)addr = output;
|
|
return Py_CLEANUP_SUPPORTED;
|
|
}
|
|
|
|
|
|
char*
|
|
_PyUnicode_AsStringAndSize(PyObject *unicode, Py_ssize_t *psize)
|
|
{
|
|
PyObject *bytes;
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
bytes = _PyUnicode_AsDefaultEncodedString(unicode, NULL);
|
|
if (bytes == NULL)
|
|
return NULL;
|
|
if (psize != NULL)
|
|
*psize = PyBytes_GET_SIZE(bytes);
|
|
return PyBytes_AS_STRING(bytes);
|
|
}
|
|
|
|
char*
|
|
_PyUnicode_AsString(PyObject *unicode)
|
|
{
|
|
return _PyUnicode_AsStringAndSize(unicode, NULL);
|
|
}
|
|
|
|
Py_UNICODE *PyUnicode_AsUnicode(PyObject *unicode)
|
|
{
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
goto onError;
|
|
}
|
|
return PyUnicode_AS_UNICODE(unicode);
|
|
|
|
onError:
|
|
return NULL;
|
|
}
|
|
|
|
Py_ssize_t PyUnicode_GetSize(PyObject *unicode)
|
|
{
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
goto onError;
|
|
}
|
|
return PyUnicode_GET_SIZE(unicode);
|
|
|
|
onError:
|
|
return -1;
|
|
}
|
|
|
|
const char *PyUnicode_GetDefaultEncoding(void)
|
|
{
|
|
return unicode_default_encoding;
|
|
}
|
|
|
|
int PyUnicode_SetDefaultEncoding(const char *encoding)
|
|
{
|
|
if (strcmp(encoding, unicode_default_encoding) != 0) {
|
|
PyErr_Format(PyExc_ValueError,
|
|
"Can only set default encoding to %s",
|
|
unicode_default_encoding);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* error handling callback helper:
|
|
build arguments, call the callback and check the arguments,
|
|
if no exception occurred, 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, const char **inend, Py_ssize_t *startinpos,
|
|
Py_ssize_t *endinpos, PyObject **exceptionObject, const char **inptr,
|
|
PyUnicodeObject **output, Py_ssize_t *outpos, Py_UNICODE **outptr)
|
|
{
|
|
static char *argparse = "O!n;decoding error handler must return (str, int) tuple";
|
|
|
|
PyObject *restuple = NULL;
|
|
PyObject *repunicode = NULL;
|
|
Py_ssize_t outsize = PyUnicode_GET_SIZE(*output);
|
|
Py_ssize_t insize;
|
|
Py_ssize_t requiredsize;
|
|
Py_ssize_t newpos;
|
|
Py_UNICODE *repptr;
|
|
PyObject *inputobj = NULL;
|
|
Py_ssize_t repsize;
|
|
int res = -1;
|
|
|
|
if (*errorHandler == NULL) {
|
|
*errorHandler = PyCodec_LookupError(errors);
|
|
if (*errorHandler == NULL)
|
|
goto onError;
|
|
}
|
|
|
|
if (*exceptionObject == NULL) {
|
|
*exceptionObject = PyUnicodeDecodeError_Create(
|
|
encoding, *input, *inend-*input, *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_SetString(PyExc_TypeError, &argparse[4]);
|
|
goto onError;
|
|
}
|
|
if (!PyArg_ParseTuple(restuple, argparse, &PyUnicode_Type, &repunicode, &newpos))
|
|
goto onError;
|
|
|
|
/* Copy back the bytes variables, which might have been modified by the
|
|
callback */
|
|
inputobj = PyUnicodeDecodeError_GetObject(*exceptionObject);
|
|
if (!inputobj)
|
|
goto onError;
|
|
if (!PyBytes_Check(inputobj)) {
|
|
PyErr_Format(PyExc_TypeError, "exception attribute object must be bytes");
|
|
}
|
|
*input = PyBytes_AS_STRING(inputobj);
|
|
insize = PyBytes_GET_SIZE(inputobj);
|
|
*inend = *input + insize;
|
|
/* we can DECREF safely, as the exception has another reference,
|
|
so the object won't go away. */
|
|
Py_DECREF(inputobj);
|
|
|
|
if (newpos<0)
|
|
newpos = insize+newpos;
|
|
if (newpos<0 || newpos>insize) {
|
|
PyErr_Format(PyExc_IndexError, "position %zd 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. We encode conservatively and decode liberally. */
|
|
|
|
/* Three simple macros defining base-64. */
|
|
|
|
/* Is c a base-64 character? */
|
|
|
|
#define IS_BASE64(c) \
|
|
(((c) >= 'A' && (c) <= 'Z') || \
|
|
((c) >= 'a' && (c) <= 'z') || \
|
|
((c) >= '0' && (c) <= '9') || \
|
|
(c) == '+' || (c) == '/')
|
|
|
|
/* given that c is a base-64 character, what is its base-64 value? */
|
|
|
|
#define FROM_BASE64(c) \
|
|
(((c) >= 'A' && (c) <= 'Z') ? (c) - 'A' : \
|
|
((c) >= 'a' && (c) <= 'z') ? (c) - 'a' + 26 : \
|
|
((c) >= '0' && (c) <= '9') ? (c) - '0' + 52 : \
|
|
(c) == '+' ? 62 : 63)
|
|
|
|
/* What is the base-64 character of the bottom 6 bits of n? */
|
|
|
|
#define TO_BASE64(n) \
|
|
("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"[(n) & 0x3f])
|
|
|
|
/* DECODE_DIRECT: this byte encountered in a UTF-7 string should be
|
|
* decoded as itself. We are permissive on decoding; the only ASCII
|
|
* byte not decoding to itself is the + which begins a base64
|
|
* string. */
|
|
|
|
#define DECODE_DIRECT(c) \
|
|
((c) <= 127 && (c) != '+')
|
|
|
|
/* The UTF-7 encoder treats ASCII characters differently according to
|
|
* whether they are Set D, Set O, Whitespace, or special (i.e. none of
|
|
* the above). See RFC2152. This array identifies these different
|
|
* sets:
|
|
* 0 : "Set D"
|
|
* alphanumeric and '(),-./:?
|
|
* 1 : "Set O"
|
|
* !"#$%&*;<=>@[]^_`{|}
|
|
* 2 : "whitespace"
|
|
* ht nl cr sp
|
|
* 3 : special (must be base64 encoded)
|
|
* everything else (i.e. +\~ and non-printing codes 0-8 11-12 14-31 127)
|
|
*/
|
|
|
|
static
|
|
char utf7_category[128] = {
|
|
/* nul soh stx etx eot enq ack bel bs ht nl vt np cr so si */
|
|
3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 3, 3, 2, 3, 3,
|
|
/* dle dc1 dc2 dc3 dc4 nak syn etb can em sub esc fs gs rs us */
|
|
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
|
|
/* sp ! " # $ % & ' ( ) * + , - . / */
|
|
2, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 3, 0, 0, 0, 0,
|
|
/* 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0,
|
|
/* @ A B C D E F G H I J K L M N O */
|
|
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* P Q R S T U V W X Y Z [ \ ] ^ _ */
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 1, 1, 1,
|
|
/* ` a b c d e f g h i j k l m n o */
|
|
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* p q r s t u v w x y z { | } ~ del */
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 3, 3,
|
|
};
|
|
|
|
/* ENCODE_DIRECT: this character should be encoded as itself. The
|
|
* answer depends on whether we are encoding set O as itself, and also
|
|
* on whether we are encoding whitespace as itself. RFC2152 makes it
|
|
* clear that the answers to these questions vary between
|
|
* applications, so this code needs to be flexible. */
|
|
|
|
#define ENCODE_DIRECT(c, directO, directWS) \
|
|
((c) < 128 && (c) > 0 && \
|
|
((utf7_category[(c)] == 0) || \
|
|
(directWS && (utf7_category[(c)] == 2)) || \
|
|
(directO && (utf7_category[(c)] == 1))))
|
|
|
|
PyObject *PyUnicode_DecodeUTF7(const char *s,
|
|
Py_ssize_t size,
|
|
const char *errors)
|
|
{
|
|
return PyUnicode_DecodeUTF7Stateful(s, size, errors, NULL);
|
|
}
|
|
|
|
/* The decoder. The only state we preserve is our read position,
|
|
* i.e. how many characters we have consumed. So if we end in the
|
|
* middle of a shift sequence we have to back off the read position
|
|
* and the output to the beginning of the sequence, otherwise we lose
|
|
* all the shift state (seen bits, number of bits seen, high
|
|
* surrogate). */
|
|
|
|
PyObject *PyUnicode_DecodeUTF7Stateful(const char *s,
|
|
Py_ssize_t size,
|
|
const char *errors,
|
|
Py_ssize_t *consumed)
|
|
{
|
|
const char *starts = s;
|
|
Py_ssize_t startinpos;
|
|
Py_ssize_t endinpos;
|
|
Py_ssize_t outpos;
|
|
const char *e;
|
|
PyUnicodeObject *unicode;
|
|
Py_UNICODE *p;
|
|
const char *errmsg = "";
|
|
int inShift = 0;
|
|
Py_UNICODE *shiftOutStart;
|
|
unsigned int base64bits = 0;
|
|
unsigned long base64buffer = 0;
|
|
Py_UNICODE surrogate = 0;
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
|
|
unicode = _PyUnicode_New(size);
|
|
if (!unicode)
|
|
return NULL;
|
|
if (size == 0) {
|
|
if (consumed)
|
|
*consumed = 0;
|
|
return (PyObject *)unicode;
|
|
}
|
|
|
|
p = unicode->str;
|
|
shiftOutStart = p;
|
|
e = s + size;
|
|
|
|
while (s < e) {
|
|
Py_UNICODE ch;
|
|
restart:
|
|
ch = (unsigned char) *s;
|
|
|
|
if (inShift) { /* in a base-64 section */
|
|
if (IS_BASE64(ch)) { /* consume a base-64 character */
|
|
base64buffer = (base64buffer << 6) | FROM_BASE64(ch);
|
|
base64bits += 6;
|
|
s++;
|
|
if (base64bits >= 16) {
|
|
/* we have enough bits for a UTF-16 value */
|
|
Py_UNICODE outCh = (Py_UNICODE)
|
|
(base64buffer >> (base64bits-16));
|
|
base64bits -= 16;
|
|
base64buffer &= (1 << base64bits) - 1; /* clear high bits */
|
|
if (surrogate) {
|
|
/* expecting a second surrogate */
|
|
if (outCh >= 0xDC00 && outCh <= 0xDFFF) {
|
|
#ifdef Py_UNICODE_WIDE
|
|
*p++ = (((surrogate & 0x3FF)<<10)
|
|
| (outCh & 0x3FF)) + 0x10000;
|
|
#else
|
|
*p++ = surrogate;
|
|
*p++ = outCh;
|
|
#endif
|
|
surrogate = 0;
|
|
}
|
|
else {
|
|
surrogate = 0;
|
|
errmsg = "second surrogate missing";
|
|
goto utf7Error;
|
|
}
|
|
}
|
|
else if (outCh >= 0xD800 && outCh <= 0xDBFF) {
|
|
/* first surrogate */
|
|
surrogate = outCh;
|
|
}
|
|
else if (outCh >= 0xDC00 && outCh <= 0xDFFF) {
|
|
errmsg = "unexpected second surrogate";
|
|
goto utf7Error;
|
|
}
|
|
else {
|
|
*p++ = outCh;
|
|
}
|
|
}
|
|
}
|
|
else { /* now leaving a base-64 section */
|
|
inShift = 0;
|
|
s++;
|
|
if (surrogate) {
|
|
errmsg = "second surrogate missing at end of shift sequence";
|
|
goto utf7Error;
|
|
}
|
|
if (base64bits > 0) { /* left-over bits */
|
|
if (base64bits >= 6) {
|
|
/* We've seen at least one base-64 character */
|
|
errmsg = "partial character in shift sequence";
|
|
goto utf7Error;
|
|
}
|
|
else {
|
|
/* Some bits remain; they should be zero */
|
|
if (base64buffer != 0) {
|
|
errmsg = "non-zero padding bits in shift sequence";
|
|
goto utf7Error;
|
|
}
|
|
}
|
|
}
|
|
if (ch != '-') {
|
|
/* '-' is absorbed; other terminating
|
|
characters are preserved */
|
|
*p++ = ch;
|
|
}
|
|
}
|
|
}
|
|
else if ( ch == '+' ) {
|
|
startinpos = s-starts;
|
|
s++; /* consume '+' */
|
|
if (s < e && *s == '-') { /* '+-' encodes '+' */
|
|
s++;
|
|
*p++ = '+';
|
|
}
|
|
else { /* begin base64-encoded section */
|
|
inShift = 1;
|
|
shiftOutStart = p;
|
|
base64bits = 0;
|
|
}
|
|
}
|
|
else if (DECODE_DIRECT(ch)) { /* character decodes as itself */
|
|
*p++ = ch;
|
|
s++;
|
|
}
|
|
else {
|
|
startinpos = s-starts;
|
|
s++;
|
|
errmsg = "unexpected special character";
|
|
goto utf7Error;
|
|
}
|
|
continue;
|
|
utf7Error:
|
|
outpos = p-PyUnicode_AS_UNICODE(unicode);
|
|
endinpos = s-starts;
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"utf7", errmsg,
|
|
&starts, &e, &startinpos, &endinpos, &exc, &s,
|
|
&unicode, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
|
|
/* end of string */
|
|
|
|
if (inShift && !consumed) { /* in shift sequence, no more to follow */
|
|
/* if we're in an inconsistent state, that's an error */
|
|
if (surrogate ||
|
|
(base64bits >= 6) ||
|
|
(base64bits > 0 && base64buffer != 0)) {
|
|
outpos = p-PyUnicode_AS_UNICODE(unicode);
|
|
endinpos = size;
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"utf7", "unterminated shift sequence",
|
|
&starts, &e, &startinpos, &endinpos, &exc, &s,
|
|
&unicode, &outpos, &p))
|
|
goto onError;
|
|
if (s < e)
|
|
goto restart;
|
|
}
|
|
}
|
|
|
|
/* return state */
|
|
if (consumed) {
|
|
if (inShift) {
|
|
p = shiftOutStart; /* back off output */
|
|
*consumed = startinpos;
|
|
}
|
|
else {
|
|
*consumed = s-starts;
|
|
}
|
|
}
|
|
|
|
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,
|
|
Py_ssize_t size,
|
|
int base64SetO,
|
|
int base64WhiteSpace,
|
|
const char *errors)
|
|
{
|
|
PyObject *v;
|
|
/* It might be possible to tighten this worst case */
|
|
Py_ssize_t allocated = 8 * size;
|
|
int inShift = 0;
|
|
Py_ssize_t i = 0;
|
|
unsigned int base64bits = 0;
|
|
unsigned long base64buffer = 0;
|
|
char * out;
|
|
char * start;
|
|
|
|
if (size == 0)
|
|
return PyBytes_FromStringAndSize(NULL, 0);
|
|
|
|
if (allocated / 8 != size)
|
|
return PyErr_NoMemory();
|
|
|
|
v = PyBytes_FromStringAndSize(NULL, allocated);
|
|
if (v == NULL)
|
|
return NULL;
|
|
|
|
start = out = PyBytes_AS_STRING(v);
|
|
for (;i < size; ++i) {
|
|
Py_UNICODE ch = s[i];
|
|
|
|
if (inShift) {
|
|
if (ENCODE_DIRECT(ch, !base64SetO, !base64WhiteSpace)) {
|
|
/* shifting out */
|
|
if (base64bits) { /* output remaining bits */
|
|
*out++ = TO_BASE64(base64buffer << (6-base64bits));
|
|
base64buffer = 0;
|
|
base64bits = 0;
|
|
}
|
|
inShift = 0;
|
|
/* Characters not in the BASE64 set implicitly unshift the sequence
|
|
so no '-' is required, except if the character is itself a '-' */
|
|
if (IS_BASE64(ch) || ch == '-') {
|
|
*out++ = '-';
|
|
}
|
|
*out++ = (char) ch;
|
|
}
|
|
else {
|
|
goto encode_char;
|
|
}
|
|
}
|
|
else { /* not in a shift sequence */
|
|
if (ch == '+') {
|
|
*out++ = '+';
|
|
*out++ = '-';
|
|
}
|
|
else if (ENCODE_DIRECT(ch, !base64SetO, !base64WhiteSpace)) {
|
|
*out++ = (char) ch;
|
|
}
|
|
else {
|
|
*out++ = '+';
|
|
inShift = 1;
|
|
goto encode_char;
|
|
}
|
|
}
|
|
continue;
|
|
encode_char:
|
|
#ifdef Py_UNICODE_WIDE
|
|
if (ch >= 0x10000) {
|
|
/* code first surrogate */
|
|
base64bits += 16;
|
|
base64buffer = (base64buffer << 16) | 0xd800 | ((ch-0x10000) >> 10);
|
|
while (base64bits >= 6) {
|
|
*out++ = TO_BASE64(base64buffer >> (base64bits-6));
|
|
base64bits -= 6;
|
|
}
|
|
/* prepare second surrogate */
|
|
ch = 0xDC00 | ((ch-0x10000) & 0x3FF);
|
|
}
|
|
#endif
|
|
base64bits += 16;
|
|
base64buffer = (base64buffer << 16) | ch;
|
|
while (base64bits >= 6) {
|
|
*out++ = TO_BASE64(base64buffer >> (base64bits-6));
|
|
base64bits -= 6;
|
|
}
|
|
}
|
|
if (base64bits)
|
|
*out++= TO_BASE64(base64buffer << (6-base64bits) );
|
|
if (inShift)
|
|
*out++ = '-';
|
|
if (_PyBytes_Resize(&v, out - start) < 0)
|
|
return NULL;
|
|
return v;
|
|
}
|
|
|
|
#undef IS_BASE64
|
|
#undef FROM_BASE64
|
|
#undef TO_BASE64
|
|
#undef DECODE_DIRECT
|
|
#undef ENCODE_DIRECT
|
|
|
|
/* --- 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,
|
|
Py_ssize_t size,
|
|
const char *errors)
|
|
{
|
|
return PyUnicode_DecodeUTF8Stateful(s, size, errors, NULL);
|
|
}
|
|
|
|
/* Mask to check or force alignment of a pointer to C 'long' boundaries */
|
|
#define LONG_PTR_MASK (size_t) (SIZEOF_LONG - 1)
|
|
|
|
/* Mask to quickly check whether a C 'long' contains a
|
|
non-ASCII, UTF8-encoded char. */
|
|
#if (SIZEOF_LONG == 8)
|
|
# define ASCII_CHAR_MASK 0x8080808080808080L
|
|
#elif (SIZEOF_LONG == 4)
|
|
# define ASCII_CHAR_MASK 0x80808080L
|
|
#else
|
|
# error C 'long' size should be either 4 or 8!
|
|
#endif
|
|
|
|
PyObject *PyUnicode_DecodeUTF8Stateful(const char *s,
|
|
Py_ssize_t size,
|
|
const char *errors,
|
|
Py_ssize_t *consumed)
|
|
{
|
|
const char *starts = s;
|
|
int n;
|
|
Py_ssize_t startinpos;
|
|
Py_ssize_t endinpos;
|
|
Py_ssize_t outpos;
|
|
const char *e, *aligned_end;
|
|
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) {
|
|
if (consumed)
|
|
*consumed = 0;
|
|
return (PyObject *)unicode;
|
|
}
|
|
|
|
/* Unpack UTF-8 encoded data */
|
|
p = unicode->str;
|
|
e = s + size;
|
|
aligned_end = (const char *) ((size_t) e & ~LONG_PTR_MASK);
|
|
|
|
while (s < e) {
|
|
Py_UCS4 ch = (unsigned char)*s;
|
|
|
|
if (ch < 0x80) {
|
|
/* Fast path for runs of ASCII characters. Given that common UTF-8
|
|
input will consist of an overwhelming majority of ASCII
|
|
characters, we try to optimize for this case by checking
|
|
as many characters as a C 'long' can contain.
|
|
First, check if we can do an aligned read, as most CPUs have
|
|
a penalty for unaligned reads.
|
|
*/
|
|
if (!((size_t) s & LONG_PTR_MASK)) {
|
|
/* Help register allocation */
|
|
register const char *_s = s;
|
|
register Py_UNICODE *_p = p;
|
|
while (_s < aligned_end) {
|
|
/* Read a whole long at a time (either 4 or 8 bytes),
|
|
and do a fast unrolled copy if it only contains ASCII
|
|
characters. */
|
|
unsigned long data = *(unsigned long *) _s;
|
|
if (data & ASCII_CHAR_MASK)
|
|
break;
|
|
_p[0] = (unsigned char) _s[0];
|
|
_p[1] = (unsigned char) _s[1];
|
|
_p[2] = (unsigned char) _s[2];
|
|
_p[3] = (unsigned char) _s[3];
|
|
#if (SIZEOF_LONG == 8)
|
|
_p[4] = (unsigned char) _s[4];
|
|
_p[5] = (unsigned char) _s[5];
|
|
_p[6] = (unsigned char) _s[6];
|
|
_p[7] = (unsigned char) _s[7];
|
|
#endif
|
|
_s += SIZEOF_LONG;
|
|
_p += SIZEOF_LONG;
|
|
}
|
|
s = _s;
|
|
p = _p;
|
|
if (s == e)
|
|
break;
|
|
ch = (unsigned char)*s;
|
|
}
|
|
}
|
|
|
|
if (ch < 0x80) {
|
|
*p++ = (Py_UNICODE)ch;
|
|
s++;
|
|
continue;
|
|
}
|
|
|
|
n = utf8_code_length[ch];
|
|
|
|
if (s + n > e) {
|
|
if (consumed)
|
|
break;
|
|
else {
|
|
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 || (ch >= 0xd800 && ch <= 0xDFFF)) {
|
|
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, &e, &startinpos, &endinpos, &exc, &s,
|
|
&unicode, &outpos, &p))
|
|
goto onError;
|
|
aligned_end = (const char *) ((size_t) e & ~LONG_PTR_MASK);
|
|
}
|
|
if (consumed)
|
|
*consumed = s-starts;
|
|
|
|
/* 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;
|
|
}
|
|
|
|
#undef ASCII_CHAR_MASK
|
|
|
|
|
|
/* 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,
|
|
Py_ssize_t size,
|
|
const char *errors)
|
|
{
|
|
#define MAX_SHORT_UNICHARS 300 /* largest size we'll do on the stack */
|
|
|
|
Py_ssize_t i; /* index into s of next input byte */
|
|
PyObject *result; /* result string object */
|
|
char *p; /* next free byte in output buffer */
|
|
Py_ssize_t nallocated; /* number of result bytes allocated */
|
|
Py_ssize_t nneeded; /* number of result bytes needed */
|
|
char stackbuf[MAX_SHORT_UNICHARS * 4];
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
|
|
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);
|
|
result = 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();
|
|
result = PyBytes_FromStringAndSize(NULL, nallocated);
|
|
if (result == NULL)
|
|
return NULL;
|
|
p = PyBytes_AS_STRING(result);
|
|
}
|
|
|
|
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) {
|
|
#ifndef Py_UNICODE_WIDE
|
|
/* 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 */
|
|
}
|
|
#endif
|
|
if (ch >= 0xd800 && ch <= 0xdfff) {
|
|
Py_ssize_t newpos;
|
|
PyObject *rep;
|
|
char *prep;
|
|
int k;
|
|
rep = unicode_encode_call_errorhandler
|
|
(errors, &errorHandler, "utf-8", "surrogates not allowed",
|
|
s, size, &exc, i-1, i, &newpos);
|
|
if (!rep)
|
|
goto error;
|
|
/* Implementation limitations: only support error handler that return
|
|
bytes, and only support up to four replacement bytes. */
|
|
if (!PyBytes_Check(rep)) {
|
|
PyErr_SetString(PyExc_TypeError, "error handler should have returned bytes");
|
|
Py_DECREF(rep);
|
|
goto error;
|
|
}
|
|
if (PyBytes_Size(rep) > 4) {
|
|
PyErr_SetString(PyExc_TypeError, "error handler returned too many bytes");
|
|
Py_DECREF(rep);
|
|
goto error;
|
|
}
|
|
prep = PyBytes_AsString(rep);
|
|
for(k = PyBytes_Size(rep); k > 0; k--)
|
|
*p++ = *prep++;
|
|
Py_DECREF(rep);
|
|
continue;
|
|
|
|
}
|
|
*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 (result == NULL) {
|
|
/* This was stack allocated. */
|
|
nneeded = p - stackbuf;
|
|
assert(nneeded <= nallocated);
|
|
result = PyBytes_FromStringAndSize(stackbuf, nneeded);
|
|
}
|
|
else {
|
|
/* Cut back to size actually needed. */
|
|
nneeded = p - PyBytes_AS_STRING(result);
|
|
assert(nneeded <= nallocated);
|
|
_PyBytes_Resize(&result, nneeded);
|
|
}
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
return result;
|
|
error:
|
|
Py_XDECREF(errorHandler);
|
|
Py_XDECREF(exc);
|
|
Py_XDECREF(result);
|
|
return NULL;
|
|
|
|
#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-32 Codec ------------------------------------------------------- */
|
|
|
|
PyObject *
|
|
PyUnicode_DecodeUTF32(const char *s,
|
|
Py_ssize_t size,
|
|
const char *errors,
|
|
int *byteorder)
|
|
{
|
|
return PyUnicode_DecodeUTF32Stateful(s, size, errors, byteorder, NULL);
|
|
}
|
|
|
|
PyObject *
|
|
PyUnicode_DecodeUTF32Stateful(const char *s,
|
|
Py_ssize_t size,
|
|
const char *errors,
|
|
int *byteorder,
|
|
Py_ssize_t *consumed)
|
|
{
|
|
const char *starts = s;
|
|
Py_ssize_t startinpos;
|
|
Py_ssize_t endinpos;
|
|
Py_ssize_t outpos;
|
|
PyUnicodeObject *unicode;
|
|
Py_UNICODE *p;
|
|
#ifndef Py_UNICODE_WIDE
|
|
int i, pairs;
|
|
#else
|
|
const int pairs = 0;
|
|
#endif
|
|
const unsigned char *q, *e;
|
|
int bo = 0; /* assume native ordering by default */
|
|
const char *errmsg = "";
|
|
/* Offsets from q for retrieving bytes in the right order. */
|
|
#ifdef BYTEORDER_IS_LITTLE_ENDIAN
|
|
int iorder[] = {0, 1, 2, 3};
|
|
#else
|
|
int iorder[] = {3, 2, 1, 0};
|
|
#endif
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
/* On narrow builds we split characters outside the BMP into two
|
|
codepoints => count how much extra space we need. */
|
|
#ifndef Py_UNICODE_WIDE
|
|
for (i = pairs = 0; i < size/4; i++)
|
|
if (((Py_UCS4 *)s)[i] >= 0x10000)
|
|
pairs++;
|
|
#endif
|
|
|
|
/* This might be one to much, because of a BOM */
|
|
unicode = _PyUnicode_New((size+3)/4+pairs);
|
|
if (!unicode)
|
|
return NULL;
|
|
if (size == 0)
|
|
return (PyObject *)unicode;
|
|
|
|
/* Unpack UTF-32 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) {
|
|
if (size >= 4) {
|
|
const Py_UCS4 bom = (q[iorder[3]] << 24) | (q[iorder[2]] << 16) |
|
|
(q[iorder[1]] << 8) | q[iorder[0]];
|
|
#ifdef BYTEORDER_IS_LITTLE_ENDIAN
|
|
if (bom == 0x0000FEFF) {
|
|
q += 4;
|
|
bo = -1;
|
|
}
|
|
else if (bom == 0xFFFE0000) {
|
|
q += 4;
|
|
bo = 1;
|
|
}
|
|
#else
|
|
if (bom == 0x0000FEFF) {
|
|
q += 4;
|
|
bo = 1;
|
|
}
|
|
else if (bom == 0xFFFE0000) {
|
|
q += 4;
|
|
bo = -1;
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if (bo == -1) {
|
|
/* force LE */
|
|
iorder[0] = 0;
|
|
iorder[1] = 1;
|
|
iorder[2] = 2;
|
|
iorder[3] = 3;
|
|
}
|
|
else if (bo == 1) {
|
|
/* force BE */
|
|
iorder[0] = 3;
|
|
iorder[1] = 2;
|
|
iorder[2] = 1;
|
|
iorder[3] = 0;
|
|
}
|
|
|
|
while (q < e) {
|
|
Py_UCS4 ch;
|
|
/* remaining bytes at the end? (size should be divisible by 4) */
|
|
if (e-q<4) {
|
|
if (consumed)
|
|
break;
|
|
errmsg = "truncated data";
|
|
startinpos = ((const char *)q)-starts;
|
|
endinpos = ((const char *)e)-starts;
|
|
goto utf32Error;
|
|
/* The remaining input chars are ignored if the callback
|
|
chooses to skip the input */
|
|
}
|
|
ch = (q[iorder[3]] << 24) | (q[iorder[2]] << 16) |
|
|
(q[iorder[1]] << 8) | q[iorder[0]];
|
|
|
|
if (ch >= 0x110000)
|
|
{
|
|
errmsg = "codepoint not in range(0x110000)";
|
|
startinpos = ((const char *)q)-starts;
|
|
endinpos = startinpos+4;
|
|
goto utf32Error;
|
|
}
|
|
#ifndef Py_UNICODE_WIDE
|
|
if (ch >= 0x10000)
|
|
{
|
|
*p++ = 0xD800 | ((ch-0x10000) >> 10);
|
|
*p++ = 0xDC00 | ((ch-0x10000) & 0x3FF);
|
|
}
|
|
else
|
|
#endif
|
|
*p++ = ch;
|
|
q += 4;
|
|
continue;
|
|
utf32Error:
|
|
outpos = p-PyUnicode_AS_UNICODE(unicode);
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"utf32", errmsg,
|
|
&starts, (const char **)&e, &startinpos, &endinpos, &exc, (const char **)&q,
|
|
&unicode, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
|
|
if (byteorder)
|
|
*byteorder = bo;
|
|
|
|
if (consumed)
|
|
*consumed = (const char *)q-starts;
|
|
|
|
/* 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_EncodeUTF32(const Py_UNICODE *s,
|
|
Py_ssize_t size,
|
|
const char *errors,
|
|
int byteorder)
|
|
{
|
|
PyObject *v;
|
|
unsigned char *p;
|
|
Py_ssize_t nsize, bytesize;
|
|
#ifndef Py_UNICODE_WIDE
|
|
Py_ssize_t 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 iorder[] = {0, 1, 2, 3};
|
|
#else
|
|
int iorder[] = {3, 2, 1, 0};
|
|
#endif
|
|
|
|
#define STORECHAR(CH) \
|
|
do { \
|
|
p[iorder[3]] = ((CH) >> 24) & 0xff; \
|
|
p[iorder[2]] = ((CH) >> 16) & 0xff; \
|
|
p[iorder[1]] = ((CH) >> 8) & 0xff; \
|
|
p[iorder[0]] = (CH) & 0xff; \
|
|
p += 4; \
|
|
} while(0)
|
|
|
|
/* In narrow builds we can output surrogate pairs as one codepoint,
|
|
so we need less space. */
|
|
#ifndef Py_UNICODE_WIDE
|
|
for (i = pairs = 0; i < size-1; i++)
|
|
if (0xD800 <= s[i] && s[i] <= 0xDBFF &&
|
|
0xDC00 <= s[i+1] && s[i+1] <= 0xDFFF)
|
|
pairs++;
|
|
#endif
|
|
nsize = (size - pairs + (byteorder == 0));
|
|
bytesize = nsize * 4;
|
|
if (bytesize / 4 != nsize)
|
|
return PyErr_NoMemory();
|
|
v = PyBytes_FromStringAndSize(NULL, bytesize);
|
|
if (v == NULL)
|
|
return NULL;
|
|
|
|
p = (unsigned char *)PyBytes_AS_STRING(v);
|
|
if (byteorder == 0)
|
|
STORECHAR(0xFEFF);
|
|
if (size == 0)
|
|
goto done;
|
|
|
|
if (byteorder == -1) {
|
|
/* force LE */
|
|
iorder[0] = 0;
|
|
iorder[1] = 1;
|
|
iorder[2] = 2;
|
|
iorder[3] = 3;
|
|
}
|
|
else if (byteorder == 1) {
|
|
/* force BE */
|
|
iorder[0] = 3;
|
|
iorder[1] = 2;
|
|
iorder[2] = 1;
|
|
iorder[3] = 0;
|
|
}
|
|
|
|
while (size-- > 0) {
|
|
Py_UCS4 ch = *s++;
|
|
#ifndef Py_UNICODE_WIDE
|
|
if (0xD800 <= ch && ch <= 0xDBFF && size > 0) {
|
|
Py_UCS4 ch2 = *s;
|
|
if (0xDC00 <= ch2 && ch2 <= 0xDFFF) {
|
|
ch = (((ch & 0x3FF)<<10) | (ch2 & 0x3FF)) + 0x10000;
|
|
s++;
|
|
size--;
|
|
}
|
|
}
|
|
#endif
|
|
STORECHAR(ch);
|
|
}
|
|
|
|
done:
|
|
return v;
|
|
#undef STORECHAR
|
|
}
|
|
|
|
PyObject *PyUnicode_AsUTF32String(PyObject *unicode)
|
|
{
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
return PyUnicode_EncodeUTF32(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode),
|
|
NULL,
|
|
0);
|
|
}
|
|
|
|
/* --- UTF-16 Codec ------------------------------------------------------- */
|
|
|
|
PyObject *
|
|
PyUnicode_DecodeUTF16(const char *s,
|
|
Py_ssize_t size,
|
|
const char *errors,
|
|
int *byteorder)
|
|
{
|
|
return PyUnicode_DecodeUTF16Stateful(s, size, errors, byteorder, NULL);
|
|
}
|
|
|
|
/* Two masks for fast checking of whether a C 'long' may contain
|
|
UTF16-encoded surrogate characters. This is an efficient heuristic,
|
|
assuming that non-surrogate characters with a code point >= 0x8000 are
|
|
rare in most input.
|
|
FAST_CHAR_MASK is used when the input is in native byte ordering,
|
|
SWAPPED_FAST_CHAR_MASK when the input is in byteswapped ordering.
|
|
*/
|
|
#if (SIZEOF_LONG == 8)
|
|
# define FAST_CHAR_MASK 0x8000800080008000L
|
|
# define SWAPPED_FAST_CHAR_MASK 0x0080008000800080L
|
|
#elif (SIZEOF_LONG == 4)
|
|
# define FAST_CHAR_MASK 0x80008000L
|
|
# define SWAPPED_FAST_CHAR_MASK 0x00800080L
|
|
#else
|
|
# error C 'long' size should be either 4 or 8!
|
|
#endif
|
|
|
|
PyObject *
|
|
PyUnicode_DecodeUTF16Stateful(const char *s,
|
|
Py_ssize_t size,
|
|
const char *errors,
|
|
int *byteorder,
|
|
Py_ssize_t *consumed)
|
|
{
|
|
const char *starts = s;
|
|
Py_ssize_t startinpos;
|
|
Py_ssize_t endinpos;
|
|
Py_ssize_t outpos;
|
|
PyUnicodeObject *unicode;
|
|
Py_UNICODE *p;
|
|
const unsigned char *q, *e, *aligned_end;
|
|
int bo = 0; /* assume native ordering by default */
|
|
int native_ordering = 0;
|
|
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 - 1;
|
|
|
|
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) {
|
|
if (size >= 2) {
|
|
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;
|
|
}
|
|
#ifdef BYTEORDER_IS_LITTLE_ENDIAN
|
|
native_ordering = ilo < ihi;
|
|
#else
|
|
native_ordering = ilo > ihi;
|
|
#endif
|
|
|
|
aligned_end = (const unsigned char *) ((size_t) e & ~LONG_PTR_MASK);
|
|
while (q < e) {
|
|
Py_UNICODE ch;
|
|
/* First check for possible aligned read of a C 'long'. Unaligned
|
|
reads are more expensive, better to defer to another iteration. */
|
|
if (!((size_t) q & LONG_PTR_MASK)) {
|
|
/* Fast path for runs of non-surrogate chars. */
|
|
register const unsigned char *_q = q;
|
|
Py_UNICODE *_p = p;
|
|
if (native_ordering) {
|
|
/* Native ordering is simple: as long as the input cannot
|
|
possibly contain a surrogate char, do an unrolled copy
|
|
of several 16-bit code points to the target object.
|
|
The non-surrogate check is done on several input bytes
|
|
at a time (as many as a C 'long' can contain). */
|
|
while (_q < aligned_end) {
|
|
unsigned long data = * (unsigned long *) _q;
|
|
if (data & FAST_CHAR_MASK)
|
|
break;
|
|
_p[0] = ((unsigned short *) _q)[0];
|
|
_p[1] = ((unsigned short *) _q)[1];
|
|
#if (SIZEOF_LONG == 8)
|
|
_p[2] = ((unsigned short *) _q)[2];
|
|
_p[3] = ((unsigned short *) _q)[3];
|
|
#endif
|
|
_q += SIZEOF_LONG;
|
|
_p += SIZEOF_LONG / 2;
|
|
}
|
|
}
|
|
else {
|
|
/* Byteswapped ordering is similar, but we must decompose
|
|
the copy bytewise, and take care of zero'ing out the
|
|
upper bytes if the target object is in 32-bit units
|
|
(that is, in UCS-4 builds). */
|
|
while (_q < aligned_end) {
|
|
unsigned long data = * (unsigned long *) _q;
|
|
if (data & SWAPPED_FAST_CHAR_MASK)
|
|
break;
|
|
/* Zero upper bytes in UCS-4 builds */
|
|
#if (Py_UNICODE_SIZE > 2)
|
|
_p[0] = 0;
|
|
_p[1] = 0;
|
|
#if (SIZEOF_LONG == 8)
|
|
_p[2] = 0;
|
|
_p[3] = 0;
|
|
#endif
|
|
#endif
|
|
/* Issue #4916; UCS-4 builds on big endian machines must
|
|
fill the two last bytes of each 4-byte unit. */
|
|
#if (!defined(BYTEORDER_IS_LITTLE_ENDIAN) && Py_UNICODE_SIZE > 2)
|
|
# define OFF 2
|
|
#else
|
|
# define OFF 0
|
|
#endif
|
|
((unsigned char *) _p)[OFF + 1] = _q[0];
|
|
((unsigned char *) _p)[OFF + 0] = _q[1];
|
|
((unsigned char *) _p)[OFF + 1 + Py_UNICODE_SIZE] = _q[2];
|
|
((unsigned char *) _p)[OFF + 0 + Py_UNICODE_SIZE] = _q[3];
|
|
#if (SIZEOF_LONG == 8)
|
|
((unsigned char *) _p)[OFF + 1 + 2 * Py_UNICODE_SIZE] = _q[4];
|
|
((unsigned char *) _p)[OFF + 0 + 2 * Py_UNICODE_SIZE] = _q[5];
|
|
((unsigned char *) _p)[OFF + 1 + 3 * Py_UNICODE_SIZE] = _q[6];
|
|
((unsigned char *) _p)[OFF + 0 + 3 * Py_UNICODE_SIZE] = _q[7];
|
|
#endif
|
|
#undef OFF
|
|
_q += SIZEOF_LONG;
|
|
_p += SIZEOF_LONG / 2;
|
|
}
|
|
}
|
|
p = _p;
|
|
q = _q;
|
|
if (q >= e)
|
|
break;
|
|
}
|
|
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) + 1 - 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,
|
|
(const char **)&e,
|
|
&startinpos,
|
|
&endinpos,
|
|
&exc,
|
|
(const char **)&q,
|
|
&unicode,
|
|
&outpos,
|
|
&p))
|
|
goto onError;
|
|
}
|
|
/* remaining byte at the end? (size should be even) */
|
|
if (e == q) {
|
|
if (!consumed) {
|
|
errmsg = "truncated data";
|
|
startinpos = ((const char *)q) - starts;
|
|
endinpos = ((const char *)e) + 1 - starts;
|
|
outpos = p - PyUnicode_AS_UNICODE(unicode);
|
|
if (unicode_decode_call_errorhandler(
|
|
errors,
|
|
&errorHandler,
|
|
"utf16", errmsg,
|
|
&starts,
|
|
(const char **)&e,
|
|
&startinpos,
|
|
&endinpos,
|
|
&exc,
|
|
(const char **)&q,
|
|
&unicode,
|
|
&outpos,
|
|
&p))
|
|
goto onError;
|
|
/* The remaining input chars are ignored if the callback
|
|
chooses to skip the input */
|
|
}
|
|
}
|
|
|
|
if (byteorder)
|
|
*byteorder = bo;
|
|
|
|
if (consumed)
|
|
*consumed = (const char *)q-starts;
|
|
|
|
/* 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;
|
|
}
|
|
|
|
#undef FAST_CHAR_MASK
|
|
#undef SWAPPED_FAST_CHAR_MASK
|
|
|
|
PyObject *
|
|
PyUnicode_EncodeUTF16(const Py_UNICODE *s,
|
|
Py_ssize_t size,
|
|
const char *errors,
|
|
int byteorder)
|
|
{
|
|
PyObject *v;
|
|
unsigned char *p;
|
|
Py_ssize_t nsize, bytesize;
|
|
#ifdef Py_UNICODE_WIDE
|
|
Py_ssize_t 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
|
|
/* 2 * (size + pairs + (byteorder == 0)) */
|
|
if (size > PY_SSIZE_T_MAX ||
|
|
size > PY_SSIZE_T_MAX - pairs - (byteorder == 0))
|
|
return PyErr_NoMemory();
|
|
nsize = size + pairs + (byteorder == 0);
|
|
bytesize = nsize * 2;
|
|
if (bytesize / 2 != nsize)
|
|
return PyErr_NoMemory();
|
|
v = PyBytes_FromStringAndSize(NULL, bytesize);
|
|
if (v == NULL)
|
|
return NULL;
|
|
|
|
p = (unsigned char *)PyBytes_AS_STRING(v);
|
|
if (byteorder == 0)
|
|
STORECHAR(0xFEFF);
|
|
if (size == 0)
|
|
goto done;
|
|
|
|
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);
|
|
}
|
|
|
|
done:
|
|
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,
|
|
Py_ssize_t size,
|
|
const char *errors)
|
|
{
|
|
const char *starts = s;
|
|
Py_ssize_t startinpos;
|
|
Py_ssize_t endinpos;
|
|
Py_ssize_t 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++;
|
|
c = *s++;
|
|
if (s > end)
|
|
c = '\0'; /* Invalid after \ */
|
|
switch (c) {
|
|
|
|
/* \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 (s < end && '0' <= *s && *s <= '7') {
|
|
x = (x<<3) + *s++ - '0';
|
|
if (s < end && '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, &end, &startinpos, &endinpos, &exc, &s,
|
|
&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, &end, &startinpos, &endinpos, &exc, &s,
|
|
&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, &end, &startinpos, &endinpos, &exc, &s,
|
|
&v, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
break;
|
|
|
|
/* \N{name} */
|
|
case 'N':
|
|
message = "malformed \\N character escape";
|
|
if (ucnhash_CAPI == NULL) {
|
|
/* load the unicode data module */
|
|
ucnhash_CAPI = (_PyUnicode_Name_CAPI *)PyCapsule_Import(PyUnicodeData_CAPSULE_NAME, 1);
|
|
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(NULL, start, (int)(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, &end, &startinpos, &endinpos, &exc, &s,
|
|
&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, &end, &startinpos, &endinpos, &exc, &s,
|
|
&v, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
else {
|
|
*p++ = '\\';
|
|
*p++ = (unsigned char)s[-1];
|
|
}
|
|
break;
|
|
}
|
|
nextByte:
|
|
;
|
|
}
|
|
if (_PyUnicode_Resize(&v, 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(v);
|
|
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.
|
|
|
|
*/
|
|
|
|
Py_LOCAL_INLINE(const Py_UNICODE *) findchar(const Py_UNICODE *s,
|
|
Py_ssize_t size,
|
|
Py_UNICODE ch)
|
|
{
|
|
/* like wcschr, but doesn't stop at NULL characters */
|
|
|
|
while (size-- > 0) {
|
|
if (*s == ch)
|
|
return s;
|
|
s++;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static const char *hexdigits = "0123456789abcdef";
|
|
|
|
PyObject *PyUnicode_EncodeUnicodeEscape(const Py_UNICODE *s,
|
|
Py_ssize_t size)
|
|
{
|
|
PyObject *repr;
|
|
char *p;
|
|
|
|
#ifdef Py_UNICODE_WIDE
|
|
const Py_ssize_t expandsize = 10;
|
|
#else
|
|
const Py_ssize_t expandsize = 6;
|
|
#endif
|
|
|
|
/* XXX(nnorwitz): rather than over-allocating, it would be
|
|
better to choose a different scheme. Perhaps scan the
|
|
first N-chars of the string and allocate based on that size.
|
|
*/
|
|
/* Initial allocation is based on the longest-possible unichr
|
|
escape.
|
|
|
|
In wide (UTF-32) builds '\U00xxxxxx' is 10 chars per source
|
|
unichr, so in this case it's the longest unichr escape. In
|
|
narrow (UTF-16) builds this is five chars per source unichr
|
|
since there are two unichrs in the surrogate pair, so in narrow
|
|
(UTF-16) builds it's not the longest unichr escape.
|
|
|
|
In wide or narrow builds '\uxxxx' is 6 chars per source unichr,
|
|
so in the narrow (UTF-16) build case it's the longest unichr
|
|
escape.
|
|
*/
|
|
|
|
if (size == 0)
|
|
return PyBytes_FromStringAndSize(NULL, 0);
|
|
|
|
if (size > (PY_SSIZE_T_MAX - 2 - 1) / expandsize)
|
|
return PyErr_NoMemory();
|
|
|
|
repr = PyBytes_FromStringAndSize(NULL,
|
|
2
|
|
+ expandsize*size
|
|
+ 1);
|
|
if (repr == NULL)
|
|
return NULL;
|
|
|
|
p = PyBytes_AS_STRING(repr);
|
|
|
|
while (size-- > 0) {
|
|
Py_UNICODE ch = *s++;
|
|
|
|
/* Escape backslashes */
|
|
if (ch == '\\') {
|
|
*p++ = '\\';
|
|
*p++ = (char) ch;
|
|
continue;
|
|
}
|
|
|
|
#ifdef Py_UNICODE_WIDE
|
|
/* Map 21-bit characters to '\U00xxxxxx' */
|
|
else if (ch >= 0x10000) {
|
|
*p++ = '\\';
|
|
*p++ = 'U';
|
|
*p++ = hexdigits[(ch >> 28) & 0x0000000F];
|
|
*p++ = hexdigits[(ch >> 24) & 0x0000000F];
|
|
*p++ = hexdigits[(ch >> 20) & 0x0000000F];
|
|
*p++ = hexdigits[(ch >> 16) & 0x0000000F];
|
|
*p++ = hexdigits[(ch >> 12) & 0x0000000F];
|
|
*p++ = hexdigits[(ch >> 8) & 0x0000000F];
|
|
*p++ = hexdigits[(ch >> 4) & 0x0000000F];
|
|
*p++ = hexdigits[ch & 0x0000000F];
|
|
continue;
|
|
}
|
|
#else
|
|
/* Map UTF-16 surrogate pairs to '\U00xxxxxx' */
|
|
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++ = hexdigits[(ucs >> 28) & 0x0000000F];
|
|
*p++ = hexdigits[(ucs >> 24) & 0x0000000F];
|
|
*p++ = hexdigits[(ucs >> 20) & 0x0000000F];
|
|
*p++ = hexdigits[(ucs >> 16) & 0x0000000F];
|
|
*p++ = hexdigits[(ucs >> 12) & 0x0000000F];
|
|
*p++ = hexdigits[(ucs >> 8) & 0x0000000F];
|
|
*p++ = hexdigits[(ucs >> 4) & 0x0000000F];
|
|
*p++ = hexdigits[ucs & 0x0000000F];
|
|
continue;
|
|
}
|
|
/* Fall through: isolated surrogates are copied as-is */
|
|
s--;
|
|
size++;
|
|
}
|
|
#endif
|
|
|
|
/* Map 16-bit characters to '\uxxxx' */
|
|
if (ch >= 256) {
|
|
*p++ = '\\';
|
|
*p++ = 'u';
|
|
*p++ = hexdigits[(ch >> 12) & 0x000F];
|
|
*p++ = hexdigits[(ch >> 8) & 0x000F];
|
|
*p++ = hexdigits[(ch >> 4) & 0x000F];
|
|
*p++ = hexdigits[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++ = hexdigits[(ch >> 4) & 0x000F];
|
|
*p++ = hexdigits[ch & 0x000F];
|
|
}
|
|
|
|
/* Copy everything else as-is */
|
|
else
|
|
*p++ = (char) ch;
|
|
}
|
|
|
|
assert(p - PyBytes_AS_STRING(repr) > 0);
|
|
if (_PyBytes_Resize(&repr, p - PyBytes_AS_STRING(repr)) < 0)
|
|
return NULL;
|
|
return repr;
|
|
}
|
|
|
|
PyObject *PyUnicode_AsUnicodeEscapeString(PyObject *unicode)
|
|
{
|
|
PyObject *s;
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
s = PyUnicode_EncodeUnicodeEscape(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode));
|
|
return s;
|
|
}
|
|
|
|
/* --- Raw Unicode Escape Codec ------------------------------------------- */
|
|
|
|
PyObject *PyUnicode_DecodeRawUnicodeEscape(const char *s,
|
|
Py_ssize_t size,
|
|
const char *errors)
|
|
{
|
|
const char *starts = s;
|
|
Py_ssize_t startinpos;
|
|
Py_ssize_t endinpos;
|
|
Py_ssize_t 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, &end, &startinpos, &endinpos, &exc, &s,
|
|
&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';
|
|
}
|
|
if (x <= 0xffff)
|
|
/* UCS-2 character */
|
|
*p++ = (Py_UNICODE) x;
|
|
else if (x <= 0x10ffff) {
|
|
/* UCS-4 character. Either store directly, or as
|
|
surrogate pair. */
|
|
#ifdef Py_UNICODE_WIDE
|
|
*p++ = (Py_UNICODE) x;
|
|
#else
|
|
x -= 0x10000L;
|
|
*p++ = 0xD800 + (Py_UNICODE) (x >> 10);
|
|
*p++ = 0xDC00 + (Py_UNICODE) (x & 0x03FF);
|
|
#endif
|
|
} else {
|
|
endinpos = s-starts;
|
|
outpos = p-PyUnicode_AS_UNICODE(v);
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"rawunicodeescape", "\\Uxxxxxxxx out of range",
|
|
&starts, &end, &startinpos, &endinpos, &exc, &s,
|
|
&v, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
nextByte:
|
|
;
|
|
}
|
|
if (_PyUnicode_Resize(&v, 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,
|
|
Py_ssize_t size)
|
|
{
|
|
PyObject *repr;
|
|
char *p;
|
|
char *q;
|
|
|
|
#ifdef Py_UNICODE_WIDE
|
|
const Py_ssize_t expandsize = 10;
|
|
#else
|
|
const Py_ssize_t expandsize = 6;
|
|
#endif
|
|
|
|
if (size > PY_SSIZE_T_MAX / expandsize)
|
|
return PyErr_NoMemory();
|
|
|
|
repr = PyBytes_FromStringAndSize(NULL, expandsize * size);
|
|
if (repr == NULL)
|
|
return NULL;
|
|
if (size == 0)
|
|
return repr;
|
|
|
|
p = q = PyBytes_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++ = hexdigits[(ch >> 28) & 0xf];
|
|
*p++ = hexdigits[(ch >> 24) & 0xf];
|
|
*p++ = hexdigits[(ch >> 20) & 0xf];
|
|
*p++ = hexdigits[(ch >> 16) & 0xf];
|
|
*p++ = hexdigits[(ch >> 12) & 0xf];
|
|
*p++ = hexdigits[(ch >> 8) & 0xf];
|
|
*p++ = hexdigits[(ch >> 4) & 0xf];
|
|
*p++ = hexdigits[ch & 15];
|
|
}
|
|
else
|
|
#else
|
|
/* Map UTF-16 surrogate pairs to '\U00xxxxxx' */
|
|
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++ = hexdigits[(ucs >> 28) & 0xf];
|
|
*p++ = hexdigits[(ucs >> 24) & 0xf];
|
|
*p++ = hexdigits[(ucs >> 20) & 0xf];
|
|
*p++ = hexdigits[(ucs >> 16) & 0xf];
|
|
*p++ = hexdigits[(ucs >> 12) & 0xf];
|
|
*p++ = hexdigits[(ucs >> 8) & 0xf];
|
|
*p++ = hexdigits[(ucs >> 4) & 0xf];
|
|
*p++ = hexdigits[ucs & 0xf];
|
|
continue;
|
|
}
|
|
/* Fall through: isolated surrogates are copied as-is */
|
|
s--;
|
|
size++;
|
|
}
|
|
#endif
|
|
/* Map 16-bit characters to '\uxxxx' */
|
|
if (ch >= 256) {
|
|
*p++ = '\\';
|
|
*p++ = 'u';
|
|
*p++ = hexdigits[(ch >> 12) & 0xf];
|
|
*p++ = hexdigits[(ch >> 8) & 0xf];
|
|
*p++ = hexdigits[(ch >> 4) & 0xf];
|
|
*p++ = hexdigits[ch & 15];
|
|
}
|
|
/* Copy everything else as-is */
|
|
else
|
|
*p++ = (char) ch;
|
|
}
|
|
size = p - q;
|
|
|
|
assert(size > 0);
|
|
if (_PyBytes_Resize(&repr, size) < 0)
|
|
return NULL;
|
|
return repr;
|
|
}
|
|
|
|
PyObject *PyUnicode_AsRawUnicodeEscapeString(PyObject *unicode)
|
|
{
|
|
PyObject *s;
|
|
if (!PyUnicode_Check(unicode)) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
s = PyUnicode_EncodeRawUnicodeEscape(PyUnicode_AS_UNICODE(unicode),
|
|
PyUnicode_GET_SIZE(unicode));
|
|
|
|
return s;
|
|
}
|
|
|
|
/* --- Unicode Internal Codec ------------------------------------------- */
|
|
|
|
PyObject *_PyUnicode_DecodeUnicodeInternal(const char *s,
|
|
Py_ssize_t size,
|
|
const char *errors)
|
|
{
|
|
const char *starts = s;
|
|
Py_ssize_t startinpos;
|
|
Py_ssize_t endinpos;
|
|
Py_ssize_t outpos;
|
|
PyUnicodeObject *v;
|
|
Py_UNICODE *p;
|
|
const char *end;
|
|
const char *reason;
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
|
|
#ifdef Py_UNICODE_WIDE
|
|
Py_UNICODE unimax = PyUnicode_GetMax();
|
|
#endif
|
|
|
|
/* XXX overflow detection missing */
|
|
v = _PyUnicode_New((size+Py_UNICODE_SIZE-1)/ Py_UNICODE_SIZE);
|
|
if (v == NULL)
|
|
goto onError;
|
|
if (PyUnicode_GetSize((PyObject *)v) == 0)
|
|
return (PyObject *)v;
|
|
p = PyUnicode_AS_UNICODE(v);
|
|
end = s + size;
|
|
|
|
while (s < end) {
|
|
memcpy(p, s, sizeof(Py_UNICODE));
|
|
/* We have to sanity check the raw data, otherwise doom looms for
|
|
some malformed UCS-4 data. */
|
|
if (
|
|
#ifdef Py_UNICODE_WIDE
|
|
*p > unimax || *p < 0 ||
|
|
#endif
|
|
end-s < Py_UNICODE_SIZE
|
|
)
|
|
{
|
|
startinpos = s - starts;
|
|
if (end-s < Py_UNICODE_SIZE) {
|
|
endinpos = end-starts;
|
|
reason = "truncated input";
|
|
}
|
|
else {
|
|
endinpos = s - starts + Py_UNICODE_SIZE;
|
|
reason = "illegal code point (> 0x10FFFF)";
|
|
}
|
|
outpos = p - PyUnicode_AS_UNICODE(v);
|
|
if (unicode_decode_call_errorhandler(
|
|
errors, &errorHandler,
|
|
"unicode_internal", reason,
|
|
&starts, &end, &startinpos, &endinpos, &exc, &s,
|
|
&v, &outpos, &p)) {
|
|
goto onError;
|
|
}
|
|
}
|
|
else {
|
|
p++;
|
|
s += Py_UNICODE_SIZE;
|
|
}
|
|
}
|
|
|
|
if (_PyUnicode_Resize(&v, 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;
|
|
}
|
|
|
|
/* --- Latin-1 Codec ------------------------------------------------------ */
|
|
|
|
PyObject *PyUnicode_DecodeLatin1(const char *s,
|
|
Py_ssize_t size,
|
|
const char *errors)
|
|
{
|
|
PyUnicodeObject *v;
|
|
Py_UNICODE *p;
|
|
const char *e, *unrolled_end;
|
|
|
|
/* 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);
|
|
e = s + size;
|
|
/* Unrolling the copy makes it much faster by reducing the looping
|
|
overhead. This is similar to what many memcpy() implementations do. */
|
|
unrolled_end = e - 4;
|
|
while (s < unrolled_end) {
|
|
p[0] = (unsigned char) s[0];
|
|
p[1] = (unsigned char) s[1];
|
|
p[2] = (unsigned char) s[2];
|
|
p[3] = (unsigned char) s[3];
|
|
s += 4;
|
|
p += 4;
|
|
}
|
|
while (s < e)
|
|
*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, Py_ssize_t size,
|
|
Py_ssize_t startpos, Py_ssize_t 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, Py_ssize_t size,
|
|
Py_ssize_t startpos, Py_ssize_t 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, Py_ssize_t size, PyObject **exceptionObject,
|
|
Py_ssize_t startpos, Py_ssize_t endpos,
|
|
Py_ssize_t *newpos)
|
|
{
|
|
static char *argparse = "On;encoding error handler must return (str/bytes, 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_SetString(PyExc_TypeError, &argparse[3]);
|
|
Py_DECREF(restuple);
|
|
return NULL;
|
|
}
|
|
if (!PyArg_ParseTuple(restuple, argparse,
|
|
&resunicode, newpos)) {
|
|
Py_DECREF(restuple);
|
|
return NULL;
|
|
}
|
|
if (!PyUnicode_Check(resunicode) && !PyBytes_Check(resunicode)) {
|
|
PyErr_SetString(PyExc_TypeError, &argparse[3]);
|
|
Py_DECREF(restuple);
|
|
return NULL;
|
|
}
|
|
if (*newpos<0)
|
|
*newpos = size+*newpos;
|
|
if (*newpos<0 || *newpos>size) {
|
|
PyErr_Format(PyExc_IndexError, "position %zd 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,
|
|
Py_ssize_t 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 */
|
|
Py_ssize_t ressize;
|
|
const char *encoding = (limit == 256) ? "latin-1" : "ascii";
|
|
const 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 */
|
|
if (size == 0)
|
|
return PyBytes_FromStringAndSize(NULL, 0);
|
|
res = PyBytes_FromStringAndSize(NULL, size);
|
|
if (res == NULL)
|
|
return NULL;
|
|
str = PyBytes_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 {
|
|
Py_ssize_t unicodepos = p-startp;
|
|
Py_ssize_t requiredsize;
|
|
PyObject *repunicode;
|
|
Py_ssize_t repsize;
|
|
Py_ssize_t newpos;
|
|
Py_ssize_t 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 - PyBytes_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 (_PyBytes_Resize(&res, requiredsize))
|
|
goto onError;
|
|
str = PyBytes_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;
|
|
if (PyBytes_Check(repunicode)) {
|
|
/* Directly copy bytes result to output. */
|
|
repsize = PyBytes_Size(repunicode);
|
|
if (repsize > 1) {
|
|
/* Make room for all additional bytes. */
|
|
respos = str - PyBytes_AS_STRING(res);
|
|
if (_PyBytes_Resize(&res, ressize+repsize-1)) {
|
|
Py_DECREF(repunicode);
|
|
goto onError;
|
|
}
|
|
str = PyBytes_AS_STRING(res) + respos;
|
|
ressize += repsize-1;
|
|
}
|
|
memcpy(str, PyBytes_AsString(repunicode), repsize);
|
|
str += repsize;
|
|
p = startp + newpos;
|
|
Py_DECREF(repunicode);
|
|
break;
|
|
}
|
|
/* 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 - PyBytes_AS_STRING(res);
|
|
repsize = PyUnicode_GET_SIZE(repunicode);
|
|
requiredsize = respos+repsize+(endp-collend);
|
|
if (requiredsize > ressize) {
|
|
if (requiredsize<2*ressize)
|
|
requiredsize = 2*ressize;
|
|
if (_PyBytes_Resize(&res, requiredsize)) {
|
|
Py_DECREF(repunicode);
|
|
goto onError;
|
|
}
|
|
str = PyBytes_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 */
|
|
size = str - PyBytes_AS_STRING(res);
|
|
if (size < ressize) { /* If this falls res will be NULL */
|
|
assert(size >= 0);
|
|
if (_PyBytes_Resize(&res, size) < 0)
|
|
goto onError;
|
|
}
|
|
|
|
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,
|
|
Py_ssize_t 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,
|
|
Py_ssize_t size,
|
|
const char *errors)
|
|
{
|
|
const char *starts = s;
|
|
PyUnicodeObject *v;
|
|
Py_UNICODE *p;
|
|
Py_ssize_t startinpos;
|
|
Py_ssize_t endinpos;
|
|
Py_ssize_t 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, &e, &startinpos, &endinpos, &exc, &s,
|
|
&v, &outpos, &p))
|
|
goto onError;
|
|
}
|
|
}
|
|
if (p - PyUnicode_AS_UNICODE(v) < PyUnicode_GET_SIZE(v))
|
|
if (_PyUnicode_Resize(&v, 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,
|
|
Py_ssize_t 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 -------------------------------------------- */
|
|
|
|
#if SIZEOF_INT < SIZEOF_SIZE_T
|
|
#define NEED_RETRY
|
|
#endif
|
|
|
|
/* XXX This code is limited to "true" double-byte encodings, as
|
|
a) it assumes an incomplete character consists of a single byte, and
|
|
b) IsDBCSLeadByte (probably) does not work for non-DBCS multi-byte
|
|
encodings, see IsDBCSLeadByteEx documentation. */
|
|
|
|
static int is_dbcs_lead_byte(const char *s, int offset)
|
|
{
|
|
const char *curr = s + offset;
|
|
|
|
if (IsDBCSLeadByte(*curr)) {
|
|
const char *prev = CharPrev(s, curr);
|
|
return (prev == curr) || !IsDBCSLeadByte(*prev) || (curr - prev == 2);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Decode MBCS string into unicode object. If 'final' is set, converts
|
|
* trailing lead-byte too. Returns consumed size if succeed, -1 otherwise.
|
|
*/
|
|
static int decode_mbcs(PyUnicodeObject **v,
|
|
const char *s, /* MBCS string */
|
|
int size, /* sizeof MBCS string */
|
|
int final)
|
|
{
|
|
Py_UNICODE *p;
|
|
Py_ssize_t n = 0;
|
|
int usize = 0;
|
|
|
|
assert(size >= 0);
|
|
|
|
/* Skip trailing lead-byte unless 'final' is set */
|
|
if (!final && size >= 1 && is_dbcs_lead_byte(s, size - 1))
|
|
--size;
|
|
|
|
/* First get the size of the result */
|
|
if (size > 0) {
|
|
usize = MultiByteToWideChar(CP_ACP, 0, s, size, NULL, 0);
|
|
if (usize == 0) {
|
|
PyErr_SetFromWindowsErrWithFilename(0, NULL);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (*v == NULL) {
|
|
/* Create unicode object */
|
|
*v = _PyUnicode_New(usize);
|
|
if (*v == NULL)
|
|
return -1;
|
|
}
|
|
else {
|
|
/* Extend unicode object */
|
|
n = PyUnicode_GET_SIZE(*v);
|
|
if (_PyUnicode_Resize(v, n + usize) < 0)
|
|
return -1;
|
|
}
|
|
|
|
/* Do the conversion */
|
|
if (size > 0) {
|
|
p = PyUnicode_AS_UNICODE(*v) + n;
|
|
if (0 == MultiByteToWideChar(CP_ACP, 0, s, size, p, usize)) {
|
|
PyErr_SetFromWindowsErrWithFilename(0, NULL);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
PyObject *PyUnicode_DecodeMBCSStateful(const char *s,
|
|
Py_ssize_t size,
|
|
const char *errors,
|
|
Py_ssize_t *consumed)
|
|
{
|
|
PyUnicodeObject *v = NULL;
|
|
int done;
|
|
|
|
if (consumed)
|
|
*consumed = 0;
|
|
|
|
#ifdef NEED_RETRY
|
|
retry:
|
|
if (size > INT_MAX)
|
|
done = decode_mbcs(&v, s, INT_MAX, 0);
|
|
else
|
|
#endif
|
|
done = decode_mbcs(&v, s, (int)size, !consumed);
|
|
|
|
if (done < 0) {
|
|
Py_XDECREF(v);
|
|
return NULL;
|
|
}
|
|
|
|
if (consumed)
|
|
*consumed += done;
|
|
|
|
#ifdef NEED_RETRY
|
|
if (size > INT_MAX) {
|
|
s += done;
|
|
size -= done;
|
|
goto retry;
|
|
}
|
|
#endif
|
|
|
|
return (PyObject *)v;
|
|
}
|
|
|
|
PyObject *PyUnicode_DecodeMBCS(const char *s,
|
|
Py_ssize_t size,
|
|
const char *errors)
|
|
{
|
|
return PyUnicode_DecodeMBCSStateful(s, size, errors, NULL);
|
|
}
|
|
|
|
/*
|
|
* Convert unicode into string object (MBCS).
|
|
* Returns 0 if succeed, -1 otherwise.
|
|
*/
|
|
static int encode_mbcs(PyObject **repr,
|
|
const Py_UNICODE *p, /* unicode */
|
|
int size) /* size of unicode */
|
|
{
|
|
int mbcssize = 0;
|
|
Py_ssize_t n = 0;
|
|
|
|
assert(size >= 0);
|
|
|
|
/* First get the size of the result */
|
|
if (size > 0) {
|
|
mbcssize = WideCharToMultiByte(CP_ACP, 0, p, size, NULL, 0, NULL, NULL);
|
|
if (mbcssize == 0) {
|
|
PyErr_SetFromWindowsErrWithFilename(0, NULL);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (*repr == NULL) {
|
|
/* Create string object */
|
|
*repr = PyBytes_FromStringAndSize(NULL, mbcssize);
|
|
if (*repr == NULL)
|
|
return -1;
|
|
}
|
|
else {
|
|
/* Extend string object */
|
|
n = PyBytes_Size(*repr);
|
|
if (_PyBytes_Resize(repr, n + mbcssize) < 0)
|
|
return -1;
|
|
}
|
|
|
|
/* Do the conversion */
|
|
if (size > 0) {
|
|
char *s = PyBytes_AS_STRING(*repr) + n;
|
|
if (0 == WideCharToMultiByte(CP_ACP, 0, p, size, s, mbcssize, NULL, NULL)) {
|
|
PyErr_SetFromWindowsErrWithFilename(0, NULL);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
PyObject *PyUnicode_EncodeMBCS(const Py_UNICODE *p,
|
|
Py_ssize_t size,
|
|
const char *errors)
|
|
{
|
|
PyObject *repr = NULL;
|
|
int ret;
|
|
|
|
#ifdef NEED_RETRY
|
|
retry:
|
|
if (size > INT_MAX)
|
|
ret = encode_mbcs(&repr, p, INT_MAX);
|
|
else
|
|
#endif
|
|
ret = encode_mbcs(&repr, p, (int)size);
|
|
|
|
if (ret < 0) {
|
|
Py_XDECREF(repr);
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef NEED_RETRY
|
|
if (size > INT_MAX) {
|
|
p += INT_MAX;
|
|
size -= INT_MAX;
|
|
goto retry;
|
|
}
|
|
#endif
|
|
|
|
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);
|
|
}
|
|
|
|
#undef NEED_RETRY
|
|
|
|
#endif /* MS_WINDOWS */
|
|
|
|
/* --- Character Mapping Codec -------------------------------------------- */
|
|
|
|
PyObject *PyUnicode_DecodeCharmap(const char *s,
|
|
Py_ssize_t size,
|
|
PyObject *mapping,
|
|
const char *errors)
|
|
{
|
|
const char *starts = s;
|
|
Py_ssize_t startinpos;
|
|
Py_ssize_t endinpos;
|
|
Py_ssize_t outpos;
|
|
const char *e;
|
|
PyUnicodeObject *v;
|
|
Py_UNICODE *p;
|
|
Py_ssize_t extrachars = 0;
|
|
PyObject *errorHandler = NULL;
|
|
PyObject *exc = NULL;
|
|
Py_UNICODE *mapstring = NULL;
|
|
Py_ssize_t maplen = 0;
|
|
|
|
/* 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;
|
|
if (PyUnicode_CheckExact(mapping)) {
|
|
mapstring = PyUnicode_AS_UNICODE(mapping);
|
|
maplen = PyUnicode_GET_SIZE(mapping);
|
|
while (s < e) {
|
|
unsigned char ch = *s;
|
|
Py_UNICODE x = 0xfffe; /* illegal value */
|
|
|
|
if (ch < maplen)
|
|
x = mapstring[ch];
|
|
|
|
if (x == 0xfffe) {
|
|
/* 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, &e, &startinpos, &endinpos, &exc, &s,
|
|
&v, &outpos, &p)) {
|
|
goto onError;
|
|
}
|
|
continue;
|
|
}
|
|
*p++ = x;
|
|
++s;
|
|
}
|
|
}
|
|
else {
|
|
while (s < e) {
|
|
unsigned char ch = *s;
|
|
PyObject *w, *x;
|
|
|
|
/* Get mapping (char ordinal -> integer, Unicode char or None) */
|
|
w = PyLong_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 (PyLong_Check(x)) {
|
|
long value = PyLong_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, &e, &startinpos, &endinpos, &exc, &s,
|
|
&v, &outpos, &p)) {
|
|
Py_DECREF(x);
|
|
goto onError;
|
|
}
|
|
Py_DECREF(x);
|
|
continue;
|
|
}
|
|
else if (PyUnicode_Check(x)) {
|
|
Py_ssize_t 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 */
|
|
Py_ssize_t oldpos = p - PyUnicode_AS_UNICODE(v);
|
|
Py_ssize_t needed = (targetsize - extrachars) + \
|
|
(targetsize << 2);
|
|
extrachars += needed;
|
|
/* XXX overflow detection missing */
|
|
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 str");
|
|
Py_DECREF(x);
|
|
goto onError;
|
|
}
|
|
Py_DECREF(x);
|
|
++s;
|
|
}
|
|
}
|
|
if (p - PyUnicode_AS_UNICODE(v) < PyUnicode_GET_SIZE(v))
|
|
if (_PyUnicode_Resize(&v, 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;
|
|
}
|
|
|
|
/* Charmap encoding: the lookup table */
|
|
|
|
struct encoding_map{
|
|
PyObject_HEAD
|
|
unsigned char level1[32];
|
|
int count2, count3;
|
|
unsigned char level23[1];
|
|
};
|
|
|
|
static PyObject*
|
|
encoding_map_size(PyObject *obj, PyObject* args)
|
|
{
|
|
struct encoding_map *map = (struct encoding_map*)obj;
|
|
return PyLong_FromLong(sizeof(*map) - 1 + 16*map->count2 +
|
|
128*map->count3);
|
|
}
|
|
|
|
static PyMethodDef encoding_map_methods[] = {
|
|
{"size", encoding_map_size, METH_NOARGS,
|
|
PyDoc_STR("Return the size (in bytes) of this object") },
|
|
{ 0 }
|
|
};
|
|
|
|
static void
|
|
encoding_map_dealloc(PyObject* o)
|
|
{
|
|
PyObject_FREE(o);
|
|
}
|
|
|
|
static PyTypeObject EncodingMapType = {
|
|
PyVarObject_HEAD_INIT(NULL, 0)
|
|
"EncodingMap", /*tp_name*/
|
|
sizeof(struct encoding_map), /*tp_basicsize*/
|
|
0, /*tp_itemsize*/
|
|
/* methods */
|
|
encoding_map_dealloc, /*tp_dealloc*/
|
|
0, /*tp_print*/
|
|
0, /*tp_getattr*/
|
|
0, /*tp_setattr*/
|
|
0, /*tp_reserved*/
|
|
0, /*tp_repr*/
|
|
0, /*tp_as_number*/
|
|
0, /*tp_as_sequence*/
|
|
0, /*tp_as_mapping*/
|
|
0, /*tp_hash*/
|
|
0, /*tp_call*/
|
|
0, /*tp_str*/
|
|
0, /*tp_getattro*/
|
|
0, /*tp_setattro*/
|
|
0, /*tp_as_buffer*/
|
|
Py_TPFLAGS_DEFAULT, /*tp_flags*/
|
|
0, /*tp_doc*/
|
|
0, /*tp_traverse*/
|
|
0, /*tp_clear*/
|
|
0, /*tp_richcompare*/
|
|
0, /*tp_weaklistoffset*/
|
|
0, /*tp_iter*/
|
|
0, /*tp_iternext*/
|
|
encoding_map_methods, /*tp_methods*/
|
|
0, /*tp_members*/
|
|
0, /*tp_getset*/
|
|
0, /*tp_base*/
|
|
0, /*tp_dict*/
|
|
0, /*tp_descr_get*/
|
|
0, /*tp_descr_set*/
|
|
0, /*tp_dictoffset*/
|
|
0, /*tp_init*/
|
|
0, /*tp_alloc*/
|
|
0, /*tp_new*/
|
|
0, /*tp_free*/
|
|
0, /*tp_is_gc*/
|
|
};
|
|
|
|
PyObject*
|
|
PyUnicode_BuildEncodingMap(PyObject* string)
|
|
{
|
|
Py_UNICODE *decode;
|
|
PyObject *result;
|
|
struct encoding_map *mresult;
|
|
int i;
|
|
int need_dict = 0;
|
|
unsigned char level1[32];
|
|
unsigned char level2[512];
|
|
unsigned char *mlevel1, *mlevel2, *mlevel3;
|
|
int count2 = 0, count3 = 0;
|
|
|
|
if (!PyUnicode_Check(string) || PyUnicode_GetSize(string) != 256) {
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
decode = PyUnicode_AS_UNICODE(string);
|
|
memset(level1, 0xFF, sizeof level1);
|
|
memset(level2, 0xFF, sizeof level2);
|
|
|
|
/* If there isn't a one-to-one mapping of NULL to \0,
|
|
or if there are non-BMP characters, we need to use
|
|
a mapping dictionary. */
|
|
if (decode[0] != 0)
|
|
need_dict = 1;
|
|
for (i = 1; i < 256; i++) {
|
|
int l1, l2;
|
|
if (decode[i] == 0
|
|
#ifdef Py_UNICODE_WIDE
|
|
|| decode[i] > 0xFFFF
|
|
#endif
|
|
) {
|
|
need_dict = 1;
|
|
break;
|
|
}
|
|
if (decode[i] == 0xFFFE)
|
|
/* unmapped character */
|
|
continue;
|
|
l1 = decode[i] >> 11;
|
|
l2 = decode[i] >> 7;
|
|
if (level1[l1] == 0xFF)
|
|
level1[l1] = count2++;
|
|
if (level2[l2] == 0xFF)
|
|
level2[l2] = count3++;
|
|
}
|
|
|
|
if (count2 >= 0xFF || count3 >= 0xFF)
|
|
need_dict = 1;
|
|
|
|
if (need_dict) {
|
|
PyObject *result = PyDict_New();
|
|
PyObject *key, *value;
|
|
if (!result)
|
|
return NULL;
|
|
for (i = 0; i < 256; i++) {
|
|
key = value = NULL;
|
|
key = PyLong_FromLong(decode[i]);
|
|
value = PyLong_FromLong(i);
|
|
if (!key || !value)
|
|
goto failed1;
|
|
if (PyDict_SetItem(result, key, value) == -1)
|
|
goto failed1;
|
|
Py_DECREF(key);
|
|
Py_DECREF(value);
|
|
}
|
|
return result;
|
|
failed1:
|
|
Py_XDECREF(key);
|
|
Py_XDECREF(value);
|
|
Py_DECREF(result);
|
|
return NULL;
|
|
}
|
|
|
|
/* Create a three-level trie */
|
|
result = PyObject_MALLOC(sizeof(struct encoding_map) +
|
|
16*count2 + 128*count3 - 1);
|
|
if (!result)
|
|
return PyErr_NoMemory();
|
|
PyObject_Init(result, &EncodingMapType);
|
|
mresult = (struct encoding_map*)result;
|
|
mresult->count2 = count2;
|
|
mresult->count3 = count3;
|
|
mlevel1 = mresult->level1;
|
|
mlevel2 = mresult->level23;
|
|
mlevel3 = mresult->level23 + 16*count2;
|
|
memcpy(mlevel1, level1, 32);
|
|
memset(mlevel2, 0xFF, 16*count2);
|
|
memset(mlevel3, 0, 128*count3);
|
|
count3 = 0;
|
|
for (i = 1; i < 256; i++) {
|
|
int o1, o2, o3, i2, i3;
|
|
if (decode[i] == 0xFFFE)
|
|
/* unmapped character */
|
|
continue;
|
|
o1 = decode[i]>>11;
|
|
o2 = (decode[i]>>7) & 0xF;
|
|
i2 = 16*mlevel1[o1] + o2;
|
|
if (mlevel2[i2] == 0xFF)
|
|
mlevel2[i2] = count3++;
|
|
o3 = decode[i] & 0x7F;
|
|
i3 = 128*mlevel2[i2] + o3;
|
|
mlevel3[i3] = i;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static int
|
|
encoding_map_lookup(Py_UNICODE c, PyObject *mapping)
|
|
{
|
|
struct encoding_map *map = (struct encoding_map*)mapping;
|
|
int l1 = c>>11;
|
|
int l2 = (c>>7) & 0xF;
|
|
int l3 = c & 0x7F;
|
|
int i;
|
|
|
|
#ifdef Py_UNICODE_WIDE
|
|
if (c > 0xFFFF) {
|
|
return -1;
|
|
}
|
|
#endif
|
|
if (c == 0)
|
|
return 0;
|
|
/* level 1*/
|
|
i = map->level1[l1];
|
|
if (i == 0xFF) {
|
|
return -1;
|
|
}
|
|
/* level 2*/
|
|
i = map->level23[16*i+l2];
|
|
if (i == 0xFF) {
|
|
return -1;
|
|
}
|
|
/* level 3 */
|
|
i = map->level23[16*map->count2 + 128*i + l3];
|
|
if (i == 0) {
|
|
return -1;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
/* Lookup the character ch in the mapping. If the character
|
|
can't be found, Py_None is returned (or NULL, if another
|
|
error occurred). */
|
|
static PyObject *charmapencode_lookup(Py_UNICODE c, PyObject *mapping)
|
|
{
|
|
PyObject *w = PyLong_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 (PyLong_Check(x)) {
|
|
long value = PyLong_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 (PyBytes_Check(x))
|
|
return x;
|
|
else {
|
|
/* wrong return value */
|
|
PyErr_Format(PyExc_TypeError,
|
|
"character mapping must return integer, bytes or None, not %.400s",
|
|
x->ob_type->tp_name);
|
|
Py_DECREF(x);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static int
|
|
charmapencode_resize(PyObject **outobj, Py_ssize_t *outpos, Py_ssize_t requiredsize)
|
|
{
|
|
Py_ssize_t outsize = PyBytes_GET_SIZE(*outobj);
|
|
/* exponentially overallocate to minimize reallocations */
|
|
if (requiredsize < 2*outsize)
|
|
requiredsize = 2*outsize;
|
|
if (_PyBytes_Resize(outobj, requiredsize))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
typedef enum charmapencode_result {
|
|
enc_SUCCESS, enc_FAILED, enc_EXCEPTION
|
|
}charmapencode_result;
|
|
/* lookup the character, put the result in the output string and adjust
|
|
various state variables. Resize the output bytes object 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 occurred. The caller must decref the result */
|
|
static
|
|
charmapencode_result charmapencode_output(Py_UNICODE c, PyObject *mapping,
|
|
PyObject **outobj, Py_ssize_t *outpos)
|
|
{
|
|
PyObject *rep;
|
|
char *outstart;
|
|
Py_ssize_t outsize = PyBytes_GET_SIZE(*outobj);
|
|
|
|
if (Py_TYPE(mapping) == &EncodingMapType) {
|
|
int res = encoding_map_lookup(c, mapping);
|
|
Py_ssize_t requiredsize = *outpos+1;
|
|
if (res == -1)
|
|
return enc_FAILED;
|
|
if (outsize<requiredsize)
|
|
if (charmapencode_resize(outobj, outpos, requiredsize))
|
|
return enc_EXCEPTION;
|
|
outstart = PyBytes_AS_STRING(*outobj);
|
|
outstart[(*outpos)++] = (char)res;
|
|
return enc_SUCCESS;
|
|
}
|
|
|
|
rep = charmapencode_lookup(c, mapping);
|
|
if (rep==NULL)
|
|
return enc_EXCEPTION;
|
|
else if (rep==Py_None) {
|
|
Py_DECREF(rep);
|
|
return enc_FAILED;
|
|
} else {
|
|
if (PyLong_Check(rep)) {
|
|
Py_ssize_t requiredsize = *outpos+1;
|
|
if (outsize<requiredsize)
|
|
if (charmapencode_resize(outobj, outpos, requiredsize)) {
|
|
Py_DECREF(rep);
|
|
return enc_EXCEPTION;
|
|
}
|
|
outstart = PyBytes_AS_STRING(*outobj);
|
|
outstart[(*outpos)++] = (char)PyLong_AS_LONG(rep);
|
|
}
|
|
else {
|
|
const char *repchars = PyBytes_AS_STRING(rep);
|
|
Py_ssize_t repsize = PyBytes_GET_SIZE(rep);
|
|
Py_ssize_t requiredsize = *outpos+repsize;
|
|
if (outsize<requiredsize)
|
|
if (charmapencode_resize(outobj, outpos, requiredsize)) {
|
|
Py_DECREF(rep);
|
|
return enc_EXCEPTION;
|
|
}
|
|
outstart = PyBytes_AS_STRING(*outobj);
|
|
memcpy(outstart + *outpos, repchars, repsize);
|
|
*outpos += repsize;
|
|
}
|
|
}
|
|
Py_DECREF(rep);
|
|
return enc_SUCCESS;
|
|
}
|
|
|
|
/* handle an error in PyUnicode_EncodeCharmap
|
|
Return 0 on success, -1 on error */
|
|
static
|
|
int charmap_encoding_error(
|
|
const Py_UNICODE *p, Py_ssize_t size, Py_ssize_t *inpos, PyObject *mapping,
|
|
PyObject **exceptionObject,
|
|
int *known_errorHandler, PyObject **errorHandler, const char *errors,
|
|
PyObject **res, Py_ssize_t *respos)
|
|
{
|
|
PyObject *repunicode = NULL; /* initialize to prevent gcc warning */
|
|
Py_ssize_t repsize;
|
|
Py_ssize_t newpos;
|
|
Py_UNICODE *uni2;
|
|
/* startpos for collecting unencodable chars */
|
|
Py_ssize_t collstartpos = *inpos;
|
|
Py_ssize_t collendpos = *inpos+1;
|
|
Py_ssize_t collpos;
|
|
char *encoding = "charmap";
|
|
char *reason = "character maps to <undefined>";
|
|
charmapencode_result x;
|
|
|
|
/* find all unencodable characters */
|
|
while (collendpos < size) {
|
|
PyObject *rep;
|
|
if (Py_TYPE(mapping) == &EncodingMapType) {
|
|
int res = encoding_map_lookup(p[collendpos], mapping);
|
|
if (res != -1)
|
|
break;
|
|
++collendpos;
|
|
continue;
|
|
}
|
|
|
|
rep = charmapencode_lookup(p[collendpos], mapping);
|
|
if (rep==NULL)
|
|
return -1;
|
|
else if (rep!=Py_None) {
|
|
Py_DECREF(rep);
|
|
break;
|
|
}
|
|
Py_DECREF(rep);
|
|
++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==enc_EXCEPTION) {
|
|
return -1;
|
|
}
|
|
else if (x==enc_FAILED) {
|
|
raise_encode_exception(exceptionObject, encoding, p, size, collstartpos, collendpos, reason);
|
|
return -1;
|
|
}
|
|
}
|
|
/* 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==enc_EXCEPTION)
|
|
return -1;
|
|
else if (x==enc_FAILED) {
|
|
raise_encode_exception(exceptionObject, encoding, p, size, collstartpos, collendpos, reason);
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
*inpos = collendpos;
|
|
break;
|
|
default:
|
|
repunicode = unicode_encode_call_errorhandler(errors, errorHandler,
|
|
encoding, reason, p, size, exceptionObject,
|
|
collstartpos, collendpos, &newpos);
|
|
if (repunicode == NULL)
|
|
return -1;
|
|
if (PyBytes_Check(repunicode)) {
|
|
/* Directly copy bytes result to output. */
|
|
Py_ssize_t outsize = PyBytes_Size(*res);
|
|
Py_ssize_t requiredsize;
|
|
repsize = PyBytes_Size(repunicode);
|
|
requiredsize = *respos + repsize;
|
|
if (requiredsize > outsize)
|
|
/* Make room for all additional bytes. */
|
|
if (charmapencode_resize(res, respos, requiredsize)) {
|
|
Py_DECREF(repunicode);
|
|
return -1;
|
|
}
|
|
memcpy(PyBytes_AsString(*res) + *respos,
|
|
PyBytes_AsString(repunicode), repsize);
|
|
*respos += repsize;
|
|
*inpos = newpos;
|
|
Py_DECREF(repunicode);
|
|
break;
|
|
}
|
|
/* 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==enc_EXCEPTION) {
|
|
return -1;
|
|
}
|
|
else if (x==enc_FAILED) {
|
|
Py_DECREF(repunicode);
|
|
raise_encode_exception(exceptionObject, encoding, p, size, collstartpos, collendpos, reason);
|
|
return -1;
|
|
}
|
|
}
|
|
*inpos = newpos;
|
|
Py_DECREF(repunicode);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
PyObject *PyUnicode_EncodeCharmap(const Py_UNICODE *p,
|
|
Py_ssize_t size,
|
|
PyObject *mapping,
|
|
const char *errors)
|
|
{
|
|
/* output object */
|
|
PyObject *res = NULL;
|
|
/* current input position */
|
|
Py_ssize_t inpos = 0;
|
|
/* current output position */
|
|
Py_ssize_t 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 = PyBytes_FromStringAndSize(NULL, size);
|
|
if (res == NULL)
|
|
goto onError;
|
|
if (size == 0)
|
|
return res;
|
|
|
|
while (inpos<size) {
|
|
/* try to encode it */
|
|
charmapencode_result x = charmapencode_output(p[inpos], mapping, &res, &respos);
|
|
if (x==enc_EXCEPTION) /* error */
|
|
goto onError;
|
|
if (x==enc_FAILED) { /* unencodable character */
|
|
if (charmap_encoding_error(p, size, &inpos, mapping,
|
|
&exc,
|
|
&known_errorHandler, &errorHandler, errors,
|
|
&res, &respos)) {
|
|
goto onError;
|
|
}
|
|
}
|
|
else
|
|
/* done with this character => adjust input position */
|
|
++inpos;
|
|
}
|
|
|
|
/* Resize if we allocated to much */
|
|
if (respos<PyBytes_GET_SIZE(res))
|
|
if (_PyBytes_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_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, Py_ssize_t size,
|
|
Py_ssize_t startpos, Py_ssize_t 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, Py_ssize_t size,
|
|
Py_ssize_t startpos, Py_ssize_t 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, Py_ssize_t size, PyObject **exceptionObject,
|
|
Py_ssize_t startpos, Py_ssize_t endpos,
|
|
Py_ssize_t *newpos)
|
|
{
|
|
static char *argparse = "O!n;translating error handler must return (str, int) tuple";
|
|
|
|
Py_ssize_t i_newpos;
|
|
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_SetString(PyExc_TypeError, &argparse[4]);
|
|
Py_DECREF(restuple);
|
|
return NULL;
|
|
}
|
|
if (!PyArg_ParseTuple(restuple, argparse, &PyUnicode_Type,
|
|
&resunicode, &i_newpos)) {
|
|
Py_DECREF(restuple);
|
|
return NULL;
|
|
}
|
|
if (i_newpos<0)
|
|
*newpos = size+i_newpos;
|
|
else
|
|
*newpos = i_newpos;
|
|
if (*newpos<0 || *newpos>size) {
|
|
PyErr_Format(PyExc_IndexError, "position %zd 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 = PyLong_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 (PyLong_Check(x)) {
|
|
long value = PyLong_AS_LONG(x);
|
|
long max = PyUnicode_GetMax();
|
|
if (value < 0 || value > max) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"character mapping must be in range(0x%x)", 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 str");
|
|
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,
|
|
Py_ssize_t requiredsize)
|
|
{
|
|
Py_ssize_t oldsize = PyUnicode_GET_SIZE(*outobj);
|
|
if (requiredsize > oldsize) {
|
|
/* remember old output position */
|
|
Py_ssize_t 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,
|
|
Py_ssize_t 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 (PyLong_Check(*res)) {
|
|
/* no overflow check, because we know that the space is enough */
|
|
*(*outp)++ = (Py_UNICODE)PyLong_AS_LONG(*res);
|
|
}
|
|
else if (PyUnicode_Check(*res)) {
|
|
Py_ssize_t 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 */
|
|
Py_ssize_t 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,
|
|
Py_ssize_t 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 */
|
|
Py_ssize_t 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 */
|
|
Py_ssize_t repsize;
|
|
Py_ssize_t 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,
|
|
Py_ssize_t 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;
|
|
Py_ssize_t repsize;
|
|
Py_ssize_t 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;
|
|
if (!PyUnicode_Check(repunicode)) {
|
|
/* Byte results not supported, since they have no decimal property. */
|
|
PyErr_SetString(PyExc_TypeError, "error handler should return unicode");
|
|
Py_DECREF(repunicode);
|
|
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 ------------------------------------------------------------ */
|
|
|
|
#include "stringlib/unicodedefs.h"
|
|
#include "stringlib/fastsearch.h"
|
|
#include "stringlib/count.h"
|
|
/* Include _ParseTupleFinds from find.h */
|
|
#define FROM_UNICODE
|
|
#include "stringlib/find.h"
|
|
#include "stringlib/partition.h"
|
|
|
|
#define _Py_InsertThousandsGrouping _PyUnicode_InsertThousandsGrouping
|
|
#define _Py_InsertThousandsGroupingLocale _PyUnicode_InsertThousandsGroupingLocale
|
|
#include "stringlib/localeutil.h"
|
|
|
|
/* helper macro to fixup start/end slice values */
|
|
#define FIX_START_END(obj) \
|
|
if (start < 0) \
|
|
start += (obj)->length; \
|
|
if (start < 0) \
|
|
start = 0; \
|
|
if (end > (obj)->length) \
|
|
end = (obj)->length; \
|
|
if (end < 0) \
|
|
end += (obj)->length; \
|
|
if (end < 0) \
|
|
end = 0;
|
|
|
|
Py_ssize_t PyUnicode_Count(PyObject *str,
|
|
PyObject *substr,
|
|
Py_ssize_t start,
|
|
Py_ssize_t end)
|
|
{
|
|
Py_ssize_t result;
|
|
PyUnicodeObject* str_obj;
|
|
PyUnicodeObject* sub_obj;
|
|
|
|
str_obj = (PyUnicodeObject*) PyUnicode_FromObject(str);
|
|
if (!str_obj)
|
|
return -1;
|
|
sub_obj = (PyUnicodeObject*) PyUnicode_FromObject(substr);
|
|
if (!sub_obj) {
|
|
Py_DECREF(str_obj);
|
|
return -1;
|
|
}
|
|
|
|
FIX_START_END(str_obj);
|
|
|
|
result = stringlib_count(
|
|
str_obj->str + start, end - start, sub_obj->str, sub_obj->length
|
|
);
|
|
|
|
Py_DECREF(sub_obj);
|
|
Py_DECREF(str_obj);
|
|
|
|
return result;
|
|
}
|
|
|
|
Py_ssize_t PyUnicode_Find(PyObject *str,
|
|
PyObject *sub,
|
|
Py_ssize_t start,
|
|
Py_ssize_t end,
|
|
int direction)
|
|
{
|
|
Py_ssize_t result;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (!str)
|
|
return -2;
|
|
sub = PyUnicode_FromObject(sub);
|
|
if (!sub) {
|
|
Py_DECREF(str);
|
|
return -2;
|
|
}
|
|
|
|
if (direction > 0)
|
|
result = stringlib_find_slice(
|
|
PyUnicode_AS_UNICODE(str), PyUnicode_GET_SIZE(str),
|
|
PyUnicode_AS_UNICODE(sub), PyUnicode_GET_SIZE(sub),
|
|
start, end
|
|
);
|
|
else
|
|
result = stringlib_rfind_slice(
|
|
PyUnicode_AS_UNICODE(str), PyUnicode_GET_SIZE(str),
|
|
PyUnicode_AS_UNICODE(sub), PyUnicode_GET_SIZE(sub),
|
|
start, end
|
|
);
|
|
|
|
Py_DECREF(str);
|
|
Py_DECREF(sub);
|
|
|
|
return result;
|
|
}
|
|
|
|
static
|
|
int tailmatch(PyUnicodeObject *self,
|
|
PyUnicodeObject *substring,
|
|
Py_ssize_t start,
|
|
Py_ssize_t end,
|
|
int direction)
|
|
{
|
|
if (substring->length == 0)
|
|
return 1;
|
|
|
|
FIX_START_END(self);
|
|
|
|
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;
|
|
}
|
|
|
|
Py_ssize_t PyUnicode_Tailmatch(PyObject *str,
|
|
PyObject *substr,
|
|
Py_ssize_t start,
|
|
Py_ssize_t end,
|
|
int direction)
|
|
{
|
|
Py_ssize_t result;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return -1;
|
|
substr = PyUnicode_FromObject(substr);
|
|
if (substr == NULL) {
|
|
Py_DECREF(str);
|
|
return -1;
|
|
}
|
|
|
|
result = tailmatch((PyUnicodeObject *)str,
|
|
(PyUnicodeObject *)substr,
|
|
start, end, direction);
|
|
Py_DECREF(str);
|
|
Py_DECREF(substr);
|
|
return result;
|
|
}
|
|
|
|
/* 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)
|
|
{
|
|
Py_ssize_t 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)
|
|
{
|
|
Py_ssize_t 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)
|
|
{
|
|
Py_ssize_t 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)
|
|
{
|
|
Py_ssize_t 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)
|
|
{
|
|
const Py_UNICODE blank = ' ';
|
|
const Py_UNICODE *sep = ␣
|
|
Py_ssize_t seplen = 1;
|
|
PyUnicodeObject *res = NULL; /* the result */
|
|
Py_UNICODE *res_p; /* pointer to free byte in res's string area */
|
|
PyObject *fseq; /* PySequence_Fast(seq) */
|
|
Py_ssize_t seqlen; /* len(fseq) -- number of items in sequence */
|
|
PyObject **items;
|
|
PyObject *item;
|
|
Py_ssize_t sz, i;
|
|
|
|
fseq = PySequence_Fast(seq, "");
|
|
if (fseq == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
/* NOTE: the following code can't call back into Python code,
|
|
* so we are sure that fseq won't be mutated.
|
|
*/
|
|
|
|
seqlen = PySequence_Fast_GET_SIZE(fseq);
|
|
/* If empty sequence, return u"". */
|
|
if (seqlen == 0) {
|
|
res = _PyUnicode_New(0); /* empty sequence; return u"" */
|
|
goto Done;
|
|
}
|
|
items = PySequence_Fast_ITEMS(fseq);
|
|
/* If singleton sequence with an exact Unicode, return that. */
|
|
if (seqlen == 1) {
|
|
item = items[0];
|
|
if (PyUnicode_CheckExact(item)) {
|
|
Py_INCREF(item);
|
|
res = (PyUnicodeObject *)item;
|
|
goto Done;
|
|
}
|
|
}
|
|
else {
|
|
/* Set up sep and seplen */
|
|
if (separator == NULL) {
|
|
sep = ␣
|
|
seplen = 1;
|
|
}
|
|
else {
|
|
if (!PyUnicode_Check(separator)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"separator: expected str instance,"
|
|
" %.80s found",
|
|
Py_TYPE(separator)->tp_name);
|
|
goto onError;
|
|
}
|
|
sep = PyUnicode_AS_UNICODE(separator);
|
|
seplen = PyUnicode_GET_SIZE(separator);
|
|
}
|
|
}
|
|
|
|
/* There are at least two things to join, or else we have a subclass
|
|
* of str in the sequence.
|
|
* Do a pre-pass to figure out the total amount of space we'll
|
|
* need (sz), and see whether all argument are strings.
|
|
*/
|
|
sz = 0;
|
|
for (i = 0; i < seqlen; i++) {
|
|
const Py_ssize_t old_sz = sz;
|
|
item = items[i];
|
|
if (!PyUnicode_Check(item)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"sequence item %zd: expected str instance,"
|
|
" %.80s found",
|
|
i, Py_TYPE(item)->tp_name);
|
|
goto onError;
|
|
}
|
|
sz += PyUnicode_GET_SIZE(item);
|
|
if (i != 0)
|
|
sz += seplen;
|
|
if (sz < old_sz || sz > PY_SSIZE_T_MAX) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"join() result is too long for a Python string");
|
|
goto onError;
|
|
}
|
|
}
|
|
|
|
res = _PyUnicode_New(sz);
|
|
if (res == NULL)
|
|
goto onError;
|
|
|
|
/* Catenate everything. */
|
|
res_p = PyUnicode_AS_UNICODE(res);
|
|
for (i = 0; i < seqlen; ++i) {
|
|
Py_ssize_t itemlen;
|
|
item = items[i];
|
|
itemlen = PyUnicode_GET_SIZE(item);
|
|
/* Copy item, and maybe the separator. */
|
|
if (i) {
|
|
Py_UNICODE_COPY(res_p, sep, seplen);
|
|
res_p += seplen;
|
|
}
|
|
Py_UNICODE_COPY(res_p, PyUnicode_AS_UNICODE(item), itemlen);
|
|
res_p += itemlen;
|
|
}
|
|
|
|
Done:
|
|
Py_DECREF(fseq);
|
|
return (PyObject *)res;
|
|
|
|
onError:
|
|
Py_DECREF(fseq);
|
|
Py_XDECREF(res);
|
|
return NULL;
|
|
}
|
|
|
|
static
|
|
PyUnicodeObject *pad(PyUnicodeObject *self,
|
|
Py_ssize_t left,
|
|
Py_ssize_t 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;
|
|
}
|
|
|
|
if (left > PY_SSIZE_T_MAX - self->length ||
|
|
right > PY_SSIZE_T_MAX - (left + self->length)) {
|
|
PyErr_SetString(PyExc_OverflowError, "padded string is too long");
|
|
return NULL;
|
|
}
|
|
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);
|
|
|
|
static
|
|
PyObject *split_whitespace(PyUnicodeObject *self,
|
|
PyObject *list,
|
|
Py_ssize_t maxcount)
|
|
{
|
|
register Py_ssize_t i;
|
|
register Py_ssize_t j;
|
|
Py_ssize_t len = self->length;
|
|
PyObject *str;
|
|
register const Py_UNICODE *buf = self->str;
|
|
|
|
for (i = j = 0; i < len; ) {
|
|
/* find a token */
|
|
while (i < len && Py_UNICODE_ISSPACE(buf[i]))
|
|
i++;
|
|
j = i;
|
|
while (i < len && !Py_UNICODE_ISSPACE(buf[i]))
|
|
i++;
|
|
if (j < i) {
|
|
if (maxcount-- <= 0)
|
|
break;
|
|
SPLIT_APPEND(buf, j, i);
|
|
while (i < len && Py_UNICODE_ISSPACE(buf[i]))
|
|
i++;
|
|
j = i;
|
|
}
|
|
}
|
|
if (j < len) {
|
|
SPLIT_APPEND(buf, j, len);
|
|
}
|
|
return list;
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyUnicode_Splitlines(PyObject *string,
|
|
int keepends)
|
|
{
|
|
register Py_ssize_t i;
|
|
register Py_ssize_t j;
|
|
Py_ssize_t 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; ) {
|
|
Py_ssize_t eol;
|
|
|
|
/* Find a line and append it */
|
|
while (i < len && !BLOOM_LINEBREAK(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_XDECREF(list);
|
|
Py_DECREF(string);
|
|
return NULL;
|
|
}
|
|
|
|
static
|
|
PyObject *split_char(PyUnicodeObject *self,
|
|
PyObject *list,
|
|
Py_UNICODE ch,
|
|
Py_ssize_t maxcount)
|
|
{
|
|
register Py_ssize_t i;
|
|
register Py_ssize_t j;
|
|
Py_ssize_t len = self->length;
|
|
PyObject *str;
|
|
register const Py_UNICODE *buf = self->str;
|
|
|
|
for (i = j = 0; i < len; ) {
|
|
if (buf[i] == ch) {
|
|
if (maxcount-- <= 0)
|
|
break;
|
|
SPLIT_APPEND(buf, j, i);
|
|
i = j = i + 1;
|
|
} else
|
|
i++;
|
|
}
|
|
if (j <= len) {
|
|
SPLIT_APPEND(buf, j, len);
|
|
}
|
|
return list;
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
return NULL;
|
|
}
|
|
|
|
static
|
|
PyObject *split_substring(PyUnicodeObject *self,
|
|
PyObject *list,
|
|
PyUnicodeObject *substring,
|
|
Py_ssize_t maxcount)
|
|
{
|
|
register Py_ssize_t i;
|
|
register Py_ssize_t j;
|
|
Py_ssize_t len = self->length;
|
|
Py_ssize_t 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,
|
|
Py_ssize_t maxcount)
|
|
{
|
|
register Py_ssize_t i;
|
|
register Py_ssize_t j;
|
|
Py_ssize_t len = self->length;
|
|
PyObject *str;
|
|
register const Py_UNICODE *buf = self->str;
|
|
|
|
for (i = j = len - 1; i >= 0; ) {
|
|
/* find a token */
|
|
while (i >= 0 && Py_UNICODE_ISSPACE(buf[i]))
|
|
i--;
|
|
j = i;
|
|
while (i >= 0 && !Py_UNICODE_ISSPACE(buf[i]))
|
|
i--;
|
|
if (j > i) {
|
|
if (maxcount-- <= 0)
|
|
break;
|
|
SPLIT_APPEND(buf, i + 1, j + 1);
|
|
while (i >= 0 && Py_UNICODE_ISSPACE(buf[i]))
|
|
i--;
|
|
j = i;
|
|
}
|
|
}
|
|
if (j >= 0) {
|
|
SPLIT_APPEND(buf, 0, j + 1);
|
|
}
|
|
if (PyList_Reverse(list) < 0)
|
|
goto onError;
|
|
return list;
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
return NULL;
|
|
}
|
|
|
|
static
|
|
PyObject *rsplit_char(PyUnicodeObject *self,
|
|
PyObject *list,
|
|
Py_UNICODE ch,
|
|
Py_ssize_t maxcount)
|
|
{
|
|
register Py_ssize_t i;
|
|
register Py_ssize_t j;
|
|
Py_ssize_t len = self->length;
|
|
PyObject *str;
|
|
register const Py_UNICODE *buf = self->str;
|
|
|
|
for (i = j = len - 1; i >= 0; ) {
|
|
if (buf[i] == ch) {
|
|
if (maxcount-- <= 0)
|
|
break;
|
|
SPLIT_APPEND(buf, i + 1, j + 1);
|
|
j = i = i - 1;
|
|
} else
|
|
i--;
|
|
}
|
|
if (j >= -1) {
|
|
SPLIT_APPEND(buf, 0, j + 1);
|
|
}
|
|
if (PyList_Reverse(list) < 0)
|
|
goto onError;
|
|
return list;
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
return NULL;
|
|
}
|
|
|
|
static
|
|
PyObject *rsplit_substring(PyUnicodeObject *self,
|
|
PyObject *list,
|
|
PyUnicodeObject *substring,
|
|
Py_ssize_t maxcount)
|
|
{
|
|
register Py_ssize_t i;
|
|
register Py_ssize_t j;
|
|
Py_ssize_t len = self->length;
|
|
Py_ssize_t 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_APPEND(self->str, i + sublen, j);
|
|
j = i;
|
|
i -= sublen;
|
|
} else
|
|
i--;
|
|
}
|
|
if (j >= 0) {
|
|
SPLIT_APPEND(self->str, 0, j);
|
|
}
|
|
if (PyList_Reverse(list) < 0)
|
|
goto onError;
|
|
return list;
|
|
|
|
onError:
|
|
Py_DECREF(list);
|
|
return NULL;
|
|
}
|
|
|
|
#undef SPLIT_APPEND
|
|
|
|
static
|
|
PyObject *split(PyUnicodeObject *self,
|
|
PyUnicodeObject *substring,
|
|
Py_ssize_t maxcount)
|
|
{
|
|
PyObject *list;
|
|
|
|
if (maxcount < 0)
|
|
maxcount = PY_SSIZE_T_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,
|
|
Py_ssize_t maxcount)
|
|
{
|
|
PyObject *list;
|
|
|
|
if (maxcount < 0)
|
|
maxcount = PY_SSIZE_T_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,
|
|
Py_ssize_t maxcount)
|
|
{
|
|
PyUnicodeObject *u;
|
|
|
|
if (maxcount < 0)
|
|
maxcount = PY_SSIZE_T_MAX;
|
|
|
|
if (str1->length == str2->length) {
|
|
/* same length */
|
|
Py_ssize_t i;
|
|
if (str1->length == 1) {
|
|
/* replace characters */
|
|
Py_UNICODE u1, u2;
|
|
if (!findchar(self->str, self->length, str1->str[0]))
|
|
goto nothing;
|
|
u = (PyUnicodeObject*) PyUnicode_FromUnicode(NULL, self->length);
|
|
if (!u)
|
|
return NULL;
|
|
Py_UNICODE_COPY(u->str, self->str, self->length);
|
|
u1 = str1->str[0];
|
|
u2 = str2->str[0];
|
|
for (i = 0; i < u->length; i++)
|
|
if (u->str[i] == u1) {
|
|
if (--maxcount < 0)
|
|
break;
|
|
u->str[i] = u2;
|
|
}
|
|
} else {
|
|
i = fastsearch(
|
|
self->str, self->length, str1->str, str1->length, FAST_SEARCH
|
|
);
|
|
if (i < 0)
|
|
goto nothing;
|
|
u = (PyUnicodeObject*) PyUnicode_FromUnicode(NULL, self->length);
|
|
if (!u)
|
|
return NULL;
|
|
Py_UNICODE_COPY(u->str, self->str, self->length);
|
|
while (i <= self->length - str1->length)
|
|
if (Py_UNICODE_MATCH(self, i, str1)) {
|
|
if (--maxcount < 0)
|
|
break;
|
|
Py_UNICODE_COPY(u->str+i, str2->str, str2->length);
|
|
i += str1->length;
|
|
} else
|
|
i++;
|
|
}
|
|
} else {
|
|
|
|
Py_ssize_t n, i, j, e;
|
|
Py_ssize_t product, new_size, delta;
|
|
Py_UNICODE *p;
|
|
|
|
/* replace strings */
|
|
n = stringlib_count(self->str, self->length, str1->str, str1->length);
|
|
if (n > maxcount)
|
|
n = maxcount;
|
|
if (n == 0)
|
|
goto nothing;
|
|
/* new_size = self->length + n * (str2->length - str1->length)); */
|
|
delta = (str2->length - str1->length);
|
|
if (delta == 0) {
|
|
new_size = self->length;
|
|
} else {
|
|
product = n * (str2->length - str1->length);
|
|
if ((product / (str2->length - str1->length)) != n) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"replace string is too long");
|
|
return NULL;
|
|
}
|
|
new_size = self->length + product;
|
|
if (new_size < 0) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"replace string is too long");
|
|
return NULL;
|
|
}
|
|
}
|
|
u = _PyUnicode_New(new_size);
|
|
if (!u)
|
|
return NULL;
|
|
i = 0;
|
|
p = u->str;
|
|
e = self->length - str1->length;
|
|
if (str1->length > 0) {
|
|
while (n-- > 0) {
|
|
/* look for next match */
|
|
j = i;
|
|
while (j <= e) {
|
|
if (Py_UNICODE_MATCH(self, j, str1))
|
|
break;
|
|
j++;
|
|
}
|
|
if (j > i) {
|
|
if (j > e)
|
|
break;
|
|
/* copy unchanged part [i:j] */
|
|
Py_UNICODE_COPY(p, self->str+i, j-i);
|
|
p += j - i;
|
|
}
|
|
/* copy substitution string */
|
|
if (str2->length > 0) {
|
|
Py_UNICODE_COPY(p, str2->str, str2->length);
|
|
p += str2->length;
|
|
}
|
|
i = j + str1->length;
|
|
}
|
|
if (i < self->length)
|
|
/* copy tail [i:] */
|
|
Py_UNICODE_COPY(p, self->str+i, self->length-i);
|
|
} else {
|
|
/* interleave */
|
|
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;
|
|
|
|
nothing:
|
|
/* nothing to replace; return original string (when possible) */
|
|
if (PyUnicode_CheckExact(self)) {
|
|
Py_INCREF(self);
|
|
return (PyObject *) self;
|
|
}
|
|
return PyUnicode_FromUnicode(self->str, self->length);
|
|
}
|
|
|
|
/* --- Unicode Object Methods --------------------------------------------- */
|
|
|
|
PyDoc_STRVAR(title__doc__,
|
|
"S.title() -> str\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() -> str\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() -> str\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;
|
|
Py_ssize_t 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]) -> str\n\
|
|
\n\
|
|
Return S centered in a 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)
|
|
{
|
|
Py_ssize_t marg, left;
|
|
Py_ssize_t width;
|
|
Py_UNICODE fillchar = ' ';
|
|
|
|
if (!PyArg_ParseTuple(args, "n|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 Jython 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)
|
|
{
|
|
Py_ssize_t 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 Py_ssize_t 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)
|
|
{
|
|
if (PyUnicode_Check(left) && PyUnicode_Check(right))
|
|
return unicode_compare((PyUnicodeObject *)left,
|
|
(PyUnicodeObject *)right);
|
|
PyErr_Format(PyExc_TypeError,
|
|
"Can't compare %.100s and %.100s",
|
|
left->ob_type->tp_name,
|
|
right->ob_type->tp_name);
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
PyUnicode_CompareWithASCIIString(PyObject* uni, const char* str)
|
|
{
|
|
int i;
|
|
Py_UNICODE *id;
|
|
assert(PyUnicode_Check(uni));
|
|
id = PyUnicode_AS_UNICODE(uni);
|
|
/* Compare Unicode string and source character set string */
|
|
for (i = 0; id[i] && str[i]; i++)
|
|
if (id[i] != str[i])
|
|
return ((int)id[i] < (int)str[i]) ? -1 : 1;
|
|
if (id[i])
|
|
return 1; /* uni is longer */
|
|
if (str[i])
|
|
return -1; /* str is longer */
|
|
return 0;
|
|
}
|
|
|
|
|
|
#define TEST_COND(cond) \
|
|
((cond) ? Py_True : Py_False)
|
|
|
|
PyObject *PyUnicode_RichCompare(PyObject *left,
|
|
PyObject *right,
|
|
int op)
|
|
{
|
|
int result;
|
|
|
|
if (PyUnicode_Check(left) && PyUnicode_Check(right)) {
|
|
PyObject *v;
|
|
if (((PyUnicodeObject *) left)->length !=
|
|
((PyUnicodeObject *) right)->length) {
|
|
if (op == Py_EQ) {
|
|
Py_INCREF(Py_False);
|
|
return Py_False;
|
|
}
|
|
if (op == Py_NE) {
|
|
Py_INCREF(Py_True);
|
|
return Py_True;
|
|
}
|
|
}
|
|
if (left == right)
|
|
result = 0;
|
|
else
|
|
result = unicode_compare((PyUnicodeObject *)left,
|
|
(PyUnicodeObject *)right);
|
|
|
|
/* Convert the return value to a Boolean */
|
|
switch (op) {
|
|
case Py_EQ:
|
|
v = TEST_COND(result == 0);
|
|
break;
|
|
case Py_NE:
|
|
v = TEST_COND(result != 0);
|
|
break;
|
|
case Py_LE:
|
|
v = TEST_COND(result <= 0);
|
|
break;
|
|
case Py_GE:
|
|
v = TEST_COND(result >= 0);
|
|
break;
|
|
case Py_LT:
|
|
v = TEST_COND(result == -1);
|
|
break;
|
|
case Py_GT:
|
|
v = TEST_COND(result == 1);
|
|
break;
|
|
default:
|
|
PyErr_BadArgument();
|
|
return NULL;
|
|
}
|
|
Py_INCREF(v);
|
|
return v;
|
|
}
|
|
|
|
Py_INCREF(Py_NotImplemented);
|
|
return Py_NotImplemented;
|
|
}
|
|
|
|
int PyUnicode_Contains(PyObject *container,
|
|
PyObject *element)
|
|
{
|
|
PyObject *str, *sub;
|
|
int result;
|
|
|
|
/* Coerce the two arguments */
|
|
sub = PyUnicode_FromObject(element);
|
|
if (!sub) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"'in <string>' requires string as left operand, not %s",
|
|
element->ob_type->tp_name);
|
|
return -1;
|
|
}
|
|
|
|
str = PyUnicode_FromObject(container);
|
|
if (!str) {
|
|
Py_DECREF(sub);
|
|
return -1;
|
|
}
|
|
|
|
result = stringlib_contains_obj(str, sub);
|
|
|
|
Py_DECREF(str);
|
|
Py_DECREF(sub);
|
|
|
|
return result;
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
|
|
void
|
|
PyUnicode_Append(PyObject **pleft, PyObject *right)
|
|
{
|
|
PyObject *new;
|
|
if (*pleft == NULL)
|
|
return;
|
|
if (right == NULL || !PyUnicode_Check(*pleft)) {
|
|
Py_DECREF(*pleft);
|
|
*pleft = NULL;
|
|
return;
|
|
}
|
|
new = PyUnicode_Concat(*pleft, right);
|
|
Py_DECREF(*pleft);
|
|
*pleft = new;
|
|
}
|
|
|
|
void
|
|
PyUnicode_AppendAndDel(PyObject **pleft, PyObject *right)
|
|
{
|
|
PyUnicode_Append(pleft, right);
|
|
Py_XDECREF(right);
|
|
}
|
|
|
|
PyDoc_STRVAR(count__doc__,
|
|
"S.count(sub[, start[, end]]) -> int\n\
|
|
\n\
|
|
Return the number of non-overlapping occurrences of substring sub in\n\
|
|
string 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;
|
|
Py_ssize_t start = 0;
|
|
Py_ssize_t end = PY_SSIZE_T_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;
|
|
|
|
FIX_START_END(self);
|
|
|
|
result = PyLong_FromSsize_t(
|
|
stringlib_count(self->str + start, end - start,
|
|
substring->str, substring->length)
|
|
);
|
|
|
|
Py_DECREF(substring);
|
|
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(encode__doc__,
|
|
"S.encode([encoding[, errors]]) -> bytes\n\
|
|
\n\
|
|
Encode 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_AsEncodedString((PyObject *)self, encoding, errors);
|
|
if (v == NULL)
|
|
goto onError;
|
|
if (!PyBytes_Check(v)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"encoder did not return a bytes object "
|
|
"(type=%.400s)",
|
|
Py_TYPE(v)->tp_name);
|
|
Py_DECREF(v);
|
|
return NULL;
|
|
}
|
|
return v;
|
|
|
|
onError:
|
|
return NULL;
|
|
}
|
|
|
|
PyDoc_STRVAR(expandtabs__doc__,
|
|
"S.expandtabs([tabsize]) -> str\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;
|
|
Py_UNICODE *qe;
|
|
Py_ssize_t i, j, incr;
|
|
PyUnicodeObject *u;
|
|
int tabsize = 8;
|
|
|
|
if (!PyArg_ParseTuple(args, "|i:expandtabs", &tabsize))
|
|
return NULL;
|
|
|
|
/* First pass: determine size of output string */
|
|
i = 0; /* chars up to and including most recent \n or \r */
|
|
j = 0; /* chars since most recent \n or \r (use in tab calculations) */
|
|
e = self->str + self->length; /* end of input */
|
|
for (p = self->str; p < e; p++)
|
|
if (*p == '\t') {
|
|
if (tabsize > 0) {
|
|
incr = tabsize - (j % tabsize); /* cannot overflow */
|
|
if (j > PY_SSIZE_T_MAX - incr)
|
|
goto overflow1;
|
|
j += incr;
|
|
}
|
|
}
|
|
else {
|
|
if (j > PY_SSIZE_T_MAX - 1)
|
|
goto overflow1;
|
|
j++;
|
|
if (*p == '\n' || *p == '\r') {
|
|
if (i > PY_SSIZE_T_MAX - j)
|
|
goto overflow1;
|
|
i += j;
|
|
j = 0;
|
|
}
|
|
}
|
|
|
|
if (i > PY_SSIZE_T_MAX - j)
|
|
goto overflow1;
|
|
|
|
/* Second pass: create output string and fill it */
|
|
u = _PyUnicode_New(i + j);
|
|
if (!u)
|
|
return NULL;
|
|
|
|
j = 0; /* same as in first pass */
|
|
q = u->str; /* next output char */
|
|
qe = u->str + u->length; /* end of output */
|
|
|
|
for (p = self->str; p < e; p++)
|
|
if (*p == '\t') {
|
|
if (tabsize > 0) {
|
|
i = tabsize - (j % tabsize);
|
|
j += i;
|
|
while (i--) {
|
|
if (q >= qe)
|
|
goto overflow2;
|
|
*q++ = ' ';
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if (q >= qe)
|
|
goto overflow2;
|
|
*q++ = *p;
|
|
j++;
|
|
if (*p == '\n' || *p == '\r')
|
|
j = 0;
|
|
}
|
|
|
|
return (PyObject*) u;
|
|
|
|
overflow2:
|
|
Py_DECREF(u);
|
|
overflow1:
|
|
PyErr_SetString(PyExc_OverflowError, "new string is too long");
|
|
return NULL;
|
|
}
|
|
|
|
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)
|
|
{
|
|
PyObject *substring;
|
|
Py_ssize_t start;
|
|
Py_ssize_t end;
|
|
Py_ssize_t result;
|
|
|
|
if (!_ParseTupleFinds(args, &substring, &start, &end))
|
|
return NULL;
|
|
|
|
result = stringlib_find_slice(
|
|
PyUnicode_AS_UNICODE(self), PyUnicode_GET_SIZE(self),
|
|
PyUnicode_AS_UNICODE(substring), PyUnicode_GET_SIZE(substring),
|
|
start, end
|
|
);
|
|
|
|
Py_DECREF(substring);
|
|
|
|
return PyLong_FromSsize_t(result);
|
|
}
|
|
|
|
static PyObject *
|
|
unicode_getitem(PyUnicodeObject *self, Py_ssize_t 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);
|
|
}
|
|
|
|
/* Believe it or not, this produces the same value for ASCII strings
|
|
as string_hash(). */
|
|
static long
|
|
unicode_hash(PyUnicodeObject *self)
|
|
{
|
|
Py_ssize_t len;
|
|
Py_UNICODE *p;
|
|
long x;
|
|
|
|
if (self->hash != -1)
|
|
return self->hash;
|
|
len = Py_SIZE(self);
|
|
p = self->str;
|
|
x = *p << 7;
|
|
while (--len >= 0)
|
|
x = (1000003*x) ^ *p++;
|
|
x ^= Py_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)
|
|
{
|
|
Py_ssize_t result;
|
|
PyObject *substring;
|
|
Py_ssize_t start;
|
|
Py_ssize_t end;
|
|
|
|
if (!_ParseTupleFinds(args, &substring, &start, &end))
|
|
return NULL;
|
|
|
|
result = stringlib_find_slice(
|
|
PyUnicode_AS_UNICODE(self), PyUnicode_GET_SIZE(self),
|
|
PyUnicode_AS_UNICODE(substring), PyUnicode_GET_SIZE(substring),
|
|
start, end
|
|
);
|
|
|
|
Py_DECREF(substring);
|
|
|
|
if (result < 0) {
|
|
PyErr_SetString(PyExc_ValueError, "substring not found");
|
|
return NULL;
|
|
}
|
|
|
|
return PyLong_FromSsize_t(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 (PyUnicode_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 (PyUnicode_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 (PyUnicode_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 (PyUnicode_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 (PyUnicode_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 (PyUnicode_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 (PyUnicode_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 (PyUnicode_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 (PyUnicode_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);
|
|
}
|
|
|
|
int
|
|
PyUnicode_IsIdentifier(PyObject *self)
|
|
{
|
|
register const Py_UNICODE *p = PyUnicode_AS_UNICODE((PyUnicodeObject*)self);
|
|
register const Py_UNICODE *e;
|
|
|
|
/* Special case for empty strings */
|
|
if (PyUnicode_GET_SIZE(self) == 0)
|
|
return 0;
|
|
|
|
/* PEP 3131 says that the first character must be in
|
|
XID_Start and subsequent characters in XID_Continue,
|
|
and for the ASCII range, the 2.x rules apply (i.e
|
|
start with letters and underscore, continue with
|
|
letters, digits, underscore). However, given the current
|
|
definition of XID_Start and XID_Continue, it is sufficient
|
|
to check just for these, except that _ must be allowed
|
|
as starting an identifier. */
|
|
if (!_PyUnicode_IsXidStart(*p) && *p != 0x5F /* LOW LINE */)
|
|
return 0;
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
for (p++; p < e; p++) {
|
|
if (!_PyUnicode_IsXidContinue(*p))
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
PyDoc_STRVAR(isidentifier__doc__,
|
|
"S.isidentifier() -> bool\n\
|
|
\n\
|
|
Return True if S is a valid identifier according\n\
|
|
to the language definition.");
|
|
|
|
static PyObject*
|
|
unicode_isidentifier(PyObject *self)
|
|
{
|
|
return PyBool_FromLong(PyUnicode_IsIdentifier(self));
|
|
}
|
|
|
|
PyDoc_STRVAR(isprintable__doc__,
|
|
"S.isprintable() -> bool\n\
|
|
\n\
|
|
Return True if all characters in S are considered\n\
|
|
printable in repr() or S is empty, False otherwise.");
|
|
|
|
static PyObject*
|
|
unicode_isprintable(PyObject *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_ISPRINTABLE(*p)) {
|
|
Py_RETURN_TRUE;
|
|
}
|
|
|
|
e = p + PyUnicode_GET_SIZE(self);
|
|
for (; p < e; p++) {
|
|
if (!Py_UNICODE_ISPRINTABLE(*p)) {
|
|
Py_RETURN_FALSE;
|
|
}
|
|
}
|
|
Py_RETURN_TRUE;
|
|
}
|
|
|
|
PyDoc_STRVAR(join__doc__,
|
|
"S.join(sequence) -> str\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 Py_ssize_t
|
|
unicode_length(PyUnicodeObject *self)
|
|
{
|
|
return self->length;
|
|
}
|
|
|
|
PyDoc_STRVAR(ljust__doc__,
|
|
"S.ljust(width[, fillchar]) -> str\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)
|
|
{
|
|
Py_ssize_t width;
|
|
Py_UNICODE fillchar = ' ';
|
|
|
|
if (!PyArg_ParseTuple(args, "n|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() -> str\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)
|
|
|
|
/* externally visible for str.strip(unicode) */
|
|
PyObject *
|
|
_PyUnicode_XStrip(PyUnicodeObject *self, int striptype, PyObject *sepobj)
|
|
{
|
|
Py_UNICODE *s = PyUnicode_AS_UNICODE(self);
|
|
Py_ssize_t len = PyUnicode_GET_SIZE(self);
|
|
Py_UNICODE *sep = PyUnicode_AS_UNICODE(sepobj);
|
|
Py_ssize_t seplen = PyUnicode_GET_SIZE(sepobj);
|
|
Py_ssize_t i, j;
|
|
|
|
BLOOM_MASK sepmask = make_bloom_mask(sep, seplen);
|
|
|
|
i = 0;
|
|
if (striptype != RIGHTSTRIP) {
|
|
while (i < len && BLOOM_MEMBER(sepmask, s[i], sep, seplen)) {
|
|
i++;
|
|
}
|
|
}
|
|
|
|
j = len;
|
|
if (striptype != LEFTSTRIP) {
|
|
do {
|
|
j--;
|
|
} while (j >= i && BLOOM_MEMBER(sepmask, s[j], sep, 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);
|
|
Py_ssize_t 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 {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"%s arg must be None or str",
|
|
STRIPNAME(striptype));
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
return do_strip(self, striptype);
|
|
}
|
|
|
|
|
|
PyDoc_STRVAR(strip__doc__,
|
|
"S.strip([chars]) -> str\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.");
|
|
|
|
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]) -> str\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.");
|
|
|
|
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]) -> str\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.");
|
|
|
|
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, Py_ssize_t len)
|
|
{
|
|
PyUnicodeObject *u;
|
|
Py_UNICODE *p;
|
|
Py_ssize_t nchars;
|
|
size_t nbytes;
|
|
|
|
if (len < 1) {
|
|
Py_INCREF(unicode_empty);
|
|
return (PyObject *)unicode_empty;
|
|
}
|
|
|
|
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 (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;
|
|
|
|
if (str->length == 1) {
|
|
Py_UNICODE_FILL(p, str->str[0], len);
|
|
} else {
|
|
Py_ssize_t done = str->length; /* number of characters copied this far */
|
|
Py_UNICODE_COPY(p, str->str, str->length);
|
|
while (done < nchars) {
|
|
Py_ssize_t n = (done <= nchars-done) ? done : nchars-done;
|
|
Py_UNICODE_COPY(p+done, p, n);
|
|
done += n;
|
|
}
|
|
}
|
|
|
|
return (PyObject*) u;
|
|
}
|
|
|
|
PyObject *PyUnicode_Replace(PyObject *obj,
|
|
PyObject *subobj,
|
|
PyObject *replobj,
|
|
Py_ssize_t 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[, count]) -> str\n\
|
|
\n\
|
|
Return a copy of S with all occurrences of substring\n\
|
|
old replaced by new. If the optional argument count is\n\
|
|
given, only the first count occurrences are replaced.");
|
|
|
|
static PyObject*
|
|
unicode_replace(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
PyUnicodeObject *str1;
|
|
PyUnicodeObject *str2;
|
|
Py_ssize_t maxcount = -1;
|
|
PyObject *result;
|
|
|
|
if (!PyArg_ParseTuple(args, "OO|n: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)
|
|
{
|
|
PyObject *repr;
|
|
Py_UNICODE *p;
|
|
Py_UNICODE *s = PyUnicode_AS_UNICODE(unicode);
|
|
Py_ssize_t size = PyUnicode_GET_SIZE(unicode);
|
|
|
|
/* XXX(nnorwitz): rather than over-allocating, it would be
|
|
better to choose a different scheme. Perhaps scan the
|
|
first N-chars of the string and allocate based on that size.
|
|
*/
|
|
/* Initial allocation is based on the longest-possible unichr
|
|
escape.
|
|
|
|
In wide (UTF-32) builds '\U00xxxxxx' is 10 chars per source
|
|
unichr, so in this case it's the longest unichr escape. In
|
|
narrow (UTF-16) builds this is five chars per source unichr
|
|
since there are two unichrs in the surrogate pair, so in narrow
|
|
(UTF-16) builds it's not the longest unichr escape.
|
|
|
|
In wide or narrow builds '\uxxxx' is 6 chars per source unichr,
|
|
so in the narrow (UTF-16) build case it's the longest unichr
|
|
escape.
|
|
*/
|
|
|
|
repr = PyUnicode_FromUnicode(NULL,
|
|
2 /* quotes */
|
|
#ifdef Py_UNICODE_WIDE
|
|
+ 10*size
|
|
#else
|
|
+ 6*size
|
|
#endif
|
|
+ 1);
|
|
if (repr == NULL)
|
|
return NULL;
|
|
|
|
p = PyUnicode_AS_UNICODE(repr);
|
|
|
|
/* Add quote */
|
|
*p++ = (findchar(s, size, '\'') &&
|
|
!findchar(s, size, '"')) ? '"' : '\'';
|
|
while (size-- > 0) {
|
|
Py_UNICODE ch = *s++;
|
|
|
|
/* Escape quotes and backslashes */
|
|
if ((ch == PyUnicode_AS_UNICODE(repr)[0]) || (ch == '\\')) {
|
|
*p++ = '\\';
|
|
*p++ = ch;
|
|
continue;
|
|
}
|
|
|
|
/* Map special whitespace to '\t', \n', '\r' */
|
|
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++ = hexdigits[(ch >> 4) & 0x000F];
|
|
*p++ = hexdigits[ch & 0x000F];
|
|
}
|
|
|
|
/* Copy ASCII characters as-is */
|
|
else if (ch < 0x7F) {
|
|
*p++ = ch;
|
|
}
|
|
|
|
/* Non-ASCII characters */
|
|
else {
|
|
Py_UCS4 ucs = ch;
|
|
|
|
#ifndef Py_UNICODE_WIDE
|
|
Py_UNICODE ch2 = 0;
|
|
/* Get code point from surrogate pair */
|
|
if (size > 0) {
|
|
ch2 = *s;
|
|
if (ch >= 0xD800 && ch < 0xDC00 && ch2 >= 0xDC00
|
|
&& ch2 <= 0xDFFF) {
|
|
ucs = (((ch & 0x03FF) << 10) | (ch2 & 0x03FF))
|
|
+ 0x00010000;
|
|
s++;
|
|
size--;
|
|
}
|
|
}
|
|
#endif
|
|
/* Map Unicode whitespace and control characters
|
|
(categories Z* and C* except ASCII space)
|
|
*/
|
|
if (!Py_UNICODE_ISPRINTABLE(ucs)) {
|
|
/* Map 8-bit characters to '\xhh' */
|
|
if (ucs <= 0xff) {
|
|
*p++ = '\\';
|
|
*p++ = 'x';
|
|
*p++ = hexdigits[(ch >> 4) & 0x000F];
|
|
*p++ = hexdigits[ch & 0x000F];
|
|
}
|
|
/* Map 21-bit characters to '\U00xxxxxx' */
|
|
else if (ucs >= 0x10000) {
|
|
*p++ = '\\';
|
|
*p++ = 'U';
|
|
*p++ = hexdigits[(ucs >> 28) & 0x0000000F];
|
|
*p++ = hexdigits[(ucs >> 24) & 0x0000000F];
|
|
*p++ = hexdigits[(ucs >> 20) & 0x0000000F];
|
|
*p++ = hexdigits[(ucs >> 16) & 0x0000000F];
|
|
*p++ = hexdigits[(ucs >> 12) & 0x0000000F];
|
|
*p++ = hexdigits[(ucs >> 8) & 0x0000000F];
|
|
*p++ = hexdigits[(ucs >> 4) & 0x0000000F];
|
|
*p++ = hexdigits[ucs & 0x0000000F];
|
|
}
|
|
/* Map 16-bit characters to '\uxxxx' */
|
|
else {
|
|
*p++ = '\\';
|
|
*p++ = 'u';
|
|
*p++ = hexdigits[(ucs >> 12) & 0x000F];
|
|
*p++ = hexdigits[(ucs >> 8) & 0x000F];
|
|
*p++ = hexdigits[(ucs >> 4) & 0x000F];
|
|
*p++ = hexdigits[ucs & 0x000F];
|
|
}
|
|
}
|
|
/* Copy characters as-is */
|
|
else {
|
|
*p++ = ch;
|
|
#ifndef Py_UNICODE_WIDE
|
|
if (ucs >= 0x10000)
|
|
*p++ = ch2;
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
/* Add quote */
|
|
*p++ = PyUnicode_AS_UNICODE(repr)[0];
|
|
|
|
*p = '\0';
|
|
PyUnicode_Resize(&repr, p - PyUnicode_AS_UNICODE(repr));
|
|
return repr;
|
|
}
|
|
|
|
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)
|
|
{
|
|
PyObject *substring;
|
|
Py_ssize_t start;
|
|
Py_ssize_t end;
|
|
Py_ssize_t result;
|
|
|
|
if (!_ParseTupleFinds(args, &substring, &start, &end))
|
|
return NULL;
|
|
|
|
result = stringlib_rfind_slice(
|
|
PyUnicode_AS_UNICODE(self), PyUnicode_GET_SIZE(self),
|
|
PyUnicode_AS_UNICODE(substring), PyUnicode_GET_SIZE(substring),
|
|
start, end
|
|
);
|
|
|
|
Py_DECREF(substring);
|
|
|
|
return PyLong_FromSsize_t(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)
|
|
{
|
|
PyObject *substring;
|
|
Py_ssize_t start;
|
|
Py_ssize_t end;
|
|
Py_ssize_t result;
|
|
|
|
if (!_ParseTupleFinds(args, &substring, &start, &end))
|
|
return NULL;
|
|
|
|
result = stringlib_rfind_slice(
|
|
PyUnicode_AS_UNICODE(self), PyUnicode_GET_SIZE(self),
|
|
PyUnicode_AS_UNICODE(substring), PyUnicode_GET_SIZE(substring),
|
|
start, end
|
|
);
|
|
|
|
Py_DECREF(substring);
|
|
|
|
if (result < 0) {
|
|
PyErr_SetString(PyExc_ValueError, "substring not found");
|
|
return NULL;
|
|
}
|
|
return PyLong_FromSsize_t(result);
|
|
}
|
|
|
|
PyDoc_STRVAR(rjust__doc__,
|
|
"S.rjust(width[, fillchar]) -> str\n\
|
|
\n\
|
|
Return S right-justified in a 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)
|
|
{
|
|
Py_ssize_t width;
|
|
Py_UNICODE fillchar = ' ';
|
|
|
|
if (!PyArg_ParseTuple(args, "n|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);
|
|
}
|
|
|
|
PyObject *PyUnicode_Split(PyObject *s,
|
|
PyObject *sep,
|
|
Py_ssize_t 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 or is None, any\n\
|
|
whitespace string is a separator and empty strings are\n\
|
|
removed from the result.");
|
|
|
|
static PyObject*
|
|
unicode_split(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
PyObject *substring = Py_None;
|
|
Py_ssize_t maxcount = -1;
|
|
|
|
if (!PyArg_ParseTuple(args, "|On: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_Partition(PyObject *str_in, PyObject *sep_in)
|
|
{
|
|
PyObject* str_obj;
|
|
PyObject* sep_obj;
|
|
PyObject* out;
|
|
|
|
str_obj = PyUnicode_FromObject(str_in);
|
|
if (!str_obj)
|
|
return NULL;
|
|
sep_obj = PyUnicode_FromObject(sep_in);
|
|
if (!sep_obj) {
|
|
Py_DECREF(str_obj);
|
|
return NULL;
|
|
}
|
|
|
|
out = stringlib_partition(
|
|
str_obj, PyUnicode_AS_UNICODE(str_obj), PyUnicode_GET_SIZE(str_obj),
|
|
sep_obj, PyUnicode_AS_UNICODE(sep_obj), PyUnicode_GET_SIZE(sep_obj)
|
|
);
|
|
|
|
Py_DECREF(sep_obj);
|
|
Py_DECREF(str_obj);
|
|
|
|
return out;
|
|
}
|
|
|
|
|
|
PyObject *
|
|
PyUnicode_RPartition(PyObject *str_in, PyObject *sep_in)
|
|
{
|
|
PyObject* str_obj;
|
|
PyObject* sep_obj;
|
|
PyObject* out;
|
|
|
|
str_obj = PyUnicode_FromObject(str_in);
|
|
if (!str_obj)
|
|
return NULL;
|
|
sep_obj = PyUnicode_FromObject(sep_in);
|
|
if (!sep_obj) {
|
|
Py_DECREF(str_obj);
|
|
return NULL;
|
|
}
|
|
|
|
out = stringlib_rpartition(
|
|
str_obj, PyUnicode_AS_UNICODE(str_obj), PyUnicode_GET_SIZE(str_obj),
|
|
sep_obj, PyUnicode_AS_UNICODE(sep_obj), PyUnicode_GET_SIZE(sep_obj)
|
|
);
|
|
|
|
Py_DECREF(sep_obj);
|
|
Py_DECREF(str_obj);
|
|
|
|
return out;
|
|
}
|
|
|
|
PyDoc_STRVAR(partition__doc__,
|
|
"S.partition(sep) -> (head, sep, tail)\n\
|
|
\n\
|
|
Search for the separator sep in S, and return the part before it,\n\
|
|
the separator itself, and the part after it. If the separator is not\n\
|
|
found, return S and two empty strings.");
|
|
|
|
static PyObject*
|
|
unicode_partition(PyUnicodeObject *self, PyObject *separator)
|
|
{
|
|
return PyUnicode_Partition((PyObject *)self, separator);
|
|
}
|
|
|
|
PyDoc_STRVAR(rpartition__doc__,
|
|
"S.rpartition(sep) -> (tail, sep, head)\n\
|
|
\n\
|
|
Search for the separator sep in S, starting at the end of S, and return\n\
|
|
the part before it, the separator itself, and the part after it. If the\n\
|
|
separator is not found, return two empty strings and S.");
|
|
|
|
static PyObject*
|
|
unicode_rpartition(PyUnicodeObject *self, PyObject *separator)
|
|
{
|
|
return PyUnicode_RPartition((PyObject *)self, separator);
|
|
}
|
|
|
|
PyObject *PyUnicode_RSplit(PyObject *s,
|
|
PyObject *sep,
|
|
Py_ssize_t 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;
|
|
Py_ssize_t maxcount = -1;
|
|
|
|
if (!PyArg_ParseTuple(args, "|On: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(PyObject *self)
|
|
{
|
|
if (PyUnicode_CheckExact(self)) {
|
|
Py_INCREF(self);
|
|
return self;
|
|
} else
|
|
/* Subtype -- return genuine unicode string with the same value. */
|
|
return PyUnicode_FromUnicode(PyUnicode_AS_UNICODE(self),
|
|
PyUnicode_GET_SIZE(self));
|
|
}
|
|
|
|
PyDoc_STRVAR(swapcase__doc__,
|
|
"S.swapcase() -> str\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(maketrans__doc__,
|
|
"str.maketrans(x[, y[, z]]) -> dict (static method)\n\
|
|
\n\
|
|
Return a translation table usable for str.translate().\n\
|
|
If there is only one argument, it must be a dictionary mapping Unicode\n\
|
|
ordinals (integers) or characters to Unicode ordinals, strings or None.\n\
|
|
Character keys will be then converted to ordinals.\n\
|
|
If there are two arguments, they must be strings of equal length, and\n\
|
|
in the resulting dictionary, each character in x will be mapped to the\n\
|
|
character at the same position in y. If there is a third argument, it\n\
|
|
must be a string, whose characters will be mapped to None in the result.");
|
|
|
|
static PyObject*
|
|
unicode_maketrans(PyUnicodeObject *null, PyObject *args)
|
|
{
|
|
PyObject *x, *y = NULL, *z = NULL;
|
|
PyObject *new = NULL, *key, *value;
|
|
Py_ssize_t i = 0;
|
|
int res;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|UU:maketrans", &x, &y, &z))
|
|
return NULL;
|
|
new = PyDict_New();
|
|
if (!new)
|
|
return NULL;
|
|
if (y != NULL) {
|
|
/* x must be a string too, of equal length */
|
|
Py_ssize_t ylen = PyUnicode_GET_SIZE(y);
|
|
if (!PyUnicode_Check(x)) {
|
|
PyErr_SetString(PyExc_TypeError, "first maketrans argument must "
|
|
"be a string if there is a second argument");
|
|
goto err;
|
|
}
|
|
if (PyUnicode_GET_SIZE(x) != ylen) {
|
|
PyErr_SetString(PyExc_ValueError, "the first two maketrans "
|
|
"arguments must have equal length");
|
|
goto err;
|
|
}
|
|
/* create entries for translating chars in x to those in y */
|
|
for (i = 0; i < PyUnicode_GET_SIZE(x); i++) {
|
|
key = PyLong_FromLong(PyUnicode_AS_UNICODE(x)[i]);
|
|
value = PyLong_FromLong(PyUnicode_AS_UNICODE(y)[i]);
|
|
if (!key || !value)
|
|
goto err;
|
|
res = PyDict_SetItem(new, key, value);
|
|
Py_DECREF(key);
|
|
Py_DECREF(value);
|
|
if (res < 0)
|
|
goto err;
|
|
}
|
|
/* create entries for deleting chars in z */
|
|
if (z != NULL) {
|
|
for (i = 0; i < PyUnicode_GET_SIZE(z); i++) {
|
|
key = PyLong_FromLong(PyUnicode_AS_UNICODE(z)[i]);
|
|
if (!key)
|
|
goto err;
|
|
res = PyDict_SetItem(new, key, Py_None);
|
|
Py_DECREF(key);
|
|
if (res < 0)
|
|
goto err;
|
|
}
|
|
}
|
|
} else {
|
|
/* x must be a dict */
|
|
if (!PyDict_CheckExact(x)) {
|
|
PyErr_SetString(PyExc_TypeError, "if you give only one argument "
|
|
"to maketrans it must be a dict");
|
|
goto err;
|
|
}
|
|
/* copy entries into the new dict, converting string keys to int keys */
|
|
while (PyDict_Next(x, &i, &key, &value)) {
|
|
if (PyUnicode_Check(key)) {
|
|
/* convert string keys to integer keys */
|
|
PyObject *newkey;
|
|
if (PyUnicode_GET_SIZE(key) != 1) {
|
|
PyErr_SetString(PyExc_ValueError, "string keys in translate "
|
|
"table must be of length 1");
|
|
goto err;
|
|
}
|
|
newkey = PyLong_FromLong(PyUnicode_AS_UNICODE(key)[0]);
|
|
if (!newkey)
|
|
goto err;
|
|
res = PyDict_SetItem(new, newkey, value);
|
|
Py_DECREF(newkey);
|
|
if (res < 0)
|
|
goto err;
|
|
} else if (PyLong_Check(key)) {
|
|
/* just keep integer keys */
|
|
if (PyDict_SetItem(new, key, value) < 0)
|
|
goto err;
|
|
} else {
|
|
PyErr_SetString(PyExc_TypeError, "keys in translate table must "
|
|
"be strings or integers");
|
|
goto err;
|
|
}
|
|
}
|
|
}
|
|
return new;
|
|
err:
|
|
Py_DECREF(new);
|
|
return NULL;
|
|
}
|
|
|
|
PyDoc_STRVAR(translate__doc__,
|
|
"S.translate(table) -> str\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, 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() -> str\n\
|
|
\n\
|
|
Return a copy of S converted to uppercase.");
|
|
|
|
static PyObject*
|
|
unicode_upper(PyUnicodeObject *self)
|
|
{
|
|
return fixup(self, fixupper);
|
|
}
|
|
|
|
PyDoc_STRVAR(zfill__doc__,
|
|
"S.zfill(width) -> str\n\
|
|
\n\
|
|
Pad a numeric string S with zeros on the left, to fill a field\n\
|
|
of the specified width. The string S is never truncated.");
|
|
|
|
static PyObject *
|
|
unicode_zfill(PyUnicodeObject *self, PyObject *args)
|
|
{
|
|
Py_ssize_t fill;
|
|
PyUnicodeObject *u;
|
|
|
|
Py_ssize_t width;
|
|
if (!PyArg_ParseTuple(args, "n: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 PyLong_FromLong(numfree);
|
|
}
|
|
#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.\n\
|
|
prefix can also be a tuple of strings to try.");
|
|
|
|
static PyObject *
|
|
unicode_startswith(PyUnicodeObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *subobj;
|
|
PyUnicodeObject *substring;
|
|
Py_ssize_t start = 0;
|
|
Py_ssize_t end = PY_SSIZE_T_MAX;
|
|
int result;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|O&O&:startswith", &subobj,
|
|
_PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
|
|
return NULL;
|
|
if (PyTuple_Check(subobj)) {
|
|
Py_ssize_t i;
|
|
for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) {
|
|
substring = (PyUnicodeObject *)PyUnicode_FromObject(
|
|
PyTuple_GET_ITEM(subobj, i));
|
|
if (substring == NULL)
|
|
return NULL;
|
|
result = tailmatch(self, substring, start, end, -1);
|
|
Py_DECREF(substring);
|
|
if (result) {
|
|
Py_RETURN_TRUE;
|
|
}
|
|
}
|
|
/* nothing matched */
|
|
Py_RETURN_FALSE;
|
|
}
|
|
substring = (PyUnicodeObject *)PyUnicode_FromObject(subobj);
|
|
if (substring == NULL)
|
|
return NULL;
|
|
result = tailmatch(self, substring, start, end, -1);
|
|
Py_DECREF(substring);
|
|
return PyBool_FromLong(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.\n\
|
|
suffix can also be a tuple of strings to try.");
|
|
|
|
static PyObject *
|
|
unicode_endswith(PyUnicodeObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *subobj;
|
|
PyUnicodeObject *substring;
|
|
Py_ssize_t start = 0;
|
|
Py_ssize_t end = PY_SSIZE_T_MAX;
|
|
int result;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|O&O&:endswith", &subobj,
|
|
_PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
|
|
return NULL;
|
|
if (PyTuple_Check(subobj)) {
|
|
Py_ssize_t i;
|
|
for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) {
|
|
substring = (PyUnicodeObject *)PyUnicode_FromObject(
|
|
PyTuple_GET_ITEM(subobj, i));
|
|
if (substring == NULL)
|
|
return NULL;
|
|
result = tailmatch(self, substring, start, end, +1);
|
|
Py_DECREF(substring);
|
|
if (result) {
|
|
Py_RETURN_TRUE;
|
|
}
|
|
}
|
|
Py_RETURN_FALSE;
|
|
}
|
|
substring = (PyUnicodeObject *)PyUnicode_FromObject(subobj);
|
|
if (substring == NULL)
|
|
return NULL;
|
|
|
|
result = tailmatch(self, substring, start, end, +1);
|
|
Py_DECREF(substring);
|
|
return PyBool_FromLong(result);
|
|
}
|
|
|
|
#include "stringlib/string_format.h"
|
|
|
|
PyDoc_STRVAR(format__doc__,
|
|
"S.format(*args, **kwargs) -> str\n\
|
|
\n\
|
|
");
|
|
|
|
static PyObject *
|
|
unicode__format__(PyObject* self, PyObject* args)
|
|
{
|
|
PyObject *format_spec;
|
|
|
|
if (!PyArg_ParseTuple(args, "U:__format__", &format_spec))
|
|
return NULL;
|
|
|
|
return _PyUnicode_FormatAdvanced(self,
|
|
PyUnicode_AS_UNICODE(format_spec),
|
|
PyUnicode_GET_SIZE(format_spec));
|
|
}
|
|
|
|
PyDoc_STRVAR(p_format__doc__,
|
|
"S.__format__(format_spec) -> str\n\
|
|
\n\
|
|
");
|
|
|
|
static PyObject *
|
|
unicode__sizeof__(PyUnicodeObject *v)
|
|
{
|
|
return PyLong_FromSsize_t(sizeof(PyUnicodeObject) +
|
|
sizeof(Py_UNICODE) * (v->length + 1));
|
|
}
|
|
|
|
PyDoc_STRVAR(sizeof__doc__,
|
|
"S.__sizeof__() -> size of S in memory, in bytes");
|
|
|
|
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__},
|
|
{"partition", (PyCFunction) unicode_partition, METH_O, partition__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__},
|
|
{"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__},
|
|
{"rpartition", (PyCFunction) unicode_rpartition, METH_O, rpartition__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__},
|
|
{"isidentifier", (PyCFunction) unicode_isidentifier, METH_NOARGS, isidentifier__doc__},
|
|
{"isprintable", (PyCFunction) unicode_isprintable, METH_NOARGS, isprintable__doc__},
|
|
{"zfill", (PyCFunction) unicode_zfill, METH_VARARGS, zfill__doc__},
|
|
{"format", (PyCFunction) do_string_format, METH_VARARGS | METH_KEYWORDS, format__doc__},
|
|
{"__format__", (PyCFunction) unicode__format__, METH_VARARGS, p_format__doc__},
|
|
{"_formatter_field_name_split", (PyCFunction) formatter_field_name_split, METH_NOARGS},
|
|
{"_formatter_parser", (PyCFunction) formatter_parser, METH_NOARGS},
|
|
{"maketrans", (PyCFunction) unicode_maketrans,
|
|
METH_VARARGS | METH_STATIC, maketrans__doc__},
|
|
{"__sizeof__", (PyCFunction) unicode__sizeof__, METH_NOARGS, sizeof__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*/
|
|
unicode_mod, /*nb_remainder*/
|
|
};
|
|
|
|
static PySequenceMethods unicode_as_sequence = {
|
|
(lenfunc) unicode_length, /* sq_length */
|
|
PyUnicode_Concat, /* sq_concat */
|
|
(ssizeargfunc) unicode_repeat, /* sq_repeat */
|
|
(ssizeargfunc) unicode_getitem, /* sq_item */
|
|
0, /* sq_slice */
|
|
0, /* sq_ass_item */
|
|
0, /* sq_ass_slice */
|
|
PyUnicode_Contains, /* sq_contains */
|
|
};
|
|
|
|
static PyObject*
|
|
unicode_subscript(PyUnicodeObject* self, PyObject* item)
|
|
{
|
|
if (PyIndex_Check(item)) {
|
|
Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
|
|
if (i == -1 && PyErr_Occurred())
|
|
return NULL;
|
|
if (i < 0)
|
|
i += PyUnicode_GET_SIZE(self);
|
|
return unicode_getitem(self, i);
|
|
} else if (PySlice_Check(item)) {
|
|
Py_ssize_t start, stop, step, slicelength, cur, i;
|
|
Py_UNICODE* source_buf;
|
|
Py_UNICODE* result_buf;
|
|
PyObject* result;
|
|
|
|
if (PySlice_GetIndicesEx((PySliceObject*)item, PyUnicode_GET_SIZE(self),
|
|
&start, &stop, &step, &slicelength) < 0) {
|
|
return NULL;
|
|
}
|
|
|
|
if (slicelength <= 0) {
|
|
return PyUnicode_FromUnicode(NULL, 0);
|
|
} else if (start == 0 && step == 1 && slicelength == self->length &&
|
|
PyUnicode_CheckExact(self)) {
|
|
Py_INCREF(self);
|
|
return (PyObject *)self;
|
|
} else if (step == 1) {
|
|
return PyUnicode_FromUnicode(self->str + start, slicelength);
|
|
} else {
|
|
source_buf = PyUnicode_AS_UNICODE((PyObject*)self);
|
|
result_buf = (Py_UNICODE *)PyObject_MALLOC(slicelength*
|
|
sizeof(Py_UNICODE));
|
|
|
|
if (result_buf == NULL)
|
|
return PyErr_NoMemory();
|
|
|
|
for (cur = start, i = 0; i < slicelength; cur += step, i++) {
|
|
result_buf[i] = source_buf[cur];
|
|
}
|
|
|
|
result = PyUnicode_FromUnicode(result_buf, slicelength);
|
|
PyObject_FREE(result_buf);
|
|
return result;
|
|
}
|
|
} else {
|
|
PyErr_SetString(PyExc_TypeError, "string indices must be integers");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static PyMappingMethods unicode_as_mapping = {
|
|
(lenfunc)unicode_length, /* mp_length */
|
|
(binaryfunc)unicode_subscript, /* mp_subscript */
|
|
(objobjargproc)0, /* mp_ass_subscript */
|
|
};
|
|
|
|
|
|
/* Helpers for PyUnicode_Format() */
|
|
|
|
static PyObject *
|
|
getnextarg(PyObject *args, Py_ssize_t arglen, Py_ssize_t *p_argidx)
|
|
{
|
|
Py_ssize_t 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;
|
|
}
|
|
|
|
/* Returns a new reference to a PyUnicode object, or NULL on failure. */
|
|
|
|
static PyObject *
|
|
formatfloat(PyObject *v, int flags, int prec, int type)
|
|
{
|
|
char *p;
|
|
PyObject *result;
|
|
double x;
|
|
|
|
x = PyFloat_AsDouble(v);
|
|
if (x == -1.0 && PyErr_Occurred())
|
|
return NULL;
|
|
|
|
if (prec < 0)
|
|
prec = 6;
|
|
|
|
p = PyOS_double_to_string(x, type, prec,
|
|
(flags & F_ALT) ? Py_DTSF_ALT : 0, NULL);
|
|
if (p == NULL)
|
|
return NULL;
|
|
result = PyUnicode_FromStringAndSize(p, strlen(p));
|
|
PyMem_Free(p);
|
|
return result;
|
|
}
|
|
|
|
static PyObject*
|
|
formatlong(PyObject *val, int flags, int prec, int type)
|
|
{
|
|
char *buf;
|
|
int len;
|
|
PyObject *str; /* temporary string object. */
|
|
PyObject *result;
|
|
|
|
str = _PyBytes_FormatLong(val, flags, prec, type, &buf, &len);
|
|
if (!str)
|
|
return NULL;
|
|
result = PyUnicode_FromStringAndSize(buf, len);
|
|
Py_DECREF(str);
|
|
return result;
|
|
}
|
|
|
|
static int
|
|
formatchar(Py_UNICODE *buf,
|
|
size_t buflen,
|
|
PyObject *v)
|
|
{
|
|
/* presume that the buffer is at least 3 characters long */
|
|
if (PyUnicode_Check(v)) {
|
|
if (PyUnicode_GET_SIZE(v) == 1) {
|
|
buf[0] = PyUnicode_AS_UNICODE(v)[0];
|
|
buf[1] = '\0';
|
|
return 1;
|
|
}
|
|
#ifndef Py_UNICODE_WIDE
|
|
if (PyUnicode_GET_SIZE(v) == 2) {
|
|
/* Decode a valid surrogate pair */
|
|
int c0 = PyUnicode_AS_UNICODE(v)[0];
|
|
int c1 = PyUnicode_AS_UNICODE(v)[1];
|
|
if (0xD800 <= c0 && c0 <= 0xDBFF &&
|
|
0xDC00 <= c1 && c1 <= 0xDFFF) {
|
|
buf[0] = c0;
|
|
buf[1] = c1;
|
|
buf[2] = '\0';
|
|
return 2;
|
|
}
|
|
}
|
|
#endif
|
|
goto onError;
|
|
}
|
|
else {
|
|
/* Integer input truncated to a character */
|
|
long x;
|
|
x = PyLong_AsLong(v);
|
|
if (x == -1 && PyErr_Occurred())
|
|
goto onError;
|
|
|
|
if (x < 0 || x > 0x10ffff) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"%c arg not in range(0x110000)");
|
|
return -1;
|
|
}
|
|
|
|
#ifndef Py_UNICODE_WIDE
|
|
if (x > 0xffff) {
|
|
x -= 0x10000;
|
|
buf[0] = (Py_UNICODE)(0xD800 | (x >> 10));
|
|
buf[1] = (Py_UNICODE)(0xDC00 | (x & 0x3FF));
|
|
return 2;
|
|
}
|
|
#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 chars are formatted.
|
|
*/
|
|
#define FORMATBUFLEN (size_t)10
|
|
|
|
PyObject *PyUnicode_Format(PyObject *format,
|
|
PyObject *args)
|
|
{
|
|
Py_UNICODE *fmt, *res;
|
|
Py_ssize_t 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 (Py_TYPE(args)->tp_as_mapping && !PyTuple_Check(args) &&
|
|
!PyUnicode_Check(args))
|
|
dict = args;
|
|
|
|
while (--fmtcnt >= 0) {
|
|
if (*fmt != '%') {
|
|
if (--rescnt < 0) {
|
|
rescnt = fmtcnt + 100;
|
|
reslen += rescnt;
|
|
if (_PyUnicode_Resize(&result, reslen) < 0)
|
|
goto onError;
|
|
res = PyUnicode_AS_UNICODE(result) + reslen - rescnt;
|
|
--rescnt;
|
|
}
|
|
*res++ = *fmt++;
|
|
}
|
|
else {
|
|
/* Got a format specifier */
|
|
int flags = 0;
|
|
Py_ssize_t width = -1;
|
|
int prec = -1;
|
|
Py_UNICODE c = '\0';
|
|
Py_UNICODE fill;
|
|
int isnumok;
|
|
PyObject *v = NULL;
|
|
PyObject *temp = NULL;
|
|
Py_UNICODE *pbuf;
|
|
Py_UNICODE sign;
|
|
Py_ssize_t len;
|
|
Py_UNICODE formatbuf[FORMATBUFLEN]; /* For formatchar() */
|
|
|
|
fmt++;
|
|
if (*fmt == '(') {
|
|
Py_UNICODE *keystart;
|
|
Py_ssize_t 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 (!PyLong_Check(v)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"* wants int");
|
|
goto onError;
|
|
}
|
|
width = PyLong_AsLong(v);
|
|
if (width == -1 && PyErr_Occurred())
|
|
goto onError;
|
|
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 (!PyLong_Check(v)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"* wants int");
|
|
goto onError;
|
|
}
|
|
prec = PyLong_AsLong(v);
|
|
if (prec == -1 && PyErr_Occurred())
|
|
goto onError;
|
|
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':
|
|
case 'a':
|
|
if (PyUnicode_Check(v) && c == 's') {
|
|
temp = v;
|
|
Py_INCREF(temp);
|
|
}
|
|
else {
|
|
if (c == 's')
|
|
temp = PyObject_Str(v);
|
|
else if (c == 'r')
|
|
temp = PyObject_Repr(v);
|
|
else
|
|
temp = PyObject_ASCII(v);
|
|
if (temp == NULL)
|
|
goto onError;
|
|
if (PyUnicode_Check(temp))
|
|
/* nothing to do */;
|
|
else {
|
|
Py_DECREF(temp);
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"%s argument has non-string str()");
|
|
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';
|
|
isnumok = 0;
|
|
if (PyNumber_Check(v)) {
|
|
PyObject *iobj=NULL;
|
|
|
|
if (PyLong_Check(v)) {
|
|
iobj = v;
|
|
Py_INCREF(iobj);
|
|
}
|
|
else {
|
|
iobj = PyNumber_Long(v);
|
|
}
|
|
if (iobj!=NULL) {
|
|
if (PyLong_Check(iobj)) {
|
|
isnumok = 1;
|
|
temp = formatlong(iobj, flags, prec, c);
|
|
Py_DECREF(iobj);
|
|
if (!temp)
|
|
goto onError;
|
|
pbuf = PyUnicode_AS_UNICODE(temp);
|
|
len = PyUnicode_GET_SIZE(temp);
|
|
sign = 1;
|
|
}
|
|
else {
|
|
Py_DECREF(iobj);
|
|
}
|
|
}
|
|
}
|
|
if (!isnumok) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"%%%c format: a number is required, "
|
|
"not %.200s", (char)c, Py_TYPE(v)->tp_name);
|
|
goto onError;
|
|
}
|
|
if (flags & F_ZERO)
|
|
fill = '0';
|
|
break;
|
|
|
|
case 'e':
|
|
case 'E':
|
|
case 'f':
|
|
case 'F':
|
|
case 'g':
|
|
case 'G':
|
|
temp = formatfloat(v, flags, prec, c);
|
|
if (!temp)
|
|
goto onError;
|
|
pbuf = PyUnicode_AS_UNICODE(temp);
|
|
len = PyUnicode_GET_SIZE(temp);
|
|
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 %zd",
|
|
(31<=c && c<=126) ? (char)c : '?',
|
|
(int)c,
|
|
(Py_ssize_t)(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_XDECREF(temp);
|
|
PyErr_NoMemory();
|
|
goto onError;
|
|
}
|
|
if (_PyUnicode_Resize(&result, reslen) < 0) {
|
|
Py_XDECREF(temp);
|
|
goto onError;
|
|
}
|
|
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' || c == 'o')) {
|
|
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' || c == 'o')) {
|
|
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");
|
|
Py_XDECREF(temp);
|
|
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 (_PyUnicode_Resize(&result, reslen - rescnt) < 0)
|
|
goto onError;
|
|
if (args_owned) {
|
|
Py_DECREF(args);
|
|
}
|
|
Py_DECREF(uformat);
|
|
return (PyObject *)result;
|
|
|
|
onError:
|
|
Py_XDECREF(result);
|
|
Py_DECREF(uformat);
|
|
if (args_owned) {
|
|
Py_DECREF(args);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
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[] = {"object", "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:str",
|
|
kwlist, &x, &encoding, &errors))
|
|
return NULL;
|
|
if (x == NULL)
|
|
return (PyObject *)_PyUnicode_New(0);
|
|
if (encoding == NULL && errors == NULL)
|
|
return PyObject_Str(x);
|
|
else
|
|
return PyUnicode_FromEncodedObject(x, encoding, errors);
|
|
}
|
|
|
|
static PyObject *
|
|
unicode_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
|
|
{
|
|
PyUnicodeObject *tmp, *pnew;
|
|
Py_ssize_t 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 = (Py_UNICODE*) PyObject_MALLOC(sizeof(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,
|
|
"str(string[, encoding[, errors]]) -> str\n\
|
|
\n\
|
|
Create a new string 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'.");
|
|
|
|
static PyObject *unicode_iter(PyObject *seq);
|
|
|
|
PyTypeObject PyUnicode_Type = {
|
|
PyVarObject_HEAD_INIT(&PyType_Type, 0)
|
|
"str", /* tp_name */
|
|
sizeof(PyUnicodeObject), /* tp_size */
|
|
0, /* tp_itemsize */
|
|
/* Slots */
|
|
(destructor)unicode_dealloc, /* tp_dealloc */
|
|
0, /* tp_print */
|
|
0, /* tp_getattr */
|
|
0, /* tp_setattr */
|
|
0, /* tp_reserved */
|
|
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 */
|
|
0, /* tp_as_buffer */
|
|
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
|
|
Py_TPFLAGS_UNICODE_SUBCLASS, /* tp_flags */
|
|
unicode_doc, /* tp_doc */
|
|
0, /* tp_traverse */
|
|
0, /* tp_clear */
|
|
PyUnicode_RichCompare, /* tp_richcompare */
|
|
0, /* tp_weaklistoffset */
|
|
unicode_iter, /* tp_iter */
|
|
0, /* tp_iternext */
|
|
unicode_methods, /* tp_methods */
|
|
0, /* tp_members */
|
|
0, /* tp_getset */
|
|
&PyBaseObject_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;
|
|
|
|
/* XXX - move this array to unicodectype.c ? */
|
|
Py_UNICODE linebreak[] = {
|
|
0x000A, /* LINE FEED */
|
|
0x000D, /* CARRIAGE RETURN */
|
|
0x001C, /* FILE SEPARATOR */
|
|
0x001D, /* GROUP SEPARATOR */
|
|
0x001E, /* RECORD SEPARATOR */
|
|
0x0085, /* NEXT LINE */
|
|
0x2028, /* LINE SEPARATOR */
|
|
0x2029, /* PARAGRAPH SEPARATOR */
|
|
};
|
|
|
|
/* Init the implementation */
|
|
free_list = NULL;
|
|
numfree = 0;
|
|
unicode_empty = _PyUnicode_New(0);
|
|
if (!unicode_empty)
|
|
return;
|
|
|
|
for (i = 0; i < 256; i++)
|
|
unicode_latin1[i] = NULL;
|
|
if (PyType_Ready(&PyUnicode_Type) < 0)
|
|
Py_FatalError("Can't initialize 'unicode'");
|
|
|
|
/* initialize the linebreak bloom filter */
|
|
bloom_linebreak = make_bloom_mask(
|
|
linebreak, sizeof(linebreak) / sizeof(linebreak[0])
|
|
);
|
|
|
|
PyType_Ready(&EncodingMapType);
|
|
}
|
|
|
|
/* Finalize the Unicode implementation */
|
|
|
|
int
|
|
PyUnicode_ClearFreeList(void)
|
|
{
|
|
int freelist_size = numfree;
|
|
PyUnicodeObject *u;
|
|
|
|
for (u = free_list; u != NULL;) {
|
|
PyUnicodeObject *v = u;
|
|
u = *(PyUnicodeObject **)u;
|
|
if (v->str)
|
|
PyObject_DEL(v->str);
|
|
Py_XDECREF(v->defenc);
|
|
PyObject_Del(v);
|
|
numfree--;
|
|
}
|
|
free_list = NULL;
|
|
assert(numfree == 0);
|
|
return freelist_size;
|
|
}
|
|
|
|
void
|
|
_PyUnicode_Fini(void)
|
|
{
|
|
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;
|
|
}
|
|
}
|
|
(void)PyUnicode_ClearFreeList();
|
|
}
|
|
|
|
void
|
|
PyUnicode_InternInPlace(PyObject **p)
|
|
{
|
|
register PyUnicodeObject *s = (PyUnicodeObject *)(*p);
|
|
PyObject *t;
|
|
if (s == NULL || !PyUnicode_Check(s))
|
|
Py_FatalError(
|
|
"PyUnicode_InternInPlace: unicode strings only please!");
|
|
/* If it's a subclass, we don't really know what putting
|
|
it in the interned dict might do. */
|
|
if (!PyUnicode_CheckExact(s))
|
|
return;
|
|
if (PyUnicode_CHECK_INTERNED(s))
|
|
return;
|
|
if (interned == NULL) {
|
|
interned = PyDict_New();
|
|
if (interned == NULL) {
|
|
PyErr_Clear(); /* Don't leave an exception */
|
|
return;
|
|
}
|
|
}
|
|
/* It might be that the GetItem call fails even
|
|
though the key is present in the dictionary,
|
|
namely when this happens during a stack overflow. */
|
|
Py_ALLOW_RECURSION
|
|
t = PyDict_GetItem(interned, (PyObject *)s);
|
|
Py_END_ALLOW_RECURSION
|
|
|
|
if (t) {
|
|
Py_INCREF(t);
|
|
Py_DECREF(*p);
|
|
*p = t;
|
|
return;
|
|
}
|
|
|
|
PyThreadState_GET()->recursion_critical = 1;
|
|
if (PyDict_SetItem(interned, (PyObject *)s, (PyObject *)s) < 0) {
|
|
PyErr_Clear();
|
|
PyThreadState_GET()->recursion_critical = 0;
|
|
return;
|
|
}
|
|
PyThreadState_GET()->recursion_critical = 0;
|
|
/* The two references in interned are not counted by refcnt.
|
|
The deallocator will take care of this */
|
|
Py_REFCNT(s) -= 2;
|
|
PyUnicode_CHECK_INTERNED(s) = SSTATE_INTERNED_MORTAL;
|
|
}
|
|
|
|
void
|
|
PyUnicode_InternImmortal(PyObject **p)
|
|
{
|
|
PyUnicode_InternInPlace(p);
|
|
if (PyUnicode_CHECK_INTERNED(*p) != SSTATE_INTERNED_IMMORTAL) {
|
|
PyUnicode_CHECK_INTERNED(*p) = SSTATE_INTERNED_IMMORTAL;
|
|
Py_INCREF(*p);
|
|
}
|
|
}
|
|
|
|
PyObject *
|
|
PyUnicode_InternFromString(const char *cp)
|
|
{
|
|
PyObject *s = PyUnicode_FromString(cp);
|
|
if (s == NULL)
|
|
return NULL;
|
|
PyUnicode_InternInPlace(&s);
|
|
return s;
|
|
}
|
|
|
|
void _Py_ReleaseInternedUnicodeStrings(void)
|
|
{
|
|
PyObject *keys;
|
|
PyUnicodeObject *s;
|
|
Py_ssize_t i, n;
|
|
Py_ssize_t immortal_size = 0, mortal_size = 0;
|
|
|
|
if (interned == NULL || !PyDict_Check(interned))
|
|
return;
|
|
keys = PyDict_Keys(interned);
|
|
if (keys == NULL || !PyList_Check(keys)) {
|
|
PyErr_Clear();
|
|
return;
|
|
}
|
|
|
|
/* Since _Py_ReleaseInternedUnicodeStrings() is intended to help a leak
|
|
detector, interned unicode strings are not forcibly deallocated;
|
|
rather, we give them their stolen references back, and then clear
|
|
and DECREF the interned dict. */
|
|
|
|
n = PyList_GET_SIZE(keys);
|
|
fprintf(stderr, "releasing %" PY_FORMAT_SIZE_T "d interned strings\n",
|
|
n);
|
|
for (i = 0; i < n; i++) {
|
|
s = (PyUnicodeObject *) PyList_GET_ITEM(keys, i);
|
|
switch (s->state) {
|
|
case SSTATE_NOT_INTERNED:
|
|
/* XXX Shouldn't happen */
|
|
break;
|
|
case SSTATE_INTERNED_IMMORTAL:
|
|
Py_REFCNT(s) += 1;
|
|
immortal_size += s->length;
|
|
break;
|
|
case SSTATE_INTERNED_MORTAL:
|
|
Py_REFCNT(s) += 2;
|
|
mortal_size += s->length;
|
|
break;
|
|
default:
|
|
Py_FatalError("Inconsistent interned string state.");
|
|
}
|
|
s->state = SSTATE_NOT_INTERNED;
|
|
}
|
|
fprintf(stderr, "total size of all interned strings: "
|
|
"%" PY_FORMAT_SIZE_T "d/%" PY_FORMAT_SIZE_T "d "
|
|
"mortal/immortal\n", mortal_size, immortal_size);
|
|
Py_DECREF(keys);
|
|
PyDict_Clear(interned);
|
|
Py_DECREF(interned);
|
|
interned = NULL;
|
|
}
|
|
|
|
|
|
/********************* Unicode Iterator **************************/
|
|
|
|
typedef struct {
|
|
PyObject_HEAD
|
|
Py_ssize_t it_index;
|
|
PyUnicodeObject *it_seq; /* Set to NULL when iterator is exhausted */
|
|
} unicodeiterobject;
|
|
|
|
static void
|
|
unicodeiter_dealloc(unicodeiterobject *it)
|
|
{
|
|
_PyObject_GC_UNTRACK(it);
|
|
Py_XDECREF(it->it_seq);
|
|
PyObject_GC_Del(it);
|
|
}
|
|
|
|
static int
|
|
unicodeiter_traverse(unicodeiterobject *it, visitproc visit, void *arg)
|
|
{
|
|
Py_VISIT(it->it_seq);
|
|
return 0;
|
|
}
|
|
|
|
static PyObject *
|
|
unicodeiter_next(unicodeiterobject *it)
|
|
{
|
|
PyUnicodeObject *seq;
|
|
PyObject *item;
|
|
|
|
assert(it != NULL);
|
|
seq = it->it_seq;
|
|
if (seq == NULL)
|
|
return NULL;
|
|
assert(PyUnicode_Check(seq));
|
|
|
|
if (it->it_index < PyUnicode_GET_SIZE(seq)) {
|
|
item = PyUnicode_FromUnicode(
|
|
PyUnicode_AS_UNICODE(seq)+it->it_index, 1);
|
|
if (item != NULL)
|
|
++it->it_index;
|
|
return item;
|
|
}
|
|
|
|
Py_DECREF(seq);
|
|
it->it_seq = NULL;
|
|
return NULL;
|
|
}
|
|
|
|
static PyObject *
|
|
unicodeiter_len(unicodeiterobject *it)
|
|
{
|
|
Py_ssize_t len = 0;
|
|
if (it->it_seq)
|
|
len = PyUnicode_GET_SIZE(it->it_seq) - it->it_index;
|
|
return PyLong_FromSsize_t(len);
|
|
}
|
|
|
|
PyDoc_STRVAR(length_hint_doc, "Private method returning an estimate of len(list(it)).");
|
|
|
|
static PyMethodDef unicodeiter_methods[] = {
|
|
{"__length_hint__", (PyCFunction)unicodeiter_len, METH_NOARGS,
|
|
length_hint_doc},
|
|
{NULL, NULL} /* sentinel */
|
|
};
|
|
|
|
PyTypeObject PyUnicodeIter_Type = {
|
|
PyVarObject_HEAD_INIT(&PyType_Type, 0)
|
|
"str_iterator", /* tp_name */
|
|
sizeof(unicodeiterobject), /* tp_basicsize */
|
|
0, /* tp_itemsize */
|
|
/* methods */
|
|
(destructor)unicodeiter_dealloc, /* tp_dealloc */
|
|
0, /* tp_print */
|
|
0, /* tp_getattr */
|
|
0, /* tp_setattr */
|
|
0, /* tp_reserved */
|
|
0, /* tp_repr */
|
|
0, /* tp_as_number */
|
|
0, /* tp_as_sequence */
|
|
0, /* tp_as_mapping */
|
|
0, /* tp_hash */
|
|
0, /* tp_call */
|
|
0, /* tp_str */
|
|
PyObject_GenericGetAttr, /* tp_getattro */
|
|
0, /* tp_setattro */
|
|
0, /* tp_as_buffer */
|
|
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
|
|
0, /* tp_doc */
|
|
(traverseproc)unicodeiter_traverse, /* tp_traverse */
|
|
0, /* tp_clear */
|
|
0, /* tp_richcompare */
|
|
0, /* tp_weaklistoffset */
|
|
PyObject_SelfIter, /* tp_iter */
|
|
(iternextfunc)unicodeiter_next, /* tp_iternext */
|
|
unicodeiter_methods, /* tp_methods */
|
|
0,
|
|
};
|
|
|
|
static PyObject *
|
|
unicode_iter(PyObject *seq)
|
|
{
|
|
unicodeiterobject *it;
|
|
|
|
if (!PyUnicode_Check(seq)) {
|
|
PyErr_BadInternalCall();
|
|
return NULL;
|
|
}
|
|
it = PyObject_GC_New(unicodeiterobject, &PyUnicodeIter_Type);
|
|
if (it == NULL)
|
|
return NULL;
|
|
it->it_index = 0;
|
|
Py_INCREF(seq);
|
|
it->it_seq = (PyUnicodeObject *)seq;
|
|
_PyObject_GC_TRACK(it);
|
|
return (PyObject *)it;
|
|
}
|
|
|
|
size_t
|
|
Py_UNICODE_strlen(const Py_UNICODE *u)
|
|
{
|
|
int res = 0;
|
|
while(*u++)
|
|
res++;
|
|
return res;
|
|
}
|
|
|
|
Py_UNICODE*
|
|
Py_UNICODE_strcpy(Py_UNICODE *s1, const Py_UNICODE *s2)
|
|
{
|
|
Py_UNICODE *u = s1;
|
|
while ((*u++ = *s2++));
|
|
return s1;
|
|
}
|
|
|
|
Py_UNICODE*
|
|
Py_UNICODE_strncpy(Py_UNICODE *s1, const Py_UNICODE *s2, size_t n)
|
|
{
|
|
Py_UNICODE *u = s1;
|
|
while ((*u++ = *s2++))
|
|
if (n-- == 0)
|
|
break;
|
|
return s1;
|
|
}
|
|
|
|
int
|
|
Py_UNICODE_strcmp(const Py_UNICODE *s1, const Py_UNICODE *s2)
|
|
{
|
|
while (*s1 && *s2 && *s1 == *s2)
|
|
s1++, s2++;
|
|
if (*s1 && *s2)
|
|
return (*s1 < *s2) ? -1 : +1;
|
|
if (*s1)
|
|
return 1;
|
|
if (*s2)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
Py_UNICODE*
|
|
Py_UNICODE_strchr(const Py_UNICODE *s, Py_UNICODE c)
|
|
{
|
|
const Py_UNICODE *p;
|
|
for (p = s; *p; p++)
|
|
if (*p == c)
|
|
return (Py_UNICODE*)p;
|
|
return NULL;
|
|
}
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
/*
|
|
Local variables:
|
|
c-basic-offset: 4
|
|
indent-tabs-mode: nil
|
|
End:
|
|
*/
|