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1647 commits

Author SHA1 Message Date
Serhiy Storchaka
413fdcea21 Issue #24821: Refactor STRINGLIB(fastsearch_memchr_1char) and split it on 
STRINGLIB(find_char) and STRINGLIB(rfind_char) that can be used independedly
without special preconditions.
 2015-11-14 15:42:17 +02:00
Serhiy Storchaka
4a7c03aab4 Issue #25523: Merge a-to-an corrections from 3.5. 2015-11-02 14:44:29 +02:00
Serhiy Storchaka
a84f6c3dd3 Issue #25523: Merge a-to-an corrections from 3.4. 2015-11-02 14:39:05 +02:00
Serhiy Storchaka
d65c9496da Issue #25523: Further a-to-an corrections. 2015-11-02 14:10:23 +02:00
Victor Stinner
358af13526 Issue #25353: Optimize unicode escape and raw unicode escape encoders to use 
the new _PyBytesWriter API.
 2015-10-12 22:36:57 +02:00
Victor Stinner
6c2cdae9e6 Writer APIs: use empty string singletons 
Modify _PyBytesWriter_Finish() and _PyUnicodeWriter_Finish() to return the
empty bytes/Unicode string if the string is empty.
 2015-10-12 13:29:43 +02:00
Victor Stinner
6bd525b656 Optimize error handlers of ASCII and Latin1 encoders when the replacement 
string is pure ASCII: use _PyBytesWriter_WriteBytes(), don't check individual
character.

Cleanup unicode_encode_ucs1():

* Rename repunicode to rep
* Clear rep object on error
* Factorize code between bytes and unicode path
 2015-10-09 13:10:05 +02:00
Victor Stinner
ce179bf6ba Add _PyBytesWriter_WriteBytes() to factorize the code 2015-10-09 12:57:22 +02:00
Victor Stinner
ad7715891e _PyBytesWriter: simplify code to avoid "prealloc" parameters 
Substract preallocate bytes from min_size before calling
_PyBytesWriter_Prepare().
 2015-10-09 12:38:53 +02:00
Victor Stinner
3fa36ff5e4 Issue #25318: Fix backslashreplace() 
Fix code to estimate the needed space.
 2015-10-09 03:37:11 +02:00
Victor Stinner
797485e101 Issue #25318: Avoid sprintf() in backslashreplace() 
Rewrite backslashreplace() to be closer to PyCodec_BackslashReplaceErrors().

Add also unit tests for non-BMP characters.
 2015-10-09 03:17:30 +02:00
Victor Stinner
0016507c16 Issue #25318: Move _PyBytesWriter to bytesobject.c 
Declare also the private API in bytesobject.h.
 2015-10-09 01:53:21 +02:00
Victor Stinner
e7bf86cd7d Optimize backslashreplace error handler 
Issue #25318: Optimize backslashreplace and xmlcharrefreplace error handlers in
UTF-8 encoder. Optimize also backslashreplace error handler for ASCII and
Latin1 encoders.

Use the new _PyBytesWriter API to optimize these error handlers for the
encoders. It avoids to create an exception and call the slow implementation of
the error handler.
 2015-10-09 01:39:28 +02:00
Victor Stinner
fdfbf78114 Issue #25318: Add _PyBytesWriter API 
Add a new private API to optimize Unicode encoders. It uses a small buffer
allocated on the stack and supports overallocation.

Use _PyBytesWriter API for UCS1 (ASCII and Latin1) and UTF-8 encoders. Enable
overallocation for the UTF-8 encoder with error handlers.

unicode_encode_ucs1(): initialize collend to collstart+1 to not check the
current character twice, we already know that it is not ASCII.
 2015-10-09 00:33:49 +02:00
Victor Stinner
74e8fac3c8 Issue #25301: Fix compatibility with ISO C90 2015-10-05 13:49:26 +02:00
Victor Stinner
1d65d9192d Issue #25301: The UTF-8 decoder is now up to 15 times as fast for error 
handlers: ``ignore``, ``replace`` and ``surrogateescape``.
 2015-10-05 13:43:50 +02:00
Victor Stinner
eb36fdaad8 Fix _PyUnicodeWriter_PrepareKind() 
Initialize kind to 0 (PyUnicode_WCHAR_KIND) to ensure that
_PyUnicodeWriter_PrepareKind() handles correctly read-only buffer: copy the
buffer.
 2015-10-03 01:55:51 +02:00
Serhiy Storchaka
29e68edbf4 Issue #24848: Fixed bugs in UTF-7 decoding of misformed data: 
1. Non-ASCII bytes were accepted after shift sequence.
2. A low surrogate could be emitted in case of error in high surrogate.
3. In some circumstances the '\xfd' character was produced instead of the
replacement character '\ufffd' (due to a bug in _PyUnicodeWriter).
 2015-10-02 13:14:03 +03:00
Serhiy Storchaka
58c8f2bb6d Issue #24848: Fixed bugs in UTF-7 decoding of misformed data: 
1. Non-ASCII bytes were accepted after shift sequence.
2. A low surrogate could be emitted in case of error in high surrogate.
3. In some circumstances the '\xfd' character was produced instead of the
replacement character '\ufffd' (due to a bug in _PyUnicodeWriter).
 2015-10-02 13:13:14 +03:00
Serhiy Storchaka
28b21e50c8 Issue #24848: Fixed bugs in UTF-7 decoding of misformed data: 
1. Non-ASCII bytes were accepted after shift sequence.
2. A low surrogate could be emitted in case of error in high surrogate.
 2015-10-02 13:07:28 +03:00
Victor Stinner
3222da26fe Make _PyUnicode_TranslateCharmap() symbol private 
unicodeobject.h exposes PyUnicode_TranslateCharmap() and PyUnicode_Translate().
 2015-10-01 22:07:32 +02:00
Victor Stinner
01ada3996b Issue #25267: The UTF-8 encoder is now up to 75 times as fast for error 
handlers: ``ignore``, ``replace``, ``surrogateescape``, ``surrogatepass``.
Patch co-written with Serhiy Storchaka.
 2015-10-01 21:54:51 +02:00
Victor Stinner
c3713e9706 Optimize ascii/latin1+surrogateescape encoders 
Issue #25227: Optimize ASCII and latin1 encoders with the ``surrogateescape``
error handler: the encoders are now up to 3 times as fast.

Initial patch written by Serhiy Storchaka.
 2015-09-29 12:32:13 +02:00
Victor Stinner
0030cd52da Issue #25227: Cleanup unicode_encode_ucs1() error handler 
* Change limit type from unsigned int to Py_UCS4, to use the same type than the
  "ch" variable (an Unicode character).
* Reuse ch variable for _Py_ERROR_XMLCHARREFREPLACE
* Add some newlines for readability
 2015-09-24 14:45:00 +02:00
Victor Stinner
54385b206d Issue #24870: revert unwanted change 
Sorry, I pushed the patch on the UTF-8 decoder by mistake :-(
 2015-09-22 10:46:52 +02:00
Victor Stinner
5ebae87628 Issue #25207, #14626: Fix my commit. 
It doesn't work to use #define XXX defined(YYY)" and then "#ifdef XXX"
to check YYY.
 2015-09-22 01:29:33 +02:00
Victor Stinner
6174474bea _PyUnicodeWriter_PrepareInternal(): make the assertion more strict 2015-09-22 01:01:17 +02:00
Victor Stinner
ca9381ea01 Issue #24870: Add _PyUnicodeWriter_PrepareKind() macro 
Add a macro which ensures that the writer has at least the requested kind.
 2015-09-22 00:58:32 +02:00
Victor Stinner
5014920cb7 Issue #24870: Reuse the new _Py_error_handler enum 
Factorize code with the new get_error_handler() function.

Add some empty lines for readability.
 2015-09-22 00:26:54 +02:00
Victor Stinner
f96418de05 Issue #24870: Optimize the ASCII decoder for error handlers: surrogateescape, 
ignore and replace. Initial patch written by Naoki Inada.

The decoder is now up to 60 times as fast for these error handlers.

Add also unit tests for the ASCII decoder.
 2015-09-21 23:06:27 +02:00
Zachary Ware
070bd62cfa Closes #21279: Merge with 3.5 2015-08-06 00:05:13 -05:00
Zachary Ware
d987a81d29 Issue #21279: Merge with 3.4 2015-08-06 00:04:23 -05:00
Zachary Ware
79b98df023 Issue #21279: Flesh out str.translate docs 
Initial patch by Kinga Farkas, Martin Panter, and John Posner.
 2015-08-05 23:54:15 -05:00
Raymond Hettinger
ac2ef65c32 Make the unicode equality test an external function rather than in-lining it. 
The real benefit of the unicode specialized function comes from
bypassing the overhead of PyObject_RichCompareBool() and not
from being in-lined (especially since there was almost no shared
data between the caller and callee).  Also, the in-lining was
having a negative effect on code generation for the callee.
 2015-07-04 16:04:44 -07:00
Serhiy Storchaka
d4ea03c785 Issue #24284: The startswith and endswith methods of the str class no longer 
return True when finding the empty string and the indexes are completely out
of range.
 2015-05-31 09:15:51 +03:00
Antoine Pitrou
873e0df946 Fix some compilation warnings when using gcc (-Wmaybe-uninitialized). 2015-05-19 21:06:04 +02:00
Antoine Pitrou
f6d1f1fa8a Fix some compilation warnings when using gcc (-Wmaybe-uninitialized). 2015-05-19 21:04:33 +02:00
Serhiy Storchaka
0d4df752ac Issue #15027: The UTF-32 encoder is now 3x to 7x faster. 2015-05-12 23:12:45 +03:00
Serhiy Storchaka
7e9d1d1a1b Issue #23908: os functions now reject paths with embedded null character 
on Windows instead of silently truncate them.

Removed no longer used _PyUnicode_HasNULChars().
 2015-04-20 10:12:28 +03:00
Serhiy Storchaka
1009bf18b3 Issue #23501: Argumen Clinic now generates code into separate files by default. 2015-04-03 23:53:51 +03:00
Victor Stinner
1912b39def _PyUnicodeWriter_WriteStr() now checks that the input string is consistent 
in debug mode to detect bugs earlier.

_PyUnicodeWriter_Finish() doesn't check if the read only string is consistent,
whereas it does check consistency for strings built by itself.
 2015-03-26 09:37:23 +01:00
Serhiy Storchaka
d9d769fcdd Issue #23573: Increased performance of string search operations (str.find, 
str.index, str.count, the in operator, str.split, str.partition) with
arguments of different kinds (UCS1, UCS2, UCS4).
 2015-03-24 21:55:47 +02:00
Victor Stinner
f50e187724 Fix compiler warnings: comparison between signed and unsigned numbers 2015-03-20 11:32:24 +01:00
Victor Stinner
0c39b1b970 Initialize variables to prevent GCC warnings 2015-03-18 15:02:06 +01:00
Benjamin Peterson
e5a853c390 use PyMem_NEW to detect overflow (closes #23362) 2015-03-02 13:23:25 -05:00
Steve Dower
3e96f324dc Issue #23451: Update pyconfig.h for Windows to require Vista headers and remove unnecessary version checks. 2015-03-02 08:01:10 -08:00
Serhiy Storchaka
78a8249127 Issue #23490: Fixed possible crashes related to interoperability between 
old-style and new API for string with 2**30-1 characters.
 2015-02-20 21:34:39 +02:00
Serhiy Storchaka
e55181f517 Issue #23490: Fixed possible crashes related to interoperability between 
old-style and new API for string with 2**30-1 characters.
 2015-02-20 21:34:06 +02:00
Serhiy Storchaka
4d0d982985 Issue #23446: Use PyMem_New instead of PyMem_Malloc to avoid possible integer 
overflows.  Added few missed PyErr_NoMemory().
 2015-02-16 13:33:32 +02:00
Serhiy Storchaka
1a1ff29659 Issue #23446: Use PyMem_New instead of PyMem_Malloc to avoid possible integer 
overflows.  Added few missed PyErr_NoMemory().
 2015-02-16 13:28:22 +02:00