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1113 commits

Author SHA1 Message Date
Victor Stinner
4560f9c63f PyUnicode_Join(): move use_memcpy test out of the loop to cleanup and optimize the code 2013-04-14 18:56:46 +02:00
Victor Stinner
55c08781e8 Optimize repr(str): use _PyUnicode_FastCopyCharacters() when no character is escaped 2013-04-14 18:45:39 +02:00
Victor Stinner
af03757d20 Optimize ascii(str): don't encode/decode repr if repr is already ASCII 2013-04-14 18:44:10 +02:00
Victor Stinner
8a1a6cffd6 Add _PyUnicodeWriter_WriteCharInline() 2013-04-14 02:35:33 +02:00
Serhiy Storchaka
e2cef885a2 Issue #16061: Speed up str.replace() for replacing 1-character strings. 2013-04-13 22:45:04 +03:00
Victor Stinner
a0dd0213cc Close #17693: Rewrite CJK decoders to use the _PyUnicodeWriter API instead of 
the legacy Py_UNICODE API.

Add also a new _PyUnicodeWriter_WriteChar() function.
 2013-04-11 22:09:04 +02:00
Victor Stinner
247109e74d Issue #17615: On Windows (VS2010), Performances of wmemcmp() to compare Unicode 
strings are not convincing. For UCS2 (16-bit wchar_t type), use a dummy loop
instead of wmemcmp(). The dummy loop is as fast, or a little bit faster.

wchar_t is only 16-bit long on Windows. wmemcmp() is still used for 32-bit
wchar_t.
 2013-04-09 23:53:26 +02:00
Victor Stinner
0cff4b16d9 replace(): only call PyUnicode_DATA(u) once 2013-04-09 22:52:48 +02:00
Victor Stinner
cc7af72192 Write super-fast version of str.strip(), str.lstrip() and str.rstrip() for pure ASCII 2013-04-09 22:39:24 +02:00
Victor Stinner
f50a4e9bc9 Don't calls macros in PyUnicode_WRITE() parameters 
PyUnicode_WRITE() expands some parameters twice or more.
 2013-04-09 22:38:52 +02:00
Victor Stinner
9c79e41fc5 Fix do_strip(): don't call PyUnicode_READ() in Py_UNICODE_ISSPACE() to not call 
it twice
 2013-04-09 22:21:08 +02:00
Victor Stinner
b3a6014504 Fix _PyUnicode_XStrip() 
Inline the BLOOM_MEMBER() to only call PyUnicode_READ() only once (per loop
iteration). Store also the length of the seperator in a variable to avoid calls
to PyUnicode_GET_LENGTH().
 2013-04-09 22:19:21 +02:00
Victor Stinner
63d5c1a14a Optimize PyUnicode_DecodeCharmap() 
Avoid expensive PyUnicode_READ() and PyUnicode_WRITE(), manipulate pointers
instead.
 2013-04-09 22:13:33 +02:00
Victor Stinner
a85af502a4 Optimize make_bloom_mask(), used by str.strip(), str.lstrip() and str.rstrip() 
Write specialized functions per Unicode kind to avoid the expensive
PyUnicode_READ() macro.
 2013-04-09 21:53:54 +02:00
Victor Stinner
69ed0f4c86 Use PyUnicode_READ() instead of PyUnicode_READ_CHAR() 
"PyUnicode_READ_CHAR() is less efficient than PyUnicode_READ() because it calls
PyUnicode_KIND() and might call it twice." according to its documentation.
 2013-04-09 21:48:24 +02:00
Victor Stinner
03c3e35d42 Add fast-path in PyUnicode_DecodeCharmap() for pure 8 bit encodings: 
cp037, cp500 and iso8859_1 codecs
 2013-04-09 21:53:09 +02:00
Victor Stinner
cd777eaf53 Issue #17615: Comparing two Unicode strings now uses wmemcmp() when possible 
wmemcmp() is twice faster than a dummy loop (342 usec vs 744 usec) on Fedora
18/x86_64, GCC 4.7.2.
 2013-04-08 22:43:44 +02:00
Victor Stinner
c1302bba4c Issue #17615: Expand expensive PyUnicode_READ() macro in unicode_compare(): 
write specialized functions for each combination of Unicode kinds.
 2013-04-08 21:50:54 +02:00
Victor Stinner
207dd38726 fix unused variable 2013-04-03 03:14:58 +02:00
Victor Stinner
eb4b5ac8af Close #16757: Avoid calling the expensive _PyUnicode_FindMaxChar() function 
when possible
 2013-04-03 02:02:33 +02:00
Victor Stinner
cfc4c13b04 Add _PyUnicodeWriter_WriteSubstring() function 
Write a function to enable more optimizations:

 * If the substring is the whole string and overallocation is disabled, just
   keep a reference to the string, don't copy characters
 * Avoid a call to the expensive _PyUnicode_FindMaxChar() function when
   possible
 2013-04-03 01:48:39 +02:00
Raymond Hettinger
51612fd803 merge 2013-03-23 08:21:52 -07:00
Raymond Hettinger
378170d5d9 Issue 17447: Clarify that str.isidentifier doesn't check for reserved keywords. 2013-03-23 08:21:12 -07:00
Victor Stinner
fb84b5d48d (Merge 3.3) _PyUnicode_Writer() now also reuses Unicode singletons: 
empty string and latin1 single character
 2013-03-06 19:29:09 +01:00
Victor Stinner
2cb16aa3cb _PyUnicode_Writer() now also reuses Unicode singletons: 
empty string and latin1 single character
 2013-03-06 19:28:37 +01:00
Victor Stinner
cf77da9fb5 Backed out changeset b9f7b1bf36aa 2013-03-06 01:09:24 +01:00
Victor Stinner
313cac88c5 Issue #17223: Fix PyUnicode_FromUnicode() on Windows (16-bit wchar_t type) 
to reject invalid UTF-16 surrogate.
 2013-03-06 00:41:50 +01:00
Victor Stinner
36025478bf (Merge 3.3) Issue #17223: Fix PyUnicode_FromUnicode() for string of 1 character 
outside the range U+0000-U+10ffff.
 2013-02-26 00:16:57 +01:00
Victor Stinner
d21b58c05d Issue #17223: Fix PyUnicode_FromUnicode() for string of 1 character outside 
the range U+0000-U+10ffff.
 2013-02-26 00:15:54 +01:00
Victor Stinner
cfd2c1b4cc (Merge 3.3) Issue #17137: When an Unicode string is resized, the internal wide 
character string (wstr) format is now cleared.
 2013-02-07 23:17:34 +01:00
Victor Stinner
bbbac2ec34 Issue #17137: When an Unicode string is resized, the internal wide character 
string (wstr) format is now cleared.
 2013-02-07 23:12:46 +01:00
Serhiy Storchaka
d0c79dcda5 Issue #17043: The unicode-internal decoder no longer read past the end of 
input buffer.
 2013-02-07 16:26:55 +02:00
Serhiy Storchaka
03ee12ed72 Issue #17043: The unicode-internal decoder no longer read past the end of 
input buffer.
 2013-02-07 16:25:25 +02:00
Serhiy Storchaka
3fd4ab356d Issue #17043: The unicode-internal decoder no longer read past the end of 
input buffer.
 2013-02-07 16:23:21 +02:00
Serhiy Storchaka
2aee6a6460 Issue #16971: Fix a refleak in the charmap decoder. 2013-01-29 12:16:57 +02:00
Serhiy Storchaka
afb1cb5579 Issue #16971: Fix a refleak in the charmap decoder. 2013-01-29 12:13:22 +02:00
Serhiy Storchaka
8fe5a9f9c3 Issue #16979: Fix error handling bugs in the unicode-escape-decode decoder. 2013-01-29 10:37:39 +02:00
Serhiy Storchaka
24193debd4 Issue #16979: Fix error handling bugs in the unicode-escape-decode decoder. 2013-01-29 10:28:07 +02:00
Serhiy Storchaka
d679377be7 Issue #16979: Fix error handling bugs in the unicode-escape-decode decoder. 2013-01-29 10:20:44 +02:00
Serhiy Storchaka
ed3c4128c0 Issue #10156: In the interpreter's initialization phase, unicode globals 
are now initialized dynamically as needed.
 2013-01-26 12:18:17 +02:00
Serhiy Storchaka
678db84b37 Issue #10156: In the interpreter's initialization phase, unicode globals 
are now initialized dynamically as needed.
 2013-01-26 12:16:36 +02:00
Serhiy Storchaka
059972535f Issue #10156: In the interpreter's initialization phase, unicode globals 
are now initialized dynamically as needed.
 2013-01-26 12:14:02 +02:00
Serhiy Storchaka
570c5b2354 Issue #16980: Fix processing of escaped non-ascii bytes in the 
unicode-escape-decode decoder.
 2013-01-25 23:53:29 +02:00
Serhiy Storchaka
73e38809e0 Issue #16980: Fix processing of escaped non-ascii bytes in the 
unicode-escape-decode decoder.
 2013-01-25 23:52:21 +02:00
Serhiy Storchaka
6481bfb2b5 Issue #16335: Fix integer overflow in unicode-escape decoder. 2013-01-21 11:44:40 +02:00
Serhiy Storchaka
c35f3a9f61 Issue #16335: Fix integer overflow in unicode-escape decoder. 2013-01-21 11:42:57 +02:00
Serhiy Storchaka
4f5f0e54e0 Issue #16335: Fix integer overflow in unicode-escape decoder. 2013-01-21 11:38:00 +02:00
Serhiy Storchaka
441d30fac7 Issue #15989: Fix several occurrences of integer overflow 
when result of PyLong_AsLong() narrowed to int without checks.

This is a backport of changesets 13e2e44db99d and 525407d89277.
 2013-01-19 12:26:26 +02:00
Serhiy Storchaka
9101e23ff6 Issue #15989: Fix several occurrences of integer overflow 
when result of PyLong_AsLong() narrowed to int without checks.

This is a backport of changesets 13e2e44db99d and 525407d89277.
 2013-01-19 12:41:45 +02:00
Serhiy Storchaka
55e2cb497b Issue #14850: Now a chamap decoder treates U+FFFE as "undefined mapping" 
in any mapping, not only in an unicode string.
 2013-01-15 15:30:04 +02:00