Commit Graph

55 Commits

Author SHA1 Message Date
Andrew M. Kuchling c30faa812c [Bug #1177831] Fix generation of code for GROUPREF_EXISTS. Thanks to Andre Malo for the fix. 2005-06-02 13:35:52 +00:00
Raymond Hettinger 049ade2997 Complete the previous effort to factor out constant expressions
and improve the speed of the if/elif/else blocks.
2005-02-28 19:27:52 +00:00
Fredrik Lundh 5e7d51b62c make sure to check for this limit even if we're running with -O 2004-10-15 06:15:08 +00:00
Martin v. Löwis 7d9c6c7e8c Fix _sre.CODESIZE on 64-bit machines in UCS-4 mode. Fixes #931848.
Backported to 2.3.
2004-05-07 07:18:13 +00:00
Raymond Hettinger d732c95eb0 Revert 1.51 booleans so that sre will still run on old pythons. 2004-03-27 09:24:36 +00:00
Raymond Hettinger 29e383754e Remove unnecessary test. (Thanks Skip) 2004-03-26 20:16:39 +00:00
Raymond Hettinger 01c9f8c35f Simple optimizations:
* pre-build a single identity function for the fixup function
* pre-build membership tests in dictionaries instead of in-line tuples
* assign len() to a local variable
* assign append() methods to a local variable
* use xrange() instead of range()
* replace "x<<1" with "x+x"
2004-03-26 11:16:55 +00:00
Martin v. Löwis bc503d1e90 Use True/False instead of 0/1 for character classes. 2004-03-25 13:50:59 +00:00
Gustavo Niemeyer ad3fc44ccb Implemented non-recursive SRE matching. 2003-10-17 22:13:16 +00:00
Just van Rossum 74902508dc Addendum to #764548: restore 2.1 compatibility. 2003-07-02 21:37:16 +00:00
Just van Rossum 12723bacea Fix and test for bug #764548:
Use isinstance() instead of comparing types directly, to enable
subclasses of str and unicode to be used as patterns.
Blessed by /F.
2003-07-02 20:03:04 +00:00
Martin v. Löwis 78e2f06cc6 Fully support 32-bit codes. Enable BIGCHARSET in UCS-4 builds. 2003-04-19 12:56:08 +00:00
Guido van Rossum 41c99e7f96 SF patch #720991 by Gary Herron:
A small fix for bug #545855 and Greg Chapman's
addition of op code SRE_OP_MIN_REPEAT_ONE for
eliminating recursion on simple uses of pattern '*?' on a
long string.
2003-04-14 17:59:34 +00:00
Guido van Rossum 577fb5a1db Fix from SF patch #633359 by Greg Chapman for SF bug #610299:
The problem is in sre_compile.py: the call to
    _compile_charset near the end of _compile_info forgets to
    pass in the flags, so that the info charset is not compiled
    with re.U. (The info charset is used when searching to find
    the first character at which a match could start; it is not
    generated for patterns beginning with a repeat like '\w{1}'.)
2003-02-24 01:18:35 +00:00
Martin v. Löwis 67c4cb1f13 Disable big charsets in UCS-4 builds. Works around #599377.
Will backport to 2.2
2002-09-26 16:39:20 +00:00
Fredrik Lundh 4fb7027ec0 made the code match the comments (1.5.2 compatibility) 2002-06-27 20:08:25 +00:00
Raymond Hettinger f13eb55d59 Replace boolean test with is None. 2002-06-02 00:40:05 +00:00
Fred Drake b8f2274985 Added docstrings by Neal Norwitz. This closes SF bug #450980. 2001-09-04 19:10:20 +00:00
Tim Peters 87cc0c329e Whitespace normalization, plus:
+ test_quopri.py relied on significant trailing spaces.  Fixed.
+ test_dircache.py (still) doesn't work on Windows (directory mtime on
  Windows doesn't work like it does on Unix).
2001-07-21 01:41:30 +00:00
Martin v. Löwis 3550dd30bb Patch #442512: put block indices in the right byte order on bigendian systems. 2001-07-19 14:26:10 +00:00
Fredrik Lundh 19af43d78a added martin's BIGCHARSET patch to SRE 2.1.1. martin reports 2x
speedups for certain unicode character ranges.
2001-07-02 16:58:38 +00:00
Fredrik Lundh b25e1ad253 sre 2.1b2 update:
- take locale into account for word boundary anchors (#410271)
- restored 2.0's *? behaviour (#233283, #408936 and others)
- speed up re.sub/re.subn
2001-03-22 15:50:10 +00:00
Fredrik Lundh f2989b22ff - restored 1.5.2 compatibility (sorry, eric)
- removed __all__ cruft from internal modules (sorry, skip)
- don't assume ASCII for string escapes (sorry, per)
2001-02-18 12:05:16 +00:00
Skip Montanaro 0de65807e6 bunch more __all__ lists
also modified check_all function to suppress all warnings since they aren't
relevant to what this test is doing (allows quiet checking of regsub, for
instance)
2001-02-15 22:15:14 +00:00
Fredrik Lundh 2e24044f9d from the really-stupid-bug department: uppercase literals should match
uppercase strings also when the IGNORECASE flag is set (bug #128899)

(also added test cases for recently fixed bugs to the regression suite
-- or in other words, check in re_tests.py too...)
2001-01-15 18:28:14 +00:00
Fredrik Lundh b35ffc0417 added "magic" number to the _sre module, to avoid weird errors caused
by compiler/engine mismatches
2001-01-15 12:46:09 +00:00
Fredrik Lundh 770617b23e SRE fixes for 2.1 alpha:
-- added some more docstrings
-- fixed typo in scanner class (#125531)
-- the multiline flag (?m) should't affect the \Z operator (#127259)
-- fixed non-greedy backtracking bug (#123769, #127259)
-- added sre.DEBUG flag (currently dumps the parsed pattern structure)
-- fixed a couple of glitches in groupdict (the #126587 memory leak
   had already been fixed by AMK)
2001-01-14 15:06:11 +00:00
Fredrik Lundh 13ac9926ac Fixed too ambitious "nothing to repeat" check. Closes bug #114033. 2000-10-07 17:38:23 +00:00
Fredrik Lundh 7898c3e685 -- reset marks if repeat_one tail doesn't match
(this should fix Sjoerd's xmllib problem)
-- added skip field to INFO header
-- changed compiler to generate charset INFO header
-- changed trace messages to support post-mortem analysis
2000-08-07 20:59:04 +00:00
Fredrik Lundh e186983842 final 0.9.8 updates:
-- added REPEAT_ONE operator
-- added ANY_ALL operator (used to represent "(?s).")
2000-08-01 22:47:49 +00:00
Fredrik Lundh 2f2c67d7e5 -- fixed width calculations for alternations
-- fixed literal check in branch operator
   (this broke test_tokenize, as reported by Mark Favas)
-- added REPEAT_ONE operator (still not enabled, though)
-- added some debugging stuff (maxlevel)
2000-08-01 21:05:41 +00:00
Fredrik Lundh 29c4ba9ada SRE 0.9.8: passes the entire test suite
-- reverted REPEAT operator to use "repeat context" strategy
   (from 0.8.X), but done right this time.
-- got rid of backtracking stack; use nested SRE_MATCH calls
   instead (should probably put it back again in 0.9.9 ;-)
-- properly reset state in scanner mode
-- don't use aggressive inlining by default
2000-08-01 18:20:07 +00:00
Fredrik Lundh 8a3ebf8ca8 -- SRE 0.9.6 sync. this includes:
+ added "regs" attribute
 + fixed "pos" and "endpos" attributes
 + reset "lastindex" and "lastgroup" in scanner methods
 + removed (?P#id) syntax; the "lastindex" and "lastgroup"
   attributes are now always set
 + removed string module dependencies in sre_parse
 + better debugging support in sre_parse
 + various tweaks to build under 1.5.2
2000-07-23 21:46:17 +00:00
Fredrik Lundh 2855290b84 maintenance release:
- reorganized some code to get rid of -Wall and -W4
  warnings

- fixed default argument handling for sub/subn/split
  methods (reported by Peter Schneider-Kamp).
2000-07-05 21:14:16 +00:00
Fredrik Lundh 72b82ba16d - fixed grouping error bug
- changed "group" operator to "groupref"
2000-07-03 21:31:48 +00:00
Fredrik Lundh 6f01398236 - added lookbehind support (?<=pattern), (?<!pattern).
the pattern must have a fixed width.

- got rid of array-module dependencies; the match pro-
  gram is now stored inside the pattern object, rather
  than in an extra string buffer.

- cleaned up a various of potential leaks, api abuses,
  and other minors in the engine module.

- use mal's new isalnum macro, rather than my own work-
  around.

- untabified test_sre.py.  seems like I removed a couple
  of trailing spaces in the process...
2000-07-03 18:44:21 +00:00
Fredrik Lundh c2301730b8 - experimental: added two new attributes to the match object:
"lastgroup" is the name of the last matched capturing group,
  "lastindex" is the index of the same group.  if no group was
  matched, both attributes are set to None.

  the (?P#) feature will be removed in the next relase.
2000-07-02 22:25:39 +00:00
Fredrik Lundh 7cafe4d7e4 - actually enabled charset anchors in the engine (still not
used by the code generator)

- changed max repeat value in engine (to match earlier array fix)

- added experimental "which part matched?" mechanism to sre; see
  http://hem.passagen.se/eff/2000_07_01_bot-archive.htm#416954
  or python-dev for details.
2000-07-02 17:33:27 +00:00
Fredrik Lundh 3562f11764 -- use charset bitmaps where appropriate. this gives a 5-10%
speedup for some tests, including the python tokenizer.

-- added support for an optional charset anchor to the engine
   (currently unused by the code generator).

-- removed workaround for array module bug.
2000-07-02 12:00:07 +00:00
Fredrik Lundh 22d2546520 today's SRE update:
-- changed 1.6 to 2.0 in the file headers

-- fixed ISALNUM macro for the unicode locale.  this
   solution isn't perfect, but the best I can do with
   Python's current unicode database.
2000-07-01 17:50:59 +00:00
Fredrik Lundh 55a4f4a528 - fixed code generation error in multiline mode
- fixed parser flag propagation (of all stupid bugs...)
2000-06-30 22:37:31 +00:00
Fredrik Lundh 4ccea94152 - reverted to "\x is binary byte"
- removed evil tabs from sre_parse and sre_compile
2000-06-30 18:39:20 +00:00
Fredrik Lundh 0640e1161f the mad patcher strikes again:
-- added pickling support (only works if sre is imported)

-- fixed wordsize problems in engine
   (instead of casting literals down to the character size,
   cast characters up to the literal size (same as the code
   word size).  this prevents false hits when you're matching
   a unicode pattern against an 8-bit string. (unfortunately,
   this broke another test, but I think the test should be
   changed in this case; more on that on python-dev)

-- added sre.purge function
   (unofficial, clears the cache)
2000-06-30 13:55:15 +00:00
Fredrik Lundh 43b3b49b5a - fixed lookahead assertions (#10, #11, #12)
- untabified sre_constants.py
2000-06-30 10:41:31 +00:00
Fredrik Lundh 90a0791322 - pedantic: make sure "python -t" doesn't complain... 2000-06-30 07:50:59 +00:00
Fredrik Lundh 01016fe972 - fixed split behaviour on empty matches
- fixed compiler problems when using locale/unicode flags

- fixed group/octal code parsing in sub/subn templates
2000-06-30 00:27:46 +00:00
Fredrik Lundh 29c08beab0 still trying to figure out how to fix the remaining
group reset problem.  in the meantime, I added some
optimizations:

- added "inline" directive to LOCAL

  (this assumes that AC_C_INLINE does what it's
  supposed to do).  to compile SRE on a non-unix
  platform that doesn't support inline, you have
  to add a "#define inline" somewhere...

- added code to generate a SRE_OP_INFO primitive

- added code to do fast prefix search

  (enabled by the USE_FAST_SEARCH define; default
  is on, in this release)
2000-06-29 23:33:12 +00:00
Fredrik Lundh 8094611eb8 - fixed another split problem
(those semantics are weird...)

- got rid of $Id$'s (for the moment, at least).  in other
  words, there should be no more "empty" checkins.

- internal: some minor cleanups.
2000-06-29 18:03:25 +00:00
Fredrik Lundh be2211e940 - fixed split
(test_sre still complains about split, but that's caused by
  the group reset bug, not split itself)

- added more mark slots
  (should be dynamically allocated, but 100 is better than 32.
  and checking for the upper limit is better than overwriting
  the memory ;-)

- internal: renamed the cursor helper class

- internal: removed some bloat from sre_compile
2000-06-29 16:57:40 +00:00
Fredrik Lundh 6c68dc7b1a - removed "alpha only" licensing restriction
- removed some hacks that worked around 1.6 alpha bugs
- removed bogus test code from sre_parse
2000-06-29 10:34:56 +00:00