[Python-checkins] CVS: python/dist/src/Modules _sre.c,2.53,2.54 sre_constants.h,2.11,2.12

Fredrik Lundh effbot@users.sourceforge.net
Thu, 22 Mar 2001 07:50:12 -0800


Update of /cvsroot/python/python/dist/src/Modules
In directory usw-pr-cvs1:/tmp/cvs-serv29581/Modules

Modified Files:
	_sre.c sre_constants.h 
Log Message:


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

Index: _sre.c
===================================================================
RCS file: /cvsroot/python/python/dist/src/Modules/_sre.c,v
retrieving revision 2.53
retrieving revision 2.54
diff -C2 -r2.53 -r2.54
*** _sre.c	2001/02/28 16:44:18	2.53
--- _sre.c	2001/03/22 15:50:09	2.54
***************
*** 25,30 ****
   * 2000-12-21 fl  fixed memory leak in groupdict
   * 2001-01-02 fl  properly reset pointer after failed assertion in MIN_UNTIL
!  * 2001-01-15 fl  avoid recursion for MIN_UTIL; fixed uppercase literal bug
   * 2001-01-16 fl  fixed memory leak in pattern destructor
   *
   * Copyright (c) 1997-2001 by Secret Labs AB.  All rights reserved.
--- 25,31 ----
   * 2000-12-21 fl  fixed memory leak in groupdict
   * 2001-01-02 fl  properly reset pointer after failed assertion in MIN_UNTIL
!  * 2001-01-15 fl  avoid recursion for MIN_UNTIL; fixed uppercase literal bug
   * 2001-01-16 fl  fixed memory leak in pattern destructor
+  * 2001-03-20 fl  lots of fixes for 2.1b2
   *
   * Copyright (c) 1997-2001 by Secret Labs AB.  All rights reserved.
***************
*** 41,45 ****
  #ifndef SRE_RECURSIVE
  
! char copyright[] = " SRE 2.1 Copyright (c) 1997-2001 by Secret Labs AB ";
  
  #include "Python.h"
--- 42,46 ----
  #ifndef SRE_RECURSIVE
  
! char copyright[] = " SRE 2.1b2 Copyright (c) 1997-2001 by Secret Labs AB ";
  
  #include "Python.h"
***************
*** 142,150 ****
  120, 121, 122, 123, 124, 125, 126, 127 };
  
- static unsigned int sre_lower(unsigned int ch)
- {
-     return ((ch) < 128 ? sre_char_lower[ch] : ch);
- }
- 
  #define SRE_IS_DIGIT(ch)\
      ((ch) < 128 ? (sre_char_info[(ch)] & SRE_DIGIT_MASK) : 0)
--- 143,146 ----
***************
*** 157,167 ****
  #define SRE_IS_WORD(ch)\
      ((ch) < 128 ? (sre_char_info[(ch)] & SRE_WORD_MASK) : 0)
- 
- /* locale-specific character predicates */
  
! static unsigned int sre_lower_locale(unsigned int ch)
  {
!     return ((ch) < 256 ? tolower((ch)) : ch);
  }
  #define SRE_LOC_IS_DIGIT(ch) ((ch) < 256 ? isdigit((ch)) : 0)
  #define SRE_LOC_IS_SPACE(ch) ((ch) < 256 ? isspace((ch)) : 0)
--- 153,164 ----
  #define SRE_IS_WORD(ch)\
      ((ch) < 128 ? (sre_char_info[(ch)] & SRE_WORD_MASK) : 0)
  
! static unsigned int sre_lower(unsigned int ch)
  {
!     return ((ch) < 128 ? sre_char_lower[ch] : ch);
  }
+ 
+ /* locale-specific character predicates */
+ 
  #define SRE_LOC_IS_DIGIT(ch) ((ch) < 256 ? isdigit((ch)) : 0)
  #define SRE_LOC_IS_SPACE(ch) ((ch) < 256 ? isspace((ch)) : 0)
***************
*** 170,180 ****
  #define SRE_LOC_IS_WORD(ch) (SRE_LOC_IS_ALNUM((ch)) || (ch) == '_')
  
  /* unicode-specific character predicates */
  
  #if defined(HAVE_UNICODE)
! static unsigned int sre_lower_unicode(unsigned int ch)
! {
!     return (unsigned int) Py_UNICODE_TOLOWER((Py_UNICODE)(ch));
! }
  #define SRE_UNI_IS_DIGIT(ch) Py_UNICODE_ISDIGIT((Py_UNICODE)(ch))
  #define SRE_UNI_IS_SPACE(ch) Py_UNICODE_ISSPACE((Py_UNICODE)(ch))
--- 167,179 ----
  #define SRE_LOC_IS_WORD(ch) (SRE_LOC_IS_ALNUM((ch)) || (ch) == '_')
  
+ static unsigned int sre_lower_locale(unsigned int ch)
+ {
+     return ((ch) < 256 ? tolower((ch)) : ch);
+ }
+ 
  /* unicode-specific character predicates */
  
  #if defined(HAVE_UNICODE)
! 
  #define SRE_UNI_IS_DIGIT(ch) Py_UNICODE_ISDIGIT((Py_UNICODE)(ch))
  #define SRE_UNI_IS_SPACE(ch) Py_UNICODE_ISSPACE((Py_UNICODE)(ch))
***************
*** 182,185 ****
--- 181,190 ----
  #define SRE_UNI_IS_ALNUM(ch) Py_UNICODE_ISALNUM((Py_UNICODE)(ch))
  #define SRE_UNI_IS_WORD(ch) (SRE_UNI_IS_ALNUM((ch)) || (ch) == '_')
+ 
+ static unsigned int sre_lower_unicode(unsigned int ch)
+ {
+     return (unsigned int) Py_UNICODE_TOLOWER((Py_UNICODE)(ch));
+ }
+ 
  #endif
  
***************
*** 419,422 ****
--- 424,463 ----
              SRE_IS_WORD((int) ptr[0]) : 0;
          return this == that;
+ 
+     case SRE_AT_LOC_BOUNDARY:
+         if (state->beginning == state->end)
+             return 0;
+         that = ((void*) ptr > state->beginning) ?
+             SRE_LOC_IS_WORD((int) ptr[-1]) : 0;
+         this = ((void*) ptr < state->end) ?
+             SRE_LOC_IS_WORD((int) ptr[0]) : 0;
+         return this != that;
+ 
+     case SRE_AT_LOC_NON_BOUNDARY:
+         if (state->beginning == state->end)
+             return 0;
+         that = ((void*) ptr > state->beginning) ?
+             SRE_LOC_IS_WORD((int) ptr[-1]) : 0;
+         this = ((void*) ptr < state->end) ?
+             SRE_LOC_IS_WORD((int) ptr[0]) : 0;
+         return this == that;
+ 
+     case SRE_AT_UNI_BOUNDARY:
+         if (state->beginning == state->end)
+             return 0;
+         that = ((void*) ptr > state->beginning) ?
+             SRE_UNI_IS_WORD((int) ptr[-1]) : 0;
+         this = ((void*) ptr < state->end) ?
+             SRE_UNI_IS_WORD((int) ptr[0]) : 0;
+         return this != that;
+ 
+     case SRE_AT_UNI_NON_BOUNDARY:
+         if (state->beginning == state->end)
+             return 0;
+         that = ((void*) ptr > state->beginning) ?
+             SRE_UNI_IS_WORD((int) ptr[-1]) : 0;
+         this = ((void*) ptr < state->end) ?
+             SRE_UNI_IS_WORD((int) ptr[0]) : 0;
+         return this == that;
      }
  
***************
*** 1038,1042 ****
              /* see if the tail matches */
              state->repeat = rp->prev;
!             if (rp->pattern[2] == 65535) {
                  /* unbounded repeat */
                  for (;;) {
--- 1079,1084 ----
              /* see if the tail matches */
              state->repeat = rp->prev;
!             /* FIXME: the following fix doesn't always work (#133283) */
!             if (0 && rp->pattern[2] == 65535) {
                  /* unbounded repeat */
                  for (;;) {

Index: sre_constants.h
===================================================================
RCS file: /cvsroot/python/python/dist/src/Modules/sre_constants.h,v
retrieving revision 2.11
retrieving revision 2.12
diff -C2 -r2.11 -r2.12
*** sre_constants.h	2001/01/15 12:46:09	2.11
--- sre_constants.h	2001/03/22 15:50:09	2.12
***************
*** 12,16 ****
   */
  
! #define SRE_MAGIC 20010115
  #define SRE_OP_FAILURE 0
  #define SRE_OP_SUCCESS 1
--- 12,16 ----
   */
  
! #define SRE_MAGIC 20010320
  #define SRE_OP_FAILURE 0
  #define SRE_OP_SUCCESS 1
***************
*** 50,53 ****
--- 50,57 ----
  #define SRE_AT_END_LINE 6
  #define SRE_AT_END_STRING 7
+ #define SRE_AT_LOC_BOUNDARY 8
+ #define SRE_AT_LOC_NON_BOUNDARY 9
+ #define SRE_AT_UNI_BOUNDARY 10
+ #define SRE_AT_UNI_NON_BOUNDARY 11
  #define SRE_CATEGORY_DIGIT 0
  #define SRE_CATEGORY_NOT_DIGIT 1