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revision 454 by ph10, Tue Sep 22 09:42:11 2009 UTC revision 455 by ph10, Sat Sep 26 19:12:32 2009 UTC
# Line 178  others are relatively new. Line 178  others are relatively new.
178      o A required byte from alternatives - not just the last char, but an      o A required byte from alternatives - not just the last char, but an
179        earlier one if common to all alternatives.        earlier one if common to all alternatives.
180    
     o Minimum length of subject needed (see also next . bullet).  
   
181      o Friedl contains other ideas.      o Friedl contains other ideas.
182    
 . There was a request for a way of finding the minimum subject length that can  
   match a given pattern. (If this were available, it could be usefully added  
   to study() - see above.) This is easy for simple cases, but I haven't figured  
   out how to handle recursion.  
   
183  . If Perl gets to a consistent state over the settings of capturing sub-  . If Perl gets to a consistent state over the settings of capturing sub-
184    patterns inside repeats, see if we can match it. One example of the    patterns inside repeats, see if we can match it. One example of the
185    difference is the matching of /(main(O)?)+/ against mainOmain, where PCRE    difference is the matching of /(main(O)?)+/ against mainOmain, where PCRE
# Line 308  others are relatively new. Line 301  others are relatively new.
301  Philip Hazel  Philip Hazel
302  Email local part: ph10  Email local part: ph10
303  Email domain: cam.ac.uk  Email domain: cam.ac.uk
304  Last updated: 20 September 2009  Last updated: 26 September 2009

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