/[pcre]/code/trunk/doc/pcrematching.3
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revision 434 by ph10, Wed Aug 26 15:38:32 2009 UTC revision 435 by ph10, Sat Sep 5 10:20:44 2009 UTC
# Line 92  the three strings "cat", "cater", and "c Line 92  the three strings "cat", "cater", and "c
92  character of the subject. The algorithm does not automatically move on to find  character of the subject. The algorithm does not automatically move on to find
93  matches that start at later positions.  matches that start at later positions.
94  .P  .P
95    Although the general principle of this matching algorithm is that it scans the
96    subject string only once, without backtracking, there is one exception: when a
97    lookbehind assertion is encountered, the preceding characters have to be
98    re-inspected.
99    .P
100  There are a number of features of PCRE regular expressions that are not  There are a number of features of PCRE regular expressions that are not
101  supported by the alternative matching algorithm. They are as follows:  supported by the alternative matching algorithm. They are as follows:
102  .P  .P
# Line 178  Cambridge CB2 3QH, England. Line 183  Cambridge CB2 3QH, England.
183  .rs  .rs
184  .sp  .sp
185  .nf  .nf
186  Last updated: 25 August 2009  Last updated: 05 September 2009
187  Copyright (c) 1997-2009 University of Cambridge.  Copyright (c) 1997-2009 University of Cambridge.
188  .fi  .fi
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