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revision 452 by ph10, Tue Sep 1 16:10:16 2009 UTC revision 453 by ph10, Fri Sep 18 19:12:35 2009 UTC
# Line 98  above options is used. Line 98  above options is used.
98  </P>  </P>
99  <P>  <P>
100  Patterns that can match an empty string are accepted, but empty string  Patterns that can match an empty string are accepted, but empty string
101  matches are not recognized. An example is the pattern "(super)?(man)?", in  matches are never recognized. An example is the pattern "(super)?(man)?", in
102  which all components are optional. This pattern finds all occurrences of both  which all components are optional. This pattern finds all occurrences of both
103  "super" and "man"; the output differs from matching with "super|man" when only  "super" and "man"; the output differs from matching with "super|man" when only
104  the matching substrings are being shown.  the matching substrings are being shown.
# Line 538  Cambridge CB2 3QH, England. Line 538  Cambridge CB2 3QH, England.
538  </P>  </P>
539  <br><a name="SEC13" href="#TOC1">REVISION</a><br>  <br><a name="SEC13" href="#TOC1">REVISION</a><br>
540  <P>  <P>
541  Last updated: 12 August 2009  Last updated: 13 September 2009
542  <br>  <br>
543  Copyright &copy; 1997-2009 University of Cambridge.  Copyright &copy; 1997-2009 University of Cambridge.
544  <br>  <br>

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