/[pcre]/code/trunk/doc/html/pcrematching.html
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revision 428 by ph10, Mon Apr 28 15:10:02 2008 UTC revision 429 by ph10, Tue Sep 1 16:10:16 2009 UTC
# Line 177  match using the standard algorithm, you Line 177  match using the standard algorithm, you
177  callouts.  callouts.
178  </P>  </P>
179  <P>  <P>
180  2. There is much better support for partial matching. The restrictions on the  2. Because the alternative algorithm scans the subject string just once, and
 content of the pattern that apply when using the standard algorithm for partial  
 matching do not apply to the alternative algorithm. For non-anchored patterns,  
 the starting position of a partial match is available.  
 </P>  
 <P>  
 3. Because the alternative algorithm scans the subject string just once, and  
181  never needs to backtrack, it is possible to pass very long subject strings to  never needs to backtrack, it is possible to pass very long subject strings to
182  the matching function in several pieces, checking for partial matching each  the matching function in several pieces, checking for partial matching each
183  time.  time.
# Line 215  Cambridge CB2 3QH, England. Line 209  Cambridge CB2 3QH, England.
209  </P>  </P>
210  <br><a name="SEC8" href="#TOC1">REVISION</a><br>  <br><a name="SEC8" href="#TOC1">REVISION</a><br>
211  <P>  <P>
212  Last updated: 19 April 2008  Last updated: 25 August 2009
213  <br>  <br>
214  Copyright &copy; 1997-2008 University of Cambridge.  Copyright &copy; 1997-2009 University of Cambridge.
215  <br>  <br>
216  <p>  <p>
217  Return to the <a href="index.html">PCRE index page</a>.  Return to the <a href="index.html">PCRE index page</a>.
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