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revision 654 by ph10, Tue Aug 2 11:00:40 2011 UTC revision 788 by ph10, Tue Dec 6 15:38:01 2011 UTC
# Line 60  command has an option that sets automati Line 60  command has an option that sets automati
60  indicates how the pattern is matched. This is useful information when you are  indicates how the pattern is matched. This is useful information when you are
61  trying to optimize the performance of a particular pattern.  trying to optimize the performance of a particular pattern.
62  </P>  </P>
63    <P>
64    The use of callouts in a pattern makes it ineligible for optimization by the
65    just-in-time compiler. Studying such a pattern with the PCRE_STUDY_JIT_COMPILE
66    option always fails.
67    </P>
68  <br><a name="SEC2" href="#TOC1">MISSING CALLOUTS</a><br>  <br><a name="SEC2" href="#TOC1">MISSING CALLOUTS</a><br>
69  <P>  <P>
70  You should be aware that, because of optimizations in the way PCRE matches  You should be aware that, because of optimizations in the way PCRE matches
# Line 184  same callout number. However, they are s Line 189  same callout number. However, they are s
189  <P>  <P>
190  The <i>mark</i> field is present from version 2 of the <i>pcre_callout</i>  The <i>mark</i> field is present from version 2 of the <i>pcre_callout</i>
191  structure. In callouts from <b>pcre_exec()</b> it contains a pointer to the  structure. In callouts from <b>pcre_exec()</b> it contains a pointer to the
192  zero-terminated name of the most recently passed (*MARK) item in the match, or  zero-terminated name of the most recently passed (*MARK), (*PRUNE), or (*THEN)
193  NULL if there are no (*MARK)s in the current matching path. In callouts from  item in the match, or NULL if no such items have been passed. Instances of
194  <b>pcre_dfa_exec()</b> this field always contains NULL.  (*PRUNE) or (*THEN) without a name do not obliterate a previous (*MARK). In
195    callouts from <b>pcre_dfa_exec()</b> this field always contains NULL.
196  </P>  </P>
197  <br><a name="SEC4" href="#TOC1">RETURN VALUES</a><br>  <br><a name="SEC4" href="#TOC1">RETURN VALUES</a><br>
198  <P>  <P>
# Line 214  Cambridge CB2 3QH, England. Line 220  Cambridge CB2 3QH, England.
220  </P>  </P>
221  <br><a name="SEC6" href="#TOC1">REVISION</a><br>  <br><a name="SEC6" href="#TOC1">REVISION</a><br>
222  <P>  <P>
223  Last updated: 31 July 2011  Last updated: 30 November 2011
224  <br>  <br>
225  Copyright &copy; 1997-2011 University of Cambridge.  Copyright &copy; 1997-2011 University of Cambridge.
226  <br>  <br>
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