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revision 836 by ph10, Wed Dec 28 17:16:11 2011 UTC revision 869 by ph10, Sat Jan 14 11:16:23 2012 UTC
# Line 20  There are some size limitations in PCRE Line 20  There are some size limitations in PCRE
20  practice be relevant.  practice be relevant.
21  </P>  </P>
22  <P>  <P>
23  The maximum length of a compiled pattern is 65539 (sic) bytes if PCRE is  The maximum length of a compiled pattern is approximately 64K data units (bytes
24  compiled with the default internal linkage size of 2. If you want to process  for the 8-bit library, 16-bit units for the 16-bit library) if PCRE is compiled
25    with the default internal linkage size of 2 bytes. If you want to process
26  regular expressions that are truly enormous, you can compile PCRE with an  regular expressions that are truly enormous, you can compile PCRE with an
27  internal linkage size of 3 or 4 (see the <b>README</b> file in the source  internal linkage size of 3 or 4 (when building the 16-bit library, 3 is rounded
28  distribution and the  up to 4). See the <b>README</b> file in the source distribution and the
29  <a href="pcrebuild.html"><b>pcrebuild</b></a>  <a href="pcrebuild.html"><b>pcrebuild</b></a>
30  documentation for details). In these cases the limit is substantially larger.  documentation for details. In these cases the limit is substantially larger.
31  However, the speed of execution is slower.  However, the speed of execution is slower.
32  </P>  </P>
33  <P>  <P>
# Line 71  Cambridge CB2 3QH, England. Line 72  Cambridge CB2 3QH, England.
72  REVISION  REVISION
73  </b><br>  </b><br>
74  <P>  <P>
75  Last updated: 30 November 2011  Last updated: 08 January 2012
76  <br>  <br>
77  Copyright &copy; 1997-2011 University of Cambridge.  Copyright &copy; 1997-2012 University of Cambridge.
78  <br>  <br>
79  <p>  <p>
80  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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