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version 1.1.1.2, 2012/02/21 23:50:25 version 1.1.1.4, 2013/07/22 08:25:57
Line 21  practice be relevant. Line 21  practice be relevant.
 </P>  </P>
 <P>  <P>
 The maximum length of a compiled pattern is approximately 64K data units (bytes  The maximum length of a compiled pattern is approximately 64K data units (bytes
for the 8-bit library, 16-bit units for the 16-bit library) if PCRE is compiledfor the 8-bit library, 32-bit units for the 32-bit library, and 32-bit units for
with the default internal linkage size of 2 bytes. If you want to processthe 32-bit library) if PCRE is compiled with the default internal linkage size
regular expressions that are truly enormous, you can compile PCRE with anof 2 bytes. If you want to process regular expressions that are truly enormous,
internal linkage size of 3 or 4 (when building the 16-bit library, 3 is roundedyou can compile PCRE with an internal linkage size of 3 or 4 (when building the
up to 4). See the <b>README</b> file in the source distribution and the16-bit or 32-bit library, 3 is rounded up to 4). See the <b>README</b> file in
 the source distribution and the
 <a href="pcrebuild.html"><b>pcrebuild</b></a>  <a href="pcrebuild.html"><b>pcrebuild</b></a>
 documentation for details. In these cases the limit is substantially larger.  documentation for details. In these cases the limit is substantially larger.
 However, the speed of execution is slower.  However, the speed of execution is slower.
Line 48  The maximum length of name for a named subpattern is 3 Line 49  The maximum length of name for a named subpattern is 3
 maximum number of named subpatterns is 10000.  maximum number of named subpatterns is 10000.
 </P>  </P>
 <P>  <P>
   The maximum length of a name in a (*MARK), (*PRUNE), (*SKIP), or (*THEN) verb
   is 255 for the 8-bit library and 65535 for the 16-bit and 32-bit library.
   </P>
   <P>
 The maximum length of a subject string is the largest positive number that an  The maximum length of a subject string is the largest positive number that an
 integer variable can hold. However, when using the traditional matching  integer variable can hold. However, when using the traditional matching
 function, PCRE uses recursion to handle subpatterns and indefinite repetition.  function, PCRE uses recursion to handle subpatterns and indefinite repetition.
Line 72  Cambridge CB2 3QH, England. Line 77  Cambridge CB2 3QH, England.
 REVISION  REVISION
 </b><br>  </b><br>
 <P>  <P>
Last updated: 08 January 2012Last updated: 04 May 2012
 <br>  <br>
 Copyright &copy; 1997-2012 University of Cambridge.  Copyright &copy; 1997-2012 University of Cambridge.
 <br>  <br>
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  Added in v.1.1.1.4

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