--- embedaddon/pcre/doc/html/pcrelimits.html	2012/02/21 23:05:52	1.1
+++ embedaddon/pcre/doc/html/pcrelimits.html	2014/06/15 19:46:05	1.1.1.5
@@ -20,13 +20,16 @@ There are some size limitations in PCRE but it is hope
 practice be relevant.
 </P>
 <P>
-The maximum length of a compiled pattern is 65539 (sic) bytes if PCRE is
-compiled with the default internal linkage size of 2. If you want to process
-regular expressions that are truly enormous, you can compile PCRE with an
-internal linkage size of 3 or 4 (see the <b>README</b> file in the source
-distribution and the
+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, and 32-bit units for
+the 32-bit library) if PCRE is compiled with the default internal linkage size,
+which is 2 bytes for the 8-bit and 16-bit libraries, and 4 bytes for the 32-bit
+library. If you want to process regular expressions that are truly enormous,
+you can compile PCRE with an internal linkage size of 3 or 4 (when building the
+16-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>
-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.
 </P>
 <P>
@@ -34,7 +37,10 @@ All values in repeating quantifiers must be less than 
 </P>
 <P>
 There is no limit to the number of parenthesized subpatterns, but there can be
-no more than 65535 capturing subpatterns.
+no more than 65535 capturing subpatterns. There is, however, a limit to the
+depth of nesting of parenthesized subpatterns of all kinds. This is imposed in
+order to limit the amount of system stack used at compile time. The limit can
+be specified when PCRE is built; the default is 250.
 </P>
 <P>
 There is a limit to the number of forward references to subsequent subpatterns
@@ -47,6 +53,10 @@ The maximum length of name for a named subpattern is 3
 maximum number of named subpatterns is 10000.
 </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 libraries.
+</P>
+<P>
 The maximum length of a subject string is the largest positive number that an
 integer variable can hold. However, when using the traditional matching
 function, PCRE uses recursion to handle subpatterns and indefinite repetition.
@@ -71,9 +81,9 @@ Cambridge CB2 3QH, England.
 REVISION
 </b><br>
 <P>
-Last updated: 30 November 2011
+Last updated: 05 November 2013
 <br>
-Copyright &copy; 1997-2011 University of Cambridge.
+Copyright &copy; 1997-2013 University of Cambridge.
 <br>
 <p>
 Return to the <a href="index.html">PCRE index page</a>.