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revision 211 by ph10, Thu Aug 9 09:52:43 2007 UTC revision 406 by ph10, Mon Mar 23 12:05:43 2009 UTC
# Line 24  man page, in case the conversion went wr Line 24  man page, in case the conversion went wr
24  <P>  <P>
25  The PCRE library is a set of functions that implement regular expression  The PCRE library is a set of functions that implement regular expression
26  pattern matching using the same syntax and semantics as Perl, with just a few  pattern matching using the same syntax and semantics as Perl, with just a few
27  differences. (Certain features that appeared in Python and PCRE before they  differences. Certain features that appeared in Python and PCRE before they
28  appeared in Perl are also available using the Python syntax.)  appeared in Perl are also available using the Python syntax. There is also some
29    support for certain .NET and Oniguruma syntax items, and there is an option for
30    requesting some minor changes that give better JavaScript compatibility.
31  </P>  </P>
32  <P>  <P>
33  The current implementation of PCRE (release 7.x) corresponds approximately with  The current implementation of PCRE (release 7.x) corresponds approximately with
# Line 256  digits, spaces, or word characters remai Line 258  digits, spaces, or word characters remai
258  values less than 256. This remains true even when PCRE includes Unicode  values less than 256. This remains true even when PCRE includes Unicode
259  property support, because to do otherwise would slow down PCRE in many common  property support, because to do otherwise would slow down PCRE in many common
260  cases. If you really want to test for a wider sense of, say, "digit", you  cases. If you really want to test for a wider sense of, say, "digit", you
261  must use Unicode property tests such as \p{Nd}.  must use Unicode property tests such as \p{Nd}. Note that this also applies to
262    \b, because it is defined in terms of \w and \W.
263  </P>  </P>
264  <P>  <P>
265  7. Similarly, characters that match the POSIX named character classes are all  7. Similarly, characters that match the POSIX named character classes are all
# Line 293  two digits 10, at the domain cam.ac.uk. Line 296  two digits 10, at the domain cam.ac.uk.
296  </P>  </P>
297  <br><a name="SEC6" href="#TOC1">REVISION</a><br>  <br><a name="SEC6" href="#TOC1">REVISION</a><br>
298  <P>  <P>
299  Last updated: 09 August 2007  Last updated: 18 March 2009
300  <br>  <br>
301  Copyright &copy; 1997-2007 University of Cambridge.  Copyright &copy; 1997-2009 University of Cambridge.
302  <br>  <br>
303  <p>  <p>
304  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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