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revision 460 by ph10, Tue Sep 1 16:10:16 2009 UTC revision 461 by ph10, Mon Oct 5 10:59:35 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. Some features that appeared in Python and PCRE before they
28  appeared in Perl are also available using the Python syntax. There is also some  appeared in Perl are also available using the Python syntax, there is some
29  support for certain .NET and Oniguruma syntax items, and there is an option for  support for one or two .NET and Oniguruma syntax items, and there is an option
30  requesting some minor changes that give better JavaScript compatibility.  for requesting some minor changes that give better JavaScript compatibility.
31  </P>  </P>
32  <P>  <P>
33  The current implementation of PCRE (release 8.xx) corresponds approximately  The current implementation of PCRE corresponds approximately with Perl 5.10,
34  with Perl 5.10, including support for UTF-8 encoded strings and Unicode general  including support for UTF-8 encoded strings and Unicode general category
35  category properties. However, UTF-8 and Unicode support has to be explicitly  properties. However, UTF-8 and Unicode support has to be explicitly enabled; it
36  enabled; it is not the default. The Unicode tables correspond to Unicode  is not the default. The Unicode tables correspond to Unicode release 5.1.
 release 5.1.  
37  </P>  </P>
38  <P>  <P>
39  In addition to the Perl-compatible matching function, PCRE contains an  In addition to the Perl-compatible matching function, PCRE contains an
40  alternative matching function that matches the same compiled patterns in a  alternative function that matches the same compiled patterns in a different
41  different way. In certain circumstances, the alternative function has some  way. In certain circumstances, the alternative function has some advantages.
42  advantages. For a discussion of the two matching algorithms, see the  For a discussion of the two matching algorithms, see the
43  <a href="pcrematching.html"><b>pcrematching</b></a>  <a href="pcrematching.html"><b>pcrematching</b></a>
44  page.  page.
45  </P>  </P>
# Line 72  function makes it possible for a client Line 71  function makes it possible for a client
71  available. The features themselves are described in the  available. The features themselves are described in the
72  <a href="pcrebuild.html"><b>pcrebuild</b></a>  <a href="pcrebuild.html"><b>pcrebuild</b></a>
73  page. Documentation about building PCRE for various operating systems can be  page. Documentation about building PCRE for various operating systems can be
74  found in the <b>README</b> file in the source distribution.  found in the <b>README</b> and <b>NON-UNIX-USE</b> files in the source
75    distribution.
76  </P>  </P>
77  <P>  <P>
78  The library contains a number of undocumented internal functions and data  The library contains a number of undocumented internal functions and data
# Line 103  of searching. The sections are as follow Line 103  of searching. The sections are as follow
103    pcrematching      discussion of the two matching algorithms    pcrematching      discussion of the two matching algorithms
104    pcrepartial       details of the partial matching facility    pcrepartial       details of the partial matching facility
105    pcrepattern       syntax and semantics of supported regular expressions    pcrepattern       syntax and semantics of supported regular expressions
   pcresyntax        quick syntax reference  
106    pcreperform       discussion of performance issues    pcreperform       discussion of performance issues
107    pcreposix         the POSIX-compatible C API    pcreposix         the POSIX-compatible C API
108    pcreprecompile    details of saving and re-using precompiled patterns    pcreprecompile    details of saving and re-using precompiled patterns
109    pcresample        discussion of the pcredemo program    pcresample        discussion of the pcredemo program
110    pcrestack         discussion of stack usage    pcrestack         discussion of stack usage
111      pcresyntax        quick syntax reference
112    pcretest          description of the <b>pcretest</b> testing command    pcretest          description of the <b>pcretest</b> testing command
113  </pre>  </pre>
114  In addition, in the "man" and HTML formats, there is a short page for each  In addition, in the "man" and HTML formats, there is a short page for each
# Line 164  the code, and, in addition, you must cal Line 164  the code, and, in addition, you must cal
164  with the PCRE_UTF8 option flag, or the pattern must start with the sequence  with the PCRE_UTF8 option flag, or the pattern must start with the sequence
165  (*UTF8). When either of these is the case, both the pattern and any subject  (*UTF8). When either of these is the case, both the pattern and any subject
166  strings that are matched against it are treated as UTF-8 strings instead of  strings that are matched against it are treated as UTF-8 strings instead of
167  just strings of bytes.  strings of 1-byte characters.
168  </P>  </P>
169  <P>  <P>
170  If you compile PCRE with UTF-8 support, but do not use it at run time, the  If you compile PCRE with UTF-8 support, but do not use it at run time, the
# Line 298  two digits 10, at the domain cam.ac.uk. Line 298  two digits 10, at the domain cam.ac.uk.
298  </P>  </P>
299  <br><a name="SEC6" href="#TOC1">REVISION</a><br>  <br><a name="SEC6" href="#TOC1">REVISION</a><br>
300  <P>  <P>
301  Last updated: 01 September 2009  Last updated: 28 September 2009
302  <br>  <br>
303  Copyright &copy; 1997-2009 University of Cambridge.  Copyright &copy; 1997-2009 University of Cambridge.
304  <br>  <br>
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