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revision 75 by nigel, Sat Feb 24 21:40:37 2007 UTC revision 91 by nigel, Sat Feb 24 21:41:34 2007 UTC
# Line 21  regular expressions. The differences des Line 21  regular expressions. The differences des
21  5.8.  5.8.
22  </P>  </P>
23  <P>  <P>
24  1. PCRE does not have full UTF-8 support. Details of what it does have are  1. PCRE has only a subset of Perl's UTF-8 and Unicode support. Details of what
25  given in the  it does have are given in the
26  <a href="pcre.html#utf8support">section on UTF-8 support</a>  <a href="pcre.html#utf8support">section on UTF-8 support</a>
27  in the main  in the main
28  <a href="pcre.html"><b>pcre</b></a>  <a href="pcre.html"><b>pcre</b></a>
# Line 57  encountered by PCRE, an error is generat Line 57  encountered by PCRE, an error is generat
57  6. The Perl escape sequences \p, \P, and \X are supported only if PCRE is  6. The Perl escape sequences \p, \P, and \X are supported only if PCRE is
58  built with Unicode character property support. The properties that can be  built with Unicode character property support. The properties that can be
59  tested with \p and \P are limited to the general category properties such as  tested with \p and \P are limited to the general category properties such as
60  Lu and Nd.  Lu and Nd, script names such as Greek or Han, and the derived properties Any
61    and L&.
62  </P>  </P>
63  <P>  <P>
64  7. PCRE does support the \Q...\E escape for quoting substrings. Characters in  7. PCRE does support the \Q...\E escape for quoting substrings. Characters in
# Line 101  meta-character matches only at the very Line 102  meta-character matches only at the very
102  <br>  <br>
103  <br>  <br>
104  (c) If PCRE_EXTRA is set, a backslash followed by a letter with no special  (c) If PCRE_EXTRA is set, a backslash followed by a letter with no special
105  meaning is faulted.  meaning is faulted. Otherwise, like Perl, the backslash is ignored. (Perl can
106    be made to issue a warning.)
107  <br>  <br>
108  <br>  <br>
109  (d) If PCRE_UNGREEDY is set, the greediness of the repetition quantifiers is  (d) If PCRE_UNGREEDY is set, the greediness of the repetition quantifiers is
# Line 140  package. Line 142  package.
142  <br>  <br>
143  (m) Patterns compiled by PCRE can be saved and re-used at a later time, even on  (m) Patterns compiled by PCRE can be saved and re-used at a later time, even on
144  different hosts that have the other endianness.  different hosts that have the other endianness.
145    <br>
146    <br>
147    (n) The alternative matching function (<b>pcre_dfa_exec()</b>) matches in a
148    different way and is not Perl-compatible.
149  </P>  </P>
150  <P>  <P>
151  Last updated: 09 September 2004  Last updated: 06 June 2006
152  <br>  <br>
153  Copyright &copy; 1997-2004 University of Cambridge.  Copyright &copy; 1997-2006 University of Cambridge.
154  <p>  <p>
155  Return to the <a href="index.html">PCRE index page</a>.  Return to the <a href="index.html">PCRE index page</a>.
156  </p>  </p>

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