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Upgrading the bundled PCRE to 8.34

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This commit is contained in:
Alexander Barkov
2014-02-03 08:54:12 +04:00
parent 2acc01b3cf
commit 74cca64155
169 changed files with 12162 additions and 6722 deletions
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26
pcre/doc/html/pcresyntax.html
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@ -65,10 +65,14 @@ documentation. This document contains a quick-reference summary of the syntax.
\n newline (hex 0A)
\r carriage return (hex 0D)
\t tab (hex 09)
\0dd character with octal code 0dd
\ddd character with octal code ddd, or backreference
\o{ddd..} character with octal code ddd..
\xhh character with hex code hh
\x{hhh..} character with hex code hhh..
</PRE>
</pre>
Note that \0dd is always an octal code, and that \8 and \9 are the literal
characters "8" and "9".
</P>
<br><a name="SEC4" href="#TOC1">CHARACTER TYPES</a><br>
<P>
@ -92,9 +96,11 @@ documentation. This document contains a quick-reference summary of the syntax.
\W a "non-word" character
\X a Unicode extended grapheme cluster
</pre>
In PCRE, by default, \d, \D, \s, \S, \w, and \W recognize only ASCII
characters, even in a UTF mode. However, this can be changed by setting the
PCRE_UCP option.
By default, \d, \s, and \w match only ASCII characters, even in UTF-8 mode
or in the 16- bit and 32-bit libraries. However, if locale-specific matching is
happening, \s and \w may also match characters with code points in the range
128-255. If the PCRE_UCP option is set, the behaviour of these escape sequences
is changed to use Unicode properties and they match many more characters.
</P>
<br><a name="SEC5" href="#TOC1">GENERAL CATEGORY PROPERTIES FOR \p and \P</a><br>
<P>
@ -150,11 +156,13 @@ PCRE_UCP option.
<pre>
Xan Alphanumeric: union of properties L and N
Xps POSIX space: property Z or tab, NL, VT, FF, CR
Xsp Perl space: property Z or tab, NL, FF, CR
Xsp Perl space: property Z or tab, NL, VT, FF, CR
Xuc Univerally-named character: one that can be
represented by a Universal Character Name
Xwd Perl word: property Xan or underscore
</PRE>
</pre>
Perl and POSIX space are now the same. Perl added VT to its space character set
at release 5.18 and PCRE changed at release 8.34.
</P>
<br><a name="SEC7" href="#TOC1">SCRIPT NAMES FOR \p AND \P</a><br>
<P>
@ -385,7 +393,9 @@ newline-setting options with similar syntax:
(*UTF32) set UTF-32 mode: 32-bit library (PCRE_UTF32)
(*UTF) set appropriate UTF mode for the library in use
(*UCP) set PCRE_UCP (use Unicode properties for \d etc)
</PRE>
</pre>
Note that LIMIT_MATCH and LIMIT_RECURSION can only reduce the value of the
limits set by the caller of pcre_exec(), not increase them.
</P>
<br><a name="SEC17" href="#TOC1">LOOKAHEAD AND LOOKBEHIND ASSERTIONS</a><br>
<P>
@ -516,7 +526,7 @@ Cambridge CB2 3QH, England.
</P>
<br><a name="SEC27" href="#TOC1">REVISION</a><br>
<P>
Last updated: 26 April 2013
Last updated: 12 November 2013
<br>
Copyright &copy; 1997-2013 University of Cambridge.
<br>