Regex: Update PCRE to v8.35.
I was über lazy at first, so took libs from SM. But actually it's quite easy to compile, so let's update to latest version \o/.
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Arkshine
@ -29,13 +29,13 @@ man page, in case the conversion went wrong.
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<li><a name="TOC14" href="#SEC14">ATOMIC GROUPS</a>
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<li><a name="TOC15" href="#SEC15">COMMENT</a>
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<li><a name="TOC16" href="#SEC16">OPTION SETTING</a>
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<li><a name="TOC17" href="#SEC17">LOOKAHEAD AND LOOKBEHIND ASSERTIONS</a>
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<li><a name="TOC18" href="#SEC18">BACKREFERENCES</a>
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<li><a name="TOC19" href="#SEC19">SUBROUTINE REFERENCES (POSSIBLY RECURSIVE)</a>
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<li><a name="TOC20" href="#SEC20">CONDITIONAL PATTERNS</a>
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<li><a name="TOC21" href="#SEC21">BACKTRACKING CONTROL</a>
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<li><a name="TOC22" href="#SEC22">NEWLINE CONVENTIONS</a>
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<li><a name="TOC23" href="#SEC23">WHAT \R MATCHES</a>
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<li><a name="TOC17" href="#SEC17">NEWLINE CONVENTION</a>
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<li><a name="TOC18" href="#SEC18">WHAT \R MATCHES</a>
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<li><a name="TOC19" href="#SEC19">LOOKAHEAD AND LOOKBEHIND ASSERTIONS</a>
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<li><a name="TOC20" href="#SEC20">BACKREFERENCES</a>
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<li><a name="TOC21" href="#SEC21">SUBROUTINE REFERENCES (POSSIBLY RECURSIVE)</a>
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<li><a name="TOC22" href="#SEC22">CONDITIONAL PATTERNS</a>
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<li><a name="TOC23" href="#SEC23">BACKTRACKING CONTROL</a>
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<li><a name="TOC24" href="#SEC24">CALLOUTS</a>
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<li><a name="TOC25" href="#SEC25">SEE ALSO</a>
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<li><a name="TOC26" href="#SEC26">AUTHOR</a>
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@ -65,10 +65,14 @@ documentation. This document contains a quick-reference summary of the syntax.
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\n newline (hex 0A)
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\r carriage return (hex 0D)
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\t tab (hex 09)
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\0dd character with octal code 0dd
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\ddd character with octal code ddd, or backreference
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\o{ddd..} character with octal code ddd..
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\xhh character with hex code hh
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\x{hhh..} character with hex code hhh..
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</PRE>
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</pre>
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Note that \0dd is always an octal code, and that \8 and \9 are the literal
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characters "8" and "9".
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</P>
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<br><a name="SEC4" href="#TOC1">CHARACTER TYPES</a><br>
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<P>
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@ -92,9 +96,11 @@ documentation. This document contains a quick-reference summary of the syntax.
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\W a "non-word" character
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\X a Unicode extended grapheme cluster
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</pre>
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In PCRE, by default, \d, \D, \s, \S, \w, and \W recognize only ASCII
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characters, even in a UTF mode. However, this can be changed by setting the
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PCRE_UCP option.
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By default, \d, \s, and \w match only ASCII characters, even in UTF-8 mode
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or in the 16- bit and 32-bit libraries. However, if locale-specific matching is
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happening, \s and \w may also match characters with code points in the range
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128-255. If the PCRE_UCP option is set, the behaviour of these escape sequences
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is changed to use Unicode properties and they match many more characters.
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</P>
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<br><a name="SEC5" href="#TOC1">GENERAL CATEGORY PROPERTIES FOR \p and \P</a><br>
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<P>
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@ -150,9 +156,13 @@ PCRE_UCP option.
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<pre>
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Xan Alphanumeric: union of properties L and N
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Xps POSIX space: property Z or tab, NL, VT, FF, CR
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Xsp Perl space: property Z or tab, NL, FF, CR
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Xsp Perl space: property Z or tab, NL, VT, FF, CR
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Xuc Univerally-named character: one that can be
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represented by a Universal Character Name
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Xwd Perl word: property Xan or underscore
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</PRE>
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</pre>
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Perl and POSIX space are now the same. Perl added VT to its space character set
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at release 5.18 and PCRE changed at release 8.34.
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</P>
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<br><a name="SEC7" href="#TOC1">SCRIPT NAMES FOR \p AND \P</a><br>
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<P>
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@ -329,7 +339,8 @@ but some of them use Unicode properties if PCRE_UCP is set. You can use
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<P>
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<pre>
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\K reset start of match
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</PRE>
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</pre>
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\K is honoured in positive assertions, but ignored in negative ones.
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</P>
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<br><a name="SEC12" href="#TOC1">ALTERNATION</a><br>
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<P>
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@ -372,18 +383,45 @@ but some of them use Unicode properties if PCRE_UCP is set. You can use
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(?x) extended (ignore white space)
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(?-...) unset option(s)
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</pre>
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The following are recognized only at the start of a pattern or after one of the
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newline-setting options with similar syntax:
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The following are recognized only at the very start of a pattern or after one
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of the newline or \R options with similar syntax. More than one of them may
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appear.
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<pre>
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(*LIMIT_MATCH=d) set the match limit to d (decimal number)
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(*LIMIT_RECURSION=d) set the recursion limit to d (decimal number)
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(*NO_AUTO_POSSESS) no auto-possessification (PCRE_NO_AUTO_POSSESS)
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(*NO_START_OPT) no start-match optimization (PCRE_NO_START_OPTIMIZE)
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(*UTF8) set UTF-8 mode: 8-bit library (PCRE_UTF8)
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(*UTF16) set UTF-16 mode: 16-bit library (PCRE_UTF16)
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(*UTF32) set UTF-32 mode: 32-bit library (PCRE_UTF32)
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(*UTF) set appropriate UTF mode for the library in use
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(*UCP) set PCRE_UCP (use Unicode properties for \d etc)
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</pre>
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Note that LIMIT_MATCH and LIMIT_RECURSION can only reduce the value of the
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limits set by the caller of pcre_exec(), not increase them.
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</P>
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<br><a name="SEC17" href="#TOC1">NEWLINE CONVENTION</a><br>
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<P>
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These are recognized only at the very start of the pattern or after option
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settings with a similar syntax.
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<pre>
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(*CR) carriage return only
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(*LF) linefeed only
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(*CRLF) carriage return followed by linefeed
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(*ANYCRLF) all three of the above
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(*ANY) any Unicode newline sequence
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</PRE>
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</P>
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<br><a name="SEC17" href="#TOC1">LOOKAHEAD AND LOOKBEHIND ASSERTIONS</a><br>
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<br><a name="SEC18" href="#TOC1">WHAT \R MATCHES</a><br>
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<P>
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These are recognized only at the very start of the pattern or after option
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setting with a similar syntax.
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<pre>
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(*BSR_ANYCRLF) CR, LF, or CRLF
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(*BSR_UNICODE) any Unicode newline sequence
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</PRE>
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</P>
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<br><a name="SEC19" href="#TOC1">LOOKAHEAD AND LOOKBEHIND ASSERTIONS</a><br>
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<P>
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<pre>
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(?=...) positive look ahead
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@ -393,7 +431,7 @@ newline-setting options with similar syntax:
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</pre>
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Each top-level branch of a look behind must be of a fixed length.
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</P>
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<br><a name="SEC18" href="#TOC1">BACKREFERENCES</a><br>
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<br><a name="SEC20" href="#TOC1">BACKREFERENCES</a><br>
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<P>
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<pre>
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\n reference by number (can be ambiguous)
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@ -407,7 +445,7 @@ Each top-level branch of a look behind must be of a fixed length.
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(?P=name) reference by name (Python)
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</PRE>
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</P>
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<br><a name="SEC19" href="#TOC1">SUBROUTINE REFERENCES (POSSIBLY RECURSIVE)</a><br>
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<br><a name="SEC21" href="#TOC1">SUBROUTINE REFERENCES (POSSIBLY RECURSIVE)</a><br>
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<P>
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<pre>
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(?R) recurse whole pattern
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@ -426,7 +464,7 @@ Each top-level branch of a look behind must be of a fixed length.
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\g'-n' call subpattern by relative number (PCRE extension)
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</PRE>
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</P>
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<br><a name="SEC20" href="#TOC1">CONDITIONAL PATTERNS</a><br>
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<br><a name="SEC22" href="#TOC1">CONDITIONAL PATTERNS</a><br>
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<P>
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<pre>
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(?(condition)yes-pattern)
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@ -445,7 +483,7 @@ Each top-level branch of a look behind must be of a fixed length.
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(?(assert)... assertion condition
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</PRE>
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</P>
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<br><a name="SEC21" href="#TOC1">BACKTRACKING CONTROL</a><br>
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<br><a name="SEC23" href="#TOC1">BACKTRACKING CONTROL</a><br>
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<P>
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The following act immediately they are reached:
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<pre>
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@ -468,27 +506,6 @@ pattern is not anchored.
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(*THEN:NAME) equivalent to (*MARK:NAME)(*THEN)
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</PRE>
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</P>
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<br><a name="SEC22" href="#TOC1">NEWLINE CONVENTIONS</a><br>
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<P>
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These are recognized only at the very start of the pattern or after a
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(*BSR_...), (*UTF8), (*UTF16), (*UTF32) or (*UCP) option.
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<pre>
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(*CR) carriage return only
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(*LF) linefeed only
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(*CRLF) carriage return followed by linefeed
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(*ANYCRLF) all three of the above
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(*ANY) any Unicode newline sequence
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</PRE>
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</P>
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<br><a name="SEC23" href="#TOC1">WHAT \R MATCHES</a><br>
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<P>
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These are recognized only at the very start of the pattern or after a
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(*...) option that sets the newline convention or a UTF or UCP mode.
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<pre>
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(*BSR_ANYCRLF) CR, LF, or CRLF
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(*BSR_UNICODE) any Unicode newline sequence
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</PRE>
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</P>
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<br><a name="SEC24" href="#TOC1">CALLOUTS</a><br>
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<P>
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<pre>
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@ -512,9 +529,9 @@ Cambridge CB2 3QH, England.
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</P>
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<br><a name="SEC27" href="#TOC1">REVISION</a><br>
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<P>
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Last updated: 11 November 2012
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Last updated: 08 January 2014
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<br>
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Copyright © 1997-2012 University of Cambridge.
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Copyright © 1997-2014 University of Cambridge.
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<br>
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<p>
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Return to the <a href="index.html">PCRE index page</a>.
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