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# Line 14  man page, in case the conversion went wr Line 14  man page, in case the conversion went wr
14  <br>  <br>
15  <ul>  <ul>
16  <li><a name="TOC1" href="#SEC1">PCRE REGULAR EXPRESSION DETAILS</a>  <li><a name="TOC1" href="#SEC1">PCRE REGULAR EXPRESSION DETAILS</a>
17  <li><a name="TOC2" href="#SEC2">CHARACTERS AND METACHARACTERS</a>  <li><a name="TOC2" href="#SEC2">NEWLINE CONVENTIONS</a>
18  <li><a name="TOC3" href="#SEC3">BACKSLASH</a>  <li><a name="TOC3" href="#SEC3">CHARACTERS AND METACHARACTERS</a>
19  <li><a name="TOC4" href="#SEC4">CIRCUMFLEX AND DOLLAR</a>  <li><a name="TOC4" href="#SEC4">BACKSLASH</a>
20  <li><a name="TOC5" href="#SEC5">FULL STOP (PERIOD, DOT)</a>  <li><a name="TOC5" href="#SEC5">CIRCUMFLEX AND DOLLAR</a>
21  <li><a name="TOC6" href="#SEC6">MATCHING A SINGLE BYTE</a>  <li><a name="TOC6" href="#SEC6">FULL STOP (PERIOD, DOT)</a>
22  <li><a name="TOC7" href="#SEC7">SQUARE BRACKETS AND CHARACTER CLASSES</a>  <li><a name="TOC7" href="#SEC7">MATCHING A SINGLE BYTE</a>
23  <li><a name="TOC8" href="#SEC8">POSIX CHARACTER CLASSES</a>  <li><a name="TOC8" href="#SEC8">SQUARE BRACKETS AND CHARACTER CLASSES</a>
24  <li><a name="TOC9" href="#SEC9">VERTICAL BAR</a>  <li><a name="TOC9" href="#SEC9">POSIX CHARACTER CLASSES</a>
25  <li><a name="TOC10" href="#SEC10">INTERNAL OPTION SETTING</a>  <li><a name="TOC10" href="#SEC10">VERTICAL BAR</a>
26  <li><a name="TOC11" href="#SEC11">SUBPATTERNS</a>  <li><a name="TOC11" href="#SEC11">INTERNAL OPTION SETTING</a>
27  <li><a name="TOC12" href="#SEC12">DUPLICATE SUBPATTERN NUMBERS</a>  <li><a name="TOC12" href="#SEC12">SUBPATTERNS</a>
28  <li><a name="TOC13" href="#SEC13">NAMED SUBPATTERNS</a>  <li><a name="TOC13" href="#SEC13">DUPLICATE SUBPATTERN NUMBERS</a>
29  <li><a name="TOC14" href="#SEC14">REPETITION</a>  <li><a name="TOC14" href="#SEC14">NAMED SUBPATTERNS</a>
30  <li><a name="TOC15" href="#SEC15">ATOMIC GROUPING AND POSSESSIVE QUANTIFIERS</a>  <li><a name="TOC15" href="#SEC15">REPETITION</a>
31  <li><a name="TOC16" href="#SEC16">BACK REFERENCES</a>  <li><a name="TOC16" href="#SEC16">ATOMIC GROUPING AND POSSESSIVE QUANTIFIERS</a>
32  <li><a name="TOC17" href="#SEC17">ASSERTIONS</a>  <li><a name="TOC17" href="#SEC17">BACK REFERENCES</a>
33  <li><a name="TOC18" href="#SEC18">CONDITIONAL SUBPATTERNS</a>  <li><a name="TOC18" href="#SEC18">ASSERTIONS</a>
34  <li><a name="TOC19" href="#SEC19">COMMENTS</a>  <li><a name="TOC19" href="#SEC19">CONDITIONAL SUBPATTERNS</a>
35  <li><a name="TOC20" href="#SEC20">RECURSIVE PATTERNS</a>  <li><a name="TOC20" href="#SEC20">COMMENTS</a>
36  <li><a name="TOC21" href="#SEC21">SUBPATTERNS AS SUBROUTINES</a>  <li><a name="TOC21" href="#SEC21">RECURSIVE PATTERNS</a>
37  <li><a name="TOC22" href="#SEC22">CALLOUTS</a>  <li><a name="TOC22" href="#SEC22">SUBPATTERNS AS SUBROUTINES</a>
38  <li><a name="TOC23" href="#SEC23">BACTRACKING CONTROL</a>  <li><a name="TOC23" href="#SEC23">CALLOUTS</a>
39  <li><a name="TOC24" href="#SEC24">SEE ALSO</a>  <li><a name="TOC24" href="#SEC24">BACTRACKING CONTROL</a>
40  <li><a name="TOC25" href="#SEC25">AUTHOR</a>  <li><a name="TOC25" href="#SEC25">SEE ALSO</a>
41  <li><a name="TOC26" href="#SEC26">REVISION</a>  <li><a name="TOC26" href="#SEC26">AUTHOR</a>
42    <li><a name="TOC27" href="#SEC27">REVISION</a>
43  </ul>  </ul>
44  <br><a name="SEC1" href="#TOC1">PCRE REGULAR EXPRESSION DETAILS</a><br>  <br><a name="SEC1" href="#TOC1">PCRE REGULAR EXPRESSION DETAILS</a><br>
45  <P>  <P>
# Line 74  discussed in the Line 75  discussed in the
75  <a href="pcrematching.html"><b>pcrematching</b></a>  <a href="pcrematching.html"><b>pcrematching</b></a>
76  page.  page.
77  </P>  </P>
78  <br><a name="SEC2" href="#TOC1">CHARACTERS AND METACHARACTERS</a><br>  <br><a name="SEC2" href="#TOC1">NEWLINE CONVENTIONS</a><br>
79    <P>
80    PCRE supports five different conventions for indicating line breaks in
81    strings: a single CR (carriage return) character, a single LF (linefeed)
82    character, the two-character sequence CRLF, any of the three preceding, or any
83    Unicode newline sequence. The
84    <a href="pcreapi.html"><b>pcreapi</b></a>
85    page has
86    <a href="pcreapi.html#newlines">further discussion</a>
87    about newlines, and shows how to set the newline convention in the
88    <i>options</i> arguments for the compiling and matching functions.
89    </P>
90    <P>
91    It is also possible to specify a newline convention by starting a pattern
92    string with one of the following five sequences:
93    <pre>
94      (*CR)        carriage return
95      (*LF)        linefeed
96      (*CRLF)      carriage return, followed by linefeed
97      (*ANYCRLF)   any of the three above
98      (*ANY)       all Unicode newline sequences
99    </pre>
100    These override the default and the options given to <b>pcre_compile()</b>. For
101    example, on a Unix system where LF is the default newline sequence, the pattern
102    <pre>
103      (*CR)a.b
104    </pre>
105    changes the convention to CR. That pattern matches "a\nb" because LF is no
106    longer a newline. Note that these special settings, which are not
107    Perl-compatible, are recognized only at the very start of a pattern, and that
108    they must be in upper case.
109    </P>
110    <br><a name="SEC3" href="#TOC1">CHARACTERS AND METACHARACTERS</a><br>
111  <P>  <P>
112  A regular expression is a pattern that is matched against a subject string from  A regular expression is a pattern that is matched against a subject string from
113  left to right. Most characters stand for themselves in a pattern, and match the  left to right. Most characters stand for themselves in a pattern, and match the
# Line 131  a character class the only metacharacter Line 164  a character class the only metacharacter
164  </pre>  </pre>
165  The following sections describe the use of each of the metacharacters.  The following sections describe the use of each of the metacharacters.
166  </P>  </P>
167  <br><a name="SEC3" href="#TOC1">BACKSLASH</a><br>  <br><a name="SEC4" href="#TOC1">BACKSLASH</a><br>
168  <P>  <P>
169  The backslash character has several uses. Firstly, if it is followed by a  The backslash character has several uses. Firstly, if it is followed by a
170  non-alphanumeric character, it takes away any special meaning that character  non-alphanumeric character, it takes away any special meaning that character
# Line 180  represents: Line 213  represents:
213    \cx       "control-x", where x is any character    \cx       "control-x", where x is any character
214    \e        escape (hex 1B)    \e        escape (hex 1B)
215    \f        formfeed (hex 0C)    \f        formfeed (hex 0C)
216    \n        newline (hex 0A)    \n        linefeed (hex 0A)
217    \r        carriage return (hex 0D)    \r        carriage return (hex 0D)
218    \t        tab (hex 09)    \t        tab (hex 09)
219    \ddd      character with octal code ddd, or backreference    \ddd      character with octal code ddd, or backreference
# Line 675  If all the alternatives of a pattern beg Line 708  If all the alternatives of a pattern beg
708  to the starting match position, and the "anchored" flag is set in the compiled  to the starting match position, and the "anchored" flag is set in the compiled
709  regular expression.  regular expression.
710  </P>  </P>
711  <br><a name="SEC4" href="#TOC1">CIRCUMFLEX AND DOLLAR</a><br>  <br><a name="SEC5" href="#TOC1">CIRCUMFLEX AND DOLLAR</a><br>
712  <P>  <P>
713  Outside a character class, in the default matching mode, the circumflex  Outside a character class, in the default matching mode, the circumflex
714  character is an assertion that is true only if the current matching point is  character is an assertion that is true only if the current matching point is
# Line 729  Note that the sequences \A, \Z, and \z c Line 762  Note that the sequences \A, \Z, and \z c
762  end of the subject in both modes, and if all branches of a pattern start with  end of the subject in both modes, and if all branches of a pattern start with
763  \A it is always anchored, whether or not PCRE_MULTILINE is set.  \A it is always anchored, whether or not PCRE_MULTILINE is set.
764  </P>  </P>
765  <br><a name="SEC5" href="#TOC1">FULL STOP (PERIOD, DOT)</a><br>  <br><a name="SEC6" href="#TOC1">FULL STOP (PERIOD, DOT)</a><br>
766  <P>  <P>
767  Outside a character class, a dot in the pattern matches any one character in  Outside a character class, a dot in the pattern matches any one character in
768  the subject string except (by default) a character that signifies the end of a  the subject string except (by default) a character that signifies the end of a
# Line 754  The handling of dot is entirely independ Line 787  The handling of dot is entirely independ
787  dollar, the only relationship being that they both involve newlines. Dot has no  dollar, the only relationship being that they both involve newlines. Dot has no
788  special meaning in a character class.  special meaning in a character class.
789  </P>  </P>
790  <br><a name="SEC6" href="#TOC1">MATCHING A SINGLE BYTE</a><br>  <br><a name="SEC7" href="#TOC1">MATCHING A SINGLE BYTE</a><br>
791  <P>  <P>
792  Outside a character class, the escape sequence \C matches any one byte, both  Outside a character class, the escape sequence \C matches any one byte, both
793  in and out of UTF-8 mode. Unlike a dot, it always matches any line-ending  in and out of UTF-8 mode. Unlike a dot, it always matches any line-ending
# Line 769  PCRE does not allow \C to appear in look Line 802  PCRE does not allow \C to appear in look
802  because in UTF-8 mode this would make it impossible to calculate the length of  because in UTF-8 mode this would make it impossible to calculate the length of
803  the lookbehind.  the lookbehind.
804  <a name="characterclass"></a></P>  <a name="characterclass"></a></P>
805  <br><a name="SEC7" href="#TOC1">SQUARE BRACKETS AND CHARACTER CLASSES</a><br>  <br><a name="SEC8" href="#TOC1">SQUARE BRACKETS AND CHARACTER CLASSES</a><br>
806  <P>  <P>
807  An opening square bracket introduces a character class, terminated by a closing  An opening square bracket introduces a character class, terminated by a closing
808  square bracket. A closing square bracket on its own is not special. If a  square bracket. A closing square bracket on its own is not special. If a
# Line 864  introducing a POSIX class name - see the Line 897  introducing a POSIX class name - see the
897  closing square bracket. However, escaping other non-alphanumeric characters  closing square bracket. However, escaping other non-alphanumeric characters
898  does no harm.  does no harm.
899  </P>  </P>
900  <br><a name="SEC8" href="#TOC1">POSIX CHARACTER CLASSES</a><br>  <br><a name="SEC9" href="#TOC1">POSIX CHARACTER CLASSES</a><br>
901  <P>  <P>
902  Perl supports the POSIX notation for character classes. This uses names  Perl supports the POSIX notation for character classes. This uses names
903  enclosed by [: and :] within the enclosing square brackets. PCRE also supports  enclosed by [: and :] within the enclosing square brackets. PCRE also supports
# Line 910  supported, and an error is given if they Line 943  supported, and an error is given if they
943  In UTF-8 mode, characters with values greater than 128 do not match any of  In UTF-8 mode, characters with values greater than 128 do not match any of
944  the POSIX character classes.  the POSIX character classes.
945  </P>  </P>
946  <br><a name="SEC9" href="#TOC1">VERTICAL BAR</a><br>  <br><a name="SEC10" href="#TOC1">VERTICAL BAR</a><br>
947  <P>  <P>
948  Vertical bar characters are used to separate alternative patterns. For example,  Vertical bar characters are used to separate alternative patterns. For example,
949  the pattern  the pattern
# Line 925  that succeeds is used. If the alternativ Line 958  that succeeds is used. If the alternativ
958  "succeeds" means matching the rest of the main pattern as well as the  "succeeds" means matching the rest of the main pattern as well as the
959  alternative in the subpattern.  alternative in the subpattern.
960  </P>  </P>
961  <br><a name="SEC10" href="#TOC1">INTERNAL OPTION SETTING</a><br>  <br><a name="SEC11" href="#TOC1">INTERNAL OPTION SETTING</a><br>
962  <P>  <P>
963  The settings of the PCRE_CASELESS, PCRE_MULTILINE, PCRE_DOTALL, and  The settings of the PCRE_CASELESS, PCRE_MULTILINE, PCRE_DOTALL, and
964  PCRE_EXTENDED options can be changed from within the pattern by a sequence of  PCRE_EXTENDED options can be changed from within the pattern by a sequence of
# Line 973  The PCRE-specific options PCRE_DUPNAMES, Line 1006  The PCRE-specific options PCRE_DUPNAMES,
1006  changed in the same way as the Perl-compatible options by using the characters  changed in the same way as the Perl-compatible options by using the characters
1007  J, U and X respectively.  J, U and X respectively.
1008  <a name="subpattern"></a></P>  <a name="subpattern"></a></P>
1009  <br><a name="SEC11" href="#TOC1">SUBPATTERNS</a><br>  <br><a name="SEC12" href="#TOC1">SUBPATTERNS</a><br>
1010  <P>  <P>
1011  Subpatterns are delimited by parentheses (round brackets), which can be nested.  Subpatterns are delimited by parentheses (round brackets), which can be nested.
1012  Turning part of a pattern into a subpattern does two things:  Turning part of a pattern into a subpattern does two things:
# Line 1027  from left to right, and options are not Line 1060  from left to right, and options are not
1060  is reached, an option setting in one branch does affect subsequent branches, so  is reached, an option setting in one branch does affect subsequent branches, so
1061  the above patterns match "SUNDAY" as well as "Saturday".  the above patterns match "SUNDAY" as well as "Saturday".
1062  </P>  </P>
1063  <br><a name="SEC12" href="#TOC1">DUPLICATE SUBPATTERN NUMBERS</a><br>  <br><a name="SEC13" href="#TOC1">DUPLICATE SUBPATTERN NUMBERS</a><br>
1064  <P>  <P>
1065  Perl 5.10 introduced a feature whereby each alternative in a subpattern uses  Perl 5.10 introduced a feature whereby each alternative in a subpattern uses
1066  the same numbers for its capturing parentheses. Such a subpattern starts with  the same numbers for its capturing parentheses. Such a subpattern starts with
# Line 1058  the first one in the pattern with the gi Line 1091  the first one in the pattern with the gi
1091  An alternative approach to using this "branch reset" feature is to use  An alternative approach to using this "branch reset" feature is to use
1092  duplicate named subpatterns, as described in the next section.  duplicate named subpatterns, as described in the next section.
1093  </P>  </P>
1094  <br><a name="SEC13" href="#TOC1">NAMED SUBPATTERNS</a><br>  <br><a name="SEC14" href="#TOC1">NAMED SUBPATTERNS</a><br>
1095  <P>  <P>
1096  Identifying capturing parentheses by number is simple, but it can be very hard  Identifying capturing parentheses by number is simple, but it can be very hard
1097  to keep track of the numbers in complicated regular expressions. Furthermore,  to keep track of the numbers in complicated regular expressions. Furthermore,
# Line 1113  details of the interfaces for handling n Line 1146  details of the interfaces for handling n
1146  <a href="pcreapi.html"><b>pcreapi</b></a>  <a href="pcreapi.html"><b>pcreapi</b></a>
1147  documentation.  documentation.
1148  </P>  </P>
1149  <br><a name="SEC14" href="#TOC1">REPETITION</a><br>  <br><a name="SEC15" href="#TOC1">REPETITION</a><br>
1150  <P>  <P>
1151  Repetition is specified by quantifiers, which can follow any of the following  Repetition is specified by quantifiers, which can follow any of the following
1152  items:  items:
# Line 1264  example, after Line 1297  example, after
1297  </pre>  </pre>
1298  matches "aba" the value of the second captured substring is "b".  matches "aba" the value of the second captured substring is "b".
1299  <a name="atomicgroup"></a></P>  <a name="atomicgroup"></a></P>
1300  <br><a name="SEC15" href="#TOC1">ATOMIC GROUPING AND POSSESSIVE QUANTIFIERS</a><br>  <br><a name="SEC16" href="#TOC1">ATOMIC GROUPING AND POSSESSIVE QUANTIFIERS</a><br>
1301  <P>  <P>
1302  With both maximizing ("greedy") and minimizing ("ungreedy" or "lazy")  With both maximizing ("greedy") and minimizing ("ungreedy" or "lazy")
1303  repetition, failure of what follows normally causes the repeated item to be  repetition, failure of what follows normally causes the repeated item to be
# Line 1368  an atomic group, like this: Line 1401  an atomic group, like this:
1401  </pre>  </pre>
1402  sequences of non-digits cannot be broken, and failure happens quickly.  sequences of non-digits cannot be broken, and failure happens quickly.
1403  <a name="backreferences"></a></P>  <a name="backreferences"></a></P>
1404  <br><a name="SEC16" href="#TOC1">BACK REFERENCES</a><br>  <br><a name="SEC17" href="#TOC1">BACK REFERENCES</a><br>
1405  <P>  <P>
1406  Outside a character class, a backslash followed by a digit greater than 0 (and  Outside a character class, a backslash followed by a digit greater than 0 (and
1407  possibly further digits) is a back reference to a capturing subpattern earlier  possibly further digits) is a back reference to a capturing subpattern earlier
# Line 1482  that the first iteration does not need t Line 1515  that the first iteration does not need t
1515  done using alternation, as in the example above, or by a quantifier with a  done using alternation, as in the example above, or by a quantifier with a
1516  minimum of zero.  minimum of zero.
1517  <a name="bigassertions"></a></P>  <a name="bigassertions"></a></P>
1518  <br><a name="SEC17" href="#TOC1">ASSERTIONS</a><br>  <br><a name="SEC18" href="#TOC1">ASSERTIONS</a><br>
1519  <P>  <P>
1520  An assertion is a test on the characters following or preceding the current  An assertion is a test on the characters following or preceding the current
1521  matching point that does not actually consume any characters. The simple  matching point that does not actually consume any characters. The simple
# Line 1642  preceded by "foo", while Line 1675  preceded by "foo", while
1675  is another pattern that matches "foo" preceded by three digits and any three  is another pattern that matches "foo" preceded by three digits and any three
1676  characters that are not "999".  characters that are not "999".
1677  <a name="conditions"></a></P>  <a name="conditions"></a></P>
1678  <br><a name="SEC18" href="#TOC1">CONDITIONAL SUBPATTERNS</a><br>  <br><a name="SEC19" href="#TOC1">CONDITIONAL SUBPATTERNS</a><br>
1679  <P>  <P>
1680  It is possible to cause the matching process to obey a subpattern  It is possible to cause the matching process to obey a subpattern
1681  conditionally or to choose between two alternative subpatterns, depending on  conditionally or to choose between two alternative subpatterns, depending on
# Line 1780  subject is matched against the first alt Line 1813  subject is matched against the first alt
1813  against the second. This pattern matches strings in one of the two forms  against the second. This pattern matches strings in one of the two forms
1814  dd-aaa-dd or dd-dd-dd, where aaa are letters and dd are digits.  dd-aaa-dd or dd-dd-dd, where aaa are letters and dd are digits.
1815  <a name="comments"></a></P>  <a name="comments"></a></P>
1816  <br><a name="SEC19" href="#TOC1">COMMENTS</a><br>  <br><a name="SEC20" href="#TOC1">COMMENTS</a><br>
1817  <P>  <P>
1818  The sequence (?# marks the start of a comment that continues up to the next  The sequence (?# marks the start of a comment that continues up to the next
1819  closing parenthesis. Nested parentheses are not permitted. The characters  closing parenthesis. Nested parentheses are not permitted. The characters
# Line 1791  If the PCRE_EXTENDED option is set, an u Line 1824  If the PCRE_EXTENDED option is set, an u
1824  character class introduces a comment that continues to immediately after the  character class introduces a comment that continues to immediately after the
1825  next newline in the pattern.  next newline in the pattern.
1826  <a name="recursion"></a></P>  <a name="recursion"></a></P>
1827  <br><a name="SEC20" href="#TOC1">RECURSIVE PATTERNS</a><br>  <br><a name="SEC21" href="#TOC1">RECURSIVE PATTERNS</a><br>
1828  <P>  <P>
1829  Consider the problem of matching a string in parentheses, allowing for  Consider the problem of matching a string in parentheses, allowing for
1830  unlimited nested parentheses. Without the use of recursion, the best that can  unlimited nested parentheses. Without the use of recursion, the best that can
# Line 1921  In this pattern, (?(R) is the start of a Line 1954  In this pattern, (?(R) is the start of a
1954  different alternatives for the recursive and non-recursive cases. The (?R) item  different alternatives for the recursive and non-recursive cases. The (?R) item
1955  is the actual recursive call.  is the actual recursive call.
1956  <a name="subpatternsassubroutines"></a></P>  <a name="subpatternsassubroutines"></a></P>
1957  <br><a name="SEC21" href="#TOC1">SUBPATTERNS AS SUBROUTINES</a><br>  <br><a name="SEC22" href="#TOC1">SUBPATTERNS AS SUBROUTINES</a><br>
1958  <P>  <P>
1959  If the syntax for a recursive subpattern reference (either by number or by  If the syntax for a recursive subpattern reference (either by number or by
1960  name) is used outside the parentheses to which it refers, it operates like a  name) is used outside the parentheses to which it refers, it operates like a
# Line 1961  changed for different calls. For example Line 1994  changed for different calls. For example
1994  It matches "abcabc". It does not match "abcABC" because the change of  It matches "abcabc". It does not match "abcABC" because the change of
1995  processing option does not affect the called subpattern.  processing option does not affect the called subpattern.
1996  </P>  </P>
1997  <br><a name="SEC22" href="#TOC1">CALLOUTS</a><br>  <br><a name="SEC23" href="#TOC1">CALLOUTS</a><br>
1998  <P>  <P>
1999  Perl has a feature whereby using the sequence (?{...}) causes arbitrary Perl  Perl has a feature whereby using the sequence (?{...}) causes arbitrary Perl
2000  code to be obeyed in the middle of matching a regular expression. This makes it  code to be obeyed in the middle of matching a regular expression. This makes it
# Line 1996  description of the interface to the call Line 2029  description of the interface to the call
2029  <a href="pcrecallout.html"><b>pcrecallout</b></a>  <a href="pcrecallout.html"><b>pcrecallout</b></a>
2030  documentation.  documentation.
2031  </P>  </P>
2032  <br><a name="SEC23" href="#TOC1">BACTRACKING CONTROL</a><br>  <br><a name="SEC24" href="#TOC1">BACTRACKING CONTROL</a><br>
2033  <P>  <P>
2034  Perl 5.10 introduced a number of "Special Backtracking Control Verbs", which  Perl 5.10 introduced a number of "Special Backtracking Control Verbs", which
2035  are described in the Perl documentation as "experimental and subject to change  are described in the Perl documentation as "experimental and subject to change
# Line 2111  the end of the group if FOO succeeds); o Line 2144  the end of the group if FOO succeeds); o
2144  second alternative and tries COND2, without backtracking into COND1. If (*THEN)  second alternative and tries COND2, without backtracking into COND1. If (*THEN)
2145  is used outside of any alternation, it acts exactly like (*PRUNE).  is used outside of any alternation, it acts exactly like (*PRUNE).
2146  </P>  </P>
2147  <br><a name="SEC24" href="#TOC1">SEE ALSO</a><br>  <br><a name="SEC25" href="#TOC1">SEE ALSO</a><br>
2148  <P>  <P>
2149  <b>pcreapi</b>(3), <b>pcrecallout</b>(3), <b>pcrematching</b>(3), <b>pcre</b>(3).  <b>pcreapi</b>(3), <b>pcrecallout</b>(3), <b>pcrematching</b>(3), <b>pcre</b>(3).
2150  </P>  </P>
2151  <br><a name="SEC25" href="#TOC1">AUTHOR</a><br>  <br><a name="SEC26" href="#TOC1">AUTHOR</a><br>
2152  <P>  <P>
2153  Philip Hazel  Philip Hazel
2154  <br>  <br>
# Line 2124  University Computing Service Line 2157  University Computing Service
2157  Cambridge CB2 3QH, England.  Cambridge CB2 3QH, England.
2158  <br>  <br>
2159  </P>  </P>
2160  <br><a name="SEC26" href="#TOC1">REVISION</a><br>  <br><a name="SEC27" href="#TOC1">REVISION</a><br>
2161  <P>  <P>
2162  Last updated: 09 August 2007  Last updated: 21 August 2007
2163  <br>  <br>
2164  Copyright &copy; 1997-2007 University of Cambridge.  Copyright &copy; 1997-2007 University of Cambridge.
2165  <br>  <br>
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