Remove atomic restriction on capture groups containing recursive back

references, as since 10.30 it has been unnecessary.


git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@1193 6239d852-aaf2-0410-a92c-79f79f948069

3 files changed, 46 insertions, 46 deletions

diff --git a/doc/html/pcre2pattern.html b/doc/html/pcre2pattern.html
index 0aa2191..f365306 100644
--- a/doc/html/pcre2pattern.html
+++ b/doc/html/pcre2pattern.html
@@ -2349,11 +2349,11 @@ using alternation, as in the example above, or by a quantifier with a minimum
 of zero.
 </P>
 <P>
-Backreferences of this type cause the group that they reference to be treated
-as an
+For versions of PCRE2 less than 10.25, backreferences of this type used to
+cause the group that they reference to be treated as an
 <a href="#atomicgroup">atomic group.</a>
-Once the whole group has been matched, a subsequent matching failure cannot
-cause backtracking into the middle of the group.
+This restriction no longer applies, and backtracking into such groups can occur 
+as normal.
 <a name="bigassertions"></a></P>
 <br><a name="SEC20" href="#TOC1">ASSERTIONS</a><br>
 <P>
@@ -3833,7 +3833,7 @@ Cambridge, England.
 </P>
 <br><a name="SEC32" href="#TOC1">REVISION</a><br>
 <P>
-Last updated: 29 July 2019
+Last updated: 18 December 2019
 <br>
 Copyright &copy; 1997-2019 University of Cambridge.
 <br>
diff --git a/doc/pcre2.txt b/doc/pcre2.txt
index 948b91a..ed4b4e3 100644
--- a/doc/pcre2.txt
+++ b/doc/pcre2.txt
@@ -180,8 +180,8 @@ REVISION
        Last updated: 17 September 2018
        Copyright (c) 1997-2018 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2API(3)                Library Functions Manual                PCRE2API(3)
 
 
@@ -3724,8 +3724,8 @@ REVISION
        Last updated: 02 September 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2BUILD(3)              Library Functions Manual              PCRE2BUILD(3)
 
 
@@ -4296,8 +4296,8 @@ REVISION
        Last updated: 03 March 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2CALLOUT(3)            Library Functions Manual            PCRE2CALLOUT(3)
 
 
@@ -4726,8 +4726,8 @@ REVISION
        Last updated: 03 February 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2COMPAT(3)             Library Functions Manual             PCRE2COMPAT(3)
 
 
@@ -4935,8 +4935,8 @@ REVISION
        Last updated: 13 July 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2JIT(3)                Library Functions Manual                PCRE2JIT(3)
 
 
@@ -5360,8 +5360,8 @@ REVISION
        Last updated: 23 May 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2LIMITS(3)             Library Functions Manual             PCRE2LIMITS(3)
 
 
@@ -5430,8 +5430,8 @@ REVISION
        Last updated: 02 February 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2MATCHING(3)           Library Functions Manual           PCRE2MATCHING(3)
 
 
@@ -5654,8 +5654,8 @@ REVISION
        Last updated: 23 May 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2PARTIAL(3)            Library Functions Manual            PCRE2PARTIAL(3)
 
 
@@ -6034,8 +6034,8 @@ REVISION
        Last updated: 04 September 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2PATTERN(3)            Library Functions Manual            PCRE2PATTERN(3)
 
 
@@ -8078,10 +8078,10 @@ BACKREFERENCES
        the backreference. This can be done using alternation, as in the  exam-
        ple above, or by a quantifier with a minimum of zero.
 
-       Backreferences  of  this type cause the group that they reference to be
-       treated as an atomic group.  Once the whole group has been  matched,  a
-       subsequent  matching  failure cannot cause backtracking into the middle
-       of the group.
+       For versions of PCRE2 less than 10.25, backreferences of this type used
+       to cause the group that they reference  to  be  treated  as  an  atomic
+       group.   This restriction no longer applies, and backtracking into such
+       groups can occur as normal.
 
 
 ASSERTIONS
@@ -9463,11 +9463,11 @@ AUTHOR
 
 REVISION
 
-       Last updated: 29 July 2019
+       Last updated: 18 December 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2PERFORM(3)            Library Functions Manual            PCRE2PERFORM(3)
 
 
@@ -9701,8 +9701,8 @@ REVISION
        Last updated: 03 February 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2POSIX(3)              Library Functions Manual              PCRE2POSIX(3)
 
 
@@ -10031,8 +10031,8 @@ REVISION
        Last updated: 30 January 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2SAMPLE(3)             Library Functions Manual             PCRE2SAMPLE(3)
 
 
@@ -10310,8 +10310,8 @@ REVISION
        Last updated: 27 June 2018
        Copyright (c) 1997-2018 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2SYNTAX(3)             Library Functions Manual             PCRE2SYNTAX(3)
 
 
@@ -10823,8 +10823,8 @@ REVISION
        Last updated: 29 July 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
 PCRE2UNICODE(3)            Library Functions Manual            PCRE2UNICODE(3)
 
 
@@ -11256,5 +11256,5 @@ REVISION
        Last updated: 24 May 2019
        Copyright (c) 1997-2019 University of Cambridge.
 ------------------------------------------------------------------------------
-
-
+ 
+ 
diff --git a/doc/pcre2pattern.3 b/doc/pcre2pattern.3
index d5228f3..dbf7634 100644
--- a/doc/pcre2pattern.3
+++ b/doc/pcre2pattern.3
@@ -1,4 +1,4 @@
-.TH PCRE2PATTERN 3 "29 July 2019" "PCRE2 10.34"
+.TH PCRE2PATTERN 3 "18 December 2019" "PCRE2 10.35"
 .SH NAME
 PCRE2 - Perl-compatible regular expressions (revised API)
 .SH "PCRE2 REGULAR EXPRESSION DETAILS"
@@ -2346,14 +2346,14 @@ the first iteration does not need to match the backreference. This can be done
 using alternation, as in the example above, or by a quantifier with a minimum
 of zero.
 .P
-Backreferences of this type cause the group that they reference to be treated
-as an
+For versions of PCRE2 less than 10.25, backreferences of this type used to
+cause the group that they reference to be treated as an
 .\" HTML <a href="#atomicgroup">
 .\" </a>
 atomic group.
 .\"
-Once the whole group has been matched, a subsequent matching failure cannot
-cause backtracking into the middle of the group.
+This restriction no longer applies, and backtracking into such groups can occur 
+as normal.
 .
 .
 .\" HTML <a name="bigassertions"></a>
@@ -3874,6 +3874,6 @@ Cambridge, England.
 .rs
 .sp
 .nf
-Last updated: 29 July 2019
+Last updated: 18 December 2019
 Copyright (c) 1997-2019 University of Cambridge.
 .fi