Allow all characters except closing parens in MARK:NAME etc.

git-svn-id: svn://vcs.exim.org/pcre/code/trunk@643 2f5784b3-3f2a-0410-8824-cb99058d5e15

1 files changed, 4 insertions, 3 deletions

diff --git a/doc/pcrepattern.3 b/doc/pcrepattern.3
index 1a5747a..f4c6cc3 100644
--- a/doc/pcrepattern.3
+++ b/doc/pcrepattern.3
@@ -1835,9 +1835,10 @@ numbering the capturing subpatterns in the whole pattern. However, substring
 capturing is carried out only for positive assertions, because it does not make
 sense for negative assertions.
 .P
-For compatibility with Perl, assertion subpatterns may be repeated, even though
-it makes no sense to assert the same thing several times. In practice, there 
-only three cases:
+For compatibility with Perl, assertion subpatterns may be repeated; though
+it makes no sense to assert the same thing several times, the side effect of 
+capturing parentheses may occasionally be useful. In practice, there only three
+cases:
 .sp
 (1) If the quantifier is {0}, the assertion is never obeyed during matching. 
 However, it may contain internal capturing parenthesized groups that are called