pod/perlre: Italicize text to indicate non-literal

Also, changes a reference to the section into an actual link.

diff --git a/pod/perlre.pod b/pod/perlre.pod
index 80aa306..e4a0b11 100644 (file)
--- a/pod/perlre.pod
+++ b/pod/perlre.pod
@@ -1407,14 +1407,16 @@ The following pattern matches a parenthesized group:
             \)
          }x;
 
-See also C<(?PARNO)> for a different, more efficient way to accomplish
+See also
+L<C<(?I<PARNO>)>|/(?PARNO) (?-PARNO) (?+PARNO) (?R) (?0)>
+for a different, more efficient way to accomplish
 the same task.
 
 Executing a postponed regular expression 50 times without consuming any
 input string will result in a fatal error.  The maximum depth is compiled
 into perl, so changing it requires a custom build.
 
-=item C<(?PARNO)> C<(?-PARNO)> C<(?+PARNO)> C<(?R)> C<(?0)>
+=item C<(?I<PARNO>)> C<(?-I<PARNO>)> C<(?+I<PARNO>)> C<(?R)> C<(?0)>
 X<(?PARNO)> X<(?1)> X<(?R)> X<(?0)> X<(?-1)> X<(?+1)> X<(?-PARNO)> X<(?+PARNO)>
 X<regex, recursive> X<regexp, recursive> X<regular expression, recursive>
 X<regex, relative recursion>
@@ -1426,10 +1428,10 @@ as an independent pattern that must match at the current position.
 Capture groups contained by the pattern will have the value as determined
 by the outermost recursion.
 
-PARNO is a sequence of digits (not starting with 0) whose value reflects
+I<PARNO> is a sequence of digits (not starting with 0) whose value reflects
 the paren-number of the capture group to recurse to. C<(?R)> recurses to
 the beginning of the whole pattern. C<(?0)> is an alternate syntax for
-C<(?R)>. If PARNO is preceded by a plus or minus sign then it is assumed
+C<(?R)>. If I<PARNO> is preceded by a plus or minus sign then it is assumed
 to be relative, with negative numbers indicating preceding capture groups
 and positive ones following. Thus C<(?-1)> refers to the most recently
 declared group, and C<(?+1)> indicates the next group to be declared.
@@ -1493,7 +1495,7 @@ be processed.
 =item C<(?&NAME)>
 X<(?&NAME)>
 
-Recurse to a named subpattern. Identical to C<(?PARNO)> except that the
+Recurse to a named subpattern. Identical to C<(?I<PARNO>)> except that the
 parenthesis to recurse to is determined by name. If multiple parentheses have
 the same name, then it recurses to the leftmost.
 
@@ -2485,10 +2487,10 @@ else in the whole regular expression.)
 For this grouping operator there is no need to describe the ordering, since
 only whether or not C<S> can match is important.
 
-=item C<(??{ EXPR })>, C<(?PARNO)>
+=item C<(??{ EXPR })>, C<(?I<PARNO>)>
 
 The ordering is the same as for the regular expression which is
-the result of EXPR, or the pattern contained by capture group PARNO.
+the result of EXPR, or the pattern contained by capture group I<PARNO>.
 
 =item C<(?(condition)yes-pattern|no-pattern)>