=item l subname
-List first window of lines from subroutine.
+List first window of lines from subroutine. I<subname> may
+be a variable which contains a code reference.
=item -
is not a full filename as found in values of %INC, it is considered as
a regexp.
+C<eval>ed strings (when accessible) are considered to be filenames:
+C<f (eval 7)> and C<f eval 7\b> access the body of the 7th C<eval>ed string
+(in the order of execution). The bodies of currently executed C<eval>
+and of C<eval>ed strings which define subroutines are saved, thus are
+accessible by this mechanism.
+
=item /pattern/
Search forwards for pattern; final / is optional.
=item b subname [condition]
-Set a breakpoint at the first line of the named subroutine.
+Set a breakpoint at the first line of the named subroutine. I<subname> may
+be a variable which contains a code reference (in this case I<condition>
+is not supported).
=item b postpone subname [condition]