- append a "..." to the produced string if the maximum length is exceeded
- really fancy: print unicode characters as \N{...}
-NOTE: pv_display(), pv_uni_display(), sv_uni_display() are doing
-something like the above.
+NOTE: pv_display(), pv_uni_display(), sv_uni_display() are already
+doing something like the above.
=head2 Overloadable regex assertions
All the code we ship with Perl needs to be sensible about temporary file
handling, locking, input validation, and so on.
+=head2 Sort out the uid-setting mess
+
+Currently there are several problems with the setting of uids ($<, $>
+for the real and effective uids). Firstly, what exactly setuid() call
+gets invoked in which platform is simply a big mess that needs to be
+untangled. Secondly, the effects are apparently not standard across
+platforms, (if you first set $< and then $>, or vice versa, being
+uid==euid== zero, or just euid==zero, or as a normal user, what are
+the results?). The test suite not (usually) being run as root means
+that these things do not get much testing. Thirdly, there's quite
+often a third uid called saved uid, and Perl has no knowledge of that
+feature in any way. (If one has the saved uid of zero, one can get
+back any real and effective uids.) As an example, to change also the
+saved uid, one needs to set the real and effective uids B<twice>-- in
+most systems, that is: in HP-UX that doesn't seem to work.
+
=head2 Custom opcodes
Have a way to introduce user-defined opcodes without the subroutine call
Mark-Jason Dominus has the beginnings of one of these.
-=head2 pack/unpack tutorial
-
-Simon Cozens has the beginnings of one of these.
-
=head2 Rewrite perldoc
There are a few suggestions for what to do with C<perldoc>: maybe a
pass the process ID. It would be good to do this with the Perl debugger
on a running Perl program, although I'm not sure how it would be done.
-=head2 Alternative RE syntax module
-
- use Regex::Newbie;
- $re = Regex::Newbie->new
- ->start
- ->match("foo")
- ->repeat(Regex::Newbie->class("char"),3)
- ->end;
- /$re/;
-
=head2 GUI::Native
A non-core module that would use "native" GUI to create graphical
These are things which have been on the todo lists in previous releases
but have recently been completed.
+=head2 Alternative RE syntax module
+
+The C<Regexp::English> module, available from the CPAN, provides this:
+
+ my $re = Regexp::English
+ -> start_of_line
+ -> literal('Flippers')
+ -> literal(':')
+ -> optional
+ -> whitespace_char
+ -> end
+ -> remember
+ -> multiple
+ -> digit;
+
+ /$re/;
+
=head2 Safe signal handling
A new signal model went into 5.7.1 without much fanfare. Operations and
(see the UNIX FAQ for details). This needs to go somewhere near
pp_sys.c:pp_truncate().
+One can emulate truncate() easily if one has ftruncate().
+This emulation should also go near pp_sys.pp_truncate().
+
+=head2 pack/unpack tutorial
+
+Wolfgang Laun finished what Simon Cozens started.
+
=cut