=item *
-UTF-8 identifier names should probably be canonized: NFC?
+UTF-8 identifier names should probably be canonicalized: NFC?
=item *
UTF-8 in package names and sub names? The first is problematic
-because of the mapping to pathnames, ditto for the second one is
+because of the mapping to pathnames, ditto for the second one if
one does autosplitting, for example.
=back
See L<perlunicode/UNICODE REGULAR EXPRESSION SUPPORT LEVEL> for what's
there and what's missing. Almost all of Levels 2 and 3 is missing,
and as of 5.8.0 not even all of Level 1 is there.
-They have some tricks Perl doesn't yet implement like character
+They have some tricks Perl doesn't yet implement, such as character
class subtraction.
http://www.unicode.org/unicode/reports/tr18/
-=head2 use Thread for iThreads
+=head2 Work out exit/die semantics for threads
-Artur Bergman's C<iThreads> module is a start on this, but needs to
-be more mature.
+There are some suggestions to use for example something like this:
+default to "(thread exiting first will) wait for the other threads
+until up to 60 seconds". Other possibilities:
-=head2 make perl_clone optionally clone ops
+ use threads wait => 0;
-So that pseudoforking, mod_perl, iThreads and nvi will work properly
-(but not as efficiently) until the regex engine is fixed to be threadsafe.
+Do not wait.
-=head2 Work out exit/die semantics for threads
+ use threads wait_for => 10;
+
+Wait up to 10 seconds.
+
+ use threads wait_for => -1;
+
+Wait for ever.
+
+http://archive.develooper.com/perl5-porters@perl.org/msg79618.html
+
+=head2 Better support for nonpreemptive threading systems like PTH
+
+To better support nonpreemptive threading systems perhaps some of the
+blocking functions internally in perl should do a yield() before a
+blocking call.
+
+In some cases, like GNUpth, which has replacement functions that
+are non blocking (pth_select instead of select), maybe per should
+be using them instead when built for threading.
=head2 Typed lexicals for compiler
http://oss.software.ibm.com/developerworks/opensource/icu/project/
-=head2 Thread-safe regexes
-
-The regular expression engine is currently non-threadsafe.
-
=head2 Arithmetic on non-Arabic numerals
C<[1234567890]> aren't the only numerals any more.
=head2 POSIX Unicode character classes
-(C<[=a=]> for equivalance classes, C<[.ch.]> for collation.)
+(C<[=a=]> for equivalence classes, C<[.ch.]> for collation.)
These are dependent on Unicode normalization and collation.
=head2 Factoring out common suffices/prefices in regexps (trie optimization)
=head2 Replace pod2html with something using Pod::Parser
The CPAN module C<Marek::Pod::Html> may be a more suitable basis for a
-C<pod2html> convertor; the current one duplicates the functionality
+C<pod2html> converter; the current one duplicates the functionality
abstracted in C<Pod::Parser>, which makes updating the POD language
difficult.
C<qr//> already gives us a way of saving compiled regexps, but it should
be done automatically.
-=head2 Re-entrant functions
-
-Add configure probes for C<_r> forms of system calls and fit them to the
-core. Unfortunately, calling conventions for these functions and not
-standardised.
-
=head2 Cross-compilation support
Bart Schuller reports that using C<microperl> and a cross-compiler, he
This should be allowed if the new keyset is a subset of the old
keyset. May require more extra code than we'd like in pp_aassign.
+=head2 Should overload be inheritable?
+
+Should overload be 'contagious' through @ISA so that derived classes
+would inherit their base classes' overload definitions? What to do
+in case of overload conflicts?
+
+=head2 Taint rethink
+
+Should taint be stopped from affecting control flow, if ($tainted)?
+Should tainted symbolic method calls and subref calls be stopped?
+(Look at Ruby's $SAFE levels for inspiration?)
+
=head1 Vague ideas
Ideas which have been discussed, and which may or may not happen.
projects / p5sagit/p5-mst-13.2.git / blobdiff