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Diffstat (limited to 'contrib/perl5/Todo-5.6')
| -rw-r--r-- | contrib/perl5/Todo-5.6 | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/contrib/perl5/Todo-5.6 b/contrib/perl5/Todo-5.6 new file mode 100644 index 000000000000..9abeb55ebb7a --- /dev/null +++ b/contrib/perl5/Todo-5.6 @@ -0,0 +1,156 @@ +Unicode support + finish byte <-> utf8 and localencoding <-> utf8 conversions + make substr($bytestr,0,0,$charstr) do the right conversion + add Unicode::Map equivivalent to core + add support for I/O disciplines + - a way to specify disciplines when opening things: + open(F, "<:crlf :utf16", $file) + - a way to specify disciplines for an already opened handle: + binmode(STDIN, ":slurp :raw") + - a way to set default disciplines for all handle constructors: + use open IN => ":any", OUT => ":utf8", SYS => ":utf16" + eliminate need for "use utf8;" + autoload byte.pm when byte:: is seen by the parser + check uv_to_utf8() calls for buffer overflow + (see also "Locales", "Regexen", and "Miscellaneous") + +Multi-threading + support "use Thread;" under useithreads + add mechanism to: + - create new interpreter in a different thread + - exchange data between interpreters/threads + - share namespaces between interpreters/threads + work out consistent semantics for exit/die in threads + support for externally created threads? + Thread::Pool? + +Compiler + auto-produce executable + typed lexicals should affect B::CC::load_pad + workarounds to help Win32 + END blocks need saving in compiled output + _AUTOLOAD prodding + fix comppadlist (names in comppad_name can have fake SvCUR + from where newASSIGNOP steals the field) + +Namespace cleanup + CPP-space: restrict what we export from headers when !PERL_CORE + header-space: move into CORE/perl/? + API-space: complete the list of things that constitute public api + +Configure + fix the vicious cyclic multidependency of cc <-> libpth <-> loclibpth + libswanted <-> usethreads <-> use64bitint <-> use64bitall <-> + uselargefiles <-> ... + make configuring+building away from source directory work (VPATH et al) + this is related to: cross-compilation configuring (see Todo) + _r support (see Todo for mode detailed description) + POSIX 1003.1 1996 Edition support--realtime stuff: + POSIX semaphores, message queues, shared memory, realtime clocks, + timers, signals (the metaconfig units mostly already exist for these) + UNIX98 support: reader-writer locks, realtime/asynchronous IO + IPv6 support: see RFC2292, RFC2553 + +Long doubles + figure out where the PV->NV->PV conversion gets it wrong at least + in AIX and Tru64 (V5.0 and onwards) when using long doubles: see the + regexp tricks we had to insert to t/comp/use.t and t/lib/bigfltpm.t, + (?:9|8999\d+) and the like. + +64-bit support + Configure probe for quad_t, uquad_t, and (argh) u_quad_t, they might + be in some systems the only thing working as quadtype and uquadtype. + +Locales + deprecate traditional/legacy locales? + How do locales work across packages? + figure out how to support Unicode locales + suggestion: integrate the IBM Classes for Unicode (ICU) + http://oss.software.ibm.com/developerworks/opensource/icu/project/ + and check out also the Locale Converter: + http://alphaworks.ibm.com/tech/localeconverter + ICU is "portable, open-source Unicode library with: + charset-independent locales (with multiple locales simultaneously + supported in same thread; character conversions; formatting/parsing + for numbers, currencies, date/time and messages; message catalogs + (resources) ; transliteration, collation, normalization, and text + boundaries (grapheme, word, line-break))". + There is also 'iconv', either from XPG4 or GNU (glibc). + iconv is about character set conversions. + Either ICU or iconv would be valuable to get integrated + into Perl, Configure already probes for libiconv and <iconv.h>. + +Regexen + make RE engine thread-safe + a way to do full character set arithmetics: now one can do + addition, negate a whole class, and negate certain subclasses + (e.g. \D, [:^digit:]), but a more generic way to add/subtract/ + intersect characters/classes, like described in the Unicode technical + report on Regular Expression Guidelines, + http://www.unicode.org/unicode/reports/tr18/ + (amusingly, the TR notes that difference and intersection + can be done using "Perl-style look-ahead") + difference syntax? maybe [[:alpha:][^abc]] meaning + "all alphabetic expect a, b, and c"? or [[:alpha:]-[abc]]? + (maybe bad, as we explicitly disallow such 'ranges') + intersection syntax? maybe [[..]&[...]]? + POSIX [=bar=] and [.zap.] would nice too but there's no API for them + =bar= could be done with Unicode, though, see the Unicode TR #15 about + normalization forms: + http://www.unicode.org/unicode/reports/tr15/ + this is also a part of the Unicode 3.0: + http://www.unicode.org/unicode/uni2book/u2.html + executive summary: there are several different levels of 'equivalence' + approximate matching + +Security + use fchown, fchmod (and futimes?) internally when possible + use fchdir(how portable?) + create secure reliable portable temporary file modules + audit the standard utilities for security problems and fix them + +Reliable Signals + custom opcodes + alternate runops() for signal despatch + figure out how to die() in delayed sighandler + make Thread::Signal work under useithreads + +Win32 stuff + sort out the spawnvp() mess for system('a','b','c') compatibility + work out DLL versioning + +Miscellaneous + add new modules (Archive::Tar, Compress::Zlib, CPAN::FTP?) + sub-second sleep()? alarm()? time()? (integrate Time::HiRes? + Configure doesn't yet probe for usleep/nanosleep/ualarm but + the units exist) + floating point handling: nans, infinities, fp exception masks, etc. + at least the following interfaces exist: fp_classify(), fp_class(), + class(), isnan(), isinf(), isfinite(), finite(), isnormal(), + ordered(), fp_setmask(), fp_getmask(), fp_setround(), fp_getround(), + ieeefp.h, fp_class.h. There are metaconfig units for most of these. + Search for ifdef __osf__ in pp.c to find a temporary fix that + needs to be done right. + fix the basic arithmetics (+ - * / %) to preserve IVness/UVness if + both arguments are IVs/UVs + replace pod2html with new PodtoHtml? (requires other modules from CPAN) + automate testing with large parts of CPAN + Unicode collation? http://www.unicode.org/unicode/reports/tr10/ + turn Cwd into an XS module? (Configure already probes for getcwd()) + mmap for speeding up input? (Configure already probes for the mmap family) + sendmsg, recvmsg? (Configure doesn't probe for these but the units exist) + setitimer, getitimer? (the metaconfig units exist) + +Ongoing + keep filenames 8.3 friendly, where feasible + upgrade to newer versions of all independently maintained modules + comprehensive perldelta.pod + +Documentation + describe new age patterns + update perl{guts,call,embed,xs} with additions, changes to API + convert more examples to use autovivified filehandles + document Win32 choices + spot-check all new modules for completeness + better docs for pack()/unpack() + reorg tutorials vs. reference sections |