X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=Todo-5.6;h=527ab82a1ca33fb8c38e1b5f988278cde8dd146f;hb=2e1d04bc4fa2d036f823d5251c731f594e0246dd;hp=fbaeaae53305e21e73ce13b2ba58b7e63ea12c00;hpb=19e16c317c7cd98771d3ab219bdd0b66d3b1d632;p=p5sagit%2Fp5-mst-13.2.git diff --git a/Todo-5.6 b/Todo-5.6 index fbaeaae..527ab82 100644 --- a/Todo-5.6 +++ b/Todo-5.6 @@ -1,6 +1,3 @@ -Bugs - fix small memory leaks on compile-time failures - Unicode support finish byte <-> utf8 and localencoding <-> utf8 conversions make substr($bytestr,0,0,$charstr) do the right conversion @@ -13,9 +10,13 @@ Unicode support - a way to set default disciplines for all handle constructors: use open IN => ":any", OUT => ":utf8", SYS => ":utf16" eliminate need for "use utf8;" - autoload utf8_heavy.pl's swash routines in swash_init() autoload byte.pm when byte:: is seen by the parser check uv_to_utf8() calls for buffer overflow + make \uXXXX (and \u{XXXX}?) where XXXX are hex digits + to work similarly to Unicode tech reports and Java + notation \uXXXX (and already existing \x{XXXX))? + more than four hexdigits? make also \U+XXXX work? + See also "Locales", "Regexen", and "Miscellaneous". Multi-threading support "use Thread;" under useithreads @@ -42,25 +43,80 @@ Namespace cleanup 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) - _r support - cross-compilation configuring - POSIX 1003.1 1996 Edition support + 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) + better shadow password support: see pp_sys.c:pp_gpwent() + 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 - locales across packages? + suggestion: integrate the IBM Classes for Unicode (ICU) + http://oss.software.ibm.com/developerworks/opensource/icu/project/ + 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))". + Check out also the Locale Converter: + http://alphaworks.ibm.com/tech/localeconverter + There is also the iconv interface, 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 . 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 TR about normalization forms) + =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' + trie optimization: factor out common suffixes (and prefixes?) + from |-alternating groups (both for exact strings and character + classes, use lookaheads?) 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 @@ -74,11 +130,27 @@ Win32 stuff Miscellaneous add new modules (Archive::Tar, Compress::Zlib, CPAN::FTP?) - sub-second sleep? (integrate Time::HiRes?) - floating point handling: nans, infinities, fp exception masks, etc + 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(), isinf(), isfinite(), finite(), isnormal(), unordered(), + , (there are metaconfig units for all these), + fp_setmask(), fp_getmask(), fp_setround(), fp_getround() + (no metaconfig units yet for these). + Don't forget finitel(), fp_classl(), fp_class_l(), (yes, both do, + unfortunately, exist), and unorderedl(). + As of 5.6.1 there is cpp macro Perl_isnan(). + 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? + 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 @@ -88,6 +160,7 @@ Ongoing 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()