-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
- 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
- (see also "Locales", "Regexen", and "Miscellaneous")
+ 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
Configure
make configuring+building away from source directory work (VPATH et al)
- _r support
- cross-compilation configuring
+ 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)
+ PREFERABLY AS AN EXTENSION
UNIX98 support: reader-writer locks, realtime/asynchronous IO
+ PREFERABLY AS AN EXTENSION
+ IPv6 support: see RFC2292, RFC2553
+ PREFERABLY AS AN EXTENSION
+ there already is Socket6 in CPAN
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.
+ 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.
+ more pain: long_long, u_long_long.
Locales
deprecate traditional/legacy locales?
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:
+ 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
- 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).
+ 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 <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:
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
work out DLL versioning
Miscellaneous
+ introduce @( and @) because group names can have spaces
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(),
- fp_setmask(), fp_getmask(), fp_setround(), fp_getround(),
- ieeefp.h, fp_class.h. There are metaconfig units for all of these.
+ At least the following interfaces exist: fp_classify(), fp_class(),
+ class(), isinf(), isfinite(), finite(), isnormal(), unordered(),
+ <ieeefp.h>, <fp_class.h> (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().
+ PREFERABLY AS AN EXTENSION.
+ 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
+ both arguments are IVs/UVs: it sucks that one cannot see
+ the 'carry flag' (or equivalent) of the CPU from C,
+ C is too high-level...
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 units exist)
+ setitimer, getitimer? (the metaconfig units exist)
Ongoing
keep filenames 8.3 friendly, where feasible
spot-check all new modules for completeness
better docs for pack()/unpack()
reorg tutorials vs. reference sections
+ make roffitall to be dynamical about its pods and libs
+
https://perl5.git.perl.org / perl5.git / blobdiff