2 finish byte <-> utf8 and localencoding <-> utf8 conversions
3 add support for I/O disciplines
4 - a way to set default disciplines for all handle constructors:
5 use open IN => ":any", OUT => ":utf8", SYS => ":utf16"
6 eliminate need for "use utf8;"
7 autoload byte.pm when byte:: is seen by the parser
8 make \uXXXX (and \u{XXXX}?) where XXXX are hex digits
9 to work similarly to Unicode tech reports and Java
10 notation \uXXXX (and already existing \x{XXXX))?
11 more than four hexdigits? make also \U+XXXX work?
12 overloadable regex assertions? e.g. in Thai \b cannot
13 be deduced by any simple character class boundary rules,
14 word boundaries must algorithmically computed
16 see ext/Encode/Todo for notes and references about proper detection
19 SCSU? http://www.unicode.org/unicode/reports/tr6/
20 Collation? http://www.unicode.org/unicode/reports/tr10/
21 Normalization? http://www.unicode.org/unicode/reports/tr15/
22 EBCDIC? http://www.unicode.org/unicode/reports/tr16/
23 Regexes? http://www.unicode.org/unicode/reports/tr18/
24 Case Mappings? http://www.unicode.org/unicode/reports/tr21/
26 See also "Locales", "Regexen", and "Miscellaneous".
29 support "use Thread;" under useithreads
31 - create new interpreter in a different thread
32 - exchange data between interpreters/threads
33 - share namespaces between interpreters/threads
34 work out consistent semantics for exit/die in threads
35 support for externally created threads?
39 auto-produce executable
40 typed lexicals should affect B::CC::load_pad
41 workarounds to help Win32
42 END blocks need saving in compiled output
44 fix comppadlist (names in comppad_name can have fake SvCUR
45 from where newASSIGNOP steals the field)
48 CPP-space: restrict what we export from headers when !PERL_CORE
49 header-space: move into CORE/perl/?
50 API-space: complete the list of things that constitute public api
53 make configuring+building away from source directory work (VPATH et al)
54 this is related to: cross-compilation configuring (see Todo)
55 _r support (see Todo for mode detailed description)
56 POSIX 1003.1 1996 Edition support--realtime stuff:
57 POSIX semaphores, message queues, shared memory, realtime clocks,
58 timers, signals (the metaconfig units mostly already exist for these)
59 PREFERABLY AS AN EXTENSION
60 UNIX98 support: reader-writer locks, realtime/asynchronous IO
61 PREFERABLY AS AN EXTENSION
62 IPv6 support: see RFC2292, RFC2553
63 PREFERABLY AS AN EXTENSION
64 there already is Socket6 in CPAN
67 figure out where the PV->NV->PV conversion gets it wrong at least
68 in AIX and Tru64 (V5.0 and onwards) when using long doubles: see the
69 regexp tricks we had to insert to t/comp/use.t and t/lib/bigfltpm.t,
70 (?:9|8999\d+) and the like.
73 Configure probe for quad_t, uquad_t, and (argh) u_quad_t, they might
74 be in some systems the only thing working as quadtype and uquadtype.
75 more pain: long_long, u_long_long.
78 deprecate traditional/legacy locales?
79 How do locales work across packages?
80 figure out how to support Unicode locales
81 suggestion: integrate the IBM Classes for Unicode (ICU)
82 http://oss.software.ibm.com/developerworks/opensource/icu/project/
83 ICU is "portable, open-source Unicode library with:
84 charset-independent locales (with multiple locales
85 simultaneously supported in same thread; character
86 conversions; formatting/parsing for numbers, currencies,
87 date/time and messages; message catalogs (resources);
88 transliteration, collation, normalization, and text
89 boundaries (grapheme, word, line-break))".
90 Check out also the Locale Converter:
91 http://alphaworks.ibm.com/tech/localeconverter
92 There is also the iconv interface, either from XPG4 or GNU (glibc).
93 iconv is about character set conversions.
94 Either ICU or iconv would be valuable to get integrated
95 into Perl, Configure already probes for libiconv and <iconv.h>.
98 make RE engine thread-safe
99 a way to do full character set arithmetics: now one can do
100 addition, negate a whole class, and negate certain subclasses
101 (e.g. \D, [:^digit:]), but a more generic way to add/subtract/
102 intersect characters/classes, like described in the Unicode technical
103 report on Regular Expression Guidelines,
104 http://www.unicode.org/unicode/reports/tr18/
105 (amusingly, the TR notes that difference and intersection
106 can be done using "Perl-style look-ahead")
107 difference syntax? maybe [[:alpha:][^abc]] meaning
108 "all alphabetic expect a, b, and c"? or [[:alpha:]-[abc]]?
109 (maybe bad, as we explicitly disallow such 'ranges')
110 intersection syntax? maybe [[..]&[...]]?
111 POSIX [=bar=] and [.zap.] would nice too but there's no API for them
112 =bar= could be done with Unicode, though, see the Unicode TR #15 about
114 http://www.unicode.org/unicode/reports/tr15/
115 this is also a part of the Unicode 3.0:
116 http://www.unicode.org/unicode/uni2book/u2.html
117 executive summary: there are several different levels of 'equivalence'
118 trie optimization: factor out common suffixes (and prefixes?)
119 from |-alternating groups (both for exact strings and character
120 classes, use lookaheads?)
124 use fchown, fchmod (and futimes?) internally when possible
125 use fchdir(how portable?)
126 create secure reliable portable temporary file modules
127 audit the standard utilities for security problems and fix them
131 alternate runops() for signal despatch
132 figure out how to die() in delayed sighandler
133 make Thread::Signal work under useithreads
136 sort out the spawnvp() mess for system('a','b','c') compatibility
137 work out DLL versioning
140 introduce @( and @) because group names can have spaces
141 add new modules (Archive::Tar, Compress::Zlib, CPAN::FTP?)
142 sub-second sleep()? alarm()? time()? (integrate Time::HiRes?
143 Configure doesn't yet probe for usleep/nanosleep/ualarm but
145 floating point handling: nans, infinities, fp exception masks, etc.
146 At least the following interfaces exist: fp_classify(), fp_class(),
147 class(), isinf(), isfinite(), finite(), isnormal(), unordered(),
148 <ieeefp.h>, <fp_class.h> (there are metaconfig units for all these),
149 fp_setmask(), fp_getmask(), fp_setround(), fp_getround()
150 (no metaconfig units yet for these).
151 Don't forget finitel(), fp_classl(), fp_class_l(), (yes, both do,
152 unfortunately, exist), and unorderedl().
153 PREFERABLY AS AN EXTENSION.
154 As of 5.6.1 there is cpp macro Perl_isnan().
155 fix the basic arithmetics (+ - * / %) to preserve IVness/UVness if
156 both arguments are IVs/UVs: it sucks that one cannot see
157 the 'carry flag' (or equivalent) of the CPU from C,
158 C is too high-level...
159 replace pod2html with new PodtoHtml? (requires other modules from CPAN)
160 automate testing with large parts of CPAN
161 turn Cwd into an XS module? (Configure already probes for getcwd())
162 mmap for speeding up input? (Configure already probes for the mmap family)
163 sendmsg, recvmsg? (Configure doesn't probe for these but the units exist)
165 setitimer, getitimer? (the metaconfig units exist)
168 keep filenames 8.3 friendly, where feasible
169 upgrade to newer versions of all independently maintained modules
170 comprehensive perldelta.pod
173 describe new age patterns
174 update perl{guts,call,embed,xs} with additions, changes to API
175 convert more examples to use autovivified filehandles
176 document Win32 choices
177 spot-check all new modules for completeness
178 better docs for pack()/unpack()
179 reorg tutorials vs. reference sections
180 make roffitall to be dynamical about its pods and libs