Configure updates for intsize and ssizetype

[perl5.git] / Todo

diff --git a/Todo b/Todo
old mode 100755 (executable)
new mode 100644 (file)
index d073b04..114a488
--- a/Todo
+++ b/Todo
@@ -1,68 +1,59 @@
-Must-have external packages
-       POSIX
-       X/Motif/whatever
+Tie Modules
+       VecArray                Implement array using vec()
+       SubstrArray             Implement array using substr()
+       VirtualArray            Implement array using a file
+       ShiftSplice             Defines shift et al in terms of splice method
 
-Bugs
-       BEGIN { require 'perldb.pl' }
-       Make yyparse recursion longjmp() proof.
-       perl -c shell_script bug
-       fix the need for double ^D on $x
-       STDOUT->print("howdy\n");
-       %ENV not there
-       Make "delete $array{$key} while ($key) = each %array" safe
-       using unpack(P,$ref) shouldn't unref the ref
-       binary function is missing
-       wrong line reported for runtime elsif condition error
-       unreference variable warnings busted (but don't warn on $seen{$key}++)
-
-Regexp extensions
-       /m  for multiline
-       /\Afoo/ (beginning of string, or where previous g match left off)
-       /foo\Z/ (end of string only)
-       negative regexp assertions?
-       /<>/x for grouping?
-       /f for fixed variable interpolation?
-       Rewrite regexp parser for better integrated optimization
-
-Nice to have
+Would be nice to have
        Profiler
        pack "(stuff)*"
+       Contiguous bitfields in pack/unpack
        lexperl
        Bundled perl preprocessor
-       FILEHANDLE methods
-       Make $[ compile-time instead of run-time
+       Use posix calls internally where possible
+       const variables
+       gettimeofday
+       bytecompiler
+       format BOTTOM
+       $obj->can("method") to probe method inheritance
+       -iprefix.
+       -i rename file only when successfully changed
+       All ARGV input should act like <>
+       Multiple levels of warning
+       report HANDLE [formats].
+       tie(FILEHANDLE, ...)
+       __DATA__
+       support in perlmain to rerun debugger
+       make 'r' print return value like gdb 'fini'
+       regression tests using __WARN__ and __DIE__ hooks
+
+Possible pragmas
+       debugger
+       optimize (use less memory, CPU)
 
 Optimizations
-       Make specialized allocators
-       Optimize switch statements
-       Optimize foreach on array
-       Optimize foreach (1..1000000)
+       constant function cache
+       switch structures
+       eval qw() at compile time
+       foreach (1..1000000)
+       foreach(reverse...)
        Set KEEP on constant split
        Cache eval tree (unless lexical outer scope used (mark in &compiling?))
        rcatmaybe
        Shrink opcode tables via multiple implementations selected in peep
-       Cache hash value?
+       Cache hash value?  (Not a win, according to Guido)
        Optimize away @_ where possible
        sfio?
-
-Need to think more about
-       ref in list context
-       When does split() go to @_?
-       Figure out BEGIN { ... @ARGV ... }
-       Implement eval once?  (Unnecessary with cache?)
-       Detect inconsistent linkage when using -DDEBUGGING?
-       Populate %SIG at startup if appropriate
-       Multiple levels of warning
+       "one pass" global destruction
+       Optimize sort by { $a <=> $b }
+       Rewrite regexp parser for better integrated optimization
 
 Vague possibilities
-       readonly variables
-       sub mysplice(@, $, $, ...)
+       ref function in list context
+       Populate %SIG at startup if appropriate
        data prettyprint function?  (or is it, as I suspect, a lib routine?)
-       Nested destructors
        make tr/// return histogram in list context?
        undef wantarray in void context
-       goto &replacement_routine
-       filehandle references
        Loop control on do{} et al
        Explicit switch statements
        perl to C translator
@@ -70,3 +61,8 @@ Vague possibilities
        built-in globbing
        compile to real threaded code
        structured types
+       paren counting in tokener to queue remote expectations
+       autocroak?
+       Modifiable $1 et al
+       substr EXPR,OFFSET,LENGTH,STRING
+