X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=Todo;h=627045c9520459d2e826e09272871b62b99304fc;hb=5d5aaa5e70a8a8ab4803cdb506e2096b6e190e80;hp=d073b04ca9e0fbe52b0059bb3f079dea14572c33;hpb=ed6116ce9b9d13712ea252ee248b0400653db7f9;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/Todo b/Todo
old mode 100755
new mode 100644
index d073b04..627045c
--- a/Todo
+++ b/Todo
@@ -1,72 +1,58 @@
-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
-	Profiler
+Would be nice to have
 	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
+	gettimeofday
+	format BOTTOM
+	-iprefix.
+	-i rename file only when successfully changed
+	All ARGV input should act like <>
+	report HANDLE [formats].
+	support in perlmain to rerun debugger
+	regression tests using __DIE__ hook
+	reference to compiled regexp
+	lexically scoped functions: my sub foo { ... }
+	lvalue functions
+
+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
+	LRU cache of regexp: foreach $pat (@pats) { foo() if /$pat/ }
 
 Vague possibilities
-	readonly variables
-	sub mysplice(@, $, $, ...)
+	ref function in list context
 	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
-	multi-thread scheduling
 	built-in globbing
 	compile to real threaded code
 	structured types
+	autocroak?
+	Modifiable $1 et al
+	substr EXPR,OFFSET,LENGTH,STRING
+