XOR vs. Hyper (was Re: Perl6 Operator List)
FWIW, if people are really eager to keep ^ for xor (I don't think anything's clicking great as a replacement), we could of course switch hyper to ~. That would give us, in part: ? ! + - _ # unary prefixes + - * / % ** x xx# binary +=-= *= /= %= **=x=xx= ~+~- ~* ~/ ~% ~**~x~xx# hyper ~+= ~-=~*=~/=~%=~**= ~x= ~xx= and or xor err# logical ops || ^^// # logical ops b b| b^ # binary (placeholders, for now) |^# binary or super (dunno, for now) all any one none # superpositional (+ sum,prod,cat,reduce) That would put us back to square one with string cat, but it _would_ give people back their C-like xor, which would help the familiarity issue a bit. OR, we could use ~ for string and ~~ for hyper, which I think would be OK except for the presence of an ~~~ operator for hypercat (it does sort of look like a cat going really fast, though, doesn't it?) We could also try for some bracketing constructs around hypers, or a doubled punct, or something. Thought of course about +, it looks very hyper-like, but probably still too many issues with the old-style file $stuff + - * / % ** x xx# binary +=-= *= /= %= **=x=xx= + -*/%** x xx # hyper += -= *= /= %= **= x= xx= Dunno, just feels like there should be a solution here, somewhere... a ~~+ b # not awful a + b # sigh, this is pretty nice looking a h+ b a + b a ^+^ b a `+ b a .+. b a =+= b a ~+~ b a \+\ b a [+] b a h[+] b a [+] b a + b MikeL
Re: XOR vs. Hyper (was Re: Perl6 Operator List)
Mailing-List: contact [EMAIL PROTECTED]; run by ezmlm
Date: Sat, 26 Oct 2002 23:01:31 -0700
From: Michael Lazzaro [EMAIL PROTECTED]
X-Accept-Language: en,pdf
Cc: Damian Conway [EMAIL PROTECTED],
[EMAIL PROTECTED] [EMAIL PROTECTED]
X-SMTPD: qpsmtpd/0.12-dev, http://develooper.com/code/qpsmtpd/
FWIW, if people are really eager to keep ^ for xor (I don't think
anything's clicking great as a replacement), we could of course switch
hyper to ~. That would give us, in part:
What about smart match, then? Would that go back to =~ ?
To be personally honest, my favorite (still) is:
^Hyper
\\ Xor
unary ! Not (screw parallelism: it was never there before)
~Cat
_ nada ahora
binary ! niente ora
~~ Smart match
I have no preferences for the bitops, as I don't find them remotely
useful in my work.
Modifying your table:
? ! + - _ # unary prefixes
+ - * / % ** x xx# binary
+=-= *= /= %= **=x=xx=
^+^- ^* ^/ ^% ^**^x^xx# hyper
^+= ^-=^*=^/=^%=^**= ^x= ^xx=
and or xor err# logical ops
|| \\// # logical ops
b b| b\ # No biterr??! :)
|\# No superr either...
all any one none # none? Seriously :)? Fun.
I dunno, that's just me. The only problem with \\ is will people
remember which way is which? It'd be a shame to see
$fh = open('/etc/passwd') \\ die Can't open /etc/passwd: $!
And have it always die. But honestly, that's not too much of a
problem. A mnemonic might be that \\ has negative slope, and \\
kindof negates... kindof. Well, forget that.
As for unary \, who cares? ! is fine for negation. C didn't make the
connection, so why must we?
Or we could make ! the reference op 8-P
Luke
