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code logs -> 2006 -> Wed, 25 Oct 2006< code.20061024.log - code.20061026.log >
--- Log opened Wed Oct 25 00:00:06 2006
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01:33
<@Vornicus>
Okay, pop quiz
01:33
<@Vornicus>
gimme a date from 7 days /before/ today.
01:33
<@Vornicus>
automatically
01:38 * Janus picks January 12th, 502, when the Danes invaded something.
01:39
<@Vornicus>
I don't think they called themselves danes back then
01:42
<@Chalain>
Vornicus: What language?
01:47
<@Vornicus>
I don't particularly care as long as I can call it from bash; has to run on Shadowfax, though
01:47
<@Vornicus>
I want to make it dump my backups from a week ago automatically.
01:47
<@Chalain>
okay, and you need the date string for that day? What format?
01:48
<@Chalain>
2006-10-23 ?
01:48
<@Vornicus>
%Y%m%d 20061023
01:48
<@Chalain>
k
01:48
<@Chalain>
un momento.
01:48
<@Vornicus>
oh, and you've got mail.
01:49
<@Vornicus>
oh, and echo 134217728 >/proc/sys/kernel/shmmax
01:49
<@McMartin>
Man, acroread sucks
01:50
<@Chalain>
Okay, go grab my perl cookbook and read up on dates. You'll want something along the lines of "perl -e 'print strftime("%Y%m%d", date()-86400*7) . "\n"'
01:51
<@Vornicus>
...oh yeah, this is what cookbooks are for.
01:51
<@Vornicus>
...meh, I'll do it in the morning, I've got quitting time to do.
01:51 * Chalain shrugs.
01:52
<@Vornicus>
(it's not like it'll change anything tonight - I deleted all my old backups but for Thursday's)
01:54
<@Vornicus>
time to head home. ni!
01:54
<@Vornicus>
or not ni, but you get the idea.
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02:45 * Vornicus-Latens returns at home.
02:46 Vornicus-Latens is now known as Vornicus
02:47 Vornicus is now known as NSGuest-594
02:50
< Janus>
Jinkies, it was an imposter all along!
02:51 NSGuest-594 is now known as Vornicus
02:52
< takyoji>
;O
02:53 * takyoji sings the Scooby Doo theme song xD
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03:35
< takyoji>
Parse error: syntax error, unexpected '}' in /home/u4/jacobl/html/form-scripts/newsletter.php on line 26
03:35
< takyoji>
the area of line 26 is:
03:36
< takyoji>
if ($p_water_feature=="Yes") {
03:36
< takyoji>
$water_feature_poll = " " . $p_fname . " does have a waterfeature."
03:36
< takyoji>
} elseif ($p_water_feature=="No") {
03:36
< takyoji>
$water_feature_poll = " " . $p_fname . " <b>doesn&quot;t</b> have a waterfeature." }
03:37
< Vornicus>
Which one is 26?
03:37
< Vornicus>
also... language?
03:37
< takyoji>
php
03:37
<@McMartin>
Are you missing a ; after waterfeature."?
03:37
< takyoji>
oh
03:37
< takyoji>
yea, that's another thing I just noticed
03:37
< Vornicus>
and, yeah, check them semicolons
03:38
< takyoji>
oh
03:38
< Vornicus>
that's okay, earlier I checked for a database named "postgers"
03:38
< takyoji>
because it usually has a different error for that
03:38
< takyoji>
ah
03:38
< takyoji>
but yea, it worked
03:40
< takyoji>
hooray, I got my big script I wrote to work
03:40
< takyoji>
I was working on a script that take form results, make it absolutely readable, and mail it
03:41 EvilDarkLord [althalas@Nightstar-17046.a80-186-184-83.elisa-laajakaista.fi] has joined #code
03:42
< takyoji>
Like if someone wrote their Name as "Caleb Langeslag" and wrote in a comment box saying "yada", I'd make it come out as "Caleb Langeslag has wrote this in the comment box: yada"
03:43
< takyoji>
although I haven't recieved the email yet of the results
03:43 * Vornicus finds it more useful, in general, to use results that a computer can read
03:44
< takyoji>
I mean, this is supposed to also be sent to my brother's computer
03:45
< takyoji>
then I also have it saved to the MySQL database
03:45
< takyoji>
but without the extra crap
03:45
<@McMartin>
Watch out for command injection attacks.
03:45
< takyoji>
just with the varibles as is
03:45
< takyoji>
which happens how?
03:46
<@McMartin>
If you do something like "INSERT INTO stuff WITH name='$NAME' and desc='$DESC'"
03:46
< takyoji>
ahh
03:46
<@McMartin>
Because they can set their $DESC to, say, "'; DROP TABLE stuff;"
03:46
<@McMartin>
And doom and suffering ensue
03:46
< takyoji>
oh
03:47
<@McMartin>
There's probably some PHP function to make such things safe, but I'm not a PHP guy so I don't know what it is.
03:47 * McMartin flees to dinner
03:48
< takyoji>
ahh
03:48
< takyoji>
crap
03:48
< takyoji>
because otherwise, I could just use a if statement to find such terms then report the person immediately as well as their IP Address
03:49
< takyoji>
otherwise I'm not really sure if that would work if the they inserted a MYSQL statement
03:50
< takyoji>
as the varible
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04:08
< takyoji>
night folks
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04:44
<@McMartin>
Hmm, he left
04:44
<@McMartin>
I was going to say, you don't get to actually just ban apostrophes.
04:44
<@McMartin>
That makes people named O'Connor very unhappy
05:14 ReivWork is now known as Reiver
05:15
<@Reiver>
McM: What about places that only allow one character for initials? That always annoyed me, 'cuz my surname initials /are/ McG.
05:16
<@McMartin>
Reiver: Well, that's not a massive security hole, though
05:16
<@Reiver>
Point.
05:17
<@Reiver>
Merely a minor annoyance for surname folks. >.>
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05:49
< Ev3>
McReiver? ^_^
05:49
<@Reiver>
Something like that. :p
05:52
< Ev3>
:p
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--- Log closed Wed Oct 25 08:18:10 2006
--- Log opened Wed Oct 25 08:18:14 2006
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12:52
<@ToxicFrog>
Vornicus-Latens: easier than Perl:
12:52
<@ToxicFrog>
date --date="7 days ago" "+%Y%m%d"
12:52
<@ToxicFrog>
Using "1 week ago" also works.
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16:19
< Vornicus-Latens>
sweet!
16:20
< Vornicus-Latens>
...though it does not appear to work on my mac
16:20
<@ToxicFrog>
...hmm.
16:20
<@ToxicFrog>
It works fine on Linux!
16:21
<@ToxicFrog>
BSD date(1) probably doesn't use GNU getdate(), though, which is the part that does that parsing.
16:21 * Vornicus-Latens shall check it out when he gets to work.
16:21
<@ToxicFrog>
It should have something similar, though; check the man/info pages.
16:22
< Vornicus-Latens>
it does not appear to
16:29
<@ToxicFrog>
...hmm.
16:29
<@ToxicFrog>
And this has to run on OSX?
16:29
< Vornicus-Latens>
no.
16:29
< Vornicus-Latens>
this will be running on linux
16:29
<@ToxicFrog>
Oh.
16:29
<@ToxicFrog>
Then it shouldn't be a problem.
16:30
< Vornicus-Latens>
indeed
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19:02
<@Vornicus>
Found in some unit test data: a person named Mojo Jojo.
19:07
<@Chalain>
Hee
19:07 * Chalain wrote him.
19:07 * Vornicus wonders what trips Mr. Jojo goes on.
19:08 You're now known as TheWatcher
19:08
<@Chalain>
Incidentally, sign #423 that you're learning too much lisp: you discover this perversity in Ruby:
19:08
<@Chalain>
f.squee
19:08
<@Chalain>
=> 42
19:08
<@Chalain>
f.send :squee
19:08
<@Chalain>
=> 42
19:08
<@Chalain>
f.send :send,:squee
19:08
<@Chalain>
=> 42
19:08
<@Chalain>
f.send :send,:send,:send,:send,:send,:send,:send,:send,:squee
19:09
<@Chalain>
=> 42
19:09
<@Chalain>
(Sign #1 that you're learning to much lisp is: You're learning ANY lisp.)
19:10
<@Vornicus>
I have, in a text file at home, some stuff in Ruby to make it do lisp interpretation
19:10
<@ToxicFrog>
I take it that send takes a function name and returns the return values from that function?
19:11
<@Vornicus>
TF: yep
19:11
<@Chalain>
ToxicFrog: Yeah. send("function_name", arg1, arg2, ...)
19:11
<@Chalain>
f.send :foo, 42 == f.foo(42)
19:11
<@ToxicFrog>
Right.
19:12 * Chalain got anonymous functions working in Lua yesterday. It made him send :squee to himself.
19:13
<@ToxicFrog>
...how do you mean "got them working"?
19:13
<@ToxicFrog>
They kind of work automatically, yes?
19:13
<@Chalain>
figured out how to do them.
19:13
<@ToxicFrog>
Aah.
19:14
<@ToxicFrog>
I thought the reference manual said how.
19:14
<@Chalain>
...
19:14
<@Chalain>
There's a reference manual?
19:14
<@Vornicus>
...pffaaaahaahaa
19:14
<@Chalain>
Keep in mind that in my universe, Lua == Plua. :-)
19:16
<@ToxicFrog>
plua? Oh, Palm lua.
19:16
<@ToxicFrog>
And yeah, there is.
19:16
<@ToxicFrog>
www.lua.org/manual/
19:17
<@ToxicFrog>
http://www.lua.org/manual/5.1/manual.html#2.5.9 <-- function definitions
19:17
<@Chalain>
Mmm. I'll go check it out.
19:18
<@ToxicFrog>
PLua probably uses a different version, though, so you should check the reference manual for that instead.
19:18
<@Chalain>
I'm hoping that with a good set of defs in Lua I can get solid OO with inheritance working WITHOUT having to call a bajillion housekeeping functions every time I want to write a new class.
19:18
<@ToxicFrog>
And not trust anything it says about the standard libraries unless plua says it includes them, etc.
19:18
<@ToxicFrog>
As long as it's lua 5.x you can do this fairly easily using metatables.
19:18
<@Chalain>
Plua 2.0b7 uses 5.1, I think. It's Lua 5 at least.
19:19
<@ToxicFrog>
Indeed, I have two different implementations of same:
19:20
<@ToxicFrog>
- Prototype-based OO. To create a new class you do SubClass = SuperClass:Copy() and then modify the copy. The line between "object" and "class" is kind of nebulous; in effect, an object is just a class that can't be copied and has had constructors invoked on it.
19:20
<@ToxicFrog>
This takes about 50 lines tops.
19:20
<@ToxicFrog>
- Classic OO. Class definitions look like:
19:20
<@ToxicFrog>
class "SubClass" extends "SuperClass"
19:20
<@ToxicFrog>
 memberVariable = 10
19:20
<@ToxicFrog>
 anotherMemberVariable = {} -- empty table filled in by ctor
19:21
<@ToxicFrog>
 function SubClass() -- ctor
19:21
<@ToxicFrog>
 -- stuff goes here
19:21
<@ToxicFrog>
 end
19:21
<@ToxicFrog>
endclass "SubClass"
19:21
<@Chalain>
Mm, not too shabby.
19:21
<@ToxicFrog>
This looks and behaves more familiarly but takes about 400 lines to implement is harder to verify.
19:22
<@ToxicFrog>
Although a lot of that 400 lines is function closure trickery so that inheritance and the "super" keyword work right inside method calls, etc.
19:22
<@Vornicus>
Arg. I have Happiness is a Warm Gun stuck in my head. Still.
19:23
<@ToxicFrog>
I prefer the former primarily because I know it has no bugs, whereas I only suspect that the latter has no bugs.
19:23
<@ToxicFrog>
However, they're both quite doable.
19:24
<@ToxicFrog>
Multiple dispatch is also doable, but kind of ugly because you need to make a function call after each function definition to register its argument types and it's just ick. I haven't finished that one yet.
19:25
<@ToxicFrog>
(with classic OO, you then declare new objects with [[obj = new "SubClass" (ctor, args, go, here)]]. Prototype-based, it's just obj = SubClass:New() or obj = SubClass:Copy() if you don't want to constructors to run.)
19:25
<@Vornicus>
Multiple dispatch is generally ick in non-static languages
19:25
<@ToxicFrog>
Yeah.
19:26
<@ToxicFrog>
It grew out of my desires for function call argument type checking, which is just as ick.
19:26 * Vornicus has a problem that's triple dispatch on three types.
19:27
<@Vornicus>
THe only saving grace is that it's commutative, and that's not much of a saving grace.
19:30 MahalZZZ is now known as Mahal
19:36
<@ToxicFrog>
Anyways! Chalain, if at any point you are interested, I can dig up the OO code and send it to you. With the caveat that the classic-OO is pretty nasty and not fully finished.
19:37
<@Chalain>
Sure, I'd love to see it.
19:37
<@Chalain>
chalain@nightstar.net
19:38
<@Chalain>
I'm not sure I like specifying a symbol with a string, but it may be the best compromise available.
19:38 * Chalain really misses #x macros from C++.
19:38
<@Chalain>
 FOREIGN KEY (location_id) REFERENCES location(id) ON UPDATE NO ACTION ON DELETE NO ACTION,
19:38
<@ToxicFrog>
Well, the issue here is that Lua doesn't have :symbols like Ruby.
19:38
<@ToxicFrog>
With prototype OO, it's SubClass = SuperClass:Copy()_
19:39
<@ToxicFrog>
With classic OO, however, I haven't actually created any new keywords; "class", "endclass" and "extends" are all functions taking a single string as arguments.
19:39
<@Chalain>
wtf?
19:39
<@ToxicFrog>
?
19:39 * Chalain wonders how he pasted sql in here.
19:39
<@ToxicFrog>
And Lua supports [[func "arg"]] as a shorthand for [[func("arg")]]
19:39
<@Chalain>
Oh. The mouse is idling over this window, and right-click in Putty is paste.
19:40
<@ToxicFrog>
Furthermore, all tables - including those used as structs and the global environment - use strings as indices.
19:40
<@Vornicus>
note to self: don't bother implementing much more than the very basic stuff in my geometry lib
19:40
<@ToxicFrog>
Internally, when you access the variable [[foo]], you are accessing [[ _G["foo"] ]]
19:41
<@Vornicus>
http://faculty.evansville.edu/ck6/encyclopedia/ETC.html <--- because there are /3,126/ known significant points on a triangle.
19:41
<@Chalain>
Yeah, the #x thing from C++ really was brilliant. You could write, say, #define print_int(x) printf("The value of %s is %d.\n", x, #x);
19:41
<@ToxicFrog>
By #x, you mean the preprocessor.
19:41
<@Chalain>
Then any time you called print_int, the #x would be expanded as the stringized variable name.
19:41
<@Chalain>
Yes.
19:41
<@ToxicFrog>
Yes, I am well familiar with it.
19:42
<@ToxicFrog>
And the many crimes comitted with it, too.
19:42
<@ToxicFrog>
Lua 4 actually had a preprocessor, but they dropped that in 5.
19:42
<@ToxicFrog>
And I really don't see how it would be useful here.
19:42
<@Vornicus>
other than, you know, the vertices and the altitudes and the midpoints and the bisection points
19:47
<@Chalain>
Crimes committed with #x? Good lord man, that was a sainted procedure if there ever was one!
19:50
<@ToxicFrog>
Have you read the IOCCC?
19:51
<@Chalain>
ToxicFrog: The main thing it would be useful for is allowing a program to identify symbols. You could say "class SubClass extends SuperClass", and could easily build the tables mData[#SuperClass] etc.
19:51
<@ToxicFrog>
......the preprocessor doesn't work like that.
19:52
<@ToxicFrog>
I mean, I suppose that if the syntax for declaring cpp macros was different so that you could declare keywords as well as functions, you could do something like:
19:52
<@Chalain>
Well, then it wouldn't work. I miss C++'s version of it for that specific reason. Lua's preprocessor probably != C++ preprocessor. *cough*. :-)
19:52
<@ToxicFrog>
I'm talking about C++'s.
19:52
<@ToxicFrog>
I have no idea how Lua's worked.
19:53
<@ToxicFrog>
#define (class <cname>) setup_class("cname")
19:53
<@Chalain>
Mm, no, you can't declare keywords with them. You can only discover their names as strings.
19:53
<@ToxicFrog>
#define (extends <scname>) setup_extention("scname")
19:53
<@ToxicFrog>
And you can't even do that because mapping CPP_MACRO -> "CPP_MACRO" does not, IIRC, work.
19:53
<@Chalain>
?
19:53
<@ToxicFrog>
You'd have to rewrite significant parts of cpp.
19:53
<@ToxicFrog>
Or, alternately, you could just do:
19:53
<@ToxicFrog>
metatable = {
19:54
<@ToxicFrog>
 __index = function(table, key)
19:54
<@Chalain>
You can call macros from other macros. You can even assemble a macro name using #x and then invoke that. It's a huge pain, but it can be done.
19:54
<@ToxicFrog>
 if type(key) == 'string' then
19:54
<@ToxicFrog>
 return key
19:54
<@ToxicFrog>
 else
19:54
<@ToxicFrog>
 return nil
19:54
<@ToxicFrog>
 end
19:54
<@ToxicFrog>
 end;
19:54
<@ToxicFrog>
}{
19:54
<@ToxicFrog>
setmetatable(_G, metatable)
19:55
<@ToxicFrog>
Bam.
19:55
<@Chalain>
What I'm after, really, is closures at the lexical level--I want to be able to write a program about *itself*. E.g., if I say class Booger, I want to be able to tell the system things about symbol Booger. :-)
19:55
<@ToxicFrog>
Now [[foo]] is equivalent to [["foo"]] as long as the variable foo is undefined.
19:55
<@Chalain>
So you could say class Booger instead of class "Booger".
19:56
<@ToxicFrog>
Of course, you still can't do [[ class Foo ]] because that's not syntactically valid; you have to write either [[ class "Foo" ]] or [[ class { Foo } ]] or [[ class(Foo) ]]
19:56
<@ToxicFrog>
I argue that if you want a language where you can rewrite the lexer and parser at runtime, use SML.
19:56
<@ToxicFrog>
Or modify the Lua lexing/parsing routines, of course.
19:56
<@ToxicFrog>
You have that option.
19:56
<@Chalain>
...or lisp. Guess what I'm learning right now. :-)
19:56
<@ToxicFrog>
And I'm still not sure where you were going with cpp.
19:58
<@Chalain>
That's probably the problem. I wasn't going anywhere. I had *arrived*, gotten out of the car, and started wandering through the park. The entire point was that if Lua had the equivalent #x, you could say "class Foo { ... }", and twist it around to yield class("Foo",body_table)
19:59
<@ToxicFrog>
#x being?
19:59
<@ToxicFrog>
As far as I know, there is _no way_ you can declare cpp macros of that format.
19:59
<@ToxicFrog>
It understands macros that look like function calls and macros that map identifiers to arbitrary strings of code and that's it.
20:00
<@ToxicFrog>
I can see how you could do the above, but it involves #defining '{' and '}', which kind of breaks everything except class definitions that don't have nested tables.
20:01
<@ToxicFrog>
Unless there is some absurdly powerful capability of cpp that I've never run across in the docs or seen used anywhere.
20:02 Chalain [~chalain@Admin.Nightstar.Net] has quit [Killed (NickServ (GHOST command used by Chalain_))]
20:02 Chalain_ [~chalain@Admin.Nightstar.Net] has joined #code
20:03
< Chalain_>
irssi hung. Whee.
20:03 Chalain_ is now known as Chalain
20:04
< Chalain>
Anyway. All the #x functionality I'm after is the ability to get a string containing the name of a symbol in the source code.
20:07
<@ToxicFrog>
<Chalain> That's probably the problem. I wasn't going anywhere. I had *arrived*, gotten out of the car, and started wandering through the park. The entire point was that if Lua had the equivalent #x, you could say "class Foo { ... }", and twist it around to yield class("Foo",body_table)
20:07
<@ToxicFrog>
<ToxicFrog> #x being?
20:07
<@ToxicFrog>
<ToxicFrog> As far as I know, there is _no way_ you can declare cpp macros of that format.
20:07
<@ToxicFrog>
<ToxicFrog> It understands macros that look like function calls and macros that map identifiers to arbitrary strings of code and that's it.
20:07
<@ToxicFrog>
<ToxicFrog> I can see how you could do the above, but it involves #defining '{' and '}', which kind of breaks everything except class definitions that don't have nested tables.
20:07
<@ToxicFrog>
<ToxicFrog> Unless there is some absurdly powerful capability of cpp that I've never run across in the docs or seen used anywhere.
20:07
<@ToxicFrog>
And, yes, you can do that with the metatable trick I posted above.
20:07
<@ToxicFrog>
The point is, this still doesn't get you what you're after, because you also want to modify the parser so that [[ function-name symbol ]] is valid code.
20:08
<@ToxicFrog>
At present, the only things it accepts for function calls are [[ function-name string ]], [[ function-name table-declaration ]], and [[ function-name '(' argument-list ')' ]]
20:10
<@ToxicFrog>
And, as stated earlier, in order to do this with Lua you'll need to modify lparser.c and rebuild.
20:24 aspodf [~aspodf@Nightstar-10591.75-201-24.mc.videotron.ca] has joined #Code
20:25
< aspodf>
need these gone now 2 dell xps m1710 laptops price 500 each. shipping anywhere worldwide included in price. message m s n at themikestereh at hot mail dot com or aim at polter1981
20:25
< aspodf>
need these gone now 2 dell xps m1710 laptops price 500 each. shipping anywhere worldwide included in price. message m s n at themikestereh at hot mail dot com or aim at polter1981
20:27 aspodf [~aspodf@Nightstar-10591.75-201-24.mc.videotron.ca] has quit [User has been banned]
20:29 * Vornicus yays for akill
20:30 * ToxicFrog blows smoke from the muzzle of his TCP socket
20:48
< Ev3>
Your socks smokes?
20:48
< Ev3>
Damn.. I thought mine was unruly.
21:18 Janus [~Cerulean@Nightstar-10302.columbus.res.rr.com] has joined #Code
21:35 ThaquiSleep is now known as Thaqui
21:56 You're now known as TheWatcher[afk]
22:21 Chalcy is now known as Chalcedon
22:24 Janus [~Cerulean@Nightstar-10302.columbus.res.rr.com] has quit [Quit: Jouets de Dieu, jouets de jouets, et les jouets de me, fait naître Clairvoire.]
22:27 You're now known as TheWatcher
23:07 You're now known as TheWatcher[T-2]
23:10 You're now known as TheWatcher[zZzZ]
23:15 McMartin [~mcmartin@Nightstar-8843.dsl.pltn13.pacbell.net] has joined #code
23:15 mode/#code [+o McMartin] by ChanServ
23:15
<@McMartin>
... Fedora Core 6's codename is Zod. That is all.
23:18
<@ToxicFrog>
Still not going to install it!
23:18 * McMartin torrents it down, just because
23:52 Thaqui [~Thaqui@Nightstar-8486.adsl.xtra.co.nz] has quit [Client exited]
23:53 * Chalain kneels before Fedora Core 6.
23:54
< Chalain>
Dude, it was his ONLY line. The least we could do is humor him.
23:54
<@ToxicFrog>
Who is Zod?
23:55
<@Vornicus>
Yeah - I don't know where Zod is from anyway.
23:55
< Chalain>
One of the villians from Superman II.
23:55
<@Vornicus>
All I know is that for a one-line character, he gets a crapton of airplay.
23:55
< Chalain>
Pretty much his only line was "KNEEL BEFORE ZOD!"
23:55
<@ToxicFrog>
Aah. That Zod.
23:55 * Vornicus hasn't actually seen Superman II.
23:55
<@ToxicFrog>
Vornicus: I believe he also appears in several thousand different incarnations in the comic books.
23:55
< Chalain>
It was a pretty dang good line. A one-line villain could do a lot worse.
23:56
<@ToxicFrog>
But you should confirm that with someone who has first hand knowledge.
23:56
<@ToxicFrog>
And now, food.
23:56
<@Vornicus>
Chalain: agreed. That poor dude from Nightmare At Noon.
23:57
<@Vornicus>
Do they ever figure out /why/ he did it, anyway?
23:59
<@Vornicus>
Or was it just "oh look I'm evil"
--- Log closed Thu Oct 26 00:00:06 2006
code logs -> 2006 -> Wed, 25 Oct 2006< code.20061024.log - code.20061026.log >
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