For those of you demanding a reason Lua is shit,
consider the following code:
local fh = io.open(filename, "r")
while true do
line = fh:read("*l")
if line == nil then break end
f(line)
end
That is a fucking eyesore. The whole point of a while loop is to embed the exit condition in it. When you have to make an infinite loop and then use an if statement with a break to accomplish what you can normally do with something like:
> require "antigravity"
stdin:1: module 'antigravity' not found
fuck this shit, where's my xkcd reference
Name:
Anonymous2011-09-30 23:38
Not being able do something like
while(var = f(x)) {
/* WHY CAN'T LUA DO THIS? */
}
IS A HUGE PROBLEM. You can't do it in for or if statements either. It just ends up looking way more cluttered and ugly.
method to get an iterator that will return the lines in a file. So the code in the op can be written as:
local fh = io.open(filename, "r")
if fh == nil then
error("I couldn't open "..filename.." for reading bro\n")
end
for line in fh:lines() do
f(line)
end
And if you want to make a superduperawesome iterator utility library, you can make it more compact and unreadibly functionaly:
function iter_lib.foreach(iter, fn)
for value in iter do
fn(value)
end
end
function iter_lib.mask(iter, fn)
return function()
local value = iter()
if value == nil then return nil end
return fn(value)
end
end
Using the iterator does not necessarily load the entire file into memory at once. file:lines() returns a function, which you can call repeatedly, and every time you call it, it will return one line from the file. When there are no more lines to read, the function will return nil. A reasonable implementation of file:lines() would return a closure that line buffers the file.
Lua does have the extra overhead of interning the read string into a string table though, which would make the process or reading in a file a tad slower than normal.
>>12 is right, just use iterators or HOF or whatever.
However, >>1 is right but for other reasons. Something I can't stand is the general "string-oriented programming". In Lua, you have the "typeof" function that returns the type of the thing as a string. One might say it is a very minor issue, but one find that again in third party libraries, with worse consequences. For instance:
frame.fgcolor = "255 0 0"
frame.size = EIGHTHxEIGHTH
frame.title = "This is the frame"
frame.margin = "10x10"
This is taken from frame.wlua, an exemple file for the iup library. Geometries and colors are passed as strings? Unfogivable
Yeah, the typeof thing is a little clunky, but because strings are always unique, string equality can be resolved via pointer/object-id/whatever, making it just as efficient as returning an integer type id.
That is a horrendous library though. Why did they do that? So if you wanted to parameterize the foreground color, you would have to do:
frame.fgcolor = string.format("%d %d %d", r, g, b)
Something that really pisses me off is that Mike Pall put so much effort into making an extremely efficient JITC interpreter for Lua instead of a decent language.
>>21
It returns a ``map object'', which isn't a proper replacement for a lazy list, if that was the intention, as you can't even get an element from that crap without using a for-loop. Which is probably the whole principle of the thing, making GvR feel like he is sticking it those treacherous functional programmers who tricked him into putting lambda in his language.
>>25 About 12 years ago, Python aquired lambda, reduce(), filter() and map(), courtesy of (I believe) a Lisp hacker who missed them and submitted working patches. But, despite of the PR value, I think these features should be cut from Python 3000.
>>26 b = map(lambda x:f(x)+1, a)[code]
vs
[code]b = [f(x)+1 for x in a]
The only reason why the latter is shorter is because there's no shorthand for writing anonymous functions, such as -> x {f(x)+1}, or even ->{f(\x)+1}. But noooo, that's not going to happen, since Fucktard von Ransom thinks lambda is evil. Too much syntactic sugar makes your teeth rot. Ever thought about that?
I do think Guido van Rossum is a scumbag and a fool.
Name:
SFBE2011-10-01 20:24
PENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRTPENIS GOES IN ASS CRACK WHORES SHIT FACE FUCK HEADED ASS CUNT COCK SUCKING SLUTS PEEING ON THE TV WATCH A GROWN MAN SHIT ON A CACTIS WHILE EATING GRAPE FUCKING ASSWHORE SHIT ON MY TELEVISION I PEE ON BRICKS FUCKING CUNT SHIT PAKI JEW NIGGER SLUT I CAN'T FUCKING STOP SHITTING ON THE PATIO WHILE SMOKING A CAT ALARM BURGLAR BURGER LETTUCE TOMATO SITTING IN MY TOILET FERMENTED IN FRESH SHIT I CANT FUCKING BELIEVE IM NOT SPREADING BUTTER ON A WHALE'S ANUS FUCKFACE SHIT BIRD PEEING ON THE FENCE WHILE I JACK OFF IN A MOUND OF DIRT
>>29
youre amazing post, and my personal experiences have convinced me.
also >>31luaisn't a programming language contrary to popular belief it is a syntactical paradigm like html
>>35
Who would give away free ringtones? How would they earn back the money‽
Next you'll tell me they have wallpapers as well! But you're not fooling me!
>>41
People embed Python, if you're going that far you might as well embed something that doesn't add GC stutter to your UI. Or were you the only guy in this thread talking about "embedded systems"?
Name:
Anonymous2011-10-05 0:40
>>23 It returns a ``map object'', which isn't a proper replacement for a lazy list
Lazy lists dont support random access.
Name:
Anonymous2011-10-05 0:52
>>36 Who would give away free ringtones? How would they earn back the money‽
ringtone is free, while...
- it serves promotional purposes
- first day isn't over, then DRM forces you to pay
- it gives backdoor to your phone
- you watch ads
- advertising "free" will get these jews more clicks
>>47
When was the last time you REALLY needed random access into a sequence.
There are precious few instances. Some games have grids. And there's image processing.
But unless you're making checkers-Fourier-transform 2011, who gives a fuck?
Name:
Anonymous2011-10-05 1:23
>>50
I'm writing a text editor. It should support copy-pasting and undo. Of all list structures, only immutable finger tree supports that out of the box. Does Python support immutable trees with path-copying?
I bet you could do it using python's immutable tupples, giving an immutable tree with variable degree vertices. The path copying would have to be implemented yourself, and it probably wouldn't fly too well with high degree vertices.
>>> tree = (((1, 2), (3, 4)) ((5, 6), (7, 8)))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'tuple' object is not callable
>>> tree = (((1, 2), (3, 4)), ((5, 6), (7, 8)))
>>> print tree
(((1, 2), (3, 4)), ((5, 6), (7, 8)))
>>> tree2 = ((10, 11), tree)
>>> print tree2
((10, 11), (((1, 2), (3, 4)), ((5, 6), (7, 8))))
>>> def insert_left(tree, value)
File "<stdin>", line 1
def insert_left(tree, value)
^
SyntaxError: invalid syntax
>>> def insert_left(tree, value):
... if type(tree) is TupleType:
... return (tree[0], insert_left(tree[1], value))
... else:
... return (tree, value)
...
>>> print tree
(((1, 2), (3, 4)), ((5, 6), (7, 8)))
>>> print tree2
((10, 11), (((1, 2), (3, 4)), ((5, 6), (7, 8))))
>>> tree3 = insert_left(tree2, 167)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 2, in insert_left
NameError: global name 'TupleType' is not defined
>>> from types import *
>>> def insert_left(tree, value):
... if type(tree) is TupleType:
... return (tree[0], insert_left(tree[1], value))
... else:
... return (tree, value)
...
>>> tree3 = insert_left(tree2, 4643)
>>> print tree3
((10, 11), (((1, 2), (3, 4)), ((5, 6), (7, (8, 4643)))))
>>>
Name:
Anonymous2011-10-05 3:02
>>52
Well then Python sucks. And why does it place "," comas between list's elements? How can I disable that?
Name:
Anonymous2011-10-05 3:39
i remember reading some faggots code and he had for(;;) everywhere.
Name:
Anonymous2011-10-05 3:45
>>54
IDA decompiler produces a lot of while (1) code, with breaks inside of it.
>>52
Do you even know about Python's syntax, you retard?
>>53
Because it makes the output more readable, you retard.
Name:
Anonymous2011-10-05 4:22
>>56 Because it makes the output more readable, you retard.
How printing garbage makes output "more readable"?
Name:
Anonymous2011-10-05 4:29
Python requires a lot of delimiters, like ',', to offset it's ugly syntax defficiencies, else "A (-B)" can be mistaken for "A - B". If you hate such non-uniformity and want elegance - consider Lisp.
>>58 but but but but why is python not like my favourite programming language! bad bad bad python! python bad! me no like confusy! why it make me thinky! me no like thinky! me give headache bad! bad bad!
Yes, we know you have your problems with Python.
But is it asked too much to take your ``problems'' and go back to /g/, please?
Name:
Anonymous2011-10-05 13:30
>>60
making me riddle my program with commas is NOT thinking. The fact that you think it is indicates that you are a typical syntax-obsessed Python faggot.
Name:
Anonymous2011-10-05 13:49
>>60 pythonista gets butthurt when he realizes somebody doesn't like his pet language