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Re: Looping as an identifier [Re: Mpdreamz] #167238 21/12/06 07:00 PM
Joined: Apr 2004
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Mpdreamz Offline
Hoopy frood
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i started fiddling with the idea of a scripted multiline for:
Code:
alias hello { 
  for (%x = 0;%x <= 5;+) $scriptline { 
    echo -a yay
    echo -a MultiLine! :D
  }
  echo -a Such a crappy for loop implementation :P
}
alias tok return $gettok($1,$2,32) 
alias for { 
  !noop $regex($1-,/\((.+?);(.+?);(.+)\)\s(\d+)/)
  set -l $tok($regml(1),1) $tok($regml(1),3)
  var %s = $regml(4) + 1 , %crement = $replace($regml(3),+,inc,-,dec) $tok($regml(1),1) , %condition = $regsubex($regml(2),/(\w+)$/,$calc($(\1,2) -2)))
  window -h @cool
  filter -fwgnr $+(%s,-999999) $qt($script) @cool /^\s*?}\s*?$/
  var %e = $tok($line(@cool,1),1) - 1 
  window -c @cool
  tokenize 32 %condition
  while ($($1,2) $2 $($3,2)) {  
    filter -fkgr $+(%s,-,%e) $qt($script) forcommands 
    %crement
  }
}
alias forcommands $1-


Its crappy coded, no error checking. Just to prove it is sorta possible smile


$maybe
Re: Looping as an identifier [Re: Mpdreamz] #167278 21/12/06 11:44 PM
Joined: Oct 2004
Posts: 8,330
Riamus2 Offline
Hoopy frood
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Originally Posted By: Mpdreamz
Tis a lot more annoying to type out then

.
.
.

It just looks ALOT better the pure aesthetic reasons are enough for me to want it BAD.


That's a matter of opinion. I like the look of the while more than the for in your examples. It's similar to the idea that you can type a lot of commands on one line, but it is nicer looking and easier to read (imo) to have them on separate lines.


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Re: Looping as an identifier [Re: Riamus2] #167281 21/12/06 11:55 PM
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Mpdreamz Offline
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Which is fair enough, to each their own smile
I did say "the pure aesthetic reasons are enough for me to want it BAD."
It doesn't hurt implementing.

my example was completely non spaced which would be sucky
Code:
for (%x = 0, %y = 10; %x <= %y; inc %x) { 
}


I would far from class this as putting alot commands on one line (something which is backwards to do) you merely instruct the parser to start looping on one line.


$maybe
Re: Looping as an identifier [Re: Mpdreamz] #167284 22/12/06 12:04 AM
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Riamus2 Offline
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Originally Posted By: Mpdreamz
I would far from class this as putting alot commands on one line (something which is backwards to do) you merely instruct the parser to start looping on one line.


What I meant by that is that you are putting all the variables and increment/decrement on a single line. As a while, it would look similar to:

Code:
var %c = 1, %i = 10 | while (%c <= i) { inc %i
  do stuff
}


Granted, that's really ugly, but it is just an example of what I meant by putting a lot of stuff on one line rather than separating it. And it is actually not very much longer than the for line (basically just the while included makes it longer -- or the length of while mixed with including var).

That example should do what the for would do EXCEPT that it would increment before doing the commands, rather than after. Of course, you can "fix" that from being a problem by using variables that are set to 0 and 9 (1 less). Yes, that's more troublesome, but it's just to illustrate my point.

As I have said, I don't care if FOR is added. I don't personally see a need for it, but it won't hurt me any if it is added for those who prefer it to using WHILE.


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Re: Looping as an identifier [Re: Riamus2] #167518 25/12/06 04:29 PM
Joined: Jul 2006
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SartenX Offline OP
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Posts: 12
Riamus: I'm of the opinion that a for loop as a command would be nice, but very unnecessary. If you're going to be writing many lines anyway, a few more won't hurt. using a while is closer to assembly anyway. I realize that mIRC doesn't use ASM, but the logic's the same. All looping structures are identical at the logical level.

I'm just looking for an easy way to do easy things.

Mpdreamz: A local variable would work well. I was thinking like perl, where it just knows how much data is available. Or maybe I just wasn't thinking...

Merry Christmas, y'all!

Re: Looping as an identifier [Re: SartenX] #170830 15/02/07 03:04 PM
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Posts: 8
A
astigmatik Offline
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I prefer this:

Code:
foreach %nick ($nick(#, rovha)) {
  echo -a %nick
}

foreach %address ($ial(#).all) {
  echo -a %address
}

foreach %line (@window) {
  echo -a %line
}

foreach %line ($readAll(readme.txt)) {
  echo -a %line
}

foreach %ini ($ini(file.ini).headers) { }

foreach %ini_items ($ini(file.ini, header).items) { }

foreach %key, %value ($hashtable(name)) {
  echo -a %key = %value
  ; automatically extracting the $hget(name, key) and its value, python dict style
}


Originally posted at http://www.mircscripts.org/forums.php?cid=4&id=157414#157414

Re: Looping as an identifier [Re: astigmatik] #170838 15/02/07 06:15 PM
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hixxy Offline
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That doesn't match any existing mIRC syntax. I think it's a bad idea to bring in things like that. There should be a level of consistency.

Code:
foreach (%nick,$nick($chan,rovha)) {

}


The above would at least be similar to what exists already. To be honest though, I don't see the point in a foreach loop for mIRC. foreach is really something I'd only consider useful in an OOP language.

PS.
In the above example, how would mIRC know where to put to put the incrementation variable? ($nick($chan,N,rovha))
Unless you're suggesting that $nick($chan,rovha) return an array/collection, which would need to be implemented first.

Re: Looping as an identifier [Re: hixxy] #170890 16/02/07 04:06 AM
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astigmatik Offline
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Yes I'm suggesting that those identifiers would return some kind of array collection that is only accessible with the foreach loop. See the ms.org posting for updates. Something like this:

Code:
foreach ($read(file.txt, not_sure_about_second_parm)) {
  $v1 would contain the line being read
}

foreach ($nick(#, rovha)) {
  $v1 would be the nick
}

Last edited by astigmatik; 16/02/07 04:07 AM.
Re: Looping as an identifier [Re: astigmatik] #170904 16/02/07 10:44 AM
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hixxy Offline
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That makes a little more sense.

I think that would require almost every identifier to be rewritten for the foreach loop though - if so, I think there's slim chance of that happening.

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