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Asmo
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 Posted: Sat May 07, 2005 2:02 pm?? ?Post subject: Advanced Scripting Tips - by Yochai Timmer
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Discuss the article Advanced Scripting Tips - by Yochai Timmer here.
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Last edited by Asmo on Mon Aug 08, 2005 11:23 am; edited 1 time in total
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katsklaw
Joined: 03 Nov 2004
Posts: 128
Location: irc.nfinate-irc.org
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Posted: Sat May 07, 2005 3:12 pm?? ?Post subject:
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I'd like to add to this if I may.
One tip is that you should use portable code as often as possible. Portable meaning it's reusable elsewhere. The below example is portable, I can search any file for any text, not just the file that I originally wrote it for and $listmatchs becomes a custom identifier.
| Code: |
alias listmatches {
? var %_i 1
? var %_f $1
? var %_w $2-
? while (%_i <= $lines(%_f)) {
? ? return $read(%_f,w, %_w, %_i)
? ? inc %_i
? }
}
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Second tip is the use if $iif where ever possible. This not only reduces the number of lines in your scipt but the number of characters as well, making your code as small as possible.
| Code: |
$iif(!%_var,do this,do that)
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versus
| Code: |
if (%_var == $null) {
? ? ? do this
else {
? ? ? do that
?}
}
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Both examples above do the exact same thing yet the first is much smaller.
There is literally an endless supply of tips on being a better scripter but I think 2 is enough for now 
Last edited by katsklaw on Sat May 07, 2005 5:34 pm; edited 2 times in total
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Yochai
Joined: 31 Mar 2005
Posts: 5
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Posted: Sat May 07, 2005 5:15 pm?? ?Post subject:
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I've already mentioned using the /var command (it's like using /set -l but shorter.):
| Quote: |
Use only local variables with the /var command instead of /set or just %var = value.
Remember that if the user has a full script, it might have used most of the common variable names you would like to use.
Because of this, remember to create the variable before you do a Boolean check on it, example: |
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katsklaw
Joined: 03 Nov 2004
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Posted: Sat May 07, 2005 5:31 pm?? ?Post subject:
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my apologies.
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mite
Joined: 30 Oct 2004
Posts: 107
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Posted: Sun May 08, 2005 10:26 am?? ?Post subject:
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Good tutorial for newbies. However I disagree with the following:
| Yochai wrote: |
| Don't use the | separator ! |
Would you rather
| Code: |
alias 123 {
? echo -at 1
? echo -at 2
? echo -at 3
} |
OR
| Code: |
| alias 123 { echo -at 1 | echo -at 2 | echo -at 3 } |
?
| is great for small aliases like this.
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Asmo
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Posted: Sun May 08, 2005 10:29 am?? ?Post subject:
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Its a very black & white world for some, isnt it, ... mite? :P
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mite
Joined: 30 Oct 2004
Posts: 107
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Posted: Sun May 08, 2005 10:30 am?? ?Post subject:
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Also, I like using $iif like this...
| Code: |
| on *:load:{ $iif($version != 6.16,return) } |
You don't even need the $false param 
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SebDE
Joined: 30 Oct 2004
Posts: 34
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Posted: Sun May 08, 2005 12:03 pm?? ?Post subject: Re: Advanced Scripting Tips - by Yochai Timmer
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Yeah yeah the old story about | ... I don't comment on that any further :p
Maybe I overread it, cause there isn't much new for me :rolleyes: but I don't saw any hint that variables created with var are fully local and can contain an other value than a global variable with the same name...
| Quote: |
| Code: |
| If ($4) && ($5) { } |
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Uh I wonder why is this even work at all :S
Well anyway setting braces in an if statement speed things up... & setting some around the whole statement is part of that ;)
Only a little story about to less braces... (in conjunction with var):
(It's not against var or leaving the { } for a single cmd away, it's about setting ( ) for every statement in if constructs! ;) )
| Code: |
alias /test {
? set %test global
? if ((!$2) && $1 == doh) var %test = local
? echo -a %test
? unset %test
}
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This will only work with ($1 == doh) or with { var %test = local } ;)
(I didn't reported this, so don't expect it to be gone in the next version :) )
Well I really having problems to describe the good things in my comments... It's not that isn't a nice tutorial after all ;)
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katsklaw
Joined: 03 Nov 2004
Posts: 128
Location: irc.nfinate-irc.org
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Posted: Sun May 08, 2005 4:02 pm?? ?Post subject:
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Unfortunately what one scripter thinks or believe is best is countered by at least 1 other. The tutorial says /var is better than using /set -l for local %vars. Personally I don't see any problems with set, I've used /set -l since it was added to mIRC. yes, "/var %var = blah" is 1 character shorter than "/set -l %var blah" but does that really make it better? Is it best for me to change a 10 year old habit so i can save 100 characters?
Same is true with doctors, that's why we get second opinions. Doctor X says eggs are not healthy. Doctor Y says rubbish! eggs are the healthiest thing in the world next to potatoes!. Sadly for us .. both have an armory of proof.
I think what makes a tutorial good is it's an attempt to teach someone something. Not tell you what's "better".
Remember, beauty in in the eye of the beer holder.
------------------------------------------------------------------------------------
PS: mite, you don't need a $true either ;P
| Code: |
$iif(%var,,run like hell!)
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it looks like crap and could be written differently .. but it works!
Last edited by katsklaw on Thu May 12, 2005 9:25 am; edited 1 time in total
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Fenris_Wolf
Joined: 02 Feb 2005
Posts: 6
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Posted: Thu May 12, 2005 1:54 am?? ?Post subject:
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nice tutorial.....
I disagree with not using | expecially when theres lots of lines.....sure it may make the code more confusing, but thats why I dont use the | until I'm finished with that peice of code...then I compress onto one line with |
If I ever need to edit that code again, I remove the |'s
If you have 30 aliases with 10 lines each...thats 300 lines you need to go through to find the alias you're working on. If you've used | and compressed them to one line each....you only need to look through 30 lines to find the alias (yes I'm aware there is a "find" button...but it makes it easier on the eyes)
as for the /var vs. /set commands......../var's are created locally, and run in the system's memory (assuming Khaled coded mirc properly).../set variables however, are stored in a file (remotes.ini) and each time it sets or read that variable, it needs to open the file, then find the line it's looking for, using even more resources. Rarely do I use /set....only when the information is needed to be saved....even when passing to another alias, I'd rather use a /var and pass it like so..... /alias.being.called %var....and have the %var become $$1
but hey...good work on the tutorial...expecially the section on optimizing for speed.. 
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katsklaw
Joined: 03 Nov 2004
Posts: 128
Location: irc.nfinate-irc.org
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Posted: Thu May 12, 2005 7:07 am?? ?Post subject:
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| Quote: |
as for the /var vs. /set commands......../var's are created locally, and run in the system's memory (assuming Khaled coded mirc properly).../set variables however, are stored in a file (remotes.ini) and each time it sets or read that variable, it needs to open the file, then find the line it's looking for, using even more resources.
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When you use the -l (lower case L) switch in set it makes the %var local .. just like /var. If you have a small script like mine (62k), then there isn't a notable size difference because I don't use alot of %vars.
Both the following are local %vars. The only difference is that /set -l is 1 character longer.
| Code: |
/var %var = blah
/set -l %var blah
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SebDE
Joined: 30 Oct 2004
Posts: 34
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Posted: Fri May 13, 2005 12:38 pm?? ?Post subject:
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| Fenris_Wolf wrote: |
| I disagree with not using | ... |
Please don't start this endless discussion in an IRC related forum... Wouldn't you agree that there is enough of such discussion already elsewhere? ;)
| Quote: |
| If you have 30 aliases with 10 lines each...thats 300 lines you need to go through to find the alias
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That's a joke isn't it?
| Quote: |
| (yes I'm aware there is a "find" button...but it makes it easier on the eyes) |
oh thank god
| Quote: |
| in the system's memory |
omg I hope you mean in the memory mIRC allocated... :D
| Quote: |
| (assuming Khaled coded mirc properly) |
I doubt that...
...Khaled need to code (the whole) mIRC properly for that :rolleyes:
*scnr*
| Quote: |
| /set variables however, are stored in a file (remotes.ini) and each time it sets or read that variable, it needs to open the file |
Ok enough of that sarcasm stuff, not even Khaled would do that without caching ;)
Ok maybe in 0. or 1. versions it was that way, but do you've watched the file changes of the ini where the global variables are saved? Yeah obviously not - it's updated about all 10secs or so and only if any variable has changed... ;)
| Quote: |
| then find the line it's looking for, using even more resources. |
Well despite of that global vars are usually more in count, I doubt that global variables arn't organized in any tables to easy look them up.
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Fenris_Wolf
Joined: 02 Feb 2005
Posts: 6
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Posted: Fri May 13, 2005 5:12 pm?? ?Post subject:
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SebDE:
on the global variables, your right, I did error there. (btw...the update time seems longer then 10 seconds).
and no, that wasnt a joke....I'd much rather open my scripts and beable to see all the aliases in there at a glance, without having to use the find button.
| Quote: |
Please don't start this endless discussion in an IRC related forum.
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I have no intention of starting a endless discussion ANYWHERE.
I have better things to do with my time
however, I thought the whole point of this thread was to comment on the tutorial, and things we agreed with, or disagreed with. Maybe I was wrong there too?
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Yochai
Joined: 31 Mar 2005
Posts: 5
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Posted: Fri May 13, 2005 11:49 pm?? ?Post subject: /set against /var
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ok, lets end this debate here.
What I ment was using local variables for addons instead of global vars.
Doesn't really matter if you use /var or /set -l ...
Though I think the /set -l command actually works a bit faster then /var (if we're already on the CPU saving topic.)
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SebDE
Joined: 30 Oct 2004
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Posted: Sat May 14, 2005 10:14 am?? ?Post subject:
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| Fenris_Wolf wrote: |
| (btw...the update time seems longer then 10 seconds) |
whatever, I just wanted to point out that it is cached... :)
| Quote: |
| and no, that wasnt a joke.... |
So you really have no idea why I wrote alias bold... Doesn't even made you curious? :D
Ah well maybe you don't even use the build in mIRC scrips editor... cause there you have all aliases (from the aliases tab) listed in the main menu ;)
Ok ok that's just for aliases (in the aliases tab)... I guess you do that with most of other scripts too...
| Quote: |
| I have no intention of starting a endless discussion ANYWHERE. |
kk & it's not just for you... I wanted to make my point on that discussion really clear this time: as long as there will be such possibilities in a scripting/programming language there will be scripters/programmers who do it one way and other who do it the other way... & always there will be some of one group or the other who can't stop argue about one or the other possibility :S
guess that would fit better on var vs. set -l in this thread o.0
but it's still the same old story...
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???
