I've used it with /didtok sending hashtables to dialogs and it works like a dream.
You can also do some real fancy stuff if you tokenize the result and use $*.

I like the fact that you can convert it into listing the 'entire population' of a channel:

//echo -a $regsubex($str(.,$nick(#,0)),/(.)/g,$nick(#,\n) $chr(32))

lol

lol nice ford, wonder where WoldDMT went off to... /me ponders

Nice regsubex sunslayer :)
I call that the WorldDMT trick cause that's where I learned it.
If someone doesn't understand how it works, a string of .(dots) is created based on the number of channels. So if there are 7 channels it's like this -->> .......
You use /./g to make it find all matches of the .(dot)
Each time it finds a .(dot) it will do a substitution, so you can use \n inside of $chan() - ie $chan(\n) to return each channel because \n will return the number of the current match or .(dot)
It's a sweet shortcut that can save lots of time and replace a lot of code.

while's are of course easier to learn, but regex is far more powerful than any while loop and is definitely worth learning imo

'easy' and 'simple' are relative, and personally I think a while loop is more quickly learned than regex :p

I might be wrong though, it's all relative after all.. ;_)

Nice. It sure is a lot simpler with $regsubex.

its easier to use a simple $regsubex to loop through your channels instead of using while and doesn't use any vars and takes much less code in general

alias chans return $regsubex($str(.,$chan(0)),/./g,$chan(\n) $chr(32))

For a space deliminated channel list:

alias Chans {
  var %c,%i = 1
  while $chan(%i) {
    %c = %c $v1
    inc %i
  }
  if $isid { return %c }
  else { echo -a %c }
}

For a comma deliminated channel list:

alias Chans {
  var %c,%i = 1
  while $chan(%i) {
    %c = $addtok(%c,$v1,44)
    inc %i
  }
  if $isid { return %c }
  else { echo -a %c }
}

@independentt: Your code will only return one channel. It won't return all the channels where you are. You should correct it and make it as such:

alias chans {
  var %xx = 1
  while (%xx <= $chan(0)) {
    var %yy = %yy $chan(%xx)
    inc %xx
  }
  return %yy
}

@blackvenomm666, the trigger is: //echo -a $chans

You can change

return %yy

to

echo # %yy

so that you can just use /chans to trigger the script and have all your channels echoed to you where you submit the alias.

maybe its just me but i couldnt get it to work