Limit put keys of array to first level?

[trenatos]

I have a multidimensional array and need to list only the items in the first level.

Here's the overview of the array

channels[channelname][messages]

so for example channels["bobs channel"]["firstmessage\NLsecondmessage\NLetc"]
channels["lucys channel"]["firstmessage\NLsecondmessage\NLetc"]

put the keys of channels works but displays both channelnames and messages, is there a simple way of limiting this so it only spits out the channelname?

[dunbarx]

Hi.

You can always massage the data in the clear. Combine the array variable with, say, return and tab. Set the itemDel to tab, and then extract the second item in each line of the (now ordinary) new variable into a return delimited list, or whatever.

Craig Newman

[trenatos]

That doesn't seem to play nice with the multidimensional array.
I was getting a bunch of blank lines, and only one result, so I tried with a simple test and when it's a multidimensional array it doesn't work right.

I tried:

Code: Select all

   put "stuff1" into bob["bob"]
   put "stuff2" into bob["bob2"]
   combine bob with ","
   put Bob

The above works fine, but this does not:

Code: Select all

   put "stuff1" into bob["bob"]["messages"]
   put "stuff2" into bob["bob2"]["messages"]
   combine bob with ","
   put Bob

[Simon]

Funny just posted this.
http://forums.runrev.com/phpBB2/viewtop ... =7&t=19331
You would change to ["channelname"]

Simon

[trenatos]

I'm sorry, but I don't understand how that would help me.

I'm not pulling the data from a datagrid, so I can't use dgIndexes.

Assume that "bobs channel" and "lucys channel" are unknown names.

It can't be this hard to just pull all the first keys from an array, it's driving me insane. lol

All I need to figure out at this stage is how to get all the values of the first keys of channel[][]

[Simon]

Hi sorry, but you see theDataA is a multi-dimentional array
Ahh...

Code: Select all

   repeat for each key tKey in theDataA
      put theDataA[tKey]["channelname"] & cr after tNames
   end repeat

There does that help?

Simon

[trenatos]

To a point, there's a misunderstanding, it's likely due to my stupid naming-scheme.

I'm dynamically creating keys in the array based on user input basically like this;

User joins channel "bobs cooking", so a new value for the channel array is created and looks like this: put "bobs cooking" into channel["bobs cooking"]
Subsequent messages from that channel are put into the array like this: put "the message text" into channel[currentChannel]["messages"]
Where currentChannel is, well the current channel the user is chatting on.

I was under the assumption that I would easily be able to retrieve only the first keys in order to create a list of channels.

[Simon]

Hi Marcus,
Easier still

Code: Select all

on mouseUp
   put "bobs cooking" into channel["bobs cooking"]
   put "the message text" into channel["bobs cooking"]["messages"]
   put "sue cooking" into channel["sue cooking"]
   put "the message text" into channel["sue cooking"]["messages"]
   put "tom cooking" into channel["tom cooking"]
   put "the message text" into channel["tom cooking"]["messages"]

   repeat for each key tKey in channel
      put tKey & cr after tChannel
   end repeat
end mouseUp

Did I get the array right?

Simon
Edit: I see I could do without the " put "bobs cooking" into channel["bobs cooking"]" part.

[trenatos]

See? I KNEW there had to be a simple way

Thanks, Simon, if we ever meet I owe you a handful of beers by now. lol

[jacque]

put the keys of channels works but displays both channelnames and messages, is there a simple way of limiting this so it only spits out the channelname?

I'm not seeing that, the keys of a test array return only the first level. I have an array like this:

Code: Select all

PeopleArray
  Person1
    First name
    Last name
    DOB
  Person2
   First name
   Last name
   DOB

"Put the keys of peopleArray" returns:

Person1
Person2

[dunbarx]

He was trying to get deeper "levels" of an array.

Code: Select all

on mouseUp
   repeat with x=1 to 10
          repeat with y=1 to 10
            repeat with z=1 to 10
                  put random(433) into myArray[x][y][z]
            end repeat
          end repeat
     end repeat
   repeat for each key tKey in myArray
      put myArray[tKey][3][4]  & return after tResults
   end repeat
   answer tResults
end mouseUp

This lists the third nesting (the "Z"), key by key. But defined by the hard wired "3" and "4" in the first and second levels.

I think. Anyway, Simon seems to have hit a chord.

Craig

[trenatos]

Yes, I have a multidimensional array with an "unknown" first key (It's unknown by the function because I don't want to maintain a lookup-list).

The function needed to pull the name of the first key, IE. channels[thiskey][notthisone] without knowing the name of that first key.

I couldn't solve it, been trying for hours, but Simon solved it for me, he's solved a bunch of stuff for me in the past too, ergo the beer

[trenatos]

If anyone's curious of what I'm doing with it, I'm building an IRC client entirely in LiveCode.

At this point (With Simons help above) I currently have: Connecting and authenticating with server, multi-channels, shorthands for join and part, userlist and channel list.
Next up will probably be a settings tab and more short commands.

[jacque]

Glad you got it working. As far as I can see, "the keys" and Simon's method both return the same thing: the first level of the array. I probably missed something.

[Simon]

Yeah, Jacque.
That is what I'm seeing as well. Not clear why "put the keys" is not working.

Simon