Print Skip element

Hello all,

is there a possibility to print a single value from a skiplist without using the for loop?

e.g.

Skip sl = createString()
put(sl, "ID1", "TEST")
string sTMP = ""
Buffer buf = create

buf = "Just a "
buf+= (find(sl,"ID1",sTMP))""

print stringOf(buf)"\n"

The example only returns "true" as intended by the find function. But maybe there is another way to get the info.

Thank you & Regards

Re: Print Skip element
SudarshanRao - Fri Dec 05 04:28:12 EST 2014

sTMP will contain the value you're looking for. Return value of find is only an indication whether find was successful or not.

Re: Print Skip element
leporello - Fri Dec 05 04:55:01 EST 2014

Yes, that's true. But my question is how do i get the value from sTMP in one line out of the skip into my buffer?

Re: Print Skip element
SudarshanRao - Fri Dec 05 05:20:23 EST 2014

Ah, I missed the point then.

Maybe I'm missing it again, but is this not going to help?

if(find(s1,"ID1",sTMP))
  buf += sTMP

Re: Print Skip element
leporello - Fri Dec 05 05:46:42 EST 2014

Hm...i think i have to explain a bit more :)

I have a dxl script which have a lot of functions and in the end i create a *.csv file.

The output looks like ID#;ResultFromFunc;string "How_did_I_get_this_result"

The "how did i get the result" are my comments from the function description

Since my script is getting bigger, i excluded some functions to include files. And of course there are often some changes on the functions where i have to change the comment.

My idea is now to use a skip where i put the ID as key and the function comment as data. Filling the skip i would do directly in the functions, so i get rid of the copying the text between the files.

For creating the csv i am looking for a smart one line solution in order to keep it readable.

so something like that.

buf += "ID_1"; iResult_ID1; if((find(sl,"ID1",sTMP))) {print sTMP""}

Your solution is fine and i also had it in mind , but i have to add an extra line for every output. So I am wondering if there is a possibility to get it in one line. :)
 

Re: Print Skip element
Mathias Mamsch - Fri Dec 05 05:48:50 EST 2014

Since the Skip list can store any type, there are no perms to get the value out of a skip list for each type. Also unlike the Array, the buffer has no  _x find (...) function ... So you need to go with at least two statements (that you can put in one line), however a lot of people do something like:

string getString(Skip sk, string sKey, string sDefault) {
    string sTemp = null; 
    // return the default, if the skip does not contain the key
    if (find(sk, sKey, sTemp)) return sTemp else return sDefault
}

Buffer buf = create(); 
Skip sk = createString(); 
put (sk, "Hello", "world!");

buf += getString(sk, "world", "Hello ") // not found will return Hello
buf += getString(sk, "Hello", "Dude!") // found, will return world

print buf "" // should print Hello world!

Maybe that helps, regards, Mathias

Re: Print Skip element
leporello - Fri Dec 05 06:29:41 EST 2014

string getString(Skip sk, string sKey, string sDefault) {
    string sTemp = null; 
    // return the default, if the skip does not contain the key
    if (find(sk, sKey, sTemp)) return sTemp else return sDefault
}

Buffer buf = create(); 
Skip sk = createString(); 
put (sk, "Hello", "world!");

buf += getString(sk, "world", "Hello ") // not found will return Hello
buf += getString(sk, "Hello", "Dude!") // found, will return world

print buf "" // should print Hello world!

Ok, that's i wanted to hear. i thought there might be such a "hidden" function for skips like it exists for arrays to get data out of it.  

But your helper function will do the trick just perfect.

Thank you all!

Regards