Generating unique symbol list does not consider symbols after `p

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1

Hi Experts,

I am trying to generate symbol list of each symbol of length 1, however it does work till 16 & considers only symbol till `p but fails when length is more than 16.

L1:-16?1; //works asc L1 //abcdefghijklmno`p

L1:-17?`1; //'length error

Same is the case with , when we try to create a symbol list of each symbol of length 2.

asc -256?2 //generate symbol list with combination till ....pp
asc -257?`2 //'length error

My question is why does it considers symbols till _ `p _ only ?

 

Thanks,

Vajindar.

 

 

 

2

The range of generate for symbols is only from  abcdefghijklmnop as documented here: https://code.kx.com/q/ref/deal/#roll-and-deal

As to why is that so, I have no idea as well. 

But you can use something like this to solve your problem:

q){[num;len] neg[num]?${.Q.a cross x}/[len-1;enlist each .Q.a]}[17;1] endgrybpjlsifkwuc q)asc{[num;len] neg[num]?${.Q.a cross x}/[len-1;enlist each .Q.a]}[256;2] s#afanaqasaxaybabdbebjbkblbnbobubwcacbcccdcfcncocq`c..

 

3

p is the 16th letter of the alphabet.  not likely a coincidence.