int_rel

int_rel{i:int, base:int, r{seq:int, ss:str}}

A relation generator. Can convert integer i into digits (ss) and vice-versa.

If base is provided it is used to select the kind of digits otherwise base 2 (bits) is used.

{seq:int} is used to sequence the digits from most significant on the left (largest seq) to least on the right (smallest seq).

Examples

split into bits

int_rel(i:=42)

base
r

2
seq
ss
0
0
1
1
2
0
3
1
4
0
5
1

split into base 16 hexits

int_rel(i:=42, base:=16)

r

seq
ss
0
a
1
2

split into base 16 hexits and join into a hexadecimal number

print(str_rel(r:=int_rel(i:=42, base:=16)..r{*, seq:=-seq})..s)

2a

Note: str_rel builds left to right, from smallest seq to largest, so we need to invert the seq provided by int_rel using seq:=-seq.

bulk apply via composition to get hexadecimal STATUS

$S{*, i:=STATUS, STATUS:=STATUS, base:=16}(int_rel){*, r:=r{*, seq:=-seq}}(str_rel)~{sep}

STATUS
SNO
SNAME
CITY
s

10
S2
Jones
Paris
a
20
S1
Smith
London
14
20
S4
Clark
London
14
30
S3
Blake
Paris
1e
30
S5
Adams
Athens
1e

join base 10 digits

int_rel(r:={seq:int, ss:str}{[0,"2"], [1,"4"]}, base:=10)

i

42