Anonymous user
Playfair cipher: Difference between revisions
m
→{{header|REXX}}: converted a subroutine to in-line. -- ~~~~
m (→{{header|REXX}}: shortened a few statements. -- ~~~~) |
m (→{{header|REXX}}: converted a subroutine to in-line. -- ~~~~) |
||
Line 372:
if length(noX)\==1 then call err '"ommitted" letter must be only one letter'
if length(newK)<3 then call err 'cypher key is too short, must be > 1 character.'
if \
if pos(noX,oldX)\==0 then call err 'PHRASE can''t contain the "OMIT" character: ' noX
fill=space(translate('ABCDEFGHIJKLMNOPQRSTUVWXYZ',,noX),0) /*remove NOX*/
Line 400:
@@: parse arg Xrow,Xcol; return @.Xrow.Xcol
err: say; say '***error!***' arg(1); say; exit 13
row: ?=pos(arg(1),grid); Xpos=(?-1)//5+1; return (4+?)%5
/*──────────────────────────────────LR subroutine───────────────────────*/
Line 406 ⟶ 405:
rowL=row(L); colL=Xpos; rowR=row(R); colR=Xpos; return
/*──────────────────────────────────SCRUB subroutine────────────────────*/
scrub: procedure; arg stuff /*
$=; do j=1 for length(stuff); _=substr(stuff,j,1)
if
end /*j*/
return $
| |||