RosettaCodeData/Task/Thue-Morse/AppleScript/thue-morse-2.applescript

31 lines
795 B
AppleScript

on ThueMorse(sequenceLength)
if (sequenceLength < 1) then return ""
script o
property sequence : {0}
end script
set counter to 1
set cycleEnd to 1
set i to 1
repeat until (counter = sequenceLength)
set end of o's sequence to ((item i of o's sequence) + 1) mod 2
set counter to counter + 1
if (i < cycleEnd) then
set i to i + 1
else
set i to 1
set cycleEnd to counter
end if
end repeat
set astid to AppleScript's text item delimiters
set AppleScript's text item delimiters to ""
set sequence to o's sequence as text
set AppleScript's text item delimiters to astid
return sequence
end ThueMorse
return linefeed & ThueMorse(64) & (linefeed & ThueMorse(65))