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-- http://lua-users.org/wiki/CopyTable
-- Deepcopy of table
function deepcopy(orig)
local orig_type = type(orig)
local copy
if orig_type == 'table' then
copy = {}
for orig_key, orig_value in next, orig, nil do
copy[deepcopy(orig_key)] = deepcopy(orig_value)
end
setmetatable(copy, deepcopy(getmetatable(orig)))
else -- number, string, boolean, etc
copy = orig
end
return copy
end
-- turn word to table and then swap it
function Swap(Table, Pos1, Pos2)
-- deep copy of table and then return it
local new_tab = deepcopy(Table)
new_tab[Pos1], new_tab[Pos2] = new_tab[Pos2], new_tab[Pos1]
return new_tab
end
local word = {}
local inp = "feed"
local buddy = "feed"
for i= 1,#inp do
table.insert(word,string.sub(inp,i,i))
end
local isbuddy = false
for j= 1,#word-1 do
local newword = (table.concat(Swap(word,j,j+1)))
-- print (newword)
if newword == buddy then
print ("buddy: ", newword)
print("true")
isbuddy = true
break
end
end
if (not isbuddy) then
print("false")
end
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