A Collection of Code Snippets in as Many Programming Languages as Possible
This project is maintained by TheRenegadeCoder
Welcome to the Rot13 in Lua page! Here, you'll find the source code for this program as well as a description of how the program works.
local function ascii_base(s)
return s:lower() == s and ('a'):byte() or ('A'):byte()
end
function caesar_cipher(str, key)
return (str:gsub('%a', function(s)
local base = ascii_base(s)
return string.char(((s:byte() - base + key) % 26) + base)
end))
end
if (#arg < 1 or arg[1] == "")
then
print('Usage: please provide a string to encrypt')
else
io.write(caesar_cipher(arg[1], 13))
end
io.write("\n")
If you see anything you'd like to change or update, please consider contributing.
Note: The solution shown above is the current solution in the Sample Programs repository as of Oct 15 2020 19:22:39. The solution was first committed on Oct 18 2019 23:31:32. As a result, documentation below may be outdated.
No 'How to Implement the Solution' section available. Please consider contributing.
No 'How to Run the Solution' section available. Please consider contributing.