string.byte: How do I make an encoder function?
I'm trying to make a function with the command bar that encodes characters into byte and then implements the backslash so I can copy it for use in a script. For example:
Encode("ab")
would print "\97\98"
I almost had when I figured out that doing
print("\\98")
would print "\98", but I implement that into the function, and it calls an error for an unfinished string. Here's the code I tried:
function Encode(str) final = [[]] sub = "" for i = 1, string.len(str) do sub = "\"..string.sub(str, i, i) final = final..sub end print(final) end
Is there a way to make a function that does what I want?
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2 answers
HexC3D has already mentioned the problem, when you were doing sub = "\"..string.sub(str, i, i) you were escaping the closing quote.
\ is special as it tells the interpreter "ignore the next character's syntax, treat it as you would treat a or b."
So when you do "\" you're saying "Start a string, and in this string you have a quotation mark. Ignore the quotation mark's syntax as there's a backslash before it."
What you want is "\" which is saying "Pretend the 2nd backslash is a normal character" and when you print out "\" you get "\". With this knowledge, we know that you want to have your string become "\\"..string.sub(str, i, i).
Your next mistake was you forgot to actually call string.byte on the character you got! Where else are you going to get the bytecode of the character from?
sub = "\\"..string.byte(string.sub(str, i, i))
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function Encode(str) final = [[]] sub = "" for i = 1, string.len(str) do sub = "\""..string.sub(str, i, i) final = final..sub end print(final) end
That should fix it, the operator suggests that the string wasn't finished so a ["] should fix it.
If this helped +1, if this answered your question check mark.
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