Need a lua script to convert text into the utf8 encoding string

Question

I want to create a lua script which will convert text to utf8 encoded string. The problem is I am using lua version 5.2 which does not support LUAJit which are having libraries to do so. So, I need a function which will do this task for me. For example I will pass "hey this is sam this side" it should give me the utf8 encoded string like "\x68\x65\x79\x20\x74\x68\x69\x73\x20\x69\x73\x20\x73\x61\x6d\x20\x74\x68\x69\x73\x20\x73\x69\x64\x65"

The requirement is like that need to use lua only.

Just a reminder - that's not utf8 encoding, that's escaping hex values in a string literal. It has nothing to do with utf. — Vlad
– Vlad, Commented Nov 17, 2021 at 11:27

Infosunny · Accepted Answer · 2021-11-17 08:37:37Z

3

You can do it like this:

local str = "hey this is sam this side"
local answer = string.gsub(str,"(.)",function (x) return string.format("\\x%02X",string.byte(x)) end)
print(answer)

The answer is:

"\x68\x65\x79\x20\x74\x68\x69\x73\x20\x69\x73\x20\x73\x61\x6D\x20\x74\x68\x69\x73\x20\x73\x69\x64\x65"

answered Nov 17, 2021 at 8:37

Infosunny

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