luau-confusable

luau-confusable is a confusable character checker I ported from luau-lang/luau/Ast/src/Confusables.cpp.

Example

const confusables = require("@path/to/luau_confusable")

const input = "𝐖or𝑑"
local corrected_input = ""

for _, codepoint in utf8.codes(input) do
    local confusable = confusables(codepoint)

    if confusable then
        print(`Unicode character U+{ string.format("%X", codepoint) } (did you mean '{ confusable }'?)`)

        corrected_input ..= confusable
    else
        corrected_input ..= utf8.char(codepoint)
    end
end

print(`Hello, { corrected_input }!`) -- Hello, Word!