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These non-docstring comments can be included into doxygen's brief description and then appear in the succeeding function documentation.
33 lines
756 B
Lua
33 lines
756 B
Lua
-- Text processing functions.
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local M = {}
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--- Hex encode a string.
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---
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--- @param str string String to encode
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--- @return string Hex encoded string
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function M.hexencode(str)
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local bytes = { str:byte(1, #str) }
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local enc = {} ---@type string[]
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for i = 1, #bytes do
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enc[i] = string.format('%02X', bytes[i])
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end
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return table.concat(enc)
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end
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--- Hex decode a string.
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---
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--- @param enc string String to decode
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--- @return string Decoded string
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function M.hexdecode(enc)
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assert(#enc % 2 == 0, 'string must have an even number of hex characters')
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local str = {} ---@type string[]
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for i = 1, #enc, 2 do
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local n = assert(tonumber(enc:sub(i, i + 1), 16))
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str[#str + 1] = string.char(n)
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end
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return table.concat(str)
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end
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return M
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