prosodyctl shell: Move non-error result lines back to stdout, suppress with --quiet We're figuring out how to keep usability and support machine-readability too. We moved the status line (repl-result) to stderr so that when parsing something like a table, it didn't get in the way. However sometimes the status line is the thing we want to parse (e.g. invite creation). Parsing stderr loses one of the purposes of stderr - to have an error-only channel to emit stuff out of band (such as error messages). So the new approach is: - Status line on stdout, unless it's an error - If you're parsing the output ("content") of the command, pass --quiet to suppress the status line.

local s_char = string.char;
local s_format = string.format;
local s_gsub = string.gsub;
local s_lower = string.lower;

local char_to_hex = {};
local hex_to_char = {};

do
	local char, hex;
	for i = 0,255 do
		char, hex = s_char(i), s_format("%02x", i);
		char_to_hex[char] = hex;
		hex_to_char[hex] = char;
	end
end

local function to(s)
	return (s_gsub(s, ".", char_to_hex));
end

local function from(s)
	return (s_gsub(s_lower(s), "%X*(%x%x)%X*", hex_to_char));
end

return {
	encode = to, decode = from;
	-- COMPAT w/pre-0.12:
	to = to, from = from;
};