Module:Johnuniq/dump

Documentation for this module may be created at Module:Johnuniq/dump/doc

-- Want to see exactly what is passed to a module when invoked via a template such as:
-- {{convert|1<ref>xyz</ref>|m}}
-- {{convert|1<math>xyz</math>|m}}
-- {{convert|1[[File:Help-browser.svg]]|m}}

local function dump(text, dumper)
	-- Return ASCII string with dump of bytes in text.
	return (text:gsub('[^0-9a-zA-Z .,]', dumper))
end

local function main_dump(frame)
	local function hex_dumper(s)
		return string.format('«%02x»', string.byte(s))
	end
	local function decimal_dumper(s)
		return string.format('«%d»', string.byte(s))
	end
	local args = frame:getParent().args
	local spec = {
		{ 1        , nil           , hex_dumper     },
		{ 'hex'    , nil           , hex_dumper     },
		{ 'decimal', nil           , decimal_dumper },
		{ 'nowiki' , mw.text.nowiki, hex_dumper     },
	}
	local text
	for _, t in ipairs(spec) do
		text = args[t[1]]
		if text then
			if t[2] then
				text = t[2](text)
			end
			return dump(text, t[3])
		end
	end
	return '(empty)'
end

return { dump = main_dump }