Module:Unicode convert
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Converts Unicode character codes, always given in hexadecimal, to their UTF-8 or UTF-16 representation in upper-case hex or decimal. Can also reverse this for UTF-8. The UTF-16 form will accept and pass through unpaired surrogates e.g. {{#invoke:Unicode convert|getUTF8|D835}}
→ D835. The reverse function fromUTF8
accepts multiple characters, and can have both input and output set to decimal.
When using from another module, you may call these functions as e.g. unicodeConvert.getUTF8{ args = {'1F345'} }
, without a proper frame
object.
To find the character code of a given symbol (in decimal), use e.g. \🐱 → 128049.
Code | Output |
---|---|
Template:Mlx | F0 9F 8D 85 |
Template:Mlx | 240 159 141 133 |
Template:Mlx | 1F345 |
Template:Mlx | 127813 |
Template:Mlx | D83C DF45 |
Template:Mlx | 55356 57157 |
See also
local p = {} -- NOTE: all these functions use frame solely for its args member. -- Modules using them may therefore call them with a fake frame table -- containing only args. p.getUTF8 = function (frame) local ch = mw.ustring.char(tonumber(frame.args[1] or '0', 16) or 0) local bytes = {mw.ustring.byte(ch, 1, -1)} local format = ({ ['10'] = '%d', dec = '%d' })[frame.args['base']] or '%02X' for i = 1, #bytes do bytes[i] = format:format(bytes[i]) end return table.concat(bytes, ' ') end p.getUTF16 = function (frame) local codepoint = tonumber(frame.args[1] or '0', 16) or 0 local format = ({ -- TODO reduce the number of options. ['10'] = '%d', dec = '%d' })[frame.args['base']] or '%04X' if codepoint <= 0xFFFF then -- NB this also returns lone surrogate characters return format:format(codepoint) elseif codepoint > 0x10FFFF then -- There are no codepoints above this return '' end codepoint = codepoint - 0x10000 bit32 = require('bit32') return (format .. ' ' .. format):format( bit32.rshift(codepoint, 10) + 0xD800, bit32.band(codepoint, 0x3FF) + 0xDC00) end p.fromUTF8 = function(frame) local basein = frame.args['basein'] == 'dec' and 10 or 16 local format = frame.args['base'] == 'dec' and '%d ' or '%02X ' local bytes = {} for byte in mw.text.gsplit(frame.args[1], '%s') do table.insert(bytes, tonumber(byte, basein)) end local chars = {mw.ustring.codepoint(string.char(unpack(bytes)), 1, -1)} return format:rep(#chars):sub(1, -2):format(unpack(chars)) end return p