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@appgurueu
Created Oct 23, 2020
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unicode.lua from adv_chat, double licensed as MIT and GPLv3
unicode_patterns={"\\u","U+"}
function parse_utf8_codepoints(message, pattern)
local last_index=0
local begin,index=string.find(message,pattern,0,true)
local rope={}
while index do
local number=""
local i=index
while i <= i+4 do
i=i+1
local char=string.upper(string.sub(message,i,i))
if char == "" or not ((char >= "0" and char <= "9") or (char >= "A" and char <= "F")) then
break
end
number=number..char
end
number=tonumber(number, 16)
if number then
local utf_8_char=modlib.text.utf8(number)
if utf_8_char then
table.insert(rope, message:sub(last_index, begin-1))
table.insert(rope, utf_8_char)
last_index=i
end
end
begin,index=string.find(message,pattern,index,true)
end
table.insert(rope, message:sub(last_index))
return table.concat(rope, "")
end
function parse_unicode(message)
for _, pattern in pairs(unicode_patterns) do
message=parse_utf8_codepoints(message, pattern)
end
return message
end
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