Re: Issues: Character 160 - Non-breaking space + Additional Issue with UTF-8

[Javier Guerra Giraldez <javier@...>]

On 10 July 2018 at 15:00, Dirk Laurie <dirk.laurie@gmail.com> wrote:
> utf8.find ("Hélène",'n')  --> 5 5
> utf8.sub ("Hélène",5)   --> 'ne'
> utf8.gsub ("Hélène","[éè]","e")  --> 'Helene' 2
> utf8.reverse ("Hélène")   --> 'enèléH'


fully untested:

function utf8.find(s, ...)
    local a, b = s:find(...)
    return utf8.len(s, 1, a), utf8.len(s, 1, b)
end

function utf8.sub(s, a, b)
    return s:sub(utf8.offset(s, a), utf8.offset(s, b))
end

function utf8.reverse(s)
    local l, t = utf8.len(s), {}
    for p, c in utf8.codes(s) do
        t[l] = c
        l = l -1
    end
    return utf8.char(table.unpack(t))
end


-- 
Javier