str = "Órbita 9"
diacritics = Regex.compile!("[\u0300-\u036f]")
String.normalize(str, :nfd) |> String.replace(diacritics, "")
# https://stackoverflow.com/a/37511463/1878180
vyachkonovalov
1
massimo
Elixir support the Unicode flag in Regex
You can simply use
String.normalize("NäytẗkuvaèüÀÁÂÃĀĂȦÄẢÅǍȀȂĄẠḀẦẤàáâä", :nfd) |> String.replace(~r/\W/u, "")
"NayttkuvaeuAAAAAAAAAAAAAAAAAAaaaa"
this one will strip white spaces and special characters diacritical marks (accents and such) but keep numbers
2
hubertlepicki
String.normalize("Łępicki", :nfd) |> String.replace(~r/\W/u, "")
=> "Łepicki"
why this converts “ę” to “e” correctly, but not “Ł” to “L” then?
0
massimo
why this converts “ę” to “e” correctly, but not “Ł” to “L” then?
because
"Ł" |> String.normalize(:nfd) |> String.codepoints
["Ł"]
while
"ę" |> String.normalize(:nfd) |> String.codepoints
["e", "̨"]
EDIT:
it’s the same for ü and ø or ß
"ü ø ß" |> String.normalize(:nfd) |> String.codepoints
["u", "̈", " ", "ø", " ", "ß"]
:iconv correctly normalizes unicode characters, but what we’re doing here is just removing the diacritical marks
0
hubertlepicki
So… I’d still use Iconv myself if you don’t mind extension, it was created for the purpose of converting between encodings - and removing code points just a hack 
1
massimo
Yes, it’s correct.
The original poster was asking how to remove accented characters
:iconv is overkill for just that
1
hubertlepicki
jmurphyweb
By the way String.normalize is now deprecated.
:unicode.characters_to_nfd_binary("NöytẗkuvaèüÀÁÂÃĀĂȦÄẢÅǍȀȂĄẠḀẦẤàáâä")
|> String.replace(~r/\W/u, "")
# "NoyttkuvaeuAAAAAAAAAAAAAAAAAAaaaa"
3
yuchunc
kip
ex_cldr Core Team
I’m late to this party but you might find unicode_transform useful. Its a rules-based transliterator which implements currently just a few of the many CLDR transliterations. Equally it might be both too much and too little for what you need.
The transformation rules for Latin to ASCII are quite comprehensive!
@jayjun’s excellent slugify package would be my general recommendation for slugification.
Examples
iex> Unicode.Transform.LatinAscii.transform "ü ø ß"
"u o ss"
iex> Unicode.Transform.LatinAscii.transform "árboles más grandes"
"arboles mas grandes"
iex> Unicode.Transform.LatinAscii.transform "Übel wütet der Gürtelwürger"
"Ubel wutet der Gurtelwurger"
iex> Unicode.Transform.LatinAscii.transform "Ł"
"L"
4