Playing with anagrams

Created by Julien Palard

is_anagram

Write a simple function, named is_anagram, taking two strings, and returning a boolean value.

The function shall return True if the letters of one word are a rearrangement of the letters of the other, False otherwise.

Superfluous (or missing) spaces, quotes, dashes, ... are allowed: funeral is an anagram of real fun.

Capitalized letter are equivalent to lower case letters: Madam Curie is an anagram of Radium came.

Diactirics of any language are ignored: crâné is an anagram of crane.