# First, downgrade to ASCII chars (or transliterate if possible)
    @_ = unidecode(@_);

    for( @_ ) {
        s/['"]//gi;
        s/[^a-zA-Z0-9.-]/ /gi;
        s/\s+/_/g;
        s/_-_/-/g;
        s/^_+//g;
        s/_+$//g;
    };

##</code><code>##

        s/['"]//gi;

##</code><code>##

        tr/'"//d;

##</code><code>##

        s/[^a-zA-Z0-9.-]/ /gi;

##</code><code>##

        tr/a-zA-Z0-9.-/ /c;