c# Regex replace everything not in specific UTF-8 character set ranges (whitelist) -


i'm trying include non-printable characters specific latin character set: http://www.utf8-chartable.de/unicode-utf8-table.pl?utf8=0x

my regex looks this:

var output = regex.replace(input, @"[^\u0020-\u007e]|[^\u00a0-\u00ff]", string.empty);

i have problem line separator' (u2028) specifically, want exclude control character well, wanted whitelist, rather blacklist.

i'm trying include u0020 (space) through u007e (tilde) or u00a0 (no-break space) through u00ff (latin small letter y diaeresis).

i've got negation wrong on sets, can't figure out how solve it. ideas?

update

the following appears work

var input = "</span><span>
    </span><span>" var output = regex.replace(input, @"[^\u0020-\u007e\u00a0-\u00ff]", string.empty); // gives: </span><span>    </span><span>

example working: http://rextester.com/yciwtn86420


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