This gets very icky, very quickly :-P My feeling is that if you don't recognize the source character set, you cannot possibly convert it to a display format in any secure manner. By default I think we should not display the content, but instead spit out a diagnostic, with the option to re-run the show (or whatever) with a command-line option that passes the content through unconverted. I'm of mixed feelings about converting unknown characters to a proxy (e.g. '?'). This could be exploited to inject terminal escape sequences into xterm (or your VT220 – I know people who still use them!). Yet another argument for declaring nmh a utf8-only zone, and convert everything to that on the way in. We could bundle our own internal iconv and just call it a day. --lyndon
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