Tickets :: Comment on [#10054] Subject didn't encode with attachment

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Comment	> I think that it is Big-5 that use double-8it to encode one Chinese > word. Do you think that it is the reason caused this problem?? > In fact, I have thought that it might be the problem of Big-5 > charset. Therefore, i also tested for the UTF-8 charset. > Then, I found the same problem when using the UTF-8 charset. > > >> Is Big-5 one of those charsets that only contains ASCII characters, >> even though it represents an 8+bit representation? That would >> explain this behavior. See, e.g., Horde_mime::is8bit: >> >> /* ISO-2022-JP is a 7bit charset, but it is an 8bit >> representation so >> * it needs to be entirely encoded. */ >> return is_string($string) && >> ((stristr('iso-2022-jp', $charset) && >> (strstr($string, "\x1b\$B"))) \|\| >> preg_match('/[\x80-\xff]/', $string)); >
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