Issue #3548 has been updated by Yui NARUSE.


Thank you for a patch.

> I suspect that the ISO-2022-JP encoder should also not be returning econv_destination_buffer_full when processing an empty string.
ISO-2022-JP source string may outputs escape sequence, so converter needs buffer even if source is empty.
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http://redmine.ruby-lang.org/issues/show/3548

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