Developers of Sympa

[Hatuka*nezumi - IKEDA Soji <address@concealed>]

Hi sympa-dev.


Currently, there are following problems on e-mail encoding by
Sympa ---

o On some locales, specific charset & header encoding & body
  transfer-encoding are de facto standard for e-mail messages.

  --- For example on ja_JP locale, ISO-2022-JP & BASE64 & 7BIT are
  commonly used.  UTF-8 / QUOTED-PRINTABLE are very less common.

o On the other hand, various charsets are used for Web interface.

  --- For ja_JP: EUC-JP, SHIFT_JIS, UTF-8 and also ISO-2022-JP
  are used (from coding view, since ISO-2022-JP prevents
  HTML-entity escape, 8-bit schema are preferred).

o Also for other multibyte / non-Latin charsets, BASE64 (B)
  encoding scheme is preferred or often de facto.

o MIME::Words::encode_mimewords() breaks multibyte character
  boundaries in encoded headers.  cf.:
  http://rt.cpan.org/Public/Bug/Display.html?id=13027

By attached patch I tried to solve these problems.  Though this
patch can be applied to current branch, if my attempt agree to
policy of Sympa development, I'll continue working on dev branch.


Notes on attached patch ---

- On locales where e-mail messages require charset conversion,
  gettext(_charset_) should return a locale-targetted charset.
  For example for ja_JP above, this might be wanted to be EUC-JP
  (note that filesystem encoding may differ from this charset).

- Preferred encoding scheme for UTF-8 on header field is vary by
  language contexts.  Shorter one will be selected.

- Minimalism: texts not containing non-ASCII should be specified
  as US-ASCII / 7BIT.

* This patch is imcomplete.  Message bodies aren't converted using
  charset/encoding for e-mail: how may I handle message bodiess
  generated from tt2?

                                *

BTW this must be a FAQ: How should "Sympa" be pronounced, whether
"sympa(-thetic)" in English, "sympa(-thique)" en français, another
or ...everything?


-- 
Hatuka*nezumi - IKEDA Soji <address@concealed>

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