Why utf8_linux_frame_seqs?

Kalle Olavi Niemitalo <[email protected]> Wed, 16 May 2007 09:09:02 +0300

Newsgroups	gmane.comp.web.links
Message-ID	<[email protected]>

In ELinks 0.12.GIT (f8f99cc04ea0ff1f64c0452f5232e1b2567493c2):

- If UTF-8 I/O is disabled, then src/terminal/screen.c outputs
  normal characters in the terminal charset, and frame characters
  usually in a separate frame charset.  To switch between the
  charsets, it outputs strings from screen_driver.frame_seqs[].

- If UTF-8 I/O is enabled and CONFIG_UTF8 is not defined, then
  src/terminal/screen.c outputs all characters in UTF-8.  It
  converts frame characters first to some unibyte codepage that
  supports them (typically CP437), and then to UCS-4 and UTF-8.

- If UTF-8 I/O is enabled and CONFIG_UTF8 is defined, then
  src/terminal/screen.c outputs normal characters in UTF-8,
  and frame characters usually in a separate frame charset.
  To switch between the charsets, it outputs strings from
  screen_driver.frame_seqs[], which may be
  utf8_linux_frame_seqs[] defined for this purpose.

I would like to change src/terminal/screen.c so that UTF-8 I/O
always outputs frame characters in UTF-8, regardless of whether
CONFIG_UTF8 is defined.  I have already implemented this but the
change is currently entangled with fixes for bug 914 and
separating it will take some time.

However, perhaps the charset switching has some purpose I don't
understand.  It was added in "Witekfl's UTF-8 patch v5", commit
44a1aa9c87d72bd5020e68ef6e62f5a363a54b54 on 2006-02-18.  Can
anyone explain?

_______________________________________________
elinks-dev mailing list
[email protected]
http://linuxfromscratch.org/mailman/listinfo/elinks-dev

signature.asc (application/pgp-signature, 188 B)

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)

iD8DBQFGSqAPHm9IGt60eMgRAkmCAKCNSMHoQjD2MVV/GvUhohQYktZ6twCfXa8m
UGdwuUxPLg8W8lRaozcB0Bo=
=/EQT
-----END PGP SIGNATURE-----