unofficial mirror of guile-user@gnu.org 
 help / color / mirror / Atom feed
From: Mike Gran <spk121@yahoo.com>
To: Guile User <guile-user@gnu.org>
Subject: UTF-8 and new ports
Date: Thu, 14 Feb 2008 13:40:35 -0800 (PST)	[thread overview]
Message-ID: <940333.54559.qm@web37904.mail.mud.yahoo.com> (raw)

Hi-

Suppose I'm creating a new Guile port type that is
going to use NCurses primitives for input (scm_getc)
and output (display).  NCurses can both receive input
and display output of wide characters, but, these
functions operate on 32-bit wide unicode codepoints,
aka UTF32.

It seems that port types are inherently 8-bit, right? 
So to make this work, the ports will have to store and
transmit characters as UTF-8 encoded data.  The
'fill_input' function will have to convert UTF-32 to
UTF-8 and then cache them, passing them 1 byte at a
time as requested.  The 'write' function will receive
data 1 byte at a time and buffer it.  It will only
write the character when a complete UTF-32 codepoint
has been received.

Sound right?

Has anyone already done this sort of thing?

--
Mike Gran




             reply	other threads:[~2008-02-14 21:40 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-14 21:40 Mike Gran [this message]
2008-02-15  2:39 ` UTF-8 and new ports Stephen Compall
2008-02-15  8:36 ` Ludovic Courtès

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/guile/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=940333.54559.qm@web37904.mail.mud.yahoo.com \
    --to=spk121@yahoo.com \
    --cc=guile-user@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).