Re: wxt terminal - questions

[<tim...@en...>]

> On Sunday 16 April 2006 08:35 pm, Timoth=C3=A9e Lecomte wrote:
>
>> I can implement the following :
>> - if the user has used "set encoding ..." where "..." is something
>> different from "default", the terminal converts from this encoding to
>> utf8
>> - otherwise, use the 'locale' to determine the input charset, and assu=
me
>> this is the input encoding for the conversion to utf8.
>
> Or at the least, if 'locale' reports any flavor of utf8 then do not do
> any conversion.
>
>> However, I am still not clear on one thing :
>> If you launch the demo 'charset.dem' :
>> - with the current code, the wxt terminal will show all characters as
>> iso8859-1 encoded.
>
> Correct.
>
>> - with the new code falling back to the 'locale' charset, and if your
>> locale charset is UTF-8, you won't see the last four lines [upper bit
>> set]
>>
>> At the same time, the X11 terminal will show these lines !!! So my
>> question is : what is the X11 terminal doing ??
>
> The X terminal chooses an iso-8859-1 font by default unless you tell
> it explicitly to use a multibyte font.  If you say
> 	set term x11 font "mbfont:verdana"
> then as you predict, the last four lines of charset.dem are blank.
> However, in this mode it handles utf-8 characters properly.

Ok, I understand.

I have implemented the behaviour described above : using the locale to
determine the charset. I just added one other detail : when using the
Symbol font, the terminal will assume you're using iso_8859_1, because
you'll have to use non-utf8 characters. For example, in the demo, the
integral character in \362, which is not a valid utf8 character. If the
terminal tries to read the string in utf8, it would fail here and would
not draw this character.

>
> I should add a "utf8.dem" as well.

Good idea !