Re: UTF-8 input [was Re: PATCH: zle_params.c]

[Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>]

On Feb 10,  2:22pm, Peter Stephenson wrote:
} Subject: Re: UTF-8 input [was Re: PATCH: zle_params.c]
}
} I think $KEYS is OK.  The current intention is for the input to key
} bindings to remain multibyte strings (metafied where necessary).
} Modifying BUFFER and other parameters converts from multibyte strings to
} wide characters automatically; I've already written that bit (because it
} was easy).  So if you feed back KEYS into the system from a function it
} will pass through the mbtowc stuff at the appropriate level.


So if, for example, I do

	BUFFER="$LBUFFER$KEYS$RBUFFER"

this is going to convert LBUFFER and RBUFFER from wide chars to metafied
on expansion, and then convert the whole quoted string back to wide chars
upon assignment?  Or am I missing something crucial, e.g. that BUFFER and
its L/R components are stored as raw bytes?
 
} I suspect we will want a flag such as ${(m)#KEYS} to treat the string
} as a multibyte character string instead of raw bytes and maybe a
} ${(M)#KEYS} not to.

(M) is already taken, as are (w) and (W).

I presume you mean (m) to be like (c) in that it works only with ${#...}.
Otherwise I'm even more confused.

} [...] argue for it to handle multibyte strings by default in a suitable
} locale, but when Perl did that it broke everything in sight.

I'm not arguing for that ... if anything, I'm arguing against it.