Re: string-as-unibyte

[Kenichi Handa <handa@m17n.org>]

In article <87wtnmg9iw.fsf-monnier+emacs@gnu.org>, Stefan Monnier <monnier@iro.umontreal.ca> writes:

>>  If a multibyte string is given to mac-code-convert-string,
>>  and the string is made mutlibyte by string-to-multibyte from
>>  the raw-byte sequence (ex. inserting a file by raw-text in a
>>  mutlibyte buffer and extracting a string by
>>  buffer-substring), using Fstring_as_unibyte is correct.

> Indeed, but sadly so.  In order to make it clear that the multibyte string
> is expected to only contain single-byte chars (including eight-bit-* chars),
> a comment is in order.

I agree.

>>  Please note that we don't have Fstring_to_unibyte because it
>>  should work the same way as Fstring_as_unibyte.

> Actually no.  string-to-unibyte should signal an error if it encounters
> a non-ascii non-eight-bit-* char.

Ah, hmmm, you are right.  I remember to implement it in
emacs-unicode.

---
Kenichi Handa
handa@m17n.org