Re: [Guile-commits] GNU Guile branch, master, updated. release_1-9-2-164-g0d05ae7

[ludo@gnu.org (Ludovic Courtès)]

Hi,

Mike Gran <spk121@yahoo.com> writes:

> On Wed, 2009-09-09 at 01:00 +0200, Ludovic Courtès wrote:

[...]

>> > -  return scm_getc (input_port);
>> > +  return scm_get_byte_or_eof (input_port);
>> 
>> This is actually an earlier change, but the prototype of scm_getc is now
>> different from that in 1.8.  Presumably, this means that it’s not
>> source-compatible with 1.8, e.g., on platforms where
>> sizeof (int) < sizeof (scm_t_wchar), right?

I was actually referring to the fact that 1.8 has:

  SCM_API int scm_getc (SCM port);

whereas 1.9 has:

  SCM_API scm_t_wchar scm_getc (SCM port);

What do you think?

>> > --- a/libguile/strings.h
>> > +++ b/libguile/strings.h
>> > @@ -111,7 +111,7 @@ SCM_API SCM scm_substring_shared (SCM str, SCM start, SCM end);
>> >  SCM_API SCM scm_substring_copy (SCM str, SCM start, SCM end);
>> >  SCM_API SCM scm_string_append (SCM args);
>> >  
>> > -SCM_INTERNAL SCM scm_i_from_stringn (const char *str, size_t len, 
>> > +SCM_API SCM scm_i_from_stringn (const char *str, size_t len, 
>> >                                       const char *encoding,
>> >                                       scm_t_string_failed_conversion_handler 
>> >                                       handler);
>> > @@ -157,7 +157,7 @@ SCM_INTERNAL const scm_t_wchar *scm_i_string_wide_chars (SCM str);
>> >  SCM_INTERNAL SCM scm_i_string_start_writing (SCM str);
>> >  SCM_INTERNAL void scm_i_string_stop_writing (void);
>> >  SCM_INTERNAL int scm_i_is_narrow_string (SCM str);
>> > -SCM_INTERNAL scm_t_wchar scm_i_string_ref (SCM str, size_t x);
>> > +SCM_API scm_t_wchar scm_i_string_ref (SCM str, size_t x);
>> 
>> Were these changes intended?
>
> Well, one of the two of them was intended.  :)

Shouldn’t both of them remain internal given that they have an ‘_i_’ in
their name?

>> > +  (with-locale "en_US.iso88591"
>> > +    (pass-if-exception "no args" exception:wrong-num-args
>> > +      (regexp-quote))
>> 
>> Is the locale part of the API?  That is, should programs that use
>> regexps explicitly ask for a locale with 8-bit encoding?
>
> Basically yes. The libc regex is 8-bit, and it uses
> scm_to/from_locale_string to convert regex's input and output.

That’s unfortunate but OTOH it’s the same as in 1.8, so I guess it’s OK.

> Until libunistring comes with Unicode regex, I think this is the best we
> can do.

Yes, that would be neat!

Thanks,
Ludo’.