Re: [PATCH] Enable utf8->string to take a range

[Maxime Devos]

Vijay Marupudi schreef op do 20-01-2022 om 22:23 [-0500]:
> +@deffn {Scheme Procedure} utf8->string utf [start [end]]
>  @deffnx {Scheme Procedure} utf16->string utf [endianness]
>  @deffnx {Scheme Procedure} utf32->string utf [endianness]
>  @deffnx {C Function} scm_utf8_to_string (utf)
> +@deffnx {C Function} scm_utf8_to_string_range (utf, start, end)

It would be nice to document if it's an open, closed or half-
open/closed range.  E.g. see the documentation of 'substring':

 -- Scheme Procedure: substring str start [end]
 -- C Function: scm_substring (str, start, end)
     Return a new string formed from the characters of STR beginning
     with index START (inclusive) and ending with index END
(exclusive).
     STR must be a string, START and END must be exact integers
     satisfying:

     0 <= START <= END <= ‘(string-length STR)’.

     The returned string shares storage with STR initially, but it is
     copied as soon as one of the two strings is modified.

It seems a bit weird to support [start] and [end] for utf8->string but
not for utf16->string and utf32->string.

Greetings,
Maxime.

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