Re: [q-lang-users] Two proposed improvements to Q

[John C. <co...@cc...>]

Albert Graef scripsit:

> John Cowan wrote:
> > What you've got looks good.  For strings, I had something in mind like
> > 
> >         get_string Bytes EncodingName StartIndex EndIndex
> > 
> > to decode a portion of a byte string into a string, and
> > 
> >         put_string Bytes EncodingName Index String
> 
> Should the indices be byte offsets? Also, put_string would just
> overwrite the part of the string at the given offset, right? 

Yes to both questions.

> In that
> case it should be easy to get that kind of functionality with existing
> routines, I just need to add a function to replace a slice of a byte
> string in-place.

Hmm, right.  (I should have re-read the existing docs.)  How about this?

	bytecopy FromByteString FromIndex ToByteString ToIndex Length

> > 	byte_string EncodingName String
> 
> If I understand this correctly, bytestr already provides that
> functionality. 

Yes, you're right.  As I said, I should have re-read the existing docs.

-- 
John Cowan  co...@cc...  http://ccil.org/~cowan
If I have not seen as far as others, it is because giants were standing
on my shoulders.
        --Hal Abelson