shared-text substrings, start/end indices, xs><, etc. shivers@xxxxxx (25 Jan 2000 01:02 UTC)
Re: shared-text substrings, start/end indices, xs><, etc. sperber@xxxxxx (25 Jan 2000 07:47 UTC)
shared-text substrings shivers@xxxxxx (25 Jan 2000 16:06 UTC)
Re: shared-text substrings sperber@xxxxxx (25 Jan 2000 16:54 UTC)
Re: shared-text substrings shivers@xxxxxx (25 Jan 2000 17:15 UTC)
Re: shared-text substrings sperber@xxxxxx (25 Jan 2000 17:54 UTC)
Re: shared-text substrings shivers@xxxxxx (25 Jan 2000 19:18 UTC)
Re: shared-text substrings sperber@xxxxxx (26 Jan 2000 07:30 UTC)
Re: shared-text substrings, start/end indices, xs><, etc. d96-mst-ingen-reklam@xxxxxx (28 Jan 2000 12:41 UTC)

Re: shared-text substrings, start/end indices, xs><, etc. sperber@xxxxxx 25 Jan 2000 07:47 UTC

>>>>> "Olin" == shivers  <xxxxxx@ai.mit.edu> writes:

Olin>     From: Tom Lord <xxxxxx@emf.net>
Olin>     * A reasonable alternative is to have two SRFI's: One, a
Olin>       string library without ubiquitous index parameters and
Olin>       without "substring/shared", the other, a SRFI for
Olin>       "substring/shared" in which that procedure is guaranteed to
Olin>       return a value which shares state with its primary string
Olin>       argument.

Olin> SRFI-13 is trying to walk a third path. I'm not willing to *require*
Olin> shared-text substrings. That's just not going to happen out there in
Olin> Scheme-land, at least we can't just mandate it. I'm just trying to allow
Olin> people to write portable code that can run reasonably efficiently across a
Olin> wide range of platforms -- some with shared-text substrings,
Olin> some without.

But efficiency is not the only issue here:  One might want shared-text
substrings for structural reasons.  On the other hand, *optional*
shard-text substrings make for very difficult debugging, especially if
your base implementation does not support them.  That's why I
suggested moving all this stuff out into a separate SRFI and *mandate*
it there.  SRFI 13 as it is simply conflates too many things.

--
Cheers =8-} Mike
Friede, Völkerverständigung und überhaupt blabla