[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
ttn-pers-scheme 0.14 available
From: |
thi |
Subject: |
ttn-pers-scheme 0.14 available |
Date: |
Mon, 5 Mar 2001 12:41:13 -0800 |
ah, hash (read table and otherwise ;-)... tokable residue at:
http://www.glug.org/people/ttn/software/ttn-pers-scheme/
NEWS excerpt follows.
thi
----------------------------------------
- VERSION 0.14 (released 2001/03/05)
- Retired module: (ttn original-sin)
This was an experiment that may be revived as (ttn reflection).
A better approach (for strings, at least) is Keisuke Nishida's
embedded format module -- see (ttn eformat) immediately below.
- New module: (ttn eformat) --- Repackage Keisuke Nishida's (eformat)
This code was posted originally w/o copyright by Keisuke
Nishida:
From: address@hidden
Subject: eformat
Date: Tue, 19 Dec 2000 10:22:49 -0500
To: address@hidden, address@hidden
The following changes have been made:
(1) Module name now `(ttn eformat)'.
(2) Added `activate-eformat' and `deactivate-eformat'.
(3) Removed surrounding `let'.
(4) Procedure `embedded-format' now does not expect the first
entry to be a port, and no longer applies `format' to that
port at read-time. Instead, we return an application of a
closure that does the format, hardcoding the first arg of
`format' to #f. Thus, the result is always a string. (See
example below.)
To use, place `(activate-eformat)' and `(deactivate-eformat)'
around the code that represents a string as `#[ stuff ]'. Note
that these forms modify `read-hash-procedures' and work by
read-time side-effects, so they must be at top-level.
*WARNING WARNING WARNING*: Do not forget `deactivate-eformat'!
Example:
(activate-eformat)
(define (zz x)
#[$x is a $(lambda () (if (number? x) "" "non-"))number])
(deactivate-eformat)
(zz 42) => "42 is a number"
(zz zz) => "#<procedure zz (n)> is a non-number"
See ttn/testing/ttn/check.scm for more examples.
[NEWS excerpt ends here]
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- ttn-pers-scheme 0.14 available,
thi <=