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Re: Guile base64
From: |
Thien-Thi Nguyen |
Subject: |
Re: Guile base64 |
Date: |
Tue, 28 Sep 2010 14:48:36 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
() Andy Wingo <address@hidden>
() Mon, 06 Sep 2010 11:59:15 +0200
Perhaps we could combine interfaces -- the stream-based (I presume; I
haven't seen your code yet, but I know your Scheme code looks good)
interfaces from yours, and the map-3-to-4 stuff from Andreas' R6RS port
of my base64.scm.
I say this because the r6rs port already uses bytevectors, and compiles
down to fairly tight VM code. I haven't run benchmarks though.
Please find below a five-minute port of (ice-9 base64) to Guile 1.9.x.
To play, write it to /tmp and try something like:
$ cd /tmp
$ cat > hack <<EOF
(use-modules (ice-9 base64))
(base64-encode #t (open-input-file "/tmp/hack") 44)
(newline)
EOF
$ base64 -w 44 hack > A
$ guile -l base64.scm -s hack | diff A -
Probably the next step is to settle the interface. I am biased towards
1.4.x compatability but am open (albeit reluctantly) to breaking it.
Once the interface is settled, i'll add docs and some perfunctory tests
and repost. WRT performance -- feel free to rewrite things afterwards;
i'm not yet up to speed (har har) on this area of Guile development
enough to help more than hinder.
base64.scm
Description: Binary data
- Guile base64, Romel Sandoval, 2010/09/01
- Re: Guile base64, Ludovic Courtès, 2010/09/02
- Re: Guile base64, Andy Wingo, 2010/09/02
- Re: Guile base64, Andreas Rottmann, 2010/09/02
- Re: Guile base64, Romel Sandoval, 2010/09/03
- Re: Guile base64, Thien-Thi Nguyen, 2010/09/05
- Re: Guile base64, Ludovic Courtès, 2010/09/05
- Re: Guile base64, Thien-Thi Nguyen, 2010/09/06
- Re: Guile base64, Andy Wingo, 2010/09/06
- Re: Guile base64,
Thien-Thi Nguyen <=