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6 points by jmatt 4566 days ago | link | parent

Interesting! I just had this conversation with a fellow lisp hacker yesterday. What are the alternatives to arc? Or more precisely why not choose one of these other continuations based web frameworks over arc's web framework?

CL:

UCW - http://common-lisp.net/project/ucw/features.html

hunchentoot - http://weitz.de/hunchentoot/

weblocks - http://common-lisp.net/project/cl-weblocks/

Scheme (gauche):

kahua - http://www.kahua.org/show/en

Outside the lispy box - smalltalk:

seaside - http://www.seaside.st/

A thread on an actual enterprise web based lisp system:

http://groups.google.com/group/comp.lang.lisp/browse_thread/...

On top of this consider that if you use something like sbcl you'll then be able to use slime and all that it adds when debugging. Also you'll get a number of relatively stable libraries without having to port them to arc.

http://common-lisp.net/project/slime/

You also get some nice persistence libraries such as elephant in CL. These could make life easier if you had complex objects or structures that needed more than just hashs.

http://common-lisp.net/project/elephant/

I think the number one thing plaguing SBCL is multiple threads causing problems. A friend mentioned that hashes should be threadsafe now. That is a move in the right direction. I know I've had problems with threading in SBCL in the past, but that was years ago.

I have thought about what my back up is if I run into too many problems in arc or lisp. Especially if I needed to hire people or contract work. I have my own ideas for how to address such problems, but I think it should be kept in mind when making a decision as to what framework and language to use.

There are public lispy web apps out there. I just don't have a list of them right now. Notably reddit was written in common lisp. I believe sbcl was used, but not sure. Later on it was rewritten in python. The reason is undisclosed but if I had to guess I would say issues with threads.



4 points by kens 4566 days ago | link

The reasons stated for the reddit move off Lisp are poor portability, lack of libraries, and a threading stability problem. See http://blog.reddit.com/2005/12/on-lisp.html and http://www.findinglisp.com/blog/2005/12/reddit-and-lisp-psyc...

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