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#500

From: bangalore-lisp@yahoogroups.com
Date: Thu Jul 16, 2009 10:52 am
Subject: New file uploaded to bangalore-lisp

bangalore-lisp@yahoogroups.com

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the bangalore-lisp
group.

   File        : /Continuations versus page-centric programming.pdf
   Uploaded by : tomelam <tomelam@...>
   Description : Classic article on web continuations

You can access this file at the URL:
http://groups.yahoo.com/group/bangalore-lisp/files/Continuations%20versus%20page\
-centric%20programming.pdf

To learn more about file sharing for your group, please visit:
http://help.yahoo.com/l/us/yahoo/groups/original/general.htmlfiles

Regards,

tomelam <tomelam@...>

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#499

From: Thomas Elam <tomelam@...>
Date: Thu Jul 16, 2009 10:43 am
Subject: Re: Re: Needed: workaround for lack of persistent processes in a web application framework

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Gautham,

No, I don't expect to use a lot of CPU cycles on the web host.� One thing I am trying to do is create an ultra-portable (between web hosts) and lightweight framework that will leverage my mostly-browser-based tool as much as possible.� Another thing I am trying to do is make my websites as light on my bank balance as possible, so that only the domain name registrations (for several or many websites) are the main cost, until my websites get used a lot.� Another thing I am trying to do is keep my expenses for my websites just to what I actually use. This last thing is what I like about my current web host, nearlyfreespeech.net. The web hosting service you mentioned, jvds.com, looks expensive at a minimum of $32/month. Did I miss something?

If I can have some kind of simulated web continuations, I'll be very happy. Here is a really great article, very well and clearly written, that explains web continuations, by Lisper Christian Queinnec, and why they are highly useful: http://en.scientificcommons.org/42793631. Its title is 'Inverting back the inversion of control or,� Continuations versus page-centric programming'. It's rather a classic article, often referred to. I will try to upload it to the files repository in this group. I was a bit confused by the phrase 'What to do next' that the article uses, but I figured out that a way to think of this is 'everything going on in the program at a point in time that decides how the program is going to act next' -- in other words, 'the state of the program'.

Web continuations are great! I can speak from personal experience, having programmed web applications in an ad hoc way (without any real framework, though) and with web continuations. Web continuations allow an application to be programmed as if everything happened without waiting for the user -- linearly. (Since the HTTP protocol is stateless, user input can't be waited upon by issuing a call to a function like an OS wait() function.) I used server-side web continuations provided by the Lisp-based web framework UCW (the Ajaxian branch of it), but found that continuations can get out of hand due to the amount of memory they use on the backend. I hope to solve part of the problem by using client-side continuations, perhaps extensively. This will have the lovely side effect of allowing my application to scale much better than if I didn't use the client-side continuations.

(Lisp-knowledgable people unfamiliar with UCW might wonder how Lisp can support continuations. The answer: by using code walking. Only a subset of Lisp can be used in the continuations, but functions called by those continuations can still use full Lisp. Scheme, by the way, supports continuations natively.)

But still, for things like web sessions and personalised logins, I would like to have something better than hand-coded, ad hoc state management. And I want to do it without persistent processes on the backend, which are expensive. Maybe I can at least simulate this by storing the important variables in a database BLOB. (Probably the Lisp and Scheme frameworks have an elegant way to do this as part of session support.) Anyway, that's almost exactly what is done at the lowest level for any web application. Maybe this was so distateful to me when I did it before with Python because of particular problems of that language. (I'd be willing to discuss those problems with Pythonistas at a meeting of bangalore-fp group, in an informal way, during a break or before/after the meeting.) I think those problems would not be relevant in a Lisp or Scheme based web app.

Question for anyone: how does Ruby on Rails solve this problem of persistence of state across and between HTTP requests?

Tom

On Wed, Jul 15, 2009 at 5:25 PM, Gautham Ganapathy <gautham@...> wrote:

> a cause for concern to me. Here is an excerpt: 'Web
> application frameworks that depend on persistent processes, including: Ruby
> On Rails, Django, Zope, and others (some of these will run under CGI, but
> will run slowly and are suitable only for development purposes) [don't
> work]'. Does anyone here have any ideas for a work-around for this

Do you expect a lot of CPU bandwidth usage in your app? Perhaps a VPS where you have better control over what you run could be an option. I use JVDS (www.jvds.com).

Regards
Gautham

--
I must create a system, or be enslaved by another man's.
-William Blake

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#498

From: "Gautham Ganapathy" <gautham@...>
Date: Wed Jul 15, 2009 11:55 am
Subject: Re: Needed: workaround for lack of persistent processes in a web application framework

gauthamg123

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> a cause for concern to me. Here is an excerpt: 'Web
> application frameworks that depend on persistent processes, including: Ruby
> On Rails, Django, Zope, and others (some of these will run under CGI, but
> will run slowly and are suitable only for development purposes) [don't
> work]'. Does anyone here have any ideas for a work-around for this

Do you expect a lot of CPU bandwidth usage in your app? Perhaps a VPS where you have better control over what you run could be an option. I use JVDS (www.jvds.com).

Regards
Gautham

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#494

From: Thomas Elam <tomelam@...>
Date: Mon Jun 8, 2009 9:41 am
Subject: Needed: workaround for lack of persistent processes in a web application framework

tomelam

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I hope no one minds that I cross-posted this. It seems relevant to both groups.

I have created the website www.tomelam.com to showcase (eventually) my Scheme-based client-centred technology I have called Dojo Zen aka Ajax Zen aka Web3D, which I am currently completely rewriting.

www.tomelam.com is hosted on�www.nearlyfreespeech.net/�where the things that don't work are a cause for concern to me. Here is an excerpt: 'Web application frameworks that depend on persistent processes, including: Ruby On Rails, Django, Zope, and others (some of these will run under CGI, but will run slowly and are suitable only for development purposes) [don't work]'.�Does anyone here have any ideas for a work-around for this limitation in a Lisp or Scheme (or Ruby or Python or PHP) framework?

I believe this link has the most technical information about Paul Graham's solution to the problem. It is quite interesting reading.

I think that if I use Lisp or Scheme on the backend, I might want to use a save-core-and-die (or save-lisp-and-die) strategy to make it quick to start up a Lisp (or Scheme) image quickly.

Any help, ideas or relevant questions would be much appreciated.

Regards to all,

Tom

--
I must create a system, or be enslaved by another man's.
-William Blake

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#493

From: abhi <abhijithg@...>
Date: Tue Mar 24, 2009 11:03 am
Subject: Re: Lisp library

abhijith_foo

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checkout the following links
http://www.cliki.net/ASDF-Install
http://mudballs.com/

On Tue, Mar 24, 2009 at 12:30 PM, Goutham D L <dl.goutham@...> wrote:
> Hi,
> Iam using Common lisp.
>
> On Tue, Mar 24, 2009 at 10:50 AM, abhi <abhijithg@...> wrote:
>> Goutam,
>> First of all which lisp are you using? scheme or common lisp? If you
>> are using common lisp, you can take a look at 'asdf' or mudballs.
>> Mudballs is new and has a much easier interface for downloading and
>> looking for packages. On the other hand, asdf supports a lot of
>> libraries.
>> As far as scheme is concerned I think there are people on the group
>> who are much more qualified than me to answer the question.
>>
>> On Tue, Mar 24, 2009 at 4:09 AM, Goutham D L <dl.goutham@...> wrote:
>>> Hi,
>>> This might seem to be a trivial matter for most of you but I was
>>> wondering how do I add new libraries that I download?
>>> In python, its a simple matter of just copy pasting it to a folder.
>>>
>>> Goutham
>>>
>>>
>>
>> --
>> Queer little twists and quirks go into the making of an individual.
>> To suppress them all and follow clock and calendar and creed until the
>> individual is lost in the neutral gray of the host is to be less than
>> true to our inheritance.
>> Life, that gorgeous quality of life, is not accomplished by following
>> another man's rules.
>> It is true we have the same hungers and same thirsts, but they are for
>> different things and in different ways and in different seasons.
>> Lay down your own day, follow it to its noon, or you will sit in an
>> outer hall listening to the chimes but never reaching high enough to
>> strike your own.
>>
>



--
Queer little twists and quirks go into the making of an individual.
To suppress them all and follow clock and calendar and creed until the
individual is lost in the neutral gray of the host is to be less than
true to our inheritance.
Life, that gorgeous quality of life, is not accomplished by following
another man's rules.
It is true we have the same hungers and same thirsts, but they are for
different things and in different ways and in different seasons.
Lay down your own day, follow it to its noon, or you will sit in an
outer hall listening to the chimes but never reaching high enough to
strike your own.

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#492

From: Goutham D L <dl.goutham@...>
Date: Tue Mar 24, 2009 7:00 am
Subject: Re: Lisp library

gouthamdl

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Hi,
Iam using Common lisp.

On Tue, Mar 24, 2009 at 10:50 AM, abhi <abhijithg@...> wrote:
> Goutam,
> First of all which lisp are you using? scheme or common lisp? If you
> are using common lisp, you can take a look at 'asdf' or mudballs.
> Mudballs is new and has a much easier interface for downloading and
> looking for packages. On the other hand, asdf supports a lot of
> libraries.
> As far as scheme is concerned I think there are people on the group
> who are much more qualified than me to answer the question.
>
> On Tue, Mar 24, 2009 at 4:09 AM, Goutham D L <dl.goutham@...> wrote:
>> Hi,
>> This might seem to be a trivial matter for most of you but I was
>> wondering how do I add new libraries that I download?
>> In python, its a simple matter of just copy pasting it to a folder.
>>
>> Goutham
>>
>>
>
> --
> Queer little twists and quirks go into the making of an individual.
> To suppress them all and follow clock and calendar and creed until the
> individual is lost in the neutral gray of the host is to be less than
> true to our inheritance.
> Life, that gorgeous quality of life, is not accomplished by following
> another man's rules.
> It is true we have the same hungers and same thirsts, but they are for
> different things and in different ways and in different seasons.
> Lay down your own day, follow it to its noon, or you will sit in an
> outer hall listening to the chimes but never reaching high enough to
> strike your own.
>

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#491

From: abhi <abhijithg@...>
Date: Tue Mar 24, 2009 5:20 am
Subject: Re: Lisp library

abhijith_foo

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Goutam,
First of all which  lisp are you using? scheme or common lisp? If you
are using common lisp, you can take a look at 'asdf' or mudballs.
Mudballs is new and has a much easier interface for downloading and
looking for packages.  On the other hand, asdf supports a lot of
libraries.
    As far as scheme is concerned I think there are people on the group
who are much more qualified than me to answer the question.

On Tue, Mar 24, 2009 at 4:09 AM, Goutham D L <dl.goutham@...> wrote:
> Hi,
> This might seem to be a trivial matter for most of you but I was
> wondering how do I add new libraries that I download?
> In python, its a simple matter of just copy pasting it to a folder.
>
> Goutham
>
>



--
Queer little twists and quirks go into the making of an individual.
To suppress them all and follow clock and calendar and creed until the
individual is lost in the neutral gray of the host is to be less than
true to our inheritance.
Life, that gorgeous quality of life, is not accomplished by following
another man's rules.
It is true we have the same hungers and same thirsts, but they are for
different things and in different ways and in different seasons.
Lay down your own day, follow it to its noon, or you will sit in an
outer hall listening to the chimes but never reaching high enough to
strike your own.

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#490

From: Goutham D L <dl.goutham@...>
Date: Mon Mar 23, 2009 10:39 pm
Subject: Lisp library

gouthamdl

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Hi,
This might seem to be a trivial matter for most of you but I was
wondering how do I add new libraries that I download?
In python, its a simple matter of just copy pasting it to a folder.

Goutham

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#489

From: Goutham D L <dl.goutham@...>
Date: Tue Feb 24, 2009 9:58 am
Subject: Re: Parsing in scheme

gouthamdl

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Thanks a lot. Will go through all the links

Goutham

On Tue, Feb 24, 2009 at 10:50 AM, Martin DeMello
<martindemello@...> wrote:
> On Mon, Feb 23, 2009 at 3:20 PM, Goutham D L <dl.goutham@...> wrote:
>> Hi,
>> Can anyone suggest some good tutorials for parsing in scheme?
>>
>> Goutham
>
> Another nice idea is to look up a tutorial on recursive descent
> parsers and translate the code to scheme
>
> martin
>

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#488

From: Martin DeMello <martindemello@...>
Date: Tue Feb 24, 2009 5:20 am
Subject: Re: Parsing in scheme

martindemello

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On Mon, Feb 23, 2009 at 3:20 PM, Goutham D L <dl.goutham@...> wrote:
> Hi,
> Can anyone suggest some good tutorials for parsing in scheme?
>
> Goutham

Another nice idea is to look up a tutorial on recursive descent
parsers and translate the code to scheme

martin

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#487

From: Chandrashekara K A <chandra.ka@...>
Date: Tue Feb 24, 2009 5:17 am
Subject: Re: Parsing in scheme

chandra_ka

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Depends on what you mean by parsing.

For simple string search kind of applications the following might work:
http://download.plt-scheme.org/doc/103p1/html/mzscheme/node115.htm

For push down automata:
http://docs.plt-scheme.org/parser-tools/index.html

It all comes down to whether your parsing language is a "regular" language or you need a stack to parse it (like if you have to look for matching braces etc)

--chandra

On Mon, Feb 23, 2009 at 3:20 PM, Goutham D L <dl.goutham@...> wrote:

Hi,
Can anyone suggest some good tutorials for parsing in scheme?

Goutham

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#486

From: "Thomas Elam" <tomelam@...>
Date: Tue Feb 24, 2009 5:12 am
Subject: Re: Parsing in scheme

tomelam

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--- In bangalore-lisp@yahoogroups.com, Goutham D L <dl.goutham@...> wrote:
>
> Hi,
> Can anyone suggest some good tutorials for parsing in scheme?
>
> Goutham
>

This looks very good from a first glance:
http://agave.garden.org/~aaronh/scheme/parsing-strings.html

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#485

From: Goutham D L <dl.goutham@...>
Date: Mon Feb 23, 2009 9:50 am
Subject: Parsing in scheme

gouthamdl

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Hi,
Can anyone suggest some good tutorials for parsing in scheme?

Goutham

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#483

From: "prakashswami" <prakashswami@...>
Date: Tue Jan 20, 2009 12:18 pm
Subject: Re: 31 Jan meeting of Bangalore Funcational Programming group

prakashswami

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--- In bangalore-lisp@yahoogroups.com, "Thomas Elam" <tomelam@...> wrote:
>
> http://groups.google.co.in/group/bangalore-
fp/browse_thread/thread/f4631e25b87b3fe5/12a617e9c6e29a0d#12a617e9c6e29a0d
>

I will be there!

Prakash

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#482

From: "Thomas Elam" <tomelam@...>
Date: Tue Jan 20, 2009 11:56 am
Subject: 31 Jan meeting of Bangalore Funcational Programming group

tomelam

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http://groups.google.co.in/group/bangalore-fp/browse_thread/thread/f4631e25b87b3\
fe5/12a617e9c6e29a0d#12a617e9c6e29a0d

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#481

From: "Beryl Nelson" <beryl@...>
Date: Thu Nov 27, 2008 5:25 pm
Subject: Re: The Little Schemer

berylenelson

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You can also use firstandsecond.com

little schemer: http://www.firstandsecond.com/store/books/info/search.asp?styp=tle&tle=the+little+schemer

how to design programs; there is an indian edition for Rs. 375: http://www.firstandsecond.com/store/books/info/search.asp?styp=tle&tle=how+to+design+programs

or landmark

little schemer: https://www.landmarkonthenet.com/SearchList.aspx?Keyword=the%20little%20schemer&SearchBy=Title

how to design programs: https://www.landmarkonthenet.com/SearchList.aspx?Keyword=how%20to%20design%20programs&SearchBy=Title

Beryl

On Thu, Nov 27, 2008 at 8:49 PM, Rajaram Gaunker <rajarams@...> wrote:

How to Design Programs

http://www.flipkart.com/design-programs-felleisen-intro-programming/8120324617-iu23f9hr8g

little schemer
http://www.flipkart.com/little-schemer-4th-daniel-friedman/0262560992-8rw3fzc6sb

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#480

From: Rajaram Gaunker <rajarams@...>
Date: Thu Nov 27, 2008 3:19 pm
Subject: Re: The Little Schemer

zimbabao

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How to Design Programs

http://www.flipkart.com/design-programs-felleisen-intro-programming/8120324617-iu23f9hr8g

little schemer

http://www.flipkart.com/little-schemer-4th-daniel-friedman/0262560992-8rw3fzc6sb

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#479

From: "Prakash Swaminathan" <prakashswami@...>
Date: Thu Nov 27, 2008 2:07 pm
Subject: Re: The Little Schemer

prakashswami

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I couldn't find it in Bangalore, tried Sapna, Gangarams. Amazon is
your best bet.

You can get HtDP from here: http://www.htdp.org/

--
Prakash Swaminathan
http://www.linkedin.com/in/PrakashS



On Thu, Nov 27, 2008 at 7:09 PM, Goutham D L <dl.goutham@...> wrote:
> Hi,
> Does anyone know where I can buy a copy of little schemer and How to
> Design Programs??
>
> Goutham
>
>

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#478

From: "Goutham D L" <dl.goutham@...>
Date: Thu Nov 27, 2008 1:39 pm
Subject: The Little Schemer

gouthamdl

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Hi,
Does anyone know where I can buy a copy of little schemer and How to
Design Programs??

Goutham

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#477

From: "Thomas Elam" <tomelam@...>
Date: Mon Nov 10, 2008 5:40 am
Subject: Re: Bangalore Functional Programming/Scheme/Lisp Meeting, October 25 2008

tomelam

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--- In bangalore-lisp@yahoogroups.com, "Roshan Mathews" <rmathews@...>
wrote:
>
> On Mon, Oct 20, 2008 at 1:38 PM, Vijay Mathew
> <vijay.the.schemer@...> wrote:
> > A Scheme/Functional programming event will be held on Saturday,
October
> > 25th.
> > The program is intended to give an introduction to functional
programing and
> > Scheme.
>
> So, what happened here?
>
> --
> Roshan Mathews
>

Roshan,

The meeting was really great and, surprisingly, had many capable
functional programmers present. The demos/talks were of a very high
educational value. Please follow up in the functional programming group:
http://groups.google.com/group/bangalore-fp?pli=1

We can look forward to some great functional programming meetings in
Bangalore now!

Regards,
Tom

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#476

From: "Roshan Mathews" <rmathews@...>
Date: Tue Nov 4, 2008 2:00 pm
Subject: Re: Bangalore Functional Programming/Scheme/Lisp Meeting, October 25 2008

roshmathews

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On Mon, Oct 20, 2008 at 1:38 PM, Vijay Mathew
<vijay.the.schemer@...> wrote:
> A Scheme/Functional programming event will be held on Saturday, October
> 25th.
> The program is intended to give an introduction to functional programing and
> Scheme.

So, what happened here?

--
Roshan Mathews

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#475

From: "Vijay Mathew" <vijay.the.schemer@...>
Date: Mon Oct 20, 2008 8:08 am
Subject: Bangalore Functional Programming/Scheme/Lisp Meeting, October 25 2008

vijaymathewp

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Hi all,

A Scheme/Functional programming event will be held on Saturday, October 25th.
The program is intended to give an introduction to functional programing and Scheme.
Please find below the time, place and agenda:

Venue:
DIGIBEE MOBILE LTD.
#7,1st Main Road, Domlur 2nd Stage,
Indiranagar, Bangalore � 560071,
Tel: +91 80 41482345/46/47,
Fax: + 91 80 41155912.

Time: 2 PM

Program:
2:00 PM: Introduction to Functional Programming. [Nick Allen]
2:30 PM: Short break for QA, discussions and refreshments.
2:45 PM: Building abstractions in Scheme. [Vijay Mathew]
3:15 PM: QA, parting remarks.

We are planning to meet-up on a regular basis to discuss, build and share interesting ideas in programming, with an emphasis on functional programming. There will be a discussion on creating a lively FP group in Bangalore. All who are interested are warmly invited to attend this first session.

Best regards,

-- Vijay

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#474

From: "Chakravarthy P" <pchakri@...>
Date: Thu Jun 26, 2008 11:43 am
Subject: Lisp Developers for Analytics, Teleonto Technologies, Hyderabad, Ind

c4chakri

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Teleonto Technologies Private Ltd., located in Hyderabad, India,
builds and delivers an exciting and growing range of analytics for the
telecommunications industry using Artificial Intelligence techniques.

Teleonto has made a major commitment to the use of Lisp and functional
programming. Our versatile ApT platform is a service-oriented
architectural workflow framework written in Common Lisp, and makes use
of high-performance, dynamic, object caching database technology. We
are extending our range to include Semantic Web techniques.

We are always interested in candidates who have experience with
functional programming, particularly with Lisp, but also with other
functional
languages such as Scheme or Smalltalk. We are particularly interested
in candidates who have delivered products written in Lisp and have
interest in Artificial Intelligence. Experience with data mining or
with applied artificial intelligence techniques is a plus. We have
openings at all levels of experience.

To apply or inquire, please send email with information about your
experience and interests to hr at teleonto dot com.
Find more information about Teleonto Technologies Pvt. Ltd. at
http://www.teleonto.com


--
Chakravarthy P
www.chakravarthy.in

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#473

From: Rajaram Gaunker <rajarams@...>
Date: Tue Jun 10, 2008 10:14 am
Subject: Join my personal knowledge network on TooStep

zimbabao

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You are invited to join personal knowledge network of Rajaram Gaunker on TooStep

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#471

From: "c4chakri" <pchakri@...>
Date: Thu Feb 28, 2008 12:14 pm
Subject: Lisp Developers for Analytics, Teleonto Technologies, Hyderabad, India

c4chakri

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Teleonto Technologies Private Ltd., located in Hyderabad, India,
builds and delivers an exciting and growing range of analytics for the
telecommunications industry using Artificial Intelligence techniques.

Teleonto has made a major commitment to the use of Lisp and functional
programming. Our versatile ApT platform is a service-oriented
architectural workflow framework written in Common Lisp, and makes use
of  high-performance, dynamic, object caching database technology. We
are extending our range to include Semantic Web techniques.

We are always interested in candidates who have experience with
functional programming, particularly with Lisp, but also with other
functional
languages such as Scheme or Smalltalk. We are particularly interested
in candidates who have delivered products written in Lisp and have
interest in Artificial Intelligence. Experience with data mining or
with applied artificial intelligence techniques is a plus. We have
openings at all levels of experience.

To apply or inquire, please send email with information about your
experience and interests to hr at teleonto dot com.
Find more information about Teleonto Technologies Pvt. Ltd. at
http://www.teleonto.com

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#470

From: "Thomas Elam" <tomelam@...>
Date: Fri Sep 21, 2007 10:15 am
Subject: Re: A place where Lisp should have an easy opening

tomelam

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--- In bangalore-lisp@yahoogroups.com, alephnull@... wrote:
>
> On 19 Sep 2007, tomelam@... wrote:
>
> > I already felt that the string & structured-data processing that
> > Lisp can do so well
>
> Keeping in mind that elisp is more procedural than functional,
> Finseth's seminal work [1] on text editing is quite enlightening.
>
> Footnotes:
> [1]  http://www.finseth.com/craft/
>
> --
> Alok
>
> We have nowhere else to go... this is all we have.
> 	 -- Margaret Mead
>

Alok,

Thanks for the reference.  I'll definitely have a look at it.  Did you
read `The Emacs Problem'?  I wouldn't say it's really just about
Emacs, but rather about how XML is evolving towards a hideous sort of
Turing completeness and what we really want for hierarchical-data
processing is `code is data and data is code' within the framework of
a great editor with great regex and text processing -- and the
problems getting to that nirvana.  At least that's my reading of it.

I'm not sure what you mean `elisp is more procedural than functional',
by the way.  Is it hard to write functional code in elisp?  If so,
why?  Care to elucidate?

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#469

From: alephnull@...
Date: Wed Sep 19, 2007 7:21 pm
Subject: Re: A place where Lisp should have an easy opening

alokgs

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On 19 Sep 2007, tomelam@... wrote:

> I already felt that the string & structured-data processing that
> Lisp can do so well

Keeping in mind that elisp is more procedural than functional,
Finseth's seminal work [1] on text editing is quite enlightening.

Footnotes:
[1]  http://www.finseth.com/craft/

--
Alok

We have nowhere else to go... this is all we have.
		 -- Margaret Mead

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#468

From: "Thomas Elam" <tomelam@...>
Date: Wed Sep 19, 2007 7:32 am
Subject: A place where Lisp should have an easy opening

tomelam

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Steve Yegge gives a simple explanation about string & structured-data
processing with Lisp:

http://steve.yegge.googlepages.com/the-emacs-problem

Is anyone here interested in this?  I am very glad I ran across these
views, because I already felt that the string & structured-data
processing that Lisp can do so well (on the borders of AI) is
something that it might be possible to convince stodgy old,
last-century-oriented management farts is worth using to make profits.

I actually need to think a lot deeper about Steve's article.

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#467

From: "Thomas Elam" <tomelam@...>
Date: Tue Sep 18, 2007 12:12 pm
Subject: Good help starting to get up to speed with Common Lisp

tomelam

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http://play.org/lisp [you can probably read this last
                       unless you are still not sure you
                       are ready to start learning Lisp]
http://play.org/links/lisp-intro
http://play.org/links/lisp-setup

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#466

From: samik chakraborty <samik_126@...>
Date: Tue Sep 18, 2007 6:47 am
Subject: Re: About reverse function

samik_126

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Thanks a lot to all,

This mail-chain has produced at least three ways of doing the same thing and all of them are different and elegant.

Great going guys... let us start some thing interesting like a project developed by us. I really like to join some project which has GPL but would like to that with in our group. What do you suggest?

A fair warning from my side that I am a new lisper so learning a lot from you all.

Thanks to all again,

Samik

P.S. If any one of you have some time for my blog please visit it and post your suggestion there:

http://lispsamik.blogspot.com/

----- Original Message ----
From: pramod shinde <prmdshinde@...>
To: bangalore-lisp@yahoogroups.com
Sent: Tuesday, 18 September, 2007 9:22:41 AM
Subject: Re: [bangalore-lisp] About reverse function

Thanks samik,

i m able to do the reverse function:

(defun rev (x)
 (if (endp x)
 nil
 (append (rev (cdr x)) (list (car x)))))

> rev '(a b c a d)
(d a c b a)

Pramod K.Shinde

----- Original Message ----
From: samik chakraborty <samik_126@yahoo. co.in>
To: bangalore-lisp@ yahoogroups. com
Sent: Sunday, September 16, 2007 10:14:53 PM
Subject: Re: [bangalore-lisp] About reverse function

Hi Pramod,

Sorry to spell your name incorrect last time. The following code uses a recursive call to do a reverse of a list only problem is the tr variable it needs to be set to �() each time after a call to this reverse function. I must be missing something stupid here if you can rectify it, will be great.

CL-USER> (setf tr '())

CL-USER> (defun rev(lst)

(setf tr (list* (car lst) tr))

(if (not (eq (cdr lst) nil))

(rev (cdr lst))

(return-from rev tr)))

CL-USER> (rev (list 1 2 3 4 5))

(5 4 3 2 1)

As always, very best

Samik

----- Original Message ----
From: pramod shinde <prmdshinde@yahoo. com>
To: bangalore-lisp@ yahoogroups. com
Sent: Monday, 17 September, 2007 2:50:08 AM
Subject: [bangalore-lisp] About reverse function

Hi all ,
Can anybody write the recursive function LISP function that will reverse elements of the list(please don't use built-in reverse function).?
I have tried the answer with car,cdar,last, lastbut .But I am not able to come at exact answer.

Thanks for your any suggestion.

Regards,

Pramod K.Shinde

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