[erlang-questions] newbie: why c.erl is special?

[David Mercer]

What am I missing from the description of Erlang packages that does not do
what everyone wants: namely, namespaces?  I would think if I want to create
all my modules under my own "mercer" namespace, I'd just put them in a
directory called "mercer" and then name my modules "mercer.M" (where M is
the module name.

If this is what everyone seems to want, why hasn't the package notation
caught on?

Cheers,

David Mercer

-----Original Message-----
From: erlang-questions-bounces@REDACTED
[mailto:erlang-questions-bounces@REDACTED] On Behalf Of Richard Carlsson
Sent: Wednesday, March 05, 2008 04:02
To: Anthony Kong
Cc: erlang-questions
Subject: Re: [erlang-questions] newbie: why c.erl is special?

It was implemented a long time ago, but there was not a lot of
community enthusiasm for it, so it's not been made an official
part of the language yet. Still, it should work also in R12.

http://www.erlang.org/doc/man/packages.html

It was originally inspired by/ripped off from Java, but in
practice it's more similar to Lisp namespaces; see "The Complete
Idiot's Guide to Common Lisp Packages" for details:
http://www.flownet.com/ron/packages.pdf

     /Richard

Anthony Kong wrote:
> Is it already implemented? Because I found this document:
> 
> http://www.erlang.se/publications/packages.html
> 
> Anyway, I was unable to get it to work according to this info.
> 
> Cheers, Anthony
> 
> On Sun, Mar 2, 2008 at 12:38 AM, Thomas Lindgren
> <thomasl_erlang@REDACTED> wrote:
>>  --- shiwei xu <xushiweizh@REDACTED> wrote:
>>
>>  > I think flat module namespaces is a defect of erlang
>>  > design.
>>
>>  Richard Carlsson proposed java-like packages some
>>  years ago, and the code for them might still be
>>  provided in OTP. (I thought they had some flaws, but
>>  they might be what you want.)
>>
>>  http://citeseer.ist.psu.edu/398052.html
>>
>>  The usual approach to handling name clashes without
>>  packages is to use your 'approach 2', prefixing the
>>  modules with their owner application.
>>
>>  Best,
>>  Thomas


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