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Installing Erlsom using CEAN

June 17, 2009 by Chintana

I’ve already installed Erlang using yum in Fedora 10. I wanted to install Erlsom and it’s available through CEAN. Steps for installing CEAN is explained nicely in the FAQ. Content of my VERSION file,

CEAN Erlang/OTP R12B erts-5.6.5 linux-x86 devel

You can find the version of Erlang installed with yum info erlang. erts version can be found by ls /usr/lib/erlang | grep erts.

After this when I tried to do any operation I received the following error,

** exception error: undefined function ibrowse:start/0
     in function  cean:geturl/3
     in call from cean:packages_from_html/1

Fixing this was simple. CEAN needs the ibrowse package which doesn’t get installed when you install it via yum. I was a bit confused at first because the site said,

If you already have an existing Erlang installation and want to use CEAN on it, you just need to download the CEAN library and extract the archive into your erlang lib directory.

Solution was to download the entire R12B archive from the site and to copy the ibrowse library to /usr/lib/erlang/lib.

Then you can install Erlsom by,

1> cean:install(erlsom).

Update: As it turns out this version of Erlsom getting installed via CEAN is an old one. You need to go to the SF project page and get the latest version and install it.

  • http://www.thebrowserbuddy.com George Willams

    I’ve been doing some work with Erlang lately and wanted to do figure out how to do XML parsing. After a bit of looking I found Erlsom, which is a XML parsing library for Erlang. It has a few modes including a SAX parser and a “simple sort of DOM parser”. I have had experience using Java, xerces and jdom so this sounded good to me. I created an XML file containing music data, stuff like artist, album, song title and etc. I decided to screw around with some of the examples found in their docs.

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