How to I create a sef_ext.php

I would like to create a sef_ext.php file for my component.  Where can I find some instruction.  Is it possible to have a demo version to try?
Thank you in advance

Hello,

The documentation explains the basic principle of writing a SEF Advance extension. In the SEF Advance package you can find example sef_ext.php file which can be used as a template for writing your own. You can also look at the extensions for already available components like userlist, recommend or bookmarks.

There is also a nice written tutorial here .

The trial version of SEF Advance to test with can be downloaded here:
www.sakic.net/products/sef_advance/trial/

Good luck.

Can you give some help to get started please.

I use the sample sef_ext.php included.
- I change the class name to joomap (for Joomla sitemap component).

All works good at this point using the sample. The SEF is the component name so the URL looks like www.mysite.com/joomap

Now for example i want to change the SEF name, so i use

$custom_comp = array(
"joomap" => "sitemap"
);

Now the URL shows www.mysite.com/sitemap but the link takes me to the home page.

So, i obviously have something very basic wrong.

Post your extension file.

i figured it, thanks.....

So i have another problem....
I am trying to make an extension for the gallery2 bridge.

The string passed to the create() only has the the component id.
i am therefore not able to process the remainder as it doesn't exist.

The component is successfully being proceed as "photos" from the URL
www.canza.cz/option,com_gallery2/Itemid,55/

Mouse over the photo produces the following URL
www.canza.cz/photos/?g2_itemId=17/
but it is not passed as the string when the mouse is clicked.
only the component part, thus making it impossible to fully process.

defined( '_VALID_MOS' ) or die( 'Restricted access' );

$custom_comp = array(
"gallery2" => "photos"
);

class sef_gallery2 {

function create ($string) {
return $sefstring;
}

        function revert ($url_array, $pos) {
$QUERY_STRING = '';
return $QUERY_STRING;
} 
}