Developers that embed structured data in their web pages can choose among a number of languages such as RDFa, Microformats and Microdata. Each of these structured data languages, while incompatible at the syntax level, can be easily mapped to Rdf. Json has proven to be a highly useful object serialization and messaging replacement for Soap.
In an attempt to harmonize the representation of Link Data in Json, this specification outlines a common Json representation format for Linked Data that can be used to represent objects specified via RDFa, Microformats and Microdata.

There is currently some discussion going on in the RDFa Community on this markup mechanism (start of thread).
A great amount of effort was made to ensure that the markup mechanism was compatible with Microformats.

Accounting: Fabrizio Scatena
Graphic design: Enrico Caputo [CaroselloLab] and Lorenzo De Tomasi
Information architecture and usability: Lorenzo De Tomasi and Ania Maslova
Development: Francesco D’Ambrosio and Lorenzo De Tomasi
Content management system: Drupal

Part of Sinapsi. A semantic WordPress project.

Simplified code for designers.

Version 2.8v1.0

License: Gnu-Gpl 3.0

Code: xhtml strict validated.

Tested with: WordPress 2.8.

Xhtml code and php adjustments by Lorenzo De Tomasi. The widget has been derived from Front page login by Hermescb. Thanks to Marco Buttarini for the php code for the “Remember me” checkbox.

If you need frequent and constant updates and upgrades for WordPress Login Widget, please sustain our work . We’ll release express updates compatible with latest versions of WordPress and qTranslate plugin. Feel free to ask for new features or to suggest a bug.

Download v. 2.8v1.0 (php single file zip compressed, 4Kb)

To do

• After login stays on current page (now always goes to the homepage);
• Full test on Internet Explorer 6;
• Full test on WordPress 2.8;
• Enable multiple widgets;
• Publish css file for default WordPress theme (Kubrik).

History

v. 2.8v1.0

• Username link bug corrected.
• Simplified php code

v. 2.7v1.1

• Custom widget title and abstract before the login form/infos
• Title bug corrected in widget setup options

Download v. 2.7v1.1 (php single file zip compressed, 4Kb)

v. 2.7v1.0

• Compatible with Wordpress 2.7: changed gettext values
• Added link to plugin page
• Added direct link to user profile
• Changed version rules: v. <Wordpress cms version>v<Plugin version>

Download v. 2.7v1.0 (php single file zip compressed, 4Kb)

v. 1.1.1

• Add "text" and "password" classes to input fields, for Internet Explorer 6 compatibility;
• Insert php code from wp-login.php instead of text, to activate automatic localization;
• Insert “Forgot your password?” link.

Download v. 1.1 (php single file, 4Kb)

www.madotto.com

The project has been ideated by Lunaria and funded with support from the European Commission (Youth in action program).

Information architecture and interface design: Lorenzo De Tomasi
Content management system development: Marco Ridoni and  Lynx (released under a Gnu/Gpl license).

Everyone is invited to contribute new features and knowledge to Oryx. The project is hosted as a Google Code project under MIT license.

1. Open the page-template Page with category and save it from your browser (File > Save page as…).
2. Rename the file wp-page_category.txt in wp-page_category.php.
3. Open the template Navigate posts and save it from your browser (File > Save page as…).
4. Rename the file navigate_posts.txt in navigate_posts.php.
5. Using an free software ftp client (like Filezilla) copy both the files wp-page_category.php and navigate_posts.php into your wp-content/themes/<your theme folder>/.
6. Login at your website and write a new page.
7. Select the Page with category template as page-template.
8. Create a custom field with displayed_categories as Key and the numeric id of the category you want to display as Value.
9. Publish the page.
10. Visit the page you have just published.

License

©2008 by Lorenzo De Tomasi. Copyleft/Some rights reserved. The php code has been released under a Gnu/Gpl 3.0 license.

Future improvements

• Make the <!--more--> work. [Can you help to understand the problem? Thanks]
• Set the number of post listed for each page, using pagination buttons. If no value is set, display the default number of posts.
• Display more than one category at time (for example books and dvds), using comma separated numeric category-ids (131, 12, 36).
• Check if displayed_categories is set.
• Check if categories exist.

The xhtml strict code

In Wordpress, edit the file /wp-includes/widgets.php, commenting the following code.

__() and _e() are for localization with gettext.

<!−−
<form id=”searchform” method=”get” action=”<?php bloginfo(‘home’); ?>”>
<div>
<input type=”text” name=”s” id=”s” size=”15″ /><br />
<input type=”submit” value=”<?php echo attribute_escape(__(‘Search’)); ?>” />
</div>
</form>
−−>

…and insert the following code:

<?php
function wp_widget_search($args) {
extract($args);
echo $before_widget;
?>
<form id=”searchform” method=”get” action=”<?php bloginfo(‘home’); ?>”>
<p>
<label for=”s”><span>
<?php _e(‘Search’); ?>
</span></label>
<input name=”s” id=”s” type=”text” accesskey=”s” />
<input type=”reset” value=”<?php _e(‘Reset’); ?>” accesskey=”r” />
<input type=”submit” value=”<?php echo attribute_escape(__(‘Search’)); ?>” />
</p>
</form>
<?php
echo $after_widget;
}
?>

The css code

Add the following cascade style sheet (css) to your theme .css file, deleting other #searchform styles, if necessary.

#searchform {
margin: 0;
padding: 0;
overflow: hidden;
}
#searchform label {
float: left;
width: 20px;
height: 19px;
background: url(media/images/search_label.gif) no-repeat;
}
#searchform label span {
visibility: hidden;
}
#searchform input[type="text"] {
float: left;
width: 120px;
height: 13px;
font-size: .9em;
border-right: none;
border-left: none;
background-color: white;
}
#searchform input[type="text"]:focus {
border-color: silver;
}
#searchform input[type="reset"] {
float: left;
border: none;
width: 19px;
height: 19px;
background: url(media/images/search_reset.gif) no-repeat;
padding-left: 20px;
margin-right: -6px;
overflow: hidden;
color: transparent;
}
#searchform input[type=reset]:active {
background: url(media/images/search_reset_hover.gif) no-repeat;
}
#searchform input[type=submit]{
display: none;
}