DiPot: Ice Tea tech » Standards

WordPress: External RSS Feeds Optimization with KB Advanced RSS

ageor — Wed, 22 Apr 2009 19:00:10 +0000

Apart from its own Ice Tea tech blog, Dipot.com also displays two external feeds relating to Optimization and Standards. I needed to optimize the post titles of these two feeds by getting rid of their long suffixes, both for better looks and for more content within the same space.

The feeds were served by the standard RSS WordPress 2.7.1 widget, which is fine, except it does not support much customization. After some search, I found Advanced RSS 1.0.1 WordPress plugin and KB Advanced RSS 2.1.3 WordPress plugin. Smart RSS only works until WP 2.7.0 and I didn’t want to tweak with that. Advanced RSS only works until WP 2.6.2 and requires PHP5, DOM and XSL extensions loaded on the server and I don’t want to depend on those if I don’t need to, so the choice was easy.

Installation of KB Advanced RSS worked flawlessly right from within wp-admin. Then, on my first attempt to configure it, I came across a problem which could very well had been a show stopper: for some reason, except for the feed’s URL and Title, the widget would not commit any of the other parameters to the “Options” table of the database. Troubleshooting this issue, I ended up reading all the users’ comments on the plugin’s site. As usual, I was not alone; this is a common issue. Thankfully, Wesley of http://www.improvingtheweb.com had already posted the solution to PHP4 not committing widget field changes in WordPress. The solution worked like a charm. And, as expected, when I later upgraded to PHP5 the problem wasn’t even there to begin with.

KB Advanced RSS is well thought-out, very straight forward with good documentation and examples. It supports all the features of the standard widget (including multiple instances) plus formatting and full support of all the feed’s fields to display or not (including the debugging tool to show which these fields are)! It further supports two modifiers to optionally manipulate the string before display, by taking out a number of characters from the start (ltrim) and/or trimming it to a specific length (trim).

Alas, what I actually needed was to take out a number of characters from the end of the string. Fortunately, as it turned out, KB Advanced RSS’s code is pretty straight-forward and extending it with my own modifier (rtrim) to do just that was only a matter of 3 lines of PHP code added to the version of the plugin that runs by my version of Wordpress; there’s one for versions up to 2.7 (pre-wp-2-7.php) and one for versions after that (post-wp-2-7.php). Here is the PHP code from the modified post-wp-2-7.php (my rtrim extension is in blue):

///////////////////////////////// CUSTOMIZATIONS /////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////
// If you want to write customizations, put them here. The variable to modify is $text. See the FAQ.
/////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////

// right trimming
// cuts $rtrim characters from the right
// by ageor, April 9, 2009
$rtrim = (is_numeric($rtrim) && 0<$rtrim) ? (int) $rtrim : null;
if (is_int($rtrim))
$text = substr( $text, 0, strlen($string)-$rtrim );

// left trimming:
$ltrim = (is_numeric($ltrim) && 0<$ltrim) ? (int) $ltrim : null;
if (is_int($ltrim))
$text = substr( $text, $ltrim );

// length trimming (do after left trimming)
$trim = (is_numeric($trim) && 0<$trim) ? (int) $trim : null;
if (is_int($trim))
$text = substr( $text, 0, $trim );

return $text;

The way this is written, the string in question can undergo any mix of all three trimming types necessary.

All setting up and troubleshooting took place by adding one instance of the widget and configuring it, then a second instance. When all was done and I had what I wanted, I removed the original two instances of the original RSS widget, positioned the new ones on top and saved, certain I was done. However, as the resulting “Widgets” Wordpress admin page suggested after saving, something was very wrorg. It displayed the message ‘You are using 3 widgets in the “Left Sidebar” sidebar’ but not the widgets themselves, nor the “Save Changes” button. Sure enough, I ended up with an unworkable site, as these where the first 2 widgets on the left column of Ice Tea tech and the page that appeared ended with the title banner. Disaster!

To cut a long story short, plenty of “trial and error”s later and with the help of Vicki of neTWire, here is my conclusion: For KB Advanced RSS widget to work with WP 2.7.1 and the Atahualpa WordPress theme, the WordPress RSS widget needs to be activated and positioned above it. That’s how I temporarily solved my problem, until (if ever) I have the time to look deeper into the code involved or newer versions of the theme and/or the plugin solve it for good.

Just to be clear, none of the problems and troubleshooting it took to solve them can be traced back ato KB Advanced RSS alone. Atahualpa is a great but complex theme and it is their combination that turned out to be problematic. It’s not the first example of a bad mix and it won’t be the last. On the flip side, with each such incident we get to learn something new that will potentially save others and ourselves some frusrtation and time in the future.

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A List Apart: Articles: 12 Lessons for Those Afraid of CSS and Standards

ageor — Mon, 23 Feb 2009 00:02:39 +0000

A List Apart: Articles: 12 Lessons for Those Afraid of CSS and Standards
By ageorg

This bookmark links to http://alistapart.com/articles/12lessonsCSSandstandards

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About DiPot

ageor — Tue, 20 Jan 2009 17:05:24 +0000

DiPot, short for Digital Pot, was founded in 2001 to push Digital Convergence, then in its infancy, and Communication. Now that our everyday life is digital and lots of communication means are at our disposal, DiPot is still here to help enhance, improve and optimize both in the user’s level.

To that extend, the Ice Tea tech blog focuses on the digital age tools, improvement and enhancement of the user’s experience. Additional feeds focus on Optimization and Standards, which we perceive to be the cornerstones of further technology improvement and penetration.

Based on researching the reality & trends, many forms of feedback and our own needs and dreams, DiPot strives to catch the pulse of and assist those out there who, like us, never have enough of a good thing.

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Microsoft IE and Standards Compliance

ageor — Sat, 29 Dec 2007 08:17:12 +0000

There is an indirect update to my December 16, 2007 “Web browser standards: Opera Software vs Microsoft” post in the “Internet Explorer 8 and Acid2: A Milestone” IEBlog post. The way I see it, Microsoft effectively confirms allegations about not complying with standards (by, at least, not seriously updating IE6 in over 5 years and creating lots of problems with IE7) promising it will do so with IE8:

“… IE8 now renders the “Acid2 Face” correctly in IE8 standards mode. …”

“… With respect to standards and interoperability, our goal in developing Internet Explorer 8 is to support the right set of standards with excellent implementations and do so without breaking the existing web. This second goal refers to the lessons we learned during IE 7. IE7’s CSS improvements made IE more compliant with some standards and less compatible with some sites on the web as they were coded. Many sites and developers have done special work to work well with IE6, mostly as a result of the evolution of the web and standards since 2001 and the level of support in the various versions of IE that pre-date many standards. We have a responsibility to respect the work that sites have already done to work with IE. We must deliver improved standards support and backwards compatibility so that IE8 (1) continues to work with the billions of pages on the web today that already work in IE6 and IE7 and (2) makes the development of the next billion pages, in an interoperable way, much easier. …”

If you wonder who made the “existing web” prone to “breaking”, I don’t. In my mind, it was Microsoft. When IE was dominant, it never completely adhered to standards, while extending HTML in all sorts of ways. When standards emerged or caught up, was IE updated accordingly? No.

Is Microsoft finally entering a standards compliance era? How, by adding a “Standards mode” in IE8? I still have my doubts and for good reason. You see, past experience says otherwise.

Web developers, Microsoft hasn’t and won’t ever do it for you. If you are interested in every computer owner being able to fully utilize your sites, please do us all a favor and comply to universal, not Microsoft standards. Windows percentage in the PC market is still very large but dropping. Make them build a decent browser; or not, who cares? Firefox, Opera etc. are excellent, compliant and multiplatform browsers. Don’t build the Internet depended on ActiveX and anything else non-standard enough so only IE (therefore only Windows) users can view.

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Web browser standards: Opera Software vs Microsoft

ageor — Sun, 16 Dec 2007 15:45:08 +0000

Don’t you just hate it when a web page won’t show correctly in Firefox or any non-Internet Explorer browser?

I have always wondered why any web developer would block all Linux & Mac OS users out of their sites and frustrate a good portion of Windows users, those who prefer Firefox. On top of that, some sites don’t even look the same in IE6 & IE7 due to incompatibilities of their own, which recently forced Microsoft to decide to make IE7 available to illegal Windows owners as well!

Over time, it is a well-known fact that Microsoft won’t respect standards very much. Java has been a good example and HTML compliance is no different. So, what’s new about any of that? This extract from the Friday, December 14, 2007 8:00 AM PST Paul Meller and James Niccolai’s PC World article “Opera Seeks Tougher Remedy in Microsoft Case“, describing the “… antitrust suit filed with the Commission this week …” by browser maker Opera Software, which I find especially interesting and long overdue:

“… In addition to the bundling charge, Opera also complains that Microsoft does not follow Web standards, putting rival browsers at a disadvantage. The issue is significant because if all Web browsers do not use the same standards, Web site developers are likely to design their Web sites to work with the most widely used browser, which is Internet Explorer. That gives people a disincentive to use other browsers.

Microsoft often takes part in debates over Web standards, and says it will implement them, but ultimately does not, Opera’s Lie said. He pointed to CSS, XHTML and DOM as areas where Microsoft does not comply with or is inconsistent. …”

I will follow up on this with great interest. I would prefer users and the industry to force Microsoft (and web developers) to comply by (prefferably open) standards (the cornerstone of the Internet), but a court might as well do it…