w3c page 2 - Dave's Blog


Internationalization Best Practices: Specifying Language in XHTML and HTML Content

2009 Jun 25, 1:53"The document provides practical best practices related to specifying the language of content that HTML content authors can use to ensure that their HTML is easily adaptable for an international audience. These are best practices that are best addressed from the start of content development if unnecessary costs and resource issues are to be avoided later on."PermalinkCommentslanguage i18n internationalization html w3c xml reference xhtml technical

W3C I18n Tutorial: Declaring Language in XHTML and HTML

2009 Jun 25, 1:51"By following this tutorial you should be able to: ... recognize the available alternatives for declaring language, and how they differ ..."PermalinkCommentsw3c internationalization language html xml xhtml i18n tutorial technical

Content-Type Processing Model

2009 Jun 22, 3:12HTML5's mime-sniffing is getting moved to an IETF doc: "Many web servers supply incorrect Content-Type headers with their HTTP responses. In order to be compatible with these servers, user agents must consider the content of HTTP responses as well as the Content-Type header when determining the effective media type of the response. This document describes an algorithm for determining the effective media type of HTTP responses that balances security and compatibility considerations."PermalinkCommentsmime mime-sniffing ietf http w3c html5 technical

Existing Technologies Survey - Media Fragments Working Group Wiki

2009 Jun 17, 7:17A list of how some existing sites do URL-fragment-like things.PermalinkCommentsvideo web w3c url uri fragment

Use cases and requirements for Media Fragments

2009 Jun 17, 7:16"Use cases and requirements for Media Fragments"PermalinkCommentsvideo uri fragment internet web w3c

Misattribution - Anne's Weblog

2009 Jun 8, 3:58"Everyone can file bugs against HTML5, including you. To be clear, that something is filed in the W3C bug database does not mean it is likely it will be included."PermalinkCommentshtml5 blog bug html w3c

HTML 5 - Links - Link Types

2009 May 4, 12:06"The following table summarizes the link types that are defined by this specification. This table is non-normative; the actual definitions for the link types are given in the next few sections."PermalinkCommentshtml html5 w3c link reference standard url uri

The Self-Describing Web

2009 Apr 7, 1:13A sort of vertical cross section of an overview of what the web should look like from HTTP & URIs to GRDDL & RDF. Oh, and there's a pretty graph at the bottom. "This finding describes how document formats, markup conventions, attribute values, and other data formats can be designed to facilitate the deployment of self-describing, Web-grounded Web content."PermalinkCommentsweb w3c xml html http semanticweb microformats xhtml atom grddl rdfa rdf

Planet HTML5

2009 Apr 7, 10:04Aggregation of feeds concerning HTML5 including Ian Hickson's, Planet Mozilla, Planet WebKit, the IE Blog, the WHATWG blog, etc etc.PermalinkCommentsw3c html5 html blog feed daily

GraphML Primer

2009 Mar 23, 6:19"GraphML Primer is a non-normative document intended to provide an easily readable description of the GraphML facilities, and is oriented towards quickly understanding how to create GraphML documents."PermalinkCommentsgraphml graph format xml howto reference w3c

Web addresses in HTML 5

2009 Mar 23, 11:06The HTML5 spec tells us how it is in the real world for URLs: "This specification defines various algorithms for dealing with Web addresses intended for use by HTML user agents. For historical reaons, in order to be compatible with existing Web content HTML user agents need to implement a number of processes not defined by the URI and IRI specifications [RFC3986], [RFC3987]."PermalinkCommentshtml html5 url uri reference w3c

Outline View Internet Explorer Extension

2009 Mar 23, 8:13

I've made another extension for IE8, Outline View, which gives you a side bar in IE that displays an outline of the current page and lets you make intrapage bookmarks.

The outline is generated based on the heading tags in the document (e.g. h1, h2, etc), kind of like what W3C's Semantic data extractor tool displays for an outline. So if the page doesn't use heading tags the way the HTML spec intended or just sticks img tags in them, then the outline doesn't look so hot. On a page that does use headings as intended though it looks really good. For instance a section from the HTML 4 spec shows up quite nicely and I find its actually useful to be able to jump around to the different sections. Actually, I've been surprised going to various blogs how well the outline view is actually working -- I thought a lot more webdevs would be abusing their heading tags.

I've also added intrapage bookmarks. When you make a text selection and clear it, that selected text is added as a temporary intrapage bookmark which shows up in the correct place in the outline. You can navigate to the bookmark or right click to make it permanent. Right now I'm storing the permanent intrapage bookmarks in IE8's new per-domain DOM storage because I wanted to avoid writing code to synchronize a cross process store of bookmarks, it allowed me to play with the DOM storage a bit, and the bookmarks will get cleared appropriately when the user clears their history via the control panel.

PermalinkCommentstechnical intrapage bookmark boring html ie8 ie extension

Semantic Search the US Library of Congress

2009 Feb 23, 10:31"This is an experimental service that makes the Library of Congress Subject Headings available as linked-data using the SKOS vocabulary. The goal of lcsh.info is to encourage experimentation and use of LCSH on the web with the hopes of informing a similar effort at the Library of Congress to make a continually updated version available. More information about the Linked Data effort can be found on the W3C Wiki."PermalinkCommentslibrary-of-congress loc semanticweb web rdf metadata library api

The WHATWG Blog - Blog Archive - This Week in HTML 5 - Episode 20

2009 Feb 3, 11:15"r2719 specifies that browsers should not allow scripts to set document.domain to anything on the Public Suffix List, such as "com" or "co.jp". Essential background reading on why this is dangerous: Untraceable XSS Attacks. Most browsers already block this attack, e.g. Firefox since 3.0. [Background: Re: Setting document.domain]"PermalinkCommentshtml5 tld publicsuffix dns security html internet web reference w3c

Standards Suck

2008 Oct 24, 9:29"Standards Suck publishes video podcasts made by Anne van Kesteren, Marcos Caceres, and Lachlan Hunt about Web standards. We want to give the community an insight into standardization by critically looking at what goes on behind the scenes at the W3C."PermalinkCommentsw3c blog video css html html5 xhtml web interview

Mozilla Labs launches geolocation extension

2008 Oct 13, 2:21Neat geolocation API for web apps: "Mozilla Labs has announced the availability of Geode, an experimental Firefox extension that implements the W3C Geolocation Specification. Geode provides an early preview of the same location-aware functionality that will be included in both Fennec and Firefox 3.1."PermalinkCommentsgeolocation geo w3c mozilla javascript web


2008 Oct 1, 1:08A weekly summary of the going-ons in the WHATWG usually on the topic of squabbles in HTML5 esp. what to do about the alt attribute in the img tag. Interesting stuff on charsets.PermalinkCommentsdevelopment software whatwg html5 html specification feed rss user-agent w3c

Yahoo! Search Blog: Yahoo! Chats with Semantic Web Expert, Ben Adida

2008 Sep 16, 3:57Interview with Ben Adida on RDFa: "...RDFa is ready. It has just been approved by the W3C as a Candidate Recommendation, with the specific text of the specification and a brand new Primer published on June 20th. Y!: What can I do with RDFa? BA: You can tell the world what various components on your web page mean by marking up things like: The title of a photo Your name and contact information The license under which you're distributing your latest MP3 The ingredients of a cooking recipe The price of an item A gene on which you recently wrote a paper ... Anything that you want to make more machine-readable"PermalinkCommentsrdf microformats yahoo semantic interview ben-adida semanticweb via:felix42

Deriving a Non-Recursive Fibonacci Function Using Linear Algebra

2008 Aug 20, 10:51

In my Intro to Algorithms course in college the Fibonacci sequence was used as the example algorithm to which various types of algorithm creation methods were applied. As the course went on we made better and better performing algorithms to find the nth Fibonacci number. In another course we were told about a matrix that when multiplied successively produced Fibonacci numbers. In my linear algebra courses I realized I could diagonalize the matrix to find a non-recursive Fibonacci function. To my surprise this worked and I found a function.
The Nth Fibonacci value is (1 + sqrt(5))^N - (1 - sqrt(5))^N all over sqrt(5) * 2^N
Looking online I found that of course this same function was already well known. Mostly I was irritated that after all the algorithms we created for faster and faster Fibonacci functions we were never told about a constant time function like this.

I recently found my paper depicting this and thought it would be a good thing to use to try out MathML, a markup language for displaying math. I went to the MathML implementations page and installed a plugin for IE to display MathML and then began writing up my paper in MathML. I wrote the MathML by hand and must say that's not how its intended to be created. The language is very verbose and it took me a long time to get the page of equations transcribed.

MathML has presentation elements and content elements that can be used separately or together. I stuck to content elements and while it looked great in IE with my extension when I tried it in FireFox which has builtin MathML support it didn't render. As it turns out FireFox doesn't support MathML content elements. I had already finished creating this page by hand and wasn't about to switch to content elements. Also, in order to get IE to render a MathML document, the document needs directives at the top for specific IE extensions which is a pain. Thankfully, the W3C has a MathML cross platform stylesheet. You just include this XSL at the top of your XHTML page and it turns content elements into appropriate presentation elements, and inserts all the known IE extension goo required for you. So now my page can look lovely and all the ickiness to get it to render is contained in the W3C's XSL.

PermalinkCommentstechnical mathml fibonacci math

[whatwg] Web Applications 1.0 Draft

2008 Aug 20, 9:48Apple will or will not license the canvas tag? 'Apple Computer, Inc. ("Apple") believes it has intellectual property rights ("IP Rights") relative to WHATWG's Web Applications 1.0 Working Draft, dated March 24, 2005, Section 10.1, entitled "Graphics: The bitmap canvas". At this time, Apple reserves all rights in its IP Rights and makes no representations as to Apple's willingness or unwillingness to license these IP Rights. However, in the event that the Web Applications 1.0 Working Draft, dated March 24, 2005, becomes part of a formalized draft standard at W3C or IETF, for example, Apple is prepared to address the disclosure/licensing rules of such organizations.'PermalinkCommentsapple patent html ip html5 canvas whatwg browser browser-war
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