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03 Oct 09

Mac Dev Center: WebArchive Class Reference

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WebArchive format class WebKit framework open source 2009

A WebArchive object represents a webpage
subresources and sub
frames of the main resource
3 more annotations...
- A WebArchive object contains the
  main resource,
- The main resource can be an entire webpage, a portion of a webpage, or some other kind of data such as an image.
- represent rich web content in any application

Mac Dev Center: WebKit Objective-C Framework Reference

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WebArchive format class WebKit framework open source 2009

WebKit provides a set of classes to display web content

13 Aug 09

XBinary: Extended Binary Format Support for Mac OS X

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XBinary Extended Binary Format kernel binary Universal Binary format Apple Inc. Mac OS X Diigo 48946 2009

© Amit Singh
Executive Summary

This document discusses XBinary, a new software that lets you add kernel-level support for executing files in arbitrary binary formats on Mac OS X.
50 more annotations...
- —With the advent of x86-based Macintosh computers, Universal binaries, originally known as "fat" or multiple-architecture binaries, appeared in Mac OS X.
- Universal Binaries
- along with a header that describes each constituent binary.
- for one or more architectures
- a wrapper that contains Mach-O binaries
- a "4-way fat" executable could consist of Mach-O executables for the i386 (32-bit Intel), x86_64 (64-bit Intel), ppc (32-bit PowerPC), and ppc64 (64-bit PowerPC) architectures
- we'll need to write special software
- Mac OS X does not provide any kernel-level or user-level interfaces to extend binary format support.
- software will involve a kernel extension.
- new kernel functionality
- extend the kernel
- and execute them through specified handler programs.
- Extending Executability
- Let us call the new software that implements these features XBinary.
  
  binfmt_misc
  
  Those familiar with the Linux kernel will realize that functionality similar to what's been described here exists in Linux as the binfmt_misc kernel feature. XBinary is conceptually similar
- recognize arbitrary binary formats
- XBinary also has some Mac OS X specific features.
- a kernel extension (xbinary.kext)
- a command-line tool (xbinary
- download and install the XBinary package
- make experimentation involving new binary formats easy
- research software at this point
- for developers, researchers, and power users
- take XBinary for a spin
- XBinary: extended binary format support for Mac OS X
  Copyright (c) 2009 Amit Singh. All Rights Reserved.
  http://osxbook.com
  
  The XBinary software allows you to extend the Mac OS X kernel such that it
  can recognize arbitrary binary formats and execute them through specified
  handler programs. (Mac OS X natively supports executing only Mach-O binaries,
  Universal (fat) binaries, and interpreter scripts.)
  
  XBinary consists of a kernel extension (xbinary.kext) and this command-line
  tool, which lets you control the XBinary facility. This requires superuser
  privileges, so you should run this tool using sudo(8). The XBinary kext must
  be loaded for the facility to be available.
- The XBinary software
- using the xbinary tool
- You can add and manipulate in-kernel entries that enable recognition of
  binary formats.
- copious "help" output
- You can also specify flags that affect how a matched entry is processed. By
  default, the argument vector IS adjusted and setuid/setgid binaries are NOT
  allowed.
- Each entry must have as its name a unique identifier string up to 31 bytes
  in size. Additionally, a set of other arguments specify to the kernel how
  to recognize that binary format and which interpreter to invoke to handle
  it. XBinary can recognize a binary EITHER by matching magic bytes within
  the first page of the file OR by matching a file extension. OTHER_ARGS must
  be a valid combination of the following arguments (some are optional).
- These examples assume that you are on an x86 (little-endian) machine.
- Let us look at Java applications
- given a Java class file
- and subsequently invoke the Java application launcher.
- then specify this wrapper script as the interpreter
- a wrapper script
- We don't even have to write such scripts
  - :-) - on 2009-08-13
  Add Sticky Note
- that will determine the startup class name
- a Universal binary containing, say, Tiger and Leopard versions
- simplify code creation and maintenance.
- Consider a 2-way fat binary containing i386 and x86_64 architectures.
- operating system versions in addition to processor architectures.
  - :-) - on 2009-08-13
  Add Sticky Note
- Now think of an "extended" fat binary mechanism that incorporates
- Bonus Feature: Extra Fat Binaries
- our hypothetical extended fat binary contains eight "architectures"
- Since XBinary is experimental, why not experiment with such a feature too?
- the extended fat feature as implemented by XBinary is not a complete implementation
- choosing the best library from an extended fat library file.
- XBinary requires Mac OS X 10.5.x (Leopard).
- XBinary wouldn't be able to help the dynamic linker

26 Jul 09

About us: Universal media browser connecting all devices | doubleTwist

… create a unifying media platform that connects consumers with all their media and all their devices, regardless of whether they are online or offline.

www.doubletwist.com/...AboutUs.dt - Preview

doubleTwist vision principle universal playful friendly simple open online offline format 2009

backed by several prominent venture capital firms and individual investors
people from eight countries, speaking more than seven different languages, from Japanese to Dutch
10 more annotations...
- more than 200 gadgets
- obsessively test every single one of them with doubleTwist
- sending stuff to each other and to our friends and families around the world
- connects consumers with all their media and all their devices
- unifying media platform
- simple
- shouldn't have to use iTunes for Apple products, Nokia software for Nokia phones, Sony software for Sony products, etc.
- online or offline
- a need for a simple and powerful software that connects them
- 1 Universal.
  
  We are open to any device, content or network.
  2 Playful.
  
  We always work so you can play.
  3 Friendly.
  
  We believe using different devices, formats, or networks shouldn't ruin a good friendship.
  4 Simple.
  
  We do not sacrifice ease of use as we let you do more.

25 Jul 09

Webarchive - Wikipedia, the free encyclopedia

A handy starting point for anyone interested in WebArchive format. As Wikipedia necessarily excludes many external links, you should look elsewhere for broader summaries. See for example http://www.diigo.com/list/grahamperrin/webarchive?v=p

en.wikipedia.org/Webarchive - Preview

WebArchive format class WebKit framework open source 2009

I edited this page extensively in June/July 2009. - grahamperrin on 2009-07-25

a platform-independent file format for rich web content
a class within a software framework
21 more annotations...
- WebArchive: the format
- contains the main resource, as well as the subresources and subframes of the main resource
- The main resource can be an entire webpage
- a portion of a webpage
- some other kind of data
- Supporting applications, classes, commands and operating systems
- Mac OS X
  - An application that is not normally thought of as a producer of WebArchive files can easily send or receive WebArchive data. - on 2009-06-30
  - The operating system provides System Services support for interapplication communication of WebArchive data. - on 2009-06-30
  Add Sticky Note
- Safari
- in Mac OS X
- Safari version 4 and later for Windows
  - Safari (for Windows and in Mac OS X) is probably the best known application for production of files in WebArchive format. - on 2009-06-30
  Add Sticky Note
- Conversions
- XML to binary
- Binary to XML
- WebArchive to files
- WebArchive to PDF
- WebArchive to KDE WAR
- WebArchive: the class
- within the open source WebKit project
- to archive webpages
- place a portion of a webpage on the pasteboard
- represent rich web content in any application

File Format Cloud

www.fileformat.info/...cloud.htm - Preview

file format cloud technology 2009

This site offers many useful references to third party resources relating to the formats. - grahamperrin on 2009-07-25

A-Z Index
Total Formats: 567
1 more annotations...
- Printer friendly

02 Jul 09

Firefox Updated

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Mozilla open video format Mozilla Firefox 2009

Safari on Mac OS X seems to work equally well with the .ogg example offered here. - grahamperrin on 2009-07-02

the first browser to support open video formats
- Highlights at http://www.diigo.com/bookmark/http%3A%2F%2Fwww.theregister.co.uk%2F2009%2F07%2F08%2Fhtml_5_media_spec include:
  
  > Apple refused to implement Ogg Theora in QuickTime
  
  Maybe I have Perian to thank for my viewing experience. - on 2009-07-09
- Was Firefox truly the first?
  
  Safari 4 plays the video without plug-ins:
  
  http://www.wuala.com/grahamperrin/public/2009/07/02/safari/ - on 2009-07-02
Add Sticky Note
Watch This!
- http://www.wuala.com/grahamperrin/public/2009/07/02/vlc-001.png/ - on 2009-07-02
- It's an .ogg file:
  
  * 5.7 MB
  * theo codec for video
  * vorb codec for audio - on 2009-07-02
Add Sticky Note
3 more annotations...
- open video formats
- without requiring a plug-in
- give it a try
  - I tried it in Safari on Mac OS X. Nice. - on 2009-07-02
  - I tried it in OmniWeb on Mac OS X. Nice. - on 2009-07-02
  - I tried it in Firefox 3.5 on Mac OS X. Nice. - on 2009-07-02
  Add Sticky Note

30 Jun 09

23 Jun 09

Yahoo! Search Blog » Blog Archive » New Common Tag Format

www.ysearchblog.com/...new-common-tag-format - Preview

Common Tag tag format Yahoo! search concept URI 2009

announcing our support of Common Tag
At Yahoo! Search, we’re proponents of open formats that accelerate the structuring of the Web
1 more annotations...
- we would like to encourage site owners to tag with URIs of concepts

22 Jun 09

Common Tag Standard is released! « Faviki Blog

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Common Tag format RDF-A open standard semantic Faviki Zigtag Zemanta Sindice.com Yahoo Google 2009

Common Tag format is based on RDFa
The format uses the URIs of concepts defined on the Web
6 more annotations...
- Common concepts
- controlled vocabularies
- databases of structured content
- Freebase and DBpedia
- Common Tag is based on a small vocabulary
- subclasses and optional properties

Web Companies Develop Common Tag Format

www.prweb.com/...prweb2522914.htm - Preview

Common Tag format RDF-A open standard semantic Faviki Zigtag Zemanta Sindice.com Yahoo Google 2009

With Common Tag, content is tagged with unique, well-defined concepts
metadata that defines each concept
23 more annotations...
- describes how the concepts relate
- Semantic tagging is an important next step
- more intelligent applications for aggregating, searching, and browsing
- Using the Common Tag format
- a range of services that help publishers and bloggers
- a standard and extensible set of tags
- tools to relate those tags to web page content
- services that help users discover tagged content
- automated tagging tools like those offered by Zemanta
- discoverable through a single tag
- More discoverable
- Social tagging services like Faviki and Zigtag
- allow end users to tag content using the Common Tag format
- Services like DERI's Sindice.com provide developers with tools to find and incorporate related content into their applications using Common Tag
- Yahoo and Google have begun reading RDFa--the markup standard used by the Common Tag format
- More connected
- Common Tag metadata connects concepts
- AdaptiveBlue's Glue service plans to use the Common Tag format to help connect end users to other people with similar interests and to other related content
- a developer might use Freebase's development tools
- to create a simple application that takes an article
- and allows users to
- More engaging
- directly within the article