October 2005
Intermediate to advanced
489 pages
12h 2m
English
Content preview from Yahoo! HacksBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Program Yahoo! with REBOL
With REBOL, you can build a graphical interface to Yahoo! with minimal code.
Relative Expression-based Object Language (REBOL) is a technology that provides a lightweight method of distributed computing and communication. REBOL is a messaging language, which means it was built specifically to send messages across Internet protocols. REBOL is available for free, and there are two variations available for download:
- REBOL/Core
This is the kernel, the heart of REBOL, with a command-line interface.
- REBOL/View
This is a graphical client version, an extension of REBOL/Core for developers who want to work visually.
This hack creates a simple Yahoo! Image search widget with the REBOL/ View variation. The widget allows you to enter a keyword, display the first image in the results, and navigate between other results with Previous and Next buttons. This type of graphical user interface (GUI), which uses buttons in a familiar desktop-style application, is quite a bit different from the scripting, command-line applications in this book.
To begin, download REBOL/View for your platform at http://www.rebol.com/view-platforms.html. Next, you’ll need to download a modified version of Gavin F. McKenzie’s SAX XML parser at http://premshree.seacrow.com/code/rebol/xml-parse.r/view. Place xml-parse.r in the working directory where you’ll create the widget.
The Code
Unlike with most GUI frameworks, creating GUIs is a breeze in REBOL.
Tip
In the following commented code, note that comments ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.