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Greasemonkey Hacks
book

Greasemonkey Hacks

by Mark Pilgrim
November 2005
Intermediate to advanced
496 pages
11h 9m
English
O'Reilly Media, Inc.
Content preview from Greasemonkey Hacks

Hack #35. Enter Textile Markup in Web Forms

Add a button to textareas to convert textile input to XHTML.

Textile is a minimalist markup language invented by Dean Allen for his weblog publishing system, Textpattern. Dean originally wrote a Textile-to-XHTML library in PHP. I quickly ported it to Python, and Jeff Minard took my Python version and ported it to JavaScript. Roberto De Almeida hacked together a Greasemonkey script to allow you to enter Textile markup in web forms by calling a CGI script on his server to do the conversion. Then, Phil Wilson improved on Roberto's work by integrating Jeff's JavaScript library, thus making the entire hack self-contained and free of external dependencies.

People ask why I love open source; this hack is why. This script was written by one person, then improved by a second person by integrating code written by a third person, who based his code on the work of a fourth person, who in turn based his code on the work of a fifth person. The end result of this collaboration is that you can write Textile markup in web forms and then convert it to XHTML with a single click. Everything is done locally, and then the form is submitted to the originating site as usual. There are no calls to third-party servers, and the originating site never has to know or care that you originally entered your comments in Textile format. That's just beautiful.

Tip

See a sample of Textile markup at http://textism.com/tools/textile/?sample=2.

The Code

This user script runs on ...

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Publisher Resources

ISBN: 0596101651Errata Page