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London Ruby User Group:Treetop

Treetop
Roland Swingler has been looking at Treetop. Regular expressions are great but they're unreadable when complex, and there are some things they just can't do. The alternative is to build a language parser - but that's really hard, isn't it? In this talk, I'll try and dispell that idea and show how building little languages in ruby is really simple. I'll show two examples: defining a mini-language from scratch to build XMPP bots, and using it as part of your screen-scraping toolbox.

ABOUT ROLAND SWINGLER

Roland Swingler is an Associate at CHP Consulting. His Specialties are: Ruby, Java, JavaScript. PHP, but it has been a while since I have used it. Full Stack Developer.
More about Roland Swingler

ABOUT THE LONDON RUBY USER GROUP

LRUG is the London Ruby User Group; a community of ruby developers based in and around London. We meet up at least once a month; on the 2nd Wednesday of the month we have meetings with talks, demos and such-like and then we have pub-based meetups organised on an ad-hoc basis (roughly half-way between meetings).
More about the London Ruby User Group

PODCAST TREETOP

This session took part at the LRUG May. You can view the other 2 podcasts here.

JAVASCRIPT & HTML5 COURSES

	BRIAN SLETTEN'S SEMANTIC WEB BOOTCAMP
	CHRISTOPHE HERREMAN'S SPRING ACTIONSCRIPT COURSE
	DAMJAN VUJNOVIC'S ADVANCED JAVASCRIPT WORKSHOP
	DAVID A. BLACK'S RUBY BOOTCAMP
	DAVID POLLAK'S LIFT BASICS
	DMITRY BUZDIN'S ADVANCED GOOGLE WEB TOOLKIT
	DYLAN SCHIEMANN'S DOJO APP DEVELOPMENT WORKSHOP
	DYLAN SCHIEMANN'S RICHER WEB EXPERIENCES WITH DOJO
	MARK BIRBECK'S RDFA THEORY AND PRACTICE
	MATTHEW BAXTER-REYNOLDS' PHONEGAP COURSE
	PETER LUBBERS' HTML5 FAST TRACK COURSE
	PETER LUBBERS' HTML5 PERFORMANCE & WEBSOCKETS
	PETER LUBBERS' HTML5 “FAST TRACK”
	RUSSEL WINDER'S PYTHON WORKSHOP
	TYPESAFE'S FAST TRACK TO PLAY

JAVASCRIPT & HTML5 PODCASTS

	High Performance Python Russel Winder : 31st Jan 2012
	What's happening in Wordpress Chris Adams : 19th Jan 2012
	Wordpress Responsive Design Mark Mitchell : 19th Jan 2012
	Scaling WordPress Peter Westwood : 19th Jan 2012
	HTML5 & Android Webview Dave Springgay : 19th Jan 2012
	Titatnium & PhoneGap... Jonathan Anthony : 19th Jan 2012
	Trends & Patterns Andy Richardson : 10th Jan 2012
	I18n Chris McGrath : 9th Jan 2012
	Judge Joe Corcoran : 9th Jan 2012
	BrowserID Christian Heilmann : 13th Dec 2011
	Usable APIs : 12th Dec 2011
	HATEOS : 12th Dec 2011
	Heroku platform Chris O Davies : 5th Dec 2011
	Deploying Java Apps to Heroku Nicola Tassini : 5th Dec 2011
	The Why, What and How of Heroku John Beynon : 5th Dec 2011

OTHER JAVASCRIPT & HTML5 EVENTS

	Official RNIB Accessibility Hackathon CONFERENCE (2 DAYS) London, Saturday, February 11th BOOK NOW!
	Russel Winder's Python Workshop 4 DAY COURSE. Featuring Russel Winder London, Monday, February 13th
	Coding Kata FREE EVENT: In The Brain of Damjan Vujnovic London, Wednesday, February 15th
	London Ruby User Group FREE EVENT: LRUG lightning London, Tuesday, February 21st
	QCon London 2012 CONFERENCE (3 DAYS) London, Wednesday, March 7th BOOK NOW!
	Elevate Events FREE EVENT: elevate-launch-event London, Wednesday, March 7th
	London Ajax User Group FREE EVENT: Dart London, Tuesday, March 13th
	Peter Lubbers' HTML5 Fast Track Course 2 DAY COURSE. Featuring Peter Lubbers New York, Wednesday, March 14th