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# Two Go Talks: "Lexical Scanning in Go" and "Cuddle: an App Engine Demo"
1 Sep 2011
Tags: appengine, lexer, talk, video
Summary: Two talks about Go from the Sydney GTUG: Rob Pike explains lexical scanning, and Andrew Gerrand builds a simple real-time chat using App Engine.
OldURL: /two-go-talks-lexical-scanning-in-go-and
Andrew Gerrand
On Tuesday night Rob Pike and Andrew Gerrand each presented at the [Sydney Google Technology User Group](
Rob's talk, "[Lexical Scanning in Go](",
discusses the design of a particularly interesting and idiomatic piece of Go code,
the lexer component of the new [template package.](
.iframe // 345 560
The slides are [available here](
The new template package is available as [exp/template]( in Go release r59.
In a future release it will replace the old template package.
Andrew's talk, "[Cuddle: an App Engine Demo](",
describes the construction of a simple real-time chat application that uses
App Engine's [Datastore](,
and [Memcache]( APIs.
It also includes a question and answer session that covers [Go for App Engine](
and Go more generally.
.iframe // 345 560
The slides are [available here](
The code is available at the [cuddle Google Code project](