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Sat Dec 22 00:30:00 2012

Slides for the talk catching-a-std at yapc-eu-2009

Catching
a ::Std

-

BBC

-

Film
at 11

-

Matthew
Stephen
Trout

-

Alumnus of
the Open
University

-

Pure
Mathematics

-

Shadowcat Systems Limited
http://shadowcat.co.uk/

-

Lancaster,
North West
England

-

Architecture
and process
management

-

ARPAnet and the
World Wide Web

-

Destruction
testing

-

RDBMS
OO models
social
tolerances

-

Collaboration

-

Lunatics
Landlords
Volunteers

-

-

Standardisation
in the perl
community

-

What is a
standard?

-

IETF

-

RFC

-

MUST
SHOULD
MAY

-

TCP/IP
over avian
carrier

-

-

What -is-
a standard?

-

Specification

-

Multiple
Implementations

-

One
Way

-

One
(True?)
Way

-

-

Standards
and
Language

-

Received
Pronunciation

-

OED

-

Webster

-

Dialects

-

Same grammar
Different
semantics

-

NPW

-

Scandiwegians
are confusing

-

Mutually
Intelligible

-

Ssyshere

-

-

Standards
in perl?

-

Well ...

-

"whatever the
interpreter does"

-

"whatever the
tests say"

-

(so write more
tests for
smartmatch
dammit!)

-

Standards
for writing
perl code?

-

TMTOWTDI

-

*sigh*

-

TMTOWTDI
BSCIAGTT

-

"timtoady
bicarbonate"

-

(FFS somebody
come up with
a better name)

-

-

Approaches to
standardisation

-

Inferred
Invented
Enforced
Evolved

-

Inferred

-

UUCP

-

perl

-

Invented

-

TCP/IP

-

IMAP

-

Enforced

-

Java
JCP

-

SMB

-

Evolved

-

POSIX

-

LSB

-

Scheme

-

-

Standards
and perl6

-

I'm a
skeptic

-

... of perl6
the production
implementation

-

I love perl6 the
language design
research project

-

Inferred
from perl

-

Invented
by @Larry

-

Enforced
by the
standard
grammar

-

Evolved based
on implementation
and use attempts

-

-

"best
practices"

-

PBP

-

inventing
standards

-

Class::Std

-

ARGH

-

"your code
caught a
::Std"

-

What is
an STD?

-

Sexually
Transmitted
Disease

-

Maladie
Sexuelle
Transmitee

-

Socially
Transmitted
Disease

-

Cargo
culting

-

Cargo
culting
gone
*good*?

-

Veni
Vidi
Vici

-

Vici
Veni
VD

-

-

STDs and
the perl
community

-

Why did
Class::Std
fail?

-

Damian
ran out
of tuits

-

but ...

-

Revolution

-

Incompatible

-

Needed
everybody
to move

-

Unperlish?

-

Class::Std
and
Catalyst

-

They came
I saw

-

I threw up
in my mouth
a little

-

CGI::Application

-

too little
standard

-

plugins
are a free
for all

-

cohesion
failure

-

Maypole

-

sane
API

-

tight
coupling

-

TT
Class::DBI

-

Class::DBI
imploded

-

Maypole
died

-

Catalyst

-

request cycle
plugin API

-

100+
plugins

-

all play
nice together

-

trivial
component
API

-

100+
components

-

all play
nice together

-

Just Enough
Standard

-

Class::DBI
->
DBIx::Class

-

DBIx::Class

-

people
deployed
trunk

-

we went
stable

-

I fought
against
it being
"the standard"

-

... until the
Catalyst user
base voted
with their feet

-

Standards by
social
transmission

-

Enlightened Perl
Extended Core

-

Next Talk.
This Room.

-

evolved from
"what do the
experts consider
their standard
toolkit?"

-

One
True
Way?

-

One
Good
Way

-

(Jesse made
us add
Catalyst)

-

beware the
cargo cult

-

the most
popular
plugins

-

become the
template

-

Catalyst
DBIC model

-

same hacks
copied
EVERYWHERE

-

RKITOVER
rewrote
it to be
beautiful

-

Devel::Declare

-

3 method
signatures
systems

-

evolving
through
(ab)use

-

5core later
by consensus?

-

perl5i
Modern::Perl

-

I may build
a third one

-

or just
annoy
Schwern

-

Moose

-

I almost
moved to
python

-

but I knew
perl was
capable of
awesome

-

Moose
implements
that
awesome

-

huge
adoption

-

beautiful
code

-

contagious
meme

-

passing
Class::Accessor

-

we don't want
to be in core

-

all these
standards
will be
obsoleted

-

DBIx::Class

-

Fey::ORM

-

DBIx::Class

-

Catalyst

-

HTTP::Engine
Path::Dispatcher
Bread::Board

-

Catalyst

-

sorry for
using my
favourite
projects

-

they're the
examples
I know

-

the principles
are general

-

Catch an
STD today

-

STDs are
for life

-

not just for
christmas

-

these slides
will be on
http://shadowcat.co.uk/

-

Any Questions?
http://shadowcat.co.uk/

-

Thank You
http://shadowcat.co.uk/