Robert Boone rlb3

Emacs learning curve?

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Assumptions

Mix of Emacs geeks skewed towards people who’ve been using this for a while (after all, takes a certain commitment to come all the way to an Emacs conference!)

Outcomes

Jim Weirich:

This is how I explain it… Ruby has Procs and Lambdas. Procs are created with Proc.new { }, lambdas are created with lambda {} and ->() {}.

In Ruby 1.8, proc {} creates lambda, and Ruby 1.9 it creates procs (don't ask).

Lambdas use method semantics when handling parameters, procs use assignment semantics when handling parameters.

This means lambdas, like methods, will raise an ArgumentError when called with fewer arguments than they were defined with. Procs will simply assign nil to variables for arguments that were not passed in.

	(require 's)
	(defun rlb3/toggle-file ()
	(interactive)
	(let* ((full-path (buffer-file-name))
	(path (rlb3/remove-ulc full-path))
	(file-type (rlb3/determine-file-type path)))
	(if (eq file-type 'test)
	(rlb3/jump-to-related-test path)
	(rlb3/jump-to-related-module path))))

	(eval-when-compile (require 'cl))
	(require 'json)
	(require 'url)
	(require 'url-http)

	(defgroup cpanel nil
	"cPanel customization group"
	:group 'cpanel
	:prefix "cpanel-")

	(require 'multiple-cursors)
	(global-set-key (kbd "C-c C-e") 'mc/edit-lines)
	(global-set-key (kbd "C-c C-f") 'mc/mark-next-like-this)
	(global-set-key (kbd "C-c C-b") 'mc/mark-previous-like-this)
	(global-set-key (kbd "C-c C-x f") 'mc/mark-all-like-this)

	(require 's)

	(defun rlb3/toggle-related-file ()
	(interactive)
	(let* ((full-path (buffer-file-name))
	(path (rlb3/remove-ulc full-path))
	(file-type (rlb3/determine-file-type path)))
	(if (eq file-type 'test)
	(rlb3/jump-to-related-module path)
	(rlb3/jump-to-related-test path))))

	(defun show-frame (&optional frame)
	(raise-frame)
	(select-frame-set-input-focus (selected-frame))
	(select-frame-set-input-focus (selected-frame)))

	#!/usr/bin/env perl

	use strict;
	use warnings;

	my $pid = $ARGV[0];
	my $file = '/tmp/logfile.log';

	open my $fh, '<', $file;
	while (pid_exists()){

	#!/usr/bin/env ruby

	class MyObject
	def initialize
	ObjectSpace.define_finalizer(self, proc { destroy })
	end

	def start
	puts 'start'
	end