Martin Kühl mkhl

An Unordered and Incomplete List of Things You Should Probably Never Use/Do in Ruby

(thanks to Zach Drayer and Ben Stiglitz for their feedback)

Don't use the implicit $_ style parameters where any reasonably sane person might expect a parameter, like #puts.
Don't use the string-manipulation methods included in Kernel, like chomp, chop, sub, and gsub. Call them on String instances instead. If you use these methods in combination with $_ style parameters, you are why we can't have nice things.
Don't use callcc, because it's inefficient, leaks like a sieve, and isn't included in most implementations.
Don't call Array#pack or String#unpack to store data. YAML/Marshal are more powerful and miles saner.
Don't use Kernel#test. Come on, this isn't Perl. Compare the fields of File.stat instead.
Don't use Kernel#syscall or IO#syscall. You shouldn't even do this in C.

	;;
	;; Emacs smart tabs functionality
	;; Intelligently indent with tabs, align with spaces!
	;;
	;; Note: Indenting only uses tabs when indent-tabs-mode is non-nil,
	;; otherwise it uses spaces as usual.
	;;
	;; To use: save as smarttabs.el in your .emacs.d directory, and add
	;; "(require 'smarttabs)" to your .emacs file.
	;;

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
	<plist version="1.0">
	<dict>
	<key>author</key>
	<string>Thomas Aylott</string>
	<key>comment</key>
	<string>Thomas Aylott ㊷ subtleGradient.com</string>
	<key>name</key>
	<string>Brilliance Black (Inverted)</string>

	#!/usr/bin/env ruby
	require "rubygems"
	require "mutter"
	require "httparty"

	REMOTE = "origin"
	REPO = `git config --get remote.#{REMOTE}.url`.chomp[/github\.com[\/\:]([^\/]+\/[^\/]+)\.git/, 1]
	USER = `git config --get github.user`.chomp
	TOKEN = `git config --get github.token`.chomp

	/*
	* KVOChangeScope -- Conveniently mark edits for Key-Value Observations in
	* Objective-C++ in custom setters.
	*
	* Example:
	*
	* - (void)setFoo:(id)value {
	* kvo_scoped_change(foo);
	* // your setter code here which might return at any moment
	* }

	(eval-when-compile
	(require 'color-theme))

	(defun color-theme-solarized (mode)
	"Color theme by Ethan Schoonover, created 2011-03-24.
	Ported to Emacs by Greg Pfeil, http://ethanschoonover.com/solarized."
	(interactive "Slight or dark? ")
	(let ((base03 "#002b36")
	(base02 "#073642")
	(base01 "#586e75")

	#!/usr/bin/env ruby
	# -- ruby --

	# This is a fully-functional set of donkey patches that will break
	# Ruby so badly that it makes all of the Ruby Koans pass right out of
	# the box. ALl you need to do is patch edgecase.rb with this line:
	#
	# require File.expand_path(File.dirname(__FILE__) + '/donkey_patches')
	#
	# so it's the first line of the file. Then save this file as

	;;;; qdiff.lisp

	(defpackage #:qdiff
	(:use #:cl)
	(:shadowing-import-from #:ql-dist
	#:name
	#:release
	#:ensure-local-archive-file
	#:base-directory
	#:prefix)