Arcovion

34 chars:

<v"g()('al')"
,<v!-"'"_
,,_>"o",^@

All of the examples print correctly: g('al') -> gal, g()()()('al') -> goooal etc.

Arcovion

61 chars:

$><<('%f'%gets).gsub(/\d(?=\d{3}+\.)/,'\&,').sub(/\.?0+$/,'')

Handles floats, integers, signed numbers and strings. Also strips trailing zeros and avoids scientific notation.

Arcovion

33 chars for ruby 1.9+:

p [*?A..?Z]-gets.upcase.chars==[]

34 chars another way:

p (?a..?z).grep(/[^#{gets}]/i)==[]

Arcovion

<style>
  .highlight table td {
    padding: 5px;
  }
  .highlight table pre {
    margin: 0;
  }
</style>

<div class="highlight"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1

Arcovion

class Middleman::Extensions::DirManager < Middleman::Extension
  register :dir_manager
  option :dirs, {source: 'pages', destination: '', add: [], remove: ['', 'pages']}

  def manipulate_resource_list resources
    [options.dirs].flatten.each do |opts|
      # Remove pages if specified
      opts[:remove].each do |dir|
        resources.reject! do |page|
          Dir.glob(normalise(dir) + '/*', File::FNM_DOTMATCH).include? page.source_file