Features

• Non-regex based (except for the split)
• Handles deep nesting of tags
• Generates good html even from bad input

• Easy configuration to add new tags

• Tags supported by default:

p, b, i, u, s, del, ins, ol, ul, li, dl, dt, dd, quote, code, spoiler, url, img, youtube, sub, sup

Usage

BBCoder.new(text).to_html
# or
"[p]my string[/p]".bbcode_to_html

Install

gem install bbcoder

Configuration Examples

BBCoder.configure do
  tag :b, :as => :strong

  tag :sub, :singular => true do
    %(<sub>#{singular? ? meta : content}</sub>)
  end

  tag :sup, :singular => true do
    %(<sup>#{singular? ? meta : content}</sup>)
  end

  tag :ul
  tag :ol
  tag :li, :parents => [:ol, :ul]

  tag :img, :match => /^.*(png|bmp|jpg|gif)$/ do
    %(<a href="#{content}"><img src="#{content}" /></a>)
  end

  tag :code do
    <<-EOS
<div class="bbcode-code #{meta}">
  <pre>#{content}</pre>
</div>
    EOS
  end

  tag :url do
    if meta.nil? || meta.empty?
      %(<a href="#{content}">#{content}</a>)
    else
      %(<a href="#{meta}">#{content}</a>)
    end
  end
end

Options for #tag

• :as (symbol) -> use this as the html element ([b] becomes strong)
• :match (regex) -> convert this tag and its content to html only if the content matches the regex
• :parents ([symbol]) -> ignore this tag if there is no open tag that matches its parents
• :singular (true|false) -> use this if the tag does not require an ending tag

When you pass a block to #tag it is expecting you to return a string. You have two variables available to your block:

• meta -> Everything after the '=' in the opening tag (with [quote="Legendary"] meta returns '"Legendary"' and with [quote] meta returns nil)
• content -> Everything between the two tags (with [b]strong arm[/b] content returns 'strong arm')
• singular? -> Tells you if this tag is being parsed in singular form or if it had an ending tag (affects if content has any data)

Author

Original author: John "asceth" Long