Module: I18nLink::Helper

Includes:
ActionView::Helpers::UrlHelper, ERB::Util
Defined in:
lib/i18n_link/helper.rb

Instance Method Summary collapse

Instance Method Details



8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
 
# File 'lib/i18n_link/helper.rb', line 8

def t_link(translation, options = {})
  options.symbolize_keys!
  string = String.new(h(t(translation))) # We want an escaped String, not an ActiveSupport::SafeBuffer

  # Resolve the inner interpolations of nested interpolations
  string.gsub!(/(%\{[^}]+:[^}]*)(%\{[^}]+\})([^}]*\})/) do |tl|
    token = $2[2..-2].to_sym
    if options.has_key?(token)
      "#{$1}#{options[token]}#{$3}"
    else
      tl
    end
  end
  
  # Parse links
  string.gsub!(/%\{[^}]+\}/) do |tl|
    if tl.include?(":")
      token, label = tl[2..-2].split(":", 2)
      addr = options.delete(token.to_sym)
      if addr.nil?
        tl
      else
        link_options = options.delete("#{token}_options".to_sym)
        link_to(raw(label), addr, link_options)
      end
    else
      tl
    end
  end
  
  # Escape HTML of the replacements and interpolate
  options.each { |key, value| options[key] = (value.is_a?(String) && !value.html_safe?) ? h(value) : value }
  raw(string % options)
end