Module: MotionMarkdownItPlugins::EmojiPlugin::NormalizeOpts

Included in:
MotionMarkdownItPlugins::Emoji
Defined in:
lib/motion-markdown-it-plugins/emoji/plugin/normalize_opts.rb

Instance Method Summary collapse

Instance Method Details

#normalize_opts(options) ⇒ Object 



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# File 'lib/motion-markdown-it-plugins/emoji/plugin/normalize_opts.rb', line 10

def normalize_opts(options)
  emojies   = stringify_keys(options[:defs])
  shortcuts = stringify_keys(options[:shortcuts])

  # Filter emojies by whitelist, if needed
  if options[:enabled].length > 0
    emojies = emojies.keys.reduce({}) do |acc, key|
      if options[:enabled].include?(key)
        acc[key] = emojies[key]
      end

      acc
    end
  end

  # Flatten shortcuts to simple object: { alias: emoji_name }
  shortcuts = shortcuts.keys.reduce({}) do |acc, key|
    # Skip aliases for filtered emojies, to reduce regexp
    next acc if !emojies[key]

    if shortcuts[key].is_a?(Array)
      shortcuts[key].each do |alias_value|
        acc[alias_value] = key
      end
      next acc
    end

    acc[shortcuts[key]] = key
    acc
  end

  # Compile regexp
  names = emojies.keys
                .map { |name| ':' + name + ':' }
                .concat(shortcuts.keys)
                .sort
                .reverse
                .map { |name| quoteRE(name) }
                .join('|')

  scanRE    = Regexp.new(names)
  replaceRE = Regexp.new(names)

  return {
    defs:       emojies,
    shortcuts:  shortcuts,
    scanRE:     scanRE,
    replaceRE:  replaceRE
  }
end

#quoteRE(str) ⇒ Object 



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# File 'lib/motion-markdown-it-plugins/emoji/plugin/normalize_opts.rb', line 5

def quoteRE(str)
  str.gsub(/([.?*+^$\[\]\\(){}|-])/, '\\\\\1')
end