Class: Fira::Engine

Inherits:
Object
  • Object
show all
Defined in:
lib/fira/engine.rb

Constant Summary collapse

ID_REGEX = 
/ #([^0-9][a-z_A-Z0-9_\-]+)/
CLASS_REGEX = 
/ \.([^0-9][a-z_A-Z0-9_\-]+)/
QUOTE_REGEX = 
/\S+=["']?(?:.(?!["']?\s+(?:\S+)=|[>"']))+.["']?/
TAG_END_REGEX = 
/([\/]?>)/

Instance Method Summary collapse

Instance Method Details

#insert_quotes(_quotes, tag) ⇒ Object 



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# File 'lib/fira/engine.rb', line 67

def insert_quotes(_quotes, tag)
  space = ''
  space = ' ' if _quotes.length > 0
  quotes = _quotes.join(" ")
  tag.sub(TAG_END_REGEX, space + quotes + '\1')
end

#parse_text(text) ⇒ Object 



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# File 'lib/fira/engine.rb', line 13

def parse_text(text)
  output = ""
  tokenizer = HTML::Tokenizer.new(text)
  while token = tokenizer.next
    #if it's an opening tag, analyze it
    if token[0] == "<" and token[token.length - 1] == ">" and token[1] != "/"

      #remove any quotes
      quotes = token.scan(QUOTE_REGEX)
      no_quotes = token.gsub(QUOTE_REGEX, '')

      #find and replace fira ID attributes
      result = no_quotes.sub(ID_REGEX, ' id="\1"')

      #find fira class attributes
      classes = result.scan(CLASS_REGEX)

      if ! classes.empty?
      
        #build an HTML class attribute
        att = 'class="'
      
        classes.each do |cl|
          att += " #{cl[0]}"
        end
        
        att += '"'
        
        #remove the space before the first class
        att = att.sub(/class=" /, ' class="')

        #remove the first fira class attribute
        new_tag = result.sub(CLASS_REGEX, att)
        
        #remove the rest of the fira class attributes
        final_result = new_tag.gsub(CLASS_REGEX, "")

        #add back in the quotes
        final = insert_quotes(quotes, final_result)
      else
        #add back in the quotes
        final = insert_quotes(quotes, result)
      end
        
      output += final

    else
      output += token
    end
  end

  return output
end