Module: Slim::Embedded::Minify::Javascript

Includes:
Tag
Included in:
JavaScriptEngine
Defined in:
lib/slim/embedded/minify/javascript.rb

Instance Method Summary collapse

Instance Method Details

#on_slim_embedded(engine, body, attrs) ⇒ Object 



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# File 'lib/slim/embedded/minify/javascript.rb', line 9

def on_slim_embedded(engine, body, attrs)
  minified_body = minify(body)
  super(engine, minified_body, attrs)
end

#remove_comments!(line) ⇒ Object 



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# File 'lib/slim/embedded/minify/javascript.rb', line 14

def remove_comments!(line)
  need_deletion = false
  need_deletion_all = false
  escaped = false
  escaped_backslash = false
  inside_char = nil
  line[-1] = line.last.chars.each_with_index.map do |char, index|
    next if need_deletion_all

    if char == "/" && next_char(line, index) == "*" && inside_char.nil?
      if remaining_string_range(line, index).include?("*/")
        need_deletion = true
        next
      end
    elsif char == "/" && prev_char(line, index) == "*" && inside_char.nil? && need_deletion
      need_deletion = false
      next
    elsif char == "/" && next_char(line, index) == "/" && inside_char.nil? && !need_deletion
      need_deletion_all = true
      next
    elsif char == "\\" && next_char(line, index) == "\\" && inside_char
      escaped_backslash = true
      next char
    elsif char == "\\"
      if ["'", '"'].include?(next_char(line, index)) && inside_char == next_char(line, index) && !escaped_backslash
        escaped = true
      end
      escaped_backslash = false
      next char
    elsif ["'", '"'].include?(char) && !need_deletion
      if inside_char == char
        inside_char = nil unless escaped
        escaped = false
        next char
      end

      inside_char = char if inside_char.nil?
    end
    char if !need_deletion || inside_char
  end&.compact&.join
end