Class: Starter::Markdown::CodeEmbedder

Inherits:
Object
  • Object
show all
Defined in:
lib/starter/markdown/extender.rb

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ CodeEmbedder

Returns a new instance of CodeEmbedder.



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# File 'lib/starter/markdown/extender.rb', line 38

def initialize(options={})
  @regex = %r{^```([^\s#]+)(#L(\S+))?\s*```$}
end

Instance Method Details

#process(lines) ⇒ Object 



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# File 'lib/starter/markdown/extender.rb', line 43

def process(lines)
  # TODO: handle URLs
  out = []
  lines.each do |line|
    if md = @regex.match(line)
      _full, source_path, badline, line_spec = md.to_a
      if line_spec
        start, stop = line_spec.split("-").map { |s| s.to_i}
      else
        start = 1
      end

      source_path = File.expand_path(source_path).strip
      extension = File.extname(source_path)
      out << "```#{extension}"

      embed = []
      File.open(source_path, "r") do |source|
        source.each_line do |line|
          embed << line
        end
      end
      start -= 1
      if stop
        stop -=1
      else
        stop = embed.size - 1
      end
      out << embed.slice(start..stop).join()
      out << "```\n"
    else
      out << line
    end
  end
  out
end