Class: Nexmo::Markdown::Utils

Inherits:
Object
  • Object
show all
Defined in:
lib/nexmo_markdown_renderer/filters/utils.rb

Class Method Summary collapse

Class Method Details

.generate_code_block(language, input, unindent, renderer) ⇒ Object 



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# File 'lib/nexmo_markdown_renderer/filters/utils.rb', line 29

def self.generate_code_block(language, input, unindent, renderer)
  return '' unless input
  filename = "#{Nexmo::Markdown::Config.docs_base_path}/#{input['source']}"
  raise "CodeSnippetFilter - Could not load #{filename} for language #{language}" unless File.exist?(filename)

  code = File.read(filename)
  lexer = Nexmo::Markdown::CodeLanguage.find(language).lexer

  total_lines = code.lines.count

  # Minus one since lines are not zero-indexed
  from_line = (input['from_line'] || 1) - 1
  to_line = (input['to_line'] || total_lines) - 1

  code = code.lines[from_line..to_line].join
  code.unindent! if unindent

  code = renderer.post_process(code) if renderer.respond_to?(:post_process)

  formatter = Rouge::Formatters::HTML.new
  formatter.format(lexer.lex(code))
end

.generate_source_url(code) ⇒ Object 



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# File 'lib/nexmo_markdown_renderer/filters/utils.rb', line 4

def self.generate_source_url(code)
  # Source example: .repos/vonage/vonage-java-code-snippets/ExampleClass.java
  # Direct link on GitHub is in form https://github.com/vonage/vonage-java-code-snippets/blob/master/ExampleClass.java
  start_section = 'https://github.com'

  # Insert "blob/master" and strip ".repos"
  repo_path = '\\0blob/master/'
  file_section = code['source'].sub('.repos', '').sub(%r{(-quickstart|-code-snippets|-code-snippets)/}, repo_path)

  # Line highlighting
  line_section = ''
  if code['from_line']
    line_section += "#L#{code['from_line']}"
    if code['to_line']
      # If we've provided a to_line, use that
      line_section += "-L#{code['to_line']}" if code['to_line']
    else
      # By default we read to the end of the file
      line_section += "-L#{File.read("#{Nexmo::Markdown::Config.docs_base_path}/#{code['source']}").lines.count}"
    end
  end

  start_section + file_section + line_section
end