Method: MarkdownLint::Doc#extract_text

Defined in:
lib/mdl/doc.rb

#extract_text(element, prefix = "") ⇒ Object

Extracts the text from an element whose children consist of text elements and other things



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# File 'lib/mdl/doc.rb', line 249

def extract_text(element, prefix="")
  quotes = {
    :rdquo => '"',
    :ldquo => '"',
    :lsquo => "'",
    :rsquo => "'"
  }
  # If anything goes amiss here, e.g. unknown type, then nil will be
  # returned and we'll just not catch that part of the text, which seems
  # like a sensible failure mode.
  lines = element.children.map { |e|
    if e.type == :text
      e.value
    elsif [:strong, :em, :p, :codespan].include?(e.type)
      extract_text(e, prefix).join("\n")
    elsif e.type == :smart_quote
      quotes[e.value]
    end
  }.join.split("\n")
  # Text blocks have whitespace stripped, so we need to add it back in at
  # the beginning. Because this might be in something like a blockquote,
  # we optionally strip off a prefix given to the function.
  lines[0] = element_line(element).sub(prefix, "")
  lines
end