Method: IsoDoc::Function::References#bracket_if_num

Defined in:
lib/isodoc/function/references.rb

#bracket_if_num(num) ⇒ Object 



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# File 'lib/isodoc/function/references.rb', line 66

def bracket_if_num(num)
  return nil if num.nil?

  num = num.text.sub(/^\[/, "").sub(/\]$/, "")
  return "[#{num}]" if /^\d+$/.match?(num)

  num
end