Get Markdown text from Markdown link

markdown_text_from_markdown_link.rb

        def getMarkdownText(str)
          str.gsub %r{
            \[         # Literal opening bracket
              (        # Capture what we find in here
                [^\]]+ # One or more characters other than close bracket
              )        # Stop capturing
            \]         # Literal closing bracket
            \(         # Literal opening parenthesis
              (        # Capture what we find in here
                [^)]+  # One or more characters other than close parenthesis
              )        # Stop capturing
            \)         # Literal closing parenthesis
          }x, '\1'
        end