class Asciidoctor::Reader

Returns nothing.

line_to_restore - the line to restore onto the stack

processed immediately.
not otherwise contain preprocessor directives. Therefore, it is marked as
method assumes the line was previously retrieved from the reader or does
A line pushed on the reader using this method is not processed again. The

Public: Push the String line onto the beginning of the Array of source data.

def unshift_line line_to_restore
  unshift line_to_restore
  nil
end