Escape symbol
Backslash ( \ ) is the escape character of Genero BDL.
The Genero BDL compiler treats a backslash ( \ ) as the default escape symbol,
and treats the immediately following symbol as a literal, except for special characters such as
\r or \t.
To specify anything that includes a literal backslash, enter double
( 
\\ ) backslashes wherever a single backslash is
required. Similarly, use \\\\ to represent a literal
double backslash.MAIN
  DISPLAY "\a"   -- displays a
  DISPLAY "\r"   -- displays CR
  DISPLAY "\n"   -- displays NL
  DISPLAY "\ta"  -- displays <tab>a
  DISPLAY "\\"   -- displays \
  DISPLAY "\\\\" -- displays \\
END MAIN