parameters: (s)
docstring: Returns C-style string literal, or NULL if given s is None.
docstring_summary: Returns C-style string literal, or NULL if given s is None.
docstring_tokens: Returns C - style string literal or NULL if given s is None .
function: def ToCppStringLiteral(s):
    """Returns C-style string literal, or NULL if given s is None."""
    if s is None:
      return 'NULL'
  
    if all(0x20 <= ord(c) <= 0x7E for c in s):
      # All characters are in ascii code.
      return '"%s"' % s.replace('\\', r'\\').replace('"', r'\"')
    else:
      # One or more characters are non-ascii.
      return '"%s"' % ''.join(r'\x%02X' % c for c in s.encode('utf-8'))
function_tokens: def ToCppStringLiteral ( s ) : if s is None : return 'NULL' if all ( 0x20 <= ord ( c ) <= 0x7E for c in s ) : # All characters are in ascii code. return '"%s"' % s . replace ( '\\' , r'\\' ) . replace ( '"' , r'\"' ) else : # One or more characters are non-ascii. return '"%s"' % '' . join ( r'\x%02X' % c for c in s . encode ( 'utf-8' ) )