Controls use of dollar signs ($) in identifiers.
#pragma dollar_identifiers on | off | reset
If you enable this pragma, the compiler accepts dollar signs ($) in identifiers. Otherwise, the compiler issues an error if it encounters anything but underscores, alphabetic, numeric character, and universal characters (\uxxxx, \Uxxxxxxxx) in an identifier.
This pragma does not correspond to any panel setting. To check this setting, use the __option (dollar_identifiers), described in Checking Settings. The default setting is off.