[Bug-apl] Overbar not allowed in Gnu APL variable names but is in ISO/IEC 13751:2000(E)

[Frederick H. Pitts]

Gentle persons,

        On page 41 of ISO/IEC 13751:2000(E), the literal-identifier (which is
the same thing as a variable name) is defined to be composed of a letter
followed by zero or more letters, digits, underbars and overbars.  The
overbar is also used to distinguish negative numbers per the standards
document.

        When I attempt to use the overbar in a variable name in Gnu APL, svn
116, a SYNTAX ERROR is reported.

        I have to admit I've never seen the overbar used in an APL variable
name.  On the other hand, having more symbols to chose from when one is
creating variable names is a plus for me.  I am pleased to find that the
standalone alpha and omega symbols can be used as variable name.

Regards,

Fred