Re: lexing

[Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>]

On Nov 29,  8:47pm, Ray Andrews wrote:
}
}     $(( ##\e )) is 27,
}     (( #VAR ))
}     $(( #var ))
} 
} ... but, given that there is preceding whitespace, would these three not 
} break Bart's rule? Perhaps the whitespace here is does not qualify as 
} 'word separating'?  Or is the " $(()) " construct an exception?

The whitespace is not "word separating" because (( stuff )) is shorthand
for 
    let "stuff"
so the spaces are quoted, at the level at which comments apply.  $(( ))
is just a way to substitute inline the "let".