> $^x is a syntax error, and not $x.
> $^x would be "whatever $ is" concatenated with literal "x"
> but "$" by itself is a syntax error
That's my point!
$-fu should be a syntax error, because is (our should be) equivalent
to $^-fu, an incorrect expression.
>From rc(1)
[...]
If an unquoted word immediately follows a $ and contains a
character other than an alphanumeric, underscore, or *, a ^ is inserted
before the first such character.
[...]
But rc, I suppose, skip the first char next to $ in the search of a not
alphanumeric, not * ... character.
If this is not a bug, but a feature, then it must be explained in rc(1), and
for me, all the contiguous
characters of the same type (c>' ' &&
!strchr("!\"#$%&'()+,-./:;<=>?@[\\]^`{|}~", c)) should be skipped too,
so $--fu would be also correct.
For me the best is making $-fu a syntax error, and let the programmer decide if
such an awkward name is
worthy of typing quotes everywhere.
trebol
