Function declarators with empty parentheses is an obsolescent feature in
C99, and it is not clear to me that the standard allows assigning
assigning a function pointer declared in this way to a function declared
In any case, using a union for the functions is just as simple and
enforces that we pass the correct types to the functions.
We just take the raw argument list as is. Using arg.h, arguments
beginning with - would have been "eaten up".
Writing a special "bailout" for arg.h was not a good option,
not because it's not impossible (done in 6 LOC), but because it
is a shoehorning around a corner case present for a few programs
which are broken by design by POSIX.
1) use arg.h
3) **argv to *argv
4) fix test to check if basename(argv0) == "[" but avoid
basename(3p) as it may change the contents of the string
passed to it and I didn't want to make a copy.
It actually makes the binaries smaller, the code easier to read
(gems like "val == true", "val == false" are gone) and actually
predictable in the sense of that we actually know what we're
working with (one bitwise operator was quite adventurous and
should now be fixed).
This is also more consistent with the other suckless projects
around which don't use boolean types.
Evan Gates says:
After writing my own test I checked and sbase already has test. I'm
including a patch to remove test from the TODO. I also noticed that
sbase's test handles a few specific cases incorrectly (documentation
test ! = foo
When there are 3 arguments and the second is a valid binary primary
test should perform that binary test. Only if the second argument is
not a valid binary primary and the first is ! should test negate the
two argument test. I've attached a patch that should fix this.
test ! ! !
test ! ! ! !
When there are 3 arguments and the second is not a valid primary and
the first is !, test should return the negation of the remaining two
argument test. In this case sbase's test works correctly for ! and ! !
but fails afterwards as it's not recursive. I don't yet have a patch
for this but I'm working on one.
Then again both of these areas may be places in which worse is better.