I think it might be good to make an exception for <-- when graying out code, for instance here:
i12 : koszul vars R
1 2 1
o12 = R <-- R <-- R
0 1 2
I think it's very rare for someone to intentionally write < before starting comments. It would have to be something really funky like:
if 0 <-- e.g. QQ or CC
char R then print "R has positive characteristic"
Perhaps we could even introduce a new symbol <-- and change the interpreter to not take it as comments. This could be used like map(R <-- S, {...}), but maybe that's too much.
The other instance where things are inadvertently commented are lines involving quotients or fractions:
i20 : R = ZZ/101[x,y]
o20 = R
o20 : PolynomialRing
i21 : describe R
ZZ
o21 = ---[x..y, Degrees => {2:1}, Heft => {1}]
101
Not sure how to exclude this one from comments, but I think it would be worthwhile.
I think it might be good to make an exception for
<--when graying out code, for instance here:I think it's very rare for someone to intentionally write
<before starting comments. It would have to be something really funky like:Perhaps we could even introduce a new symbol
<--and change the interpreter to not take it as comments. This could be used likemap(R <-- S, {...}), but maybe that's too much.The other instance where things are inadvertently commented are lines involving quotients or fractions:
Not sure how to exclude this one from comments, but I think it would be worthwhile.