Waldek,
The result is 16, if I put that in an .input file and read that file.
But, honestly, I wouldn't have expected that.
Something like
foo
foo <-- strange that this works here.
foo
foo 1
looks wrong to me. In particular the second foo.
I would be in favour of NOT accepting that input.
As a (human) compiler, I would parse that as follows.
foo {
foo
}
{
foo
{
foo 1
}
}
(Braces as in Aldor)
That would mean foo {foo} {foo {foo 1}} which looks wrong to my eyes.
I never understood the piling rules and, in fact, I am rather unwilling
to learn them. Waldek's example looks unintuitive to me.
Ralf
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