Klaas-Jan Stol wrote:
Unless I misunderstood the Yacc/bison manual, the /order/ in which the
operator associativity is declared, defines the precedence, from top to
bottom in increasing order. So:
%left '+' '-'
%left '*' '/' '%'
means that *, / and % take precedence over + and -.
Aye, but the intended semantics for Perl 1 aren't documented outside the
parser, while they are well documented for Perl 5 in perlop.
For a fun bit of trivia, spend some time comparing Perl 1's perl.y and
Perl 5's perly.y. Amazing how much still persists after 20 years.
Allison
