mirror of
https://git.savannah.gnu.org/git/bison.git
synced 2026-03-09 12:23:04 +00:00
f8a710c6f4
It is now possible to introduce precedence groups, with precedence
relationships inside the group, but not with the outside tokens. Ex:
%gprec arith {
%left '+' '-'
%left '*' '/'
%right '^'
}
%gprec {
%left OR
%left AND
}
%left OTHER
%precedence OTHER2
Here, the arithmetical operators (in the "arith" group) can be compared, the
boolean operators can be compared, but OTHER can only be compared to OTHER2.
* src/gram.c, src/gram.h, src/scan-gram.l, src/parse-gram.y: {} blocks after
%gprec are understood by the lexer
* src/parse-gram.y: New syntax
* tests/input.at, tests/regression.at: Fix due to lexer change