exp1
p1 = exp1(vp, ignore);
p2 = exp1(vp, (ignore & IGNORE) || !p1);
static int exp1(Char ***, int);
v = ldexp(table->x, table->exp1);
int exp1;
expected1(tok_kind exp1)
error("Expected '%s'", toktostr(exp1));
expected2(tok_kind exp1, tok_kind exp2)
toktostr(exp1),
expected3(tok_kind exp1, tok_kind exp2, tok_kind exp3)
toktostr(exp1),