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What about associativity?

  • Is 6 / 5 * 4 equal to (6 / 5) * 4 (like Perl) or to 6 / (5 * 4)?
  • Is 2 ** 3 ** 4 equal to (2 ** 3) ** 4 or to 2 ** (3 ** 4) (like Perl)?

Deviances from Perl's behaviour should be documented, IMHO.

For fun since it doesn't really matter, something else to look at is the interaction between unary minus, post- and pre- -decrement and -increment. For example,

  • a---b
  • a----b
  • a-----b

In reply to Re^2: Operator Precedence Parser by ikegami
in thread Operator Precedence Parser by bart

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