Chris@0: Mathematical operators
Chris@0: -----
Chris@0: <?php
Chris@0: 
Chris@0: // unary ops
Chris@0: ~$a;
Chris@0: +$a;
Chris@0: -$a;
Chris@0: 
Chris@0: // binary ops
Chris@0: $a & $b;
Chris@0: $a | $b;
Chris@0: $a ^ $b;
Chris@0: $a . $b;
Chris@0: $a / $b;
Chris@0: $a - $b;
Chris@0: $a % $b;
Chris@0: $a * $b;
Chris@0: $a + $b;
Chris@0: $a << $b;
Chris@0: $a >> $b;
Chris@0: $a ** $b;
Chris@0: 
Chris@0: // associativity
Chris@0: $a * $b * $c;
Chris@0: $a * ($b * $c);
Chris@0: 
Chris@0: // precedence
Chris@0: $a + $b * $c;
Chris@0: ($a + $b) * $c;
Chris@0: 
Chris@0: // pow is special
Chris@0: $a ** $b ** $c;
Chris@0: ($a ** $b) ** $c;
Chris@0: -----
Chris@0: array(
Chris@0:     0: Expr_BitwiseNot(
Chris@0:         expr: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         comments: array(
Chris@0:             0: // unary ops
Chris@0:         )
Chris@0:     )
Chris@0:     1: Expr_UnaryPlus(
Chris@0:         expr: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:     )
Chris@0:     2: Expr_UnaryMinus(
Chris@0:         expr: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:     )
Chris@0:     3: Expr_BinaryOp_BitwiseAnd(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:             comments: array(
Chris@0:                 0: // binary ops
Chris@0:             )
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: b
Chris@0:         )
Chris@0:         comments: array(
Chris@0:             0: // binary ops
Chris@0:         )
Chris@0:     )
Chris@0:     4: Expr_BinaryOp_BitwiseOr(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: b
Chris@0:         )
Chris@0:     )
Chris@0:     5: Expr_BinaryOp_BitwiseXor(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: b
Chris@0:         )
Chris@0:     )
Chris@0:     6: Expr_BinaryOp_Concat(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: b
Chris@0:         )
Chris@0:     )
Chris@0:     7: Expr_BinaryOp_Div(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: b
Chris@0:         )
Chris@0:     )
Chris@0:     8: Expr_BinaryOp_Minus(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: b
Chris@0:         )
Chris@0:     )
Chris@0:     9: Expr_BinaryOp_Mod(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: b
Chris@0:         )
Chris@0:     )
Chris@0:     10: Expr_BinaryOp_Mul(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: b
Chris@0:         )
Chris@0:     )
Chris@0:     11: Expr_BinaryOp_Plus(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: b
Chris@0:         )
Chris@0:     )
Chris@0:     12: Expr_BinaryOp_ShiftLeft(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: b
Chris@0:         )
Chris@0:     )
Chris@0:     13: Expr_BinaryOp_ShiftRight(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: b
Chris@0:         )
Chris@0:     )
Chris@0:     14: Expr_BinaryOp_Pow(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: b
Chris@0:         )
Chris@0:     )
Chris@0:     15: Expr_BinaryOp_Mul(
Chris@0:         left: Expr_BinaryOp_Mul(
Chris@0:             left: Expr_Variable(
Chris@0:                 name: a
Chris@0:                 comments: array(
Chris@0:                     0: // associativity
Chris@0:                 )
Chris@0:             )
Chris@0:             right: Expr_Variable(
Chris@0:                 name: b
Chris@0:             )
Chris@0:             comments: array(
Chris@0:                 0: // associativity
Chris@0:             )
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: c
Chris@0:         )
Chris@0:         comments: array(
Chris@0:             0: // associativity
Chris@0:         )
Chris@0:     )
Chris@0:     16: Expr_BinaryOp_Mul(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:         )
Chris@0:         right: Expr_BinaryOp_Mul(
Chris@0:             left: Expr_Variable(
Chris@0:                 name: b
Chris@0:             )
Chris@0:             right: Expr_Variable(
Chris@0:                 name: c
Chris@0:             )
Chris@0:         )
Chris@0:     )
Chris@0:     17: Expr_BinaryOp_Plus(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:             comments: array(
Chris@0:                 0: // precedence
Chris@0:             )
Chris@0:         )
Chris@0:         right: Expr_BinaryOp_Mul(
Chris@0:             left: Expr_Variable(
Chris@0:                 name: b
Chris@0:             )
Chris@0:             right: Expr_Variable(
Chris@0:                 name: c
Chris@0:             )
Chris@0:         )
Chris@0:         comments: array(
Chris@0:             0: // precedence
Chris@0:         )
Chris@0:     )
Chris@0:     18: Expr_BinaryOp_Mul(
Chris@0:         left: Expr_BinaryOp_Plus(
Chris@0:             left: Expr_Variable(
Chris@0:                 name: a
Chris@0:             )
Chris@0:             right: Expr_Variable(
Chris@0:                 name: b
Chris@0:             )
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: c
Chris@0:         )
Chris@0:     )
Chris@0:     19: Expr_BinaryOp_Pow(
Chris@0:         left: Expr_Variable(
Chris@0:             name: a
Chris@0:             comments: array(
Chris@0:                 0: // pow is special
Chris@0:             )
Chris@0:         )
Chris@0:         right: Expr_BinaryOp_Pow(
Chris@0:             left: Expr_Variable(
Chris@0:                 name: b
Chris@0:             )
Chris@0:             right: Expr_Variable(
Chris@0:                 name: c
Chris@0:             )
Chris@0:         )
Chris@0:         comments: array(
Chris@0:             0: // pow is special
Chris@0:         )
Chris@0:     )
Chris@0:     20: Expr_BinaryOp_Pow(
Chris@0:         left: Expr_BinaryOp_Pow(
Chris@0:             left: Expr_Variable(
Chris@0:                 name: a
Chris@0:             )
Chris@0:             right: Expr_Variable(
Chris@0:                 name: b
Chris@0:             )
Chris@0:         )
Chris@0:         right: Expr_Variable(
Chris@0:             name: c
Chris@0:         )
Chris@0:     )
Chris@0: )