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The syntax of expressions specifies operator precedences according to four classes of operators. The NOT-operator, @-operator, and the unary operators "+" or "-" have the highest binding strength, followed by multiplication operators, addition operators, and finally relational operators. Operators of the same binding strength associate from left to right. For example, x-y-z stands for (x-y)-z.
expr ::= simple_expr relation simple_expr ::= simple_expr simple_expr ::= simple_expr add_operator term ::= term term ::= term mul_operator factor ::= factor factor ::= primary ::= sub_expr ::= sub_expr selector_list sub_expr ::= ( expr ) primary ::= chr_const ::= <integer> ::= <real> ::= <string> ::= set ::= expr_designator ::= proc_designator actual_parameters ::= not factor ::= unary factor ::= @ expr_designator set ::= [ elem_list ] ::= [ ] elem_list ::= elem_list , elem ::= elem elem ::= elem_expr .. elem_expr ::= elem_expr elem_expr ::= expr relation ::= = ::= <> ::= < ::= <= ::= > ::= >= ::= IN ::= IS add_operator ::= + ::= - ::= OR ::= XOR mul_operator ::= * ::= / ::= DIV ::= MOD ::= AND ::= SHL ::= SHR ::= AS not ::= NOT unary ::= + ::= - |
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Canterbury Pascal for JVM (Last documentation update
Sep 02, 2004)
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