Example
We use arithmetic expressions as an example. First we provide a simplified BNF grammar:
This grammar can also be expressed in EBNF:
expression = term, {"+", term}; term = factor, {"*", factor}; factor = constant | variable | "(", expression, ")"; variable = "x" | "y" | "z"; constant = digit, {digit}; digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9";One possible set of syntax diagrams for this grammar is:
Read more about this topic: Syntax Diagram
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