PPT Slide
C.20
EXAMPLE
BNF grammar for < identifier> constructed
in a top-down manner:
<identifier> : := <alpha> |
<alpha> <anstring>
<anstring> ::= <alpha> | <num> |
<anstring> ( <alpha> | <num> )
<alpha> ::= A | B | C | . . . X | Y | Z |
a | b | c | . . . x | y | z
<num> ::= 0 | 1 | 2 | . . . | 8 | 9
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