Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Having a hard time understanding the programming language concept in the screenshot. 

 

 

"func" Signature .
Parameters [ Result ] .
Parameters| Type .
= "(" [ ParameterList [
ParameterDecl { "," ParameterDecl }
[ IdentifierList ] [ "..." ] Type
FunctionType
Signature
%3D
Result
%3D
Parameters
] ] ")"
%3D
ParameterList
%D
ParameterDecl
%D
draw a parse tree to show the following string is legal. Start with FunctionType at the
root Make sure you are following the grammar. Remember that each node gets its
children nodes based on one of the above grammar rules. Stop when you reach the end of
these rules and just indicate what replaces any remaining nonterminals (like IdentifierList
and Type)
func (int, int) bool
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Transcribed Image Text:"func" Signature . Parameters [ Result ] . Parameters| Type . = "(" [ ParameterList [ ParameterDecl { "," ParameterDecl } [ IdentifierList ] [ "..." ] Type FunctionType Signature %3D Result %3D Parameters ] ] ")" %3D ParameterList %D ParameterDecl %D draw a parse tree to show the following string is legal. Start with FunctionType at the root Make sure you are following the grammar. Remember that each node gets its children nodes based on one of the above grammar rules. Stop when you reach the end of these rules and just indicate what replaces any remaining nonterminals (like IdentifierList and Type) func (int, int) bool
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